US367638A - Furnace - Google Patents

Description

- (N0 Model.) 2 Sheets-Sheet 1.

J.- L. JUDGE.

FURNACE.

No. 367,638. Patented Aug. 2, 1887.

N. PETERS. Fhmwlilhe ra ber. Washington. D, c.

(No Model.) 2 Sheets -Sheet 2.

J. L. JUDGE."

FURNACE.

No. 367,638. Patented Aug. 2, 1887.

m I n U n (I a IIII'IIIII I N. PETERS Phelmhlbognpher. Washington. D. c

by short ducts I.

UNITED STATES PATENT ()FFICE.

JAMES L. JUDGE, OF MILWAUKEE, \VISCONSIN.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 367,638, dated August 2, 1387.

Application iilcd July 11, 1884. Serial No. 137,423.

To aZZ whom it may concern.-

Be it known that I, JAMES L. JUDGE, a citizen of the United States,rcsiding at Milwaukee, in the county of Milwaukee and State ofWiscousin, have invented certain new and useful to letters or figures of reference marked thereon,which form a part of this specification.

My invention relates to improvements in furnaces for burning soft coal; and it pertains to certain combinations and arrangements of the parts, as herein set forth, and distinctly pointed out in the claims.

My invention is further explained by reference to the accompanying drawings,in which Figure 1 represents a longitudinal section of the inclosing-walls, showing a side View of the flues. Fig. 2 is an end view. I Fig. 3 is a top View. Figs. 4 and 5 are details.

Like parts are represented by the same reference-letters throughout the several views.

A is the inclosingwall, which may be made of sheet metal, but ispreferably made of brick, as shown.

B is the fire-box or combustion chamber in which the coal is burned.

O is the grate to the ii re-box, beneath which is an ash-box and air-passage, D.

EE are a series of fines which are arranged at right angles to the fire box, as shown in Fig. 1, having their frontends only extended above the fire-box. The lower series of fines are connected at their front ends to the firebox by ducts F, while the rear ends of the up per and lower series of fines are in like manner connected together by the short d ucts G, and the upper sides of the upper fines are all connected with the horizontal smoke-pipe H Those connections only which are between the first 'two lines of the series are shown. The other lines in the series are, however, connected in like manner to each other and to the fire-box and pipe.

Fire being started in the combustion-chamber B, the heat, flame, and other products of combustion pass up through the duct F into the front end. of the lower series of lines E,

(No model.)

and from thence rearward and up through the ducts G into the upper series of fines E, then forward through the upper series to and up through the ducts I into the smoke-pipe H, through which pipe they escape to the chimney or open air.

To facilitate the cleaning of the fines E E their front ends are extended forward through the wall of the furnace and provided with closely-fitting doors J ,which are either hinged to the end flanges, K, of the fines or secured thereto at their upper ends by a pivotal bolt, L, as shown. hen it is desired to clean the lines, the doors of the upper series are first opened and a scraper is inserted, the blade of which nearly fills the open space in the due. This is pushed rearward, carrying before it all the soot and accumulations to the rear end of such lines, when it falls through the ducts G into the rear ends of the lower fines. All the upper ll ucs bein' g thus eleaned,the scraper is inserted into the lower series, and the soot is thereby drawn forward to the duct F,through which it falls into the combustion-chamber, passing through the same to the ash-box be low,when it is readily removed with the ashes.

The hot-air chamber through which they flues E E extend is subdivided into six compartments, M, by the central partition, N, and the two transverse partitions O O. The number of compartments may, however, be increased or diminisheth'as desired. The several partitions N and O extend from beneath the fines to the top plate or cover, I, as shown in Figs. 1 and 2. Thus it'is obvious that all the heat of the radiators is equally subdivided into compartments, so that the several pipes, which are each connected with their separate apartments, 'can each appropriate its proportional share of heat only.

An air-space, It, is formed upon the respect-- W are hot-.air pipes which communicate between the hot-air chamber and the room to be heated, terminating beneath the registers A in the chamber B. The exterior pipe, U, terminates at its upper end in the chamber 0. That part of the register which covers the chamber B is provided with the ordinary de vice for closing it and controlling the admission of warm air. That part of the register outside of the hot-air chamber over chamber 0' is perforated for the passage of air, so that.

as the warm air is admitted into a room, not otherwise ventilated, through the center pipe, V, the cool air is permitted to pass down to the heatingchamber through the pipe U. \Vhen, however, the room is so ventilated that a down current is prevented, the moderatelyheated air will enter the room from the ex terior pipe, and thus keep up a moderate heat in the room while the center of the register is closed. Both the interior and exterior air chambers are in constant open communication with the inlet aiepipe M at the bottom of the furnace, as shown in Fig. 1, and as the air in the exterior chamber becomes moderately heated by heat radiating from the vertical walls T and passes up through the exterior pipe, U, it is supplied from below through said pipe M.

D are doors formed through the partitions above the radiators or fines, by which any two or more of the apartments M may be thrown open to each other, whereby all or any fractional part of the heat contained in the hot-air chamber may, by closing the dampers in the hcatingriipcs, be thrown into a single room.

E are rods for opening doors D.

The lower end of the duct F is connected to the upper edges of the sides of the firebox B and closing the by the device shown in detail in Fig. 5, in,

its edge, and the upper edge of the sides H H are beveled, as shown. The cover being inserted between the sides H, the copper strip G is turned down over and pressed firmly upon such edge. This done, a V-shaped cap, I, is placed above and upon the copper strip, extending its entire length. A series of brackets, J, are then bolted to the sides of the firebox,H H, extending above their upper edges and provided with arms K and nuts L. The nuts L are then turned down upon a screwcut thread formed upon the upper ends of the brackets J, thus pressing the arms K down firmly upon the plate or rider 1, whereby the copper strip is held down firmly upon the edges of the firebox and a gas-tight joint thereby formed which will not be affected by expansion.

M is a duct through which exterior air enters beneath the radiatingllucs.

Having thus described my invention, what. I claim as new,and desire to secure by Letters Patent, is-

1. The combination, with a furnace having interior and exterior walls and an airspace between said walls, of the interior pipe, V, communicating with the interior chamber,the exterior pipe, U, communicating with the airspace between said walls, chambers B and O, and register A, said chamber B communicating with the room through the central. part of the register A, while the exterior chamber, 0, serves as a medium of communication through openings in the n'iarginal edge of said register with the exterior pipe, as set forth.

2. The coi'nbinatiou, with the vertical walls H H of the combustion-chamber,ofthe cover 1 provided with sheet-copper flanges G, V- shaped caps 1, series of arms K, and retaining-brackets J, provided with nuts L, all sub stantially as and for the purpose specified.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES L. JUDGE.

Vitnesses:

' C. T. Bnunmcr, XVM. SINNOT'r.

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