US3172172A - Stereotype plate casting machine - Google Patents

Description

March 1965 P. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 2 Filed June 6, 1961 I 1/v./// so 73 jumif 1%} M 97% ATToRNEYs I PAUL March 9, 1955 P. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 3 Filed June 6. 1961 FIG. 7

s B NM" 8 6 S mm Y u H E ToLc N W m u n m A "0PM M B WW2 March 1965 P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE Filed June 6, 1961 17 Sheets-Sheet 4 P JFY 'TK EE ON CHARLES L. RICARDS Y PAUL J. SCHKEEPER Wm, M 7 ATTORNEYS March 9, 1965 Filed June 6, 1961 P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 5 INVENTORS BY P UL J. scHKEEPER pm w), M l M X f ATTORNEYS March 9, 1965 P. L. TOLLISON ETAL 3, 7

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 6 Filed June 6. 1961 FIG. IO

INVENTO RS PAUL L. TOLLISON CHARLES L. RICARDS BY PAUL J. SCHKEEPER WW, I M f ATToRNl-tvs FIG. ll

March 9, 1965 P. TOLLISON ETAL STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 7 Filed June 6. 1961 lNVENTO RS UL L. TOLLISON L. RICARDS CHARLES ATTORNEYS March 9, 1965 Filed June 6, 1961 FIG. l4

P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 8 INVENTORS PAUL L. TOLLISON CHARLES L. RICARDS BY PAUL J. SCHKEEPER M $7 7 ATTORNEYS March 1955 P. L. TOLLISON ETAL STEREOTYPE PLATE CASTING MACHINE Filed June 6, 1961 17 Sheets-Sheet 9 mom INVENTORS PAUL L. TOLLISON CHARLES L. RlCARDS PAUt. J. SCHKEEPER M I M 2 $75 ATTORNEYS Mflmh 9, 1965 P. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE 1'7 Sheets-Sheet 10 Filed June 6. 1961 wmu PAUL L.T L CHARLES L. RICARDS 'PA L J SCHKEEPER %M6/ M 3 74 ATTORNEYS March 1955 P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 11 Filed June 6. 1961 INVENTORS C RLES L.

PmL J. SCHKEEPER ATTORNEYS March 9, 1965 P. L. TOLLISON ETAL 3,

STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 12 Filed June 6, 1961 INVENTORS zaaaL -se afxaos BY PAZL sc'HK EPER w I Eonvw: Z C ATTORNEYS March 1965 P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE Filed June 6, 1961 17 Sheets-Sheet 13 FIG. 20

FIG. l9

lNVENTORS PAUL L. TOLLISON CHARLES L. RICARDS I BY PAU J. SCHKEEPER 1W, M, @406, M 423 5? ATTORNEYS March 9, 1965 P. L. TOLLISON ETAL 3,172,172

STEREOTYPE PLATE CASTING MACHINE KEEPER MC M 2 ATTORNEYS NN QE INVENTORS PAUL L. TOLLISON CHARLES L. RICARDS BY PAUL .8921

l7 Sheets-Sheet 14 Filed June 6. 1961 March 9, 19 P. 1.. TOLLISON ETAL 3,

STEREOTYPE PLATE CASTING MACHINE Filed June 6, 1961 17 Sheets-Sheet 15 FIG. 23

INVENTO R5 PAUL S FIKEPE March 9, 1965 P. L. TOLLISON ETAL STEREOTYPE PLATE CASTING MACHINE l7 Sheets-Sheet 16 Filed June 6, 1961 T aEzN PAUL L. 0|. CHARLES L. RICARDS BY PAUL .1 W 7 IA:TTORNEYS March 9, 196 P. 1.. TOLLISON ETAL STEREOTYPE PLATE CASTING momma 1'7 Sheets-Sheet 17 Filed June 6, 1961 United States Patent 3,172,172 STEREOTYPE PLATE CASTING MACHINE Paul L. Tollison, North Piainfieid, Charles L. Ricards,

South Plaiiifield, and Paul J. Schkeeper, Plain'field, N..I.,

assignors to Wood Newspaper Machinery Corporation,

Plainfield, N.J., a corporation of Virginia Filed June 6, 1961, Ser. No. 115,145 11 Claims. (Cl. 22-8) This invention relates to a stereotype plate casting machine and more particularly to a stereotype plate casting and finishing machine for making newspaper printing plates.

