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Sharpener: iceskate blades, iceboat and bobsled runners

Image Number 3 for United States Patent #5916018.

A small hand-held device for shaping and sharpening of the ice-contact surfaces of skate blades and blade-type runners of bobsleds and iceboats. The sharpener has two means for guiding blades in its sharpening section: a) a fixed, non-adjustable slot in the body, or b) adjustable guide bars in a sheet-metal or a solid-material body model. The sharpener can also include a centering device for exact centering of the radiused abrader with the center of the skate blade regardless of the sharpening wear of the abrader.

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