An instrument for measuring azimuths, particularly a device which fits over a central pivot in the glass cover of a magnetic compass.
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RESTRICTOR
A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.
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SAFETY CONTROL
Device to stop unit, equipment or system if unsafe pressure and/or temperatures and/or dangerous conditions are reached.
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AIR COOLER
A factory-encased assembly of elements whereby the temperature of air passing through the device is reduced.
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FILTER ELEMENT
The porous device that performs the actual process of filtration. Also known as Cartridge
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AMMETER
An instrument for measuring the magnitude of electric current flow.
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COMPRESSOR
A device which converts mechanical force and motion into pneumatic flow power.
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HYDROMETER
An instrument for determining either the specific gravity of a liquid or the API gravity.
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ARMATURE DEMAGNETIZATION
The reduction in the effective magnetic lines of force, produced by the armature current.
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REFRIGERATOR
A device to transfer heat from a low temperature to a high temperature medium.
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AIR BREATHER
A device permitting air movement between atmosphere and the component in/ on which it is installed.
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