Articulated jack

Details Articulated jack Articulated jack

1998-06-17

2000-04-18

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

B66F 308

Patent

active

060505478

ABSTRACT:
This is an articulated jack with two pairs of arms, connecting at one end with a nut (11) and at the other with a bar (12). Both these are in turn connected by a spindle worked by a crank winding handle. The other ends of the arms rotate around a base (1) and a gripping device (2.about.. The outer arms (3, 4) and inner arms (5, 6) are in turn connected by auxiliary parts (18). The actual size of the jack has been considerably reduced.

REFERENCES:
patent: 1382733 (1921-06-01), Lanier
patent: 4055329 (1977-10-01), Hammond
patent: 4802653 (1989-02-01), Engel

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