A Text book of Mechanical Drawing And Elementary Machine Design
A Text book of Mechanical Drawing And Elementary Machine Design
John S John Simpson Reid
The book A Text book of Mechanical Drawing And Elementary Machine Design was written by author John S John Simpson Reid Here you can read free online of A Text book of Mechanical Drawing And Elementary Machine Design book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Text book of Mechanical Drawing And Elementary Machine Design a good or bad book?
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Scale, full size. In Fig. 219 is shown a blow-off cock which is really a wing-valve, opened and closed by a piston which in turn is op- 2 9 6 DRAWING AND DESIGNING. VALVES, COCKS, AND OIL-CUPS. 2 9 ; 298 DRAWING AND DESIGNING. VALVES, COCKS, AND OIL-CUPS. 299 crated by means of compressed air. The wing-valve Fis held on its seat by the steam-pressure in the boiler. When com- pressed air is introduced into the cylinder C through the pipe P the piston is pushed against the valve, opening it and a...llow* ing the contents of the boiler to blow through the cock into the discharge-pipe D. Exercise 108. Make complete drawings as shown in Fig. 219. Scale, full size. Oil-cups. There are many forms of oil-cups. Figs. 220 DRAWING AND DESIGNING. ow the construction of some of the oil-cups es of the Lehigh Valley Railway. Ne of the simplest forms of oil-cups. The, cast in one piece. When charged, the reser- voir is filled with waste and oil. This cup is used on the link-hanger. Fig. 221 shows another simple form of oil-cup, used to oil the rocker-box and cross-head.
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