US1543528A - Phototypographic rotogravure character slug - Google Patents

Description

June 23, I925 R. J. SMOTHERS PHOTO'I'YPO'GRAPHIC noroemvuns CHARACTER sLuc Filed July 2, 1924 Patented June 23, 1925.

UNITED STA TES' ROBERT JARVIS SMOTHERS, OF HOLYOKE,

PATENT OFFICE.

MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JAMES '1. ROBINSON, OF HOLYOKIE, MASSACHUSETTS.

Application filed July 2,

To all whom'it may concern:

Be it known that I, 'ROBERT JARVIS Sino'rHEus, a citizen of the United States, residing at Holyoke, in the county of 'Hampden and State of Massachusetts, have invented certain new and useful Improvements in Phototypographic Rotogravure Character Slugs, of which the following is a specificaner with respect to the object carried there-' by to provide for the photographing of such object on a sensitized surface opposing the slug.

The body portion of a slug, in accordance with this invention, other than the providing of the object thereon to b'e'photographed, and the means for the passage of the light rays, referably is identical in construction with t e body portion of matrices employed in the Well-known linotype machines, and by such arrangement it provides for slugs in accordance with this invention, to be aligned and disassembled in the samemanneras is now carried out with respect to the matrices employed in the machines aforesaid.

A phototypographic character slug, in accordance with this invention, is constructed to provide for its use in the production of a rotogravure plate and the object forming,

an element of the slug is provided throughout with spaced dots to provide, when the object is photographed, a negative which is dotted throughout so that when the rotogravure plate is finished, it will be provided with its or wells to hold the ink during the printing operation, and by this arran ement it overcomes the interpositioning o a 1924. Serial No. 723,788.

screen between a photographic positive and the plate body when photographing the design on the plate body and which is subsequently etched.

Further objects of the invention are to provide, in a manner as hereinafter set forth a phototypographic rotogravure character slug for the purpose referred to, which is simple in its construction and arrangement, strong, durable, compact, thoroughly effident in its use, and comparatively'inexpensive to manufacture.

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figurel is a front elevation of a series of aligned slugs, in accordance with this in-' vention.

Figure 2 is a rear elevation of Figure 1.

Figures 3 and 4 are side elevations of a slug in accordance with this invention, Figure 3 looking towards one side and Figure 4 towards the other side of the slug.

Figure 5 is an enlarged perspective view of a carrier provided with a pair of objects.

Figure 6 is a view similar to Figure 5 of a modified form of carrier.

Referring to the drawings in detail, 1 denotes the body portion of the slug, which is constructed of metallic material, and other than as hereinafter stated, is constructed in the same manner as the matrices employed in the well-known forms of linotype inachines. As is Well-known, a matrix of the type employed in linotype machines has its front edge provided with a pair of notches, suitably spaced. from each other and with the base of each notch countersunk to form the outline of a letter, but one of the letters is of a diti'erent st vlc or type i ith respect to the other. To provide for the utiliza ion of this well-known type of matrix in a typographic machine, the front edge ot' the body portion of the slug, which is notched, is cut out intermediate its aids to extend slightly beyond ach of such notches and to a substantial depth, or in other words, the body portion 1 in lieu oi having its front edge formed with the said notches, is cut array to provide a transversely extending groove having a segment-shaped bottom 2 and a pair of oppositely inclined side walls I}. l, which extend towards each other, or in other words, the side walls 3, :l, are under-cut in a manner so that the ends of the bottom 2 will extend beyond the outer ends of the side walls 3, l. The bottom 2 is of materiall v greater length than the length oi the side walls and the groove formed in the front edge of the body portion 1 is disposed cent ally with respect to said edge. That edge of the body portion 1, which is grooved, is indicated a Each side face 01 the body portion 1 is termed with a series of serui-oval shaped spaced grooves, prefer: bl v three in number, and the grooves on one side face are indirated at 6, and the grooves on the. other side :tace are indicated at T. The grooves ti and T extend from the rear edge (1 of the body portion 1 and terminate in the groove termed in the front edge 5 of the body portion 1.

