US436564A

US436564A - Boiler-feeder

Info

Publication number: US436564A
Authority: US
Publication date: 1890-09-16
Anticipated expiration: 1907-09-16

Description

(No Model.)

P. J. KELLY. BOIL-BR FEEDER.

Patented Sept. 16, v1890.

.m M M m UH .1 n W0 LEI.

mg noms PE1-ans cu., moro-umu., msnmc UNITED STATES PATENT OEEICE.

PETER J. KELLY, OF AUBURN, NEV YORK.

Bonera-FEEDER.

SPECIFICATION forming part of Letters Patent No. 436,564, dated September 16, 1890..

Application iiled January 27, 1890- Serial Ilo. 338,302. (No model.)

To all whom t may concern: l

Be it known that I, PETER J. KELLY, a citizen of the United States, residing` at Auburn, in the county of Cayuga4 and State of New York, have invented certain new and useful Improvements in Boiler-Feeders, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in bolerfeeders designed for use in regulating the feed of water to steam-boilers, either high or low pressure water-supply, from a tank or from a city wa ter-supply, and either with or without the use of a pump. It is designed more particularly as an improvement upon the device shown and described in my application, Serial No. 316,682, iiled July 6, 1889.

It has for its object, among other things, to simplify and cheapen the device and to pro- Y vide for the ready draining of the float when occasion may require.

Other objects and advantages of the invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawing, which, with the letters of reference marked thereon, form a part of this specification, and in which is shown a central vertical section of a regulator constructed in accordance with my invention.

Referring to the drawing by letter, A A are two castings substantially hemispherical, or rather each a little more than a hemisphere, so as to form an elongated chamber, as shown.

` These castings have flanges a a', through which are passed the bolts a2, provided with suitable nuts serving to bind the sections or castings together, any suitable packing being introduced to render the joints steam and water tight. These castings are formed with suitable internally-threaded bosses or necks c3 for connect-ion with the pipes hereinafter described. d4 ai represent pipes connected to two of these necks or bosses and leading through the upper and lower sections of the chamber or receptacle formed bythe castings A A', respectively, to the water-glass a to indicate Vthe water-line within the sphere or chamber. A drip-cock colis provided for drainwhich is screw-threaded into the boss d3 at the top of the section A. The horizontal branch B2 of this coupling is internally threaded, as shown, and is designed to receive a pipe connecting it with the pump. (Not shown.) The upper vertical extension of this coupling has connected therewith a nipple or pipe B3, the lower end of which is concaved to form a curved seat B4 for the valve hereinafter described. This nipple is designed to be connected with the boiler-that is, with the dome thereofto conduct dry live steam into the coupling.

C is a float, and C its stem or rod, which extends upward through the coupling B and is provided with two valves C2 and C3, the lower one C2 of which tinds a seat against the under side of the diaphragm B5 within the coupling B, the other or upper valve C3 finding its sea-t in one direction against the upper edge of said diaphragm and in the upper direction against the concave seat B1t of the nipple B3, above described. The upper face of the valve C3 is con vexed, as shown, being held to its rod by means ot a screw B, havinga rounded head, which is adapted to iit in the aperture B7 in the lower end of the nipple B3.

To the lower end of the iioat I attach a pipe D, the lower end of which is screw-threaded to receive a detachable cap or cup D', which extends within the nipple E, having a screwthreaded engagement with the boss c3 of the casting A, said nipple being provided with a detachable nozzle E', carrying 'a suitable valve E2.

F is a pipe adapted to be connected with the boiler to convey steam therefrom to the steam and water chamber formed by the castings A A. G is another pipe connecting the lower portion of the chamber with the boiler.

An apparatus constructed as above described, if properly connected with a boiler, the level of the water within the chamberwill be the same as that within the boiler, and the float C will rise and fall with changes of the level, and-will carry with it the valve C3, so that said valve may open or close the lateral passages of the upper coupling, whereby the introduction of water within the chamber may beaccomplished. Suppose, for instance, that 'the boiler is to be supplied with water from the pump, (not shown,) the water entering through G and the steam through the pipe F. Both coming from the boiler the pressure from one'will counterbalance that of the other, and the float C will assume a position sufficiently elevated to raise the valve C3, so as to close the transverse passage of the upper coupling B. Now as the water-level, which under such circumstances would be substantially at the equatorial line of the chamber, begins to fall by reason of the fall of the water in the chamber in the production of steam the float C and the valve C3, carried l by the stem of said float, also fall, opening the-passage of the upper coupling, which connects with the live-steam space of the boiler and withthe pump, thus permittingr the entrance of live steam through the nipple B3 and pipe B2 to the pump, which is operated bythe steam until the water-level is raised sui'ciently to elevate the float and its valve and close the passage in the nipple B3.

The float is liable in time to accumulatev water which it is desirable to remove. To do this, it is only necessary to detach the nozzle E and `remove the cap D of the pipe D, when the Water within the oat will drain'out, after which the cup may be replaced and the-nozzle then'screwed on.

The concave seat for the convex valve Cs provides for ready seating of the valve should the stem thereof be any other than a direct Vertical line.

The valve C2 is used more as a safeguard to stop the flow of any water that might enter the coupling in the case of leakage or from other causes.

l. The combination, with the chamber and its connections, of the float, a pipe connected with the lower end thereof, and a removable cap on the lower end of said pipe, substantially as and for the purpose speciied.

2. In a regulator, the combination, withthe chamber and its connections, of the nipple, the lower portion of the chamber, a drain-cock thereon extending through the nipple, and a removable cap on the lower end of said pipe, substantially as and for the purpose specified.

In testimony whereof I affix my signature in