US2638533A

US2638533A - Stand lamp having an illuminated base

Info

Publication number: US2638533A
Application number: US169929A
Authority: US
Inventors: James G Zobian
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-06-23
Filing date: 1950-06-23
Publication date: 1953-05-12
Anticipated expiration: 1970-05-12

Description

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.STAND LAMP HAVING AN ILLUMINATED BASE Filed June 25, 1950 IMMES 6, Zoe/QN AWO/@MEV thereof and in which simple and shadows upon the scenes base lamp. It is desirable to permit the pic- Patented May 12, 1953 oi'fFicE ffy STAND LAMP HAVBIgrEAN ILLUMINATED James G. Zobian, Roslyn, NQ Y.

Application June 23, 1950, Serial No. 169,929

s Claims. 01. 24o-s1) My invention relates to illuminated base lamps,

is illuminated interiorly a main orA upper lamp is supported by the illuminated base in a novel, safe manner to enable its ready removal for the purpose of changing the incanlamp in which the base 'descant lamp in the base or for the purpose of replacing illuminated pictorial representations which are carried by the base.

Illuminated base lamps are known to the art andcomprise usually a base formedwith translucent'or transparent sides which support the upper portion of the lamp which carries a main incandescent lamp or lamps and a lamp shade. The arrangement is controlled by a three-way switch whereby either the upper or lower lamp may be lighted, both lamps may be lighted, or both lamps may be de-energized. If the transparent or translucent sides of the base are in the form .of pictorial representations, such as .photographic-slides either in black and white or in color, orrother scenes shown on translucent parchment, paper or ground glass, .or the like,

that the conductors delamp do not throw illuminated by the care must be taken livering energy to the upper torial representations carried by the base to be changed. These considerations make it difficult to give ready access to the base when the incandescent lamp positioned therein becomes inoperative by the burning out or breaking of its lament, or otherwise. In yorder to give a pleasing design it is frequently desirable to mount the base on a small pedestal, and this .construction renders access to the interior of vthe base even more diflicult.- The use of doors or access openings from the bottom of the lamp, furthermore, interfere with the mounting of the socket for the base lamp which should be positionedrcentrally of the'` bottom of the base in order toilluminate the sides of the base more evenly. t

One object of my inven ion is to provide an illuminated base lamp in which the upper or 4main lamp is secured Ito the base in a readily removable manner in order to give access to vthe lamp in the base and to permit the ready A,removal andreplacement of transparent or translucent pictorial representations mounted on the sides of the base.l `Another object of my invention is to pro- Avdisplayed by the lamp base.

vide readily releasable means for securing' the-z .;A

upper portion of an'illuminated baselamp' 'to the base in such amanner that the securing means acts as the contact making means for the electrical path furnishing energy for the upper lamp.

Another object of my inventionr is to provide an illuminated base lamp having a removable upper portion carrying an upper lamp in which the upper lamp becomes immediately vde-enerf gized when removed from the base and in which the danger of short circuits or shocks to a person removing or replacing the incandescent lamp in the illuminated base socket is minimized.

Other and further objects of my invention `will appear from the following description.

In the accompanying drawings which form part of the instant specification and which are to Abe read in conjunction therewith and in which like reference numerals are used to indicate like parts in the various views:

Figure 1 is a perspective view of a lamp showing one embodiment of my invention.

Figure 2 is a sectional elevation of the lamp shown in Figure 1 drawn on an enlarged scale.

Figure 3 is a top plan view of the base of the lamp with the upper assembly removed.

In general, my invention contemplates the provision of a base for a lamp having the sides thereof formed with picture frames. The lamp may have any desired cross-sectional shape, such as square, rectangular, hexagonal, octagonal. or the like. Each of the picture frames is provided with slots adapted to hold a pair of glass or transparent plastic plates, the outer of which may be clear and the inner of which may be frosted or translucent. A transparent or translucent pictorial representation such as a positive photographic print on film or upon glass in black and white or in colors, or a lithograph, or the like, maybe mounted between the glass plates and framed by the sides of the base of the lamp. A socket is mounted interiorly of the base of the lamp adapted to hold an incandescent -lamp of any appropriate size. The base is supported in anyv suitable manner, as for example. by a pedestal into which passes a cable lcarrying a pair of conductors and a three-way switch. The conductors are led upwardly of the base adjacent the corners of the base in a position clear of the pictorial representations framed by the base so as not to cast shadows or otherwise interfere with a clear view of the scenes The conductors terminate in a pair of metallic re-entrant sockets positioned on opposite sides of the center of ther to seat upon the base with the spring lugs in contact with the socket members, securing the top to the base. A pair of conductors lead from the spring pressed lugs upwardly to the socket in which the upper lamp is mounted. Any suitable shade supporting means may be carried by the upper member for supporting a shade around the upper lamp. The three-way switch, such as is known to the art, Yis adapted to complet-e the circuit through both lamps in parallel, through the upper lamp alone, through the lower lamp alone, and to break the circuit to both lamps. If desired, separate switches may be employed for the upper and lower lamps without departl ing from the invention. The base may be made of any suitable material, such as metal, wood or plastic.

