GB942532A - Improvements in and relating to gramophone pickups - Google Patents
Improvements in and relating to gramophone pickupsInfo
- 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
Links
- 241001422033 Thestylus Species 0.000 abstract 3
- 241001589086 Bellapiscis medius Species 0.000 abstract 1
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
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.
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)
| 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 |
-
1959
- 1959-03-20 GB GB975359A patent/GB942532A/en not_active Expired
Cited By (1)
| 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 |
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