US Patent: 189,651
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| Lubricators for Steam Engines
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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: |
Aug. 28, 1876 |
| Granted: |
Apr. 17, 1877 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for William Powell Co.
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Description: |
| Abstract:
This invention relates to that class of devices which are employed for automatically admitting oil, tallow, or other lubricants to the valve chests of steam-engines, locomotives, &c.; and the first part of my improvements comprises a novel feature, which I have designated the vacuum-chamber, inasmuch as said chamber discharges oil only when steam is shut off:, and when the action of the piston produces a vacuum or partial vacuum in the cylinder of the engine. This vacuum-chamber may he a separate and distinct member with reference to the condensing-chamber, which latter lubricates the engine when steam is turned on; or said vacuum-chamber may be cast in one piece with the condensing-chamber, and be separated therefrom by any suitable partition or division; but in either case the vacuum-chamber is to be arranged so as to discharge its contents gradually and automatically through suitable passages or ports at or near its lower end, which ports communicate through the base and stem of the lubricator with the valve-chest. This discharge from the vacuum-chamber is controlled by a downwardly-opening valve applied to the lower end of a tube or pipe that projects vertically from the bottom- of said chamber, said valve being rendered capable of adjustment in any suitable manner, so as to regulate the flow of lubricant with the utmost nicety. This vacuum-chamber is filled by disengaging from the top of the same a suitable cap, and after the chamber has been charged, said cap is screwed down, thereby hermetically closing the vessel.
Claim:
An improved steam-engine lubricator, consisting of a condensing -chamber and a vacuum-chamber contained within a single shell, which latter is applied to a stand or base, through which base the contents of said chambers are discharged into the steam-chest.
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