Retractable roller support for use with flexible rolling support

Details Retractable roller support for use with flexible rolling support Retractable roller support for use with flexible rolling support

1977-02-07

1978-12-12

Bonck, Rodney H.

Supports

Pipe or cable

Tool cord or tube

191 12C, 248 49, 248 55, H02G 1100

Patent

active

041292774

ABSTRACT:
The effective movement range of a rolling support such as a flexible chain linkage for electrical conductors and/or fluid conduits is materially increased by the provision of one or more retractable roller supports for the elevated cantilevered section of the rolling support upstream from its lower anchored end. The retractable roller support allows the rolling loop portion of the rolling support to pass through the retractable roller support in either direction. The weight of the rolling support is utilized to bias the retractable roller support toward its active supporting position.

REFERENCES:
patent: 927969 (1909-07-01), Henry
patent: 2816734 (1957-12-01), Crofoot
patent: 2864907 (1958-12-01), Waninger
patent: 3024325 (1962-03-01), Waninger
patent: 3157376 (1964-11-01), Merker et al.
patent: 3291921 (1966-12-01), Waninger
patent: 3860027 (1975-01-01), McCain et al.
patent: 3994373 (1976-11-01), Loos et al.

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