US Patent: 599,054
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| Machine for Cutting Slots
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Patentee:
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| Leslie H. Colburn (exact or similar names) - Toledo, Lucas County, OH |
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Patent Dates:
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| Applied: |
Dec. 07, 1894 |
| Granted: |
Feb. 15, 1898 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Baker Brothers
"Vintage Machinery" entry for Colburn Machine Tool Co.
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Description: |
| My invention relates to an improved machine for cutting slots of various shapes and sizes, principally in articles where the cut must be made internally, such as cutting key-ways in pulley-hubs, forming the teeth of internal gears, and performing other analogous operations and is especially designed as an improvement upon a slotting-machine for which United States Letters Patent were granted to me June 28, 1892, and numbered 477,737. The present invention has for its objects, first, a novel arrangement and construction of the lower guide-bar; second, an improved construction of the upper arm for supporting the cutter-bar; third, an improved method of supporting the back of the cutter-bar and cutter, the table being in any desired angular position and the said support being accurately maintained adjacent to the top surface of the table automatically; fourth, to provide means for accurately centering the work upon the table; fifth, to provide, in combination with other features, mechanism for moving the work to be operated upon in a lateral, transverse, and circular direction; sixth, to provide means for securing an angular adjusting-table in a fixed position with respect to the cutter-bar. |
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