Apparatus for operating a pressure gauge or the like

Details Apparatus for operating a pressure gauge or the like Apparatus for operating a pressure gauge or the like

1976-01-13

1976-12-21

Woodiel, Donald O.

Signals and indicators

Bells

Gong type

73407R, 74210, G09F 900

Patent

active

039981797

ABSTRACT:
A mechanism for operating an instrument such as, for example, a gauge primarily for measuring pressure having a diaphragm the opposite faces of which are subject to a pressure differential so that the center moves in response to such differential. The diaphragm movement is transmitted to an array of bar magnets that moves in a substantially rectilinear translative movement in response to diaphragm movement. A rotary magnet spaced from the path of movement of the array of bar magnets and within the composite magnetic field produced by the array rotates as the array is translated, the angular rotation being a predetermined mathematical or empirical function of the amount of translation and built into the array. The mathematical function is achieved by proper choice of magnet dimensions and placement thereof relative to one another. Rotation of the rotor is used to drive a pointer indicator over a scale to indicate pressure. The invention resides primarily in the transductive mechanism and the novel transmission of the movement to a rotor for driving the said pointer indicator.

REFERENCES:
patent: 2201836 (1940-05-01), McCure

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