Portable multi-purpose rail grinding machine
AssigneeMatweld, Inc.
InventorsRalph F. Story, Johnny D. Burnett
Life of this patent
Estimating the term…
Abstract
A portable multi-purpose rail grinding machine for grinding field welds, switch points and frogs, including a hydraulically driven grinder with a disk-shaped stone adjustably mounted on a frame for setting the grinding stone between horizontal and vertical positions, an adjustable rail assembly including a hook-shaped guide member and a flanged wheel guide member, one of which may be selectively chosen to guide movement along a rail, and adjustably positionable handlebars for allowing the operator to control and manipulate the grinder from an ergonomic upright position.
Claims18
A portable upstanding rail grinding machine for grinding field welds connecting two rail sections, each of which includes a head, a web, and a base, switch points, and frogs, comprising:
- a frame,
- a motorized grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- a rail guide assembly for guiding the machine along a rail and including at least one rail engaging guide member,
- said frame including a receiver for adjustably receiving said rail guide assembly to dispose said rail-engaging guide member in position to guide the machine along a rail,
- handlebars carried by the frame and extending upwardly for gripping by an operator standing in a substantially upright position to move the machine along a rail, and
- trigger means on the handlebars for selectively operating the motorized grinder,
- whereby said grinding machine with the grinder in generally horizontal position is capable of grinding that part of the field weld below the head of the rail while the operator is standing in a substantially upright position.
A portable upstanding rail grinding machine for grinding field welds, switch points, and frogs, comprising;
- a frame,
- a hydraulically driven grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- an adjustable rail guide assembly carried by the frame for guiding movement of the machine along a rail and including a hook-shaped rail engaging member and a flanged wheel rail engaging member,
- a pair of handlebars carried on the frame and positionable for gripping by an operator standing in a substantially upright position, and
- trigger means on one of the handlebars for actuation by the operator to selectively operate the hydraulically driven grinder.
A portable upstanding rail grinding machine for grinding field welds, switch points, and frogs, comprising:
- a frame,
- a hydraulically driven grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- a rail guide assembly for guiding movement of the machine,
- said rail guide assembly including a plurality of rail-engaging members extending from a mounting bar,
- said frame including at least one receiver for adjustably receiving said mounting bar to dispose one rail-engaging member in position to serve as a guide for the frame,
- a pair of handlebars carried on the frame and positionable for gripping by an operator standing in a substantially upright position, and
- trigger means on one of the handlebars for actuation by the operator to selectively operate the hydraulically driven grinder.
A portable upstanding rail grinding machine for grinding field welds, switch points, and frogs, comprising:
- a frame,
- a motorized grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- an adjustable rail guide assembly carried by the frame for guiding the machine along a rail and including at least one rail engaging guide member,
- handlebars carried by the frame and extending upward for gripping by an operator standing in a substantially upright position,
- means for adjustably mounting the handlebars on the frame which permits changes in the elevation of the handlebars relative to the frame and changes in the angular relation between the handlebars and the frame to provide ergonomic operation and to facilitate compact storage of the machine, and
- trigger means on the handlebars for selectively operating the motorized grinder.
A portable upstanding rail grinding machine for grinding field welds, switch points, and frogs, comprising:
- a frame,
- a motorized grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- an adjustable rail guide assembly carried by the frame for guiding the machine along a rail and including at least one rail engaging guide member,
- said rail-engaging member is hook-shaped,
- handlebars carried by the frame and extending upward for gripping by an operator standing in a substantially upright position, and
- trigger means on the handlebars for selectively operating the motorized grinder.
A portable upstanding rail grinding machine for grinding field welds, switch points, and frogs, comprising:
- a frame,
- a motorized grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- an adjustable rail guide assembly carried by the frame for guiding the machine along the rails and including a plurality of rail-engaging members,
- one of said rail-engaging members is in the form of a hook and the other is in the form of a flanged wheel,
- handlebars carried by the frame and extending upward for gripping by an operator standing in a substantially upright position, and
- trigger means on the handlebars for selectively operating the motorized grinder.
A portable upstanding rail grinding machine for grinding entire field welds connecting end-to-end rail sections, wherein the rail sections include a head, a web and a base, said machine comprising:
- a frame,
- a motorized grinder having a disk-shaped grinding stone,
- means mounting the grinder on the frame for adjustably setting the stone between horizontal and vertical positions and therebetween,
- a rail guide assembly for guiding the machine along a rail and including at least one rail engaging guide member,
- said frame including means for adjustably receiving said rail guide assembly to dispose said rail engaging guide member in position to guide the machine along a rail,
- handlebars carried by the frame and extending upwardly for gripping by an operator standing in a substantially upright position to move the machine along a rail, and
- control means for selectively operating the motorized grinder,
- whereby said grinding machine with the grinder in generally horizontal position is capable of grinding that part of the field weld below the head of the rail while the operator is standing in a substantially upright position.
Dependencies are inferred from the claim text.