Device for printing braille

Details Device for printing braille Device for printing braille

1976-12-16

1978-08-22

Sewell, Paul T.

Printing

Embossing or penetrating

Rolling-contact machines

101 28, 101382MV, 400122, B44B 502, B41J 332

Patent

active

041080661

ABSTRACT:
A device for printing in the Braille system. The device includes a magnetic core with an outer layer on the core provided with holes arranged in a pattern for composing a text to be printed. Pins of magnetizable material are adapted to be inserted in the holes. The pins are of a greater length than the thickness of the layer. They are adapted upon contact with the magnetizable core to be attracted thereto to be retained in the holes. The core forms a roller and includes two end portions between which is a depression. An electrical winding is provided in this depression to magnetize the core. The outer layer is of a non-magnetizable material. The core includes a layer of magnetizable material inside of the outer layer to cover the holes therein.

REFERENCES:
patent: 900622 (1908-10-01), Wait
patent: 920872 (1909-05-01), Huntdon et al.
patent: 956140 (1910-04-01), McCann
patent: 1060387 (1913-04-01), Wait
patent: 1726803 (1929-09-01), Bramlette
patent: 3598042 (1971-08-01), Boyd

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