US500282A - Phonograph - Google Patents

Phonograph Download PDF

Info

Publication number
US500282A
US500282A US500282DA US500282A US 500282 A US500282 A US 500282A US 500282D A US500282D A US 500282DA US 500282 A US500282 A US 500282A
Authority
US
United States
Prior art keywords
recorder
diaphragm
reproducer
phonograph
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US500282A publication Critical patent/US500282A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Definitions

  • the present invention relates to means for forming an operative connection between a phonograph diaphragm and a recorder or reproducer, which connection shall effectively transmit the vibrations due to sound waves or the sound record, but shall allow a movement of the recorder or reproducer independent of the diaphragm under the influence of larger irregularities or eccentricities due to imperfection of the phonogram blank or recording surface.
  • Figure 1 shows a view partially in section of one form of recorder
  • Fig. 2 shows a similar view of a modified form of recorder.
  • 1 is the phonograph shaft, 2 the phonograph cylinder, and 3 aphonogram blank.
  • a mouth piece or tube to which the mouth piece may be connected, below which is a diaphragm 5.
  • a diaphragm 5 At the center of the diaphragm is a magnetic piece or member 6 cemented to or forming a part of the diaphragm.
  • a second corresponding member 7 Below this magnetic piece is a second corresponding member 7, supported on or forming a part of the pivoted recorder arm 8.
  • This arm may be magnetized by means of a coil 9 in circuit with battery 10, or in any other convenient manner.
  • Fig. 2 is shown attached at the center of the diaphragm a coil or solenoid 12, and to the pivoted recorder arm is connected a magnetic core 13.
  • connection described between the recorder or reproducer and the diaphragm is found to faithfully transmit the vibrations due to sound from the diaphragm to therecorder, or in reproducing from the reproducer to the diaphragm, but when said recorder or reproducer is moved more slowly by irregularities or eccentricities of the phonogram blank the magnetic connection yields so that the recorder or reproducer moves independently of the diaphragm. Hence the record or the reproduction is substantially independent of such irregularities.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Description

