B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
198/8
B65G 13/02 (2006.01) B21B 31/08 (2006.01) F27D 3/02 (2006.01) B21B 1/46 (2006.01) B21B 39/12 (2006.01)
Patent
CA 1322542
ABSTRACT OF THE DISCLOSURE There is provided a roller apparatus for use in a metallic workpiece heating furnace or the like, the apparatus serving to guide and convey the workpieces through the furnace while at the same time avoiding localized cooling of the workpieces during heating thereof. The apparatus comprising an elongated arbor formed of two concentric tubes having internal openings for coolant extending in the axial direction of the arbor. The arbor further has secured there around a series of spaced wheel-like workpiece supporting structures each including hub members having toe portions welded to the outer concentric tube and head portions which are free to slide relative to the outer concentric tube. Positioned along the outer concentric tube between and outside of the wheel-like workpiece supporting structures are packets of parallel abutting ring or disc members formed of thermally insulating material. The roller apparatus deflects under the weight of the workpiece supported thereon so as to permit the apparatus to assume a catenary shape to positively guide the workpieces in their passage through the furnace.
615566
Bricmont Inc.
Macrae & Co.
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