Snug'lv fitting the walls of the groove, in the front edge 5, a carrier 8, provided with a. pair of spaced objects 9, 10, of ditiei ent design. The carrier 8 has a tlat outer edt a pair of flat sides, a segment-shaped inner edge and a pair of bevelled end edges. The under-cut side walls 3, l, of the groove in the end edge 5 overlap the end edges of the carrier 8 and maintain the latter in position in the bod portion 1. The carrier S is flush with the sides of the body poi-ton 1, as well as the front edge thereof. The curved edge of the carrier 8 extends across the ends of the grooves G and 7, which open into the groove Formed in the end edge 5 of the bod portion 1. The grooves (i and T provide mean v for directing the light ra s to the carrier 8.

Then the slugs are set up in abutting; relation in a manner as shown in .lfie'ure 2. the grooves T of one slug register with the grooves (5 ol an adjacent slug. thereby providing oval-shaped passages 11. which con duct the light ra vs to the "arrier 8.

Although the carrier 8 is shown as provided v'ith a pair of objects 9. l0, suitably spaced from each other, vet it is obvious that the carrier 8 can be provided with but a single object. The object on the carrier may be opaque or transparent. ln l igure 5, the object shown is similar to that iilustrated in Figure 1 and is opaque, but in Figure 6, the object which is indicated a, 1-1, is tral'lsparent and formed throughout with spaced dots as at 11. The outer end edge 15 of the carrier 16 opaque. That part of the carrier 16 other than the outer edge 15 is transparent.

The curved inner edge of the carrie: provides for the ditlusion oi the lig'h when leaving the grooves ti and T, or passages 11.

When the ships are employed 101 photographically printing on a sensitized trt'ace, the light ra s are projected through the grooves G and T or passages 11, from the r ar end thereof. The sens ized surt'arc opposes the front of the slugs. When the slugs are set up in grouped or aligned arrangement, as shown in Figures 1 and i., but one series 0t aligned olriects is photo graphed, or in other words, the upper or the lower series of aligned objects is photo graphed depending on what style of letter. digit. character, or figure is desired.

\Vhen the aligned dotted objects are photographed upon a sensitizal surface. a negative is produced provided throughout with dots and these latter are utilized to form pits or wells in the makingof a roto p ravure plate to hold the ink during the printing operation, and by the. use of such construction of slugs stippling is dispensed with. as well as the interposition ol" a screen between a photographic 'iosit-ive and the plate body or carbon tissue when photographing on either.

Although the drawings show the objects in the form of letters, yet it is to be understood that the objects can be a digit, word. design or figure or other character.

The slugs are aligned in the same manner as matrices in linot'vpe machines, and the body portion of the slug is set. up to provide for the shifting of the. same to and from operative position and such position being: when the slug is arranged wherebv the object carried thereby can be photogrraphi rally printed upon a sensitized surface. therefore, the bodv of each of the slugs has means to enablev the body portion to be moved to and from operative posit ion.

It is thought that the man advautageof a slug: in accordance with this invention, for use in connection with a phototvpographic machine an be r-aulilv understood. and although the preferred emlnalinr it ot the invention is as illustrated and described. vet it is to be understood that. changes in the details of construction can be had which will fall within the scope of the. invention as claimed.

\Vhat I claim is:-

1. A phototypogl'apliic I'Oi'OQIHYIHt character slugicomprising a body portion haviue a front edge, a carrier seated in said from edge and having its outer edge provided witha dotted object to be photographed, and

said body portion provided with means for directing light raysto said carrier to provide for the printing of the dotted object on a sensitized surface opposing the object.

2. A phototypographic rotogravure character slug comprising a body portion having a front'edge, a carrier seated in said front edge and having its outer edge provided with a dotted object to be hotographed, and said body portion provi ed with means for directing light rays to said carrier to. provide for the printing of the dotted object on a sensitized surface opposing the object, said carrier having its inner edge curved to diffuse the light rays directed thereto.

3. A phototypographic rotogravure character slug comprising a bodyortion having a front edge, a carrier seate in said front edge and having its outer edge provided with a dotted object to be photographed, and said body portion provided with means for directing light rays to said carrier to provide for. the printing of the dotted object on a sensitized surface opposing the object, the said means arranged on each side of said body portion and extending from the rear edge thereof.

4; A phototypographic rotogravure character slug comprising a body portion provided with means to permit of the shifting of it to and from operative position, a carrier mounted in the front of said body portion and provided on its outer edge with a dotted object, said object and carrier constructed to provide for the action of light rays to photographically rint the dotted object upon a sensitized sur ace opposing the front of said body portion, and said body portion provided with means for directing light rays to said carrier.

