US Patent: 1,341,934
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| Tool Holder
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Patentee:
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| Gustav C. Schoenborn (exact or similar names) - Detroit, Wayne County, MI |
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Patent Dates:
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| Applied: |
Apr. 23, 1919 |
| Granted: |
Jun. 01, 1920 |
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Patent Pictures:
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Joel Havens
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Description: |
| Patented in Canada, patent #CA-216,497.
Claim:
In a tool holder, the combination of an open-ended barrel provided with a pair of balls movable in and out of perforations in the barrel, and a movable sleeve on the barrel having portions to hold the balls projected into the barrel and portions to allow the balls to retreat from the interior of the barrel, the said balls being arranged in a diametrically opposite position to allow the tool shank to pivot thereon and having sufficient clearance, when the shank is in place and the sleeve is turned to hold the balls projected to their limit toward the shank, to allow limited universal movement of the tool shank in the barrel. |
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