US1195298A

US1195298A - Cutting-torch

Info

Publication number: US1195298A
Authority: US
Publication date: 1916-08-22
Anticipated expiration: 1933-08-22

Description

R. VUiLLEUMlER. CUTTING TORCH. APPLICATION man 05012.1913.

Patented Aug. 22, 1916.

WITNESSES:

, UNITED STATES PATENT OFFICE.

RUDOLPH VUILLEUMIER, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO THE SAFETY CAB HEATING &, LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

CUTTING-TORCH.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed December 12, 1913. Serial No. 806,162.

To all whom it may concern:

Be it known that I, RUDOLPH VUILLEU- MIER, a citizen of the United States, residing in New Rochelle, county of Westchester, and State of New York, have invented a new and useful Improvement in Cutting-Torches, of which the following is a description.

This invention has reference to cutting torches, and particularly relates to torches adapted to utilize gases for the purpose of cutting metals. I

Among the objects of my invention may be noted the following: to provide a torch with a tip adapted to utilize oxygengas, in combination with some other gas or gases, as a means for cutting metals; to prpvide a gas torch, for cutting metals, having means for increasing its. efliciency in operation by reducing the volume of gas necessary to be used in a given operation and, at the same time, increasing the speed of operation of the torch, thus decreasing the time for performing any given operation with the torch; to rovide a cutting torch with a tip having a flame protector adapted to largely eliminate the entrainage of air; to provide a combination of means by which gases may be combined and properly distributed within the tip of the torch, so as to provide the effective flame. while anther of the gases may be led independently to the point of flame production, so as to become effective in the use of the torch; to provide a cuttingtorch with means by which the flame may be materially shortened and intensified by automatically mixing the gases and confining the combustion thereof within a chamber,

thus avoiding the diluent effect of inert nitrogen upon the other gases used; and to provide a torch-tip which 15 simple, compact, effective and economical in operation, and which may be economically produced.

With the above objects in view, and others which will be detailed during the course of this description, my invention consists in the parts, features, elements and combinations thereof hereinafter described and claimed.

In order that my invention may be clearly understood, I have provided drawings wherein:

Figure 1 is a sectional elevation of a torchtip and so much of the associated parts as are deemed necessary to illustrate the application of my invention; Fig. 2 is a transextended into a reduced tlon 9, receiving a coupling-nut 10, through verse section substantially on the line 2-2 of Fig. 1, looking in the direction of the arrow adjacent said line; Fig. 3 is a transverse section substantially on the line 3-3 of Fig. 1, looking in the direction of the arrow adjacent said line; Fig. 4 is a section substantially on the line 4-4, Fig. 1, looking in the direction of the arrow adjacent said line; Fig. 5 is an enlarged view in sectional elevation, showin the executive end of the tip and substantially the mode of action of the gases; and Fig. 6 is a sectional. elevation of the executive end of the tip, showing another form of construction contemplated by me.

Referring to the drawings, the numeral 1 indicates a union-nut, which couples the shank 2, of the torch-head 3, to the tube 4, containing a passage for mixed gases, this structure and the means by which the said gases are mixed being, in all. material respects, substantially the same as set forth in my application filed September 29, 1913, Serial No. 7 92,287; and it should be understood that my present invention in tips for cutting torches contemplates the use of an admixture of oil-gas and air preliminarily combined in much the same manner as set forth in my said application. In my present invention, the torch-head is provided at its lower end with a reduced, screw-threaded portion 5, upon which is threaded the enlarged end 6, of the sheath 7 of the tip, the executive end of which sheath is tapered to the form of a hollow truncated cone, as indicated at 8. The upper end of the head 3 is screw-threaded porthe upper end of which is extended the pipe or tubing 11, the lower end of which is provided with an enlargement 12, adapted to set against the extension 9 of the head and be tightly coupled thereto by the nut 10. The pipe or tube 11 is for the introduction of oxygen-gas through the head and tip of the torch, its passage being extended through the upper end of the torch-head by means of the central bore 13, terminating in a large chamber 14, the upper end of which is screw-threaded internally to receive the screw-threaded upper end 15, of the tip, the body-portion of which, for considerable of its length below the screw-threaded portion 15, is provided with an exterior spiral-thread 17, operating as a gas-passage and mixing-chamber. The body-por- 7 tion of the tip, which is provided with time, become most effectively mixed and the spiral-threads 17, has cut therein commingled, the said circuitous path of a plurality of longitudinal grooves 18, see travel of the gases resulting in imparting to 1g.-4, extending to the root of the spiral the latter a whirling action, which is exthreads 17. Preferably, the grooves 18 are ceedingly effective as a mixer of the gases.

