Abstract: Linkage device for a couplings of railway vehicles, the coupling head of which is connected to a drawbar linked to a steering pivot of the railway vehicle, which drawbar is provided with spring elements sitting on it in order to dampen compressive and tensile force that arise, e.g., when coupling the railway vehicle. The spring elements are fastened to a plate that can be rotated about an axis of rotation of the steering pivot. In this way, they are also deflected when the coupling is deflected so that the compressive and tensile forces acting on the latter also act upon its entire surface evenly, even when the coupling is deflected. The linkage device is also provided with overload protection.
Abstract: A vehicle coupling assembly includes a bearing bracket, a rod, a pin and an abutment element. The bearing bracket includes compressible elements, a connection member intermediate the compressible elements, and a rear plate rearward of the connection member. The rod has an end wall, a first side of which is adjacent to one of the compressible elements. The pin extends through the compressible elements, a connection member hole defined in the bearing bracket, and an end wall hole of the rod. A pin support surface at a first pin end faces a first side of the connection member, one of the compressible elements being between the pin support surface and the second side of the connection member. The abutment element is at a second pin end, and abuts a second side of the end wall of the rod.
Abstract: A device for connecting a coupling shaft to a car body of a track-guided vehicle, wherein the device includes a linkage connected to the coupling shaft and a bearing block connectable to the car body to which the linkage is articulated by means of at least one pivot pin so as to be pivotable in a horizontal plane. At least one pivot pin is designed as a shock protector and thereto comprises a bearing disc having a concentrically arranged recess and a shearing element having a breaking or separating region. A bearing block-side region of the shearing element is accommodated in the recess of the bearing disc and a linkage-side region of the shearing element is accommodated in a pin seat of the linkage.
Abstract: A joint arrangement for connecting a drawbar to a carriage includes a push/pull device for the transmission of pushing and pulling forces arranged at the carriage end of the drawbar. The push/pull device comprises a mid-piece connected to the carriage side end of the drawbar, extending the drawbar in the longitudinal direction thereof which extends through an opening provided in the baseplate. A front spring plate and a rear spring plate are provided on the mid-piece with a front spring element between the front spring plate and the baseplate in the drawbar longitudinal direction and a corresponding rear spring element is provided between the baseplate and the rear spring plate.
Abstract: A joint arrangement for connecting a drawbar to a carriage includes a push/pull device for the transmission of pushing and pulling forces arranged at the carriage end of the drawbar. The push/pull device comprises a mid-piece connected to the carriage side end of the drawbar, extending the drawbar in the longitudinal direction thereof which extends through an opening provided in the baseplate. A front spring plate and a rear spring plate are provided on the mid-piece with a front spring element between the front spring plate and the baseplate in the drawbar longitudinal direction and a corresponding rear spring element is provided between the baseplate and the rear spring plate.
Abstract: An energy dissipating elastomer damper comprises a generally hollow housing member having an interior aperture of a predetermined cross section. A first closure member is attached to one end of the housing and has an axial aperture and a second closure member is attached to the other end of the housing and has an axial aperture. A compressible resilient elastomer member is disposed within the interior aperture of the housing. A force transmitting member is disposed for axial movement within the compressible resilient elastomer member and has at least one spherical force transmitting portion of a predetermined shape disposed intermediate a first end extending through the axial aperture of the first closure member and a second end extending through the axial aperture of the second closure member.
Abstract: A self-positioning cushioning device adapted to be mounted in the end of a rail car sill includes a hydraulic cylinder and yoke. A piston rod extends from the cylinder and is joined to one end of a yoke. The other end of the yoke is joined to a rail car coupler through a drawbar. A preloaded stack of elastomer pads is confined in a pocket in the yoke between a pair of stop plates which extend laterally of the yoke to engage stops during movement of the yoke, rod and piston in response to buff and draft impacts. The cylinder is filled with pressurized hydraulic fluid which maintains the piston in a central neutral position with the stop plate adjacent to coupler held against stops on the rail car sill. Buff impacts are cushioned first by the cylinder and at the end of the stroke by both the cylinder and the spring. Draft impacts are cushioned by both the cylinder and the spring.
Type:
Grant
Filed:
April 11, 1997
Date of Patent:
March 19, 2002
Assignee:
ASF-Keystone, Inc.
