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Amateur Work Magazine Vol3



A Monthly Magazine Of The Useful Arts And Sciences, containing illustrated articles descriptive of electrical and mechanical apparatus, furniture and other useful articles, games, photography, pattern making, boat building, etc.

TitleAmateur Work Magazine Vol3
AuthorMiscellaneous
PublisherDraper Publishing Company
Year1904
Copyright1904, Draper Publishing Company
AmazonAmateur Work: A Monthly Magazine Of The Useful Arts And Sciences
-A Model Electric Railway III. The Track
Robert Gibson Griswold. For the successful operation of a model railroad, it is essential that the track should be especially well designed and built. A model seldom has the proportionate weight to...
-Cutting Tools For Planer Or Lathe
W. J. Kaup. Planer tools will first come under our notice as being the simplest and requiring the least skill in setting. You have doubtless observed that if the chip be unwound from the spiral sha...
-Cutting Tools For Planer Or Lathe. Continued
Referring to Fig. 2, we will take up the rake and clearance of lathe diamond point tools. The angle or clearance, sometimes called the angle of relief, as indicated here, is about 7, and sometime...
-Brown Prints Instead Of Blue
James Thomson The blue print as a means of artistic expression, is no doubt the simplest method of sun printing available for photographic purposes, but the Color is a serious objection, for the ge...
-Machine Drawing
Carl H. Clark. Fig. 1 shows the most common forms of riveting a is the ordinary cone head rivet, b the round head rivet, and c the countersunk head rivet, the latter being used where it is desired ...
-Microscophy For Amateurs
S. E. Dowdy. M. P. S. The microscope nowadays plays such an important part in scientific work that its claim to be called an instrument of precision and value is hardly likely to he disputed. Mi...
-Introduction 1
The Suggestion Offer is again called to the attention of readers. Anyone sending us a brief description of anything which would be of general interest, and which is accepted for publication, will be...
-Books Received 1
Diseases of Gasolene Automobiles and How To Cure Them. A. L. Dyke and G. P. Dorris, 210 pp. Price $1.50. A. L. Dyke, St. Louis, Mo. The rapid increase in the use of gasolene engines as the motor fo...
-A Bench Micrometer
R. G. Griswold. A bench micrometer is a very handy tool for the amateur who is doing a high class of work in which accuracy of measui-ement is essential. In the physical laboratory it is almost ind...
-A Spring Box Couch
John F. Adams. The upholstered spring couch here described will be found very convenient, as the box base has ample capacity for the storage of bed clothes, and wash dresses and other clothing can ...
-A Power Dory IV. The Deck
Carl H. Clark After the deck is laid and trimmed off, the top of the 6tern board should also be trimned 3-4 above the level of the deck, and to the same curve. The stem is cut off and shaped as sh...
-A Power Dory IV. The Deck. Continued
The bulkhead is of 5-8 tongued and grooved sheathing, and is nailed at its upper edge to a strip nailed on the under side of the deck beam; cleats are fastened to the plank to take the lower ends of ...
-Printing For Beginners I. Introductory
Frederick A. Draper While much has been written upon this important subject, and many books are available for those who desire to make a study of it, yet it is the belief of the writer that these b...
-Hand Saws. Their Construction And Use
Extracts From HANDBOOK FOR LUMBERMEN, Henry Disston & Sons. The demand for an article of instruction on saw filing having been demonstrated to us not only by personal inquiry and letter, but als...
-Model "Reliance"
This model is designed as a companion to the Shamrock III model in the last issue. The general directions for making the latter model apply to this one equally well. The dimensions of Fig. 1 are as fo...
-Marble Coaster
Kenneth G. Robinson. The reader of this department who may have a youthful brother or sister for whom he would construct a pleasing toy, will find this marble coaster well worth the making. The...
-Handy Receipts
Household Paste A strong, clean, lasting paste which will not sour, may be made in the following manner: - Into a double boiler or other suitable vessel, put three pints of flour, gradually adding ...
-Correspondence
Our readers are invited to contribute to this department, but no responsibility is assumed for the opinions expressed in these communications. Illustrate the subject when possible by a drawing or p...
-Trade Notes
In response to the frequent demands for Yankee Screw Drivers put up in substantial and well finished boxes to be used by amateur mechanics who desire to keep their tools in fine order, and gentlemen w...
-Gas Engine Spark Coils I. Coils for "Make and Break" Type of Igniters
Albert Graham. Two methods of electric ignition are in general use to explode the compressed charge behind the piston of a gas or gasoline engine. These are commonly called the make and break spa...
-Microscopy For Amateurs
S. E. Dowdy. M. P. S. Leaving this brief outline of the instrument's history, we will presume the reader unacquainted with microscopy and on the lookout for a micro-scope, and trust that the follow...
-Judgment In Mounting Prints
Francois Voitier A chain is as strong as its weakest link, no stronger. One defective and eleven perfect links form a chain of no greater resisting qualities than should the entire twelve be imperf...
-Games For Christmas
John F. Adams The approach of Christmas, and the accompanying discussion relative to presents for boys, recalls the making of a few games which would be particularly suitable for presents, are easi...
-Carrom Bowling Alley
A particularly desirable feature of this alley is, that the pins and shooting point are both at the same end of the board, thus avoiding the necessity of constantly moving to the other end to set up t...
-Bagatelle Board
The general construction of this game is quite similar to that just described, excepting the shape and omission of the pocket. A bottom board 45 long, 21 wide and 3/4 thick is required. This will h...
-The Design And Use Of Gas Engines I. Types of Engines
Frank N. Martin. The extensive increase within the last few years in the use of gas engines as generators of power for automobiles and launches, and to almost as great an extent for stationary pur...
-A Model Electric Railway. IV. A Semaphore
Robert Gibson Griswold. The electric semaphore is an electrically operated signal which denotes, in the case of a block system, a clear or otherwise block, or section of track. The fact is indicate...
-Machine Drawing. II
The shapes of rivets and rivet heads were given in the previous plate. Three examples of riveted joints are here given. That shown in Fig. 7 is a single riveted lap joint. The general usuage governing...
-Introduction 2
This is the last month of the special prize offers. Some of our readers will secure valuable tools, and the magazine a largely increased list of interested readers. The near approach of Christmas l...
-A Jolly Balance
Robert Gibson Griswold The jolly balance is especially convenient in the determination of the specific gravity of solid substances, insoluble in water, on account of the rapidity with which the wor...
-A Hand Cylinder Printing Press, Suitable for an Amateur's Newspaper, Posters and Proofs
Many amateur printers find the cost of a press large enough to print a small newspaper, much too great to permit of their obtaining them, and so are obliged to do without the instructive pleasure and ...
