US2028978A - Matrix and method of manufacturing the same - Google Patents

Description

A. H. HEDLY 2 Sheets-Sheet l MATRIX AND METHOD OF MANUFACTURING THE SAME Jan. 28, 1936.

Filed Nov. 5, 1954 Jan. 28, 1936. H, HEDLY 2,028,978

MATRIX AND METHOD OF MANUFACTURING THE SAME Filed Nov. 5, 1954 2 Sheets-Sheet 2 W2 1 9. vz dja jdefiibrr draw/50% 5M1? Patented Jan. 28, 1936 PATENT OFFICE MATRIX AND METHOD OF MANUFACTUR- ING THE SAME Arthur H. Hedly, Chicago,

low poration of Illinois Typograph Company,

111., assignor to Lud- Chicago, 111., a cor- Appiication November 5, 1934, Serial No. 751,630 15 Claims. (Cl. 101-401.2)

My invention relates more especially to matrices used in the production of printing-faceequipped bodies, particularly, though not exclusively, line slugs and involving in the manufacture thereof, the formation of the matrices by forcing into matrix blanks, as for example and commonly of brass, punches provided with punch surfaces conforming to the forms of type faces to be cast in the matrices.

1o Considerable diificulty has been experienced in the commercial production of driven matrices formed from matrix blanks of the desired hard material, commonly brass, due to the reluctance to flow of the metal of the matrix blank into the 15 counters or grooves of the punch, particularly when such counters or grooves are relatively narrow and deep, resulting in the printing faces of the bodies, cast from said matrices, presenting such low height shallow counters, that ink re- 20 ceived therein will transfer to the paper in the printing operation and produce an imperfect printing impression.

My object is to overcome the objection above set forth and provide for the production of count- 25 ers or ribs on the matrices of such height as to insure against the transfer to the paper of ink from the counters or grooves in the printing face portions of the printing-face-equipped bodies made from the matrices, even where these count- 30 ers are relatively narrow, while permitting of the manufacture of the bodies of the matrices including the portions thereof in which the matrixcavities are to be formed, of desirable non-corrodable metal, as for example brass commonly used 35 in the production of type matrices and which is of suflicient hardness to withstand abuse in handling.

Referring to the accompanying drawings:

Figure 1 is a broken plan view of matrix-blank 40 holding mechanism which may be used for holding the blank during the driving operation.

Figure 2 is a broken sectional view taken at the irregular line 2-2 on Fig. l and viewed'in the direction of the arrow.

Figure 3 is a face View of one form of matrix embodying my invention and produced in accordance with my invention.

Figure 4 is a section taken at theline 44 on Fig. 3 and viewed in the direction of the arrows. 50 Figure 5 is a view like Fig. 3 of another embodiment of the invention and produced in accordance with my method.

Figure 6 is a section taken at the line 66 on Fig. 5 and viewed in the direction'of the arrows.

.55 1 Figure 7 is a viewllike Fig. 3 of another embodiment of the invention and produced in accordance with my method.

Figure 8 is an end view of the matrix of Fig. 7. Figure 9 is a bottom plan view of another embodiment of the invention and produced in ac- 5 cordance with my method.

Figure 10 is an edge view of the matrix of Fig. 9.

Figure 11 is a bottom plan view of still another embodiment of the invention and produced in accordance with my method; and 10 Figure 12, a section taken at the line |2-|2 on Fig. 11 and viewed in the direction of the arrows.

In accordance with my invention the body of the matrix blank, and including the portion there- 15 of in which the matrix cavity is to be formed, is made of such metal as to be suitable for the driving therein of the matrix cavity and the mold ing in this cavity of type metal, and be capable of withstanding abuse in handling, it being preferred that the metal used be brass as now commonly used for the making of matrix blanks; and

the part of the blank presenting the counterforming portion, or portions, and provided as a relatively thin section, backed by harder metal, such as for example steel, forming an anvil resulting in such enforced augmented flow of the softer metal of the blank into the counter portions of the punch in the operation of driving the matrix cavity, as to insure the forming of the desired high counters in the matrix cavity.

According to the embodiment of the invention shown in Figs. 3 and 4 which illustrate a matrix for the casting of a capital M having sharp counters 12, the body of the matrix blank from which the matrix referred to is formed, is provided with a recess 13 in the form of a bore extending from side to side thereof, as represented, to cause the blank to present a relatively thin web section I 4 extending along the center of the matrix blank, the recess l3 containing a closely-fitting round bar l5 of metal harder than the body of the matrix blank, as for example steel, which extends throughout substantially the full length of the recess 13 and forms an anvil functioning in the driving operation as above stated.

