Handling: hand and hoist-line implements – Stove implements – Fire tong
Patent
1979-08-10
1980-09-30
Marbert, James B.
Handling: hand and hoist-line implements
Stove implements
Fire tong
A47J 4914
Patent
active
042251702
ABSTRACT:
An elongated tubular arm of non-circular internal and external cross-sectional shape is provided and has a first elongated transverse jaw carried thereby and projecting outwardly of one side of the arm. The jaw defines a transverse non-circular opening in one end closely slidably receiving the arm therethrough for longitudinal shifting of the jaw along the arm. An elongated operator of non-circular cross-sectional shape is slidingly telescoped in the arm and a first end of the operator projects outwardly of the corresponding end of the arm. A second elongated transverse jaw has one end supported from the operator first end and projects outwardly of the side thereof corresponding to the aforementioned side of the arm in opposition to the first jaw. Actuator structure is operatively connected between the arm and the operator for shifting the operator toward a predetermined position relative to the arm in a direction retracting the first end of the operator relative to the corresponding arm end and the portions of the first jaw defining the transverse opening therein and the external surfaces of the arm along which the first jaw is slidable coact to frictionally lock the first jaw in shifted position along the arm in response to slight relative angular displacement of the first jaw and the arm about an axis transverse to the first jaw and arm.
REFERENCES:
patent: 2125214 (1938-07-01), Apfel et al.
patent: 2429046 (1947-10-01), Billig
patent: 4105238 (1978-08-01), Stright
Jacobson Harvey B.
Marbert James B.
O#Brien Clarence A.
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