Abstract ABSTRACT OF THE DISCLOSURE There is disclosed an ice-skate blade in which the portion of the ice-engaging surface of the blade which is inter- mediate the sharpened side edges of the blade, is polished to a mirror-finish, in order to decrease the friction between the blade and the ice. To polish this intermediate surface with conventional polishing compounds, a felt disc is used. A width- reducing device is used to taper the marginal portion of the disc to the width required to sharpen only the central surface of the blade and not the side edges. This device comprises an assembly of blocks, or braces, forming a V-shape slot with the inclined surfaces lined with abrasive material to receive the marginal portion of the felt disc which is reduced in width while rotated in said slot.
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED, ARE DEFINED AS FOLLOWS: 1. An ice-skate blade having an ice-engaging edge surface including a central surface portion intermediate side edge surface portions, said side edge surface portions being sharpened and said intermediate surface portion being polished to a mirror-finish.
Claim 2
Dependent Claim
17 words
An ice-skate as claimed in claim 1, wherein said central surface portion has a concave cross-sectional shape.
Claim 3
Dependent Claim
15 words
An ice-skate as claimed in claim 1, wherein said central surface portion is transversely flat.
Claim 4
Independent Claim
34 words
A method of treating the ice-engaging surface of an ice-skate blade comprising polishing to substantially a mirror-finish the portion of said ice-engaging surface which is intermediate the sharpened side edges of said ice-engaging surface.
Claim 5
Independent Claim
41 words
A method of treating the ground-engaging surface portion of an ice-blade comprising first grinding said surface with grinding material, so as to obtain sharpened edge portions and then polishing to a mirror-finish the surface portion inter- mediate said sharpened edge portions.
Claim 6
Dependent Claim
36 words
A method as claimed in claim 4, wherein said polishing step is carried out in two successive stages: first by using a relatively coarse grain polishing compound; and second by using a finer grain polishing compound.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.