Mating piece for opening and closing valve of fire hydrant, with special shaped head on end of controlling rod

The mating piece on a fire hydrant is used for opening and closing the valve. It consists of a rod (21) controlling the valve. It is provided with an actuating element (20) designed to cooperate with a square ended key. The actuating elements consist of two or more flat surfaces (22,23) able to rest...

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Bibliographische Detailangaben
Hauptverfasser:	FORTOUL ROGER, POUEY JEROME
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER LIGHTING MECHANICAL ENGINEERING SEWERAGE TAPS THERMAL INSULATION IN GENERAL VALVES WATER SUPPLY WEAPONS
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Beschreibung
Zusammenfassung:	The mating piece on a fire hydrant is used for opening and closing the valve. It consists of a rod (21) controlling the valve. It is provided with an actuating element (20) designed to cooperate with a square ended key. The actuating elements consist of two or more flat surfaces (22,23) able to rest against the internal faces of the square ended key. The other part of the joining surface (25) is designed so that it does not offer purchase by a tool other than the correct square ended key. Dispositif d'ouverture-fermeture de robinet, notamment de robinet de borne d'incendie, comprenant une tige (21) commandant une vanne et pourvue d'un élément d'actionnement (20) destiné à coopérer avec une clef carrée, caractérisé en ce que ledit élément d'actionnement comprend au plus deux surfaces planes (22, 23) susceptibles de reposer contre les faces internes de ladite clef carrée. La surface de raccordement (25) entre les deux surfaces planes est conformée pour ne pas offrir de prise à un outil autre qu'une clef carrée. L'invention évite la manoeuvre du robinet par un utilisateur ne disposant pas d'une telle clef.