US1178149A - Casting-machine for metallic packing. - Google Patents

Description

A. H. GENTLE. CASTING MACHINE FOR METALLIC PACKING.

APPLICATION FILED MAY I, I914.

Patented Apr. 4, 1916.

3 SHEETS-SHEET I THE dowmam gmouunfl 00.. wAsmNu'roNfn. q

A. H. GENTLE.

CASTING MACHINE FOR METAL'LIC PACKING.

APPLICATION FILED MAY I, 1914.

Patented Apr. 4, 1916.

3 SHEETSSHEET 2- A. H. GENTLE.

CASTING MACHINE FOR METALLIC PACKING. APPLICATION man MAY-1.1914.

1,178,149. I Patented Apr. 4,1916.

3 SHEETS-SHEET 3.

THE COLUMBIA PLANOORAPH co., WASHINGTON, n. c.

s'rarns PATENT orrrcn.

ALBERT H. GENTLE, OF BIRMINGHAM, ALABAMA. ASSIGNOQ B, OF ONE-HALF T0 HALSTEAD T. AYDELOTT, OF BIRMINGHAM, ALABAMA.

cas'rme-iv aonmnron METALLIC PACKING.

To all whom it may concern: 1

Be itknown that I, ALBERT H. GENTLE, a citizen of the United States of America, residing at Birmingham, in the county of J efferson and Stateof Alabama, have invented certain new and useful Improvements in Casting-Machines for Metallic Packing, of which the following is a specification.

My invention relates to a casting machine peculiarly adapted for the manufacture of metallic packing rings and particularly sectional packing rings wherein the sections are provided with offset lugs or'shoulders which require to be carefully extracted from the molds to avoid distorting or injuring the lug. I i l 7 One object of my invention is to provide a machine particularly adapted for rapidly casting packing rings in metallic molds and one feature of special advantage is the manner in which the top plate over the molds carrying the gates for the metal is made adjustable to clear the molds and trim off the Another feature ofparticular advantage is the manner in which the molds are journaled in the machine frameand adapted to be tilted so that the finished packing rings when ejected from their molds will fall by ravity into a receiving hopper or chute and not require handling.

A further feature of novelty in my device is the manner inwhich the molds are constructed and arranged with reference to the mak-. ing of packing ring sections having an offset lug or projection, my object beingto so arrange the ejecting mechanism that the lugs will not be inanymanner injured or distorted when the packing rigs are ejected from the mold. o l V vMy invention further comprises various novel details of" construction and arrangements of parts which. in their preferred embodiment only, are illustrated in the accompanying drawings'which orm a part of this specification, and in which a Figure 1 is a plan view of my machine with the moldsin casting position and the cover plate shown shifted from over the molds. Fig. 2 is aside elevation of Fig.1. Fig. 3 is a Vertical sectional elevation taken on the line m-m of Fig. 1, and illustrating the 'molds in tilted position read for the/ejecting operation. Fig. 4: is a detail elevat on of the molds-taken on the line 11/772]. of Fig.

Specification of Letters Patent.

7 rear wall 12 of the frame.

Patented Apr. 4., 191

Application filed May 1, 1914. Serial No. 835,622.

tudinally grooved at 3 along their upper edges to form slideways in which are receivedtongues on the side edges of the sliding top plate l. This plate is provided centrally with a rack 5 thatmeshes with a large pinion 6 mounted on .shaft 7 and driven by a small pinion 8 fast on a shaft 9 and which may be turned by a hand wheel 10., These shafts have theirbearings in a vertical extension 11 of the walls 2-. The

top plate 4; is stopped in its extreme position to the left by engaging a seat in the I prefer to use a multiple mold frame 13 which is journaled on a bearing pin 1.4 and a short; shaft 15,.which latter is keyed fast to the frame 13 and provided with an arm 16 by means of which the frame cin be rocked on its bearings. St ps 16 andlG are engaged by arm 16 and serve to limit the rockingof the mold in either direction.

