US542224A - Matrix-making and printing-bar-casting machine - Google Patents

Description

H. LEB ai B'. LEB-RUN;

2 Sheets-Sheet 1.

MATRIXMA'KINMND PRINTING BAR CASTINGMAGHINE.

Patented Jly y2, 1895.

(No Model.) 2 Sheetsesheet 2'. 1

A H. LEB 'su LEBRUN. MATRIX MAKING AND BEINTINGHBAR GASTINGMAGHIfNE'.

UNITED STATES PATENT OEEICE.

HOMER LEE, OF NEW YORK, N. Y., AND EDMOND LEBRUN, OF-NEWARK, NEW JERSEY, ASSIGNORS TO THE ELECTRIC TYPOGRAPHIC COMPANY,

OF WEST VIRGINIA.

MATRIX-MAKING AND PRINTING-BAR-CASTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 542,224, dated July 2, 1895.

Original application filed October 31, 1888, Serial No. 289,676. Dividediand this application filed October 11,1890. Renewed February 23,1895. Serial No.539A95. (No model.)

- .T0 all whom it may concern:

Be it known thatwe, HOMER LEE, residing in the city, county, and State of. New York, and EDMOND LEBRUN, sometimes known as EDMUND LEBRUN, residing at Newark, in the county of Essex and State of New Jersey, citizens of the United States, have invented certain new and useful Improvements in Matrix- Makingand Printing-Bar-Casting Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to mechanism for` casting printing-bars from matrices produced either in the machine in which the casting operation is performed or in an independent machine, from which the matrices are transferred to the casting mechanism.

The object of the invention is to improve the construction of this class of casting mechanism; and to this end it consists in various constructions and combinations of parts, all

'of which will be particularly described in the following specification and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional side elevation of a portion of a matrix-making and type-casting machine,

showing such parts as are necessary for un-l derstanding the present invention. Fig. 2 is a partial sideelevation of the same. Fig. 3 is an end elevation,looking to the left in Fig. 2. Figs. 4 and 5 are detail sections on an enlarged scale, showing the parts in two posi# tions.

Referring to said drawings, 1 is a partiallycylindrical holder, provided on itsl flat face with a groove 2, which receives the matrix,

the holder being mounted to oscillate in uprights 8. The holder projects outside one of the uprights and is provided at its end with a slotted projection 4, connected by a link 5 and wrist-pin 6 with a bell-crank lever 7, pivoted to the frame of the machine. The lower end of the bell-crank lever carries a pin 8, entering aslot in the end of an arm 9,which is secured to a rod 10, carryingat its lower end a hollow cam-block 11, by which the rod is vertically reciprocated by a cam 12, mounted upon the shaft 13.

The mold-cavity in which the printing-bar is cast is an oblong opening 14, cuttrans- Verselyin a mold-plate 15 and provided, preferably, with projecting lips 16 on each side of the mold-cavity. The mold-plate 15 has across its top and bottom bars 17,(the ends ofwhich enter and move in L-shaped guide slots 18, formed in the two uprights 3, and by which the mold-plate is guided in vertical and short horizontal movements. The moldplate is suspended and its motion directed in the slots 18 by a bar 19, attached at one end by a hellend-socket joint to the top of the mold-plate and at the other end by a similar joint to a lever 20, pivoted in one of the uprights, the other end of the lever being connected to the upper end of the rod 10, previously referred to. The vertical portions of the slots 18 are of a length equal to the vertical throw of the cam 12, s0 that the reciprocation of the rod 10 will move the mold-plate beed two rock-shafts 22, each of which carries an arm 23, the shafts being rocked rearward by means of a spring 24, secured to crankarms 25 on the shafts, the arms 23 pressing against the mold-plate and tending to pushit backward. j

Behind the mold-plate is the casting-box, in which the type-metal for the printing-bars is melted and from which it is forced into the mold. The casting-box may be of any suitable construction, that shown having firechamber 26 in its lower part-,just above which is the melting-pot 27, through which pass chimneys 28 for the escape of the products of combustion. Another chimney 29 passes out and up along the front of the box for maintaining the temperature of the metal as it passes out of the casting-box. Inv the front inder 30, connecting by means of openings 3l near its base with the interior of the melting-pot 27 and by means of a passage-way 32 with a series of small circular openings 33, arranged near the top ot` the forward end of the box in a transverse line about equal in length to the printing-bar to be cast.

The pump-piston 34 is operated by a weighted piston-rod 35, pivotally connected to a lever 36, which in turn is connected by a rod 37 to a reciprocating arm 38, engaged by a notched cam 39, carried by the shaft 13. The lever 36 is pivoted to a support 40, moving with the casting-box, and the rod 37 is pivotally connected to the arm 38, thus permitting the lever to move independently ofthe arm. rlhe pump piston is pressed downward by the weight upon the piston-rod, and this movement is resisted by the pressure of the arm 38 against the cam 39. As the notch in the cam comes opposite the end of the arm once in each revolution the arm is permitted to move upward, allowing the pump-piston to be moved downward by the weight sufficiently to force the molten metal from the castingbox and through the openings 33. The castingbox maybe heated in any suitable manner, preferably by means of a jet 41, supplied through iiexible connections.

