The Tinman's Manual And Builder's And Mechanic's Handbook | by Isaac Ridler Butt
Designed For Tinmen, Japanners, Coppersmiths, Engineers, Mechanics, Builders, Millwrights, Smiths, Masons, Carpenters, Joiners, Slaters, Plasterers, Painters, Glaziers, Pavers, Plumbers, Surveyors, Gaugers, etc; with Compositions and Receipts for other useful and important purposes in the Practical Arts.
By I. R. BUTTS, Author of the " United States Business Man's Law Cabinet," " Business Man's Law Library ;" " Merchant's and Shipmaster's Manual and Shipbuilder's and Sailmaker's Assistant," etc, etc.
Preface- The present work is offered to Tinmen, Builders, Mechanics, and Engineers, as a useful manual of reference, and information. The first part of the work ...
Manufacture Of Tin Plate- The different processes of the manufacture of tin plate may be described most properly in seven distinct stages. The first begins with the bars of iron which ...
Quality Of Tin Plate- The tests for tin plates are ductility, strength, and color; and to possess these, the iron used must be of the best quality, and all the process be conducted ...
How To Find The Circumference Of Any Diameter- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Fig. 1. From the centre C describe a circle AB, having the required diameter; then place the ...
How To Find The Area Of The Sector Of A Circle- Rule. Multiply the length of the arc DGE by its radius DC, and half the product is the area. The length of the arc DGE equal 9½ feet, and the radii CD, CE, ...
Proportion Of Circles- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y. Original. Fig. 2. To enable machinists to enlarge or reduce machinery wheels without changing ...
How To Describe An Ellipse, of Oval- [Simple Method.] Fig. 3. At a given distance, equal to the required eccentricity of the ellipse, place two pins, A and B, and pass a string, ACB, round them; ...
How To Describe An Ellipse- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Original. Fig. 4. To describe an ellipse of any length and width, and by it to describe a ...
How To Find The Circumference Of An Ellipse- Rule. - Multiply half the sum of the two diameters by 3.1416, and the product will be the circumference. Example. - Suppose the longer diameter 6 inches and ...
How To Find The Area Of An Ellipse- Rule. - Multiply the longer diameter by the shorter diameter, and by .7854, and the product will be the area. Example.- Required the area of an ellipse whose ...
How To Describe A Right Angled Elbow- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Original. Fig. 5. First construct a rectangle ADEB equal in width to the diameter of the elbow, ...
How To Describe A Curved Elbow- [Drawn for this work by L.W. Truesdell, Tinman, Owego,N. T.] Original. Fig. 7. FIG. 8. Describe two circles UX and V'S, the curves desired for the elbow, ...
Soldering- For Lead the solder is 1 part tin, 1 to 2 of lead; -- for Tin 1 to 2 parts tin to 1 of lead; - for Zinc 1 part tin to 1 to 2 of lead; -for Pewter 1 part tin to ...
How To Describe A Straight Elbow- [Old Method.] Fig. 6. Mark out the length and depth of the elbow, ABCD; draw a semicircle at each end, as from AB and CD; divide each semicircle into eight ...
How To Describe Bevel Covers For Vessels, Or Breasts For Cans- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Fig. 11. From 0 as a centre, describe a circle BE larger than the vessel; and from C as a centre, ...
How To Describe Pitched Covers For Pails, Etc- Fig. 12. To cut for pitched covers, draw a circle one inch larger than the hoop is in diameter after burring, then draw a line from the centre to 3 the ...
How To Describe An Oval Boiler Cover- [Drawn for this work by L. W. TRUESDELL, Tinman, Owego, N. Y.] Fig. 13. From C as a centre, describe a circle whose diameter will be equal to the width of the ...
How To Describe A Lip To A Measure- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Original. Fig. 14. Let the circle AB represent the size of the measure; span the dividers from K ...
The Circle And Its Sections- 1. The Areas of Circles are to each other as the squares of their diameters; any circle twice the diameter of another contains four times the area of the other.
How To Describe A Flaring Vessel Pattern, A Set Of Patterns For A Pyramid Cake, Or An Envelope For A Cone- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Original. FIG. 15. From a point C as a centre, describe a circle AB equal to the large ...
How To Describe A Cone Or Frustum- Fig. 16. First draw a side elevation of the desired vessel, DE, then from A as a centre describe the arcs CDC and GEG: after finding the diam-eter of the top ...
How To Describe A Heart- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Fig. 17. Draw an indefinite lino AB; then span the dividers one-fourth the width you wish the ...
Cycloid- Fig. 18. Cycloid, a curve much used in mechanics. It is thus formed: -If the circumference of a circle be rolled on a right line, beginning at any point A, and ...
How To Strike The Side Of A Flaring Vessel- Fig. 19. To find the radius of a circle for striking the side of a flaring vessel having the diameters and depth of side given. Rule. -As the difference ...
How To Find The Centre Of A Circle From A Part Of The Circumference- [Drawn for this work by L. W. Truesdell, Tinman, Owego, N. Y.] Original. Fig. 21. Span the dividers any distance you wish, and place one foot on the ...
How To Construct The Frustum Of A Cone. Form Of Flat Plate By Which To Construct Any Frustum Of A Cone- Fig. 23. Let AJBCD represent the required frustum; continue the lines AD and BC until they meet at E; then from E as centre, with the radius EC, describe the ...
Rule For Striking Out A Cone Or Frustum- Fig. 24. In a conical surface, there may be economy, sometimes, in having the slant height 6 times the radius of base. For a Circle may be wholly cut into ...
How To Find The Contents Of A Pyramid Or Cone- Rule. - Multiply the diameter of the base by itself, and this product by the height, then take one-third of this product for the contents; to obtain gallons, ...
Hipped Roofs, Mill Hoppers, Etc- To find the various Angles and proper Dimensions of Materials whereby to construct any figure ivhose form is the Frustum of a proper or inverted Pyramid, as ...
Contents In Gallons Of The Frustum Of A Cone- Figs. 27, 28, 29. To find the Contents in Gallons of a Vessel, whose diameter is larger at one end than the other, such as a Bowl, Pail, Firkin, Tub, Coffee- ...
Rule To Find The Contents In Gallons Of Any Square Vessel- Rule. - Take the dimensions in inches and decimal parts of an inch, multiply the length, breadth, and height together, and then multiply the product by .004329 ...
