FR722258A - Constant speed film drive mechanism - Google Patents

Constant speed film drive mechanism

Info

Publication number
FR722258A
FR722258A FR722258DA FR722258A FR 722258 A FR722258 A FR 722258A FR 722258D A FR722258D A FR 722258DA FR 722258 A FR722258 A FR 722258A
Authority
FR
France
Prior art keywords
drive mechanism
constant speed
film drive
speed film
constant
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
Other languages
French (fr)
Inventor
Arnold Poulsen
Axel Carl Georg Petersen
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 filed Critical
Application granted granted Critical
Publication of FR722258A publication Critical patent/FR722258A/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
    • G11B15/46—Controlling, regulating, or indicating speed
FR722258D 1930-09-01 1931-09-01 Constant speed film drive mechanism Expired FR722258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE722258X 1930-09-01

Publications (1)

Publication Number Publication Date
FR722258A true FR722258A (en) 1932-03-15

Family

ID=6630975

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722258D Expired FR722258A (en) 1930-09-01 1931-09-01 Constant speed film drive mechanism

Country Status (1)

Country Link
FR (1) FR722258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966125C (en) * 1938-03-23 1957-07-11 Film guide for devices with a flywheel dragged over a smooth roller and e
DE1159023B (en) * 1960-06-27 1963-12-12 Siemens Ag Magnetic recorder for perforated tape-shaped recording media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966125C (en) * 1938-03-23 1957-07-11 Film guide for devices with a flywheel dragged over a smooth roller and e
DE1159023B (en) * 1960-06-27 1963-12-12 Siemens Ag Magnetic recorder for perforated tape-shaped recording media

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