US1122147A - Blow-torch. - Google Patents

Description

J", Wx MOORE.

BLOW TORCH. APPLICATION FILED MAY 14, 1914.

Patented D60. 22, 19M;

witnesses attorneys J'ES SLEY MOORE, OF TORTSMOUTH, VIRGINIA.

BLOW-TORCH.

Application filed May 14, 1914. Serial No. 838,592. a

State of Virginia, have invented certain new and useful Improvements in Blow- Tcrches; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others "skilled in the art to which it appertains to make and use the same.

This invention relates to liquid fuel burners, and more especially to hand torches, and the object of the 'same is to produce an extremely simple and yet eflective blow torch capable of being carried in hand by the operator.

To this end the invention consists in the details of construction of the torch. itself, the detachable burner or mixer, and the adjustable deflector thereon, all as hereinafter more fully described and claimed and shown in the drawings wherein Figure l is a side elevation of this invention complete; Fig. 2 is a longitudinal sec tional View; Figs. 3 and 4 are cross sections on the lines 3-3 and M respectively of Fig. 1.

In the drawings the numeral 1 designates a reservoir or tank made in substantially cigar-shape, and herein illustrated as having a cylindrical body with conical ends 2, the whole mounted on a suitable base such as the feet 3 illustrated herewith. At the top of the tank is a handle 4. The entire device is of such size that it may be carried in the hand of the o erator without inconvenience, and at one si e of the tank near-its top is afilling orifice in the shape of a nipple 5 pergtank. When the cap is inplace, theperforation serves as an air inlet to allow the exitof the fuel andwhen the fuel becomes heated from any cause the perforation allows the tfuel to escape from the tank to prevent bursting.

The oil pipe'lO starts at a point 11 within the tank near the bottom thereof and extends along the body to a point 12 near the front end 2, then turns upward as at 13 and leads obliquely out the upper side of said.

end, and to and through a ct cock 14 whose nozzle or tip 15 is reduc By preference specification of Letters Patent.

Patented Dec. i

the pet cock is removable from the front end of the pipe so that if desired it can be replaced b another having a tip of different size or s ape.

The air' pipe 20 enters the rear end of the body at a point 21 and extends straight I through the same along its upper side, as indicated, passing out the front end at the polnt 22 and there carrying a tip or nozzle 25 whose extremity is preferably reduced as indicated at 26. This nozzle'mayalso beremovable from the frontend of the airp ipe,

so that it can be replaced by another of different size and shape, if desired. At its rear or inlet end the air pipe carries an air cock 23, and air under pressure-is admitted to the latter through. aflexible pipe 24 from'a suitable source not necessary to, illustrate.

burner or mixer is by preference ap plied in conjunction with the parts described, and thesame consists of a tubular body 30 perforated as indicated at 81 and hav ng its lower side out awayas shown at 32, its upper side being "continued to the 'rear lnto a rather long tongue 33 which is itself perforated to pass over a ,la screw 34 rising rigidly from the top of t e' tank near its front end, a thumb nut 35 engaging this screw to hold thetongue and therefore the burner in place. In its correct position the cut away lower" side of the tubular burner overlies the pet cock 14 and permits the handle of the latter to project so that it can be grasped by the thumb, and finger of the operator. I

By preference I employ a deflector 40 composed of 'a short section of tube sli htly flattened as seenin Fig.4: so that it is of greater vertical diameter than otherwise,

