US946014A - Mounting for sound-boxes. - Google Patents

Description

(1. L. 001111111111. MOUNTING FOB SOUND BOXES.

APPLIOU I'IOI FILED IAN.29,1906.

Patented .1111 11, 1910.

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-and useful Improvements in Mountings for-- v sound box, whereby the vibratory action of.

UNITED S ES PATENT OFFICE,

GEORGE L. COLEMAN, OF CAMDEN, NEW.-TEBSIY, ASSIGNOB "1'0 VIC!OB TALKING v -IACHINE COMPANY, A CORPORATION 02 NEW JERSEY.

'noun'rnm ron sommsnoxxs,

To all whom it may concern:

Be it known that I GEORGE L. a citizen of the United States, Camden, in the county of Camden and State of New Jersey, have invented certain new COLEMAN,

Sound-Boxes, of which thefollowing is a full, clear, and complete disclosure. 7 My invention relates to certain improvements in sound. recording and reproducing devices, and'more particularly to that part of the same known as sound boxes.

The object of my invention is to provide a means for mounting a diaphragm inithe sound boxes in such a manner that the volume is greater and quality of the tone is much clearer and more distinct and natural than heretofore rendered.

With this object in view, my invention consists in providing a simple'and efficient-I meansfor securing the diaphragmin the I the diaphragm: is renderedmore eflicient and the diaphragm more sensitive to the action of the sound waves and movement of the .stylus bar. 1

My invention further consists in features of construction "and-manner of operation which will be hereinafter more fully described in the following specification and the accompanying drawing, in which-like reference characters refer to corresponding parts. I I

. In the drawing, Figure 1 is atransverse section of the sound box, showing'the needle andwpart of the stylus bar in elevation; Fig. 2 is an enlarged fragmentary portion of Fig. 1 Fig. 3 is an elevation of one of my gasket ruigs. eferringoto land 2, 1 represents the sound x frame, which is made up of the sectionsl and 2, the cylindrical wall of the latter beingslipped over the cylindrical wall of the former. The section 2 is provided on its interior surface with a step or seat for the reception of one of the rings or gaskets 3. Section 1 has its upper periphery constructed in the form of an annular seat for the reception ofthe other rings or mountings 3. These rings or gaskets are composed of a soft rubber or other yieldingmaterial and may be resilient, so that in their normal condition they are of such a configuration as to conform to their bearing surfaces in the sound box, from which they Specification of fitters rmm.

residing in V sharp or knife-like,

may be removed when Thesaid V v lfatentcd Jan. 11, 1910. f Application filed January 29, 1906. Serial No. 298,878.

ing against their respective seats and their edges oppositely disposed for the purpose of retaining the diaphragm 4 in positlon. Con,-

nected with the diaphragm in any suitable manner is the stylus bar 5, and to the face of section 1 of the box is attached the usual rubber ring 6, within which is the tubular sleeve 7 for attachment to the horn and supporting the arm of the reproducing machine. The oppositely disposed circular edges of the mounting rings 3-3 maybe but I prefer to slightly round or bevel the same. The diaphragm 4 is confined between these circumferential edges, and is in slight contact around that portion of its edges within and adjacent to its periphery. The sections 1 and 2 of the sound box may be so adjusted to each other as to brin the circumferential edges of therings 33 into contact with the diaphragm, according to the tension required.

Although I have described my rings as be ing detachable and having their circumferential edges in contact with the diaphragm,

this arrangement is not essential, as the said yielding portions may be in ral with the sound box, or the circumferentlal edges may be in contact with the said box instead of the diaphragm, provided that thoseparts of the rings between which the diaphragm 1s supported are in contact with that portion thereof which is withinand ad'aoent;to its periphery, and further, I have escribed the annular mountings or rings as triangular in cross section, but the same may be I of any other configuration in cross section,

provided circumferential edges of contact are presented.

It will be seen, from the above description, that the diaphragm is free at its ed sand that the only portions of the same t at are in contact are those that lie immediately between the edges ofthe yieldin rings and by virtue of the yielding action 0 the rings and the circumferential nature of'the contact, the interference with the vibratory action of the diaphragm isreduced to a minimum.-

The above described means for mounting the diaphragm is illustrated in its preferre form, but I do not wish to limit myself to such, as other forms may be employed without departing from my invention as clalmed.

Neither do I wish to be restricted by the terms used to describe the different parts set forth, nor by the exact construction herein illustrated and described, .but reserve the right to utilize any modification or equivalents thereof, provided the same are within the scope of my invention, as pointed out in the appended claims.

Having thus described my invention, what I claim and desire to protect by Letters Patent of the United States is 1. In a sound recording and reproducing machine, the combination of a pair of soft yielding rings, triangular in cross section, with a diaphragm retained between them, the edge of said diaphragm being free.

2. In a sound recording and reproducing machine, the combination with a casing of soft yielding rings, triangular in cross section and oppositely disposed, with a diaphragm retained between said rings,the edge of said diaphragm being free.

3. In a sound box, a pair of soft yielding rin s, each having one face thereof tapered to form an edge and a diaphragm retained between said edges, the edge of said diaphragm being free. 4

4. In a sound box, a pair of soft yielding rings, each having one face thereof tapered to form an edge and its opposite facing flat to conform to a seat, and a diaphragm retained between said rings, the edge of said diaphragm being free. I

5. In a sound box, a pair of yielding rings of soft material each having one face thereof tapering to form an edge and a diaphragm retained between said edges.

6. In a sound box, a pair of yielding rings, made of solid soft rubber or a like composition, each having one face thereof tapered to form an edge and a diaphragm retained between said edges.

7. In a sound box a-pair of rings made of solid soft rubber or a similar composition, and being triangular in cross section, and a diaphragm retained between said rings.

8. In a sound box, a pair of solid soft rings, each having one face thc.eof tapered to form an edge, and a diaphragm retained between said edges.

9. In a sound box, a pair of solid soft resilient rings, each having one face thereof tapered to form an edge and a diaphragm. retained between said edges.

10. A sound box made up insections, one section having an annular seat or shoulder therein and another section having a corresponding seat, a pair of soft yielding rings each having one face thereof tapered to form an edge and its opposite face flat and bearing against one of said seats, and a diaphragm retained between the edges of said rings, said sections being longitudinally slidable with respect to each other.

11. A sound box made up in sections, one section having an annular seat or shoulder therein and another section having a corresponding seat, a pair. of soft rubber rings, each having one face thereof tapered to form an edge and its opposite face flat and hearing against one of said seats, and a diaphragm retained between the edges of said rings, said sections being longitudinally slidable with respect to each other.

12. A sound box made up in sections, one section having an annular seat or shoulder therein and another section having a corresponding seat, a pair of soft solid rubber rings, each having one faeethereof tapered to form an edge and its opposite face flat and bearing against one of said seats, and a diaphragm retained between the edges of said rings, said sections being longitudinally slidable with respect to each other.

13. In a sound box a pair of yielding portions of soft material, each portion being tapered to form an edge and a diaphragm held between said edges.

14L. In a sound box a pair of yielding portions of soft material, each portion being tapered to form an edge, and a diaphragm held between said edges, the edge of said diaphragm being free.

15. In a sound box a pair of yielding portions of soft material and a diaphragm held between the said portions, each portion being substantially V-shaped in cross section and converging toward said diaphragm.

16. In a sound box the combination with a casing'of a yielding tubular extension secured to the rear side thereof and a nonyielding lining in said yielding tubular extension, the inner edge of said lining being in contact with the rear side of said casin and the outer edge of said'lining being flus with the rear face of said extension.

In witness whereof I have hereunto set my hand this twenty-sixth day of January, 1906.

GEORGE L. COLEMAN.

Witnesses:

VVM. EARLY, CHAS. K. -BENNETT.

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