Year: 1898

page_text: Date of Application, 24th Mar., 1898
Complete Specification Left, 28th Oct., 1898--Accepted, 3rd Dec., 1898
A communication by the Firm of JEAN SCHOENNER, of 7, Dammstrasse, Nurem-
berg, in the Empire of Germany, Manufacturers.
f, WILLIAM Phillips Thompson, F.C.S., M.I.M.E., of The Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, 118, New Street, Birmingham, in the County
of Warwick, and 322, High Holborn, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be follows:-
This invention has for its object to simplify the constructive arrangement of
phonographs in such a way that they may be made for toys, that is to say at light
expense. For this object, the two speaking devices employed for receiving and
giving off the conversation, which existed in all the older forms of construction,
are combined into a single diaphragm pin which is immovably fixed on the under
side of the diaphragm. In order that the said diaphragm pin may be utilized
according to requirements sometimes for receiving or recording and sometimes
for delivering or reproducing the conversation, a section of the resonance or
sound tube on the under side of which the diaphragm together with the
diaphragm pin is fixed, is movably arranged and may be turned to about 180°.
By this means the diaphragm pin is brought into two different positions in such
a way that it may serve as a receiving or recording pin in the one position and
as a delivering or reproducing pin in the opposite position when turned about
180°. By giving the pin a suitable form and arrangement as well as by a
judicious selection of its inclination relative to the revoluble section of the sound
tube the result is attained that the diaphragm pin as will be hereafter explained
assumes each time the necessary position relative to the phonograph cylinder
as is requisite on the one hand for the correct receiving and on the other hand
for the clear reproduction of the speech.
The spindle of the phonograph cylinder is mounted at both ends in bearings
and has one end screw threaded to engage an internal thread in one of the bear-
ings by means of which the phonograph cylinder is slowly displaced in an axial
direction upon the spindle being turned by a handle. The sound or resonance
tube serving for receiving and giving off the speech and the speaking appliances
are fixed on a frame and during the reception of a speech the sound travels
through the sound tubes to the diaphragm box and sets in vibration the diaphragın
which is arranged on the under side of said box. On this diaphragm there is
fixed a diaphragm pin, the point of which encounters the upper surface of the
phonograph cylinder and thereby according to the vibrations of the diaphragm
certain impressions on the cylinder are made in the ordinary way.
The special arrangement which renders it possible to utilize the same diaphragm
pin both for receiving and also for reproducing the speech consists as follows:-
The said pin is flat shaped and has a T-shaped section, the upper part serving
for attaching the pin to the diaphragm. The lower edge of the pin is so shaped
that one corner forms a point and is therefore suitable for reproducing speech,
whilst the other corner is formed as a graver of a suitable form for impressing
the conversation.

page_text: According to requirements this diaphragm pin may be brought into the position
for receiving or giving off a conversation by means of the following arrange-
ment:
It is fixed by its upper part on to the glass diaphragm which is clamped on to
the bottom of the diaphragm box between two indiarubber rings. In the position
for reproducing speech, the diaphragm pin has its point resting on the phono-
graph cylinder. In order that the other corner of the pin may be brought into
contact with the phonograph roller for the purpose of recording a speech, the
diaphragm box is not directly attached to the hinged part of the sound tube but
to a tube which is loosely movable within a socket or tube on the same and pro-
jects from the latter at the top. The common axis of these two pipes is inclined
to a given angle a from the vertical axis of the diaphragm box and the diaphragm
pin. The movable tube is prevented from falling out of the socket tube by means
of a pin which projects at both sides at the upper end and engages in a groove
formed on the upper edge of the socket tube. By this means the position of
the movable tube, diaphragm box and diaphragm pin is fixed. When the pin
is to be brought into the receiving or recording position it is only necessary to
turn the movable tube within the socket tube to 180° so that the fixing pin again
rests in the slot or groove. By this means the axis of the diaphragm box comes
into the position in which it together with the diaphragm pin encloses an angle
equalling 2 a with a vertical. Simultaneously the corner of the diaphragm pin
which serves for recording speech comes in contact with the phonograph cylinder
and in consequence of its inclined position assumes a suitable position for record-
ing the speech or sound. The movable tube which is revoluble in the socket
tube must of course be provided with two side slots lying diametrically opposite
one another in order to allow the sound waves from the sound tube to pass through
to the diaphragm at each of the two positions.
In order to regulate the clearness of the speech when reproducing a conversi..
tion the horizontal part of the sound tube is arranged telescopically extensible
so that the course which the sound waves describe within the sound tube may he
increased or diminished. In order to exactly regulate this, a spring is arranged
within the tube sections, which spring tends to force apart the two sections, and
a screwed nut is placed on a threaded bolt which runs right through the tube
sections whereby the latter may be telescopically adjusted against one another by
simply turning the said nut.
Dated this 23rd day of March 1898.
A communication by the Firm of JEAN SCHOENNER, of 7, Dammstrasse, Nurem-
berg, in the Empire of Germany, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester,
both in the County of Lancaster, 118, New Street, Birmingham, in the County
of Warwick, and 322, High Holborn, in the County of Middlesex, Civil
Engineer, 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 has for its object to simplify the constructive arrangement of

