US447701A - Half to louis raiimer - Google Patents

Half to louis raiimer Download PDF

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Publication number
US447701A
US447701A US447701DA US447701A US 447701 A US447701 A US 447701A US 447701D A US447701D A US 447701DA US 447701 A US447701 A US 447701A
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Prior art keywords
stones
colors
tints
sheets
louis
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/28—Printing on other surfaces than ordinary paper on metals

Definitions

  • This invention relates to an improved process of printing in colors in such a manner that the well-known character of Water-color painting is closely imitated, while the ordinary lithographic stones can be employed for this purpose; and the invention consists of a process of printing in colors which consists of the following steps: first, producing the different tints by means of brush and lithographic inks on thin transparent sheets of celluloid; secondly, transferring the said tints from the sheets of celluloid to the lithographic stones, and, finally, printing from said stones in different colors, so as to reproduce the original painting.
  • I employ thin sheets of celluloid, which are placed one after the other over the water-color or other painting that is to be reproduced in colors, care being taken that the proper register of the sheets with the original painting is retained.
  • One sheet of celluloid is used for each color of the original painting.
  • the special tint is produced in the same by means of a brush and lithographic ink, so that a so-called Wash-tint is produced, the different portions of which are graduated in proportion to the depth of color in the original painting.
  • the surface of the stones is grained preparatory to receiving the Wash-tints on the transfersheets.
  • the stones are coated with a layer of a solution of gum and after drying washed oh, the stones being then rolled up in the usual manner with transfer-ink.
  • the stones are next prepared with gum and acid like a crayon drawing.
  • the wash-tints are broken up into small dots by the raised portions of the grain, so that the tints on the stone are an exact reproduction in dots of the washtints on the sheets, they being denser at the heavier parts and thinner at the lighter parts.
  • the different colors are then printed from the stones until a picture in colors is obtained in which the characteristic features and tints of the original painting are faithfully reproduced.
  • graining or stipple efiects may be added to the sheets of celluloid and then transferred to the stones, or they may be produced on the stones in the usual manner.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)

Description

UNITED STATES PATENT ()FFICE.
\VILLIAM SCIIUMAOHER, OF BROOKLYN, NEIV YORK, ASSIGNOR OF ONE HALF TO LOUIS RAHMER, OF SAME PLAOE.
PROCESS OF PRINTING IN COLORS.
SPECIFICATION forming part of Letters Patent No. 447,701, dated March 3, 1891.
Application filed March 3, 1890. Serial No. 342,469. (Specimens) T 0 all whom it may concern:
Be it known that I, WILLIAM SCHUMAOHER, of Brooklyn, in the county of Kings and State of New York, a citizen of the United States, have invented certain new and useful Improvements in Processes of Printingin Colors, of which the following is a specification.
This invention relates to an improved process of printing in colors in such a manner that the well-known character of Water-color painting is closely imitated, while the ordinary lithographic stones can be employed for this purpose; and the invention consists of a process of printing in colors which consists of the following steps: first, producing the different tints by means of brush and lithographic inks on thin transparent sheets of celluloid; secondly, transferring the said tints from the sheets of celluloid to the lithographic stones, and, finally, printing from said stones in different colors, so as to reproduce the original painting.
In carrying out my invention I employ thin sheets of celluloid, which are placed one after the other over the water-color or other painting that is to be reproduced in colors, care being taken that the proper register of the sheets with the original painting is retained. One sheet of celluloid is used for each color of the original painting. \Vhile the sheet is placed in position on the original painting the special tint is produced in the same by means of a brush and lithographic ink, so that a so-called Wash-tint is produced, the different portions of which are graduated in proportion to the depth of color in the original painting. When as many sheets as there are colors in the original painting are thus produced, the wash-tints on the same are transferred from the celluloid sheets to as many differentlithographic stones. The surface of the stones is grained preparatory to receiving the Wash-tints on the transfersheets. After the transfer of the wash-tints is made, the stones are coated with a layer of a solution of gum and after drying washed oh, the stones being then rolled up in the usual manner with transfer-ink. The stones are next prepared with gum and acid like a crayon drawing. The wash-tints are broken up into small dots by the raised portions of the grain, so that the tints on the stone are an exact reproduction in dots of the washtints on the sheets, they being denser at the heavier parts and thinner at the lighter parts. The different colors are then printed from the stones until a picture in colors is obtained in which the characteristic features and tints of the original painting are faithfully reproduced.
In addition to the wash-tints employed, graining or stipple efiects may be added to the sheets of celluloid and then transferred to the stones, or they may be produced on the stones in the usual manner.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The method of printing in colors, which consists in placing successively as many transparent sheets as there are colors in the picture to be copied over said picture and applying to each sheet a wash-tint in lithographic ink corresponding to that part of the original picture to be reproduced by the aid of said sheet, then transferring the several tints to separate lithographic stones having grained surfaces, and then printing the difierent colors from the separate stones in register to correspond with the parts of the original picture, substantially as described.
In testimony that I claim the foregoing as my invention I have signed my namein presence of two subscribing witnesses.
WILLIAM SOHUMAOHER.
Witnesses:
PAUL GoEPEL, W. REIMHERR.
US447701D Half to louis raiimer Expired - Lifetime US447701A (en)

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US447701A true US447701A (en) 1891-03-03

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