US1538634A - Torch-burner construction - Google Patents

Description

May 19,1925. 1,5s,s34

' O. J. GROEHN TORCH BURNER CONSTRUCTION Filed Nov. so, 1921 2 Sheets-Sheet 1 o o o o e G 0H@ @I Groei/2, T

May 19, 1925. 1,538,634

' o. J. GROEHN TORCH BURNER CONSTRUCTION Filed Nov. so, 1921 2 Sheets-Sheet 2 y 8, 5f y )5,2 y] l i i l I @f Hl J l d? .L -Z

. a Y /v' Patented May 19, 1925..

UNlTEosTAJTi-:s

P Ala-'I f NT OFFICE@4 OTTO J. GRCEIIN, or DETROIT, MICHIGAN, assIGNon To CLAYTON & LAMBERT MANU- FACTURING COMPANY, or DETROIT, MICHIGAN, a CORPORATION or MICHIGAN.

TORCH-BURNER CONSTRUCTION.

' Application mea November so, 1921'. semi N0.`51s,ss2. .i

VTo all whom t may concer/n:

Be it known that I, @TTC J. GROEHN, a citizen of the United States of America, residing atDetroit, in the county of Wayne and State of Michigan, have invented cer# tain new and usefulr Improvements in Torch- Burner Constructions, of which lthe following is a 'specificatie-n, reference beinghad therein to. theaccoinpanying drawings.V

`This invention relates to burners and refers more particularly to` oilburners or the likeof that classl which are used in connection with blow torches or similar devices. It is one of the objects of the invention to provide an improved construction in which theburner orifice is prevented from clogging and more particularly-to provide a means for cleaning the discharge orifice or nozzle of the bui-nei` so that it can bereadr ly maintained in operative condition. An essential feature of the invention is to so construct and arrange this clean-out member that it is readily availablefor use but is so constructed and arranged that it cannot :Tube jammed against the discharge orifice of the burner nor can it be withdrawn so as to permit the flame to backefire or the gas: to escape from the rear of the clean-out membei'.

The invention contemplates the novel arrangement wherein the control valve is locatedat a position distant from the discharge orifice andV the cleaning nozzle ar ranged adjacent the final discharge 'orifice butl primarily adapted `toform a'cleanfout `member' and not a shut-OE valve` In case the clean-out member is adjusted by a screw thread it is of course possible to exert a. treinendous amount of force on the seat should the clean-out member be free to move for-k ward to an unlimited extent. .In the present novel construction I not only7 limitthe forward movement of the clean-out member `but also limit the rearfmovement. Other fea` tures of the invention reside in such arrangements `and combinations of parts as I will more fullyhereinafter appear.

In the drawings: l

Fig. l is a vertical sectional view partly in elevation of a burner embodying my invention; I i

Fig. 2 is a sectionahview taken `on theline 2-2 of Fig.`1, and l Fig. 3 is an enlarged fragmentary sectional viewshowing a modified construction. y

Describing .in detail the' particular embodiment of my invention `shown in the drawings, A designates ythe tank of a blow torch and B lthe burner mounted thereon and secured to the tank by a suitable stem C. Fuelfrom the tank is fed to the burner upwardly through the tube erstem C and through the preheating ychamber D which, because of the upward off-'set ar- `i'angeinent of the tube D compels the fuel to pass adjacent the hot wall of the charnber E before reaching the vvalve seat F. The latter is controlled4 by a needle valve F and when this valveis openedthe fuel i passes up through thepassageway G tothe discharge orifice or outlet H.

As shown inl detail in Fig. l this discharge orifice H ismounted in aremovable mem-I ber H and the gas passing the discharge orifice H mixes with air through the ports I and is burned in the combustion chamber E. Owing to the proximity ofthe outlet orifice H to the combustion chamber E it is advantageous to locate the control valve F at a point remote from this discharge orifice but some means must be provided to keep the orifice H open in case carbon or other mattei' should be deposited in thel orifice. In place of using a separate valve at this` point I preferably employ a .clean-out needle J carried by a stem J and adapted to be projected into and through the orifice H as desired. -rIhe stein J is screw-threaded at J 2 in a. rearwardly extending nipple K and is controlled by a hand-wheel J3 mounted on the vend of the stem J and located preferably above the hand-wheel F3 which is mounted on the stem F 2which carries the needlevalve F. In order to limit the forward. movement ofV this clean-out member the stein J is provided ywith an enlargement L which upon the eXtreme forward movement of the stein J will strike against the abutment L while the outward packing M While the abutment Lzis carried Aif) by a second collar or sleeve portion N, `In this manner theA parte 'aire ndt only' economical'ly constructed butl can be readily assembled and taken apart. Moreover this novel arrangement of parte prevents the i-njuryito `-jtheicl-ischarge orifice- H which is an important feature since it is necessary to maintain the relative proportionv of .thevoriiice to the other parts of the combustion chamber in order to secure the imoet eiio'ient combustion of thefuel, While limiting the rearward 'movement prevents accidents which might arise owing to the operator' inad- 'veit'ently"withdrawing the entire clean-'out member lamil thus prevent'fthe' back-firing or 'burning 4of the yfuel at a point other than the discharge orifice H; f

