US1485569A - Casting machine - Google Patents

Description

March 4 1924 F.'SCHRODER 'CASTING MACHINE Filed May 23,1919.

6 .Sheets-Sheet 1 F. F. scHRoDER v CASTING MACHINE Mam 4 m4., f

Filed May 25, 1919- Q sheets-sheet 2 arch 4 1924., 3,485,569-

F; F. scHRoDi-:R

CASTING MACHINE der [ff] s 6 Sheets-Sheet 4 cAsTING MAHYINE F. F. SCHRODER Filed May 23, 1919 *Maxrch 4 B924.,

Mmm 4 wz@ M8556@ y F. F. SCHRODER CASTING MACHINE Filed May 2s, 1919 e sheets-sheet 5 Mmchlw24@ v y f L485969` F. F. SCHRODER CASTING MACHINE Filed May v2, 1919 6 Sheets-Sheet 6 Patented Mar. d, llQfZl.

UNITE@ STATES battait@ earanroeeuea.

FR@ 1F. SCHRODER, OF CHICAGG, ILLINOIS, ASSIGNOR T0 l= ,'1

' CCAGO, ILLINOIS.

CASTING MACHINE.

Application led May 23, 1919. Serial No. 299,341.

To all whom t may concern: Beit known that I, FRED F. SCHRODER, citizen of the United States, residing at Chicago, in the' county of Cook and State of Illinois, have invented a certa-in new and useful Improvement in Casting Machines, of which the following is a full, clear, concise. and exact description.

My invention relates to machines which operate upon molten material suchas metal alloys to produce castings and has a num ber of objects and advantages in View. Machines of this class have employed reciprocable heads for operating parts of the molding mechanism such as dies supported upon reciprocable shafts and elsewhere unsupported with the result that the shafts would bend and place the die mechanism out of register with the nozzle of the'melting pot. To overcome this objection I provide a supplemental support upon and with relation to which the head is movable when actuated.

In accordance with my invention a lever is provided upon the head for effecting movement of a carrier for the die or other part of the molding mechanism which carrier is supportedupon the head to move transversely of the direction of reciprocable movement of the head. Cam mechanism engages this lever and mechanism is also provided for moving the head with relation to the cam and for moving the cam with relation to the head.

The shaft which carries the head is desirably made hollow. to form a sleeve and a rod is disposed within the sleeve that is reciprocable with respect thereto to operate a sprue closer or other element.

sIn accordance with another feature of the invention a core or other element of the molding .mechanism is provided upon a re- `ciprocable carrier which is operated by a lever joined with the carrier through a part that engages the carrier and vis movable transversely of the direction of movement thereof. This construction permits th'e free operation of the lever without causing the bending or breaking of parts which hitherto occurred.

The invention has for its further object the provision of mechanism for automatically stopping the operation of the machine at the conclusion of each cycle of operations thereof or at any selected place within a cycle of operations. 'Ihe attendant would be required, by manual operation, to initiate a succeeding cycle of operations or to effect a continuation of an automatically interrupted cycle of operations, an arrangement which avoids the possibility of injury to the attendant and damage to the machine.

There are other features and characteristics of my invention which will be hereinafter set forth.

I will explain my invention more fully by reference to the accompanying drawings in which Fig. 1 is a side view of the machine constructed in accordance with the preferred embodiments of the invention.; Fig. 2 is a plan view of the machine; Fig. 3 illustrates, rin perspective, two dies of a form selected to make ,the casting of a. particular design, this figure also illustrating the apparatus oomplemental to the dies; F ig. 4 is a perspective view illustrating a single form of casting which may be made by the machine which is adapted to the formation of castings of other designs; Fig. 5 is a sectional view on line 5 5 of Fig. 2.; Figs. 6. 7, 8, 9. 10 and 11 are sectional `views respectively taken on lines 6 6, 7 7, 8 8, 9 9. 10 10, and 11 11 of Fig. 1; and Fig.

12 is a sectional view on line 12 12 of.

Fig. 11.

Like parts are indicated by similar characters of reference throughout the diierent figures.

