US936486A - Casting-machine. - Google Patents

Description

J. SOSS & A. W. HRISTIANSON.

CASTING MAUHINE.

APPLXGATION FILED APR.19, 1909.

936,486. Patented 0@1;.12,1909.

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lll/VENTORS L/OS e/O 605s J. SOSS & A. W. CHRISTIANSON. CASTING MACHINE. APPLICATION FILED APR. 19, 1909.

936,486. Patented 0@t.12,19o9.

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Josep/1 dass fdo/@ W f/s//a/won ATTUR/VE Y6" UNITED sTATEs PATENT oEEioE.

JOSPH SOSS AND ADOLPH W. CHRISTIANSON, OF NEW YORK, N. Y.

CASTING-MACHINE.

Specification of Letters Batent.

Patented Get. 12, 1909.

Application leg April-19, 1909. Serial No. 490,716.

T o all whom it 'may concern:

Be itknown that we, 'JOSEPH Soss and AnoLPH W. CHRISTIANSON, citizens of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in CastingMachiues, of which the class specifiedconstructed as hereinafter described and claimed.

The invention is fully disclosed in ,the following specication, of which the accompanying drawings form a part, in which .the separate parts of our improvement are designated by suitable reference characters in each of the views, and inA which Figure l is a sectional side view of our improved casting machine with parts of the construction omitted, Fig. 2 a section on the line 2 2 of Fig. 1, Fig. 3 a plan view with part of the construction in section and parts omitted, Fig. 4 a. partial section on the line 4 4 of Fig. l, Fig. 5 a section onthe line 5.-5 of Fig. l, Fig. 6 a view similar to Fig. 3 but showing only Darts of the constructlon and showing parts in section and in different positions, and ;-Fig. 7 ai sectional detail showing a. part of the driving mechanism of the machine, part of which is also shown in Fig. 1.

In the practice of our invention, we provide a furnace a composed of an outer metallic wall or casing a2 and provided with an inner lining a3 of fire brick, and the furnace a is supported by legs a4.

' Within and resting on the bottom of the furnace chamber a5 is a gas and air burner b of any. suitablel construction, and with which is connected two pipes b2 and b3 one of which is designed to supply 'gas and the other air to the burner b, and said pipes are preferably passed through the bottom of the furnace casing and are provided respectivelywith extensions b4 and b5 having valves L and bl. The burner b is preferably composed of parallel pipes bs connected by cross pipes b, but any suitable burner adapted for the consumption of gas and air may be employed.

Within the top portion of the furnace is placed a retort receptacle c, and passing upwardly through the bottom thereof is a cylinder 02 in which is mounted a piston c3. The cylinder c2 is provided in one side thereof and adjacent to the bottom of the retort receptacle c with an opening 0*, and at the bottom en d of said cylinder is a forwardly directed pipe c5 which communicates therewith and extends through the front wall of the furnace, and which is controlled by a valve d which is conical in form as shown in Fig. 2 and provided in one side with a transverse port d2, and the valve d is provided with a rod d3 which passes out through one side of the furnace wall and with which is connected an arm d4. A bracketarrn d5 is connected with the furnace casing or wall and passed through theend thereof is a set screw d, and a spring Z7 is placed between the inner end of the set screw cl and the outer end of the valve rod d3, and this spring presses on .the end of said `valve rod and serves at all times to hold the valve (Z firmly seated and the tension of this spring may be regulated at any time by #means of the screw als.

The ,entire machine is preferablyV supported in or by a suitable base pan e withv ythe front portion of which are connected4 upright supports e?, and connected withitlie front wall of the furnace above the pipeo' and with the top of the supports e2 are rods.

or bars f which are angular in cross section and kon which are mounted sleeves f2 which are movable thereon and with the inner ends of which is connected a mold jaw f3. Another mold jaw ft similar in form to the mold jaw f3 is mounted on the sleeves f2 and provided with sleeves f5 which are movable on the sleeves f2, and while the mold jaw f3 is movable on the rods or bars f the mold jaw f* is vmovable on the sleeves f2.

The mold jaws f3 and f4 are provided in their inner faces with mold chambers or re cesses ,f6 which are the counter parts of each other, and when the said mold jaws are placed together in the operation of the ma- V g4, and a lever g5 is pivoted to the arm g by means of a bolt g which passes through the slot g3 and is provided with a nut g? and the position of the lever g5 may be adjusted on the arm g by means of the said bolt and nut. The arm g2 is slotted horizontally as shown in Fig. l, and the lever .gppasses therethrough, and pivoted to said lever between the arms g and g2 is a link il, provided with a pin h2 on which is mounted'a horizontal bar /Lgwhich ranges backwardly and is adapted to enter and pass through vthe transverse aperture in the mold jaws f3 and f, and `the hiold ]a w f4 1s provided with a thimble h4 into which the bar h3 passes and which serves as a guide and support for the rear end thereof..

