GB370342A - Driving drum for magnetic talking machines, the sound records of which are driven by frictional forces - Google Patents

Driving drum for magnetic talking machines, the sound records of which are driven by frictional forces

Info

Publication number
GB370342A
GB370342A GB2868831A GB2868831A GB370342A GB 370342 A GB370342 A GB 370342A GB 2868831 A GB2868831 A GB 2868831A GB 2868831 A GB2868831 A GB 2868831A GB 370342 A GB370342 A GB 370342A
Authority
GB
United Kingdom
Prior art keywords
drum
driven
talking machines
frictional forces
driving drum
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
GB2868831A
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.)
STILLE INV S Ltd
Original Assignee
STILLE INV S 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 STILLE INV S Ltd filed Critical STILLE INV S Ltd
Publication of GB370342A publication Critical patent/GB370342A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal

Landscapes

  • Pulleys (AREA)

Abstract

370,342. Driving-pulleys or friction wheels. STILLE INVENTIONS, Ltd., 35, Little Newport Street, London. Oct. 15, 1931, No. 28688. Convention date, Oct. 15, 1930. [Class 80 (i).] A drum for driving frictionally a magnetic band record in talking machines has rubber or other elastic friction material fitted into parts of its surface. This material preferably stands above the drum surface, but is compressed flush therewith under the pressure of the record. The drum may be formed with a ring of friction material between two steel discs, or the material may be applied as inserts circumferentially spaced around the drum and may be in two or more rings Z<1>, as shown in the Figure, in staggered relation. The inserts may be formed as circular studs.
GB2868831A 1930-10-16 1931-10-15 Driving drum for magnetic talking machines, the sound records of which are driven by frictional forces Expired GB370342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE566340T 1930-10-16

Publications (1)

Publication Number Publication Date
GB370342A true GB370342A (en) 1932-04-07

Family

ID=34584578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2868831A Expired GB370342A (en) 1930-10-16 1931-10-15 Driving drum for magnetic talking machines, the sound records of which are driven by frictional forces

Country Status (2)

Country Link
DE (1) DE566340C (en)
GB (1) GB370342A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844680C (en) * 1949-06-12 1952-07-24 Eberhard Vollmer Drive device for non-perforated, tape-shaped carriers

Also Published As

Publication number Publication date
DE566340C (en) 1932-12-15

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