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
Patent
1978-09-08
1981-02-17
Spar, Robert J.
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
24237, 254409, B66D 136
Patent
active
042510619
ABSTRACT:
A snap roller utilized as a snatch lock employs a pulley and a rod fabricated from a wire-like spring material to which the pulley is journalled. The rod has a portion of its length, located substantially in the central regions thereof to which the pulley is journalled. A pair of portions of the length of the wire-like rod extends radially outwardly from the longitudinal axis of the pulley in a direction substantially parallel to one another. The ends of the wire-like rod are formed into oppositely directed hooks such that each of the distal ends approach, and if desired contact the opposed length of the pair of portions of the wire-like rod. In use, a rope or line may be passed between the hook-like ends so so as to engage a groove in the pulley due to the fact that each hook-like end resides in planes that are skew to one another allowing the distal ends of the hooks to be forced outwardly from the opposed one of the pair of portions of the wire-like rod. An alternate embodiment utilizes a hook-like excursion of the hook-like ends of the wire-like rod which engage portions of the lengths of the wire-like rod in a locking-like arrangement, which enhance the ability of the rod to carry great forces applied to the line or the eye hook carried thereby.
REFERENCES:
patent: 675306 (1901-05-01), St. John
patent: 1892678 (1933-01-01), McIntyre et al.
patent: 2303993 (1942-12-01), Gore
patent: 3975921 (1976-08-01), Pomaski
Farkas Robert D.
Noland Kenneth
Spar Robert J.
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