AUTOMATIC CUT-OFF DEVICE FOR GAS PASSAGE

PURPOSE:To precisely close a gas passage making use of vibration by freely bearing the shaft rod on whose upper part a weight is fitted and fixed on a spherical seat at the end of a bearing plate, and bringing the lower end of the rod into contact with the upper surface of a projection on a rotary p...

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Bibliographic Details
Main Author KUBO OSAMU
Format Patent
LanguageEnglish
Published 29.09.1986
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PURPOSE:To precisely close a gas passage making use of vibration by freely bearing the shaft rod on whose upper part a weight is fitted and fixed on a spherical seat at the end of a bearing plate, and bringing the lower end of the rod into contact with the upper surface of a projection on a rotary plate. CONSTITUTION:The upper end of the valve rod 4 of a gas passage closing valve 3 is pivotally mounted on the one end of the laterally long rotary plate 2 whose middle part is pivotally mounted on a bearing plate 1. A spherical portion 8 on the lower part of the shaft rod 7 on whose upper part a weight 6 is fitted and fixed is freely beared on the spherical seat of a bearing projection 1' at the end of a bearing plate. The lower end of the rod 7 is brought into contact with the upper surface of the other end projection 2' on the rotary plate 2 and supported on it. When an automatic cut-off device is subjected to vibration, the rod 7 vibrates, and its lower end gets out of the projection 2'. Thus a spring 5 functions to cause a valve 3 to cut off a gas passage through a valve rod 4.
Bibliography:Application Number: JP19850058969