Importance

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Abstract

An electronic monitor for cyclic machines senses an electrical signal at the beginning or end of each cycle of operation of a machine, using a sensor such as a momentary-contact electrical switch or a proximity sensor, counts the time elapsed between such signals corresponding to a complete cycle of the machine and utilizes that time, via a microprocessor, and preset signals representative of various known or desired machine conditions, such as the number of pieces produced/completed during each machine cycle, the number of pieces desired to be produced, and the like, and based upon calculations that are pre-programmed into an internal microprocessor, generates a visual and/or audible display of selected desired information such as: actual elapsed machine running time since the start of the current cycle, the actual number of pieces produced since the start of a current operation, the number of pieces remaining to be produced during the current operation, the time required to produce the number of pieces not yet produced, and related information of the type that should be known for appropriate control of machine operations.

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First Claim