US PATENT SUBCLASS 474 / 78
.~ Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

69  DF  CONTROL FOR VARIABLE INPUT TO OUTPUT SPEED-RATIO {7}
78.~ Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter {2}
79  DF  .~.~> And pulley pivotally mounted to facilitate belt shift
80  DF  .~.~> And including belt-shifter mechanism {2}

DEFINITION

Classification: 474/78

Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter:

(under subclass 69) Subject matter including a pulley* or plural coaxial pulleys mounted for rotation about an axis, said pulley or pulleys providing separate axially spaced belt* drive faces located different radial distances from the rotational axis; and further including a belt* mounted for movement in a direction parallel to the longitudinal extent of the rotational axis to permit selective placement of the belt on one or another of the separate axially spaced drive faces on the pulley or pulleys. [figure]