-A Power Dory V. The Engine and Fittings
Carl H. Clark. The engine is now to be obtained and installed. The question of the best make will be largely a matter of personal preference and also of price. Almost all of the engines on the mar...
-A Power Dory V. The Engine and Fittings. Continued
A piece of fine wire gauge is to be fastened over the end of the pipe to prevent dirt from filling it. It is also advisable, but not absolutely necessary, to have a valve on this water inlet next to t...
-Printing For Beginners. II. The Method of Manufacturing Type and the Sizes
Frederick A. Draper Before considering the selection and handling of type, a brief description of the method of its manufacture will be given. First in the process is the making of the punch, a ste...
-Hand Saws. Their Construction And Use #2
Extracts From HANDBOOK FOB LUMBERMEN, Henry Disston & Sons. The teeth of a hand-saw should be filed so true that, on holding it up to the eye and looking along its edge, it will show a central g...
-Induction Coil Experiments For Beginners
I do not think it need be supposed that even an amateur will buy or make a 4 or 6 coil, without having some set purpose in view, or a good idea of the uses to which he intends to put the induction c...
-Handy Receipts #2
To Clean Lenses Clean lenses as rarely as possible. Use old linen or a very soft chamois skin, but never use silk. If greasy, wet with a weak solution of cooking soda, and wipe dry with the cloth o...
-A Magic Lantern For the Home or Small Halls
As a means of pleasant and interesting entertainment, a well made magic lantern possesses many attractions to the amateur, and this is especially true if several friends also have lanterns, the exchan...
-A Magic Lantern For the Home or Small Halls. Continued
The condenser cell is made as previously mentioned for the focussing tube. The size is regulated by that of the condensing, lenses plano-convex lenses 4 1/8 diameter being used in this lantern, as th...
-Microscopy For Amateurs. III. Objectives And Eye-Pieces
S. E. Dowdy. M. P. S It now only remains to describe the objectives and eyepieces. Microscope lenses, objectives, or powers as they are variously termed, consist of combinations of lenses of varyin...
-English Mechanic. A Small Table
John F. Adams This small table was made to use up some odd pieces of wood, but has proved so very convenient that a description is here given. The top is 22 x 32 x 7/8, glued up from two pieces ...
-Photography. An Electrically Operated Flash-Lamp
The particular advantages of this flash lamp are; - It may be operated from any location, and at any time desired by the operator without others having previous notice of when the lamp will flash. It ...
-A Model Steam Turbine
W. Halcot Hingston The steam turbine, where used as the propelling machinery of a model steamer, has several distinct advantages over engines of the reciprocating type. When designing machinery for...
-Fruit And Nuts As Food
The United States Department of Agriculture has for several years been conducting a series of experiments to determine the dietary value of different foods. Nine dietary studies and thirty-one dige...
-Introduction 3
The turning lathe mentioned in our advertising columns is a tool which the readers of this magazine will undoubtedly welcome with great enthusiasm. It is in no sense a toy, but a practical lathe, upon...
-Handy Receipts #3
Black Ink The chemicals required to make one gallon of best black ink are: Nigrosine, P. 1 1/2 oz. Methilyne Blue, 3 1/4 oz. To one quart of water, either hot or cold, add the Nigrosi...
-Transformers And Choking Coils
M. I. E. E. Fundamental Principles. - For purposes of transmission and distribution of electricity for lighting and power purposes on a large scale, high pressure currents are necessary from th...
-The Grindstone And Its Use
Olcott Haskell Sloyd Instructor, Hitchcock Military Academy, San Rafael, California. The dirt and inaccuracy usually accompanying work at the grindstone are certainly not attractive features, an...
-How To Build A Sailboat. I. Lines and Laying Out
Carl H. Clark The type chosen as being the easiest for the amateur to build is that known as the square sider, as the lines are to a large extent straight with few sharp turns, thus making the ea...
-Hand Saws. Their Construction And Use #3
Extracts From HANDBOOK FOR LUMBERMEN, Henry Disston & Sons. Fig. 13 is a representation of some of the saws we have seen; there are entirely too many such now in use, and we have no doubt their o...
-Gas Engine Spark Coils. II. Coil for "Jump Spark" Ignition
Albert Graham A fat spark is desired to insure regular ignition, and to avoid misfiring, a trouble frequently met In the operation of gas engines, but which may be almost entirely avoided if ca...
-Printing For Beginners. III. Cases, Stands and Other Furnishings
Frederick A. Draper To separate words and characters, spaces of varying width are used, the thinner ones being termed spaces and the thicker, quods, shortened from quadrates. In shape they resemble...
-A Model Steamboat
Carl H. Clark The boat illustrated is similar in style and shape to the fast steamers running on the ocean. It is designed to be 50 long on top, 8 wide and 6 deep at the low-est^point and should...
-Correspondence #2
No. 68. lakewood, ()., Nov. 17, 1903. I would like to operate a wireless telegraph a distance of about eight miles. Will the apparatus des cribed in the June and July numbers of 1902 be sufficient?...
-Books Received 2
Tools and Machines. Charles Barnard. 158 pp. Price $1.25, Silver Burdett & Co., Boston, Mass. As an introduction to the study of tools and machines and their uses, teachers of Sloyd and the first g...
-Acetylene Generator For Magic Lanterns
The acetylene generator here described is of ample capacity for providing sufficient gas for an evenings use of the magic lantern described in the previous number of this magazine. It is perfectly saf...
-Lantern Slide Making. I Introduction - Slides by Contact
R. G. Harris The object of these chapters is to place before the slide worker a general review of the standard process for the production of slides, with descriptions of reduction and contact metho...
-Chemically Colored Lantern Slides
Mrs. C. R. MILLER. Over a year ago, Western Camera Notes published the following formula for the toning of lantern slides, that is, giving a wide range of tones in brown, red, blue and green. Br...
-Bath-Room Cabinet
John F. Adams As the bath rooms of modern houses are seldom provided with cupboards wherein medicines and toilet articles may be kept, the cabinet here described will be found a most convenient pie...
-Microscopy For Amateurs. IV. Testing the High Power Lens
S. E. Dowdy. M. P. S. Microscope lenses are subject to three principal defects. They may show spherical aberration, chromatic aberration, or want of flatness of field. For the causes and means of r...
-Microscopy For Amateurs. IV. Testing the High Power Lens. Continued
We now have what is known as critical illumination, and the object to be viewed is brought into this brilliant image of the lamp flame after first removing the ground glass slide. As only a very small...
-Books Received 3
Introductory Course in Mechanical Drawing, J. C. Tracy, C. E. and E. H. Lockwood, M. E., American Book Co., Boston, 155 pp. 10 1/2 x 7 1/2 Inches, $1.80. While there are many instruction books upon...
