US942690A - Blowpipe. - Google Patents

Description

J. I'. WILLIAMS.

BLOWPIPE.

J. F. WILLIAMS.

BLOWPIPE.

APPLICATION FILED MAY 28, 1909.

Patented Dec. '7, 1909.

2 SHEETS-SHEET 2.

7J 79 gb Q WITNESSE? 76 Y Mr.

JOHN F. WILLIAMS, 0F SANDUSKY, OHIO.

y BLowPIPE.

Speccation of Letters Patent.

Patented Dee. 7,1909.

Application led May 28, 1909. Serial No. 498,822.

T c all whom 'it may concern:

lle it known that l, Jeux F. WILLIAMS, a citizen of the United States, residing at Sandusky. in the county of Lake and State of ()hio. have invented a certain new and useful Improvement ir Blowpipes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to blow pipes, and especially pipes which are designed for the lan-ning of acetylene.

Objects of my invention are to provide a pipe of this kind which shall be extremely safe, convenient of operation, .and which, while combining the factors of safety and convenience, shall be light in weight and capaliile. of a wider range of application.

Generally speaking, the invention may be detined as consistin of the combinations of elements embodied 1n the claims hereto annexed and illustrated in the drawings forming part hereof, wherein- Figure l represents a view, partly in longitudinal section and partly 1n elevation, of a blow pipe constructed in accordance with my invention, showing the connections for supplying fuel thereto Figs. 2, 3 and 4 are sectional details corresponding res ectively to the lines A-A, B-B and'C-Q of Fig. 1; Fig. 5 represents an elevation of the pipe shown in lFig. 1, the oxygen branch pipe being omitted and a special form of tip being shown as applied thereto, Figs. 6, 7 and 8 represent longitudinal sectional views through special tips which may be employed with'my pipe; and Fig. 9 is a similar view illustrating the manner in which the tip shown in Fig-7 may be combined with the other forms of tips. Y y

Describing the parts by reference characters, 1 represents the blow pipe generally, the sa me comprising a hollow body or casing 2 which is generally cylindrical in shape and is provided with an externally threaded front end 3 and an externally threa'ded rear end 4. The front o f the casing 2 is provided f with an internal chamber 5 and the rear end '"with a chamber l 3, said chambers being con- 5o,

nected by a relatively reduced bore 7, the -front end of which is internally threaded for the reception of the rear end of a nozzle 8.

This nozzle is provided with a restricted;

vided with a thread for the reception of acorreslionding external thread on a Valve stein l0. This stein extends through the rear of 'the casing 2 and is there provided with a milled head 11. A gland nut 12 is threaded. onto the rear end of the casing 2 and is providedwith a chamber for packing 13. The front end of the'stein 10 is reduced to provide an annular space therearound and the extreme front end of the stem is tapered, as shown at 14, to provide a needle valve cooperating with the inlet end of the bore 7.

l5 denotes a tip which is provided with a bore 16 communicating with a chamber 17, the chambered end being provided with an internal thread by means of which the tip is screwed onto the front of the casing 2. The front end of the nozzle 9 projects across the chamber 17 and into thev flaring inlet end of the bore 16. The outer surface of the tip is provided with a screw thread 18. This thread is deep, whereby it lserves the double purpose of att'ording'a connection for additional tips and means for cooling, by radiation, the tip 15. y The front or discharge end o f the tip 15`is beveled, as shown at 19, to enable it to form a tight or union connection with other tips. y

The casing 2 is provided with a connection 20 which is threaded into the upper portion thereof and communicates with the chamber 5. This connection is preferably a short, angular pipe section, one branch of which extends substantially parallel with the casing 2 and is provided with a threaded end for the reception of the correspondingly threaded end of the sleeve 2l. This sleeve is provided at its opposite end with an internally threaded projection 22 for a threaded stern 23, said stem carrying within the sleeve or casing a plunger 24.

25 denotes a valve which is normally held to its seat on the outer end of the connection 20 by means of a spring 26 interposed between said Valve and the plunger 24. The valve 25 has a guide 27 projecting into the conneetion 2() and a flange' which receives the end of the spring 26 and normally covers an opening 28 in the wall of the casing 21.

