US Patent: 511,736
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Attachment forBboring-Mills
Taper Attachment and Feed Mechanism for Vertical Boring Mill
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Patentee:
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| Charles Leon Libby (exact or similar names) - Bridgeport, Fairfield County, CT |
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Patent Dates:
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| Applied: |
Dec. 05, 1892 |
| Granted: |
Dec. 26, 1893 |
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Joel Havens
Vintage Machinery entry for Bullard Machine Tool Co.
Vintage Machinery entry for Bridgeport Machine Tool Works
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Description: |
| Claim:
In a boring mill or machine of like character, the combination with a properly supported crossrail, of uprights arranged upon either end, a taper attachment guide pivotally supported above said crossrail at one end to one of said uprights, while the other is made adjustable so as to be secured to the other of said uprights in an angular position with respect to the cross rail as desired. |
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