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:
Mar. 06, 1984
Filed:
May. 20, 1981
Koji Ishii, Hiroshima, JP;
Yoshinori Honkawa, Hiroshima, JP;
Ryobi Ltd., Fuchu, JP;
Abstract
An offset printing machine including an operating lever mechanism in which, before the printing process is started, all required preliminary processes can be carried out while the operator can visually confirm them to thereby prevent unsatisfactory printing operations due to erroneous plate insertion. The operating lever is rigidly coupled to an operating shaft upon which are mounted cams and arms for controlling each of a plate loading device, a plate unloading device, a blanket cylinder cleaning device, a form roller control mechanism, a plate cylinder control mechanism, a sheet feed control mechanism, a water duct roller control mechanism and an ink duct roller control mechanism in accordance with the angular position of the operating shaft. The plate loading device includes a switch structure having a memory circuit adapted to be set to open and closed positions in accordance with a plate loading operation and to store a plate loaded state even during a restoring operation which is carried out upon completion of the plate loading operation.