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:
Sep. 17, 1991
Filed:
Oct. 10, 1989
Abstract
A self-propelled machine for continuously laying an overhead line extending above a track and attached to pylons spaced alongside the track, which comprises machine frame movable along the track in an operating direction, a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons, a storage drum mounted on the machine frame, a length of the catenary and/or the contact wire of the overhead line being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the catenary and/or the contact wire, and a drive control for adjusting the moving speed of the machine frame in response to the pay-out speed of the catenary and/or the contact wire. A lifting device is mounted on the machine frame and includes a power-driven, vertically adjustable and laterally pivotal boom, and a support and guide pulley carried by the boom and arranged to support and guide the unreeled catenary and/or contact wire from the storage drum to the operator on the work platform at a constant height determined by the vertical adjustment of the boom and a lateral position determined by the pivoting of the boom, and a device is mounted on the machine frame between the storage drum and the pulley for continuously guiding and tensioning the catenary and/or contact wire, the guiding and tensioning device including a power-driven guide roller guiding the tensioned catenary and/or contact wire to the support and guide pulley, and a drive control for the guide roller.