Contents In Gallons Of Cylindrical Vessels- Rule. - Take the dimensions, in inches and decimal parts of an inch. Square the diameter, multiply it by the length in inches, and then multiply the product by ...
How To Ascertain The Weights Of Pipes Of Various Metals, And Any Dla.METER Required- Thickness in parts of an inch. Wrought iron. Copper. Lead. 1-32 .326 11½ lbs. plate .38 2 lbs. lead 483 1-16 .653 23½ .76 . 4 967 3-32 .976 35 114 5½ 1.45 1-8 ...
Tin Plates- Size, Length, Breadth, and Weight. Brand Maek. No. of Sheets in Box. Length and Breadth. Weight per Box. Inches. Inches. Cwt. qr lbs. 1 c 225 14 by 10 1 0 0 ...
Oil Canisters, (From 2½ To 125 Galls.) With The Quantity And Quality Of Tin Required For Custom Work- Galls. Quantity and Quality. 2½ 2 Plates , 1X in body. 3½ 2 cc S DX 5½ 2 CC DX cc 8 4 IX 10 3½ cc DX 15 4 DX Galls. Quantity and Qua lity. 33 13½ Plates, IX in ...
Weight Of Water- 1 cubic inch....... is equal to .03617 pounds. 12 cubic inches....... is equal to .434 pounds. 1 cubic foot....... is equal to 62.5 pounds. 1 cubicfoot.......
Decimal Equivalents To The Fractional Parts Of A Gallon, Or An Inch- [The Inch, or Gallon, being divided into 32 parts.] [In multiplying decimals it is usual to drop all but the two or three first figures.] Decimals. Gallon. or ...
A Table Containing The Diameters, Circumferences, And Areas of Circles, And The Content Of Each In Gallons At 1 Foot In Depth- Utility Of The Table. Examples 1. Required the circumference of a circle, the diameter being five inches ? In the column of circumferences opposite the given ...
Capacity Of Cans One Inch Deep- Utility Of The Table Required the contents of a vessel, diameter 6 7-10ths inches, depth 10 inches ? By the table a vessel 1 inch deep and 6 and 7-10ths inches ...
Receipts For The Use of Japanners, Varnishers, Builders And Mechanics, And For Other Useful And Important Purposes In The Practical Arts. Practical Receipts- [The following Receipts are selected from Ure's Dictionary, Cooley's Cyclopedia, Muspratt's Chemistry, and other valuable sources.]
Japanning And Varnishing- Japanning is the art of covering todies by grounds of opaque colors in varnish, which may be afterwards decorated by printing or gilding, or left in a plain ...
White Japan Grounds- To form a hard, perfect white ground is no easy matter, as the substances which are generally used to make the japan hard, have a tendency, by a number of ...
Gum Copal- Copal varnish is one of the very finest varnishes for japanning purposes. It can be dissolved by linseed oil, rendered dry by adding some quicklime at a heat ...
Varnishes Or Japans- Black Grounds Black grounds for japans may be made by mixing ivory black with shellac varnish; or for coarse work, lamp black and the top coating of common ...
Japan Finishing- The finishing part of japanning lies in laying on and polishing the outer coats of varnish, which is accessary in all painted or simply ground colored japan ...
Miscellaneous Varnishes- Different substances are employed for making varnish, the object being to produce a liquid easily applied to the surface of cloth, paper or metal, which, when ...
Resins Employed In The Manufacture Of Varnishes- The following are the chief Resins employed in the manufacture of Varnishes. Amber This resin is most distinguished for durability. It is usually of some shade ...
Spirit Varnishes- These varnishes may be readily colored-red, by dragon's blood; yellow, by gamboge. If a colored varnish is required, clearly no account need be taken of the ...
Essence Varnishes- They do not differ essentially in their manufacture from spirit varnishes. The polish produced by them is more durable, although they take a longer time to dry.
Oil Varnishes- The most durable and lustrous of varnishes are composed of a mixture of resin, oil, and spirit of turpentine. The oils most frequently employed are linseed and ...
Lacker- This is used for wood or brass work, and is also a varnish. For brass, the proportions are half a pound of pale shell-lac to one gallon of spirit of wine. It ...
Copal Varnishes- 1. Copal Varnishes 1. Oil of turpentine one pint, set the bottle in a water bath, and add in small portions at a time, three ounces of powdered copal that has ...
White Hard Spirit Varnishes- 1. Gum sandarach five pounds, camphor one ounce, rectified spirit (65 over proof) two gallons, washed and dried coarsely-pounded glass two pounds; proceed as ...
White Varnish- 1. Tender copal seven and one-half ounces, camphor one ounce, alcohol of 95 per cent, one quart; dissolve, then add mastic two ounces, Venice turpentine one ...
Soft Brilliant Varnish- Sandarach six ounces, elemi (genuine) four ounces, anime one ounce, camphor one-half ounce, rectified spirit one quart; as before. The above spirit varnishes ...
Brown Hard Spirit Varnishes- 1. Sandarach four ounces, pale seed-lac two ounces, elemi (true) one ounce, alcohol one quart; digest with agitation till dissolved, then add Venice turpentine ...
How To Prepare A Varnish For Coating Metals- Digest one part of bruised copal in two parts of absolute alcohol; but as this varnish dries too quickly it is preferable to take one part of copal, one part ...
How To Varnish Articles Of Iron And Steel- Dissolve 10 parts of clear grains of mastic, 5 parts of camphor, 15 parts of sandarach, and 5 of elemi, in a sufficient quantity of alcohol, and apply this ...
Varnish For Iron Work- Dissolve, in about two lbs. of tar oil, half a pound of asphaltum, and a like quantity of pounded resin, mix hot in an iron kettle, care being taken to prevent ...
Black Varnish For Iron Work- Asphaltum forty-eight pounds, fuse, add boiled oil ten gallons, red lead and litharge of each seven pounds, dried and powdered white copperas three pounds, ...
Bronze Varnish For Statuary- Cut best hard soap fifty parts, into fine shavings, dissolve in boiling water two parts, to which add the solution of blue vitriol fifteen parts, in pure water ...
Amber Varnishes- 1. Amber one pound, pale boiled oil ten ounces, turpentine one pint. Render the amber, placed in an iron pot, semiliquid by heat; then add the oil, mix, remove ...
