US813507A - Furnace-radiator. - Google Patents

Description

G. MAAG.

FURNACE RADIATOR. APPLICATION FILED MAY 26, 1905.

PATENTED FEB. 27, 1906.

2 SHEETS-SHEET 1.

PATENTBD FEB. 27, 1906.

G. MAAG. FURNACE RADIATOR.

APPLICATION FILED MAY 26, 1905 2 SHEETS-SHEET 2,

UNITED STATES PATENT OFFICE.

GEORGE MAAG, OF AKRON, OHIO, ASSIGNOR TO THE XXTH CENTURY HEATING AND VENTILATING COMPANY, OF AKRON, OHIO, A CORPO- RATION or OHIO.

FURNACE-RADIATOR.

Specification of Letters Patent.

Patented Feb. 2'7, 1906.

Application filed May 26, 1905, Serial No. 262,399.

radiator primarily designed for use in connection with furnaces intended to burn gas, wood, and anthracite coal, wherein the proper circulation of the products of combustion will be through a long series of circuitous flues to accomplish as great a diffusion as possible of the heat carried by the products of combustion and also to provide in connection with said radiator means whereby the products of combustion may, in one instance, be carried directly through the fiues to the ofltake-flue without further circulation there- The invention also aims to provide means for simultaneously opening all the flues in the radiator to the passage of the'products of combustion, thus shortening the length of travel of the said products and increasing the draft of the furnace thereby.

The invention further aims to provide means for opening the before mentioned flues, which will be simple and easily reached from a charging-door of the furnace at any time, so that the flues may be readily accessible for the purpose of cleaning, as well as to open them to the passage of the products of combustion to the uptake-flue. i

The invention consists, essentially, in providing a hollow cylindrical drum, through which is a concentric opening for the passage of the heated air from the lower portions of the casing through the radiator to the upper portions thereof, as well as a passage around the inside of the radiator for the products of combustion, and in making the concentric opening for the passage of the heated air extend in the form of a broken circle, the point where the break occurs in this circle being the point'where the fuel is fed to the fire-pot.

The invention further consists in providing the space between the walls of the radiatorwith a series of circumferentially-arranged baflie"- plates so disposed that the products ofcombustion after leaving the firepot will pass either in a direct course to the offtake-flue or, if desired, in a circuitous manner thereto. In accomplishing this it is designed to have the products of combustion leave the fire-pot on either side of the charging-door and there enter the circumferential flues, thus compelling, as far as possible, the filling of the entire combustion-chamber of the furnace with the products of combustion before they depart therefrom.

With the foregoing and other objects in view the invention consists of the novelconstruction, combination, and arrangement of come within the scope of the claim hereunto appended.

In the drawings, wherein like reference characters denote corresponding parts throughout the several views, Figure 1 is a perspective view of a furnace with the casing thereof in dotted lines and a portion of the outer shell of the radiator broken away to better illustrate the interior thereof. Fig. 2 is a vertical central section of the radiator at the line X of Fig. 3, and Fig. 3 a horizontal section at the line Y of Fig. 2.

Referring to the drawings, 1 represents the outer wall of the lower portion of the furnace, wherein is situated the ash-pit to, which access is had by means of the door 2, and upon this portion of the furnace is mounted a casing-ring 3, which is designed to support the upper casing. (Illustrated in the drawings by dotted lines and designated by the numeral4.) This furnace is provided with the ordinary fire-pot and grate over the ash-pit constituting a heater for the device; but as these elements are not essential to the understanding of this invention they are not shown, and upon the fire-pot of this device is mounted my improved radiator. This radiator consists of a cast-iron top member 5 and bot tom member 6, and extending between these members and surrounding the mechanism hereinafter described is an external casing 7. The bottom member 6 of the radiator is pro vided with a central opening surrounded by a downwardlyextending flange adapted to project into the firepot, whereby communication is established with the heater of the device, and this downwardly extending flange also serves to sustain and steady the radiator. The external casing 7 of the radiator is formed from continuous sheet metal, excepting where it is interrupted in front by the pouch 8, which leads from the chargingdoors 9 in the outer shell 4 to the heater. 1n the top and bottom members 5 and 6 are elongated apertures registering vertically with each other and substantially concentric with the general outlines of the radiator. Extending between the top and bottom members 5 and 6 is a second casing located adjacent these elongated apertures and conforming in outline to them, whereby there is formed an opening 10. The outer portion of this second casing is designated in the drawings by the reference-numeral 11 and the inner portion by the reference-numeral 12, and these two portions are united at their ends by curvilinear portions 14. These walls 11 and 12 constitute the shell of the upwardly-extending air-heating flue 10. The space inclosed by the wall 12 of the second casing and covered at the top by the member 5 constitutes a heating-chamber of the device and is in open communication with the heater thereof through the aperture in the bottom member 6. The space existing between the outer wall 11 of the second casing and the external casing 7 forms a second heating-chamber of my improved radiator, and this second heating-chamber is also in open communication with the heater of the device through the space existing around the curvilinear portions 14 of the second casing.