Stereotype plate castings used in newspaper presses must be cast quickly and without any blemishes on the type surface because of gas evolving from the molten metal as it soldifies. Usually the plate is cast with the tail portion at the top of the plate as it lies in the mold cavity so that gases may rise into this portion and also to provide a sufficient reservoir of molten metal to counteract for shrinkage of the casting as it solidifies. The tail portion is then severed from the casting and the cut edge of the remaining plate portion of the casting beveled so that it may be fitted onto a printing cylinder. In addition, recesses are often milled on the underside of the plate so that the plate may be locked onto the printing cylinder by plate locking clamps mounted on the cylinder.

It is desirable for the ports comprising the mold cavities of the machine to be controllably cooled in order that a maximum number of plates may be cast in a minimum amount of time under proper temperature conditions. It is further desirable that the complete machine be as auto matic in operation as possible in order to reduce labor expense and the necessity of manually handling hot castings. It is further desirable that the machine have safeguards to prevent inadvertent jamups of plates as they move from the casting station on to the other finishing stations.

It is, therefore, an object of our invention to provide for a plate casting and finishing machine in which the steps from the act of casting until the plate is completely finished and cooled and ready for removal to the pressroom are completely automatic. 4

A further object of our invention is to provide for a plate casting machine which will operate at a high rate of production and which will be able to rapidly cool molten metal in" the mold in order that castings may be moved to finishing stations.

It is a further object to provide for means which will automatically move plates from a shaving arch wherein the tail is severed from the plate so doing away with manual handling of the hot plate. Still a further object is to provide means whereby severed tails and defective plates may be ejected from the casting machine and returned to a melting pot.

An additional object of our invention is to provide a safety stop means whereby a plate will be prevented from inadvertently entering a milling station in which recesses are milled while another plate is still in the station.

Broadly, we propose to provide for a plate casting and finishing machine which has a casting station, a shaving station, an ejection station, a milling station, and a cooling station. The casting station comprises a movable core which cooperates wtih a movable box to form amold cavity. The core has therein circulating passages through which a circulating cooling fluid may flow to provide an even cooling over the entire surface of the core adjacent to the mold cavity. In particular, the core has therein a manifold separated from the core" body by a cooling section. The manifold has an inlet for the admission of a cooling fluid and a plurality of jets so that the cooling fluid may be sprayed into the cooling section $172,172 Patented Mar. 9, 1965 onto the Wall of the core forming a side wall of the mold cavity. Discharges are placed at the bottom of the cooling section and the total crosssectional area of the discharges is greater than the inlet in order to insure complete removal of water from the core when the inlet is closed.

Core rotation means are provided for rotating the core to a horizontal position where pusher means may then push the casting into the shaving station. In the shaving station, the tail is severed from the casting and the severed edge trimmed by conventional means.

Propeller means are provided in the shaving station for moving the cast plate out of the station. The propeller means comprises a rotatable lug mounted on a lug carriage. The lug carriage in turn is slidably mounted in tracks on a rotatable knife bar which carries thereon a cutting saw for severing the tail section from the casting and knives for beveling the severed end of the casting. The carriage is connected to a drive chain which in turn is intermittently driven by the rot'ata-ble knife bar.

Powered roller are provided to carry the severed tail from the shaving station to an ejection station and also to move the plate after it is moved out of the shaving station by the propeller means.

The ejection station of the casting machine has a pivotable arm therein which pivots underneath a severed tail to throw the tail from the machine onto a conveyor which returns it to the melting pot. The pivot'a'ble arm also has a control so that the arm may beaetuated to eject a defective plate from the casting machine.

Incline means are provided betweenthe ejection station and milling station for moving the plate to the milling station. Safety s't'op means are positioned between the ejection station and the milling station on the incline means to prevent inadvertent entry of a plate in the milling arch While another plate is being milled in the arch. The safety stop means comprises two retractable stop moved by the miller drive means in the milling arch and which Operate so that when one stop moves out of the path of a plate moving into the arch, the other stop will move up so that the plate may move down the incline means to the arch only when both stops are in a retracted position.