-Handy Receipts #4
Cement For Glass And Metal. An excellent cement for uniting glass to metal is made as follows: - Pure gum arabic is soaked in a small quantity of water for 12 hours and will then be of about the co...
-Machine Drawing. III
Pulleys, gears, cranks, and other pieces are fastened to shafts by means of keys, the usual form being shown in Fig. 14. Keys, in their several forms, prevent the piece from turning other than with th...
-Introduction 4
The turning lathe premium announced in the previous issue is quite as successful as we anticipated it would be, and many readers of this magazine will soon be the happy owners of these lathes. Those w...
-A Simple Balance
Robert Gibson Griswold. A pair of good balances is a very valuable acquisition to the amateur's dark room or laboratory, and they are often quite expensive. The one herein described is not very har...
-A Mechanic's Note-Book
Amateur. In almost anyone's daily reading and experience he comes across many notes and sketches which are worth saving for future reference. These are apt to be taken down on loose shee...
-Elementary Mechanics. I. The Lever
Prof. J. A. COOLIDGE, English High School, Cambridge, Mass. How can a teamster with a long stick of timber lift one corner of his heavily loaded wagon, so that a wheel can be taken off? How can a f...
-How To Build A Sailboat. II. Setting Up The Frame
Carl H. Clark Fig. 6 shows the method of setting up the foundation for building. It is supported as shown and braced fore and aft and sidewise very strongly, as there may be considerable strain bro...
-Printing For Beginners. IV. Composition
Frederick A. Draper We have now reached that part of the work in which use will be made of all the materials and furnishings previously described. Other necessary adjuncts will be considered when t...
-Thermit, The New Compound
A. Frederick Collins As wonderful in its production of high temperature as liquid air is in its cold producing properties, ranks thermit, the latest invention. This marvellous new compound, to whic...
-Boot Blacking Stand
Francis L. Bain When making any article of furniture it is advisable to first, plane and finish to the proper size, all the smaller and narrower pieces of wood when possible, then finish up the lar...
-II. A Model Steamboat
Carl H. Clark The Turbine described in the January number will serve very nicely to propel the steamer. Its position in the boat should be about on section No. 3. A small seating or foundation shou...
-Tools And Their Uses,
Cold Chisels are used for cutting metal. The more commonly used shapes are here illustrated. The Flat is used for wide cuts of no great depth. The Cape is used for narrow cuts, and in the hands of a s...
-Correspondence #3
No. 70. Philadelphia, Pa. Jan. 18, 1904. I would like to know if you could give the approximate cost of building the sailboat described by Carl H. Clark in the Jan. '04, issue. Also, if a gasoline ...
-A Hot Air Engine
W. C. Houghton It is the purpose of this article to describe a small caloric or hot-air engine, which may be used to drive a dynamo, small lathe, sewing machine, or for any similar purpose not requ...
-Microscopy For Amateurs. V. Testing the High Power Lens
S. E. Dowdy. M. P. S Now, with regard to the question of the aperture of the lens, suppose, for example's sake, we were observing the minute markings on a diatom valve with a narrow apertured lens ...
-Microscopy For Amateurs. V. Testing the High Power Lens. Continued
To test an oil immersion or water immersion lens it should be tried upon stained bacteria, or suitable diatoms, but as such a lens does not comprise part of an ordinary students' outfit, we can leave ...
-Lantern Slide Making. II. Slides by Reduction on Commerical Plates
R. G. HARRIS In the previous chapter a very elementary de-cription was given of the production of a lantern slide with the aid of a printing frame. The method given would scarcely satisfy any but a...
-Pattern Making For Amateurs. I. Somtehing about Suitable Wood
F. W. PUTNAM This series of articles on pattern making will be so written as to be of value to those amateurs whose stock of tools is not large, and to those whose practical experience with model m...
-Books Received 4
Silverwork and Jewelry. H. Wilson, D. Appleton & Co., New York, 7 3/4 x 5, 346 pp. 169 illustrations and 16 page plates. $1.40 net. Wood Carving. George Jack, D. Appleton & Co., New York, 7 3/4 x 5...
-Introduction 5
The article on the Hot Air Engine in this issue is to be followed by one on a Dynamo and one on a Storage Battery; all of about the same capacity, making together a nicely designed combination...
-How To Make A Set Of Weights
Robert Gibson Griswold. The following described set of weights is intended to go with, or be used with, the balance described in the last issue of Amateur Work. The balance cannot be of much use wi...
-How To Build A Sailboat. III. Making The Frame
Carl H. Clark. The next things to be gotten out are the moulds, or temporary forms, upon which the boat is shaped. There is one of these for every cross section laid out on the floor. They are mad...
-How To Build A Sailboat. III. Making The Frame. Continued
The planking should be either of pine, cedar, or cypress as is most convenient. It must be well seasoned and dry, in order not to check and shrink after being fastened into place. If possible, it shou...
-Printing For Beginners. V. Emptying the Composition Stick and Distribution
Frederick A. Draper When the composing stick has been filled it has to be emptied on to a galley. The illustration shows the position of the hands when doing this. The first efforts of the beginner...
-A Model Steamboat. III. The Boiler
Carl H. Clark The boiler here described is of the type known as the Scotch cylinder. The shell is 6 diameter and 8 long. It is rolled up from a sheet of copper 8 wide, 19 1/4 long and 3-32 th...
-A Model Steamboat. IV. The Boiler Fittings
Carl A. Clark. The next proceeding will be to fit up the boiler with steam gauge, safety valve, water glass, etc. It is recommended that the fittings be purchased of some of the dealers in such ar...
-Modern Ruhmkorff Coils
The modern American type of Ruhmkorff transformer, or induction coil, is one of the most important pieces of electrical apparatus to be found in an experimental laboratory. It differs so materially in...
-Elementary Mechanics. II. Friction
F. A. Coolidge Before proceeding further with the study of machines we must see what influence friction has upon their action, and what means must be employed to make it as small as possible. Frict...
-Electricity By Experiment. I. Magnets
Faraday, the great electrician, was not satisfied to read of new experiments, but made a practice of working them out for himself, that he might observe everything connected with the processes, and le...
-Correspondence #4
No. 74. Chicago, ILL., Feb. 18,1904. Being a reader of your paper, Amateur Work I would like to ask how a storage battery can be sealed up so as to prevent it from corroding at the connections. ...
-A Spectroscope
A. Roth Well. The high price of many of the required instruments prevents amateurs and students from purchasing them, and entering into the study of the natural sciences, much valuable knowledge an...
