Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1985-04-02
1987-03-17
Pieprz, William
Typewriting machines
Sheet or web
For feeding web record-medium
226 86, 226 74, 226196, 16296, 16293, 16373, 16386, B41J 1132, B41J 1134
Patent
active
046503587
ABSTRACT:
A feeder for a printer serves for guiding and/or advancing the record carrier. Tractors (1a and 1b) placed in a pair are provided. The tractors (1a and 1b) have hinged parts which can be adjusted in different hinged positions by pivoting bearings (11). To provide hinged part on printers, particularly dot matrix printers, with simple pivoting bearings that can be produced economically and to eliminate a special fastener for the pivoted positions, a spring steel wire piece (18) cut to length serves as a pivot pin (17) and for fixing of the closed and open end positions of the hinged part (10). The spring steel wire piece (18) is put under tension by bending.
REFERENCES:
patent: 2342477 (1944-02-01), Magnenat
patent: 2442873 (1948-06-01), Graham
patent: 2707800 (1955-05-01), Popper
patent: 2797434 (1957-07-01), Vigmostad
patent: 2987332 (1961-06-01), Bonmartini
patent: 3388420 (1968-06-01), Ballantyne
patent: 3545034 (1970-12-01), Wright
patent: 4390002 (1983-06-01), Daily, III
patent: 4493680 (1985-01-01), Hoffmann
"Snap Close Tractor Lid" Research Disclosure, Aug. 1985, No. 256, Kenneth Mason Publications Ltd., England.
Lohrmann Gerhard
Roehrer Kurt
Mannesmann Aktiengesellschaft
Pieprz William
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