Black Varnish- Heat to boiling linseed oil varnish ten parts, with burnt umber two parts ,and powdered asphaltum one part, and when cooled dilute with spirits of turpentine ...
Varnishes For Furniture- The simplest, and perhaps the best, is the solution of shellac only, but many add gums sandarach, mastic, copal, arabic,benjamin, etc, from the idea that they ...
Etching Varnishes- 1. White wax, two ounces; black and Burgundy pitch, of each one-half ounce; melt together, add by degrees powdered asphaltum two ounces, and boil till a drop ...
Milk Of Wax- Milk of wax is a valuable varnish, which may be prepared as follows:-Melt in a porcelain capsule a certain quantity of white wax, and add to it, while in ...
Crystal Varnishes- 1. Genuine pale Canada balsam and rectified oil of turpentine, equal parts; mix, place the bottle in warm water, agitate well, set it aside, in a moderately ...
Italian Varnishes- 1. Boil Scio turpentine till brittle, powder, and dissolve in oil of turpentine. 2. Canada balsam and clear white resin, of each six ounces, oil of turpentine ...
Water Varnish For Oil-Paintings- Boil bitter-apple, freed from the seeds and cut five parts, with rainwater fifty parts, down to one-half. Strain and dissolve in the liquor gum arabic eight ...
Varnish For Paper-Hangings- Sandarach, four parts, mastic, seed-lac, white turpentine, of each two parts, gum elemi one part, alcohol twenty-eight parts. Digest with frequent shaking, and ...
Book-Binders' Varnish- Shellac eight parts, gum benzoin three parts, gum mastic two parts, bruise, and digest in alcohol forty-eight parts, oil of lavender one-half part. Or, digest ...
How To Varnish Cardwork- Before varnishing cardwork, it must receive two or three coats of size, to prevent the absorption of the varnish, and any injury to the design. The size may be ...
Size, Or Varnish, For Printers, Etc- Best pale glue and white curd soap, of each 4 ounces; hot water 3 pints; dissolve, then add powdered alum 2 ounces. Used to size prints and pictures before ...
Varnish For Brick Walls- A varnish made with one pound of sulphur boiled for half an hour in an iron vessel is a perfect protection from damp to brick walls. It should be applied with ...
Mastic Varnishes- 1. {Fine.) Very pale and picked gum mastic five pounds, glass pounded as small as barley, and well washed and dried two and one-half pounds, rectified ...
India-Rubber Varnishes- 1. Cut up one pound of India rubber into small pieces and diffuse in half a pound of sulphuric ether, which is done by digesting in a glass flask on a sand ...
Black Varnish For Harness- Digest shellac twelve parts, white turpentine five parts, gum sandarach two parts, lampblack one part, with spirits of turpentine four parts, alcohol ninety- ...
Boiled Oil Or Linseed-Oil Varnish- Boil linseed oil sixty parts, with litharge two parts, and white vitriol one part, each finely powdered, until all water is evaporated. Then set by. Or, rub up ...
Dammar Varnish- Gum dammar ten parts, gum sandarach five parts, gum mastic one part, digest at a low heat, occasionally shaking, with spirits of turpentine twenty parts.
Common Varnish- Digest shellac one part, with alcohol seven or eight parts.
Waterproof Varnishes- Take one pound of flowers of sulphur and one gallon of linseed oil, and boil them together until they are thoroughly combined. This forms a good varnish for ...
Varnishes For Balloons, Gas Bags, Etc- 1. India rubber in shavings one ounce; mineral naphtha two lbs.; digest at a gentle heat in a close vessel till dissolved, and strain. 2. Digest one pound of ...
Gold Varnish- Digest shellac sixteen parts, gum sandarach, mastic, of each three parts, crocus one part, gum gamboge two parts, all bruised, with alcohol one hundred forty- ...
Wainscot Varnish For House Painting And Japanning- Anime eight pouuds; clarified linseed oil three gallons; litharge one-fourth pound; acetate of lead one-half pound; sulphate of copper one-fourth pound. All ...
Lackers- Gold Lacker Put into a clean four gallon tin, one pound of ground turmeric, one and a half ounces of gamboge, three and a half pounds of powdered gum sandarach, ...
Armenian Or Diamond Cement- This article, so much esteemed for uniting pieces of broken glass, for repairing precious stones, and for cementing them to watch cases and other ornaments, is ...
Iron-Rust Cement- The iron-rust cement is made of from fifty to one hundred parts of iron borings, pounded and sifted, mixed with one part of sal-ammoniac, and when it is to be ...
Miscellaneous Cements- Cements For Mending Earthern And Glass Ware 1. Heat the article to be mended, a little above boiling water heat, then apply a thin coating of gum shellac, on ...
Cement For Terraces, Floors, Roofs, Reservoirs, Etc- In certain localities where a limestone impregnated with bitumen occurs, it is dried, ground, sifted, and then mixed with about its own weight of melted pitch, ...
Builders' Cements- Mastic Cement For Covering The Fronts Of Houses Fifty parts, by measure, of clean dry sand, fifty of limestone (not burned) reduced to grains like sand, or ...
Hamelein's Cement- This cement consists of earthy and other substances insoluble in water, or nearly so; and these may be either those which are in their natural state, or have ...
Plaster In Imitation Of Marble - Scagliola- This species of work is exquisitely beautiful when done with taste and judgment, and is so like marble to the touch, as well as appearance, that it is scarcely ...
Stucco and Mastic- Maltiia, Or Greek Mastic This is made by mixing lime and sand in the manner of mortar, and making it into a proper consistency with milk or size, instead of ...
Composition- This is frequently used, instead of plaster of Paris, for the ornamental parts of buildings, as it is more durable, and becomes in time as hard as stone itself.
Foundations Of Buildings- The nature and condition of the soil upon which houses are to be built should receive far more attention than is usually bestowed upon such subjects. A soil ...
Concrete Floors- The lower floors of all the cellars of houses should be composed of a bed of concrete about three inches thick. This would tend to render them dry, and more ...
Fire-Proof Composition To Resist Fire For Five Hours- Dissolve, in cold water, as much pearlash as it is capable of holding in solution, and wash or daub with it all the boards, wainscoting, timber, etc. Then ...
Miscellaneous Receipts. How To Polish Wainscot And Mahogany- A very good polish for wainscot may be made in the following manner: Take as much beeswax as required, and, placing it in a glazed earthen pan, add as much ...