5. A phototypographic rotogravure character slug comprising a body portion pro: vided with means to permit of the shifting of it to and from operative position, a carrier mounted in the front of said body portion and provided on its outer edge with a dotted object, said object and carrier constructed to provide for the action of light rays to photographically print the dotted object upon a sensitized surface opposing the front of said body portion, and said body portion provided with means for directing light rays to said carrier, said means for directing light rays to the carrier arranged on each side of the body portion.

6. A phototypographic rotogravure char acter slug comprising a body portion provided with means to permit of shifting it to and from operative position, a transparent carrier mounted in the front of said body portion and provided with an opaque object dotted throughout. and said carrier provided with means for directing light rays to said carrier to provide for the photographicprinting of the dotted object on a sensitized surface opposing said body portion. v e

7. I it phototypographic rotogravurc character slug comprising a'body portion provided with means to permit of shifting it to and from operative position, a transparent carrier mounted in the front-of said'body portion and provided withan opaque object dotted throughout, and said carrier providedwith means for directing light rays to said carrierto provide for the photographic printing of the dotted object on a sensitized surface opposing said body portion, said carrier having a curved inner edge to provide for the diffusion of lightrays directed thereto by said means.

8. A phototypographic rotogravure characterslug comprising a body portion having its front edge formed with a: transverse groove, the bottom ofsaid groove being segment-shaped in contour and the side walls under-cut, a carrier conforming in contour to the shape of said groove, seated therein and having its outer edge flush with the front edge of said body portion, said carrier further provided on its outer edge with a dotted object, said object and carrier constructed to provide for the action of light rays to photographically print said dotted object upon a sensitized surface opposing the front of said body portion, and said body portion having its sides provided with means extending from the rear edge thereof to said transverse groove for directing light rays to said carrier.

9. A phototypographic rotogravu-re character slug comprising a body portion provided with means to permit of the shifting thereof to and from operative position, a transparent segment-shaped carrier mounted in the front of said body portion and having its outer edge flush with the front edge of the body portion, said carrier provided with an opaque object dotted throughout, and said body portion having each of its side faces grooved, the grooves in said side faces extending from the rear edge of the body portion and terminating at the inner edge of said carrier and providing means for directing light rays thereto to photographically print said dotted object on a sensitized surface opposing the front edge of said body portion.

10. A phototypographic rotogravure character slug comprising a body portion corresponding in contour to the contour of the body of a linotype machine matrix and further having its side faces provided with transversely extending grooves and its front with a transversely extending groove into which open the grooves on the side faces of said body, a carrier secured within the groove at the front of said body and extending across the inner ends of the grooves on the side faces of the body said carrier having its outer edge provided with a dotted object forming means, and said carrier and dotted object forming means constructed to provide for the action of light rays thereon conducted through the grooved side faces of said body to provide for the photographing of said dotted object forming means on a sensitized surface.

11,. A phototypographic rotogravure character slug comprising a body portion, a carrier mounted in the front thereof and pro vided with a dotted object to be photographed, said carrier and said dotted object constructed to provide for the action of light rays on the dotted object to photograph the same on a sensitized surface opposing the front of said body portion, and said body portion provided with means for directing light rays towards the carrier for photographing said dotted object.

12. A phototypographic rotogravure character slug comprising a body portion in the form of a linotype machine matrix, a carrier seated in the front of said body and pro- Yided with a dotted object forming means to be photographed upon a sensitized surface, and said body portion provided with means for directing light rays to said carrier for the action of light rays to photograph the dotted object upon a sensitized surface opposing the front of said body portion.

13. A phototypographic rotogravure character slug comprising a transparent carrier provided with means to form pits or wells in a rotogravure plate.

ll. A phototypographic rotogravm'e character slug comprising a segn'iental transparent carrier provided with means to form pits or wells in a rotogravure plate.

15. A phototypographie rotogravure character slug comprising a body portion in the form of a linotype machine matrix, a carrier seated in the front of said body and provided with means to form pits or wells in a rotogravure plate.

In testimony whereof, I allix my signature hereto.

ROBERT J ARVIS SMOTHERS.

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