" x'The burner is `provided With the usual drip cup-@for priming or preheatirrg the burnerv at the sta-rt and 'the 4usual hook Q for supporting the tool to :be heated. In connection with this hooilr rvthere iis-also vpro-- vided the pliig l which `is tapered,l and in shipping the burner the plug is forced tightly into placefAs tliisp'lug is preferably formed' ofwvood or other semi-'compressible material't serv-es as agua-rd or protection 'to `prevent*the breaking. of the hook.` Prior to the adoption of this novelfarraiigement a large ninnberof'these 1liofol'is vwere broken in shipping the burner i'tlius necessitating replacing or repairing large numbers vof -burners, Whereas in the present construction this diliicnlty isentirelly overcome. e

`In the` particular "construction shown in Figfthe corresponding parts yare identical With those shown in l With theexcep-y tion that the "clean-out member is not yadjusted by a -screvv thread; place 'of the screriv threaded stein the cie.an=out member yS in Fig; '3 is carrieds'tem S which has a rack S24 engagedby a pinion T. The latter is rocked about its pivot T by the larm T2. In this Way tliecleanout member can be quickly adjusted to" perform its cleanout functionaiid immediately return to its inoperative'p-osition. lSuitable stopsfV and V" limitwtlie forward and rearward move-` ment of the 'clean-out nienjiber` This" constructioi'iis advantageous lnot only because of the ease with yvhi'cli't-lie-l clean-out member may be manipulated but it'furtlier serves to prevent'tlie clean-out member from being ljammed to its seat and even ifitwerepermitted to reach the seatthe expansion, due

to heat, Would, not destroy the latter as the-n rack Woulds'imply move back and rocll the pinion and armT2. I llVhatI claim as my invention is:

1. In a burner for blow :torches or vthe like,

the combination with 'a fuel passage ljiaving' a discharge nozzle, of a nipple in rear of said nozzle, a stem extending through said nipple and adjustable by a threaded engagement with the nipple toward and from said nozzle, a clean-out member carried by said ste-inzanc'l adapted ,to be recipi-'ocateditlirough said nozzle, an enlargement upon said stem, an abutment member detachably secured to said nipple engageable with said enlarge-v cliargeforice, of alirip'pl'e in alignment with i the orifice, a-stem threaded'ly adjiistablein 'saifd vnipple toward land avv'ay from said Ioritice, acflean Jout member 'carried by said stem s adapted to 'be reciprocated 'through saidA oi"- fice, a' collar surrounding said nipple having a reduced portion fitting said stem, a collar sii-rroundi'n'g the reduced portion joff the collfai` kfafor'e'said liavin'g fan annular shoulder, andan enlarge-ment on 'saidsteni alternately engageable with the outer end of the first'fcolilarand the an'nularfsli'oulder of the 'second collar for limitin'g'the movement of said stem ytoward land afivaiy from said orilice, and means' remote from and independent of the -c'lean out member and stein for controlling'the'tlow of fuel throiigh said passage.k V' 5 In" va burner for bloT torches or the like, the combination with a fuel passage having 'a 'discharge nozzle'o'f. aY valve for controllling the passageI of fuel 'tosaid nozzle, a stem adapted to gradually and positively moved" toward and 'away 'from 'said` Ano'zzle, a clean-out member carried by` the stem and fenga'geable With the novz'zle,'n'eans carried by 'the stemat afpointr lremote from vthe fuel passage` for s'lidablyy housing the 'f stein, and means Icooperating therewith `for limiting the movement of thestem 'towardthe nozzle for preventing injury to the same and limiting movement of the stem awafy'from the nozzle to prevent accidental complete withdrawal of the stem and 'convsequent escape of the fuel from the said fuel passage Ithrough the ysaid stem housing.

4. Inv a burner for blo-vv torches or the like,

the combination With fuel passage'ha-ving a lthe movement of the stem toward the nozstem housing comprising a pair of telezle for preventing injury to the same and sooped abutment members each having a limiting movement of the stem away from rearwardly extending portion embracing the 10 the nozzle to prevent accidental complete stem.

Withdrawal of the stem and consequent es- In testimony whereof vI affix my signature.

cape of the fuel fromthe said fuel passage through the saidA stem housing7 saidl n OTTO J. GROEHN.

Images