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National Castings Inc. Patents
Assignee:
National Castings Inc.
Address:
Lisle, IL
No. of patents:
11
Patents:




Patent Number Title Of Patent Date Issued
5327837 Bolster of a railroad car truck with varying cross-sectional shape to provide less torsional rig July 12, 1994
A bolster for a railroad car truck is described as having a generally hollow, box-like construction between its opposing ends which are transformed into I-shaped sections which are rigidly secured to the sideframes. The box-like frame provides the stiffness or rigidity necessary to r
5241913 Reinforced bolster for a railroad car truck September 7, 1993
A bolster of a railroad car truck is shallow and has a unique reinforcement rib which extends longitudinally of the bolster between a pair of stops which are designed to engage adjacent abutments which are carried by a transom to limit relative axial movement between the bolster and tran
5239932 Force dampening mechanism of a railroad car truck August 31, 1993
A new improved mechanism is described for dampening forces between the sideframes and bolster of a railroad car truck or bogie. The mechanism comprises a pair of triangularly shaped wedges which are positioned between a pair of wear plates carried by each of the sideframes and an adj
5226369 Sideframe for a railroad car truck July 13, 1993
A railroad car sideframe of a truck is provided with a pair of identical twin ribs which are designed to reinforce and strengthen each of the pedestal frames against stress failures caused by the large railroad cars being built today and the heavier loads which they are capable of haulin
5139161 Automatic actuator for coupler knuckle-assembly of a railway passenger car August 18, 1992
A linkage-actuator for the coupler knuckle-assembly of a railway passenger car which is mounted on the coupler head directly adjacent to the knuckle-assembly, which linkage-actuator does not extend along the shank connecting the knuckle-assembly to the car proper, thereby saving cons
5131548 Slackless, resilient drawbar system for a railway car July 21, 1992
A slackless drawbar system for a railway car in which there is provided an elastomeric pad that absorbs forces during buffing conditions and helps to maintain the slackless nature of the system. The elastomeric pad absorbs forces during lateral and vertical angling and serves to maintain
5027716 Stabilized swing-motion truck for railway cars July 2, 1991
An improved swing-motion truck in which the transom has been replaced by a pair of transverse radius or tie rods for coupling the two rocker seats of the two side frames of the truck. The ends of the rods are directly coupled to anchor brackets formed as part of the side-frame rocker sea
4867071 Truck-mounted articulated connector for railway cars September 19, 1989
An improved articulated connector or coupler in which the connection between the male connecting member and female connecting member via a king pin is provided with an elastomeric bushing housed in the male connecting member. The bushing has an outer metallic ring, and inner metallic rin
4766819 Saddle frame for passive steering single-axle truck for a railway freight car August 30, 1988
An improved saddle frame for a passive steering single-axle truck for a railway freight car that allows for unobstructed passage of infrared rays from the wheel bearings, so that they may be sensed by a hot-box detector mounted on a rail bed. The saddle frame has a center web section inc
4744308 Combined center plate/center filler for railway freight cars May 17, 1988
A combined center plate/center filler construction for the underframe of a railway car is provided with sloped, corner circumferential sections at the upper portion of the center plate to allow for the complete welding of the center plate to the undersurfaces of a pocket-receptacle of th
4645085 Method of enhancing rigidity in a railway car coupler knuckle February 24, 1987
A railway car coupler knuckle includes integral nose, hub, and tail portions. The tail portion has a lock shelf and an associated locking face as well as pulling lugs associated therewith. A tail core support aperture in the tail portion communicates with internal tail portion coring

 
 
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