US431151A

US431151A - Heating-furnace

Info

Publication number: US431151A
Authority: US
Publication date: 1890-07-01
Anticipated expiration: 1907-07-01

Description

(No Model.) 2 Sheets-Sheet 1. W. H. RIDDELL.

HEATING FURNACE.

Patented July 41, 1890.

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-- g? I!" ah! 4 (No Model.) 2 Sheets-Sheet 2. W. H. RIDDELL.

HEATING FURNACE. No. 431,151. Patented July 1. 1890.

UNITED STATES PATENT OFFIC.

WILLIAM HENRY RIDDELL, OF NORTHFIELD, MINNESOTA.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 431,151 dated July 1, 1890.

Application filed February 27, 1890- Sen'al No. 341,983. (No model.)

To all whom it may concern.-

Be it known that I, \VILLIAM HENRY RID- DELL, a citizen of the United States, residing at Northtield, in the county of Rice and State of Minnesota, have invented certain new and useful Improvements in I-Ieati11g-Furnaccs; and I do hereby declare the following to be a full, clear, and exact description of the i11- vention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to furnaces for heating buildings, and has for its object the provision of means whereby the caloric generated by the combustion of the fuel is more fully utilized to heat the incoming air. \Vith this end in View I mount on top of the furnace a pair of drums, through which the products of combustion pass on their way to the chimney, said drums being connected by a pipe, the elbow or angle of which is so sharp that no soot can lodge therein. Passing through the drums is a seriesof tubes or passages in communication with fresh'air pipes. The furnace, with its superimposed drums,is inclosed within the usual brick-work case, in the roof of which are pipes for conveying the hot air radiated from the drums and furnace to the various parts of the building. A suitable damper is arranged in the exit-flue of the furnace, and has a stem provided with a handle on its forward end,by which it can be turned to regulate the passage of the products of combustion. By closing this damper all the products of combustion can be made to make the entire circuit of both drums to the exit-pipes, or the damper can be opened and the products allowed to pass equally into the drums or a larger portion into one drum than the other, as required. For convenience of transportation the body of the furnace can be made in sections, secured together by suitable bolts at their flanged edges, and the parts can be packed for shipment by being nested one within the other. Each drum is provided with an opening closed by a door or plug,-through which soot or ashes can be removed in the usual manner. Passages'are also formed in the outer walls of the brick-work near the SolbOtlJOlD, through which air is admitted to the pipes connected to the drums. Bolts having flattened shanks are secured at intervals to the furnace-bod y and serve to detaehably secure the end plates thereto, as will be hereinafter described.

In the accompanying drawings, in which like symbols of reference are placed on like parts throughout the several views, Figure 1 is a front view of the furnace and its surrounding brick-work. Fig. 2 is a side elevation of the invention detached. Fig. 3 is a cross-section on line so at of Fig. Fig. 4 is a cross-section, and Fig. 5 a partial longitudinal section, of a furnace-body constructed in two detachable parts connected together at their flanged edges by suitable bolts.

A is the body of the furnace, and a a are bolts having flattened ends riveted at intervals apart to the ends thereof.

B B are the front and rear end plates, which are perforated to receive the threaded stems of the bolts to a, and are detachably secured in place by nuts applied thereto.

a a are the usual grate and ash-pit.

O is the door of the furnace, and O that of the ash-pit.

D D are sheet-iron drums mounted on top of the furnace and in communication by pipes d cl Withthe combustion-chamber thereof.

61 is a damper in pipe d',operated bya rod passing through the front end plate l3 and having a handle (1 d is an elbow-pipe connectlngthe drums D D, the elbow being so sharp that soot cannot lodge therein.

(1 d are passages or tubes extending diagonally through the drums, and d d are depending pipes for the admission of fresh air, connected to said passages at their upper ends and extending down below the body of the furnace.

d is the exit-flue for the products of combustion attached to drum D.

E is the brick-work casing surrounding the furnace, and e is a fresh-air pipe leading thereto.

F F are pipes for conveying the heated air radiated from the drums and furnace-body and contained in the chamber at the top of the surrounding case to the points -desired.

G is a pipe connecting with pipe (1 and leading to the chimney.

e e are plugs closing ports in the brick Work or case E, and e is the usual water-pan mounted in the front Wall of the brick-Work.

In Figs. 3 and 4c the furnace-body is shown as made in two sections A A having flanges a a 011 their meeting edges. In virtue of thls construction the parts can be nested together for transportation, and if one becomes burned out or unfit for use another can be readily substituted.

As shown, the furnace is adapted for the use of Wood or suitable equivalent material as fuel.

The furnace, with its superimposed drums, affords a large radiating-surface, and the cold air admitted through the pipes cl and passing through the passages in the drums will be quickly heated and Will pass through the pipes F F to the desired points.

The knockdown feature of the furnace 1s important, as by it the castings and heavy sections of the body can be furnished to local dealers, who will readily put them together and provide their own drums.

\Vhat I claim, and desire to secure by Letters Patent, is

1. A furnace-body, in combination with superimposed drums provided With passages therethrough forincoming air,a series of fresh air pipes leading to said passages, an elbow connecting one drum with the other, and pipes leading from the furnace-body to the drums, substantially as and for the purpose specified.

2. A furnace comprising a body provided with a grate,apair of connected drums, pipes for the products of combustion leading from the furnace-body to the drums, an elbow having a sharp angle connecting one drum with the other, a series of passages for incoming air formed in each drum, and aseries of freshair-supp] y pipes connected with said passages and extending down on each side of the furnace, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of tWo Witnesses.

\NILLIAM HENRY RID DELL.

Witnesses:

R. J. DRAKE, T. J. DOUGHERTY.