US897616A - Inverted incandescent gas-lamp. - Google Patents

Description

INU, 897,616: PATENTED SEPT. l, lf.

M. GRAETZ.

INVERTER) INGANDESCENT GAS LAMP,

APELIGATION FILED 313.28, 1906.

" ATN Specification .Toall @Romiti/nay encara.'

*Be it' lrnownthatfl, MAX 'Genera a subject vof the King 'f Prussia, German Emeror,l and resident of 92-93 Elsenstrasse, erlin`, `vKingdom {O Prussia, German @Empire; have'inventefd certain new and useful Inprovements inlnverted Incandescent Gas-Lamps; of which the following is an exact specification'.V

This inventionrelates to inverted incandescent gas lampsy and the object of the present invention is to provide an improved vincandescent gas lamp' which shall work more eflicientlyfthanprior'forms and at the same time be simple 1n construction.

The invention.isillustrated in the accompanying drawingsinfwhich Figure y1 vis a cross section through an imi- [proved lamp in accordance with this invention. Fig. 2 is a section on lthe line A-B Fig. 1. Fig. 3 is an enlarged detail ofthe gas nozzle regulator shown in cross section. Fig. 4 is a separate' side view and Fig. 5' is a sectional plan of the regulating organ.

`[according to' thefforrn shown gas enters by apipe nipple e into the regulating device the direction of vthe'flow of the gas being shown by the arrowsin Figs. i and 3. To this regulating device there is iin-ed a tube m "which in turn is 'fixed to a tube b forming the burner tube and carrying at its lower end an enlarged piece-lc towhich a orcelain burner tpn is iixed, a gauze or the like t' being preferably arranged in' .the connection between the boxor tube 7c and the porcelain burner tip for the purpose''of giving a final thorough lmixing tothe gas and air which have passed in company down the burner tube b. .On lthe shoulder formed by the box lc there rest the flanges of l-the chimneys c which as canbe seen from Fig.' :2 vare shown as two in number andjof segmental'` cross section. 1

The two segmental `cliimneys are arranged opposite "one another 'with the burner 4tube bf betweenso thattheir outer surfaces form arts iof `the samecylindiical surface. The Aowe'r endof the chimney is provided with a v, turn up maas seen at'tlie right hand of Fig. l

inwhich the frame plate t rests. The frame plate isfin the form of'an inverted channel shown with"itsv outside flange il extended downw'ardiand' conveniently cut to an ernah of Letters Patent.

' pressed 'upwards by means of'a sprintgC rement@ sepa i, reos.

^ Application led February 28, 1906. Serial No. 393,513.

mental shape as shown. ln this outside flange `there engage the screws w which support the globe -w in the well known manner. The globe w is closed at its'lower end. The frame carrying plate is also used to support the outside casingt which 'forms a cover arranged concentrically outside the segmental chimneys with an air chamber or space between.

The upper and the lower sides of casing 'i are preferably bell mouthedvas shown and the lower bell mouthed part is provided with air inlet holes forpermitting air circulation. ln this way air circulates not only in the partial annular space between the chimneys and the outer casing but also in the space between the flat sidesof the segmental chimneys which space communicates with the annular space and contains the burner tube. .The burner tube is thus arranged in an air circulating chamber or casing. The upper end nf the chimneys also are provided withl curved hood portions x by which the gasesV rising within the chimney are deflected away from the burner tube and the air vinlet m thereto. The gas nozzle is located `just 'above the delecting plates 1c of the chimneys and consists of a casing' or'nipplea in which there works a hollow pin rprovided with cross ports e and a bridge piece z carrying a nozzle z lwhich controls the opening d of the gas nozzle d. The pin 'i' is continually engaging en the under side of the pin hea and the distance to which the pin 1' is pressed upward is regulated by means of -a pointedV screw s engaging on the u per side' of the nozzle. A further screw s2 1s preferably also provide/d for preventing the pin r from being entirely forced out when the adjusting screw s is withdrawn.

The nipple a is provided with an external screw which engages the tube m provided with the air openings over which there is preferably provided a gauze s to prevent the entrancey of dust particleswith the mixing air. The tube m is provided withl a down- -Wardly convergingportion in which the internal mixing tube h is supported. Thus the gas and an" entering through the nozzle d and the .air openings in .the tube m respectively are intimately mixed in the tube h andpass at considerable velocity down the burner tube without' coming closely in contact with the walls oftheburner tube which as described above are cooled externally by the air circulating between -the exterior of thev vchimneys and the casing' i.

vided with shoulders 'g on which the inverted incandescent gas mantle p is supported inV the well known manner.

