B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/11, 241/26
B63B 35/12 (2006.01) E01C 23/12 (2006.01) E01H 5/12 (2006.01) E02B 17/00 (2006.01)
Patent
CA 1072350
METHOD OF AND APPARATUS FOR BREAKING BRITTLE MATTER ABSTRACT OF THE DISCLOSURE An ice breaking system comprising a multiplicity of aligned and successively longer sledging teeth outwardly extending from a rotatable drum. The drum rotation allows the successively longer teeth to sequentially cut and chip deepening grooves in various forms of brittle matter, such as ice or coal, engaged by the system. A second form of slugging tooth, outwardly ex- tending from the drum, is provided in generally central alignment between paired rows of sledging teeth. The slugging tooth is positioned to subsequently engage the isolated, ridged sections of ice between successive grooves therein, and for striking said ridges with sufficient force to impart shear fracture thereto. The drum is provided with a plurality of sledging and slugging teeth in staggered groups comprising a spiral configuration along the drum. In this manner the system is particularly adapted for se- quentially breaking engaged ice floes in a vertically descending direction for permitting the broken sections thereof to be carried freely upward by the buoyant force of the water therebeneath.
290147
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