US792973A - Linotype-machine. - Google Patents

Description

PATENTED JUNE 20, 1905.

P. T. DODGE.

LINOTYPE MACHINE.

APPLICATION FILED JAN. 25, 1905.

a HBETMSHEET 1.

PATBNTBD JUNE 20, 1905.

P. T. DODGE.

LINOTYPE MACHINE.

APPLIOATION FILED JAN. 25. 1905 3 SHEETS-SHEET 2.

Z wuc/wtoz UNITED STATES Patented June 20, 1.905.

PATENT OFFICE.

PHILIP T. DODGE, OF BROOKLYN, NEW YORK, ASSIGNOR TO MERGEN- THALER LINOTYPE COMPANY, A CORPORATION OF NEW YORK.

LlNOTYPE-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 792,973, dated June 20, 1905.

Application filed January 25. 1905. Serial No. 242,588.

To all whom, it may concern."

Be it known that I, PHILIP T. -DODGE, of Brooklyn, county of Kings, and State of New York,have invented a new and useful Improvement in Linotype-Machines, of which the following is a specification.

case when the machine is' operated at high speed and the slug ejected before there has been sufficient time for it to cool and contract or when the slug is provided with transverse ribs, so that its longitudinal contraction causes these ribs to bind strongly in the mold.

The aim of my invention is to overcome this difliculty by slightly opening the mold automatically to relieve the slug from pressure,

so that it may be more readily ejected.

My invention is applicable in all machines in which the slotted mold retains its form and demands the ejection of the slug edgewise. This class of molds is to be distinguished from the molds in which the parts are widely separated after each casting action to permit the delivery of the type or slug.

1 have shown my invention in the form more particularly adapted for application to the well -known Mergenthaler linotype-machine of the general organization represented in Letters Patent of the United States No. 557,000.

The drawings are limited to those parts immediately associated with my improvement. All other parts may be of the usual or of any other suitable construction.

Figure 1 is a plan View showing the moldcarrying wheel, mold, ejector, and trimmingknives, the mold being shown'in the ejecting position and in section on the line 1 l of Fig.

2 at a point above the slot or casting-chamber. Fig. 2 is a front view of the parts shown in the preceding figure. Fig. 3 is a vertical section through the mold and adjacent parts .in the casting position, the section being taken on the line 3 3 of Fig. 4:. Fig. 4 is a vertical section on the line 4 4: of Figs. 1 and 2. Fig. 5 is a perspective view of one of the wedges for opening the mold. Fig. 6 is an elevation of the mold having my invention embodied therein in modified form.

Referring to the drawings, A represents the vertical intermittingly-rotated mold-carrying wheel or disk; B, the mold secured therein; O, the mouth of the melting-pot, serving to close the back of the mold when in the casting position and to deliver molten metal thereto.

D represents the composed line of matrices, serving to temporarily close the face of the mold and to form the letters or characters on the edge of the slug east therein.

E is the first elevator, so called, in which the line of matrices D and spacers F is suspended and presented first to the mold and thereafter to the distributing mechanism.

G is a horizontally-reciprocating ejectorblade arranged to be projected through the mold after the latter has been turned from the casting position for the purpose of ejecting the slug or linotype I at the front.

H is a horizontally-reciprocating frame serving as a guide for the ejector-blade and also as a support for the axis of the mold-wheel, permitting the wheel to be moved forward and backward.

J and J are two parallel knives located on the frame forward of the ejector for the purpose of trimming the side faces of the slug or linotype as it is expelled from the mold.

The foregoing parts may all be constructed and arranged to operate in the ordinary manner with the exception hereinafter noted.

The composed line of matrices and spacers after being delivered to the elevator E is lowered thereby to a position in front of the mold, as shown in Fig. 3. The mold-wheel is moved forward until the face of the mold is closed tightly against the matrices, and at the same time the mouth of the pot is moved forsition at the top to the vertical position, as

shown in Figs. 1 2, and 4:, with the contained slug or linotype in a vertical position opposite the ejector-blade. mold are again moved forward until the front face of the mold stands close to the knives J J, after which the ejector-blade advances, ex-

pelling the slug from the mold and driving it between the knives into the galley at the front, all of these actions being the same as in the ordinary machine.

mold consists, as shown in United'States Letters Patent to Rogers, No. 620,804, of a lower or body portion 6, screwed firmly and permanently to the wheel, an overlying cap portion b, and intermediate liners or spacing-pieces and 6 which determine the length and height of theslot or mold proper, 6, and of the slug or linotype produced therein. Heretofore this mold-cap has been fastened down firmly in place and was not moved except when released by the operator for the purpose of substituting liners of different length or thickness tochange the dimensions of the cell and of the slugs produced. Instead of fixingthis cap rigidly in place Ihold it normally down in its operative position by means of springs M, seated on its outer ends and confined by nuts m, mounted on theupper ends of screw-rods on, which are extended down through the cap and seated firmly in the body of the mold. These springs are of such strength thatthe cap is held down with pressure suflicient to keep it and the underlying liners in operative position. If desired, additional locking devices may be provided for the liners to prevent them from slipping out of position. In each end of the mold-body, beneath the cap and liners -or directly beneath thecap, if preferred, which latter arrangement is shown in Fig. 6, i mount a transverse wedge 71 of slight taper and with their thicker ends at the front, so that when pushed rearward from their normal position, as

shown in Fig. 4:, they will serve to slightly raisethe mold-cap, and thereby relieve the con- .1

tainedslug from press u re and friction while being ejected. These wedges may be actuated in 1 any suitable manner; but I recommend as the most simple means two fixed studsor pins T, I mounted on one of the trimming-knives or on L an adjacent fixed portion of the frame in position to act upon the forward ends of the wedges and drive them rearward as the mold I is carried forward toward the knives prior to l The mold-wheel and the ejection of the slug, as before referred to. This action of the wedges is plainly shown in Figs. 1 and 4. The rear ends of the *wedges, which are preferably enlarged to prevent their accidental escape, are located in such position that when the mold is turned in its casting position the mouth of the advancingpot will act on the rear ends of the wedges and drive them forward, thus permitting the cap to assume its original and operative position. The rear ends of the wedges will stand flush with the rear face of the mold, so that they will not interfere with the trimming of the base of the slug by the usual stationary knife employed for the purpose. The elevation of the cap required is exceedingly slight. Under ordinary circumstances a rise of a thousandth of an inch. will be quite sufficient.

It will be observed that the mold as herein shown is self-containedthat is to say, its

1 parts are so constructed and united that they I will now describe my improvement. The

are not dependent upon the mold-disk-or'other external partsto keep them in operative relation. The mold as a whole maybe applied and removed at will without fitting-or adj usting its parts or changing their relations to one another.

Theessenceof the invention lies in combining with a mold the parts of which remain always in approximately operative position means for separating the parts or relieving them from confinement to an extent just sufficient to relieve the friction on the contained slug.

It is obvious that the wedges may be made in various forms, applied in various positions,

and operated by various devices without changing essentially their mode-of action, and it is also obvious that springs of any other form may be employed to hold the .cap and that the wedges may be replaced by anyother devices which will serve as their mechanical equivalents.

As before stated, the wedges maybe mount ed directly beneath the cap 5 of the mold, as shown in Fig. 6, instead of under the liners, as illustrated in the other figures. The function and mode of operation of the wedges would be the same in both cases, except that in the construction of Fig. 6 the operation of the wedges to open themold will lift the cap only, while their operation when beneath the liners will lift both the cap and the liners.

I am aware that'a mold having itsopposing members provided with cores or projections to form cavities in the slug has been provided with springs tending to open the mold and with external mechanisms for effecting its closure, as shown in Patent N 0. 637,113, the mold being opened in each case a distance equal to the thickness of the slug for theipurpose of releasing the latter. it will be observed in my structure the springs tend to close the mold and that the wedges serve :to positively open the same to an extent just sufficient to relieve the pressure and friction on the slug.

Having described my invention, What I claim is 1. A linotype-mold consisting of a body portion, a cap portion, connections permitting the cap a lifting motion only in relation to the body, spring connections tending to hold the parts in operative relation, and cap-lifting devices seated in and forming a permanent portion of the mold.

2. In a linotype-machine, a slotted self-contained mold, comprising the body and cap, springs tending to hold said parts in operative relation, and intermediate movable Wedges to effect the lifting of the cap.

3. In a linotype-mold, the combination of the body portion, the removable liners, the

cap, spring connections tending to depress the cap, and transverse movable Wedges a.

4. In a linotype-machine, a mold comprising a body portion, a rising-and-falling top, and means for effecting the movements of the top, in combination with means for moving the mold between the casting and the ejecting points, for also moving the mold forward edgewise of the slug at the ejecting-point, and means actuated by such movement for operating the cap-adjusting devices while the mold is at the ejecting-point.

5. In a linotype-machine, the mold-carrying wheel, having a rotary movement and a movement in an axial direction, in combination with the slotted mold having a cap adapted to rise and fall, wedges to lift the cap, springs to depress the same, wedge-acting devices to effect the lifting of the cap when the mold is at the ejecting position, and the melting-pot arranged to move the wedges in the reverse direction for lowering the cap at the casting position.

6. In a linotype-machine and in combination with the mold provided with a rising-andfalling top, spring connections to depress'the top, and a Wedge mechanism arranged to lift the top when the mold is in the ejecting position.

7. In a linotype-machine, trimming-knives J, J, and the movable mold provided with a rising-and-falling cap and with springs and wedges for adjusting the cap, in combination with fixed devices T, to actuate the Wedges.

In testimony whereof I'hereunto set my hand, this 24th day of January, 1905, in the presence of two attesting witnesses.

PHILIP T. DODGE.

WVitnesses:

JOHN F. GEORGE, M. A. DRIFFILL.

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