US1257175A - Lantern. - Google Patents

Description

H. E. BANDLOW.

LANTERN.

APPLICATION FILED MAR. 29. Isn.

Patented Feb. 19, 1918.

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HENRY E. BANDLOW, OF CHICAGO, ILLINOIS, ASSIGr-N'OR TO NATIONAL STAMPING & ELECTRIC WORKS, 0F CHICAGO, ILLINGIS, A CORPORATIN 0F ILLINOIS.

LANTERN.

Specication of Letters atent.

Patented lFelo., 19, 1918.

Application led March 29, 1917. Serial No. 158,27.

To aZZ whom it may concern.'

Be it known that I, HENRY E. BANDLow, a citizen of the TLlnited States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lanterns; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying draw- 10` ings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in lighting fixtures, and refers more especially to an improved lantern of that type whose source of light is derived from a hydrocarbon liquid under pressure, such as gasolene, and the invention consists in the combination and arrangement of the parts shown in the drawings and described in the specification, and is pointed out in the appended claims.

The present improvements refer more specifically to that type of lantern or light ixture wherein an inverted burner, equipped with a refractory mantle is employed to increase the candle power of the light, and is directed to means for suitably cooling the parts of the lantern structure beneath'the mantle so as to prevent the lantern becoming excessively hot, especially in the event that the mantle should be broken and the iame be directed against the subjacent lantern structure.

have shown in the drawings an approved form of construction which has demonstrated its practicability in use but it will be understood that the invention is capable of some variation within the spirit and scope of the claims hereto appended.

1n the drawings Figure 1 is a dotted outline of a standard lantern, showing in full lines my invention applied thereto.

F ig. 2 is a perspective view of the defleotor plate or disk and cooling tube.

Fig. 3 is a plan view of the deflector plate or disk.

As shown in the drawing, 10 designates the reservoir of the lantern on which is supported the frame or cage 11, through the medium of a hollow neck 12, that is perforated to permit air to pass into the lantern structure and upwardly through perforations in the bottom plate 14 of the burner chamber. Said lamp frame may be made of any usual or preferred construction, and in the type of lantern herein shown it is arranged to support a transparent cylindric shield or globe, preferably made of mica. 15 designates the fuel pipe upwardly through which fuel from the reservoir is carried to a mixing or carbureting chamber 16 that is supplied with air to produce a combustible mixture through a pipe 17 that extends downwardly herefrom andthrough Vthe bottom plate of the burner chamber. A goose neck pipe 18 conducts4 the burning mixture to a depending or inverted burner 19 which is shaped to receive an inverted mantle 20.

These features of construction constitute, in themselves, no part of the present invention and maybe variously constructed.

1n addition to the perforations in the bottom plate lil of the burner chamber, through which cooling air is admitted to the interior of the burner chamber, there is provided a centrally located cool air delivery pipe 22 which is anchored in any suitable manner in the top wall of the reservoir. Said pipe is closed at a lower end and is provided near its lower end with one or more openings 23, of ample area to admit a draft of cooling air to the pipe. The pipe extends upwardly through the bottom plate 14e of the burner chamber and is screw threaded at its upper end to receive upper and lower clamping nuts 24, 25 between which said bottom plate of the burner chamber is confined, and by which the parts are united rigidly together. rbe said cool air pipe 22 is located centrally beneath the mantle and burner so as to direct a column of cool air into that part of the burner chamber which is in the direct influence of the burner flame. Said pipe is provided to maintain the parts suitably cool and to prevent the flame overheating the metallic lower plate of the burner chamber and the tion or localization of heat against the central portion of the lantern structure when the mantle is broken, there is provided a deflecting plate or shield 27 which is located centrally over the mouth of the cool air pipe 22 and beneath the burner andv is made of considerable diameter with respect to the diameter of the air pipe. Said disk may be attached to the lantern structure in any suitable 'or preferred way that will hold it in place. As herein shown, and preferably, it is clamped in place by the upper clamping nut'V screw' threaded to the cool air pipe as aforesaid; said disk being provided with a down turned member 28' which terminates in a horizontal apertured arm Q9 that lies over the said plate and through which said cool air pipe extends. Said arm is: clamped between said plateV and the upper nutv 2510i said pipe. I The said disk is in the direct path of the incoming cool air from the pipe 22,1sothat therising'column of cool air tends to cool the disk.- Moreover the disk, being spaced from the bottom plate of the burner chamber, circulation of cool air is permitted betweenl said disk and bottom plate, thereby Y further reducing liability of the plate, or

the cool air pipe'itself, becoming unduly '-heated, so as to transmit heat to the reservoir below.

