Mechanical Definitions |
Hard Hat : It is a type of helmet having metal crown.
It is used by construction workers and miners for safety. |
Harding feeder-weigher : It is a pivoted short belt conveyor
which can control the rate of material flow from a hopper by
weight per cubic foot. |
Hardinge Mill : It is a tricone type of ball mill. It
has a flattish cone at feed end followed by a cylindrical drum
finishing with a steep cone leading to the discharge end. |
Hardinge Thickener : It is a machine used to remove maximum
amount of liquid from a mixture of liquid. Finally it divides
solids by allowing the solids to settle out on the bottom as
sludge while the liquid over flows at the top. |
Hardness : It is a property of an installation, facility,
transmission link or equipment which prevents an unacceptable
level of damage. |
Hardness Number : A number that represents the relative
hardness of a mineral, metal or other material determined by
any of more than 30 different hardness tests. |
Hardness Test : A test that determines the relative hardness
of a mineral, metal or other material according to one of several
scales such as Brinell, Vicker, Shore or Moths. |
Hardwood Bearing : It is a fluid-film bearing that is
made of lignum vitae which has a natural gum. It also can be
made of hard maple which is impregnated with oil, grease or
wax. |
Hardy Plankton Indicator : It is a metal-shrouded net
which is designed for collecting specimens of plankton during
normal passage of a ship. |
Hare's Hydrometer : It is a type of hydrometer in which
the ratio of the densities of two liquids are determined. The
densities are determined by measuring the heights to which they
rise in two vertical glass tubes, connected at their upper ends
when section is applied. |
Harmonic Speed Changer : It is a mechanical-drive system
which is used to transmit rotary, linear or angular motion at
high ratios and with positive motion. |
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