Ceramic conveyor rolls with metal end caps frictionally fixed thereto
AssigneePPG Industries, Inc.
InventorsHenry P. Hanneken, William H. Marriott, Jr.
Life of this patent
Estimating the term…
Abstract
A ceramic roll for transporting glass sheets for thermal treatment is drivingly connected to a drive shaft through a metal end cap circumferentially grooved to receive a hard rubber O-ring that provides frictional engagement between the metal end cap and an end of the ceramic roll. The metal end cap is constructed and arranged to facilitate its mounting on and removal from the end of the ceramic roll.
Claims8
A glass conveyor roll of ceramic composition having an axially elongated, substantially cylindrical shape including an intermediate portion of round cross-section for conveying glass sheets for thermal treatment, shafts located in alignment with the ends of said roll, and means for drivingly connecting at least one of said shafts to said roll, said means comprising a metal end cap including a metal cylindrical member rotatable with one of said shafts and having an inner surface in circumferential engagement with said roll at an end portion thereof, a circumferential groove in said inner surface of said metal cylindrical member and an O-ring of elastomeric material received within said groove in position to provide a frictional force sufficient to transmit a torque from said one of said shafts through said metal cylindrical member to said ceramic roll without undue wear of said roll, O-ring or said metal cylindrical member.
Dependencies are inferred from the claim text.