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
GB17354/53A
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.)
Dictaphone Corp
Original Assignee
Dictaphone 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.)
Filing date
Publication date
Application filed by Dictaphone CorpfiledCriticalDictaphone Corp
Publication of GB726276ApublicationCriticalpatent/GB726276A/en
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
G11B5/127—Structure or manufacture of heads, e.g. inductive
G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Magnetic Heads
(AREA)
Abstract
726,276. Magnetic recording and reproducing apparatus. DICTAPHONE CORPORATION. June 23, 1953 [July 14, 1952], No. 17354/53. Class 40 (2) In a magnetic recording system where there is an overlapping of the record medium 10, interruption in the recording or reproduction is effected by providing the transducer 16 with a recessed trailing pole-piece 22.
GB17354/53A1952-07-141953-06-23Improvements in or relating to magnetic recording heads
ExpiredGB726276A
(en)