GB586102A - Improvements in and relating to gramophone pick-ups or recorders - Google Patents

Improvements in and relating to gramophone pick-ups or recorders

Info

Publication number
GB586102A
GB586102A GB2503444A GB2503444A GB586102A GB 586102 A GB586102 A GB 586102A GB 2503444 A GB2503444 A GB 2503444A GB 2503444 A GB2503444 A GB 2503444A GB 586102 A GB586102 A GB 586102A
Authority
GB
United Kingdom
Prior art keywords
needle
pick
held
rubber
blocks
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
GB2503444A
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.)
GUSTAVUS HAROLD DYER
British Thomson Houston Co Ltd
Original Assignee
GUSTAVUS HAROLD DYER
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 GUSTAVUS HAROLD DYER, British Thomson Houston Co Ltd filed Critical GUSTAVUS HAROLD DYER
Priority to GB2503444A priority Critical patent/GB586102A/en
Publication of GB586102A publication Critical patent/GB586102A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

586,102. Gramophone pick-ups and recorders. BRITISH THOMSON-HOUSTON CO., Ltd., and DYER, G. H. Dec. 13, 1944, No. 25034. [Class 40 (iv)] [Also in Group XXXVIII] In an electrical pick-up or recorder, the needle is held between two blocks of rubber or other resilient material, one of which is fixed and the other is adjustable towards or away from the needle to secure it or release it respectively. In the needle armature pick-up shown, the upper part of the needle 4 is located in a thin metal holder 5 held between two blocks 6 of rubber which are mounted between clamping pieces 7, 8. The clamping piece 7 is rigidly fixed, but the clamping piece 8 is capable of sliding between a block 3c and a guide plate 10 and is forced towards the fixed clamping piece 7 by means of a screw 11 passing through the side limb 1a of one of the polepieces of the magnet 2. The needle 4 is held in position by the holder 5 whose walls are sufficiently deformable by pressure of the rubber blocks 6 to grip the needle 4.
GB2503444A 1944-12-13 1944-12-13 Improvements in and relating to gramophone pick-ups or recorders Expired GB586102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2503444A GB586102A (en) 1944-12-13 1944-12-13 Improvements in and relating to gramophone pick-ups or recorders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2503444A GB586102A (en) 1944-12-13 1944-12-13 Improvements in and relating to gramophone pick-ups or recorders

Publications (1)

Publication Number Publication Date
GB586102A true GB586102A (en) 1947-03-06

Family

ID=10221149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2503444A Expired GB586102A (en) 1944-12-13 1944-12-13 Improvements in and relating to gramophone pick-ups or recorders

Country Status (1)

Country Link
GB (1) GB586102A (en)

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