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:
Dec. 06, 1983
Filed:
Apr. 13, 1982
Franz Allmer, Sophia, NC (US);
Canron Corporation, West Columbia, SC (US);
Abstract
A compact bidirectionally operative tie exchanging apparatus includes an extensible telescoping beam assembly carried in a support cradle mounted on the underside of a railway maintenance car. In a first embodiment, the beam assembly includes an inner and an outer beam telescopically received within one another with hydraulically actuated tie clamping arms mounted on the opposite, remote ends of the beams assembly. A push/pull hydraulic cylinder has its ram and its cylinder connected, respectively, to the inner and outer beams. Hydraulically actuated locking pins mounted on the support cradle are selectively actuatable to lock either the inner beam or the outer beam to its respective support cradle. When the inner beam is locked to its support cradle and the push/pull hydraulic cylinder actuated, the unlocked outer beam can be extended and retracted to remove and replace railway ties from one side of the rail bed and, when the outer beam is locked to its support cradle and the push/pull hydraulic cylinder actuated, the unlocked inner beam can be extended and retracted from the other side of the rail bed. In another embodiment, the tie exchanging apparatus is mounted on a turret to permit controlled rotation about the vertical axis. The rail tie exchanger is advantageously compact, simple to operate, and can be used with equal facility for removing rail ties from one side of a rail bed or the other.