Paper tractor locking apparatus

Details Paper tractor locking apparatus Paper tractor locking apparatus

1978-03-17

1980-02-19

Knowles, Allen N.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

226179, 4006161, G03B 130

Patent

active

041890787

ABSTRACT:
A mechanism is provided for securing a paper driving tractor device along a relatively thin elongate member effective in the released condition to permit the tractor to be positioned at will along said elongate member while in the locked condition enabling, positive, secured, engagement of the tractor with said elongate member effective to prevent any movement of the tractor relative to said member, also permitting locking an elongate member repeatedly at the same position without affecting the original characteristics of the elongate member.

REFERENCES:
patent: 3317102 (1967-05-01), Lizotte
patent: 3693856 (1972-09-01), Funk

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