Pulley with a pivoting flange and built-in jammer

Details Pulley with a pivoting flange and built-in jammer Pulley with a pivoting flange and built-in jammer

1997-03-24

1998-12-08

Matecki, Katherine

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

254406, B66D 310

Patent

active

058458948

ABSTRACT:
A pulley comprises a pair of flanges, a rotary roller mounted on a first spindle, and a second flange which oscillates on the first spindle. A jammer is incorporated inside the pulley and comprises a pivotable tumbler on a second spindle between an active locking position and an inactive unlocking position of a rope. The second spindle is tubular and extends parallel to the first spindle, and includes an internal orifice disposed to come into alignment with a hole of the second flange when the second flange reaches a position near to a closed position, so as to enable a snap-hook to be attached through an orifice of the tumbler simultaneously resulting in locking of the second flange in the closed position.

REFERENCES:
patent: 916091 (1909-03-01), Batzer
patent: 1408273 (1922-02-01), Davis
patent: 2638184 (1953-05-01), Sturdivant
patent: 2754084 (1956-07-01), Le Bus, Sr.
patent: 3191910 (1965-06-01), Eitel
patent: 5056760 (1991-10-01), Jorgensen

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