-Lantern Slide Making. III. Commercial Lantern Plates
R. G. HARRIS At the present time nearly the whole of the lantern slides produced by the vast army of lantern slide workers are made on commercial lantern plates. Their convenience and excellence ha...
-Lantern Slide Making. III. Commercial Lantern Plates. Continued
The bath referred to is prepared by dissolving in ten ounces of water one ounce of sodium bisulphite; in another ten ounces of water four ounces of sodium hyposulphite are dissolved ; and then, while ...
-Pattern Making For Amateurs. Planes and Other Tools
First Exercise F. W. Putnam The first requisite in the way of tools and appliances will be a carpenter's bench. Many readers will doubtless have a bench which will be entirely satisfactory for t...
-Pattern Making For Amateurs. Planes and Other Tools. Continued
Shrinkage An iron casting is always somewhat smaller than the mould in which it is made, and consequently smaller than the pattern. This is true of castings made from any of the common metals. Shri...
-A Wireless Telegraph Receiver
S. W. Lindsay Most wireless telegraph receivers are complicated, expensive and somewhat speculative, the results from them depending very materially upon one's skill and experience. Only a small pe...
-A Sensitive Relay
Arthur H. Bell The relay used in the coherer circuit of a wireless telegraph receiver must be of the highest sensibility. The resistance of the magnet windings should be at least 1000 ohms for expe...
-A Still For Water
R. G. Griswold Distilled water is being used for so many purposes, especially in the dark room, that every worker in this line should have a still with which he may provide himself with a liberal q...
-A Rotary Interrupter
The following is a description of a rotary interrupter which, when neatly constructed, should give higher frequency results than may be obtained with the ordinary type of vibrator. The first requisite...
-Introduction 6
Several very interesting articles as well as Correspondence are omitted from this issue, owing to lack of space. They will appear in the next issue, and at an early date the magazine will again be ...
-Books Received 5
Compendium of Drawing. Various authors. Two volumes, 410 and 477 pp., 9 x 6 3/4. $5.00 or $3.00 for single volume. American School of Correspondence, Chicago, 111. As might be expected of any book m...
-Sailing Rules For Launches. I. Conduct Of Launches When Under Way
Carl H. Clark In order to avoid collision it is necessary that vessels approaching each other, especially in crowded thoroughfares, should have some pre-concerted and well understood rules and sign...
-A Plant Stand Or Taboret
Francis L. Bain The tabourette about to be described may be made of either whitewood, basswood, or any dark colored hard wood, such as walnut or mahogany. If whitewood is used it may be stained in ...
-An Arm Chair
John P. Arthur Antique or colonial furniture, at present so much in vogue, has many characteristics that appeal to the average person, especially as it can be made by the amateur who may have a tas...
-Printing For Beginners. VI. Correcting Proof. Proof-reader's Marks
FREDERICK A. DRAPER. In the previous chapter, the method of taking proofs was given. As it rarely happens that the composition is without errors of some kind, we will now consider the way to indica...
-Hints Worth Looking Over
A reputation for promptness is one of the things that a job printer should strive for. He will have gained a great advantage when it comes to be said of him that he always gets work out on time, and i...
-How To Build A Sail-Boat. IV. Fitting the Deck and Cabin
CARL H. CLARK Fitting the step for the mast will be the next thing to do, as it is more easily done now than after the deck is laid. This step is a piece of oak, or other hard wood, about 5 wide a...
-How To Build A Sail-Boat. Fitting the Deck and Cabin. Continued
If the deck is to be finished bright, an oak board 9 wide, and 3/4 thick is first laid down the middle of the deck forward, joined to the stem and fastened to the triangular pieces of plank forward ...
-Elementary Mechanics III. The Inclined Plane
J. A. Coolidge We will next study the construction, uses, and advantages of the inclined plane. Next to the lever this is the simplest of the mechanical powers, and a machine that we can hardly fai...
-Electricity By Experiment. II. Magntic Field
The space surrounding a magnet over which the magnetic forces extend is known as the magnetic field. It is desirable to learn fully the direction and form taken by these magnetic lines of force, which...
-How Boys Can Earn Money. I. Flower Seeds and Fertilizers
A good business to be carried on with a small capital is that of selling flower and garden seeds and fertilizers. This Dusiness, although it can only be carried on in the spring, gives good profits wh...
-Books Received 6
Laboratory Phpsics. Dayton Clarence Miller. Cloth. 404 pp., 8 1/4 x 5 3/4, $2.00 Ginn & Co., Boston. This is essentially a laboratory manual, in which one hundred and twenty eight well selected exerci...
-A Rowing Skiff
Carl H. Clark. The skiff here described is one suitable either for a tender to a yacht, or for pleasure rowing on rivers, lakes, or ocean. This type of boat is very desirable for use in shallow wat...
-Lantern Slide Making. IV. Toning with Gold, Copper and Uranium - Reducing and Intensifying
R. G. HARRIS In preparing to discuss the subject of toning lantern slides made on ordinary gelatine lantern plates, I mast confess to having a rather decided bias against the operation. My opinion ...
-A Lantern Slide Holder
E. E. Messenger The lantern slide holder here described presents several advantages over any other which I have ever seen. It is compact, easily worked, and all slide are, when in position, in exac...
-Pattern Making For Amateurs. III. Green Sand Cores - Two Simple Patterns
F. W. PUTNAM It often becomes necessary for the pattern maker to make a pattern for a casting that is to be hollow, or to have a hole through it, in which case it is customary to make the pattern o...
-Open End Wrench Pattern
The third pattern is a common form of open end wrench and is shown in Fig. 11. The block for this pattern should be about 9 1/2 long, 2 1/2 wide and 7/8 thick. The face side, joint side and third s...
-Finishing Pattern
All wooden patterns should be covered with some protective coating so as to prevent warping, due to the moist sand in the mold and to prevent glued joints from coming apart. This coating will give a s...
-An Oil Immersed Condenser
Aruhtr H. Bell The peculiar property of a condenser, of retaining charges of electricity is a valuable factor in spark coil operation. In the primary circuit of a coil, or more accurately speaking,...
-A Mercury Interrupter
George J. Atkins Mercury interrupters have long been popular with users of high potential coils, but their cost, as compared with the simpler spring hammer vibrators, precluded their general adopti...
-Ginseng Seeds and Plants
IT. S. Minister H. N. Allen, of Seoul, Korea, has issued the following circular letter as a reply to the many inquiries from the United States at that legation relative to ginseng seeds and plants, an...
-Introduction 7
To make this magazine of the greatest possible value and interest to its readers, is the earnest desire of the publishers. In the selection of subjects to be presented in the successive issues the wan...
