US722776A - Sound-reproducer. - Google Patents

Description

PATENT-BID MA 17, 1903.

V W. TURES. SOUND RBPRODUGER. 1

APPLICATION FILED JUNE 13,1902".

UNITED STATES WILLIAM TUBES, oF cRANviLLniLLmoIs, ASSIGNOR OF lNE-HALF To EDGAR DUNHAM AND R. B. STRUTHERS, 0F PRINCETON; ILLINOIS.

souNo- EPRooucER.

SPECIFICATION forming partof Letters Patent No. 722,776, dated lliarch 17, 1903. A Application filed June 13,1902. Serial No. 111,488. (No model.)

To all whom it may concern..- Be it known that I, WILLIAM TUBES, a citizen of the United States, residing at Granville Illinhis, have'invented a certain new and useful Improvement in Sound-Reproducers, of

which the following is a specification;

My invention relates to sound-reproducers, such as are used in connection with talkingmachines. The particular form which I have shown is of course only one. of many types or shapes in which my device could be produced. Ihave shown this single form to illustrate my idea.

Figure 1 shows a plan view of the reproducer with a portionof the record beneath the same. Fig.2 is an inverted plan view. Fig. 3 is a cross-section on line 3 3,'Fig. 2.

Like parts are indicated by the same letter in all the figures. v

.A is the horn; B, the connecting-piece; O, the standard on which the.reproducer'is supported.

D is the common or trunk sound-transmit ting way.

E, E, E and E are branch sound-transmitting ways which open into the trunkway.

F is a plate on which the several parts are properly mounted.

G G G are diaphragms, each in a shallow.

cup like part H, mounted on the plate F. To the center of each is secured the piece J, to which is pivoted the arm J and this arm is attached to the tip J on the post J To this tip is attached the bearing-point J ,which engages the record. The post J 3 at its inner end is secured to a piece K, similar to the piece J, which is attached to the inner diaphragm M in the shallow cup-like part N, which is secured also tozthe plate F and to the plate 0. The parts are attached together as indicated, so that they are brought in proper relation, so that each diaphragnris controlled by the action of the point J and through the medium of the several arms J post J and pieces J J and K.- The record is shown at P. Mounted on the body or plate F are the pivoted links B. R, each preferably carrying at its outer extremity a weight 8 S. These links can be swung around on their in the oounty-otPutnam and State of pivots, so as to adjust the weight inany de sired manner. 3

' The use and operation of my invention wil; be readily understood by those at all familiar with the art. I use a single point'orpin,

and which travels in-a. groove on the record,

It is arranged on a post mounted, preferabiy,'--

, which may be of any desired, shape 'or'tfsiz'e on the center of a diaphragm, which-is pifef erahly mounted in a dilferent from 'theplaneof the other diaphragms. 'There is then 'a series of diaphragm's, preferably three gronped about the post, and to each of these a preferably cen-I I from which leads an tral attachment is made, 7 arm on the post. Thus all thediaphr'agms are controlled from a' single point andin this particular construction from a single post.

Each diaphragm is associated with a sound-f transmitting. way, and these several minor plane parallel to but.

ways open into the common'trnnkway which leads to the horn.

The several parts may be greatly altered I and varied in construction, proportion, POSlr 'tion, and relation without departing from the spirit of my invention, and I do not, therefore, wish to be limited to the precise form and construction shown, but desire my illustration to be taken as diagrammatic.

I claim-- A sound-producer comprising a series of diaphragms arranged in close proximityto each other and in the same plane, with a single diaphragm arranged in close proximity thereto but in a diaphragms parallel tral' post mounted on said single diaphragm and proceeding up between the other diaphragms, laterally-projecting arms lying in a plane parallel to the diaphragms and attached to said post at one end and at the outer end each to a post on one of said group diaphragms and to a point associated with said central post, the system of arms and posts attached only to such diaphragms.

JOHN G. PLETscn, F. G. TAYLOR.

difierent plane, all of said with each other, a cen-

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