Conveyor pulley

A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system, to drive the belt, and to tension the belt. Modern pulleys are made of rolled shells with flexible end disks and locking assemblies. Early pulley engineering was developed by Josef Sitzwohl^[1] in Australia in 1948 and later by Helmuth Lange^[2] and Walter Schmoltzi^[3] in Germany.

^ Sitzwohl, Josef Maria (August 1948). Welded Conveyor Pulleys - Analysis of Stresses in Pulley Shell (Thesis). St. Kilda, Melbourne, Victoria, Australia. ISBN 978-0-9884365-0-3.
^ Lange, Helmut (1963). (Ph.D. thesis). Leibniz University Hannover. {{cite thesis}}: Missing or empty |title= (help)^{[full citation needed]}
^ Schmoltzi, W. (1974). Designing Drums with Transverse Shafts for Belt Conveyors (Doctorate in Engineering thesis). Hannover, Germany: TU Hannover.

[Sitzwohl-1] Sitzwohl, Josef Maria (August 1948). Welded Conveyor Pulleys - Analysis of Stresses in Pulley Shell (Thesis). St. Kilda, Melbourne, Victoria, Australia. ISBN 978-0-9884365-0-3.

[Lange-2] Lange, Helmut (1963). (Ph.D. thesis). Leibniz University Hannover. {{cite thesis}}: Missing or empty |title= (help)^{[full citation needed]}

[Schmoltzi-3] Schmoltzi, W. (1974). Designing Drums with Transverse Shafts for Belt Conveyors (Doctorate in Engineering thesis). Hannover, Germany: TU Hannover.

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