US1684324A - Register sheet for printing presses and the like - Google Patents

Register sheet for printing presses and the like Download PDF

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Publication number
US1684324A
US1684324A US191839A US19183927A US1684324A US 1684324 A US1684324 A US 1684324A US 191839 A US191839 A US 191839A US 19183927 A US19183927 A US 19183927A US 1684324 A US1684324 A US 1684324A
Authority
US
United States
Prior art keywords
sheet
register
places
plate
printing presses
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 - Lifetime
Application number
US191839A
Other languages
English (en)
Inventor
Lingner Carl
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.)
HOFBUCHDRUCKEREI VON C DUNNHAU
HOFBUCHDRUCKEREI VON C DUNNHAUPT GmbH
Original Assignee
HOFBUCHDRUCKEREI VON C DUNNHAU
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 HOFBUCHDRUCKEREI VON C DUNNHAU filed Critical HOFBUCHDRUCKEREI VON C DUNNHAU
Application granted granted Critical
Publication of US1684324A publication Critical patent/US1684324A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M9/00—Processes wherein make-ready devices are used
    • B41M9/02—Relief make-readies

Definitions

  • the present invention consists in a method
  • the adhesive may be sprayed on by means of an atomizer andbe dusted with a powder which hardens rapidly on the heated plate, on which the sheet is stretched, or a self harden ing adhesive liquid may be used.
  • the register-sheet may also be made of paper to which a magnetizable substance, such as iron, nickel or other suitable material, is added, in finely granular or powdery form, so that the register-sheet will be attracted by a magnet, the plate, on which the register-sheet is laid, acting as the magnet.
  • a magnetizable substance such as iron, nickel or other suitable material
  • Figure 1 being a side elevation
  • Figure 2 a plan View.
  • the bed plate a which is preferably electrically heated and on which the register-sheet is laid face down and stretched, is guided by planed ribs 6 between similarly planed guides 0 which are fixed to the transverse members cl of the frame e of the machine.
  • the plate a
  • the plate a is provided with two small handles 70 and a. large handle Z, by means of which it is placed inthe machine and can be pushed to and fro.
  • a roller m is journalled in pedestals n so as to be capable of being raised and lowered, the cylindrical surface of the roller being provided with an abradant covering.
  • the roller m is rotated at a high speed by an electric motor '0. If the roller m be lowered to such an extent that it comes in contact with the impression stretched on the plate a and previously treated by the method above described and if the plate a be pushed to and fro under the roller by means of the handle Z, the raised places of the same will be'ground off, an even surface being thus produced.
  • a brush 79 parallel to the roller m can be placed against the latter for removing the paper dust from it.
  • the brush p is preferably enclosed in a sheet metal casing 9 connected to an exhaust fan, for catching the dust and removing it by suction.
  • the brush 3)- can be put into and out of operation from where the-operator stands by means of a lever r, the bar 8 and thehandlet.
  • the brush might also be in the form of a revolving brush rotatedat a high speed by the-electric motor.
  • anadl-Iesive'liquid for instance a. gum solution
  • a powder for instance borax, dextrine or rosin
  • the method may be carried' out in separate operations, such that one machine is used for grinding and milling and another or several other machines for the spraying and heating operation.
  • the method is still simpler, if a selfhardening adhesive be used in place of the adhesive sprayed on by an atomizer, for instance a mixture of dext-rine, gum arabic and alcohol.
  • an atomizer for instance a mixture of dext-rine, gum arabic and alcohol.
  • the important requirement, thatv the sheet should be held firmly over its entire' surface on the supporting plate so that it rests evenly on the same without being at all wavy, is provided for by a further modification of the method, the register-sheet used IUD 7 being made of paper, having an admixture of laid on the de-magnetized supporting plate.
  • the electric current is switched on so that the plate which has become a mag-- net holds the register-sheet firmly over its entire surface without the possibility of any undulations being formed.
  • the types which project too far on the upper surface of the register-sheet can thereupon be round or milled off.
  • the electric current is switched off. No mechanical means are required for holding the register-sheet in position.
  • the electric current can be switched on and off by hand or automatically.
  • a method of preparing register-sheets for printing presses and the like consisting in making an impression in the press, which is as sharp as possible and has much shading, stretching it face down on a heated plate, grinding off the raised places on the back of the sheet and thereupon spraying on a rap-- idly hardening adhesive as required on the weak places by means of an atomizer, as and for the purpose set forth. 7
  • a method of preparing register-sheets for printing presses andthe like consisting in making an impression in the press, which is as sharp as possible and has much shading, on a sheet of paper containing a magnetizable substance, such as iron or nickel dust,stretching the sheet face' down on a magnetic flat plate, grinding off the raised places on the back of the sheet by means of a rotatin roller, and thereupon treating the wee places by spraying on an adhesive and hardening the same, as and for the purpose set forth.
  • a magnetizable substance such as iron or nickel dust

Landscapes

  • Coating Apparatus (AREA)
  • Labeling Devices (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Printing Methods (AREA)
US191839A 1925-11-25 1927-05-16 Register sheet for printing presses and the like Expired - Lifetime US1684324A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEL64570D DE449023C (de) 1925-11-25 1925-11-25 Verfahren und Vorrichtung zur Herstellung von Zurichtungen fuer Buchdruckpressen
DEL68143D DE452705C (de) 1925-11-25 1927-03-10 Verfahren zum Festspannen von Zurichtebogen fuer Buchdruck
DEL68144D DE452704C (de) 1925-11-25 1927-03-10 Verfahren zum Behandeln der Zurichtebogen in der Buchdruckerei

Publications (1)

Publication Number Publication Date
US1684324A true US1684324A (en) 1928-09-11

Family

ID=27211505

Family Applications (1)

Application Number Title Priority Date Filing Date
US191839A Expired - Lifetime US1684324A (en) 1925-11-25 1927-05-16 Register sheet for printing presses and the like

Country Status (5)

Country Link
US (1) US1684324A (fr)
DE (3) DE449023C (fr)
FR (1) FR633534A (fr)
GB (1) GB291203A (fr)
NL (1) NL20660C (fr)

Also Published As

Publication number Publication date
DE449023C (de) 1928-10-17
NL20660C (fr)
DE452704C (de) 1927-11-17
GB291203A (en) 1928-05-31
FR633534A (fr) 1928-01-31
DE452705C (de) 1927-11-17

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