In the embodiment of the invention illustrated in Figs. 5 and 6 wherein a matrix for casting a capital B is illustrated having small counters represented at [6, the body of the matrix blank from which the matrix shown is formed is provided with a recess I! in the form of a bore extending from end to end thereof as represented to cause the blank to present a relatively thin web section l8 extending along the center of the matrix, the

flrecess 11 containing a closely fitting round bar I9 V V of metal harder than the body of the metal of the matrix'bl'ank, as for example steel, which'extends' throughout substantially the "full length 'of the recess and forms an anvil in the driving operation.

In' the embodiment of the invention illustrated 1 f in Figs. .7 and 8, wherein a matrix for casting a cap'ital W is provided havingjnarrow counters.. extending over a large area, the body of the matrix blank, is provided with two parallel recesses 21 v inthe form ,of' bores extending fromend to ,end' i of the matrix -blank,- these recesses containing 5 i closely fitting round bars 22 of metal harder than the body of thematrixblank, as for example steel,

I the matrix blank the provision of the recessesjljl' asstated causing like sections on which portions of the counters zil are formedand thebars 22' serving" tcfv anvil of the matrix blank is formed, as for example function in the. driving. operation.

The, embodiment of the invention A illustrated V 1n Figsf9arid l0 contemplates the forming of the 'gbodyportion of thematrix blank, with a recess 23in its backjsurface, in the form of a groove, or channel, thereby providing a relatively thin web section 24 in which the matrix cavity is produced;

"and locating in the recess 23 a block 25 of harder metal than the metal of whichthe body portion stehWhichfunctions asan anvil in the matrix- .driving operation. 7 I I f 'In accordance with the. embodiment of ,the invention shown in Figs. 11 and 12 the body of the.

" matrix blank is annularly recessed at its back surface, as represented at 26,:to cause the matrixcavity-forming portion of the matrix to be inthe 'form 'ofa thin web 21, the recess 26 containing a circular block 28 functioning asin the case of the I block 250i Figs. 9 and 10.

.; It :is necessary that the matrix blank, in the punching operation; be. confined against lateral and downward deformation at its side and bottom surfaces, respectively. 7 This may be accomplished in any desirableway as for example by the means shown in Figs. '1 and2 which are of a construction well known in the art, andtherefore'a brief def.

scription thereof will suffice.

by screws, this block lhaving'one cornerthereof recessed as represented at 3|, the'walls .of this I recessand represented at32and 33 extending at a"right angle to each other and being lined with 7 bars 34 and35, the block'30, lined as stated, connon 31, is

stituting-onej aw of a chuck in which the matrix 7: blank is to be held. The other jaw of this chuck, 1. representedat 36 and formed with an apex porguidingly confined at its outer end in parallel guides 38, so disposed that the jaw is movable from the closed position shown in Fig.1;

into. open position, and vice, versa. I

The extreme apexportion 31 of the jaw 36 con-V tains. a recess 39, the side wall 40 of "which is 7 parallel withthe inner face of the plate 34,- the recess 39 containing a block 4| held in place by a screw device 42, the outer face of the block 4| 7 being'parallel with the inner face of the bar 35.

I'Ihereis thus provided between :the bars 34 and 35, thewall40 and face 43 of the block 4|, a recess 44 in which the matrix blank herein represented at 4,5, is located.

. 'rigid'foundation which, in thecase of the particular machine shown, is a hardened'steel plate 46 to present relativelythin web-s What I claim as, new, and desireto secure. by

"LettersPatenuisE' 1* .1. 'The methodof forming' matrices', which con+ sists inproviding a metal matrix The mechanism shown comprisesabed 29 superpos' ed by a block 30 rigidly secured theretoas Thelbottoin ofthe matrix blank rests upon a by any suitable mechanism asifor e'xample by pneumaticmechanism (-not'sh'own), to firmly clamp the blank '45, the side walls of the recess "44 and the ;po rti'on; cf' the machine uponiwhich the blank rests serving to prevent freelateral and downward flow of the metal of the matrix blank 5 in the operation .of'forcing'the punch into it to wformthematrix cavity.