Imitation Of Mahogany- Plane the surface smooth, and rub with a solution of nitrous acid. Then apply with a soft brush one ounce of dragon's blood, dissolved in about a pint of ...
Furniture Varnish- White wax six ounces, oil of turpentine one pint; dissolve by a gentle heat. Used to polish wood by friction.
How To Make Glass Paper- Take any quantity of broken glass (that with a greenish hue is the best), and pound it in an iron mortar. Then take severel sheets of paper, and cover them ...
How To Make Stone Paper- As, in cleaning wood-work, particularly deal and other soft woods, one process is sometimes found to answer better than another, we may describe the manner of ...
Whitewash- The best method of making a whitewash for outside exposure is to slack half a bushel of lime in a barrel, add one pound of common salt, half a pound of the ...
Paint For Coating Wire Work- Boil good linseed oil with as much litharge as will make it of the consistency to be laid on with the brush; add lampblack at the rate of one part to every ten, ...
How To Bleach Sponge- Soak it well in dilute muriatic acid for twelve hours. Wash well with water, to remove the lime, then immerse it in a solution of hyposulphite of soda, to ...
Lac Varnish For Vines- Grape vines may be pruned at any period without danger from loss of bleeding, by simply covering the cut parts with varnish made by dissolving stick-lac in ...
Razor Paste- 1. Levigated oxide of tin (prepared putty powder) 1 oz.; powdered oxalic acid 1-4 oz.; powdered gum 20 grs.; make it into a stiff paste with water, and evenly ...
Leather Varnish- Durable leather varnish is composed of boiled linseed oil, in which a drier, such as litharge, has been boiled. It is colored with lampblack. This varnish is ...
How To Keep Tires Tight On Wheels- Before putting on the tires fill the felloes with linseed oil, which is done by beating the oil in a trough to a boiling heat, and keeping the wheel, with a ...
Cutting Glass- To cut bottles, shades, or other glass vessels neatly, heat a ro l of iron to redness, and having filled your vessel the exact height you wish it to be cut, ...
Prepared Liquid Glue- Take of best white glue 16 ounces; white lead, dry, 4 ounces; rain water 2 pints; alcohol 4 ounces. With constant stirring dissolve the glue and lead in the ...
Liquid Glues- Dissolve 33 parts of best (Buffalo) glue on the steam bath in a porcelain vessel, in 36 parts of water. Then add gradually, stirring constantly, 3 parts of ...
Marine Glue- Dissolve 4 parts of India rubber in 34 parts of coal tar naphtha- aiding the solution with heat and agitation, add to it G4 parts of powdered shellac, which ...
An Excellent Paste For Envelopes- Mix in equal quantities gum-arabic (substitute dextrine) and water in a phial, place it near a stove, or on a furnace register, and stir or shake it well, ...
Dextrine, Or British Gum- Dry potato-starch heated from 300 to 600 until it becomes brown, soluble in cold water, and ceases to turn blue with iodine. Used by calico printers and others, ...
Gum Mucilage- A little oil of cloves poured into a bottle containing gum mucilage prevents the latter from becoming sour and putrid; this essential oil possesses great ...
Flour Paste- Too numerous to mention are the little conveniences of having a little flour paste always at hand, as those made of any of the gums impart a glaze to printed ...
Sealing-Wax For Fruit-Cans- Beeswax, ½ oz.; English Vermillion, 1 ½ ozs.; gum shellac, 2 ½ ozs.; rosin, 8 ozs. Take some cheap iron vessel that you can always keep for the purpose, and ...
Fusible Metal- 1. Bismuth 8 parts; lead 5 parts; tin 3 parts; melt together, Melts below 212 degrees Fahr. 2. Bismuth 2 parts; lead 5 parts; tin 3 parts. Melts in boiling ...
Metallic Cement- M. Gireshiem states that an alloy of copper and mercury, prepared as follows, is capable of attaching itself firmly to the surfaces of metal, glass, and ...
Artificial Gold- This is a new metallic alloy which is now very extensively used in Prance as a substitute for gold. Pure copper 100 parts, zinc, or preferably tin 17 parts, ...
Or-Molu- The or-molu of the brass founder, popularly known as an imitation of red gold, is extensively used by the French workmen in metals. It is generally found in ...
Blanched Copper- Fuse 8 ounces of copper and ½ ounce of neutral arsenical salt, with a flux made of calcined borax, charcoal dust and powdered glass.
Browning Gun Barrels- The tincture of iodine diluted with one-half its bulk of water, is a superior liquid for browning gun barrels.
Silvering Powder For Coating Copper- Nitrate of silver 30 grains, common salt 30 grains, cream of tar-ar 3½ drachms; mix, moisten with water, and apply.
Alloy For Journal Boxes- The best alloy for journal boxes is composed of copper, 24 lbs.; tin, 24 lbs.; and antimony, 8 lbs. Melt the copper first, then add the tin, and lastly the ...
Alloy For Bells Of Clocks- The bells of the pendules, or ornamental clocks, made in Paris, are composed of copper 72.00, tin 2G.56, iron 1.44, in 100 parts.
An Alloy For Tools- An alloy of 1000 parts of copper and 14 of tin is said to furnish tools, which hardened and sharpened in the manner of the ancients, afford an edge nearly ...
Alloy For Cymbals And Gongs- An alloy for cymbals and gongs is made of 100 parts of copper 'with about 25 of tin. To give this compound the sonorous property in the highest degree, the ...
Solder For Steel Joints- Silver 10 pennyweights, copper 1 pennyweight, brass 2 pennyweights. Melt under a coat of charcoal dust.
Soft Gold Solder- Is composed of four parts gold, one of silver, and one of copper. It can be made softer by adding brass, but the solder becomes more liable to oxidize.
Files- Allow dull files to lay in diluted sulphuric acid until they are bit deep enough.
How To Prevent Rusting- Boiled linseed oil will keep polished tools from rusting if it is allowed to dry on them. Common sperm oil will prevent them from rusting for a short period. A ...
Anti-Attrition, And A Xle-Grease- One part of fine black lead, ground perfectly smooth, with four parts of lard.
How To Galvanize- Start with a solution of nitro-muriate of gold (gold dissolved in a mixture of aquafortis and muriatic acid) and add to a gill of it a pint of ether or alcohol, ...
