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 240
t d. One turn of crank F suffices to swing one idler out of mesh with itsmate and throw the next into action. Hence it is an easy matter for theoperator to change the speed even with the machine in motion, as hehas only to spring the crank out of a notch which serves to lock it fastin the position… … 240 GEARING AND GEAR MOTION, ETC. 626. VARIABLE SPEED GEAR, for automobiles. German type.The gear is of the permanent mesh type, and is adapted to give four changes of speed and reverse mo--^J \\ I ni l/7nrt^°k- tion. The changes are effected noiselessly and entirely withoutshock by means of a…
Mechanical movements
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