GB423406A - Improvements in and relating to sound reproducing devices - Google Patents

Improvements in and relating to sound reproducing devices

Info

Publication number
GB423406A
GB423406A GB1358934A GB1358934A GB423406A GB 423406 A GB423406 A GB 423406A GB 1358934 A GB1358934 A GB 1358934A GB 1358934 A GB1358934 A GB 1358934A GB 423406 A GB423406 A GB 423406A
Authority
GB
United Kingdom
Prior art keywords
mass
spring
sound
reproducer
engaging
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
GB1358934A
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
Priority to GB1358934A priority Critical patent/GB423406A/en
Publication of GB423406A publication Critical patent/GB423406A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

423,406. Gramophones. GOLDSCHMIDT, R., 57, Westbourne Terrace, Paddington, London. May 4, 1934, No. 13589. [Class 40 (ii)] In a sound-reproducing device having a stylus engaging the sound groove of a record, the stylus bar 3 is pivoted in a fork 5 forming an extension of a mass 6 which is yieldingly mounted on the sound reproducer as by means of a leaf spring 8 of general #-shape secured by a screw 11 engaging a threaded member 10 which clamps the spring through pressure transmitting members 9. The mass 6 may be of metal or thermo-plastic material and the ends of the spring 8 may be moulded into the mass. A strip of lead, &c., 12 is interposed between the spring and the body of the reproducer. The mass 6 is formed with a recess forming a socket to receive the rubber-covered shank 17 of an additional mass 16 carrying an offset resilient blade 15 supporting a further mass 20. Additional masses resiliently supported by members offset from the mass centre may be provided. The spring arms 8 are slightly inclined to the vertical. Specification 412,194 is referred to.
GB1358934A 1934-05-04 1934-05-04 Improvements in and relating to sound reproducing devices Expired GB423406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1358934A GB423406A (en) 1934-05-04 1934-05-04 Improvements in and relating to sound reproducing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1358934A GB423406A (en) 1934-05-04 1934-05-04 Improvements in and relating to sound reproducing devices

Publications (1)

Publication Number Publication Date
GB423406A true GB423406A (en) 1935-01-31

Family

ID=10025720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1358934A Expired GB423406A (en) 1934-05-04 1934-05-04 Improvements in and relating to sound reproducing devices

Country Status (1)

Country Link
GB (1) GB423406A (en)

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