Patent · US Expired

Sliding wall arrangement for covered railroad freight cars

US3999489A · kind A · utility

5Cited by
1References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 15, 1975
Grant dateDec 28, 1976
Priority date
Expiry dateDec 15, 1995

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE05Y2900/51
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

The sliding wall includes a central wall section and two end wall sections, with the sections being co-planar in the closed state and movable, transversely of the car, out of the closing plane and into a shifting plane in which they are displaceable longitudinally of the car past closed wall sections. During shifting, the sliding wall sections are supported by rollers engageable with a rail, provided in an upper longitudinal stringer, and with the outer lateral surface of an outer lower longitudinal supporting beam, the stringer and the supporting beam forming, in cooperation with two corner posts, a side frame of the freight car. The upper rail is a single rectilinear and uninterrupted rail extending substantially the full length of the upper stringer. Each end section has, in the upper portion of its end adjacent the central section, an outwardly opening pocket having a horizontal catch member extending thereacross. The central section has, at the upper portion of each of its ends adjacent an end section, a sickle-shape catch lever pivotal on a horizontal axis parallel to the length of the car and, in the closing position of the sections, projecting into the pocket of the adjacen…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.