US832883A

US832883A - Machine for making soft-metals seals.

Info

Publication number: US832883A
Application number: US7902401A
Authority: US
Inventors: Claes A Svensson
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-10-17
Filing date: 1901-10-17
Publication date: 1906-10-09
Anticipated expiration: 1923-10-09

Description

No. 832,883. PATENTBDOGT. 9, 1906. G. A. SVENSSOIL MACHINE FOR MAKING SOFT METAL SEALS. nrmcuxon mum 0GT.17. 1901.

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No. 832,883. 7 PATBNTED OCT. 9, 1906.

, G. A. SVENSSON.

MACHINE FOR MAKING SOFT METAL SEALS.

' APPLICATION FILED 0GT.17. 1901.

5 SHEETS-SHEET 2.

'No. 832,883. PATENTED OCT. 9, 1906.

G. A. SVENSSON.

MACHINE FOR MAKING SOFT METAL SEALS.

APPLICATION FILED OCT. 17. 1901.

5 SHEETS-SHEET 3.

No 832,883. PATENTED OCT. 9, 1906. G. A. SVENSSON.

Q MACHINE FOR MAKING SOFT METAL SEALS.

APPLICATION FILED 061217. 1901.

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PATENTED OCT. 9. 1906.

0. A. S-VHNSSON MAGHINE FOR MAKING SOFT METAL SEALS.

APPLICATION FILED 0OT.17, 1901.

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UNITED STATES PATENT OFFICE.

CLAES A. SVENSSON, OF BUFFALO, NEW YORK.

MACHINE FOR MAKING SOFT-METAL SEALS.

1'0 all whom it may concern: I

Be it known that I, CLAEs A. SVENSSON, a l citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, have invented new and usefdl Improvements in Machines for Making Soft-Metal Seals, of which the following is a specification.

This invention relates to a machine for casting the soft-metal. seals which are employed for sealing the doors of'freight-cars and for other purposes. Such seals usually consist of a lead disk cast on one end of a piece of wire and having an aperture through which the free end of the wire is threaded after being passed through adjacent members of a car-door fastenin or other parts to be sealed, the seal being finally compressed by a suitable hand-press for anchoring the free end of the seal-wire in the same.

My improved machine is designed more particularly for making a seal having a crimped or corrugated wire; but in its essential features its construction is adapted to the manufacture of cast seals of various descriptions irrespective of the particular construction of the seal-body or its wire.

The object of my invention is the construction of an efficient and reliable machine by which such seals can be produced with uniformity and in an expeditious manner, thus improving their appearance and reducing their cost.

The machine. comprises a sectional mold capable of opening for ,discharging the cast seal, a pot for containing molten metal hav ing a delivery-nozzle arranged over the mold and provided with a cut-off for stopping the discharge of metal when a predetermined quantity has been supplied to the mold, rollers or other devices for feeding a continuous length of Wire to the mold preparatory to admitting the molten metal thereto, a cutter for severing the wire into proper lengths, and mechanism for opening the mold after the seal has been cast around the end. of the wire. When the seal-wire is to be corrugated, the feed-rollers are corrugated at their periphery, so as to simultaneously feed and crimp the wire.

Other features of the machine consist of means for detaching the sprue from the seal after casting the same and for ejecting the sprue and the completed'seal from the mold and appliances for cooling the mold and surrounding parts.

Specification of Letters Patent.

Application filed October 17,

the machine.

Patented Oct. 9, 1906.

