GB942532A - Improvements in and relating to gramophone pickups - Google Patents

Improvements in and relating to gramophone pickups

Info

Publication number
GB942532A
GB942532A GB975359A GB975359A GB942532A GB 942532 A GB942532 A GB 942532A GB 975359 A GB975359 A GB 975359A GB 975359 A GB975359 A GB 975359A GB 942532 A GB942532 A GB 942532A
Authority
GB
United Kingdom
Prior art keywords
assembly
casing
portions
stylus
march
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
GB975359A
Inventor
Jean Walton
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.)
Cosmocord Ltd
Original Assignee
Cosmocord 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 Cosmocord Ltd filed Critical Cosmocord Ltd
Priority to GB975359A priority Critical patent/GB942532A/en
Publication of GB942532A publication Critical patent/GB942532A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04Gramophone pick-ups using a stylus; Recorders using a stylus

Abstract

942,532. Gramophone pick-ups. COSMOCORD Ltd. March 21, 1960 [March 20, 1959], No. 9753/59. Heading H4J. [Also in Division G5] A gramophone pick-up comprises a generally flat piezo-electric assembly 3, Fig. 1, supported between two portions 1d, 1e of a moulded body 1. The portion 1d carries a stylus 4 and is more compliant than the portion 1e and a region of the assembly 3 between the portions 1d, 1e is free of engagement with the body 1. The compliance in the vertical and horizontal directions of portion 1d may be chosen, as desired, and the stylus tip may be largely decoupled mechanically from the assembly 3. Portions 1d, 1e carry the assembly 3 in grooves. Assembly 3 is a twister bimorph. Corner 3a is mounted without restraint. Electrodes on the assembly 3 are electrically connected to contacts 2 which extend through parts 1a, 1b of the body 1. Part 1a is cylindrical for insertion into a tubular portion of a support arm. The body 1 is of plasticized polyvinyl chloride and is located in a casing 6 of moulded polyethylene, a projection 1g on the body entering a recess in the casing 6 and a projection on the casing entering a recess 1h in the body. The stylus tip barely clears the lower face of the casing 6 so that a vertical shock applied to the stylus causes portion 1d to yield to protect the assembly 3. As described in the Provisional Specification, the portion 1e of the body extends along the whole of one edge of the piezo-electric assembly 3 and there is no casing 6. Specification 942,534 is referred to.
GB975359A 1959-03-20 1959-03-20 Improvements in and relating to gramophone pickups Expired GB942532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB975359A GB942532A (en) 1959-03-20 1959-03-20 Improvements in and relating to gramophone pickups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB975359A GB942532A (en) 1959-03-20 1959-03-20 Improvements in and relating to gramophone pickups

Publications (1)

Publication Number Publication Date
GB942532A true GB942532A (en) 1963-11-20

Family

ID=9878120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB975359A Expired GB942532A (en) 1959-03-20 1959-03-20 Improvements in and relating to gramophone pickups

Country Status (1)

Country Link
GB (1) GB942532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444335A (en) * 1965-01-04 1969-05-13 John Walton Phonograph pick-up with de-coupling of the stylus mass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444335A (en) * 1965-01-04 1969-05-13 John Walton Phonograph pick-up with de-coupling of the stylus mass

Similar Documents

Publication Publication Date Title
GB942532A (en) Improvements in and relating to gramophone pickups
GB801361A (en) Improvements in phonograph stylus assemblies
US2507188A (en) Electrostatic phonograph pickup
GB1460912A (en) Spring loaded stylus arm pivot
GB1426328A (en) Stylus arm structure
GB979856A (en) Improvements in or relating to gramophone pick-ups
US2881005A (en) Phonograph pickups
USD243190S (en) Emission electrode holder for electrostatic precipitator
US3404895A (en) Phonograph tone arm and cartridge assembly therefor
GB615979A (en) Improvements in or relating to electrical pick-ups
JPS5934240Y2 (en) capacitor cartridge
GB1521825A (en) Gramophone pickup
GB1339042A (en) Tonearm
GB618973A (en) Improvement in electro-mechanical transducer
GB907915A (en) Improvements in or relating to electromechanical transducers
GB869254A (en) Improvements in and relating to gramophone pickups
GB1205232A (en) New or improved cartridge holder for the pick-up arm of a record player.
US1188079A (en) Sound-box for talking-machines.
ES439613A1 (en) Simplified phonograph
GB1331480A (en) Photograph pickup
GB191405039A (en) Improvements in or relating to Gramophones.
GB919106A (en) Improvements in and relating to gramophone pickups
CA584058A (en) Two needle phonograph pick-up
GB1408341A (en) Sound reproducer which can be inserted into a doll
GB890892A (en) Improvements in phonograph cartridge and stylus