Section R. 408.12311 - Definitions; SRule 2311.
(1) "Safety block" means a prop that, when inserted between the upper and lower dies or, in absence of a die, between bolster plate and face of the slide, prevents the slide or upper die from falling of its own dead weight.(2) "Secondary operation" means a press operation in which a preworked part is further processed. This operation includes forming, drawing, and coining.(3) "Semiautomatic feeding" means placing or removing material or parts within the point of operation, by an auxiliary device, controlled by an operator at each stroke of the press slide.(4) "Slide" means the main reciprocating press member (also called the ram, plunger, or platen).(5) "Slide lock device" means a positive mechanical lock or block capable of preventing the slide from closing of its own dead weight.(6) "Stripper" means a device for removing the material or part from the punch.(7) "Sweep device" means a single or double arm attached to the slide or upper die of the press, which moves the hands of an operator from within the point of operation as the slide or upper die descends.Mich. Admin. Code R. 408.12311