Patent ID: 8376727

Claim:
A dough moulder including: a housing having rollers and an access opening through which the rollers are manually accessed by an operator when the operator deposits dough onto the rollers; a guard fixed in position relative to the access opening, the guard providing the operator a fixed point of reference during deposition of the dough onto the rollers, the guard being adjacent the access opening; a space above the guard and access opening in which the operator's arm moves; and a detector positioned above the access opening and defining a detector space within the space above the guard and access opening, the detector including one or more pairs of beam emitters and receivers forming a light curtain which extends across the access opening, the pairs of beam emitters and receivers being positioned to permit the hand of the operator to enter the access opening without deactivating the rollers for placing material onto the rollers, and the detector being operable to interrupt the operation of the rollers when the operator's arm is detected in the detector space.