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Publication numberUS1996713 A
Publication typeGrant
Publication dateApr 2, 1935
Filing dateMay 25, 1933
Priority dateMay 25, 1933
Publication numberUS 1996713 A, US 1996713A, US-A-1996713, US1996713 A, US1996713A
InventorsChauncey E Waltman
Original AssigneeSandel Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1996713 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

A ril 2, 1935.

c. E. WALTMAN I LAMP Filed May 25, 1933 C/ fa'rzrzgey 5%JZW 6 M 2 V YF w M LINL Patented Apr. 2, 1935 "uNirso I STATES Lasagna H 'tGhau'nceyE. Waltman, Chicago; assignorj fto w Sandal Manufacturing 00,, Chicagmilh, "cornotation of Illinois 'Apnlication May 25, 1$l33, $eria,l No Baassaf I 1.01am.- (credo-ran] Q e p n sun .i-urther o'bjectof this invention is to ma- This invention relates to improvements in floor lamps and more particularly to the type of floor lamp known in the trade as a bridge lamp.

In lamps of the above character heretofore constructed, the switch employed for turning on and .off the'lamp is disposed within the socket and is actuated by means of a pull chain extending 7 through said socket. The sockets generally provided for lamps iof'this character have some means associated therewith for the attachment of a suitable shade within whichthe light bulb is enclosed.

The provision of a circuit closingdevice in the socket, the actuation of which is through'the pull chain, makes it somewhat inconvenient in attaching the shade, as well as havingthe effect of somewhat marring the appearancefof' theshade by reason of the pull chain extending over the same. Another disadvantage in the provision of a pull chain at that point is that the actuation of the same is somewhat interfered with by reason will the shade interfere with the actuation of said, device or with the attractive appearance of the lamp.

Another object of this invention is to provide in a lamp of the character described, a circuit closing device which will be disposed in the arm of the lamp removed'from the socket within which the light bulb is mounted.

A further object of this invention is' to provide in a lamp of the character described, a switch for controlling the passage of electricity to the light bulb, said switch being disposed at some point along the arm of the lamp removed from the socket and in position to form substantially an extension or a part of said arm.

A still further object of this invention is to provide in a lamp of the character described, having a transverse arm, upon one end of which is provided a lamp socket with means surrounding the same for receiving in threaded relation a lamp shade, of an improved switch for controlling the passage of electricity to said lamp, said switch being disposed along the arm and arranged so as to present the appearance of forming a part of said arm. 1

wide in abridge lamp'of the character described;

having-a transverse arm upon one end "of whichjis provided a lamp socket and shade, of a switch tor controlling the passage of electricity-through marred by the presence oipull chains and the like.

T A still further object-bf invention is to pro- I ,trolling the passage of electricity to the lamp,

said arrangement" making for amore simplified and economical construction and being otherwise 5 said lamnflsaid switch being so arranged-asto iorm a partof the arm or the lamp basewhereby the general} appearance of the lamp will "not be efiicient-ior carryin'g out the purposes for which it is designed;

f I With the foregoing' and other objects in view, which will appear :as; the description proceeds,

the inventionjconsistsfin *certain novel features of construction; arrangement and combination of parts; herein'aiterfmore iully described and illustrated in the" accompanying *clr'awing and V 4 particularly-pointed out "the ap ended claim, "it being understood that 'various 'chan'ges' in the form, proport-ion, 's'ize'and minor details of the "structure may be madef-without departing fromv the spirit or sacrificing any oith'e advantages ofthe invention;

For thepur-pos'e of facilitating an under standing of my invention, I have illustratedin the accompanying drawing a preferred embodiment .thereo'fjfrom an inspection of which when considered in connection with the. following description,myinvention, 'its'mode of construction, assembly-"and operation and many of its ,7

'- advantages, should be readily --understood and appreciated,

'Referring -to'the drawing, in which the same characters of reference are employed to indicate corresponding or similar parts through the several figures of the drawing:

Figure 1 is a view in' 'side elevationof a lamp of the bridge type embodying the principles of my invention; M

I Figure 2 is a transverse sectional view through the arm of the lamp;

Figure 3 is a sectional'view of Figure 2; and

taken on line s a-'3 '7 Figure'4 is a wiring diagram for the lamp.

