US PATENT SUBCLASS 476 / 18
.~ Variable speed in forward or reverse

Current as of: June, 1999
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476 /   HD   FRICTION GEAR TRANSMISSION SYSTEMS OR COMPONENTS

15  DF  FORWARD AND REVERSE {4}
18.~ Variable speed in forward or reverse {4}
19  DF  .~.~> With toothed gears in drive train
20  DF  .~.~> Stepped ratio change
21  DF  .~.~> Intermediate idler between input and output gears {2}
24  DF  .~.~> Driving and driven gears on perpendicular axes

DEFINITION

Classification: 476/18

Variable speed in forward or reverse:

(under subclass 15) Subject matter wherein means are provided to change the rotational velocity of said output body in either said clockwise or counterclockwise direction. [figure] [caption] The parts, when arranged as shown in the figure, thereby disclose the device as it will appear when working on a reduced speed in a forward direction. The driven member 10 may be retracted and then be advanced, having been moved laterally, until the head 6 of the driving member 1 coacts with the track 15. If the smaller end of the head 6 coacts with the track 15, then the parts are connected for a low speed drive in a reverse direction

SEE OR SEARCH THIS CLASS, SUBCLASS:

47+, and 59+, for variable speed friction gearing wherein a reversing feature may be disclosed but not claimed.