Device for shifting ratchet means in wind-up apparatuses

Details Device for shifting ratchet means in wind-up apparatuses Device for shifting ratchet means in wind-up apparatuses

1984-03-20

1985-07-16

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242106, B65H 7548

Patent

active

045291462

ABSTRACT:
This invention relates to a device for shifting ratchet means in wind-up apparatuses which comprise a rotary wind-up drum (1) with one or more pawls adapted to cooperate with the ratchet means (17) to block the rotation of the wind-up drum (1). The wind-up apparatus presents an opening (10) for a means (2) to be wound onto the wind-up drum (1) and is adjustable such that the opening (10) will take a position that permits withdrawal in the desired direction of the means (2) wound onto the wind-up drum (1). To permit shifting the ratchet means (17) by simple means without having to dismantle the wind-up apparatus, the ratchet means (17) has one or more gripping portions (30 and/or 31) which can be caused to cooperate with the wind-up drum (1) to shift the ratchet means (17) in relation to the opening (10) by rotation of the wind-up drum (1).

REFERENCES:
patent: 794549 (1905-07-01), Putnam
patent: 915997 (1909-03-01), Narum et al.
patent: 1520808 (1924-12-01), Chippindale
patent: 1675140 (1928-06-01), Schenderlein
patent: 2031459 (1936-02-01), Chambless
patent: 2391840 (1945-12-01), Meletti

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