GB947056A - Improvements in or relating to pick-up heads for record players - Google Patents
Improvements in or relating to pick-up heads for record playersInfo
- Publication number
- GB947056A GB947056A GB10304/60A GB1030460A GB947056A GB 947056 A GB947056 A GB 947056A GB 10304/60 A GB10304/60 A GB 10304/60A GB 1030460 A GB1030460 A GB 1030460A GB 947056 A GB947056 A GB 947056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pick
- transducers
- stylus
- playback
- 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
- 230000007306 turnover Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000002184 metal Substances 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
- H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Unwinding Of Filamentary Materials (AREA)
Abstract
947,056. Pick-ups. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 23, 1960 [March 26, 1959], No. 10304/60. Heading H4J. [Also in Division G5] A turn-over gramophone pick-up carries styli 5, 6, coupled to a pair of torsional piezoelectric transducers 14 through a coupling member 17, such that stylus 5, when turned to the operative position, actuates both transducers in parallel for playback of lateral cut monophonic record grooves and stylus 6, shown in theoperative position actuates the transducers independently for playback of stereophonic record grooves. The metal rear support 15 is anchored rigidly to the pick-up unit (Fig. 1, not shown) while the support 16 is resilient. The turn-over body includes a shaped exterior 10 which engages with a blade spring 9 which, in the stereophonic position (Fig. 2) tends to rotate the body further to the right, but is prevented by a screw 12 providing azimuthal adjustment to the position giving minimum cross-talk between the channels.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL237583 | 1959-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947056A true GB947056A (en) | 1964-01-22 |
Family
ID=19751636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10304/60A Expired GB947056A (en) | 1959-03-26 | 1960-03-23 | Improvements in or relating to pick-up heads for record players |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3105691A (en) |
| BE (1) | BE588997A (en) |
| CH (1) | CH381877A (en) |
| ES (1) | ES256751A1 (en) |
| FR (1) | FR1251910A (en) |
| GB (1) | GB947056A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3334904A (en) * | 1964-05-21 | 1967-08-08 | Electro Voice | Phonograph cartridge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756058A (en) * | 1950-01-14 | 1956-07-24 | Webster Electric Co Inc | Transducer supporting and positioning means |
| US2793254A (en) * | 1955-04-07 | 1957-05-21 | Electro Voice | Cartridge case and turnover mechanism |
-
1960
- 1960-02-09 US US7572A patent/US3105691A/en not_active Expired - Lifetime
- 1960-03-23 ES ES0256751A patent/ES256751A1/en not_active Expired
- 1960-03-23 GB GB10304/60A patent/GB947056A/en not_active Expired
- 1960-03-23 CH CH326960A patent/CH381877A/en unknown
- 1960-03-24 BE BE588997A patent/BE588997A/en unknown
- 1960-03-24 FR FR822326A patent/FR1251910A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE588997A (en) | 1960-09-26 |
| US3105691A (en) | 1963-10-01 |
| ES256751A1 (en) | 1960-06-01 |
| CH381877A (en) | 1964-09-15 |
| FR1251910A (en) | 1961-01-20 |
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