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Development of Large Ice Saws
Authors: Garfield DE
Year: 1976
Keywords: CR 76-47, chain saws, cutting tools, ice, lock walls, Sault Ste. Marie, Michigan, ship passage
Periodical/Journal: CRREL Report 76-47
Abstract: The report describes two mechanical ice-cutting systems of the removal of ice collars at the high pool level on the Poe Lock of the St. Mary's Falls Canal at Sault Ste. Marie, Michigan. Once system was a narrow-kerf (3 ¼ -in. wide) coal-cutting chain saw mounted on a bar, driven by a 65-hp wheeled soil trencher which cut a 0.56-in wide kerf. The lumber-cutting saw's bar was too flexible and the desired cutting traverse speed was not met. The coal-cutting saw cut 6-ft-deep ice collars at traverse speeds of up to 10 ft/min and acceptable. With a few modifications, the coal-cutting saw would be operational.
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