US Patent: 326,520
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| Lubricator
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Patentee:
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| James Powell (exact or similar names) - Cincinnati, OH |
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Patent Dates:
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| Applied: |
Apr. 23, 1885 |
| Granted: |
Sep. 15, 1885 |
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Patent Pictures:
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1 | 2
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Joel Havens
"Vintage Machinery" entry for William Powell Co.
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Description: |
| Abstract:
This invention relates to those devices which employ a spring-actuated piston for the purpose of insuring a forced feed of grease or other dense lubricant from a cup, cylinder, or similar reservoir; and the first part of my improvements consists in making the rod of such pistons tubular, and fitting therein a plug or stem whose inner end acts as a cutoff that regulates or entirely stops the flow of grease, as occasion may require. The second part of my improvements consists in providing a lubricator with a pair of clutch-nuts, which are capable of engagement when it is desired to retract and lock the spring-piston preparatory to filling the cup or cylinder.
Claim:
The combination, in a grease-cup, of a spring-actuated piston for ejecting the lubricant and a cutoff for regulating the escape of the same, said cutoff being located within the tubular rod that carries said piston. |
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