US592287A

US592287A - Shade-holder

Info

Publication number: US592287A
Authority: US
Publication date: 1897-10-26
Anticipated expiration: 1914-10-26

Description

(No Model.)

M. D. GREENGARD.

SHADE HOLDER.

Patented 0011.26, 1897;

7m: nonms wzTzns co, motouwa, WASNINGTON, a. c

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MORRIS D; GREENGARD,

ATENT FFICE.

or sT. LOUIS, MISSOURI.

SHADE-HOLDER.-

SPECIFICATION forming part of Letters Patent No. 592,287, dated October 26, 18-97.

Application filed November 12, 1896. Serial No. 611,878. (No model.)

- Louis, in the State of Missouri, have invented certain new and useful Improvements in Shade-Holders, 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 electricincandescent lamps; and it consists in the novel arrange ment and combination of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a middle vertical section of the shade-holder, taken on the line a; x of Fig. 2. Fig. 2 is a top plan view. Fig. 3 is a section on y y of Fig. 1, taken through the shade-ring. Fig. 4 is a top plan of a holder provided with an actuating cam-ring for shifting the slides of the clamping ring or band, and Fig. 5 is a section on 2 z of Fig.4. a

The object'of my invention is to construct a shade-holder for electric lamps which can be secured to the socket of such lamp and to which the shade can be attached Without the use of screws, onewhich can be manufactured with little cost and expenditure of labor, one whoseframe is preferably made' of a single piece of metal, and one which presents fur- I ther and other advantages apparent from a detailed description of the invention, which is as follows:'

Referring to the drawings, 1 represents the shade-ring-that is, the ring to which the shade is directly secured-e-the said ring having formed preferably integrally therewith a series of pairs of webs 2, inclined inwardly to the general plane of the circle of the shadering, one member of each pair of Webs being connected at its upper or free yielding end with the nearest member of the next adjacent pair by a band-section 3, the several sections forming collectively a clamping band by which the socket of the lamp can be seized or embraced. The shade-ring, the clamping.- band, and connecting-Webs thus form a single integral frame, the saidframe being out or stamped from a single piece of metal. The members of eachpair of webs or their outer edges normally diverge slightly from the point of their connection with the shade-ring, each pair of webs. being embraced by a slide 4, which when moved along the webs toward the clam ping-band causes the web members to be drawn toward each other, thus bringing into closer relation the adjacent ends of the adjacent sections 3 of said band. (See dotted lines in Fig. 2.) In this manner the clamping-band can be made tofirmly embrace the lamp-socket, thereby securing the frame to said socket. *Theseveral slides are operated by the upturned wings 5, which may be seized by the hand of the operator. To retain the slide in any position along the webs whichit embraces, afterbeing once shifted to any position, the same is provided with a knob or projection 6, which engages one of'a series of depressions 7, formed along the adjacent surface of a spring or resilient tongue 8, project ing from the shade-ring and forming an'integral part thereof and located between the members of each pair of webs, the springy nature of said tongue causing the depressions thereof to engage with the projecting knob of the slide at all times. ,ing the slides singly by hand I may operate or shift the same simultaneously by a suitable cam-ring 9, provided with a series of camslots 10, the Win gs 5 of the slides being adapted to pass through said cam-slots, asseen in Fig. 4, the resiliency of the wings and their general stilfness being sufficient to retain the cam-disk in place. It is apparent that upon turning the cam-disk in one direction or the other a consequent shifting of the slides takes place by reason of the arrangement of the slots 10 of said cam-ring, the several slides being driven to their lowest position when the cam-ring has been turned in the direction of the arrow in Fig. 4, in which case the wings 5 are forced to the outer ends of the slotsthat is, the ends nearest the outer periphery of the cam-ring. When the cam-ring is employed to operate the slides, the tongues 8 are omitted, as the friction between the walls of the cam-slots and the wings 5 is sufficient to retain the slides and cam-ring in any position.

- In Fig. 5 I have shown each web provided with a lip or elbow l1 nearits juncture with the shade-ring, the object of this lip being to accurately center the shade when inserted Instead of operatinto the shade-ring, the upper rim 12 of the shade (shown dotted in Fig. 5) being adapted to rest against the lips of the series of webs. Of course the lip 11 can be dispensed with, as it is not absolutely necessary.