The machine illustrated operates to mold liquid material, such as' molten white metal, which solidiies in its molded form while being suiiiciently cooled in the machine.

Any suitable means may be employed for liquefying the metal or other material which is to be molded, the melting apparatus illustrated forming the subject matter of mv -co-pending application Serial. No. 307,564,

filed June 30, 1919. This melting ap aratus is inclusive of a. melting` pot 1 w ich is provided with a flange 2 also to constitute it a lid for the fire box 3 that furnishes the heat to melt the metal or metal mixture placed within the pot as indicated at 4. By governed means to be described, admission of molten material may occur from the melting pot 1 to the receiving chamber 5 which is preferably integrally formed with or is otherwise constituted a part ot the pot and lid structure 1-2. This receiver has its bottom portion preferably .extending belowthe bottom of the pot to be within the lire box to be subject to the heat thereoi so that the metal passing fromI the pot to the receiver will not be cooled but in fact will be hotter than the metal in the pot, the metal being raised to the nal degree of its heat wit-hin the receiver to put it in just the molten condition required for proper casting. The inverted xtT-'shaped passage 6, Fig'. 10, establishes communication between the melting pot and the receiver. The inner end of the horizontal branch of the passage 6 communicates with the interior of the receiver and the outer end ot this horizontal branch is closed by a screw plug 7 which maybe removed to clean the passage.

Hitherto the plug 7 was omitted and when the passage would be plugged up by metal freezing therein the pot structure would have to be discarded.

The upright branch of the passage 6 is normally closed by a reciprocable valve 8 `guided in its movement by the guide 9 projecting laterally froml the receiver. The stem 10 ot' the valve pivotally depends trom the ears 11 at the lower side of the lever l2,

Figs. 1 and 10. This level is ulcrumed, at one end, upon the upright 13- carried by the rim of the pot 1 and is connected at its other end to the actuating rod 14 that depends from the lever. This rod is connected at its lower end with one end of the intermediately pivoted rocker arm 15 whose other end carries a cam roller 16 held in engagement with a cam 17 by the spring 18 which presses the rocker arm and the cam roller thereon toward said cam. A shalt 19 carries the cam 17, the rotation ot this shatt having suitable relation to other operations oi the machine as will appear. -Whenthe cam roller engages the outer segment of the cam the valve 9 will be closed through the intermediation of the described.v parts between the cam roller 16 and the valve- 8.' When the cam roller is upon the inner segment ot the cam the valve 8. will be opened, the relative duration of the open and closed condition of the valves being determined by the peripheral -lengths of the outer and inner segments of said cam. The shaft 19e also carries a cam 20 which ris engaged by a cam roller 21. This cam rolleris mounted upon an intermediate portion of the arm/'22 to which a spring 23 is attached to press the arm/upwardly and thereby maintain the 1engagement of thecam roller'21-with the cam 20. A link 24 connects the outer end of the arm 22 with the arm 25 fixed upon the stem the die structure.

menace ing in communication at one end with a suitable source ot air under pressure diagrammatically indicated at 28 'and at its other end with the to portion of the receiver 5. The two cams l? and 20 are so related that the valve 26 will be closed when the valve 8 is opened and vice versa.. When the valve "ritt 26 is opened it serves to etlect the forcible ejection ot a portion of the molten metal within the receiver through the discharge nozzle passage 29.

The body ot molten metal that is illustrated within the receiver 5 is shown small in quantity in order that the nozzle passage 29 might more clearly appear in Figs. 5 and 10 and particularly in the latter ligure. Normally the molten metal within the receiver has the same upper level as the metal within the melting pot l.

Compressed air is admitted through the pipe 27 for the purpose or effecting the ejection of sutiicient metal from the receiver through the nozzle passage 29 tothe molds which are to define the shape of the casting. The upper portion of the receiver is downwardly dared to permit the air .to expand after it has lett the pipe so that it will titi strike the metal uniformly upon the top surface thereof rather than in a more direct and limited stream which would be the case if the receiver were not tapered as illustrated. The air thus exerts uniform pressure upon the top ot" the body of molten metal within the receiver to edect the uniform expulsion of the metal through the nozzle passage. The nozzle passage., in turn, is tapered trom its receiving end toward its outlet end whereby the molten metal is more compressed or compacted at the discharge end ot the nozzle, the result being that the metal as it enters the die is prevented from being of a spongy nature.

