US2681410A

US2681410A - Lampshade mounting

Info

Publication number: US2681410A
Application number: US159085A
Authority: US
Inventors: Sherbinin William N De
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-04-29
Filing date: 1950-04-29
Publication date: 1954-06-15
Anticipated expiration: 1971-06-15

Description

June 1954 w. N. DE SHERBININ 2,581,410

LAMPSHADE MOUNTING 2 Sheets-Sheet 1 Filed April 29, 1950 (Ittomeg Snveni'or un 1 1 w. N. DE SHERBININ LAMP-SHADE MOUNTING Filed April 29, 1950 2 Sheets-Sheet 2 mentor:

Mil/A? Maaf e/xv/A/ By A I i (Ittorneg Patented June 15, 1954 UNITED STATES PATENT OFFICE 5 Claims.

' This invention'relates to electric lighting 'fixtures and more particularly pertains .to' lamps of the type having a shade which'is attached to and supported on the electric light bulb of the lamp.

Heretofore, in lamps of the type referred to, the shade has been supported on the bulb'by an adapter which is assembled from a plurality of separate pieces. For example, the bulb engaging portion is in several pieces and the shade engaging parts are separately produced, and all the pieces are secured together to form the adapter. This is time consuming, complicated and expensive.

The present invention overcomes these disadvantages andtprovides an adapter for securing "a lamp shade to .an electric light bulb which is made in one piece and yet adequately performs all the functions of the previous .rnulti-pieoe type.

The invention will be understood from the following description when considered in connection with the accompanying drawings forming a part thereof, and in which:

Fig. 1 is a perspective view of an adapter embodying the invention, shown supporting a plastic lamp shade on an electric light bulb;

Fig. 2 is a sectional view tazen on line 22 of Fig. 1;

Fig. 3 is a sectional view taken on line 3-3 oi Fig. 1;

Fig. 4 is a view-in elevation, on an enlarged scale, showing the manner in which the shade engaging portion of the form of the adapter shown in Figs. 1 to 3, is formed;

Fig. 5 is a top plan view of 'theiadapter, shade and bulb shown in Fig. 1 with a modification in the shade;

Fig. 6 is a perspective view of another :form of adapter embodying the invention.

Fig. 7 is a top plan view of the adapter shown in Fig. 6, on anenlarged scale;

Fig. his a sectional'view online 8-8 of Fig. 7;

-Fig.9 is a view inelevation showing'the manner in which the shade engaging portion of the form of adapter shown in Figs. 6 to 8 is formed initially, and

Fig. 10 is a top plan view of the shade engaging portion of the adapter shown in Fig. 9.

Like characters of reference designate the same or similar parts throughout the several views.

Referring to Figs. 1 to 5 of the drawings, reference character I0 designates an electric light bulb mounted in the usual socket, not shown,

o a which is secured to any suitable electric lighting fixture, now shown. The plastic shade II has an inwardly projecting flange l2 which constitutes in sheet an annulus having diametrically opposed notches I3 in the upper part of the annulus.

The adapter "comprises a bulb engaging portion and a shade engaging portion, which, in

the form shown in Figs. 1 to'5, specifically en- 'point I8 approximately above the top of the bulb where it is bent at a sharp angle and extends outwardly at is to the annulus engaging portion. I In like manner, the outer end of the loop [5 continues upwardly at 29 to a point ZI Where it is bent at a sharp angle and extends outwardly at 22 to the annulusengaging portion. The parts I9 and 22 are reversed with respect to each'other as compared with the parts H and 29 with the result that the angles at the points is and 2| engage eachother and limit the movementapart of the two annulus engagingportions at the upper ends of theparts I 9 and 22.

The annulus engagingportion on the part 22 comprises an extension .of that part which is bent into the form of an S to provide a recess to receivethe annulus ii? of the shade H. The 8 includes a return bend 23, Fig. 3,-a'reverse1y extending part 24, a return bend 25, and a straight end portion which is diametrically cut at 26 in a plane parallel-to the plane of the part 22. toprovide two parts Z? and 2 8, Fig.4, which then are moved laterally, substantially parallel .;to..the:p1ane'ofthe cut 26, to the positions indicated in dotted lines in Fig. 4 wherein they form a V. The part 27 is also bent downwardly, as best shown in Figs. 2 and 3, until its outer end is at the same elevation as the part 28. Thus a slot is formed between the reversely extending part 2-4 and the V-shaped parts 2? and 28, which receives the narrow part of the annulus I2 of the shade provided by the notches I3. The annulus engaging portion of the part I9 is formed in the same manner.

