US864581A - Water-heater. - Google Patents

Description

PATENTED AUG. 27, 1907. I. WATTS. WATER HEATER. APPLICATION FILED MAR. 4, 1904.

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IRA WATTS, OF MOUNT VERNON, NEW YORK.

WATER-HEATER.

Specification of Letters Patent.

Patented Aug. 27, 1907.

Application filed March 4, 1904. Serial No. 196,571-

To all whom it may concern.-

Be it known that I, IRA WATTS, a citizen of the United States, residing at Mount Vernon, in the county of Westchester and State of New York, have invented new and useful Improvements in Water-Heaters, of which the following is a specification.

"his invention relates to devices for heating feed water for steam boilers or analogous purposes by the use of exhaust steam, and thus obviate back pressure.

The invention consists in the construction and arrangements of the several parts which will be more fully hereinafter specified, and is in the nature of an improvement on my Patent No. 720,200, dated February 10, 1903. In my patent is shown an exhaust line or pipe having a valved branch connected to a heater, the latter being provided with water supply pipes extending inwardly thereinto through opposite ends and terminating at a point intermediate the length of the said heater. In the patented construction also the lower portion of the heater is attached to a water tank, and connected to the water tank is a pipe leading to a pump.

In the improved construction I dispense with the use of the water tank and connect the lower extremity of the heater directly to a pump, and gain by such improved arrangement a more direct action and avoid loss of heat in the feed water that would necessarily result to some extent where said water was deposited in a tank after leaving the heater and then drawn off from the tank to the pump.

The drawing shows a sectional elevation of the improved structure, and therein a designates the exhaust line or pump running from any suitable source, and having a branch b provided with a valve b the branch b connecting with the upper end of a heater d. Extending through the upper end of the heater (1 is a water supply pipe 9 leading from a street main or other source, and having the extremity thereof within the heater perforated, as at g, and the free end fully open and surrounded by a receding guard. Through the lower end of the heater d a water pipe f projects and may constitute the return pipe from a hot water heating system, or from radiators. The portion of the pipe f which extends into the heater d is also longitudinally straight and imperforate, and has its upper end fully open and close to the open end of the portion of the pipe 9 extending into said heater, and likewise provided with a receding guard f surrounding the same. The portion of the pipe f extending into the heater is iinperforate, except at its upper open end. By forming the free end of the portion of the pipe 9 within the heater fully open and in close proximity to the upper open end of the portion of the pipe f within the heater, the normally I and the temperature of this normally cold water from a street main or other source will thereby be more quickly raised and be more positively affected by the incoming exhaust steam, and thus materially expedite the operation of heating the water to such a degree as to render it practical for transmission or conveyance to a boiler. A portion of the water coming through the pipe g will, of course, be forced out through theperforations in the part of the said pipe within the heater, and be materially affected by the exhaust steam, but in View of the fact that the water coming through this pipe is cold, the exhaust steam will be quickly condensed and will lose any heating eifect it may have before any part thereof reaches the lower extremity of the portion of the pipe g within the heater (1, hence, the portion of the cold water which exits through the lower open end of the portion of the pipe g within the heater in proximity to the upper open end of the portion of the pipe f with in said heater will be heated by the return flow of hot water into the heater.

Connected to the lower extremity of the heater (1 is a valved pipe (1, which is attached to a pump 1'. From this pump a pipe h leads to a boiler or other device to which it is attached to convey the heated feed water. The form of the pump i is not essential, but it will be understood that any vacuum pump or rotary or injector pump, or any suitable means for obtaining a vacuum in the heater (1 will be used. The action of the pump or analogous device on the heater (1 tends to produce a vacuum and prevents any back pressure occurring in the exhaust line or pipe a, and furthermore the operation of this pump or analogous device is beneficial with relation to the pipe f, as it will tend to secure quick circulation of the hot water through the system of which said pipe f forms a part.

Having thus described the invention, what is claimed, is:

A water heater comprising a heating chamber havinga cold water supply pipe entering one extremity thereof and continuing longitudinally tihereinto about midway thereof and provided with perforations located in the body of the same and having a fully open free end with a receding guard surrounding said end, a return pipe having a portion thereof also extending through the opposite end of the chamber and into the latter and the free end thereof fully open and in close position to the free open end of the cold water supply pipe, the free open end of the return pipe also having a receding guard therearound, an exhaust steam pipe connected to the end of the chamber adjacent to the point where the cold water supply pipe enters said chamber, and a pump directly connected to the opposite extremity of the chamber.

In testimony whereof I have hereunto set my hand in the presence of two subscribing; Witnesses.

IRA WATTS.

Witnesses GEORGE E. SCIIOFIELD, CHAS. E. PouNsGEN.

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