US Patent: 477,737
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Slotting Machine
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Patentee:
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Leslie H. Colburn (exact or similar names) - Toledo, OH |
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Patent Dates:
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Applied: |
May 27, 1891 |
Granted: |
Jun. 28, 1892 |
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 improvements in slotting-machines, which have a vertically operating reciprocating cutter for making the slot. The objects of my invention are, first, to afford facilities for making a perfectly-straight cut in the metal to be operated upon, and this is accomplished by affording improved facilities for supporting the cutter-bar; second, to construct a machine that can be used on articles having a great range in their external diameters, and upon articles such as pulleys and gearing, where their arms and rims are in the way of connecting mechanism for supporting the opposite extremities of the cutter-bar; third, to provide improved mechanism for regulating the length, depth, and taper of the cut to be taken; fourth, to provide a device for radially locating the slot in the bore of the work to be operated upon.
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