The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1976
Filed:
Dec. 10, 1974
Thomas J Finlayson, Palos Hills, IL (US);
Michael H Grace, Griffith, IN (US);
George H Smith, Hazelcrest, IL (US);
Allis-Chalmers Corporation, Milwaukee, WI (US);
Abstract
The operator's station of a lift truck is optionally elevatable with the carriage and the electric control interconnection between the operator's station, and the truck main frame includes a novel reel mechanism for the multiple lead electric conduit which does not use slip rings. The reel mechanism includes two drums which rotate together on a stationary shaft secured to the main frame. One drum is for coiling a flexible multi-lead round conduit which has its free end connected to the electric control console at the operator's station. The other drum contains a multiple lead flexible ribbon having its outer end connected to the inner end of the round conduit. The ribbon is coiled about the stationary shaft with its radially inner end passing through a hollowed portion of the stationary shaft and thence to a point of connection to a terminal block on the main frame. As the operator's station is raised with the carriage the round conduit is reeled out from the primary drum thereby rotating it against the bias of a windup spring. As the round conduit is reeled out from the primary drum the secondary drum is coiling the loosely wound ribbon about the shaft thus increasing the number of turns of its coil. The use of ribbon type electric conduit in the loosely wound secondary drum obviates the binding and jamming incurred when round conduit is used.