US14187A - Improvement in heating feed-water apparatus for locomotives - Google Patents

Description

UNITED STATES PETER S. EBBERT, OF CHICAGO, ILLINOIS.

`IMPROVEMENT IN HEATING FEED-WATER APPARATUS FOR LOCOMOTIVES.

Specification forming part of Letters Patent No. 14,187, dated February 5, 1856.

To all whom it may concern.-

Be it known that I, PETER S. EBBERT, of the city of Chicago, in the county of Cook and State ot' Illinois, have invented a new and useful Method of Heating the Feed-Tater of Locomotive-Engines, the object of which is the saving of fuel in producing the required amount of steam for propelling purposes; and I do hereby declare tha-t the following is a full, clear, and exact description of the saine, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a plan of atransverse section of a smoke-pipe, showing the saddle S whereon the smoke-pipe sets, (represented by l.) 2 is the inside pipe of the smoke-pipe. 3 is a continuous pipe placed within the inside pipe of the smoke-pipe.

Fig. 2 is a vertical section of a smoke-pipe and smoke-box, showing the steam-pipe l, the exhaust-pipes 2 2, and also the inside pipe or chimney ofthe smoke-pipe 3, inclosed in which is the continuous pipe a 4 4 4 4 4.

Fig. 3 is a side elevation showing the smokepipe and front part of the boiler, also the connections with the heater, together' with the pump and check-valve, whereon l represents The pipe form-ingaconnection with the pump 2, and the heater at 3. 4shows the dischargepipe from the heater, the connection being at 5, and passing into the boiler throughpthe check-valve 6. 7 represents a branch of the Dipe 4, having a junction at 9, and also a connection with the top of the check-valve 6, or any part of the boiler (that fancy or the necessity of the case may dictate) which may be used at pleasure as a return supply-pipe for the purpose of keeping the heater full should it at any time be deemed necessary or desirable in consequence of the engine standing still or otherwise, the valve being regulated by the wheel or cock 8.

The difficulty with heaters as heretofore applied to locomotives, and which has been the main cause of their disuse, arose from the impossibility ot' keeping the pipes or water-chambers tight, owing to the extreme differences of expansion and contraction at the top and bottom, or between the inlet of the cold and the exit of the hot water, the variation of temperature in extreme cold Weather being nearly 200o between these points. By

the use of the pipe-couplings which I have adopted, which merely unite the tops and bottoms ofthe two adjoining pipes, however much the variation of temperature it cannot affect but two pipes of the series, and even then the pipes by the additional heat can expand lenthwise withoutopening any joints, for they have none in reality to open. So, on the other hand, the pipes may contract lengthwise without doing any damage whatever, for the couplings, pipes, and all merely shorten, without affecting any joint whatever. Thus the pipes on one side of the stack may contract by the introduction of the cold water, while those on the opposite side may be elongated by expansion without in the least affecting each other or causing any leak. Itis admitted that such pipe-couplings as I use of themselves are not new; but their application to my special purpose and as arranged by me has made a heretofore impracticable, though a very desirable thing, perfectly practical and highly useful, as the late extremely cold Weather has proven.

What I claim as ot my invention, and desire to secure by Letters Patent, is-

The auxiliary pipe 7, as arranged in relation to that part of the main pipe containing the valve, so that a communication may exist between the waterspace ot' the boiler and the interior of the feed-Water pipes in the smokestack when the feed-pump is not in operation, as herein set forth.

PETER S. EBBERT. Attest:

W. S. BROWN, E. R. BROWN.

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