-Books Received 7
Bent Iron Work, Basket Work, Taxidermy. Handicraft series, edited by Paul N. Hasluck, 160 pp. 4x7 inches, 50 cents each. Cassell & Co., Ltd. London and New York. The Handicraft series of manuals, in w...
-A Chamber Set. I. The Bedstead
JOHN F. ADAMS The chamber set to be described in this and following numbers of this magazine is of colonial design, with a strong, substantial appearance, and yet not carried too far in the way of ...
-A Model Turbine Engine
Arthur J. Weed Copyright April, 1904 by Arthur J. Weed. All rights reserved. In designing and constructing a model turbine engine we are confronted with several problems which do not have to be ...
-A Model Turbine Engine. Part 2
After the wheel is turned to the required shape the' slots for the buckets must be made in the rim. If one has a milling machine or a lathe arranged for plain milling, the work is very easy. Most amat...
-A Model Turbine Engine. Part 3
The bearing sleeve is clearly shown in Fig. 12, and a cross section of same is seen in Fig. 10. For this purpose a piece of brass rod can be used. Two pieces are to be made, one for each bearing. In a...
-An 80-Watt Dynamo
W. C. Houghton The machine to be described in this article is intended to be of the simplest possible construction consistent with good workmanship and fair efficiency. It is of the bipolar type wi...
-An 80-Watt Dynamo. Continued
The corners of the \ pieces may now be cut off with a saw, and the whole put in lathe and turned off to 1 13-16 diameter. This job of drilling and turning the discs may be avoided if punched dis...
-How To Build A Sail-Boat. V. Fitting: Centreboard and Finishing Cabin
CARL H. CLARK The foundation may now be removed from under the boat, and she may be supported upon blocks and shored upright. At this time it will be well to put in place the remaining bolts in the...
-How To Build A Sail-Boat. Fitting: Centreboard and Finishing Cabin. Continued
The rudder is 1 1/2 thick at the stock and tapers towards the after end. The several pieces run parallel with the stock, and are bored with \ holes to match those in the stock. Galvanized iron rods ...
-Printing For Beginners. VII Job and Advertisement Composition
FREDERICK A. DRAPER To select and arrange types in such a way as to produce a well balanced, properly accented and artistic result requires skill which is not attained in a few weeks or months. Onl...
-Elementary Mechanics. IV. The Wheel and Axle
J. A. COOLIDGE Although there are nominally six simple machines, the lever, the pulley, the wheel and axle, the inclined plane, the wedge, and the screw; and although these machines are generally v...
-How Boys Can Earn Money. II Cutlery and Tool Sharpening
Any boy who can secure the use of a grindstone or emery wheel can engage in this business, which, if industriously followed up, will be found quite profitable. In most any place a sufficient number of...
-Electricity By Experiment. III. Induction
The magnets used to perform the previous experiments were made of steel, and incidentally it may be stated that the harder the steel, the longer will the magnet retain its strength, and also the great...
-A Sailing Dory
Carl H. Clark. This dory is of the usual type used for sailing. The dimensions 18 ft. long by 5 ft. wide, make a boat which, while not very heavy has still enough stability to carry sail well and b...
-A Sailing Dory. Continued
The wale which supports the seats is about 2 wide by 3/4 thick, and is bent around inside of and fastened to the moulds about 6 down from the top of the gunwale. The seats rest upon it and are plac...
-Pattern Making For Amateurs. IV. Face Plate - Hand Wheel - Core Pulley and Core Prints
F. W. PUTNAM The wood turning lathe is a most useful machine to the pattern maker in shaping to the required form many of the common types of patterns. The lathe adapted for pattern work should be ...
-Face Plate Pattern
Fig. 13 is a drawing of a finished face plate. The pattern will be of the same shape as the face plate, which is to be finished all over. Use a piece of clear dry pine for this pattern, 5 3/4 square ...
-Cone Pulleys Pattern
This is a much more difficult pattern to make as it is to be built up from three blocks, is more difficult to turn, and requires great care in molding. Fig. 15 represents the shape of the finished cas...
-Core Prints
When cores are made in core boxes and placed in the mold it becomes necessary to support them in such a manner that there can be no possible chance for a change of position during the time the mold is...
-Tool Sharpening Device
F. A. Draper Unless one has had considerable practice, the sharpening of wide chisels and plane irons on a emery wheel is quite likely to be an unsatisfactory operation, the difficulty being to get...
-Lantern Slide Making. V. Clouds in Lantern Slides - Combining Slides for Cloud Effects
R. G. HARRIS Lantern slides without clouds, are now as rare-ly seen as are prints without them. At the present time the percentage of landscape negatives that do not show clouds in them is small in...
-Introduction 8
At the solicitation of many of our readers we have decided to offer premiums for the sale of single copies of the magazine: - To anyone selling 12 copies, the premium for one yearly subscription will ...
-Telephone Circuits And Wiring. I. A Simple Arrangement For Short Lines
Arthur H. Bell. The subject of telephones and their application to private uses is a matter sparsely treated in electrical text books and technical publications. Much importance has been given, in...
-Current Reverser For Spark Coil
A spark coil is very incomplete without a commutator. One of a very simple kind, and much easier to make than the usual variety fixed to coils, is figured below. This is a modification of one illustra...
-A Storage Battery
W. C. Houghton The battery here described is of the pasted lead plate type and may be made of any desired capacity by using a greater or less number of plates. There are always an odd number of pla...
-Polarity Indicator
Amateurs frequently desire to learn the polarity of their primary or secondary battery terminals. There are several contrivances constructed of glass and depending upon the coloring of the solution co...
-A Simple Galvanometer
John F. Atkins Every amateur should possess an accurate galvanometer for general laboratory testing. While many high grade types of galvanometer are beyond the means of most electrical students, it...
-Lacing Leather Belts
The ends of belts are fastened together by means of lacing, threaded through holes punched near the ends of the belts. The lacing is usually an oil-tan leather, prepared especially for the purp...
-How To Build A Sail-Boat. VI. Fitting an Engine and Rigging the Sails
CARL H. CLARK The hull of the boat haying been completed in proper manner for use as a sailing boat, it has been thought best, in view of the great increase in power boating, to describe the slight...
-How To Build A Sail-Boat. Fitting an Engine and Rigging the Sails. Continued
The sails are made of heavy drill, the process being the same as described for the sailing dory. It is recommended, however, that two bights be turned in each cloth before sewing, as this makes a stro...
-Wireless Telegraph Plant By Amateur Work Readers
A wonderful piece of mechanism from the hands of schoolboys is that put on view recently in the Prince grammar school, Exeter and Newbury Sts. It is a wireless telegraph exhibit, and is the bigges...
