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1. 发明专利

GB816073A Improvements in and relating to aneroid barometers 未知
公开(公告)号：GB816073A
公开(公告)日：1959-07-08
申请号：GB2687356
申请日：1956-09-03
申请人： MECHANISM LTD
发明人： GRANDIDGE JOHN EVERARD
IPC分类号： G01L9/00
摘要： 816,073. Pressure gauges. MECHANISM Ltd. Sept. 3, 1957 [Sept. 3, 1956], No. 26873/56. Class 106 (2). A pressure-gauge comprises a pressuresensitive capsule 1, a spring-loaded contactcarrying member 5 displaceable by the capsule 1, a micrometer 16 carrying a contact 13, and an electronic circuit, not shown, incorporating a cathode-ray tuning indicator of the type having a fluorescent anode, the making and breaking of the contacts 8, 13 sharply varying the pattern viewed. on the screen of the cathode-ray indicator. The micrometer 16 is graduated in millibars and is used to adjust the position of contact 13 relatively to the contact 8 carried by the spring-loaded lever 5. The apparatus is enclosed in a casing 20 provided with a window for viewing the screen and with a nipple 18 for connection to a pressure source. In operation, the micrometer 16 is adjusted as required until the pattern viewed on the screen is just on the point of changing, and the pressure read from the graduations on the micrometer. For calibration, the nipple 18 is connected to a source at a standard pressure, but in normal use it is left unconnected, thus equalizing the pressure inside the casing 20 with the ambient atmospheric pressure. Excessive expansion of the capsules 1 is prevented by a plate 22 secured to the casing 20.

2. 发明专利

GB1012708A An instrument for measuring rate of change of one variable with respect to another variable 未知
公开(公告)号：GB1012708A
公开(公告)日：1965-12-08
申请号：GB1765363
申请日：1963-05-03
申请人： MECHANISM LTD
发明人： GRANDIDGE JOHN EVERARD
IPC分类号： G01L11/00 , G01P3/62
摘要： 1,012,708. Indicating-apparatus. MECHANISM Ltd. June 25, 1964 [May 3,1963], No. 17653/63. Heading G1J. Apparatus for measuring the rate of change of one variable with respect to another comprises a drum 16 rotating at a constant speed, a lever 12 moved about its pivot 13 in response to the pressure in a capsule 10, a castor roller 15 pivotally connected to the lever 12 and contacting the drum 16 so that as the lever 12 moves the castor 15 longitudinally of the drum 16 the castor will pivot and move a pointer 20 against a scale 21 to indicate the rate of change of the pressure with respect to time. The castor roller 15 is rotatably mounted in a frame 14 pivoted on the lever 12 and the castor action is obtained by offsetting either the pivotal axis or the drum axis from alignment with the roller axis and can be increased if none are aligned. The drum 16 could be replaced by an endless belt or by a toroid. The pointer 20 may be adapted to record and may be included in a control warning system of apparatus being monitored.

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