Friction feed tractor

Details Friction feed tractor Friction feed tractor

1982-08-05

1984-10-30

Levy, Stuart S.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

226108, 226186, 4006161, 400636, B65H 1738, B65H 1720, B41J 1130, B41J 1134

Patent

active

044795980

ABSTRACT:
The tractor comprises a frame, a drive roller carried by the frame, a pressure roller and a carrier therefor. The pressure roller is biased against the drive roller. The pressure roller can be moved to be spaced slightly from the drive roller to enable paper adjustment or it can be moved to a storage position. The friction feed tractor has a paper edge guide which is automatically moved to a storage position when not in use. In their storage positions the friction feed tractor and paper edge guide act as paper supports for pin feed tractor operation.

REFERENCES:
patent: 2664988 (1954-01-01), Metzner
patent: 3072225 (1963-01-01), Manning et al.
patent: 3082970 (1963-03-01), Rasmussen
patent: 3101913 (1963-08-01), Davis
patent: 3285164 (1966-11-01), Matavazos
patent: 3308919 (1967-03-01), Cunningham
patent: 3323700 (1967-06-01), Epstein et al.
patent: 3421612 (1969-01-01), Pitt
patent: 3707215 (1972-12-01), Familant
patent: 3917048 (1975-11-01), Riley
patent: 4000762 (1977-01-01), Mizuno
patent: 4010883 (1977-03-01), Ritter

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