US886712A - Gas-light fixture. - Google Patents

Description

No. 886,712. PATBNTED MAY 5, 1908. LMAAS. GAS LIGHT FIXTURE.

APTLIGATION FILED JAN. 29, 1908.

PATBNTBD MAY 5,1908.

J. MAAS. GAS LIGHT FIXTURE.

PPLIOATIN FILED JAN. 29. 190B.

9 SHEETS-SHEET 2.

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df. f

No. 886,712. PATENTED MAY 5, 1908.

. J.' MAAS. y

9 SHEETS-SHEET- 3.

-- 10.886,712. -PATENTED m1551908. (y

J. MAAS'. Y l GAS LIGHT FIXTURE.

APPLICATION FILED JAN.29, 1908.

9 BIIEETS-BHEET 4.

j@ g l Nb. 886,712. PATENTED MAYs, 1.903.

' l J. MAAS. A

i GAS LIGHT FIXTURE.

APPLICATION FILED JAILZQ, 190B,

@SHEETS-SHEET a,"

- Williea- No. 886,712. v y PATENTED MAY 5. 1908. y' J. MAAS. 'Y

GAS LIGHT FIXTURE.

APPLICATION FILED JAN. 29. 190s.

' 9 sHpBTs-SHEET 7.

No. 886,712. PATENTBD MAY 5, 1908.

J.. MAA-s.

GAS LIGHT FIXTURE.

APPLICATION FILED JAN. 29, 1908.'

- @SHEETS-SHEET 8.

PATENTED MAY 5, 1908.

J! MAAS. GA'S vLIGHT FIXTURE. APPLICATION FILED IAILZQ, 1908.

9 SHEETS-SHEET s.

'. To all 'whom 'it 'may concern.'

UNITED srarnsrarnur oFFIoE.-

JOSEPH MAAS, Ol" KALAMAZOO, MICHIGAN.

GAS-LIGHT FIXTURE.

Patented May 5, 190e.

Application filed January 29, 1908. Serial No. 413,198.

Be it known .that I, JosEPH Maas, u. citizen of the United States, residing at Kula- `mazoo, 1n thc county of Kalamazoo'aud State of Michigan, have invented new and .-useful Improvements in Gas-Ligl'xt Fixtures, of winch the followmg 1s u specification.

verted -incandescent mantle-S.

'My invention relates to improvements in Its object is yto provide such :1 light of cliicient und simple construction Fig. 12.

In the drawings, Figurc 1 is a side plan of the structure complet-c with thc globe closed,

and with portionsofthe side walls removed 11i-order to show thc. mter1o1' construction. Fig. 2 1s a side View of the lower portion of the fixture with the inclosing casc in position andjvith the globe open. 'Fig 3 is a top plan view. Fig. 4 is a sectional lView lpokiug down from s.s of Fig. 1'. .zontal cross-section looking up on the lme Fig. 9 shows in detail Figs.

11, 13 and 14. -Fig. 13 is a crosssection on and projection from line m-m of Fig.12; Fig, 14 is a similarsection on line nen of Fig. 15 is a cross-section and plan on line P--P of Fig. 12. Fig. 16 is a sectional view on line u-fu of Fi f. 13, to show some of the details of the va ves and 'pass es therein. Fig. 17 shows the tip of the pi ot tube. Fig. 18 is a bottom plan view, ooking up, of a portion of the late surrounding the mantle holders, am showing also the pilot tubetip. Fig. 19 shows the method of holding in positionth'e globe-su paorting ring'. Fig. 2O is a' side view of t e unsen burner` tube and of the mantle I lOZzle. ig. 21 is a vertical cross-section of the sa'me parts with the. su porting sleeve and other adjacentparts. 22 is va plan viewlooking down from the topat'I the burner tube and attached parts shownin Fig. 20.

Fig. s

Fig. 23 shows the locking device which prevents the burner tubes from dropping through thc plate 27.

In thc drawing the numeral 1 represents the exterior casing made of sheet metalor similar material, and surrounding the upper portion of the structure. 2 is the centrally situated chimney` or flue. This chimney or flue carries suitable collars rivctcd thereto, and th'esc. collars carry extensions 2 which serve as clamps, which, by nic-unsol` suitable screws, can be clamped down upon the supporting brackets, whereh thc chimney is held in the position at which it. may he desired to fix the same.

