The Practical Draughtsman's Book of Industrial Design: Forming a Complete Course of Mechanical, Engineering, and Architectural Drawing |
Common terms and phrases
adjusted applied axis base boiler buckets cast-iron centimètres centre circular circumference column cone conical surface consequently construction corresponding crank cubic curve cylinder describe determined diameter dimensions disc discharge distance divided draw drawn eccentric edge elevation ellipse elliptic curve engine epicycloid equal example feet gear generatrix give given height horizontal plane horizontal projection horse power inches inclined intersection joint kilog latter length lever litres machine manner mètres motion object oblique projections obtained parallel passing perpendicular perspective piece pinion piston pitch circle Plate point of sight portion position pressure prism pulley pump radii radius represented revolutions per minute screw shade shadow cast shaft side sphere spindle spur-wheel square steam stones straight line stroke supposed surface surface of revolution tangent thickness tion tooth transverse Tuscan order upper valve velocity vertical plane vertical projection water-wheel wheel whilst width
Popular passages
Page 196 - But every man who rises above the common level has received two educations : the first from his teachers ; the second, more personal and important, from himself.
Page 10 - The side of a regular hexagon is equal to the radius of the circumscribed circle.
Page 8 - An ACUTE ANGLE is one which is less than a right angle ; as the angle DEF.
Page iii - ... concealed in private hands, were, by reciprocal communications, made generally known ; for there are few operations that are not performed by one or other with some peculiar advantages, which though singly of little importance, would, by conjunction and concurrence, open new inlets to knowledge, and give new powers to diligence ; and Herschel, in our own days has told us that, next to the establishment of scientific institutions, nothing has exercised so powerful an influence on the progress...
Page 65 - ADB, comprising two equal and symmetrical portions on either side of the line, DE, which is equal to the diameter of the moving circle. EXTERNAL EPICYCLOID DESCRIBED BY A CIRCLE ROLLING ABOUT A FIXED CIRCLE INSIDE IT.
Page 91 - These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Page 36 - It is usual to apply a light shade first, subsequently showing the graining with a darker tint, or perhaps with burnt sienna. These points are susceptible of great variation, and very much must be left to the judgment of the artist.
Page 193 - I, is divided into five parts, each of which represents 20 inches, so that a complete revolution of т values 100 inches. The eye-glass, E, assists in reading the divisions and vernier. It is apparent, from the construction of this instrument, that if the tracer be moved forward, it will cause the index to revolve, not simply in proportion to that motion, but in proportion to the motion of the tracer, multiplied by the distance of the edge of the index-wheel, from the apex of the cone ; and that...
Page 89 - What may be termed the amount of a day's work, producible by men and animals, is the product of the force exerted, multiplied into the distance or space passed over, and the time during which the action is sustained. There will, however, in all cases, be a certain proportion of effort...
Page iv - In its compilation, the feeble attraction generally offered to students in elementary form has been carefully considered ; and after every geometrical problem, a practical example of its application has been added, to facilitate its comprehension and increase its value. The work is comprised within nine divisions, appropr*ated to the different branches of Industrial Design.