US588570A - Shade-holder - Google Patents

Description

(No Model.)

M'.D.G.REBNGARD. f

SHADE HOLDER.

Patented Aug.' 24, 1897.

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UNITED STATES "PATENT EEicE.

SHADE-HOLDER.

SPECIFICATION forming part of Letters Patent No. 588,570, dated August 24, 1897.

Application iiled November 12, I1896. Serial No. 611,879. (No model.)

To @ZZ whom it may concern:

Be it known that I, MORRIS D. GREENe-ARD, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Shade- IIolders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in shade-holders for electric incandescent lamps; and it consists 'in the novel arrangement and combination of parts more fully set forth in the specification and pointed out. in the claims.

In the drawings, Figure l is a top plan view of the invention. Fig. 2 is a section on linewx of Fig. l. Fig. is an elevation of a portion of the outer periphery of the shade-rin Fi g. 4 is a section on liney t/ of Fig. 23, andFig. 5 is' a sectional detail showin g the characterof the controlling-lever by which the clamping-band is operated.

The object of my invention is to construct ashade-holderfor electricincandescentlamps which can be secured to the socket of such lamp and to which the shade can be attached without the use. of screws, one which is coinposed of a minimum number of parts, one whichis durable, cheap, and inexpensiveto manufacture, and one whose general frame can be struck or stamped from a single piecev of metal, the latter being cut away, so as to materially reduce the weight of the resulting frame.

The advantages of the present invention will be better apparent from a detailed description of the same, which is as follows:

Referring to the drawings, l represents the shade-ring-that is, the ring to which the shade is directly secured-the said ring having formed integrally therewith a series of, webs 2, inclined to the general plane of the circle or perimeter of the ring, the upper end of each web having secured thereto one end of a yielding band-section 3, the latter being preferably formed integrally with said web and the several sections taken collectively being adapted to form `a clamping-band, by which the lamp-socket is adapted to be embraced. The shade-rin g, the clamping-band, and the webs thus form a single integral frame. Pivoted to each web on that side which is adjacent or nearest to the free end of the band-section carried by the next succeeding web is an operating-lever 5, the long arm of which is extended toward the shadering and the short arm toward the clampingband, the free endof the short arm of said lever being pivotally secured to the terminal lug 4, formed at the free end of the section 3, carried by or forming a part of the next succeeding web, whereby upon the tilting of the long arm of the lever in the direction indicated by the arrow in Fig. l the free end of the short arm will be drawn toward the adjacent edge of the web carrying the lever, thereby drawing the free end of the band-section in the same direction and contracting the size of the clamping-band as a whole. Normally the free end of eachband-section 3 is removed a suitable distance from the adjacent edge of 'the next succeeding.r web, whereby when the several sections of the band are drawn toward the webs by the tilting action of thev levers the socket'of the lamp is firmly embraced. When once so embraced, the clamping-band is retained in its contracted position, (see dotted position of the clam ping-band in Fig. 1)-that is, it is prevented from opening or expanding-by the. inwardly-projecting knob 6, engaging one of a series of depressions 7, punched or formed in the path of said knob along the base of each web 2, the resiliency "ofthe long arm of said lever effecting said engagement the moment it is released by the operator. 1

