US394929A - Feed-water regulator - Google Patents

Description

(No Model.)

J. LISK.

FEED WATER REGULATOR.

No. 394,929. Patented Dec. 18, 1888 [rave/z 60 2':

N. FETERs Plmlounw n mr. Washingion. D. C.

TJNTTED STATES PATENT Orrrcn.

J OSEPII P. LISK, OF MACEDON, ASSIGNOR OF TYVO-TIIIRDS TO GILBERT F. EVERSON AND LOUIS P. ENGEL, OF PALMYRA, NEYV YORK.

FEED-WATER REGULATOR.

SPECIFICATION forming part of Letters Patent No. 394,929, dated December 18, 1888.

Application filed May '7, 1888. Serial No. 273,063. (No model.)

To (LZZ whom it may concern:

Be it known that l, JOSEPH P. LIsK, of Mace don, 1n the county of Wayne and State of New York, have invented a new and useful Improvement in Feedater Regulators for Steam-Boilers, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

My invention relates to a feed-water regulator for steam-boilers, in which a float is used to regulate the flow of steam to the pumpingengine to control the action of the pump employed to supply the boiler, the object being to keep the supply-pump running at various rates of speed to supply the feed-water more or less rapidly as the steam is drawn from the boiler in greater or less quantities, resulting from the variation of the work the engine is called upon to perform.

The invention is hereinafter fully described, and more particularly pointed out in the claims.

Referring to the drawings, Figure 1 shows the general arrangement of the steam boiler, the regulator, and the feed-pump, the boiler being shown in dotted lines. Fig. 2 shows, in larger dimensions, the parts for regulating the flow of steam to the supply-pump; Fig. 3, a view of some of the parts, seen as indicated by arrow CC, Fig. 2; and Fig. 4, an enlarged view of the float. The parts shown in Fig. 2 are seen in the same direction in which the corresponding parts are seen in Fig. 1.

Referring to the parts of the device, A represents a steam-boiler, B the dome, O the water-leg, and D the furnace-walls, all shown in dotted lines, a being the water-line of the boiler.

E is a teed-water steam-pump of any common kind as, for instance, a pony pump and F the regulating device, by means of which the steam flowing to the pump to drive the latter is regulated by the height of water in the boiler. The regulator is placed opposite the water-level in the boiler, joined to the dome by a stcampipe, G, and to the waterleg by a water pipe, H.

I is a steam-pipe connecting the regulator with the steam-cylinder of the supply-pump, and K the pipe leading from the pump to the boiler.

The regulator F consists of an inclosure, b, in which water stands in the water-space c on a level with the water in the boiler, this being insured by the pipe-connections Gr and H above described. The inclosure is formed with a neck, d, closed at its open end by a cap, f, rigidly bolted thereto.

As a matter of convenience in forming the valve-seat, the pipe I is divided in the cap f, as shown, said valve-seat being formed on the piece g, which is substantiallya continuation of the horizontal part of the pipe I, leading from the regulator to the pump. Both the parts 9 and the main part of the pipe I are threaded in the cap, the latter acting in the capacity of a coupling for the parts of the pipe. The end of the pipe projecting into the steam-space of the inclosure is closed; but the pipe is formed with openings 6 6, through which, when not covered, steam may flow freely to the pump. The exterior of the pipe g is turned smooth for a distance from its end to form a valve-seat, and a ring or valve, 2', fitted to slide thereon to cover or uncover the holes e e, as may be required, thus regulating the flow of steam to the pump.

19 is a lever within the inclosure, pivoted at Z to a stud, h, rigid with the cap f, at the long end of which lever is carried a float, it, resting on the water within the inclosure. The short end a" of the lever is turned upward and bifurcated to embrace the valve 2 as shown in Figs. 2 and 3, the valve being formed with a circumferential groove, 8, in which to receive the branches of the lever. N ow, from this construction and arrangement of the parts it will be understood that as the water falls in the boiler the valve '2 will be drawn by the lever away from over the openings 6 e in the pipe g, allowing a current of steam to flow from the boiler to the pump to cause the lat ter to act and force a volume of water into the boiler, and when the water in'the boiler rises by the action of the pump to or above the predetermined water-line a the valve will be carried by the lever over the holes 6 e and cut off the flow of steam to the pump, reducing it to a very slow motion or to inaction.

\Vhen the steam is being drawn rapidly from the boiler-as, for instance, for heating purposes, for driving an engine doing heayy work, or for other purposes the pump will move most of or all the time at a slow rate to hold the water to the proper level in the boiler. I design to set the valve so that there will be slight openings disclosed at e 6 when the water is ful 1y or it early up to the water-lin e, so that a slow motion of the pump will result even when the boiler is well supplied, thus forestalling a lowering of the water at any time to a point much below the required level.

The float, which is spherical, is connected with the lever p by means of a bolt, 21, passing dizunetrieally through it, the bolt being provided with eollars o 0 above and below the float res )eetivelv the eollar 0 beingtitted by a serew-threml to the end of the bolt.

it are washers, of india-ruld'ier or othen packing materiz'tl, for rendering the joints between the bolt and the float water-tight.

\Yhat I elaim as my invention is 1. A steam-boiler and supply-pump therefor, in combination with a regulator for the pump, consisting of an in elosed float, a steampipe eonnecting said pump and regulator, said.

pipe having its end stopped and formed with openings through the walls thereof, at eirou lar valve upon said. pipe [formed with a peripheral groove or ehannel, and a bent lever having one arm eonneeted with said float and the other arm held within said groove or channel of the valve, substantial]; as shown and d( seribed.

In a device for regulating a li(%(i(l- )ll1ll1), a spherical float formed with two opposite openings a rod passed through said openings formed with a eollar at one end thereof and provided with a serew-n ut at the opposite end, and packing-rings for said rod between the float and. the eollar and serew-nut, 'respeetively, in emnbinat'ion with an inelosure for said float, a perforated pipe entering, said. inelosure, a valve on said pipe, and a eonneett- 'ing-bar for said valve and rod, substantially as shown and desta-ibed.

.IUHlCllI l. lllfsli. Witnesscs:

E j Wmrrnonn, Z. L. DAVIS.

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