3 the globe of any' suitable size and shape, preferably closcd at the bottom and open `at the top, as shown.

4 is the gas supply pipe leadinf -the gas from the source of supply 'to this ixture.

5 is the bracket carried by the pipe 4'pro vided with an opening for the passage of as therethrough and carryinry depending brac et arms 6 and 7. Ono of t ese, as 7, is made hollow, and the gas is thus conducted from the supply pipe 4 to the controlling valve carried in the valve casing 8.

9 is the circular gas pipc. or ring, operating to convey gas from the controlli-ng valve to the various burners, and thus eventually cause' the. inverted mantles 33 to become incandescent.

The casing .1 is supported in position by means of the hangers or brackets 42 encircling the depending arms 6 and 7. To these hangers the casing is firmly fixed in any suitable manner, as, for example, by four screws 43'. In the upper open end of the casing l I insert thc screen 4 4. cross-arm frame 45 45 and is central opening'through which the pipe 1 or rather the upward extension of the bracket 5, may pass. One purpose of this screen is to exclude ilirt, insects, etc.,vbut by means of its stiff carrying frame and central opening, it also serves to adjust the casing with reference to the pipe andto center the latter and to hold the upper end of the casing in the proper fixed relation to the pipe. This is of especial advantage when the lower part of tl'iecasing, beingv the' ventilator extension thereon, is removed as her'einafterdescribed,4 and the screen and its carrying framethen This is carried upon .he` rovided with n.

prevent the casing from rocking upon its supports and cause the lower end also to maintain its lixedrelaiion to the center or axial line, if this )urpose is not sufficiently.' accomplished byft e inea-ns which l employ' For atta-ching the casing to the hong-idg mms 6 7. Upon the lower side of' the brut-.liet 5 I attach by e, screw, or other suitehle ineens, a plete 42' which is thus interposed between the bracket containing the ges'pessoges und the top of' the chimney and. serves to protect the former against excessive heut coming from the letter.

As the gas passes down the hanging pipe 7, it enters t e chamber 8 (Figs. 12,14. end 16) contained in the valve casing This causing is suitably bored out, preferably upon n, te er, as shown', to receive the revolving valve 10 which is operated by the cross-bei' l 1 and is held in position within its socket by the nut 1 7, which itself is held in .piece by the locking setscrew 65. The 4opposite or in terior end of this valve is' provided with en 4 opening or chamber shownlby the numeral 64, communiceting freely and always with the chamber S'. -Gas is therefore always present (when it is' being supplied to '-he fixlture) under normal pressure 1n this c einher 64. Through the slde Wnll'c? the chamber i 64: is bored a suitable opening 57, through which the gas' may pass. A'Simler suitable opening'is bored throu -h the wall ofthe valve casing 8, as indicated y 58-(Fig-13), and in this', oper is inserted of screwV nipple, or other suiteb e device, 9 communicating' with the interior of the gas ring-9. Vhen, therefore, the parts are in the ositio'n shown in Figs. 12 end 13, the ges Wi l-pass fr'e'ely-'lfrom the chamber 64 through the ports or open ings 57 end 58 andthe communication 9 into the interior of the gas ring, and'will be there present under the existing pressure. Through the well of 4this Valve dosing 8 I also bore a vsuiteble port 60, which opens,l through into the interior thereof at the side ofthe port 58 and upon the sume transyerseplene, so that in the rotation of the valve the port 57 will, register first with the ort 60 sind then, es its rotation continues, Wi l register with the port 58. The port 57 is made Aof such size that in the rotation of the valve thsopem'ng will expose the port 58 and the port 61 without closing the 4port 60. From the exterior of the ort 60 the gas is led through pipe 15 (see igs. 10 and 13) to e selected one of the burner yelves, which is constructed es shown in Fig. 10, so that it does not communicate with the gas ring. Such communication with the gas ring is prevented'by the plug 59. In this'wey, I am'enabled to make the parts of the' burner, which is intended to burn;

siigly, the driplicates of similar erts of the other burnersA end attach' them n l to the ges ring in the same way, thereby making ell the v burners ond parts symmetrical und corr:-

spending with each other instead of having l some indepeni'lentI means of sup orting end l carrying tie ges nozzle'intendecP for use in connection with this burner.