More particularly, referring now to the drawings, a, pedestal I0, which may be foi-ined of plastic or wood or the like, lsupports a base member 12. al threaded metallic sleeve vlll v'clamps the base lf2 to the `medestal I0 by means of a pair of nuts 45 and 18 threaded exteriorly fof the sleeve l. A socket 2o for the base is supported by 'an insulating sleeve .22 carried by the upper -end lof the metallic sleeve M. The socket P263 is adapted to :hold ran incandescent lamp 2l which illuminates the base. The sides of the base are .made in the form of picture frames 26 yadapted Eto hold v'outer transparent .plates 2t which may be lmade :of glass `or transparent plastic, inner trans'- lucent plates Si! of glassfor plastic, and transparf'entfor translucent .prints vor photographs 32 which are .interposed between the vglass or ,plastic plates. The comers of the base are formed with verti- 'caily extending slots 3l into which the plates slide, as can be seen Eby .reference to Figure 3. With the top removed, as V:shown in .Figure 3 the plates can be readily .slid into lor fout of the slots when it 'desired 'to 'change the pictorial representations which are displayed, and `ready ac'cess is also mad to 'the 'base vinearualescent :lamp 2'4. vertically extending :ducts 3S 'are formed Lin the :base @structure at `diagonally opposite corners. These ducts communicate with horizontal- .1y disposed 'passageway-s 38 Vformed 'adjacent fthe top of the base, and with lower transverse pas- :sageways adjacent the bottom of 'the base. .A Icable f42 containing a '.pair of wires M fand 'd'5 is 1led Sinto the pedestal :lo and `is adapted to .be 'fitted `with .a plug y"adapted to .be inserted in a wall socket, as is known to 'the art. .A 'conductor n is connected to conductor "4'4 and :is fled upwardly through :the yduct 3B and cross duct 38 and electrically connected to a metal member 48 having .a 4re entrant portion. The socket 'member 'e8 is secured centrally lof one .side of the upper .por-tion of the fbase internally thereof. The conductor y'lili is connected to a three-#way -switch lEil controlled by switch operating .member 152. A conductor 54 leads from the :three-'way switch to one terminal of the socket zo. n conductor v5t is connected between conductor 44 and the 'other termi-nal of the so'c'ket 120. A conductor 58 lends upwardly 'through 'one 'vertical corner duct '3S to a second metallic socket member S positioned Vdirectly opposite the socket member 48. An 11pper mem-ber 'ii-2 'is Ladapted 'to cover the base. It carries ja pair of spring pressed plungers 64 and "te vadapted to `coac't `with the vsocket members 48 and tl). The arrangement 'is .such 'that when the member 62 seats -upon thebase, the spring' pressed plungers 'Slt 'and Bt will register with -the 'sockets B8 and "6U, holding 'the cover r'riemloer 62 upon the base 'and making electrical contact 4 respectively with the conductors 40 and 5B. An upper lamp socket 68 is supported upon an externally threaded sleeve 'l0 which is secured to the member 62 by means of upper nut I2 and lower nut T4. The circuit to the socket B8 is completed by conductor 'I6 which is connected to the spring pressed plunger 64 and by conductor 'I8 which is connected to the spring pressed 'plunger 6E. A shade supporting ybracket 8o is y"carried by the sleeve lil and is `adapted to support a lamp shade 82 in any manner known to the art. An incandescent lamp 34 is mounted in the vsocket 68. The bottom of the pedestal l0 is closed by a plate 8e held in place by screws 88.

