US155870A - Improvement in boiler-feeders - Google Patents

Description

- 2Sheets--Sheet1. H. HOWE.

Boiler-Feeders.

N9.l55,870. Patented Oct 13,1874.

'WIZIZNESSES.. IN VENTOR 001/ Q g W Attorneys.

(E GRAPHIC C(LPHOYD -LITH. 398k PARK PLACE,N1Y

2 Sheets -ShegtZ.

n nowa. Boiler-Feeders.

gg mv ssEs. INVENTOR Attorneys.

THE GRAPHIC CO. FHOTO'UTHJBSL I PARK PLACE, "I.

'JNITED STATES PATENT QFFIGEL HENRY HOWE, OF COUNCIL BLUFFS, IOWA, ASSIGNOR TO JAMES YOUNG, OF SAME PLACE.

IMPROVEMENT IN BOILER-FEEDERS.

Specification forming part of Letters Patent No. 155,870, dated October 13, 1 74; application filed May 9, 1874 To all whom it may concern:

Be it known that l, HENRY HOWE, of Council Bluffs, in the county of Pottawattamie and in the State of Iowa, haveinvented certain new and useful Improvements in Boiler-Feeders; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of an automatic boiler-feeder, as will be hereinafter more fully set forth.

In the accompanying drawing, Figure 1 is a perspective view of my boiler-feeder; and Fig. 2 is a longitudinal vertical section of the same.

A and A represent two waterchests of any suitable dimensions. This may be made in one vessel or case, with a central partition, to form the two water-chests. The chests A A communicate through the bottom by ports a a,respectively, with a steam-chest, B, underneath, in which is a slide-valve, C, with ports so arranged that when the port a is open the port a is closed, and vice versa. Above the water-chests A A is another steam-chest, D, provided with an interior sliding valve, E. This valve is provided with a central port, I), passing vertically through it, and near the ends on the under side with half-moon shaped ports 01 d. The valve covers four ports, 0 e and ff, the two former leading directly down into the two water-chests A A, respectively, and the ports f f commnnicatin g with the pipe G leading down into the well or water-supply. The valve E, with its ports, and the ports from the steam-chest D, are so arranged that when the port I) of the valve is placed over the port 6, as shown in Fig. 2, the port f is closed, and the ports 6 and f connected by the port d of the valve. And when the valve is moved to the other side, and the port 12 gets over the port 6, the port f is closed, and the ports 6 and f connected by the port d in the valve. H is the pipe, which conveys steam from the boiler to the upper steam-chest D. The lower steam-chest B is also connected with the boiler by a pipe, I, which is provided with a stopcock, h, and is to extend down to the waterlevel inthe boiler. The water-chests A A are respectively provided with stop-cocks m m, to 'allow the air therein to escape.

The operation of this device is as follows: Supposing the steam is up, ready to start the machinery, the valves C and E are moved into the position shown in Fig. 2, which will let the steam into the water-chest A from the boiler. The stop-cock m is then turned to let the air in said water-chest escape, after which it is closed again. The chest A then becomes filled with compressed steam. Both valves are now moved to the opposite side, when the steam in the chest A will force its way through the ports 0 d f into the pipe G, leading to the well or water-supply, and condense, and thus form a vacuum, so that the pressure of the atmosphere will force the Water from the well through the pipe G and ports f d 6 into the water-chest A, an d fill the same. During this operation the water-chest A is filled with steam in the same manner. The valves C E are now moved back again, when the steam from above and the water from the boiler below will press on the water in the chest A with equal force, but as the water is above the boiler its own gravity will cause it to force its way down into the boiler. While the chest A is emptying the chest A is being filled, and so on alternately, one emptying and one filling all the time the valves are in operation..

The valves are to be operated by the machinery at suitable intervals, and as the steampipe is to extend down into the boiler to the water-level, the operation will be automatic, the device acting only when the water gets below the level, and allows steam to enter the steam-pipe.

The above operation is when using cold water, but when hot water is used there are to be two side pipes at the upper steam-chest, and two sets of half-moon ports cut in the upper valve, one on each side, one set to admit the hot water, which must be elevated above this apparatus, and the other to let the steam escape while the chests are filling with water. Otherwise it is made the same for cold or hot water.

This device can be started easily and quickly, and without any waste of hot Water, and v the flow of water can be regulated as wanted. There is a great saving of power, as there is no friction except the moving of the valves by the machinery-say, about once per minute. The atmosphere is brought into requisition to force the water from the Well, thus saving a second pump to bring up the Water. valves will not stick, and there is no danger of the water freezing in the pipes, either when running or standing, as the water can be let out of the chests by means of the stop-cocks m m, and when running there is enough steam escapes through the water-pipe to keep" from'freezing. Another advantage is that, as the boiler can be always completely supplied with a sufficiency of water, it is a perfect safeguard against explosions.

,Having thus fully described my invention,

HENRY HOWE.

Witnesses:

J. D. EDMUNDsoN,

L. SQUIRE.

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