Mechanical Definitions |
Grab Dredger : Dredging equipment comprising a grab or
grab bucket that is suspended from the job held of a crane.
|
Gradall : It is a hydraulic backhoe(excavator) which is equipped
with an extensible boom. It is used to excavate, backfill and
grade. |
Gradienter : It is an attachment which is placed on a
surveyor's transit to measure angle of inclination in terms
of the tangent of the angle. |
Grate : It is made of closely spaced bars. It is a support
for burning solid fuels while allowing combustion air to rise
up the fuel from beneath and ashes to fall away from the burning
fuel. |
Gravel Pump : A pump used to pump a mixture of gravel
and water and it is a centrifugal pump with renewable impellers
and lining. |
Gravity Chute : It is a gravity conveyor in the form
of an inclined plane, trough or framework which depends on sliding
friction to control the rate of descent. |
Gravity Conveyor : It is an unpowered conveyor such as
a gravity chute or a roller conveyor that uses the force of
gravity to move materials over a downward path. |
Gravity Cover : A type of cover which achieves bottom
penetration slowly as a result of gravitational force acting
upon mass. |
Gravity Prospecting : The process of identifying and
mapping the distribution of rock mass of different specific
gravity by means of a gravity meter. |
Grease Gun : It is a small device which pumps grease
under pressure into bearings. It is used to apply lubricant
to a specific point through an aperture. |
Grease Seal : It is a type of seal which is used on floating
pistons of some hydro pneumatic recoil systems to prevent leakage
past the piston of gas or oil. It is also used in cylinders
of some hydro pneumatic equilibrators. It is used to retain grease
in a case or housing as on an axle shaft. |
Grid-rectification Meter : It is a type of vacuum-tube
voltmeter in which the grid and cathode of a tube act as a diode
rectifier, and the rectified grid voltage, amplified by the
tube, operates a meter in the plate circuit. |
Grinder : It is a machine which grinds such as a pulverizer
or a grinding wheel. |
Grinding Mill : It is designed to break solid materials
into small pieces. It consist a cylindrical drum where the material
is fed into. |
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