US1027551A - Linotype-mold. - Google Patents

Description

UNIT ATE Omen 1 ARTHUR w.w LE COMPOSITOR LII-NOTYPE-MOLD.

Specification of'Letters Patent. I Patented lllay 28, 1912,

Application filed April 23, 1909. Serial 110,491,831.

To all whom it may concern Be it known that I, ARTHUR W. Lu BOEUF, a citizen of the United States, residing at VVoonsooket, in the county of Providence and State of Rhode Island, have invented a certain new and useful Improvement in Linotype-Molds, of which the following is a full, clear, and exact description. I In linotype machines, the molds move between the position in which the molten type metal is injected from a nozzle'into the type slot, and the position in which the linotype is ejected from said mold slot. It isthe usual practice to place a trimming knife in such position that as the mold moves from the former to the latter position, this knife will contact with the back face of the mold, spanning the slot, and will, therefore, trim the bottom of the linotype in saidslo-t.

The metal in the mold slot contracts a little as it cools, and therefore the lintoype can be moved rather easily/in said slot; and, in

fact,d0es freely move during this trimming operation if itiis not anchored in said slot. If "t does move, even a very little, thebottom of the linotype will not be trimmed in exact parallelism with the printing surface, and therefore the linotype will be higher in some places than in others, and will be imperfect. j

. This invention relates particularly to providing a mold withiefficient means for antyp ay be c with the printing surface thereof, and for choring the linotype 1n the slot while the mold is moving from the castingto the eject- 35 ing position, so that the bottom ofthelin z trimmed in perfect parallelism withdrawing said anchorage when 'the ejecting position has been reached, 1

\ The principal part of more movable pins which may be caused to projectslightlyinto the mold slot, while the metal is being ejected and while the mold is being moved from the casting to the ej ecting position, and for causing the withdrawal of sald pins whenthe ejectingposition is reached so that the linotype maybe' easily:

the invention consists in combining with the mold two or made. Fig. 2 is a sectional view on line 2-'2 of Fig. 1.

nonunyor WOONSOCKET, nnonn ISLAND, ASSIGNOB. ToE Ec'rmc a COMPANY, on new 0 n. Y., A CORPORATION on NEW JERSEY.

The mold A is essentially a block of metal having parallel a I type slot a front and rear faces, and

type to be cast. Usually this'block is built extending through it froln front to rear of the dimensions of the lino-' up of several pieces, as, for example, the .top

and bottom pieces a, a, the intermediate liners c c3, and the end bars a aflas shown in the drawing; but these details of construc-' tion' are immaterial tothe present invention.

The mold is removably clamped in a Suit-f able carrier, as with the constructionshown,

this frame as, for example, frame B, If, v v

the mold is to be moved in a straight path between the casting and ejecting positions,

may be suitably held upon and supported 3 by a movable rack bar 0, to which power may be applied to move it in straight guideways tionit is desirable to interpose between the ends of the mold frame andthe upturned ends ofthe rack bar the springs D, D. With this construction it is not necessary to carefully regulatetfhe extent of movement of the mechanism which moves this rack bar. The rack bar must be moved more or less beyond the position in which it would normallybring the mold to. the correct casting position; but a stop of any suitable construction, as, for example, the stop K, may

back and forth. 7 With this construc be arranged opposite each end of the mold frame in position to be engaged thereby when the mold has reached the desiredposi tion,'wheth'er the casting position or the ejection position. As the rack bar moves, a

little after the mold has reached either. of

these positions and has been stopped, one of the springs will be compressed and act thereafter to hold the mold form firmly againstsaid stop.

A plurality Off holes are made through the s top member a of the'mold. I Ineach of these 'holes averticfallymovable pin E is fitted.- ese Pins exten dinto a recess 1) in the rear face of the upper member of the mold'frame.

"Each 'pind'has an enlargement e in this recess and above" the top member of the mold. A spring F associated with each of these pins is compressed between this enlargement and an overhanging part of the mold frame, and therefore acts always to press the pin downward. In each of these enlargements a recess is out large enough to receive the longitudinally movable cam bar G which lies and is guided in its movements between the back of the recess 6 in the mold frame and said pin. 011 each pin is an overhanging finger e, and in the top surface of the bar G adjacent to each pin is a recess 9 which is joined to the top surface of the bar by a downwardly inclined surface 9.

In the use of the mold, the described parts operate in the following manner. When the mold is moving toward the right as shown in Fig. 1, it is moving toward the casting position. Just before it reaches ths position the projecting end of bar G comes against any suitable sort of a stop whereby, since the bar is stopped and the mold continues its movement, the bar will be moved rela tively to the mold so as to bring the recesses g beneath the overhanging fingers e of the pins. The springs F will push the pins downward as far as the enlargements thereon will permit them to go, and this causes the lower ends of the pins to project into the mold slot at sixteenth of an inch, more or less. The pins are in this position when molten metal is injected into the slot, and the linotype is cast. Then, when the mold is moved in the contrary direction, during which movement the bottom of the linotype may be trimmed, as stated, the pins remain embedded in the linotype and therefore completely anchor it against any movement relative to the mold. Just before the mold reaches the ejecting position, the other projecting end of the bar G strikes a stop, as, for example, the stop K, and thereby the bar G is compelled to stop while the mold goes on a short distance until it also is stopped. The relative movement of the bar G and the mold so produced causes the bar to move to the position shown in Fig. 1, and thereby the pins are lifted by the illclined surfaces and entirely withdrawn from the mold slot so as to permit the linotype to be easily pushed out of the same.

Having described my invention, I claim:

1. The combination of a linotype mold capable of moving from the casting to the ejecting position and vice versa, of a plurality of pins movable through the mold wall and adapted to be projected into the mold slot, a movable cam bar for controlling the simultaneous movement of all of said pins inward or outward as the case may be, and means which act automatically to move said cam bar in one direction when the mold is near one end of its path and to move said cam bar in the other direction when the mold is near the other end of its path.

2. The combination of a linotype mold capable of movement from the casting to the ejecting position and vice versa, of a plurality of pins movable through the mold wall and adapted to be projected into the mold slot, of a bar suitably supported adjacent to the mold and to said pins, and having cam surfaces for engagement with said pins, means for moving said bar first in one direction and then in the other, relative to said mold, and springs acting to hold the pins against the operative edge of said bar.

3. The combination of a linotype mold capable of movement from the casting to the ejecting position and vice versa, of a plurality of pins movable through the mold wall and adapted to be projected into the mold slot, of a bar suitably supported adj acent to the mold and to said pins, and having cam surfaces for engagement with said pins, said bar having projecting ends by which it may be pushed first in one direction and then in the other, and springs acting to hold said pins against the operative edge of said bar.

1. The combination ofa mold having a mold slot and a plurality of holes going through one side of the mold and connecting with said mold slot, a mold frame in which said mold is removably held, pins fitted in said holes having enlargements above the mold, springs compressed between said enlargements and an overhanging part of the mold frame, and a longitudinally movable bar having cam surfaces for engagement with overhanging fingers on said pins, said bars having their ends projected through and beyond the end members of the mold frame.

5. In a linotype mold, the combination of a mold, a mold frame in which the mold is removably held, a bar on which the mold frame is movably supported, and springs interposed between the ends of the mold frame and the ends of said bar, said bar having means to which power may be applied to move it, and stops interposed in the path of the mold frame.

In testimony whereof, hereunto affix my signature in the presence of two witnesses.

T. L. CLARK, J. B. ARMITAGE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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