Apparatus for metering copy material in blueprint machines

Details Apparatus for metering copy material in blueprint machines Apparatus for metering copy material in blueprint machines

1974-09-10

1976-06-15

Abercrombie, Willie G.

Cutting

Tool engages work during dwell of intermittent workfeed

Operation initiated by work-driven detector means to measure...

83241, 83289, 83365, 83369, B26D 534, B26D 500

Patent

active

039629406

ABSTRACT:
Apparatus for controlling cut-off of paper from a web thereof fed through a blue print machine or the like, includes a main shaft driven by the drive structure of such machine, a threaded sleeve is mounted on said main shaft and is resiliently restrained against rotation. A plier-like pair of jaws is received in the threads of said sleeve for displacing said sleeve axially when it is clutched to said main shaft by an electromagnetic clutch. Holes are provided in said sleeve which are detected optically to operate in the generation of a control signal to effect cutting of said web.

REFERENCES:
patent: 3351740 (1967-11-01), Heuer
patent: 3513741 (1970-05-01), Shallenberg
patent: 3797346 (1974-03-01), Kakii et al.

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