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
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… … Fig. .>t3. The mean effective pressure may also be found bym-easuring the area of the diagram, by means of aplanimeter and dividing it by the length of the dia- 578 ROGERS DRAWING AND DESIGN.
Mechanical drawing · Machine design
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