US1254637A

US1254637A - Cutting-torch.

Info

Publication number: US1254637A
Application number: US16432517A
Authority: US
Inventors: Worthy C Bucknam; Henry Cave
Original assignee: DAVIS BOURNONVILLE CO
Current assignee: DAVIS-BOURNONVILLE Co; DAVIS BOURNONVILLE CO
Priority date: 1917-04-25
Filing date: 1917-04-25
Publication date: 1918-01-22
Anticipated expiration: 1935-01-22

Description

W. C. BUCKNAM iL H. CAVE.

CUTTING TDRGH. Avmqmag mlfI ma. 25. 917.

.www Jan. ma,

die

s ei To oli? whom may conceive:

Be ic imovvo. their. We, Noemi C, iiiooei NAM imei HENRY ifiiivis, oitiiceiie oi 'the .iiiiie States, residing, eespeetiveiy, ei; .lii'eicioii Jeisey Ciiy, im the eouiiiy oi" Hurisoii en @ieee oi New iieieey, imo et'. iliizo.- heidi, in the county of Union emi Siebe of vi'i'ew Jersey, iiove invented e new and usefull iiiiingfioicii, oi' Whichthe oiiowiog is o, speciiicet'iom.

This invention i'eieies to hond cutting torches, eooiiis obgfect is io provide o oom-- peet emi oieeiiobie construction wiiei'eby (che siieem of meting oxygen may be turned om emi oii by ''.iie hood grasping ehe ioicii quickly emi conveniently, vviiiioui ciistucb ,the eim, This is occompiishedl by o eomioiiieiioii iovoiviog e loogimidiiioiiy mov volvo ei; 1che meer peet of. the hoodie, o

iii?

'immfveiee foiwoidiy of ibo veive ei miie iooi; iiielg'ifip-poi'iioii oi? the hoodie, .oiioi opi-mooie@ connections, soeii, ioi" ein empio, es e ioggio eeiepieci io ioe oeii'ioo. esi the weiter-through viceerwiiffoi peeesoi'e iii) Aioeii the veive; A

' @einer iieoioies enlwespecie oi eine ioveioiioio iviii be opposent fao those siiiiieci im the vest from .o oorieidemiioio-of "die ioiiosviogg desciipiioo ood the eppeiicieii drawing iiios meting che preferired eminofiimeoi emi wherein:

Figm'e l1li is e siiiie eieveizioii oi eine ioicii with on limael'iiieoiieie poiii'oii of 'the pipes mici iienciie boeken evvey and the ibi'igegex' ioeiiofg siiovm iiithe eioscii position; Fig. is on eiiieeged imgiifiemei'y seetioooi view, showing' the trigger voive mechanism 'with the volvo epee.; Fig. 3 is o, fragmento@ eien veiion iooiiiiig iight ongles io che piane of Fig. g'iig. 4i ie' o, cioss-sectioo on the iime @wel of Fig'. 2; Fig., 5 is en devotion oi eine connection oiock o; theiaose of iiie iieiidiie; eiioi Fig. o is mi @miei-greci oioseseoiioo. oo che ilie iL-6 of li.

The framework oi the hoodie is constiu vioi'ceoi by o. connection biocii 2 ein the roei:

eind endl three pipes 3, e, omi 5 extending" foi'woici iiiereiiiom to e head 6, iii which is sockeieii' o iemovoioie and iiitei'ciooiigeoiaie tip '2'. The ooniiiiit 3 is for cutting; oxygen, 1i.- ;ioi heating' oxygen,A vinci 5 for the comiousbiioie gos, which moyv be either acetylene ei ifiyiirogem. The meim'ei' of leading the meme.. mmm.

@eeoiieetioe of Leii'zei's Patent.

ges'es iirough the tip :and of mixing iiie gases foi" the heating yet oi: gees moy be,

understood as being substantially simiiei to time shown in Potent i-,UMHIi-l of Novem hei 19j, i912. The mejor portion of the con- "iieciion block emi o suitable exizelii; of fthe pipes are iiiclosed by e. hollow oyiiodi'icel easing 8, affording o.' grip. foi' theimiid oi" the operator.

The commotion block 2 has two -

coiineotiene

9 and 9, the former to receive the oXy- @en hose and the istie? the ooetyiene oi" hydrogen hose. From the oonneciion 9 the combustible ges posses directly into the con init 5, its iovv being regulaioiel by e needle veive i0. From the cavity 1l, wherein the eoliiieoiioii 9 io screwed, the oxygen for: the

hee-ting mixture isby-possed by wey oi' e' ciuci. l2, to the oiiomicer oi a needle valve i3 sind docs 14a to the pipe i, the amonio@ which is siiovved to How il'uough this poseioeing reguiebie by the seid ve-ive. oi the oxygen ooeci for cutting ieeves the oevity il thi'ou h e duet i5, ioy ivhioh'in enters' :i valve eoambei i5, fifom which ii, mog/.flow byv eiioiniiei duce i? to IlMoe pipe 33.

