US1313632A - Stereotyper s matrix and vertical mold for casting stereotype-plates - Google Patents

Description

, 1.1. B. HARRIS. SIEREOTYPERS MATRIX AND VERTICAL MOLD FOR CAS'HNG STEREOTYPE PLATES FROM IT. APPLiCATlON FILED 1AN.9. l9l3- RENEWED JAN. l4, I919- 1 3 1 3, 6 32 Patented Aug. 19, 1919.

/76./ ,4 6' E 2 l///////////////// J wages a azm per w Zlfmng.

HE COLUMBIA PLANOURAPH cm, WASHINGTQN. D. c.

UNITED STATES PATENT OFFICE.

JOHN JAMES BISHOP HARRIS, F BROADHEATH, ENGLAND, ASSIG-NOR, BY MESNE ASSIGNMENTS, TO WOOD NEWSPAPER MACHINERY CORPORATION, OF NEW YORK, N. Y., A. CORPORATION OF VIRGINIA. j

STEREOTYPERS MATRIX AND VERTICAL MOLD FOR. CASTING sirnnEoTYrn-rm'rns 1 FROM IT.)

Patel l dAug. 19, 1919. 1

Application filed January 9, 1913, SerialNo. 740,951. Renewed January 14, 1919. Serial No. 271,163.

- To all whom it may concern:

Be it known that LYJOHN JAMES BIsHoP HARRIS, a subjectof the King of the United Kingdom of Great Britain and Ireland, re-

siding at Linotype and Machinery Works, Broadheath, in the county of Chester, England, have invented new and useful Ime provements in Stereotypers Matrices and Vertical Molds for Casting Stereotype- Plates from Them, ofwhich the following is a specification.

In some vertical molds for casting curved stereotyped plates, so arranged that the molten metal is poured downward into them through their open tops, the top margin of the matrix is safeguarded from the metal by a metal guard attached to the matrix clamping members of which there is one on each side of the matrix supporting member of the mold, and which guard fits over the said margin and extends downward as far as the top bolster of the matrix, this bolster projecting into the mold beyond the said guard. Consequently, this guard leaves the bolster exposed to the impact of the falling stream of metal. is poured from a point over the median vertical line of the mold, it strikes the middle of the bolster, and lastly, the middle of the matrix. The impact of the metal upon the bolster and matrix makes both gradually creep down the matrix holding members, thereby (seeing that the bottom of the matrix is prevented by the bottom of the mold from creeping downward) forming a projection on the casting face of the matrix. This projection projects into the mold far enough to spoil all the stereotype plates subsequently cast while it is there.

The present invention consists in means for preventing the said creeping. These means are illustrated in the accompanying drawings in which Figure 1 is a sectional elevation of a chase, form, and flong illustrating the formation of the improvement in the matrix.

Fig. 2 is a sectional elevation through a vertical mold showing the matrix guarded from being made to creep; and, Fig. 3 is a similar view, enlarged, of a modification.

Referring more particularly to Fig. 1, the improved matrix 1 has three angled shoulders 2, 3, 4 between its casting face of the matrix is made. 3 j j Referring to Fig. 2, '11 is. th usual ld As the latter 5 and its top margin 'To properly produce these shoulders 2, 3, 4:, the corresponding end 7 of the chase is for-the major part,

higher than the top ofthe' form 8, and between this higher partand the form, there is asink 9 in which the top bolster 10 in whichthe stereotype platesare cast "between 12, the convex member and 13, the concave member. It is the latter that has the matrix carrying members above mentioned thereby constituting it the matrix supporting member. 1 1 is a recess formed in the upper portion of'the-concave face of the member 13. This recess extends from one side to the other of-the said member therefore, nearly flush with .the bolster.

Obviously, when its bottom edge is vertically flush with the moldward projection of the bolster 10, the main body of the falling metal will be shot off in the direction of the mold member 12, and thereby prevented from striking the bolster. The impact of the metal upon the bolster 10 and the matrix below it, cannot cause the creeping above mentioned, for the reason that the shoulder 15 keeps the bolster 10 in its normal position and thereby prevents the matrix below it being made to project into the mold 11.

The invention includes the combination of a guard 160, Fig. 3, a concave member 130 and convex member 120, as used here tofore, 210., not having the recess 14 and consequent shoulder 15; and a matrix of any contour in respect of. its top bolster, margin, or shoulders.

Although I have illustrated and described only two forms of the invention, 1 am aware of the fact that many other modifications can be made therein without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details of construction to receive the entire top margin of the x herein shown and described, but what Ido claim 1s:'

1. As an article of manufacture, a vertical stereotype mold having a matrix'provided with a top bolster and a guard arranged in position in the mouth of themold to engage said bolster and direct the falling metal from the top side of said bolster as the metal'descends in the mold. V I

2. As an artlcle ofmanufacture, a stereotype mold having an open mouth at the topv falling metal away from the bolster, the wall .of .said mold having means for preventing the-bolster from descendingin the mold.

3. As an article of manufacture, a stereotype mold provided with a matrix therein having a bolster and a top margin, the top of said mold being provided witha projection behind the bolster for preventing the bolster being forced clownalongthe mold .wall by the descent of metal upon itsouter facep:

i 4. As an article of manufacture, a stereotype mold having an inwardly projecting shoulder in position to engage under the top shoulder of the matrix for reventin the descent of the matrix in the mold.

' '5. As an article of manufacture, a curved stereotype mold having the convex member thereof provided with a square shoulder projecting toward thematrix: in position to engage the bolster thereof and hold the same rigidly.

6. The combination with a stereotype mold having a recess in the pouring mouth thereof and provided with a square shoulder projecting inwardly at the bottom of said recess, of a matrix therefor provided with an inset top margin for fitting in said recess and with a bolster extending inwardly from the bottom of said margin, then downwardly and outwardly at the bottom to form a top shoulder in position to rest on said shoulder.

' 7 The combination with a stereotype mold having a mold cavity at the bottom, a recess in the pouring mouth depressed beyond the surface ofsaidcavity, and a sharp shoulder at the bottoin of said; recess, of a matrix thereforvhaving three angled shoulders, the middle one of Which registers with the shoulder on the mold and provided with a top margin off-set fromthe main surface to the matrix to fit in said recess.

8. As an article of manufacture, a stereotype matrix having a top margin oifset into a difierent plane from that of the body of the matrix, a bolster connected to this top margin by a pair of reverse shoulders and connected with the casting face by a third shoulder.

, In witness whereof I have hereunto set my hand in the presence of two witnesses.

JOHN JAMES BISHOP HARRIS.

.Witnesses:

i HAROLD SoU'rHwoRTH,

J AMES HENRY PEARSON.

Copies of this pat ent may be obtained tornve cents each, by addressing the Commissioner of Patents, v I

. Washington, 20.0. I 1

Images