US1497008A - Stereotype plate and support - Google Patents

Description

' June 10 1924.

' 1,49 7,003 E. E. BEARD STEREOTYPE PLATE AND SUPPORT Filed Jan. 5, 1923 ff I flbtozmw Patented June 10, 1-924.

innea NT names. 1

ELMER BEARD, OF PORT ANGELES, WASHINGTON.

s'rnnnorrrn PLATE A1\TD s rroiaT.

Application filed January 5, 1923 Serial No. 610,932.

To all whom it may concern:

Be it known that I, ELMER E. BEARD, a citizen of the United States of America, and

resident of the city of Port Angeles, in 5 Clallam County, State of Washington,- have ofordinary type. 7

I This invention relates to a method andv means for securing the stereotype plate to the base block Without the employment. of

special costly machinery and with a minimum of time. s

It is alsoan object of my inventionto provide securing means for such stereotype plates which may be cast in place as the plate itself is cast. In this specification and in the claims I shall. refer to the plate as a stereotype plate, although it may bemade by, any processand isnot restricted in its use solely to plates made by the stereotype process, The inventionis applicable to' all twor part cuts or like matter which it is desired to'build' up to the proper type height. 7

Myinvention comprises thosenovel steps constituting the method and the novel constructions of the plate, base-block, and Se curing means which are illustrated in the accfon' pa'nying drawings, described in the following specifioation'and defined by the claims" terminating the same. 7

'In the accompanying drawings I have shown two possible securingmeans, both of which. may be. employed by the 'method which I shall proceed to describe. Figure. 1 is a transverse section'al view through a built up stereotype plate and base-block, showing a means of attaching the plate to the block.

Figure 2 is an enlarged sectional view through a stereotype plate with one type of securing means incorporated therein 7 Figure 3 is a bottom plan view, of the same. V I

[Figure 4 is a perspective view of the preferred type of securing means separate tailed grooves to receive said ribs.

from the stereotype plate and before incorportation therein. i b,

Figure 5 is a View similar to Figure 4 showing a slight modification.

It has been the practice in preparing stereotypeplates for attachment to base blocks to caistythe plate with a rib or ribs dependingtherefrom andto form the base block with one or more undercut or d0ve-, This necessitated the inst'allation and operation of special machinery for undercutting or dovetailing the ribs to fit the groove in the base blocks, inasmuch as such dovetailed ribs c'ou'ld not conveniently be cast. 'Such machinery was expensive and its operation 7' required skill and' time. Consequently it was not adaptedjfor making Lents rapidly; cuts could not be inserted which came ,in,

near the time of-closing the forms in a newspaper office, By my invention thei ribs may 7 be formed to interlock with the grooves in the base-block by a very simple operation following the casting and one whichrequires no special tools or skill. y f I I It; should be understood .that'my inven- 8 tion is particularly intended'for useinl small shops where the best facilities are often not available. 7 Itiis, therefore essential that an inexpensive means and method be'provided of quickly and easily castinga plate and for attaching it to the base-block. I' have shown the 'plate 1 as cast with a rib 10 integral therewith, the opposite sides of the rib being parallel and normal to the plates ba ck, or slightly inclined, in. order that they maybe cast easily in a mold and removed therefrom. In order to secure the plate upon the baseblock t I provide means which are secured in the ribs 10, orincor'porated therein when cast, which can thereafter be formed "to i'nterlockingly engage the undercutside or sides 41 of the groove or grooves 40 in the base-block. Such means are usually adapted to be engaged withthe under-cut sides 41' by relativesliding movement of the plate and block 4, and cannot be disengaged by movement of the plateand base-block in a direction normal with their faces. I The means for securing the plate in place in the groove, 40 of the base-block have shown as consisting of small channels comprising two parallel sides 2 and a connecting web 21. These are cast into the rib by inv sert-ing them into the groove of a casting mold, and by then pouring the metal to form the rib and cut plate between the faces 2 and behind the web 21, thus forming a composite plate and rib such as is shown in Figures 1, 2 and 3. The side faces or flanges 2 of the channel may define the outside faces of the rib, and the web 21 lies either in the rib 10 or in the plate 1. The metal of the plate and of the rib will adhere or weld to the metal of the channel so that a strong and permanent oint is formed. After the metal of the plate has cooled sufficiently, the faces 2 of the channel are pressed or projected outwardly, as with a screw driver or other pointed tool, to form lugs 22 in the sides of the rib. It will be understood that the channel is formed of pliable material. These lugs 22 project outwardly of the g-neral plane of both side faces of the rib and will ordinarily extend farthest at that edge of, the rib which is farthest from the base of'the rib 10, that is, farthest from the back of the plate 1. These lugs will engage beneath the undercut faces 41 of the plate groove and will secure together the plate 1 and base plate 4:. If desired, the lugs 22 may be projected from a single face 2 only. It is my intention to provide slits 23 in the web 21 at intervals to permit the stereotype metal to flow therethrough and to join themetal of the rib and plate through these slits. This, while desirable, is not essential and in the modification shown in Figure 5 has been omitted.

