American School of Correspondence · Chicago, American school of correspondence · leaf 97
eans of a clutch being thrown into contact with the wormgear. An enlarged section, an elevation and a partial plan of thisclutch and worm gear are shown in Fig. 39. On the stud, W, isa sleeve, L^, with a gear on one end whichdiives the evener andfeed rolls and a dog,or driver, L^, keyed tothe other… … Fig. 39. Clutch and Worm Gear. clutch. AVhen the clutch is thrown oat, the worm gear runswithout imparting motion to the evener and feed rolls but whenthe calender head is started, the shipper rod, H^, which is drawnforward by the raising of the drop lever causes tlie clutch toengage with the teeth…
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