.~.~.~ Biased for movement in one direction, e.g., by gravity, spring, etc.
DEFINITION
Classification: 248/665
Biased for movement in one direction e.g., by gravity, spring, etc.:
(under subclass 664) Structure comprising means providing a force for urging the machine for movement in one direction.
(1) Note. Included are devices wherein the machine is mounted with its center of gravity eccentric to an axis whereby the weight of the machine provides the force, as well as devices comprising a separate means such as a spring or an additional eccentric weight.