US703982A - Gas-stove. - Google Patents

Description

No. 703,982. v Patented luly 8, |902.

` H. BONSOR.

GAS STOVE.

(Application filed Feb. 18, 1902.)

(No Model.)

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HEVSON BONSOR, OF BIRMINGHAM, ENGLAND.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 703,982, dated July 8, 1909. Application fled February 13, 1902. Serial No. 93,990, (No model.)

diation from heated surfaces of refractory material andV partly by the disch arge into the room of streams of pure air which have been warmed by flowing through pipes which are inserted in the fire, the surfaces of these pipes providing in themselves a portion of the radiating-surface.

In the accompanying drawings, Figure l represents a front view of the stove. In the left half the fire-bars are removed to show the construction of the parts behind. Fig. 2 is a side sectional elevation..

In the views, a is a tube,` which is supplied with a mixture of gas and atmospheric air which issues and burns at anumber of Vburners b l). The name impinges beneath a bend c,

which is provided in a number of air-pipes d d, made of a refractory material, the lower open end e of which is below the fireplace, and

the upper end f, also open, is above the fire.

The grate of an ordinary fireplace is replaced by a dead-plateV g, so as to preclude the entrance of air into the re, except thatment will be that` the Vsurface of the air-pipes and the interposed loose refractory material will be heated to brightness and radiate heat into the room. At the same time theair within the pipes d d being heated will. cause a convention draft through the pipes, and warm air,which has not been vitiatedby taking part in combustion, will be discharged into .the room through the openings ff.

The products of combustion pass to the chimney through the throat h of the stove. When circumstances permit, the most perfeet result would be obtained by closing the opening t from the room to the space j below the fire by a plate and connecting the space j by a pipe to the atmosphere outside the house. By so doing a supply ofwarm pure airto the room would be insured and the flow of cold air into the room under the doors and through chinks would be :considerably lessened, if not avoided.

A wire screenis shown covering the airdischarge holes ff and the upper portion of the fire to prevent mischievous insertion of paper, matches, or other material.

The air-pipes d d are shown made in parts to facilitate insertion and renewal.

Such a construction of air-pipe as shown would be most satisfactory; but I do not confine myself to the use of this .form in detail, but claim to include the use of any other form of pipe which is easy to make and durable, including a straight pipe.

The combination with an open grate having a bottom dead-plate and a chimney, of 'a pluralityv of vertical open-ended tubes passing upward through said dead-plate and grate and curving outwardly through the wall'of the chimney, said tubes having deflected portions or bends, and burners located directly beneath said deflected portions, substantially as described. A

In witness whereof I have hereunto set my hand in the presence of two witnesses.

HEWSON "BQNSOIt Witnesses:

J AMES COOPER, ROBERT I-IARGREAvEs.

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