MNE

lll

Any suitable means may be employed for which is oit a form to suit the casting that is to be made, one form ot mold structure being indicated in Fig. 3 .where it is illustrated as comprising two dies 3l, 32. A sprue 33 is formed in either or both dies and adords passage from the nozzle to the interior of lWhen/sutiicient molten `metal has been admitted to the die structure" to form the casting the sprue is closed by the timely actuated sprue closing portion I34:,

Meana@ operated as hereinafter set forth. This element 34 is not required in certain types of casting but, when employed, may vary according to the casting and the mold that produces it. The dies 31 and 32 are relativedie and the replacement thereof by a die in another design for another type of casting. The die 32 is likewise secured to a die carrier 37 by bolts 38. The die carriers are provided with vertical extensions 39 and 40.

The extensions 39 are in tongue and groove connection with the head 41 as are also the extensions 40. rllhe die carriers and 37 are thus vertically or otherwise movable transversely of the axis of the machine at which the opposing faces of the dies meet and therefore transversely of the direction of movement of the head. 1n the embodiment of the invention illustrated the lower die carrier 37 is :tixed in a position in which the sprue 33 in the lower die will be in register with the outlet end of the nozzle passage 29, this die carrier being secured in the selected position by means of the bolts 42 /which pass through the lower die carrier into clamping engagement with the head 41. Timely operated cams 43 are reciprocable longitudinally of the axis of the machine. Cam levers 44 carry cam rollers 45 which operate in the cam grooves 46 in the reciprocable cams 43. Said cam levers are intermediately fulcrumed at 47 upon the head 41. These cam levers are desirably received in slots 48 in the head 41 to confine the cam levers to their planes of oscillation.

Each 'cam lever has a forked formation 49 at its forward end between the branches of which a nut is received. lEach branch of each fork 49 is also of forked formation as indicated at 51. Each nut 50 is provided with trunnion extensions 52 received between the branches of the forks 51 that are y shaped to adord trunnion bearings for said trunnion extensions. After the trunnion extensions are slipped into their bearings the bolts 53 are adjusted to prevent the branches of the forks 51 from spreading. A bolt 54 is in threaded connection with the upper nut 50 and is clamped at its lower end to the crossbar 55 by means of the nuts 56, Fig. 6. Bolts 57 are clamped at their upper ends to the ends of the crossbar 55 by means of the nuts 58. The lower ends ofthe bolts 57 are in pivotal connection with the die carrier 35 as indicated at 59. As previously stated, the lower die carrier 37 happens to be bolted in positionbut it may be4 assembled with bolts that are similar to the bolts) 57, on which account it is provided with trunnion sockets 60 (Fig. 9) for trunnion pins similar to trunnion pins 59 and also with slots 61 for receiving the ends of bolts carrying such trunnion pins. The cams 43 are'mounted upon the common carrier 62 by means of which said cams are reciprocated in unison. When the ca m carrier 62 is drawn rearwardly the forked ends of the levers 44 are moved toward each other with the result that the upper die carrier 35 is moved toward the axis of the machine by the operation of the upper lever 44 until the lower face of the die 31 meets the upper face of the die 32 to close the mold space except for the sprue 33 whereupon the molten metal is exuded from the receiver 5 through said sprue to an extent suiiicient to form the cast object whereupon the sprue closer 34 is actuated. cam carrier 62 is now moved rearwardly to lift the die 31 to permit the removal of the cast object. Although in the form of the invention illustrated the lower die carrier 37 is not adapted to be moved by the operation of the lower lever 44 (it being the case however that it may be thus movable if the work to be produced requires it) that occurs simultaneously withthe operation of the upper lever 44, yet the movement of this lower ever may be employed to govern the position of a core portion 63 if such be employed. 1f there be no core portion, and if the lower die carrier 37 is fixed, then the lower lever 44 may be removed. The core portion 63 is projected into the mold cavity y the lower lever 44 when the cam carrier 62 is in its rear position to form the cored hole 64 in the casting 65 which is produced by the selected dies of the machine. When the casting has been formed the core 63 is withdrawn at the same time the upper die carrier 35 is lifted, the movements of the parts 63 and 35 being of equal extent but in opposite direct-ions. Where the lower lever 44 serves to adjust the position of the core 63 instead of the lower die carrier 37, ll desirably employ the bracket 66 which is attached by bolts 67 to the lower die carrier 37. This bracket carries an upright sleeve 68 in which a plunger or reciprocable core carrier 69 is guided. Fllhe upper end of this plunger has a threaded bore which receives the threaded stern of a T-headed bolt 70 to the head of which is secured a core clampingbar 71 by means of bolts 72, the head 73 of the core 63 being clamped between the bar '71 and the bolt head 70. By removing the bar 71 the core 63 may be replacedl by another where the casting requires a different shape. The number of cores 63 may also be varied. The plunger`69 has adovetailed groove 74 in its bottom side. A block 75 has a dovetailed side which is in slidingengagement with the dovetailed groove 74, the path.' of sliding movementv of the block 75 being parallel with the axis of the machine and transverse of the direction of movement ofthe coreY The lli

