US1034866A - Safety gas-burner. - Google Patents

Safety gas-burner. Download PDF

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US1034866A
US1034866A US69208912A US1912692089A US1034866A US 1034866 A US1034866 A US 1034866A US 69208912 A US69208912 A US 69208912A US 1912692089 A US1912692089 A US 1912692089A US 1034866 A US1034866 A US 1034866A
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burner
tube
gas
jet opening
valve member
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US69208912A
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Alanson W Bowden
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium

Definitions

  • a further object of the invention resides in the provision of a burner head having arranged thereon a thermostatic tube Vcarrying a valve member normally disposed over the jet opening of the burner, sald thermostatic tube bemg so mounted as to permit of the application of a lighted taper therio whereby the expansive action of a suitable Huid contained within the tube disposes the valve member to one side of the jet opening to permit of the ignition of the gas which escapes therefrom.
  • Still another object of the invention is to provide a safety gas burner of the above ty e wherein the use of springs and similar ho ding devices is entirely eliminated, whereby the eiiiciency and durabilityy of the device is enhanced and the cost of manufacture reduced t0 a minimum.
  • FIG. 1 is a vertical section view of a gas burner embodying the present invention
  • Fig. 2 is a top plan view showing the valve member in its open osition
  • Fig. 3 is a s'ection taken on the line 3 3 of Fig. 2
  • Fig. 4 is a top plan view showing the valve member in its closed position.
  • FIG. ⁇ 5 designates the service pipe which is connected to the gas main and is provided with the usual cock 6 whereby the flow' of gas to the burner may be turned on or olf.
  • the burner consists of a cylindrical head 7 which is provided with a central longitudinally extending gas receiving chamber 8, one end of which is threaded to receive the threaded end 9 of the gas pipe. From the threaded end portion of the chamber 8 the same tapers lon 'tu'dinally to provide a jet opening 10 whic opens jupon the upper surface of the burner head.
  • the burner head is provided at its upper edge with an annular rim or bead 11 which is disposed above ⁇ t-he surface of the head.
  • a dat metal tube 12 is secured to the annular rim 11.
  • This tube com tains mercury or other expansible Huid and 'is commonlyy known as a Bourdon tube.
  • the rim 11 is recessed as at 13 to receive the end of this tube so that the end of the tube is exposed at the outer edge of said rim.
  • This Bourdon tube is of substantially semi- -circular form in plan and is also curved or inclined upwardly from its outer secured end to its inner free end as clearlyshown in Fig. 3.
  • the free end of this tube has ai? ⁇ tached thereto a valve disk 14 which is nor mally disposed' over the jet opening 10 of the burner head to prevent the'emission of gas therefrom.
  • the Iiame of a lighted match or taper is ap lied directly to the end of the Bourdon tu e at the rim 11 of the burner head 'so that the fluid in said tube is heated, thereby causing the tube to gradually expand as the tem rature increases and become slightly straightened or less curved than when in its normal position as shown in Fig. 2, so that the valve member on the free end of the tube is disposed above the surface of the burner head and at one side of the jet openin the valve member has moved to t is position, the fiame of the match or taper is applied t0 the jet o ening so that the gas issuing therefrom is ignited.
  • the expansible tube 12 and the valve member ⁇ 14 are so designed and proportioned that 10. After the temperature at the jet opening 10 or the base of the gas flame will be just sufficient to cause the valve to remain open, whereby a very rapid closure of the jet opening is -a'nd at one side of the How. Thus liability of accidental asphyxiation is prevented. e
  • What claim is 1. 4 The combination with a burner having a jet opening, of a Bourdon tube fixed at onel end to the outer surface of vthe burner bod and at the upper edge thereof for the appli'- cation of a llghted taper directly thereto, and a valve member on the other end of said tube normally disposed in contact with the upper surface of the burner head over the jet opening to close the same and movable to a position above the surface of the head jet opening by the expansion of said tube.
  • valve member being movedv to one side of the jet opening and out of contact with the surface of the head by the expansion of said tube induced by the application of a lighted taper to the fixed end thereof.

