GB852429A - Improvements relating to hydraulic loading means for the rollers of printing machines - Google Patents

Improvements relating to hydraulic loading means for the rollers of printing machines

Info

Publication number
GB852429A
GB852429A GB3944457A GB3944457A GB852429A GB 852429 A GB852429 A GB 852429A GB 3944457 A GB3944457 A GB 3944457A GB 3944457 A GB3944457 A GB 3944457A GB 852429 A GB852429 A GB 852429A
Authority
GB
United Kingdom
Prior art keywords
piston
roller
area
cylinder
hydraulic pressure
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
GB3944457A
Inventor
Wilfrid Stafford
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.)
Mather and Platt Ltd
Original Assignee
Mather and Platt Ltd
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 Mather and Platt Ltd filed Critical Mather and Platt Ltd
Priority to GB3944457A priority Critical patent/GB852429A/en
Publication of GB852429A publication Critical patent/GB852429A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B41F13/40—Cylinder lifting or adjusting devices fluid-pressure operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

852,429. Printing-machines. MATHER & PLATT Ltd. Dec. 19, 1958 [Dec. 19, 1957], No. 39444/57. Class .100(2) [Also in Group XXIX] Hydraulic loading means for printing rollers of printing machines where the load is applied to the two ends of the printing roller comprises two pistons operating the ends of the roller through piston rods extending through the covers of hydraulic cylinders, the annular area of the piston surface around the piston rod of one piston being equal to the full area of the second piston and the annular piston area in one cylinder being placed in communication with the full piston area of the second cylinder, such that the two ends of the roller will be given equal movement when the annular area of the second piston is connected to exhaust and hydraulic pressure is applied to the full area of the first piston. As shown, a printing roller a is moved towards an impression surface b by piston rods g and h carrying pistons e and f respectively. The pistons e and j slide in cylinders c and d respectively, the top s of cylinder d being connected to the bottom u of cylinder c by a pipe q. Hydraulic pressure applied to the bottom t of cylinder d causes the piston f to supply fluid to the bottom u of cylinder c and since the annular area of the top of piston f is equal to the area of the lower side of the piston e the piston rods g, h are moved equal amounts. When the roller a engages the surface b, valves k and m are set to the Fig. 2 position to open the tops r, s of the cylinders to exhaust and the bottoms u, t to hydraulic pressure from sources j and i respectively. When it is required to retract the roller a, the valves k and m are set to the Fig. 3 position to supply hydraulic pressure to the tops r and s of both cylinders, the bottoms u and t being opened to exhaust. If desired, the roller may be returned to its initial position by spring pressure instead of hydraulic pressure.
GB3944457A 1957-12-19 1957-12-19 Improvements relating to hydraulic loading means for the rollers of printing machines Expired GB852429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3944457A GB852429A (en) 1957-12-19 1957-12-19 Improvements relating to hydraulic loading means for the rollers of printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3944457A GB852429A (en) 1957-12-19 1957-12-19 Improvements relating to hydraulic loading means for the rollers of printing machines

Publications (1)

Publication Number Publication Date
GB852429A true GB852429A (en) 1960-10-26

Family

ID=10409575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3944457A Expired GB852429A (en) 1957-12-19 1957-12-19 Improvements relating to hydraulic loading means for the rollers of printing machines

Country Status (1)

Country Link
GB (1) GB852429A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237139B (en) * 1964-02-04 1967-03-23 Gualtiero Giori Steel engraving printing machine for producing single or multi-color prints on sheets or webs in face and reverse printing
GB2164323A (en) * 1984-08-17 1986-03-19 Jagenberg Aktiengessellschaft Cylinder-piston unit for lifting rollers
GB2190043A (en) * 1986-04-24 1987-11-11 Heidelberger Druckmasch Ag Printing press component controlling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237139B (en) * 1964-02-04 1967-03-23 Gualtiero Giori Steel engraving printing machine for producing single or multi-color prints on sheets or webs in face and reverse printing
GB2164323A (en) * 1984-08-17 1986-03-19 Jagenberg Aktiengessellschaft Cylinder-piston unit for lifting rollers
GB2190043A (en) * 1986-04-24 1987-11-11 Heidelberger Druckmasch Ag Printing press component controlling device
GB2190043B (en) * 1986-04-24 1990-09-19 Heidelberger Druckmasch Ag Printing press component controlling device

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