Referring to the drawings in which a preferred embodiment of our invention is shown,

FIG. 1 is a front partial sectional view of a complete plate castingand finishing machine constructed according to, our invent-ion;

FIG. 2 is an enlarged view of FIG. 1 taken along lines 22 illustrating conveyor means for removing chips from the machine to a second conveyor which returns the chips to a melting pot;

FIG. 3 is an enlarged cross-sectional view of a core andcasting boxof the machine of FIG. 1 shown in the casting position;-

FIG. 4 is a cross-sectional view of a core of FIG. 3 taken along lines 4-4;

FIG. 5 is a cross-sectional view of the core of FIG. 3 taken along lines 55;

FIG. 6 is a rear view of a portion of the machine of FIG. 1 illustrating pusher means for moving the plate from the core into a shaving station;

FIG. 7 is an enlarged view of a portion of the end of the machine of FIG. 1' taken alonglines-77;

, FIG. 8 is an enlarged sectional view of the machine of FIG. 1 illustrating the propelling means for moving a plate out of the shaving station;

FIG. 9 is a View similar to FIG. 8 showing the exit end of the shaving station;

FIG. 10 is a broken plan view of the shaving station of FIGS. 8 and 9 with the shaving arch removed;

FIG. 11 is an enlarged cross sectional view of the propeller arm shown in FIG. 8- taken along lines 11-11;

FIG. 12 is a cross-sectional view of the knife bar and tail cutter assembly taken along lines 1212 of FIG. 9;

FIG. 13 is an enlarged end view of the differential gear assembly illustrated in FIG. 9 taken along lines 13--13;

FIG. 14 is an enlarged side sectional view of the shaving arch clamping drive means and of a part of the propeller arm drive means;

FIG. 15 is a cross-sectional view of FIG. 14 taken along lines 1515;

FIG. 16 is a partial cross-sectional view of FIG. 14 taken along lines 16-16 illustrating the shaving arch lockup means;

FIG. 17 is a partial cross-sectional view of FIG. 14 taken along lines 17--17 illustrating a part of the propeller arm drive means;

FIG. 18 is a partial cross-sectional view of FIG. 14 taken along lines 18-18 and illustrating the ejector arm mechanism;

FIG. 19 is an enlarged cross-sectional view of FIG. 16 taken along lines 1919;

FIG. 20 is an enlarged cross-sectional view of FIG. 16 taken along lines 2020;

FIG. 21 is an enlarged cross-sectional view of FIG. 17 taken along lines 21-21;

FIG. 22 is an enlarged cross-sectional view of a portion of FIG. 1 illustrating the safety stop means for preventing inadvertent entry of a plate in the milling station;

FIG. 23 is a plan view of the structure illustrated in FIG. 22;

FIG. 24 is a cross-sectional view of the structure of FIG. 22 taken along lines 2424; and,

FIG. 25 is a cross-sectional view of FIG. 22 taken along lines 25-25.

Referring in greater detail to the drawings and in particular to FIG. 1, 1 denotes generally a stereotype plate casting machine having a casting station 200, a shaving station 300, an ejection station 500, a milling station 600, and a cooling station 700.

The casting station comprises a melting pot 202 in which metal may be melted so that it may be pumped by conventional pumping means through the spout 204 from where it may drop into a mold cavity 206 formed by a movable casting box 208 and a movable casting core 210 as shown in FIG. 3. The casting box 208 has therein a suction space 212 which is connected by means of a conduit 214 to a suction pump (not shown) in order that a mat M may be securely held therein. The box, which is movable laterally by means not shown, has a cooling section 216 through which coolant may be circulated.

The core 219 has therein a cooling section 218 and a manifold section 220. An inlet passage 222 communicates with a flexible hose 224 through which cooling water may flow into the manifold 220. A plurality of ports or nozzles 226 extend through a wall of the manifold into the cooling section 218. At the bottom of the cooling section 218 are discharge passages 228 and 233 through which the cooling water is discharged from the cooling section. A flexible hose 231, which connects with discharge passage 228, extends onto the shaving arch so that a portion of the cooling water passing from the core is also used to cool the shaving arch. The nozzles 226 near the bottom end of the manifold are spaced closer together than at the top so that more water may be passed into the lower portion of the cooling section than in the upper portion of the cooling section. This is so that the cooling of the core will be even along its length since molten metal flowing into mold cavity 206 from the spout 204 will initially fill the bottom of the cavity so that the bottom of the mold will tend to be hotter than the top if no provision were made to provide extra cooling. The total area of the discharge passages 228 and 233 is greater than that of the inlet passage 222 to insure that no water will remain in the cooling section after the inlet is closed by a solenoid-operated valve (not shown) before the core is rotated. The core must be emptied of water before a plate is cast otherwise the core would become too cold which would produce a defective casting.