1901. Serial No. 79,024.

In the accompanying drawings, comprising five sheets, Figure 1 is a side elevation of the machine, the legs of its bed or table being broken away. Fig. 2 is a top plan viewof Fig. 3 is a detached bottom plan view of the driving mechanism of the wire-feeders. Fig. 4 is a perspective view of one of the seals produced by the machine. Fig. 5 is a fragmentary vertical longitudinal section of. the machine on an enlarged scale, the plane of the section being centrally throughthe wire-guides and the mold. Fig. 6 is a transverse vertical section in line 6 6, Fig. 5. Fig. 7 is an elevation of the rear endv of the wire-cutter and the adjacent rear standard. Fig. 8 is a transverse section of said. cutter and its front standard. Fig. 9 is a transverse vertical section of the wire-guide in line 9 9, Fig. 5. Fig. 10 is a vertical longitudinal section in line 10 10, Fig. 12. Fig. 11 is a transverse vertical section in line 11 11, Fig. 10. Fig. 12 is a horizontal section in line 12 12, Fig. 5. Fig. 13 is a sectional top plan view of the portion of the machine containing the mold, the sprue-lock of the mold being removed. Fig. 14 is a similar View with the top plate of the mold removed. Fig. 15 is a topplan view of the wire-guide between the feed-rollers and the wirecutter. Fig. 16 is a view similar to Fig. 5, showing the position of the parts in ejecting the seal and the severedsprue. Fig. 17 is a view similar to Fig. 6, showing the mold open. Figs. 18 and 19 are enlarged cross-sections on the correspondingly-numbered lines in Fig. 1. Fig. 20 is a cross-section similar to Fig. 6,

showing a modified construction of the mold.

Like letters of reference refer to like parts in the several figures.

The articular seal which the mold shown in the rawings is adapted to form and which is illustrated in Fig. 4 consists of a pair of thin disks (1, connected by an anchoring-web a, in which one end of the seal-wire 0. is cast, and a second web a, arranged at an angle to the anchoring-web and separated therefrom by an aperture (1 through which the free end of the Wire is threaded.

B is a suitable bed or table upon which the machine is supported. The frame of the machine consists of an upright longitudinal beam B, stiffened by ribs or flanges and arranged centrally of. the machine. This frame may, however, be of any other suitable construction.

is cast, is located in the central part of the machine. This mold is built up of a number of thin superposed plates 0 c c c". The upper plate 0, which is stationary, is equal in thickness to the upper seal-disk and provided with an aperture c of the proper size to form said disk. It extends rearwardly beyond the mold and is rigidly secured to the top of the frame B, while its front end is supported upon a plate 0 secured to the frame on the front side of the mold, as shownin Figs. 5, 11, and 13. The remaining plates 0 c c are divided vertically and centrally of the mold,

and the opposing edges of their sections or' halves are shaped to form the lower seal-disk a and the webs a a, which unite the two seal-disks. For this purpose the thickness of the uppermost divided plate 0 is equal to the space between the seal-disks, and the divided plate 0 next below is as thick as the lower seal-disk, while the sections of the lowermost divided plate form the bottom of the mold and preferably meet at the center of the same when the mold is closed, as shown in Fig. 6. In order to form the recessed sides of the threading-aperture of the seal, the sections of the intermediate divided plate 0 extend inwardly beyond the sections of the upper and lower plates 0 0 The halves or sections of the divided lower portion of the mold are carried, respectively,

b slides or carriers 0 mo'vin transversel of the machine and guided in suitable ways at the top thereof, as shown in Figs. 1, 6, 12, 13, and 14, by which construction the divided portion of the mold is opened when the slides c are retracted. The plates forming the retractible portions of the mold are secured to said slides by screws or other fastenings.

D is a movable sprue-block normally arranged directly over the aperture 0 of the uppermost mold-plate c and provided with an axial hole or passage (1, through which the molten metal enters the mold. This sprueblock, which is preferably cylindrical in form, is seated in a corresponding opening formed in a slide or carrier D, which rests upon the top plate 0 and moves lengthwise of the machine. The lower end of the sprue-block is straight and arranged flush with the bottom of its carrying-slide D, as shown in Fig. 6. By this construction the lower edge of the hole of the sprue-block D acts as a cutter, which severs the sprue d from the body of the cast seal when the block'is shifted laterally out of register with the mold by the movement of the slide D, as shown in Fig. 16. In the construction shown in the drawings the sprue-block is removably seated in the opening of the slide, so that it can be removed for sharpening its cutting edge when necessary.

