US1498871A - Electric lamp - Google Patents

Description

Patented lune 24, i924..

URG, OF CHICAGO, ILLINUIS, SSIGNOR T0 H. A. FURG &

COMPANY, yF CHICAGO, ILLINOIS.

ELECTRIC I.

Application filed November 37,' 1923. Serial No. 677,203.

To all whom. t my concer/n.'

Be it known that I, HENRY A. FRAMBURG, a citizen of the United States, residing at Chicago, in the county of Cook, State. of'

. mounted within a casing which carries the globe, the parts being so constructed and arranged that the globe may be readily removed for the purpose of replacing the bulb or bulbs enclosed within.

It has been the general practice in the past to use screws for holding the globes or shades or the equivalenty glassware to the holder, but such an arrangement has been a troublesome one for the reason that in setting up the screws to hold the shades or globes, undue pressure' is applied to the rim thereof with a conseguent breakin hence if breakage does not occur at time o putting globe in place, it may occur later due to expansion by heat. Furthermore by the use ever centralized w-ith respect to the bulb.

Where lamp bulbs are enclosed in a globe the light which passes through the globe comes directly from the filament of the bulb and part of this is absorbed in the globe.

It is one of the prime objects of my invention to provide a lamp in which theligl'it rays which ordinarily pass upward are relected downward, thereby adding to the light emanating through the globe.

A further object of my 'invention .is to provide an arrangement in which the globe is held substantially all the way laround its periphery by a holding ring, thereby eliminating undue pressure at any point as is obtained by the use of screws.

While attaining the object last describe/d, it is a further object to rovide means whereby the globemay be easily and quickly removed -for cleaning purposes or for the 1pulrlpose of changing or removing the lamp A still further object is to provide aflamp which may be readily connected up to a of screws the globes or shades are rarely` of the rim 17 is shown in Fig'. 2

lighting circuit; also one in which the heat generated by the lamp bulb may befeasily dissipated without leaving openings for bugs and` insects to get inside the lamp.

`'Iheseand other objects will be apparent to those skilled in the art after a study of the specification taken in connection with the annexed drawing, wherein:

Figure 1 is a part elevational and part sectional view of the lamp, but with the lower part of the globe broken away.

Fi ure 2 is a view on a considerably reduce scale of the bottom of the lamp, 'without the globe.

VFigure 3 is a fra mentary view of a portion of the casing s owing the Way of. lockingvtwo parts of the casing together.

iigure 4 is a fragmentary sectional view vshowing a modified form of a locking'means to be used in place of that shown in Fig. 3.

In the drawings 1 illustratesa base, vpreferably of metal, which is formed with an annular lip 24, which has two portions 18 and 19 out awayat points substantially diametrically opposite for the purpose which shall be later referred to. On the base 1 is carried'a bracket 2, the same being fastened thereto in any satisfactory manner, such as by screws 10. The base 1 also carries a lamp socket 9, the same being fastened thereto by screws 11. Supported on the top part of the bracket is a bell-sha d member 4, which acts as a 'support for w at may be termed a ring member 3. The member 4 has an annular rim 23, which carries the ring 3. The upper edge of the ring 3 has notches 14, three of which are found to be satisfactory for the purpose. Punohed out of the material of the member 4 are lugs 13, which are adapted to vallow the notches 14 to pass over, after which the ring 3 is turned to the position shown in Fig. 3, thereby locking the ring in -position on the rim 23. The ring 3 has a" downwardly projecting flange 25 that is adapted to fit downwardly over the lip 24 on the base 1 encompassing the rim 17 on the globe 12, thereby perpherally engaging the globe and holding it in position. The inner line ring' y3 isv turnedpuntil theinotches114 are,

by a dotted l Vthe holes l5 to the outer'air by way in line with the lugs i3 when the ring member 3 may be raised and the globe tilted so that it will pass over the cut- away portions 18 and 19 of the base l, which cutaway portions therefore act as means for passing the globe over or withdrawing it from the base l.. ln place of the punched up lugs 13 on the member a, screws may be set into the member l and perform the same functions as the lugs 13, all as shown in Fig. d.