The core 210 is rotatable to a horizontal position by means of a hydraulic actuator 230. The actuator 230 has a movable rod 232 which connects to an arm 234 which is rotatable about a shaft 236. An arm 238 is integral with arm 234 and is connected by a link 240 to the core 210. The core is partially supported in a vertical position by means of an arm 242 which is pivotable about a point (not shown).

The core and box are moved in a manner and by the apparatus as shown in application Serial No. 802,481, filed March 27, 1959, by P. L. Tollison and C. L. Ricards, now Patent No. 3,052,933 issued Sept. 11, 1962. In order to cast a plate, the box is first moved horizontally away from the core to a tilted position wherein a mat may be easily and accurately positioned in the box after which the mat is clamped into the box by mat clips (not shown). The box is then tilted to the vertical position or mat stripping position and moved horizontally to the casting position as shown in FIG. 3 wherein it forms with the core 210 a mold cavity. While the box is in the mat stripping position, the core is in a horizontal position and rotates to the vertical before the box moves to the casting position. Molten metal is then pumped from the melting pot 202 through spout 204 so that it falls into the mold cavity. After the metal has solidified, the casting box is moved horizontally to the mat stripping position after which the core is rotated to a position as shown in FIG. 6 where the plate is lifted by plate lifters (not shown) from the core.

When the casting has been lifted off the core, a pusher arm 250 as shown in FIGS. 6 and 7 is rotated by a hydraulic actuator 252 about a shaft 254 so that a contact shoe 256, carried on the end of the arm, will extend down and behind the casting as shown in FIG. 7. The pusher arm, shaft, and actuator are all carried by a bracket 258 in turn carried by a bar 260 extending parallel to the longitudinal axis of the machine. The bracket 258 is prevented from turning about the rod 260 by means of a square bar 262 which extends parallel to and below bar 260. The bracket has a plate 264 which extends behind the bar to prevent the bracket from rotating about the bar 260.

The pusher arm is provided with two limit switches 266, only one of which is shown in FIG. 7, operated by cams 268 and 270 which operate solenoid valves to control admission of pressure fluid to actuator 252.

The bracket 258 is moved longitudinally of the machine by means of a double acting transfer actuator 272. A chain 274 connects at one end to the actuator 272 and at the other end with a piston rod 276 while meshing with cogs 278 and 280. Application of pressure to either end of the actuator will cause the piston rod to move and rotate a shaft 281 on which cog 278 is mounted. A drive cog 282, which is also mounted on shaft 281, will rotate so moving a chain 283 and bracket 258.

As the pusher arm approaches the shaving station 300 and is clear of the core 210, the bracket will contact a limit switch 284 which will activate a solenoid valve (not shown) to allow pressure to be applied to core rotation actuator 230 to return the core to the vertical casting position shown in FIG. 3. A limit switch 285 is activated by the bracket to cause reversal of hydraulic pressure in actuator 272 and thus serves to limit movement of the casting into the shaving station and to return the pusher arm to the start position.

As the bracket clears the shaving station 300, it will activate a switch 286 which will operate a solenoid valve to cause hydraulic pressure in actuator 252 to raise arm 250. As the bracket reaches the extreme limit of its travel to the left as shown in FIG. 11, it will contact a further limit switch (not shown) which causes a bleed-off in pressure in actuator 272 thus stopping the pusher arm in the correct position to again remove a casting from the core.

some

The complete pushing operation is begun when the core on reaching the retracted or horizontal position activates a limit switch (not shown) to cause pressure to be admitted to the actuator 252 to cause the arm to drop.

Referring to FIGS. 8 and 9, there is shown a shaving arch 301 having means for severing a tail portion T of a plate casting P along with means for moving the plate out of the shaving arch. A plate is initially positioned in the shaving arch by means of the plate pusher arm 250 as previously explained and until cast lugs L, which are cast onto the tail portion of a plate as shown in FIG. 10, contact adjustable stops 303 as shown in FIG. 12. The stops 303 are adjustable and are attached to a rotatable knife bar 302 which is journalled in bearing assemblies 304 and 305 carried in the frame of the casting and finishing machine. The knife bar is rotated by a worm gear 307 connected to a drive means (not shown).

