US612608A - hulbert - Google Patents

Description

No. 612.608. Patented Oct. l8, I898."

S. C. HULBERT.

BACK FLUE FOB RANGE OVENS.

(Applicationfiled Sept. 27, 1897.) (No Model.) 5 Sheets8heet I.

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BACK FLUE FUR RANGE ovals.

(Application filed Sept. 27, 1897-.)

(No Model.) 5 Sheets-Sheet 2.

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No. 6l2,608.

S. DQHULBERT. BACK FLUE FOR RANGE OVENS.

(Application filed Sept. 27, 1897.)

5 Sheets-Sheet 3.

(No Model.)

L. E a-- \A/ITNEEEIES N0. 6l2,608. Patanted 0012. 18, I398. 840. HULBERT.

BACK FLU E FOR RANGE OVENS.

A lication filed Sept. 27, 1897.)

5 Sheets-Sheet 4.

(No Model.)

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' Patented Oct. l8, I898. S. C. HULBERT. BACK FLUEFOR RANGE OVENS.

5 sheets-sheet 5.

(Application filed Sept. 27, 1897.)

(No Model.)

I I I WTNEESEE amt STATES SEYMOUR o. HULBERT, or GENEVA, NEW YORK, ASSIGNOR 'ro THE PHILLIPS a CLARK STOVE COMPANY, or SAME PLACE.

BACK FLUE FOR RANGE-OVENS.

SPECIFICATION forming part of Letters Patent No. 612,608, dated October 18, 1898..

Application filed Septemb 27, 1897- fierial No. 653,115. (No model.)

To all whom it may concern:

Be it known that I, SEYMOUR O. I-IULBERT, of the village of Geneva, county of Ontario, and State of New York, have invented new and useful Improvements in Back Flues for Range-Ovens, of which the following is a specification.

My invention relates to cooking-ranges and certain improvements in the manner of constructin g and connecting the flue which leads from the range-oven bottom flue to the exit at the back of the range, by which improvements the heat and gases passing to the exitpipe under the draft impulse are made better available to heat the oven.

Accompanying this specification to form a part of it there are five plates of drawings containing eight figures illustrating my in-. vention, with the same designation of parts by letter-reference used in all of them.

Of the illustrations, Figure 1 is an elevation of a range with my improvement applied thereto and with What is the back of the range whereat the exit-pipe is located shown as facing the view. Fig. 2 is a side elevation of a plate forming the outer wall of the back ascending flue of the range and shown as detached and with what is its interior surface when in position shown as facing the view. Fig. 3 is an elevation of the range with what is its back shown as facing the view and with the plate forming the rear wall of the ascending flue back of the oven removed. Fig. 4 is a central vertical section of the range, taken from end to end. Fig. 5 is a transverse section taken on the line :0 0c of Fig. 6. Fig. 6 is a section taken on the line 00 m of Fig. .5. Fig. 7 is a transverse section taken on the .line x 934 of Fig. 1, and Fig. 8 is another trans verse section taken on the line :0 a"? of Fig. 1.

The several parts of the range thus illustrated are designated by letter-reference, and the function of -the parts is described as follows:

The letters A designate the ash-pit section of the range, P the fire-chamber section, and F" the horizontally-arranged flue passing over the top i of the oven 0, between the latter and the pot-hole top of the range, (indicated at T,) said flue F conducting the heat and ranged between the bottom of the latter and the range-bottom B The flue-space beneath the oven is divided in two parts F and F by the vertically-placed and diagonally-arranged flue-strip S, and the heat and gases descending through the flue F enter the horizontally-arranged oven bottom flue F to pass toward the fire-chamber end of the range around the end (P of the flue-strip S to enter the other bottom flue part F, and to return through the latter and by means of the opening 0 to enter the ascending flue F upon the upper end of which the exit-pipe collar is placed.

All of the beforenamed parts, excepting those forming the ascending back oven-flue F as I construct and connect it, are wellknown features of range structure and to which, apart from their combination with my improved construction and connection of the ascending flue back of the even, I make no claim.

The letter P designates a plate forming the rear wall of the range and also the rear wall of the oven, and where forming the latter it is provided with eXteriorly-projected flanges f, as shown at Fig. 3, and at its upper end this plate P is provided with a passage way 1, opening out from the oven top line F, which opening is provided with a damper D, and at its lower end this plate P is made with a passage-way 0 opening out from the oven bottom flue F", at the end of the latter most remote from the fire-chamber end of the range.

The letter N designates a plate constructed to attach to the outer face of the plate P so as to produce thereon where the latter forms the rear wall of the oven an ascending flue back ofthe latter, with the exit-pipe collar E formed in part on this plate. This plate N on its outer edges c is exteriorly convex to form the flue, which it incloses against the rear wall of the oven, with its outer surface where extending inwardly from its rounded edges flat. ,This plate N is provided with a channel nioutwardly projected from the plate in and which channel is diagonally extended from its top to its bottom, with said channel at its upper end closing around the opening I in the flue F, and at its lower end this channel exteriorly closes around the opening leading from the oven bottom flue F This plate N is connected to the plate P forming the rear wall of the oven by being cemented at its inturned edges to the flanges f and by screw-bolts 5 The operation of the range thus constructed and arranged to be operated is as follows:

When fire is kindled in the fire-chamber, to have the fire start promply the damper D is 'opened, so that the products of combustion evolved from the fire will pass directly to the exit-pipe. \Vhen the fire has become well ignited and it is desired to heat the oven, the damper D is closed, which causes the heat and gases to pass through the flues F, F F and F to enter the flue F at the back of the oven and to .pass from thence to the exit. By forming the flue F upon the oven-back and constructing it with the channel 02 projected diagonally across the rear Wall of the oven, with it extending downwardly to inclose within the flue F the opening 0 and upwardly to inclose the opening I, this channel furnishes a passage-way for the more rapidlymoving currents of heat passing through the flue F inclosing them against the rear wall of the oven in their passage, while the more slowly-moving currents of the heat Where within the flue at each side of the channel a also tend to heat the oven-side, and thus the oven of a range can be heated at the back by a broad or sheet flue in which the contingency of a trap occurring to interfere with the operation of the draft movement through a broad sheet-flue to an exit-pipe is avoided by the construction of the channel a as applied to and combined with such a flue.

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

1. The combination with arange-oven provided with a fire-chamber at one of its ends and having a flue passing from the fire-chamber over the oven-top, thence down at one end of the oven, and thence to pass beneath the oven toward the fire-chamber end of the range, and to return to the opposite end of the range; of an ascending flue formed on the back of the oven to cover the latter, and connecting with the oven bottom flue at its return end, and with the top flue by an opening formed in the latter, having a damper; said ascending flue having an outwardly-proj ected channel extending diagonally from the bottom to the top of said back flue, and at its upper end having thereon the exit-pipe collar substantially as and for the purposes set forth.

2. The combination in a range having the fire-chamber section P, the oven 0, and the lines F, F F and F of the rear ascending flue F arranged to cover the back of the oven, and provided with the outwardly-projected, and diagonally-extended channel of, connecting at 0 with the flue F and at I, with the flue F, and at its upper end connecting with the exit-pipe collar, constructed and arranged to be operated substantially in the manner as and for the purposes set forth. Signed at Geneva, Ontario county, State of New York, this 21st day of September, 1897, and in the presence of the two witnesses whose names are hereto written.

SEYMOUR C. I-IULBER'I. WVitnesses:

GEO. F. ANNAS, HORACE WEBSTER.

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