Press control system

A press control system in which multiple pushbuttons are employed for initiating a press cycle with each pushbutton including a normally closed and a normally open blade and with each switch blade having connected in parallel therewith a monitoring circuit which produces logic signals in conformity...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FORTMAN, RONALD F, STEWART, WILLIAM J, OLDING, MICHAEL J
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING RELAYS SAFETY DEVICES IN GENERAL SELECTORS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A press control system in which multiple pushbuttons are employed for initiating a press cycle with each pushbutton including a normally closed and a normally open blade and with each switch blade having connected in parallel therewith a monitoring circuit which produces logic signals in conformity with the position of the respective switch blade. A logic circuit analyzes the logic signals from the several monitoring circuits and permits operation of the press only when all of the switches operate properly during a press cycle.