US2512121A - Talking machine with record changer - Google Patents

Talking machine with record changer Download PDF

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Publication number
US2512121A
US2512121A US732001A US73200147A US2512121A US 2512121 A US2512121 A US 2512121A US 732001 A US732001 A US 732001A US 73200147 A US73200147 A US 73200147A US 2512121 A US2512121 A US 2512121A
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record
shaft
talking machine
june
sheet
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US732001A
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Thevenaz Louis
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HERMANN THORENS SA
THORENS HERMANN SA
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THORENS HERMANN SA
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
    • G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
    • G11B17/16—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post

Definitions

  • Thi invention relates to talkin machines with record-changer adapted to play automatically and successively the underside of the lowermostrecordof astack supported on afirst supporting surface and the upper side of .the same record after it has been brought without reversal onto a second supporting surface positioned in vertical alignment withthe first supporting surface.
  • Animportant feature of the invention resides iiithe .provision of a single tonearm, at the extremity ofwhich, a pick-up with single oscillating device. is pivotally mounted; and. of means controlled. by the cycle control device of the recordchanger for-turning saidopick-up over by 180 in order to automatically bring the single stylus into either of the playing positions.
  • Fig.1 is an elevational view with parts in section of a first talking machine with recordchanger embodyin theinvention, without casing and 'withoutde'vice controlling'the rotation of the pick-up with respect to the tone arm.
  • FIG. 2 is an'enlarged broken view partly in section and partly inelevation of the central shafts of the machine.
  • Figs. 3, 4 and 5 are broken and enlarged axial sectional views of the record supporting shaft of the machine in three difierent working positions.
  • Figf 6 is a cross-sectionalview taken on line VI-'VIoi Fig. 3. v
  • Fig. 7 is an elevation'al'view with parts in section of the mechanism controlling the movements of the tone arm.
  • Fig. 8 is a general plan View ofthe mechanism controlling 'the'movements of the pick-up and the record feeding "Fig. 9 a vertical sectional View taken onthe broken line IX-AIX of Fig. 8.
  • Fig. 10 is a plan view of the mechanismpo'si- L tioning the tone arm for playing different sized records.
  • FIGs. ll. and "12 are partial elev'ational views of the mechanism positioning the tone arm for playingdifferent sized records in two different working positions.
  • Fig. 13 is an'eievational view of the cam controlling the movements of the tone arm.
  • Fig. 14 is a diagrammatic view illustrating the action ofthe cam'shown in Fig. 13.
  • Fig. 16 is a partial elevational view on enlarged scale; with partsin section of the mecha- "nisni'for turning the pick-upover.
  • Fig. 17 is a partial plan'view with parts in section of the same mechanism.
  • Fig. 18 is a side elevational view of'the' same mechanism taken on the line 'xvnr xvm or 'Fig.16.
  • Fig. l9 is a top plan view of a second talking machine embodying the invention, 'the casing-being partly broken away toshowthepick-up in playing position at the beginning of a 30 cm. record.
  • Fig. 20' is a'general elevational View of this Fig. 20, with a part ofthe mechanism controlling the lateralmovements of the tone arm representedtherein.
  • Fig. 23 is a partialvertical sectional viewon enlarged scale takenonline XXIII-XXIII "of Fig. 19,showing the" tone arm in playing position'at the beginning ofthe upper side of a 30 cm. recordsupported'onthe turntable and further'showin the pick-up in different positions.
  • Figf24- is aback view of a part of the mcha- :nism.
  • Fig. 251 s an elevational view with partsin section taken on linXXV-'-XXV 6f Fig. 19, showing apart of the device for'lifting the tone arm.
  • Fig. 26 is an 'elevational 'view with parts in Fig. 28 is an ehlarged"elevational View with parts in section'of a detail of the mechanism shown in'Fig. 26.
  • FIG. 30 is a' sectional "View taken on"line XXX -XXX of Fig. 26;
  • Figi'31 is'- a-topplan view of the'device controlling the turningofthe pick-up.
