GB1354318A - Phonograph pick-ups - Google Patents

Phonograph pick-ups

Info

Publication number
GB1354318A
GB1354318A GB2131971A GB2131971A GB1354318A GB 1354318 A GB1354318 A GB 1354318A GB 2131971 A GB2131971 A GB 2131971A GB 2131971 A GB2131971 A GB 2131971A GB 1354318 A GB1354318 A GB 1354318A
Authority
GB
United Kingdom
Prior art keywords
pick
arm
stylus
ups
record
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
Application number
GB2131971A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1354318A publication Critical patent/GB1354318A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0434—Passive magnetic bearings with permanent magnets on both parts repelling each other for parts moving linearly
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/09—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using manual means only
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/09—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using manual means only
    • G11B3/092—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using manual means only using mechanical means
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means
    • 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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics

Abstract

1354318 Pick up arm K BRAUN 19 April 1971 [6 Feb 1970] 21319/71 Heading G5R Pick up arm 7 is pivotally mounted on a suspended magnetic element 2 and guided by magnetic guide element 1 such that its stylus 9 follows a radial path on record 12. By means of the repulsion field the magnetic element 2 is maintained in suspension out of contact with polepieces 4, 4<SP>1</SP> of the guide member, and the assembly offers no frictional resistance to the radial movement of the pick up stylus. The guide element 1 can be pivoted about spindle 15 in support pillar 16 for record changing purposes and the pick up arm is counter-balanced by the weight 10.
GB2131971A 1970-02-06 1971-04-19 Phonograph pick-ups Expired GB1354318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2005331A DE2005331C3 (en) 1970-02-06 1970-02-06 Guide device for pickups

Publications (1)

Publication Number Publication Date
GB1354318A true GB1354318A (en) 1974-06-05

Family

ID=5761557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2131971A Expired GB1354318A (en) 1970-02-06 1971-04-19 Phonograph pick-ups

Country Status (4)

Country Link
US (1) US3771797A (en)
DE (1) DE2005331C3 (en)
DK (1) DK129881B (en)
GB (1) GB1354318A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114895A (en) * 1977-07-26 1978-09-19 Lewis Eckhart Phonograph tonearm pickup counterbalance
CH613796A5 (en) * 1978-06-24 1979-10-15 John A Youngs Record player
US4455641A (en) * 1978-09-12 1984-06-19 Dennesen Electrostatics, Inc. Linear tracking system
GB2040056B (en) * 1978-12-23 1984-06-27 Mutoh Ind Ltd Rail type parallel drafting device
GB2040480B (en) * 1978-12-23 1984-06-27 Mutoh Ind Ltd Rail-type parallel drafting device
FR2518790A1 (en) * 1981-12-21 1983-06-24 Karpov Valery Tone arm for audio disc systems - has tracking roller to provide radial motion for disc pick=up
DE3151948C2 (en) * 1981-12-30 1984-09-13 Valerij Georgievi&ccaron; Karpov Tangential tonearm with a slide guide
US4553230A (en) * 1984-08-20 1985-11-12 Paulson Rollie W Vibration free turntable apparatus
US5101398A (en) * 1988-02-19 1992-03-31 Canon Kabushiki Kaisha Device for magnetically guiding movement of a moving body such as an optical head
CN101988545A (en) * 2009-08-06 2011-03-23 马明 Magnetic suspension bearing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413206A (en) * 1943-11-18 1946-12-24 Arthur F Worsham Pickup arm
US3101952A (en) * 1962-02-02 1963-08-27 James E Godfrey Tone-arm for a play-back sound reproducer
US3356372A (en) * 1964-12-09 1967-12-05 Rabinow Jacob Free-tracking phonograph pickup
US3441331A (en) * 1967-10-23 1969-04-29 Gen Motors Corp Gliding shelf

Also Published As

Publication number Publication date
DE2005331A1 (en) 1971-08-19
DK129881B (en) 1974-11-25
DE2005331B2 (en) 1972-06-08
US3771797A (en) 1973-11-13
DE2005331C3 (en) 1973-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees