US1481441A - Printer's material and means for producing same - Google Patents

Description

ASEAM Jam 22, 19924.,-

A. G. STEVENSON PRINTERS MATERIAL AND MEANS FOR PRODUCING SAME 2 Shees-Sheet 1 Filed Jan. 20, 1921 Jan, 22, 1924, Y. EASAM A. G. sTEvENsoN PRINTERS MATERIAL AND MEANS FOR PRODUCING SAME Filed Jam 20. 1921 2 Sheets-.Sheet 2 2z @la I [1 'm BSI WST/I las@ Infini/i4 fv'rfmmur' sgiH Bu asiZ @mvg oalA M@ my wyffgwmf ,l

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PRINTERS' MATERIAL N'D MENS FOR PRODUCING SAME.

I Application' led January 20, 1921. Serial No. 438,769.

To. all whom it may concern.'

Be itknown that I, ASHTON G. STEVEN- soN,a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Printers" Materials and Means for Producing Same, of which the following is a specification.

My invention relates to improvements in printers material and means for producing same, and has special reference to printing slugs having overhanging printing surfaces, the production vof separate supporting slugs or printers furniture for supporting the overhanging tops of the printing slugs and molds and appurtenances for ,rapidly producing such printers material on standard slug casting machines.

The speciiic product of my 'invention is a printing slug of the well known linotype y character, but instead of being provided with a body as thick as the width of the top or printin surface of the sluh itis provided with a re atively thin body which rises to within about one sixth of an inchof the printing surface, and which body is located beneath one longitudinal edge of theprintino surface.

Ireferably the under side of the top or printing part of the slug is arranged at the same height as electrotype plate supports so that foundations which are adapted to properly\support electrotypes can be used to support the overhanging parts of my novel slugs.

Furthermore I provide a moldl which is of a thickness or' height to produce type furniture of the standard height and I provide iappurtenances for use with such a-low mold by which I am enabled, by the use f what are known'as standard linotype matrices or matrix slides, to produce printing slugs having bodies of uniform thickness arranged on one side of the slug and having any desired width of face such as 18, 24, or 36 points wide, or even widJer-faces.

The means which I employ to produce these novel overhanging slugs comprises a mold similar -to a standard so-called linotype mold in which linotype printing slugs of the well known form are cast, except that as explained above, the mold is not so high. In other words., when a matrix is placed directly against the face of the mold the slug which it produces is about one sixth `of an inch lower than the standard linotype printin slugs.

owever, lmy molds are used in the standard line casting machines and the space of approximately one sixth of an inch between the face of my mold and the -fa'ces of the matrices of standard linotype dimensions which are used in such machines, is filled in by means of a plate, frame or mask, preferably permanently secured't lthe face of the mold and adapted to close\or till the space between the mold and the adjacent faces of the matrices, that is at the lower edge of the mold face and atboth ends' thereof. The upper side of this space is closed by an adjustable liner which is so arranged that the upper edge of the opening can be spaced at diiferent distances from the lower closing bar of the same `for the purpose of producing printing faces on the slugs of dilerent widths. The matrices or slidesare adapted ,Y

to contact with the adjacent front face of the frame or mask and of, the liner and close the face of the niold opening. The molten type metal is forced into the mold slot from the rear intheL usual manner. Instead of making the mold slotA slightly tapered and narrower at the rear than at the ront to facilitate the ejection of the slugs, I make the top and bottom surfaces of the mold slot exactly parallel with each other and rely upon the shrinkinol of theslug as \it coolsv to free it suiiciently to permit its' easyejection. I amthus enabled to avoid the production of fitting ribs and thetrim- ,ming of these ribs of the slug in its ejection,

which is a common practice at the present time toI makethe slug bodies with parallel sides. Furthermore the supporting wall or the body of .my novel slu is flat and uniform in thickness and Ig thus .avoid the crushing ofthe adjacent printing material by the locking ,of the form such as occursl when linotype slugs having fitting ribs on their sides are used. This is a great detriment in the systems now in use for the reason that the relatively soft filling or quad strips or blocks which are now used are marked, distorted or destroyed by this contact with the narrow fitting ribs on the printing material as now commonly produced, and these strips or material can seldom be used a second time. Furthermore the gradual giving f away or compression of the material ,con-

tacting with the fitting strips, under the severe pressure to which they are subjected in use, in combination with the vibration of' the printing press, tends to crush the ribs into the contacting material and loosen the material in the chase thus oftentimes leadinor to serious results. v

preferably make the liner which closes the upper, edge of the mold slot flat on one side and provided with a mold filling rib" on the other side so that it is capable of producing two different widths of printing slugs by being reversed in position, in other words turned upside down. J

For wider lfaced slugs I provide blank liners which I arrange beneath the'mold -closing liner spoken of to raise same and with the use of each blank liner I am en abled to produce two different widths of faces, by reversing the edge liner as described.