The slide D may be guided on the flat top of thestationary frame B by ribs d extending upwardly from said frame into longitudinal slots of the slide, and retaining-plates (1 secured to said ribs and overlapping the slide, as shown in Figs. 2, 5, and 12. In the construction shown in the drawings the slide D is reciprocated by a rotary horizontal cam 11, having a groove (1, which receives a roller d depending from the rear part of the slide, as seen in Figs. 5 and 12. This cam is mounted on a vertical shaft E, driven by bevel-gears e e from the horizontal main shaft E of the machine. These shafts are journaled in bearings arranged on the main frame B.

The slides c", carrying the mold-sections, are reciprocated in opposite directions from the longitudinal slide D by horizontal elbowlevers F and links F. These levers are pivoted at f to the stationary frame B, and their bifurcated front ends straddle studs f, projecting upward from the transverse slides a, while their rear ends are connected with the slide D by the links F, as best shown in Fig. 12.

G is a pot for containing the molten metal arranged above the top of the machine and at one side of the mold and having a discharge-spout which is provided with a delivery-nozzle 9, located directly over the sprueblock D when in its normal casting position.

'The pot G may be heated by a gas-burner or other suitable heater and may be inclosed by a heat-retaining jacket G.

' As shown in Figs. 5 and 6, the lower end of the delivery-nozzle g is tapered to form an internal conical valve-seat g, and against this seat closes a correspondingly-shaped valve 9 The stem g of this valve is guided in an upward extension 9 of the dischargespout, which extension is steadied by a bracket 9 secured to a standard 9 and having a collar g, which encircles the extension. This collar carries equidistant radial bolts 9 which bear against the extension, as seen in Figs. 1, 5, and 6. The delivery-valve is reciprocated for opening and closing it by a vertically-swinging rock-lever h, pivoted to a bracketh on the standard 9 and having its front end connected with the valve-stem 9 as shown in Fig. 1. The lever h is rocked by a cam h of any suitable construction, which engages against the rear arm of the lever and is secured horizontally to the upright shaft E.

The movement of the valve 9 is so timed relatively to the movements of the sprueblock D and the retractible mold-sectioiis that the valve is opened, while the mold-sections are closed, and the sprue-block stands axially over the mold, and so that the valve is c osed after delivering a sufficient quantity of molten metal to fill the mold and form the sprue.

I, Figs. 5 and 12, is an automatic ejector for ex elling the sprue from the hole of the ed. aside for cutting oil the sprue. This ejecspruelock D after the latter has been shifttor preferably consists of a vertically-swinging lever pivoted at its lower end to the longitudinal slide D by a transverse pin 'L, which intersects a longitudinal slot of said slide, in which the lower portion of said rock-lever plays. The lever I is provided above its pivot with a longitudinal slot i, which re ceives a stationary pin or roller i projecting horizontally from a block i secured to the fixed frame of the machine. This pin-andslot connection forms a sliding fulcrum upon which the lever I is caused to rock by the reciprocating movement of the slide D. Extending forwardly from the upper end of this lever is a downwardly-curved finger 'Lflwhich is arranged to enter the hole of the sprucblock D, so as to thrust the sprue downwardly out of the block, the sprue dropping through an aperture i in the fixed top plate 0 of the mold. While the molten metal is being supplied to the mold the ejector-lever stands in a rearwardly-inclined position, in which its finger is withdrawn to the rear side of the delivery-nozzle g, as shown in Fig. 5. When the slide D moves backward, the lower end of the ejector-lever is swung in the same direction, and its finger i is moved. forward and downward toward the upper end of the sprue-hole, and by the time that the sprueblock D clears the top of the mold the finger enters said hole and ejects the sprue, as shown in Fig. 16. The finger i is made so short that it does not enter the sprue-block until after the latter has been shifted clear of the mold.

