US351040A - Stereotype-casting machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. BROOKS.

STEREOTYPE CASTING MACHINE.

Patented 001;. 19, 1886. l E

(No Model.) 2 Sheets-Sheet 2.

J. BROOKS.

STEREOTYPE OASTING MACHINE. No. 351,040. Patented Oct. 19, 1886.

W54 iwmeob M N PETERS. Phammho m nu. Wihhlllga". D. C

UNITE STATES ATEN'r FFIQEO JOHN BROOKS, OF PLAINFIELD, NElV JERSEY.

STEREOTYPE-CASTING WlACHlNE.

SPECIPICATEON forming part of Letters Patent No. 351,040, dated October 19. 1886.

Serial No. 173,814. (No model.)

'tion of the same.

In preparing stereotype-plates for printing it is usual to cast the type-metal in a mold, the printing or type surface being produced by a paper matrix, and casting-boxes have been made, wherein the core block has been hinged to the casting-box and the parts adjusted and operated by hand assisted with ordinary mechanical lifting appliances.

The object of myinvention is to foriua cast ing-box that shall be easily and quickly opened and closed, and that shall move-parallel, or nearly so, when the parts are acted upon, and thereby separate the concave side of the stereo type-plate from the core-block.

My improved casting-machine is made with suitable framing for supporting the coreblock and with a movable casting-box. The coreblock is nearly vertical and stationary, and the casting-box is upon trunnions connected by standard-moving carriages having slideways upon the frame. The carriages are moved back and forth by links and crankpins to disks upon a shaft that is operated by a lever and pawls and a ratchet-wheel upon the shaft. The casting-box is provided with side bars to hold the paper matrix, and it is held by a catch and drawn forward inan almost perpendicular position into contact with the semi-cylindrical core-block, there being the necessary space for receiving the melted metal that is cast to form the stereotype'plate, and when said plate is to be removed the casting-box is forced back away from the core-block, carrying with it the stereotype, and it is then tipped into a horizontal position and supported by a rest, while the stereotype is being removed or the matrix secured in position.

In the drawings, Figure 1 is an elevation of my improved casting-machine in position for casting the stereotype-plate. Fig. 2 is a par tial elevation, the casting-box being horizontal and in section. Fig. 3 is a plan view of Fig. 4: is a the machine, as shown in Fig. 2.

cross-section at or x of the coreblock and casting-box, and Figs. 5 and 6 are an elevation and plan View of a device for cutting and truing the edge of the stereotype-plate. Fig. 7 is a section through the sliding cutter-plate at the top of the core-block; and Fig. 8 isa perspective view of the hub, rest, and catch, and Fig. 9 is a partial section of the end plate or gage and casting-box.

A and A are the side frames of the machine, and A is one end frame, and upon the upper edges of said side frames are the slideways I. The end frame,B, is preferably slightly inclined and bolted to the side frames, and the bracketframe 13 is preferably formed in one with the end frame, B, and upon said bracket-frame there are journal boxes 0 for the operatingshaft i. The core-block D is bolted to the end frame, 13, and it is formed as a long block of metal, semicircular in section, and having grooves in its circular face, and these grooves receive the cast metal and form the ribs upon the inner surface of'the cast stereotype-plate. There are disks h h upon the shaft i outside the journal-boxes O, and there are ratchetwheels Z Z keyed upon the shaft i, and a lever, it, having an eye, a, loose, upon the shaft 1', between the ratchet wheels, and there are pawlsm m upon said lever a to engage the teeth of the ratchets Z Z in opposite directions, as shown by dotted lines in Figs. 1 and 2, so that the shaft '5 can be turned by the lever 11/ in one direction by the pawl m. and ratchet Z, and in the other direction by the pawl m and ratchet 1. It is to be understood that when both the pawls m m are in contact with their respective ratchet-wheels the lever is connected and the shaft i will be rotated either way with the lever a; but if the space is limited the lever can be reciprocated if one pawl is thrown out of action. There are links it it connected by crank-pins to the disks h h and by pivots to the standards]? of the sliding carriages F, so that said links move thecarriages and casting-box E back and forth upon the slideways I. As the shaft 6 receives half-rotations, the stop-pins act to limit the movement in one direction. The casting-box E is preferably made with strengthening-ribs 4-, and is semicircular in section, larger than the core-block D, and upon the inner surface of the castingbox there are side bars, ac, undercut on thelr lower edges, and held to the casting-box by pins 1. There is an end gage or semi-cylindrical plate, 6, having a beveled edge in the lower part of the casting-box, and said plate is recessed as shown in Fig. 2, and it is adjustable and is provided with bolts at 2 that pass through holes in the casting-box, and se-- cure the same, and which holes allow such plate to be shifted and to be placed in the proper position,

