US Patent: 2,051,618
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| Block for Sectional Grinding Wheels
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Patentee:
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| Frank C. Penny (exact or similar names) - Trumbull, Fairfield County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 16, 1934 |
| Granted: |
Aug. 18, 1936 |
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Joel Havens
"Vintage Machinery" entry for Bridgeport Safety Emery Wheel Co.
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Description: |
| Abstract:
This invention relates to new and useful improvement in blocks for sectional grinding wheels of the type shown in patents to Hyde, Numbers 1,133,475 and 1,589,855 of March 30, 1915, and June 22 1926, respectively.
An object of the invention is to provide an improved construction of shoe for the blocks of a sectional grinding wheel. More specific objects of the invention are to provide a shoe for a block of a sectional grinding wheel and which shoe is light in weight and comprises a minimum of metal and may be manufactured at low cost whereby it need not be returned to the factory for refilling when the abrasive block is worn down.
Additional objects are to provide a shoe as indicated and which is so constructed as to be firmly attached to the block to which it is moulded, and which does not materially detract from the cross section of the block in its shearing zone, and which provides means whereby a marker plug may be moulded directly into the abrasive block on its inner end
Claims:
1. In a block for a sectional grinding wheel, a metal shoe, a block of abrasive material moulded onto said shoe, said shoe comprising a frame like structure open at both the front and back sides thereof comprising a body having inner peripheral edges about the opening in the back and outer peripheral edges about the outside of the frame, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining inwardly of the body away from the outer flange and having its rear wall inclined outwardly toward the rear surface of the body.
2. In a shoe for a block of a sectional grinding wheel, a frame-like structure open ,at the front and rear comprising a body having inner peripheral edges about the opening through the back and outer peripheral edges about the outside of the frame, a rib extending across the body and connecting a pair of portions thereof, .said rib having a tapped opening therein, a forwardly projecting flange at the outer edge of said body, a flange at the inner edge of the body and at each side of said rib and inclining forwardly of peripheral edges about; the opening through the back and outer peripheral edges about the outside of the frame, a forwardly extending flange at the inner edge of said body, said flange inclining in a direction away from the outer edge of the body, and the rear wall of said flange being inclined outwardly from its free edge.
4. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining away from the outer flange, the inner surface of said outer flange being inclined outwardly whereby the flange is thinnest at its forward edge, and the rear wall of said inner flange being inclined rearwardly in the opposite direction.
5. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, inner and outer forwardly projecting flanges on said body at said edges, said inner flange inclining away from the outer flange, the inner surface of said outer flange inclined outwardly whereby it is thinnest at its forward edge, said inner flange extending about the inner edge of said body and having a rear. wall inclined outwardly and rearwardly from its inner edge.
6. In a shoe for a block of a sectional grinding wheel, a frame-like structure comprising a body open at the front and rear having inner and outer peripheral edges, a rib extending across the body and connecting a pair of portions thereof, said rib having a tapped opening there through, a forwardly projecting flange at the outer edge of said body, a flange at the inner edge of the body extending forwardly and inclining away from the outer flange, with its rear wall inclined outwardly and extending to the rear surface of the body.
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