Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1988-11-21
1990-02-20
Hail, III, Joseph J.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421076, B65H 7548
Patent
active
049019384
ABSTRACT:
An electrical cord retractor includes a closed hollow case separate from any apparatus with which an electrical cord will be used. Within the case is a winder, such as a rotatable spool, and the case is openable to permit an electrical cord to be wound upon the spool. The case wall has passageways through which an electrical cord can pass from the spool within the case to the exterior of the case, so that the cord can be connected to an apparatus independent of the case. The passageway may be slots which extend to a free edge of the case wall, so that after an electrical cord is wound on the spool, portions of the electrical cord extending from the spool can be inserted into the slots as the case is closed. The spool has a cord guide, in the form of a slot, extending from the external face of one of the spool flanges into the spool hub. A portion of an electrical cord is held stationary in the slot so that as the spool is rotated the remainder of the cord is wound upon the spool. The slot in the spool is arranged at an acute angle to the planes of the spool flanges, so that as the spool is rotated, the two portions of the cord extending from the slot will be wound on different sections of the spool hub. Within the case is a spring, constantly urging the spool to rotate in one direction, and a latch for releasably locking the spool against rotation.
REFERENCES:
patent: 1120341 (1914-12-01), Smith
patent: 1687371 (1928-10-01), Leeper
patent: 2172043 (1939-09-01), Wolf
patent: 2429675 (1947-10-01), Eypper
patent: 2591438 (1952-04-01), Kinman et al.
patent: 3782654 (1974-01-01), Kasa
patent: 3809331 (1974-05-01), Gaul
Alexander Camie
Cantley Donald G.
Hail III Joseph J.
Levine Alan H.
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