The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 329
gear to give a variable speed to the bevil-whecl shaft A by varying the position of the friction pinionsas regards the disc B. 2521. Variable adjustment for a spiral spring. 2522. Adjustable centre-piece or bearing for a spindle or rod. 2523. Variable radius hand crank, 2524. Variable throw crank… … 324 THE ENGINEERS SKETCH-BOOK. Section 89.—VALVES AND COCKS. (See aho p. 198.) 2527. Slide valve ports, with gradual cut-oflf. 2528. Piston valve in section. See No. 1654. This construction avoids spring rings, which do not run well across the ports, the entirevalve being sprung into the bore.…
Mechanical movements
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