Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 196
weight sets thebrake. The connection to hand lever is by a floating lever,whereby the piston is caused to follow the motion of the hand lever.It is plain that this type of brake is always ready to go on, even ifthe steam should fail, and it is thus as reliable as a hand brake. 178 HANDBOOK FOR… … Fig. 7.—Nordberg arrangement of large block brakes. Automatic Brakes One of many constructions of automatic load brakes is shown inFig. 8, by A. D. Williams (Amer. Mack., Aug. 20,1903). In action,the tendency of the load to run down locks the brake,which revolves freely in the hoisting direction.…
Machine design
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