and this tube embraces the front end of the burner 30 and is pivoted thereto-at oneside as at 41 as .by means of a screw, and at diametrically the opposite ,side by means of a thumb screw' 42. When the latter is loosened, the deflector can be adjustedso as to deflect the direction of the blaze p'assin through the burner, either slightlyfupwar or downward; afterwhich the thumb screw 42 is set up tight tolhold it in this osition. When it is not desired to use this efiector, it can be bodily removed; So also by unscrewing the thumb nut 3 5,the entire burner can be taken off, and possibly, replaced by another of difierentsize or sha I prefer that the cut away portion 32 0 this burner shall have shoulders 39 resting-against the derstood by' tho's'ef familiar with blow torches. jThe body isjfilledto a greater or less degree withfga'solenie or an equivalent fiuid-,:'=and thepipe2-i 'connected with the air 0001: 23 which latter i's adjusted to permit a-blastof o flow through the. pipe 20 and: at the. flattened endilflof the nozzle .25. The pet c'ockdi'is then 'opened slightly, :and it will be found that the stream of air blown with force- {obliquely across the tipof the pet. cock-f 'sets' -upf suction through the latter and ithrou'gh the-oil pipeIO, so that sumed. AsE'itisdesirable that the body 1 the fluid fuel'isi'dra wn npward 'out the tip 15 of the pet cock and isbroken up or sprayed-by-dtheblast"of air as it is driven along the-anis ofthe' burner 30. This spray I being ignited, air enter's the perforations 31 and mixes therewitl1, '--:w-ith the result that the blast issuing-*fi'onrtlie outlet end of the burner is extremelyg hot an'd powerful when compared with the fv-olumdoif oil being conbe held in a nearly fhorizontal position, if the operator iwishe's td d'iret the-flame upward or; downward he hasbut 'to set the deflector 40,- as 'w-ill' be clear." If thisfeature is not useful inth'e work hei's doing, it can be bodilyremoved fThe'--oil i'snot under pressure withinthe tanky -"but the inlet of air through the perforationjtiin the ,nipple 5 p'ermi-ts'ithe eseap'e".through' the oil pipe 10 ofzenough fiuidqfuel" toform" the flame. Ofc'ourse thei ain coming through the pipe 20 mixes with:thei brolren up oil, and with some-fuels andr under sor'ne "conditions, it may be desirable toFon itior reduce the size of the perforations in=the burner, Whereas in other.cases it may -bedesirable to remove the burnerentirelyg} I Ien'ce the advisability of attaching this element to the body in a remov-ablegma-iinerl cf I .do notiwishtobe limited to the precise details "of". construction; non to the materials and proportions ofi'p'arts:

': What I claim as newfis:

1 In a blow torQhi-the' oombination with a body having conicaliends, an inlet nipple in thetippengportion bf said'body and having a perforation, a plug removably closing said nipple, ianaoil ipe needing from the bottom of the f body through its front end,

1 and a: pet c'ock bndth 'outerf end of said pipe pipe and havingiitsltip reducedand directed horizontally across the of said pet cock,

and means for supplying compressed'air to the rear end of the air pipe.

2. In a blow torch, the combination with a body having conical ends, an inlet nipple in the upper portion of said body and having a perforation, a plug removably closing said nipple, an oil pipe leading from'the bottom of the body through its front end, and a pet cock on the outer end of said pipe withits tip projecting obliquelyupward; of an air pipe extending throughout lthe length of the body'near its top,a nofz'zle mounted on the front end of this pipe and having its tip directed horizontally across the tip of said pet cock, an air cockointhe rear end of the air pipe, and a tube for supplying air to said cock.

3. In a blow torch,'the combination with a tank having a base at its bottom and a handle at its top, an oil pipe leading from within the tank through its front end, and a pet cock on the exposed end of this pipe with its tip directed obliquely upward; of

an air pipe extending longitudinally of the tank and having a nozzle at its front end whose tip stands at an acute angle to the tip of the petcock, means for supplying compressed air to the rear end of this pipe, a lag screw rising from the tank, a burner having a perforated body cut away on its under side and provided with shoulders to rest against the ends of the tank, its upper side having a tongue adapted to overlie the tank and perforated to pass over the lag screw, and a thumb nut on the latter.

4. In a blow torch, the combination with a tank having a base at its bottom and a handle at its top, an oil pipe leading from withinthe tank through its front end, and

a pet cock on the exposed end of this pipe with its tip directed obliquely upward; of an air pipe extending longitudinally of the tank and having a nozzle at its front end whose tip stands at an acute angle to the tip of the pet cock, means for supplying compressed air to the rear end of this p1pe,'a perforated burner surrounding the tips of the pet cock and nozzle and having a rearwardly projecting tongue, means for con JAMES WESLEY MOO RE.

Witnesses:

T. J. ORoURKE, W. S. KING.

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