Rare And Valuable Compositions- Receipts for the use of Mechanists, Iron and Brass Founders, Tinmen, Coppersmiths, Turners, Dentists, Finishers of Brass, Britannia, and German Silver, and for ...
Gold, Silver & Copper Solders, & Dipping Acids. 93- No. 47. Yellow Solder, for Brass or Copper. - (Stronger than the last.) - Copper, 32 lbs.; Zinc, 29 lbs.; Tin, 1 lb. No. 48. Solder,/or Copper. - Copper, 10 ...
Gold, Silver & Copper Solders, & Dipping Acids. 93. Continued- No. 79. Brown Bronze Dip. - Iron Scales, 1 lb.; Arsenic, 1 02. Muriatic Acid, 1 lb.;Zinc, (solid,) 1 oz. Let the Zinc be kept in only while it is in use. No.
Table Of Alloys- Alloys having a density greater than the Mean of their Constituents. Gold and zinc. Silver & antimony. Gold and tin. Copper and zinc. Gold and bismuth. Copper ...
Alloys For Bronze- Professor Hoffman, of the Prussian artillery, has made experiments with the view of obtaining a good statuary bronze, and recommends the alloys ranging between ...
Valuable Alloys- The Paris Scientific Review has published, for the benefit of the industrious workers in metals, the best receipts for composing all the various factitious ...
Mechanical Drawing And Instruments Used In Drawing. Instruments Used In Drawing- To facilitate the construction of geometrical figures, we add a short description of a few useful instruments which do not belong to the common pocket-case.
The Sector- This very useful instrument consists of two equal rulers each six inches long, joined together by a brass folding joint. These rulers are generally made of ...
Use Of The Line Of Lines- This line, as was before observed, is marked L, and its uses are, To Divide a line into any number of equal parts: Take the length of the line by the compasses, ...
Use Of The Line Of Chords- By means of the sector, we may dispense with the protractor. Thus, to lay down an angle of any number of degrees: - take the radius of the circle on the ...
Mechanical Drawing And Perspective- A FLAT rectangular board is first to be provided, of any convenient size, as from 18 to 30 inches, and from 16 to 24 inches broad. It may be made of fir, plane ...
Practical Geometry- Geometry is the science which investigates and demonstrates the properties of lines on surfaces and solids: hence, Practical Geometry is the method of applying ...
Definition Of Arithmetical Signs Used In The Work- = When we wish to state that one quantity or number, is equal to another quantity or number, the sign of equality = is employed. Thus 3 added to 2 = 5, or 3 ...
Definition Of Arithmetical Signs Used In The Work. Part 2- Problem VI. To divide a given Line into any Number of Parts, which Parts shall de in the same Proportion to each other as the Parts of some other given Line, ...
Definition Of Arithmetical Signs Used In The Work. Part 3- Problem X. To describe an Ellipse by Means of a Carpenter's Square, or a piece of notched Lath. Having drawn two lines to represent the diameters of the ...
Epitome Of Mensuration And Instrumental Arithmetic. Epitome Of Mensuration Of The Circle, Cylinder, Sphere, &C- 1. The circle contains a greater area than any other plane figure bounded by an equal perimeter or outline. 2. The areas of circles are to each other as the ...
Of The Square, Rectangle, Cube, &C- 1. The side of a square equals the square root of us area. 2. The area of a square equals the square of one of its sides. 3. The diagonal of a square equals ...
Surfaces And Solidities Of The Regular Bodies, Each Of Whose Boundary Lines Is 1- No. of sides. Names. Surfaces. Solids. 4 Tetrahedron 1.7321 0.1179 6 Hexahedron 6. 1. 8 Octahedron 3.4641 0.4714 12 Dodecahedron 20.6458 7.6631 20 Icosahedron ...
Of Triangles, Polygons, &C- 1. The complement of an angle is its defect from a right angle. 2. The supplement of an angle is its defect from two right angles. 3. The sine, tangent, and ...
Table Of The Areas Of Regular Polygons Each Of Whose Sides Is Unity- Name of Polygon. No of Sides Apothem or Perpend'lar. Area when Side is Unity Interior Angle. Central Angle. Triangle 3 0.2887 0.4330 60 0' 120 0' Square 4 0.5 ...
Of Ellipses, Cones, Frustums, &C- 1. The square root of half the sum of the squares of the two diameters of an ellipse multiplied by 3.1416 equals its circumference. 2. The product of the two ...
Instrumental Arithmetic Or Utility Of The Slide Rule- The slide rule is an instrument by which the greater portion of operations in arithmetic and mensuration may be advantageously performed, provided the lines of ...
Numeration- Numeration teaches us to estimate or properly value the numbers and divisions on the rule in an arithmetical form. Their values are all entirely governed by ...
Proportion, Or Rule Of Three Direct- Rule. - Set the first term on B to the second on a; and against the third upon B is the fourth upon a. 1. If 4 yards of cloth cost 38 cents, what will 30 yards ...
Rule Of Three Inverse- Rule. - Invert the slide, and the operation is the same as direct proportion. 1. I know that six men are capable of performing a certain given portion of work ...
Square And Cube Roots Of Numbers- On the engineer's rule, when the lines c and d are equal at both ends, c is a table of squares, and D a table of roots, as Squares 1 4 9 16 25 36 49 64 81 on c.
Mensuration Of Surface- 1. Squares, Rectangles, etc. Rule. - When The Length Is Given In Feet And The Breadth In Inches, Set The Breadth On B To 12 On A; And Against The Length On A ...
Table Of Gauge-Points For The Engineer's Rule- Names. F, F, F. F, I, I. I,I,I. F,I. I,I. F. I. Cubic inches 578 83 1728 106 1273 105 121 Cubic feet 1 144 1 1833 22 121 33 Imp. Gallons 163 231 277 294 353 ...
For The Common Slide Rule- Names. F, F, F. F, I, I. I,I,I. F,I. i,i. F. I Cubic inches 36 518 624 660 799 625 113 Cubic feet 625 9 108 114 138 119 206 Water in lbs. 10 144 174 184 22 !
Mensuration Of Solidity And Capacity- General Rule. - Set the length upon B to the gauge point upon a; and against the side of the square, or diameter on D, are the cubic contents, or weight in lbs.
