Under ice crawler

Details Under ice crawler Under ice crawler

B - Operations, Transporting

25

B

254/31

B25B 25/00 (2006.01) A01K 69/00 (2006.01) A01K 74/00 (2006.01)

Patent

CA 1217471

UNDER ICE CRAWLER ABSTRACT OF THE DISCLOSURE A crawler for drawing a rope from a hole in lake or river ice under the ice. The crawler includes a structure for stopping, fixing its horizontal location and generating a sound which can be heard above the ice whereby its location can be determined. A second hole can then be drilled in the ice between the crawler and the first hole and the rope can be hooked and drawn out with the crawler. The rope can then be used as a "fish" for deployment of a net under the ice for winter fishing. The crawler is made up of a float, a pair of skids above the float, a motor driven propeller, a switch operated by a jerk of the rope and a clapper for generating a knocking sound by repetitive jerking of the rope. When the crawler is pulled backwards slightly, a pick is deployed by friction with the ice for fixing its horizontal position.

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