.~.~ Using frictional retarder (e.g., strap, disc, drum, etc.)
DEFINITION
Classification: 400/340
Using frictional retarder (e.g., strap, disc, drum, etc.):
(under subclass 337) Subject matter wherein said movement of the carriage* is controlled by a regulator that utilizes the motion of two surfaces in close contact with each other, and the consequent resistance to such motion due to the close contact, as a means to control the velocity of the carriage.
(1) Note. Among the various structures used as friction retarder or friction brake means are: a drum, a disc, a helically wrapped spring, a strap, etc., any of which cooperate with a surface moving relatively thereto for causing a frictional retarding force to be generated.
