US1162246A

US1162246A - Casting-machine.

Info

Publication number: US1162246A
Application number: US76375213A
Authority: US
Inventors: Paul S Menough
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-04-26
Filing date: 1913-04-26
Publication date: 1915-11-30
Anticipated expiration: 1932-11-30

Description

P. s. MENOUGH.

CASTING MACHINE.

APPLICATION HLEO APR. 26, 1913- Patented Nov. 30, 1915.

Suva/M01 4 SHEETS-SHEET l.

wi/twwoeo P.'-s. MENOUGH. CASTING MACHINE.

APPLICATION FILED APR-26. I9I3. I

' Patented NOV. 30,1915.

4 SHEETS-SHEET 2- In I I a; #6 I P. s. MENOUGH. CASTING MACHINE.

APPHCATION FILED APR.26, I913.

Patented Nov. 30, 1-915 4 SHEETS-SHEET 3.

Subwtoz 1% m m w P. S. MENOUGH.

, CAST I N'G MACHINE.

APPLICATION FILED APR-26, ISIS- r 1,162 246, Patented Nov. 30, 1915.

4 SHEETS-SHEET 4.

PAUL S. MENOUGH, OF WELLSVILLE, OHIO.

Application filed April 26, 1913. Serial No. 766,752.

To all whom it may concern:

Be it known that 1, PAUL S. MEN UGH, a citizen of the United States, residing at Wellsville, in the county of Oolumbiana and State of Ohio, have invented certain new and useful Improvements in Casting-Machines,

of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machines for making small castings in permanent molds.

The machine as illustrated in the drawings is primarily intended for the production of iron castings, but I desire it to be understood that machines embodying my invention can be used for other metals, as, for instance, steel, bronze or aluminum. The machine is adapted for the making of small washers, but it will be understood that my invention is not so limited and that the machine, with modifications, can be used for casting other small parts.

One of the objects of the invention is to provide, a casting machine having an im proved arrangement controlling device s therefor.

Another object is to provide improved mold sections and improved devices for ejecting castings from the molds. I

Another object is to provide improved means for moving and controlling the parts of the mold.

A further object is to provide an improved means for supplying molten metal to the mold.

A still'further object is to provide means whereby the various parts of the machine can be controlled and operated electrically.

Other objects will be apparent from the following specification'and claims. Y

Of the accompanying drawings, which illustrate the embodiment of my invention which I now deem preferable, Figurel is a plan vie of a single machine with the mold closed, the metal reservoir and associated parts being removed for the sake of clearness. It will be understood practice I prefer to use a battery of machines such as that shown in the drawings. Fig. 2 is a plan view similar to Fig. 1 but showing the mold open. Fig. 3 is an end elevation of a single machine, together with part of an opposite or companion machine. This view also shows the metal reservoir and shows in section one of the valves for the molten metal.

CASTING-MACHINE.

Specification of Letters Patent.

of mold sections, and

that in Fig. 41s an end view of a,

Patented Nov. 30, 1915.

single machine. Fig. 5 is a view of the movable mold part, thisview being taken along the line 55 of Fig. 2. Fig. 6 is a.

planview', partly diagrammatic, of the controlling mechanism for the machine. Fig. 7 lsan end view of a part of the controlling mechanism. Fig. 8 is a diagrammatic view of the entire apparatus showing theelectrical connections.

Referring to the drawings, 1 represents a stationary mold sectlon which is secured to and mounted upon the

main base castings

2, 2. As shown in the'drawings, this mold section 1 is simply a prismatic block of metal with smooth

parallel surfaces

8, 3, adapted to cooperate with

mold sections

4, 4.

The molds which I have shown are adapted for the casting of washers and use is made of the

planesurfaces

3, 3, of the block 1 which cooperate with the recesses or

depressions

5, 5 in the

blocks

4, 4 to form the outlines of the washers. When other devices are to.-be cast, the mold sections must obviously be correspondingly modified.

Each'block. or mold section 4 has secured to it frames or housings, mounted

wheels castings

2, 2, are

tracks

8, 8, which are adapted to engage with and support the

wheels

7 ,7. The mold sections or

blocks

4, 4, are'supplementally guided and supported by means of 6, 6, in which are or

rollers

7, 7 On the base pins 8 which are rigidly mounted in the' in the cylinder isa piston 10 which has connected to it a rod 1.1.

At 12 there is a stufling tight joint around the rod.

