GB2249655A - Turntable balance arm - Google Patents

Turntable balance arm Download PDF

Info

Publication number
GB2249655A
GB2249655A GB9024146A GB9024146A GB2249655A GB 2249655 A GB2249655 A GB 2249655A GB 9024146 A GB9024146 A GB 9024146A GB 9024146 A GB9024146 A GB 9024146A GB 2249655 A GB2249655 A GB 2249655A
Authority
GB
United Kingdom
Prior art keywords
arm
turntable
pressure
contact point
balance arm
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.)
Withdrawn
Application number
GB9024146A
Other versions
GB9024146D0 (en
Inventor
Dennis Albert Styles
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
Priority to GB9024146A priority Critical patent/GB2249655A/en
Publication of GB9024146D0 publication Critical patent/GB9024146D0/en
Publication of GB2249655A publication Critical patent/GB2249655A/en
Withdrawn legal-status Critical Current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
    • G11B3/16—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 adjustable

Landscapes

  • Details Of Measuring And Other Instruments (AREA)

Abstract

The arm is made of hollow tubing mounted on a swivel spigot over a turntable at 90 degree angle D. The sensor A is connected or can be part of the arm. The balance weight B can be part of or attached to the arm. The Cantelever weight C can also either be pan of or attached to the arm. The Fulcrum D or swivel spigot is the source of balance. The calibration weight D controls the pressure at A. <IMAGE>

Description

This invention is based on a principle that the balance arm in Figure 2.
The Anti Gravity Arm is now the basic source of receiving and relaying information and moves vertical and horizontally and the relay of information relies solely on the sensitivity of the arm design. The turntable is now the source for supplying an uninterrupted constant speed.
Suspension is not critical as the sensitivity of the arm in Figure 2 is such that the the sensor Figure 2 A remains in contact even if the surface area le the record is warped.
The sensitivity of this arm is such that if the source, ie the record is perfect, so is the relay of information perfect.
TURNTABLE BALANCE ARM This invention relates to a Turntable Balance Arm.
Turntable balance arms are well known for there basic features of construction. As shown in Figure 1 they are usually based on the principle of a high accuracy table surface area. The balance arm relays inioraticn from a record grove. Informatibn is received by an information sensor ie stylus cartridge. The information is then transferred via the arm. The arm is usually of the Bantelever principle.
The degree of fine accuracy involved is such that information is received from a record grove as small as 17 billionths of an inch. If the turntable wobbles by as much as 1 millionth of an inch information is lost.

Claims (4)

1. The combination of varying weights at certain points of the arm create a combination of forces, that bend the bars forces. React ion at contact point A Figure 2 is to move vertically elevating this point.
2. The pressure at contact point A as claimed to n Claim 1 is inhibited by pressure a contact point B.
3. Pressure at contact point A as claimed in Claim 1 and 2 is controlled by the calibration weight E.
4. Whether sensor is rising or falling perfect contact is still being made constant+.
GB9024146A 1990-11-06 1990-11-06 Turntable balance arm Withdrawn GB2249655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9024146A GB2249655A (en) 1990-11-06 1990-11-06 Turntable balance arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9024146A GB2249655A (en) 1990-11-06 1990-11-06 Turntable balance arm

Publications (2)

Publication Number Publication Date
GB9024146D0 GB9024146D0 (en) 1990-12-19
GB2249655A true GB2249655A (en) 1992-05-13

Family

ID=10684969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9024146A Withdrawn GB2249655A (en) 1990-11-06 1990-11-06 Turntable balance arm

Country Status (1)

Country Link
GB (1) GB2249655A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417927A (en) * 1933-03-08 1934-10-08 Herbert August Heinrich Schuel Improvements relating to supporting arms for gramophone pick-ups or like devices
GB425283A (en) * 1934-04-09 1935-03-11 Herbert August Heinrich Schuel Improvements relating to gramophones or like apparatus
GB585543A (en) * 1945-02-27 1947-02-11 R A Rothermel Ltd Improvements in and connected with pick-up tone arms
GB1036034A (en) * 1963-03-28 1966-07-13 Rudolf Laeng Pick-up arms for record players and counterweights therefor
US4113265A (en) * 1976-04-12 1978-09-12 Nippon Gakki Seizo Kabushiki Kaisha Tone pickup arm device keeping excellent dynamic lateral balance and damping effect
GB2103861A (en) * 1981-07-29 1983-02-23 Mcintosh Lab Tone arm assembly
GB2110866A (en) * 1981-12-04 1983-06-22 Tesla Kp Flat phonograph tone arm
GB2229848A (en) * 1989-03-29 1990-10-03 Ho Wan Lan Tone arm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417927A (en) * 1933-03-08 1934-10-08 Herbert August Heinrich Schuel Improvements relating to supporting arms for gramophone pick-ups or like devices
GB425283A (en) * 1934-04-09 1935-03-11 Herbert August Heinrich Schuel Improvements relating to gramophones or like apparatus
GB585543A (en) * 1945-02-27 1947-02-11 R A Rothermel Ltd Improvements in and connected with pick-up tone arms
GB1036034A (en) * 1963-03-28 1966-07-13 Rudolf Laeng Pick-up arms for record players and counterweights therefor
US4113265A (en) * 1976-04-12 1978-09-12 Nippon Gakki Seizo Kabushiki Kaisha Tone pickup arm device keeping excellent dynamic lateral balance and damping effect
GB2103861A (en) * 1981-07-29 1983-02-23 Mcintosh Lab Tone arm assembly
GB2110866A (en) * 1981-12-04 1983-06-22 Tesla Kp Flat phonograph tone arm
GB2229848A (en) * 1989-03-29 1990-10-03 Ho Wan Lan Tone arm

Also Published As

Publication number Publication date
GB9024146D0 (en) 1990-12-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)