US155697A - Improvement in steam-boiler feeders - Google Patents

Description

E; H'. BENNETT; A Steam-Boilfer Fder's. ,No ,l55,697, I `Patented 0ct.6,1874:'

'Jl x Eg-T A I my i THE GRAPHIC CDJMOTD' HTH-398; 4| PARK PLACE. NJ.

.UNITED STATES PATENT OFFICE.

EDWIN E. BENNETT, or PAMEAPO, NEW JERSEY.

IMPRCVEMENT IN STEAM-BOILER FEEDERS.

Specification forming part of Letters Patent No. 155,697, dated October 5, 1874 application tiled September 15, 1874.

To all whom may concern:

Beit known that I, EDwlN H. BENNETT, of

l Pamrapo, in the county of Hudson and State of New Jersey, have invented an Improvement in Steam-Boiler Feeder, ot' Which the following is a specification:

This invention is applicable either as a boilerfeeder for returning Water of condensation in a steam heating apparatus or elsewhere back to the boiler, or for feeding a fresh or independent supply of water to a steamboiler, irrespective ofthe purpose to which the latter is applied.

The invention generally consists in a com-v bination, Witha reservoir or vessel from which sel7 or by means of a counterbalanced oat within a stationary supply-vessel. My invention, however, will here be shown as applied to the latter arrangement.

By this invention a single valve s'erves to ldo the duty ot' several, and the apparatus generally is simplified.

In the drawing, Figure l represents a vertical section, in alongitudinal direction through the valve, of an apparatus embodying my invention; Fig. 2, afurther vertical longitudinal section of the valve with accompanying parts, and in a different Working position to that shown in the former gure. Fig. 3 is a transverse vertical section oi' the valve and valvecase on `the line .r w; and Figs. 4t and 5 further similar views ot' the same on the line y y, showing the valve in different working positions.

A is the supply fvessel or reservoir, from which the water is fed or passed to the boiler by a pipe, b. B is the partially -submerged loat within the vessel A, and having an external counterbalance7 c, applied to it. G is the valve by which the automatic action of the apparatus is controlled. This valve, which is of cylindrical construction for operation Within. a valve-case, D, of greater length han it, is a rolling and intermittentlylongitudina`tsld`hrg\ one, the same deriving its rolling or primary Y motion from the rise and fall of the water in t-he vessel A, through the agency of the counterbalanced iloat B, by a rod, d, and crank e on the valve-stem. The interior of the valve cylinder or case D is constructed with three annular passages or cavities, f, g, and h, at suitable distances from each other, in the length of the valve-cylinder, and communicating, respectively, with the steam-inlet, f, the water-inlet h', and the steam and water inlet or connection g. The valve G is formed with a Waist, or ot reduced body construction between its ends, which latter constitute elongated heads or pistons that work in close contact with the interior of the cylinder D, and alternately serve, as the valve is shot to opA posite ends of the cylinder, to open or close the annularcavities j' h, and put them in or out of communication'with the cavity g and its connnection g', to lirst pass the steam entering by the inlet f and cavity f to the cavity g, and from, thence down the connection g', when the valve is in the position shown in Fig. 2, for condensation within the vessel A, and water-supply pipe connected therewith, and subsequently, when the valve is thrown to the opposite end of its cylinder, to admit water from any suitable source to enter within the vessel A by the inlet h', cavities h g, and connection g', through the reduced pressure within the vessel A, produced by the condensation of the steam therein.

A return action oi' the valve to the left-that is, after the vessel Ahas become charged with water, as described-serves again to admit steam and balance pressures, when the water will ow by the pipe b into the boiler, and the steam-afterward be condensed again in the vessel A for a repetition ot the action, as before. To eect these actions the valve Gis constructed with one long longitudinal passage, m, and another short longitudinal passage, a, both forming extended openings in the periphery of the valve near its one end, and communicating, respectively, with or through opposite ends of the valve. The extendedopenings in the periphery of the valve formed by these longitudinal passages are arranged parallel With one another, so that, in the rolling or turning of the valve, either one may be brought over a steam branch, r, of the inlet I. Furthermore, the valve-case is provided with exhaust-outlets s s, with Which the peripherical openings formed by the passages m n are made to communicate, respectively, when it is required to give the valve its longitudinal shot.

Supposing the valve C to be in the position represented by full lines in Fig. 2; then the passage n is in communication With the steambraneh 1^, and the passage m in communication with the exhaust-outlets s. This will cause the valve to be shot to the right by the pressure of the steam on its left-hand end. Such movalve to be shot by the steam to the left again,

shutting the Water-inlet h', and to be retained there till the valve is turned again to the position shown in Fig. 2. Thus time is given for the accumulation of water in the reservoir A, and discharge of the same into the boiler, and the action made automatic by the rise and fall of the Water in the reservoir A, causing the valve at intervals to be turned so that it may be shot by the steamto the right or to the left, to make the necessary changes as regards the supply and shutting off of steam and Water to the reservoir.

` I claim- The combination, with the vessel from which Water is supplied to the boiler, of a rolling steam-driven valve, C, having passages ma, and applied and actuated as described, the eX- haust-ports s s, and the passages or cavities ff, g g', and h h', substantially as and for the purposes herein set forth.

E. H. BENNETT. Witnesses:

MICHAEL RYAN, FRED. HAYNEs.

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