GB211323A - Improvements in phonograph tone arm extensions and reproducer mountings - Google Patents

Improvements in phonograph tone arm extensions and reproducer mountings

Info

Publication number
GB211323A
GB211323A GB232623A GB232623A GB211323A GB 211323 A GB211323 A GB 211323A GB 232623 A GB232623 A GB 232623A GB 232623 A GB232623 A GB 232623A GB 211323 A GB211323 A GB 211323A
Authority
GB
United Kingdom
Prior art keywords
arm
tone
tube
spherical member
joint
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
GB232623A
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 GB232623A priority Critical patent/GB211323A/en
Publication of GB211323A publication Critical patent/GB211323A/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

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

211,323. Davidson, T. E. Jan. 25, 1923. Sound-boxes, mounting; tone-arm joints.-In order to permit hill-and-dale and zig-zag records to be reproduced on the same machine, a joint is interposed in the tone arm to provide for the usual difference of pitch of groove in these two kinds of record. The joint comprises a socket piece 14 containing a spherical member 15 retained in the socket piece by a set-screw 26, the inner end' 25 of which is shaped like a ball and fits into a recess 24 in the bottom of the spherical member 15. The socket piece 14 is attached to the tone-arm proper 10 by means of a pin 12 fitting into a slot 10<a> and secured in place by a ring 11 rotating on the tone-arm and formed with an inclined slot for the pin 12. The spherical member 15 is integral with a tube 16, and this tube is rotatably connected with one end of an elbow 18, the other end of which is similarly connected with the flared outlet of the sound box. These connections allow for relative rotation; and spring catches 23, 33 are provided to hold these parts in their extreme positions. The play of the joint 14, 15 is limited by an arm 28 on the tube 16 and a stop 27 on the socket 14. The drop of the sound box is also limited bv this arm 28 in conjunction with the head of the set-screw 26.
GB232623A 1923-01-25 1923-01-25 Improvements in phonograph tone arm extensions and reproducer mountings Expired GB211323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB232623A GB211323A (en) 1923-01-25 1923-01-25 Improvements in phonograph tone arm extensions and reproducer mountings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB232623A GB211323A (en) 1923-01-25 1923-01-25 Improvements in phonograph tone arm extensions and reproducer mountings

Publications (1)

Publication Number Publication Date
GB211323A true GB211323A (en) 1924-02-21

Family

ID=9737556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB232623A Expired GB211323A (en) 1923-01-25 1923-01-25 Improvements in phonograph tone arm extensions and reproducer mountings

Country Status (1)

Country Link
GB (1) GB211323A (en)

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