Sheet-material associating – Associating or disassociating – Sheet associating
Patent
1978-08-02
1980-09-09
Burr, Edgar S.
Sheet-material associating
Associating or disassociating
Sheet associating
B65H 39055
Patent
active
042213720
ABSTRACT:
Collating machine comprising a plurality of spaced trays each supporting identical sheets, a conveyor moving under the trays, a feeding device adjacent each tray for pulling out a sheet therefrom and depositing it onto the conveyor and including an electrically actuated clutch, a transmission device adapted to be cyclically engaged with the clutch, a first switch downstream relative to travel of the conveyor from each tray for supplying current to disengage the clutch upstream therefrom in response to a sheet fed from the tray immediately upstream thereof, a second switch upstream from all except the first tray for supplying current to engage the clutch immediately downstream therefrom in response to a sheet fed from the tray immediately upstream therefrom, a common power shaft supplying power to the transmission device, an electrically actuated system clutch for connecting the shaft to the transmission device and conveyor for normal operation of the machine and disconnecting the shaft from the conveyor during malfunction of the machine, electrically actuated brake for stopping the conveyor, and control arrangement including cams and switches for supplying current to engage the clutch of the first feeding device to initiate one or more operational cycles of the machine and to disengage the system clutch and engage the brake upon failure of a sheet to be fed past a first switch downstream from one of the trays to disengage the clutch of its feeding device.
REFERENCES:
patent: 3175821 (1965-03-01), Gibson
patent: 3559982 (1971-02-01), Eppers
patent: 4053149 (1977-10-01), Paulus
Burr Edgar S.
Heinz A.
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