Vertically aligning slackless drawbar

Details Vertically aligning slackless drawbar Vertically aligning slackless drawbar

2007-05-08

2007-05-08

Morano, S. Joseph (Department: 3617)

Railway draft appliances

Cushioned

Drawbars

Reexamination Certificate

active

10971656

ABSTRACT:
A vertically aligning slackless drawbar for connecting adjacently disposed ends of a pair of railway freight cars together in a substantially semi-permanent manner. Such vertically aligning slackless drawbar comprises a first member and a second member pivotably and slideably coupled to each other with a pivot pin, preventing lifting of the body of such railway freight car from the bolster in a light aluminum railway freight car application. A predetermined clearance is designed between the adjacent ends of the first and second member to limit lateral movement of the second member in relationship to the first member in order to limit occurrence of jackknifing. The first member is secured to a yoke with the standard “F” pin. The yoke is further secured between the rear lug and a front lug of a center sill of a railway freight car. A pair of tapered gravity wedges compensate for longitudinal slack and are held in place with a pair of leaf springs disposed between the rear lug and said gravity wedge.

REFERENCES:
patent: 4552377 (1985-11-01), Folkerts
patent: 5131548 (1992-07-01), Chi

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