carrier. The upper end of the bolt 7 6 is in pivotal connection with the bottom side of the block 75. This bolt is in threaded en-l gagement with the nut upon the lower lever dal.

The cam carrier 62 may also carry tweed ditional cams 77, Fig. 8. The cam levers 78 carry cam rollers 79 which operate in the cam grooves 80 in the cams 77. Said cam levers are fulcrumed upon the pins 81, carried upon the head d1, which pins are receivable in the holes in which they are shown or in supplemental holes 82 if the position of the ranges of operation of these cam levers is to be modilied., The holes f82 that are shown in llig. 8 as being unoccupied by the pins 81 are occupied by these Lins when the dies are smaller than those illustrated. These cam levers are clamped to their pins 81 by set screws 83 to confine the cam levers 78 to their planes of oscillation. Each cam lever has a forked formation 84. As the invention is illustrated the cam lever 78 appearing lowermost in lli 8 has no work to perform because the pro uction of the casting illustrated in Fig. d does not require any operation of this particularlever 78. The remaining cam lever 78, however, is connected up to perform the function of regulating the core 85 which projects' into the mold cavity to produce the cored opening 86 in the casting illustrated in lig.

4. As is the case with the core 63, the core v85 varies with the work uto be performed or may be omitted or have its formation modified and the number thereof may bevaried. @n this account the head of the core 85 is removably bolted between the clamping plate 87 and the bolt head 88 which is connected with the bolt shank 89 by means of the hall and socket, or other universal joint, 90, Fig. 9. The shank of this bolt freely slips through a swivel block 91 having trunnion ins 92 by which it is mounted in the forlre is in ivotal connection with corresponding cam ever 78. llt may be desired, because of the preferably fixed nature of the cam slots 80, to allow said cam lever certain motion before it imparts motion to the core 85. The desired lost motion between lrthe core 85 of the corresponding cam lever 78 is adjustably determined by the adjusting nuts 94, the adjustment edected being maintained by the set nuts 95. lf no lost motion is desired the nuts 94 may both be brought into holding engagement with the swivel block 91.

The reciproeable horizontal supporting sleeve or shaft 96, Fie. 5, is slidably mounted to move longitudinally of itself in the upper end of an upright support 97 carried upon the main base 98 of the machine. This sup ort has an opening 99 therethrough ig.. 7) through which the4 lower end of the link 93 whose other end ansehe@ lcam lever 4M extends and is free to move,

the lower cam d3 being lalso free to move in this opening 99. The reciprocable cam carrier 62 has a bore which is co-arial with the machine and which is in sliding t with the sleeve 96. A. piston stem or recip rocable rod 100 is in sliding fit with the bore of the sleeve 96. This stem has its forward end 101 reduced and threaded to support a `detachably applicable head 102 to which may be bolted a clamping plate 103, the rear and head end of the sprue closer 34 bein removably received and clamped in posi tion between the head 102 and the clamping plate 103 to permit of the substitution of other formsof sprue closers or the total re moval thereof according to the nature of the casting to be roduced.