  • the firsttalking machine representediifFigsi 1' to 18 comprises a first electric motor I fixed to the underside of the base plate 2 by means of three bolts 3; the driving shaft 4 of this first motor rotates the turntable 5 on which is supported a 30 cm. record 8 the upper side of which is to be played by the pick-up I through the medium of its single stylus 8.
  • the upper end of the driving shaft 4 is formed with a socket 9 within which is lodged a ball thrust bearing 31 rotatably supporting the semi-spherical lower end Ill of a straight shaft II extending vertically through the central aperture of a stack of records I2, the lowermost one I2 of which is supported on the supporting surface I3 formed by the upper edge of a U-shaped piece 34 (see Figs. 2 to 6) hingedly connected to the shaft II, within a longitudinal groove thereof.
  • the semi-spherical upper end 38 of the shaft I I is engaged in a bushing I 4 formed at the lower end of the downwardly extending driving shaft I5 of .
  • a second electric moto I6 positioned above the stack of records I2 on a bracket II secured to;the. base plate 2 by means of feet i8 screwed thereto.
  • On the stacked records I2 rests a presser plate Ill loosely engaging the shaft I I and adapted toprevent the records from oscillating during their rotation.
  • the upper motor I6 rotates in opposite direction to the lower motor I thus rotating the shaft II, which is coupled with the driving shaft I5, and with shaft I I the stacked records I2 in the opposite direction to the record 6 supported on the turntable 5.
  • the removable shaft I I which rotates the stacked records I2 in opposite direction to therecord 6 supported on the
  • the supporting surface I3 is formed by the upper edge of the U-shaped piece 34 which is hinged about a pin 35 diametrically crossing the hollow shaft II.
  • the piece 34 is placed under the action of a spring 36 which tends to maintain it in the position shown inthe Figures 3 and 4 with the supporting surface I3 emerging from the shaft II.
  • the supporting surface I3 is thus collapsible into the inside of the hollow shaft II under the action of one or more records displaced upwardly as shown by the arrow in Fig. 5.
  • a push-lever 3I pivoted at its upper end about a cross-pin 32 engaging the slot 29 of the link 28 and secured to the shaft II; the push-lever is provided at its median portion with a biased slot 3Ib in' which engages the pin 30 of the link 28 and is formed with a nose 3Ib.
  • the push-lever 3I is thus hingedly connected with the link 28 in the fashion of a scissors blade so that, a downward displacement of the plunger 26 against the action of the spring 2'! causes the nose turntable 5, when, under the action of the record 7 feeding device which will hereinafter be described the plunger 26 is disp1aced downwards.
  • Fig. 3 shows the position of the record releasing members of the shaft II during the-playing of a record
  • Fig. 6 shows the same members in releasing position of the record I2 ning against the shoulder formed by the upper edge of this notch.
  • the shaft I I is rotatably supported by its lower .semi-spherical end II) on the ball thrust bearing 25 3? within the socket 9 and engaged by its semispherical upper end 38 in the bushing I4 formed at the lower extremity of the driving shaft I5 of the upper motor I6.
  • the driving shaft I5 rotates at 78 revolutions per minute, like the driving shaft 4 of the lower motor I, but in the opposite direction. It is driven by means of a worm gear 39, made of antisound material, meshing with a worm 40 formed at the extremity of the rotorshaft of the motor IS.
  • the upper portion of theshaft II is provided with a longitudinal groove- 4I in which engages a blade 42 riveted to a semicircular spring 43 lodged in an annular grooveof the bushing M.
  • the removable shaft II is. thus driven by the blade 42 which is dependent upon the bushing I4, the latter being rigid with the driving shaft I5.
  • the presser plate rotates. together with the shaft II.
  • serves to hold the presser plate I9 when all of the stacked records have been released from the supporting surface I3.
  • the upper driving shaft I5 is axially bored and in its bore is slidably mounted a rod 44 the upper end of which emerges from the shaft I5 and is formed with a head 45 on which acts a bell crank lever 46 being part of the record feeding control mechanism which will hereinafter be described.
