Patent · US Expired

Error ribbon elevation and transport mechanism for typewriters and similar machines

US4411542A · kind A · utility

7Cited by

2References

2Claims

0Family size

Assignee

Triumph-Adler A.G. fur Buro- und Informationstechnik · DE

Inventors

Karl Wenderoth · Bad Vilbel, DE
Lothar Kuhn · Frankfurt, DE

Key dates

Filing date	Oct 21, 1981
Grant date	Oct 25, 1983
Priority date	—
Expiry date	Oct 21, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J33/08
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Disclosed is a mechanism so arranged that a relatively weak power source can be employed to effect error ribbon elevation and incremental feed. A bridge which is pivotably mounted on a frame carries a rotatably mounted ratchet and a pivotably mounted pawl which, when the bridge is rotated by a magnet to elevate the bridge, is caused to react with a frame part and pivot relative to and to drive the ratchet to feed ribbon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.