Description

A. W. BOWDEN. SAFETY GAS BURNER. AAAAAAAAAAAAAAAAA PB..20, 1912.
1,034,866. Patented Aug. 6, 1912.
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UNITED STATES PATENT oEEIoE.
ALANSON W. IBOWDEN, 0F GREENVILLE, MAINE.
SAFETY GAS-BURNER.
Specication of Letters Patent.
Patented Aug. 6, 1912.
Application'led April 20,' 1912. Serial No. 692,089.
I mg device whereby the escape of unlighted gas from the burner is prevented.
A further object of the invention resides in the provision of a burner head having arranged thereon a thermostatic tube Vcarrying a valve member normally disposed over the jet opening of the burner, sald thermostatic tube bemg so mounted as to permit of the application of a lighted taper therio whereby the expansive action of a suitable Huid contained within the tube disposes the valve member to one side of the jet opening to permit of the ignition of the gas which escapes therefrom.
Still another object of the invention is to provide a safety gas burner of the above ty e wherein the use of springs and similar ho ding devices is entirely eliminated, whereby the eiiiciency and durabilityy of the device is enhanced and the cost of manufacture reduced t0 a minimum.
. With the above and other' objects in view, the invention consists in the novel features of construction and in the arrangement and combination of parts, hereinafter more fully described, pointed out in the claims and shown in the accompanying drawings, in which- Figure 1 is a vertical section view of a gas burner embodying the present invention; Fig. 2 is a top plan view showing the valve member in its open osition; Fig. 3 is a s'ection taken on the line 3 3 of Fig. 2, and Fig. 4 is a top plan view showing the valve member in its closed position.
Referring in detail to the drawing `5 designates the service pipe which is connected to the gas main and is provided with the usual cock 6 whereby the flow' of gas to the burner may be turned on or olf.
The burner consists of a cylindrical head 7 which is provided with a central longitudinally extending gas receiving chamber 8, one end of which is threaded to receive the threaded end 9 of the gas pipe. From the threaded end portion of the chamber 8 the same tapers lon 'tu'dinally to provide a jet opening 10 whic opens jupon the upper surface of the burner head. The burner head is provided at its upper edge with an annular rim or bead 11 which is disposed above `t-he surface of the head.
To the annular rim 11, one end of a dat metal tube 12 is secured. This tube com tains mercury or other expansible Huid and 'is commonlyy known as a Bourdon tube.
The rim 11 is recessed as at 13 to receive the end of this tube so that the end of the tube is exposed at the outer edge of said rim. This Bourdon tube is of substantially semi- -circular form in plan and is also curved or inclined upwardly from its outer secured end to its inner free end as clearlyshown in Fig. 3. The free end of this tube has ai?` tached thereto a valve disk 14 which is nor mally disposed' over the jet opening 10 of the burner head to prevent the'emission of gas therefrom. v
In the use of the device the Iiame of a lighted match or taper is ap lied directly to the end of the Bourdon tu e at the rim 11 of the burner head 'so that the fluid in said tube is heated, thereby causing the tube to gradually expand as the tem rature increases and become slightly straightened or less curved than when in its normal position as shown in Fig. 2, so that the valve member on the free end of the tube is disposed above the surface of the burner head and at one side of the jet openin the valve member has moved to t is position, the fiame of the match or taper is applied t0 the jet o ening so that the gas issuing therefrom is ignited. It is understood that the expansible tube 12 and the valve member` 14 are so designed and proportioned that 10. After the temperature at the jet opening 10 or the base of the gas flame will be just sufficient to cause the valve to remain open, whereby a very rapid closure of the jet opening is -a'nd at one side of the How. Thus liability of accidental asphyxiation is prevented. e
From the foregoing it is believed that the construction and manner of operation of my improved safety burner, will be clearly understood.
Owing to the simplicity of the invention, it will be obvious that the same is reliable, eflicient in its action" and may also be produced at very small cost.
While I have shown and described the preferred form and proportions of the various parts, it will be obvious that the device is susceptible of considerable modification without departing from the essential features or sacrificing any of the advantages of the invention.
What claim is 1. 4 The combination with a burner having a jet opening, of a Bourdon tube fixed at onel end to the outer surface of vthe burner bod and at the upper edge thereof for the appli'- cation of a llghted taper directly thereto, and a valve member on the other end of said tube normally disposed in contact with the upper surface of the burner head over the jet opening to close the same and movable to a position above the surface of the head jet opening by the expansion of said tube.
2'. The combination with a burner having a jet opening andan annular flange extending above the up r surface of the blirner body, of a Bourdin tube fixed at one end to said flange, and normally curved inwardly and upwardly' therefrom, and a valve member secured to the free end of the tube normally engaging the upper surface of the burner and disposed over the jet opening to close the same, said tube being expanded by the application of a lighte taper to the fixed end thereof whereby the.
free inner end of thejtube and normally disposed in frctional engagement with the upper surface of the burner body and over the jet opening, said valve member being movedv to one side of the jet opening and out of contact with the surface of the head by the expansion of said tube induced by the application of a lighted taper to the fixed end thereof.
In testimony whereof I hereunto aflix my signature in the presence of two witnesses.
ALANSON W. BOWDEN. Witnesses:
F. W. ALLEN, E. B. CROWLEY.
US69208912A 1912-04-20 1912-04-20 Safety gas-burner. Expired - Lifetime US1034866A (en)

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