At u point in the seme transverse plane through the valve casing, but further along' in the rotation ol? the valve, l bore the port 61, (see Figs. 13 and 16). This port communicetes with the chamber 62 in' the body of the valve casing, end e port 61, leadinf from the chamber 8', communicates with the seme chemher (52. The amount of opening from these ports into the chamber 62 is iegguletod respectively by the set-screws 63 and 63'. This chember 62 opens freely into the pilot light tube 35 which leeds sway to the 'pilot light located and operating as hereinuit-er described. Y It is evident that if the set-screw-63 is proper-ly adjusted so4 as to lenve e very smell opening, ges will be contube 35 en to meinte-in the pilot light constantly burn' 'ing in the ordinary wey; und that, if the setscrew 63 is so adjusted es to permit e' larger t et the openin 57 exposesthe port 61 the ges will he supp ed tothe pilot tube under aV pressure correspondingly greater as the openmg permitted n ntted by 63, and the pilot light will therefore be enlarged.' v l The opening 57 is es `ebove stated, Ina-de "of such size that in its continued rotation it or port=60., 'as shown in Fig. 13, and so ong as the vulveris maintained st this extremit -of its rotation, gais will he supplied throu 60 light, while, whcnthe va ve is'returned to the position shown by c, Fig, 11, ges, under this gritter ressure will be cut off from the ,pilot lig t, W tion, being supplied only through port 6l, end the full su )ply of es will be continued to be rnishe to all t ebnrners. able points in this ges ring I tap the seme with the' ordinary nip le 18 (Fig, 9) or'lBa (Fig. 10). Upon the ower exterior end of this nipple l attach .the interiorly-threeded hollow nut and Velyseet 19.

2i) is e lock nut ol' ilustornary form, used to lock or fix the nut 19 in proper position after it has been correctly adjusted. The interior of this nut 19 forms an extension of the chsnnber 18 which is in thel interior of the vnipple 18. The'lower end of thisnut oi' valve-seat is preferably made of tapering or of noz'zle shepofand is provided at thetip with the tapering o ening 19. 18 is a tip or nee le point rigidly attached in any suitable manner -tothe In' ple 18, so that the ti will be in the axial me of the nipple, en so as not to close the'pessage therethrough, but so as to permit ges to pass stontly supplied from chemher 8' to thepilot in a. quantity sufficiently minute by 68 is greater than that pervwill expose port 61 without closing ort 58- und 58 to all the burners and througl 6l v will be supplied under ressure to the pilot lich will return to its normal condii At suit 4o ening, then, when the 'valve is rotated so i series of lugs 25 from the body of the nipple through into the chamber 18. It will be obvious that as the nut 1.() is adjusted to or from the nipple i8, the exit passa-ge surrounding the needle point In will be made sn'ielier .or larger, andv in this way :i ver f convenient* ond perfect adjostnient can. Je mede regulating the amount of ges whioh will be allowed to escape through the volvesefit, and when the adjustment is perfect the lock nut 2() will be turned down into position and the fixed edjustnient will then be maintained. By' this cmistrimtion lern enabled to lavoid usingr any needle Valve passing through the ges ring and therehy avoid 'the necessity of having the upper portion oi the gas ring accessible, es is required for the adjustment ol the ordinery needle valve passing through such ring, and also avoid the clogging" and el'u'ikingr .elieet caused by obstructing" the interior of the ges ring, but, on the contrary, l sin enabled to have the interior of' the ring free from any obstruction whatever, save es the nipple may project into the saine slightly from the bottom, es ii'nlioeted in vFigs. 9 and l0. The passingI out of this nozzle 19 then4 enters the heed of the hnrer tube 25 (see F' 20 and 2]). l find it eonveni,

.-h p t to. esst this tube o1' brass or other suitable metal, and l, construct it so that the exterior oi its erossseotion will be approximately square.- spline, and, in connection with the shape of t e opening through plate 2'?, prevents rotation of the tube 25 wlisn i ts sleeve 2li is rotated,i's;" et the seine time permits the tube to slide longitudinally within the sleev'e. tube contains en. openI The interior oliitlie passage for the mixed ges and air which hss entered its opp tend, and this passage may be or" alle fori'u s 10i/ri' in Fiy il Upon the exterior of the li he 2o l etteell 'two suitable shoulders vi eli-norn'ielly prevent it' from dro )ping through the opening in the plate 27, en I also attach upon opposite corners e -which work Within the grooves of the sleeve 252 and thus operate like an exterior screw-thread upon 25, and serve, as the loose sleeve is rotated, to move the tubo 25 loi'igitndinslly therein.