Mounted on the front end portion of the sleeves f2 isa rock shaft z' with which is con nected a lever 22, andsaid shaft is provlded with downwardly and backwardlydirected arms 3, and mounted between the sleeves f5 is a rod 4 with which are vconnected links which are also connected with the arms 3 of the shaft i.

On the front ends of'the bars f are placed keepers j with which is connected a transverse'rod y'2 provided .with a lever js, and mounted between the front ends of-the sleeves f? is a rod jfwith which are connected links js, and the rod jz is provided with arms j with'whichl said links are also connected.

The front end of the pipe is provided with a conical or tapered nozzle 0G. and the mold jaw f3 at lthe inner end of the transverse aperture fs is provided with a corresponding conical recess c7, and by manipulating the levers 2 and ja the mold jaws f3 and f4-may be thrown into the position indicated'in dotted lines in Fig. 1, and in fully lines in Fig. 6 in which position the aperture f8 in the mold jaws f3 and f4 will registei` with the bore of the pipe c5 and a communication between the cylinder c2 and the mold chambers or recesses f in the mold jaws]c3 and f4 will be established.

Supported above the furnace a is a shaft 1, said shaft being preferably supported by a hanger or'hangers 7a2 `only one of which is shown, and adjacent thereto is another hanger or support 7c3 in which is mounted a crank shaft 7c, this construction being clearly shown in Fig. 7 and partially shown in Fig. 1,-. The crank shaft lc* is provided with a large crank disk 705 having a crankpin 7: with which is connected a crank rod 7c", and connected with the crank rod [fis a link device las. The crankrod c* is also provided with two other crank disks m connected by a wrist pin m2 with which is connected a crank pin m3 provided with a tubular head m4 into which passes a longitudinally movable pin m5 provided with a pivot keeper m61 Placed in the tubular head m4 of the crank pin m3 is a spiral spring m7, this construction being clearly shown in Figs. l and 7, andthe pin m5 is provided with a stop m8 on which the'spring mT bears. The piston c3 in the cylinder 02 is provided with a rod 'n with which are connected links n2, and pivoted'over the. front wall of thefurnace at n3 is a lever n* with which the links n2 are connected at n, and the lever a* ranges backwardly and the end u thereof passes through the keeper m. The arm (Z4 which is connected with the valve rod d3 passesthrough the link device is as clearly shown in Figs. l and 7, and with this construction it will be seen that the operation of the crank shaft 7a4 results in the eperation of both the lever:

n4 and the arm by which the piston o3 and the valve d are operated.

The outer crank disk m on the crankshaft /t't is provided v. ith a conical clutch member o in which is placed a spiral spring o2, and said crank disk m is provided with a recess o3 adapted to receive the corresponding end of the shaft icas clearly shown i-n Fig. 7, and mounted on said shaft is'a supplemental clutch member o4 which is movable longitudinally of said shaft.

Mounted on the shaft c adjacent to the hanger k2 is a sleeve p to which is pivoted a lever p2, and connected with said lever is a link p3 which is connected'v'with a supplemental sleeve p4 slidably mounted on the shaft /c and by means of which the clutch member 04 may be forced in the direction of and into connection with theclutch member o, and by'means of this construction the motion of the shaft 7c may be transmitted to the crank shaft 7a* whenever desired, the lever p2 being forced in the direction of the arrow ac for this purpose, and whenever the pressure on said lever is released the spring o2 will operate to vseparate ,the clutch members 0 and at and the movement of the crank shaft c* will be discontinued. i

One wallpof the furnace, preferably the back wall, is provided with a side opening r through which the burner or the condition of the furnace chamber may be examined, and by means `of which, or through which the burner may be ignited, and in the ,top portion of said 'wall of the furnace is an escape flue or passage r2 throughwhich the products of combustion may pass.

Pivoted to the inner end of the arm g2 which is .connected with the mold jaw f4 is a rotatable stop or regulating device s, the connection of `which with said arm is made by means of a bolt or screw .s2 .passing through the slot g4 and provided with a nut .esmas whereby the stop or regulating devices may be adjusted longitudinally of said arm if desired, and this device is intended to regulate the operation of the lever g5 as hereinafter described.

