B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/123
B02C 18/28 (2006.01) B02C 18/14 (2006.01)
Patent
CA 2007915
SPRING-LOADED TEETH FOR COMMINUTER ROLLS Abstract of the Disclosure A tooth for use in a comminuter roll comprises a roll of spring steel having a first end formed into a point or other abrading shape. The tooth is compressed upon insertion into a mounting hole in the roll and the inherent spring of the steel tends to force the tooth back to its original size, thereby creating forces on the interior of the mounting hole to form an interference fit that holds the tooth in place in the mounting hole. In a preferred embodiment, the tooth is formed of a roll of spring steel having a G-shaped cross section. This shape provides an open- ing through the length of the tooth and also leaves a solid piece in the center of the tooth to aid in tooth removal. A rod can be slipped through the lengthwise opening of the first tooth so that its end abuts the solid center portion of thesecond tooth that is colinearly mounted in the other end of the hole that the first tooth is mounted in. Tapping the rod will force the second tooth out of its holewithout disturbing the first tooth. The steel piece can be cut either before or after rolling to form suitable abrading ends on the teeth and a back end of the tooth can be chamfered to make the tooth easier to insert in the hole of the roll.
Com Corp Inc.
Hughes John H.
Smart & Biggar
LandOfFree
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