US1084571A - Talking-machine. - Google Patents

Talking-machine. Download PDF

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Publication number
US1084571A
US1084571A US68865112A US1912688651A US1084571A US 1084571 A US1084571 A US 1084571A US 68865112 A US68865112 A US 68865112A US 1912688651 A US1912688651 A US 1912688651A US 1084571 A US1084571 A US 1084571A
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Prior art keywords
disk
stylus arm
sound
bit
stylus
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US68865112A
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Matthew B Claussen
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MASTERPHONE Corp
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MASTERPHONE CORP
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Definitions

  • My invention relates to the reproducing apparatus of talking machines and comprises a modicationof theinvention illus'- trated and-z described in my pending application Serial Np. 670,146, filed January 9, 1912.-
  • the present apparatus is designed -especially' to coperate 4with records having Agrooves of uneveny depth, the sound waves being recorded in the bottom of said grooves soundbox adapted for useon cylindricalsound records.
  • Fig. is-an ⁇ enlarged detail cross section ofthe disk which formsthe novel feature of my invention.
  • Fig. 3 is a similar View. of a modification, and Fig. 4
  • the sound box 1 has the diaphragm 2 mounted' therein-.in the usual-manner.
  • 6l is a we1ght pivoted to the sound boXat Zand provided .with a lug S which has a pivot 9 engaging the slot shown in' the stylus arm or lever 3.
  • a lug S which has a pivot 9 engaging the slot shown in' the stylus arm or lever 3.
  • pin 10- which proJects downwardly into the thickened portionl or hub 12 formed-at the centerof the thin disk 11,- V
  • This pin 10 may be'provided vwith screw thread, 'as shown in Fig. 2, so that the disk may be screwed onto it or it may be 'given a slight taper and forced by pressure into the hub 12, asindicated in Fig.' 3.v
  • 13 is a* bit of highly refractoryA material I such as agate or sapphire, whichy has onel end shaped to litv into thesound groove on the record: tablet 14, while its other end is eltherV threaded' or tapered or otherwise shapedto form a Arigid connectionwith the under portion ofthe hub;12 of the Adisk 1l.
  • highly refractoryA material I such as agate or sapphire
  • the above described apparatus is adapted for use with cylindrical recordsV of the kind used onthe standard Edison. phono# graph ⁇ .. 'Y In Fig. 4 I have shown an apparatus designedto-be usedwith disk records in'whieh the sound box 15 is carried o n the end of the tone arm 23 in an inclined position and has ythe'fusual diaphragm 16 and stylus arm 17' Patented Jan. 1,3, 1914.'
  • the stylusarm is pivoted to Athe soundgboXl rat 18 and has the usual socketand coperating set screw 24'for holding the needle or other terminal piece which directly engages the sound record.
  • the disk record having a sound groove of uneven depth therein with4 which seund l groove the reproducer point 22 engages;
  • the essential feature is that a disk of v ibratablel material shall be rigidly attached to thepointlo'f the reproducen which engages thel record and be substantially parallel to the's'urface of the sound recordat and near the point of'contact between' the reproduc'er and therecord;
  • the-disk is substantially parallel 4withjthe flat disk record 25.
  • the disk is substantiallyl parallel withthat portion o f the surface ofthe cylindrical that is to say ⁇ it is substantially. parallel vto a plane which would be tangent tothe vcylinder at that point.' x
  • the advantages of the invention consist in the greatly increased volume of sound reproduced and the more clear and accurate reproduction of the tone qualities, articulation, &c.
  • a 4talking machine the combination with a stylus arm of a freely vibrating sound reproducing disk attached to the end thereof, and a bit of refractory material shaped to engage the groove in the sound record on said disk, the said disk having a -diameter many times that of the-stylus arm or bit of refractory material. and a thickness considerably less than said diameter of d the stylus arm or bit or refractory material.