The out form thus madeup is light in construction, is of the proper height, the

amount of metal consumed n making the cut is not large, and the cut itself is small sothatit may be conveniently stored. l he entire operation, once the mold is heated,

. requires but very little time, and cuts may be, run, even though the mats from .which they are made. arrive buta shorttimeprior .to closing the forms. Obviously; many variations in the form and character ofthese groove-engaging members may be evolved, and I'do not desire to .lnnit myself to the particular members described Neither do Izdesire to be limited to any apparatus for practislngthe method disclosed, norto any succession of steps in the method. Thosefeatures which constitute my invention are setforth in the following claims.

y In carrying out my invention the backing block is not changed and the printing plate is changed only by incorporating therein the pliable metal strip .or strips which after being bent laterally or away from the rib form members which cooperate. with the undercut or dovetail groove or channel of the backing block to lock block and plate together.

It is evident that invention lies mainly in the use of a strip of pliable metal adapted to be secured to project from the plate when the plate is cast and then to have its projecting portion laterally bent so that it may serve as the means for fixing plate and block together.

lit is also evident that the chief element of commercial sale is the pliable metal strips ready for use in making the printing plates.

The characteristic feature of my inven tion is casting or molding into the rib of a plate of a member capable of being manually deformed or modified in shape or position after casting so as to be thereby interlocked with an undercut groove in the base and thereby lock the two together.

V i hat I claim as my invention is:

1. A printing plate having a rib projecting from its back face and a pliable member lying in a side face of the rib and secured along the base of the rib and adapted to be bent outwardly from the rib to constitute a member adapted to interlock with an undercut groove in a base block.

2. A printing plate having a rib projecting from its back face and having incorporated therein by casting a securing member adapted to be bent outwardly from the side face of the rib to thereby form a dovetail member adapted to cooperate with an under' metal elements partially imbedded therein at casting, the projecting parts of said elements beingbendable to enable them to interlockingly engage the undercut face of a groove in the backing block. r

5. A stereotype plate and a base-block therefor, the plate having a ribincluding a pliable channel element integral therewith, said channel being extended laterally at intervals beyond the generalplane of the ribs side face, and the base-block having a groove of substantially thesame width as the rib, and undercut to receive the said channel extensions. 6. In a stereotype cut form, the combination with a cast plate and a parallel-sided rib integral therewith, of projectionssecured in said rib and extending laterally of the rib, and a base-block for said plate having a rib receiving trough, said trough being undercut to receivesaid projections.

7. A stereotype plate having a rib cast integral therewith, anda plurality of members secured in said rib and projecting from a side thereof.

8. A stereotype platehaving a rib cast integral therewith, and a plurality of members secured in said rib and projecting from a side thereof above the bottom edge of the rib.

9. A stereotype plate having a rib cast integral therewith, the side faces of said rib as cast including and being defined by a pair of parallel plates of pliable material, said pliable plates being later extended at intervals outwardly of their original plane.

10. A stereotype plate having a rib cast integral therewith, said rib including a channel of pliable material defining its sides at the edge distant from the plate, the sides of said channel being later projected laterally at intervals beyond its original plane.

11. A pliable metal strip of a parallelsided channel cross section adapted to have its base imbedded in a cast printing plate With its Wings projecting whereby by bending outwardly the projecting Wings a dovetail member is formed adapted to interlock the plate With a base block.

12. As an article of manufacture a strip of pliable metal adapted to be secured to ELMER E. BEARD.

Images