Drive head for a scissors jack

Details Drive head for a scissors jack Drive head for a scissors jack

1990-09-24

1991-11-12

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

254 1, 254DIG3, 411 3, 411410, 411409, 411403, B66F 312

Patent

active

050641719

ABSTRACT:
A drive head for the screw of a scissors jack which is formed in the shape of a wing nut which has a hexagonal socket formed between opposed walls so that a conventional folding lug wrench can be used by inserting its hex tube into the hexagonal socket to drive it. In the event of overload, the lug wrench will slip relative to the wing nut so as to prevent excessive loads and stresses upon the jack.

REFERENCES:
patent: 1094768 (1914-04-01), Zerk
patent: 3709087 (1973-01-01), Stone
patent: 4636125 (1987-01-01), Burgard
patent: 4802653 (1989-02-01), Engel
patent: 4964602 (1990-10-01), Reinhard

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