Emhart Industries, Inc.

Steven G Merz

Rene Keller

Carl W Schmitt

In the closing action of the mould, pulses are produced which represent the movement of a mould portion in the closing action. The number of pulses produced between a fixed position and the mould closed position is counted and compared with the greatest number of pulses previously counted for the corresponding movement. If the two numbers differ by a predetermined number, a stop signal is produced which presents further closing actions of the mould.

Apparatus for monitoring the closing action of a mould of a glassware

The method is for monitoring the movement of a member which is moved along a path which has a vertical component and an arcuate component about a vertical axis. The movement is brought about by a piston movable in a cylinder and having a piston rod projecting therefrom on which the member is mounted. A cam which engages a cam track is mounted on the piston rod or a further piston rod of the piston and acts to cause the arcuate movement. The method comprises mounting a proximity detector on the cam track to sense the piston rod, connecting the proximity detector to a contactless connector so that signals are passed from the mechanism to a transmitter of the connector mounted on the machine frame, and comparing signals received by the transmitter with signals indicating the stage reached in the cycle of operation.

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Thalwil, Switzerland

Steven G Merz