Advancing material of indeterminate length – Shiftable part allowing hand loading – With shiftable roller
Patent
1976-09-24
1977-09-20
Schacher, Richard A.
Advancing material of indeterminate length
Shiftable part allowing hand loading
With shiftable roller
226 91, 226176, 226187, 214339, B65H 1722
Patent
active
040491722
ABSTRACT:
An improved planetary-type wire-feeding mechanism including a pair of cooperating skewed rollers for advancing the wire is disclosed. The rollers are carried on a pair of radially reciprocable pistons mounted in a feed housing through which the wire is advanced, and a projecting rear portion of the housing has a threaded outer surface for receiving a force-adjusting nut. A conical guide element is slidably mounted on the outer surface of the rear housing portion, and is urged against the adjusting nut by means of a calibrated spring. A pair of symmetrically arranged two-arm levers extend longitudinally through a pair of slits in a flange integral with the housing intermediate its ends, with the rear end of the levers in contact with the conical guide member through a roller, and with the front ends of the levers maintained in abutting relation with the outer ends of the pistons by means of springs. The shaft of a drive motor is fixedly connected to the rear portion of the housing.
REFERENCES:
patent: 1355616 (1920-10-01), Mohn
patent: 3517844 (1970-06-01), Wloszek
Grozdanov Petko Kostadinov
Nemechek Alfred Emmerich
Petrov Peter Dimitrov
Punchev Simeon Georgiev
Samokovliski David Albert
Institute Po Zavaryavane
Schacher Richard A,.
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