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US 4,070,798 AGranted
Polishing wheels
OwnerJean Emaininventor
Life of this patent
Estimating the term…
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OwnerJean Emaininventor
Estimating the term…
A polishing wheel is provided which comprises a circular rotatable body, a plurality of spaced apart rigid support members provided on the periphery of the rotatable body, a layer of resilient material provided on the periphery of each said support member and a strip covered with abrasive material supported on each layer of resilient material. The abrasive strip is secured on the support member by means for regulating the tension of said strip. A plurality of cylindrical members may be provided for retaining the ends of the strips between said cylindrical members and the inner side of the support member, each said cylindrical member being mounted eccentrically in a bore in the circular rotatable body and being locked by a screw. Alternatively, the abrasive strip may be continuous and form a sleeve engaged on the support member and on a cylindrical member mounted eccentrically on the body.
A polishing wheel comprising a circular rotatable body, a plurality of spaced apart rigid support members provided on the periphery of the rotatable body, a layer of resilient materials provided on the periphery of each said support member and a strip covered with abrasive material supported on each layer of resilient material, the abrasive strip being secured on the support member by means for regulating the tension of said strip, the abrasive strip being an endless abrasive strip which is retained between the downstream end of the support member and a first cylindrical member mounted eccentrically on the body of the polishing wheel, said endless abrasive strip being engaged on a second eccentric cylindrical member and being retained by resilient means.
A polishing wheel comprising a circular rotatable body, a plurality of spaced apart rigid support members provided on the periphery of the rotatable body, a layer of resilient material provided on the periphery of each said support member and a strip covered with abrasive material supported on each layer of resilient material, the abrasive strip being secured on the support member by means for regulating the tension of said strip, comprising a plurality of cylindrical members for retaining the ends of the strips between said cylindrical members and the inner side of the support member, each said cylindrical member being mounted eccentrically in a bore in the circular rotatable body and being locked by a screw and in which one end of the strip is secured between an eccentric cylindrical member and the downstream end of the support member, whereas the other end of the strip is fixed on a shaft on which it is wound, said shaft being rotatable in the body and being subject to the tension of a resilient member bearing on one side against the body of the wheel and on the other side against a cap integral with said shaft and comprising a knurled knob.
A polishing wheel comprising a circular rotatable body, a plurality of spaced apart rigid support members provided on the periphery of the rotatable body, a layer of resilient material provided on the periphery of each said support member and a strip covered with abrasive material supported on each layer of resilient material, the abrasive strip being secured on the support member by means for regulating the tension of said strip, in which a central magazine is mounted to rotate on the body, the magazine having wound thereon abrasive strips which rest on the respective supports and are wound at the upstream end on shafts located on the periphery of the magazine and mounted to rotate on the body, said shafts being subjected to braking means constituted by a resilient member bearing on the one hand against the body and on the other hand against a knurled knob.
Dependencies are inferred from the claim text.