GB1159386A - Improvements in or relating to Gramophone Transducers - Google Patents
Improvements in or relating to Gramophone TransducersInfo
- Publication number
- GB1159386A GB1159386A GB4786865A GB4786865A GB1159386A GB 1159386 A GB1159386 A GB 1159386A GB 4786865 A GB4786865 A GB 4786865A GB 4786865 A GB4786865 A GB 4786865A GB 1159386 A GB1159386 A GB 1159386A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support member
- stylus
- pick
- holder bar
- mounting structure
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
1,159,386. Gramophone transducers. PLESSEY CO. Ltd. 14 Oct., 1966 [11 Nov., 1965], No. 47868/65. Heading H4J. In a gramophone transducer, a support member 24 yieldingly carriers a stylus-holder bar 1 and the support member 24 is provided with locating means 20, 21 alternatively engageable with means 7 on a mounting structure 5 to permit the stylus-holder bar 1 to be secured in either of two positions. The sensitivity and compliance are different in the two positions. A turnover stereophonic pick-up has the stylus-holder bar 1 integrally connected with the support member 24 by a small diameter flexible neck 4 acting as a universal pivot. The support member 24 is generally cylindrical but has two opposite flats 9 and two locating throats 20, 21. The mounting structure 5 has a channel 6 with two ridges 7, 8. A leaf spring 10 has an end engaging a flat 9. Two piezoelectric "benders" 12 are coupled to the stylus-holder bar 1 by arms of a coupling member 23 having a forked end 13. As shown in full lines a relatively low output high compliance pick-up is obtained. The chain-dot arrangement provides a high output pick-up. The support member 24 is provided with a flap arm (14), Fig. 2 (not shown), by which the support member 24 is rotatable through 180 degrees for placing either an L.P. or coarse groove stylus 2, 3 in operative position. In a modification (not shown) the throats 20, 21 are replaced by flanges, subject to complementary modification of the mounting structure 5. A monaural pick-up having a single transducer element is envisaged.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4786865A GB1159386A (en) | 1965-11-11 | 1965-11-11 | Improvements in or relating to Gramophone Transducers |
| NL6615423A NL6615423A (en) | 1965-11-11 | 1966-11-01 | |
| DE19661547057 DE1547057A1 (en) | 1965-11-11 | 1966-11-10 | Turntable transducer head |
| FR83239A FR1501224A (en) | 1965-11-11 | 1966-11-10 | Sapphire rod for phonographs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4786865A GB1159386A (en) | 1965-11-11 | 1965-11-11 | Improvements in or relating to Gramophone Transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1159386A true GB1159386A (en) | 1969-07-23 |
Family
ID=10446530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4786865A Expired GB1159386A (en) | 1965-11-11 | 1965-11-11 | Improvements in or relating to Gramophone Transducers |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1547057A1 (en) |
| FR (1) | FR1501224A (en) |
| GB (1) | GB1159386A (en) |
| NL (1) | NL6615423A (en) |
-
1965
- 1965-11-11 GB GB4786865A patent/GB1159386A/en not_active Expired
-
1966
- 1966-11-01 NL NL6615423A patent/NL6615423A/xx unknown
- 1966-11-10 FR FR83239A patent/FR1501224A/en not_active Expired
- 1966-11-10 DE DE19661547057 patent/DE1547057A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6615423A (en) | 1967-05-12 |
| DE1547057A1 (en) | 1969-10-23 |
| FR1501224A (en) | 1967-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |