GB371935A - Improved means for making records on gramophones - Google Patents

Improved means for making records on gramophones

Info

Publication number
GB371935A
GB371935A GB304631A GB304631A GB371935A GB 371935 A GB371935 A GB 371935A GB 304631 A GB304631 A GB 304631A GB 304631 A GB304631 A GB 304631A GB 371935 A GB371935 A GB 371935A
Authority
GB
United Kingdom
Prior art keywords
sound
box
bar
boss
turntable
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
GB304631A
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 GB304631A priority Critical patent/GB371935A/en
Publication of GB371935A publication Critical patent/GB371935A/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
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/36—Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves, e.g. by lead-screw

Landscapes

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

Abstract

371,935. Recording sound. FAY, H. P., 55, Holland Park, London. Jan. 30, 1931, No. 3046. [Class 40 (ii).] For enabling a disc record to be made on an ordinary gramophone, a recording sound-box d is traversed radially across a metal or other blank x on a turntable a by means of a tilted rack-bar o pivotally connected at o<1> to the sound-box, and having the teeth on its lower edge engaging with a spiral scroll thread formed on the frusto-conical upper end il of a boss i, which is mounted over the central portion of the turntable and rotates therewith. The boss i has frictional engagement at g<1> with a hollow member g, which is secured to the centre of the blank x by means of a slotted spring bar h clipped on to the turntable spindle b. The bar o passes through a guide slot in a member j, mounted on ball bearings in a recess i<2> in the boss i. A spring-pressed ball p in the part holds the rack-bar o down so that it engages the spiral thread on the side nearest the sound-box d. A pin j<4> supports the bar and holds the teeth clear of the spiral thread, when the sound-box is raised to set the stylus at the periphery of the disc x. The sound-box, which is mounted on the tone-arm c, has a short tubular elbow f<1> fitted over the outer side of the diaphragm and supporting a sounddirecting trumpet f.
GB304631A 1931-01-30 1931-01-30 Improved means for making records on gramophones Expired GB371935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB304631A GB371935A (en) 1931-01-30 1931-01-30 Improved means for making records on gramophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB304631A GB371935A (en) 1931-01-30 1931-01-30 Improved means for making records on gramophones

Publications (1)

Publication Number Publication Date
GB371935A true GB371935A (en) 1932-05-02

Family

ID=9750929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB304631A Expired GB371935A (en) 1931-01-30 1931-01-30 Improved means for making records on gramophones

Country Status (1)

Country Link
GB (1) GB371935A (en)

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