US Patent: 501,464
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| Injector
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Patentee:
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| Strickland L. Kneass (exact or similar names) - Philadelphia, PA |
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Patent Dates:
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| Applied: |
Jun. 16, 1892 |
| Granted: |
Jul. 11, 1893 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
All injectors have an overflow opening from the nozzles through which an escape of water takes place until the jet has acquired sufficient velocity to enter the boiler, and whenever a casing is employed to maintain the nozzles of the instrument in proper relation with each other, this overflow opening forms a part of this casing, or is rigidly attached thereto. In all injectors which are adapted to restart themselves, when from any cause the jet is broken, the overflow passage must be very large as compared with those which are manipulated to restart, and it frequently o occurs that in placing such injectors in the position they are required to occupy for working, this fixed overflow passage is a serious inconvenience, so much so in fact, as to limit the position of the instrument. For example, lifting injectors are preferably employed upon locomotive engines, because they can be placed in the cab above the level of the water in the tank, and thereby avoid waste of water through the injector. In this position it is frequently desirable to place the instrument so that its discharging end shall be outside the cab, while the handles for manipulating it, shall be inside, but with a fixed overflow passage this is impossible, without cutting a hole through the cab large enough to admit this overflow passage, and when the injector is in place, this hole must remain open to permit the prompt removal of the instrument if required. The direction of the o overflow may require to be adjusted to the right or to the left, dependent upon which side of the locomotive it is placed, so that when two injectors are used on each locomotive, which is now the universal practice, the injectors must be inclined in opposite directions or the pipes which receive the overflows must be bent, either of which is very undesirable. The objects of my present invention therefore are, to provide short and direct overflow o passages of sufficient cross sectional area to permit automatic restarting and to arrange the overflow passage so that its relation to the instrument can be modified at will. To these ends my invention consists in an overflow chamber and a removable casing, which encircles this chamber, provided with a check valve to prevent the admission of air to the chamber, through which casing the overflow has exit, and it further consists in an overflow chamber provided with a check valve to prevent the admission of air to the chamber, and a removable casing which encircles the chamber and the check valve, through which casing the overflow has exit.
Claim:
In combination with an injector, a removable overflow casing which encircles the body of the injector and contains a passage for the overflow, between the overflow chamber of the injector and the air. |
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