  • the shaft l I carrying the presser plate I9 is removed by lifting it vertically until its lower semi-spherical end ID is released from the socket 9 of the lower driving shaft 4, then inclining and lowering it to disengage its upper semi-spherical end 38 from the bushing I4.
  • the different sized records to be played are then stacked in any desired order onto the turntable 5 with their central bore engaging the upper end of the shaft 4.
  • the shaft II carrying the presser plate I9 is then restored to its axial position between the socket 9 and the bushing I4 and the whole stack of records is lifted manually along the shaft II causing the supporting surface I3 to collapse as shown in Fig. 5 against the action of the spring 36 which restores it after the passage of the lowermost record to its supporting position.

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  • Automatic Disk Changers (AREA)

Description

June 20, 1950 1.. THEVENAZ TALKING MACHINE WITH RECORD CHANGER l8 Sheets-Sheet 2 Filed March 5, 1947 18/ 7&7 177 I26 l I I I I *1 I I I June 20, 1950 L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER Fil ed March 3, 1947 18 Sheets-Sheet 3 L. THEVENAZV TALKING MACHINE WITH RECORD CHANGER June 20, 1950 18 Sheets-Sheet 4 Filed March 5, 1947 122/11 Fin/Z01 L The u (ill/6L2 June 20, 1950 I L. THEVENAZ 2,512,121
TALKING MACHINE WITH RECORD CHANGER Filed March 5, 1947 18 Sheets-Sheet 5 lzzv entol Z;. The U ena/z June 20, 1950 L. THEVENAZ 2,512,121
TALKING MACHINE WITH RECORD CHANGER Filed March 5, 1947 18 Sheets-Sheet 6 77 224 71922371 62 49 69 I87 g P 18 165 78.6 786 X .5 The U (9120/2 18 Sheets-Sheet 7 June 20, 1950 L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER Filed March 3, 1947 i VIII,IIIIIIIIIIIIIIIIIIII/V'IIII'IIIIIIIIIIIIIII'II'II'II Izbv era-2201 L .The U ezz/a/z J7 l I! 1M June 20, 1950 1.. THEN/ENAZ 2,512,121
TALKING MACHINE WITH RECORD CHANGER Filed March 3, 1947 18 Sheets-Sheet 8 13. 12 liar/8127601 L ThGUGILCLZ 18 Sheets-Sheet 9 L. THEVENAZV TALKING MACHINE ITH RECORD CHANGER June 20, 1950 Filed March :5, 1947 L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER June 20, 1950 18 Sheets-Sheet 10 Filed March 3, 1947 qmw m l. The u ell/Q2 18 Sheets-Sheet ll QWMMK mH EHWV E.
June 20, 1950 L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER Filed March 3, 1947 June 20, 1950 1.. THEVENAZ TALKING MACHINE WITH RECORD CHANGER l8 Sheets-Sheet 12 Filed March 3, 1947 Inv ezv-boz June 20, 1950 THEVENAZ TALKING MACHINE WITH RECORD CHANGER l8 Sheets-Sheet 15 Filed March 3, 1947 L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER Jupe 20, 1950 18 Sheets-Sheet 14 Filed March 3, 1947 wwwq 122v era-2:01 LTfzev 6120/2 June 20, 1950 THEVENAZ TALKING MACHINE WITH RECORD CHANGER l8 Sheets-Sheet 16 Filed March 5, 1947 9w. Em mum June 20, 1950 L. THEVENAZ 2,512,121
TALKING MACHINE WITH RECORD CHANGER Filed March 3, 1947 18 Sheets-Sheet 1'7 l; Th6 U ena/z is, I I 1,
L. THEVENAZ TALKING MACHINE WITH RECORD CHANGER June 20, 1950 is Shee'ts-Sheet 1a Filed March 3, 1947 L22) emi L. YYZGLWZL Z Patented June 20, 1950 TALKING'JMACHINE WITH RECORD CHAN GER .Louis Thvenaz, Les Rasses,'near Sainte Croix,
Switzerland, assignor to Hermann Thorens Societe Anonyme, a Swiss firm.