four in number and are equi-distantly Passing through the chamber 19, the gases spaced, and extend along the entire length of flow through the passages 22, around the, the spirally-threaded portion of the tip, thus head 21, and thence through the groove-- 3. extending from the screw-threaded portion passages 25, to the chamber 24. In additween which latter and the sheath 7, the .plied' through the pipe 11, flows through 15, to the reduced portion 16, of the tip, behen, the oxygen, or other cutting gas, supchamber 19 is formed, the latter thus being

passages

13, 26 and 2 to the chamber 24. connected by the grooves with the gas-pas. Under working conditions, the heating-flame sage 20, through the shank 2, of the torch assumes a substantially conical form, and head. Below the reduced portion 16, the takes its originat the lower conical end 23, tip is provided with an enlarged head 21, of the tip inside the chamber 24, the flame hexagonal incross-section, as shown in Fig. propagation being in an outward direction, 3, between the faces of which and the sheath as clearly represented in Fig. 5, and is du- 1, passages 22 are formed, the several angles plex in character. That is to say, in the of the head impinging against the internal operation of the torch, the admlxture of 3 periphery of said sheath, thus making a congases passing between the tip and the sheath, tact between the tip and "sheath, adapted to and flowing to the chamber 24, has a tendproduce a rigid structure. Below the head ency, in its egress from the tortuous pas- 21 of the tip, the latter is tapered to trunsage between'the tip and sheath, to hug the cated conical form, as at 23, correspondingly inner wall of the sheath and form into a with the form of the lower end 8 of the hollow-flame cylinder a; but, combustion of sheath; but, the conical tip-end is only subthe gases taking place in the chamber 24, close stantially half as long as the end 8 of the to the end 23 of the tip, results in the prosheath, thus providing a combustion chamduction of a second flame-cylinder 6, within ber 24, at the executive end of the tip, within the other, as clearly shown in Fig. 5. The the sheath. In producing the con1cal,exe cejection of the flame bodies thus formed utive end 23, of the tip, the surface of sald takes place with considerable velocity, so

- end is rounded to conform to the inner surthat the central flame-cylinder b entrains the face of the sheath-end 8, and said tip-end flame-cylindera, which latter has a tendency surface is provided with a plurahty 91'' V- to hug the walls of the chamber 24, resulting 10o shaped grooves 25, each extending longitudiin the two flame-cylinders combining a short nally of said surface from the extreme distance beyond the executive end of the tip, lower end of said tip upwardly to the lgwer or extreme end of the sheath into an intense end of a flat face of the head, the form of flame, substantial] as indicated by c.

