US1155128A - Process for making cuts. - Google Patents

Description

- workmen who are not experts in LOUIS W. BURGESS, 0F WHEA'I'ON, ILLINOISI PROCESS FOR MAKING CUTS.

No Drawing.

T coll whom it may concern Be it known that I, LOUIS \V. Bononss, a citizen of the United States, and a resident of \Vheaton, in the county of Dupage and State of Illinois, have invented certain new and useful lmprovements in Processes for Making Cuts, of which the following specification is a full, clear, and exact description, such will enable others skilled in-the art to which it pertains to practise and use the same.

My invention relates to the making of cuts for reproduction by printing in a press for nelawspapers, magazines, periodicals, and the li cc.

The primary object of my invention is the production of a cut that will reproduce a photographic positive in a clear and sharp manner, wherein thedefinition between the high-lights and shadows will be properly accentuated.

Further objects of my invention are the production of a clear cut in a simple manner so that the cost thereof will not materially add to the cost of the photographic positive, and which may be carried on or practised by the art of photography.

The above and other objects I'prei er to accomplish by the means and in the manner hereinafter fully described and more particularly pointed out in the claims.

pose

It is the practice of newspapers, magazines, and similar periodicals and publications,

graphic print, after first retouching the print inany desir ble manner'to accentuate the high-lights and shadows, or to cut out portions thereof not needed in the finished cut. The screen usually employed for this purpose is what is commercially known as a 120-line screen and has been found to be so I well adapted for this use that it has become almost a standard among electrotypers. But this process involves the diiiiculty oi. making the cut through the 12(l-line screen and also carries with it such inaccuracies as may occur in the retouching into the final cut.

in carrying out my process I prefer to make a photographic negative enlargement of the positive photograph through a screen the line gage of which is much coarser than the screen usually employed and which is preferablya multiple thereof. For this pur- I propose to make this negative en- Speeification of Letters Patent.

to make a half-tone cut through a screen directly from the positive photo- 'are possible without Patented 28, 1915.

Application filed November 19, 1914. Serial No. 872,886.

largement through a GO-line or LO-line screen and the enlargement is so proportioned as to be preferably twice or three times the dimensions ot' the final printi" A positive direct line print is made from this (iO-line enlargement, which produces a picture composed of black and white areas of such size as to render them easily blocked out in the retouching process, and, after this -line print is developed and dried, it is adapted to be retouched by blocking out with white or black ink the portions it is desired to correct, cut out, or accentuate in the finished print. A direct photograph of the size desired for the cut is then made from this retouched enlargement, which isthe basis for the fianl cut.

It will be seen. that such a direct pho-.

tograph constitutes areas oflbl ack and white.

which has all the'characteristics of a line cut including the clearness and sharpness thereof. It will also be understood that inaccuracies that may h'ave occurred in retouching will be minimized in the reduction so as to be rendered unnoticeable in the out.

In practising my process I prefer to make the screen photograph twice or three times larger than the final cut is desired, and in so doing I employ a screen either twice or three times coarser than the ordinary screen of liittymcsh. while I obtain a final photograph and-cut of materially increased sharpness thesquares thereof are of the same size as half-tones made through a 120-line screen, and my cut The result thereof is that p obtained through my process, the same general texture and fineness of a halftone made with a 120-line screen.

While I have herein described a specific manner of carrying out my invention, it of course will be obvious to others skilled in the art, that various modifications thereof materially: departing from the spirit of my inventioh. For example, a negative enlargement nt'ay be made and the same retouched in lieu of the print enlargement above described, arid the reduction made directly from th retouched negative instead of'first making the print therefrom. I therefore desire it understood that all such modifications or refinements are contemplated within the scope of my invention as expressed in the following claims.

hat I claim as new is 1. The process of making a cut comprising the making of a photograph through a screen of coarse mesh,

coarse mesh photograph, and

photograph to t a screen of c on of the size s of making a of an enlarged d coarse mesh and the photographic reductio touched coarse mesh required for the out.

The proces ing the making screen of coarse mesh a larger than the final cut touchmg of sai and the photog s of making a the retouching of said the photothe retouched coarse required for out comprisphotograph oarse mesh, the rephotograph, n of the rephotograph to the size cut comprisof a photograph through a d coarse mesh raph1c reductio number of times desired, the re-' photograph, n of the retouched coarse mesh photograph to the size required for the cut.

4. The process of making a cut comprising the making of a photograph through a screen of coarse mesh a number of times larger than the final cut desired, the retouching of said coarse mesh photograph, and the multiple photographic reduction of the retouched coarse mesh photograph to the size required for the on In Witness whereof I have hereunto set my hand. at Chicago, Cook county, Illinois, this 11th day of November, 1914, in the presence of two witnesses.

LOUIS lV. BURGESS. lVitnesses:

E. K. LUNDY, Jr., WM. HAROLD EICIIELMAN.