US878299A - Globe-holder for gas-burners. - Google Patents

Description

PATENTED FEB. 4, 1908.

W. LIVINGSTONE.

GLOBE HOLDER FOR GAS BURNERS. APPLIOATION FILED MAR.11. 1907.

ATTORNEYS 1 Unrrrrn u? "tithe PATENT curries.

WILLIAM LIVINGSTOXE, OF NEW YORK, N. Y., ASSIGNOR TO HlMS ELF AND JOHN H. DALE.

' OF-NEW YORK, N. Y.

GLOBE-HOLDER FOR GAS-BURNERS.

Specification of Letters Patent.

Pstented set. 4,, 190

Application filed March 11. 1907. Serial No. 361.734.

T 0 all whom it may (once/"n:

Be it known. that l, Winrmu LIVING- STONE, it citizen of the United States, residing in New York, in the borough of Queens; county of Queens, and State of New York, have invented certain new and useful Improvements in Globe-Holders for Gos-Burners, of which the following is a specification.

Thisinvention relates to on improved globe-holder for gas-burners.

HQ'FQlIOfO-YQ :Eilobediohlers were made from disk shaped blunks ol sheet metal from which a considerable portion has to be punched out so to ;.irovide for the sectorshcpcd oncnin r hr when the mills! arms. Besides the blanks i he cut t'roiu e. strip o'l shectu l somewhat wider than the diameter of (die-holder plus the height ol' the semiscirculor screw lug, each requiring; an on equal to the the width of the strip, or, in other for producing a globeholder say t inclus in diameter, it requires an urea of 23.75 square inches of sheet-metal, while the finished globe-holder has only :1 superficial arcs of 6 .50 square inches.

The object of [h invention is to produce globe-holders with nsiderubly less waste of material, so tha 1. d "on be imule rt .1. much lower price. than. b the nustlmds l' rctoi'ore in use; and for this mrpos the invention consists in o gloi. -hol-1ler for gusburners such as will. be hereinafter described and finally pointed out in the claims. I

In the sicet'impunying drawings, Figure 1 shows a planwiew showing several improved blanks for globe-holders for gas-burners cut from a, strip of metal, Fig. 2 is o plain-view of the blank, with the circumferential rim bent up from the some, Fig. I} is o. 1 l2111Vl0W of one half of the blank shown in Fig. 3, expanded into circular form, ltlltl at plan-view of one half of the completed globe-holder, and Fig. *1 is a vertical transverse section on line 4, 4, Fig. 3.

Similar letters of reference indicate corresponding parts throughout the several figures.

In making my improved globe-holder for gas-burners, the blunks A are cut from it sheet-metal stri' which is a. little wider than the full Width of the blank, said blank being of such a configuration as to contain not only the required superficial area. of the globe holder, but also the exact length of the circumference of the finished globwholder, but, instead of being made in.circulzrr shape, the circnnit'ermitial portions of the blank are curved inwardly between the arms so as to be susceptible of being expanded into the desired circular form, without detrimental effects oil crowding zmd kinking the sheet-metal in one part or unduly stretching or straining it in mother part. Thus the blank from which each globe-holder made is of substantially triangular shape, with clon 'atcd openings extending substantially parallel to the sides. vex, as shown, while the sides are inwardly curved.

'lo properly describe the method of nmking it globe-holder from the blank shown in Fig. l the rim-lino 1' of the bhmk must represent a radius ol' say 2 inches so as to produce a glolic-lioldcr having a diameter of say 4 inches. While the inner radius oi the rimline 1;, shown in Fig. l, is 3 inches, the radius of the rim shown in dotted liucsin Fig. 1, at the center-line of the arms 7, has to be so much larger as is ripiquired by the inclination of the arms toward the depressed center, Fig. l, which in this case would be a rudiusot' 2.09 inches. The inwnrdly-curvcil portions a of the bhmk being parallel with the inwardlycurvcd portions of the rim-line will NH- tuko of on changes ol direction from their sinuous course to a. circular slutpe when they are forced in outward direction for com leting the circular shape of the globe-ho der. The radial arms 7) divide the bhurk end the globc-holder mode therefrom into three parts which are exactly ulike the, arms and rims being corrugated so as to import the required strength to the globe-holder.

ln making the gl be-holdcr, the blanks are 'lirst cutout from :t strip of metal, as shown in Fig. Leach blank being provided at the outer circumference of the convex portions and in the center-lines of the arms withscmi-circular )rojections d which serve for holding sum screws to secure the globe in the rim of the glODG-llOltlfil when the some is placed in position on the finished globe-holder. In cutting out the blank, the narrow curved opcnlugs 0 between the arms and the inwardly curved portions, and the openings 0 at the center-portion are cu t out at the some tune.

The corners of the blank are con The so-l'ormed bhm k A is then first subjected to the action ol'- dies by which the rim c is bent up, with the lugs al so that the blank circular shape andthe arms 6 the required inclination towards the ccnter,as shown in the ri 'ht half of Fi 3. The arms and the circumferential portion adjacent to the rim are then subjected to the action of dics by which the arms are centrally corrugated and the portion adjacent to the rim provided with a circular corrugation by which sullicient 1a strength 18 nnnarred to the lobe-holder to r :7 support the globe. Finally the molesting lugs 11 are provided with scrcwdioles ior the screws by which the bottom rim of the globe is retained on the holder. I The essential feature of novelty consists in the peculiar shape of the blank, with its alternating inwardlywurved or concave portions and intermediate arc-shaped or comm-report1ons and the narrow segmental openings in the body of the blank, the concave portions being then forced in outward direction so as to complete the circular shape of the globeholder. By this arrangement the waste in stool: which occurs in the globe-holders here tofore made is reduced to a niininnum This reduces the ex euse of the globeholders, While globc-hoh ers of exactly the same size, strength and finish are obtained. llloreover, this particular sha e of the blank will permit of the reversing o the blanks when cutting them from the stri so that the length of the strip required will e considerably shortened for any number of blanks, or, in other words,

'While one gross of 4 inch globe-holders under the old method will require a strip of 2 em ,ese

assumes the shape shown in Big. 12. The in- 5");5628 (7 n area of square wardly-curved portions of the blank are then feet, my im; u method will only require subjected to an outward bending operation 4.7/16 rid-2A7 feet or an area of 1.3,? square by means of suitable dies, or by the circu ar feet at a saving of '7 square feet or about action of rollers, so that the rim 0 assumes a The same method construction will apply to globe-holders of anysize or diameter.

Having thus claim as new am Patent:

: Letters holders consisting; of a i v e of shee t-i'netal PM J8 oi sheet-1 lar shape, ha inwardly curved elo to the sides,

A. blank for g- 'ns consisting of a of metal. havnd openings exel to the sides of substantially tria ing convex corn tending appro the blank.

4. A blank for globe-he l substantially triuugul having convex corne side-portions, there l:- k extending substen'tir illel to the sides and'defining arms ell ling radially from the center to the corner---nortions.

lin testimony, that I claim the foregoing as any invention, 1 have signed my name in presence of two subscribing witne vs.

l i lLLlAs'l Lli lll ltl'l fiil -Vvitnesses:

PAUL Gonrnr, HENRY J. SUHR'BIER.

, (unrated open

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