PHONOGRAPH.
T. A. EDISON.
(No Model.)
awe/M300 $513 4 abhor/14 4 THE NORRIS FEVERS cu, wuToumu. wAsHmcron. n. c.
UNITED STATES PATENT OFFICE.
THOMAS A. EDISON, OF LLEWELLYN PARK, NEW JERSEY.
PHONOGRAPIH.
SPECIFICATION forming part of Letters Patent No. 500,282, dated June 27, 1893.
' Application filed December 3, 1890- Serial No. 373,412. (No model.)
To all whom it may concern:
Be it known that I, THoMAs ALVA EDISON, a citizen of the United States, residing at Llewellyn Park, in the county of Essex and State of New Jersey, have invented a certain new and usefulImprovementinPhonographs, (Case No. 896,) of which the following is a specification.
The present invention relates to means for forming an operative connection between a phonograph diaphragm and a recorder or reproducer, which connection shall effectively transmit the vibrations due to sound waves or the sound record, but shall allow a movement of the recorder or reproducer independent of the diaphragm under the influence of larger irregularities or eccentricities due to imperfection of the phonogram blank or recording surface.
In the accompanying drawings, which illustrate the invention, Figure 1 shows a view partially in section of one form of recorder, and Fig. 2 shows a similar view of a modified form of recorder.
1 is the phonograph shaft, 2 the phonograph cylinder, and 3 aphonogram blank.
4 is the usual mouth piece, or tube to which the mouth piece may be connected, below which is a diaphragm 5. At the center of the diaphragm is a magnetic piece or member 6 cemented to or forming a part of the diaphragm. Below this magnetic piece is a second corresponding member 7, supported on or forming a part of the pivoted recorder arm 8. This arm may be magnetized by means of a coil 9 in circuit with battery 10, or in any other convenient manner. In this form I prefer to connect the pieces 6, 7 by a light spring 11 to supplement the magnetic connection.
In Fig. 2 is shown attached at the center of the diaphragm a coil or solenoid 12, and to the pivoted recorder arm is connected a magnetic core 13.
In the drawings the means for turning the phonogram blank and for feeding the recorder or reproducer lengthwise of the phonogram blank are not shown since they may be of well known construction and are not specifically claimed herein.
The connection described between the recorder or reproducer and the diaphragm is found to faithfully transmit the vibrations due to sound from the diaphragm to therecorder, or in reproducing from the reproducer to the diaphragm, but when said recorder or reproducer is moved more slowly by irregularities or eccentricities of the phonogram blank the magnetic connection yields so that the recorder or reproducer moves independently of the diaphragm. Hence the record or the reproduction is substantially independent of such irregularities.
' Having thus described my invention, what I claim is 1. The combination of a phonograph diaphragm or vibrating body, a recorder or reproducer, the diaphragm and recorder or reproducer being connected magnetically, substantially as described.
2. The combination of a phonograph d aphragm, a recorder or reproducer, the diaphragm and recorder or reproducer being slightly separated but connected magnetically, substantially as described.
3. The combination of a phonograph diaphragm, a magnetic member thereon, a recorder or reproducer and a magnetic member thereon, and in operative relation to the first member, substantially as described.
4. The combination of a phonograph diaphragm having a magnetic member, and a recorder and a reproducer having a magnetic arm, substantially as described.
5. The combination of a phonograph diaphragm, a magnetic member at or near 1ts center, a recorder, a magnetic piece connected thereto, and a spring connecting said diaphragm and recorder, substantially as described.
6. The combination of a phonograph diaphragm, a magnetic portion at or near 1ts center, a recorder having amagnetic arm and means for magnetizing it, and a spring con- .necting said diaphragm and magnetic piece,
substantially as described.
This specification signed and witnessed this 1st day of December, 1890.
THOS. A. EDISON.
Witnesses: A
JOHN F. RANDOLPH, W. PELZER.
US500282D Phonograph Expired - Lifetime US500282A (en)

Publications (1)

Publication Number Publication Date
US500282A true US500282A (en) 1893-06-27

Family

ID=2569116

Family Applications (1)

Application Number Title Priority Date Filing Date
US500282D Expired - Lifetime US500282A (en) Phonograph

Country Status (1)

Country Link
US (1) US500282A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109059A (en) * 1960-10-17 1963-10-29 Koenig & Bauer Schnellpressfab Device for producing halftone patterns
DE202011105764U1 (en) 2010-09-14 2012-01-18 Che-Yuan Chang Shower and bath aids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109059A (en) * 1960-10-17 1963-10-29 Koenig & Bauer Schnellpressfab Device for producing halftone patterns
DE202011105764U1 (en) 2010-09-14 2012-01-18 Che-Yuan Chang Shower and bath aids

Similar Documents

Publication Publication Date Title
US2864897A (en) Universal phonograph pickup head or the like
US500282A (en) Phonograph
US3067295A (en) Stereophonic phonograph pick-up device
US842028A (en) Sound-recording and reproducing mechanism.
US831779A (en) Magnetic sound-record.
US1011322A (en) Method of recording and reproducing sounds or signals.
US705829A (en) Reproducer for sound-records.
US1104182A (en) Sound-box.
US397280A (en) Phonograph recorder and reproducer
US828551A (en) Sound-box for talking-machines.
US741462A (en) Phonograph or graphophone, &c.
US620823A (en) Inocencio andion
US1303183A (en) Henry c
US613670A (en) Leon f
US865435A (en) Reproducer for phonographs.
US891233A (en) Sound-recording apparatus.
US794416A (en) Sound-reproducer.
US394106A (en) Phonograph-reproducer
US500281A (en) Phonograph
US454941A (en) Phonograph recorder or reproducer
US806806A (en) Phonograph.
US1111779A (en) Phonographic sound-box.
US655480A (en) Phonographic reproducing device.
US1127765A (en) Sound-reproducer.
US1071436A (en) Sound-reproducing instrument.