US1392621A - Machine for shaping matrices - Google Patents

Description

L. H. BECHMAN.

MACHINE FOR SHAPING MATRICES.

APPLICATION- FILED AUG. 5. 1919- Patented Oct. 4, 1921.

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L. H. BECHMAN.

MACHINE FOR SHAPING MATRICES.

APPLICATION man AUG.5. ms. 7 1,392,621 Patented Oct. 4, 1921.

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LoUIsII. BECHMAN, or BATTLE CREEK, MICHIGAN, ASSIGNOR To DUPLEX PRINTING PRESS ooMrANY, or BAT LE CREEK, MICHIGAN, A CORPORATION or MICHIGAN.

MACHINE rofa SHAPING MATRICES.

To all whom it may concern:

Be it known that I,.LoUIs H. BEOHMAN,

I a citizen of the United States, residing at Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Machines for Shaping Matrices; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is a novel improvement" in means for shaping the matrices used in casting stereotype-plates and the like before the matrices are inserted in the casting boxes.

Primary objects of theinvention are to pro-- liminarily shape the matrix; and to partially dry and set the matrix.

Further objects are to so construct the form. around which the matrix is shaped that any steam developed by the heating of the matrix will readily escape; and to so construct the flexible bending sheet as to provide for the ready escape of steam or' moisture and at the same time enhance the flexibility of thesheet; also to provide simultaneously shaped and heated to dry same if desired,.such apparatus being in,

- expensive in construction, durable, exceedplates.

ingly simple in operation, and producing I.

very valuable practical results.

I will explain the invention in connec-' tion with the accompanying drawings which illustrate practical embodiments thereof; and to enable others to readily adapt and use the same. In the claims I have summarizedtheessentials of the invention and the novel construction and combination of parts, for all of which protection is desired.

In said drawings:

Figure 1 is a side elevation of a complete apparatus for shaping tubular stereotype Specification of Letters. Patent.

f Application 'filed August 5, 1919. Serial No.-315,485.

Fig, 2 is an enlarged elevation of the upper part of suchapparatus, viewed at right angles to Fig. 1.

Fig; 3 is a top plan View of Fig. 2 show-' ing the shaping sheet open and a matrix inserted .1n position preparatory to being shaped.

. Fig. 4 is an enlarged detail transverse section of part of the form.

Fig. 5 is a front view of an apparatus for shaping semi-cylindric. stereotype plates.

Fig. 6 is a transverse sectional view on line 6-6, Fig. 5. Q

- The apparatus shown in Figs. 1 to 4 is especially constructed for shaping matrices used in casting tubular stereotype plates; and as shown comprises a cylindric form 1 which may be of cast metal and should be of an external diameter approximately corresponding to the length or width and curvature of the finished tubular stereotype plate; or of a diameter, plus. the thickness of the matrix, approximately corresponding to the.

internal diameter or curvature of the box in which the matrix is to be used in casting the plate. And this form should be slightly wider or longer than the length or width of the matrix to be treated thereon. r

The form 1 is preferably hollow and may be supported on end in any suitable manner, and is preferably arranged in a vertical position. As shown it is mounted upon a stand or base 2; which may be of any suitable construction; and if desired the stand and form may be cast integral.

Each form has in its exterior surface a series of small parallel grooves or channels,

can readily escape through such channels.

These channels or ducts are preferably so close together and so narrow in width that; they Wlll not interfere with or prevent the proper curving of the matrix while at the same time they provide for the rapid escape of the hydrousvapors. It has been demon.- strated in practice that such channels greatly facilitate the evaporation and drying of the matrix on the form.

a The form. may be heated by any suitable means. In the drawings a gas burner 5 is 7 indicated, located within the lower end of the form,and gas can be supplied to said burner by a pipe that may extend through the stand 2 and be connected to any suitable gas supply.

Cooperating with this form 1 is a flexible bending sheet 3, which is of sufficient length to entirely surround the form, and approximately corresponds in width to the lengt of the form. r

The sheet 3 'is preferably made of resilient sheet steel and naturally tends to assume a straight or flat condition, when released. It

' provide for escape of moisture evaporated from the matrix in the drying thereof, when" should-be'strong but sufficiently pliable to 7 enable it to conform closely to the curved surface of the form and wrap around the same, as in Figs. 1 and 6. To facilitate bending of the sheet, to lighten it, and to clamped by the sheet against the form, the sheet is preferably provided with numerous small perforations, indicated at 3, which maybe of. any suitable'diameter and spaced as desired.

One edge of this sheet isattached to the form. in any suitable manner and the other end is free. In the example shown the attached end of the sheet is secured between two bars or strips 4, 4", which are attached to the side of the form by bolts 4 or other suitable means. 1 The bar 4 corresponds in thickness to a matrix, and-therefore'separates the end of the sheetfrom the periphery of the forma distance equal to the thickness of the matrix. The bar 1 also forms a matrix stop, as it is fastened in position to arrest the edge of a matrix M when inserted between the sheet and the form, as

indicated in Fig. 3. v V

The free end of the sheet 3 may be pro-' vidcd with a. handle 4: of any-suitable construction by which it can be conveniently operated, and this handle may be engaged by any suitable retaining device to hold the sheet in closed position. A catch 4 pivoted on the bar 4P is indicated in the drawings.