J indicates a seal-ejector for expelling the seal from the mold after casting it. This ejector preferably consists of a verticallysliding pin carried by the longitudinal slide D and guided in an opening therein, the pin being located on the front side of the sprue block D and at such a distance therefrom that when the sprne-block is shifted backward clear of the mold said ejector-pin stands directly over the seal in the mold, as shown in Fig. 16. This pin is moved vertically in its guide-opening by a transverse rock-lever j, pivoted in a vertical slot or re cess of the slide D by a horizontal pin 7, Fig. 12, and having its inner end pivotally attached to the upper end of the pin, while its outer end extends beyond the side of the slide. This rock-lever is actuated in turn by a second longitudinal rock-lever j pivoted at to the adjacent side of the slide D and having its front arm engaged with the projecting outer end of the first-named rocklever j, as seen in Fig. 10. The longitudinal rock-lever j is provided on its under side in rear of its pivot with a nose or shoulder j,

which is arranged to encounter a fixed stoplug j on the main frame during the backward movement of the slide D, thereby swinging the front arm of said lever'upward and rocking the transverse lever in the proper direction to depress the ejector-pin J. This action of the pin takes place immediately after the transverse slides 0 have opened the sectional mold, and the pin thus forces the seal downward out of the mold. Upon the return stroke of the longitudinal slide D the rear arm of the longitudinal rock-lever j rides over the stop-lug j thereby rocking the said lever in the reverse direction and causing the transverse rock-lever to withdraw the ejector-pin to its former position preparatory to ejecting the next seal from the mold.

In order to prevent cooling of the molten metal in the delivery-nozzle and clogging of the latter, it is desirable to heat the nozzle, and for this purpose a gas-burner k or other suitable heating device is arranged in proximity to the nozzle, as shown in Fig. 1.

For the purpose of cooling the sprue-block D of the mold and adjacent parts of the machine, this block is provided with a circumferential water-circulating groove or passage 1, Fig. 6, and the opening in the slide in which the block is seated is provided in its wall with supply and exit passages Z Z communicating with the water-passage of the block and separated by a partition P, as shown in Fig. 12. To these supply and exit passages are connected supply and return pipes Z P, the supply-pipe being connected with a service-pipe Z and the return-pipe with a wastepipe Z thereby maintaining a circulation of water around the sprue-block so long as the valve of the service-pipe is left open. For the same purpose the portion of the main frame underneath the longitudinal slide and near the mold is provided with a transverse water channel or chamber Z, to which water is supplied by a pipe Z extending into the same and connected at its outer end to the service-pipe Z", as seen in Figs. 1 and 1 1. The water escapes fromthis channel through a short pipe Z inserted into the outer end of the channel and connected with the wastepipe Z. The pipe 1 is closed at its outer end and made of larger diameter than the supply-pipe Z to leave the necessary outletpassage between these pipes.

M indicates a wire-feeding device for delivering the seal-wires to the mold, so as to cast one end of the wire in the seal. This feeding device preferably consists of a pair of horizontal feed-rollers M, arranged at the front end of the machine and located at the proper distance apart to receive the wire between their peripheries and feed the same forward. When the seal -wire is to be crimped or corrugated, as in the seal shown in the drawings, the peripheries of the feed rollers are provided with vertical teeth or corrugations, as shown in Figs. 2 and 12. The wire is preferably taken from continuous coil wound upon a reel, which is not shown in the drawings, and is directed between the feed-rollers by a horizontal guidetube m, arranged opposite the meeting sides of the rollers. This guide is supported in a standard m, rising from a bracket m secured to the stationary frame, as shown in Figs. 1 and 5. On the rear side of the feed rollers is located a second wire-guide n, consisting, preferably, of a block having a straight vertical rear face and a guide eye or channel n for the wire arranged in its top in line with the guide-tube m. The upper side of this guide-eye is preferably formed by a movable plate a, Fig. 9, which is capable of sliding vertically upon a stud n", secured to the block n, to permit the .wire to be removed in case it should. bind in the guide-eye by becoming bent or kinked. The covering-plate n is held down in place by a set-screw n or other means and in its depressed position preferably interlocks witha stud or screw n which fits into a notch in the free end of the plate, as shown in Fig. 15, thereby preventing turning of the plate on the main stud. n

Between the guide-block n and the sealcasting mold a wire-cutter 0 is arranged, which severs the continuous wire at a suitable distance in rear of the mold to leave the seal-wire of the desired length. This wirecutter preferably consists of a rotary horizontal barrel arranged lengthwise between the mold and the rear wire-guide n and provided in its cylindrical surface with an annular series of grooves 0 which extend throughout its length and are arranged to register successively with said guide and receive the front end of the wire as it is fed forward by the feedrollers. The front ends of these grooves are. flared to facilitate the entrance of the wire into the same. The straight front end of the cutter-barrel 0 bears against the straight rear side of the guide-block n and forms a cutting edge which severs the wire at thatpoint after the advancing end of the wire has been fed into the mold. The mold is provided at the side facing the cutter-barrel with an aperture 1), which receives the wire, as shown in Fig. 5.

The cutter-barrel turns in a stationary tube or bearing Q, which extends nearly throughout its length and which is supported by suitable brackets or standards Q Q An intermittent rotary motion is imparted to the cutter-barrel from a rock-shaft q by an actuating-pawl q, carried by an arm (1 secured to said shaft. The ribs left between the longitudinal grooves of the cutter-barrel form site sides of an actuating-arm r of said shaft, as shown in Figs. 1, 3, and 18. This crankdisk is secured to the lower end of the upright shaft E. Retrograde movement of the cutter-barrel is prevented by a detent-pawl 1, attached to the rear end of the bearing Q and engaging with the ribs or teeth of the barrel, as best shown in Figs. 5 and 7.

The bearing Q is provided at its front side with a longitudinal discharge-passage s for the seal-wire, which passage extends from end to end-0f the hearing, as shown in Figs. 5 and 8. In order to insure the discharge of the seal-wires from the grooves of the cutterbarrel upon arriving opposite the passage 3 of the cutter-bearing, the barrel is provided at suitable intervals with circumferential grooves t, into which extend strippers or fingers 27. These stripper-fingers bear against the bottom of said stripper-grooves, and their inner ends are beveled, as shown in Fig. 8, so that the wires are deflected or wedged out of the grooves upon encountering the inclined ends of the strippers and directed toward the discharge-passage of the cutter-bearing. One of these strippers is also preferably located at the rear end of the cutter-barrel outside of its bearing, as shown in Figs. 7 and 12. By employing a series of strippers arranged in alinement at the front side of the cutter-ban rel and extending from end to end thereof, as shown, the seal-wires are discharged laterally in a straight and even manner, thus preventing bending of the same and permitting the seals to be closely and neatly packed. The strippers also serve to prevent endwise displacement of the cutter-barrel.

When the cutting edge of the barrel becomes dull, the same is readily sharpened by grinding off its front end. As this operation shortens the barrel, its bearing Q is made endwise adjustable in any suitable manner, so that it can be shifted toward the guide-block n to compensate for the stock removed by grinding its end. In the construction shown in the drawings, Figs. 7 and 8, the rear portion of the barrel-bearing Q is adj ustably supported in the bifurcated upper end of the rear standard Q by set-screws 9 arranged in the jaws of the standard, while the front standard Q of the bearing is carried by the free end of a horizontally-adjustable arm or bracket g clamped at its opposite end to the stationary frame by a vertical bolt The bearing Q is provided with a rearwardly-extending stem g", which is clamped in the bifurcated upper end of the standard Q by a bolt 9 so that upon loosening this bolt the stem and the bearing carried by the same can be adjusted backward and forward, as may be required.

