US1797689A - Lamp shade - Google Patents

Description

March 24, 1931. MAUCHER 1,797,689

LAMP SHADE Filed Dec. 15, 1929 mWK-W I Patented Mar. 24, 1931 LAMP SHADE Application filed December 13, 1929. Serial No.-,4l3,891.

The subject matter of the present invens tion relates generally to shade. supportsand the improvements are directed to novel and unique means whereby a lamp-shade or the like may be removably mounted upon a lamp bulb. M. Primarily the object of the inventionresides in the provisionot meansfwhereby a. lampshade may be coupled with an'ordinary electric lamp bulb without resort to forceful insertion of the latter Within said means.

Another object is to provide clamping or embracing means adapted to be operated to accommodate the various sizes of lamp bul and to springingly engage the same in a manner to preclude accidental displacement of the shade. v

Still another object is to provide a device of the above mentioned character wherein the said clamping means may be attached. to and detached from the lamp-bulb without injury to the surface ofthe latter.

A still further object is to provide means whereby the shade may be tilted in a vertical plane withoutdisturbing the position 'of the clamping means with respect to the lamp bulb.

[the clampim or embracing means removed sha dc away.

With these objects in View, together with others which will appear. as the description:

proceeds, the invention resides in thenovel' formation, combination, and arrangement of parts. all as will be described more fully here inatter, illustrated in the drawings, and par: ticularly pointed out in the claims. In said drawings: i e Figure'l is an elevation of my novel lamp support certain parts being broken Fig. 2 is an elevation of the upper portion of the frame of the lamp shade, illustrating from a lampbulb. p

Fig. 3 is a view like unto Fig. 2 as seen from the left of said figure;

Fig. l is a plan view of the parts shown in Fig. 3.

Referring now more in detail to theaccompanying drawings, wherein like characters of reference denote similar partsthroughout the several views, let 5 indicate generally the lamp shade, which comprises upper and lower frame members Sand 7 respectively, which are maintained in suitable spaced relation'by means of the rods 8, thelatter having their extremities soldered, or otherwise secured, to said'frame members. 1

From the foregoing itfwill be seen that the trameof said lamp shade is exceedingly light in construction and as the particular dimensions thereof are variable, likewise the decorative covering?) thereofmay assume anv number of em'bellishing effects as desired. p I p Upon inspection of Figs. 3*ancl 4 it will be obser, ed that said top framememberfi providedpwitha cross-bar 10, which eX- tends diametrically thereacross and which is bent to dispose its medial portion below the horizontal plane or" said frame. member 6, and as will presently appear, it is this crossbar that rotatively supports the clamping or embracing means about to be described in detaili Said clamping means comprises a pair of members 11 and '12, whichare somewhat similarin construction, eachbeing preferably formed from a singlepiece of wire, or the like, to present loop portions. 13 and 14, adaptedto 'en'gage the surface of a lamp bulb 15, and ear portions 16 andl'z', As shown in said drawings the members 11 and 12, intermediatesaid loop portions. and said ear portions are bent around said cross-bar tofprovide a pivotal connection between the respective parts, and thus when the ear portions 16 and 17, (see 2), are drawn to gether, as shown in Fig. 1, said loop portions 13am 14; swing to the position as illustrated,

said cross-bar being the axis of the movement. Upon: inspection ofl igs. 3 and i, it will be seen that I have incorporated a tensioning arrangement v18 between said ear portions, which encircles the medial'portion of said cross-bar 10 and has its end portions 19 and 20 abutting the bars 21 and 22 affixed to said ear portions as shown;

in view of said tensioning arrangement 18,'said loop portions 13 an {14 are normally maintained in the position shown in Fig. 2, but whenth'e ear p'ortions are manipulated,

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as aforesaid, the spreading apart'of said loop portions permits the insertion of the upper portion of the lamp bulb 15 and when said ear portions, are released said loops gently abut the said bulb and the shade is supported as indicated in Fig. 1. Since said tensioning arrangement encircles the .medial portion of said cross-bar 10 and in view of the constant force exerted 011 said ear portions, the clamping means frictionally engages said cross-bar sufficiently to normally maintain the shade in an erect position as shown. However, this frictional engagement is of a nature which permits of tilting the lamp shade with the cross-bar as an axis without disturbing the engagement between said loop portions and the bulb. Obviously, this prevents marring of the externalsun face of the bulb which would occur were the spreading apart of said loop portions dependent on the forceful insertion of the bulb therebetween. This feature applies with I equal force when the clamping means is attached to or detached from the bulb,"since this operation depends upon the manipulationof the ears andnotth'e forceful spreading apart of said loop members. It is manifest that in the older forms wherein the resiliency of the loops was depended upon to secure the proper engagement between the latter and the lamp bnlb,*the insertion of a relative large bulb gradually des royed the resilient quality of said loops so that the attachment of smaller bulbs was substantially impossible. As distinguished from these forms my device is adapted to be I attached to the varying sizes of lamp bulbs without impairment to the resilient attributes thereof.

From the foregoing it is apparent that'I:

have produced an article adapted to aiiix a shade in proper posit-ionwith respect to the lamp bulb and after the attachment has been made said shade ma be tilted or swun 1 b in a vertical plane at right angles to the horizontal axes of the medial portion of said cross-bar 10.

The device is exceedingly simple in con struction and in view of the small number of parts, the same may be produced at a low cost.

Various slight changes might be madein the general form and arrangement of the parts described without departing from the invention, and hence I do not limit mysel to the precise'details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim: I I l 1. In a device of the character described, a frame member, a cross-bar associated with said frame member andclamping means rotatively borne by said cross-bar, said means including. a p i 10 loopm mbersadapt to I engagement with said bulb.

3. In a device of the character described, a frame member, a cross-bar associated therewith, a pair of loop. members borne by said bar, adapted to rotate on said bar and a tensioning arrangement adapted to maintain said loop members in engagement with the sides of a lamp bulb, said tensioning arrangement permitting of tilting of said frame member with respect to said bulb without disturbing the engagement of said loop members therewith. I I I i. In a device of the class described, a frame member, across-bar associated withsaid frame member, and clamping means thereon comprising a pair of members each formed from a single piece of wire to present 100 portions adapted to yieldingly engage the surface of a lamp bulb.

5. In a device of the class described, a frame member, a cross-bar associated with said frame member, clamping means thereon comprising a pair ofmembers each formed of a single piece of wire to present loop portions pivotally mounted on said cross-bar and adapted to yieldingly engage the surface of a lamp bulb. I I

6. In a device of the class described, a frame member, a cross-bar associated with said frame member, clamping means thereon comprising a pair of members each formed of a single piece of wire to present loop por- JOSEPH MALICHER,

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