US1433999A - Torch - Google Patents

Description

E. E. AND W4: GARRISON. TORCH. APgLlcAjloN P ILED AuLv l5. 1921.

I' 11,433,999'. Patented oen 31,1922.

Zvaywe @a 772219072 11 aff# Patented @et 3l, 1922e untreu stares Nriurenr err-ice.,

EARL E. GARRSON AND VJAYNE GARR-ISON, OF ALBANY, NEl YORK, ASSIG-NORS TO' `lLltYER o GARRISON, OF ALBANY, NEW] YORK, A FIRllI COlrPOSED OF EARL GAR- RISON, WAYNE GARRISON, AND SAMUEL lVL IMAYER. l

TORCH.

Application led July 15,

To all flo/tom t l'may concern:

Be it known that we, llani, E. Garrison and Hyun Gannisoiv, citizens oi the United IStates, and residents ot Albany, ,in the county ot Albany and State of New York, have invented certain new and uselul linprovenients in Torches, ot which the following` is a specification.

The present invention relates to improvements in torches, and the objects and advantages thereof are to simplify in general the character and constructions oil blow torches, to reduce the expensive manufacture and the amount ot material required to produce the saine, to dispense with the necessity lier providing` a hand pump in conjunction with the torclnto make the feeding of the Atuel to the burner automatic, and to pre-heat and vaporize the fuel prior to itsissuance through the discharge aperture where it ignites and .is burned completely and without any appreciable 'formation ot residue de'iosits.

As constructed at the present time blow torches are provided with liquid fuel reservoirs at the sides ot which are carried reciprocating pumps which must lie-actuated by hand several times preliminary to the rlighting;l ol the torch in order `to place the liquid Yluel body under that pressure necessary to raise it to the nozzle or burner orifice.

'With this in view, it is the object ot the presentinvcntion to provide a commercial blow torch con'lposed ot only two parts, the Yliucl reservoir or receptacle and a piping' or tubing` connected thereto and provided `with a discharge oril'ice placed relatively in a helix or convoluted portion of the piping or tubing to the end that the heat trom the flame will e velop parts of the helix or turns ot the yconvoluted portion and vaporize the tuel which is received troni the tubing` or piping` and place it initiallyin a condition for combustion, and in employing' capillary wicks or other devices embodying the prin-- ciple oi capillary attraction to :raise the liquid fuel troni` thereceptacle to the helix or convoluted portion oit' the tubing or piping withoutany interruption in this capillary kmeans and without allowing the capillary means to enter kthe helix or coil which thus provides a'retort of a relatively great capacity tor .maintaining a comparatively large 1921. Serial No. 484,929.

volume ot the fuel in a vaporized state in readiness ior combustion. i

The area olf the vapor space within the helix or coil and the diameter of this helix or coil is so proportioned relatively to the discharge orifice that a bach pr sure will be created such as will permit the gas to back up into the upper portion ci the receptacle and 'forni a pressure head therein which will assist the action of the capillary wicks and at the same time will not interfere with the free liow ot the liquid tuel through the capillary passages throughout the wicks.

lVith the 'foregoing and other obiects in view, the invention will be more lully described hereinafter, and will be more particularly pointed out in the claims appended hereto. i

ln the drawing, wherein like symbols rel'er to like or correspondin parts throughout `the several views,

Fig. l is a perspective view oi' an improved automatic self-blowing torch constructed according to the present invention; and

Fig'. Q is a vert-ical sectional. view taken through the same with aportion ot' the helix or coil in elevation.

i Referring more particularly to the draw- A, l designates the top,` 2 the cylindrical side wall, and 3 the bottom ot a coinparatively shallow, squat and llat receptacle or reservoir adapted to contain a liquid 'fuel el such as 2gasoline or the like which may be introduced through an opening' in the bottom normallyv held closed by a screw or other plugv 5 and having a thumb piece or operatingpart (l by which it may he turned into and removed trono the opening. Pretorably this plug 5 and .its operating,` part 6 are disposed within a cavity 7 in thebottoni 3 which may be conveniently constructed by pushing in the material ot the bottoni duringv its manufacture. plug and its operatingv part set within the bottoni so as not to interfere with the Hat bottoni surface El or the resting' oit the torch on a tlatsupporting; surlace. rllhe plug' 5 is made both liquid and gas tight soas to avoid the loss ot any liquid and to retain` the gas pressure within the receptacle.

