US431810A

US431810A - Aural attachment for telephone-receivers

Info

Publication number: US431810A
Authority: US
Publication date: 1890-07-08
Anticipated expiration: 1907-07-08

Description

E. G. HESS. AURAL ATTACHMENT FOR TELEPHONE EEcEIVEEs.

No. 431,810. PatentedJ'uly 8, 1890.

um n cer Witnesses UNITED STATES PATENT OFricE.

EDWIN CHARLES HESS, OF MONTREAL, CANADA, ASSIGNOR OF TW'O-THIRDS TO FRANK CAVERHILL, OF SAME PLACE, AND FRANK S. HARRISON, OF

NEWARK, NEV JERSEY.

AU RAL ATTACHMENT FOR TELEPHONE-RECEIVERS.

SPECIFICATION forming part of Letters Patent No. 431,810, dated July 8, 1890. Application filed April 16, 1890- Serial No. 348,265. (No model.)

To all whom it may concern:

Be it known that I, EDWIN CHARLES HESS,

of the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented a certain new and useful Improved Aural Attachment for Telephone-Receivers; and I do hereby declare that the following is a full, clear, and exact description of the same. This invention is intended to provide means whereby the necessity of holding a telephonereceiver in the hand while listening is avoided and all sounds other than that from the receiver are effectually cut off,besides preventing to a large extent complaints as to the indistinction of transmission which in many cases is due not to any fault of the instruments, but deafness on the part of the listener.

The invention consists, broadly speaking, in caps adapted to fit over the ears and a communicating passage between them, one of the caps taking the place of the usual cap, which isscrewed onto the end of the telephone-receiver to hold the diaphragm in place. For full comprehension, however, of the inven- 2 5 tion, reference must be had to the annexed drawings, in which Figures 1 and 2 are views showing the attachment connected with areceiver and arranged in place on the head, and Fig. 3 a

view showing a longitudinal section of the attachment and part of the receiver.

Similar letters of reference indicate like parts.

A is the usual telephone-receiver, and B a 3 5 cap that differs from the ordinary kind, which it replaces, only in that its concave recess is deeper and wider, so as to fit the ear, and that it has a subsiduary opening 13' leading from such recess through a nipple 1), projecting from the side of the cap. Connected with this nipple is a length of tubing C, preferably of the same material (hard rubber) as the cap B, and carrying on its outer end another cap D, also having a perforated nipple D leading to its interior, with which the tubing connects.

I The tubing C is in the shape of a bow to fit over the head and possesses sufficient flexibility to furnish a springiness that will keep it in place on the head and so serve to support the receiver.

The caps, if desired, can be made substantially auriform, as shown in Fig. 2, so as to fit the ears snugly, and, as will be readily seen, are easily interchangeable.

The connection between the tubing and cap B is in the form of aswivel-joint, so that such tubing and the cap D can be turned into the reverse positions shown by dotted lines in Fig. 1.

Supporting the receiver by the head leaves the hands free to take down messages, &c., while both ears being enveloped any foreign sounds are excluded, and should it chance that the listener is troubled with deafness (of which he may not be conscious) in one ear the receiver will not necessarily be blamed, as the sound will be effectually conveyed to the other ear.

What I claim is as follows: 7o

1. The combination, with a telephone receiver-body, of caps having recesses to receive theears of the user, one of such caps being screwed onto said receiver-body and serving to hold the diaphragm of same in place, and a resilient tube having one end connected with the said cap on the receiver and the other end carrying the opposite cap, for the purpose set forth.

2. The combination, with a telephone receiver-body, of caps having recesses to receive the ears of the user and perforated nipples, one of such caps beingscrewed onto said receiver and serving to hold the diaphragm of same in place, a resilient tube carrying on one end the other cap, and a swivelconnection between the opposite end of said tube and the cap connected to the receiver-' body, for the purpose set forth.

Montreal, April 12, 1890.

EDWIN CHARLES HESS.

In presence of- OWEN M. WANE, WM. P. MCFEAT.