GB1442761A – Tape drive equipments
– Google Patents
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
1973-02-27
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.)
1973-02-27
Filing date
1973-02-27
Publication date
1976-07-14
1973-02-27
Application filed by Marconi Co Ltd
filed
Critical
Marconi Co Ltd
1973-02-27
Priority to GB966473A
priority
Critical
patent/GB1442761A/en
1973-05-18
Priority to DE19732325381
priority
patent/DE2325381A1/en
1974-01-03
Priority to CA189,421A
priority
patent/CA1005471A/en
1974-01-18
Priority to IT6715574A
priority
patent/IT1004753B/en
1974-01-18
Priority to NL7400702A
priority
patent/NL7400702A/xx
1974-01-31
Priority to SE7401319A
priority
patent/SE404557B/en
1974-02-12
Priority to AU65493/74A
priority
patent/AU6549374A/en
1974-02-25
Priority to CH260674A
priority
patent/CH581328A5/xx
1974-02-26
Priority to FR7406429A
priority
patent/FR2219098B1/fr
1976-07-14
Publication of GB1442761A
publication
Critical
patent/GB1442761A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
IT6715574A
IT1004753B
(en)
1973-02-27
1974-01-18
EQUIPMENT FOR DRIVING A TAPE PARTICULARLY OF A MOVIE FILM INTO A PROJECTOR
NL7400702A
NL7400702A
(en)
1973-02-27
1974-01-18
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
1973
1973-02-27
GB
GB966473A
patent/GB1442761A/en
not_active
Expired
1973-05-18
DE
DE19732325381
patent/DE2325381A1/en
active
Pending
1974
1974-01-03
CA
CA189,421A
patent/CA1005471A/en
not_active
Expired
1974-01-18
IT
IT6715574A
patent/IT1004753B/en
active
1974-01-18
NL
NL7400702A
patent/NL7400702A/xx
unknown
1974-01-31
SE
SE7401319A
patent/SE404557B/en
unknown
1974-02-12
AU
AU65493/74A
patent/AU6549374A/en
not_active
Expired
1974-02-25
CH
CH260674A
patent/CH581328A5/xx
not_active
IP Right Cessation
1974-02-26
FR
FR7406429A
patent/FR2219098B1/fr
not_active
Expired
Also Published As
Publication number
Publication date
SE404557B
(en)
1978-10-09
FR2219098B1
(en)
1976-06-25
FR2219098A1
(en)
1974-09-20
AU6549374A
(en)
1975-08-14
CA1005471A
(en)
1977-02-15
CH581328A5
(en)
1976-10-29
NL7400702A
(en)
1974-08-29
DE2325381A1
(en)
1974-09-19
IT1004753B
(en)
1976-07-20
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Legal Events
Date
Code
Title
Description
1976-11-24
PS
Patent sealed
1983-05-25
PCNP
Patent ceased through non-payment of renewal fee
