US Patent: 2,309,241
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| Dividing Head
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Patentee:
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| Frank W. Curtis (exact or similar names) - Springfield, Hampden County, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 04, 1941 |
| Granted: |
Jan. 26, 1943 |
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Joel Havens
"Vintage Machinery" entry for Van Norman Machine Tool Co.
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Description: |
| Claim:
In a dividing head, a body, a spindle mounted in the body for rotation about a longitudinal axis, trunnions on the body having a common axis transverse to the longitudinal axis, a base, saddles on the base one for each trunnion and having a semicircular bearing surface for the trunnions, cap members one for each saddle and having semicircular bearing surfaces complementary to the bearing surfaces of the saddles, means to draw each cap and saddle member toward each other to lock the trunnion against rotation Comprising at abutting surfaces formed, at one end of each saddle and cap, means to hold said surfaces together, flat abutting surfaces on he opposite end of said cap and saddle, the last mentioned abutting surface on the saddle comprising a fiat step formed near the outer edge of he saddle and supporting the flat abutting surface of the cap at its outer edge, a relieved portion extending from the step inwardly to the saddle bearing surface, and means located between said step and inner bearing surface for adjustment to draw said cap and saddle towards each other. |
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