FR2240497A1 - Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre - Google Patents

Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre

Info

Publication number
FR2240497A1
FR2240497A1 FR7328635A FR7328635A FR2240497A1 FR 2240497 A1 FR2240497 A1 FR 2240497A1 FR 7328635 A FR7328635 A FR 7328635A FR 7328635 A FR7328635 A FR 7328635A FR 2240497 A1 FR2240497 A1 FR 2240497A1
Authority
FR
France
Prior art keywords
spool
guide
tape
withdrawl
centre
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.)
Granted
Application number
FR7328635A
Other languages
French (fr)
Other versions
FR2240497B1 (en
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.)
TADIE ANDRE
Original Assignee
TADIE ANDRE
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 TADIE ANDRE filed Critical TADIE ANDRE
Priority to FR7328635A priority Critical patent/FR2240497A1/en
Priority to JP11405873A priority patent/JPS532725B2/ja
Priority to BR629074A priority patent/BR7406290D0/en
Priority to DE19742437181 priority patent/DE2437181A1/en
Publication of FR2240497A1 publication Critical patent/FR2240497A1/en
Application granted granted Critical
Publication of FR2240497B1 publication Critical patent/FR2240497B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/321—Holders for films, e.g. reels, cassettes, spindles
    • G03B21/323—Cassettes
    • G03B21/325—Endless cassettes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The axial length of the outer edge of the spool, starting from the guide, is much greater than the width of the tape and is greater than a guide assembly held against the guide. The spiral pitches of the coil, with the middle spiral pitch separated from the others, are arranged in the section which extends at 60 deg. in relation to the axis of the spool on both sides of the spot diametrically opposed to the point, at which the unwound section of the tape leaves the outer edge of the spool. The guide assembly may lie in the direction of rotation somewhat outside the spot opposite the take-off point.
FR7328635A 1973-08-06 1973-08-06 Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre Granted FR2240497A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7328635A FR2240497A1 (en) 1973-08-06 1973-08-06 Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre
JP11405873A JPS532725B2 (en) 1973-08-06 1973-10-12
BR629074A BR7406290D0 (en) 1973-08-06 1974-07-31 CASSETTE FOR RECORDING TAPE IN CLOSED CIRCUIT
DE19742437181 DE2437181A1 (en) 1973-08-06 1974-08-01 TAPE CASSETTE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328635A FR2240497A1 (en) 1973-08-06 1973-08-06 Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre

Publications (2)

Publication Number Publication Date
FR2240497A1 true FR2240497A1 (en) 1975-03-07
FR2240497B1 FR2240497B1 (en) 1978-01-27

Family

ID=9123617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328635A Granted FR2240497A1 (en) 1973-08-06 1973-08-06 Magnetic tape cassette with single guide spool - has guide with rotary adjustment and tape withdrawl from spool centre

Country Status (4)

Country Link
JP (1) JPS532725B2 (en)
BR (1) BR7406290D0 (en)
DE (1) DE2437181A1 (en)
FR (1) FR2240497A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128539U (en) * 1975-04-14 1976-10-18
JPS51128538U (en) * 1975-04-14 1976-10-18
JPS51128540U (en) * 1975-04-14 1976-10-18
CN102461025B (en) 2009-06-30 2014-10-22 汤姆森特许公司 Method of resending digital signals

Also Published As

Publication number Publication date
DE2437181A1 (en) 1975-03-06
FR2240497B1 (en) 1978-01-27
BR7406290D0 (en) 1975-05-27
JPS532725B2 (en) 1978-01-31
JPS5040120A (en) 1975-04-12

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Legal Events

Date Code Title Description
ST Notification of lapse