Full Title

Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body (F16P5/00 takes precedence) > with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine (F16P3/08 takes precedence) > the means being photocells or other devices sensitive without mechanical contact