Plate mounted grinding wheel
AssigneeNorton Company
InventorsWilliam L. Bouchard, Charles W. Sudol, Keith E. Wing, Sr.
Life of this patent
Estimating the term…
Abstract
A grinding device is disclosed which is particularly suited for grinding railroad tracks. The device is made up of back plate attached to a grinding wheel which is in turn attached to a grinding machine by way of a spindle. The surface of the plate which makes contact with the grinding wheel contains at least two lugs and at least two bolt holes pass through the plate. The lugs on the plate mate with correspondingly shaped depressions or indentations in the side surface of the wheel which contacts the plate and threaded nuts molded in the wheel line up with the bolt holes in the plates and bolts passed therethrough keep the two parts together.
Claims12
A grinding wheel made up of abrasive grain and a bond therefore, said wheel having a lower side surface and an upper side surface, said wheel being adapted to grind on its lower side surface with said upper side surface being attachable to a wheel mounting plate, wherein the improvement comprises:
- an upper section and a lower section, said lower section constituting a grinding section composed of abrasive grain and a bond therefore, said upper section being composed of particles that are selected from the class consisting of particles that are less abrasive and finer in particle size than the abrasive grain in said lower section, and wherein at least two threaded nuts and at least two depressions of substantial radial dimension are molded into the upper section, said threaded nuts being means for attaching said grinding wheel by bolts which pass through the wheel mounting plate, and said depressions being a means for driving the wheel by mating with matching lugs on the wheel mounting plate.
Dependencies are inferred from the claim text.