' While I have illustrated and described certain 'waysinwhich my improved method may be prac;-

ticed and certain embodiments. of my inventiomIf "do not 'wish'to be understood as intending to limit" 20 it gtheretofas .1 the" method may; be practiced fin other ways andthe constructions shown variously modified and-altered;withoutdeparting from the V spirit of my invention.

body the portionthereofqin which the matrix cavityiis to'be 5 formed comprising a relatively thin websection form'inga'portion only of said body, backing said 1 web-section'with material harderthan that form 7 ing said body, and -forcingja matrix-forming punch'againstsaid portion to form the'matrix; cavity therein; .j

' 3. The methodtof airingnaaice tnehaao sists in providing a metal matrix body, recessing' said body between its upper and lower-surfaces adjacent theportionthereof in which the matrix 56 cavity is to beform'edito cause said portionto comprise'a relatively thin web section, providing in the recessed portion off sai'dbody backing? for said web-section comprising material harder than wthatforming said body,'and forcing a vmatrix- '5'5": forming punch against saidrportion to form the ,matrix cavity therein.

4. The inethod of forming matrices whiclicone V sists in providing a metal matrix body; boring said body between its'upper and lowersurfaces'ad- 60.

jacent the portion thereofin' which the m'atrix cavityistobe formedto cause said portionito comprise a relatively thin web section; providing in the bored portion of saidbody backing'for said lweb-sec'tion comprising material harder than that 65 V forining said body, and. forcing amatrixforming punch against said portion toform the matrix cavity therein.

' 5. The methodof forming matrices which'consists inproviding a inetal matrixbodyhaving 70 V substantially parallel .recesses; between its upper and lower surfaces adjacent the portion; thereof in which the matrix cavity vis to beformed to ,cause 'saidpqrtion to comprise a relatively tl iin web-section, providing infs'aid recesses backingfor 7'5 r 7 4 I 7 35 2. The'me'thod'of forming matrices whichicon' sists in providing a metaltmatrix body recessed said web-section comprising material harder than that forming said body, and forcing a matrixforming punch against said portion to form the matrix cavity therein.

6. The method of forming matrices which consists in providing a metal matrix body recessed at its back surface to cause the portion in which the matrix cavity is to be formed to comprise a relatively thin web-section, providing, in the recess in said body, backing for said web-section comprising material harder than that forming said body, and forcing a matrix-forming punch against said portion to form the matrix cavity therein.

7. The method of forming matrices which consists in providing a metal matrix body having a portion integral therewith in which the matrix cavity is to be formed comprising a relatively thin web section, backing said web section with material harder than that forming said body, and forcing a matrix-forming punch against said portion to form the matrix cavity therein.

8. A matrix blank formed of a body the matrixcavity portion of which comprises a relatively thin web-section forming a portion only of said body integral therewith, and backing for said web-section formed of material harder than that forming said web-section.

9. A matrix blank formed of a body recessed between its upper and lower surfaces adjacent its matrix-cavity portion to cause said portion to comprise a relatively thin web-section and backing in said recess for said web-section formed of material harder than that forming said web-section.

10. A matrix blank formed of a body having substantially parallel recesses between its upper and lower surfaces adjacent its matrix-cavity portion to cause said portion to comprise a relatively thinweb section, and backing in said recesses for said web section formed of material harder than that forming said web section.

11. A matrix blank formed of a body recessed at its back surface to cause its matrix cavity portion to comprise a relatively thin web-section and backing in said recess for said web-section formed of material harder than that forming said websection.

12. A matrix the body, including the matrixcavity forming portion, of which is formed integrally of one kind of metal, said portion comprising a relatively thin web-section, and backing for and substantially coextensive with said websection formed of material harder than that forming said web-section.

13. A matrix formed of a body having a relatively thin web section integral therewith and in which the matrix cavity is provided, and backing for and substantially coextensive with said web section formed of material harder than that forming said web section.

14. A matrix comprising, in combination, a matrix body formed with a relatively thin portion and having a recess below said portion, said thin portion having a matrix cavity formed therein, and a backing of material harder than that of which said body is formed contained in and completely filling said recess.

15. A matrix comprising, in combination, a matrix body having the impression receiving characteristics of brass comprising a relatively thin shell presenting a recess opening at the rear thereof and having a matrix cavity formed therein, and a block of material having the deformation resistant characteristics of steel housed in and contacting substantially the entire surfaces of said recess to form a backing for said matrix cavity carrying portion.

ARTHUR H. HEDLY.

Images