GB272542A - Improvements in driving gear for sound recording and reproducing machines employing disc records - Google Patents

Improvements in driving gear for sound recording and reproducing machines employing disc records

Info

Publication number
GB272542A
GB272542A GB15553/27A GB1555327A GB272542A GB 272542 A GB272542 A GB 272542A GB 15553/27 A GB15553/27 A GB 15553/27A GB 1555327 A GB1555327 A GB 1555327A GB 272542 A GB272542 A GB 272542A
Authority
GB
United Kingdom
Prior art keywords
wheel
screw
carriage
spindle
turntable
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
Application number
GB15553/27A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOUIS EUGEN FAVRE
Original Assignee
LOUIS EUGEN FAVRE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOUIS EUGEN FAVRE filed Critical LOUIS EUGEN FAVRE
Publication of GB272542A publication Critical patent/GB272542A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Moving Of Heads (AREA)

Abstract

272,542. Favre, L. E. June 10, 1926, [Convention date]. Driving; speed regulating.-Relates to sound recording or reproducing machines of the kind wherein, in order that the lingar speed of the record groove in relation to the stylus may be constant, the driving-mechanism comprises a friction wheel which engages the underside of the turntable and is traversed by means of a screw-driven carriage along a radial shaft by which it is rotated. According to the invention, the carriage is mounted on a guide-bar which is movably mounted in such a manner that the carriage can be disengaged from the screw. The motor rotates a vertical spindle 14 which drives. by means of bevel wheels 15, 16, an horizontal shaft 17 on which a wheel 19 is slidably keyed. This wheel has a rubber &c. tyre, frictionally engaging the turntable 10 so as to drive it, and with it the central spindle 11 on which the turntable is mounted. The spindle 11 carries a worm 12 which drives a screw-threaded spindle 22, parallel to the shaft 17. Normally engaging the screw thread is an arm 29 on a member 27 which extends into a groove 33 in a boss on the friction-wheel 19, the part 27 being connected to a carriage 26 slidably mounted on a guide-bar 25. This bar is carried by a support 24 which is mounted on pivots so that it can be turned against the action of a spring 30 into the position shown in dotted lines in Fig. 4 in order to move the arm 29 out of engagement with the traversing screw 23. The disengaging movement is for the purpose either of enabling the carriage 26 and the wheel 19 to be returned when necessary to the starting position by means of a hand-operated rod 31, or of allowing the driving- wheel 19 to be freed from the traversing screw when an ordinary record is to be used. A button 28 acting on the end of the rod 25 by an eccentric is provided as the means for rocking the support 24.
GB15553/27A 1926-06-10 1927-06-10 Improvements in driving gear for sound recording and reproducing machines employing disc records Expired GB272542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH272542X 1926-06-10

Publications (1)

Publication Number Publication Date
GB272542A true GB272542A (en) 1927-11-10

Family

ID=4478777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15553/27A Expired GB272542A (en) 1926-06-10 1927-06-10 Improvements in driving gear for sound recording and reproducing machines employing disc records

Country Status (1)

Country Link
GB (1) GB272542A (en)

Similar Documents

Publication Publication Date Title
US2254066A (en) Two-speed drive for turntables
GB272542A (en) Improvements in driving gear for sound recording and reproducing machines employing disc records
US2391784A (en) Sound recording and reproducing machine
US2357033A (en) Pickup feed mechanism for phonographs
US2241013A (en) Speed change for recording apparatus
US2786559A (en) Sound recording and/or reproducing device
US2437128A (en) Variable-speed transmission
US3896491A (en) Setting mechanism for the pickup head of a disc storage system, especially for teaching purposes
GB191101610A (en) Improvements in Talking Machines.
GB190814612A (en) Improvements in Machines for Recording and Reproducing Sounds.
GB198685A (en) Improvements in apparatus for recording and reproducing sound on records of talking machines
GB394829A (en) Improvements in or relating to the recording and reproduction of sound in connectionwith kinematographs
US2387010A (en) Sound transcription machine
GB532095A (en) Improvements in sound recording and reproducing
US3386743A (en) Combination dictating-transcribing machine
GB160908A (en) Improvements in and relating to sound recording or reproducing machines
GB191215861A (en) Dictating Machine with Disc Records.
GB191017345A (en) Improvements in and relating to Talking Machines.
US2254519A (en) Phonograph recording device
US1619623A (en) Phonograph
US936266A (en) Phonograph.
US1711650A (en) Phonograph-record-recording machine
GB190826756A (en) Improvements in or relating to Sound Recording and Reproducing Apparatus.
GB266791A (en) Improvements in or relating to gramophone and like machines
GB190918437A (en) Improvements in Sound Reproducing Machines.