US1277561A - Water-cooled display-type matrix-holder for monotype casting-machines. - Google Patents

Description

E. W. FABRY.

WATER COOLED DlSPLAY TYPE MATRIX HOLDER FOR MONOTYPE CASTING MACHINES.

APPLICATION FILED MAY 29 19l6.

1 27 156 1 Patented Sept. 3, 191.8.

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Specification of Letters Patent.

Patented Sept. 3, 191%.,

Application filed. May 29, 1916. Serial No. 100,573.

To all whom it may concern:

I Be it known that I, EMIL W. FABRY, a citizen of the United States of America, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Wa-tenCooled Display-Type Matrix-Holders for Monotype Casting-Machines, of which the following is a specification.

My invention relates to a display type ma trix holder for monotype casting machines in which, by means of a centering pin, the matrix is clamped against the mold opening while the pump fills the mold with molten metal to form the type.

The present matrix holders for display type in monotype casting machines, after several type have been cast, become hotter than the mold itself which forms the sides or bodyof the type, as provision has heretofore been made for a water cooling sys tem for keeping down the temperature of the mold, but no provision has been made for cooling the display type matrix holder and as a result I have found that the speed of the casting machine is governed by the time required for the face of the type to cool. As the matrix base back of the holder rapidly becomes highly heated it will be obvious that the slow cooling of the type face will necessitate a. very slow operation of the machine, because if the type face is ejected when too hot it will bulge out in the middle or break open.

The object of my invention is to greatly increase the output of monotype casting machines employed in the manufacture of display type and this I accomplish by providing a display type matrix holder having a water course or duct in the matrix base or like part against which the display type matrix rests when clamped in the holder. Preferably this water course is caused to pass around the centering pin cone hole as by this arrangement it will more effectively and uniformly cool the whole matrix.

In adapting my invention to the present mo'notype display type matrix holders, the water inlet and return courses are preferably drilled through the base plate and then by connecting drill holes plugged at their open ends, the water is caused to flow on all sides around the cone hole and pass off, a regulating valve being provided to restrict the flow of water and prevent the matrix base becoming sufficiently chilled to cause the matrix to frost the type face. The water connections will not interfere with the normal use of the display type matrix holder as the latter is not shifted laterally in service but is merely raised and lowered relatively to the mold.

illustrative of my invention, but without intending to limit myself to the details of construction shown, reference is had to the accompanying drawings, in which:

Figure 1 is a bottom plan view of a display type'matrix holder for monotype casting machines with the water course indicated in dotted lines.

Fig. 2 is a partial perspective view showing a display type matrix mounted in the holder.

Fig. 3 is a detail sectional View on, the line 3-3 of Fig. 1.

Similar reference numerals refer to similar parts throughout the drawings.

I have illustrated my invention as applied to a display type matrix holder of well known construction in mono-type casting machines comprising a metallic base plate 1 having near its center a shoulder forming the matrix base 2. Matrix clamps 3 are suitably mounted and controlled by mechanism (not shown) this is operable by the lever at. This mechanism is disposed between the base plate and a top plate 5 which is connected by screws to the base plate. In Fig. 2 an illustrative display type matrix 6 is shown held by the clamps 3 against the matrix base 2 in position to be mounted over the mold (not shown). I drill two water circulation holes 7 and 8 from near the handle end of the base plate 1, the holes being directed diagonally toward the plug 9 in which is formed the centering cone hole for the matrix holder. Through the back of the matrix holder I drill a diagonal hole 10 into ths matrix base 2 so as to intersect near its outer end the hole 7 and to intersect also at its inner end a transverse circulation passage 11 formed by a hole drilled transversely crosswise of the base 2 near its face which engages the matrix. The open end of this passage is closed by a plug 11. This hole 11 at its left hand end, Fig. 1, merges into a hole 12 drilled diagonally through the matrix base 2 and having its open end closed by a plug 13. This hole 12 at its inner end intersects a hole let drilled diagonally from the other side through the matrix base 2 and which is closed at its open end by a plug 15.

These several drill holes pass substantially angularly about and equi-distantly from the centering cone hole plug 9. A second hole 16 is drilled diagonally through the back face of the matrix holder so as to pass over the drill hole 11 and connect with the plugged drill hole 14. The outer ends of these drill holes 10 and 16, which open out through the back of the matrix base are kept separate and are closed by means of a plate 17 welded or otherwise attached to the back of the holder, or, if desired, the outer ends of these holes may be plugged. A water inlet pipe 18 connects with the drill hole 8 and a water outlet pipe 19 connects with the drill hole 7 and I provide a valve 20 to control the flow of the circulating water through the water course in the matrix base. The waterhaving been turned on to the desired extent will circulate through the matrix base passing on all. sides of the centering plug 9 and will chill the matrix base so that it will lgeep the display type matrix mounted thereon sufliciently cool to permit the casting op eration to be carried on as rapidly as thecooling of the type bodies will permit.

With my invention I find that by regulating the flow of water through the water course in the matrix base, I can keep the dislay type matrix itself as cool as the mold and therefore the speed of operation of the machine can be almost doubled as compared with present practice without in the least affecting the excellent quality of the display type produced.

It will of course be understood that the water course may be otherwise arranged, but that described can be readily provided in the present type of display type matrix holders with but little expense. 7

My present invention is concerned only with the improvement of display type matrix holders and not with composition matrix cases.

lVithout intending to limit myself to the details of construction shown, what I claim as new and desire to secure by Letters Patent, is

In a display type matrix holder for monotype casting machines, a base block having a central enlargement forming a matrix base, a cone hole centering plug mounted in said base, there being water inlet and out-- let passages leading from the margin of the block to the matrix base, there being drill. holes leading from the back of the block at different angles and intersecting each one of said first mentioned passages, and there being transverse drill holes passing at intersecting angles through the-matrix base and near the matrix supporting surface thereof, said transverse drill holes forming a circuit that connects with the ends of said inlet and outlet passages to form a closed'circuit, and means to close the outer ends of said holes drilled through the block, substantially as described.

In testimony whereof I aflix my signature.

EMIL W. FABRY.

Witness NQMIE WE s Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G.

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