The operation of the machine is as follows The reciprocable sleeve 96 and the head 11 iixedly secured thereto and the reciprocable cam carrier l62 are operated in orderly sequence by the camcylinder 1041 The sleeve 96 carries a cam roller 105 receivable in the cam groove 106 of the cylinder 10ft. The cam carrier 62 carries a cam roller 107 receivable in a cam groove 108 in the cylinder 104. The cam grooves 106 and 108 are so shaped and related and the cam on are advanced first to close the mold 31,

32 and position the coreppins 63, 85 within the moldlcavity whereafter the cam carrier 62 and the head L11 are advanced in fixed relation to each other to bring the front faces of the dies 31 and 32 against the discharge end ,of the discharge nozzle 29 of the receiver 5. `When this adjustment has been edected the valve 8 is closed and immediately thereafter valve 26 is opened to effect the forcible passage of metal or other molding material in liquid form. through the sprue 33. After the mold cavity has been filled the sprue closer 34, if employed, is actuated by moving the piston stem 100 forwardly, a result which is desirably accomplished, either automatically or manually, by the admission of air under pressure through the pipe 109 (Fig. 5) into the rear end of the cylinder 110 and behind the piston 111 in said cylinder, the piston stem 100 carrying said piston. t

The next step in order is the withdrawal of the sprue closer 34 which is accomplished by admitting air under pressure through the pipe 112 to the front side of the piston .v

Maase@ the cam carrier 62 and the head 41 with these elements in lixed relation, the hub of the head 4l then being brought to rest against the front face of the support 97. During this rearward movement of the cam carrier 62 and head 41 the cam levers 44 and 78v the mold and withdraw the corel pins 63 and 85 whereafter the casting 65 (Fig. 4), which is now sufficiently cooled, may be removed. In order that the head 41 may not be turned as it is reciprocably moved it has spline or key engagement with a portion fixed with respect to the base 98 of the machine, the preferred construction being illustrated clearly in Figs. 5, 6 and 7 where I have shown two splines or keys 116 u on the bottom of the head 41 and in sli ing engagement with the key or splineways or supplemental support 117 carried upon the basel of the machine, the parts 116 and 117 extending longitudinally of and being parallel with the axis of the machine so that the l head 41 is limited to rectilinear movement splinevvays 11 while at all times in a vertical -position and without liability of being turned, it being understood that if the head is turned that the machine will be thrown out of adjustment and will become inoperative. 'llhe head 41, being slidably mounted upon the does not have any depressing effect upon the sleeve 96 which latter would be the case if said head did not have such a sliding support in addition to the support aorded by the sleeve 96.

rllhe operation of the valves 8 and 26 is controlled by mechanism operating in definite relation to the cam cylinder 104. .This cam cylinder, which is turned by any suitable means as for example the means hereinafter with a spur gear 120 upon the shaft 19. As

hitherto set forth this shaft 19 controls the operation of the valves 8 and 26, the gearing 119 and 120 so timing the rotation of the shaft 19 in relation to the rotation of the cam cylinder 104 as to cause the operation of these valves in orderly sequence with respect to the remaining operations of the machine.

5Any suitable mechanism may be employed for driving the shaft 118, that illustrated most clearly in Figs. 1, 11 and 12 being preferred. This shaft is journaled atits forward end in a bearing 121 carried by a side of'the upright support 97. 1t is journaled at its rear end in a bearing 122 c arried upon the upright support 123. This shaft is also supported at an intermediate place in the bearing 124 upon the upright support 125,'

the support 125 also serving to slidably supportthe sleeve 96 near the rear end of this sleeve.