The plat-e ZT is provided with a. siiiteble' opening: 27', of shape corres ending with the oJrti-nio. shape ol" tube 25, but elongotefjl in one direction so tlietwhen this opening is unobstructed the shouldersflllloeeted upon adjacent corners of' the-tube as shown in Fig.' 22 will not prevent the ytube from droppingT througlijthe opening,- sueh opening having the hill size shown' in Fig. hv the solid .lines 'et the right in. eonta-et with the' l lines et the left.

tubeend by vthe dotted Upon the opper serine-e" of vide the looking-slide the plete 27 by pinsvZ-lsn 262 which permitthe loc'lr plete I This"v is This is to get the elieet of s slide toward i `from the conter of the fixture. This slide provided with nu openingT the same size as the opening in plete 12T/,and when, thereloro, the slide is pushed to its extreme position nl. the lel't in Figs. 2l und 223, the opening in the slide and the opening in plate .27 will register with eer-h other, and the lube 25 with its ettaffhod When, however, the slide 26 is drawn to its iosition at the right, es shown in Fig. 23, tlie tube will beer against, upon the right, the edge "26 ol' )late L27 find at the left the opposite edge rn' the openingr in slide 36, :1nd the not opening will therefore be ol the same size os the tube, and the shoulders 25 will como in content with and' be stopped by this portion oi the slide 26. With the construction iudicstel b v Fig. 21, `the natural tendency of the ire will be io take the right hand, or lower position, and this is the locking iosition, so that the tube would be normally looked against withdrawal or accidentel dropping out the bottoni, but can. easily be removed by pushing the slide up to the other position. .f dditionslly to insure that this slide shall normallyr be in the looked position, l.' provide .it 1with en upper bentover wing or extension, shown in llig. 21, which wing cornes in Contact with and beers against the exterior of the sleeve 24.' lt follows that the slide een not be adjusted to its open or unlocked' position unless the sleeve is lifted from its normal position and en intentional leliort mede to move the .looking slide to the left. Mere continued rotation of the sleeve, therefore, continued too long can not permit the tube to drop out at the bottoni. construct this burner tribe 25 with an enlarged foot, es shown, and in sneh forni that the moin portion of the tube will beI st en ongle to. e exis ofthe chimney, while the sides of the foot will be 'isrellel to seidA axis or','in other Words, will he vertice-l. The 'vertical sides of this enlarged` foot are thread, and the mantle nonzle 30 is provided with e similar threadjst' its head1 These two parts ereheld together by the threaded sleeve 29,'end ssnitable sreen, as 30', tney beiprovided et env suitable point. This 'sleeve'ZQ begserewed ,up on the foot of .it 1sobvious that by means of the sleeve 29 the distance between the mantle nozzle and the mantle itself een be adjusted, and that, the ingle oi thev burner tube hnge yfronts-n 'angling to a. vertical 'd th the .heads of the burner tubes can provided' with a screw? isnflioienmdzstenee lremoved frein the '/.one of heut and etthe same time the jet of burning;r gas und air een be directed upon the renter end not upon the eide of the mantle.

-Attzrehed to the central chimney by ineens ol' a coller 4l liu-'ve shown e burnelsmpporting plate 23 (Fig. 6), which, for convenience., is mede to flore oiitwarfll und downwardly. It is closed on its inner e ge by the chimney 2 rising therefrom, enden-its outer edge by the ventilator 'erteilte1 4() rising' therefrom. 4ln suitable places, ne around its outer edge, are Ventilating openinffs 55, which permit the stir to pasedownwiudly into the globe. For :i greater freedom of Ventilation in the same wey l provide the enlarged o )eninge 56 and retain imperforete only su cient. of the plate 23 so'thetyit-rnay be strong enough to servevits urpose of supporting the burner tubes. A so, by providing these larger open ings 56, l im sure that 'the outer air will pees in its downward course on nearly ell sides of the headof the burner tube, sind thus' addi tionally insure that the air entering the burner tubefor'mixing with the ges shall .not

be im ro. erly` heated. Suitable openings throu t is plate also provide for the pow sage t erethrough of the burner tubes 25 end the surrounding revolving sleeves 24 hevln', S

f as shown, the enlztrgedfunnel-slmped hea.

which" permit the free. entry of the air end prevent the sleeves from dropping through the openings and whereby the burner tubes and attached mentles are supported, while,

by rotating the sleeve es hereinbefore ex.- pelned, the heed ofl the tube is brought to Ward or away from the gas nozale 19 und the amount of an' which is mixed irfith the is thereby re uleted'. This plete 23 also oerries depen in@r therefrom, the vertical erm 47 und the angling arm 5e .opposite to erich other and for convenience in attaching these firms the outer edge of the Yplete 23 muy be turned down into :t llangeor beeld, asshown in Fig. 2..

