Sidney Broadbent
Engineers at Quarles Dr, Littleton, CO

4109419, Aug 29, 1978

Jan 12, 1977

5/758567

Sidney Broadbent - Littleton CO

B24B 904

51 94R

A lightweight transversely pivoting and longitudinally sliding skate carriage exhibiting exceptionally low friction, introduces a high degree of sensitivity into the process of skate sharpening, facilitating very light grinding cuts and low uniform traversing speeds, enabling a relatively unskilled operator to produce superlative surface finishes and accurately maintain the blade "rocker" profile. The carriage pivotal axis is so located and the skate blade so positioned that the "hollow grind" is accurately centralized throughout the length of the blade. The low friction, pivotal provision enables the blade to be held in sensitive contact with the cutting wheel controlling the depth of cut, while the longitudinal sliding provision permits sensitive control of rate of cutting lengthwise along the skate blade. The skate carriage is readily removable and being lightweight facilitates inspection of the blade surface during the course of sharpening. The longitudinal profile or rocker of the blade may be controlled by mounting a template to the carriage parallel to the longitudinal axis, which engages a stationary roller throughout the course of longitudinal travel, thereby replicating the template profile onto the blade during the sharpening operation.

7547022, Jun 16, 2009

Jan 5, 2007

11/650179

Sidney Broadbent - Littleton CO, US

A63C 1/00

280 1118, 280 1112, 280809

Skate and blade assemblies () include a mechanism for the removal of the drag tooth () to facilitate replication, during sharpening, of the skating surface's () rocker profile throughout its entire length. With primary emphasis in avoiding not only the inevitable progressive degradation of the frontal portion of the skating surface but actual profile mutilation because of the projecting drag tooth. Such mutilation commonplace with large diameter grinding wheel types of sharpeners adversely affects a skater's performance, ruining a career opportunity and inevitably an expensive pair of figure skates. The primary component of the mechanism is an attachable-detachable toe-pick element () preferably including all or most teeth required of the toe-pick including the drag tooth. Exacting docking provisions (-) are provided for the toe-pick element () with the skate structure () or blade (). A preferred embodiment adopts a bolted method of fastening wherein a bolt member () assembles through a hole () in the skate structure () engages a threaded cam locking member () the cam portion () of which engages hole () in a flange () portion of the toe-pick element ().