Dispenser cabinet for sheet material and transfer mechanism

Details Dispenser cabinet for sheet material and transfer mechanism Dispenser cabinet for sheet material and transfer mechanism

1977-04-15

1979-08-21

Nunberg, Casmir A.

Supports: cabinet structure

For sheet material

312 38, 242 553, 242 5553, 242 58, B65H 1906

Patent

active

041651383

ABSTRACT:
A dispenser for sheet material having stations for primary and reserve rolls of the material is characterized by improved mechanisms for transferring feed of the sheet material from the primary roll to the reserve roll upon complete exhaustion of the primary roll.
In the disclosed embodiments the dispenser is a roll paper towel dispensing cabinet, and a feed mechanism initially receives and delivers paper from the primary roll to the exterior of the cabinet. The transfer mechanism senses the presence of the primary roll web at the feed mechanism and, irrespective of the tension of the web between the feed mechanism and the roll, automatically transfers the beginning of the web of the reserve roll to the feed mechanism only upon movement of the very end of the primary roll web past the feed mechanism.
As a consequence of the transfer mechanism operating only in response to passage of the end of the primary roll web past the feed mechanism, absolutely no paper is wasted by the transfer process, and there can be no "false" transferring of rolls resulting from variations in the tension of the web.

REFERENCES:
patent: 2839345 (1958-06-01), Engel et al.
patent: 3007650 (1961-11-01), Burton
patent: 3606306 (1971-09-01), Brown, Jr. et al.
patent: 3650487 (1972-03-01), Bahnsen
patent: 3653733 (1972-04-01), Wyant
patent: 3700181 (1972-10-01), Diring et al.
patent: 3771739 (1973-11-01), Nelson

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