Power Of Steam Engines- Condensing Engines. - Rule. Set 3.5 on c to 10 on D; then D is a line of diameters for cylinders, and c the corresponding number of horses' power; thus, H. Pr.
Of Engine Boilers- How many superficial feet arc contained in a boiler 23 feet in length and 5 ½ feet in width ? Set 1 on b to 23 on A; and against 5.5 upon b is 126.5 square ...
Artificers' Rules And Tables- For Computing the Work of Bricklayers, Well Diggers, Masons, Carpenters and Joiners, Slaters, Plasterers, Painters, Glaziers, Pavers, and Plumbers.
Measurement Of Bricklayers' Work- Brickwork is estimated at the rate of a number of bricks in thickness, estimating a brick at 4 inches thick. The dimensions of a building are usually taken by ...
Measurement Of Wells And Cisterns- There are two methods of estimating the value of excavating. It may be done by allowing so much a day for every man's work, or so much per cubic foot, or yard, ...
Measurement Of Masons' Work- To masonry belong all sorts of stone-work; and the measure made use of is a foot, either superficial or solid. Walls, columns, blocks of stone or marble, etc., ...
Measurement Of Carpenters' And Joiners' Work- To this branch belongs all the wood work of a house, such as flooring, partitioning, roofing, etc. Large and plain arlicles are usually measured by the square ...
Sash Table.- Size And Prices Of Sashes, Shutters, Etc. Cincinnati, Ohio- 6ize of Lights. Thick- Size of Sash Price of Sash per Light. Trice of Venition Shutters per pair. Price of Window Frames. for 12 light Windows. Width. Length.
Measurement Of Slaters' Work- In these articles, the content of a roof is found by multiplying the length of the ridge by the girth over from eaves, to eaves; making allowance in this girth ...
Measurement Of Plasterers' Work- Plasterers' work is of two kinds, namely, ceiling-which is plastering upon laths - and rendering, which is plastering upon walls, which are measured separately.
Measurement Of Pavers' Work- Pavers' work is done by the square yard. And the content is found by multiplying the length by the breadth. Grading for paving is charged by the day.
Measurement Of Painters' Work- Painters' work is computed in square yards. Every part is measured where the color lies; the measuring line is forced into all the mouldings and corners. 138 ...
Measurement Of Glaziers' Work- Glaziers' work is sometimes measured by the sq. ft., sometimes by the piece, oral so much per light; except where the glass is set in metallic frames, when the ...
Table Showing The Size And Number Of Lights To The 100 Square Feet- Size. Lights. 6 by 8 300 7 by 9 229 8 by 10 180 8 by 11 164 8 by 12 150 9 by 10 160 9 by 11 146 9 by 12 133 9 by 13 123 9 by 14 114 9 by 16 100 10 by 10 144 10 ...
Patent Improved Lead Pipe, Sizes And Weight Per Foot- Calibre. Weight per foot. Inches. lbs. ozs. 3/8 6 8 10 12 1 0 1 8 ½ 8 10 12 14 1 0 Calibre Weight per foot. Inches. lbs. ozs. ½ 1 4 1 8 2 0 3 0 5/8 13 1 0 1 8 ...
Boston Lead Pipe, Sizes And Weight Per Foot- 1-2 Inch. 5-8 Inch. 3-4 Inch. 1 Inch. 11-4 Inch. 11-2 Inch. 13-4 Inch. 2 Inch. lbs. oz. lbs. oz. lbs. oz. lbs. oz. lbs. oz. lbs. oz. Zos. oz. lbs. oz. 10 2 12 ...
Comparative Strength And Weight Of Ropes And Chains- Circum. of Rope in inches. Weight per Fathom in lbs. Diameter of Chain in inches. Weight per Fathom in lbs. Proof Strength in tons and cwt. 3½ 2¾ 5/16 5½ 1 5½ ...
Strength Of Materials Of Construction- [From Templeton's Workshop Companion.] Materials of construction are liable to four different kinds of strain; viz., stretching, crushing, transverse action, ...
Resistance To Lateral Pressure, Or Transverse Action- The strength of a square or rectangular beam to resist lateral pressure, octing in a perpendicular direction to its Length, is as the breadth and square of the ...
Resistance To Lateral Pressure, Or Transverse Action. Continued- And these applications of principle not only tend to diminish deflection, but the required purpose is also more effectively attained, and that by lighter ...
Resistance Of Bodies To Flexure By Vertical Pressure- When a piece of timber is employed as a column or support, its tendency to yielding by compression is different according to the proportion between its length ...
Elasticity Of Torsion, Or Resistance Of Bodies To Twisting- The angle of flexure by torsion is as the length and extensibility of the body directly and inversely as the diameter; hence, the length of a bar or shaft ...
Strength Of Materials- [From Grier's Mechanic's Calculator, etc.] Bar of Iron.-The average breaking weight of a Bar of Wrought Iron, 1 inch square, is 25 tons; its elasticity is ...
Models Proportioned To Machines- The relation of models to machines, as to strength, deserves the particu lar attention of the mechanic. A model may be perfectly proportioned in all its parts ...
Strength Of Materials. #2- [From Adcock's Engineer.'] List of metals, arranged according to their strength.-Steel, wrought-iron, cast-iron, platinum, silver, copper, brass, gold, tin, ...
Relative Strength Of Cast And Malleable Iron- It has been found, in the course of the experiment!) made by Mr. Hodg-kinson and Mr. Fairbairn, that the average strain that cast iron will bear in the way of ...
Strength Of Beams- [From Lowndes' Engineer's Hand-book,-Liverpool, I860.] Solid, Rectangular, And Round: To Find Their Strength Square and rectangular. (Depth ins.)2 X Thickness ...
Cast Iron With Feathers Or Flanges: To Find Their Strength- Sec. area, bottom flan ere ins. X depth ins. / Length in feet. - X 2 = Breaking weight, tons. If the metal exceeds 1 inch in thickness deduct l-8th. If above 2 ...
Wrought Iron Beams- Girders.-The sketch shows a very strong form for this description of firder, when rolled solid. The top ange being condensed and square is in a good form to ...
Solid Columns- Fail by crushing with length under.......................... 5 diameters Principally by crushing from........................... 5 to 15 Partly by crushing, ...
Hollow Columns- Hollow columns fail principally by crushing, provided the length does not exceed 25 diameters; indeed, the length does not appear to affect the strength much ...