\ The globefsnpportin rino' 36 is hinged to the arm 54, and the glo )e is theld in position in the ring by :t seriesof suiteble'seti screws and, nuts 37 3 8. `When the globe is in the closed position' shown in Fig. 1, it ie held closed throughthe operation of the headed pin 49. The sleeve 4S slides longitudinally upon this pin end there is provided :i slotted and enlarged opening in the erin Il? such that when the parte are brought together end the sleeve i8 is p'ushed inwardly, this f opening in 47, and the sleeve can not pese through the contracted opening in' the arm 47, and. the globe-sup' porting ring is therefore held up close against the plete 23. V When, however, thesleeve 1 8 is returned into the position shown in Fig. 2 the pin 49 een pass through the neelr 'of the lobe-supporting ring carrying the @lobe will then swing down` wardly upon hinge 5() et the lower end of the erin 54, this hinge connecting lower end of suoharm end the oorreeponding `der of the structure.

the'

Adinel slot in which the heeded pin 53 travels,

and to that sideof the erin 51., whieh is the upper eide 1nY Flg. 2, or the under side when the globe 1e closed, I attireh an extension erm 52, the [ree end of which laps over and rests l along the upper side of the erin 54. when the erts are in the position shown in Fig. 2.

ust before this .tree end of 62 in' the revolution of the perteupon the hinge 50, reaches the osition shown in Figf, it will strike the heer of the in 53 and will tend to push this head upwardly out of its Way, so that the pin 53 will retreat upwardly in the slot in which it travels. l'f neoeesery, the pin een be manually moved upwardly in its slot, so that the heed ol the pin will be out of the way of the swinging tree end oi' the erm 52. Then, when this erin lies ile/t againstnrm 54,.

the )in` 53 muy be moved, or, by gravit.' will rop beek to the position ei'xown. in Fig. 2,. so that the heed of the 'pin extends over the end of arm 52 and ioelrs it in position. this way, instead oi' permitting the globe to hang down 'vertiegilly from the hinge' and thus leaving it in the of the oper-:iterY who is 'cleaning the lmnp or renewing the mentles, l @euse the globe' to Swing throu h oomplete half oli e. eirele eind 'then to e. looked up et one side-wholly out of the Way ofthe o eretor.

turned to their former position up in close oonteet with the ilete 233, es shown in Fig. i. .it 1e neoeeeery t et suitioient 'external air be.

supplied both to the Ennseli telnet' arid to the incandeseent mantlee, and, for this purpose, it has been Customary to 'ineke' openings or erforatione in. the externeiofreing surround mg the structure. minutos, et its lower end, just above the 'ges' ring; but in the downward extension 1li) of this casing, l provide ,tentileting openings;v 39 and in order to prei 'de eeey echoes te the parte surrounded by this downward extenfx sion, so that suoli parts may he eiljusted and regulated and cleaned, l omite this downwirrd extension reinowilile from the remein By making it thus separable in whole or in part, ee hereeiterde scribed, l avoid the necessity for melting the casing ,itself vertically Inoveble, or for tele AscopingA one portion of the casing upon `a` nrl lne Ventilator oasrie heli/ee hin ed together et 4521?@ shown. in. l

Fie. sur-r point of hinging being' substantietllyopposite the nieeting peint of the free tion u on one side throng i the nipple 9 andu on the other side by a suitable bracket 21 he d to the arm 6 by l the screw 22 (see Fig. 9).

