US1568864A - Method of pictorial reproduction - Google Patents

Description

Jan. 5 1926.

H. BAHR METHOD OF PIGTORIAL REPRODUCTION Filed August 1, 1922 2 Sheets-Sheet 1 ENT R.

ATTORNEY I Jan. 5 1926.

H. BAHR METHOD OF PICTORIAL REPRODUCTION Filed August 1, 1922 2 Sheets-Sheet 2 ATTORNEY Patented Jan. 5, 1926.

UNITED STATES HERMAN BAHR, OF LITTLE FALLS, NEW YORK.

METHOD OF PICTORIAL REPRODUCTION.

Application filed August 1, 1922. Serial No. 578,885.

" Little Falls, in the county of Herkimer and State of NewYork, have invented certain new and useful Improvements in Methods of Pictorial Reproduction, of which the following is a specification.

My invention relates to methods'of .pic-

torial reproduction.

The invention pertains particularly to a w method of forming from a given pictorial object a foraminous stencil, from which cutout stencils are made for emphasizing or coloring given portions of the-pictorial de sign. I am aware that it is not generically new to form a foraminous stencil photographically, but it is my belief that the particular method pursued and the additional steps included are novel.

, In carrying out my invention, I provide a pictorial design from which a photographic negative is made, either on a plate or a film, and a foraminous" screen treated with sensitive material and exposed through said negative, the exposed portions hardening,

and the unexposed portions being soluble,

and are washed out by hot water or steam,

and which screen after drying is varnished to strengthen the hardened emulslon 1n the screen.

From this foraminous stencil thus made,

reproductions of the pictorial design may be produced, and, as a further part of my invention, I reproduce a plurality of designs on a given material from which the essential parts are cut, so that any desired portion of the outline, which it may later be desired to emphasize or to color may be safely treated through the cut-out portions of said stencils. This will be nection with .t e accompanying drawings, in which:- V Fig. 1 is a plan view of a sketch or drawing involving a pictorial design to be reproduced by my method;

Fig. 2 is a. similar view of the photographic negative made therefrom.

Fig. 3 is a plan view of a frame upon which the fine meshedmaterial is stretched, and upon which the sensitive material is placed before exposure to the negative;

Fig. 4 is a similar view of the meshed fabric after exposure, and after the unexposed portions have been washed and the screen has been varnished;

uite clear when taken in con-.

Fig. 5 is a plan View of the pictorial design reproduced through the foraminous stencil similar to the original as shown in Fig. 1;

Fig. 6 is a view of a stenciled figure reproduced on suitable material, and from which desirable parts are cut to form a cutout stencil for emphasizing or coloring adesired portion of the design; Figs. 7 and 8 are similar views with different cut-out portions; and.

Fig. 9 is a view of a reproduction on material such as felt, and which has been colored in a desired manner by the use of the cut-out stencils shown in Figs. 6, 7 and 8.

The drawing or other pictorial design 14: on the card 15 may be of any desired color or proportions, and is photographed in any desired manner so as to make the negative 16 upon which the design appears as at 17. A frame 18 open at both sides has tacked to it the mesh fabric 19 which is stitched tightly across it, and'upon which a suitably emulsion (not shown) is placed. 2

I prefer to use as a sensitive emulsion for this purpose, a mixture consisting of one part gelatine, two parts fish-glue, with enough ammonium bichromate to turn a deep orange. The emulsion is spread over the fine mesh of the screen, and is dried in a suitable manner, such as over a heater of 3 some sort. Then the negative is placed in the box formed by the frame. The sensitive screen is then exposed to sunlight or strong artificial light. The action of the light is to harden the exposed portions 20 to render or to leave soluble the unexposed portions 21 shown in Fig. 41.. The screen is then' washed with hot water or steam. and the soluble portions are washed out. The screen is then dried and varnished, or paint is applied to the screen, which strengthens the hardened emulsion 20 in the screen. As indicated inFig. 4, the eifect is to reproduce the original pictorial design 14 on the screen,

the outline by hardened emulsion, and the essential parts of which design are simply a'fine mesh through which pigment or paint or ink or other sultable coloring matter may.

paint or any other suitable coloring, and cut from such cardboard stencils portions 26 which, as shown in Fi 6, might be a check and the mouth whic it is desired to tint pink, and, as shown in Fig. 7, the hair 27, and, as shown in Fig. 8, it might be the entire face and neck 28. Obviously the ones selected are purely illustrative, and any other form might be used.

In order to reproduce the design in colors on a suitable felt base or other more or less absorbent com ositlon, the foraminous stencil is used, and the outline of the fi ure might be projected and strained throug the screen to form a figure as shown in Fig. 5. Then in order "to tint the figure against the preferably colored background of the felt 29, the cut-out stencil shown in Fig. 8 is used to give a different color to the face and neck. The stencil shown in Fig. 7 may be used to give a desirable tone may of negatives from the foraminous stencil;

such negatives may be made by reproductions or impressions on transparent paper,- tracing-cloth, or films, which thereby saves a great deal of expense now necessary in the production of photographic n atives; and, further, the negatives thus 0 tained be used with great success in turning or reversing designs used. t

' Obviously many modifications or will occur tothose skilled intlie art, an donotwi'sh to be eon'sideredaslimited in I claim" as my invention I- A. method of simnlatingahand-gainted pictorialdesign, which ina: Origin a] any way in the precisedisclosure made hereupon matefiaI and tin I. .15 Llm stencil therefrom, forming cut-out stencils from said foraminous stencil, and colori predetermined portions of the design wit a desirable tint by said cut-out stencils.

2.. Amethod of simultaing a handinted pictorial design, which consists in orming an original design, making a photographic negative therefrom, exposing the sensitized foraminous screen through said negative, washing out the une osed portions of the emulsion, varnishing- 3 1c screen to strengthen the hardened emulsion reproducing the design on sti'fi'ened material, cutting out from said reproduced design portions it is desired to tint, reproducing on the absorb ent material a design from said foraminous stencil, and tinting said design from said cut-out stencil.

3. A method of producing cut-out stencils which consists in producing an original design, reproducing the design in a foraminous stencil, and reproducing the design from the foraminous stencil on secondary stencil matcrial from which desirable portions are cut.

4. A method of producing an accentuated or tinted design upon material which consists of producing a pluralit of identical deslgns upon stencil materia cutting out from said material certain portions of the design which it is desired to tint or to accentuate reproducing the design upon a desired material and tinting or accentuating desired portions thereof by successively imposing and using desired cut/out stencils upon such materia A method of accentuating or tinting a pictorlal designupon material which conslsts 1n producing the complete design upon a foraminous stencil, producing a plurahty of successive .prints' of said design through the foraminous stencil upon sheets of secondaryi'stencil material,-cutting out from each of such reproduced desi a portion to be accentuated or tintedm the finished print, then reproducing the design or acentuating desired portions thereof nnum BAHB.

1 y, means of such secondary-cut out stencils. t atiin'ony whereof]: afiix my. signature.

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