Attached to the bracket 2 is a member 6 preferably threaded so as to be screwed into the bracket 2 and a nut 8 is used to clamp the member on to the bracket and at the same time lock the member 6 in place. Passing over the upper end of the member d is a dome mem-ber 5 so shaped that the rounded portion l@ covers a series of holes l5 in the upper part oi the bellshaped mem ber Il. The holes l5 cooperate with the holes 20 in the base l to allow the heated air within the globe to pass upward througl o.- the space i6 and the annular space 26. rlhe holder 7 is screw threaded on to the member 6 clamping against the dome 5 to hold it in position on the member l. The member 6 is hollow as indicated by the passageway 2l for the purpose of allowing the conductors to be carried to the lamp socket.

l prefer to construct the base member l so that it will act as a redector for throwing downward the light rays, coming to its surface from the lamp bulb. l have `t'ound that this arrangement materially increases theeliiciency of the entire device.

From what has been said, it will be readily perceived that the device herein described is one that can be easily manufactured and quickly assembled and disassembled all for the purposes set forth.

While l have shown the preferred form of one embodiment of my invention, l do not wish to be limited to the exact details shown and described, as it will be apparent that` these details may be varied over quite wide limits.

Having1 thus described my invention, what l claim is:

l. lin a device ot the class described; in combination, a base carrying a lamp socket, a bracket attached to said base, a ring supporting member carried by the. bracket, a rin supported by said member, a globe hel in position on said base by said ring, and means attached to the bracket for supporting the entire device.

2. ln a device ot the class described; yin combination, a base car ing a lamp socket, a bracket attached to said base, a ring supporting member carried by the bracket, a rin supported by said mernber, a globe hel kin position on said base by said ring, a dome fitting over wird' ring supporting Maasai member, a member attached to said bracket and extending upward through the dome and a holder attached to the last mentioned member.

3. ln a device of the class described; in combination, a base carrying a lamp socket, a bracket attached to said base, a ring supporting member carried by the bracket, a ring supported by said member, a globe held in positionl on said base by said ring, a dome fitting over and resting on said ring supporting member, a threaded member attached vto said bracket and extending upward through the dome, a nut on the threaded member to clamp `the ring supporting member tothe bracket and a holder having a threade'dlpart to engage said threaded member to hold said dome in position.

Llifl'n a device of the class described; in combination, a base carrying a lamp socket, a bracket attached to said base, a ring supporting member carried by the bracket, a`

ring supported by said member, said member and ring having means for detachably locking said parts together' in operative po-l sition, a globe held in position on said base by said ring, means associated with said base for permitting the globe to be placed over its vouter periphery and means attached to the, bracket for supporting the entire device.

5. ln a device of the class described; in combination, a base carrying a lamp socket, a bracket attached to said base, said base having an extended lip with diametrically opposite portions removed therefrom, a ring supporting member carried by the member,

a ring supported by said member, a globe having a rim smaller in diameter than the diameter ot the lip on said base, but adapted to pass over the cut-away portions ofsaid lip and to rest on said lip, said ring having a dange adapted topass over the rimA of said globe and hold the same in position on said base lip, a dome resting on said ring supporting member, a member attached to said bracket and extending upward through said dome and a holder attached'to said lastmentioned member.

6. ln a device of the vclass described; in combination, a base having an annular lip, a lamp bulb socket and a bracket attached to said base, a ring supporting member carried by the bracket, a ring carried by said member, said ring having a Harige adapted to cooperate with said lip for clamping the globe oven said bulb, ventilatino holes in said -base and in the upper part oki said ring supporting member, a ome resting on said ring supporting' member having a part extending below the Ventilating holes in said member, and a holder having a stem extending through the domeand attached to said bracket.

7, lu adevice of the class described; in

lll?

forming an air chamber with an annular aircombination, a base carying a lamp socket, bracket attached to said base, a ring supporting member carried by the bracket, a globe. `held in position on said base by said ring, said base and ringsupporting member having Ventilating holes, a dome seated in the ring su porting member having a part extendingv ownward over'the said member opening thereinto, a holder having a stem passing through the dome and attached to said bracket.

8. In a device of the class described; in combination, a base carrying a lamp socket,

a bracket attached to said base, a ring supporting member carried by the bracket, a rin detachably carried by said member, a glo e held in' osition on said base by said ring, a holder aving an extension attached to said bracket, and a dome member held in position onv the ringv supporting member by said holder and stem, said base further acting as a reector.