' The protecting'plate 42 obviously can not protects theff. whole of the struction of the valve and valve casing.

is .apparent that when the valve (see Fig. 13)

ends of the` two halves, which is at the vulve and the passage of gas through the valve will as indicated in Fig. 2, and these ii'ee ends im' tflgeqentirnly prevented (excepting through the the valve casing will not prevent them iron! coming substantially together at the remainder of their meeting edges. 'lhe upper edge of this casing extension is provided with. a bead 41 (Fig. 1`) ada ted to tit over the lower edge of the main bo( y of the casing, and the lower edge may be provided with a similar bead adapted to lit over a suitable projection upon or connected with the plate 2b. Eacl'i half section of this casing 4() is provided with a catch or lock 46, shown in Figs. 2 and 7. This catch or look may turn or slide so as to pass up into or within. the lower edge ol' the upper main part oi." the casing, and n'iay, as in the form l have shown, pass through a slot in the bead ,141. The hinge 46 extends the full Width or height of this casing section and it is, therefore, apparent that when the catch 46 upon the right side of Fig. 2 lis interlocking with the casing aboveend the catch `upon the left side is unlocked, the left haltof this casing will swing around on the hinge, or be removed if no hingebe used, anden ose that half of the 1'nterion and that this ali may again be returned to position and its catch or lock 46 be closed and then the correspond ing loch upon the other hahc be opened and theother or right half will swing around u, on the hinge or be removed and expose that alf Vof the interior; or that, if both catches are u 'nlocked at once, hoth halves may be removed or opened slightly uponthe hinge and the entire device can' then be removed and placed in any convenient location-until the Work is finished and the operator is ready to replace this ventilator casing section.. Nhen 1n position, the interlocking of the bead 41 with the adjacent edge of the inain casing above prevents any vertical motion, and the inter-` ocking by the catches 46 .prevents any lat eral motion, so--that the stru ct'ure is pcrlectty firm and rigid. The gas ring is .suprorted in proper posiy the valve casing be extended over the Whole top ofthe chirn ne'y Without seriously aecting the draft therethrouvh, and I have, therefore, found it especially t esirable to make it in the turned up' form clearly shown in Fi f. 8, so that it racket 5 but does not seriously impede the draft-of the chimney.

I have already described the general c0111- isrotated to its eirtreme position toward the left, the opening?v Will be below' the port 60 cut away so that as they como togothertluiyvalve casing` to the always burning pilot will surround the valve casing and so that# light). flfhis described position is the p0sition o l' the valvowhen the parte are as shown by the solid lines in Fig. 11, the same beln the position indicated'by the letter-a.

suitable downward pull upon the head 12 will chan-gatito )arts to the osition indicated by the dotted lines marke t b. The opening 57 will then register withthe port 60 and gas will he supplied through the pipe 15 to its roper burner, which is one o those located immediately adjacent to the pilot light, and this burner will therefore be ignited by that )lot light. it .is necessary for the user to now when 'this point is reached in the rotation of the valve, and for this purpose l provide the device shown in Figs. 1.2 and l5. l bore a suitable opening through the valve Casin and insert therein the coiled spring 162, t e tension of which can be re ulated by the screw 15, and in the bottoni-oi: the opening, and-under suitable tensib from, this just at the instant when the parte vreaoh'the position shown by dotted lines t in. Fig., 1 1 and-When the .,assage 57 6) 15 is open. This serves to chec. the rotation of the' valve at that point and hold the same stationary at that point, hut at the same time the depression into which the bali drops is so slight' and the tension et the spring is such that alittleadditionalorce exerted to continue the rotation Willi force the ball back against the s ring and permit the rotation to continue; iis device is therefore an indicator stop, but not an ahsoiute stop, and it Works as described in thisforwarfl rotation of the valve at a point when one light only is provided with gas and is burnlng, and it Works in a similar Way on the o posite rotationof the valve when all the lights but one have been extinguished, and this one only remains burning. As Athe forward rotation of the valve continues, the parts will-take the osition shown hy the dotted lines c, andi' it is stili further continued with sufficient force to overcome the tension of the spring4 1 4 bearing against the head 14, which spring is los carried on the bent erin- 13, the parts Will.

take the position shown by the dotted linesd until the-hires is released, when they will automatically return to the position shown by c. flhe oliect of this construction is i-to supply gas first to one burner and then to all the burners, and then, finally, for enlarging the pilot lirht andl then automaticallyreturning thle pi et light to its normal condition. This construction and operation are more said ni )ple sind movable towards and from said valve. i

