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US410305A - Telegrapho phone - Google Patents

Telegrapho phone Download PDF

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US410305A
US410305A US410305DA US410305A US 410305 A US410305 A US 410305A US 410305D A US410305D A US 410305DA US 410305 A US410305 A US 410305A
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circuit
diaphragm
cylinder
graphophone
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42221—Conversation recording systems

Definitions

  • FIG. 1 is a perspective view of two grapho- To the threaded bar a of the graphophone phones in circuit.
  • Fig. 2 is a perspective A are hinged the two metallic arms B 13' View, partly'broken away, of the diaphragms one above the other-insulated from the bar and supporting-arms.
  • Fig. 3 is a section in and each other.
  • the under arm B has atits line 00 00, Fig. 2.
  • Fig. 1 is a perspective view of two grapho- To the threaded bar a of the graphophone phones in circuit.
  • Fig. 2 is a perspective A are hinged the two metallic arms B 13' View, partly'broken away, of the diaphragms one above the other-insulated from the bar and supporting-arms.
  • Fig. 3 is a section in and each other.
  • the under arm B has atits line 00 00, Fig. 2.
  • FIG. 4 is a side view of the end on the under side a metal point or styreproducing-stylus, partly in section. Figs. lus b and on top a carbon contact I).
  • To the 20 5 and 6 are detail views of the transmitting under side of the end of the upper bar B is styli. a metallic point 12 which rests upon a car-
  • This invention relates. to an improvement bon contact b, and to the upper side of this in electric methods whereby the indentations bar 13 is another metal point b, which rests upon the cylinder of a graphophone can be against a diaphragm b carried by this arm 25 reproduced upon another cylinder, and at the B, preferably of gold-beaters skin.
  • the two graphophones are set in motion, the primary circuit at the sending-station being closed and the styli resting on the cylinders.
  • the message is spoken through the mouth-piece against the diaphragm c of the transmitter, and by means of the recording-stylus c the usual indentations are impressed upon the sending-cylinder M.
  • This stylus Z takes up the vibrations and transmits them to the carbon point Z9, where the local circuit is closed and the inductioacnrrents are sent out to the line equal in variation and tension to the primary disturbance.
  • each instrument comprising an impression-cylinder, two styli laterally movable on a single screw, a diaphragm carrying one stylus and an electromagnet upon its opposite side, suitable electric circuits, and gearing connecting the screw and cylinder.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Description

