.~ Safety-stop or non-operating interlock between supply and conveyers
(under subclass 129) Apparatus in which (1) two or more portions of the apparatus having distinct functions each have the regulating elements therefor so arranged as to require one element to assume a desired position simultaneously or in proper sequence with the positioning of another element, whereby the operation of one part is directly dependent upon the correct positioning of the regulated element of another part, this arrangement being something other than or in addition to the normal operating mechanism of the parts, or (2) some nonautomatic mechanism is so arranged as to prevent operation of parts or all of the machine when such operation would (a) endanger the person of an operator or (b) injure some part of the machine.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97, for filling systems having a guard or screen for the operator.
156+, for filling systems having successive receivers supplied thereto where the filling operation is triggered by the presence of a plurality of receivers.
346+, for other interlocks in filling systems.
SEE OR SEARCH CLASS
53, Package Making,
77, for interrelated or safety control in packaging machines.
63, for presses not elsewhere provided for which have interrelated or safety controls.