An Ear Piece for Telephone Receivers and the like.
Year: 1896

page_text: Date of Application, 19th June, 1896-Accepted, 22nd Aug., 1896
COMPLETE SPECIFICATION.
An Ear Piece for Telephone Receivers and the like.
I, GUSTAV DUBBERT of 35 Potsdamer Strasse, Berlin, Germany, Decorator,
do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention relates to a hygienic ear piece for telephone receivers and such
like. The ear piece is made of metal, wood, vulcanized indiarubber, or other
suitable material and has, on account of its exchangeability, several important
advantages.
The invention is illustrated on the accompanying sheet of drawings, whereon :-
Fig. 1 is a view of the whole telephone receiver the ear piece being shown partly
in section and partly in elevation.
Fig. 2 is a view of the ear piece.
Fig. 3 is a plan view of the receiver without the ear piece.
Referring to the drawings:-
To the ordinary receiver frame a are attached several fasteners or clips 6 bent
at right angles and connected to spiral springs c whose free extremities are hooked
to eyelets e fitted in a ring d to which latter is secured an ear piece f¹ open at f
and provided with a funnel g. The spring attachment secures the ear piece to and
holds it in proper position in the receiver.
The funnel g is of such length and shape, as shown, that it rests against the
usual vibrating diaphragm g whereby the sound is concentrated or collected só as
to increase the distinctness of the sounds.
The ear piece f¹ is circular in shape at its upper end and has fitted in it a ring i
of elastic material. The ring i is held in place by the grooved rim h.
The advantages of the device, are:-
1st. Exchangeability.
2nd. The elastic ring i closes in the sound so that people in the vicinity of the
telephone cannot hear the conversation.
3rd. The device or ear piece can be removed and carried in the pocket and be
applied wherever required, such as, for example, in post offices, railway stations, or
telephone call offices, thereby supplying a long felt want.
4th. The device affords great protection against the propagation of ear diseases.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
consider novel and desire to claim is :-
1. An exchangeable ear piece capable of being attached to telephone receivers,
characterized by a concave plate f¹ made with a central opening and provided with
a grooved rim h into which an india rubber or other elastic ring i is fitted, which,
when the device is in use, is pressed tightly against the side of the head,
substantially as and for the advantages herein before set forth.
.
2. The combination with the ear piece, as claimed in Claim 1, of the funnel g
fitted in the opening f of the concave part f1 for the purpose of concentrating the
sound, substantially as herein before described and shown on the drawings annexed.

page_text: 3. The combination with the ear piece, as claimed in Claim 1, of the attachment
device consisting of the clips b and springs c, substantially as hereinbefore described
and shown on the drawings annexed.
Deted this 16th day of June 1896
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.