According to this construction the gas anc pure air entering by the nozzle and -air openings. are thoroughly :mixedywhilel assing down through the cooled burner tube and the air for completing the combustion is p'reheated before 1t comes in contact with the mantle yby passing in the 'direction of tlie arrows y round the outside of the funnel o.,

Further by means of the'hoods qc on the chimneys the burned gases are prevented from 'enteringthe air inlets in the tube m and lastly by providing the funnel 'v with a practically 'air' tight fitting to the iiange i3 the effective length of the chimney for the combustion gasesl is considerably increased and in consequence, as is Well understood, the draftis thereby increased and 'the working 'of the lamp renderedl more eificient.

4Having thus fully described the nature of myinvention, .what I desireto secure by Letters Patent of the United States is 1. An inverted incandescent lamp having in combination, segmental chimneys, a

burner tube disposed in an air Aspacebetween and supporting said segmental chimneys, a burner tip, a mantle supported by said burner tip, a transparent extension common to said se mental chimneys andsurrounding the mant e,a 4globe closed at its lower end and supported vfrom vsaid segmental chimneys, an outercasing supported from said chimneys and leaving an air circulation space between itself andthe chimneys.

2. An inverted incandescent gas lamp having in combination,l a lamp casing, a plurality of chimneys of segmental cross section supporting said casing with a partially complete annular space between, a burner tubesupporting said chimneys and arranged between but outside the'same, a gas nozzle and air inlet piece arranged above said chimneys and attached to the-burner tube, a burner tip and mantle attached to saidl burner tube,` atrans- Between ported by said se parent extension 'common' to said' chimneys and surrounding said mantle.

3. An inverted incandescent gas lamp having in' combinatioma burner tube exposed to the atmosphere, a burner tipand lmantle for -said tube, segmental 4chimneys supported from said burner tube, a'gas nozzle and air inlet above said segmental chimneys, deflecting hoods onsaid segmental chimneys for deiilelcting the burned gases .away from said air i et.

4. An incandescent gas -lamp' having in combination, a burner tube, a burner tip and mantle kr said tube, segmental. chimneys .zle and air inlet connected to the upper part of the burner tube and above said chimneys, deilecting hoods on said chimneys for deiiecting the burned gases away from said air inlet, a casing lsu ported by said chimneys and surrounding e same vso as lto form an air circulating space in which said burner'tube is disposed.

5. An inverted incandescent gas lamp havsupported from saidburner tube, a gas nozv ing in combination, a burner tube, a burner'v tip and mantle for said tube, a plurality of chimneys of segmental cross section supported by said burner tube, a gas nozzle and air inlet piece on the burner tube and arranged above the opening of said chimneys, deflecting hoods on said chimneys opposite said air inlets, a transparent extension 'to said chimneys surrounding the mantle; a casing sup- 4 dmental chimneys and forming an air circulating space in which said burner is placed.I i

v 6.A An inverted incandescent gas lamp having in combination, a burner tube exposed to the atmosphere, a burner tip and mantle for said tube, a plurality of 'chimneys of segmental cross section supported by said burner tube, a gas nozzle and air inlet piece on the burner tube'gand arranged above the opening of said-chimneys, said air inletpiece having a downwardly converging end, a mixing tube with a downwardly converging mouth piece resting on said air inlet piece and projecting into the burner tube.

" 7. An inverted incandescent gas lamp having in combination, a gas nozzle with a regulating or an, an air inlet piece attached to said nozz e and having a downwardly converging end,` a burner-tube fixed to'said downwardly convergingend, a mixing piece' with a downwardly converging mouth piece resting in' said air inlet piece and projectinginto said burner tube, a .plurality of. segmental chimneyssupported from said burner tube and providedwith.'deecting hoods'at their u perV ends o posite the air inlet openings, a larger tube fixed to said burner tube, aburner tipcarried by said larger tube, a

lio

mantle supported by said burnertip, a lamp casing surrounding said chimneys and sup- Qrted by the same so as to form' an ail' circuin Witness whereof have hereunto set my ating easing @mund the chimneys, a transhand in the presence of two Witnesses. parent extenslon on the ehlmneys and sur- M Y GRUETZ roundlng the mantle, a globe Wlth a closed 5 .bottom surroundin said extension and per- Witnesses: mittng of air circuation outside .said exten- HENRY HASPER,

si'on to the mantle, substantially as described. W01 DEMAR HAUPT..

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