The end of the piston rod 11 is pivotally connected at 13 to lugs or'ears 14 on a fiat vertical plate 15. Secured to this plate 15, preferably by means of countersunk screws 15", are pins suitable apertures in the mold section 4 and into the recesses or depressions they serve'to form the eyes or holes in the washers as they are cast. The ends of these

pins

16, 16 are slightly tapered, as shown, in order to permit easy withdrawal.

The plate the block or mold section 4, but this movement is limited by the

clips

17, 17 whichextend over the ends of the plate. When-the 15 is movable with respect to box for forming a 16, 16, which'extend through piston and pistonrod are moved outward in the manner to be described, the plate and the

pins

16, 16 are moved with them. In this way theends of the pins are withdrawn from the recesses and consequently from the washers which have been formed in the

recesses

5,5. However, as soon as the plate 15 contacts with the

clips

17, 17, motion is collars 22 are, engaged air or water und transmitted to the'mold section 4 and it is moved outward with the plate to the position indicated in Fig. 2. On the return movement theplate is first moved into contact with the block and the pins are moved into the operative positions. Then the block is moved with the plate and all of the parts arereturned to the position shown in 1g. 18 is a transverse strip or-plate which is secured in place in any desired way, but preferably by being caught under the nuts which hold the stufling box 12 in place. This plate 18 carries at its ends

small bearing castings

19, 19, which are apertured to receive

pins

20, 20. These pins extend inward through suitable apertures in the mold section 4 and terminate at their inner ends in collars or

enlargements

21, 21 which are normally seated in suitable recesses adjacent and joining the

larger recesses

5, 5. Each pin 20 carries an intermediate collar 22 and a spring23 interposed between the collar 22 and the block 4 normally holds the pin in its outermost position. However, when the mold section 4 and associated parts are retracted, as shown in Fig. 2, the by the plate 18 and the pinsare moved inward relative to the block or mold section 4 and serve to engage and eject washers from therecesses of the mold. As soon as the mold section returns to its normal position, as shown in Fig. 1, the springs. 23 return the pins to their outermost positions. It will be understood that the number and position of'the pins 21 can be varied as found necessary.

For operating the piston 10 in the. cylinder 9 use may be made of either compressed er pressure. For present purposes I will re er to the motive fluid as air,'but it will be understood that wateror other fluid may be used if preferred.

24 and 25 represent ports communicating with the cylinder 9 at the inner and outer ends respectively.

26 and 27 are three-way valves, The valve 26 communicates with the supply pipe 28 and with the port 24 by means of the pipe 29. The valve 27 communicates with the supply pipe 28 and with port 25. The discharge ducts for the valves are indicated at 26 and 27. Each valve is soconstructed that when in one position it will establish communication between the supply pipe and the corresponding port, and when in another position, will establish communication be inner end of the cylinder 9.

4 is provided which is v to the bottom wall 'recess-in the bottom wall The rod 40 is,

reservoir.

to them gear

wheels

30 and 31. These gear wheels mesh with rack teeth formed on a ,5

bar 32 which is slidable horizontally through solenoids 3-3 and 34. When the solenoid 34 is energized, the rod 32 is moved to the position shown in Fig; 1 turned to admit pressure fluid to outer end of the cylinder. At the same time the valve 26 is moved to connect the inner end of the cylinder with the atmosphere. In this way the movable mold section 4 is forced against the stationary mold section 1. hen the solenoid 33 is energized, the rod 32 is moved to the position shown in F ig. 2 and thevalve 26 is turned to admit pressure fluid to the At the same time the valve is turned to connect the outer end of the cylinder with the atmosphere.

and the valve 27 is l In this way the piston is actuated to retract the ,movable mold section and to bring the parts into positions shown in Fig. 2.

For admitting metal to the mold recesses 5, 5 in the mold section 4, a gate opening 35 preferably, though not necessarily, shaped in the manner shown in Fig. 5. This gate opening terminates at its upper end in a conical recess or sprue 36 formed partly in the mold section 4 and partly in the mold section 1.

37 is a reservoir for molten metal mounted above the molds. The reservoir extends over the entire battery of molds and serves to supply all of them. It is-preferably a suitably lined metal tank provided with pins 37", 37 which are arranged to enter recesses 37 in thestationary mold section 1 and to be in this way entirely supported.

