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Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries (1910)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The N. W. Henley publishing company · leaf 27

An illustration from Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries, 1910, leaf 27
19. VARIABLE POWER ANDSPEED with friction cone pulleys andtraversing pulley as applied to a drillingmachine. The transmitting roller ispivoted in a frame that slides on a sidebar and is clamped by a screw at theposition required for the desired speed.See No. 106, ist vol., for a frictionlessform of… … 3 PITCH2 THREADS 20. WORM GEARELEVATOR. Spraguetype. The double wormand gear serves the pur-pose of balancing thethrust of the driving shaftand is also a means ofsafety from breakage ofteeth. The wear on theworms and gear is alsomuch lessened by theirduplication. TRANSMISSION OF POWER. 27 21. CASH…

Mechanical movements

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