Displaceable Chock Patents (Class 104/257)
  • Patent number: 9259655
    Abstract: An anti-rollback apparatus includes a lock arm, a rod, a pawl, a wheel, and a one-way bearing. The rod member is pivotably coupled to the lock arm and the pawl and one-way bearing are coupled to the rod member. The pawl is shaped to selectively engage teeth on a an anti-rollback plate. The wheel is configured to roll on a surface of the anti-rollback plate. The one-way bearing couples the wheel to the pawl. The one-way bearing allows the wheel to rotate freely in a first direction and locks the wheel in relation to the pawl when the wheel rotates in a second direction to force the pawl to engage the teeth.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: February 16, 2016
    Assignee: S&S Worldwide, Inc.
    Inventors: Todd Snyder, Mike Worley, Quin Checketts
  • Publication number: 20150007743
    Abstract: Devices, a system and a method for controlling travel of a railcar along a set of rails are provided, the railcar having wheel treads that ride on the rails. A railcar stop is selectively movable between a first position wherein the railcar is free to travel along the rails, and a second position wherein the railcar stop is configured to engage the tread of the at least one of the wheels to thereby stop and prevent travel of the railcar in at least a first direction along the rails. The railcar stop is further configured to he selectively movable in the first direction along the rails from the second position to a third position to thereby disengage the railcar stop from the tread of the least one of the wheels.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Applicant: AAA Sales & Engineering, Inc.
    Inventors: Kurtis James Opelt, Neal W. Becker, Gene Z. Gokhman
  • Patent number: 8485106
    Abstract: A device for stopping rail cards includes an articulated member adapted to move between a first raised position in which ait receives a rail car wheel in contacting or abutting relationship to cause effective stopping of the car, and a second retracted position which offers no resistance to movement of the car wheels. A hydraulic or pneumatic ram is provided to move the articulated member between the two positions.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: July 16, 2013
    Assignee: Argent Industrial Limited
    Inventor: Cornelius Johannes Thyssen, Jr.
  • Publication number: 20120055368
    Abstract: A device and system for controlling travel of a railcar along a set of rails is provided. In one example, a railcar stop is coupled to the set of rails and is selectively movable between a first position wherein the railcar is free to travel along the set of rails and a second position wherein the railcar stop engages the treads of the wheels to thereby prevent travel of the railcar in at least one direction along the rails.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Applicant: AAA Sales & Engineering, Inc.
    Inventors: Thomas J. Heyden, Gregory P. Reitz, John A. Hooper, Lowell B. Ziese, Jim Thomas
  • Patent number: 6308638
    Abstract: A wheel stop for an overhead rail vehicle includes a wheel block assembly pivotably fastened to a clamping assembly. The wheel block assembly is provided with an actuator connector positioned such that a downward force on the wheel block assembly tends to move the wheel block assembly from a wheel-engaging position to a retracted position. An actuating assembly permits an operator to actuate a lift rod for moving the wheel block assembly from a ground location. Shock absorbing elements on the wheel stop prevent damage. The actuating assembly is provided with apertures for receiving a padlock to prevent tampering.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: October 30, 2001
    Assignee: Western-Cullen-Hayes, Inc.