38, 38 are short pipes or nipples positioned respectively immediately above the conical recess 36 and connected at their upper ends of the, reservoir 37. At the upper end of each pipe there is a conical of the reservoir. 39 is a valve mounted at the lower end of 4 a bushing 41 of refractory material such as porcelain. The porcelain sleeve or bushing is held in place by meansof nuts 42. p

43 is a weight for holding the valve 39 normally in position. This weight can conveniently be formed by providing an iron shell and filling it with lead.

at its upper end, screwed into or otherwise secured to a bar 44 which isguided at its upper end in a bearing in a suitable framework 45.

46 is an approximately horizontal lever which is pivoted between its ends at 47 to a bracket on the cross bar 47 mounted on the The inner end of the lever 46 is connected by means of a link 48 with the bar 44 connected to the rod 40. The other end vertical'rod 49, which, at

- contact 58 with pipes 52, such as mechanism.

of the lever 46 is pivotally connected with a its lower end, ex- A collar 51 on the its downward movetends into a solenoid 50. rod 49 serves to limit ment.

From the foregoing description it will be obvious that when the solenoid 50 is energized the rod 49- will be moved downward and the rod 40 will bemoved upward to very quickly open the valve 39. As soon as the solenoid 50 is deenergized, the valve 39 will be quickly returned to its closed position by the weight 43.

It will be observed that the valve operating mechanism is mounted'entirely on the reservoir and that the whole-reservoir, to gether with the valves and operating mecha nism, can be readily removedat will. However, it will be understood that temporary braces or stays may be used without departing from the spirit of this feature of my invention.

The several mold sections are provided with means whereby water or other fluid can be circulated through them to keep them cool. Preferably the mold sections are con-v structed by being cast around asystem of indicated by dotted lines in Fig. 5. The end pipes of this system are connected by flexible tubing with a suitable source from which cold or cool water can be supplied. Fresh water can be used or, if preferred, the water can be run through a cooling system and used over again. When water is used in the operating cylinders it can, if desired, be passed from the cylinders through the cooling pipes.

Referring to Figs. 6 and 7, 53 represents the main sh ft for the electrical controlling his shaft can be driven in any desired way, but, for purposes of illustration, I have shown it driven from an electric motor 54 by means of gearing 55. The speed of rotation of the shaft 53'will depend upon the time required for the several operations of the casting machines, and can be adjusted in accordance with the conditions. -Mounted upon this shaft 53 are disks of which one is provided for each machine. For the sake of simplicity, I have shown in the drawings but one such disk, this being represented by the reference character 56. Each disk is formed of insulating material such as fiber and has mounted upon 1ts

periphery contact plates

57, 58 and 59 which are spaced from each other both longitudinally and circumferentially. Mounted upon one side of each disk are three

concentric metallicrings

60, 61 and 62. By means of suitable connections extending through the body of the disk, the contact 57 is connected with the ring 60, the the ring 61 and the contact 59 with the ring 62.

63 is a vertical plate for supporting a se K ries of brushes. For each disk there are horizontally pivoted to this plate at 64 three

brushes

65, 66' and 67, arranged to contact,

respectively, with the plates 57 58 and 59.

These brushes are properly insulated from thesupporting plate. Extending horizont-ally from the plate .63 and insulated therefrom are

brush arms

68, 69 and 70 arranged to contact, respectively, with the

rings

60, 61 and 62. The

brushes

67 and 7 O. atone disk are connected through a suitable source of current with the solenoids 50 for operat- 4 ing the valves of companion machines. The

brushes and 68 are connected through a suitable source of current with the solenoid 33 for moving the valves to open the molds. The

brushes

66 and 69 are connected through a suitable source of current with the solenoid 34 for moving thevalves to close the molds.

Separate disks and provided for the several sets of machines in order that each, may be controlled and separate brushes are stopped or started independently of the others. For providing this independent control manually controllable switches are 1nterposed between the disks and the solenoids.

While I have shown anddescribed the form of controlling mechanism, I now prefer itwill be understood that as to the details of this part of my invention there may be wide variation.

