GB1312876A – Automatic control system for loading and unloading a magnetic tape receiver spool in a digital recorder equipment
– Google Patents
GB1312876A – Automatic control system for loading and unloading a magnetic tape receiver spool in a digital recorder equipment
– Google Patents
Automatic control system for loading and unloading a magnetic tape receiver spool in a digital recorder equipment
Info
Publication number
GB1312876A
GB1312876A
GB3308771A
GB3308771A
GB1312876A
GB 1312876 A
GB1312876 A
GB 1312876A
GB 3308771 A
GB3308771 A
GB 3308771A
GB 3308771 A
GB3308771 A
GB 3308771A
GB 1312876 A
GB1312876 A
GB 1312876A
Authority
GB
United Kingdom
Prior art keywords
tape
unloading
spool
photo
suction
Prior art date
1970-07-15
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
GB3308771A
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.)
INT POUR LINFORMATIQUE COMP
Original Assignee
INT POUR LINFORMATIQUE COMP
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.)
1970-07-15
Filing date
1971-07-14
Publication date
1973-04-11
1971-07-14
Application filed by INT POUR LINFORMATIQUE COMP
filed
Critical
INT POUR LINFORMATIQUE COMP
1973-04-11
Publication of GB1312876A
publication
Critical
patent/GB1312876A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G11B15/60—Guiding record carrier
G11B15/66—Threading; Loading; Automatic self-loading
G11B15/67—Threading; Loading; Automatic self-loading by extracting end of record carrier from container or spool
G11B15/671—Threading; Loading; Automatic self-loading by extracting end of record carrier from container or spool using pneumatic means
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
G11B15/56—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 the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
G11B15/58—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 the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith with vacuum column
Abstract
1312876 Recording and playback COMPAGNIE INTERNATIONALE POUR L’INFORMATIQUE 14 July 1971 [15 July 1970] 33087/71 Heading G5R Tape is loaded/unloaded in a recorder by an automatically controlled pneumatic system. In the arrangement shown, suction is initially applied to the hub of the take up spool 3 so that the tape end will bind to the spool when merely brought close to it. Suction is then applied to the upstream chamber 4 to cause a loop to be formed therein; the downstream chambre 6 is meanwhile operated at reduced suction, but when the tape blocks a lamp/photo-cell path 210/110 the output signal resulting is used to cause a similar loop to be formed in chamber 6. Loading terminates when a mark on the tape reflects light from lamp 120 to photo-cell 121. For unloading, the tape is run at high speed until the reflecting mark is in the operative position whereupon the speed is reduced and the chambers vented. The signal from photo-cell 110 as the tape leaves chamber 4 is used to terminate the unloading. Linear tape position sensors (e.g. 25, Fig. 2, not shown) function in servocontrolled spool drive systems (Fig. 6, not shown) to maintain constant loop lengths in normal operation of the recorder. The electrically controlled air-valve system is described with reference to, Fig. 4 (not shown), and the control circuitry with reference to, Fig. 7 (not shown).
GB3308771A
1970-07-15
1971-07-14
Automatic control system for loading and unloading a magnetic tape receiver spool in a digital recorder equipment
Expired
GB1312876A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR7026002A
FR2097604A5
(en)
1970-07-15
1970-07-15
Publications (1)
Publication Number
Publication Date
GB1312876A
true
GB1312876A
(en)
1973-04-11
Family
ID=9058692
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3308771A
Expired
GB1312876A
(en)
1970-07-15
1971-07-14
Automatic control system for loading and unloading a magnetic tape receiver spool in a digital recorder equipment
Country Status (5)
Country
Link
US
(1)
US3751604A
(en)
DE
(1)
DE2135507C3
(en)
FR
(1)
FR2097604A5
(en)
GB
(1)
GB1312876A
(en)
NL
(1)
NL158957B
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
IT973082B
(en)
*
1972-12-29
1974-06-10
Honeywell Inf Systems
MAGNETIC TAPE TRANSFER DEVICE OF MAGNETIC TAPE RECORDING UNIT
US3952968A
(en)
*
1974-04-10
1976-04-27
Data General Corporation
Tape transport system
US3948463A
(en)
*
1974-04-10
1976-04-06
Data General Corporation
Web transport load and unload system
US3898693A
(en)
*
1974-08-26
1975-08-05
Video Memory Corp
Video recorder/reproducer transport using vacuum columns and servos
IT1027858B
(en)
*
1974-12-20
1978-12-20
Honeywell Inf Systems
SEMI AUTOMATIC LOADING OF MAGNETIC TAPE UNIT
US4176382A
(en)
*
1978-05-22
1979-11-27
International Business Machines Corporation
High performance tape path for a 19 inch tape recorder
US5430211A
(en)
*
1993-10-29
1995-07-04
The Dow Chemical Company
Process of preparing ethylbenzene or substituted derivatives thereof
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3225990A
(en)
*
1962-12-24
1965-12-28
Ibm
Digital tape drive system
US3393878A
(en)
*
1966-07-15
1968-07-23
Ibm
Pneumatically threaded tape drive
US3617650A
(en)
*
1968-12-04
1971-11-02
Digital Information Devices
Automatic threading mechanism using three tape loops
US3619625A
(en)
*
1969-01-21
1971-11-09
Sycor Inc
Tape recorder apparatus with optical sensing means for tape control
US3545700A
(en)
*
1969-05-09
1970-12-08
Potter Instrument Co Inc
Reel servo system
US3643890A
(en)
*
1969-11-18
1972-02-22
Certex Inc
Apparatus for the automatic threading of a flexible medium
1970
1970-07-15
FR
FR7026002A
patent/FR2097604A5/fr
not_active
Expired
1971
1971-07-12
US
US00161436A
patent/US3751604A/en
not_active
Expired – Lifetime
1971-07-14
GB
GB3308771A
patent/GB1312876A/en
not_active
Expired
1971-07-14
NL
NL7109703.A
patent/NL158957B/en
not_active
IP Right Cessation
1971-07-15
DE
DE2135507A
patent/DE2135507C3/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2135507A1
(en)
1972-01-20
NL158957B
(en)
1978-12-15
DE2135507C3
(en)
1975-05-28
US3751604A
(en)
1973-08-07
NL7109703A
(en)
1972-01-18
FR2097604A5
(en)
1972-03-03
DE2135507B2
(en)
1974-10-17
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Legal Events
Date
Code
Title
Description
1973-08-22
PS
Patent sealed [section 19, patents act 1949]
1984-03-07
PCNP
Patent ceased through non-payment of renewal fee