As the sheet 3 is flexible and springy it would, unless restrained, fly .too far open when'disengaged from the retaining device or catch, and to prevent this and to hold about 90-degrees removed from the bar 4" in Figs. 13; and about 45 degrees removed from the bar 4* in the form shown in'Figs.

5 and 6. The

part 6? supports the lower edge of the sheet which slides thereon in opening and closing; and to facilitate the sliding movement of the edge of the sheet 3 on the part 6, I preferably provide it with a shield 6, on which the sheet. can readily slide.

When the sheet 3 is'disengaged from the catch if it will by reason of its natural resiliency spring open to the position shown in Figs. 2 and 3, being supported by the shield 6 andarrested by contact of it's handle 4 with the vertical part of the rod '6.

I do not consider the invention restricted to the particular construction shownfor supporting and holding the sheet3in position'when opened. i

The apparatus shown matrices for semi-cylindric stereotype plates;

and the form 1 is correspondingly 'sha pedl.

The other parts are constructed substantially like the corresponding parts in'Figs.

1 to 4 and are correspondingly lettered. In this case, however, the hook 4 is attached to a. stop bar 4 approximately diametrically opposite bar 4.

When it is desired to prepare a matrix,

the flexible sheet 3 is opened, as indicated in Fig. 3; then thematrix is inserted between the sheet and form and its end alined against the bar 49, the matrix is readily in troduced edgewise between the sheet .3 and the form and is guided into position by the curvature of the sheet. Then the sheet 3 is wrapped, or closed, around the form and matrix, as indicated in Figs. 1 and ,6, bring- Figs. 5' and 6 is more particularly adapted for shaping ing the matrix easily around and closely] against the form and holding the matrix between the form and the sheet. 'In this way the matrix is readily shaped to fit the curvature of the form. By fastening the sheet by catch 4 the matrix can be held 'against the form for any length of time desired. A. matrix may be shaped on the apparatus shown in Figs. 5 and '6'in like .manner. g V g The matrix may be wholly or partially dried and set while it is so held around the form, by heating the formyand such heated form will cause thematrix to rapidly dry and hardenas the moisture in the matrix evaporates and escapes rapidly through the channels l in the form and perforations 3 in' the sheet. 7

When it 1s des red to "remove the matrix the sheetis opened up and the matrix can be readily drawn off the form, as is obvious.

An'important practicaladvantage of my invention is the facility with which the matrices can be ba'cked when and where it is desirable to do so prior to shaping;

lVhen matrices are made from type matter having considerable blank spaces it is necessary to paste backing on the reverse side of the mats to support these blank portions against the pressure of the metal" matrix while flat and then dried on the matrix on a steam table with the matrix fiat. As airesult when the matrix was afterward curved into a casting box pieces of the backing would break: loose partially or entirely, and either fall off or get out of for use; and when such shaped. and backed matrix is placed'i-n the casting boxes it is in perfect condition. This result has never before been accomplished with the heretofore known matrix roasters or scorchers as they have never provided for the escape ofsteam and vapors, which provision enables very moist matrices to beftreated in my shaper. r

; By thu perfecting the condition of the matrix and backing at one operation I obtain the proper depth for the plate where blank or white space is required, and obviate a'gre'at deal of therouting and chiseling out of such portions which has. hitherto been necessary on plates after they were cast from-a. flat dried matrix'because of the impossibility of properly backing up the matrix prior to drying with the means and methods-of drying it heretofore in use, and

' because the backing will break away from a flat dried matrix when the latter isicurved by inserting-it in a casting box.

Another great practical advantage of my matrix shaping and drying apparatus is its 7 simplicity, which enables the matrix to be placed therein, and shaped and dried very rapidly; the drying-being greatly facilitated by the channels in the form and the perfo-v rations in the sheet through which the evaporated steam or moisture readily escapes, andwhich channelsand perforations insure the desired uniform bone-dry hardness of the curved surfaces ofthe' matrix. NVith my apparatus a matrix can be rapidly and thoroughly dried outfin a very few moments and be ready for immediate use when'removed therefrom; and my apparatus not only performs the function of shaping the matrix but can also perform the functions of a matrix drying machine and matrix scorcher.

Claimsv1. Apparatus for shaping tereotype matrices comprising a curved form having a multiple of small channels in thesurface against which the matrix is placed for the escape of steam or vapor exuded from the 7 matrix, and means for bending a matrix around said form.

2. Apparatus for shaping and drying matrices forcasting stereotype plates, comprising a curved form having a multiple of small channels in the surface against which the matrix is placed for the escape of steam or vapor exuded from the matrix, means for bending a matrix around said form, and means for heating the form.

3. Apparatus for shaping matrices for casting stereotype plates, comprising a curved form having a multiple of small channels in the surface against which the matrix is placed for the escape of steam or vapor exuded from the matrix, a flexible sheet adapted to flex a matrix around said form, and means for holding the sheet in wrapped position to retain the bent matrix in place.