Application March 3, 1947,. Serial No. 732,001 1 In Switzerland March 13, 1946 12"(3laims. .11
Thi invention relates to talkin machines with record-changer adapted to play automatically and successively the underside of the lowermostrecordof astack supported on afirst supporting surface and the upper side of .the same record after it has been brought without reversal onto a second supporting surface positioned in vertical alignment withthe first supporting surface.
Animportant feature of the invention resides iiithe .provision of a single tonearm, at the extremity ofwhich, a pick-up with single oscillating device. is pivotally mounted; and. of means controlled. by the cycle control device of the recordchanger for-turning saidopick-up over by 180 in order to automatically bring the single stylus into either of the playing positions.
"Other. features and objects of the invention will appear hereinafter.
In the accompanying drawings in which are shown two practical embodiments of the invention:
"Fig.1 is an elevational view with parts in section of a first talking machine with recordchanger embodyin theinvention, without casing and 'withoutde'vice controlling'the rotation of the pick-up with respect to the tone arm.
"Fig. 2 is an'enlarged broken view partly in section and partly inelevation of the central shafts of the machine.
Figs. 3, 4 and 5 are broken and enlarged axial sectional views of the record supporting shaft of the machine in three difierent working positions.
Figf 6 is a cross-sectionalview taken on line VI-'VIoi Fig. 3. v
"Fig. 7 is an elevation'al'view with parts in section of the mechanism controlling the movements of the tone arm.
Fig. 8 is a general plan View ofthe mechanism controlling 'the'movements of the pick-up and the record feeding "Fig. 9 a vertical sectional View taken onthe broken line IX-AIX of Fig. 8.
Fig. 10 is a plan view of the mechanismpo'si- L tioning the tone arm for playing different sized records.
-Figs. ll. and "12 are partial elev'ational views of the mechanism positioning the tone arm for playingdifferent sized records in two different working positions.
' Fig. 13 is an'eievational view of the cam controlling the movements of the tone arm.
Fig; 14 is a diagrammatic view illustrating the action ofthe cam'shown in Fig. 13.
Fig. 15--isa detailed perspective'view illustrating the construction 'oi'the cam showrrin Fig. 13.
Fig. 16 is a partial elevational view on enlarged scale; with partsin section of the mecha- "nisni'for turning the pick-upover.
Fig. 17 is a partial plan'view with parts in section of the same mechanism.
Fig. 18 is a side elevational view of'the' same mechanism taken on the line 'xvnr xvm or 'Fig.16.
Fig. l9'is a top plan view of a second talking machine embodying the invention, 'the casing-being partly broken away toshowthepick-up in playing position at the beginning of a 30 cm. record.
Fig. 20' is a'general elevational View of this Fig. 20, with a part ofthe mechanism controlling the lateralmovements of the tone arm representedtherein.
Fig. 23 is a partialvertical sectional viewon enlarged scale takenonline XXIII-XXIII "of Fig. 19,showing the" tone arm in playing position'at the beginning ofthe upper side of a 30 cm. recordsupported'onthe turntable and further'showin the pick-up in different positions. 'Figf24-is aback view of a part of the mcha- :nism.
Fig. 251s an elevational view with partsin section taken on linXXV-'-XXV 6f Fig. 19, showing apart of the device for'lifting the tone arm.
"Fig." 26 is an 'elevational 'view with parts in Fig. 28 is an ehlarged"elevational View with parts in section'of a detail of the mechanism shown in'Fig. 26. I
"Figf-"29 is a similar'view of the same"detail in another position.
. 'Fig. 30 is a' sectional "View taken on"line XXX -XXX of Fig. 26; and
"Figi'31 is'- a-topplan view of the'device controlling the turningofthe pick-up.