For starting the operation of the apparatus it may be necessary to warm the valves 39 by means of a gas flame or otherwise. Assuming that this has been done and that the reservoir 37 is filled with molten-metal, the operation will proceed as follows: As the contact strip 59 on the rotating disk 56 is engaged by the brush 67, the circuit is completed through the solenoids 50 and the rods 49 are jerked downward to quickly open the valves 39. This quick opening of the valves is of much importance as it prevents a thin stream of metal from first enteringthe valve apertures and the gates and becoming hardened. The length of the strip 59 is made such that the valves 39 will be held open just long enough to -fill the molds. As soon as the strip 59 passes 'onward to break the circuit through the solenoids 50, the valves. will be quickly shut by the weights 43. The contact strip or plate 57 is located at a position on the disk such that time'is allowed for the castings to cool before it is engaged by its brush 65. As. soon as it is engaged by the brush, the circuit is completed through the solenoids 33 and the parts are operated in the manner before described to bring the mold into the open position shown in Fig. 2 and to eject the castings. As soon as the molds are opened and the castings ejected, they are again closed by the contacting of the strip 58 with the brush 66 which completes the circuit through the solenoids 34, thus returning the parts to the position shown in Fig. 1.

' neath the machine A suitable receptacle can be provided befor receiving the castings as they are ejected.

here are a number of advantages incident to the provision of two movable. mold sections such as I provide, together with the two sets of operating devices therefor. By

providing the two molds and the two motors,

and by arranging them to-act simultaneously in opposition to each other, I avoid subjecting the central mold section to any severe strains. The movable sections contact with 7 it on opposite sides at t e same time and with equal pressure, and the result is that the actions of the two-movable sections balance each other so that the stationary section is not subjected to any forces tending to move it.. By providing the two-movable to cooperate therewith to form molds, means for supplying molten metal to V with a plurality sections in combination with the central stationary section, I am enabled to make use of a single reservoir for the molten metal. The simultaneously opening Valves 39, 39 admit the molten metal to both molds simultaneously.

What I claim is:

1. In a machine for makingmetal castings, the combination of a stationary. support, a central mold section secured to the support, two movable mold sections at opposite sides of the central section and adapted two completethe molds when the movable sections are in operative positions, two separate motors connected respectively to the two movable sections, and means for controlling the motors to cause them to simultaneously move the .movable mold sections away. from or toward each other out of or into operative positions. 11 a machine for maklng metal cast ings, the combination of astatlonary suppositions. me for making metal, castd each provided of spaced interior passages for a cooling fluid, the movable sections be ing adapted .to cooperate with the central adapted to cooperate I ings, the combination of voir to the two sections to form two'complete molds, means for supplying molten metal to the molds When the movable sections are in operative positions, means for supplying cooling fluid to the passages in the three sections, and means for moving the said movable sections away from and toward the central section.

In a machine for port, a central mold section secured to the support, two movable mold sections at opposite sides of thecentral section and adapted to cooperate therewith to form two complete molds, the mold vided with recesses adapted to form (when the movable sections are in operativepositions) two separate gate openings, one for each mold, means for supplying molten metal simultaneously in tWo separate streams to the two gate openings, and means for moving the said movable sections away from and toward the central section.

5.In a machine for making metal castings, the combination of a stationary support, a central mold section rigidly secured to the support, two movable mold sections at opposite sides of the central section and adapted to cooperate therewith to form two complete molds, the said movable sections aving apertures extending in the direction of movement, unitary guide pins extending through the fixed moving the 6 In a machine for making metal castings, the combination of a stationary central mold section, two movable mold sections at opposite sides of the central section and therewith to form two complete molds, means for simultaneously moving the side mold sections toward and away from the central section, a reservoir for molten metal mounted in fixed relationship to the said'central mold section, and valves foradmitting metal from the reservoir to the two molds simultaneously when the movable'sections are in operative positions.

'7. In a machine for making metal casta stationary central mold section, two movable mold sect1ons at opposite sides of the central section and adapted to cooperate therewith to formtwo complete molds, means for simultaneously moving the side mold sections toaway from making metal cast-' .ings, the combination of a stationary supsections being pro-'- ward and away from the central section, a reservoir for molten metal mounted 1n fixed relationship to the central mold section, valves for admitting metal from the resermolds simultaneously, and

move into operative 8. In a machine for making metal castautomatically acting means for opening the said valves when the said side sections positions.

ings, the combination of a stationary central mold section, two movable mold sections at opposite sides of the central section and adapted to cooperate therewith to form two complete molds, means for simultaneously moving the side mold sections toward and away from the central section, a reservoir for molten metal mounted in fixed relationship to the central mold section, valves for admitting metal from the reservoir to the two molds simultaneously, and

automatically acting means for successively moving the side mold sections into operative positions, opening the said valves, closing the said valves and moving the said side ,mold sections out of operative positions.

