Tri-roll scanning arrangement

Details Tri-roll scanning arrangement Tri-roll scanning arrangement

1987-07-23

1988-08-09

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Original moves continuously

355 8, 74209, G03B 2748, G03B 2750, G03G 1528, G03G 1532

Patent

active

047631716

ABSTRACT:
A scanning arrangement for supporting a device for scanning movement across a field, having a carriage supported for scanning movement through two parallel and co-planar U-shaped channels, each channel having upper and lower bearing surfaces, and an open side facing the opposite channel. The carriage is supported on a tri-roll bearing, including a rigid driver roll drivingly coupled to the axle member and in driving engagement with one of the bearing surfaces, and two rigid idler rollers, each in driven engagement with the driver roll and the other bearing surface, and maintained in non-contacting relationship, while provided with a spring force biasing the idler rolls toward one another.

REFERENCES:
patent: 1093922 (1914-04-01), Dieterich
patent: 1289818 (1918-12-01), Kurkjian
patent: 2577190 (1951-12-01), Hare
patent: 2748615 (1956-06-01), Nistri
patent: 2772573 (1956-12-01), Thomas
patent: 4346984 (1982-08-01), Kingsley
patent: 4444069 (1984-04-01), Dangschat

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