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
1986-02-28
1987-06-30
Levy, Stuart S.
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
254405, B66D 306
Patent
active
046764844
ABSTRACT:
A helicopter transportable traveling block having means for ready assembly and disassembly into component portions of preselected maximum weight, the traveling block being formed into two sub-assemblies, each having an inner and outer plate with a shaft therebetween and a plurality of sheaves rotatably supported on the shaft between the inner and outer plates. The lower portions of both the inner and outer plates of each sub-assembly has perpendicularly extending clevis support and bracket members with aligned openings therebetween, the clevis support members also having lower openings. Bolts are positioned in the aligned openings of the clevis support and bracket members for each sub-assembly to retain the lower end of the sub-assembly together. A U-shaped clevis is secured to the clevis support members of each of the sub-assemblies to thereby retain the sub-assemblies together at the lower end. At the upper end of each sub-assembly the inner and outer plates have radially extending clip members and coupling members which overlap with each other. Bolts received in aligned holes in the overlapped clip and coupling member secure the sub-assembly together and overlapping portions of the coupling member receive a bolt which also supports a sling member so that the upper portion of the sub-assembly is held together. By breaking down the traveling block into sub-assemblies or portions thereof the maximum weight required to transport the traveling block can be minimized while the traveling block is easily assembled after being transported.
REFERENCES:
patent: 3421 (1844-01-01), Waterman
patent: 1271869 (1918-07-01), Dunseath
patent: 1603730 (1926-10-01), Wilkinson
patent: 2502570 (1950-04-01), Johnson
patent: 2650403 (1953-09-01), Taylor
Levy Stuart S.
Matecki Katherine
Parco Mast and Substructure, Inc.
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