US Patent: RE9,407
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| Injector
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Patentees:
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| William Sellers (exact or similar names) - Philadelphia, PA |
| J. Sellers Bancroft (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 09, 1878 |
| Granted: |
Oct. 12, 1880 |
| Reissue Information: |
| Reissue of 208,425 (Sep. 24, 1878) |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
Some of the improvements are applicable to all forms of injectors; but as all of them are applicable to the self-adjusting injector described in the United States Patent No. 141,173, granted to William Sellers July 22, 1873, the drawings represent this form of injector.
It has been found in practice, on locomotives especially, that in the self-adjusting injectors as constructed previous to one present invention the jet of water is liable to be broken by sudden jars or shocks when running at high speeds over rough tracks., In the self-adjusting injector the combining-tube, and consequently the column of water flowing to the injector, are frequently thrown into vibrations or oscillations by irregular condensation of the steam-jet, or from exteral causes, and violent shocks are liable to produce these vibrations of the water-supply .n all injectors. In the self-adjusting injector these vibrations, when once started, continue regularly, with a constantly-increasing intensity, until the jet is so much disturbed that it is broken and the injector ceases to work. We discovered that with a self adjusting combining-tube the vibration caused by a shock not sufficient to produce this effect in she first instance, yet being imparted to and transmitted through the column of water flowing to the injector, was amplified with the distance traversed until it agitated such a body of water as to_ break the jet, and we discovered that this was due to the fact that the column of water flowing to the injector was rigidly confined. It is the object of the first branch of our invention to prevent this transmission of shock to any considerable distance through he column of water flowing to the injector and to this end our invention consists in modifying the rigid confinement of the column of water flowing to the injector by means of an elastic medium more susceptible of vibration than the column itself, and which will therefore prevent the transmission of shock beyond the elastic medium, while the vibrations set up by the shock, having their regularity interfered with by the elastic medium, are speedily arrested. This object we accomplish in the best mode known to us by the use of an air-chamber, constructed and combined with the injector, as hereinafter particularly described, but we contemplate using instead of this air-chamber other devices.
Claim:
In an injector, the combination of a water-supply pipe, an air-chamber, and a contracted conduit between the air-chamber and the water-supply pipe.
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