Description

4nnrrnn STATES PATENT ormon MATTHEW 13. oLAUssEmor NEwYonmN.' Y., AssIeNon, BY MEsNE .assrerNiunN'irs,r
To THEMASTERPHONE conroRATIoN,
A CORPORATION or. NEw'YoRK.
TALKING-MACHINE.
Specification of Letters Patent.
Appncatm l'e'd Aprn's, 1912. serial-No. 688,651.
To all @717mm t may concern.'
Be it' known that I, MATTHEW B. CLUS- sEN', a citizen of the United States of America, residing at New York city, borough of Manhattan, county and State of New York,
have invented certain vnew and useful Imf provements in TalkinglMa'chines, of' which 'the following is a specification.
' My invention relates to the reproducing apparatus of talking machines and comprises a modicationof theinvention illus'- trated and-z described in my pending application Serial Np. 670,146, filed January 9, 1912.-
The present apparatus is designed -especially' to coperate 4with records having Agrooves of uneveny depth, the sound waves being recorded in the bottom of said grooves soundbox adapted for useon cylindricalsound records.- Fig. is-an` enlarged detail cross section ofthe disk which formsthe novel feature of my invention. Fig. 3 is a similar View. of a modification, and Fig. 4
shows the modification adapted foruse on disk records having grooves of uneven depth.
Throughout the drawings likereference characters indicate like parts.
Referring to Fig. 1, the sound box 1 has the diaphragm 2 mounted' therein-.in the usual-manner.
3 is al stylus arm or lever pivoted at 5 to the lug 4 projecting downward from the center of the diaphragm 2.
6l is a we1ght pivoted to the sound boXat Zand provided .with a lug S which has a pivot 9 engaging the slot shown in' the stylus arm or lever 3. In the end of the stylus arm is ltherigidly fastened pin 10- which proJects downwardly into the thickened portionl or hub 12 formed-at the centerof the thin disk 11,- VThis pin 10 may be'provided vwith screw thread, 'as shown in Fig. 2, so that the disk may be screwed onto it or it may be 'given a slight taper and forced by pressure into the hub 12, asindicated in Fig.' 3.v
13 is a* bit of highly refractoryA material I such as agate or sapphire, whichy has onel end shaped to litv into thesound groove on the record: tablet 14, while its other end is eltherV threaded' or tapered or otherwise shapedto form a Arigid connectionwith the under portion ofthe hub;12 of the Adisk 1l.
vThis bit of sapphire therefore'serves as the point of the stylus 'as a whole.
.The above described apparatus is adapted for use with cylindrical recordsV of the kind used onthe standard Edison. phono# graph`.. 'Y In Fig. 4 I have shown an apparatus designedto-be usedwith disk records in'whieh the sound box 15 is carried o n the end of the tone arm 23 in an inclined position and has ythe'fusual diaphragm 16 and stylus arm 17' Patented Jan. 1,3, 1914.'
connected directly-thereto. The stylusarm is pivoted to Athe soundgboXl rat 18 and has the usual socketand coperating set screw 24'for holding the needle or other terminal piece which directly engages the sound record.
- '191s a disk 'Similar to that previously de: scribed which is cemented or otherwise fastened to 'the properly prepared and'shaped face ofthe shank piece 20 which is adapted to -have its' other end inserted in the socket inthe end of the stylus arm, 17. p other and under side of the disk is cemented a block 21 in which is set -a reproducing point 22 which as before consists of a bit of highly refractory material such as sapphire or the, like. lThe shank 20, the disk 19 and the block 21 are cemented together to formone rigid unitary structure.
25 is the disk record having a sound groove of uneven depth therein with4 which seund l groove the reproducer point 22 engages; In all forms of the invention the essential feature is that a disk of v ibratablel material shall be rigidly attached to thepointlo'f the reproducen which engages thel record and be substantially parallel to the's'urface of the sound recordat and near the point of'contact between' the reproduc'er and therecord; In the construction shown in Fig. 4 the-disk is substantially parallel 4withjthe flat disk record 25.' In the form shown in Fig. 1,
,the disk is substantiallyl parallel withthat portion o f the surface ofthe cylindrical that is to say `it is substantially. parallel vto a plane which would be tangent tothe vcylinder at that point.' x
In operation, the rotation of the record On the -.recordin contact with the reproducing point,
