US985031A - Auxiliary holder for lamp globes, shades, &c. - Google Patents

Description

M. HERSKOVITZ. AUXILIARY HOLDER FOR LAMP GLOBES, .SHADES, 6w. AYPLIOATION FILED JUNE 22, 1910.

985,031. Patented Feb.21,1911.

UNITED sTATEs PATENT OFFICE.

MAX I-II ERSKOVITZ, OF CHICAGO, ILLINOIS.

AUXILIARY HOLDER FOR LA-I VIZ? GLOBES, SHADES, 8w.

Specification of Letters Patent. Patented Feb. 21, 1911.

Application filed J'une 1910. Serial No. 568,374.

To all whom it may concern:

Be it known that I, MAX Hnnsnovrrz, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Auxiliary Holders for Lamp Globes, Shades, &c., of which the following is a specification.

The subject of the present invention is an auxiliary holder which is adapted to be removably attached to a globe, shade, chimney, or the like, of a lamp, so that they are separably held together, and the auxiliary A serious objection to most globe-holders now in use .is that they contact with the globe at a number-"of distant points and consequently, by reason of the superior conduc-. tivity of metal as compared with a r, the

globe is subjected to a more intense heat at these points of contact than at other parts,

with the result that the expansion and contraction of the globe is unequal and it cracks. Furthermore the pressure of the straddle arms or clamping screws produce pressure upon the globe which is more or less unequal and this increases thetendency to breakage.

The object of the present invention is to provide an auxiliary globe-holder adapted to be interposed between the globe and the main globe-holder and Whichv when so inter-, posed will obviate the above-named ob cc-- tions to globe-holders of many of the kinds now in use. To this end the improved auxiliary. globe-holder is of such construction that it may be readily attached to globes of many of the well-known kinds and whenso attached may be engaged by-globe-holders of many of the well-known kinds; it will contact with the globe throughout the entire extent of their adjacent surfaces so that the transmission of heat to the globe will be uniform throughout; it will clamp the globe either firmly so as to prevent it from-shak ing about, or loosely so as to permit a free air space between them for carrying oft the heat; it may be used in either upright or inverted position: with either electricity or gas; and with either an open or an incan 'descent burner.

In short, the invention relates to the mixiliary globe-holder adapted to be interposedbetween the globe and the main globe-holder, regardless of their construction excepting that they must be adapted to each other.

To this end the invention consists in the features of-novelty that are hereinafter described with reference to the accompanying drawing, which is made a part of this specif cation, and in which:

Figure 1 1s a vertical central section of an inverted, incandescent gas lamp, having an auxiliary globe-holder embodying the invention. Fig. 2 is a similar view of an up right lamp. Fig. 3 is a horizontal section, on a smaller scale, of the auxiliary globeholder. I I

The improved auxiliary globe-holder consists of an inner ring-A and an outer ring B, both ofwhich are preferably spun of suitable metal. The inner ring has a lateral shoulder, a, extending outwardly, which "preferably is in the form of a lateral flange of somewhat larger diameter than the burner opening of the globe, C, so that it will overlap the margin. of the globearoundthe burner opening and engage the inner face thereof. In allinstances the maximum diameter of the lateral shoulder which engages the inner face of the globeis'greater than the burner opening. If the globe has also an opening .of greater diameter than the shoulder. of the ring located opposite the burner opening, I it may be put in place through this larger opening, but if the globe is entirely closed, save for the burner opening, or has 'no opening large enoughto permit the ring and its shoulder to pass through (assuming the shoulder and opening to be circular) it may be inserted through the burner opening by making the shoulder or opening non-circular. This is preferably done by cutting away the shoulder on one or more chords of its circumference as shown at a. The ring A may then be inserted through the burner opening edge- Wise and put in place. and the clamping ring l3 secured to it. also, has a lateral shoulder 6, extending outwardly, which is preferably in the form of The clamping ring,-

. ter than the a lateral fian e of somewhat larger diamedourner. opening of the globe,

so that it"will -overlap the margin'of the "globearound'the burner opening and en'- jgage the outer face thereof, but'in all cases this flange may; be fof" uniform diameter throughout. TheririgS, vA andB, are-relatively adjustable, preferably by means of engaging screw threads formed on them, so .10

that the fiangesa andb, maybe adjusted r to any desired distance'ap'art, accordingly'as it is desired to firmly clamp the globe be-' tween them, or. allow .a slight play between them, the latter-being preferable for the reason that it'- allows free circulation of air for carrying off the heat. In either event shoulders are positively held so that. the globe Will'be positively supportedbythe thenlowermost shoulder and prevented from g slipping-down, over the burner when used in either arr-inverted position, as shown. in

Fig." 1,-which "shows an inverted incandes-' cent'igas burner,'D, or an upright position a as shown .in' Fig. 2, which shows. an upright incandescent gas burner,

. The outer end-of theinner ring A is spun so as toprovidean outwardly presented groove a adapted to securev the ends of the set screws,- F, as is shown in Fig.1; -or. the p30.

Q main globe-holder such as shown in Fig.2,

reflexed ends of the spring arms,.G,' of a to-which, main globe-holder the improved 'j-globe-holde'r is auxiliary. In either event an incident or result .of the groove is the v the screws or fingers of the main globeholder project, whereby the auxiliary globeholder is firmly supported whichever side is uppermost. i

What I claim as new and desire to secure by Letters Patent is: Y i

1. An auxiliaryglob'e-holder havin inthe other, said rings having engaging screw threads wherebythey' are adjustably secured together, the inner ring having at one of its ends a lateral shoulder adapted to engage the inner surface of-the-globe and at the other ceive the globe-holding devices 0 the main globe-holder, and the outer ring having a surface of the globe.

the other, the inner ring having "a lateral provision of two oppositely presented, con; tinuous circular shoulders between which combinatiom'two rings located one within end a circumferential groove ada ted to re lateral shoulder adapted to; engage the outer 2. An auxillary globe-holder having, in' combination, two .rings located: one within shoulder of greater diameter inone direc--

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