US1278429A - Apparatus for the autogenous working of metals under water. - Google Patents

Description

F. W1 BRUSGH & W. F. I. BEYER. APPARATUS FOR THE AUTOGEIIOUS WORKING 0F METALS UIIUER WATER. APPLICATION FILED IIIAYZZ. I915.

LWSAQQD Pa'tentffid Sept. 10, 1918,.

. To all whom it may concern: c

' sure;

FRIEDRICH WIL HELM BRUSCH AND WALTER FRANZ JOSE BEYER, F DORTMUND, ,GERMANK ASSIGNOBSTO DE'UTSCH-LUXEMBURGISCHE BERGWERKS-UN'D Htl'TTEIM- AK'I'IENGESELLSGHAFT, OF BOGHUM, GERMANY.

' APIARATUS FOR THE AUTOGENOUS WORKING OF METALS UNDER WATER.

Be itlgnown that we, FRIEDRICH WILI-IELMV "Bunsen and- WALTER FRANZ Josnr Berna,

both citizens of .the German Empire, resid-- ing at Dortmund, in theKmgdom oi- Prussia German Empire, have invented new an useful Improvements in Apparatus for the Autogenous Working of Metals Under Water, of which lhefollowingis, a specification. a

Our invention'melates toiapparatus for the autogenous working of metals-under water. When working metals under water by means of autogenous burners means must be provided for protecting the flame of the burner from the water and 'the like.

I. Heretofore ithas been suggested to provide suggested to provide means inconnection a casing surrounding the ame, placing the same on the metal to be worked, and removing the water therefrom. It has; also been with the burner whereby compressed gas is discharged around the burner so asto provide a layer of gas invtheform of a cylinder inclosing the flame. Our invention is based on the discovery that the flame can be.

brought to action under the water without being thus protected by mechanical means and without providing a cylindrical sheet of a gas. We have found that the flame can be thoroughly protected against the water by means of one, two or more jets o a compressed gas which are discharged a the side of the flame and do not form a closed cylindrieal sheet. Thereby the consumption of compressed gas is materially reduced as compared to the old method in which the gas surrounded the flame, and as compared to the mechanical means for protecting the flame; our improved apparatus is more simple in operation, and it enables the operator to have access to the point which is being worked and to apply thereto soldering media and the like. I

In order that our invention be more clearly understood, an apparatus suitable for--carrying the same into efi'ect has been sh 'bwn by wayef-example in the accompanying drawing, in which Figure 1," is a side view of the burner, and Fig. 2, is a bottom view showing the dis:

char e end'of the burner and the nozzles for ischarging the jets 01 gas."

In the example'shown 1n the drawin Specification of Letters lPatent. Fateniggd Sept 10, 1918, ap ucatio 'mea'm e2, 1915. Serial No. eases.

the burner is equipped with two nozzles for discharging compressed gas, which nozzles are so disposed as to discharge the jet of compressed gas substantially in a direction parallel to the flame. But we wish it to be understood, that our inventionis not limited to the example shownin the drawing, and that the number of nozzles for discharging jets of compressed gas which shows the best results as to economy and efliciency depends on the conditions of each particular case.

Referring now more particularly to the figures, the burner 1 may be constructed in any known or preferred way. As shown it is connected with supply tubes 2 and 3 for hydrogen and oxygen respectively, as is known in the art. For holding the burner in position for working on the metal, the upper surfaceof which has been indicated in Fig. 1 by the numerals, the burner-is equipped with wheels 5 which hold the same at the proper distance from the metal, and it is preferably advanced in the direction of the arrow a. For preventing the water from having access to the flame we provide a nozzle or nozzles 6 and 7 which are connected with a suitable supply tube 8 for supplying a suitable compressed gas such as carbonic acid or .the like, and we arrange the said nozzle or nozzles in such a way, that the jet of air or gas is discharged therefrom slightlv above-the lower face of the burner 1. The nozzle or nozzles 6 and 7 for the compressed gas are mounted in such a way, that the direction of the jet discharged therefrom can be varied within certain limits, according to circumstances.

In respect thereof Fig. 1 shows in full lines nozzles 6 and 7 having their axes parallel to the flame of the burner; however, at 10 joints-or articulations of any known or suitable construction are provided which "permit angular adjustment of said nozzles 6 and 7 within certain predetermined limits, that 1s, within a small range, such as is for example shown with dotted lines. But in any case, the function of the jet or, jets is "toward the flame, so that the axial lines of the intersect each other below the core 9 on the flame as indicated by the arrows. tubes 2, 3, and 8 of the apparatus are rigidly connected together by means of suit able connections or clampsll, so as to form tended to by the diver.