said grooves 25'being' such as to give to the The structural eatures described and the extreme lower end of the tip 23 the sixfunctional cooperation thereof result in a pointed star shape shown in Fig. 2, the cutting-torch productive of a short and inpoints of which star engage the inner periphtense cutting-flame, which is characterized cry of the conical end of the sheath, thus by the malntenance of combustion inside of producing. in the grooves 25,-passages for a chamber of comparatively small diameter. the gas which communicate with the pas- Moreover, the executive endof the tip, in sages 22, which latter in turn communicate cludmg the sheath and head, do not become with the chamber 19. Extending entirely unduly heated for the reason that the head through the length of the tip 16, is a central and sheath are at all times in contact with a passage 26, the upper end of which commugases of comparatively low temperature, nicates with the passage 13 in the head, and while externally the sheath is surrounded by the lower end of which is reduced as at 27, comparatively cool air. and continues to the extreme lower end of have, in the foregoing description, de-. said tip, thus communicatingwith the chamscribed my invention, insome particulars, b 24 with referenceto oil-gas, as described in my 12( It ill now b d t d f th above aforesaid application; but, it will be obvious detailed description, that the gas mixture, to those skilled in the art that my torch can flowing through the tube 4 and passage 20 of be pl y 111 Ponnectlon Wlth gases of the shank 2, enters the chamber 14, of the other klnds, 'havln greater less heat" head 3, and follows the circuitous path de- Producing unitsn fact, it is one of the scribed by the spiral-threads 17, and also P f features invention h i fl l g th passages 18, f th b d contains means for utllizing a gas which is portion of the tip until it enters the champ In heat umts; 111 practlqe, y ber 19, between the reduced portion 16 and 159mb a beer} f nd apable of reducing the sheath 7, the gases having, in the meantlme Of a g' n op ratlon approximately 181 50% and also reducing the amount of gas-es used approximately 50%.

In the form of my invention shown in Fig. 6, I have provided an extended tube or inner tip 28, which is formed in any suitable man ner on the extreme lower end of the executive end of the tip 16,.and through ,which the passage 27 is continued. By this means, the oxygen gas is conducted through the combustion-chamber 24, and may or may not combine with the gases in said chamber, according to the length of said ti 28, it being understood that said tip may e carried to the extreme lower end of the sheath, or may terminate at a predetermined distance short of said end.

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

1. A cutting-torch comprising a head having a tip secured thereto, said head having a chamber and a plurality of passages leading thereto for the admission of different gases, the tip being provided with a circumferential circuitous passage communicating with one of said passages, and with an independent passage formed in Continuity with another of said passages.

2. A tip for cutting-torches comprising a body-portion, a sheath encircling the same, means between thetwo providing a circuitous passage for gas, and the body-portion having an independent passage for gas, said body-portion, at its lower end, terminating a short distance within the terminal end of the sheath, whereby a combustion-chamber is provided at the executive end of the tip.

3 A tip for cutting-torches comprising a body-portion, a sheath surrounding the .same, the body-portion" being provided with a central, longitudinal passage and with a circumferential, spiral passage, the executive end of the tip being rovided with a chamber with which both said passages communicate.

4. A tip'for cutting-torches having a cen tral gas-passage, and a spiral passage surrounding the central passage, and also having a plurality of longitudinal passages intersecting the spiral passage, said tip having at its executive end a combustion-chamber.

5. A cutting-torch comprising a head having a shank extending therefrom, said head having a chamber therein and a passage leading to said chamber and said shank having a passage communicating with said tip removably secured to the head within said chamber and having a plurality of passages communicating with the the inner member and the outer member,v and a circuitous passage between said members and the executive end of the inner and outer members having a conical form and forming between them, at the extremelower end, a chamber into which the several gaspassages discharge.

7. A tip for cutting-torches provided with a plurality of longitudinal passages for gas,-

said tip also having a spiral passage intersecting the other passages; and said tip having at its executive end a chamber with which all the passages communicate, said executive end of the tip having a conical form so as to tend to concentrate the gases.

at a given point.

8. A cutting torch comprising a head hav-. ing a chamber and passages leading thereto, a tip removably secured to said head and provided with a combustion-chamber at its executive end, said tip being also provided with a plurality of independent gas-passages communicating with said chamber and entering the said combustion-chamber, whereby di 'erent gases may ,be conducted to .the combustion-chamber without .being ously combined or intermixed.

9. A cutting torch comprislng a head having a chamber and passages leading thereto,

a ti set in the chamber of said head and provided with a combustion-chamber at its executive end, said tip being provided with a plurality of gas-passages independent of each other, and one or more of said passages entering said combustion-chamber and head chamber.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

RUDOLPH VUILLEUMIER.

Witnesses:

MAXWELL GREENBERGER, E. E. ALL-BEE.

-'previ-