The shade-ring is provided with a series of cut-away portions 13, across the lengths of which are adapted to be shifted about the periphery of the ring aseries of spring shaderetaining arms 1%, each arm being provided with a gripping end or deflected portion 15 for seizing the rim of the shade and each provided along the outer surface adjacent to such gripping end with a knob or lug 16, by which the said arm may be seized. The inner extension of each shade-retaining arm is adapted to slide along the inner surface of the shade-ring, being guided and kept in position by two or more inwardly-bent loops 17 17, struck or cut from the body of the metal of which the shade-ring is composed, the end of said inner extension being provided with a terminal finger 18 for limiting the outward movement of the said arm. The arm 14 is springy or resilient, and by reason of its resiliency as the inner extension slides along the inner surface of the shade-ring the outer end thereof will project outwardly through the cut-away portion 13, the gripping end 15 projecting outwardly a maximum distance when the arm has been pulled outwardly to its fullest extent, and when the arm is forced inwardly, as shown by the dotted position in Fig. 3,the gripping end thereof will,of course, approach the center of the circle of the shadering, bringing said end almost wholly within the ring. Upon the inward movement of the arms 14:, therefore, the shade is seized by the gripping ends thereof and released by the outward movement or withdrawal thereof. To retain the arms in any position, I provide the outer surfaces thereof with a series of depressions 19, with which cooperate the knobs or lugs 20, carried by the inner surface of the wall of the shade-ring adjacent to the cutaway portions 13, said knobs engaging the depressions at all times, and thus preventing the accidental shifting of the arms when once set.

It is apparent that many minor changes might be made in the present device without departing from the spirit of my invention, and it is not necessary, of course, that the frame should be made of a single piece of metal.

As shown best in Fig. 1, a notch 25 is out along the base of each section 3 near its juncture with the web 2, thus permitting the slide at to be shifted along the webs to the highest position, where it will more positively draw together the adjacent ends of the contiguous sections of the clamping-baud, pulling, as it does, on the bands along approximately the medial longitudinal lines thereof.

Having described my invention, what I claim is 1. In a shade-holder, a suitable shade-ring,

a sectional clamping-band forming a part thereof, a series of pairs of webs connecting the sections of the clamping band to the shade'ring, a tongue carried by the shadering and interposed between the members of each pair of webs, a slide for each pair of webs, the said ton gue'bein g adapted to retain the slide in any adjusted position on the webs, substantially as set forth.

In a shade-holder, a suitable shade-ring, a sectional clamping-band forming a part thereof, a series of pairs of webs connecting the sections of the clamping-band to the shade-ring, a tongue carried by the shadering and interposed between the members of each pair of webs, a series of depressions formed along the surface of said tongue, a slide adapted to vary the relative distance of the free ends of the members of each pair of webs, and a knob or projection forming a part of the slide and adapted to cooperate at all times with the depressions of the tongue, substantially as set forth.

3. In a shade-holder, a suitable shade-ring, a sectional clampingband forming a part thereof, a series of pairs of webs inclined to the plane of the circle of the ring connecting the sections of the clamping band to the shade-ring, a slide mounted on each pair of webs for drawing their free ends together upon movement of said slide in one direction, and allowing said members to assume their normal position when shifted in the opposite direction, a wing forming a part of each slide, and a cam-ring having a series of cam-slots engaging the wings whereby the slides can be operated simultaneously in one direction or the other by the proper rotation of the said cam-ring, substantially as set forth.

a. In a shade-holder, a suitable shade-ring having a series of cut-away portions, a series of shade retaining arms adapted to slide about the periphery of the ring for a portion of their length along the inner surface of the shade-ring, suit-able guide-loops cut from the ring in which the said arms are guided, a terminal inner finger forming a part of each arm by which the movement of the same is limited in one direction, a portion of the arm projecting outwardly through the cut-away portion of the ring, a gripping end forming a part of each arm, said end being adapted to recede from the center of the shade-ring upon the shifting of the arm outwardly, and to approach the center when moved inwardly, thereby enabling the gripping ends of the arms to seize the shade introduced into the shade-ring, substantially as set forth.

5. In a shade-l1older, a suitable shade-ring, a clamping-band forming a part of the same, a series of webs connecting said band to the ring, a series of lips formed in the webs near their juncture with the shade-ring, whereby the upper rim of the shade is properly centered when introduced into the ring, substantially as set forth.

6. In a shade-holder, a suitable shade-ring,

having inner extensions guided along the in-' ner surface of the ring, and outer portions projecting through the said cut-away portions, a series of depressions formed along the surfaces of the outer projecting portions of the arms, and a'knot or projection formed along the inner surface of the ring adjacent to the cut-away portion for cooperating with the depressions formed along the sliding arms,

thus retaining them in position whenonce adj usted, substantially as set forth.

8. In a shade-holder, a suitable shade-ring, Y

a series of pairs of webs carried by the same, band-sections connecting the member of one pair of webs with the nearest member of the next succeeding pair, a controlling-slide for each pair of webs, and a notch formed between each band-section and Web to a suitable depth for permitting the shifting of the slide to a maximum distance toward the me dial line of each band-section, substantially as set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

' MORRIS D. GREENGARD.

Witnesses:

ALFRED A. MATHEY, EMIL STAREK.