US1384395A - Shade-holder - Google Patents

Description

H. D. McFADDIN.

SHADE HOLDER, APPLICATION FILED FEB. 23. I917. RENEWED APR. I6, 1919.

1,384,395, Patented July 12, 1921..

5] nvewfoz UNITED, STATES NT OFFICE- n nRIsoN p. erAnnm, OF EAST ORANGE, NEw RSEY.

SHADE-HOLDER.

I Specification of letters gatent Application filed Febrilary23, '19 7, Serial No. 150,373. Renewed April 16, 1919. serial no. 290341.

T 0 all whom it may concern:

Be it known that I, I-Lmmsorr D. MoFAnin East Orange, county ofEssex, andState of New Jersey, have invented a certain newand useful Shade-Holder, of which the following is a'spejcificationq This invention is a shade holder and,'mo're particularly,a holder of the typemounted on a shade and adapted to resiliently grip the bulb of an incandescent lamp to adjusta'bly support said shade directly upon the lam h l'iiny of the shade holders of this gen eral type heretofore employed possess the well known disadvantage that, when the lamp is forced into the grasp of the'spring clip with which said holders are provided, great care must be exercised not to push the lamp into place with too much force; otherwise, the spring clip will1give su'fiiciently to allow. the projecting point of the lamp to strike against some inietallic part of the shade and be broken off, with the result that the lamp will be shattered. Moreover, the

majorityojf holders this type in use require some sort ofadjustment, either or a threaded member, or. some other means, to lock the supporting clip tothe shade, or to govern the operations of said clip in maintaining the shade in anyof its "angular positions relative to the lamp. I

W f e ing disad an age in m h i 1st th p e n inven on i to so constructthe shade holder. that, when he amp srr into gr pp g nga ment with the spring clip thereof, it will,

after it reaches its proper position, "be preeluded by such clip fromfur-ther"advancement, and, accordingly, the rojection at the end oft he lamp is safeguarc eld from" coming into contact withjthe metallic portion of the holder, or shade, thereby ,olovi'ati'ng the well known danger of breakage inherent in prior are structures.

A further object of the invention is to so organize the holder that no adjustments whatsoever will berlequirechbut that the llolder will, at all times,fautQ I atic-ally engage with and grip the lamp, and will, moreover, maintain the shade in any of its pre determined angular positions without, any

' ad ustment whatsoever.

eatnres of theinvention, other those specified, as well as the advantages thereof, will be apparent from the hereinafter deer Fig. a

m g, p

tailed taken in conjunctionwith the aceom- D ying drawing, a i n. ofthe' United States, residing In the accompanying drawing, I have llustrated one practical embodiment of the nvention, but the construction shown therein IS tobe understood as illustrative, only,

and not "as defining theflimits of the. ini showing the manner in whiohthe spring I clip gripsthe same to maintain the "shade in position;

In this view, the shadeancl the member for securing the shadetothespring c ip member are omitted. 4

Fig. 3 is an underneath plan view taken it in the plane of line'3 3 of F ig..2,"and

a so

Fig.4 is a detail section on the line 4+4; v

Referring to the drawing, A indicates an incandescent larnp bulb, on which it is. de-

sired to mount shadeB. The sha'de may be of any well known and conventional form, as this forins no part of the present yentionj Inanyevent, a supporting shell or thiinble C is provided, w th which su porting shell associated resilient means adapted to grip the lamp bulb: A, further means being Iprovidedfin thel form of area for binding the shadeto the v supporting shell.

Si1pporting shelllor thimble U is provided ,YV l h ip rt v ng a i wa ly pe 1 111g, frusto-conical form, on the outer eon verging wall of ,whichtheinner surface *of shadeB is adapted torest, as shown in jFig, 1 In order-to allow of the formation of shelllfroin "relatively light material, ,it is" preferably eircumferentially beaded,

Le ete' hi h ead r es e ist h the *sl jell .sh l lies afmet'allioring F of'substantially the, same externaldiameter as thejinnerdiam eteroflthe shell, so thatsaidringlies around a ainst distortion. The iipper end of d is closed and "fofl insfle Seat in which theinne m g of the shell an n he ang e terme the Side afidth l'o op thereof. Ring is niaintained in this pos tion by means of tongues f, which are .which the ring is made, is a pair of dependingstem-like portions 2', carrying at their 7 lower ends oppositely positioned wireloops I. In the preferred embodiment of the invention, ring F, loops I and theirjconnectingstems 2' are all iormed'irom a single piece of wire bent intorthe form shown 111 Figyl'. Each of the stems i is in the form of two parallel wires, supportingqat'theh' lowerends atloop :I, whlch 1s, because of the i'act that it .is substantially closed, of a comparatively rigid nature. Thus, the wire bent asdescrlbedgforms a spring Clip or i clamp, the stems 2', particularly Where they.