Crane- The strains on the principal parts can be ascertained with great ease in the following manner - the strength being proportioned accordingly. To find the strain ...
Cold Water Pump- Weight suspended, tons X Projection, feet/Height of post above ground= Strain on top of post, tons. The post can then be calculated as a beam, twice as long as ...
Velocity Of Fans- The best Velocity of Circumference for different Densities. Velocity of Circumference. Feet per Second. Density of Blast. Oz. per inch. 170 3 180 4 195 5 205 6 ...
Friction. The Friction Of Metal On Metal, Without Unguents- From Mr. Rennie's Experiments May be taken at 1-6 of the weight up to 40 lbs. per sq. in. 1-5 100 Brass on cast iron 1-4 800 Wrought on cast iron 1-3 500 With ...
Centrifugal Force- (Revolutions per min in.)2 X dia. in ft. X weight / 5870 = Centrifugal force in terms of weight.
Pedestal - Bracket- PEDESTAL. Good proportions. Thickness of cover .4 of diameter of bearing. of sole plate .3 Diameter of bolts .25 if 2. 18 if there are 4. Distance between ...
Bracket- Solid. Metal round brass equal to 1-2 diameter of bearing. General thickness web, etc. equal to 1-4 diameter of bearing. With feathers. Width at lightest equal ...
Tempering- The article after being completed, is hardened by being heated gradually to a bright red, and then plunged into cold water; it is then tempered by being warmed ...
Case Hardening- Put the articles requiring to be hardened, after being finished but not polished, into an iron box in layers with animal carbon, that is, horns, hoofs, skins, ...
Heat. Effects Of Heat At Certain Temperatures. - Grier- Tin and Bismuth, equal parts, melt at 2S3 degrees, Fahrenheit; tin melts at 442; polished steel acquires straw color at 460; bismuth melts at 476; sulphur ...
Soldering Joints- The solder for joints requires to be of some metal more fusible than that of the substances to be joined. For Copper, usual solder 6 to 8 parts brass to 1 of ...
Boring And Turning- The best speed for boring cast iron is about 7¾ feet per minute. For drilling about 10 or 11 feet per minute is a good speed for the circumference of the tool.
Brass. Compositions Of Brass- Copper. Tin. Zinc. Watch-makers brass....................... 1 part - 2 parts German brass......................... 1 - 1 Yellow brass................... 2 __ ...
Brass Casting- As it is often useful to engineers, especially abroad, to be able to cast brass, a slight description of the process may not be out of place. The ordinary ...
Rope. To Find The Breaking Wright Of An Ordinary Tarred Hemp Rope- (Circumference, Ins.)2 ÷ 5 = Breaking Weight, Tons A rope should not be loaded with more than 1-3 its breaking weight. To find Weight of Rope or Tarred Cordage.
Weight. To Find The Weight Of Any Casting- Width in ¼ ins. X Thickness in 1/8 ins., or vice versa, ÷ 10 X Length, ft. = Weight, lbs. cast iron. For instance; to find the weight of a casting 3¼ ins. X 1 ...
Weight Of Boiler Plates- Thickness, ins. 1/16 1/8 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 Weight, lbs. per sq. ft. 2.5 5 7.5 10 12.5 15 17.5 20 25 30 35 40 For cast iron deduct l-20th.
Continuous Circular Motion- In mechanics, circular motion is transmitted by means of wheels, drums, or pulleys; and accordingly as the driving and driven are of equal or unequal diameters, ...
Continuous Circular Motion. Continued- Example.- Suppose a screw is required to he cut containing 25 threads in an inch, and the leading screw, as before, having two threads in an inch, and that a ...
Wheels And Gudgeons- To find size of Teeth necessary to transmit a given Horse Power. (Tredgold.) Horse power X 240/ Diameter of wheel . ft. X Revs. per min. = Strength of tooth.
Water- To find the quantity of Water that will be discharged through an orifice, or pipe, in the side or bottom of a Vessel. Area of orifice, sq. in. X No.
Mechanical Tables For The Use Of Operative Smiths, Millwrights And Engineers- The following Tables, originally dedicated to 'the National Association of the Forgers of Iron Work,' England, by James Fo-deN, will be found extremely useful ...
Mechanical Tables For The Use Of Operative Smiths, Millwrights And Engineers. Continued- The manner in which the foregoing Table of Circumferences is found is as follows: Taking the diameter at unity, we have by decimal proportion in. in. As l : 8.
Circumferences For Angled Iron Hoops Angle Outside- Diam. Circ. Ft In. Ft. In. 6 1 5½ 4 1 6¼ ½ 1 7 ¾ 1 7¾ 7 1 8½ ¼ 1 9¼ ½ 1 9 7/8 ¾ 1 l0 5/8 8 1 11 3/8 ¼ 2 0 1/8 ½ 2 0 7/8 ½ 2 1 5/8 9 2 2 3/8 ¼ 2 3 ½ 2 3¾ ¾ 2 4½ ...
Number Of Iron Spikes Per 100 Pounds- Manufactured by Philip C. Page, Mass., and Sold by Page, Briggs & Babbitt, Boston. Ship Spikes or Hatch Nails 1-4 in. sq're. Ship Spikes or Hatch Nails 5-16 in.
Burdens Patent Spikes And Horse Shoes- Manufactured at the Troy Iron and Nail Factory, Troy, New York. Boat Spikes. Size in inches. No. in 100 lbs. 3 1750 3½ 1468 4 1257 44 920 5 720 54 630 6 497 64 ...
Coppers. - Dimensions And Weight From 1 To 208 Gallons- Inches lag to brim. Gallons. Weight in pounds. 9¾ 1 1½ 12¼ 2 3 14 3 4½ 15½ 4 6 16½ 5 7½ 17½ 6 9 18½ 7 10½ 19½ 8 12 20¼ 9 13½ 21 10 15 21½ 11 16½ 22 12 18 22½ ...
Copper Tubing. - Weight Of The Usual Thickness- When The Inside Diameter, Is ¼ Of An Inch, 3 Ozs.; 3/8 Do., 5 Ozs.; ½ Do , 6ozs.; 5/8 Do., 8 Ozs.; ¾ Do., 10 Ozs. Per Foot Brass, Copper, Steel And Lead. - ...
