The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1984
Filed:
Mar. 08, 1982
Werner Frenzel, Radebeul, DD;
Johannes Naumann, Coswig, DD;
Otfried Rudolph, Dresden, DD;
Gunter Peter, Coswig, DD;
Karlheinz Fischer, Coswig, DD;
Alfred Schott, Radebeul, DD;
Hans-Jurgen Tappert, Coswig, DD;
Veb Kombinat Polygraph 'Werner Lamberz' Leipzig, Leipzig, DD;
Abstract
A printing machine which has a plurality of printing units each including several rollers is equipped with a gear train which drives at least one roller of each of the printing units. At least associated two of the gear wheels of the gear train are coaxially mounted on a common shaft, one of them being movable toward and out of contact with the other gear wheel for establishing entraining connection therewith and for permitting angular displacement of the associated gear wheels relative to one another, respectively. The angular position of the associates gear wheels is to be changed when the mode of operation of the printing machine is to be changed from first page printing mode to first and second page printing mode. The arrangement which connects and disconnects the associated wheels includes a plurality of moving units which simultaneously act on the other gear wheel and which are mounted on an annular clamping element mounted on the other side of the one gear wheel from the one gear wheel. The moving unit may include a cylinder-and-piston unit having a toothed piston rod meshing with a pinion mounted on a threaded element meshingly received in a threaded bore of the other gear wheel, or an angular displacement motor having a threaded output shaft meshingly received in such threaded bore, or a cylinder-and-piston unit having a piston rod articulated to an eccentric disk rotatably mounted on a bearing block rigid with the other gear wheel.