Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 348
one stroke.^ by the of the stroke in feet, then by the area of the and by the number of strokes per minute and the result by j^,ooo. LXAXN ^^. ^^^, — = Indicated H. P. of engine, 33000 P is the mean pressure; L,A, the area of the piston ; where stroke; ber of strokes per minute. The actual horse… … Fig. oi-Z. To find the mean effective pressure, divide anindicator diagram of the engitie into any numberof equal parts, say lo, then measure the height of each part, half-way between the division lines, asshown by the dotted lines in Fig. 545. Add thelength of all the dotted lines, and divide by…
Mechanical drawing · Machine design
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