l have illustrated a belt driven pulley 126 as one of the means for driving the shaft 118. The hub 127 of this pulley .is free to turn upon and with respect to the sleeve 128 which itself is free to turn upon and vwith respect to the shaft 118. llhe sleeve 128 is coupled at 129 with the pinion 130 which is free to turn upon and with respect to the shaft 118. YThe sleeve 128 is provided with a flange 131 which vcarries a split band 132 which may be expanded by a cam133 to bring it into engagement with the inner peripheral surface of the pulley 126. rlhe cam 133 is mounted upon a shaft 134 which may be turned by a clutch linger 135 to expand the band. The linger carries a knob 136 that is engageable bythe clutching cone 137 for the purpose of rocking the linger to a ply the clutch band to the pulley. 'l e clutching cone 137 is slidably mounted u on the shaft 118 and may be moved in eit er direction along the same by the clutch lever 138. When the band 132 is applied to the pulley 126 the pinion 130 turns with the sleeve 128 which turns with the pulley when I the clutch is applied. The inion 130 is in mesh with a spur gear 139 eyed upon the by the upright support 125. pinion 142 is also keyed upon the shaft 140 and is in mesh with the spur gear 143 fixed upon the shaft 118 which is, through the intermedia- -tion of the gearing described, rotated at a redction in the speed at which the pulleyv 'nuts 148 on the rod 145 at their outer ends.

The lever 146 is provided with a handle 149 whereby the rod 145 may be moved in either direction to effect movement of the clutching cone 137. The lever 146 has an extension 150 which carries a roller 151 whose plane of ,rotation is in the plane of rotation of the cam 152 upon one end of the cam cylinder 104. The cam 152 will serve automatically to engage the roller 151 when the cam carrier 62 is`withdrawn to its rearmost position whereupon the rod 145 is operated to release the clutch to stop the machine, it being necessary to effect the manual adjustment of the clutching cone 137 for the ensuing operatlon of the ma..

chine for the production of the next casting.

By reason of the cam 152 and the lever extension 150 danger of injury to operatives is avoided, it having hitherto happened that 95 shaft journaled in a bearin 141 carried l they would some times have to throvv the machine out ot gear upon the completion ci a cycle ot its operationa lin order to start the machine again it is only necessary to svving the handle le@ in a counter-clock`= vvise direction, the lever le@ then serving to move the rod M5 to the ri ht through the intermediation ot the right and spring @their cams similar to cams 31.52 may be placed upon the cylinder 104i to discon neet the machine from its drivingmeans at various points in its cycle oiE operations, it euch should be deemed necessary.

The rod l0@ is shovvn as governing the sprue closer 3d, the carrier 69 is shovvn as being in controlling relation to the core 63, and one oit the levers 78 is shovvn as being in actu= ating relation to the core 85. llt should be understood, however, that said elements 100, 59 and 78 may be employed 'for other op erations than those specitically illustrated.

'While ll have herein shown and partieularly describedthe preferred embodiment ont my invention ll do not fvvish to be limited to the precise details ot construction shown as changes may readily be made Without departing from the s irit of my invention, but having thus escribed my inven tion li claim as nevv and desire to secure by Letters Patent the following:-

l.. lin a casting machine; the combination vvith a die carrier; oiE a reciprocable head upon vvhich said die carrier is supported to move transversely ci the direction cit reciprocable movement oir the head; a lever upon the head connected vvith the die carrier to effect die movement; cammechanism rior etiecting operation oi? the lever; and mechanism iior moving said head and "for, moving said cam mechanism., Y

2. lin a casting machine; the combination with a die carrier; oir a reciprocable head upon which saiddie carrier is supported to move tranversely of the direction of reciprocable movement oit the head; a lever pivoted between its ends u on the head and connected at one end vvit the die carrier to edect die movement; cam mechanism engaging the other end oit' the lever igor eectmg operation oi the lever; and mechanism tor moving said head and for moving said cam mechanism, i

3. lin a casting machine, the combination with a die carrier; ot a reciprocable head upon which said die carrier is supported to move transversely of the direction ci reciprocable movement of the head; a lever u on the head connected with the die carrler to edect die movement; cam mechanism ior edecting operation of the lever; mechanism for moving said head and tor movin said cam mechanism; and a Supplemente support vupon and vvith relation to which the head moves when actuated.

