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GB258530A - Improvements in or relating to electromagnetic vibratory devices - Google Patents

Improvements in or relating to electromagnetic vibratory devices

Info

Publication number
GB258530A
GB258530A GB1704526A GB1704526A GB258530A GB 258530 A GB258530 A GB 258530A GB 1704526 A GB1704526 A GB 1704526A GB 1704526 A GB1704526 A GB 1704526A GB 258530 A GB258530 A GB 258530A
Authority
GB
United Kingdom
Prior art keywords
springs
armature
magnetic
arm
relating
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
GB1704526A
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories Inc
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
Priority to NL20010D priority Critical patent/NL20010C/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to GB1704526A priority patent/GB258530A/en
Priority to DEW73494D priority patent/DE510142C/de
Priority to CH125514D priority patent/CH125514A/de
Publication of GB258530A publication Critical patent/GB258530A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Magnetic Treatment Devices (AREA)
GB1704526A 1925-07-25 1925-07-25 Improvements in or relating to electromagnetic vibratory devices Expired GB258530A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL20010D NL20010C (de) 1925-07-25
GB1704526A GB258530A (en) 1925-07-25 1925-07-25 Improvements in or relating to electromagnetic vibratory devices
DEW73494D DE510142C (de) 1925-07-25 1925-07-31 Elektromagnetische Einrichtung, insbesondere Schalldose
CH125514D CH125514A (de) 1925-07-25 1925-12-22 Elektromagnetische Schwingungseinrichtung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1704526A GB258530A (en) 1925-07-25 1925-07-25 Improvements in or relating to electromagnetic vibratory devices

Publications (1)

Publication Number Publication Date
GB258530A true GB258530A (en) 1926-09-23

Family

ID=10088253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1704526A Expired GB258530A (en) 1925-07-25 1925-07-25 Improvements in or relating to electromagnetic vibratory devices

Country Status (3)

Country Link
CH (1) CH125514A (de)
GB (1) GB258530A (de)
NL (1) NL20010C (de)

Also Published As

Publication number Publication date
NL20010C (de)
CH125514A (de) 1928-04-16

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