GB808993A - Improvements relating to pick-up arms for gramophones - Google Patents

Improvements relating to pick-up arms for gramophones

Info

Publication number
GB808993A
GB808993A GB2333256A GB2333256A GB808993A GB 808993 A GB808993 A GB 808993A GB 2333256 A GB2333256 A GB 2333256A GB 2333256 A GB2333256 A GB 2333256A GB 808993 A GB808993 A GB 808993A
Authority
GB
United Kingdom
Prior art keywords
pick
arm
lugs
pivot pin
lever
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
GB2333256A
Inventor
Edward Thomas Humby
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.)
COLLARO Ltd
Original Assignee
COLLARO Ltd
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 COLLARO Ltd filed Critical COLLARO Ltd
Priority to GB2333256A priority Critical patent/GB808993A/en
Publication of GB808993A publication Critical patent/GB808993A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B3/14—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using effects of gravity or inertia, e.g. counterweight

Landscapes

  • Transmission Devices (AREA)

Abstract

808,993. Automatic gramophones. COLLARO Ltd. July 18, 1957 [July 27, 1956], No. 23332/56. Class 40 (2). A gramophone pick-up arm is pivoted at its centre of gravity and incorporates a lever system which displaces the effective point of application of a thrust rod producing rotation of the pick-up arm in a vertical plane. A pick-up arm 1 has a plate 5 secured to it, resilient bushes 8 are interposed between the two details. The plate 5 has two lugs 9 connected by a pivot pin 10 to a second pair of lugs 11 extending upwards from a collar 13 which is clamped to a bush 19 free to rotate about a support 20. Integral with the collar 13 is an arm 15 having a pair of lugs 16 supporting a pivot pin 17 carrying a lever 18, the free end of which rests on a push rod 22. A set screw 29 forms an adjustable connection between the lever 18 and'the pick-up arm 1. If " P " is the force in the push rod then the moment of this force about the pivot pin 10 is
GB2333256A 1956-07-27 1956-07-27 Improvements relating to pick-up arms for gramophones Expired GB808993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2333256A GB808993A (en) 1956-07-27 1956-07-27 Improvements relating to pick-up arms for gramophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2333256A GB808993A (en) 1956-07-27 1956-07-27 Improvements relating to pick-up arms for gramophones

Publications (1)

Publication Number Publication Date
GB808993A true GB808993A (en) 1959-02-18

Family

ID=10193904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2333256A Expired GB808993A (en) 1956-07-27 1956-07-27 Improvements relating to pick-up arms for gramophones

Country Status (1)

Country Link
GB (1) GB808993A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227459A (en) * 1963-02-13 1966-01-04 Donald G Haines Tone arm mounting for record players
US3328036A (en) * 1964-09-08 1967-06-27 Warwick Electronics Inc Low mass balanced tone arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227459A (en) * 1963-02-13 1966-01-04 Donald G Haines Tone arm mounting for record players
US3328036A (en) * 1964-09-08 1967-06-27 Warwick Electronics Inc Low mass balanced tone arm

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