GB871160A - Improvements in and relating to gramophone pick-ups - Google Patents
Improvements in and relating to gramophone pick-upsInfo
- Publication number
- GB871160A GB871160A GB347658A GB347658A GB871160A GB 871160 A GB871160 A GB 871160A GB 347658 A GB347658 A GB 347658A GB 347658 A GB347658 A GB 347658A GB 871160 A GB871160 A GB 871160A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducers
- arm
- stylus
- arms
- pick
- 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
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 abstract 1
- 241001422033 Thestylus Species 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
- H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
871,160. Stereophonic pick-ups. GARRARD ENGINEERING & MANUFACTURING CO. Ltd. Jan. 28, 1959 [Feb. 3, 1958], No. 3476/58. Class 40 (4). A pick-up utilizes two piezo-electric transducers 1 and 2 each with an independent operating arm 12, the arms 12 crossing over each other to form a yoke in which works a single common stylus arm 13. The transducers are twistors clamped between pressure pads 8a and 8b by cover plates 5 and 6 on each of two casing members 3 and 4 bolted together to hold the planes of the transducers at 90 degrees to each other and at 45 degrees to the horizontal. Secured about the end of each transducer is an operating arm 12 of plasticized polyvinylchloride the lowermost ends of these arms being shaped to overlap and slidably engage the downwardly cranked stylus carrying end of the arm 13. The casing members 3 and 4 when bolted together leave a square-sectioned channel into which is push fitted a block 16 containing a resilient plug 15 to mount the stylus arm 13 so that the arm may twist or tilt. A tab at the end of block 16 enables this to be drawn out for easy replacement of stylus arms. Electrical connections are made between strips 10 from the transducers and tag clips 11 on each casing member 3 and 4. The Provisional Specification refers to the use of variable reluctance and moving-coil transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB347658A GB871160A (en) | 1958-02-03 | 1958-02-03 | Improvements in and relating to gramophone pick-ups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB347658A GB871160A (en) | 1958-02-03 | 1958-02-03 | Improvements in and relating to gramophone pick-ups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB871160A true GB871160A (en) | 1961-06-21 |
Family
ID=9759054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB347658A Expired GB871160A (en) | 1958-02-03 | 1958-02-03 | Improvements in and relating to gramophone pick-ups |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB871160A (en) |
-
1958
- 1958-02-03 GB GB347658A patent/GB871160A/en not_active Expired
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