center plate — Railroads. one of a pair of plates that fit together and support the body of a car on a truck, while allowing the truck to rotate with respect to the body. One plate (body center plate) is attached to the underside of the car body and the other… … Useful english dictionary
body center plate — Railroads. See under center plate. * * * … Universalium
truck center plate. — See under center plate. * * * … Universalium
body center plate — Railroads. See under center plate … Useful english dictionary
truck center plate. — See under center plate … Useful english dictionary
center pin — Railroads. a cylindrical device passing through the center plates of both the body bolster and the truck bolster, permitting the truck to swivel beneath the car body while the stress is taken by the center plate. [1795 1805] * * * … Universalium
center pin — Railroads. a cylindrical device passing through the center plates of both the body bolster and the truck bolster, permitting the truck to swivel beneath the car body while the stress is taken by the center plate. [1795 1805] … Useful english dictionary
Center of balance — (COB) is a point with respect to which the object in question is balanced with respect to applied forces. In particular areas the term may have specific meaning and special discussion, and may refer to one of the following*Center of mass, the… … Wikipedia
Plate detector (radio) — A plate detector is a vacuum tube detector circuit used in A.M. radios. This circuit employs a tube with an indirectly heated cathode, typically a medium mu triode, or a tetrode or pentode with a sharp cut off control grid. Rectification of R.F.… … Wikipedia
Plate number coil — A plate number coil (PNC) is a United States postage stamp with the number of the printing plate or plates printed on it. The plate number typically appears as one or more small digits in the margin at the bottom of the stamp. The plate number… … Wikipedia