Патент USA US2411189код для вставки
NOV. 19, 1946. Q_ |_ BROWN 2,411,189 READING LAMP Filed May 5, l'1945 Iyyï. 27 w Cgç RLES IN/vsssßeo WN. 4f . "" .Ml OMQTJJu-J. ATToRNEn/â. Patented Nov. 19, `1946 l UNITED » l 2,411,189 STATES » ` PATENT'` OFFICE 2,411,189 READING LAMP Charles Inness Brown, Floral Park, N. Y. ‘ Application May 3, 1945, serial No. 591,709 1 Claim. A l , ‘ 1 , (o1. 24o-_81) , This invention pertains to improvements in Also threaded into the upper portion of the >sock'l et member, is a columnary extension member reading lamps, of lshaded, incandescent lamp construction. ' \ yprojecting upwardly beyond the dome, for sup l A type of reading lamp commonly encountered, porting the lamp shade concentrically` with'the is -that employing an opaque or translucent shade made of parchment or the like, and Which is of cylindrical, truncated or other open-ended dome, the shade being `of'such dimensions as to completely surround the dome in spaced relation configuration. thereto, thereby normally to hide the same from View, The shade may be made of any suitable - In `reading lamps of this type, as heretofore constructed, a great deal of the illumination from the incandescent bulbs> is directed upward material, such as parchment, cloth, etc., and may ly through the Vupper aperture of the shade onto the ceiling`,'and hence is effectively lost for read other vitreous material, and is ordinarily-_ made translucent. With this construction,"the rela Aing purposes. f be opaque or translucent as desired. tively small portion of illumination transmitted " l upwardly through the translucent 'dome is di I_n accordance withro’ne aspect‘of my inven rected upwardly ontothe ceiling through» the up'-` tion, I propose to greatly increase the reading il- , lumination, for a given Wattage of the incandes per aperture in the shade, thereby to provide a relatively soft amount of background illumina cent bulbs, by providing within‘the shade, a sup plemental ` light-reflecting, The dome on the other hand is preferably made of glass or and, preferably, translucent dome, so mounted as to span the in candescent bulbs, and thereby ‘reflect downward 20 tion in the‘room‘; while thermajor portion of the illumination is reflected downwardly bythe dome into the reading area, ` ‘ ` ly ’onto the reading area, a part‘or all` of the il-` As above stated,- the lamp is preferably pro--` lumination heretofore directed through the top vided with a translucent, lightfdiffusing screen, of the shade onto the ceiling, This dome Yis of for providing the “daylight” illumination ‘effect smaller diameter or cross-sectional area than 25 over the reading area, this screen’ comprising or dinarily a centrally apertured‘di‘sc of etched glassl that of the lamp shade, and is arranged within or the like and of a light blue-green color. This and wholly surrounded by the shade, so that its presence is not observable when viewing the screen is assembled on a metal supporting shelf lamp from normal positions, i. e., in a horizon carried by the lamp base below the socket mem tal or substantial horizontal direction. This 30 ber, whereby it intercepts and diffuses the »down dome is preferably made of glass or other vitre wardly directed illumination, while imparting the ous material. “daylight” illumination effect thereto by Virtue of its color-absorption properties. As an additional feature of the invention, I In the drawing: , provide a light-diffusing screen, mounted below the incandescent lamp bulbs in the path of the Fig. l is a view in elevation and partly in axial downwardly directed illumination, and of such cross~section, through the shade, dome and dimensions as to intercept and diffuse all or sub screen assembly of a preferred reading lamp con stantially all thereof. This diffusing screen is struction in accordance with the invention ;; preferably so colored, for example, a light blue Fig. 2 is a sectional detail taken substantially green, as to provide a so-called “daylight” illu 40 at 2-2 of Fig. l, showing the lamp socket assem mination of the reading surface. bly with associated supporting means for the Thus, in essence, the preferred reading lamp dome, shade and diffusing screen; while construction of my invention comprises an up Fig. 3 is a sectional detail taken substantially standing support or base, usually of slender, col at 3_3 of Fig. 2, to illustrate the manner of re movably mounting the diiîusing screen on the umnar conñguration, carrying at its upper end a socket member for reception of one or more in lamp-supporting base or standard. candescent lamp bulbs. The reñecting dome, Referring to the drawing, the assembly com yabove referred to, which is preferably translu prises` an upstanding lamp base or standard I, of cent, is mounted upon the upper portions of the ‘preferably columnar configuration as shown. As socket member, coaxially with the base, this 50 shown in Fig. 2, the base I consists of inner and outer metal sleeves 2, 3, the inner sleeve provid dome being of such dimensions and arcuate con tour as to span the incandescent lamp or lamps ing a tubular passageway for the lead-in con ductors 4 from the base to the lamp socket.. The carried by the socket member, to reflect down wardly over a desired reading area, all `or a major outer sleeve 3 terminates at its upper end in a portion of the illumination emitted therefrom. 