SE8004202L - MAGNETIC LIGHT FOR GRAMPHONE PICKUP WITH MUCH MAGNET, AS WELL SET FOR ITS MANUFACTURING - Google Patents
MAGNETIC LIGHT FOR GRAMPHONE PICKUP WITH MUCH MAGNET, AS WELL SET FOR ITS MANUFACTURINGInfo
- Publication number
- SE8004202L SE8004202L SE8004202A SE8004202A SE8004202L SE 8004202 L SE8004202 L SE 8004202L SE 8004202 A SE8004202 A SE 8004202A SE 8004202 A SE8004202 A SE 8004202A SE 8004202 L SE8004202 L SE 8004202L
- Authority
- SE
- Sweden
- Prior art keywords
- magnet
- cantilever
- free space
- stylus
- gramphone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
- H04R1/18—Holders for styli; Mounting holders on transducers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Sewing Machines And Sewing (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Toys (AREA)
Abstract
A stylus assembly for a magnetic cartridge comprises a stylus cantilever (2) formed from a thermoplastics material, a magnet (1) mounted at one end of the cantilever (2), and a stylus supported at the opposite end 3 of the cantilever (2). The portion of the magnet (1) adjacent the cantilever (2) is encased in a mass of thermoplastics material integral with the cantilever (2) whereas the portion of the magnet (1) remote from the cantilever (2) is left exposed. This exposed portion of the magnet is used to mount the stylus assembly in a damper of the cartridge. The stylus assembly is made using a mould which has a free space corresponding to the desired shape of the cantilever (2), and a chamber arranged to receive the magnet (1) and into which said free space opens. The zone of the chamber remote from the free space closely surrounds the portion of the magnet (1) received thereby whereas the chamber zone adjacent the free space provides a space around the corresponding magnet portion. This latter space and said free space are filled with a thermoplastics material to form the cantilever with the magnet attached. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7916095A FR2460020A1 (en) | 1979-06-22 | 1979-06-22 | NEEDLES FOR MAGNETIC PLAYING HEAD WITH MOBILE MAGNET |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE8004202L true SE8004202L (en) | 1980-12-23 |
Family
ID=9226989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8004202A SE8004202L (en) | 1979-06-22 | 1980-06-05 | MAGNETIC LIGHT FOR GRAMPHONE PICKUP WITH MUCH MAGNET, AS WELL SET FOR ITS MANUFACTURING |
Country Status (24)
| Country | Link |
|---|---|
| JP (1) | JPS563407A (en) |
| AT (1) | AT376053B (en) |
| AU (1) | AU5952880A (en) |
| BE (1) | BE883934A (en) |
| BR (1) | BR8003835A (en) |
| CA (1) | CA1169781A (en) |
| CH (1) | CH637781A5 (en) |
| DD (1) | DD151523A5 (en) |
| DE (1) | DE3022208A1 (en) |
| DK (1) | DK264280A (en) |
| ES (1) | ES492665A0 (en) |
| FI (1) | FI801980A7 (en) |
| FR (1) | FR2460020A1 (en) |
| GB (1) | GB2055011B (en) |
| GR (1) | GR68191B (en) |
| IL (1) | IL60313A (en) |
| IT (1) | IT1150991B (en) |
| MA (1) | MA18881A1 (en) |
| NL (1) | NL8003577A (en) |
| NO (1) | NO801787L (en) |
| OA (1) | OA06547A (en) |
| PT (1) | PT71356A (en) |
| SE (1) | SE8004202L (en) |
| YU (1) | YU160380A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2498517B2 (en) * | 1981-01-23 | 1986-11-07 | Zafira France | NEEDLES FOR MAGNETIC READING HEAD WITH MOBILE MAGNET |
| JPS5678671A (en) * | 1979-12-03 | 1981-06-27 | Nippon Steel Corp | Treatment for making waste containing heavy metal unharmful |