causes up and doivn vibrations of the stylus point which are transmitted in each case through the stylus arm to the diaphragm in the usual Way. At the same t-ime the vibmtions so impressed upon the stylus as a. Whole are transmitted to the disk 11 or i9 as'the case may be. This disk may be made of any reasonably dense and hard material Which Will vibrate satisfactorily. Met-al may be used or hard fiber or even parchment, but as at presentadvised, I prefer to use. Celluloid and generally speaking find that disks of non-metallic material give purer reproductions of sound than metallic disks. While disks of different thickness and diameter may be employed.l I obtain good results with a celluloid disk about 20/1000 of an inch thick and two inches in diameter.
With many sound records the best results are obtained with a disk of 155/1000 of an inch in thickness/ In all casesa very thin disk should be employed of a thickness considerably less than the diameter of the stylus.
The advantages of the invention consist in the greatly increased volume of sound reproduced and the more clear and accurate reproduction of the tone qualities, articulation, &c.
Various changes could be made in the details of construction here shown Without departing from the principle of the invent-ion so long as the stylus arm or lever is rigidly attached to one side of the disk and the reproducing point is rigidly attached to the other side of the disk.
Having, therefore, described my invention, I claim:
i. In a 4talking machine, the combination with a stylus arm of a freely vibrating sound reproducing disk attached to the end thereof, and a bit of refractory material shaped to engage the groove in the sound record on said disk, the said disk having a -diameter many times that of the-stylus arm or bit of refractory material. and a thickness considerably less than said diameter of d the stylus arm or bit or refractory material.
2. In a talking machine the combination with a stylus arm of a. vthin disk of non-' metallic material with a thickened portion at the center, and a jewel shaped to engage the O'roove in the sound recordset in one side of tnhe thickened portion of the disk, the end of the stylus arm being attached to the other side of the thickened portion of the disk.
3. In a talking machine the combination with the stylus arm of a freely vibrating sound reproducing disk of non-metallic material tofone side of which the end of the 'stylus arm is connected, and a bit of fractory material shaped to engage the groove in the sound record attached to the other side of the disk, said disk having a diameter many times that of the stylus arm o; bit of refractory material, and a thickness considerably less than said diameter of the stylus arm or bit of refractory material.
4. In a talking machine the combination with a stylus arm of a disk'of non metallic material to one side of lwhich the end of the stylus arm is connected and a bit of refractory material shaped to engage the groove in the sound record attached to the other side 0f the disk, the points of both said at' tachments being near the center of the disk and said disk being built up at the points of attachment to an increased thickness.
5. In a talking machine the combination with a stylus arm of a thin disk of Celluloid attached to the end of the stylus arm and a bit of refractory material shaped to engage the groove of the sound record attached t0 the other side of the disk.-
6. In a talking machine the combination With a stylus arm of a thiii disk of Celluloid attached to the end of the stylus arm and a bit of refractory material shaped to engage the groove of the sound record attached to the other side of the disk. the. disk being thickened at the points of attachment.
7. yIn a talking machine the combination with a jewel reproducer point and supporting stylus arm therefor.y of a freely vibrating sound reproducing disk of elastic inaterital rigidly attached to said eirel and free from contact with any other part of the apparatus except the stylus arm. said disk having a diameter many times that of the stylus arm or bit of refractory material and a thickness considerably less than the diameter of said stylus arm or bit of refractory material.
8,. In a talking machine the combination with a reproducer tip of refractory material and supporting stylus arm therefor of a freely vibrating soi reproducing disk of elastic material rig attached to said reproducer point in a position to be parallel to the surface or" the sound record, at or near its pointof contact with the reproducer tip, said disk having a diameter many times that of the stylus arm or bit of refractory material, and a thickness considerably less than, said diameter of the stylus arm or bit of refractory material.
MATT'IIEW B. CLAUSSIC-N.
Witnessesz.
A. .PARKER-Salim, M. G. CRAWFORD.
US68865112A 1912-04-05 1912-04-05 Talking-machine. Expired - Lifetime US1084571A (en)

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