Development of Non-Circular Gears in the Printing Industry.

The applications considered in this paper are drawn from the field of proven printing machinery enjoying a reputation of satisfactory performance oar a period of years. The specific items considered are sheeters, sheet slow down mechanisms, sheet transfers, and flat bed press drives. Comparisons are made between noncircular gear mechanisms and more conventional devices used to achieve analogous results. From these comparisons an insight can be gained as to when noncircular gears can be profitably enjoyed. The technical aspect of noncircular gear design and production is considered only to a limited extent since this subject has received detailed attention from other authors.