C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
198/8
C03B 35/00 (2006.01) B65G 13/02 (2006.01) B65G 39/02 (2006.01) C03B 35/16 (2006.01) C03B 35/18 (2006.01)
Patent
CA 1109015
Abstract A rotatable roll for conveying glass sheets during thermal treatment comprising a frangible ceramic roll of cylindrical configuration engaged in compression stress between a pair of metal spindles, one of which is coupled to drive means for rotation and both of which spindles are provided with heads approximately coextensive in cross-section with the end surfaces of the frangible ceramic roll. The interfacial surfaces between the end surfaces of the rolls and the heads of the spindles are provided with friction material. The other of said pair of metal spindles is biased in compression to apply axial compression stress to the ceramic roll while the latter rotates in unison with the spindles. A method of using a conveyor comprising at least some of said ceramic rolls for the thermal treatment of glass sheets is also described.
321883
Gowling Lafleur Henderson Llp
Ppg Industries Inc.
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