Cord lock with both sharp and dull teeth

Details Cord lock with both sharp and dull teeth Cord lock with both sharp and dull teeth

1974-10-17

1976-04-27

Gelak, Bernard A.

Joints and connections

Interfitted members

Clamped members

403211, 24115M, 24136R, F16g 1104

Patent

active

039531449

ABSTRACT:
A cord locking device including a body carrying a movable slide element having two sets of teeth at its opposite sides for releaseably gripping a pair of cords to lock them against movement in a predetermined direction, with each set of teeth including a first tooth which is relatively sharp and therefore capable of readily locally deforming a surface of the cord in a manner maximizing the tendency for automatic self locking displacement of the slide element by the cord upon longitudinal movement thereof, and including a second tooth which is less sharp and acts to take longitudinal forces exerted by the engaged cord in the ultimate locking condition in a manner protecting the sharper tooth against deformation and damage.

REFERENCES:
patent: 545760 (1895-09-01), Ashley
patent: 1872047 (1932-08-01), Templin
patent: 2177364 (1939-10-01), Fotsch
patent: 2945563 (1960-07-01), O'Hara
patent: 3132390 (1964-05-01), Boden
patent: 3137027 (1964-06-01), Birkle
patent: 3796504 (1974-03-01), Marechal

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