Wireworking – Implements – Coiling
Patent
1976-02-09
1976-11-30
Husar, Francis S.
Wireworking
Implements
Coiling
29203H, 242 717, B21F 300, H01B 1300
Patent
active
039943208
ABSTRACT:
A hand tool for loosening and removing coil wire wrap electrical connections by engaging the end of the wire wrap, rotating the tool under the coil and then lifting the loosened coil with the tool off the terminal pin. The tool has a helical groove at one end of a first tubular member and a second tubular member concentric with the first having a guide pin in the end of the tube adjacent to the helical groove. The end or entire second tubular member concentrically fitted over the first tubular member is adjustable to vary the spacing between the pin and the side wall of the helical groove. The end of the helical groove is tapered to slide under the end of a coil wire wrap thus allowing it to slip easily into the tool without damaging the wire. The second tubular member is retained concentric with the first by a pin through the first tubular member engaging a slot in the second tubular member and a collar and spring biasing the second tubular member against the pin. In order to control the force applied to the coiled wire wrap a third tubular member is fitted over the second and is retained at the opposite end of the tool from the helical coil. The third tubular member acts as a handle and has a clutch arrangement to vary the slippage between it and the second tubular member. The third tubular member (i.e. the handle) thus can be adjusted to slip at a predetermined force avoiding damage to the wire and terminal.
REFERENCES:
patent: 3019517 (1962-02-01), Lovecky
patent: 3095913 (1963-07-01), Shepherd
Dorsey Donald H.
Dorsey Ted C.
Brown John S.
Husar Francis S.
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