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Priority to ES0029380UpriorityCriticalpatent/ES29380Y/en
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Publication of ES29380YpublicationCriticalpatent/ES29380Y/en
Device for the measurement of small gaseous pressures, consisting essentially of a slightly conical vertical tube, with smaller diameter in the lower part, inside which a piece of light material, visible from the outside, can be displaced, which presents on its lateral surface a helical grooving, whose piece, of diameter substantially equal to that of the tube in its lower part, when driven by the pressurized gas that is introduced by this smaller base of the frustoconical tube, is forced to rotate and ascend inside the same, a graduated scale being shown on the surface or wall of said tube as a function of the pressures, which will be indicated by the height in each case acquired by the inner moving part. (Machine-translation by Google Translate, not legally binding)
ES0029380U1951-12-151951-12-15
Device for the measurement of small gaseous pressures
ExpiredES29380Y
(en)