US1572532A - Electric-lamp-supporting structure - Google Patents

Description

Feb. 9 1926. 1,572,532

M HRSKOVITZ ELECTRIC LAMP SUPPORTING STRUCTURE m I l, l

Filed Jan.

Feb. 9 1926.

l wrigsxovrrz" ELECTRIC LAMP SUPPORTING STRUCTURE 2 Sheets-Sheet 2 Filed Jan. 5 1924 Patented Feb. 9, 1926.

`UNITED STATES u 1,572,532 Aran-r otros.Y

MAX HERSKOVITZ, OF CHICAGO,` ILLNOIS; "WILLAM HERSKOVITZ AND CHARLES WEINFELD EXECUTORS F SAID MAX HEBSKOVTZ, DECEASED.

ELECTBIC-LAMP-SUPPORTING STRUCTURE.

Application filed January 5, 1924. Serial No. 684,648.

To all 'whom t may concern:

Be it known that I, MAX Hnnsiiovirz, a citizen ofthe United States, residing at 663 1V, YVashington Blvd., Chicago, in the county ot Cook and Stateot Illinois, have invented a new and usetul Improvement in Electric-Lamp-Supporting Structures, ot which the following is ay specilication.

My invention relates, generally stated, to a structure comprising a supporting membeil which may be supported either' from a standard, as in the case of a lamp,` or by an element depending from a ceiling or extending laterally from an upwardly extending support, and an electric lamp receiving socket, preferably provided of a plural number, mounted on said support-ing member, and as to one phase of my invention, rotatably supported thereon.

VMy primary object, generally stated, is to provide a structure of the general character above referred, to, which shall bel simple of construction and economical to manutacture, requiring a relatively small amount of labor in the assembling ot the parts and the making of the desired electrical connections. Another object isto provide a construction whereby the sockets may be wired to the main wires, betere assembling the .sockets with their support. Another object relates to a structure in which the socket is rotatablyvmounted on the supporting member, and in this connection it is one of myvobjects to provide such an arrangement of parts that the socket may be adjusted into different angular positions, and oblique to a vertical plane. Another object is to providea structure wherein the socket may be adjusted from a position in which it extends oblique to a vertical plane into a substantially horizontal position in one of its posi tions of adjustment. Another, specific object, whicli applies to the structure, whether or not it possesses the feature of being rotate able, is to proved a novel, simple and inexpensive construction ot' attaching portion tor attaching the socket to the supporting member; and other specific objects, as will be understood from the following description.

Referring to the accompanying drawings Figure 1 is a View, in elevation, with a part of the supporting member bioken away,

of one of the forms in which my invention may be embodied. Fig. 2 is a faceview of one of the sections of the supporting member of the structure, this view showing the interior ot' this section. Fig. 3 is a similar view oit the other section of the supporting member.L 'Fig 4 is a section taken thru the assembled sections of the supporting me1nber, with the sockets omitted, this section being taken at the line 4 on Fig. 1 and viewed in the direction of the arrow. Fig. 5 is a view in longitudinal section thru one'of the similar electric-lamp-sockets. Fig. 6 is a broken section taken at the line 6 on Fig. 1 and viewed in the direction of the arrow,

this view showing only the section ot the supported member represented in Fig. 2.v

Fig. 7 is a View like Fig. 6 of the other section ot the supporting member and illustrated in Fig. 3. Fig.'8 is a view like Fig. 1, of another form in which the invention may be embodied. Fig. 9 is a view like Fig.4 1 ot stillanother forni in which the invention may be embodied; and Fig. 10, a section taken at the line 10 on Fig. 9 and viewed in the direction ot the arrow.

i Referring yto the construction shown in Figures 1 to 7 inclusive, the structurecomprises a hollow supporting member v11 adapted, in the particular form shown, to be supported on the upper end of an upright (not shown) as in the case of the usual table, 1or door, lamp, and thru which upright the electric-current-conducting wires would ex tend into the supporting member, or dependingly supported from a wall bracket or a ceiling fixture, and in the case ot its use as a part of a table, or floor, lamp, supporting a shade to extend above the electric lamps. The member 11, which may `be Aformed from cast metal, is of sectional form, one of these sections being represented at 12 and the other at 13. The section 12 as shown, and by preference, tho such is not essential to the carrying out of my invention, forms the body portion of the inember l1 and the part- 13 is in the nature cfa cap plate which .tits tiatwise against the section 12 and with the latter completes the enclosure provided by the member 11, these sections, in assembled rela tion, presenting the compartment 14. The section 12 isy shown as provided with hollow bosses 15 and 16 at its uppei' and lower ends, respectively, which open at their inner ends into the space 111, the boss etv llO

