US Patent: 2,211,039
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| Thread Cutting Tool Holder
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Patentee:
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| Sebastian J. Welter (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 09, 1939 |
| Granted: |
Aug. 13, 1940 |
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Joel Havens
Armstrong Brothers Tool Co. history
"Vintage Machinery" entry for Armstrong Brothers Tool Co.
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Description: |
| Parker, Carlson, Pitzner & Hubbard - patent attorneys
The invention relates to thread cutting tool holders adapted for use in lathes and other metal working machines. The object of the present invention is to provide a new and improved holder for a thread cutting tool which will avoid any objectionable tendency to tear the material of the blank being cut, and which will provide a clean smooth cut so as to obtain an accurate and finished thread.
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