Shifting arrangement for exact space positioning of a writing ca

Details Shifting arrangement for exact space positioning of a writing ca Shifting arrangement for exact space positioning of a writing ca

1977-02-17

1979-03-13

Wright, Jr., Ernest T.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400320, 400903, 318685, 318696, B41J 1900

Patent

active

041439805

ABSTRACT:
A shifting arrangement is provided for the exact space positioning of a writing carriage for office, teletype or data typewriters in which the writing carriage is moved step-by-step alongside of a record structure in accordance with a predetermined character positioning pattern. The writing carriage is driven by a stepping motor which has a rotary field. A specific number of angle positions of the stepping motor field serve as basic advance positions of the stepping motor in order to compensate for the load angle of the stepping motor during running of the writing carriage. Such basic advance positions are assigned to each character positioning point of the positioning pattern. An electronic device is provided for triggering the rotary field of the stepping motor and automatically adjusting this rotary field to the corresponding basic advance position during running and setting the field to a rest position during stopping of the stepping motor in order to correct for the stepping motor load angle.

REFERENCES:
patent: 3541418 (1970-11-01), Agin et al.
patent: 3554347 (1971-01-01), Perkins
patent: 3586953 (1971-06-01), Markkanen et al.
patent: 3748566 (1973-07-01), Brembs
patent: 3950685 (1976-04-01), Kramer
patent: 3986094 (1976-10-01), Quioque et al.
patent: 3991355 (1976-11-01), Reehil et al.
patent: 4004672 (1977-01-01), Hirano et al.

Affiliated with

Also associated with

Rating

Shifting arrangement for exact space positioning of a writing ca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shifting arrangement for exact space positioning of a writing ca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shifting arrangement for exact space positioning of a writing ca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2369493