US1095580A - Oxyacetylene and similar burner. - Google Patents

Description

P. KRAUSS. OXYAGETYEENE AND SIMILAR BURNER. APPLICATION FILED APR. 16, 1912.

1,095,580, Patented May 5, 1914.

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FRIEDRICH KRAUSS, d)? MUNICH, GERMANY.

OXYACETYLENE AND SIMILAR BURNER.

1 all whom, it may concern:

lie it known that I, FRIEDRICH :KRAUSS,

Specification of Letters Patent.

Application filed April 16, 1912. Serial No. 691,233v

varia, Germany,.formerly of Vienna, rius- 5 tria-Hungary, have. invented certain new and useful Improvements in Oxyacetylene and dimilar Burners. of which the followin is a specification.

TH invention relates to oxyacetylene and similar burners, by means of which an intensely hot .flame may be produced. In burners of this type, it is the general practice to supply oxygen to the flame after ignition of the inflammable gas in the air, and

was a result of this practice very considerable qua-ntitiesof soot are deposited on the walls of the conduits before the oxygen is admitted, particularly if a carbonaceous gas, such as acetylene be employed. This deposit detrimentally affects the actionof the burner.

and causes the dissemination of noxious odors in any inclosure wherein the burner is used. Such soot deposit als'o frequently causes back flash of the flame, resulting in premature ignltion.

The principal object of my invention is to eliminate, in a burner of thistype, the disadvantages above referred to and I purpose to' accomplish this object by providing sui a e means or 'xc u in a mos aeric t bl f o l d g t p air from the gas conduit as soon as the fuel.

supply of oxygen is permitted to flow to the flame. The means which effect this opera tion may be so constructed as to admit at- "mospheric air to the gas conduit immediately upon stoppage of the oxygen supply.v

The invention includes the novel structural features and combinations of parts hereinafter particularly claimed, and fully described in the following specification, referen'ce being'had to the accompanying draw- "ing, wherein- Fi'ure 1 is a fragmentary elevational view. illustratively embodying one form of it the invention; Fig. 2 is a similar view of a somewhat modified form, intended particularly for use as a torch or blow pipe for welding metal; and Fig. 3 is a vertical sectional view of a further modified form of.

the invention.

Paton ted May 5, i914.

flame, atn'iospheric air is excluded from the gas conduit while when the flow-of oxygen is stopped no impediment is offered to the admission of atmospheric air to the gas couduit. y I

llcii'erring to the drawing, and particularly to Fig. 1. thereof, A denotes the gas conduit provided intermediate its ends with one or more orif A constitutes, It will be understood that at one end the tube A communicates with a source of gas (not shown) and at the opposite end supplies the gas to a burner tip or nozzle (not shown). Rotatably mounted on the tube A, is a sleeve B having orifices therein which are adapted to register with the orifices in the tube A. The sleeve B is provided with,

or has formed integrally therewith. a rack.

F preferably circular in form, for a purpose to be presently described. Arranged adjacent the Bunsen tube A, is a tube or pipe 0. one end of which opens into the tube A, and the other end of which is in communication with a source of oxygen under pressure (not shown}. The tube 0 is provided to suppl oxygen to the flame. The passage of oxygen through the tube 0 into the tube A is controlled by a valve 10, the stem 11 thereof having fixed to one end a pinion E meshing wilh'thc rack F. and to the other end a haudle C by means of which the valve 10 may be operated. When the valve 10 is turned by the handle C to permit oxygen to flow through the pipe 0 into tube A, the pinion E will be revolved, causing the sleeve 13 to rotate until its intact portions entirely or partially cover the orifices a in the tube B. By entirely closing; these orifices, atmos: pheric air is excluded from the Bunsen tube, and sooting is thus eliminated. Upon movement of the valve 10 to entirely close oif the flow of oxygen, the sleeve B is rotated. in

the opposite direction, so that the orifices therein register with the orifices in the tube A and an adequate supply of atmospheric. air may flow into the latter. By reason of this arrangement. it will be apparent that the device may be employed either as an.

ordinary Bunsen burner, or as a burner in which gas and oxygen under pressure may be burned. that the device may be so operated as to only partially open the valve ,10; which will result in only partially closing the orifices a in tube A, and conversely, by only partially ces 0. The perforated tube 1 n efi'ect, a Bunsen burner.-

Itwill, of course, be apparentv n int closing the valve l0 the or I" only partially uncovered. in this manner the quantity of atmospheric air flowing to the Bunsen tube may be accurately proportioned to the quantity of oxygen supplied to the flame, oiflin other words, the-orifices a provide an adjustable auxiliary air supply means for a burner of this type.

In the form of invention shown in Fig. 2, A is the Bunsen tube provided with orifices a, and B is a sleeve having orifices adapted to register with those in the tube A. The sleeve B is provided with a longitudinal, vertically extending rack K, in mesh with a pinion carriedon the stem of the valve L which governs the flow of oxygen through the pipe 0 The valve L is actuated by the handle G.

The operation of the modified form of invention just described is similar to that of Fig. 1, except that the sleeve B is reciprocated vertically, instead of being rotated, to open and close the orifices a in the Bunsen tube A.

In Figs. 1 and 2, I have shown a manually operable valve for controlling the outflow oi oxygen and for actuating the sleeves B, while in- Fig. 3 the-valve acts entirely automatically, and the movement of the sleeve B being dependent on that of the valve is also automatic.

