Screw actuated scissor jack with a self adjusting bearing surfac

Details Screw actuated scissor jack with a self adjusting bearing surfac Screw actuated scissor jack with a self adjusting bearing surfac

1976-05-10

1977-05-24

Smith, Al Lawrence

Implements or apparatus for applying pushing or pulling force

Single throw lever

Lazy tongs

254126, 254133R, 254DIG4, B66F 322

Patent

active

040250539

ABSTRACT:
There is disclosed a scissor-type screw actuated jack arrangement having a floating load bearing plate centrally situated over supporting lift arms when in the fully extended position and a pair of facing U-shaped channel members coupled to opposite ends of the lift arms for carrying the bearing plate and screw.

REFERENCES:
patent: 2546361 (1951-03-01), Floyd
patent: 2929519 (1960-03-01), Taylor
patent: 2931519 (1960-04-01), Beach

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