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 308
with fire brick. Water is forced into the boiler through the feedpipe leading to the lower end of the boiler, by theaid of an injector or a pump. To prevent the steamfrom rising above a certain pressure, a safety valveis placed at the top of the boiler. From the highest part of the boiler also, the… … Fig. 493. 388 ROSERS DRAWING AND DESIGN. The pressure of the steam in the boilers is indi-cated by//z^ i/!^?^^ ^azit^^, Figs. 493 and 494, attachedto a pipe which passes through the front head intothe steam space of the boiler. To determine the waterlevel, gauge cocks are placed in the front head…
Mechanical drawing · Machine design
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