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7416261 |
The quick-change adjustable track center front hub assembly is secured to a spindle axle of a sprint car by a friction drive bearing system located between the spindle axle and the front hub assembly. The bearings are spaced apart to pro...
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5839795 |
A variable outer diameter wheel includes a generally cylindrical pipe or drum having four equally spaced penetrating holes or receiving parts in the cylindrical wall, a diaphragm sealing member corresponding to each of the penetrating ho...
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4178042 |
Agricultural tractors having variable-track wheels for working in different conditions, particularly in row-crops, are known. The track-width of their driving wheels has sometimes been made power-adjustable by fixing brackets having resp...
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4046339 |
An auxiliary landing gear for an aircraft including a pair of auxiliary wheels mounted from the wings and including an exterior rim composed of segments connected to a hub by expansible members whereby expansion from a collapsed inoperat...
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4023511 |
An improved seed planting roller for planting seeds in individual holes in the ground, and having means for reclosing the hole over the planted seed. Also, means are shown for altering the circumference of the roller for adjustment of pl...
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3998258 |
An expandable tire rim arrangement is disclosed including a transversely split tire supporting rim having an outer peripheral tire engaging surface, an inner peripheral surface, and relatively circumferentially movable ends disposable be...
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3802743 |
A wheeled vehicle is provided with a plurality of wheels, each wheel being provided with separately actuatable means for varying the diameter between two fixed values, one small, the other large. Through the use of separately adjustable ...
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