4l. ln a casting machine; the combination menace with a die carrier; oir a reciprocable head upon which said die carrier is supported to move transversely of the direction ot reciprocable movement of the head; a lever pivoted between its ends upon the head and connected at one end with the die carrier to edect die movement; cam mechanism-engaging the other end of the lever for edecting operation of the lever; mechanism for moving said head; and a supplemental support upon and with relation to which the head moves when actuated.

5.. lin a casting machine; the combination with a die carrier; of a head; mechanism carried by the head for electing reciprocable movement of the die carrier trans versely oi the axis of the machine; a sleeve carrying the head; a rod movable in and with respect to the sleeve; and a sprue closer carried by the rod.

ii. ln a casting machine; the combination vvith'a die carrier; oi a head; mechanism carried by the head for etiecting movement of the die carrier transversely of the axis of the machine; a shaft carrying the head; a support in which the shait is adapted to move longitudinally of itself to permit movement of the head; and mechanism for operatin the die moving mechanism upon the headg, said support having an opening accommodating the second aforesaid mechanism.

7. 'ln a casting machine; the combination vvith a die carrier; oi a head; a lever carried b the head for edecting movement of the die carrier transversely of the axis oi the machine; a shaft carrying the head; a support in which the shaft is adapted to move longitudinally of itself to permit movement of the head; and cam mechanism for operating the die moving lever upon the head, said support'having an opening accommodating the cam mechanism.

' 8. ln a casting machine; lthe combination with the dies thereof; of means for edecting relative movement of the dies; a reciprocable core carrier; a swinginglever tor effecting reciprocable movement of the core carrier; and a connection between the core carrier and the lever including a part engaging the core carrier .and movable transversely of the direction of movement of the core carrier.,

9. lin a casting machine; the combination with the dies thereof; of moans for cilecting relative movement of the dies; a reciprocable core carrier; a swinging lever for effecting l reciprocable movement of the core carrier; a

bolt trunnioned upon the lever; and a block in engagement With the core carrier to actuate the same and movable transversely oi the direction of movement of the core carrier, saidbolt having swivel connection with said block.

10. lin a casting machine; the combination insane@ carried by the head for ed'ecting reciprocable movement of the die carrier transversely of lill the axis of the machine; a sleeve carrying the head; and a rod .within and movable withy respect to the sleeve tor actuating a part of the mechanism of the machine.

11. lin a casting machine, the combination with the die casting mechanism thereof; of a reci rocable carrier for a portion of said mec anism; a swinging lever for ed'ecting reciprocable movement of said carrier; and a connection between the carrier and, the lever including a part engaging the carrier and movable transversely of the direction of movement ot the carrier.

l2. ln a casting machine, the combination with the die casting mechanism thereof; of a reciprocable carrier; a swinging lever for edecting reciprocahle movement of said carrier; a holt trunnioned upon the lever; and a hloclr in engagement with'the carrier to actuate the same and movable transversely of the direction ot movement of thecarrier, said bolt having swivel connection with said hloclr.

13. ln a casting machine, the combination with the die casting mechanism thereof; oil a holt having a joint dexibly coupling it With said mechanism; a lever having ost motion connection with said holt; and mechanism for operating said lever.

1d. ln a casting machine, the combination with the die casting mechanism thereof; orn a holt having a joint dexibly coupling it with said mechanism; a lever having adjustahle lost motion connection with said bolt; and mechanism lor operating said lever.

l5. ln a casting machine, the combination with the die casting mechanism thereof; of a holt Ihaving a joint dexihly coupling it 'with said mechanism; a lever; means tor coupling said holt with said lever and adjustahle to change the place of enagement of the bolt with the lever longituinally or the holt; and mechanism lor operating said lever.

16. l'n a casting maehine, the combination with the die casting mechanism thereof; ot a lever for operating said mechanism and having a fulcrnm pin and a plurality ot openings at its itnlcrum, any opening being adapted to receive the nlc pin to change the location et the nlcrnm with respect'to the lever. v

i7. ln a casting machine, the combination with the die' casting mechanism thereof; olf a lever for operating said mechanism and provided with mes for shitting the inl crum of theV lever with respect thereto.