Figure 7 is a front perspective view of Aa Amold liner or mold part;

Figure 8 is a front perspective view of my reversible liner;

Figure 9 is aftop plan view of a printing form partly made of my novel printing slugs;

Figure 10 is a sectional vie'wi on the line 10-10 of Figure 9;

Figure 11 is a front elevation of a mold prepared for producing quad slugs or type furniture;

Figure 12 is a vertical section on the line 12-12 of Figure 11, showing a slide block in position before one of my low molds.

In said drawings, 1 represents a mold which is adapted to be used on the mold wheel of a printing slug casting machine of the kind commonly known as av linotype machine. The mold 1 comprises a base 2 l and a cap 3. The lbase is adapted to lbe secured to a mold wheel (not shown) lv,by

screws 4 and the cap is adapted to be secured to the base by screws 5 arranged at the ends of the mold. Between the base and cap is provided a mold slot 6 in which the body of the slug is cast. t

The mold helght or thicmees measured carry in one fcea removable slide 8 dove- -tailed to the block. This slide has a matrix face '9 which is adapted to be presented to the mold for producing a border printing slug such as is indicated at 10, although obviously an other form of printing slug may be pro uced. As (shown, the matrix face 9 ofthe slide 8 would not contact with my low mold, and for 'the purpose of closingA the face part of the mold and producing a slugof the standard height I provide a frame-like flat member, mask or filler 11 for insertion between the slide and the mold and of a thickness to make up the amount that my mold is thinner than the standard mold. Then when the slide isf positioned against the face of-the mask 11 it closes the face of the mold.

The mask 11 consists of a lower bar 12 whose upper edge is exactly flush with the top of the face of the base of the mold and end parts 14 which lie at each end of the mold slot and complete the closure of the ends of the one sixth inch space. Preferably the mask 11 is carried on a flat liner member 15 adapted to be inserted between the base and the topj of the mold. The under side of the liner 15 is provided with flat rigid spacer projections 16 at its ends which raise the body of this liner above the lower surface of the mold slot and provides the mold slot beneath the liner or filler 15 to produce a slug having a Ibody of the desired thickness as shown at 17 (Figure 6).

To close the upper side of the one sixth inch space between t-he slide and the face of the mold or in `other words the face ofk the liner 15, I provide an auxiliary liner 18 adapted to be inserted within the mold and lie upon the upper face of the liner 15 and beneath the mold face of the cap 3. The forward edge of the auxiliary liner 18 projects into contact with the adjacent face of the slide 8 and it is of a length to fit tightly between the ends 14 of the mask 11.

The liner-18 being arranged on top of the liner 15 and the liner 15 being only as wide as the base and top of the mold there is a space 19 provided at the front of the mold in front of the forward edge of the liner 15 which is in communication, at its lower edge, with the mold slot and into which the molten meta-l is forced when the slug is cast. This space provides the mold slot with a right-angled projecting part which produces an overhanging top 2O on the slug.

It is desirable to make slugs with different widths of tops or faces and the auxiliary liner or mold part 18 lends itself to this purpose. I provide.l upon the front part 21 of` the liner 18a filler strip 22 which is preferably integral therewith and which permits the making of a slug face having an overhanging part as wide as the thickness of the liner 15 when the liner 18 is inserted with the liner strip 22 uppermost, a's shown in Figure 2.` The said filler 'strip 22 extends laterally lfrom the body of the liner 18 in one direction only, as best shown in Figures 2 and 3. In Figure 3 I have shown that when this liner 18 is reversed the strip 22 fills in the upper part of the space 19 and produces a narrower faced s ug.

' In Figures 4 and 5 I have shown that by the insertion of `an extra narrow liner 23 similar to the liner 15 and thus raising the liner 18, Iam enabled to produce slugs having faces wider than the two just described by the thickness of the extra liner 23, onewidth formed by arranging the strip 22 on the upper side and one by arranging it on the lower Side as formerly.

It will be obvious that instead of the slide 8 and the block 7 for producing borders, etc., I may use a line of matrices such as are commonly used in suchv slug casting machines and produce printing slugs with overhanging printing faces such as -are illustrated at 24, Figures 9 and 10.

The overhanging face 2() of the printing slug being produced between the face of the mold as continued bythe .forward edge 25 of the liner 15 and the opposed face of the slide 8' and projecting forward edge of the liner 18,*or when matrices are used, the aligned characterfaces of the matrices f which are pressed against the outer face of the mask 11, and projection 22 of liner 18, this overhanging part of the slug is ofthe samethickness as the mask 11. In other words, the under side or face of the .overhanging part 20 of the slug is raised above the lower edge 26 of the slug the thickness of the mold from front to back. Consequently by removing the mask 11 and the upper closing liner 18 and placingr a special flat slide 27 in a slide block similar to the slide block 7 having a plain face for contact with the face proper of the mold, I am enabled to produce quad blocks 28 of a height `to fill in beneaththe overhanging port them.

while I have only illustrated un,v pie,

duction of quad blocks or 'type furniture which are in the Aform of solid bars of the proper height, it is obvious that by the use of suitable liners or mold parts as illustrated in my' United States Patent No.

