Mid-line tilt mechanism for view camera

Details Mid-line tilt mechanism for view camera Mid-line tilt mechanism for view camera

1987-08-07

1989-03-21

Gellner, Michael L.

G03B 506, G03B 508

Patent

active

048148032

ABSTRACT:
In a field type camera, having a flat bed, a front standard and a rear standard, both of which are mounted on frame elements of the bed, and both of which can be moved forward and backward, enabling focusing an image upon a ground-glass focusing screen, a rack and pinion device is provided to the point at which the front or rear standard of the camera is normally hinged to the base for folding up the camera, the hinge arrangement allowing the front and rear standards to be folded to a position which is parallel to the flat bed. A shaft near the base of the standard runs from one side of the camera to the other. On the shaft a pinion is mounted at each end. Each pinion engages a rack mounted at respective ends. When the pinions are turned, they drive the camera standard forward or backward relative to the base, causing the standard to pivot from a location near to, but not limited to, the vertical mid-line of the standard, effecting a mid-line tilt. The shaft and pinion assembly is also integrated with a system of grooved plates which slide upon one another, permitting the rear standard to be translated in a plane which remains coincident with the plane already established. The camera includes a traditional base support strut, which on known folding flat bed cameras constitutes the only means of executing the rear tilt.

REFERENCES:
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patent: 4497554 (1985-02-01), Hoffman
patent: 4602860 (1986-07-01), Hoffman

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