The feed-rollers N are rotated intermittently, and their motion is so timed that they feed the wire forward into the mold during the interval that the latter is open and remain at rest while the seal is being cast. Any suitable driving mechanism may be employed for effecting this movement of the feed-rollers. The mechanism shown in the drawings is constructed as follows: The feedrollers are geared together by intermeshing spur-gears u u, of uniform diameter, secured to their shafts, respectively, and one of these shafts carries a gear-pinion a ,which meshes with a large gear-wheel U, mounted loosely on 1*. vertical shaft or arbor of. This large gear-wheel is rotated intermittently for a quarter-turn at a time by an oscillating lever V, one arm of which carries spring bolt or catch '12, arranged to interlock successively with four notches '0, formed in the opposing face of the gear-wheel U at equidistant radii of the wheel, as shown in Fig. 3. The bolt of the oscillating lever V and the corresponding notches of the gear-wheel U have abrupt and beveled faces, which cause said wheel to turn forward with said lever, but allow the catch of the lever to leave the notches and ride idly over the wheel during the return stroke of the lever. This lever oscillates upon the shaft 11, and is actuated from the crank-disk R by a connecting-rod 11 as seen in Figs. 1, 3, and 18. The throw of this disk corresponds to the distance between adjacent notches of the gear-wheel U.

The operation of the machine, briefly stated, is as follows: Upon setting the machine in motion the continuous wire isfed into the mold by the feed-rollers N and at the same time the mold is closed. The metaldelivery valve 9 is now opened and a charge of molten metal supplied to the mold, whereupon this valve is closed. After the seal has been cast the cutter-barrel 0 is turned the distance from one of its grooves to the next, thereby cutting ofi thewire at the rear side of the guide-block n and at the same time bringing the next groove of the cutter-barrel into register with the guide-eye of said block. The seal being now completed, the transverse slides c recede and open the mold-sections, and simultaneously with this action the sprue-block D is retracted to the rear side of the mold by the longitudinal slide D, thereby severing the sprue from the seal-body. By this movement of the sprue-block the ejecting-pin J and the ejecting-finger 2' are brought over the seal-body and the hole of the sprue-block, respectively, and at the moment that these partsreach this position they are depressed, thus ejecting the seal from the mold and the sprue from the sprueblock. The mold is now again closed and the sprue-block returned to its former position, whereupon the cycle of operations above described is repeated so long as the machine is kept in motion. During the rotation of the cutter-barrel the severed sealwire strikes the beveled ends of the stripperfingers t and is discharged through the side aperture of the bearing-sleeve Q.

The operations above described are all automatic and follow one another in quick succession, producing a large number of neat and uniform seals with great rapidity'and reducing their cost in a corresponding measure.

It will be observed from the foregoing description that the grooved barrel 0, with its cooperating parts, performs the threefold function of a wire-cutter, a guide, and support for the wire between the feed-rollers and the mold and a discharge device for the sealwire.

By making the upper plate a of the mold stationary and integral the seal is confined against lateral displacement in the aperture of the same when the slides c recede and the sp'rue-block moves aside, thereby producing a clean sprue-cut, preventing the seal from following one or the other of the receding mold-sections, and obviating distortion of the seal.

In making comparatively large seals it is necessary to construct the lowermost plate 0 of the mold in two sections, which meet at the middle of the mold, as shown in Fig. 6, in order to permit these sections to clear the under side of the seal upon opening the mold; but in manufacturing small seals one section of the lowermost mold-plate may be eXtended entirely across the bottom of the moldcavity and the opposing section made correspondingly shorter, so that the sections meet at one side of the mold-cavity, as shown in Fig. 20. By this construction the bottom of the seal-body is cast perfectly smooth.

I claim as my invention 1. The combination of a pair of carriers and a mold comprising opposing sections re.

spectively mounted on the carriers and a top plate covering said sections and immovable relatively thereto, said top plate having an aperture which forms part of the in old-cavity ICC and in which the cast article is held from lateral displacement and distortion when said mold-sections are opened, substantially as set forth.

2. The combination of a mold having separable sections, means for opening and closing said sections, a slide movable across the moldcavity, an ejecting-pin guided in said slide and arranged to register with the moldcavity in one position of the slide, actuating devices for projecting and retracting said pin, and means for reciprocating the slide, substantially as set forth,

3. The combination of a mold having separable sections, means for opening and closing said sections, a slide movable across the mold-cavity, an ejecting-pin guided in said slide and arranged to register with the in oldcavity in one position of the slide, a rock-lever pivoted to said slide, connected with said pin and provided with an actuating nose or shoulder, and a fixed stop arranged in the path of said nose, substantially as set forth.

