GB191027945A - Improvements in Sound Boxes for Talking Machines. - Google Patents

Improvements in Sound Boxes for Talking Machines.

Info

Publication number
GB191027945A
GB191027945A GB191027945DA GB191027945A GB 191027945 A GB191027945 A GB 191027945A GB 191027945D A GB191027945D A GB 191027945DA GB 191027945 A GB191027945 A GB 191027945A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
stethoscopes
wall
sound
modification
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
Inventor
Louis Lumiere
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
Application granted granted Critical
Publication of GB191027945A publication Critical patent/GB191027945A/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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/50—Anvils or other supports opposing stylus forces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

27,945. LumiÞre, L. Dec. 30, 1909, [Convention date]. Stethoscopes. - The invention relates to methods of mounting the diaphragm of a talking-machine sound-box, and the Specification as open to inspection under Section 91 (3) (a) states that the invention is applicable also to stethoscopes &c. In the sound-box shown in Fig. 1, the diaphragm b is hinged to the fixed wall a at one end, and connected at the other by flexible folding material c. The flexible material may extend all round between the wall and diaphragm. A rubber tube g, Fig. 3, may be arranged to roll between the cylindrical surfaces of the wall a and diaphragm b. The Specification as open to inspection under Section 91 (3) (a) comprises also a modification in which the diaphragm is dished, flanged, and corrugated. This modification and the reference to stethoscopes do not appear in the Specification as accepted.
GB191027945D 1909-12-30 1909-12-30 Improvements in Sound Boxes for Talking Machines. Expired GB191027945A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR191027945X 1909-12-30
FR191103481X 1910-01-06

Publications (1)

Publication Number Publication Date
GB191027945A true GB191027945A (en) 1911-04-27

Family

ID=32773930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191027945D Expired GB191027945A (en) 1909-12-30 1909-12-30 Improvements in Sound Boxes for Talking Machines.

Country Status (1)

Country Link
GB (1) GB191027945A (en)

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