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:
May. 31, 1977
Filed:
Oct. 15, 1975
Heidelberger Druckmaschinen Aktiengesellschaft, Heidelberg, DT;
Abstract
Sheet-fed rotary printing press for printing on both sides of a sheet includes an assembly of a transfer drum, a storage drum and a sheet turn-over drum, mounted in succession, and located between two printing units, the storage drum having clamping grippers for gripping the leading edge of a sheet being fed from the transfer drum to the storage drum, the turn-over drum having tong grippers for gripping the trailing edge of the sheet at an imaginary straight line connecting the rotary centers of the storage drum and the turn-over drum as the sheet is being transferred from the storage drum to the turn-over drum and as the clamping grippers of the storage drum release the leading edge of the sheet, the tong grippers exerting a weaker clamping force on the sheet than the clamping force exerted by the clamping grippers thereon and, before the tong grippers have gripped the sheet and before the clamping grippers have released the sheet, the distance between the clamping grippers, on the one hand, and the tong grippers, on the other hand, is increased.