US962640A - Contractor's torch. - Google Patents

Description

A. F. JENKINS. GONTRAGTORS TORCH.

I APPLICATION EILED D110. 23, 1908.

Patentd June 28, 1910.

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nuontoz hereinafter-and set forth with particularity which the following is a cording to the.position of the work controlled means ALEXANDER F. JENKINS, OF BALTIMORE, M

MILBURN COMPANY, QF BALTIMORE,

LAND.

ARYLALND, ASSIGNOE TO THE ALEXANDER MARYLAND, A CORPORATION OF MARY- CONTRACTOB S TORCH.

hpplieatig n fiied December 23, 1908.

Specification of Letters Patent.

Patented J line 28, 1910i Serial No. 468,952.

T a all whom it may concern:

Be it known that I, ALEXAN ER F. JEN- nrns, a subject of the King of Great Britain, residing at Baltimore city, State of Mary land, have invented certain new and useful Improvements in Contractors Torches, of

specification.

This invention relates designed for use by contractors and relates more particularly to improvements in'the burner therefor.

The invention has for one of its objects to improve and simplify the-construction and operation of apparatus'of this character so as to be comparatively simple and inexpensive to manufacture, reliable and et ficlent in use, and "so designed as to increase the brilliancy of the light.

Another object of the invention is to mount the burner upon a rotatable supply pipe mounted on the tank of the apparatus whereby the rays of light can be directed in any direction, the burner being adapted to swing on a horizontal pivot for throwing the light upwardly or downwardly, ac-

respect. to the apparatus.

An additional object is to provide a thimtile-shaped extension piece for supporting the reflector on the burner body at such a position in advance of the jet orifice of the burner nozzle as to bring the flame ap roximately atzt-he focal center of the re ector, the said extension piece having a valvefor"admitting air to the flame to insure efficient combustion.

With these objects in view and others, as will appear as the description proceeds, the invention comprises tures of construction and arrangement of parts which will be more fully described in the claims appended hereto.

v In the accompanying drawing, which-illustrates one embodiment of the invention, Figure 1 is a side view of a portable contractors light equipped with the improved burner. Fig. 2 is a central longitudinal Fig. 3 is a detail sectional view of the pivotal connection between the burner and the standard or sup ply pipe. Fig. 4 is a perspective view of the burner.

Similar reference characters are employed to a portable light.

forthe purpose w iththe various novel fea.

to designate corresponding parts throughout the views.

, In the present instance, I have elected to illustrate the invention as applied to a con tractors light of the acetylene type, but it is to be understood that the improvements may be used with other types of torch lights.

Referring to the drawing, A designates the tank for the generator, such, for instance, as illustrated in my pending application Serial No. 372,972 filedMaylO,1907. The gas from the generator is supplied to the burner standard or outlet pipe 1 by a vertically-disposed pipe fixed in the tank to serve as an axis on which the burner standard 1 can rotate of throwing the rays of light in any direction. On the upper end of the pipe is attached a burner 13 that carries a parabolic reflector C for concentrating the rays of light upon a given point. The burner standard or pipe 1 is equipped with. a cut-off valve 3 for cohtrollingthe supply of gas to the burner.

The burner B, as shown in Fig. fl, coin- .an L-shaped body l which has the arm 5 formed into a tapering or wedge-shaped pi rot that is horizontally disposed and turns in a socket piece 0 arranged end of the burner standard 1. The pivot has a threaded stud portion Txt'or receiving a nut 8for holding the pivot in the socket piece, there being a washer 9 inserted be tween the nut and the adjacent end of the socket piece. The socket piece is formed with a boss 10 for connection with the valve and this bossconstitutes an inlet'for ad niittin-g gas to the chamber 11 that communicates throughthe port 12 with the bore 13 ol 'the pivot This bore 13 communicatcs with the here or hollow ll of the other arm 15 of the burner body, the outer end-of the arm l5-heing provided with a threaded opening 16 for receiving the tubular burner tip or nozzle 17 which has a fine jet orifice 18 through which the gas is discharged to produce a pencil-shaped or elongated flame. The burner body is provided at its elbow with an interiorly threaded boss 19 for re; ceiving a handle 20 whereby the burner may be swung upwardly or downwardly on its horizontal pivot 5 or turned on the outlet on the upper I pipe 2 for-throwing the flame or rays of a light in any direction.

' described the principle of operation of the invention, together with the device which the latter behind the reflector.

. portable tank having a fixed upright pipe I on the burner. The outer end 0% the extenreflector expands slightly to provide ample I and mounted to turn on a'vertical axis, a 1

mounted on the arm 15 of the burner by a thimble-shaped extension piece 21 which telescopes over the extremity of the arm 15 in Qlch relation to the burner tip that the axis 'ot the reflector will coincide with the' axis of the pencil-shaped flame, the said arm being reduced to provide a shoulder 22 against which the inner tubular end 23 of the extension piece 21 bears. The reduced portion of thearln 15 has an annular groove 24 into which extends the inner end of the set screw 25 arranged on the extension piece 21, whereby the set screw locks the reflector sion piece or reflector support 21 has an annular flange 26 against which the reflector is clamped by a ring 27 that is threaded on the extension piece, the reflector being pro vided with a central opening for receiving the said extension piece. The extension piece between the end of the arm 15 and space around the burner tip andto this space air is admitted through oneor more inlet openings or ports 28 which are controlled by platevalves 29 secured in place on the member 21 by screws 30 which constitute pivots for the valves. These valves can be set to admit the requisite amount of air for insuring efiicient combustion of the gas to obtain the maximum brilliancy. It is to be noted that the jet. orifice 18 is set considerably behind the reflector so that the resulting flame will. closely approximate the focal center of the reflector.

