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1. A device which counterbalances the original load in elevators and skip and mine hoists, going up when the load goes down, so that the engine must only drive against the unbalanced load and overcome friction. 2. Any weight placed on a mechanism which is out of balance so as to maintain static equilibrium. Also known as counterbalance; counterpoise.

Related Terms

RESTRICTOR

A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.

SAFETY CONTROL

Device to stop unit, equipment or system if unsafe pressure and/or temperatures and/or dangerous conditions are reached.

AIR COOLER

A factory-encased assembly of elements whereby the temperature of air passing through the device is reduced.

FILTER ELEMENT

The porous device that performs the actual process of filtration. Also known as Cartridge

COMPRESSOR

A device which converts mechanical force and motion into pneumatic flow power.

CROWN

The top of the piston in an internal combustion engine above the fire ring, exposed to direct flame impingement.

REFRIGERATOR

A device to transfer heat from a low temperature to a high temperature medium.

DEPOSITS

Oil-insoluble materials that result from oxidation and decomposition of lube oil and contamination from external sources and engine blow-by. These can settle out on machine or engine parts. Examples are sludge, varnish, lacquer and carbon.

AIR BREATHER

A device permitting air movement between atmosphere and the component in/ on which it is installed.

AIR CONDITIONER

A refrigeration device cooling or heating air.
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