After the plate has been positioned in the shaving arch 301, it is ready to be lifted and clamped to the underside of the arch so that the tail may be severed and the severed edge beveled.

Referring to FIGS. 9, 14, and 16, it is seen that a drive gear 306 mounted on the rotatable knife bar 302 meshes with a clamp-up gear 308' which is keyed to a cam shaft 310 journalled in bearings 313 and 315 mounted in the frame of the casting and finishing machine. Cam shaft 310 has thereon a cam 312 on which a cam follower 314 is mounted on a yoke 316. Yoke 316 in turn is connected to an arm 318' which is mounted on a rotatable shaft 320. Shaft 320 also has thereon an arm 322 connected to a further arm 324 which has on the end thereof a foot 326 on which one end the plate rests. The other end of the plate rests upon a track 327 so that the plate is supported by the track 327 and foot 326 while in the shaving station. A spring 317 urges the cam follower 314 into close con tact with the cam 312 at all times. Itis seen that when the cam shaft 310' is rotated, as the cam follower hits the high part of the cam, it will cause the arm 322 to rot-ate in a counterclockwise direction as shown in FIG. 16 to raise the foot 326 and so raise the plate casting P until it securely abuts the underside of the shaving arch.

A saw 330, as shown in FIGS. 8, 9, and 12, is rotatably mounted in a saw body 332 which in turn is mounted on the rotatable knife bar 302. The saw 330 is rotated in the saw body by means of a saw drive shaft 334 through gears 336, 338 and 340. The saw drive shaft 334 in turn is driven by a belt drive 342 connectedto a drive means (not shown).

Also mounted on the rotatable knife bar are knives 344 and 346 which serve to eut a bevel 348 on a plate P and to shave the ribs inside the plate after the tail portion T has been severed from the plate by saw 330. After the tail has been severed it will drop down on powered rollers 350, FIGS. 22 and 23, which will carry the tail to the ejection station where it will be ejected from the machine and returned to the melting pot as more fully explained hereafter.

The propeller means for moving the cast plate, after the tail portion T has been severed therefrom, out of the shaving arch is best illustrated in FIGS. 8, 9, 10, and 11. The propeller means comprises a rotatable lug 360 which is mounted on a shaft 362 whichin turn is carried by a carriage 364. The l'ug'360 has a-tors'ion spring 366 which urges the lug upward so that it may contact the rear end of a plate to' move the plate out of the shaving arch and so that a casting may pass over it when moved into the arch by the pusher arm 250. The carriage 364 slides in tracks or ways 368 which in turn are connected to a knife bar 302. The carriage 364 is connected through a narrow slot 370' in the ways 368 to a chain-operated "carrier 372 by means of a pin 374. The chain-operated carrier 372 is slidable in ways 376 machined in the knife bar 302, and the chain-operated carrier is confined in the ways 376 by the ways 368 which also serve as a protective covering to prevent entry of metal chips, shavings, etc.

into the ways The chain-operated carrier is connected by a pin 378 to a special link 380 which is a part of a chain 382. Chain 382' fits onto an adjustable sprocket 384 and to a drive sprocket 3 86. The adjustable sprocket 384 is sl-idable longitudinally of the knife bar in ways 388 machined in the cutter bar and is held in position in the ways by a clamp 390. By moving the sprocket 384, the tension of the chain 382 may be adjusted.

Drive sprocket 386 is driven by mitre gears 392 and 394 as shown in FIG. 9. Mitre gear 394 has an integral shaft 396 which extends outward-1y of the knife bar 302 and has secured to its end a differential gear 398. Differential gear 398 in turn meshes with cluster bevel gears 400 and 402. Gears 400 and 402 are journalled in a spider 404 which is rotatable about shaft 396. An input gear 406 is a central member of the differential and is an integral part of the enclosing structure for the differential.

Referring to FIGS. 19 and20, it is seen that a gear 408 is keyed to a differential bevel gear 410 which also meshes with gears 400 and 402. Gear 408 meshes with a pinion 412 wihch in turn meshes with another pinion 414 as best shown in FIGS. 19 and 20. Pinion 414 meshes with drive gear 306 which is also used to actuate the plate clamping mechanism in order to clamp the plate up against the shavingarch 301.

