US1128756A - Tablet-support for talking-machines. - Google Patents

Description

" 1 in Arn.-

PLTNY CATUGCT, 0F NJEWBK, NEW JERSEY, ASSTGNOR T0 A. F. MEISSELBACH @s BROTHER, A COOJRATIUN 0F NEW JERSEY.,

TABLET-SU1PPORT FOR TALKIN G-1VICHINES.

To all whom it lmay concern Be it known that l, PLINY Carocci, a citizen of the United States, residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new has for' its principal object, the' materiallessening in the weight oit the structure while at the same time l am able to preserve.

the requisite strength and stability of the support.

lllt has been the custom of manufacturers to construct the tablet support of comparatively heavy sheet metal for retaining the support in its ori al shape. The making of the support ousxuch heavy s heet :metal not only necessitates a higher cost tor the material because of excessive thickness, but also a higher cost :tor presses' and dies, for the reason that they must be ot heavier and stronger material in order to stamp out and press into the desired shape the material of which the support is made. The upkeepet presses and dies amounts to a considerable sum when large quantities of theI supports are required to be turned out, and the punches and dies. must frequently be repaired and replaced with new ones because ofexcessive wear upon them.

Tt vhas been proposed byv some manufacturers to use a lighter material for the tablet support, and during the process of stamping the same into desired shape, toV provide the tablet supportwith va series of radial corrugations. This method has been found objectionable, and particularly because of the `wear' upon, and necessity for frequent renewal of the tools and dies used in their manufacture.' ll have found. not only from r practical experiment, but from experience,

that a very much lighter material"` may be utilized in the making of. tablet supports and thereby l am not only able to use lighter i and less expensive presses, but lighter and tit less expensive punches and dies, and at the same time the wear upon the punches and dies is very materially lessened, therebygiv-1 ing them llonger life and permltting longer use. withoutrepair or renewal, while at the same time the resulting.' product has all of uit elements ot Vstrength mdf rigidity and Speclcation of Letters Patent. i Pa'iimgd High, p69 19150 Application filed. September 2t, 1914. c Serial No. 863,278. y

when packed for shipment in quantities is much lighter and costs less 'for freight or expressage. There is also a tendency among the manufacturers of phonographs and talkmg machines, toward cheapness in material and the reduction in weight, and a consequent reduction in the Vcost of product. These conditions make it necessary and even imperative for manufacturers to seek ways and means to reduce the cost of construction and weight of material.

u It is therefore the purpose of my invention to accomplish these various' results and' at the same time produce an article ot-I St'rength, rigidity and cheapness.

Tn carryingout my invention, l make 'use of the structure described in the accompanying detailed description and illustrated in the accompanying drawings, wherein- Figure l, is a plan view of a turn table. Fig. 2, is a diametr'ical section of one form ot turn table made in accordance with my improvement'. Fig. 3,- is a similar section of another' form. l*1 ig. 4, is a section similar to Fig. 2, showing the central bearing thimble as an integral piece of metal. ltig. 5, is a section similar to lFig. 3, with the central bearing thimble shown as an integral piece of metal. Fig. 6, is a'det'ached view loit the bearing thimble before assembly with the other parts. Y

VSimilar reference numerals refer @to like parts throughout the'I specicatio'n and drawings.

The turn table as shown in the drawings, must. conformv to the standards already established, and in lmy various forms illustrated, it consists primarily of the Hat metal disk 1, having a central circular depression 2, with a central bearing thimble 3, rigidly secured to the depressed part 2. At the.v cir.- cumference of the disk l, is providedv a downwardly turned annular flange 4f, as shown.l This disk may be of any desired or preferred material, as cold, rolled sheet steel, formed by stampii'ig the same from the raw material. Tn `order to strengthen the tablet vand having a diameter to permit of its forcillll ble insertion within the Harige 4f, of the disk i l, so that its circumference will .bear inthe angle formed byv said llange with the under aeofthe llnftlie'center ot the dished lll@ disk 5, I provide a center bearing thimble 6, with the diametrical slot 7, and having` a central aperture in alinement with the central aperture of 'the bearing thimble 3. The slot 7` is for the purpose of taking over a cross pin in the driving spindle of a talking machine, it being understood that the bearmg thimbles 3 and 6 are designed to t over vsaid spindle.

