GB352914A - Improvements in and relating to sound reproducing and recording devices - Google Patents

Improvements in and relating to sound reproducing and recording devices

Info

Publication number
GB352914A
GB352914A GB999/30A GB99930A GB352914A GB 352914 A GB352914 A GB 352914A GB 999/30 A GB999/30 A GB 999/30A GB 99930 A GB99930 A GB 99930A GB 352914 A GB352914 A GB 352914A
Authority
GB
United Kingdom
Prior art keywords
members
rod
loud
jan
cutter
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
GB999/30A
Other languages
English (en)
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB352914A publication Critical patent/GB352914A/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
    • H04R15/00—Magnetostrictive transducers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/046—Vibration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2585—Tool rest

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB999/30A 1929-01-22 1930-01-10 Improvements in and relating to sound reproducing and recording devices Expired GB352914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334250A US1768377A (en) 1929-01-22 1929-01-22 Sound reproducing and recording device

Publications (1)

Publication Number Publication Date
GB352914A true GB352914A (en) 1931-07-16

Family

ID=23306325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB999/30A Expired GB352914A (en) 1929-01-22 1930-01-10 Improvements in and relating to sound reproducing and recording devices

Country Status (4)

Country Link
US (1) US1768377A (enrdf_load_stackoverflow)
BE (1) BE367125A (enrdf_load_stackoverflow)
FR (1) FR688658A (enrdf_load_stackoverflow)
GB (1) GB352914A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433337A (en) * 1943-01-19 1947-12-30 Bell Telephone Labor Inc Magnetostrictive signal translating device
US2441158A (en) * 1944-11-03 1948-05-11 Krasnow Leonard Machine tool
US2475148A (en) * 1945-04-16 1949-07-05 Massa Frank Transducer means
US2730103A (en) * 1954-11-22 1956-01-10 Mackta Leo Magnetostrictive cutting tool
US2921372A (en) * 1955-06-24 1960-01-19 Jr Albert G Bodine Torsional vibration sonic drill
US3469475A (en) * 1967-02-27 1969-09-30 Sperry Canada Ltd Apparatus for maintaining positional stability between a tool member and a workpiece
SU957259A2 (ru) * 1978-12-26 1982-09-07 За витель Головка электродинамического звукоснимател

Also Published As

Publication number Publication date
US1768377A (en) 1930-06-24
BE367125A (enrdf_load_stackoverflow)
FR688658A (fr) 1930-08-27

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