The firsttalking machine representediifFigsi 1' to 18 comprises a first electric motor I fixed to the underside of the base plate 2 by means of three bolts 3; the driving shaft 4 of this first motor rotates the turntable 5 on which is supported a 30 cm. record 8 the upper side of which is to be played by the pick-up I through the medium of its single stylus 8. The upper end of the driving shaft 4 is formed with a socket 9 within which is lodged a ball thrust bearing 31 rotatably supporting the semi-spherical lower end Ill of a straight shaft II extending vertically through the central aperture of a stack of records I2, the lowermost one I2 of which is supported on the supporting surface I3 formed by the upper edge of a U-shaped piece 34 (see Figs. 2 to 6) hingedly connected to the shaft II, within a longitudinal groove thereof.
The semi-spherical upper end 38 of the shaft I I is engaged in a bushing I 4 formed at the lower end of the downwardly extending driving shaft I5 of .a second electric moto I6 positioned above the stack of records I2 on a bracket II secured to;the. base plate 2 by means of feet i8 screwed thereto. On the stacked records I2 rests a presser plate Ill loosely engaging the shaft I I and adapted toprevent the records from oscillating during their rotation. The upper motor I6 rotates in opposite direction to the lower motor I thus rotating the shaft II, which is coupled with the driving shaft I5, and with shaft I I the stacked records I2 in the opposite direction to the record 6 supported on the turntable 5.
Record feeding mechanism As shown in Figures 2 to 6, the removable shaft I I which rotates the stacked records I2 in opposite direction to therecord 6 supported on the The supporting surface I3 is formed by the upper edge of the U-shaped piece 34 which is hinged about a pin 35 diametrically crossing the hollow shaft II. The piece 34 is placed under the action of a spring 36 which tends to maintain it in the position shown inthe Figures 3 and 4 with the supporting surface I3 emerging from the shaft II. The supporting surface I3 is thus collapsible into the inside of the hollow shaft II under the action of one or more records displaced upwardly as shown by the arrow in Fig. 5. It is thus possible torestore at will one or more records from the turntable up to the supporting surface I3, which means to reload the changer without removing the shaft II and without waiting for all of the stacked records turntable 5 is hollow and within said shaft is slidingly mounted a plunger 26 placed under the action of a coil spring 21 which tends to urge it upwards. At the lower end of the plunger 26 is-secured a link 28 having a longitudinal slot 29 and a cross-pin 3!). With the link 28 is hingedly connected a push-lever 3I pivoted at its upper end about a cross-pin 32 engaging the slot 29 of the link 28 and secured to the shaft II; the push-lever is provided at its median portion with a biased slot 3Ib in' which engages the pin 30 of the link 28 and is formed with a nose 3Ib. The push-lever 3I is thus hingedly connected with the link 28 in the fashion of a scissors blade so that, a downward displacement of the plunger 26 against the action of the spring 2'! causes the nose turntable 5, when, under the action of the record 7 feeding device which will hereinafter be described the plunger 26 is disp1aced downwards. Meanwhile the upper edge of the nose 3Ia holds the last record but one I2 and the whole stack while the edge of the central aperture of the record I2 opposite to that which has been pushed by the nose 3 I a enters a notch 33 provided in the wall of the hollow shaft I I so that said record I2 gets clear of the supporting surface I3 and drops onto the turntable 5. Fig. 3 shows the position of the record releasing members of the shaft II during the-playing of a record, and Fig. 6 shows the same members in releasing position of the record I2 ning against the shoulder formed by the upper edge of this notch.
The shaft I I is rotatably supported by its lower .semi-spherical end II) on the ball thrust bearing 25 3? within the socket 9 and engaged by its semispherical upper end 38 in the bushing I4 formed at the lower extremity of the driving shaft I5 of the upper motor I6. The driving shaft I5 rotates at 78 revolutions per minute, like the driving shaft 4 of the lower motor I, but in the opposite direction. It is driven by means of a worm gear 39, made of antisound material, meshing with a worm 40 formed at the extremity of the rotorshaft of the motor IS. The upper portion of theshaft II is provided with a longitudinal groove- 4I in which engages a blade 42 riveted to a semicircular spring 43 lodged in an annular grooveof the bushing M. The removable shaft II is. thus driven by the blade 42 which is dependent upon the bushing I4, the latter being rigid with the driving shaft I5. The presser plate rotates. together with the shaft II. The lower end of the longitudinal groove 4| serves to hold the presser plate I9 when all of the stacked records have been released from the supporting surface I3. s
The upper driving shaft I5 is axially bored and in its bore is slidably mounted a rod 44 the upper end of which emerges from the shaft I5 and is formed with a head 45 on which acts a bell crank lever 46 being part of the record feeding control mechanism which will hereinafter be described.
