GB1442761A - Tape drive equipments - Google Patents

Tape drive equipments

Info

Publication number
GB1442761A
GB1442761A GB966473A GB966473A GB1442761A GB 1442761 A GB1442761 A GB 1442761A GB 966473 A GB966473 A GB 966473A GB 966473 A GB966473 A GB 966473A GB 1442761 A GB1442761 A GB 1442761A
Authority
GB
United Kingdom
Prior art keywords
film
loop
gate
rollers
pivoted
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
GB966473A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB966473A priority Critical patent/GB1442761A/en
Priority to DE19732325381 priority patent/DE2325381A1/en
Priority to CA189,421A priority patent/CA1005471A/en
Priority to NL7400702A priority patent/NL7400702A/xx
Priority to IT6715574A priority patent/IT1004753B/en
Priority to SE7401319A priority patent/SE404557B/en
Priority to AU65493/74A priority patent/AU6549374A/en
Priority to CH260674A priority patent/CH581328A5/xx
Priority to FR7406429A priority patent/FR2219098B1/fr
Publication of GB1442761A publication Critical patent/GB1442761A/en
Expired 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
    • G03B1/00—Film strip handling
    • G03B1/56—Threading; Loop forming

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Advancing Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1442761 Cinefilm apparatus MARCONI CO Ltd 12 Oct 1973 [27 Feb 1973] 9664/73 Heading G2E A film projector comprises a pivotally mounted arm 32 (of which only the film abutting portion is shown) for forming a first loop 33 of excess magnitude in a film 1 on one side of a projection gate 3, means e.g. pinch rollers 6, 7 for preventing movement of the film at a predetermined distance from the gate on the opposite side to the first loop, and means for transferring excess film from the first loop 33, through the gate 3, to form a second loop 34. In operation initially the gate 3 is open and rollers 6, 7 are separated. Arm 32 is pivoted to form a loop containing as much film as both final loops 33, 34. Simultaneously rollers 9, 10 are pivoted to engage the film and form a damping loop. Roller 7 then moves vertically and co-operates with roller 6 to pinch the film. A film transport 5 moves the film through the gate to form the two loops.
GB966473A 1973-02-27 1973-02-27 Tape drive equipments Expired GB1442761A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB966473A GB1442761A (en) 1973-02-27 1973-02-27 Tape drive equipments
DE19732325381 DE2325381A1 (en) 1973-02-27 1973-05-18 BELT DRIVE DEVICE
CA189,421A CA1005471A (en) 1973-02-27 1974-01-03 Tape drive equipments
NL7400702A NL7400702A (en) 1973-02-27 1974-01-18
IT6715574A IT1004753B (en) 1973-02-27 1974-01-18 EQUIPMENT FOR DRIVING A TAPE PARTICULARLY OF A MOVIE FILM INTO A PROJECTOR
SE7401319A SE404557B (en) 1973-02-27 1974-01-31 BAND OPERATING DEVICE INCLUDING DEVICES FOR SUPPLYING SLIP FORMATION
AU65493/74A AU6549374A (en) 1973-02-27 1974-02-12 Tape drive equipmants
CH260674A CH581328A5 (en) 1973-02-27 1974-02-25
FR7406429A FR2219098B1 (en) 1973-02-27 1974-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB966473A GB1442761A (en) 1973-02-27 1973-02-27 Tape drive equipments

Publications (1)

Publication Number Publication Date
GB1442761A true GB1442761A (en) 1976-07-14

Family

ID=9876376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB966473A Expired GB1442761A (en) 1973-02-27 1973-02-27 Tape drive equipments

Country Status (9)

Country Link
AU (1) AU6549374A (en)
CA (1) CA1005471A (en)
CH (1) CH581328A5 (en)
DE (1) DE2325381A1 (en)
FR (1) FR2219098B1 (en)
GB (1) GB1442761A (en)
IT (1) IT1004753B (en)
NL (1) NL7400702A (en)
SE (1) SE404557B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150886A (en) * 1976-08-26 1979-04-24 Airborne Mfg. Co. Motion picture projector system
AT369174B (en) * 1979-07-30 1982-12-10 Moviecam Kinematograph FILM RECORDING CAMERA

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684234A (en) * 1949-05-16 1952-12-17 Sargrove Electronics Ltd Improvements in and relating to a control mechanism for controlling a loop in a web of material
GB772706A (en) * 1955-07-06 1957-04-17 Steatit Magnesia Ag Improvements relating to motion picture projectors
FR1267927A (en) * 1960-06-16 1961-07-28 Electronique & Automatisme Sa Tape unwinder control system
FR2049710A5 (en) * 1969-06-02 1971-03-26 Minnesota Mining & Mfg
US3640439A (en) * 1970-02-06 1972-02-08 Eastman Kodak Co Device for advancing an endless web of flexible strip material

Also Published As

Publication number Publication date
NL7400702A (en) 1974-08-29
FR2219098B1 (en) 1976-06-25
CH581328A5 (en) 1976-10-29
AU6549374A (en) 1975-08-14
FR2219098A1 (en) 1974-09-20
DE2325381A1 (en) 1974-09-19
IT1004753B (en) 1976-07-20
CA1005471A (en) 1977-02-15
SE404557B (en) 1978-10-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee