US449872A - Philip t - Google Patents

Description

(No Model.)

P. T. DODGE. LINOTYPE MACHINE.

No. 449,872. Patented Apr. 7, 1891.

QWi-tuaooeo 1' E NORRIS PETERS c0, wum-umm. wasum UNITED STATES PATENT OFFICE.

PI-IILIP T. DODGE, OF VASHINGTON, DISTRICT OF COLUMBIA.

LlNOTYPE-MACHINE.-

SPECIFICATION forming part of Letters Patent No; 449,872, dated April '7, 1891.

Application filed September 22, 1890- Serial No. 365,826- (No model.

To all whom it may concern.-

' Be it known that I, PHILIP T. DODGE, of Washington, in the District of Columbia, have invented certain Improvements in Linotype- Machines, of which the following is a specification.

This invention relates more particularly to what are now known in the art as linotype machines, in which a series of matrices representing individual characters and suitable spaces are arranged temporarily across the open front of a mold in orderto produce the type characters in relief on the bar or linotype cast in the mold as shown, for example, in Letters Patent of Ottmar Mergenthaler, dated September 16, 1890, No. 436,532.

As the machines are now constructed they cast at each operation a single bar or linotype. In practice it is frequently desirable, particularly in offices where the linotypes are used directly upon the press, to cast them in duplicate, and it is the aim of my invention to adapt the machine to produce at one operation bars in duplicate or triplicate. To this end I provide each of the matrices with two or more characters or matrices proper and provide the mold with a corresponding number of mold-cells, so that when a matrix is presented to the mold its several characters will stand in front of the respective moldcells, thus allowing two or more linotypesto be cast at one time in the distinct mold-cells against the one series of matrices.

In the drawings I have represented my improvements as applicable to'the Mergenthaler machines. As the only changesrequired are in the matrices, the mold, and the ejector, I have limited my drawings thereto. In all other respects the machine may be constructed and operated in precisely the same manner as that represented in said patent.

In the accompanying drawings, Figure 1 represents a perspective view of my matrix with the duplicate characters therein. Fig. 2 is a vertical section through the mold-wheel with the matrices presented thereto. Fig. 3 is a horizontal section through one edge of the mold-wheel, showing the duplicate ejector in the act of removing the linotypes. Fig. 4 is a face view of the mold-wheel. Fig. 5 is a cross-section of the mouth of the melting-pot and the adjacent mold, showing the means for ing of .a fiat metal sheet shouldered at its edges and provided in the top with distributing-teeth 1 This matrix is identical in all respects with those shown in the patent referred to except that instead of being provided with the single character or matrix y in one edge it is provided in the same edge with a duplicate character or matrix 3 This matrix with the ordinary spaces will be assembled side by side in line and presented to er the mold as in the former machine.

0 represents the mold in the form of a disk or wheel. Instead of having a single mold cell or slot 0 therethrough, as in the former machine, it is now provided with a duplicate cell 0'. These two cells or molds lie parallel with each other and in such position that when the matrices are presented to the mold, as shown in Fig. 2, the upper characters will align with one cell and the lower characters align with the other, as plainly represented in Fig. 2.

V represents the melting-pot, in which a constant supply of molten metal is maintained. The pot is provided with a pump or forcing mechanism t" and with a deliverymouth c, which is adapted to close against the rear side of the mold-wheel, so as to cover and close both cells. There is a deliveryopening from the pot into each of the two cells independently. WVhen, therefore, the pump is actuated, the molten metal will be delivered into two cells or molds and two bars of linotypes formed simultaneously,one having its type characters formed by the upper and the other having them formed by the lower characters of the matrices.

structed and operated in the same manner as that in the Mergenthaler machine, except that its forward end instead of being in the form of a single blade is divided into two blades adapted to enter the respective moldcells in order to remove the two linotypes' simultaneously, as shown in Fig. 3.

While I have described my improvement as applied to a machine of the Hergenthaler type, it is to be distinctly understood that it includes any construction in which the matrices are each provided with two or more characters adapted to co-operate with two or more molds, or with equivalent means by which the two characters are made available at one time to produce distinct characters or impressions. It will be obvious to the skilled mechanic that the form of the matrices and the construction and arrangement of the composing, clamping, casting, and distributing mechanisms are all foreign to the substance of my invention, except as to the particulars above struction and operation at will, provided only the matrices with duplicate characters therescribed.

While my invention is intended more particularly for use with matrices, it is to be understood that it may also be applied with types or dies having the letters or characters in relief thereon, as shown in Fig. 6. Dies of this character may be set up in line and used to impress at one operation two matrix lines in papier-mach or equivalent material.

In some cases it may be desired to print the I same matter in type of different styles or of different sizes, or, as it is technically termed, with different faces. In such cases the two characters on the one matrix or type-body may be different from each other in form or size, so that, although the resulting linotypes will bear the same letters, or, in other words, be adapted to print the same matter, they will differ in their style or appearance.

I have used herein the generic term type as including both the matrices with intaglio characters and the dies with cameo characters, and the claims are to be read with this understanding. I

As it will in some cases be desirable to use the machine adapted for casting two bars at a time to cast a single bar at a time, I propose to I delivery-mouths, so as to completely fill and close the same. When this piece is applied, the delivery of metal to one of the mold-cells will be prevented, although its delivery to the other cell for the production of a single bar will continue as before. It is obvious that the same result could be obtained by filling one of the mold-cells with a metal plate; but this is not considered advisable under ordinary circumstances, as there would be danger of leakage from the unused mouth of the pot.

Having thus described my invention, what I claim is 1. A type having 011 one face two duplicate characters disassociated or separated from each other that they may be independently 1 used. recited, and that they may be varied in con- 2. A type-matrix having in one edge two or more impressions or matrices proper of the same letter or character. on are adapted to answer the purposes de- 3. In combination with a line of matrices each having two characters, a casting mechanism having two cells or molds to align with the respective characters, substantially as described.

i. A series of matrices each having two characters or matrices on one edge, in combination with a mold having twocel'ls to align with the respective characters, and means for supplying the two cells with molten metal.

5; The mold having the two cells, in combination with the matrices having each two characters, and the melting-pot provided with the two delivery-mouths.

6. In a linotype-machine, and in combination with two mold-cells, a mechanism provided with two mouths for delivering metal to said cells, and means for closing one of said mouths at will, whereby the casting of a single bar at a time is secured.

In testimony whereof I hereunto set my hand in the presence of two attesting witnesses.

PHILIP T. DODGE.

Witnesses:

O. S. DRURY,

W. MORTIMER.

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