Belt grinder for sharpening ice skate blades and the like
OwnerRobert H. Chiassoninventor
Life of this patent
Estimating the term…
Abstract
A belt grinding apparatus is provided for obtaining maximum wear from an abrasive belt. The apparatus is particularly useful in sharpening skate blades and the like and involves a motor-driven belt arrangement in which the belt is passed over an idler pulley for guidance diagonally across the working edge of a relatively fixed platen whereby a diagonal section of the running belt substantially wider than the width of the belt is presented for grinding action against a workpiece. A movable carriage clamp is provided to hold the skate blade in grinding position and move it in a straight line against the diagonally moving belt. The platen is mounted for adjustment to accommodate skate blades of different thicknesses.
Claims6
Apparatus for grinding a workpiece such as a skate blade or the like, comprising
- (a) an elongated and relatively straight platen;
- (b) at least a pair of pulleys spaced from one another;
- (c) power means drivingly connected to at least one of said pulleys;
- (d) an endless abrasive belt looped about said pulleys in driving engagement therewith and against said platen;
- (e) said pulleys disposed to guide said belt diagonally with respect to the length of said platen whereby a diagonal section of said belt will be presented at said platen to said workpiece;
- (f) said platen being a shaft which rotatably supports a sleeve having a plurality of differently contoured working faces moveable into and out of working engagement with said belt;
- and
- (g) a housing having a generally flat, straight bed extending parallel to said platen and a workpiece holder adapted to be moved along said bed to carry said workpiece lengthwise against that diagonal portion of said belt moving over said platen.
Dependencies are inferred from the claim text.