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 309
Fig. 493. Fig. 491. in one vertical line ; the level of the water may befound approximately by opening these gauge cocks,shown in Fig. 495. The level of the water may also be shown by awater glass, illustrated in Fig. 496. Valves at thetop and bottom.allow the steam to be shut off if theglass… … I^ater6pace cie: -^ Top of l/^Joer Tfou/of Tubes ^^To Ashpit Fig. 495. ROGERS DRAWING AND DESIGN. 339 bottom allows the water to be blown out of it. Thebrass fittingrs of the water glass are often screweddirectly into the boiler plates; when this cannot bedone, the water glass may be put on a water…
Mechanical drawing · Machine design
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