Handling: hand and hoist-line implements – Hoist-line slings
Patent
1977-03-07
1978-06-06
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hoist-line slings
B66C 118
Patent
active
040932923
ABSTRACT:
A sling for moving loads is comprised of a coil having a multitude of substantially uniform, closed and juxtaposed loops. The loops are elongated to form a middle portion of two substantially parallel adjacent coil sections, and a pair of bight-shaped portions at opposite ends of the middle portion. Each coil section is comprised of a plurality of filamentary material strands which are spaced from each other. A plurality of windings are wound about strands in each of the coil sections so as to retain these coil sections in substantial parallelism adjacent each other during movement of a load. Each winding has a plurality of substantially annular turns which comprise a run located in the interspaces bounded by the strands. The run extends from one to the other of the coil sections in direction transversely of the elongation of the loops and serves to interconnect these coil sections and to prevent them from moving apart from each other when one of the bight-shaped portions is urged in direction away from the other of the bight-shaped portions during movement of the load. A method of making the sling is also disclosed.
REFERENCES:
patent: RE26704 (1969-11-01), Norton
patent: 1465801 (1923-08-01), Bell
patent: 1962585 (1934-06-01), Faure-Roux
patent: 2426538 (1947-08-01), Von Wehrden
patent: 2769439 (1956-11-01), Layer
patent: 3310333 (1967-03-01), Hutson
patent: 3411400 (1968-11-01), Morieras et al.
patent: 3718945 (1973-03-01), DE Treglode
Marcet Jose Maria Maso
Peradejordi Guanabens Jose de Calasanz
Cherry Johnny D.
Striker Michael J.
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