Inventors:
Jay P. Monaco, Julius I. Perchets, Mark P. Scott
Abstract: A shock absorbing tow bar for connection between the accumulating trolley and load carriage of a power and free conveyor system is disclosed. The tow bar includes one component that is connectable to the accumulating trolley and another that is connectable to the intermediate trolley of the load carriage. Limited relative shifting is permitted between the components of the tow bar. Moreover, the components are threadably intercoupled so that such relative shifting requires a screwing or unscrewing action that serves to cushion movement between the accumulating trolley and load carriage.
Abstract: A shock-resistant coupler for a vehicle includes a substantially hollow draft gear tube and a coupler head. The draft gear tube has an inside surface, and the coupler head has a flexible, substantially hollow shank portion. The shank portion has a distal end that extends into one end, or mouth, of the draft gear tube. A collar on the distal end features a predetermined number of longitudinally extending relief grooves. Formed in the shank portion adjacent the distal end thereof are at least two slots that extend longitudinally from the collar. These slots enable the distal end of the shank portion to be compressed inwardly so that the shank portion may be inserted into the draft gear tube. A plurality of shear bolts, directed radially through openings in the draft gear tube and corresponding threaded holes in the collar, enable the shank portion to be secured against the inside surface of the draft gear tube.
Type:
Grant
Filed:
February 24, 2000
Date of Patent:
November 27, 2001
Assignee:
Westinghouse Air Brake Company
Inventors:
Steven C. Rumsey, Zoltan Kovacs, David S. Preuninger
Abstract: A shock absorber for a railcar locates within a center sill of the railcar. The shock absorber has a housing that moves relative to the center sill. A backstop is welded to the center sill for retaining the piston shaft. The backstop has a top, a bottom and two parallel sides. The height of the backstop from the bottom to the top is substantially less than the center sill. The sides of the backstop are welded to the sidewalls of the center sill in a position which provides an upper clearance between the top of the backstop and the top wall of the center sill and a lower clearance between the bottom of the backstop and the bottom of the center sill.
Abstract: When slack-free railcar connector assemblies are placed under very high tensile loading, the connector assembly components will stretch and allow a typical "rigid" gravity wedge to descend into a fully seated position between the components and lock-in the tensile loads. The locked-in loads become additive in nature when successively encountered compressive loads are experienced by the connector assembly, thereby increasing the lateral drawbar angling forces, as well as accelerating coupling component wear. The wedge component of the present invention includes a means for vertically supporting and retaining the wedge in a holding position slightly above the normally fully seated position during the tensile loading, thereby eliminating the build up of tensile forces in the connector assembly.
Type:
Grant
Filed:
April 10, 1996
Date of Patent:
November 12, 1996
Assignee:
Amsted Industries Incorporated
Inventors:
Richard G. Beauclerc, Charles P. Spencer, Franklin S. McKeown, Jr.
Abstract: A railcar connector assembly includes an elastic pad held in a cage that is interposed between parts of the assembly to provide limited slack of an amount approximately equal to a dimension that the pad extends from the cage.
Abstract: 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 the slackless nature of the system during these conditions. Preloading of the resilient elastomeric pad is provided by means of an adjustable wedge element, which wedge element is adjustably positionable relative to the elastomeric pad by means of a screw shaft and nut, whereby the initial loading of the pad may be achieved to meet any required operating conditions and to accommodate wear and tear.
Abstract: A fragmentable insert for maintaining a railroad draft gear in a shortened state to facilitate assembly in the pocket of a railroad car. The insert is a generally rectangular structure having at least one set of opposing faces bisected by a pair of grooved notches. The two sets of grooved notches are generally perpendicular to each other. A bore extends through the body of the insert between the opposing faces which are bisected by the grooved notches. The bore is configured to reduce the thickness of the material between its wall surface and the surfaces of the other pairs of opposing faces not intersected by the bore.
Type:
Grant
Filed:
October 22, 1990
Date of Patent:
November 19, 1991
Assignee:
Miner Enterprises, Inc.
Inventors:
Ding-Huei R. Fong, Richard A. Carlstedt
Abstract: A railroad car coupler arrangement which limits the lateral movement of square butt couplers to prevent excess longitudinal misalignment, particularly on railroad cars having single axle trucks. The coupler includes a head and shank which fit into a coupler pocket. An end wall of the shank engages a follower plate which is in contact with a draft gear cushioning device. The shank end wall has a vertically-extending recess and the follower plate has a cooperating, vertically-extending projection which interfits with the recess to limit lateral movement of the coupler shank relative to the coupler pocket transversely of the longitudinal centerline of the car.
Type:
Grant
Filed:
March 24, 1988
Date of Patent:
July 18, 1989
Assignees:
Trailer Train Company, Amsted Industries, Inc.