llii the top l ot the receptacle openings o and 9 are inode preferably to opposite sides of the center otl the receptacle and through The idea is to have the these openings are placed the lower ends of tubular legs 10 and 11 which are formed from the end portions of a single piece of piping or tubing. The legs 10 and 11 are slightly bowed for example as shown, a1- though they may be vmade straight if desired, and a preferred manner is to have these legs extending directly and vertically upward from the receptacle so that in addition to forming channels for the passage of the liquid fuel upwardly to the burner orifice, they moreover, when the torch is cold, afford a handle by whichV the vderice may beA lifted about and transported.v

At the intermediate portion of the tubing or piping which is that disposed uppermost a helix or coil is made consisting of overlapping upper turns 12 and 13 which lie horizontally side by side and merge at their opposite ends into the upper parts of the legs 10 and 11, and a single lower partial. convolution 14 which at its opposite ends extends int-o the upperturns 12 and 13 and is of course wound in the same movement therewith. l

A discharge orifice is produced at the inner side of the part convolution 141- at substantially the central and lowermost portion thereof in position to direct the issuing `gases and the ignited flame directly upward in fan shape beneath and through the turns 12 and 13 so that the latter turns form in effect an overlying retort containing the liquid gasoline which is vaporiz'ed by the heat of the flame preliminarily to its arrival at the discharge orifice 15. The diameter of this orifice 15 is made comparatively small as compared with the diameter of the partial convolution 14 and the turns 12 and 13 and of course the length of these turns and partial convolutions are such as to form a chamber of considerable capacity for holding a large supply of vaporized fuel or gas whichaccumulates under pressure and issues with great force through the discharge orifice 15 thereby placing the fuel under most beneficial conditions for its complete and ready combustion and for the spread ing and distribution of the flame in a widespread or fan-like form to envelop all parts of the turns 12 and 13 of the helix.

The decreased diameter' of the discharge orifice 15 restricts the fiow of the vaporized fuel, and as a consequence sets up a back pressure in the retort or turns 12 and 13 and causes the accumulated gas or a portion of i it to descend through the legs 10 and 11 into the upper portion of the receptacle 2 where it collects and forms a head of a pressure which varies from time to time and which acts upon the upper surface of the liquid Ll tending to drive it upwardly through the capillary spaces and channels provided by a pair of wicks 16 and 17 having their lower ends disposed in the body of the liquid -l and extendingupwardly through the legs 10 and 11.

The upper ends 18 and 19 of the capillary wicks 16 and 17 are shown in Fig. 2 to ex tend up to the initial and terminal points of the helix but not to enter such helix, and this construction is found satisfactory for ythe reason that it removes the fabric strucof the gas to collect and otherwise not interfering with the free and ready yaporization of the fuel.

In the use of a device of this character, fuel from the liquid body 4l within the flat receptacle is at all times raised, byvirtue of the capillary attraction through the wicks 16 and 17, to the initial and terminal points of the helix, so that by the application of an ignited match within the helix the fuel will rise from thc ends 18 and 19 of the wick under the vaporizing influence of the heat practically instantaneously and, finding its way to the orifice 15, will be discharged and ignited by the match all in one operation, without having to resort to any initial pumping or any extraneous operation that would involve a complicated structure of torch or he necessity for preliminary action of any kind.

After the burner has been started as `just described, the action will be a continuous one from then on inasmuch as the fuel consumed will create a draft through the capillary passages of the wicks 16 and ,i7 and will create voids to be filled by continuous capillary action which will go on automatically and keep maintaining a full. and necessary supply of the fuel to the heated helix and the burner orifice.