    Inventor: Ronald Pease
  • Patent number: 5417486
    Abstract: A brake wedge for rail-mounted cabinets which allows the movement of the cabinets to be automatically or manually prevented. The cabinet includes a number of wheels which are guided by floor-supported rails. The brake wedge has a curved profile and is operably connected to an actuating mechanism. The wedges are positioned adjacent each wheel of the cabinet and slightly above the rails. When the actuating mechanism is engaged by an object, one or more of the brake wedges are forced toward the wheels, causing the curved profile of the brake wedges to frictionally engage the wheels and thereby prevent further rotational movement of the wheel. A spring biases the actuating mechanism to an outward or normal position. The actuating mechanism, which defines an outer surface or portion of the base section, is preferably at or slightly above floor level and is thereby engaged and operated by virtually any object on the floor, such as a box or a person's foot.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: May 23, 1995
    Inventor: James Manlove
  • Patent number: 5408934
    Abstract: An electrically non-conductive wheel chock for restraining the movement of a wheel which contains a body, an arm attached to the body extending outwardly and upwardly from the body, and a device for preventing the movement of the wheel check upon the rail. The top portion of the wheel chock body contains a first ramp, a top deck, and a second ramp. The bottom portion of the wheel chock body contains a downwardly-extending leg and an arcuate surface joined to the leg. The body has a compressive modulus of at least about 400,000 pounds per square inch.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: April 25, 1995
    Inventor: Thomas Hall
  • Patent number: 4886285
    Abstract: Underneath a load, on both sides, there are several transporter frames with transporter blocks for wheels. The wheels travel on tracks or rails, on which they are guided with wheel flanges or guide rollers. Each transporter frame has a vertical, U-shaped transporter frame foot, with a pivot shaft for the transporter block, which on the side opposite the pivot shaft has a support plate for the rounded head of a piston of a hydraulic cylinder. Each hydraulic cylinder is supported with its rounded head in a support bearing under the transporter frame. All the hydraulic cylinders of a series are connected by a connecting line and a check valve with a pump.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: December 12, 1989
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Rainer Horbach, Hermann Osthoff
  • Patent number: 4526499
    Abstract: An improved rail lock for the meat transportation industry has a pair of legs which extend below the rail. The inner surface of one of the legs is substantially flush against a side of the rail. A first clamping means is carried by the other leg and bears against the other side of the rail, thereby exerting a force tending to spread the legs apart. A second clamping means is carried by the one leg, just below the rail, and exerts a counterforce tending to bring the legs together. As a result, the rail lock is rigidly retained on the rail and will not vibrate loose during transportation, thereby solving a vexatious problem in the meat industry.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: July 2, 1985
    Inventor: Vincent P. Bonolis
  • Patent number: 4498561
    Abstract: A retractable wheel chock assembly for railway wagons comprises the combination of a wheel chock (12) designed to act on the flange of a wagon wheel, and a friction brake (36) attached to the wheel chock and sliding along a guide rail (3) mounted just outside the railway track (4) on which the wagon is running. The wheel chock (12) is at one end of a cantilever arm (10) that can be swung out over the railway track or inwardly over the guide rail. Both the cantilever arm and the friction brake are mounted on a carriage (1) that is movable longitudinally of the guide rail, and a linkage between the arm and the brake ensures that the brake is actuated in response to the reaction force of the wagon wheel on the wheel chock. The wheel chock may be extended over the railway track, advanced along the track into abutment with a wagon wheel and braked, all in a single operative movement.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: February 12, 1985
    Assignee: Godwin Warren Engineering Limited
    Inventor: Maurice R. Sanders
  • Patent number: 4480723
    Abstract: In a retarder system for railway wagons, a retarder device which includes a rotatable cylinder resiliently urged into a working position adjacent a rail and provided with a flange with a helical contact surface. The flange of a railway wagon wheel which passes in a working or first direction influences the contact surface of the cylinder to set the cylinder rotating thereby pumping a hydraulic medium through a throttled opening to obtain a braking action. The cylinder is provided with an elongated projection arranged parallel to the axis of the cylinder, which extends radially from the cylinder and is directed, in a position of readiness of the cylinder, substantially towards the rail.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: November 6, 1984
    Assignee: AB Hagglund & Soner
    Inventors: Hakan Ingvast, Bo Karlsson
  • Patent number: 3944174
    Abstract: A wheel crowder for mounting on a rail opposite a conventional derail for cooperation with the latter whereby the wheel crowder engages a wheel of a railcar or locomotive and forces the same toward the derail thereby assuring that the opposite wheel will move into the throat or entering toe of the derail and permit proper operation of the latter.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: March 16, 1976
    Assignee: Federal Sign and Signal Corporation
    Inventor: Leo E. Flinn
  • Patent number: 3938629
    Abstract: A railway track brake comprising a series of segments connected together in pairs and installed transversely between the rails of the track, each segment including a top beam with a shaft rotatably installed inside the top beam and provided at its ends with projecting arms carrying contact rollers for engagement with the wheels of the vehicle to be braked. The top beam is rotated with the shaft when the vehicle wheels contact the rollers and rotate the arms. The top beam is connected to a bottom beam which is linearly displaceable by means of a crank and a connecting rod. The bottom beam is connected to an energy absorbing device including a strip having a friction lining in contact with rotatable rolls. The bottom beams of each pair of segments are interconnected by a double-arm lever such that the bottom beams move in opposite directions.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: February 17, 1976
    Assignee: Centralny Osrodek Badan i Rozwoju Techniki Kolejnictwa
    Inventors: Leszek Marszalek, Tadeusz Lorenc, Andrzej Hodbod