Mechanical Definitions |
Jolt Molding : A technique of shaping refractory blocks
in which a mold that contains prepared batch is jolted mechanically
to consolidate the material. |
Jordan : It is a machine which is designed to refine
paper pulp through a rotating cone with cutters. |
Journal : It is a section of a shaft or crank which contacts
and turns in a bearing. |
Journal Box : It is a metal housing for journal and its
bearing. |
Journal Friction : The friction of an axle in a journal
bearing which arises mainly from viscous sliding friction between
journal and lubricant. |
Jump : The process used to shorten and thicken a piece
of metal by hammering on the end of a bar. It is used in forgings.
|
Jump Spark : It is a spark which is produced by electricity
jumping across a fixed gap, between the joints of a spark plug
for example. |
Junction Box : It is a container for electrical junctions.
Usually it is intended to conceal them from sight and to some
extent to eliminate tampering. It can be made of a metal or
plastic. |
Junkers Engine : It is a double-opposed-piston and two-cycle
internal combustion engine with intake and exhaust ports at
opposite ends of the cylinder. |
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