| JPS56167009U (en) * | 1980-05-10 | 1981-12-10 | ||
| GB2120446A (en) * | 1982-04-08 | 1983-11-30 | Rca Corp | Holding apparatus for a disc record signal pickup stylus |
| FR2568711B1 (en) * | 1984-07-31 | 1989-06-16 | Zafira | PROCESS AND DEVICE FOR MANUFACTURING ELLIPTICAL READING DIAMONDS AND ELLIPTICAL DIAMONDS THUS OBTAINED |
| ES2680620T3 (en) | 2011-01-12 | 2018-09-10 | Companie Chomarat | Laminated structures of composite material and methods of manufacturing and using them |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL182515C (en) * | 1973-07-09 | 1988-03-16 | Sony Corp | NEEDLE CARRIER FOR A GROOVE TABLE. |
-
1979
- 1979-06-22 FR FR7916095A patent/FR2460020A1/en active Granted
- 1979-11-05 JP JP14317179A patent/JPS563407A/en active Pending
-
1980
- 1980-06-05 SE SE8004202A patent/SE8004202L/en not_active Application Discontinuation
- 1980-06-06 PT PT71356A patent/PT71356A/en unknown
- 1980-06-06 GR GR62141A patent/GR68191B/el unknown
- 1980-06-13 DE DE19803022208 patent/DE3022208A1/en not_active Withdrawn
- 1980-06-15 IL IL60313A patent/IL60313A/en unknown
- 1980-06-17 NO NO801787A patent/NO801787L/en unknown
- 1980-06-18 YU YU01603/80A patent/YU160380A/en unknown
- 1980-06-18 OA OA57132A patent/OA06547A/en unknown
- 1980-06-18 DD DD80221938A patent/DD151523A5/en unknown
- 1980-06-19 BR BR8003835A patent/BR8003835A/en unknown
- 1980-06-19 FI FI801980A patent/FI801980A7/en not_active Application Discontinuation
- 1980-06-20 CA CA000354701A patent/CA1169781A/en not_active Expired
- 1980-06-20 CH CH476680A patent/CH637781A5/en not_active IP Right Cessation
- 1980-06-20 DK DK264280A patent/DK264280A/en not_active Application Discontinuation
- 1980-06-20 MA MA19079A patent/MA18881A1/en unknown
- 1980-06-20 GB GB8020351A patent/GB2055011B/en not_active Expired
- 1980-06-20 BE BE0/201116A patent/BE883934A/en not_active IP Right Cessation
- 1980-06-20 NL NL8003577A patent/NL8003577A/en not_active Application Discontinuation
- 1980-06-20 ES ES492665A patent/ES492665A0/en active Granted
- 1980-06-20 IT IT22907/80A patent/IT1150991B/en active
- 1980-06-23 AT AT0327680A patent/AT376053B/en not_active IP Right Cessation
- 1980-06-23 AU AU59528/80A patent/AU5952880A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| OA06547A (en) | 1981-07-31 |
| NO801787L (en) | 1981-03-03 |
| ES8200781A1 (en) | 1981-11-16 |
| FR2460020B1 (en) | 1983-11-18 |
| ES492665A0 (en) | 1981-11-16 |
| BR8003835A (en) | 1981-01-13 |
| GB2055011A (en) | 1981-02-18 |
| YU160380A (en) | 1983-02-28 |
| GR68191B (en) | 1981-11-09 |
| DK264280A (en) | 1980-12-23 |
| DD151523A5 (en) | 1981-10-21 |
| CH637781A5 (en) | 1983-08-15 |
| DE3022208A1 (en) | 1981-02-12 |
| AU5952880A (en) | 1981-01-08 |
| IL60313A (en) | 1983-09-30 |
| IT8022907A0 (en) | 1980-06-20 |
| NL8003577A (en) | 1980-12-24 |
| IL60313A0 (en) | 1980-09-16 |
| FR2460020A1 (en) | 1981-01-16 |
| FI801980A7 (en) | 1981-01-01 |
| PT71356A (en) | 1980-07-01 |
| ATA327680A (en) | 1984-02-15 |
| MA18881A1 (en) | 1980-12-31 |
| CA1169781A (en) | 1984-06-26 |
| GB2055011B (en) | 1984-01-04 |
| IT1150991B (en) | 1986-12-17 |
| JPS563407A (en) | 1981-01-14 |
| AT376053B (en) | 1984-10-10 |
| BE883934A (en) | 1980-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
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