US Patent: 2,543,151
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| Combination Plug and Agitator Crank
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Patentee:
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| Henry L. Cerniak (exact or similar names) - Chicago, IL |
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Patent Dates:
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| Applied: |
Jul. 28, 1948 |
| Granted: |
Feb. 27, 1951 |
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Patent Pictures:
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1 | 2
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Henry L. Cerniak Pat. Feb. 27, 1951 |
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Stan Schulz
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Description: |
| The tool looks exactly like the patent drawing; it is marked "PAT. 254151" and "ONLY USE WRENCH TO OPEN OR CLOSE." Some include the manufacturer name "NATIONAL STEEL CONTAINER CORP."
This tool was used to operate an internal agitator in metal drums used to ship liquid mixtures that would settle or separate during shipment and storage, and to seal the opening providing access to the agitator shaft. |
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