Cast Iron- Weight of a Foot in Length of Flat Cast Iron. Width of Iron. Thick, 1-4th inch. Thick, 3-8ths inch Thick, 1-2 inch. Thick, 5-8ths inch. Thick, 3-4ths inch.
Cast Iron, Copper, Brass, And Lead Balls- Weight of Cast Iron, Copper, Brass, and Lead Balls, from 1 inch to 12 inches in Diameter. Diam. Cast Iron. Copper. Brass. Lead. Diam. Cast Iron. Copper. Brass.
Cast Iron. - Weight Of A Foot In Length Of Square And Round- SQUARE. Size. Weight... Size. Weight. Inches Square Pounds. Inches Square. Pounds. ½ .78 4 7/8 74.26 5/8 1.22 5 78.12 ¾ 1.75 5 1/8 82.08 7/8 2.39 5¼ 86.13 1 3.
Steel. - Weight Of A Foot In Length Of Flat- Size. Thick, 1-4 inch- Thick, 3-8ths. Thick, 1-2 inch. Thick, 5-8ths. Inches pounds. pounds. pounds. pounds. 1 .852 1.27 1.70 2.13 1 1/8 .958 1.43 1.91 2.39 1¼ ...
Weights Of Rolled Iron- Per lineal foot, in pounds and decimal parts, of sections of Parallel Angle Taper Angle, Parallel J, Taper J, anil Sash Iron and Rails. Table I.- Parallel ...
Table III - Taper Angle Iron, Of Equal Sides- L'gth of sides AA, in inches. Thickness of edges at b. Thickness of root at c. Weight of 1 lineal foot. in. in. in. 4 ½ 5/8 14.0 8 ½ 5/8 10.375 2¾ 7-16ths 9- ...
Weights Of Parallel And Taper T Iron. Table IV.-Parallel J Iron, Of Unequal Width And Depth- Width of top table a. Total depth B. Uniform thickness top table c Uniform thickness of rib D. Weight of one lineal foot. in. in. in. in. 5 6 ½ ½ 15.75 4½ 3¼ ½ ...
Weight Of Sashes And Rails- Table VII. - Sash Iron. Total depth A. Depth of rebate B. Width at edge c. greatest width D. Weight of one lineal foot. in. in. in. 2 1 No. 9 w. guage 5-8ths 1.
Weight Of A Lineal Foot Of Malleable Rectangular Or Flat Iron- From an Eighth of an Inch to Three Inches Thick. T designates the thickness, B. the breadth. T. B. Weight. in. in lbs. ozs. 1/8 ¼ 0 1.6 3/8 0 2.4 ½ 0 3.3 5/8 0 ...
Weight Of Flat Iron- T. designates the thickness. B. the breadth. T. B. Weight in. in. lbs. ozs. ½ 8½ 14 1.2 8¾ 14 7.8 9 14 14.4 9¼ 15 5.0 9½ 15 11.7 9¾ 16 2.3 10 16 8.9 10¼ 16 15.
Elastic Force Of Steam- Table of the Elastic Force of Steam, and corresponding Temperature of the Water with which it is in Contact. Pressure in pounds per sq. in. Elastic force in ...
Production And Properties Of Steam- When water in a vessel is subjected to the action of fire, it readily imbibes the heat or fluid principle of which the fire is the immediate cause, and sooner ...
Consumption Of Coal- Table For Finding The Consumption Of Coal Per Hourin Steamers Either Paddle Or Screw (The Same Screw Being Used Throughout,) At Any Kate Of Speed, The ...
Evaporative Power Of Coal And Results Of Coking- Under the authority of an Act of the American Congress, approved Sept. 11. 1841, an extensive series of experiments was conducted by Prof. Johnson upon the ...
Power Of Steam- Mr. Tredgold gives the following Table, which will show how the power of the steam as it issues from the boiler, is distributed. IV. A Non-Condensing Engine ...
Rules And Tables For Gauging, Ullaging, Etc. Gauging Of Casks- In taking the dimensions of a Cask it must be carefully observed: 1st, That the bung-hole be in the middle of the cask; 2d, That the bung-stave, and the stave ...
Gauging Of Casks In Imperial (British) Gallons. And Also In United States Gallons- Having ascertained the variety of the Cask, and its interior dimensions, the following Table will facilitate the calculation of its capacity. Table of the ...
How To Ullage, Or Find The Contexts In Gallons Of A Cask Partly Filled- To find the contents of the occupied part of a lying cask in gallons. Rule. - Divide the depth of the liquid, or wet inches, by the bung diameter, and if the ...
Ploughing- Table showing the distance Travelled by a horse in Ploughing an Acre of Land; also, the quantity of Land worked in a Day, at the rate of 16 and 18 miles per ...
Planting- Table showing the number of Plants required for one Acre of Land, from one Foot to Twenty-one Feet distance from Plant to Plant. Feet Distance No. of Hills. 1 ...
Weight Of A Cord Of Wood- Table of the Weight of a Cord of different kinds of Dry Wood, and the comparative value per Cord. A Cord of Hickory, 4469 pounds, - - Carbon - - 100 Maple, - - ...
Charcoal- Oak, Maple, Beech, and Chestnut make the best quality. Be-tween 15 and 17 per cent, of coal can be obtained when the wood is properly burned. A bushel of coal ...
Addition To Tinman's Manual. Tinman's Twelve Pound Bill, Or Bill Of Day's Work Of Plain Tin Ware- No. of Articles for Day's Work. 12 lb. 16 Sixteen quart Large Dish Kettles,....... 84 10 Water Pots,........... 75 18 Twelve quart Pails,....... 67 18 Large ...
1. - Weights Of Iron Wire Per 20 Feet- Manufactured by IcHabod Washburn & Moen, Worcester, Mass. No. 0... 5 lbs. No. 6.. .1 lb. 14 ozs. No. 12... 9 ozs. No. 1... 4 lbs. 2 ozs. No. 7.. 1 lb. 10 ozs.
2. - Weight Of Iron Wire Per Lineal Rod- Nos. Diameter in 1-100 of an Inch. Weight per Lineal Rod. 1 .32 4 Lbs. 2 ozs. 2 .30 3 10 3 .27 2 15 4 .25 2 8 5 .24 2 6 6 .22 1 15 7 .20 1 9 Nos. Diameter in 1- ...