Ait the same time the accumulated vapor within the helix will not escape through the restricted orifice 15 as rapidly as it is vaporized and some back pressure of the gas will be created. This accumulation of gas will tend to drive a portion of the vapor down through the legs 10 and 11 and into the upper portion of the receptacle forming a head there acting on the surface of the liquid and tending to, drive it upwardly through the legs and through the capillary passages of the wicks. This descent of the `gas through the legs 10 and 11 will not be interfered with by the wicks 16 and 17 inasmuch as there are many interstices and channels through the openwork structure of the wicks through which gases may readily find their way. i

lVe have illustrated and described a preferred and satisfactory embodiment of our invention, but it is obvious that changes may be made therein within the spirit and scope thereof, as defined in the appended claims.

What is claimed is:

l. torch comprising a receptacle forming a base, for the torch and being hollow to receive liquid fuel, said receptacle beingI` substantially fiat and provided with a normally closed filling opening made gas and liquid tight, a piping having its ends inserted through the top of the receptacle and in con'nnunication with the interior thereof, said ends of the piping being secured in gas tight fashion in the receptacle top, the pipe being provided at its intermediate portion above the receptacle with convolutions having at the base of the saine an orifice for the escape of the gas and acting to direct the gas and the flame forn'ied by the combustion of the same upwardly through the convolutions whereby to vaporize and gasify the liquid fuel in the convolutions flowing from the receptacle to the orifice, and capillary means in said pipe having the lower ends thereof disposed in the liquid fuel in the receptacle, said capillary means extending continuously up to but not entering the convolutions of the piping, said convolutions of the piping being left free and unimpeded.

2. A self-blowing torch comprising a fuel receptacle and a pipe carried thereby, said pipe being coiled intermediate its ends and having its ends secured through the top of said receptacle with the convolutions of the pipe spaced above the receptacle, and sepa rateI wicks arranged in the ends of the pipe and extending at their lower ends into said fuel receptacle and extending at their upper ends to points adjacent to the coiled portion of the pipe whereby to feed fuel from the receptacle up into the pipe, the coiled portion of the pipe having an opening at its lower side through which vapor generated in the coiled portion of the pipe is adapted to partially escape for burning within the coiled portion of the pipe, the burning of said gas being adapted to heat the coiled portion of the pipe and generate gas therein whereby sai( gas is adapted to exert a backward pressure through the ends of saidgpipe into the receptacle for forcing the feeding of the fuel upwardly into the pipe, and means for venting the receptacle whereby to relieve the pressure on the fuel therein.

opening and to seal the same both air and gas tight, a single length of tubing bent at its end portions to provide a pair of spaced apart legs extending substantially vertically above the receptacle and having the lower ends of the legs pushed through the top of the receptacle and secured tightly therein, a helix' formed of the intermediate portion of the tubing between the top parts of the legs and forming a continuation of the same, said helix at its base and on its interior side being provided with an orifice of smaller port area as compared with the diameter of the helix whereby to set up a back pressure of the gases generated in the upper portion of the helix, and two independent capillary wicks having their lower portions extending down into the receptacle and lying within the legs but having their upper ends terminating outside of the helix and being continuous from the helix down to the interior of the receptacle.

Ll. A torch comprising a receptacle being hollow to receive liquid fuel and provided with a normally closed filling opening, a piping having its ends inserted through the receptacle and in communication with the interior thereof, said ends of the piping being secured to the receptacle in gas tight fashion, the piping being provided at its inf termediate portion and at a higher elevation than the receptacle with convolutionshaving an orifice at one side for the escape of the gas and acting to direct the gas and the flame formed by the combustion of the saine against the opposite side of the convolu-` tions whereby to vaporize and gasify the liquid fuel in the convolutions flowing' from the receptacle to the orifice, and capillary means in said pipe having the lower portion thereof disposed in the liquid fuel in the receptacle and adapted to raise the fuel to the con volutions.

ln testimony that we claim. the foregoing as our invention, we have signed our names hereunder.

EARL E. GARRISON. WAYNE GAR-RISON.

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