Auxiliary Shaft having a ball-shaped end releasably mounted in a

Details Auxiliary Shaft having a ball-shaped end releasably mounted in a Auxiliary Shaft having a ball-shaped end releasably mounted in a

1994-10-20

1995-12-12

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hand forks and shovels

Handles

16114R, A01B 122, B25G 338

Patent

active

054743508

ABSTRACT:
A three-part auxiliary shaft assembly to be mounted along a hand-tool shaft, comprises a two-part sleeve and an auxiliary shaft which is ball-shaped at one end. The sleeve has a top, a bottom and a symmetrical axis running from top to bottom, and is cut in half along the symmetrical axis to define the two parts of the two-part sleeve. Each part has an inner hemi-housing parallel to the symmetrical axis of the sleeve, and running from the top to the bottom of the sleeve for tight-fitting half the cross-section of a portion of a hand-tool shaft. Near the top away from the inner hemi-housing, a second inner hemi-housing for half the ball-shaped end of the auxiliary shaft has an opening at the top, shorter than the diameter of the ball-shaped end of the auxiliary shaft. When the two parts of the sleeve are assembled, a housing is provided for the ball-shaped end of the auxiliary shaft, as well as a housing for the portion of a hand-tool shaft. These two parts are held with bolts positioned away from the opening at the top, so that over a certain pulling tension of the auxiliary shaft, it is releasable from its housing.

REFERENCES:
patent: 320436 (1885-06-01), Hock
patent: 1151012 (1915-08-01), Herringstad
patent: 3843083 (1974-10-01), Angibaud
patent: 4059360 (1977-11-01), Tessier
patent: 4200324 (1980-04-01), Helton
patent: 4944541 (1990-07-01), Waldschmidt
patent: 4980805 (1990-12-01), Maglica et al.

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