It will be stated that the top and bottom members of the radiator are held together and clamped upon the external casing 7 by means of stay-bolts 13, which may be placed at any location where necessary throughout the body thereof.

From the rear portion of the external casing 7 of the radiator there leads a direct outlet-flue 15, which is provided with an ordinary damper 16 (see Fig. 2) and is connected with a second outlet 17, which takes off from the lower portion of the casing 7. This second outlet 17 is generally provided with a check-damper 18, which is of the ordinary construction.

In order to cause the products of combustion, which arise from the heater and pass around the curvilinear ends 14 of the second casing and enter the second heating-cham ber, to travel a circuitous path and to distribute as much of their heat as possible, I provide in the second heating-chamber between the wall 11 and the external casing 7 a plurality of circumferential baffle-plates. I find that in placing these baflie-plates the best arrangement consists in providing two upper bafiie-plates 19, extending from near the curvilinear portions 14 on both sides of the radiator to near the opening where the outletflue 15 is attached to the casing 7; but their ends are separated a slight distance, forming an opening to permit the products of combustion to pass over their upper surfaces and to then turn downwardly and return toward the charging-doors 9. Below the baffle-plates 19 I place a second elongated bafiie-plate 20, whose ends start a greater distance from the curvilinear portions 14 than do the ends of the baflle-plates 19. This baffle-plate 20 extends circumferentially through the space between the casing 7 and wall 11 and approximately midway between the baffle-plates 19 and the bottom member 6. In order to make the second heating-chamber as long as possible and to cause the products of combustion to go over the top of the baffie-plates 19, I place upwardly-extending baflie-plates 21 on the member 6, which is provided with steadying-lugs 22, and I sustain their upper ends by means of removable pins 23, which pass through the baffle-plates 19, as well as the baflle-plates 21.

It will be seen from the foregoing that the products of combustion will pass from the fire-pot in the direction of the arrows in Fig. 1, over the baflie-plates 19 and around their rear ends, and from thence around the front ends of the baffle-plate 20 and from thence under the baffle-plate 20 to the outlet 17. It will be further seen that it will be necessary in order to cause this passage of the products of combustion around these various bafiieplates that the damper 16 in the outlet 15 must be in the position shown in Fig. 2; otherwise the products of combustion will pass directly out the outlet 15 and not traverse the path just described for them. It is also apparent that after the bafHe-plates 21 are removed, which may be easily done by reaching into the charging-doors, the products of combustion will pass directly through the second heating-chamber to the outlets.

When it is necessary to clean the bafHeplates 19 and 20 and the upper part of the member 6 between the casing 7 and wall 11 and the flues existing therebetween, the baffle-plates 21 are withdrawn by removing the pins 28 and lifting them out through the chargingdoors. Then a suitable utensil may be employed to remove any accumulation therein contained.

What I claim, and desire to secure by Letters Patent, is-

A radiator comprising a heating-chamber adapted to be placed in communication with a heater, a second heating-chamber surrounding said first mentioned heating chamber and in open communication therewith, said chambers being formed by top and bottom members, each of said members being provided with an elongated aperture adapted to register each with the other, an external casing connecting said top and bottom members,

' a second casing connecting said top and bottom members, located adjacent to said elongated apertures and forming in connection therewith an air-heating flue through said radiator, said bottom member being provided with a second aperture to adapt the firstmentioned heating-chamber to be placed in communication with a heater, the second heating-chamber being provided with two outlets therefrom, a plurality of baflie-plates arranged in said second heating-chamber in planes parallel with said top and bottom members, one of said bafHe-plates being elongated and spaced from the bottom member to form fiues in communication with one of said outlets, the others of said bafiEle-plates being located between the top member and said elongated bafile plate and extended over the respective ends thereof to form flues and removable baffle-plates connecting said lastmentioned baffle-plates with said bottom member.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- GEORGE MAAG. Witnesses:

C. E. HUMPHREY, GLENARA Fox.

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