55 flanged collar 5, while the inner sleeve 2 projects 2,411,189 4 3 upwardly beyond the collar 5 to provide a spin dle. Assembled over this spindle in a sliding nt and resting on the collar 5, is a centrally aper tured, disc-like, metal supporting member E, pro vided with a peripherally extending, upstanding shoulder 'I and a flanged portion 9 extending ra dially therefrom. The above-mentioned central ly apertured, light-diffusing screen 9 is assembled on this supporting member B, in such manner that thedisc rests on the outer ñanged portion 8 of supporting member 6, while the upstanding shoulder 'I thereof serves to center the diffusing screen. For lockingly maintaining the diiïusing screen in the assembled relation shown in Fig. A2, the metal supporting disc 6 has rotatably riveted thereto, >as at Ill, a pair of lugs II of metal or equivalent, these lugs being rotatable inwardly about the pivotal points provided by the rivets I 0 so as to lie wholly within the shoulder 'I of sup port 6, whereby the diffusing screen 9 may be . assembled in the relation shown, the lugs I I being thereafter rotated outwardly, to lockingly en breakage of the dome, a washer 2|, or rubber, synthetic resin, or the like, is interposed between the shoulder I8 and the dome 20. Likewise, a sec ond and similar washer 22 is assembled on the Ul spindle I9 above the dome 20, and a metal ex tension member 23, having at its lower end, an in ternally threaded recess, is screwed onto the spin dle I9, as shown. - rIv‘he extension member 213 terminates at its up per end in a shoulder _24' and a‘threaded spindle 25 of smaller diameteryonto which is'assembled a lamp shade 26 of parchment or the like, the ` shade being provided for this purpose with radial ly extending, wire supporting members 21, weld ed or otherwise integrally joined to sleeve member 28, which is centrally to ñt slidably over the spindle 25, 4the ing held in place by a knob 29 having a central apertured shade be a .thread ed' recess threading onto the spindle 25. As stated the shade 26 may be opaque or translucent as desired, and is ordinarily of cylindricaL truncated or other open ended configuration. Y Y What is claimed is: 2,. An incandescent lamp socket member I3 car A reading lamp, comprising:V an .upstanding support, comprising outer and inner sleeve mem bers,- said outer sleeve member terminating in a collar and said inner sleeve member projecting rying one or more lamp sockets, such as I 4, is beyond the same in the form of a spindle, a cen provided with alower supporting collar portion trally apertured supporting disc ñtting over said I5 adapted »to fit slidably over the spindle 2, and torest upon lthe coll-ar portion I2 of the support spindle and resting on said collar, a centrally` gage the diffusing screen 9. The metal supporting disc 6 is provided with a centralv collar portion I2 surrounding the spindle apertured light-diffusing screen carried by said A screw IB threaded into the collar supporting disc, said supporting disc having I5 land írictionally engaging the inner sleeve 2, serves vto secure- the> lamp socket member i3 and the metalV supporting disc 6 in assembled relation, as shown in Fig. 2. The lamp sockets I4 carry means for loCkingly engaging said light-diffusing ing _disc 6. incandescent lamp bulbs, such as I‘I. . The socket member I3 terminates at its upper end Vin a shoulder I8 and a threaded spindle I9 projecting upwardly therefrom. The above-men -tioned light-reflecting and preferably translu screen„a socket member for incandescent lampsV ‘ mounted on said spindle, a centrally apertured light-reiiecting dome carried by an upstanding spindle of said socket member, said dome span ning the socket member and incandescent Vlamp means carried thereby for reñecting light .down 40 wardly through said diffusing screen, an exten-4 sion member -threaded onto said socket spindle, cent dome 20 of glass or the like, is provided with and a lamp shade carried by said extension mem acentral aperture> for assembling the dome con ber, said lamp shade being spaced from and sur fcentrically over the spindle I9, the dome resting rounding said dome. y upon and being supported by the shoulder por 45 tion` I8 of the socket member I3. For preventing , CHARLES INNEss BROWN.