-Photography. The "Pyro" Developer
The professional, as well as the old stager in the amateur ranks, uses pyro. The novices uses one of the many newer developers. For years, writes F. J. Clute, in the St. Louis and Canadian Photographe...
-Elementary Mechanics. V. The Pulley
J. A. COOLIDGE The pulley is a wheel with a groove in its rim set in a frame or sheaf. The wheel must turn freely upon its axis and carry a rope in the groove of its rim. If the frame of the pull...
-How Boys Can Earn Money. III. Making Jardiniere Stands
RALPH LAWRENCE BUGBEE. One of the easiest ways for a boy with a capital of $5 to earn money is by making small jardiniere stands and selling them to neighbors and friends. These stands are made of ...
-Varnish Making
The resins used in making oleo-resinous varnish are of vegetable origin, and some are said to be collected from the trunks of living trees; but by far the most of them are found in the earth, the tree...
-Trade Notes #2
There seems to be a growing demand for an accurate and reliable bench lathe that can be bought at a moderate price and at the same time is a complele screw-cutting, engine, bench lathe, suitable for l...
-A Chamber Set. The Bureau
John F. Adams. The general dimensions for the bureau are: Size of mirror, 42x30; top board over drawers, 50x22. Other sizes can be worked out by anyone desiring, the general proportions being ret...
-Pattern Making For Amateurs. V. Plain Cored Cylinders - Small Gland
F. W. PUTNAM In the last chapter 1 explained the difference between green sand and baked sand cores, and the use of core boxes and core prints. In practice, usually, no regular hole less than 1 in...
-Small Gland
At the commencement of this present article I stated that the small gland, the casting of which is shown in Fig. 30, might be made in at least six different ways. I give below six different methods fo...
-Joints In Wood-Working. I. Edge Joints
FRANCIS L. BAIN There is, perhaps, no one thing in amateur carpentry and joining which causes so much faulty work as the lack of a proper knowledge of how to make and when to use the various joints...
-Lantern Slide Making. VI. Retouching Lantern Slides - Spotting - Varnishing - Masking
R. G. HARRIS Before lantern slides have the finishing touches put to them in the way of spotting and binding, it is a wise course to put them through the lantern as soon as they are dry, to ascerta...
-Telephone Circuits And Wiring. II. Lines with Magneto Generator
ARTHUR H. BELL With the apparatus described in the last issue the amateur is enabled to establish communication between two points not more than a few hundred feet apart. In beginning this chapter ...
-Two Electrical Formulas
There are two formulas for electrical measurements which every amateur electrician should memorize. They enter into all sorts of calculations in telephone, telegraph, electric light and general experi...
-High Frequency Phenomena. Principles of Coil Construction - Wehnelt Interrupter
H. E. DILL The Ruhmkorff coil, with its many turns of fine wire coiled in sections and combined together to form a secondary, has been so long an indispensable part of a well equipped electrical la...
-Introduction 9
Sport, pastime, enjoyment seem to engross the minds of many of the young men of today to the almost entire exclusion of anything else. While these are right and proper, even beneficial in their way, t...
-How To Build A 12-Foot Row-Boat
Carl H. Clark A boat of the type and size to be described is a very convenient boat for rowing on a lake or on the salt water, and also makes a good tender for a yacht. The dimensions, 12' long by ...
-How To Build A 12-Foot Row-Boat. Continued
The plank is of \ pine, well seasoned and clear, and in 14' lengths. If desired the boat may be planked up on frames in the ordinary manner, but this is not considered advisable at present unless the...
-Soldering. I. Plain Soldering
H. M. CHADWICK The articles necessary for doing ordinary soldering are the flux, the scraper (an old knife will answer very well for the latter) the iron and the heater. The Flux. This is a flui...
-Casting In Soft Metals Or Alloys
The casting of metals having a low fusing-point is one of those things which is well within the reach of the amateur or professional caster, provided he has certain of his alloys made for him, and he ...
-Attachments For Lathe
F. H. Jackson Chuck for Lathe. The chuck shown will be handy for holding nuts to face off, or for that matter, a great variety of pieces to be turned. A can be made of cast iron with projection ...
-Photography. Printing Frame
Francis L. Bain The frame described below will undoubtedly fill a long-felt want in the workroom of many amateurs, particularly those interested in photography, as it can be made quite cheaply. For...
-Photography. Removing Air Bubbles
Air bubles, says the Amateur Photographers are a frequent source of misfortune to the beginner chiefly because he does not know how to control them. They are especially difficult to manage when deve...
-Posing The Hands in Photography
The pose of the hands is a favorite topic in photographic journals. It has recently been again pointed out that one of the greatest difficulties in posing hands has been the nervous consciousness of t...
-Books Received 8
Electrical Designs. Various authors. American Electrician Co., New York, 9x6; 262 pp. $2.00. There is probably no book published which would be of greater interest to advanced amateurs. The cons...
-Elementary Mechanics. VI. The Screw-Rivalling
J. A. COOLIDGE. VI. The Screw-Rivalling the lever both in frequency of use and in value is the Screw, a machine consisting of a cylinder or cone (See Fig. 16 and 17) with a thread or narrow inclined...
-Trade Notes #3
A cheap, portable, yet strong and accurate pair of Pocket Compasses has long been the wish of all whose occupation involves-the use of drawing instruments, such as builders, draftsmen, mechanics, engi...
-A Telegraph Transmitter
Frederick A. Draper. Those interested in wireless telegraphy experiments who have not learned the Morse code, and yet desire to transmit messages, can do so by means of the simple arrangement here ...
-Wireless Telegraph Apparatus
Howard W. Rice Appreciating the interest taken in electrical subjeots by the readers of Amatuer Work, especially in relation to signalling through space by means of high potential oscillations, the...
-Telephone Circuits And Wiring. An Intercommunicating System
ARTHUR H. BELL In manufacturing establishments, schools, apartment houses and hotels, the intercommunicating telephone furnishes the most direct means of conversation between manager and workrooms,...
-A Handy Combination
R. G. Griswold The enclosed sketch shows a very handy combination for the amateur's shop which takes up little room and has a number or points to recommend it. In the first place, the three tools a...
-A Bench Grinder
B. R. Wicks A small emery wheel about your workshop, house or barn can be made to do a large amount of useful work, such as grinding knives, shears, axes, chisels, plane irons, spoke shave irons, e...
-A Bench Grinder. Continued
B. R. Wicks Continuing the work of machining the bench grinder, lay out the boss for the bearing of rest No. 1 central with the boss and square with the spindle bearing, and drill and ream to 1/2 i...