In the upper end of the casting-box there is an end gage or semi-cylindrical recessed plate, 0, also having a beveled edge to which the lipped bars and handles 3 are connected, and the casting-box E is pjvotally mounted by its trunnions F in bearings upon the standards F of the carriages F, and the casting-box can be tipped up nearly perpendicular or placed horizontal, the handle 5 being provided for that purpose.

(1 is the paper matrix, its top and bottom ends being shown as under the edges of the end plates or gages, I) and 0, in Fig. 2 and its other two edges being shown under the edges of the side bars in Fig. 4, said plates and side bars holding the matrix to place and determining the size of the stereotype-plate, and against which its edges" are cast. where the gage or end plate 0 is not used I employ a sheet-metal plate that covers the upper edge of the paper matrix and is received under the edges of the side bars, a a.

Upon the sliding carriages F there are standards e, and a shaft, 0, passes from one standard to the other, and outside one standard is a handle, f, and upon said shaft, between thesition shown in Fig. 1 during the forward and backward movement. There is a bolt, 7, in the base of one standard 6, and said bolt is adjustable to form a rest for the handle f and to adjust the catch 9 in its relation to the slotted plate 6.

The operation of the parts is as follows: Starting with the position shown in Fig. the side. bars a and plate 0 being removed, the paper matrix is placed within the castingbOX E, its lower edge being placed underneath the edge of the'plate Z), the plate 0 and bars a a are then put in place and cover the other edges of the paper matrix. The attendant then grasps the handle 5 and lifts the casting-box into an almost perpendicular position,at which time the catch enters the slot in the plate 6 and catches, locking and holding the castingbox in its upright position. The attendant then grasps the lever n, Fig. 2, and swingingit outward and downward, the pawl m engaging In cases shaft i and disks h h in the direction of the ar row, Fig. 2, and by the links k k drawing the sliding carriages F and casting-box E into the position shown in Fig. 1, wherein the core-bloek D is within the casting-box, and the parts are tight and secure for casting. This position is also shown by the section, Fig. 4, the relative position of the casting-box to the core-block being accurately determined by the bar 0 and adjusting-screws 0, that form stops for the casting-box. The molten metal for forming the stereotype-plate is poured over the top of the core block D, upon top of which I prefer to secure a slanting guide-block, N, Fig. 5, i to direct the flowing metal. After casting the metal it ispreferablc to separate the surplus metal in the gate from the upper I end of the stereotype-plate and a cutting device for accomplishing this work I have shown in Figs. 5 and 6. If desired, the end plate or gage 0 might have two or more pouring-channels (shown in Fig. 9 by dotted lines at 0 Fig. 3) cut into its face, and it might come tight up against the core-block, in which case the metal filling the pouringchannels would only have to be broken off. After casting the plate, and when it is sufficiently 'cooled,the attendant grasps the handle n, Fig, 1, and raises it, the pawl m engaging the teeth of ratchet-wheel Z, and revolving the shaft 6 and disks h h and moving the links k k and sliding carriages F back into the position of Fig. 2, carrying the casting-box andstereot-ype away from the core-block D. The attendant takes the handle 5 in one hand and the handlefin the other hand and raises the handle f, depressing the catch 9 releasing the casting-box from said catch, and then by handle 5 tipping said casting-box into a horizontal position, resting upon the rest 9. The side bars a and plate a are now removed, and the stereotype-plate and paper matrix lifted out. The paper matrix is now peeled away from the plate and may be placed in the casting-box, as heretofore described, and the IIC operations repeated to form a second plate, if

