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
GB17524/59A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AGfiledCriticalSiemens Schuckertwerke AG
Publication of GB847786ApublicationCriticalpatent/GB847786A/en
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F7/00—Magnets
H01F7/02—Permanent magnets [PM]
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Physics & Mathematics
(AREA)
Electromagnetism
(AREA)
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Recording Or Reproducing By Magnetic Means
(AREA)
Abstract
847,786. Magnetic recording and reproducing apparatus. SIEMENS-SCHUCKERTWERKE A.G. May 22, 1959 [May 23, 1958], No. 17524/59. Drawings to Specification. Class 40 (2). A magnetic record apparatus comprises transducer heads incorporating Hall voltage generators, whereby the signal to noise ratio obtainable enables track widths of 1 mm. to be employed spaced not greater than 2 mm. between centres. In the embodiment described a standard record tape 6.25 mm. wide carries four 1 turn. tracks having 0.75 mm. spaces between each track. The Hall generators permit transducer gaps of the order of 5 Á.
GB17524/59A1958-05-231959-05-22Improvements in or relating to magnetic recording
ExpiredGB847786A
(en)
Improvements in or relating to arrangements for automatically adjusting the spacing between the recording or reproducing head ofa magnetic recording and/or reproducing apparatus andthe magnetic record carrier
Improvements in or relating to arrangements for automatically adjusting the spacing between the recording or reproducing head ofa magnetic recording and/or reproducing apparatus andthe magnetic record carrier