Rail fastener driver with enhanced fastener positioning

Details Rail fastener driver with enhanced fastener positioning Rail fastener driver with enhanced fastener positioning

2006-09-12

2006-09-12

Le, Mark T. (Department: 3617)

Railways

Track layers

Trail rail mounted rail anchor applicator

Reexamination Certificate

active

07104200

ABSTRACT:
A rail fastener driver apparatus for driving fasteners into ties of a railroad track includes a fastener driving mechanism with a reciprocating element for engaging a fastener and driving it into a tie, a fastener magazine configured for accommodating a plurality of rail fasteners and feeding them sequentially for driving by the element, a fastener feeder mechanism including a fastener holder configured for movement between a first position sequentially receiving one fastener from the magazine and a second position placing the fastener in a driving position for engagement by the driving element and the fastener feeder mechanism configured for lowering and axially rotating the fastener from the first position to the second position. An obstacle accommodation device, and a method of driving rail fasteners are also provided.

REFERENCES:
patent: 4273052 (1981-06-01), Woolner et al.
patent: 4579061 (1986-04-01), Dieringer
patent: 4777885 (1988-10-01), Dieringer
patent: 5191840 (1993-03-01), Cotic et al.
patent: 5542355 (1996-08-01), Madison et al.
patent: 5671679 (1997-09-01), Straub et al.

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