Movie equipment dolly

Details Movie equipment dolly Movie equipment dolly

1988-04-05

1990-08-21

Spar, Robert J.

Material or article handling

Load support has linear vertical movement and additional...

Additional movement is rotational

280 4711, 280 91, 248184, B66F 1100

Patent

active

049501267

ABSTRACT:
The present invention relates to a movie equipment dolly with a chassis, a lifting arm coupled to the chassis, a hydraulic system for lifting the arm, a plurality of steerable wheels, a transmission for orienting the wheels into selected steering modes, a steering system, slip idlers for selectively disconnecting the wheels from the steering system and transmission, and a control handle that has steering, hydraulic system actuation and transmission steering mode selection operations on a common handle, so that the operator need not remove his or her hands from the control handle when performing any of the operations. The movie dolly also has a levelling head coupled to the lifting arm which allows simple, simultaneous orientation of the levelling head roll and pitch axes by manipulating a pair of adjusters.

REFERENCES:
patent: 197369 (1877-11-01), Hoffman
patent: 2715534 (1955-08-01), Hoge et al.
patent: 2995380 (1961-08-01), King
patent: 3018116 (1962-01-01), Summers et al.
patent: 3018992 (1962-01-01), Lore
patent: 3168284 (1965-02-01), Fisher
patent: 3281118 (1966-10-01), Krilanovich
patent: 4244547 (1981-01-01), Kooi
patent: 4482118 (1984-11-01), Hoffmann

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