When it is desired to reload the changer, the shaft l I carrying the presser plate I9 is removed by lifting it vertically until its lower semi-spherical end ID is released from the socket 9 of the lower driving shaft 4, then inclining and lowering it to disengage its upper semi-spherical end 38 from the bushing I4. The different sized records to be played are then stacked in any desired order onto the turntable 5 with their central bore engaging the upper end of the shaft 4. The shaft II carrying the presser plate I9 is then restored to its axial position between the socket 9 and the bushing I4 and the whole stack of records is lifted manually along the shaft II causing the supporting surface I3 to collapse as shown in Fig. 5 against the action of the spring 36 which restores it after the passage of the lowermost record to its supporting position.
If, when. the upper semi-spherical end 38 of the shaft I I is introduced into the bushing I4, the coupling blade 42 does not lie in front of the groove M, the spring 43 will yield up and permit introduction of the shaft, which then needs only'
US732001A 1946-03-13 1947-03-03 Talking machine with record changer Expired - Lifetime US2512121A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777699A (en) * 1949-08-20 1957-01-15 Ben H Woodruff Automatic record player
US2790644A (en) * 1952-04-30 1957-04-30 Markel Electric Products Inc Machine for playing disk-type phonograph records
US2841400A (en) * 1953-07-10 1958-07-01 Various Assignees Tone arm control for the fully automatic or manually controlled playing of intermixed records
US2873977A (en) * 1954-03-23 1959-02-17 Garrard Eng & Mfg Co Ltd Record supporting spindles for record changing gramophones
US3794331A (en) * 1970-11-02 1974-02-26 Philips Corp Change spindle for use in an automatic record changer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043789A (en) * 1935-05-20 1936-06-09 Arthur C Ansley Multiple record phonograph
FR822026A (en) * 1936-05-20 1937-12-18 Filatures Et Tissages Du 4 Sep Improvements to automatic change devices for sound recording discs
US2281547A (en) * 1937-12-20 1942-05-05 Edward F Andrews Automatic phonograph
US2318654A (en) * 1941-05-09 1943-05-11 Benjamin F Wissner Automatic phonograph
US2333414A (en) * 1940-09-19 1943-11-02 Gen Electric Automatic record changer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043789A (en) * 1935-05-20 1936-06-09 Arthur C Ansley Multiple record phonograph
FR822026A (en) * 1936-05-20 1937-12-18 Filatures Et Tissages Du 4 Sep Improvements to automatic change devices for sound recording discs
US2281547A (en) * 1937-12-20 1942-05-05 Edward F Andrews Automatic phonograph
US2333414A (en) * 1940-09-19 1943-11-02 Gen Electric Automatic record changer
US2318654A (en) * 1941-05-09 1943-05-11 Benjamin F Wissner Automatic phonograph

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777699A (en) * 1949-08-20 1957-01-15 Ben H Woodruff Automatic record player
US2790644A (en) * 1952-04-30 1957-04-30 Markel Electric Products Inc Machine for playing disk-type phonograph records
US2841400A (en) * 1953-07-10 1958-07-01 Various Assignees Tone arm control for the fully automatic or manually controlled playing of intermixed records
US2873977A (en) * 1954-03-23 1959-02-17 Garrard Eng & Mfg Co Ltd Record supporting spindles for record changing gramophones
US3794331A (en) * 1970-11-02 1974-02-26 Philips Corp Change spindle for use in an automatic record changer

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