GB349829A - Improvements in or connected with sound reproducing machines - Google Patents

Improvements in or connected with sound reproducing machines

Info

Publication number
GB349829A
GB349829A GB21868/30A GB2186830A GB349829A GB 349829 A GB349829 A GB 349829A GB 21868/30 A GB21868/30 A GB 21868/30A GB 2186830 A GB2186830 A GB 2186830A GB 349829 A GB349829 A GB 349829A
Authority
GB
United Kingdom
Prior art keywords
disc
shaft
worm
july
lever
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
GB21868/30A
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.)
ASSOCIATED SOUND FILM IND Ltd
Original Assignee
ASSOCIATED SOUND FILM IND Ltd
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 ASSOCIATED SOUND FILM IND Ltd filed Critical ASSOCIATED SOUND FILM IND Ltd
Publication of GB349829A publication Critical patent/GB349829A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gear Transmission (AREA)

Abstract

349,829. Flexible shaft couplings. ASSOCIATED SOUND FILM INDUSTRIES, Ltd., River Plate House, Finsbury Circus, London.-(Assignees of Ebeling, C. W. ; 1600, Broadway, New York, U.S.A.) July 19, 1930, No. 21868. Convention date, July 19, 1929. [Class 80 (ii).] A casing 14 for gramophone driving mechanism is supported on resilient blocks 13 and, carries a hollow boss 16 supporting a worm 22 on a driving shaft 23. The lower end 18 of the boss 16 carries a step bearing for a hollow rotatable shaft 20 which has a gear wheel driven by the worm 22 and at its upper end a disc 30. A small disc 46 and the turntable 48 are mounted above the disc 30 on a spindle 47 rotatable in the shaft 20. The driving connection between the discs 30, 46 consists of a lever 32 which is pivoted at 33 to the disc 46 and is secured to the disc 30 by springs 38 and pin 31. The disc 46 has adjustable stops 37 and a damping friction plate 41 for co-operation with the lever 32. The shaft 23 is driven from a motion picture proj ector through sound-deadening flexible couplings 24, 28 and a telescopic connection 27.
GB21868/30A 1929-07-19 1930-07-19 Improvements in or connected with sound reproducing machines Expired GB349829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US349829XA 1929-07-19 1929-07-19

Publications (1)

Publication Number Publication Date
GB349829A true GB349829A (en) 1931-06-04

Family

ID=21879878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21868/30A Expired GB349829A (en) 1929-07-19 1930-07-19 Improvements in or connected with sound reproducing machines

Country Status (1)

Country Link
GB (1) GB349829A (en)

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