Adjustable pedestal trestle for theater stages or the like

Details Adjustable pedestal trestle for theater stages or the like Adjustable pedestal trestle for theater stages or the like

1981-02-02

1983-09-20

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Lazy tongs

182141, 187 18, B66F 322

Patent

active

044051166

ABSTRACT:
A vertically adjustable pedestal trestle for theater stages or the like which includes a platform carried by a top frame and lockable supporting scissors are articulated to corners of the top frame as well as a vertical adjustment device which may be driven by motor power or manually. The vertical adjustment device includes one or more additional lifting scissors arranged centrally below the platform. The lifting scissors are provided at respective leg ends with runners or sliding elements and are adapted to be extended toward the underside of the platform.

REFERENCES:
patent: 530120 (1894-12-01), Oakley
patent: 2554494 (1951-05-01), Hodgin
patent: 2931519 (1960-04-01), Beach
patent: 3464519 (1969-09-01), Whisler
patent: 3640502 (1972-02-01), Bargman
patent: 3823915 (1974-07-01), Koehler

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