the latter being attached eccentrically to the frame to permit of a limited adjustment. 1 have shown molds designed for the manufacture of two complete sets of packing rings, each set comprising a plain sectional ring which interfits at break joints within a sectional ring having internal lugs. As the pairsof molds are duplicates, only one pair 7 will be described. The mold chamber or vchambers in the multiple mold used for casttaper pin 23 which is driven through alining 31*, being (see Fig. 3) it entirely fills out the slot in openings on opposite sides of the mold chamber. The barrel 17 is provided with elongated slots 24 through which the pin passes serving both to limit the forward travel of the barrel and prevent its rotation about its longitudinal axis. To facilitate the removal of the pin, its outer end is threaded and has a nut 25 thereon adapted to be screwed down to engage the mold and force out the pin. The inner end of the barrel 17 is closed by a screw plug 26 having on its inner face a stud 27 which engages one end of a coiled spring 28, the other end of which engages a corresponding stud 27 on the rear face of.

the head 21. This spring acts to return the barrel to its retracted or inner position.

The mold for forming the packing rings which carry the internal lugs, comprisesa movable barrel 29 which-has slots 2 1 therein and is held against rotation by a pin 23 in the same manner as barrel 17. This mold chamber has a seat 30 which an offset shou-lder on the barrel I engages. Within this barrel is a stationary head 31 which forms the inner wall of the mold cavity and is held against movement by the pin 23 This head has a reduced cylindrical head portion 7 to engage only the plate 42.

31, the outer end of whichstands flush with thetop face of the mold and is transversely and diagonally slotted toreceive an auxil= iary sliding ejector member 32. This mem ber'is made fast'at its center to a pin .33 which passes slidingly; through alining openings in head 31, pin 23 and screw plug 26, which closes the rear end of the barrel; It is provided with an offset shoulder 3 1 between which and the head 31 is disposed a spring 35. The middle portion of the auxiliary ejector 32 fits in the slot across head shaped so that when retracted said head. 'At its innerends however the member 32 carries extensions 32*v which fit into alining slots 29 provided to receive them in the head 29 of barrel 29-and in a raised pattern 36 thereon. The pattern slots permit the extensions 32 -to pass down through them and seat in the slots in the barrel end which'theyfill. out. The pat- .terns outer peripheral edge is spaced from the wall of the mold chamber. The barrel 29 also carries pattern lugs 37 which are oppositely disposed and extend flush with' the top of the mold to divide the mold forbeing driventhrough their outer ends to' hold the cross plate 39 against 'disengagement from the pins. This plate 39 overlaps V the rear ends of all four barrels in the mold box. I mount on the back of plate 39 a pair 'of pins 11 which serve as guides for a diagseparate means, one controlled by the foot lever 4:3.and the other by the hand lever 44;. The foot. lever is pivoted to a bearing plate 45 and connected by a link 46 with a bell crank lever 17 keyed to a shaft 50 which is journaled in the sides 2' of the frame and project s-beyond-the other side where it is connectedto a similar bell crank 47. These two bell cranks have slots 48 in which engage pins 49 at opposite ends of a slide frame 51 (see Fig.6) which at its center carries a pair of spacedpins 52 arranged as they are advanced to straddle the platei12 the mold being in the position shown in Fig. 3, and to strike only the plate 39.- The hand lever llis fast on a shaft 53 journaled in;

hangers under the frameand provided. at its center w1th a crankarm=54g which 1s connected'to a link 55 'thatpasses-upwardly through the frame and connects with a bell":

crank lever 56 journaled toturnfreely on the shaft 50fand having its upper endi diss posed between the pins 52 and in position 7 icei' The'top plate 4 is provided with a' plurality of gates 57 so arranged that when shifted 7 above the molds/each gate will admit metal to one side of each mold cavity' inthe multiple mold. In" order. to rapidly clear these gates of metal after having made a cast, I

provide an ejector plateh58 disposed beneath the plate 1 when the latter stands in theposition shown in Fig. 3. This plate is ears at each side of.;plate '58, which ears, see I Fig. 2, work in the openings in the frame 1 sides. Coiled springs.64. ,surrouncl theepins l I 63 and serve to return the latterto its low: ered position against the heads of said pins 63. The plate carries pins 65 which areso arranged that theywill project into and clear each of-the gates 57 as the plate is raised by lever'6'2. Springs 66 and 67-, re-

spectively, engage and support in initialposition-the levers 13 andAA.

