Pin tractor assembly

Details Pin tractor assembly Pin tractor assembly

1988-04-04

1989-05-09

Watkins, Donald

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

400616, G03B 130, B65H 7022

Patent

active

048281573

ABSTRACT:
A pin tractor assembly for feeding a medium having feed perforations such that the perforations engage drive pins provided on an outer surface of a rotating endless belt which engages a pair of wheels rotatably supported between two spaced-apart frames. The two spaced-apart frames are connected to each other by a connecting portion, into an integral tractor body having a slot portion which accommodates the pair of wheels and the endless belt. The assembly has a device for inhibiting radial movement of the pair of wheels positioned in the slot portion of the tractor body.

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patent: 4453660 (1984-06-01), Cornell et al.
patent: 4614287 (1986-09-01), Ueno et al.
patent: 4682904 (1987-07-01), Yoshimura

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