page_text: onographs in such a way that they may be made for toys, that is to say ang
pense. For this object, the two speaking devices employed for receiving and
ving off the conversation, which existed in all the older forms of construction,
e combined into a single diaphragm pin which is immovably fixed on the under
de of the diaphragm. In order that the said diaphragm pin may be utilised
cording to requirements sometimes for receiving or recording and sometimes
r delivering or reproducing the conversation, a section of the resonance or
und tube on the under side of which the diaphragm together with the
aphragm pin is fixed, is movably arranged and may be turned to about 180°.
y this means the diaphragm pin is brought into two different positions in such
way that it may serve as a receiving or recording pin in the one position and
s a delivering or reproducing pin in the opposite position when turned about
80°. By giving the pin a suitable form and arrangement as well as by a
udicious selection of its inclination relative to the revoluble section of the sound
ube the result is attained that the diaphragm pin as will be hereafter explained
assumes each time the necessary position relative to the phonograph cylinder.
as is requisite on the one hand for the correct receiving and on the other hand
for the clear reproduction of the speech.
The arrangement is shown in the accompanying drawings, in which,
Figure 1 is a side elevation; and
Figure 2, an end view of the toy as a whole; whilst
Figures 3 to 6 are views on an enlarged scale of some of the details of the
apparatus.
The spindle a of the phonograph cylinder w is mounted at both ends in bear-
ings and has one end screw-threaded to engage an internal thread in one of
the bearings by means of which the phonograph cylinder is slowly displaced in
an axial direction upon the spindle being turned by a handle k. The sound or
resonance tube serving for receiving and giving off the speech and the speaking
appliances are fixed on a frame g and during the reception of a speech the sound
travels through the sound tubes 2 to the diaphragm box m and sets
in vibration the diaphragm which is arranged on the under side of said box.
On this diaphragm there is fixed a diaphragm pins the point of which encounters
the upper surface of the phonograph cylinder and thereby according to the vibra-
tions of the diaphragm certain impressions on the cylinder are made in the
5 ordinary way.
The special arrangement which renders it possible to utilise the same
diaphragm pin s both for receiving and also for reproducing the speech is shown
in Figures 3-5 and consists as follows:-
The said pin which is shown separately on an enlarged scale in Figure 6 is
10 formed as a bent double pin, the upper part serving for attaching the pin to the
diaphragm. The pin s is so shaped that one corner 2 forms a rounded point and
is therefore suitable for reproducing speech, whilst the other corner is formed
as a graver of a suitable form for impressing the conversation on the phonograp
cylinder.
45
According to requirements this diaphragm pin may be brought into the positio
for receiving or giving off a conversation by means of the following arrange
ment:-
It is fixed by its upper part by means of a U shaped bridge piece s¹ held b
means of two fastening pieces on to the glass diaphragm which is clamped
50 to the bottom of the diaphragm box m between two indiarubber rings m² m
By means
In the position for reproducing speech, shown in Figure 4, the diaphragm p
has its rounded point 2 resting on the phonograph cylinder w.
the arrangement shown in Figures 3-5 the pin may be brought as desired in
the reproducing or the recording position. In order that the other corner s
55 the pin may be brought into contact with the phonograph roller for the purp
of recording a speech, the diaphragm box m is not directly attached to the hing
part of the sound tube but to a tube which is loosely movable within

page_text: socket or tube on the same, and projects from the latter at the top. The
common axis x.x of these two pipes is inclined to a given angle A from the vertical
axis y y of the diaphragm box and the diaphragm pin. The movable tube 5 is
prevented from falling out of the socket tube 4 by means of a pin which pro-
jects at both sides at the upper end v¹ and engages in a groove formed on the
upper edge of the socket tube By this means the position of the movable
tube, diaphragm box m and diaphragm pin s is fixed. When the pin is to be
brought into the receiving or recording position it is only necessary to turn the
movable tube within the socket tube to 180° so that the fixing pin again
rests in the slot or groove. By this means the axis y y of the diaphragm box
comes into the position shown in Figure 5 in which it together with the
diaphragm pin s encloses an angle such as B. Simultaneously the corners of
the diaphragm pin which serves for recording speech comes in contact with the
phonograph cylinder and in consequence of its inclined position assumes a suit-
able position for recording the speech or sound. The movable tube which is
revoluble in the socket tube + must of course be provided with two side slots e¹
and lying diametrically opposite one another in order to allow the sound waves
from the sound tube to pass through to the diaphragm at each of the two
positions.
A simple geometrical calculation shows that on the rotation of the tube 5
to 180° the point 3 only comes in contact with the phonograph cylinder when
the common axis of rotation of the tubes and coincides with the mean
verticals at a connecting line 53 3.
In order to regulate the clearness of the speech when reproducing a conversa-
tion, the horizontal part 2 of the sound tube, as shown in Figure 3, is arranged
telescopically extensible in the tube r¹, so that the course which the sound waves
describe within the sound tube may be increased or diminished. In order to
exactly regulate this, a spring f is arranged within the tube sections r¹ and
which spring tends to force apart the two sections, and a screwed nut b' is placed
on a threaded bolt which runs right through the tube sections pl 2, whereby
the latter may be telescopically adjusted against one another by simply turning
the said nut.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is:-
1. A phonograph suitable for a toy characterised by the speaking devices
employed respectively for recording and reproducing the conversation being
combined in a single diaphragm pin (s) which is mounted on the underside of
the diaphragm (m) and together with the diaphragm box (m) may be turned
on an inclined axis ( a) in such a way that the diaphragm pin, in one position
of the tube carrying the diaphragm (75) encounters the phonograph cylinder (w)
with one point (2) and therefore acts as a reproducing pin, and in the other
position when turned 180° to its former position encounters the cylinder with
its other point (s) which resembles an engraving tool and thus serves for record-
ing sounds, substantially as herein before set forth.
2. A form of construction of the phonograph hereinbefore described, charac-
terised by two cylindrical sound tubes (3 and 7) which telescope one in the other
being arranged axially adjustable by means of a spring (f) and regulating
nut (6) with the object of enabling the clearness of the speech reproduced to be
regulated substantially as described..
Dated this 27th day of October 1898.
WM. P. THOMPSON & Co.,
Agents.