-Pattern Making For Amateurs. VI. Core Box for Small Gland. Small Plunger. Crank
F. W. PUTNAM The core box for the gland is shown in Fig. 31, A. Round cores, like the one used for the plain cylinder, described in the July issue, are usually made in two part boxes, held together...
-Small Plunger
Fig. 32 shows a small plunger, the pattern for which is shown in Fig. 33. We will use a vertical core with this pattern, therefore A will be the top surface of the pattern, the arrow indicating the di...
-Small Engine Crank
Fig. 35 shows the casting for a small engine crank, the pattern being shown in Fig. 36. The base A, which is semicircular at each end, is shaped from a board large enough to finish 1/2 in. Fig....
-Photography. Printing In Platinum
W. M'Arthur It is not an easy matter to convince the beginner in photography that the simplest of all printing processes, and probably the most economical, is the platinotype. There is a strong att...
-Removing Films
A. Sodium fluoride, 6 gr ; water, 4 oz. B. Sulphuric acid, 6 drops ; water, 1 oz. Both solutions can be used until exhausted. Place the negative in A for a couple of minutes, then place directly in B\...
-Focussing Cloth
Any one who has wrestled with the orthodox focussing cloth in a high wind, will agree that it cannot be regarded as an ideal method of securing a well illuminated image on the focussing screen. In bri...
-Introduction 10
Model making, as a means of acquiring experience along mechanical and engineering lines, possesses much greater value than those who have not investigated its possibilities are aware. From model steam...
-Joints In WoodWorking. II. The Matched Joint
FRANCIS L. BAIN. Having given proper consideration to the extensively used glue or butt joint, we will next give our attention to the splined or keyed joint; also the matched or groove and tongue j...
-Tool Making For Amateurs. I. Kinds of Steel. Forge for Tool Making. Set of Useful Punches
ROBERT GIBSON GRISWOLD The art of tool making is one most valuable to the amateur worker, and should be practised whenever the opportunity presents. There are many special tools needed by the amate...
-Tool Making For Amateurs. Kinds of Steel. Forge for Tool Making. Set of Useful Punches. Continued
A good preliminary lot to work on will be a set of centre punches. These punches are almost constantly in use and should be well made. It seems to be a common opinion that almost any piece of round st...
-Soldering. II. Using Bunsen Burner And Blow Pipe
H. M. Chadwick. The Bunsen burner and the blow pipe are needed by one who would become proficient in the art of soldering. A cheap and satisfactory Bunsen burner may be constructed as follows: M...
-How To Make Electrotypes
S. R. Bottone The enthusiastic amateur who has succeeded in producing some of the beautifully artistic work of which the lathe is capable, or who has in his possession a coin or medallion fr...
-The High Tension Engineer
A paper read by T. M. Lincoln before the J3th. convention of the Canadian Electrical Association. There are two schools in which the electrical engineer may receive his training, but only one in wh...
-A Sensitive Galvanometer
A sensitive and well-made galvanometer may be used for a variety of purposes. Not only may it be used for the testing of resistances, both high and low, but by the use of a proper shunt may be used to...
-Elementary Mechanics. VII. Fluids
J. A. COOLIDGE All substances that flow are called fluids, whether they be liquids that are heavy like water, and that exert a noticeable pressure because of their weight, or gases like air, whose ...
-Correspondence #5
Our readers are invited to contribute to this department, but no responsibility is assumed for the opinions expressed in these communications. Letters for this department should be addressed w edit...
-Trade Notes #4
Amateur photographers should inquire of dealers for the Franklin developing clips. By means of these clips plates can be handled throughout development without having the hands come in contact with th...
-A Telegraph Recorder
Frederick A. Draper. Until one has acquired the ability to read telegraphic sounds by ear, some form of recording instrument is necessary to enable messages to be received. The apparatus here descr...
-A Chamber Set. III. Chiffonier for Men
JOHN F. ADAMS A chiffonier, designed especially for gentlemen's use, is at present a novelty in the furniture line, but is rapidly becoming very popular, as it allows the wardrobe to be much more c...
-Pattern Making For Amateurs. VII. Methods for Making Split Patterns. Fillets
F. W. PUTNAM A great portion of cast iron and brass work is so designed as to require the patterns to be split . That is, made up in two pieces. In a jointed pattern the moulding is greatly facil...
-Pattern Making For Amateurs. Methods for Making Split Patterns. Fillets. Continued
After gluing and inserting the pins the two halves of the pattern must be firmly fastened together in such a manner that they can be turned as one piece. There are four ways of doing this and a brief ...
-Photography Printing In Platinum. II. Developing the Print
W. M'ARTHUR The developer may well be made up in bulk, as it keeps well. A special developer known as D salts is sold by the Platinotype Company, and gives admirable results, but neutral potassium ...
-Photography Printing In Platinum. Developing the Print. Continued
Printing in damp weather, or any cause that leads to the paper becoming moist will, in the early stages, tend to muddy looking prints, and prolonged printing in dull rainy weather will lead to the ima...
-Telephone Circuits And Wiring. IV. Potting up the Line
ARTHUR H. BELL In the previous chapters a description of apparatus suitable for operation over a considerable distance. The next matter of interest is the construction of a pole line to carry the t...
-Handy Hints For Amateurs
Contributions are solicited for this department, and for each accepted article the sender will be given the choice of any one-subscription premium from our premium offers. bench trimmer and saw blo...
-Sailing Rules For Yachts
Carl H. Clark Before stating the rules certain definitions of the terms used are necessary. A boat is on the starboard tack when she has the wind on the starboard (right) side, and is on the port t...
-Introduction 11
Note the new address, 88 Broad St., Room 522, In the office of a large manufacturing concern the editor was recently shown a letter in which the writer made application for a chance to learn the ma...
-Books Received 9
The Mechanical Arts Simplified. B. B. Dixon. Laird & Lee, Chicago, 111. 8 1/2x6 in ; 497 pp. Flexible leather covers, $2.50 ; cloth, $1.50. A mechanic, be he amateur or professional, cannot collect...
-Design For A Light Gasolene Car
J. C. Brocksmith. M. E. Reprinted by Special Arrangement with the American Electrician. The accompanying working drawings illustrate a type of gasolene automobile which is about as light and sim...
-Design For A Light Gasolene Car. Continued
J. C Brocksmith. M. E Reprinted by Special Arrangement with the American Electrician. The crank shaft is shown in Fig. 9. This is preferably made from a solid open hearth steel forging, the cran...
-Tool Making For Amateurs. II. A Set of Cold Chisels
ROBERT GIBSON GRISWOLD In our first chapter we considered briefly the forging of a set of light hand tools, and in this chapter we will extend this set to that of a series of cold chisels of variou...
