GB145069A - Improvements relating to talking machines - Google Patents

Improvements relating to talking machines

Info

Publication number
GB145069A
GB145069A GB16290/20A GB1629020A GB145069A GB 145069 A GB145069 A GB 145069A GB 16290/20 A GB16290/20 A GB 16290/20A GB 1629020 A GB1629020 A GB 1629020A GB 145069 A GB145069 A GB 145069A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
talking machines
sound
mossy
rubber
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
GB16290/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB145069A publication Critical patent/GB145069A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Telephone Set Structure (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

145,069. Hurm, H. May 13, 1919, [Convention date]. Sound magnifying and directing appliances. - A gramophone trumpet, Fig. 1, comprises a lining b of spongy or mossy rubber, with or without an outer covering c of leather, celluloid or the like, which is fastened at e and attached to the tonearm by a strap and buckle f. The Specification as open to inspection under Sect. 91 (3) (a) comprises also, for use where eartubes are employed, an expansion chamber lined with mossy rubber, shaped as a hemi-ellipsoid, and arranged so that the sound enters at one focus and leaves at the other. This subject-matter does not appear in the Specification as accepted.
GB16290/20A 1919-05-13 1920-06-16 Improvements relating to talking machines Expired GB145069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR506343T 1919-05-13

Publications (1)

Publication Number Publication Date
GB145069A true GB145069A (en) 1921-09-16

Family

ID=8909091

Family Applications (3)

Application Number Title Priority Date Filing Date
GB16290/20A Expired GB145069A (en) 1919-05-13 1920-06-16 Improvements relating to talking machines
GB29773/20A Expired GB152955A (en) 1919-05-13 1920-06-16 Improvements in stylus bars for talking machines
GB29774/20A Expired GB152956A (en) 1919-05-13 1920-06-16 Improvements in tone arms for talking machines

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB29773/20A Expired GB152955A (en) 1919-05-13 1920-06-16 Improvements in stylus bars for talking machines
GB29774/20A Expired GB152956A (en) 1919-05-13 1920-06-16 Improvements in tone arms for talking machines

Country Status (3)

Country Link
CH (1) CH90735A (en)
FR (1) FR506343A (en)
GB (3) GB145069A (en)

Also Published As

Publication number Publication date
GB152956A (en) 1921-04-21
FR506343A (en) 1920-08-19
CH90735A (en) 1921-09-16
GB152955A (en) 1921-07-28

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