Assembly for cooling the teeth of the cutting head and the...

E - Fixed Constructions – 21 – C

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E21C 25/06 (2006.01) A63C 9/00 (2006.01) A63C 9/081 (2006.01) A63C 9/086 (2006.01) E21C 25/16 (2006.01)

Patent

CA 1106414

ABSTRACT OF THE DISCLOSURE Assembly for cooling rock cutting teeth and the rock face during a cutting action and wherein the cutting heads carrying the teeth rotate about a horizontal axis. Spray nozzles are pro- vided on jib arms carrying the cutting heads and are directed to supply cooling water to selected areas during cutting.

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