9. In a device ofthe class described, a base carryin a lamp socket, a bracket attached te sai base on one side, said base being iinished on the other side to act as a re e ctor, a ring supporting member carried by `the` bracket, a. ring supported by said member, a globe held in position on said base by said ring and means attached to the bracket for supporting the entire device.

10. In a device ofy the class described, a base formed with an annular lip to support a globe and having a lamp socket and bracket attached on one side thereof, with its other side finished `to act as a reflector,

a ring member having a portion formed to clamp'said globe over'the lip on the base,

'means for-su porting the ring, and means attached to t e bracket for ,supporting the entire device.

11. In a device ofthe class described, a base formed with an annular lip to support a globe and .having a lamp socket and a bracket attached on one side thereof, with its other side [inishedto act as a reflector, said base having Ventilating holes therein, a ring member having. a portion formed to clamp said globe over the lip on the base, a bellshaped member carried by said bracket for detachably supporting said Iring, said memberv having a series of Ventilating holes in its upper port-ion, a dome member supported on said bell-shaped member having a portion forming an air chamber over said ventilating holes therein, and a holder having a stem passing `through the dome and attached to said bracket for supporting the entire device.

12. In a device of' the class described, a base forsup'porting a lobe, a globe having a flanged o enng sma ler in diameter than the nomina diameter of the base, said base having cut-away portions whereby the globe can be tilted and' passed over the outer periphery of the base, a lamp socket carried by the base, a ring member for clamping the g obe -to the base, means independent of the base for supporting the-ring member, and means for supporting the entire device.

13. y'In a device of the class described, a base for supporting a lobe, a globe having a flanged o ening sma ler in dlameter than vthe nomina diameter of the base, said base having a ange to rest on said lip with .means associated with the lip to permit the globe to be passed over it, a ring for reen the base, a support for said base, a member carried by the support for carrying said ring and a holder for the entire device attached to said base support member.

15. In a device of the class described, a member having one side finished to act as a reflector, a lamp socket mounted on the opposite side of said member but having the lamp opening toward the reflector side, a globe adapted to be supported around its periphery on said member with means associated with the member to ipermit the globe to be fitted over thel said member, a ring for retaining the globe on the member, a support on said member extending upward, va member attached to said lsupport for carrying said ring and a holder for the entire'device attached to said support.

16. In a device of the class described, a member finished on one side to act as a reflector, -a lamp socket and a support member attached to said reflector member, a globe supported around theperiphery of the member, a rin for retaining the globe in position on the re ector member, a member carried by said support for carrying said ring, said 'taining the globe on the lip, a lamp socket ring and its support member having as- A sociated means for quickly disengaging the ring from its `operative position and a holder for the entire device attached to saidv support.

17. In a unit light, the combination with a member carrying a lamp socket and acting as a reflector, of a globe peripherally supported on said member, a ring member for holding the globe in place on the reflector member, a holder for hanging the unit with'means for attaching the holder to the reflector member, and a support member for the ring member held in place by said attaching means.

18. In a unit light, the combination With a member carrying a lamp socket and acting as a reflector, of a. lobe peripherally supported on said member, a rin-g member for holding the globe in place on the reflector member, a holder for hanging the unit with means for attachingr the holder to the re- Hector member including a bracket fastened to the reliector member and a threaded mem` ber between the holder and bracket, a support member for the ring member carried I on said bracket, and a dome member resting on said support ymember and enclosing said threaded member.

19. In a unit light including a base carrying a lamp socket on one side and a lamp on the other, a globe for enclosing the lamp supported on said base, a ring for holding the .globe in position, a bracket on the base, a

member carried by the bracket for supporting the ring member, a holder for the unit attached to said bracket and means for Ventilating the unit; comprising holes in the base, holes in the ring supporting member, and a dome member` resting on the ring support member and having a part extending over the holes therein and having an air chamber having an annular outlet around the ring supporting member.

20. In a device of the class described, a base carrying a lamp socket, a support bracket attached to the base, a globe having a rim fitting directl around and outside the outer edge of sai base, and a ring having supporting means on the bracket for engaging the outer part of said globe rim to hold it in place on the rim of said base.

ln testimony whereof, I affix my signature.

HENRY A. FRAMBURG.

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