Cut from the body of the shade-ring along the vertically-depending portion or flange thereof and disposed in a plane corresponding with the general vcircle of the ring are a series of spring-tongues 8, the free end of each of which is bent outwardly, so as to project beyond the periphery of the shade-ring through the slit 9 thus formed therein, the end'of the tongue being provided with an inwardly-deiiected gripping portion or arm l0 IOO wing in the direction indicated by the arrow in Fig. 4 the inner member of the wing will rideover the serrations of the tongue, forcing the free end thereof inwardly and thus bringing the-gripping-arm l0 nearer the center of the shade-ring, and when the entire series of gripping-arms are thus forced inwardly they serve to grip or hold the shade inserted between them, the release of the shade by any outward expansion of the tongues being prevented by reason of the frictional engagement between the several wings 14 and the serratons ll. It is to be understood that the resiliency of the tongues 8 is such as to cause the same to expand outwardly through the slots 9 and beyond the periphery of the shadering, this outward expansion to its full degree being permitted when the wings 14 occupythe posit-ion indicated in Fig. l. Vhen the outer member of said wing in said figure is tilted in the direction as shown by the arrow, it will force the tongue inwardly, (see dotted position of the tongue in Fig.l)-that is, to a position corresponding to that shown in Fig. 4L. To limit the movement or tilting of the same member of the wing in the direction by which the tongue S is forced inwardly, I provide the outer member of said wing Yadjacent to the pivotal line of the wing with an in wardly-curved limiting-arm l5, the free end of which is adapted to arrest the rotation of the wing at the proper time by comingl in contact with the outer face of the adjacent limiting-wall of the slot 9. lt is of course apparent that any other frictional contact between the wing li and tongue 8 could be substituted for the serrations formed along the outer surface of the tongue, and it is further apparent that the device maybe altered in many details without departing from the spirit of my invention.

In Fig. 5 I have shown a section through the general contour of the operating-lever 5, which more clearly shows the detailed construction thereof, showing as it does the pivot 16 thereof and the inwardly-deected inner end 17, by which the pivotal connection between it and the lug 4,, carried at the free end of the band-section 3, is effected.

I do not of course limit myseltl to making the frame ofthe shade-holder of a single piece of metal.

I'Iaving described my invention, what I claim isl. In a shade-holder, a suitable shade-ring, a series of webs carried thereby, a band-section forming a continuation of each web, the free end of each section extending to within a suitable distance from the next succeeding web, a lever pivoted to each web, the free end of one arm thereof being connected to the free end of the ban d-section adjacent thereto, and means for retaining the lever in any of its tilted positions, substantially as set forth.

2. In a shade-holder, a suitable shade-ring, a series of webs carried thereby and formed integrally therewith, a band-section forming an integral continuation of each web, the free end of each section extending to within a suitable distance from the next succeeding web, a lever pivoted to each web the free end of one arm thereof being connected to the free end of the band-section, and means for retaining the lever in any of its tilted positions, substantially as set forth.

3. In a shadeholder, a suitable shade-ring having a series of cut-away portions or slits, tongues having their free ends normally projecting through the slits and beyond the periphery of the shade-ring and disposed in the general plane of the perimeter of said ring, and suitable wings pivoted along the periphery of the ring and adapted upon the rocking or tilting of the saine to either force the tongues inwardly or permit thc same to expand and resume their normal position, substantiall y as set forth.

a. In a shade-holder, a suitable shade-ring having a series of cut-away portions or slits, tongues resulting` from the cutting of the slits having their free ends normally projecting through the slits and beyond the periphery of the shade-ring, suitable pivoted actuatingwings for said tongues, and means for retaining the wings in any tilted position, substantially as set forth.

5. In a shadeholder, a suitable shade-ring having a series of cut-away portions or slits, tongues resulting from the cutting of the slits having their free ends normally projecting through the slits aud beyond the periphery oi' the ring, and operating in the general plane of the perimeter of the ring, gripping-arms formed at the free ends of the tongues, suitable serrations formed along the outer surfaces of the projecting ends of the tongues, suitable wings pivoted along the periphery or perimeter of the ring for actuating the tongues, the engaging member of each wing cooperating with the serra! ions on the tongue, and a suitable arm carried by each wing for limiting the tilting of the same in one direction, said limiting-arm being adapted to bear against one of the limiting-walls of the slit cut in the ring, substantially as set forth.

G. In a shadeholder, a suitable shade-ring having a series of cut-away portions or slits, tongues formed as a result of said slits and tending normally to project through the slits and beyond the periphery of the ring, suitable lugs out from the ring and deflected outwardly, a wing pivoted between each pair of lugs, the said wing being adapted upon the tilting or rocking of the same to actuate the tongue opposite thereto inwardly, or permit its expansion outwardly, substantially as set forth.l

In testimony whereof I affix my signature in presence ot' two witnesses.

MORRIS D. GREENGARD.

lVi tnesses:

EMIL STAREK, ALFRED A. Martini.

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