'iiiie' veive eiioiiiioei 16 is 4ioi'inefi by vo longitudinal cavity eizieiiciing invvmoi fiom the remi fece oi the connection Toioo, ite weer eiici'ioeimg ci soci by o iceiiiovzibiescrevvplug l. Foivvoirdiy of seid ping the chemo bei is of ieo diameters, the' voivo i9 being siioiobie iii fiile *portion of ierger ciioiioeieiel The eoiireiiee eiuot i5 opens imei-his ioicgei: pievi oi? the oiiomioei', vviiiie the exit duc@ i? is ciriileii intotheiiorwaioi poiiioo oiE smeilei oiiomeier; 'between the two is e, shouidei* 914i coesibiiiiting e veive seein: io oooperate with the rounded. emi of the voive. The seid valve is mooie hoiioiv, foia there- 'eeption oii o helicai extension epiiiiig 2i,

which presses ot opposite 4ends oeziin% the piug'oiod valve, so es ibo close he iettei". A

K iieiiseii'eeei Joie., fifi, iiiiii, policemen moei willi E35, 19W. Serif-11 Effe. Mififii.

fihe portion stem 22 piojiecciiigioifivom from the plug,

selves es o ceiiiiei'iuide mici support for the sgi-ieg, The veive is oiieeoieoi by o, reci Q3,

=`iiispoeeci ieogisiiwise vviiiiiii the grip easing 3 ohci siiciooie tiiiougii o stoiiiiighox 2i, with f its roei .emi red'uoe omi loosely engaging o smoil recess 25 iii the fiom; emi of tile valve i9. This'fiiscomieciioio of time "eiulisi; oci from eine yoive, which` is sooieci iiy its ovm spring, hose. specific o-oivoiiisage, ii. may

bei' oevity omi iiie iimei iodopeiiieg oo ioe Iiii be noted, in that ii, permits the ve'ive ehomdrilled from opposite sides of the block without resulting ditliculty from possible disalinement.

A longitudinal slot 2G is provided in the forward or under side of the casing 8, just in advance of the portiongripped by the hand, and through this slot there projects a .triggerslike finger-piece Q7, the inner portion of which is pivoted on a fixed transverse axis, the pivot pin 28 being carried in this instance. by a bracket piece Q9 fixed to the. front end closure 30 of the casing. The means whereby rearward swinging move ment of the trigger opens andloeks the valve preferably comprises a toggle, of which one member is constituted by a portion of the trigger member itself. The other link 3l of the toggle'is pivoted to the trigger-piece at 3Q and to a slide 33 at. the point 34. This slide is connected by a screw coupling with the rod Q3, of which it constitutes an extension, and its forward end is guided atI 3G ,in the fixed part 30. The link 3l is slot.- ted or bifurcated to receive the trigger member, and the slide 33 is slotted to accommodate both.

The trigger is operated to open the valve by a rearward pull ofthe foretinger. This straightens the toggle, pushing the rod Q3 lrearward and unseating the valve 19. The relations are such, as indicated, that the toggle is carried slightly past the line of eenters, in which condition ity is self-locking under the action of the spring 2l, further `I'novement of the toggleunder the pressure of this spring heilig prevented by means of a suitable stop provision, such as the trigger striking against the rear end of the slot 2G. In order to close the valve, all that is necessary is to push forward on the trigger sutiiciently to break the"toggle, whereupon the spring completes the movement and seats the valveo,

While the,l preferred form of the device has been described in detail, it Will be understood that numerous changes may be made in form land proportions, and through the substiltution of equivalents,` Without departing from the substance of the invention.

What is claimed as new is: 1. 1n a euttmg torch, the combination with a handle having a grip with. a tore and aft slot forwardly ot' the portion grasped by the hand and conduits for the gases including a cutting oxygen conduit, of a valve for opening and closing said conduit inside the handle in rear of said slot., a trigger pivoted on a transverse axis inside the grip and having its finger portion projecting through said fore and aft slot for movement longitudinally of the grip, and connections inside the grip whereby rearward movement of the trigger unseats the valve.

ln a cutting torch having a handle and conduits for the gases, the combination ot a valve for opening and closing one of the conduits, a fore and att' operating trigger piv oted upon a fixed transverse axis in the handle, a longitudinal thrust member for openingthe valve, and means operable by the trigger and constructed to be carried rovtatively past a center to operate said thrust member and to hold the sami and the valve in the open condition.

3. ln a cutting torch having a handle and conduits for the gases, the combination of a longitudinally movable valve in the handle for opening and closing the cutting oxygen conduit. a longitudinally movable trigger projecting from the handle, and a toggle connection between the trigger and valve.

4. ln a cutting torch having a handle and conduits for the gases, the combination ot' a valve mounted for movement lengthwise of the rear part of the handle to open and close one. of the conduits, a spring to seat the valve, a fore and aft movable tinger-piece forwardlyT oi the valve, and a longitudinally disposed togglehnd rod inside the handle for opening the valve under the action of the linge1}) iece.

5. ln a cutting torch having a handle and conduits for the gases, the combination of a valve chamber in the rear part ott the handle, a valve therein movable lengthwise of the handle, a` spring in the chamber 'tor locking the valve, a thrust rod entering the chamber to open the valve, from which it is discon-v nected,'and' a linger-piece and self-locking toggle for operating said rod.

VVOBTHY C. BUCKNAM. HENRY CAVE.