Five hundred and seven mechanical movements (1903)
Brown, Henry T. [from old catalog] · New York, Brown & Seward · leaf 19
the other by the friction or adhesion,and this may be increased by facing the lowerone with india-rubber. 29. Transmission of rotary motion fromone shaft at right angles to another. Thespiral thread of the disk-wheel drives thespur-gear, moving it the distance of onetooth at every revolution. 30.… … Mechanical Movements. 15 31. Worm or endless screw and a worm-wheel. This effects the same result as 29;and as it is more easily constructed, it isoftener used. 32. Friction-wheels. The surfaces ofthese wheels are made rough, so as to biteas much as possible ; one is sometimes facedwith leather,…
Mechanical movements
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