-When to Obtain Patents and How to Develop Patents
Whether because of the stories of immense fortunes to be made through patents, or the natural prodnct of the fertile ingenuity of the people of this country, it certainly is a fact that an immense num...
-Elementary Mechanics. VIII. Buoyancy
J. A. COOLIDGE That bodies heavier than water sink, and if lighter than water float, is a fact so well known as to make any such statement unnecessary. Yet the relation these bodies bear to water a...
-How Boys Can Earn Money
Ray L. Southworth To help increase the income of the workers who read Amateur Work by means of some little business that will be agreeable and dignified, the following are offered. All have been ac...
-Lantern Slides From Prints
Making lantern slides from book illustrations without a camera is possible by a method described in Camera Craft by B. Roloff. A half-tone illustration from a popular magazine may be found to have its...
-Clement Universal Saw Bence
The following description of the Clement universal saw bench, manufactured by the American Woodworking Machinery Co., 136 Liberty Street, New York, will be of interest to manual training teachers, pat...
-A Rheostat
R. G. Griswold. In order that the strength of a current may be varied at will within certain limits, it is necessary to insert in series with the source of supply a variable resistance. The instrum...
-A Hand Milling Machine
Albert Graham Many, many times have models of inventions and machinery fallen wofully short of the acme of perfection indicated by the general finish of every other part, in those insignificant lit...
-Telephone Circuits And Wiring. V. Telephone Troubles
ARTHUR H. BELL Assuming that several readers have constructed private lines, as described in the September number, a few points of instruction are here given in the clearing of trouble, which is bo...
-Pattern Making For Amateurs. VIII. Base Piece of Small Jack Screw. Handy Appliances
F. W. PUTNAM The next pattern to be described is for the base piece of a small jack screw, the design of which was made by J. M. Tate of the University of Minnesota. Fig. 47 shows a sectional vi...
-Bicycle Foot Power
W. C. Houghton Most boys have, or can obtain at a very small expense, a bicycle that has passed its usefulness as such. If the frame, crank shaft, chain and rear wheel are in fair condition, it can...
-Nail And Screw Cabinet
F. E. Lindsay The cabinet herein illustrated is designed to do away with the needless boxes of nails and screws which too often litter up the shelves and workbench of a small shop. Room is valuable...
-Notes On Wireless Telegraphy. I Nature of Wireless Telegraphy
L. T. KNIGHT Wireless telegraphy is the name given to the transmission of dots and dashes by means of waves set in the ether by powerful oscillating discharges. Ethral waves conveying perceptibl...
-Chemical Fire Extinguisher
William K. Slyke If there is any place where fire is likely to occur it is in the amateur's workshop, especially when he is experimenting with combustible chemicals, and if it should start from oil...
-Introduction 12
With this issue we close the third year of publication of this magazine. During this time many incidents have occurred to encourage us and which show that our work is meeting with full appreciation fr...
-Tool Making For Amateurs. III. Special Tool Steels
ROBERT GIBSON GRISWOLD In this chapter we touch for the first time the domain of special tool steels. The small hand tools treated in the first two chapters were all made of what is commonly known ...
-Twist Drills. Their Uses And Abuses
By Courtesey of the Cleveland Twist Drill Company. The advent of the now common twist drill marked a very important period in mechanical industry. It is, all things considered, the most efficient t...
-Elementary Mechanics. IX. Specific Gravity
J. A. COOLIDGE We saw in our last chapter that every solid sub-stance, when floating or immersed in a liquid, lost part or all of its weight, and that in bodies capable of floating, the shapes coul...
-A Letter To Young Men
Michael Dawes Wanted. Good, bright, intelligent American boys between sixteen and eighteen years old to learn the machinists trade; must have had a grammar school education or its equivalent. Appl...
-Joints In Woodworking. III. Mortise and Tenon and Dowelled Joints
FRANCIS L. BAIN The style of joint to be used in door, sash and blind work and other work of a similar nature depends largely upon two factors, namely: thickness of material to be used, and purpose...
-Electric Alarm For Clock
E. A. White It will undoubtedly interest some of the readers of this magazine to know how to arrange an alarm clock so that it will close an electric circuit at the time at which the alarm is set t...
-Correspondence #6
No. 84. Chicago, III., Sept., 1904. In several published description of receiving instruments for wireless outfits, one side of the coherer goes to the aerial wire and the other side to the earth. ...
-Drill With Adjustable Tension
Of all the automatic hand drills in the market up to the present time there has never been one that has been entirely satisfactory for general use. The trouble has been that no one strength of spring ...
-Jointers And Buzz Planers
The accompanying cut illustrates the latest im-proved new pattern machine, manufactured by the American Woodworking Machinery Co. It has been made heavier and stronger, and with the improvements is th...
-Amateur Work 1904 News
The most expensive saws in the world are those in use in the factories of Pennsylvania, where various articles are manufactured from the slate. In one of these factories there are 300 horizontal saws,...
-Amateur Work 1904 News. Part 2
The ratio between bore and piston stroke of modern petrol motors, according to the average of the motors fitted on cars taking part in the Automobile Club's trial, is 100, 115.6. The cylinder capacity...
-Amateur Work 1904 News. Part 3
In a paper read before the German Physical Society, Mr. H. Starke describes experiments on cathode rays, which confirm the idea that the apparent mass of the flying corpuscles is purely electrical. ...
-Amateur Work 1904 News. Part 4
In Algeria, steps are now being taken for the production on a large scale of natural soap from the tree known as Sapindus utilis. This tree, which has long been known in Japan, China, and India, produ...
-Amateur Work 1904 News. Part 5
The world's consumption of emery is 25,000 tons annually, of which Asia Minor supplies some 18,000 tons, valued at $250,000; Canada, 388 tons, valued at $50,000; and Naxos, 6,328 tons, valued at $130,...
-Amateur Work 1904 News. Part 6
German papers state that the French Government is at present considering the question of the use of white lead and other lead mixtures for painting houses. A committee of the Chamber of Deputies has b...
-Amateur Work 1904 News. Part 7
As a result of three years research, Prof. Burgess, of Wisconsin University, aided by an assistant, has, it is said, found a method of making pure iron at a cost of a cent a pound. The process is stat...
-Amateur Work 1904 News. Part 8
The Japanese explosive, Shimose, has been said to be more powerful than either dynamite or guncotton, Shimose does not explode on percussion, or by fire, and is not injured by wetting. When it is expl...
-Amateur Work 1904 News. Part 9
Lac is the incrustation deposited by the lac insects on the branches of certain trees, and is collected, as a a rule, by the jungle tribes, who break off the branches on which it is deposited. In this...









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