Large format photographic apparatus

Details Large format photographic apparatus Large format photographic apparatus

1983-08-05

1986-04-01

Mathews, A. A.

Optics: motion pictures

Removable film strip magazine type

354293, 352132, 352243, G03B 1500, G03B 2900

Patent

active

045794340

ABSTRACT:
Large format photographic apparatus for creating the illusion of vehicle motion has a winch frame for supporting a cable arrangement and for simultaneously pulling two separate cables. A first cable is coupled to a subject vehicle to be photographed. The second cable is coupled via a linkage translator to a moveable platform mounted camera cart. The platform has a pair of spaced apart rails having inwardly facing surfaces and the cart has laterally disposed resilient wheels engaging the rails whereby transverse vibrational motion is reduced. Beyond the subject vehicle is an upright triangular weight bearing structure. A separate cable coupled from the rear of the vehicle being photographed to the weight balances and maintains an inertial drag on the vehicle to smooth out the motion of the cable of the vehicle. Similarly a separate cable coupled from the cart is coupled to a different upright triangular weight bearing structure. In operation, a winch on the winch frame is rotated, causing simultaneous pulling of the subject vehicle and the cart. During this time the film in the camera is exposed, creating a sharp image of the vehicle, yet with somewhat blurred wheels, thus providing the image of a moving vehicle.

REFERENCES:
patent: 2599624 (1952-06-01), Gillette
patent: 4498744 (1985-02-01), Ealovega et al.
patent: 4515455 (1985-05-01), Northmore

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