Security barrier endless drive loop lock

Tension applied to the endless loop, such as chain loop 18, when a person applies an opening force to the bars of a security grill driven by the chain, forces the guide 22 to slide upwards against the bias 26 to allow the lock sprocket 14 to engage the chain and prevent movement of the chain and sec...

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Bibliographische Detailangaben
Hauptverfasser:	COHEN-RAVID, MOSHE, LANE, JOHN ALEXANDER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONVEYING DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HEATING LADDERS LIGHTING MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING THERMAL INSULATION IN GENERAL TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Tension applied to the endless loop, such as chain loop 18, when a person applies an opening force to the bars of a security grill driven by the chain, forces the guide 22 to slide upwards against the bias 26 to allow the lock sprocket 14 to engage the chain and prevent movement of the chain and security grill.