US790699A - Furnace-radiator. - Google Patents

Description

N0. 790;699. I PATENT ED MAY 23, 1905. R. A.'MAY. I

FURNACE RADIATOR. APPLIGATION FILED JUNE-27,1904- 2 SHEETS-SHEET 1.

PATENTED MAY 28, 1905.

' .R. A. MAY. FURNACE RADIATOR.

APPLIOATION PILEDJ'UNE 27,1904.

2 SEBETS-SHEET Z.

Patented May 23, 1905.

PATENT OFFICE.

RUDOLPH A. MAY, OF AKRON, OHIO.

FURNACE-RADIATOR.

SPECIFICATION forming part of Letters Patent No. 790,699, dated May 23, 1905.

Application filed June 2'7, 1904- Serial No. 214,852.

To all whom, it may concern:

Be it known that I, RUDOLPH A. MAY, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement inFurnace-Radiators, of which the following is a complete specification.

My invention has a general relation to airheating furnaces, and relates especially to the construction of the radiator or drum which is commonly placed upon the combustion-cham ber of the device.

Heretofore it has been customary in constructing furnaces to place an enlarged drum or radiator upon the fire-pot orcombustionchamber to permit an increased circulation and diflusion of the products of combustion Within the furnace previous to their departure by way of the uptake-flue. In constructing these radiators the usual practice has been to make the tops and bottoms of relatively heavy cast metal and connect these by sides made from sheet metal. In doing this it has been found advantageous to construct flues or tubes through the radiator vertically for the passage of the air to be heated, so as to bring it closer to the most heated portions of the combustion-chamber and utilize as much as possible all available surface of the radiator.

into the air-space, from whence. they are car-' ried to the apartments to be heated.

The objects of my invention are to provide aradiator for the purpose described of comparatively simple construction in which all parts exposed to the direct heat of the fire will be of relatively heavy cast metal whose enduring qualities will be equal to the balance of the furnace and yet retain all desirable features as to the radiation of heat, &c., of the old style of construction.

Another object is to form the portion of the lines or air-conduits not in direct contact with the fire of sheet metal both for lightness and cheapness and to make the sheet-metal portion constituting'one member of each conduit individually capable of removal and replacement without disturbing any other portion of the radiator.

' A further object is to so construct the radiator as a whole that it will at all times havea tendency to direct the upward flow of air around andthrough it and against its most heated portions and to prevent as much as possible the free passage of the air around the outside of the radiator and along the cold outer casing of the furnace and, on the contrary, to cause it to flow toward the center of the furnace and keep it there until it enters the distribution-pipes. Y To the accomplishment of the aforesaid objects my invention consists in the peculiar and novel construction, combination, and arrangement of the various parts hereinafter described, referencebeing had to the accompanying drawings, forming a part hereof.

In the accompanying drawings, in which similar reference-numerals indicate like parts on the different figures, Figure 1 is a plan view of the interior of an air-furnace looking down upon the radiator with the side casing broken to permit such view; and Fig. 2, a side elevation of the radiator of a furnace with its connections and a portion of the fire-pot, the outer casing being in section.

In the drawings, 1 is the outer casing of the furnace, here shown as made up of a series of sheet metal cylinders held together by rings 2. This casing may be formed by brick walls, if so desired, or any other appropriate material. \Vithin this casing 1 is the stove or combustion device 3, mounted, as usual, upon an ash-pit. (Not here shown, as its presence in the drawings would not serve to aid in the explanation of this device.)

