Mechanical Definitions |
Grinding Ratio : The ratio of the volume of ground material
removed from the workpiece to the volume which is removed from
the grinding wheel. |
Grit Chamber : A chamber which removes sand, gravel or
other heavy solids that have subsiding velocities or specific
gravities substantially greater than those of the organic solids
in waste water. |
Grommet : A metal washer or eyelet is a metal, plastic,
or rubber ring which is inserted into a hole made through another
material. It is soaked in a packing material and used under
bolt and nut heads to preserve tightness. |
Grooving Saw : It is a circular saw which is used to
cut grooves. |
Ground Controller : An Aircraft controller who directs
aircraft on the ground and in the air. |
Grouser : It is a temporary pile or a heavy iron-shod
pole which is driven into the bottom of a stream to hold a drilling
or dredging boat or other floating object in position. |
Grout Curtain : It is a row of vertically drilled holes
filled with grout under pressure to form the cutoff wall under
a dam. It is also used to form a barrier around an excavation
through which water cannot seep or flow. |
Grout Hole : It is one of the holes in a grout curtain.
Any hole into which grout is forced under pressure to consolidate
the surrounding earth or rock formation. |
Grout Pipe : It is a pipe which transports grout under
pressure for injection into a grout hole or a rock formation.
|
Gudgeon : Same as gudgeon, wrist pin or piston pin. It
is a circular fitting often made of metal which is fixed onto
some surface. A gudgeon pin is used to join the small end of
a connecting rod to a piston or crosshead in engines. |
Guide Bearing : It is a plain bearing which is used to
guide a machine element in its lengthwise motion, usually without
rotation of the element. On the casing, it carries the seating
for its attachment in the borehole of the gear box. |
Guide Pin : A pin is called Guide Pin which is used to
line up die or a tool with the work. |
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