4; In apparatus for shaping and drying stereotype matrices, the combination of a tubular cylindric form having a multiple of parallel channels in the surface against which the matrix is placed; a flexible metallic sheet adapted to curve a matrix around the form, means for fastening the sheet to the form, andmeans for heating the form when a matrix is wrapped between the sheet and the channeled surface of the form.

5. Apparatus for shaping stereotype matrices comprising a stationary cylindric form having a multiple of small channels in the surface against which the matrix is placed, and a flexible metallic sheet having one end connected with the form and adapted to be wrapped around such form to curve a matrix inserted between it and the channeled surface of said form..

6. Apparatus for' shaping and drying matrices for casting stereotype plates; comprising a stationary curved form having exterior parallel channels, a flexible sheet having one end connected with the form and adapted to be wrapped around it to bend a matrix inserted between the sheet and form, means for heating the form, and mean for holding the sheet in wrapped position to retain the bent matrix in place. 7

7. In apparatus for shaping stereotype matrices, the combination of a tubular cy lindric form, a flexible metallic sheet adapt ed to be wrapped around the form, means for fastening the sheet to the form, said means forming a matrix stop adjacent the attached portion of the sheet, and means for detachably fastening the free end of the sheet to the matrix stop when a matrix is wrapped between the sheet and form.

said form.

' uded from the matrix, and a flexible perforated sheet for bending a matrix around 9. Apparatus for shaping matrices. for casting stereotype plates, comprising a curved form having channels in the surface against which the matrix is placed for the escape of steam or vapor exuded from the matrix, a flexible perforated sheet adapted to" flex a matrix around said form, and

[means for holding the sheet in wrapped position to retain the'bent'matrix in place.

10. In combination a hollowcylindric tudinally thereof, a flexible sheet attached form, a Stand supporting this form' on end, a flexible sheet attached to and adapt-ed to be bent around the form to bend a matrix aroundit, and means for heatingthe form.

11. In combination a tubular cylindric form externally channeled, a stand supporting said form in a vertical position, a bar attached to the form and extending longito the said bar and adapted to be closed around the form to bend and hold a matrix thereagainst, and means for fastening the free end of the sheet when around the form.

12. In combination a cylindric tubular form, provided with parallel longitudinal channels on itsexterior, a flexible metallic sheet attached to the outer side of the form and adapted to be bent around the form to shape the matrix thereagainst, means for fastening the free end of the sheet when around the form, a stand supporting the form, and means for internally heating the form.

13. In combination a tubular cylindricr form exteriorly channeled, a stand su port'- ing this form vertically on end, a flexible sheet attached to and adapted to be curved around the form to bend the matrix thereagainst and means for heating the form.

14. In combination a tubular cylindric form externally channeled, a stand supporting said form in a vertical position, a bar attached to the form and extending longitudinally thereof, a flexible sheet attached to the said bar and adapted to be curved around the form. to bring the matrix thereagainst, means for fastening'the free end of the sheet when around the form, and means for heating the form internally.-

15. In combinationa curved tubular form,

provided with parallel-longitudinal chan-" nels on its exterior, a flexible perforated metallic sheet attached to the outer side of Lanai the form to shape the matrix thereagainst,

means for fastening the free'endiof the'p erforated sheet whenv wrapped around the form, means supporting the form; and means for internally heatin the form.

16. In combination a cy indric tubular form provided with parallel longitudinal channels in its exterior; a'bar attached to the outer side of the form and extending longitudinally thereof, a flexible metallic sheet attached to the said bar andxadapted to be bent around the form to shape the matrix therea ainst, means for fastening the free end 0% the blanket when around the form, a stand supporting the form'in vertical position, and means for internally heat ing the form.

17. Apparatus for shaping stereotype matrices comprising a curved form against which the matrix is placed, and a flexible resilient metallic sheet'connected with the form and adapted to be bent around such form to curve a matrix inserted betweenit and the channeled surface of said form and means to arrest thesheet when released.

18. Apparatus for shaping and drying matrices for casting stereotype plates, comprising a stationary curved form, a flexible resilient metallic sheethaving one end connected with the form and-adapted tobe wrapped around it to curve around the form, and sheet supporting and arresting devices connected with the form.

19. Apparatus for shaping and drying matrices for casting stereotype plates; comprising a'stationary'form, a flexible resilient metal sheet having one end connected with the form and adapted to be wrapped around it to bend a matrix inserted between the sheet and form, means for holding the sheet,

in wrapped positionto retain the bent matrix in place, and means for supporting the sheet and limiting its separation from'the form when released. r

20. In apparatus for shapingv stereotype 7 matrices, the combination of aytubular cylindric form, .a' flexible vresilient metallic sheet adapted to be wrapped around the form, means for fastening the sheet to the form, said, means forming a matrix stop adjacent the attached portion of the sheet,

means for detachably fastening the free end of the sheet to the matrix stop when a ma.- trix is wrapped between the sheet andform,

and meansv for supporting the sheet and I limiting its separation from the form when released.

In testimony, that I'claim the foregoing as my own, I aflix my sigInIat-ure. V V LOUIS BECHMAN

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