US1783020A - Electric-fixture device - Google Patents

Description

Nov. ,25, 1930. l.. KozLowsKl ELECTRIC FIXTURE DEVICE Filed June'll, 1929 i `terior thereof.

i oftheclass 'described',l,having certain or all i,2.5 of the advantagesaforesaid, yet vmalringposi convenient tohandle.

lPatented Nov. 25, 1930 `Lnolv Koznowsxr, or

N UNITED-STATES PATENT OFFICE UNIoNcIrv, NEW :rnnsii'in` ASSIGNon oFoivnHALn To 'rHEniisA` ruscnnr'r, or JERSEY CITY, ,NEW rnRsnY 'i nnnctrnrcrrxrnn-n DEVICE Application .filed June 111 Thisfinvention relates in general to means for positioning a lamp-socketwithin an electric4 fixture and it apper'tains `particularly to f a device for anchoring short bodied lamp 5 sockets toiiXtures of shallow depth. l

y The main object of the present invention is to produce `an anchoring device for the pur- "pose in view, enabling the insertion cf a lampsocket in a Wall` fixture, from the eX-` `A ,secondary object is to provide a device of the character referred to With locking means invisible as Well as inaccessible externally of the fixture, so as to prevent unauthor- .",15` ized removal of the socket fromits appointed i anchorage pursuantto the invention. p A third Objectis the provision in a device ofthe kind specifiedof means for nonfrotatably locating thesocketin position on the 20 fixturdwhile permitting proper engagementV the outsidethereof." e i i A fourth object is the production of a device of the last named parts to observedffrom i device of thenature set forth having but a single separateor detached member added thereto, the parts coacting with the aforesaid member beingintegral `with the lamp-socket casingw H r i A special object isfto supply a device of the species alluded. to, capable of being manufacturedl at lovv'cost; not liable to get out of Working order; light but amply strong and durable; Vand particularly time saving and Other objects. and advantages'of the invention vvill be obvious and more'fully' brought i out in the detailed description hereinafter contained;` i H The invention i consists in the Various comiees. serial No. $70,016.` i i binations andfsubcombinations of elements,

arrangements and iinterrelative dispositions Y of'parts, and peculiar features of construc- ,tion pertaining to the improved device, as

herein described and defined in the appended claims. 4 Y' A practical,butmerelyilliistrative rvay of carrying out the invention isshoWn inthe drawing hereto annexed, Whereinp- Figure Itis a sideview partlyin section,

of one embodiment of the invention7 includ- Vingkin parta lamp-socket `and electric fiX- i ture,` i l i w I FigQlIis anunderside plan view of an abutting elementappearing in Fig. I, the

vsame being turned 90O1 around from the positionthereofshovvnin the last named figure,

and

ing in particular alocator or position-finder .incorporated in the structure establishing'the i abutting element: i

Succinctly outlined, the invention forming i Ythesubjectmatter hereof comprises ashortbodied .lamp-socket having the outer or lampreceiving endof its casingprovided With a flange overhangingthe latter eXternally.` Adacent to this `flange the casing'is formed with i screw-threads adapted `for engagement by a i member capable When screwed up," of bearing upontheiinterior side of the Wall commonly i employed as3 a decorative housing for the interior parts ofan electric lfixture. VThisfwall has an openingtherein thruwhich is' inserted thebody of the socket casing insuch a manner as to cause the thereto appertaining flange to overlie the aforesaid opening at the eX- t'erior face of the beforenamed wall" Forining part ofthe flange'referred to, is lja'lug l engageable With'arecess or notch locally en` largingthe lamp-socket receiving opening in the fixture, serving to p, i of the lamp-socket casing.v i i i i f ,i While the accompanying drawing illusevent rotation therein trates the preferred and what is now considered to be the best formof the invention, itWill be understood'thattlie structure 4selected for detailed disclosure and discussion,

" is shown and described hereinby Way of exemple @nlp ein@ that other Serienble` embodiments of this improved device are within the range of practical achievement, whether containing the totality or a less number of the novel features of the invention herein disclosed.

Before commencing a detailed description of the invention as herein illustrated, it will be stated, in order to convey a clearer idea of the scope thereof, that such parts of the improved device as are indicated by letters of the alphabet thruout the present specification and accompanyingdrawing, appertain strictly speaking, to known species of electric lampsockets and fixtures therefor.' On the other hand, those parts of the device which are designated by numerals may be deemed to be features novel in themselves when considered as elements of the new combinations contribut'ed by the invention. It is to be understood that no claim is made to any of the known parts aforesaid as possessed of actual originality, save thru their association with the various elements of the improved device, as

it is by this correlation that there are presented a number of combinations serving to accomplish several new and useful purposes.

Having now particular reference to Fig. I of the annexed drawing, the letter A denotes the side-wall of a cast or stamped shell forming a part of `a familiar type of an electric fixture, in this case a ceiling canopy of rather shallow depth, to be used in instances where headroom is restricted. The means for holding this canopy with its basal portion inverted to the ceiling, indicated by a dot-anddash line B, has not been illustrated, as any- `one of the ordinary iitments therefor, well known in the electric fixture art, may be employed. Circumferentially of theV shell A, intermediate its upper and lower peripheries, the same may be assumed to be formed with any amaropriatenumber of lamp-socket receiving openings, one whereof is indicated at C. In the sides thereof each of these openings is provided with not lessthan one lateral extension orvnotch 11 for a purpose that will be more fully hereinafter pointed out.