desired. I

Figs. 5 and 6 represent a device for cutting and trimming the end of the cast stereotype plate that is uppermost in the box, and for separating from it the superfluous metal in the gate above while said metal is soft and hot. A metal L-shaped head-piece, N, is adapted to setting upon top of the core-block D and to be bolted to the same, and it has an inclined curved face, at r, acting as a funnel, down which the melted metal is poured in casting, and a face-plate, r, resting against and bolted to the core -block D. There is a sliding plate, 8, having a circular beveled cutting-edge, s, between the core-block D and the head-piece N, and said plate is slotted for the bolt t, and it is operated by the links 25, connected to the bolt t, and pin 22 in the lugs 'r of the frame-plate r, and said pin 12 has conv nected to its lower end the operating-lever a, the movement of which lever works the sliding cutter-plate s to force said cutter through the soft and hot metal and cut and separate the surplus metal or gate from the stereotypeplate to finish the edge of the said stereotypeplate.

I do not limit myself to the precise mechanism for operating said cutter as heretofore described, as the same might be operated by different devices.

I claim as my invention- 1. The combination, with the core-block D, of the casting-box E, and mechanism, substantially as specified, for supporting the same,-

the side bars, a 11, provided with pins 1, entering holes in .the casting-box, the end plate I) and its bolts 2, the end plate a and handles 3, the bars a a and plates 1) a being undercut to receive the edges of the paper matrix, substantially as specified.

2. The core-block D and casting-box E, mounted upon trunnions, and their bearings and the sliding carriage F, in combination with a handle, 5, for swinging the casting-box, a rest, 9, a catch, 9", and a slotted plate, 6, to lock the casting-box in an upright position, and ahandle, f, by which said catch 9* is operated, substantially as specified.

3. The core-block D and castingbox E, in combination with the sliding carriages F, trunnions F and their bearings, standards F standards 6, shaft 6, handles f, hub 9, rest 9, catch g", and the slotted plate 6, and handle 5, substantially as specified.

4. The core-blockD and the stationary frame to whichit is connected, and the casting-box E, having trunnions, in combination with the sliding carriages having bearings forthe trunnions, and the disks h h, shaft '5, links is k, ratchet-wheels Z Z, pawls m m, hub n, and lever n, substantially as specified.

5. The combination, in a stereotypeplate casting-machine, of a core-block bolted to the frame of the machine and maintained in an almost perpendicular position, a casting-box adapted to receive the paper matrix, and provided with trunnions at the sides thereof, and sliding bearings for the same and adapted to being turned up almost perpendicularly and placed against the core-block for casting and to being turned down horizontally for the removal of the stereotype-plate, substantially as specified.

6. The core-block Dand casting-box E, and the trunnions, bearings, and sliding carriages for the same, in combination with the disks h h, shaft i, and links 70 k, and a lever by which the said parts are operated, substantially as specified. Y

7. The casting-box E and core-block D, in combination with the head-piece N, the sliding cutter-plate s, the bolt 25, link i, the pin 1), and lever a for separating the surplus metal from the edge of the stereotype-plate, substantially as specified.

8. The combination, with the casting-box E, the side bars, a a, and end plates for holding the matrix, of the core-block D, the bar 0, and adjusting-screws 0, substantially as set forth.

9. The combination, in a stereotype-casting machine, with the core-block, casting-box, and gage for the end of the stereotype-plate, of a head-piece upon the core-block, a cutter for removing the surplus metal from the edge of the stereotype-plate, and mechanism, substantially as specified, for giving motion to the cutter, substantially as set forth.

Signed by me this 1st day of August, A. D. 1885.

JOHN BROOKS.

Witnesses:

G120. T. PINoKNEY, HAROLD SERRELL.

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