Referring to Fig. 3, A designates the Bunsentube having the orifice a therein."

and i3 is the sleeve having an orifice a therein. The lower end of the oxygen tube 0 opens into the lower end of a two part valve .casing Z, divided interiorly by an approximately central diaphragm D of flexible material. The valve casing Z communicates, by means of a flexible tube or hose W, with a source of oxygen (not shown), ing from-the sleeve B substantially at right angles to the axis thereof is an arm 12, near the outer end .of which is secured a stem at, passing vertically through approximately the central part of the valve casing Z; At its lower end, the stem 14 is provided with a conical valve plug N adapted to engage the seat a: into which the admission end of the pipe 0 opens. The valve plug is normally forced against the seat a: by a spiral spring S encircling the upper part of the valve stem u, one end of said spring engaging the upper inner part of the valve casing Z and the other end pressing downwardly on a collar T carried by'the stem u intermediate its the valve casing the spring S will maintain ends. When there is no flow of oxygen through the tube W into the chamber M of the valve plug N against itsseat 00, whereby the sleeve B will be in its lowermost position, the orifice a thereof registering with the orifice a, in the tube A and admitting atmospheric air to the latter. As soon as oxygen is admitted to the valve casing Z the Proj ectcha n will increase sat li raise the .iaphragm D against the tension of spring 55. raising the diauhragm, the stema is raised, unseating the plug hi whe eby gen is permitted to iiow into the pipe '0, and elevating the sleeve 3* so that an intact portion thereof either entirely or partially covers the orifice a in the tube A thus reducing or entirely cutting oil the supply of ospheric air to the latter. When the ox n supply to tube W is discontinued the S will again depress stem a, seating the N and by lowering the sleeve B cause orifices a and a to register.

I desire it to he understood that while I detail, the same is susceptible of modification, without dep. ting from the spirit of the invention defined by the scope of the appended claims.

What I claim is z- 1 LA burner of the character specified, embodying therein a gas conduit, an oxygen conduit, means for controlling the flow of oxygen through said oxygen conduit, means for supplying air to the gas conduit and means actuated from said first named means ,for controlling the flow of atmospheric air to said gas conduit.

2. Aburner of the character specified, embodying therein a gas conduit having orifices-' through which air may be supplied to said gas conduit, an oxygen conduit, means for controlling the How of oxygen through said oxygen conduit, and a sleeve operable by the movement of said means to cover or uncover the orifices in said gas conduit. to

ated by the latter for closing said orifices when said oxygen conduit is opened by the valve, and opening said orifices when said oxygen conduit is closed by the valve.

4. A bturncr of the character specified, embodying therein a gas conduit, means for supplying air to'the gas conduit, means for controlling the flow of atmospheric air thereto, amoxygen conduit, a valve controlling the flow of oxygen throughsaid oxythe flow of atmospheric air thereto, a stem casing having therein avalve seat into which conduit, an automatically operating valve crease in pressure therein to raise said stem for controlling the flow of oxygen through said oxygen conduit, means for supplying air to said gas conduit and means actuated by the movement of said valve for controlling the fiow of atmospheric air to said gas conduit.

6. A burner of the character specified, embodying therein a gas conduit, an oxygen conduit, an automatically operating valve for controlling the flow of oxygen through said oxygen conduit, means for normally closing said valve, means for supplying air to said gas conduit and means connected to said valve for controlling the flow of atmospheric air't-o said gas conduit.

7. A burner of the character specified, cmbodying'therein a gas conduit, an oxygen conduit, a valve casing in communication with one end of said oxygen conduit, means for supplying air to said gas conduit, means movable on said gas conduit for-controlling in said casing and connected to said second named means, and means within said casing and adapted to be actuated by the pressure therein for actuating said stem to move said second named means on said gas conduit.

8. A burner of the character specified, embodying therein a gas conduit having orifices through which air may be supplied to' said gas conduit, an oxygen conduit, a valve one end of the oxygen conduit opens, an orificed sleeve movable along said gas conduit, astem reciprocable in said casing and connected to said sleeve, a valve plug at one end of said stem, means for normally depressing said plug againstsaid seat whereby the orifices in said gas conduit and said sleeve, respectively, register, and means within said casing and responding toinand to control the flow of of said valve.

to partially or entirely close the orifices in the gas conduit. I 9. A burner of the character specified,

whereby said auxiliary air supply is in versely proportioned to said oxygen'supply.

10. A' burner of the character specified,

embodying therein a gas conduit .having orifices through which air may be admitted to said gas conduit, an oxygen conduit for supplying oxygen to admix with the gas fed to said gas conduit, and means for varying the area of said orifices in inverse proportion to the quantity of oxygen supplied through said oxygen conduit.

11. A burner of the character specified, embodying therein a gas conduit having orifices through which'air may be admitted to said gas conduit, an oxygen conduit for supplying oxygen to admix with the gas fed to said gas conduit, means for varying the area of said orifices relatively-to the quantity of oxygen supplied through said oxygen conduit, and means operable to simultaneously operate said first named means oxygen through said oxygen-conduit.

12. A burner of the character specified, embodying therein a gas conduit having orifices through which air may be admitted to said gas conduit, an oxygen conduit for supplying oxygen to admix. with the gas fed to said gas conduit, a sleeve movable on said gas conduit for varying the area of the orifices in the latter, a valve for controlling the flow of oxygen through said oxygen conduit, and cooperating means on said sleeve and said valve whereby, upon movement of the latter, said sleeve is actuated to a degree corresponding with the extent of movement FRIEDRICH KRAUSS.

Witnesses:

A. V. W. Co'rrER, FRIEDRICH V. BRficKNER.

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