Photocopying – Projection printing and copying cameras
Patent
1983-03-24
1984-09-25
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
355 55, 104107, 238281, G03B 2700
Patent
active
044732910
ABSTRACT:
In a large, track mounted industrial camera or projector, a leveling arrangement for maintaining the track rails level when their support beams deflect under the influence of the weight of the camera and the rail mounted carriage which carries the camera toward a subject holder at one end of the track. Each rail is mounted on a rail base held down on the underlying support beam by a series of hold down screws. Adjustment screws are threaded through the rail bases and rest on the beams at their lower ends to control the distance of the rail bases above the beams. Each adjustment screw can be independently adjusted to compensate for beam deflection under actual loading conditions and for the variation in beam deflection along the length of the track. The overall track structure is stiffened to reduce beam deflection by an internal cable support structure secured to the rails and by a canopy secured to the beams.
REFERENCES:
patent: 293451 (1884-02-01), Grosscup
patent: 311254 (1885-01-01), Nickerson
patent: 589247 (1897-08-01), Cooper
patent: 670207 (1901-03-01), Miller
patent: 2402107 (1946-06-01), Wekeman
patent: 3639054 (1972-02-01), Wally
patent: 3645621 (1972-02-01), Wally
patent: 3724948 (1973-04-01), Wally et al.
patent: 3762816 (1973-10-01), Wally
Hayes Monroe H.
Opti-Copy, Inc.
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