'In Fig. 3, the upper plate or disk 1, with its depression 2", bearing thimble 3, and iange 4, is identical with that shown in Fig. 2. Instead, however, of making use of the shallow cone disk 5, I substitute for it a deeper and smaller cone as 8, and rigidly secure said cone to the central depressed portion of the disk 1, either by riveting, soldering, brazing, or in any desired orpreferred way. In this case, the central bearing thimble 6, is secured to the central portion of the I(53u38, in alinement with .the bearingthim- In Fig. 4, the general form of the disk is the same as that shown in Fig. 2. In this case, however, I substitute for the two individual bearing thimbles 3 and 6, the central bearing thimble 9, providing such thimble with a shoulder 10, at its lower end for engagement with the central aperture in the disk 5. In this case, as in each of the other cases, the bearing thimble is provided with a cylindrical shoulder at its upper end for engagement with the central aperture in the disk 1. When in place, the metal of the thimble which projects above, the face of the disk, is spun down upon, or riveted over the edge of the metal surrounding the aperture so as to rigidly connect the thimble and disk Y together.

In Fig. 5, I show a structure similar to that shown in Fig. 3, but using a single integral bearing thimble 11. In this case the central part of the cone 8 bears upon the shoulder 12, formed upon the lower end of the thimble, while the upper end 13,'of the l. thimble projects through a slightly smaller be termed a truss structure, I am able to so aperture in the depressed part 2, after which the projecting end 13, of the thimble is spun down or riveted over the edge of the metal surrounding the aperture as hitherto described. j i

In Fig. 6, I have shown a detached thimble with the upper portion 13 extended and prepared to receive the apertured disk 1. l

It will thus be seen that by forming the tablet support of very light material and.

strengthening the same by using what may .strengthen the tablet support as to overcome any objection which might be raised to a support made because of such light and thin material.

.In practice, when the forms illustrated in Figs. 4 and 5 are used, the cylindrical part of the thimble between the shoulder 10 or cure, as above indicated, the margin of the shallow cone 5, or the margin of the deeper cone 8, and the under face of the disk 1, by any convenient or desired means, as by soldering, riveting or brazing. In some cases where using either structures illustrated in Figs. 2 or 4, the downwardly extending flange 4, may be spun down over the margin of the disk 5, thereby rigidly connecting the margins of the said disks.

From the above description, it will be seen that I am able to produce a tablet support or turn table 'for talking machines, much lighter than and yet an article which possesses all the strength and rigidity pf heavier tablet supports now in general use, and I at once accomplish all of the results sought in for the construction of the same.

I claim:

1. In a tablet support for talking ma.

chines, the combination of ,a flat, circular disk having 'a central aperture therein and a dished or cone shaped disk, and means for firmly securing the margin of the latter disk to the under face of the former disk.

2. In a tablet support for talking machines, the combination of a flat, circular disk having a down turned circumferential flange thereon, and a dished or cone shaped disk having its margin rmly secured to said flat disk upon the under face thereof.

3. In a tablet support for talking machines, the combination of a iat, circular disk having a 4central aperture therein, a bearing thimble secured in said aperture and a dished or cone shaped strengthening disk secured at its margin to the under face of said fiat disk.

4. In a tablet support for talking machines, the combination of a fiat, circular disk having a marginal down turned ilange and a central aperture, a cone shaped disk having its margin forced into engagement with said down turned ange, anda bearing thimble firmly secured in the aperture of said fiat disk.

5. In a tablet ,support for talking machines, the combination of a flat, circular disk of very thin sheet metal, a thin metal cone shaped circular disk, and means for rigidly and concentrically connecting the latter disk to said flat disk.

6. In a tablet support for talking mameente ehines, the Combination of a thin, Hat, circu; lar sheet metal disk having a marginal down-turned lange thereon, and a centrak aperture therein, a thin cone shapedfsheetmetal diskhaving a central aperture there- 1n, and a tubular thimble secured to and 'rigidly connecting said disks together.

7. lln a tablet support for talking machines, the combination of a very thin, flat, circular sheet metal disk, having `a downturned marginal flange thereon and a eentral aperture therein, a bearing thimble rigidly secured in Said aperture, and a cone Shaped strengthening disk rmly secured to the under face of said flat disk Within the marginal iiange thereon.,

` 8. In a tablet support for talking machines, disk having a central aperture therein, a cone shaped disk having a central aperture therein, and a tubular bearing thimble secured in said apertures and firmly uniting said disks together with the margin of said cone shaped disk bearing upon the under face of said Hat dis/k.

In testimony whereof, I havevhereunto set my hand this 19th day of Sept., 1914.'

PLINY CATUCCll.

- ln presence of- LOUIS M. SANDERS, NORMAN E, ZUSI.

the combination of a flat, circular

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