Published By

Henry Carey Baird

Industrial Publisher

No. 406 W alnut Street,

Philadelphia

Any of the following Books will be sent by mail, free of postage, at the publication price. Catalogues furnished on application.

American Miller and Millwright's Assistant:

A new and thoroughly revised Edition, with additional Engravings. By William Carter Hughes. In one volume, 12 mo.,.....................................................$1.25

Armengaud, Amoroux, and Johnson,

THE PRACTICAL DRAUGHTSMAN's BOOK OF INDUSTRIAL DESIGN, and Machinist's and Engineer's Drawing Companion; forming a complete course of Mechanical Engineering and Architectural Drawing. From the French of M. Armengaud the elder, Prof, of Design in the Conservatoire of Arts and Industry, Paris, and MM. Armengaud the younger, and Amouroux, Civil Engineers. Rewritten and arranged, with additional matter and plates, selections from and examples of the most useful and generally employed mechanism of the day. By William Johnson, Assoc. Inst. C. E., Editor of "The Practical Mechanic's Journal." Illustrated by fifty folio steel plates and fifty wood-cuts. A new edition, 4to.,...$10.00

Among the contents are: - Linear Drawing, Definitions and Problems, Plate I. Applications, Designs for inlaid Pavements, Ceilings and Balconies, Plate II. Sweeps, Sections and Mouldings, Plate III. Ele mentary Gothic Forms and Rosettes Plate IV. Ovals, Ellipses, Parabolas and Volutes, Plate V. Rules and Practical Data. Study o Projections, Elementary Principles, Plate VI. Of Prisms and other Solids, Plate VII. Rules and Practical Data. On Coloring Sections, with Applications - Conventional Colors, Composition or Mixture of Colors, Plate X. Continuation of the Study of Projections - Use of sections - details of machinery, Plate XI. Simple applications - spindles, shafts, couplings, wooden patterns, Plate XII. Method of constructing a wooden model or pattern of a coupling, Elementary applications-rails and chairs for railways, Plate XIII. Rules and Practical Data -Strength of material, Resistance to compression or crushing force, Tensional Resistance, Resistance to flexure, Resistance to torsion, Friction of surfaces in contact.

The Intersection and Development of Surfaces, with Applications. - The Intersection of Cylinders and Cones, Plate XIV. The Delineation and Development of Helices, Screws and Serpentines, Plate

XV. Application of the helix - the construction of a staircase, Plate

XVI. The Intersection of surfaces - applications to stop-cocks, Plate

XVII. Rules and Practical Data - Steam, Unity of heat, Heating surface, Calculation of the dimensions of boilers, Dimensions of firegrates, Chimneys, Safety-valves.

The Study and Construction of Toothed Gear. - Involute, cycloid, and epicycloid, Plates XVIII. and XIX. Involute, Fig. 1, Plate

XVIII. Cycloid, Fig. 2, Plate XVIII. External epicycloid, described by a circle rolling about a fixed circle inside it, Fig. 3, Plate XIX. Internal epicycloid, Fig. 2, Plate XIX. Delineation of a rack and pinion in gear, Fig. 4, Plate XVIII. Gearing of a worm with a worm-wheel, Figs. 6 and 6, Plate XVIII. Cylindrical or Spur Gearing, Plate

XIX. Practical delineation of a couple of Spur-wheels, Plate XX. The Delineation and Construction of Wooden Patterns for Toothed Wheels, Plate XXI. Rules and Practical Data - Toothed gearing, Angular and circumferential velocity of wheels, Dimensions of gearing, Thickness of the teeth, Pitch of the teeth, Dimensions of the web, Number and dimensions of the arms, wooden patterns.

Continuation of the Study of Toothed Gear. - Design for a pair of bevel-wheels in gear, Plate XXII. Construction of wooden patterns for a pair of bevel-wheels, Plate XXIII. Involute and Helical Teeth, Plate XXIV. Contrivances for obtaining Differential Movements - The delineation of eccentrics and cams, Plate XXV. Rules and Practical Data - Mechanical work of effect, The simple machines, Centre of gravity, On estimating the power of prime movers, Calculation for the brake, The fall of bodies, Momentum, Central forces.

Elementary Principles of Shadows. - Shadows of Prisms, Pyramids and Cylinders, Plate XXVI. Principles of Shading, Plate XXVII. Continuation of the Study of Shadows, Plate XXVIII. Tuscan Order, Plate XXIX. Rules and Practical Data - Pumps, Hydrostatic principles, Forcing pumps, Lifting and forcing pumps, The Hydrostatic press, Hydrostatical calculations and data - discharge of water through different orifices, Gaging of a water-course of uniform section and fall, Velocity of the bottom of water-courses, Calculation of the discharge of water through rectangular orifices of narrow edges, Calculation of the discharge of water through overshot outlets, To determine the width of an overshot outlet, To determine the depth of the outlet, Outlet with a spout or duct.

Application of Shadows to Toothed Gear, Plate XXX. Application of Shadows to Screws, Plate XXXI. Application of Shadows to a Boiler and its Furnace, Plate XXXII. Shading in Black - Shading in Colors, Plate XXXIII.

The Cutting and Shaping of Masonry, Plate XXXIV. Rules and Practical Data - Hydraulic motors, Undershot water wheels, with plane floats and a circular channel, Width, Diameter, Velocity, Number and capacity of the buckets, Useful effect of the water wheel. Overshot water wheels, Water wheels with radial floats, Water wheel With curved buckets. Turbines. Remarks on Machine Tools.

Published By Henry Carey Baird.

The Study of Machinery and Sketching. - Various applications and combinations: The Sketching of Machinery, Plates XXXV. and XXXVI. Drilling Machine; Motive Machines; Water wheels, Construction and setting up of water wheels, Delineation of water wheels, Design for a water wheel, Sketch of a water wheel; Overshot Water Wheels. Water Pumps, Plate XXXVII. Steam Motors; High-pressure expansive steam engine, Plates XXXVIII., XXXIX. and XL. Details of Construction; Movements of the Distribution and Expansion Valves; Rules and Practical Data - Steam engines: Low-pressure condensing engines without expansion valve, Diameter of piston, Velocities, Steam pipes and passages, Air-pump and condenser, Cold-water and feed-pumps, High-pressure expansive engines, Medium pressure condensing and expansive steam engine, Conical pendulum or centrifugal governor.