Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 310
n vibrated they will fall, by gravity, against the outerends of the slots p, which are so located as to hold the rods in a position t<> catch under the two outerjournals >t ang /. In this position, when either of the trap-boards are elevated, one of the journals will be carried upwith it;… … 504 LOOM, CARPET-WEAVING. two of the jacquard-shaft, the levers w and x will act upon the corresponding rods d at every alternatedescending motion of each trap-board. The form of the cams f and s is such that during one rotation of the jacquard-shaft m, they elevateone set of levers to to, to shift…
Mechanical engineering
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