At E ris represented one of the standard types of short, straight-bodied lamp-sockets to the inner extremity whereof is removably affixed a cap F thru the agency of-the usual snap-locking arrangement Fl. The leadwires connected to socket E, are designated b y the reference letter G. Instead of the outer or lampreceiving end of said. socket terminating in a cylindrically shaped edge coextensive with the body of the metallic casing-E1 which ,in conformitywith common practice contains or envelops theinterior, conductive and non-conductive parts of the socket, this end of the casing is in the present embodiment of the invention, provided with a flange-like, continuous orvcircumferential abutment 13. The flange in question may be conveniently'formed integral with the mouth or open extremity of said casing El by turning over or flanging its edge at substantially right angles to the body thereof. A portion of the electric bulb or lamp entered into the said socket is depicted by dot-and-dash lines at H. On the side of flange 13 turned away from the lamp or facing inwardly towards the fixture A, there is struck up a lug or protuberance 15 designed to find lodgement in recess 11 'hereinabove referred to, said lug serving to locate the lamp-socket in a predetermined position relative tothe canopy fixture, i. e. prevent its said flange 13 from being rotated relative to the opening C.

Adjacent to the retaining abutment 1?), the body of the casingldl1 is furnished with screw threads 17 for a certain distance inwardly thereof. These threads as well as the snaplocks F1 at the opposite end of the said casing. are so proportioned that they will pass freely thru the aforementioned openingl C. A member 19 preferably in the nature of a sleeved flange, angular in cross-section, and constituting what may be termed a nut or thi rnble because formed internally thereof with threads corresponding to'those on the socket casing, is mounted on the latter as shown; this member 19 being thereby adapted for helical or spiral adjustment on casing E to coact with the interior wall surface of the fixture to apply a stress onto the socket E, sufficient to draw or pull up the same firmly into its assigned position. In order to afford a gripv for a Spanner to tighten or loosen member 19, ears 21 are provided on the upper or free side thereof, which ears are engageable by the implement just before referred to. `'letween the inner side of the fixture A and the apposed outwardly turned face of the flanged portion of said member 15), there may be interposed awasher 22?. composed of libre` rubber or soft metal, capable. at such times as pressure is exerted thcrcagainst by the said member, of yieldably conforming to the curvatures and irregularities occuring in the xtures boundary walls. vWhile not specifically illustrated, it will be comprehended that a similar washer for the same purpose, can be placed intermcdiately of the abutment 13 and the outer wall surface of the ccilin fixture A.

From what has been stated with respect to both of the structure depicted in Figs. l andlll, it can easily be seen. that but a frw minutes of time will be required to place and lock the type of socket represented in these views in its assigned position. The meniber employed to anchor the socket to its seat, is not only out of sight, but tampering therewith from the exterior of the fixture is impossible unless the latter in its entiretyis taken down or ofi1 the wall or ceiling to ywhich it is affixed. Still the erector of such fixtures is able to tell at a glance by looking from the outside thereof, whether the flange locator is in position for proper coaction With its receiving` recess. Notwithstanding that the accompanying drawing illustrates the invention as applied to short-bodiedlainpfsockets, no limitation is intend-ed in this respect, as any other appropriate style of socketscoin- .patble with any given kind of fixture can be use In its broader aspect, the invention is notl limited to the precise features of construction and arrangements ,of parts hereinV shown and,l described, nor to any particular means by which it can be carried intoeffect, as many changes may be inade in the details Without departing from the principles of theinvention and Without sacrificing its chief advan-I tages.

of the United States and claim is l. A device of the charac-ter described, coniprising a fixture formed With an opening in 1 cluding a notch in the side thereof, a inei tallic lamp-socket casing having the lampreceiving endthereof provided with an abut-` ment iange, said casing being formed With external screw=threads adj acent' its said end, the said casing being insertible into said opening from the outside of the fixtureY With the abutment iiangeoverlying th-e fixtuies exterior, an element projecting from said flange on the `side thereof` facing said fixture, said element adapted toeenter said" notch to Vhold `the casing from rotation, and an internally threaded member adapted to engage the threads on the lamp-,socket casing from the inside of the said fixture, said member serving to pull said abutment fiange up against the side of the xture with the casing completely housed therevvithin. i

`2. A device of Vthe character described,

comprising a fixture formed with an opening including a notch, a lamp-socket casing havi said member serving. to hold said abutment fiange against the side of the fixture with the ing thelamp-receiving end thereof furnished with an abutment flange, said casing being `provided with screiv-threads ad3acent its said i end, the said casing being insertible into said opening from the outside of the fixture with the abutment flange overlying the fixtuies terioi', an element proj ecting Vfrom said flange on the side thereof facing said fixture, said element being capable of entering said notch y to keep the casing from turning, an internallyl threaded member adapted to engage `the threads on the lamp-socket casing from the insideof the said fixture, and a Spanner engagement ear extendiiig therefrom in a like direction to the notch-entering element, the

lamp-socket casing entirely hidden theief `Within. i

LEON Koziioiisiri.V

hat l desire to secure by Letters Patent

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