| 摘要 |
730,291. Vehicle wheels. WILBORN, J. C. April 15, 1952, No. 9440/52. Class 144 (1). A vehicle wheel is automatically balanced when in operation by means of members, such as lead or steel shot 20, freely movable in a confining circumferential channel 12 forming part of the wheel. As shown, the channel 12 may be formed in the base of the rim 10, being covered by a band 14 which is provided with a closure-plug 16 through which the shot is fed into the channel. The channel may also contain a liquid 18, such as ethylene glycol, the viscosity of which is substantially unaffected by temperature changes.
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