Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 145
for the ponch-rami P P. Q tha cam-thait El a pur-wbee! nart ■nd ii.iviir. on one tide tw> projecl • a winch th< 138 JACQUARD PERFORATING MACHINE. … JACQUARD PERFORATING- MACHINE. 139 keyed on the shaft Q. having upon it a spring-catch 38, which takes into the opening between tljections on the wheel U. R ana R letached in Fig. 2425,2425: the dotted lines on R* sent a weight to connterbalance the levers /.-. S a toothed-wheel, k< yed on the…
Mechanical engineering
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