Calibration adjustment for gauge instruments
AssigneeDresser Industries, Inc.
InventorsRichard H. Wetterhorn, William S. Kosh
Life of this patent
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Abstract
An elongated actuator pin in a pressure gauge extends from a fixed end to a free end to interact with the amplifier for enabling pivotal motion thereof to translate Bourdon displacement to an output pointer. A clamp slideably mounted on the actuator pin is operatively effective when set at a selected location along the pin length to variably offset the free end of the pin from its longitudinal axis for obtaining correct calibration adjustment of the gauge.
Claims11
In a gauge instrument including a Bourdon tube, an amplifier adapted to transmit displacement motion of the Bourdon tube to an output drive and an elongated actuator pin extending from between a first end secured to a support and a second end interacting with the amplifier for enabling operational motion of the amplifier in response to displacement changes incurred by the Bourdon tube, calibration apparatus comprising clamp means mounted on said actuator pin intermediate its ends and settable for imposing a controlled bend in said pin offsetting the second end thereof from a plane of the unbent pin thereat.
Dependencies are inferred from the claim text.