The construction described comprises a safety blow olf valve for the blow pipe, the pressure at which the valve will be unseated bore 5). The rear end of chamber 6 is prol by internal'pressure being determined by the adjustment :of thestcin 23 and the compression tot the .spring 2b.

t)n its under side` the casing vided with the threadedprojections 2S) and 3() for the. reception ot the acetylene. and oxygen .supply conduits respectively. The conduit. by incanS ot' which acetylene is supplied through. the vpipe -o'inprises a tlexible pipe 3l. a i'alved connection ,32 which is threaded into a base 33, .said base havingl threaded thereinto the casing' Ill. 'l`he uprper end of this casing is threaded into a reduced member which in turn is connected `to the projection 29 by means ol a pipe .sec-

f i tion 36.

Within the easing 8l there is located m'eans which will normally prevent the propagation ot tlame and the passage ot` a mixture of gas and oxygen thereinto. The means for preventing such passage otI tlaine and mixturecomprises two sericsof inembers` extending across the casingl and check valves located at opposite ends ot' said casing.l At. the lower end of the casing is located the cheek vvalve 3T. 'lhis check valve is identical in construction with the check valvcSS at. the upper end ot' the casingand whichlis shown more particularly in 'Fig 2.y Each check valve is provided With a .solid or. imper't'orate center adapted to covorand close the passageway therebeneath.' The check 'alve 3T is adapted to elose'the passageway through Athe connection 32and check valve 38' in like inanner, to cover and close the/aperture` 3S) l through a, plate. 40 therebeneath. 'llieplatc 40 has an upstanding flange 4l forming a guide. for Ithearms 3S of the valve 2in1 Above said (lange, there is located a washer ft2, which forms a stop for the outer ends of the arms, whereby a t'ree passage will be providedaround the central portion ot the check valve 23S-to` the pipe section 3G.

43 denotesal washer having a depending skirt or lian-ge which forms a guide for the outer ends ot the, arms of the check valve 37 fin the same manner that. thetlttnge 4L guides the arms of the check valve. 33. The

'inwardly' projecting portion ot 43 forms a i above the check 4valve. 37 there is a central aperture stop tor the check valve 3T, leaving,r a space. around the body ot said valve Jfor the flow of` In thelower portion of the casing 34 a'ii'd. located ra.I` series ot baille plates 44 and 45. 'lyhc bailley plates klare-each provided with peripheral. notches 44 and the baille plates ll5 each withI andthe plates 44 and: 45, are so arrai'iged thaty the lgas fiowing through lthe casing is spread outwardly by'- `oney ofsaid baillel plates a'ndrcziused to coniverge to the cent-ral orifice invfthe next `ballle plate, this action being repeated throughout the series of plates. The plates are separated by means of Washers 46. The conis pro-- l t i l l struction and arringement ot plates provides a toi-'tuous path tor theI Q'as through the casing 3st and minimizes the danger of propagating llame through said' casing.

ln the upper portion of the casing there is arranged a .series of transverse disksl 47 of foraminated material, such as wire gauze: said disks being separated by washers 48. These disks provide a restricted tortuous 'passageway tor the gas through the upper part of the casing and also minimize the danger of the propagation of flame 'through the Casin".

'l`hc base member 33 is provided with a. lateral projection having a guide 41S) for the supply pipe 50. This pipe is provided for the purpose of .supplying oxygen to the chamber (t. being connected at its upper end to the projection 250'. The 'pipe 50 is connected ati its lower end with ay flexible sup-V ply pipe 5t. At its upper end itis provided with a lateral "ln-anch 52 having a valve 523 therein. This branch is provided with a` threaded end 5l t'or use in connection with a branch pipe lo'r the. purpose ot' sul'iplying oxygen to the blow pipe tianie when it is desired to produce a highly concentrated tlanie.;such as is known in the art as a cuttingllame." 'l`hisbranch pipe is shown at.

55 and is connected to the lateral branch 52 b v means ot' a. union 5o. The pipe curves. around the blow pipe proper andis provided withl a now/.le 5G which diechargesthe oxygen into the gases and flame at the outlet end ot the pipe.