4. The combination of a mold having separable sections, means for opening and closing said sections, a slide movable across the moldcavit v, an ejecting-pin guided in said slide and arranged to register with the noldcavity in one position of the slide, a rock-lever pivoted between its ends to said slide, having its front arm connected with said pin and provided on the under side of its pivot with an actuating-nose, and a fixed stop arranged in the path of said nose and underneath the rear arm of said lever, substantially as set forth.

5. The combination of a mold, a cutterslide capable of moving across the top of the mold and having a sprue-hole, means for ac tuat'ing said slide, an ejector arranged to enter said sprue-hole when the same is out of register with the mold, and means for actuating the ejector, substantially as set forth.

6. The combination of a mold, a slide 11'.0V able across the top of the mold and containing a sprue-hole adapted to register with the mold, means for actuating said slide, a fixed support arranged adjacent to the slide, and an ejecting-finger fulcru'med on said, support and pivotally connected with. said slide, said finger being arranged to enter said sprue-hole when the slide is retracted, substantially as set forth.

able across the top of the mold and containing a sprue-hole, means for actuating said slide, a fiXectfulcruin-pin arranged adjacent to the slide, and a lever .pivoted at its lower end to the slide and provided with a longitu dinal' slot which receives said pin, said lever carrying an ejecting-finger arranged to enter said sprue-hole when the slide is retracted, substantially as set forth.

8. The combination of a mold, a cutterslide movable across the mold and containing a spTue-hole, independent ejectors arranged to enter the mold and said sprue-hole, respectively, when said hole is out of register with the mold, and means for actuating said slide and said ejectors, substantially as set forth.

9; The combination of a mold, a cutter- ,slide movable across the mold and containing a sprue-hole, an ejector mounted on said slide and arranged to enter the mold when the latter breaks register with said sprue-hole, a

sprue-ejector arranged to enter said spruehole when the latter is out of register With the mold, means for actuating said slide, and means for simultaneously causing said ejectors to enter the mold and said sprue-hole, respectively, substantially as set forth.

10. The combination with the bed or frame of the machine, of a pair of opposing carriers iovable toward and from each other, mold sections mounted on said carriers, a slide arranged at an angle to said carriers, means for reciprocating the slide, levers fulcrumed on the bed or frame on opposite sides of the slide and connected with said carriers, and links connecting said levers with the slide, substantially as set forth.

11. In a metal-casting machine, the combination of a mold, a. carrier traversing the same, a sprue-block seated in an opening of the carrier and provided in its surface with a water-circulating channel, and circulatingpipes connected with said channel, substantially as set forth.

12. The combination with the stationary frame and a mold, of a coolingchannel or chamber arranged in the frame adjacent to the mold, a slide traversing the mold, a sprue block surmounting the mold and removably seated in an opening in said slide, the block having an annular water-circulating channel in its surface, water-service and Waste pipes, and supply and return pipes connecting the cooling and circulating channels of the frame 7. The combination of a mold, a slide mov.

and the sprue-block with said service and waste pipes, substantially as set forth.

13. The combination with the stationary frame and a mold, of a cooling channel or chanz'ber arranged in the frame adjacent to the mold, a sprue-block surmounting the mold and surrounded by a cooling-channel, water-service and waste pipes, a return-pipe connected with said waste-pipe and extending into the cooling-chamber of the frame, a supply-pipe passing through said returnpipe into said chamber and connected with said servicepipe, and a second set of supply and return pipes connecting the cooling-channel of the sprue-block with said service and waste pipes, substantially as set forth.

CLAES A. SVENSSON.

Witnesses:

CARL F. GEYER, TI'IEO. L. POPP.

Witness my hand this 14th day of October, 10 5