US149783A - Improvement in wash-boilers - Google Patents

Description

. UNITED f;

PATENT rrrcnl L. DAVIS NOBLE, OF CERRO GORDO, ILLINOIS.

IMPRQVEMENT IN WASH-Bodens.

Specification forming part of Letters Patent No. 31119,783, dated April 14, 1874 application filed February 12, 1871.

To all lwhom it may concern: c

Beit known that I, L. D. NOBLE, of Cerro Gordo, in the countyrof Pratt and State of Illinois, have invented a certain Improvements in Washoilers, of which the following is a specication:

Figure 1 is a plan view of my improved boilers, the cover being removed for the purpose of showing the diaphragm, the removable valve, the tubes or ducts through which the water rises to the surface of the articles which are being cleaned, and the aperture through which the water may be emptied from the space between the diaphragm and the bottom of the boiler. Fig. 2 is a sectional elevation, showing the construction and arrangement of the parts 5 and Fig. 3 is a transverse vertical section.

Corresponding letters refer to corresponding parts in the several figures.

This invention relates to what is termed washing-boilers; 7 and it consists in the oonstruction and in the combination of certain of the parts of which .it is composed, as will be more fully set forth hereinafter.

In constructing boilers of this type, I make the upper portion A 0f the vessel of any required size, and of a shape that will adapt it vto the stove or furnace in or upon which it is to be used, the material of which it is made being tin, zinc, galvanized iron, or any otherv suitable material. The lower portion of this vessel A1 A1 I propose to make of sheet copper or of brass, the bottom being of the same material. The copper upon the side is to eX- tend up to about the front,where the diaphragm B is located, and is intended to serve as a means of protecting that portion from injury by intense heat, when it isallowed to descend into the stove or furnace. The copper or brass portion may be soldered or brazed to the upper portion A in such a manner that it may be removed when worn out, and a new bottom be substituted. A cover, A2, is provided, which covers the boiler when in use, and prevents the escape of steam or vapor into the room. For the purpose of providing a water-reservoir in the bottom or lower portion of the boiler, a diaphragm, B, is extended across the Isameat or about at the point where the two sections of4 the .boiler are united. This diaphragm is soldered to the sides of the boiler, and is thus fixed in its position and made water-tight, except that it has an aperture near its center, which iscovered with a valve, and through which water passes to the chamber below it. Upon the edges of the aperture in thevdiaphragm pieces of metal are soldered or riveted, by being so formed with overhanging portions as to receive and hold in position a plate, C, which is in the form shown in Fig. l, and has its edges made double in thickness, and bent over, as shown in Fig 3, in order that they may hook over the projection upon the cleats formed upon the diaphragm B, and thus secure said plate in position. The plate above referred to has an aperture in its center, which is closed by vertically rising and swinging valves D and D', they being constructed as shown in Fig. 2, and suspended upon yokes E E, attached to the plate C. The arrangement of these valves is such that they may rise and fall vertically, or that their inner ends may swing from the point of suspension, and rest upon a support or stop provided for them, which projects down from the lower surface ot' the plate G, as shown in Fig. 2. As a conse-4 quence of this arrangement of the valves they are free to form graduated openings for the water to pass down from the upper portion of the boiler to the chamber below the diaphragm, or to4 fall at both of their ends, and thus leave a full opening for theypassage of the water, and they are also free to rise in the same manner, and thus control the pressure of steam in the chamber below, and cause all the water which it may contain to pass up through the ducts at the ends of the boiler, or a portion of it may pass the valves at one of their ends, and go up through the plate O, and thus regulate the pressure in the chamber without cutting off the supply of water thereto. To prevent any portion ofthe articles that are being boiled or cleaned from passing down and choking up the passage to the valves, a plate, F,`is placed above the opening in the plate C, it being held at such a distance therefrom as to leave a free passage for the descending water between the two. the plate O is of the tapering form shown, and to the fact that it is provided with the bent edges, it and the valves which it carries may Owing to the fact that at any time -be easily removed and replaced, and at the same time the boiler may be converted into an ordinary boiler for the boiling of clothes or the cooking of food. For conducting the Water from the chamber in the lower portion ofthe vessel to the upper surface of the clothes While being cleaned, tubes or ducts H H, of the form shown, are placed in each end of the boiler above the fixed diaphragm B, apertures being formed in said diaphragm for the passage of Water to the tubes or ducts, the upper ends of which are enlarged and made to project for some distance toward the center of the vessel, in order that the `Water, as it rises in them and is discharged therefrom through the apertures G Gr in the upper and, may be projected to the center of the mass of material which the boiler may contain, and thus be in the proper position to pass down to and through the valves, preparatory to being again raised through the ducts.

In order that the Water may be readily removed from the chamber When the boiler is not in use, an aperture is formed in the upper surface of one of the ducts H, which aperture is closed with a screw-cap, that may at any time be unscrewed, and the Water poured out through the duct.

Having thus described my improved boiler, What I claim, and desire to secure by Letters Patent, is-

1. The combinatiomwith a wash-boiler, ofthe parts A1 Al, fixedv diaphragm B, tapering anged and removable sliding plate (l, and the valves D D, the parts being constructed and arranged substantially as and for the purpose set forth.

2. In combination with the flaring openings in the plate C, the haring valves D D, hinged at one end on the yoke E and supported at the other and free end, as shown, so that the valves having both a swinging and a vertical action will close gradually as the pressure of the steam increases, substantially as set forth. Y In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

L. DAVIS NOBLE.

XVitnesses:

SOLOMON WELTY, H. M. GREEN.

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