(ln the pipe there `is mounted a handlel 5T. This handle is carried by a bracket 58. This bracket i's provided with splitI sleeve which extends around the pipe '50 and is clamped to said pipeA bv means oa bolt having` a wingv nut. (50. The handle 57 is pivotally connected to the bracket. by means ot' lugs'tl and ('32 and al bolt G3 extending through the lug ttl`v threaded into' the other lug n2 and providedl with a wingr nut 64. By slacking upon the wing nut''tkthe handle may be adjusted longitudinally of the pipe 50 and may be rotated thereon to place the handle in any ,lcsired position with respect to said pipe', while the rotary @mincetion between the. handle and its bracket enables the handle itself to be setat any angle `with respect. to said bracket. This adjust.- -inent .providesl an extremely conveiiient. '-.l'f

'conditions ot use.A j l \s j ii'cvi'ouslyjst Ve'd. "lii` llig, .l. l

"ozt ti'ips that/nia f be employed .therewithv for the purposefot1 Lonvcnience ot 'operation for the production ofi'a;k alfllame. 'of thescft ips compr .l i i` iitttriiallj'f'threadedv connection (55; saidl 'coniit'ftioii beingl ladapted to be threaded'oittotlie end -oiiithe 4tip i5. This connection is; provided with a.

ans ,for operating the blow pipe in various atejdjthc tip 15 is`v threadhave shown a combination and y boi-e tt', communicating with a tapered chamber. ln this chamber there is swiveled the lower end ot' an angle pipe (3T, said pipe having a port tih communicating with an annular channel titl in the wall tliereotl and said channel communicating with the port tt. llv this construction. communication is alll'orded between the bore titi and the inte,- rior of the pipe t'i in any position which the latter may asume with respectl to the former. rl'he angle pipe is drawn to its seat b v means ot' a screw it) extending through a washer '71 and threaded into the lower end otl the angle pipe. the -washer bearing on the lower end ot' ti e i'itting t'i. The outer end ot the pipe oi' is threaded similarly to the tip 15 as shown at T2. '.indis provided with a tapered end TI-l iii the same nianneras the corresponds ing end ot' the t'ormer tip, so that it may t'orm a connection tor other tips. such for instance as the tip applied thereto iii Fig. 9. Ythis tip is constructed as a Bunsen tube 74 having at one end a threaded connection 75 by means ot' which it may be applied either to the threaded end 7'2 ot the tip comprising` the. angle pipe (ST or may4 be applied directly to tip l5. as shown in Fig. 5. This Bunsen tube is provided Vimmediately beyond the connection T5 with air ports Tttwhieh are controlled b v a valve sleeve TT. The Bunsen tube is preferably made adjustable in length by means ot' an extensible member 7S teleseopically fitted thereon and secured in place h v means of a set screw 79. The outer end otl the liuiisen tube is ot peculiar formation. such formation being secured by providing the outer end of the extension T8 with prongs shown as V-sliaped points 80. The lnnsen attachment admits air to the acetylene or the mixture ot' acetylene and oxygen issuing from the tips 15 or (i7. whereby the acetylene may be burned either with air alone or a mixture of oxygen and air. The points H() protect. the Haine and in operation become red hot. whereby they ignite the gases issuing from the tube in case the flame should become accidentally extinguished. The adjustability of the tube by means of the member 78 controls the charaster and length of the Haine. ln Fig. t there is shown a which may be applied to either the tips 15 or (3T when a small flame is desired.

ln opera tion. acetylene flows through the conduit 34 and the transverse baflies arranged there-in into the chaniber 5. Oxygen .is admitted by means ot pipe 50 and Valve 11 into the bore 7 and is discharged through bore S into the tip 15, where it iningles with the acetylene. Should the tip l5 become obstructed, the. accumulation of pressure would cause the mixture of oxygen and gas to pass baclnvardly into the easing 34, under the relatively high ln'essurc ot the oxygen, but for the fact that this action is ordinarily form of tip 81 prevented by the check valve 88. This cheek valve closes communication between the casing and the blow pipes. and propagation of thune through the casing will be ordinarily prevented. When the pressure accumulates to a point at which the valve 25 is set. this valve opens and the gases escape through port 2Q. l consider the provision of the safety valve and of the check valve to be ot great importance. Should the outlet become so obstructed that tlame cannot be propag'ated therethrough into the interior ot the pipe. there is still danger that the heat may ignite and explode the compressed mixture therein and that the mixture. backing up into the acetylene conduit may explode and cause great damage there. rl`his action however will be prevented by my construction. Should for any reason the check valve v:3i-i fail to operate. the check valve 3T at the opposite end ot' the "asing will eifectually prevent a mixture ot acetylene and oxygen oi." oxygen alone from passing therebeyond into the apertures.