Furthermore the disk or shield, being lo cated in the direct path of the burner flame, in the event of a breakage of the mantle, it has the effect of diverting the heat of the fiame or spreading it outwardly s0 as to meet the incoming cool air from the cool air pipe, which is itseli:I diverted or spread outwardly by its impingemen't against the lower face of the disk, so that thereby the cool air is applied in an eiicient manner to prevent localized heating of the lantern structure. The air which passes into the lantern chamber rises Vas itstemperature is elevated through the chamber and passes outwardly therefrom through the perforated top portion of the lantern beneath the dome.

' I claim as my invention 1. A light fixture having an inverted burner and a burner chamber having a perforated bottom wall, combined with a fuel Y reservoir below the chamber, communicating with the burner, and a cool air pipe arranged centrally o't' said burner'and chamber and extending upwardly from said reservoir through said bottom wall to deliver cool air to said chamber.

2. A light iixture having an inverted burner and a burner chamberhavinga bottom wall, combined with' a fuel reservoir below the burner and chamber, communicatM ing with the burner, a cool air pipe extend-v ing through said bottom wall and arranged centrally of. the burner abovethe reservoir to deliver air to said chamber, and a deflecting shield between the mouth of said pipe and the burner and spaced a distance fromV tending centrally upwardly through said bottom wall beneath said burner andl anchored to the reservoir, said pipe being4 screw threaded'at itsupper endI and nuts threaded to said upper end ofAV the pipe between which the bottom wall of the'burner chamber is confined'. n

l5. In. a gasol'ene lantern, `a reservoir, a burner chamber thereabove, an inverted burner centrally within .the chamber and communicating with the reservoir and with the atmosphere, said chamber being provided withf a bottom wall', a cool air pipefextending centrally upwardly throughr said bottom wall beneath said burner and anchored to the reservoir, saidV pipe being screw threaded at its upper end, nuts threaded to saidupper end of the pipe between which the bottom wall of the burner vided witha bottom wall, a cool airpipeexchamber is confined, and ay deiiecting plate Y or shield located above the bottom wallr and centrally over the outlet end of the coolf air PlPe f Y 6. In a gasolene lantern,` a reservoir, a burner chamber thereabove, an inverted burner centrally 'within the chamber and communicating withY the reservoirvand with `the atmosphere, said chamber Yprovidedwitha bottom wall,y al cool airY pipe extending'upwardly centrally through the bottom Vwall of the chamber beneath the burnerl and anchored tothe reservoir, and a deiiecting plate arranged between the outletA end of the cool air pipel and theburner and spaced from said pipe, with means'for supporting saidy plate'on said pipe. Y j

7. 1n a' gasolene lantern, aV reservoir,` a

burner chamberV thereabove, an .invert-ed' burner centrally within the' chamber and communicating Vwith vthe reservoirv andl with the atmosphere, said chamber being p ro- 'videdA with a1 bottom wall, a cool air pipe y extending centrally upwardly'through said bottom'Vv wall beneath vthev burner and anchored to the reservoir, ay detlecting` plate arranged betweenfthe outlet end ofthe cool air pipe and the burner Vand. spaced'` from said pipe', said plate being provided with a.

downturned member which terminates in a horizontal apertured attaching member and the upper end of the cool air'pipe eX- tending through the apertured attaching member and a nut screw threaded to the said upper end of the cool air pipe to X the delector plate member thereto.

8. In a lantern, a deflecting shield provided With a downturned member terminating in an apertured attaching arm, combined with a cool air tube extending through said attaching arm, with means to fix said attaching arm to said tube.

In testimony whereof I claim the foregoing as my invention, I hereunto append my lo signature in the presence of two witnesses at Chicago, Illinois, this 24th day of March,

HENRY E. BANDLOW. Witnesses:

WV. L. HALL, A.. E. WALBRIDGE.

Gopes 'of this patent may be obtained for five cents each, by addressing the Commissioner of Entente,

Washington, D. C.

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