US797516A - Sound-reproducer. - Google Patents

Description

No. 797516. PATENTED AUG. 15, 1905. A. L. IRISH,

SOUND REPRODUOER.

APILIGATION FILED MAYZ, 1904.

W Z "L Zijfi JA/mvrm;

Muff Ema/z UNITED STATE PATENT OFFICE.

ALBERT L. IRISH, OF TOLEDO, OHIO, ASSIGNOR TO THE TALK-O-PHONE COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

SOUND-HEPRODUCEH.

Specification of Letters Patent.

Patented Aug. 15, 1905.

Application filed May 2,1904:- Serial No. 205,881.

To all whom, it may concern:

Be it known that I, ALBERT L. IRISH, of Toledo, county of Lucas, and State of Ohio, have invented certain new and useful Improvements in Sound-Reproducers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form part of this specification.

My invention has reference to a sound-reproducer for talking-machines; and it has particular reference to improvements in the details of construction whereby the various parts may be assembled with increased facility and with a greater degree of precision than has been attained heretofore in the art.

In carrying out my invention I provide means whereby the pivoted arm of the reproducer, adapted to connect with the diaphragm of the instrument, may be turned upon its pivotal connections completely out of the way of the operator while the diaphragm is being placed in position or is being removed therefrom for the purpose of effecting repairs. By means of my improved construction the pivoted arm may be effectively adjusted upon its pivots and its proper alinement for connection with the diaphragm insured before its final connection therewith is accomplished.

In the construction of my reproducer I have entirely eliminated the employment of springs of any character whatever, the resulting construction comprising a minimum number of parts and combining simplicity, durability, and effectiveness.

In the fulfilment of my invention I employ the novel combination, arrangement, and details of construction hereinafter shown, described, and claimed.

In the accompanying drawings, illustrative of my invention, Figure 1 is a front face view of a sound reproducer embodying my improved construction. Fig. 2 is a rear view of the same. Fig. 3 is a transverse section thereof.

Referring to the details of construction, 1 indicates the shell of the reproducer, adapted to hold the mica disk or diaphragm 2 about its marginal edges in the usual manner, the

port the same in proper position. The diaphragm is held in contact with the shoulder by means of a split ring 4:, adapted to be forced into the shell and by its resiliency engage the inner walls thereof.

5 is the usual hollow cylindrical extension upon the shell, adapted to connect with the horn of the talking machine. Projecting outwardly at one side of the shell and extending beyond its periphery are two parallel supports 6 and 7, disposed apart and adapted to pivotally support an arm 8 between them. The means for pivoting the arm comprise conically-pointed screws 9, extending through the supports 6 and 7 and arranged in line with each other, with the pointed ends projecting into the space between the supports, and oppositely-disposed extensions or trunnions 10 upon the arm 8, provided with conical recesses adapted to receive the pointed ends of the screws 9.

11 represents lock-nuts upon the screws 9, adapted to contact with the outer faces of the supports 6 and 7 and lock the screws against rotation after they have been properly adjusted.

12 is a rearwardly-extending socket integral with the arm 8, the same being provided with the usual axial perforation and set-screw to secure the usual pointed pin in position therein.

13 is an inwardly-extending recess in the shell between the arms 6 and 7, adapted to permit the unobstructed turning of the arm 8 upon its pivotal connection at right angles to the plane of the diaphragm to permit the arm to assume a position perpendicular to the diaphragm.

The advantages of my improved construction will be apparent upon assembling the various parts in proper adjusted relation to each other. In performing this operation the arm 8 is mounted between the extended supports 6 and 7, the same being properly adjusted by manipulating the pointed screws 9, the nuts 11 being then turned to lock the screws against rotation. When thus supported, the arm 8 may be readily swung about upon its pivotal connections in a plane transverse to the plane of the diaphragm, taking the position in full lines, Fig. 3. The diaphragm may now be placed in position in the initial assembling of the parts, or the same may be conveniently removed should it become shell being provided with a shoulder 3 to supl necessary to replace the same. The placing of the diaphragm in position is accomplished Without in the least interfering With the adjustment of the arm 8. It is to be observed that the pivoted arm 8 may be adjusted in a transverse direction upon its pivotal connection by manipulating the screws 9 so that the proper registry of the free end of the arm with the center of the diaphragm is readily accomplished, the connection With the diaphragm being usually effected by providing a central aperture therethrough through Which a screw 14: engages the end of the operating-arm.

It Will be seen from the foregoing description that a sound-reproducer constructed in accordance therewith will be extremely simple, that the parts thereof may be readily adjusted with relation to each other, and that the placing or replacing of the diaphragm is accomplished With facility and despatch and Without disturbing the adjustment of the other parts of the instrument.

Having described my invention, What I claim, and desire to secure by Letters Patent of the United States, is

In a sound-reproducer, a shell provided with extended parallel supports and inclosing a diaphragm, ad justing-screws having cone-shaped ends extending inwardly from said supports, and an arm connected at one end With the diaphragm and provided on opposite sides With recesses adapted to receive the cone-shaped ends of the adj Listing-screws, said shell having an inwardly-extending recess between the parallel supports to permit said arm to be turned to assume a position perpendicular to the diaphragm substantially as described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two Witnesses.

ALBERT L. 'lRISH.

WVitnesses: V

D. B. Po'r'rs, CARL H. KELLER.

Images