Interchangeable jaw tongs

Details Interchangeable jaw tongs Interchangeable jaw tongs

1995-02-14

1997-01-07

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hand bars and hand barrows

Ball retriever

294116, B25J 1504

Patent

active

055909230

ABSTRACT:
An apparatus for gripping hot investment molds either of the ring type or of the oval type, has a plastic handle with an elongated square tube extending therefrom. A trigger in the handle is connected to a linkage rod which pulls back on a closer frame. Rearwardly extending crossed tails of a pair of jaws are squeezed together by rearward movement of the closer, for closing outwardly extending palms of the jaws around an investment mold. The jaw assembly is removable so that jaws having shapes adapted specifically to engage either an investment ring or an investment oval can be provided.

REFERENCES:
patent: 1239201 (1917-09-01), MacLachlan
patent: 1350123 (1920-08-01), Theodore
patent: 1457198 (1923-05-01), Utley
patent: 2807495 (1957-09-01), Pillstrom
patent: 2923054 (1960-02-01), Hoffman et al.
patent: 3527492 (1970-09-01), Hollis
patent: 4483562 (1984-11-01), Schoolman
patent: 4669769 (1987-06-01), Polder
patent: 4962957 (1990-10-01), Traber
Kerr Sybron Catalog 1984 Cover, pp. 1, 5, and 6.
Neycraft Catalog, Cover, pp. 1 & 5 (no date).

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