In operation, assumin'gthe molds to be. in

the position shown in Fig. 1, thehand wheel lO'is grasped and turned to. shift top plate 115 1 a snug fit in-openings provided forthem in, I

to the right into position with its gates 57 in register with the several molds, whereupon the molten metal is poured into the several molds in the usual manner, it being noted that the barrels 17 and 29 and the plate 32 are retracted by their respective springs to their inner positions as shown in Fig. 3. The hand wheel 10 is now reversely turned and as the top plate is shifted to the left it shears the metal runners and leaves the top faces of the packing rings smooth and clean.

face of the heads 22 and 31*, which serves to eject the plain washers cast over the barrel ends 18, but it leaves the other packing ring sections having internal lugs still held. in

' their molds by the engagement of their lugs in the slots in the pattern 36. The ends 32 of the ejector 32 form movable bottoms for the said lug forming slots in the pattern 36, and in-order to'eject these ringsections without defacing'the lugs, the operator next presses on the handy lever Maud rocks the bell crank 56 into. engagement with the plate 42, which-forces the rods 33 inwardly and carries with them the plates 32, moving their ends 32 out flush with the top walls of the pattern 36, and forcing the lugs out of the pattern slots, whereupon the packingrings are ejected without injuryand fall by gravity from the molds. No manual handling of the molds or of the finished castingis required by my apparatus and it operates quickly and accurately to form the type of castings referred to or; is available for cast- 7 ing other devicesof like character.

Without limiting myself to the details of construction which are disclosed only in their preferred embodiment, what I, claim as new and desire to secure by Letters Patent, 1s:

1. In a casting machine. the combination of a frame, a multiple mold mounted therein, a top mold plate having gates therein adapted to register with the molds, means to shift said top plate laterally of the-multiple mold to shear the runners and expose the finished cast articles, and ejecting means to force the finished articles fromv the molds, substantially as described.

2. In a casting machine of the character described, a frame, a multiple mold pivotally connected to the frame, a top mold plate which is provided with gates for the molds,

means to shift said top plate to shear off the runners and finish the molded articles and also to clear the multiple mold, means to tilt the mold after its top plate has been shifted, and mechanism to eject the finished articles from the multiple mold in its tilted position.

8. In a casting machine of the character described, a multiple mold, each mold having means adapted to eject the molded article, a frame in which the multiple mold is pivotallymounted, and lever controlled mechanism. adapted to actuate the ejecting mechanism when the molds are tilted from their pouring'position to permit the cast articles, when ejcc-ted,to fall by gravity from the molds, substantially as described.

4:. In a casting machine of the character described, a multiple mold comprising mold cavities formed between inner and outer spaced members, a reciprccatory barrel formmg the bottom of each mold cavity,

means to hold said members in fixed relationship, means to actuate the barrels to eject the cast articles, the inner member and barrel of one or more molds being slotted to receive-an independently movable ejecting member, means to move a barrel and its coacting ejecting member simultaneously, and independently controllable means to actuate said independent ejecting member, substantially as described.

In a casting machine, the combination of amold having a circular chamber there in, a circular head held in fixed central relationship in said chamber with its outer end flush with the top of the mold, a barrel movable axially of said chamber and forming the bottom of the mold cavity, a raised pattern on its outer end, the barrel head and pattern having alining recesses adapted to receive an ejecting member which is adapt-- ed to fill the slot in the end of the head and barrel but leaves open the slot in the pattern, means to'move said barrel axially to move the pattern and casting beyond the chamber, and independent mechanism to move said ejector member to dislodge the casting from the pattern, substantially as described.

