Improvements in pneumatic feeding mechanisms for high speed presses, folding machines and the like

摘要

238,572. Heenss, H. Aug. 15, 1924, [Convention date]. Cam mechanism.-In sheet-feeding devices for printing-presses &c., provided with suction nozzles capable of being tilted to an adjustable amount the feed devices are operated by a spring-retracted lever 26 rocked about its pivot by cams 31, 30 on a shaft 32 engaging rollers 35, 33 on the lever. The amount of tilt may be varied by an adjustable roller 40 in co-operation with an additional cam consisting of a laterally projecting segment 37 provided with a swell 38. The roller 40 is carried by a nut 39 moving on a screw 34 coaxial with the roller 35, and may be brought, by rotating the nut 39, more or less into engagement with the cam 38 to va.ry the tilt while the machine is running.