9. In a machine for making metal casiings, the combination of a stationary central mold section, two movable mold sections at opposite-sides of the central section and adapted to cooperate therewith to form two complete molds, meansfor simultaneously moving the side mold sections toward and away from the central section, a reservoir for molten metal mounted in fixed relationship to the central mold section, valves for admitting metal from the reservoir to the two molds simultaneously, and automatically acting means for successively moving the side mold sections into operative positions, opening the said valves, closing the said valves, moving the side mold sections out of operative positions and ejecting thecastings from the said molds,

10. In a machine for making metal castings, the combination of a stationary support, acentral mold section rigidly secured to the support, two movable mold sections at opposite sides adapted to cooperate therewith to form complete molds, means for simultaneously moving the side mold sections toward and away from the central section, a reservoir for molten metal mounted entirely on the said fixed mold section, and valves for admitting metal from the reservoir to the molds when the movable sections are in operative positions.

11. In a machine for making metal castings, the combination of a stationary support, a central mold section rigidly secured to the support, two movable mold sectlons at opposite sides of the central section and adapted to cooperate therewith to form complete molds, means for simultaneously moving the side mold sections toward and away from the central section, a removable reservoir for molten metal designed to be heldon the said fixed mold section by gravity alone, inter-engaging means on the mold sect1on and the. reservoir for preventing lateral movement of the reservoir, and valves of the central section and for admitting metal from the reservoir to the molds when the movable sections are in operative positions.

12. In a machine for making metal castings, the combination of a stationary support, a central mold section rigidly secured to the support, two movable mold sections at opposite sides of the central section and adapted to cooperate therewith to form comat opposite sides of the central section and adapted to cooperate therewith to form complete molds, means for simultaneously moving the side mold sections toward and away from the central section, a removable reservoir for molten metal designed to be held on the said fixed mold section by gravity alone, and valves and .valve operating devices mounted entirely on the reservoir and removable with it from the mold sections.

14. In a machine for making metal castings, the combination of two mold sections adapted when in contact to form a complete mold, means for moving one of the sections away from and toward the other, the said movable section being provided with a small recess adjacent and communicatingwith the casting space and with an aperture smaller than the recess extending into the said recess from the outside of the section along linesparallel to the lines of movement of the section, a pin slidably mounted in the recess having a head adaptedto lie in and fill the recess,'a collar on' the pin outside of the mold section, a spring interposed between the mold section and the'collar for normally holding the pin in its outermost position with the head'in the recess, means for sup-.

plying molten metal to the'mold when the sections are in contact, and an sitioned to be engaged by the collar on the abutment popin as the mold section is moved whereby the said head is movedi'nto the eject the casting therefrom.

15. In a machine for casting metal ers or other apertured metal articles, the combination of two mold sections adapted when in contact to form a complete mold, a pin slidably mounted in an aperture in one of the said sections and normally extending into the casting space for forming the aper-' ture in the casting, .an ejector pin slidably mounted in another aperture in the last said section and normally positioned with its incasting space to washner end outside the casting space, means for sections are 'the pin can be moved supplying molten metal to the mold when the sections are in contact, means for moving one of the mold sections relatively to the other, and means'dependent on the movement of the mold section for moving the first said pin to withdraw it from the casting space and for moving the second said pin to force it into the casting space thereby ejecting the casting.

16. In a machine for casting metal -wash-' ers or other apertured metal articles, the combination of two mold sections adapted when -in contact to form a complete mold, a pin slidably mounted in an aperture on one of the said sections andnormally extending into the casting space for forming the aperture in the casting, means for limiting the sliding movement of the pin, in both directions with respect to its mold section, means connected with the pin whereby with respect to the moved bodily with the from the other section, plying molten metal to in contact.

n a machine for making metal castpin toward or away and means for supthe .mold when the ings, the combination of two mol'd se'ctions adapted when in contact to form a-complete mold, means for su lying molten metal to the mold when the g a cylinder, a slidable p'ston inthe cylinder connected to one of t e mold sections to move it with respect to the other, means for supplying motive fluid means to one end of the cylinder and the mold, means a cylinder, a slidablecpiston in the cylinder other for connecting it to. the other, and means acting, first, to simultaneously move both valves to open one'and-close.the-other and thereby move'the piston to bring the mold sections into contact, second, to admit a quantum of molten metal from the supply means to the mold, and third, to simul connected to one of the 'mold move it with respect to the other, means for supplying motive fluid under I valves one for connecting the fluid 'supply pressure, two

means to one end of the-cylinder and the other for connecting it 'to the other, two