As is shown in the figures, we prefer to one single apparatus which can be easily atdispose the nozzles 6 and 7 a little above the nozzle of the burner. Thereby the jets of compressed gas are not liable to blow out the flame, which might otherwise be the case. In the preferred form shown in the figures the nozzle or nozzles for the compressed gas are arranged in such a way, that the jets dischaigged therefrom are projected or di rected within a plane through which the burner is moved, and so that a jet is produced in front of the burner moving over the metal. Thereby the preheating of the blank is effected more thoroughly, because the water is removed from the surface to be worked. By discharging the jet of gas in a direction parallel to. the flame or substantially so and at low velocity, the flame is not deflected and its hottest zone or core 9 not displaced, which would otherwise be the case, where the jet acts at one side of the flame. In someca'ses we prefer to provide two nozzles for compressed gas for prevent,

ing deflection of the flame.

In the type of torch wherein the flame was enveloped in a protecting mantle of air or gas, as carbonic acid gas, the air or gas consumption was so great that a compressing plant was required to supply the same during sub-aqueous operations, and it has been a difficult problem, occupying engineers for some time, to find some way of dispensing with such cumbersome auxiliary apparatus.

Vi e beliv'e we are the first to dispense with such apparatus, and this is due to our discovery that the flame need not be enveloped in a protecting gaseous mantle, so that one or only a few air or gas jets need be used, preferably so directetd that these jets will be parallel to the flame. We are thereby c11 ahlcd to carry out sub-aqueous operations with the torch extending over a long time, and provide the necessary gas supply, say of carbonic acid from the usual carbonic acid bottles or steel flasks, thus dispensing with all compression.

As already mentioned, the one jet or the several jets of compressed gas act so as to guide or steady the flame. Consequently, said jet or jets must as a rule, alter the flame little as possible, but before all, it is essential that, as already nmntioi'ied, the hot-- test zone or core of the flame be under no circumstaimes displaced or deflected, because, according to our trials and experience, in sub-aqueous operations, a very important function of the flame is to effect the preheatof the burner, while the flame taken as a whole, is much longer. Therefore, the jet or jets of compressed gas mayeventually deform somewhat the flame proper as longas the hottest portion of the flame, i. e.,.its core, remains intact. As already pointed out, another advantage of the jet or jets of com pressed gas is that the same make the blank water-free in the direction of cutting or welding and, what is more, at the very place in which for a successful operation, the blank is to be preheated during the progress of the work. We claim:

" 1. In a subaqueous torch, two nozzles arranged side by side, means for ejecting a flame from one of said nozzles, means for ejecting non-combustible gas from the other nozzle while submerged to prevent water from reaching the flame from that side on which the non-combustible gas ejecting nozzle is arranged, the latter being arranged to project the non-combustible gas onto the" point actedupon blank at a point beside the by the flame. V

2. In a subaqueous torch, a flame ejecting nozzle, a non-combustible gas nozzle arranged in front of and at theback of the flame ejecting nozzle, and means to eject,

non-combustible gas from the front and rear nozzles to form a substantially fiat sheet of non-combustible gas, whereby two sides of the flame, are free.

. 3. In a subaqueous'torch, a flame ejecting nozzle, a non-combustible gas nozzle: arranged in front of and at the back of the flame ejecting nozzle, and means to eject non-combustiblc gas fromthe front and rear nozzles to form a substantially flat sheet of I non-combustible gas, wherebytwo sides of the flame are free, and means on the torchto direct its movement 'longitudinallyof the sheet of gas; V 4'. In a subaqueous torch, a flame ejecting nozzle, means to move the latter, an angu-v larly adjustable nozzle in front" of and at the back of the flame ejectingnozzle' and arranged to direct in the plane of movement of the latter, jets slightly inclined toward said flame, whereby the a ial lines of" the front and rear nozzles intersect each other below the core ofthe flame without disturbing the core.

In a sub-aqueous torch for cutting and; Welding metals, means for separately 1 2 plying the constituents'of a completely combustible gas mixture, a burner at which said constituents form a flame, means on the burner to direct its movements over thesurfaceiof the blank,-and angular-1y adjustable jet devices in front and at the back of the burner and arranged to direct in, theplane of movement of the burner and on a portion of the circumference only of the flame jets slightly inclined toward said flame, so that the axial lines of said jets intersect each other below the core of the flam' without disturbing said core.

6. In a sub-aqueous torch for cutting and welding metals, means for separately sup- Elying the constituents of a completely comustible gas mixture, a burner at which said constituents form a flame, means on the burner to direct its movements over the surface of the blank, and angularly adjustable jet devices terminating slightly above the burner opening in front and at the back of the burner, and arranged to direct in the plane of movement of the burner and on a portion of the circumference only of the flame jets, slightly inclined toward said flame, so that the axial lines vof said jets intersect each other below the core of the flame without disturbing said core.

In witness whereof we havechereunto set our hands in presence of two witnesses.

FRIEDRICH, WILHELM BRUSCH, WALTER FRANZ JOSEF BEYER. Witnesses JOSEPH WYNEN, J. D. ZIESECKY.

Images