Printing – Inkers – Fountains
Patent
1980-09-09
1982-02-09
Fisher, J. Reed
Printing
Inkers
Fountains
101363, B41F 3104, B41F 3300, B41F 3106, B41L 2706
Patent
active
043145060
ABSTRACT:
To provide an accurate output indication of the actual position of a doctor blade, as distinguished from a commanded position, in which the commanded position is determined by a positioning pin (15) in engagement with a doctor blade which, in turn, is moved into a predetermined position by an actuating pin (10) in end-face engagement therewith, the actuating pin (10) is formed with a through-bore in which a feeler pin is located which is spring-loaded to be pushed at all times into engagement with the positioning pin (15) even though the actuating pin (14) may have withdrawn to a position which is not followed by the positioning pin (15) leaving a gap between the end of the positioning pin (15) and the actuating pin (10). The actual position of the feeler pin (14) can be indicated on a scale by transmission of motion by a double-arm lever which, preferably, has unequal arm length to amplify positional changes of the feeler pin, and, if desired, additionally by coupling to an electrical position transducer. Preferably, the spring loading on the feeler pin is effected by a spring acting, for example through the electrical transducer, against the longer arm of the double-armed lever.
REFERENCES:
patent: 3057294 (1962-10-01), Jameson
patent: 3792659 (1974-02-01), Albrecht
patent: 3921525 (1975-11-01), D'Amato et al.
patent: 4213390 (1980-07-01), Liebert et al.
Fisher J. Reed
M.A.N.--Roland Druckmaschinen Aktiengesellschaft
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