Back-up brake assembly for a partition strip feeding mechanism i

Details Back-up brake assembly for a partition strip feeding mechanism i Back-up brake assembly for a partition strip feeding mechanism i

1975-02-28

1977-01-04

Saifer, Robert W.

Sheet feeding or delivering

Feeding

226151, B65H 500

Patent

active

040008916

ABSTRACT:
A back-up brake assembly for a partition feeder mechanism for preventing back-up movement of a partition strip fed therepast. The assembly comprises a partition guide having a guide surface for movement of a partition strip therealong from a receiving end to a forward end. A pivot arm is mounted for pivotal movement about a generally vertical axis and has an end adapted for engagement with a partition strip as it moves therepast. Means are provided for biasing the engaging end of the arm toward the guide surface for engagement with a partition strip as it moves past. The relative locations of the pivotal axis, and the engaging end of the arm are such that forward movement of the partition strip through the guide means into contact with the engaging end of the arm, moves the engaging end away from the guide surface causing pivotal movement of the arm against the bias, and further such that a back-up movement of the partition strip while engaged with the engaging end of the arm produces a moment about the pivotal axis tending to pivot the arm in the opposite direction and move the engaging end toward the guide surface, thereby wedging the partition strip between the engaging end and the guide surface.
A recess is provided in the guide surface adjacent the engaging end of the arm such that a portion of the partition strip overlying the recess is urged into the recess by the engaging end under a force tending to urge the partition strip to back up.

REFERENCES:
patent: 2388423 (1945-11-01), Langdon
patent: 2685362 (1954-08-01), Larsen
patent: 3304082 (1967-02-01), Cunningham

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