The use ot' the branch pipe 55 with its valve 53 enable me to obtain a cutting tlainewith an Oxy-acetylene blow pipe without the necessity for two oxygen tanks to accommodate the varying pressures required in the blow 'pipe and in the branch pipe. ani enabled to conduct through pipe 55 and valve oxygen at the maximum pressure within the tank while. by use of the valve 11. 1 ani enabled to reduce the. pressure of the oxygen to such a point as will make it most etlirient for mixture with acetylene in'the blow pipe. The tip 67 renders the pipe particularly convenient for working in corners and for directing the flame to various out- `ot`theway places, and is useful either as a with other tips. The manner ot' connecting the handle to the pipe enables the. latter to be very convenient-ly manipulated, and this result is facilitated by the use ofthe swivel tip.

Itlaving t'hus described my inventioi'nwhat I claim is:

l. The combination, with a bloiitv pipe casingof a' conduit for supplying gas therethrough, and a series of transverse members in said conduit, said members being, spaced apart and being provided -with apertures forming a restricted passageway for thegas through the conduit.

The combination ot a blow pipe having a conduit, for supplying gas therethrough. and two series of transverse menibers in said blow pipe, the members of one series being formed of foraminous material and the members of the other series being provided alternately with centrally arranged and externally arranged apertures providing a .tortuous passageway for the gas through the conduit.

The combination single tip or combined of a blow pipe having l y y a'conduit for supplying gas therethrough; anda series ot spaced transversely arranged incii'ibers of" :toraminous material in said conduit forming a restricted passageway for gas therethrough. l y l 4. The coinbiiiation of a blow pipe, a con- 4vduit for supplying gas tl'ierethrough, and a series ottransvcrse partitionsin said conduit,' said partitions ,beings provided alternately with a centrally arranged and an externally arranged. passageway, providing a 'restricted toi'tuous passagewayw for gas vthrough'the conduit. 1

5. The combination of a blow pipe and means for supplying gas therethrough,said

'inean's comprising a conduit, having means providing a restricted passagewaytm gasA therethrough, and a check valve arranged to close the discharge end of the conduit,

6.' rl`he con'ibination ot a blow pipe. a con duit lfor supplying gas therethrough. means ltorining a' restricted .passageway .for gas centering said disk.

8. The combination of .a blow pipe and a conduit for supplying therethroi'igh. said conduit having at the discharge end thcreot a disk provided with a central aperture and a peripheral vflange extending along said conduit,fa' check valve controlling the apci'- ture in said disk and comprising a disk hav-l 'ing l a centra-l body adapted t-o ,close said yliavi no sa gew.;

aperture and a passageway exterior to said' central b0dy,vsa'idvalve having means enk-p said flange,l and an inwardly proJectL- easing ing member beyond said flange and adapted to engage the peripheral portion. of the check valve to l-iinit the movement of the. same away yrointhe ,aperture in .the first-men- ,i 9.Tliecdinbination of ay .blow/pipe,I a conduit 'fori' supplying' gas therethrough, .s aid each .endthereof a disk,v

cond'uit having-atl oiieoic said disks having a flange pro]ccting ,toward the 4oiitlctjend.- ofthe conduit and the oth'crnha ving a-tlange projecting toward the letjen'd otthe conduit, the disk which a( cent" tothe outlet end being Iprovided 'h' aiice'ntral aperture. andadisk valvea't .y ir f Y i hen l ot' said conduit, each 01tsaid valves ycentral vbody poi'tijoirand a pas vje-xtcinal to-said central `body porf ytion'am'i cach valve having means engaging v a flange whercbv said valves are centercdl.

ylt). blow pipe. coniprisinga easing hav" ing means for supplying gases thereto, and

iii the saine.

i provided lwith a. bore.

a relief Ivalve carried by said casing and adapted to open when the vpressure invthi` casing reaches a certain predetermined -degree; v

1l. Ablow pipe comprising acasing having means for supplying gases thereto, a relicl valve carried by said casing and adapt1- ed to be opened b v the. pressure in the casing and means whereby the pressure at which said valve opens may be vaiied. y

12. A blow pipe comprising a casing having a mixing'chamber t'or gases' therein', and a |ircssure-iclieiu valve communicating with said chamber and adapted to open whenv the pressuricxcccds a predetermined liin'it.