From the foregoing description, taken in connection with'the accompanying drawing, the advantages of the construction and of the method of operation will be readily ap-, parent to those skilled in the art to which the invention appertains, and while I have I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative, and that such .ch:=nges may be made when desired as are within the scope of the claims appended hereto.

Having thus described the invention, what I claim is:

1. A contractors torch light comprising a tank, an "outlet pipe supported in upright position thereon to form a burner standard burner attached to the upper end of thei standard and mounted to swing-011 a hori-j z-ontalaxis, said burner having a jet ar ifice, a reflector, and means for inountlng the reflector on the burner w th theet orifice of i 2. A contractors torch light comprising a discharging gas, and a freely removable and 5 freely rotatable burner attachment applied to the said pipe, said attachment consisting as a unitary structure ofthefollowin'g; a pipe standard slidable on and off and rotatable around the fixed pipe and receiving gas therefrom, a burner body mounted on the standard to move therewith and movable independently thereof on a horizontal axis, a burner tip secured to the said body,

a reflector having an opening'through which the flame is pro'ected from the tip, andxa device separate rom both the reflector and burner body for securing and supporting the -:Eormer on the latter.

3-. A burner attachment for contractors lights comprising a straight pipe standard open at its lower end, a burner body pivotally mounted on the upper end of the standard to swing on a horizontal axis and constructed to receive gas therefrom, said burner body having a jet orifice arranged to deliver a horizontal flame, a reflector disposed in front of the jet orifice and having an opening to receive the flame, a device supporting the reflector on the burner body and slidable longitudinally on and ofi the latter, and clamping means on the said device releasably en gaging the burner body to hold the device in position.

4:. In a contractors light, the combination of an L-shaped burner body having one arm formed into a horizontal hollow pivot, a vertical gas conducting pipe .forming a burner standard on which the pivot is mounted, said standard being open at its lower end to loosely fit over a gas discharging pipe and having its upper end oommunieating with the pivot, a burner tip connected with the other arm of the burner body, and a reflector supported on the burner body from a point behind the reflecton'through the extension piece. 7

6, The combination of a reflector, a tubu-- lar extension piece connected therewith and extending rearwardly therefrom, means for attaching the extension .piece to a burner body, and controllable means foradmitting air to the flame through the extension piece.

7. The combination of a burner body having a threaded opening,'a burner tip screwed in the opening, anextension piece detach- I I ably connected to the burner body and ex tending forwardly beyond and surrounding the said tip, a reflector, and means for clamping the reflector on th(- extension piece With-lithe burner tip exterior to the reflector.

8. The combination of a reflector having an opening, a tubular extension piece projecting from the rear side of the reflector with its axis alining with that of the latter, saidextension piece having air-admitting means located behind the reflector to permit and in front of a burner, sai piece consisting of a unitary structure including means at one end for detachably connecting .the reflector thereto, means at the opposite end for detachable connection with the burner,

a device on the last-mentioned end for clamping the said piece'to the burner, and air-admittin means arranged intermediate the ends oft e said piece. t

10. The combination of a rotatable pipe standard, a valve therein, a socket on the standard, a pivot in the socket having its "axis transverse" to the standard, a burner body carried by the pivot to swing in a plane at one side. of the standard and Scom municating with the latter through the pivot, a reflector carried by the burner body, and a handle on the burner body for swinging the same, with an upright gas supply pipe extending into the pipe standard and forn ing an axis on which the latter rotates.

11. The combination of a pipe standard, a burner body carried by and movably inount-' ed on the upper end of the standard, said body having a smooth reduced portion provided with an external groove, a tip on the burner body havihg a'jet orifice, a reflector supported Wholly in front of 'the tip and hav ng an opening in line with the jet orifice, through whichthe flame enters the-reflector, an extension piece on the reflector at the'rear thereof having ahollow rear end slidably.

9. As a new article of manufacture, an extension'piece for connect n a reflector to fitted on the reduced portion of the burned":-

and a fastening on the extension piecea'r ranged to engage in the said groove to hold the extension piece on the burner body. l 12. A reflector having an opening, an extension piece having-its front end secured to the reflector at the opening and having a burner embracing means at its rear end, and a set screw on the rear end of the said piece a for clamping the latter to .the burner, in

combinatlon with a burner having asmooth portion to fit into the said means and provideduwith a movie into which the screw engages for ho ding the extension piece connected with the burner.

13. A reflector having an opening, an

extension piece having a flnaged front endextending from the rear into the ope iing with the flange bearing on the internal surface of the reflector, a clamping ring on the said piece engaging the external surface of the reflector, and means on the rear end of;

the said piece for connecting the same with 'a burner.

14. Afeflector 'extensionpiece having an external flange atone end and externally",

" piece for. connecting the latter to a burner. 15. A reflector-having an, opening, an ex;-

tension piece located rearwardly ofv the reflector and connectedwith' the same at the said oppning, the rear end of the'extension' piece smooth bore, a burner'body having a smooth portion embraced 'by'and on and on which slides the said hollow end'of the extensions piece,'and means for clamping the extension piece on the burner body) I 7 I my signature 90 In testimony whereof in presence of two witnesses.

eing hollow and provided with aportion of'the said piece for ALEXANDER F. JENKINS.

Witnessesfl i B. I. BLAINE, A; THOMPSON.

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