US718074A - Elbow for talking-machine horns. - Google Patents

Description

No. 718.074. PATENTED JAN. 13, 1903.

W. BARNES. v I

ELBOW FOR TALKING MACHINE HORNS.

APPLICATION FILED'SEPT. 24. 1902.

K0 MODEL.

p15 "can: min: :0. mom-Luna. msnms'rcu, o. c.

UNITED STATES PATENT OFFICE.

WALTER BARNES, OF TOLEDO, OHIO.

ELBOW FOR TALKING-MACHINE 'HORNS.

SPECIFICATION forming part of Letters Patent a... 718,074, dated January 13, 1903.

Application filed September 24, 1902. Serial No. 124,694. (No model.)

To all whom it may concern.-

Be it known that I, WALTER BARNES, a resident of Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Elbows for Talking- Machine Horns; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to means for connecting the sound-box of a talking-machine to the smaller end of a metal horn, such as generally used in such machines.

The main object of the invention is to provide an improved elbow or body for the purpose mentioned.

In the accompanying drawings, illustrating the invention, Figure 1 is a central longitudinal section of theimproved shoulder. Fig. 2 is an end view thereof looking toward the flaring end. Fig. 3 is a view, on a smaller scale, showing the shoulder in place between a sound-box and a horn.

of the horn will fit into it tightly. Being of The improved elbow l is made, preferably, of medium-grade soft rubber and is formed in one integral body, comprising a tubular part 2, of proper size to receive the projecting tube 3 of a talking-machine sound-box, and the flaring part 4:, preferably decreasing in thickness toward its larger end and adapted to receive snugly within it the smaller correspondingly tapering end of the horn v5. Said elbow also has an inner tubular extension 6, adapted to fit snugly into the inside of said smaller end of the horn. This extension 6 is the important part of my invention. The outer edge 7 of the extension is curved or beveled to insure easy entrance of the end of the horn into the annular groove 8 between parts 4 and 6.

Owing to the forms of parts 4. and 6, the annular groove between them grows narrower toward its bottom, whereby the inserted end rubber, the elbow clings to the horn and prevents the latter falling out. The horn, supported in the elbow, as described, is held by the rubber pressing against it both on its inner and its outer sides, and this lessens disturbing vibrations of the horn, as the inner extension 6 prevents the sound-waves from the reproducer striking the end of the horn. The disagreeable metallic sounds often heard in talking-machines are largely reduced by my improvement.

While the groove described is shown as tapering toward its bottom, this is not essential. The form of the elbow may be varied in shape, but must retain the inner extension adapted to prevent the sound-waves from striking the small end of the horn fitting within the end of the elbow.

Having described my invention, what I claim as new, and desire to secure byLetters Patent, is

1. A sound-boxand horn-connecting elbow one end of which is adapted to receive the tube of a sound-box, the other end being adapted to receive the small end of a horn, said elbow having an inner extension, separated from the horn-receiving portion by an annular groove adapted to receive the smaller end of the horn.

.2. A sound-box and horn-connecting elbow of rubber one end of which is adapted to receive the tube of a sound-box, the other end being adapted to receive the smaller end of a horn, said elbow having an integral inner extension, separated from the horn-receiving portion by a tapering annular groove adapted to receive the smaller end of the horn.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WALTER BARNES.

Witnesses:

CLEM V. WAGNER, L. M. WILLIAMSON.

Images