US PATENT SUBCLASS 305 / 150
.~ Vertically movable endwheel

Current as of: June, 1999
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305 /   HD   WHEEL SUBSTITUTES FOR LAND VEHICLES

143  DF  WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE ENDWHEEL {7}
150.~ Vertically movable endwheel

DEFINITION

Classification: 305/150

Vertically movable end wheel:

(under subclass 143) Apparatus wherein the adjustable distal wheel is secured in various positions not parallel to the direction of travel. [figure] [caption]A - Rear of truck; B - Axle; C - End wheel; D - Endless belt; E - Cleat or projection; F, G - Chain made of links. NOTE: End wheel moves vertically (shown by dotted line)