Upon the top of the combustion device 3 is placed the base 4; of the radiator, which consists,preferably,of an upwardly and outwardly flaring portion having around its outer edge an upturned flange 5. The outer configuration of this base 4 is curvilinear, with regularly occurring semicircular indentations the convolutions of which are followed by the flange 5. -Upon' this is placed the dome 6 of the radiator, having curvilinear sides 7 arranged to exactly register with the indentations in the base 4: and to nicely fit within the flange 5, by which it is accurately held in position. The upperdiameter of this dome 6 is preferably slightly narrower than the base 4, so as to give to the semicircular indentations an inward inclination toward the center of the furnace. The object of the inward inelination of the indentations 7 toward the center is twofoldviz., to permit the ready Withdrawal of the pattern used in making this dome from the sand -in making the mold therefor and to partially direct the flow of air to be heated toward the center of the device. It is generally preferable to make the top of the dome 6 crowning; but it is not absolutely necessary. Along the sides of the indentations 7 there are placed inwardly-projecting pins or lugs 8 in substantial alinement with the main axis of each groove. In order to convert these indentations 7 into air-conduits to heat air, a number of semicircular troughs or members 10 of sheet metal are made, provided at determinate intervals along their longitudinal edges with slots 9. These slots are generally L-sbaped, and their position in the trough edges is governed by the corresponding relative position of the pins or lugs 8 in the indentations 7. These troughs are so bent as-to have a certain amount of outward spring or tendency to flatten themselves and are bent together by hand when being placed in position and are forced forward with their edges in advance, so that the slots 9 will each straddle their respective lug or pin 8 and slip thereover and upon a slight downward blow will lock in place, so as to form with the in-- dentations 7 a perfect air-conduit. Any other or preferred method of fastening these troughs or members may be employed without departing from my invention. In making these troughs or members 10 it has been found preferable to make them of such length as to extend to or nearly to the outer casing of the furnace to catch and direct as much air as possible toward the heated grooves 7. It has been. found that in order to render theinward directing of the air to be heated more satisfactory it may sometimes be expedient to seat a ring or apron 11 on the lower portions of the troughs 10 or immediately therebelow which will reach to the casing l and act as a further guide to the air.

One of the indentations 7 is used to receive the uptake-flue 12 from the combustion-chamher, which may be provided with a diving-flue 13 and an extension 14, reaching to the center of the dome.

In constructing this radiator it is preferable to make the base 4 and dome 6 of relatively heavy cast metal, as they form the upper portion of the combustion-chamber and receive the direct heat from the fire, whilethe outer portions of the air-conduits in the radiator formed by the troughs or members 10 may be of only sheet metal and while substantially indestructible may readily be replaced one at a time with perfect case.

It will be readily apparent that the shape of the indentations 7 and troughs or members 10 may be altered at will and the inclination of the indentations 7 be varied or eliminated, as desired, and any form of suitable fastening devices used for retaining the troughs in place without in any way departing from my invention.

What I claim is 1. A radiator for furnaces comprising a body portion with a plurality of upwardlyextending indentations and a plurality of independent members detachabl y supported, each of said members adapted to cooperate with one of said indentations and form therewith an air-conduit.

2.. A radiator for furnaces comprising a body portion with a plurality of upwardlyextending indentations and a plurality of independent members each of which is suitably supported to cooperate with one of said indentations and form therewith an air-conduit.

3. A radiator for furnaces comprising a body portion with upwardly-extending indentations, a plurality of independent members each of which is adapted to cooperate with one indentation and form therewith an airconduit and means to suitably support said members.

4. A radiator for furnaces comprising a body portion with a plurality of peripheral upwardly-extending indentations, slightly inclined toward the vertical center of said radiator, and a plurality of independent members detachably supported, each of said members adapted to cooperate with one of said indentations and form therewith an air-conduit.

5. A radiator for furnaces comprising a body portion with a plurality of upwardlyextending peripheral indentations,all of which are slightly inclined toward a common center, a plurality of independent members each of which is suitably supported to cooperate with one of said indentations and form therewith an air-conduit.

6. A radiator for furnaces comprising a body portion with a plurality of 'ieripheral indentations to form seats, a plurality of independent members and means to support each one of said members in one of said seats to form therewith an upwardly-extendingairconduit.

In testimony that I claim the above I hereunto set my hand in the presence of two witnesses.

RUDOLPH A. MAY. Witnesses:

DELLA KIMPFLIN, (J. E. HUMPHREY.

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