. gear wheel-s connected respectively to the valves, a slidable bar-having two sets of rack teeth engaging respectively with the teeth of? the gear wheels, and means acting, first, to move the bar in one direction to turn 'or closing. the one .and automatically acting tlonsare in-contact, v

"supply means to the mold when the mold under pressure, we: 'valves one for connecting the fluid supply the gear wheels and open one valve and close the other, whereby the piston is moved to bring the mold sections into contact, second, molten metal from ings, the combination of two mold sections for making metal cast-- adaptediwhen in contact to form a complete mold,

means for supplying molten metal to the mold when the sections are in' contact, a cylinder, a slidable piston in'the cyllnder connected to one. of the mold sections to move it with respect to the other, means for supplying motive fluid under two valves one for connecting the fluid supply means to one-end of the cylinder and,

the other for'connecting it to the other, two gear wheels connected respectively to the valves, a slidable bar having two sets of rack teeth, engaging respectively with the teeth of the gear wheels, two solenoids surrounding the barfor moving the bar in one direction when one 'is energized and in the other direction when .the other is energized, thereby opening one valve and closing the other and opening the other,

means for admittmg a quantum of molten metal from the sections .are brought into' contact under the influence of one of the said solenoids.

20. ings, the combination of adapted when in contact to form a complete mold, means for supplying molten metal to the mold when the sections are in contact, a cylinder, a slidable piston in the cylinder supplying motive fluid under valves one for connecting the fluid supply means to one end of the cylinder and the other for connecting it 'to the other, two solenoids, means for opening one valve and of one ofthe said solenoids.

' 1 In a machine for making metal castings, the-combination of two mold sections a apted when in contact to form a complete mold, means for supplying molten'metal to the mold when the sections are in contact, a cylinder, a slidable piston in the cylinder brought into contact under the influence pressure,

In a machine for makingmetal casttwo mold sections pressure, two

adapted when connected to one of the mold sections to move it with respect to the other, means for supplying motive fluid under pressure, two valves one means to one end of the cylinder and the other for connecting it to the other, electrically controlled means for opening one valve and closing the 'other and for closing the one and opening the other, whereby the piston is moved to bring the movable mold section into or out of contact with the other section, and. automatically acting means for admitting a quantum of molten metal from the supply means to the mold when the mold :sectionsare brought into contact under the influence of the said electrically controlled means.

22. In a machine for making metal cast-- ings, the combination of two mold sections in contact to form a complete mold, means for supplying molten metal to the mold when the sections are in contact, a motor for moving one away from or toward the other, means for supplying power to the motor, and an electrically controlled device supplemental to the motor and supplemental to the means for supplying power thereto for controlling the operation thereof. I

23. In a machine for making metal castings, the combination of two mold sections adapted when in contact to form a complete mold, electrically controlled means for movingone' of the sections away from or toward the other, a. reservoir for molten metal above the moldsections, a valve for admitting metal from the reservoir to they mold sections, electrically controlled means for opening the valve, and a common automatically acting controller for the said mold section moving means and the said valve moving means.

for connecting the fluid supply sections together.

toward the other, of the sectionscessively to 24. In a machine for making metal castings, the combination of two mold sections adapted when in contact to form a complete mold, electrically controlled means for moving one of the sections away from or toward the 0ther, a reservoir for molten metal above the mold sections, a valve for admitting metal from the reservoir to the mold sections,'electrically controlled means for opening the valve, a common automatically acting controller for the said mold section moving means and the said valve moving means, the said controller acting to open the valve, to close the valve, to separate the mold sections and to bring the mold 25. In a machine for making metal castthe combination of two mold sections adapted when'in contact to form a complete mold,electrically controlled means for moving one of the sections away from anda reservoir for molten metal, a valve for admitting molten metal from the reservoir to the mold' when. the sections are in contact,-electrically controlled means for operating the valve, a rotatable controlling mechanism provided with means for'mal'ring and brealdng connections succause the movable section to move into contact with the other section, to cause the valve to open, to release the valve to permit it to close, and to cause the movable section to move away from the other section, and a motor for driving the'controlling mechanism continuously.

In testimony whereofI aflix my signature, in presence of two witnesses.

. a UL SMENOUQJ-L Witnesses: G. W. ADAMS,