Mining or in situ disintegration of hard material – Ice-working devices
Patent
1981-01-05
1983-02-08
Purser, Ernest R.
Mining or in situ disintegration of hard material
Ice-working devices
172782, 172815, E01H 512
Patent
active
043726178
ABSTRACT:
An edging apparatus for an ice resurfacing machine includes a guide operatively attaching to one of the side edges of the machine which is capable of being extended from the side of the machine such that it can contact an upright surface as, for example, a rink wall or a dasher board extending around the perimeter of an ice rink. Associated with the guide is an ice shaving blade which is capable of extending in a vertical direction upwards and downwards between a shaving position wherein it can contact the ice surface and shave the surface and a non-shaving position wherein it is lifted upwards from the ice surface. The guide is interposed between the end of the edge of the blade and the dasher board or the rink wall such that it is impossible to catch the end of the blade in the wall or dasher board yet it is possible to correctly position the end of this blade very close to the wall or dasher board allowing shaving of the ice surface to a point almost immediately adjacent to the wall or dasher board. The apparatus includes appropriately connecting members allowing for pivotally connecting the guide and ice blade to the machine such that they can be extended away from the side edge of the machine during edging but retracted back to the machine during other operations of the machine.
REFERENCES:
patent: 1466464 (1923-08-01), Beatty
patent: 2763939 (1956-09-01), Zamboni
patent: 3231991 (1966-02-01), Wandscheer et al.
patent: 3479755 (1969-11-01), Schropp
patent: 4208812 (1980-06-01), Brownly
Zamboni Company Literature, 2 pages.
Boswell K. H.
Frank J. Zamboni & Co.
O'Brian Edward D.
Purser Ernest R.
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