Stated generally, the invention comprehends' the idea of so mounting the. switch by means of which the passage of electricity to the lamp is controlled, as to put it in position where it will not interfere with the disposition of the shade and where it will form and be a part of the transverse arm part of the lamp stand, with I the result that the attractive appearanceoi the V lamp will be greatly enhanced. V V 7 Referring to the drawing more specificallyby characters of reference, the numeral- I designates a lamp base upon which is mounted the vertical stem 2 adjacent the upper, end of which provid'ed thetransver'se" arm 3,, said arm extending from the stem 2 soras t'o'be in position to throw a light onto a table, such as for example, a bridge table or the like? The stem' 2 isxof a hollow construction and is adapted to receive therethr'ou'g'h the current supply conductors 4 which are threaded through saidfhollow stem, on the forward ,endof the arm 3 is provideda suitable lamp socket 5 within which is received the light have provided anovel and improved switch mechanism for controlling the passage of electricity to the light bulb, said switch being disposed on a portionof the arm of the lamp so as to present the appearance of being a part of said arm. It will also be noted that the elimination of the pull chain at the socket not only enhances the-attractiveness of the lamp, but also facilitates the actuation of the switch mechanism as well as facilitating the attachment ,of the shade to the lamp. Also the use of a keyless socket makes for a more economical construction as well as enhancing the attractive appearance of the socket.

i It will benoted thatalthough in the embodiment illustratedthe switchmechanism is dis- ;posedj adjacent one end of the transverse arm 3,

surround said lightlbulb.'- The socket 5 is ofthe --keyless type,'the control of the passage of electricity-being through my improved switch mecha- =i Which will now'be more spe ifi n scribed. lv r i i The transversearm 3 isalso of the hollow type and has threaded therethrough the-current supply oonductors or wires 1 and 8; and the branch wire 9. The improved circuitclosing. means illustrated in the drawing comprises a' member In, one end of which is threaded as shown at I l to the free end of the arm A3,and the otherend l of said hollow member havingvthreaded therein a suitable rotatable switchgenerally designated I by the reference character .12.

As shown in the drawing, my improved switch comprises a body' portion I 3 of suitable-insulating material, through the center of which is dist posed fa. rotatable steml l, .the,outer end of .which hasrigidly secured thereto an actuating knob l5; byxmeans of which said stem 14 may be rotated, Te theaopposite end of the stem 14 is secured a .conductingplate' l6 by means of a screw I! which, extends through-saidplate' and a is threaded into theireejend of said stem; M. The iwiresl-1- andLS -are connected by means of platesY ZD and; Z LrespectiVely the opposite ends 'of which plates are, rigidly-isecured by means of the screws'22 to =the'body portion ;l3 ,of the V the screws I8 and I I9 respectively, to contact bulb-. 30 and to which may also be attached a' suitable lamp shade B in position to qmpletely juncture. V

it is to be understood that I'do not limit myself tothatposition as my improved switch mechanism may be disposed at any point along said arm 3 or at; any point alongthe hollow stem 2. The

disposition of the switchmechanism will at all times be at such a point where it will work in liarmony with the general design of the entire lamp. Thus. the switchmechanism may form' the extreme upper tip of the hollow stem 2, or thesame may bedisposed at the juncture between the stem and the arm? was to present the appearance of the. desired. ornamentation at that point of It is; believed thatimy invention, its modeof construction and assembly and operation, and manyof its advantages should be readily understoodfrom the foregoing without further description, and it should also be manifest that while 7 a lampsocket disposed'at one endthereof, elecswitch mechanism. The plate member I6 is adapted-tospan-the distance between the'plate members- Y20 and 2 and wheni n thatposition will complete the circuit to thela m p, and when in aiposition at right angles Itliereto will break .the circuit to said lamp. The plate member i6 is sufficiently flexible as to remain by reason of its resiliency inyahypoSition that it may be movedto by the actuation of the knobilS. V

;tricity conducting wires extending through said stem and arm for supplying-electric energy to a lamp disposed within 7 said socket, a member threaded-0n the opposite end of said transverse arm and having a rotatable switch disposed therein for controlling the circuit to said lamp socket,

said switch including a make and break member mounted for rotatable movement within a 'plug,gsaid plug being threaded within said last 3 I From the above it; will be apparentthat mentioned member to be fixedly secured thereto.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6863422 *Feb 25, 2003Mar 8, 2005Steris Inc.Ergonomic controls in a surgical lighting system
US20030210559 *Feb 25, 2003Nov 13, 2003Steris Inc.Ergonomic controls in a surgical lighting system
US20050157496 *Jan 20, 2004Jul 21, 2005Chun-I ChenDesk lamp with rotary switch
U.S. Classification362/395
International ClassificationF21V23/04, F21S6/00
Cooperative ClassificationF21S6/006, F21V23/04
European ClassificationF21V23/04, F21S6/00S2