A horizontal reciprocation is given to the casting-box by means of a lever 42, pivoted in the frame of the machine and connected at its upper end to the casting-box by a slotted pivotal connection,the lower end of the lever being acted upon bya closed cam 43, mounted upon the shaft 13, the casting-box thus being reciprocated once at each revolution of the shaft.

As the mold-plate 15-rises it moves in contact with a block 44, carrying a knife 45, the edge of which is horizontal and against which the rear face of the mold-plate is pressed. The block 44 is' slotted horizontally, and a plunger 45 moves through said slot, being connected by a link 46 to a lever 47, operated from the main shaft of the machine 48 by means of a bowl 49, carried by a crank-arm on the shaft and engaging cam toes 50. These cam-toes 50 are carried by a block 51, slotted to reciprocate upon and be guided by the shaft and connected to the lower end `of the lever 47 by a rod 52. By this construction the bowl 49, engaging the cam-toes 50, reciprocates the plunger 45 once during each revolution of the main shaft, thus forcing the printing bar from the mold and into the trough 53, by which the printing-bars are received.

The operation of the casting mechanism will be readily understood from the drawings and a brief description.

It is assumed that a matrix has been placed in the holder and that the melting-pot contains a supply of molten type-metal, the parts being in the position shown in Figs. l to 4. By the operation of the machine the holder i is oscillated backward, and simultaneously the mold-plate is moved by its connections to the lower limit of `its vertical movement. At the same time the casting-box is moved forward, and, as the mold-plate reaches its lowest position, comesin contact with the incid-plate and moves it forward in the slots 13 against the spring-pressure of arms 23, the bars 17 enteringthe short horizontal portion of the slots 18 and holding the mold -plate firmly in position, and the pump is then operated to force the molten metal into the mold-cavity 14. All the parts are now in the position shown in Fig. 5 and remain in this position during the casting of the bar. When the mold-cavity is filled and the bar cast= the casting-box movesbackward and simultaneously as the pressure of the casting-box is released the springs 24, operating through arms 23, move the moldplate backward, to the limit of the guiding-slots, in which position its rear face,

is pressed against the block 44 and knife 45. The mold-plate now rises and the rear face of the printing-bar is trimmed by the knife, the mold-plate continuing its upward movement until it reaches the position shown in Fig. 4, when the plunger 45 is operated to push the printing-bar out of the mold and onto the incline. Meanwhile the holder carrying the matrix has been oscillated forward to the position shown in Fig. 4, and all the parts are now in position for the next matrix.

it will be understood that other forms of casting-box and matrix-holders may be used `with our reciprocating mold and that'our invention is not to be limited to the exact form 4 of mold and operating mechanism shown, this being but one of many that may readily be devised, and shown and described only as con- This application forms a division of our a-pplication, Serial No. 289,676, filed October 3l, 1888.

lVhat we claim is- 1. The combination of a matrix holder, and a mold reciprocating in straight lines in two directions, in one direction to and from contact with the matrix in theholder and in the other to and from a position for discharging the printing bar from the mold, substantially as described.

2. The combination of a castingbox, aplunger for ejecting the printing bar from the mold, a casting box moving to and from the mold anda mold reciprocating in a straight line from a position wherein the mold cavity is in communication with the casting box to a position wherein the mold cavity is in the path of the plunger, substantially as described.

3. The combination of a matrix holder, a mold reciprocating in straight lines in two directions, and a casting box moving to and from the mold, substantially as described.

4. The combination of a mold reciprocating in straight lines in two directions, and a matrix holder andcasting box located on opposite sides of the mold and moving to and from the same, substantially as described.

5. The combination of a reciprocating casting box, a matrix holder, and a mold reciproeating from a position for discharging the printing bar to a position in which the mold cavity is in communication with the casting box, and moved against the matrix holder by the casting box in the latter position, substantially as described.

6. The combination with a reciprocating casting box and matrix holder, of plunger 45, and mold 15 reciprocating in straight lines in two directions from the plunger to the casting box and matrix holder, substantially as described.

7. The combination with a casting boxand matrix holder, of the swinging mold l5 reciprocating vertically and horizontally in xed guide slots 18, substantially as described.

8. The combination with a mold having rectilinear movement to and from its position for taking a cast from a matrix, of a plunger Witnesses as to the signature of Homer Lee:

J. J. KENNEDY, C. J. SAWYER.

Witnesses as to the signature of Edmond Lebrun:

E. S. SIEBLE, J.'J. KENNEDY.

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