Referring to FIGS; 14, 17, and 21, it is seen that gear 406 of the differential meshes with a gear 416 which in turn is keyed to a gear 418 journalled on cam shaft 310. Gear 418 meshes with a idler gear 420 which is engaged by a rack 422. Rack: 422 may be moved by a doubie acting fluid actuator 424. Fluid pressure to actuator 424 is controlled by a solenoid-operated valve (not shown). controlled by a limit switch 426 and a cam-operated switch 428. A earn 430 is mounted on cam shaft 310 and will actuate switch 428 to cause hydraulic pressure to be admitted to the blind side of actuator 424 to move the rack 422 to the right as shown in FIG. 17. When rack 422 contacts limit switch 426, it will cause hydraulic pressure to be admitted to the rod end of the actuator 424 so causing the rack to move to the left as shown in FIG. 17.

During rotation of the knife bar 302, the propeller means 360 will tend to move and not be in correct position to receive a plate coming into the shaving arch 301 if provision is not made in the arrangement of the gear: ing to cancel out the planetary effect of the rotation of the knife bar and the relative position of the propeller means. In the illustrated arrangement of gearing, it will be'evident from FIGS. 19 and 2 0 that when the knife baf rotates one revolution, gear 306, keyed to the knife bar, will cause gear 408 through intermeshing pinions 4 12 and 414 to also rotate one revolution but in an opposite direction to that of the knife bar. Gear 408, which is keyed to gear 410, will then cause gears 400 and 402' to rotate. If the spider 404 is locked from rotation by maintaining fluid pressure in actuator 4 24 and thus locking the rack 422 and gears 420, 418, 416, and 408 from movement, then gears 400 and 4 02 will cause' the gear 398' and shaft 396 to rotate in the same direction as the knife bar 302 with no relative movement between them. Since there is no relative movement, the propeller arm 360 will remain stationary with respect to the knife bar.

The sequence of operation in propelling a plate out of the shaving arch is as follows: As the knife bar rotates and just before it stops, earn 430 will trip switch 428 setting up an electrical circuit so that when the knife bar stops rotating, the cam 430 will release the switch 428 v to energize a solenoid valve (not shown) to divert a

Claims (1)

1. A STEREOTYPE PLATE CASTING AND FINISHING MACHINE COMPRISING A CASTING STATION, A MOVABLE WATER-COOLED CORE AND A MOVABLE CASTING BOX IN SAID CASTING STATION, SAID CORE AND BOX TOGETHER FORMING A VERTICALLY EXTENDING MOLDE CAVITY INTO WHCH MOLTEN METAL MAY BE POURED, CORE ROTATION MEANS FOR ROTATING SAID CORE AND A CAST PLATE TO A SUBSTANTIALLY HORIZONTAL POSITION, PLATE PUSHER MEANS FOR PUSHING SAID PLATE FROM SAID CASTING STATION INTO A SHAVING STATION, A ROTATABLE KNIFE BAR HAVING A CUTTING SAW THEREON FOR SEVERING A TAIL FROM A CAST PLATE WHILE IN SAID SHAVING STATION, AND EJECTION STATION, POWERED ROLLER MEANS FOR MOVING A SEVERAL TAIL FROM SAID HOUSING STATION INTO SAID EJECTION STATION, PROPELLER MEANS FOR MOVING A PLATE FROM SAID SHAVING STATION ONTO SAID POWERED ROLELRS SOT THAT SAID PLATE MAY BE CARRIED TO SAID EJECTION STATION, EJECTOR MEANS IN SAID EJECTION STATION FOR EJECTING SEVERED TAILS FROM SAID CASTING MACHINE AND FOR EJECTIING EFFECTIVE PLATES FROM SAID CASTING MACHINE, RETRACTABLE EJECTION STOP MEANS FO STOPPING A PLATE IN SAID EJECTON STATION, INCLINED MEANS FOR MOVING A PLATE BY GRAVITY FROM SAID POWERED ROLLER MEANS, A MILLING STATION WHEREIN RECESSES ARE MILLED ON THE BOTTOM SIDE OF SAID PLATES, AND RETRACTABLE SAFETY STOP MEANS FOR PREVENTING INADVERTENT MOVEMENT OF A PLATE FROM SAID INCLINE MEANS INTO SAID MILLING STATION.

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