6. In a casting machine of the character described. a 'mold having a circular chamber therein, transverse alining holes in said mold, a barrel whichfits slidingly in the mold chamber, a head which makes a close fit in the outer end of said barrel which. has oppositely disposed elongated slots, said head having an opening therethrough, a pin inserted in the alining openings in the mold and head and passing through the slots in the barrel, and mechanism to actuate the barrelto eject'the molded article.

7 In a multiple mold, one or more pairs of annular mold chambers therein, movable barrels forming the bottoms of said molds,

alining openings in the inner and outer Walls of each mold, a pin driven through said openings to hold the mold walls in fixed relationship, means to move said barrels outwardly free ofinterference with said pins comprising lever controlled reciprocatory means adapted to engage and move out- I wardly simultaneously the several barrels,

auxiliary ejectors movable with the barrels, and means to actuate said auxiliary ejectors after the barrels 'reach' the limit of their outward travel, substantially as described.

8. In a casting machine, the-combination of amultiple mold, part of said molds having a simple ejecting mechanism and the other part a compound ejecting mechanism,

a common means for actuating said simple mechanisms and part of the compound ejecting mechanisms simultaneously, and independent means for simultaneously actuating the other part of the compound ejecting mechanisms.

r 9. In a casting machine, the combination of a plurality of molds, a top plate for molds having a plurality of gates for pouring said mold cavities, means to shift said topplate laterally from over said molds to shear the metal runners and uncover the with the mold chamber forms a circular mold cavity, patterns carried on said barrel opposite Copies of this patent may'be obtained for five cents each; by addressing t molds, means to stop and hold said top.

plate in predetermined position, and a common means for simultaneously ejecting the metal runners from said gates in the'top plate, substantially as described.

10. In a machine for casting packing rings, the combination'ofamold chamber, a barrel fitted in the end of said chamber and axiallyadjustable therein, a fixed head which said barrel surrounds and which end comprising diametrically flanges which dlvlde the mold cavity into halves and raised patterns which give the cavity an angular shape in cross section,

plate for the mold having a plurality of gates therein, guide means to stop said plate in predetermined position, an ejector plate disposed below said top plate when in said predetermined position, guide means forsaid ejector plate, ejector pins on said plate arranged to enter said gates in said top plate, and means to move the ejector plate to force its pins into said gates to clear them, substantially as described.

' 12. In a casting machine, a frame, a mold box pivoted to the frame, means for tilting said box, stops onthe frame to arrest the box in horizontal or inclined position, ejecting devices carried by said mold box, and actuatin mechanism carried by the frame and adapted to engage said ejecting devices when the mold box standsiin its tilted positicn, substantially as described. 1 V

'13. In a multiple mold, a plurality of annular molds formed by spaced members forming the inner and outer walls of anlular mold chambers, means to hold said members in fixed relationship, movable barrels forming the bottoms of said mold chambers, patterns on said barrels which traverse the mold chamberradiallyto subdivide it into sections and which in pouring position stand flushwith the top of the mold chamber, and means to move the barrels to eject the sectional casting, substan} tially asdescribed.

14. In a castlng machine,'a frame having horizontal guides, a gatedptop'mold plate which slidingly engagesf'said guides, a mold disposedso i that said topfplat efits snugly thereover While mounted on said guldes, a rack on sald plate, a pinion mounted on said frame and meshing with said rack, andfa hand wheel for driving said pinion;

15. In combinatiom-fa mold frame, a mold box mounted thereon, 'Vmolds in) said box comprising each an ejecting barrel, part of said molds having an'auxiliary ejector dis posed abo'vethebarrel and projecting downwardly therethrough, a member movable to actuate all said barrels, a membermovable to actuate saidauxihary GJGCtOIS, and Independently controllable means to'actuate said I members, substantially as described.*

In testimony whereof'I afiix my signature in presence of two witnesses.

i ALBERT ENTLE, Witnesses:

Noann VVnLsH, H R. DIVJOHNSTON, Jr.

Washington. I). G. l

he Commissioner of ratentsg

Images