US Patent: 781,572
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| Traction Wheel
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Patentee:
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| Marquis J. Todd (exact or similar names) - Buffalo, Erie County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 21, 1904 |
| Granted: |
Jan. 31, 1905 |
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Joel Havens
"Vintage Machinery" entry for Buffalo Pitts Co.
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Description: |
| Abstract:
It is well known that with a broad traction-wheel all the weight of the engine is thrown upon the inner edge, resulting in cutting shoulders, which destroy the road-bed, and allowing only a very small portion of the pulling power of a lug to come in full contact with the road when the latter is crowned.
Claim:
In combination with a traction-wheel having a solid rim, a series of lugs secured on the rim and hearing against the face thereof, each lug having two sets of biting edges, one set being normally projected beyond the plane of the other set, such lug presenting a broad fiat contact-surface when under maximum weight, one set of biting edges being then wholly within the plane of the other set. |
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