13. blow pipe 'comprising a cz'ising,

mcaiis lior supplying gases thereto, a pipe pi'ojciaiug tromsaid casing, said pipe hav iii/fran' outwardlyopening valve tlli'erein, a

"spring tending to scat said valve, and n'i'eans 'l'oi' adjusting the tciisionot'said spring.

l-t-."|`he combination'.of al blow pipe', a conduit torsupplying thereto, said conduit having meanstormingza restricted passageway for gas therethrough, uncheck' valve at the outlet ciid of said conduit, and a pressure-relief valve communicating lwith the blow 'pipe casing. l v

15. 'l`lie conibinat ion of a blow pipe, a conduit for supplying gas theretoysaid conluit"ba\'ingia check valvei arrangedto be sc'atci'l b v pressure created within'the blow.

pipe. and a pressure-relief valve tor said pipe a rraiiged to be opened h v pressure withlo..Y rl`he coinbinationot a blow pipe casing. a conduit for supplying gas thereto, said conduit'havingy means forming a restricted passageway for the gas therethrough, a clieckvalvcuat.each end' of said conduit. and a pressure relief valve for said casing adapted: to' bc'ol'iened by pressure within said casing.,

flTQn irblow pipe, the combination of a casing. means for supplying gases thereto, and a tip tor saidcasing, saidy tip comprising two members` and a swivel` connection between said members. n n A 18. l'n ablowfpipc. the coinbinatioii of a casing having means;forlsupplying gases Athereto'. vand a-tip forsaidcasing."gsaid"tip comprising a .pairr of rotatably connected members. one.of-.',said n'icn'ibcrs bciiig providedk with an internalthread'torapplication to the blow pipe. and tbc other mcinbcr having a` swiveled .connection with :tbc "tormer :iueinbcim each of said n'zicinbc'rs:r being and means4 for preserving'communication between said bores. "15). A' blow `pipe comprising aleasing. nicaiis 'tor supplyinggascs thereto. and 'a tip for said blow `pipe.. said tip `having' atone :end a tlircadcd coi'incction for, appnlizy-ation to the 'pipc and a; tube projcctii'ig from said connection and having a valvc-coi'itrolled aperture adjacent to said connection, and means for varying theI length of said tube.

Q0. A blow pipe comprising a casing, means for supplying gases thereto, and a tip for said blow pipe, said tip having at one end a threaded connection for application to the pipe and a tube projecting from said connection and having a. valve controlled aperture adjacentto said connection, said tube comprising two teleseoping members and means for securiiig said members to- 2l. A blow pipe comprising a casing having means for supplying gases thereto and a tip, saidtip having at one end a threaded connection and having adjacent said connection a valve-controlled aperture and a tube projecting beyond the valve-controlled aperture, saidv tube having its outer end provided with prongs.

The combination of a blow pipe casing, a pipe for supplying gas thereto, and a handle mounted on said pipe and longitudinally adjustable thereon. I

The combination of a blow pipe casing, a pipe for supplying gas to said casing, a handle rotatably mounted on said pipe, and means tor securing said handle rigidly to said pipe.

24. The combination of a blow pipe casing, a pipe for supplying a gas thereto, a bracket adjustable longitudinally and rotarily with respect to Said pipe, and a handle rotarily adjustable on said bracket.

25. A blow pipe comprising a casing having means for supplying gases thereto and a tip, said tip having a tube the-outer end of which is notched or serrated.

The combination ofa blow pipe having a conduit for supplying gas therethrough, and a series of uniformly spaced transverse members of foraminous material in said conduit forming a restricted passageway for gas therethrough. o

27., The combination of a blow vpipe having a conduit for supplying gas therethrough, a series of transversely extending members of foraminous material in said conduit, forming a restricted passagmvay tor gas therethrough, and washers interposed between said members.

2S. A blow pipe comprising a casing having means t'or supplying gases therethrough and a tip, said tip having at one end a connection for application to said casing and having adjacent said connection an a perture, and a tube projecting beyond the said aperture.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses. JOHN F. WILLIAMS. Vitnesses J. B. HULL,

BRENNAN B. WEST.

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