Camera dolly arm

Details Camera dolly arm Camera dolly arm

1998-04-03

2000-04-25

Scherbel, David A.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

254 2R, 254124, B60P 148

Patent

active

060534761

ABSTRACT:
A camera dolly has an upper arm pivotable on a lower arm. Chains and sprockets within the lower arm raise the upper arm when the lower arm is raised by a hydraulic actuator. Leveling rods maintain a camera platform in a level position as the arm is raised and lowered. A center plate in the lower arm and a brace plate in the upper arm increase the strength and stiffness of the arm. The ratio between the lower sprocket and upper sprocket within the lower arm is greater than 2:1, providing additional arm travel. A structural tube in the upper arm section provides a secure attachment point for a leveling head.

REFERENCES:
patent: 2616768 (1952-11-01), Stemn
patent: 3168284 (1965-02-01), Fisher
patent: 3915429 (1975-10-01), Zelli
patent: 4360187 (1982-11-01), Chapman
patent: 4950126 (1990-08-01), Fabiano et al.
patent: 5037068 (1991-08-01), Grotessi
Technical Manual--"The Super Peewee", Chapman/Leonard Studio Equipment, 1992, 5 pages.
2 Photographs of Falcon Dolly, 1996.

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