15 being shown as internally screw-threaded, as represented at 17, into which threaded portion a pipe section 18 is screwed.` Thispipe section may form a connection for a depending element by which tosupport the supporting member 11 or it may serve as a positioning member for a shade (not shown) seated upon the upper end of the boss l5-and held in position thereon by a nut (not shown) ,screwing upon the upper end of the part 18. In they construction shown, two electriclamp-receiving sockets are illustrated, these sockets represented at 19 and each provided with a portion 20 at which it is supported, and in the particular construction shown rotatably confined, on the supporting member 11. The portions 2O shown as each pre* senting annular' flanges 21 and 22 spaced;

apart lengthwise of the portion 20,y are angularly disposed relative tothe median line of the socket, the cap 23 of which is pro,- vided with the portion 24: at itsupper end to form an attachmentfor the portion 20, the latter being held to the portion 24 by means of.' the flange 22 and a flange 25 disposed'at opposite sides of an inwardly projecting flange 26 on the portion 24.

It is designed that the electric sockets 19' be assembled with the sections 12. and 13y and be heldin position by the asesembly ot the parts 12 and 13, the means which hold" the sections 12 and 13 together, and which.

may be the screw representedat 27, being the only securing'means employed. particular construction now .being described the wide walls of the member 11 `andwhich are ormed'on the section 12 and at which walls the sockets 19 are to be supported, are upwardly diverging, 'and contain recesses l1, the inner walls of which are curved as shown at 28, the portions 2O of the sockets 19 in the operation of assemblingthe parts, being introduced, at the portions thereof between the flanges 21 and 22 into the recesses 11 and engaging at the surfaces 30 with the reduced sections of the portions 20 these various parts being preferably so constructed and arranged that by drawing the sections 12 andv 13 together, a clamping action will be exerted against the portions 20, wherebyany desired degree of friction may beexerted'on the iportions 20, against turning of the latter.

It will be understood from the foregoing that the assembly of the various parts may be very expeditiously accomplished'and at relatively small cost and this regardless of whether or not the sockets are rotatively mounted, it being noted in this connection that the electrical connections between the wires leading into the supporting member 11 andthe wires which would lead from the socket mechanism 1(not shown) which in practice would be located within the socketycover 13 is removed.

In thev shells 19, may be readily effected when the i Furthermore it is not necessary to provide any separate fastening devices, as for example, screws and the like, for connecting socktes 19 with the member 11, the fastening means, the screw v27 shownin tl1e1rh'afwings, for drawing the sections 12 and 13 together and holding them in assembledposition, 'being the only fastening means required.

The provision 'of the portions 20 with their axes of rotation disposed-relative to a vertical plane, and to the med-ian lines of the sockets carrying them, as shown., is for the purpose of causing the sockets to extendinto different angular planes upon rotatively adliusting them upon the member 11, and into a substantially horizontal plane when rotated upwardly thru approximately 180 from the position shown in Fig. 1, in clockwise direction in Fig. G, it being desired in a `structure of this character to provide for such positioning of the sockets.

The socket portions may each be provided with a 'stop as shown at 2Oa cooperating with the supportingmember 11,v and limiting rotation of the sockets.

The structure shown in Fig 8 is of the same general construction as that shown in Figs 1 to 7 inclusive, except that the supporting member, represen-ted at 31 and corresponding with'the member 11 intsead of being divided along a vertical plane are divided along a horizontal'plane, the two `sections of this member being represented'at 32 and 33; the inclination of its upwardly divergingside surfaces and represented at 34, is slightly different from the 'correspondingsurfaces ofthe other construction; the journaling portions of thesoekets, and represented at 35, extend at a slightly different angle relative to the medianlines of the socketscarrying them, than in the case of the other construction; and two diametrically.

,tions 38 of the sockets, bear, are of spherical contour as represented at 39, to' form segmental spherical sockets to rotatably confine the segmental ball portions 40 of the lamp sockets, the clamping action of the sections of the member 37 against the ball portions 40 serving to hold the lamp socketsr in any position to which they may be rotatably adjusted. i

It'will be noted that as'to allv of the c onstructions shown the socket mechanisms in the sockets may be Wired to the leading in wires before assembly of the sockets With the supporting member.

While I have illustrated and described certain embodiments of my invention, I do not Wish to be understood as intending to limit the invention thereof, as the saine may be variously modified and altered, and the invention may be otherwise embodied, Without departing from the spirit of my invention.

I/Vhat I claim as new, and desire to secure by Letters Patent, is:

l. A cluster-socket structure comprising a supporting member formed of sections, one ot said sections containing openings at the joint between said sections, another of said sections being provided With projections which extend into said openings, and electric sockets having grooved portions rotatably located, in said openings, and confined therein by the projections.

2. A cluster-socket structure formed of a section having recesses in its edge, a second section forming a cap and having complementary recesses in its edge, and electric sockets having circumferentially grooved stems seated in the openings formed by the recessed joint between said supporting-meinber sections and rotatably confined therein,

and a screw passing through one of said sections and engaging the other thereof to hold the structure in assembly.

MAX HER'SKOVITZ.

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