1,260,828, in connection with the mold illus furniture or quad blocks 29 and 30 illustrated in Fi ures 9 and 10.

Instead o making the mold-slot tapered andv Wider vertically at its face than at its rea-r edge to, facilitate the ejection of the slug, I make the top and bottom surfaces of the slug exactly' parallel with eachother, thus producing the body 17 with side faces which are exactly parallel and in accordance with the construction of the mold, at exact right angles to the bottom edge and the top surface of the slug. For the purposes of ejection of the slugs in the process of smanufacture I rely upon the shrinkage of theV body of the slug as it cools to produce suflicient freedom of the slug in the mold slot to permit its ready ejection by pressure from the rear in the manner common to such machines.

To assistl in the accurate placement of the mask 11 and its registry with the lower surface of the mold slot I provide inwardly extending ribs or projections 31 on the ends of the maskll adapted to enter a, horizontal groove 32 in the face of the base of the mold which is parallel to the lower face or bottom of the mold slpt. Between the inner ends 33 of the ,projection 31 the-lower edge 34.0f the mask 11 is made flush withH the upper wall 35 of the groove 32 andk consequently the lower edge flvserves, as a stop against which the toe 3 6 of the standard slide block '7 or the toes on standard matrices are set by the mechanism of the machine and by which the slide or matrices, as the case may be, arel accurately aligned with the moldslot. Y

In the use of the flat slide 27 for the production of type furniture, the frame be,- ing removed and the slide block v37 which carries the fiat slide 27 being positioned by the machine in which `the device is used,

(in which my-impro'ved mold is adapted to be used, the-cast slug is' forced out of the w mold slot by an ejector which operates from the rearof the mold and pushes the slug out through the face of the mold. To with- ,20

stand this pressure abuttingpins are arranged to contact^ with the'mold at the ends of tlie slot'and as these pins are arranged in the standard 4linotype machine of a length to contact properly with 'the face of a mold of standard thickness, the ends 14,0f the xmask 11 'serve to contact with these abutment pins and resist the ejection pressure.

Ai; times, when I remove the mask 11 for the casting of a quad block 28 I provide l trated herein I can produce the hollow `type small contact plates 39 which are securedto 13 the face of the mold liner 15 by the same screws by which the mask 11 is secured in place, and these plates 39 are thick enough to cont-act` with the stop pins spoken of. I may also obviously provide two of the liners lone having a mask 1l secured to its face and the other the AStop blocks 39Q Y As many modifications of my invention will readily suggest themselves to one skilled in the art'I do not limit or confine my invention to the specific details of construction herein vshown and described, these being merely typical of various construct-ions in which 'my invention can be embodied.

I claim;

1. The improvements herein described comprising ay mold adapted to cast low spacing printers material in combination with mold edge ldefining means'adapted to be secured to the yface of the mold and to project forward therefrom for contact with the so-called linotype matrices in their ordinary casting positions relatively to a standard thickness mold and for rthe production of printing slugs having overhanging printing faces and a liner adapted to be reversibl)v arranged to produce overhanging faces of differentwidths.

2.*The improvements herein described comprising a slug cast-ing mold adapted to cast low spacing prin-ters material in combination with 'mold edge defining means adapted to be removably secured to the face of the mold and'to project forward there# from for contact with the so-called linotype matrices in their ordina-ry casting positions relatively'to a standard thickness mold, and a removable liner` arranged above the mold space and having an edge projecting forward into the plane of the forward face of said mold defining means whereby the mold face is extended laterally to produce printing faces on the slug wider than the body thereof and extending on one side only of the body.

3. The improvement-s herein described .comprising a slug mold having a base and a cap separated to providel a parallel sided mold slot, the mold being of less than standard height. a. filler mask removably secured to the face of the mold adapted to extend the jmold slot to roducev a slug of a st-andard height and lhaving its mold forming edges coincident with the bot-torn, and ends of the mold slot, a liner for the mold adapted to be secured beneath the mold cap and its forward edge adapted to define the upper edge of the mold slot. beyond the face of the mold, and a filler liner beneath the first liner for raising same to produce a slug having an overhanging printing or top surface and a relatively thin body.

4,. In a device of the kind described, a reversible liner which is fiat on one side and has a. rib extending on the other and adapted to produce a. certain width of face on a slug in one posit-ion in the mold and to produce a different width of face when reverse-d in the mold.

5. A mold for casting printing slugs in combination with a frame vfor extendingthe mold slot forwardly and a liner movable relatively to the frame for making different widths of faces on printing slugs. said liner having a. rib extending on one side whereby when this rib is turned toward the frame one. width of face will be produced and when turned away from the frame a, Wider faced printing slug will be produced.

6. A liner for a slug casti mold having a face rib on one side., the hner being reversible for making slugs having two widths of faces. y

Signed at. Chicago,A Illinois, this 11th day of January, 1921.

ASHTON (ir/. STEVENSON.

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