Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
1974-06-17
1976-04-06
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Head
Head accessory
360128, 360 2, G11B 1560, G11B 2504, G11B 1900
Patent
active
039494241
ABSTRACT:
A guide member for use with a magnetic reading and/or recording head of a ticket issuing machine is made of material of low permeability and has a portion of material of high permeability. When the guide member is located adjacent a magnetic read/record head and is adjusted so that the material of high permeability is in register with the gap of the head, the separation loss between the head and a ticket, coated with a magnetisable material and passing between the head and the guide, is reduced to a minimum.
REFERENCES:
patent: 2897288 (1959-07-01), Wijchman
patent: 3369081 (1968-02-01), Atsumi
patent: 3439126 (1969-04-01), Atsumi
patent: 3678482 (1972-07-01), Billawala
Bell Punch Company Limited
Brown Laurence R.
Eddleman Alfred H.
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