Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 281
1092. CAM-OPERATED SHEARS.-Many modifications of this device are in use. … 1093. IRREGULAR CAM MOTION to valverods. An irregular cam, acting between frictionrollers in a yoke frame. Positive irregular rectili-near motion. An old steam-engine valve gear.
Mechanical movements
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