In use, the upper member 62 is removed by lifting straight upwardly. The spring pressed plungers 64 and 66 will be cammed inwardly against the

curved socket plates

48 and 60, allowing the ready removal of the upper member 62 and with it the upper lamp 84 and shade 82. The bottom LTsurface '93) of the upper member is flat so that the upper member may `be placed on a 'table or other surta-ce in a convenient manner. The lamp .shade 4need not be removed or vdisturbed. The removal of the upper 'member im'- metliately disconnects the upper .assembly .from the source of power so it is unlikely, should the switch operating member 52 zbe in fa position o'ner'gisins the :socket members -ili and v M, for one 'removing the upper member to receive a shock. This is due to the fact that the :socket members :i8 and 60 are on :opposite sides of 'the ba-'se fat Aconsiderable distance `from geach other. The assembly of plates and 'pictorial representations A13, 132 and 3l) maybe removed :as a unit from the vertical slots .3H either .for vcleaning .of Ythe glass surfaces or the replacement or "change of 'the'piotorial representations 32. While the top :assembly is lon, too, 'the lam-'p ir 'may be infserted in the lbase 'socket with 'e'a'se. The top assembly is replaced .and the registration of the spring pressed plungers with the sockets will complete the circuit to the upper :incandescent lamp 84. .Assuming that the switch is in lthe voff position, both 'lamps are deenergized. When the switch is .nrst turned it will vcomplete contact be'- t'we'en czonductor,fle and .itsconnectingfconductors 4B and 56 :to both conductors 54 and '58, thus energizing `.both upper .and lower lamps. The next 4posit-ion of the switch will fdisconnect the conductor 54 vfrom the circuit, thus extinguish .ine the :lower lamp Ztl while leaving the upper lamp 8'4 energized. 'The next position of the yswitch will disconnect conductor 58 and "connect conductor 511, thus K'exi'.inguishing the upper lamp .and illuminating only lthe lbase. .A vfurther ro'- ta'tfion 'of the switch operating' :member 52 "will 'bring the switch back to its .initial position. It Vis understood, ofcourse, that the threee'wayswitch ymay .be Jconnected in any :suitable manner .so that the above operations :may take "place :in any' desired sequence.

It will be seen that I have accomplished 'the bjcts of illy invention. I ht/" pl'OV'i-d illuminated base lamp in which the upper lamp assembly iis secured tothe base in s; 'readily -removable manner in order 'to give access to the incandescent lbase vlamp and to r'permit ready r- 4rnoval and replacement of the pictorial ienne sent-ations mounted on the sides yof the base. I have provided readily releasable means for soc'uring the upper portion of an illuminated base lamp in such manner that the securing means acts as contact 'marine means ff'or the electrica1 conduction Ypath furnishing' energy to the upper lamp. I have provided an illuminated base lamp in which the upper portion immediately becomes de-energized when removed from the base and in which the danger of short circuits or shocks during the operation of replacing the incandescent lamp in the base is minimized, irrespective of Whether the base socket is energized or not.

It will be understood that certain features and subcombinations are of utility and may be employed Without reference to other features and subcombinations. This is contemplated by and is Within the scope of my claims. It is -further obvious that various changes may be made in details Within the scope of my claims Without departing from the spirit of my invention. It is therefore to be understood that my invention is not to be limited to the specic details shown and described.

Having thus described my invention, What I claim is:

1. An illuminated Abase lamp including in combination a support, generally vertical side walls carried by the support to form a chamber open at its upper end, one of said side walls being formed with a window, means for mounting an electric lamp Within the chamber, a second support having a depending portion removably telescoped Within the chamber at its upper end, means for mounting a second electric lamp upon the second support, two electrically conductive securing means each formed of a pair of readily releasable interengageable means, one of the interengageable means of each pair being stationarily mounted on the side walls Within the chamber adjacent its upper end, the other interengageable means of each pair being mounted upon the ldepending portion for coaction with the stationarily mounted interengaging means of each pair, a pair of conductors adapted to be connected to a source of potential for energizing the first electric lamp mounting means, a pair of conductors for energizing the second electric lamp mounting means, said last named conductors terminating in electrical contact with the respective interengageable means carried by the depending portion of the second support, conducting means for connecting said first pair of conductors to respective stationarily interengageable means, the construction being such that when said interengageable means are engaged said second support Will be releasably secured to said chamber and said second pair of conductors will be in electrical communication with respective first conductors.

2. An illuminated base lamp as in claim 1 including in combination biasing means, means for movably mounting one of respective interengageable means for relative movement with respect to the other of the interengageable means,

said biasing means positioned to urge respective` movably mounted interengageable means into engagement with respective coacting interengageable means.

3. An illuminated base lamp as in claim 1 including in combination a. frame, means for mounting said frame within said chamber adjacent said window and a transparency carried by the frame.

- JAMES G. ZOBIAN.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date D. 152,291 Rubin Jan. 4, 1949 1,587,469 Campagna June 1, 1926 1,629,946 Angel May 24, 1927 1,863,607 Sabath June 21, 1932 1,975,833 Doane Oct. 9,v 1934 1,994,886 Doane Mar. 19, 1935 2,167,458 Lieberman July 25, 1939