To mount the shade I I on the bulb Hi, the loops I4 and I5 are spread apart suificiently to permit tached to the ring and annulus.

face of the annulus 32.

the bulb to be inserted between them, by movin the bulb upwardly toward the part it of the wire which runs across the top of the bulb, or by moving the adapter downwardly on the bulb until part I6 is in contact with the top of the bulb. The annulus engaging portions are then moved toward each other until they can be attached to the annulus 12 of the shade with the V -shaped parts 2'! and 28 in alignment with the notches l3 and the reversely extending parts 24 just below the lower surface of the annulus, after which the adapter is released and the parts I9 and 22 will spring apart and the end portions thereof will engage the annulus in the manner illustrated and the shade will be mounted on the bulb. If desired, the adapter can be attached first to the annulus 12 in the manner described, after and description and that changes can be made in the form of the several parts of the adapter disclosed without departing from the principles of the invention. Accordingly, the invention is not to be limited excepting by the scope of the appended claims.

What is claimed is:

1. An adapter made from wire for securing a lampshade to an electric light bulb comprising a spiral central portion, the spiral including subwhich the adapter will be mounted on the bulb 10 as described. The annulus engaging portions of the adapter are formed to engage the annulus snugly but detachably to provide a firm grip on the shade. The notches 13 of Figs. 1 to 3 are rectangular in con-figuration, whereas the notches 29 in Fig. 5 are W-shaped.

In Figs. 6 to 8, the shade 3G is provided with a wire ring 3| at its upper end to which is secured, concentrically of the shade, an annulus 32 by means of three rods 33 welded or otherwise at- The adapter is like the adapter shown in Figs. 1 to 5, excepting for the annulus engaging portions and the

adjoining parts

19 and 22 which extend upwardly and outwardly from the angles [8 and 2! instead of just outwardly as in the previous form. The intermediate portion of .that part of the wire which extends beyond the part is is out diametrically at 34, and each of the two parts thus formed, is bent outwardly in a plane parallel to the plane of the cut 34, to form a V-shaped section 35. The two sections 35 form a parallelogram beyond which extends the terminal part 35 of the wire. At the inner end 37 of the parallelogram, the wire is :bent at an obtuse angle to provide a shoulder upon which rests the lower sur- The two V-shaped sections are then bent upwardly at the apices of the VS to provide portions which engage the inner circumferential surface of the annulus, and the terminal part 36 is bent outwardly to provide a flange which will assist in retaining the adapter on the annulus and prevent accidental displacement.

The adapter of Figs. 6 to 8 is mounted on the bulb It in the manner previously described. The

adapter is attached to the shade by moving the annulus engaging portions toward each other until the upwardly extending and terminal portions 36 can be inserted in the aperture of the annulus 32, after which the adapter is released and the V-shaped portions 35 will spring apart and will engage the annulus as shown in Figs. 6

The adapter shown in Figs. 6 to 8 can also be utilized to mount a bridge type lamp shade on an Number stantially two loops, the bulb being received between the loops, the spiral having end portions which extend tangentially from the spiral and toward each other so as to cross one another, a bend in each end portion at the point of crossing, each bend partially encircling the other end portion, and shade engaging means carried at the free ends of said end portions, the shade engaging means comprising a portion of each free end bent back on itself and a U-bend formed in the bent back portion, part of the bent back portion of the wire being cut longitudinally thereof to provide shade engaging portions separated from each other, the separated shade engaging portions being bent laterally of the axis of the wire substantially in opposite directions to provide contact with the shade at spaced points.

2. An adapter as defined in claim 1 wherein the separated shade engaging portions are at the terminal portions of the free ends of the wire.

3. An adapter as defined in claim 1 wherein the separated shade engaging portions are at the terminal portions of the free ends of the wire and the separated portions are bent apart to form a V,

4. An adapter as defined in claim 1 wherein the separated shade engaging port-ions are adjacent to but short of the terminal portions of the free ends of the wire.

5. An adapter as defined in claim '1 wherein the separated shade engaging portions are adjacent to but short of the terminal portions of the free ends of the wire and the separated portions are bent apart to form a parallelogram.

References Cited in the file of this patent UNITED STATES PATENTS Name Date 191,755 Duff June 12,1877 1,282,593 Kossman Oct. 22, 1918 1,487,758 Rabideau Mar. 25, 1924 1,566,327 Johnson Dec. 22, 1925 1,903,985 De Sherbinin Apr. 18, 1933 2,040,117 Wilson May 12, 1936 2,475,405 Rousselle July 5, 1949 2,483,354 Stiifel Sept. 27, 1949 2,596,626 Vogel May 13, 1952