A Novel Phonograph.
Year: 1899

page_text: A Novel Phonograph.
We, ARTHUR GRELET, Engineer, and LUCIEN VIVES, Manager of the Firm of
La Fauvette, both of 5, Boulevard Poissoniere, Paris, do hereby declare the
nature of this invention to be as follows:
The novel phonograph forming the subject of this invention consists of a
frame on which a shaft connected with a cylinder for the reception of the
cylindrical phonograms is arranged to rotate.
The cylinder shaft runs through a bush, or socket, and rotates betwen two
bearings, one of which is fixed while the other or part of the other, is secured
to a lever or rod which turns on a hinge or pivot and thus enables the cylinder
to be removed from or placed on the shaft.
The rotary motion is transmitted to the shaft by means of a pulley band or
other gearing actuated by an electrical or mechanical motor which may be
arranged in the box or case on which the apparatus rests.
The diaphragm carrier has a translating motion parallel to the generating lines
of the cylinder imparted to it through the medium of a screw parallel to the
shaft of the cylinder and arranged in front of the same, the said screw itself
having a rotary motion imparted to it by a toothed wheel, which is actuated
through an intermediate wheel by a toothed wheel mounted on the cylinder
shaft.
The diaphragm carrier is moved forwards through the medium of a nut on
the screw it is guided by a slide placed at its opposite end and sliding on a
guide rod parallel to the axis of the cylinder, and firmly held by two supports.
Part of the nut is formed on a cam piece which slides on a fixed rod. In
order to release the nut, and to consequently raise the diaphragm, all that is
required is to raise the tail of the cam.
The diaphragm can thus be brought to any point of the cylinder. The
diaphragm carrier is thus guided and moved forward with mathematical precision
and without strain.

page_text: 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:-
The novel phonograph forming the subject of this invention is illustrated in
the accompanying drawing, and consists of a frame a on which a shaft 6 con-
nected with a cylinder for the reception of the cylindrical phonograms is
arranged to rotate.
The cylinder shaft runs through a bush, or socket and rotates at one end
in a fixed bearing e, and at the other end rotates on a conical bearing secured
to a lever or rod f which turns on a ninge or pivot and thus enables the
cylinders to be placed on or removed from the shaft b.
The rotary motion is transmitted to the shaft b by means of a pulley band
and pulley or other gearing actuated by an electrical or mechanical motor
which may be arranged in the box or case on which the apparatus rests.
The diaphragm carrier 9 has a translating motion parallel to the generating
lines of the cylinder e imparted to it through the medium of a screw parallel.
to the shaft of the cylinder and arranged in front of the same, the said screw
itself having a rotary motion imparted to it by a toothed wheel k, which is
actuated through an intermediate wheel by a toothed wheel mounted on the
cylinder shaft b.
The diaphragm carrier is moved forwards through the medium of a nut o
on the screw : it is guided by a slide placed at its opposite end and sliding
on a guide rod s parallel to the axis of the cylinder, and firmly held by two
supports tt.
Part of the nut o is formed on a cam piece which slides on a fixed rod .
In order to release the nut and to consequently raise the diaphragm e all that
is required is to raise the tail of the camp. The diaphragm we can then he
brought to any point of the cylinder d. The diaphragm carrier is thus
guided and moved forward with mathematical precision and without strain.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is:-
A novel phonograph distinguished by the employment of an impulsion screw
arranged parallel to the axis of the cylinder intended to effect the translation of
the diaphragm carrier through the medium of a nut fixed at the extremity of
the said diaphragm carrier, the other extremity being guided by a slide, sliding
on a rod parallel to the impulsion screw, the disengaging of the nut and,
consequently, the raising of the diaphragm being effected by operating a cam
connected with or forming part of the nut substantially as described and illus-
trated in the accompanying drawings.
Dated this 6th day of February 1900.