(No Model.)
I 2 sheets-sheet 1. M. WHELESS. TELEGRAPHOPHONE.
Patented Sept. 3, 1889.
atto'pmq u. Prrzns. Phoio-Lilhngnphcr, wman m, u. c.
I UNITED'STATES' PATENT OFFICE.
MALONE WVHELESS, OF NASHVILLE, TENNESSEEASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE WORLD TELEGRAPHONE COMPANY, OF IVEST VIRGINIA.
TELEG RAPHOPHON E.
srnerrrcnrrou forming part of Letters Patent No. 410,305, dated September a, 1889.
Application filed Beptemhor 12, 1888. Serial No. 285,233. (No model.)
To ctZZ whom it may concern: produced upon a graphophone there. In case Beitknown thatI, MALONE VVHELEss,acit-iof the absence of the subscriber, he can on zen of the United States, residing at Nashville, his return obtain the message also, this bein the county of Davidson and State of Tencomes a record which can be filed away for nessee, have inventedaTelegraphophone and future use.
I do declare the following to be a full, clear, In the drawings hereto annexed, the letters and exact description of the invention, such as A A indicate two graphophones-in circuit. will enable others skilled in the art to which This circuit may be a primary or an inducit appertains to'make and use the same, reftion circuit, the latter being preferable, as
IO erence being had to the accompanying drawshown. The devices connected to these grapho- 6o ings, and to the letters and figures of referphonesbeingidenticalthat is, all the graphoence marked thereon, which forma part of phones being constructed alikea descripthis specification. tion of one answers for all. Figure 1 is a perspective view of two grapho- To the threaded bar a of the graphophone phones in circuit. Fig. 2 is a perspective A are hinged the two metallic arms B 13' View, partly'broken away, of the diaphragms one above the other-insulated from the bar and supporting-arms. Fig. 3 is a section in and each other. The under arm B has atits line 00 00, Fig. 2. Fig. 4 is a side view of the end on the under side a metal point or styreproducing-stylus, partly in section. Figs. lus b and on top a carbon contact I). To the 20 5 and 6 are detail views of the transmitting under side of the end of the upper bar B is styli. a metallic point 12 which rests upon a car- This invention relates. to an improvement bon contact b, and to the upper side of this in electric methods whereby the indentations bar 13 is another metal point b, which rests upon the cylinder of a graphophone can be against a diaphragm b carried by this arm 25 reproduced upon another cylinder, and at the B, preferably of gold-beaters skin. To this same time the vocal sounds represented by diaphragm is secured a pipe with an earthese indentations are rendered audible. piece. To the threaded bar a, alongside of The invention consists in placingtwographoarms 13 B, is secured a stem 0, carrying an phones in circuit, so that the vibrations proannulus c, to which is secured a metal dia- 30 duced at one graphophone by the recording phragm c. Sprung diametrically across and stylus moving over the cylinder shall be taken over the annulus and secured thereto is an up by the reproducing-stylus and be rcproarch D. Supported vertically at one side of duced at the other graphophone, and making this arch is the magnet E, held adjustably identical indentations there at the same time thereto by pins e e entering slots d d. On
3 5 be transferred into sound-waves. the under side of the diaphragm c is secured In the use of the graphophone as it is now astylus 0 The annulus c, with its diaphragm, operated sound-waves are converted into inis much larger than the diaphragm b and dentations upon the surface of a cylinder covers the latter. This relation brings the and can be reproduced at pleasure, as is well two styli b and c in almostthe same plane 40 known. and over the cylinder F of the graphophone.
In telephoning as now practiced a serious Upon the diaphragm c is placed the usual defect in the system is, that when a subscriber mouth-piece. (Shown in dotted lines, Fig. 3.) is called up and there is no response the caller The letter M indicates the cylinder of the cannot use the instrument and must wait angraphophone, andm up the usual gear-wheels.
5 other opportunity, and by combining the prin- At each graphophone isv shown a closed pri- 5 ciple involved in these two systems it is posmary circuit 0. p This circuit'when not in use sible by the use of my invention to so connect is kept open by a switch. The two arms B 13' up two graphophones on a telephone-circuit are in the circuit, as clearly shown in Fig. 1, that .not only Will the message he audibly re and the circuit is closed at the metallic and 5o ceived at the receiver, but it will also be recarbon contacts. The primary circuits are provided with the inductive coils G, which are connected by the usual line-wire H and have the grounds I I, the coils of the magnets E being in the inductive circuit. It is evident that the two graphophones must be kept in motion while the message is being transmitted.
To operate the invention the two graphophones are set in motion, the primary circuit at the sending-station being closed and the styli resting on the cylinders. The message is spoken through the mouth-piece against the diaphragm c of the transmitter, and by means of the recording-stylus c the usual indentations are impressed upon the sending-cylinder M. As these indentations pass away from the stylus 0 they come in contact with the reproducing-stylus b. This stylus Z) takes up the vibrations and transmits them to the carbon point Z9, where the local circuit is closed and the inductioacnrrents are sent out to the line equal in variation and tension to the primary disturbance. These currents passing over the line disturb the magnet at the receiving-station, thereby disturbing the diaphragm actuated by the magnet as well as the stylus, which is attached to the under side of it, and the cylinder is indented with indentations equal to the disturbance of the diaphragm. These indentations made upon the receiving-cylinder are identical with those made upon the sending cylinder, one being a duplicate of the other.
As the indentations upon the receiving-cylinder pass away from the stylus 0 they pass under the stylus Z), which disturbs the diaphragm b and this disturbance makes the wave-sounds, which are articulate and audible.
I am aware that it has been proposed to connect a phonograph with an ordinary telephone-circuit, so that the messages received will be recorded as well as heard.
Having described my invention, what I claim 1s 1. The combination of a graphophone with an additional stylus resting in the groove made by the graphophonc-stylus and closely behind said stylus, and electric connections containing contacts varied by the additional stylus and extending to a suitable receiver.
2. In a combined telephone and graphephone, the combination of an impression-cylinder with a diaphragm having a stylus arranged upon one side and an electro-magnet upon the other side arranged in circuit eX- tending from the transmitter to a distant instrument, and an additional stylus controlling the contacts in. aprimary circuit, the secondary of which extends to the receiver of the distant instrument.
3. In a combined telephone and graphephone, the combination of a diaphragm, an impression-cylinder, and a stylus between the diaphragm and impression-cylinder, and an electro-magnet upon the other side of the diaphragm in a circuit with and controlled by the transmitter of the distant instrument, and an additional stylus varying the contact of the electrodes in a circuit extending to the receiver of the distant instrument.
4:. In a combined graphophone and telephone instrument, the combination of an impression-cylinder and a suitable screw-shaft with suit-able gearing for connecting said cylinder to the shaft with a diaphragm carrying one stylus and an additional stylus, both movable laterally by said screw-shaft and proper elect ric circuits.
5. The combination of a pair of combined graphophone and telephone instruments located at different stations, each instrument comprising an impression-cylinder, two styli laterally movable on a single screw, a diaphragm carrying one stylus and an electromagnet upon its opposite side, suitable electric circuits, and gearing connecting the screw and cylinder.
6. The combination of two graphophones, each provided with a diaphragm having a magnet and a stylus and two arms, one above another, one arm having a stylus underneath and a contact-point on top, the other arm having a contact-point underneath and resting on the other contact-point, and a contactpoint on top and a diaphragm against the bottom of which the second contact-point rests, with an electric circuit, the two arms being in circuit, as set forth.
In testimony whereof I affix my signature in presence of two witnesses.
MALONE \VHELESS.
\Vitnesses:
GEORGE E. Novns, M. DORIAN.
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