Images

Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/0008—Driving devices

Definitions

• This invention relates to printing presses and has for one of its objects the provision of mechanism by the use of which the maximum product may be produced with a given number of printing plates.
• tubular plates may be used upon the form cylinder in connection with two impression cylinders, whereby each single page printing plate is utilized for producing two separate printed pages at each complete rotation of such printing plate.
• FIG. 1 is an end view of my improved press, taken substantially on line 11 of Fig. 2;
• Fig. 2 is a side view, as seen from the right in Fig. 1;
• Fig. 3 is an enlarged detail, partly in section, of the eccentric means for supporting the lower impression cylinders;
• Fig. 4 is a diagrammatic view showing the manner of associating two webs, as seen substantially on line 44: of Fig. 1;
• Fig. 5 is a diagrammatic view showing the manner of associating the other two webs, as seen substantially on line 55 of Fig. 2.
• 10 indicates a base, rising from which are two standards 11, between which are mounted a roll of paper 12, a form cylinder 13, and impression cylinders 14:15-
• the form cylinders 13 and 18 are located in parallel positions with the form cylinder 22 between them substantially at right angles thereto, the form cylinder 22 being approximately twice as long as the form cylinders 13-18.
• Each of the impression cylinders 1520 24 is movable up and down in its supporting frame away from the coacting form cylinder by a stroke of the levers 26, as hereinafter described.
• each of the shafts 27, by means of which said impression cylinders are journaled in the frame work are eccentrically mounted in bushings 28 which are journaled in the frame work.
• the levers 26 are non-rotatably secured upon said bushings by means of keys 29, which levers 26 are held against rotation relative to the frame by means of pins 30, which pass through suitable openings in said levers and in the frame work.
• the pins 30 are withdrawn and the levers 26 are moved downward at each end of one of the impression cylinders, such impression cylinder will be moved bodily downward out of operative position relative to the form cylinder with which it coacts.
• Each of the form cylinders 131822 has its shaft 31 supported at one end by the standard rising directly from the base 10, while at the other end said shaft 31 is supported by a comparatively thin arm 32 depending from the upper part of the standard whereby the tubular printing plate 33 is adapted to be slipped upon the end of the form cylinder with the longitudinal slot of the tubular plate passing over said arm 32.
• the slot in the tubular plate being adjacent to the upper impression cylinder, as the tubular plate is slipped upon the form cylinder the plate is free to move easily without scraping upon the impression cylinder.
• tubular plate could not well be placed upon the form cylinder with the slot of said plate uppermost Without having the lower impression cylinder first moved out of operative position by means of the levers 26 or in some other suitable way, as will be readily understood.
• a screw-threaded pin 36 In the upper end of the arm 34- is mounted a screw-threaded pin 36, the inner end of which engages a suitable socket in the end of the shaft 31, serving to hold said shaft firmly during the operation of the machine.
• the arm 34 is held in operative position by means of a pin 37 passing through suitable openings in the bracket 35 and an arm 38 carried by the arm 31.
• the web 1'7 from the roll of paper 17 is passed between the form cylinder 18 and the impression cylinder 19 being printed upon its lower side, passing thence over the angle-bar 40 and between the form cylinder 22 and the impression cylinder 23, being printed upon its reverse side.
• the web 17 then passes over oppositely-disposed angle-bars 4:1- l 2 into register with the web 12 said two associated webs passing thence over a roller 43 to the former 1 1 and between fold laying rollers 15, whence they are passed to any suitable transverse folder.
• the webs 25" and 25 pass from the rolls of paper 25 between the form cylinder 22 and the impression cylinder 27, where they are printed upon their upper faces.
• the web 25 then passes over the angle-bar 46 between the impression cylinder 15 and the form cylinder 13, where it is printed upon its opposite side, and thence over the angle bar 17.
• the web 25 passes from the form cylinder 22 over an angle-bar 4C8, thence between form cylinder 18 and impression cylinder 20, and thence over an angle-bar 19.
• the webs 2525 pass from the anglebars 4-7 19 parallel with each other to the roller 50, after which the web 25 passes over oppositely-disposed angle-bars 5152 by which it is brought into registry with the web 25.
• the webs 25 25 pass then over the roller 53, and are folded longitudinally by means of a former 54: and fold laying rollers 55, whence they pass to any suitable folder.
• associated webs 12 and 17 may be directed to one folder and the associated webs 25 and 25 may be directed to another folder, if desired. I do not restrict myself, however, to that form of device, inasmuch as both sets of associated webs may be directed to a single folder, if desired, of the type adapted to deliver two separate complete products.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Rotary Presses (AREA)

Description

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=3176354

Family Applications (1)

Country Status (1)

Cited By (1)

• 1913
  • 1913-08-18 US US78539513A patent/US1108162A/en not_active Expired - Lifetime

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