US Patent: 1,669,423
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| Boring tool
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Patentee:
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| Carl H. Schmidgall (exact or similar names) - Peoria, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 15, 1927 |
| Granted: |
May 15, 1928 |
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Patent Pictures:
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Jeff Joslin
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Description: |
| This patented machine was seen at Ripley's Believe It or Not Odditorium in Gatlinburg, TN. This invention consists of a vertical drill press was arranged with two milling cutters above the bit, the two cutters mounted on one horizontal shaft. The bit creates a mortise with rounded corners and the milling cutters squares off the corners. The machine looks to be capable of rapidly cutting clean-edged mortises but the machine would be expensive to manufacture and difficult to use for different size holes. See also patent 1,297,740. |
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