GB172296A - Apparatus for the reproduction of sound waves - Google Patents

Apparatus for the reproduction of sound waves

Info

Publication number
GB172296A
GB172296A GB31630/21A GB3163021A GB172296A GB 172296 A GB172296 A GB 172296A GB 31630/21 A GB31630/21 A GB 31630/21A GB 3163021 A GB3163021 A GB 3163021A GB 172296 A GB172296 A GB 172296A
Authority
GB
United Kingdom
Prior art keywords
reproduction
sound waves
waves
sound
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
GB31630/21A
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 GB172296A publication Critical patent/GB172296A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
GB31630/21A 1920-12-02 1921-11-25 Apparatus for the reproduction of sound waves Expired GB172296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE172296X 1920-12-02

Publications (1)

Publication Number Publication Date
GB172296A true GB172296A (en) 1923-02-26

Family

ID=5689977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31630/21A Expired GB172296A (en) 1920-12-02 1921-11-25 Apparatus for the reproduction of sound waves

Country Status (1)

Country Link
GB (1) GB172296A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428449A (en) * 1945-03-02 1947-10-07 Armour Res Found Magnetic recording head
US2603721A (en) * 1947-12-08 1952-07-15 Armour Res Found Magnetic recorder with pressure shoe for record members
US2639333A (en) * 1947-05-12 1953-05-19 Indiana Steel Products Co Magnetic recorder
US2668059A (en) * 1947-04-26 1954-02-02 Int Electronics Co Equipment for use with multitrack magnetic tape records
US2694107A (en) * 1948-01-02 1954-11-09 Armour Res Found Magnetic recorder for use with motion-picture projectors
US2747027A (en) * 1948-11-05 1956-05-22 Armour Res Found Recording apparatus and method for making duplicate magnetic records
US3218440A (en) * 1961-08-31 1965-11-16 Ibm Pressure device for use with transducer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428449A (en) * 1945-03-02 1947-10-07 Armour Res Found Magnetic recording head
US2668059A (en) * 1947-04-26 1954-02-02 Int Electronics Co Equipment for use with multitrack magnetic tape records
US2639333A (en) * 1947-05-12 1953-05-19 Indiana Steel Products Co Magnetic recorder
US2603721A (en) * 1947-12-08 1952-07-15 Armour Res Found Magnetic recorder with pressure shoe for record members
US2694107A (en) * 1948-01-02 1954-11-09 Armour Res Found Magnetic recorder for use with motion-picture projectors
US2747027A (en) * 1948-11-05 1956-05-22 Armour Res Found Recording apparatus and method for making duplicate magnetic records
US3218440A (en) * 1961-08-31 1965-11-16 Ibm Pressure device for use with transducer

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