GB167323A - Improvements in rotary printing machines - Google Patents

Improvements in rotary printing machines

Info

Publication number
GB167323A
GB167323A GB1355720A GB1355720A GB167323A GB 167323 A GB167323 A GB 167323A GB 1355720 A GB1355720 A GB 1355720A GB 1355720 A GB1355720 A GB 1355720A GB 167323 A GB167323 A GB 167323A
Authority
GB
United Kingdom
Prior art keywords
cylinder
sheet
printed
impression cylinder
transfer drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1355720A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1355720A priority Critical patent/GB167323A/en
Publication of GB167323A publication Critical patent/GB167323A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/02—Rotary letterpress machines for printing on sheets

Abstract

167,323. Salmon, H. J. May 17, 1920. Rotary machines. - A rotary machine of the kind having an impression cylinder, divided into a number of sectors corresponding to the number of times each sheet is to be printed on, and a transfer drum or drums for transferring the sheet after it is printed on from one sector to the next in rear is provided with a second impression cylinder for perfecting the sheets in one or more colours and with a transfer drum for transferring the sheet to the second impression cylinder from a transfer drum of the first impression cylinder. As shown in Fig. 2, an impression cylinder a is formed with two sectors provided with grippers n, o, and cooperating respectively with printing-cylinders c, d. A sheet fed to the grippers n and printed by the cylinder c may be delivered by a chain i printed on one side only, or may be taken by a transfer drum f and transferred to the grippers o and printed twice on the same side and delivered by the chain i. The sheet may pass from the drum f to a second transfer cylinder g, and thence to a second impression cylinder b coacting with a printing-cylinder e. The cylinder a may be formed with more than two sectors and be used to print severel colours one one side of a sheet. In a modification, the machine is arranged to print more than one impression on one side of a sheet, which is then transferred to a second impression cylinder and has one or more impressions printed on the opposite side. This modification differs from the first in that one more transfer drum is arranged in conjunction with the cylinder a. The printing-surfaces may be of any kind, e.g. lithographic, or offset. Retaining-rolls f coact with the cylinder a to keep the sheet upon it.
GB1355720A 1920-05-17 1920-05-17 Improvements in rotary printing machines Expired GB167323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1355720A GB167323A (en) 1920-05-17 1920-05-17 Improvements in rotary printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1355720A GB167323A (en) 1920-05-17 1920-05-17 Improvements in rotary printing machines

Publications (1)

Publication Number Publication Date
GB167323A true GB167323A (en) 1921-08-11

Family

ID=10025085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355720A Expired GB167323A (en) 1920-05-17 1920-05-17 Improvements in rotary printing machines

Country Status (1)

Country Link
GB (1) GB167323A (en)

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