Novelty lamp

Application filed May 28,

It is the object of my invention to produce «ηΤπ ⁷ ?^{mp Which wil1 have an} unusual and attractive appearance

In carrying out my invention, I associate ^thr u?'^Ce °^f -^{hght and heat a vessel} havn £ ^I1g^ht-^transmittmg Avails and containing a supply of liquid, the vessel being disposed tW^Cr tP°^sltlon relative to the light-source m Ϊ ^emanating therefrom’ will pass 10 thiough the vessel, while the heat which the vessel receives will raise the temperature of th! rn^U1-^dJ^t0 tl® P°^int- Conveniently, the liquid within the vessel is water and the • ^Vt^SSel xV^{3 sealed and} evacuated to a point ’ Si® h^htu^W γ®^Γ Z ^{boil at the} temperature to which the liquid is raised by heat from the light-source. The liquid in the vessel may be clear or colored; and if desired, it may contain granules or flakes of insoluble material tili^uld ^{1 be agltated by the} ebullition of • The accompanying drawings illustrate — yations of three different’lamp-constructions ^{In c 1 my inve}ntion is embodied.

lhe construction illustrated in Fig. 1 embodies an electric lamp-bulb 10 mounted in a suitable base 11, which base may be of anv closed liquid-containing essel 12 m this construction resembles in outward appearance a not unusual type of amp shade, the vessel being supported from the lamp base 11 by any su^: table supporting means such as the spaced finders 13 ^δThe bottom wall of the vessel 12 is provided with a re-entrant portion 14 forming a pocket for the reception of the upper end of the lamp bulb 10. The vessel 12, after having· had a supply of liquid introduced into ^’t ^S evacuated necessary arid sealed birih S^e-^{lamp ldu}strated in Fig. 2, a lamp bulb 20 is mounted m a base 21 which at its upper end, is provided with a cup 23 ’the side walls of which extend upwardly^beyond the top of the lamp bulb 20. The liquidZ ΐνΤ^{1 24 ί8} ·ή^{05νη as of s}Pherical shape. Like the vessel 12 shown in Fi°· 1 the vessel 24 contains a supply of liquid^and sealed^^{13 7 evacuated}, if necessary, and fccdlCU,

1,866,098 radiating condensing surface above the normal liquid level. . . ,

5. A novelty lamp, comprising a source oi_flight, a source of heat, a closed, vessel havin»· light-transmitting wall portions and arranged to receive heat from said source of heat and to intercept at least part of the light emanating from said source of light, and a supply of liquid within said vessel, said vessei being at least partially, exhausted to reduce the gas pressure therein to a point such that the heat received by the liquid from said source of heat will cause ebullition of the liquid. . . «on

6. A novelty lamp, comprising a source ot light, a source of heat, a closed vessel having light-transmitting wall portions and arranged to receive heat from said source ot heat and to intercept at least part of the light emanating from said source of light and a supply of liquid within said vessel, said liquid having a boiling point such that it will boil at the temperature and pressure conditions obtaining within said vessel.

A novelty lamp, comprising a source ot • heat and light, a casing for said.source, said casing having a light-transmitting opening and a light-reflecting inner surface, a vessel having light-transmitting wall portions, said vessel being mounted adjacent said opening ^Jto receive heat and light from said source and a supply of liquid within said vessel, ^sam liquid having a boiling point such that it will boil at the temperature and pressure conditions obtaining within said vessel. ''

A novelty lamp as set forth m claim 2 with the addition that said vessel is provided with a re-entrant portion in which the source of heat and light is located.. .

A novelty lamp as set forth in claim < with the addition that said vessel is formed to provide a lower liquid-containing chamber located adjacent said opening, an upper condensing chamber, and a restricted neck connecting said two chambers.

In witness whereof, I Stanley Green have hereunto set my hand at La Fayette, Indiana., this 20th day of May, A. D. one thousand „>_Mhundre<fan«h^_{Ey &} GREEN.

bulb passes through the ebullient liquid, illuminates it, and produces a very novel and ^As^^ev^ousl^^tated, the liquid may be clear or colored; and it may, if desired, hav ⁶ suspended in it particles of insoluble material the agitation of which in the ebullien liquid adds to the unusual and attractive appearance of the lamp. Like the ¹¹⁽l™d> ^he ₁₀ walls of the containing vessel may he clear ^OTThe pressure obtaining within the liquidcontaining vessel of the lamp will depend unon the boiling point of the liquid, upon ₁₅ the quantity of liquid in the vessel, and upon the temperature to which the liquid is raised by heat emanating from the lamp bulb. It is practical to use water as the liquid in the sealed vessel; but if liquid of a lower boiling ₂₉ point is used, the vessel need not be evacuated to so great an extent.

In referring to the liquid-containing vessel as having been exhausted or evacuated. 1 have in mind the removal from it of a suffi25 cient portion of any gas such as air which is non-condensable at the normal operatm_e‘'Tim that through the , use of an ordinary electric lamp-bulb I have so provided a single source for both the light and heat necessary in carrying out my invention· but it will also be apparent that the necessary light and heat need not emanate from a common source, and I therefore do 35 not restrict my invention to a single source of light and heat.