US1088778A - Printing device. - Google Patents

Description

-W. F. HEADLEY.

PRINTING DEVICE. ArrLloAgrlon rum) 00119, 1911.

Patented Mar. 3, 19141 is W48 if; J 1 lNvEN'roR- 1 m M W Bv @ZVZLZZKQK UNITED STATES PATENT OFFICE.

WELLINGTON F. HEADLEY, 0F AKRON, OHIO.

PRINTING DEVICE.

l J To (17/ trim/ll 1'2 )lu/ concern.

Be itknown that I, \VnLLmo'rox FRANCIS llnanmrr, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented new and useful Improvements in Printing Devices, of which the following is a specification.

This invention relates to improvements in printing devices and has for its object the provision of means especially adapted to producing wavy lines on paper for furnishing a back-ground on which may be formed designs such as mottling or a moire etl'ect although the invention is not limited to producing any particular formation of lines.

The invention. contemplates the provision of means which will ftllcfl the paper to be printed against an inked surface with varying degrees of intensity at different points so as to produce heavy shadows or iaded portions tapering or becoming less intense with gr at accuracy and smoothness to produce beautiful even effects not heretofore capable of being produced. I accomplish this result by means of a sheet of material constituting a base on which are mounted a plurality of projections of resilient material, usually rubber, having the base portions thereof larger than the projecting portions or the apiccs so that the portions of the paper which are pressed forward by the apices or the projections will receive a greater supply of ink from the ink-plate than those portions which are pressed more lightly by the sides of the projection which receive a constantly decreasing amount of ink so as to produce a shaded effect.

F urther the invention contemplates the use of my improved device for pressing the opposite sideof a paper against the inked surface for producing the shaded efi'ects as contradistinguished from inking the device itself and passing the same over the paper, so that at all times the device is free from contact with ink.

With the foregoing and other objects in view. the invention consists in the novel con struction, combination and arrangement of parts constituting the invention to be here 'inafter specifically described and illustrated in the accompanying drawings which form a part hereof wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come Specification of Letters Patent.

Application filed October 19, 1911.

. such as rubber.

Patented M21123, 1.914. Serial No. 655,576.

within the scope of the claims hereunto appended. i

In the drawings in which similar reference numerals indicate like parts in the different figures, Figure l, is a sectional view of a portion of a printing press showing my device in operative relation therewith;

lfig. 1s a perspective view of a small portron of my improved device; and, Fig. 3, is a small piece of printed matter showing the results of the use of my improved device..

In the drawings the reference numeral 1 denotes an ordinary printing cylinder provided with a feed-table '2 and carrying dogs or catches 3 and having a guide 4 all of ordinary construction. 1 is a reciprocating member 5 a portion (3 of,

which constitutes an inked surface whicl} can be inked through the medium of an in] roller 7. The portion 6 is a substantially plain surface in contradistinction to a surface which may be formed by type or other parts adapted to themselves provide a design upon the sheet to be printed.

Mounted on the cylinder 1 and held in position by means of the dogs or catches 3 is a sheet 8 of suitable material usually metal, on which are secured by cement or other wise, a plurality of projecting members 9 shown in the drawings as parallelstrips, segment-shaped in cross-section, and preferably formed of The configuration of the strips 9 immaterial but said strips should be provided with enlarged base-portions where they are fastened to the plate 8 and should gradually taper toward their outer portions which engage the paper.

In use, the paper 10 is fedover the table 2 and is ressed against the ink surface 6 by means of thenzembersi), the degree of pressure being regulated as is usual in the printing art and the result is that there is produced on the paper an'impression or marks corresponding in contour tothe 0011-; t'ormation'of the strips 9 and consisting of deep central, portions 11 from which the color gradually shades off to the points 12 and usually at oints midway between the marks 11 themes little or no color applied to the paper.

It will be tion of color as shown in Fig. 3 is only proximate, due to the limitations in the apparent that/the representa- Below the cylinder some resilient material 7 of the ink. employed in the drawing but tho -n0 printed lines shade from the deepest point 11 tothe points 12 in gradually decreasing intensity of color.

As will be understood, the surface 6, being substantially plain and therefore having a comparatively thin ink coating, will, when the sheet is forced in contact therewith by the strips 9, notv place a solid color on the' sheet throughout its face, but the varying 'degrees of pressure will cause a greater or less amount of ink to be taken up by the vided when the cylinder carries the sheet over the inked surface.

In use it is customary'to'make first of i all alight impression by passing the paper through the printing press and drying the same after which the paper is again subject-- ed to the press and the color deepened and rendered more uniform by the superimposition on the previous printed surface of a relatively thin transparent color or coating arranged to coat approximately the entire surface with the result that the lines or im' pression originally placed on the paper by the first impression will appear deepened or having greater intensity of color than the other portions which are less intensely printed, and the whole blended and covered by the superimposed transparent coating,

so that there will be imparted to the fin-, ished article a wavy or moire effect with,

the entire surface completely covered, ex-

cepting where breaks or openings are in tentionally left for altering the design.

It will, of course, be obvious that the degree or intensity of color of the first or line impression as well as the second or trans- Obviously, this imprinting on parent impression may be varied within.

wide limits, due to the degree of pressure employed. and the design imparted to the originally printed sheet.

I claim:

1.. In apparatus for printing sheets with a design varying in intensity, means for appl yin g a. primary design to the sheet, said means including a plain, unyielding inkcarrying surface uniformly inked, and an i. prcssion member for applying varying degrees of pressure to the; sheet while the latter is in contact with said surface.

2. In printing apparatus, a design-forming i1n1n'ession element, a plain unyielding inking surface uniformly inked, and means for carrying the sheet to be printed'between said element and surface.

3. In printing apparatus and in combination, a plain unyielding inking surface uniformly inked, a sheet carrier adapted to bring the sheet to be printed into juxtaposition with said surface, and'means carried by the sheet carrier for bringing the sheet into facial contactv with said surface with varying degrees of pressure.

4. In printing apparatus and in combination, a plain unyielding inking surface uniformly inked, a sheet carrier adapted to bring the sheet to be printed into juxtaposition with said surface, and means carried by the sheet carrier for bringing the sheet into facial contact with said surface with varying degrees of pressure, said means comprising an element carrying raised indewhereby varying degrees of in-u

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