,join the loops I and the ring F, forming, in

thejmain, the springy or resilient parts-of said clamp. w 'j 3 The diameter of ring F, from which loops I depend, is somewhat less than'the greatest diameter of the lamp, bulb A, so that, when the bulb is introduced :between said loops and pressed into the position shown in Fig.

2,the loops are forced apart and the clip thereby placed undertension. This tension is sufiicient to'cause thelamp bulb'A to be tightly gripped between, the loops for the ,purpose of maintaining su-pportingshell G in position on said bulb. v.I-Iowever, asthe loops 7 I are substantially circular, they, may

be shifted about upon the outer periphery of the bulb to bring supporting shell G into to -thelamp.

various desired angles of inclination relative A salient feature of the invention resides in the fact :that, after the, bulb has been forced into. the position shownin Fig.2, eaohof the vloops I embraces a portion-of .the convex surface of the bulb, and a porwhat I olaim 'asn'ew, anddesire to secure by Letters Patent, is: l

tionjof said. surface extends through and beyond eachloop. Thus, the portion of each loop-adjacent its stem" 71 forms, inI'efi'ect, a shoulder 2, against which shoulders. the

curvilinear surface of the bulb comes to seat,"

' upon introduction into the grip of the spring clip. Said'fttvo shoulders 2" of loopsI thus engage with the upper portion of thebulb comparatively, near its center',-and great pressure would be} necessaryv to; force I the i L lam 3 any; fartherginto the spring clip after the ulb has come into, engagement with. said shoulders, asitwould benecessaryI to expand projecting point atthe endof the lamp would come into engagement'with themetallic shell and cause the breaking' of the lamp. This safeguarding of the lamp is "due, to a considerable eiitent, to the fact that loops I are substantially rigid, and are not "adapted toeXpancl or bend open to allow of vforward movement'of the lamp as has genthreaded tap positioned centrally of the closed end of the supporting shell; Retaining cap D isin the form of a dished shell of suflicient size to close the opentop of the shade, 'while the lateral edges of said cap a-reiadapted to engage with the outer sur faceo'f said shade so that,'when the cap is screwed down tightly,'it forces the shade to a'firmseat upon the frusto-conical portion of the supporting shell. Retaining cap 1) is preferably provided with ventilating open ngs 03, while the openings 0, formed in the closed end of the supporting shell by the stamping. out of portions of said shell to form the tongues o-peningsin the shell.

-It will be manifest from theforegoing description that the sha'deBis supported upon lamp A without the necessity; o'f any means which requires adjustment, either to lock the shade in any predetermined position .relative'to the lamp, or to governthe angular inclination of said shade relative to the axis of said lamp. The strength ofv the clip f, serve as ventilating is such,-and the parts are so near1y"balanced,

that theshade will, of -itself, and through the clamping oftheelip, retain any desired angular position, v

Havlng thus fully describedthe invention,

;-'1. A shade holder embodying an inverted 'frustoj-eonical thimble 011 which a lamp shade is adapted to be-seated, means for detachably holding the lamp shade to the thimble to permit'of a change of shades, a pair of spaced loops positioned beneath the thimble and each of which is, provided with n-pair Tot upwardly extending resilient stems with the stems'ofeach pair parallel. to one an} other gand contacting with fone another throughout substantially their entire length and theiupper ends of; the corresponding stems of each pair being connected with one another by a substantially semi-circular porti'on,which is seated in'thebase of the thim- "ble,an'd tongues stamped up from the thirnble and bent over'the semi-circular portions for securing them firmly" to the thimble,

fwhereby said loops are resiliently mounted of the thimble and from the termini of which semicircular portions depend resilient stems carrying at their bottoms oppositely positioned substantially parallel loops, whereby said loops are each supported on two resilient stems and means for securing the semicircular portions of the wire to the thimble.

In testimony whereof I have signed my 20 name to this specification.

HARRISON D. MoFADDIN.

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