2U'. ln a Las light lxture, the combination with a gas delivery ring, i'iipplos oonneC-ted therewith, ilrurien burners receiving gas from said nipples, mean )r sup )orting said burners :it a distance 'liinn und indopendw ent-ly oi' said nipples, and needle valve for eaoli nipple, each needle valve comprising a tapering 'valve member lixed in said nipple and a :zap nut edjusiably mounted on said nipple, said nul having a tapering f ariiee eo operating with said tapering valve member,

2]. ln a gas light i'lxtlire, the combination oi' the gas supply pipe, the bln'ners connected. therewith, and an ine-losing easing therefor inf-.hiding a hinged globe, and means for loeking the globe in open position,

ln. a gas light 'li xture, the oonbil'iation. of the gas suppl pipe, the burners oonnected therewitb, ernten iurlosing raising therefor ineludingra globo, a bingo connecting said globe to tlie'body oi the iixture and means associated with said binge to look. tbe seme in extended relation lo hold the globe, 1n open position` 23. ln a gas light iixture, the combination' of tbewnain ing, globe closing the bottoni thereof iii v f connecting; the globe to tire easing, a log; on one leal" of@ adapted to tend over the second hinge leai3 when said binge is extended, and a @steli on the second leaf to raga-,ige said lug: to leek the bingo and tbe globe in open position,

24. ln an imerted ineandeseen t gas lanip',

a Bunsen burner ineluding e, tube polygonal in orossseotioe lire-ving s series of lugs on opposite laces, a sleeve-having internal screwV threads to engage said lugs to adjust tbe tube longitudinally@ and means 'for rotatably sup-` portin said sleeve,

i 25. 1 nlan inverted ineandesoentfgas lamp,

a Bunsen burn' f including a tube poly onal 'mounted, and

in crosssoetion. having a series= ospaoe lugs on opposite faces, a sleeve' having' internal sorew tba-ends eofl'iperating with said lugs to adjust said tuhelongitudinally, a supporting plate in vvl'iieli said sleeve isv rotatably a plate through which said. tube projects, "aid plates serving to hold. the burner in pf .ltion and admit of the tube boing raised or lowered. V.

26. ln an Iinverted incandescent gas lamp, a Bunsen burner ine-hiding a tube polygonal in cross see-tion having a series oi spar-,ed lugs on opposite larves, a sleeve having; internal screw threads eoi'jpoi ng with said lugs to adjust said tube longitudinally, a supporting plate Vin whieh said. sleeve is rotatably mounted, a plate through which said tube gprojeots, said plates serving to hold the ne hinge l opening surrminding the ylube and adapted to he moved lo muse the opening to register to release the tubo or to cause opposite edges oi the plates adjarent ille openings to engage the tube.

137. ln an i'nvi-rted inoamlesoent gas lamp, a Bonson burner including a tube polygonal. in cross section having a series of spaced. lugs onv opposite faces, a sleeve having internal serew threads cooperating with said lugs to adjust said tube longitudinally, a supporting plate in whioh said sleeve is rotatably mounted, a plate through which said tube orojects, said plates serving to hold the urner in position and admit of the tube being raised or lowered, said latter plate having en opening to :ierinit the passavo 0l the tube, a sliding lp ate having a similar opl-.ning surrounding the tube and adapted tf moved to cause the opening to register to release the tube or to cause opposite edges the tube, anda lug on the tube to prevent the saine dropping through the lower plate when tbe opening in the is out of registry with that in, the sliding plate,

28. In an inverted incandescent gas a Bunsen burner including :rt-Phe poly Ona-1 in cross seotion having aseiies' of, space v lugs on lopposite faces, a sleeve having internal sereni tlireinl: cooperating with sald. lugs to ad just said 'tube longitudinally,.s supporting plate in Wbioli said sleeve is rotatably mounted, lower pla-te having an o ening through wliiel'i said. tube projects endt ongle Wbieli said tube may be removecL a slide plate iia'finge. similar opening, said o ening being adapted to register. and a spring u on said slide plate to engage the sleeve to ook the slide pla-te with theopenings aforesaid out of registry.

29 In an inverted incandescent gas lamp, a burnerAvtnbe comprising an upper section having anenlarged screw threaded foot, a tip having a similarly screw threaded portion, a

4rny hand in presence ol" two su bseribing witnesses.

- JOSEPH MAAS. Witnesses:

Henna. Mrs, Jenn' L. lloLLAsmcn.

of 4tbe plates adjacent the openings to engage' lamp, Y

screw threaded sleeve cooperating with the In testin'iony wliereo'l l have hereunto set

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