18. ln a casting machine, the comhination with the die casting mechani thereof; or a lever for operating said mechanism` and having a tule pinv and a plurality of openings at its fulcrum, any opening being adapted to receive the fulcrum pin to change the location of the fulcrum with respect to the lever; and a rehiprocable head upon which the lever is fulcrumed and carry-y ing a portion of said mechanism.

19. ln a casting machine, the combination with the die casting mechanism thereof; or a lever for operating said mechanism and provided with means for shifting the fulcrum of the lever with respect thereto; and a reciprocable head upon which the lever is fulcrumed and carrying a portion of said mechanism.

20. A casting machine including the die structure thereof; mechanism for opening and closing the die structure; power transmitting means for operating said mechanism; and means for automatically disconnecting said power transmitting means from said mechanism and governed by said mechamsm.

2l. A casting machine including the die structure thereof; mechanism for opening and closing the die structure andinclusive of a cam cylinder and parts complemental thereto; power transmitting means for driving said cam cylinder; mechanism for connecting said power transmitting mechanism with and disconnecting it from said cam cylinder; lever mechanism for operating the latter mechanism; anda cam upon said cam cylinder for operating said lever mechanism.

f2.2. A casting machine including the die structure thereof; mechanism for opening `and closing the die structure and inclusive of a cam cylinder and arts complemental thereto; power transmitting means for driveA ing said cam cylinder; mechanism for con`= necting said power transmitting mechanism with and disconnecting it from said cam cyl= inder; lever mechanism for operating the latter mechanism; a cam upon said cam cyl inder for operating said lever mechanism;- a handle also connected with said lever mechanism whereby it may loe manually op= erated; and spring means intervening loe= tween the lever mechanism and the mecha msm tor controlling the' application oli powerto the cam cylinder.,

23. A casting machine including mold ing mechanism; mechanism for operating said moldingv mechanism and inclusive ot a cam cylinder and parts complemental there= to; power transmitting means for driving said camcylinder; mechanism for connecting said power transmitting mechanism with and lll@ lid

disconnecting it from said cam cylinder;

lever mechanism for operating the latter mechanism; and a cam npon said cam cylinr= der Jfor operating said lever mechanism.

24:. A castingmachine including molding mechanism; mechanism for operating said molding mechanism and inclusive of a cam cylinder and parte complemental thereto;

power transmitting means for driving said cam cylinder; mechanism for connecting said power transmitting mechanism with and disconnecting it from said cam cylinder; lever mechanism for operating the latter mechanism; a cam upon said cam cylinder for operating said lever mechanism; a han lle also connected With said lever mechanism whereby it may be manually operated; and spring means intervening between the lever mechanism and the mechanism for controlling the application ol power to the cam cylinder. f, l

25. lin a casting machine; the combination with a carrier for supporting a portion or the machine; of a reciprocable head upon which said carrier is supported to move transversely of the direction of reciprocable movement of the head; a lever pivoted between its ends upon the head and connected at one end with the carrier to eiect moveu ment of the machine; cam mechanism engagv ing the other end or the lever for effecting operation of the lever; and mechanism for effecting relative motion between the cam mechanism and the head ane/ance 26. ln a casting machine, the combination with a carrier :for supporting a portion oil the machine; of a reciprocable head upon which said carrier is supported to move transversely of the direction of reciprocable movement of the head; a lever upon the head connected with the carrier to edect movement oit the machine; cam mechanism for effecting operation of the lever; mecha nism for effecting relative motion between theeam mechanism and the head; and a supplemental support upon and with relation to Which the head moves vvhen actuated.

27. lin a casting machine; the combination f with a die carrier; of a head upon which said die carrier is supported to move transversely of the axis of the machine; a lever upon the head connected vvith the die carrier to effect die movement; cam mechanism for effecting operation of the lever; and mechanism for moving said cam mechanism with relation to the head.

ln witness whereof, li hereunto subscribe my name this ninthday of May, A. D. i919.

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