GB1354218A – Magnetic transducing head and drum assembly
– Google Patents
GB1354218A – Magnetic transducing head and drum assembly
– Google Patents
Magnetic transducing head and drum assembly
Info
Publication number
GB1354218A
GB1354218A
GB4672672A
GB4672672A
GB1354218A
GB 1354218 A
GB1354218 A
GB 1354218A
GB 4672672 A
GB4672672 A
GB 4672672A
GB 4672672 A
GB4672672 A
GB 4672672A
GB 1354218 A
GB1354218 A
GB 1354218A
Authority
GB
United Kingdom
Prior art keywords
head
drum
oct
drum assembly
transducing head
Prior art date
1971-10-12
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
GB4672672A
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.)
Ampex Corp
Original Assignee
Ampex Corp
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.)
1971-10-12
Filing date
1972-10-10
Publication date
1974-06-05
1972-10-10
Application filed by Ampex Corp
filed
Critical
Ampex Corp
1974-06-05
Publication of GB1354218A
publication
Critical
patent/GB1354218A/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
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
G11B5/53—Disposition or mounting of heads on rotating support
Abstract
1354218 Supporting rotary magnetic heads AMPEX CORP 10 Oct 1972 [12 Oct 1971] 46726/72 Heading G5R A magnetic transducer head 15 having a projecting polepiece tip 29 is slid along a radially-extending slot 30 in the rotary head drum 17 of a tape recorder and then locked in position. As shown, a leaf spring 43 presses one or more heads 15 into the associated slot or slots 30 and each head is secured by a screw 44 after being located by the alignment of its curved outer surface 34 with the surface 18 of the drum or by engagement with a stop (130), Fig. 6 (not shown). The head carries a printed circuit board 83 with leads 87 connected to the head winding and to two sockets 51 which engage two pin connectors 49 mounted in the drum.
GB4672672A
1971-10-12
1972-10-10
Magnetic transducing head and drum assembly
Expired
GB1354218A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US18820371A
1971-10-12
1971-10-12
Publications (1)
Publication Number
Publication Date
GB1354218A
true
GB1354218A
(en)
1974-06-05
Family
ID=22692164
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4672672A
Expired
GB1354218A
(en)
1971-10-12
1972-10-10
Magnetic transducing head and drum assembly
Country Status (7)
Country
Link
US
(1)
US3778560A
(en)
JP
(1)
JPS4847315A
(en)
BE
(1)
BE790000A
(en)
DE
(1)
DE2250027A1
(en)
FR
(1)
FR2161912B1
(en)
GB
(1)
GB1354218A
(en)
IT
(1)
IT966265B
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3930270A
(en)
*
1973-07-12
1975-12-30
Matsushita Electric Ind Co Ltd
Tape guiding drums of the magnetic recording and reproducing apparatus
JPS575698Y2
(en)
*
1975-08-02
1982-02-03
US4151570A
(en)
*
1976-03-22
1979-04-24
Ampex Corporation
Automatic scan tracking using a magnetic head supported by a piezoelectric bender element
US4839762A
(en)
*
1986-06-25
1989-06-13
Canon Kabushiki Kaisha
Rotary head device
US4823222A
(en)
*
1987-10-29
1989-04-18
Ampex Corporation
Webbed scanner window
DE4121466A1
(en)
*
1990-06-30
1992-01-09
Gold Star Co
Fixing system for video magnetic head – locates head on drum by profiled guide section and fixes by set screws
DE4414842A1
(en)
*
1994-04-28
1995-11-02
Philips Patentverwaltung
Scanning device for a magnetic tape device
Family Cites Families (14)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2922231A
(en)
*
1956-04-26
1960-01-26
Ibm
Magnetic transducer
US3020359A
(en)
*
1957-10-11
1962-02-06
Ampex
Tape transducing apparatus
US3046359A
(en)
*
1959-02-02
1962-07-24
Rca Corp
Magnetic heads
US3164683A
(en)
*
1959-09-30
1965-01-05
Ampex
Rotary head position determining apparatus
FR1291796A
(en)
*
1960-04-01
1962-04-27
Ampex
Magnetic tape device
NL262916A
(en)
*
1960-04-01
US3207517A
(en)
*
1961-12-29
1965-09-21
Matsushita Electric Ind Co Ltd
Magnetic recording and reproducing apparatus
US3303292A
(en)
*
1963-02-25
1967-02-07
Ampex
Magnetic head assembly
NL132321C
(en)
*
1963-06-05
US3365709A
(en)
*
1963-12-16
1968-01-23
Ampex
High permeability magnetic head assembly
US3412217A
(en)
*
1965-01-27
1968-11-19
Bygdnes Perry Alan
Recorder head with electrically conductive filler wedge
US3422230A
(en)
*
1965-06-18
1969-01-14
Matsushita Electric Ind Co Ltd
Mounting structure for rotating magnetic heads
US3401236A
(en)
*
1965-06-23
1968-09-10
Ampex
Magnetic tape apparatus with head positioning means
US3590168A
(en)
*
1969-01-29
1971-06-29
Ampex
Bidirectional cassette head
0
BE
BE790000D
patent/BE790000A/en
not_active
IP Right Cessation
1971
1971-10-12
US
US00188203A
patent/US3778560A/en
not_active
Expired – Lifetime
1972
1972-10-10
GB
GB4672672A
patent/GB1354218A/en
not_active
Expired
1972-10-10
IT
IT53281/72A
patent/IT966265B/en
active
1972-10-12
FR
FR7236088A
patent/FR2161912B1/fr
not_active
Expired
1972-10-12
JP
JP47101635A
patent/JPS4847315A/ja
active
Pending
1972-10-12
DE
DE2250027A
patent/DE2250027A1/en
active
Pending
Also Published As
Publication number
Publication date
DE2250027A1
(en)
1973-04-26
FR2161912B1
(en)
1976-03-26
JPS4847315A
(en)
1973-07-05
US3778560A
(en)
1973-12-11
BE790000A
(en)
1973-02-01
FR2161912A1
(en)
1973-07-13
IT966265B
(en)
1974-02-11
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(en)
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Legal Events
Date
Code
Title
Description
1974-10-02
PS
Patent sealed [section 19, patents act 1949]
1992-11-11
PE20
Patent expired after termination of 20 years