Abstract: A resiliently deformable fender for controlling transverse movement of a railway vehicle draft gear follower block and for cushioning engagement between the follower block and the center sill of a railway car body.
Abstract: A railroad car coupler arrangement particularly suited to cars with single axle trucks including means defining a coupler pocket, a coupler head with a coupler shank and a butt end, a draft gear cushioning device in the pocket with a follower plate captured against transverse movement. The butt end and follower plate include interengaged means to restrain the butt end against transverse movement.
Abstract: A slackless draw bar coupler arrangement in which the car has a draw bar pocket with an open top, a slotted draft plate and a buff plate and the draw bar has a bar body with a spherical head connected to the body by a neck. Located about the neck is a thrust ring for disposition between the draft plate and the head and at that side of the head remote from the neck, there is a thrust disc insert for disposition between the buff plate and the head. The thrust disc insert and thrust ring are carried in holders. Between the buff plate and the thrust disc insert is a removable wedge which is spring loaded to urge the thrust disc insert firmly towards the head of the draw bar.
Type:
Grant
Filed:
July 11, 1985
Date of Patent:
October 20, 1987
Assignee:
Urban Transportation Development Corporation, Ltd.
Abstract: To obtain a defined reset for horizontal articulations for an elastic articulation of a central buffer coupling, if at least one elastic ring is used, the inner part of the housing as well as the drawbar have the greater axis of their cross-section in the vertical in the installed position. The coupling which is secured on the vehicle and a drawbar which traverses the housing are supported by a ring of rubber, plastic or similar resilient material which is prestressed normal to the coupling axle of the coupling and arranged between the housing and the drawbar. The drawbar and a side of the housing have peripheral cams directed toward each other. The housing and the drawbar have an oval cross-section and the rings are spaced by cams formed on the drawbar and portions of the housing, the ring and the housing and the drawbar have a major axis of their cross-section extending along the vertical in their installed position.
Abstract: A coupler for a railway car coupling system includes an elongated shank terminating in a generally rectangular butt portion. The shank is generally octagonal in cross-section for strength, and the coupler butt portion has an end face provided with a convex spherically radiused contact area. The contact area is adapted to cooperate with a follower having a correspondingly concave spherically apertured recess. The butt portion end face is also provided with relieved corners to reduce wear and scoring thereon as it contacts and rotates against the follower. Relieved portions are provided in the coupler butt portion adjacent a transverse pin receiving aperture for accommodating limited angling of the coupler within the coupling system.
Abstract: The draft gear includes a slack adjustment and cushioning assembly mountable within a female connector for pin connection with a male connector inserted therein. The assembly is made up of a follower which contacts the rear end of the male connector, a slack adjustment wedge, a buff taper plate cooperable with the wedge to take up slack during draft loads, and an elastomeric pad which acts between the buff taper plate and a backing surface to maintain slack adjustment during draft loads and to provide resilient cushioning support during a pitching force or buff load. The assembly is applicable to drawbar couplers and to articulated connectors.
Abstract: A striker assembly for end-of-car hydraulic cushioning devices includes a housing which is connected to the shank of the coupler. The coupler shank is provided with an elongated slot which is connected to a transversely extending key carried in key supporting slots provided in vertical side walls of the housing. The key has a pair of transversely spaced notches which are engaged by vertical retaining pins supported within the housing. One of the retaining pins is movable outwardly from the housing which thereupon permits the key to be removed through one of the key supporting slots whereby the coupler is readily removable.
Abstract: The invention relates to a rapid transit draft rigging for an automatic coupler which includes a yoke, disposed within a drawbar, which has a stem abutment extending inwardly from the rear of the yoke, passing through a shear block release member and contacting the rear surface of a follower block which is adjacent a cushioning member.
Abstract: A reversible warehouse wagon is provided with a jointed bed, tandem-mounted center support wheels, steerable wheels supporting both the ends of the bed and hitch means at both ends of the bed to provide a warehouse wagon that is towable from either end having a short turning radius, high directional stability, improved tracking of a towing vehicle and improved support and control for going up and down ramps.
Abstract: The keyslot of a railway coupler shank is modified to eliminate the interference between the coupler shank and draft key during conditions of buff or draft during vertical curve negotiation of the cars when traversing uneven track. The upper and lower walls of the keyslot diverge from the rear bearing surface of the keyslot adjacent the butt of the coupler shank. Thus the keyslot opening is wider in the front portion than at the rear portion.