It will be understood that the mold charnber formed by the separate parts f in the mold jaws f3 and f4 may be of any desired shape according to the article whichl it is desired to c ast, and the operation of ourimproved casting machine will be readily understood from the vforegoing description when taken in connection with the accompanying drawings and the following statement thereof.

This machine is particularly designed for casting various articles from what are known as soft or comparatively soft metals which will melt quicker than steel or cast iron, and in practice the metal Ior metals `to be melted and fromv which the castings are to be made are placed in the retort receptacle c and the burner'is ignited. .The molten metal, ,as will be understood, passes in to the cylinder c2. through the opening or aperture c* .and into the pipe ,05, the valve l therein being normally closed. At this stage of the procedure-the lever g5 is operated to withdraw the bar h3 into the position shown in Figs, 1 and. The lever 2'2 is then moved in the direction of the arrow m2. This operation forces the mold jaw f4 into connection with the mold jaw f3 as indicated in dotted lines in Fig. l and in solid 'lines in` Fig; 6, andthe form and construction of the arm s and link 7'5 is such that this operation will lock the jaws f3 and f4 together. The lever ja-is then moved in the direction of the arrow fr and this forces the jaw f3 with the jaw f4 locked thereto into the position shown in dotted lines in/F ig. l, invwhich position the conical nozzle c 'at the end of thepipec5 enters the corresponding recess c7 in the jaw f3 and the `communication between the pipe 05 and the mold chamber in the jaws f3 and f* is established, the position o`f the'jaws f3 and f4 at this time with reference to each other being clearly shown in Fig. 6. The lever p2 is then operated to throw the clutch mem- ,bers' o and o4 into engagement and the crank shaft 7c* is turned. t the 'beginning of this 'movement of the crank shaft, the larm d* which is engaged with the large crank disk 71:5 is loperated to open the valve d, andat the same time the piston c3 which is operated by or from the small crank disk m begins to move. The pressure of the piston c3 on the molten metal in the lower end of the cylinder czis not exerted untill the aperture 04 is ,entirely closed, and at this tlme the valve d has been opened and the molten metalis forced under pressure into the mold j chamber f7 in the jaws favand f. The lever p2 is loperated until the shaft 7c* has made one complete revolution, during which the valve d has been opened, the mold chamber in the jaws f3 and f4 lilled and the valve d reclosed and the piston c3 raised to its higheSt'pOsition. The lever is then operated in the direction of the arrow to withdraw the mold jaws f3 and f4 while still locked together from engagement with the pipe c5, after which the lever g5 is thrown into the position indicated `at y' in Fig. 6, in which position of said lever the bar h3 is thrown backwardly unt-il the end thereof reaches the position shown at y2' in said ligure. This .cleans ,off the surplus metal at the end of the cast-ing in the mold chamber f7, and when the metal has partially cooled the lever g5 is forced into the position shown at |(1/3 1n Fig. 6, and this operation forces the bar h3 entirely,7 through the mold jaw f3 and cleans out the recess 07, or forces out any metal which may have lodged in said recess.`

It will be understood that the stop devices is turned into the position shown in dotted lines in Fig. 6 to limit the first movementof the lever g5 `as above described, after which `said stop device is turned into the position shown in full lines vin order that the lever g5 may be moved into the second position above described, or that shown at g3. After the operation of the leverg*5 as and for the purpose above described, the lever i2 is moved backwardly or in the direction of the arrow m5, and this operation results in separating the mold jaws f3 and f4,

and the casting is dropped out andA falls into the base pan e of the frameor to any suitable receptacle prepared therefor.

The object of the spring attachment by means of which the pin m5 is connected with the crank rod m3 as shown in Fig. l, is to cushion the piston c inits downward movement and to prevent a too great or too sudden pressure or shock being appliedto the molten metal within the cylinder c2, and the consequent injury to said cylinder and its connections which might 'result especially when said parts are highly heated. The link or keeper devices m and las which are cons Vnected'with the lever n4 and the arm d* respectively `and by means of which said lever and armvare operated are adjustable on vsaid lever andarm, and bymeans of this construction the interval of time between the operation of said arm and said lever'may be regulated.

It will be seen that the lower end of the .cylinder c2 and the kpipe or passage way (E are directly over the burner or iny the bot'- tom part of the furnace chamber, and by parts, theI molten metal in the said cylinder and in the said ipe is'highly heated and maintained in a iquid condition so that it Hows more freely thany would otherwise `be possible, and this facilitates the' operation ofthe apparatus as hereinbeforedescribedV -means of this construction or location of said which extends through and also enables the apparatus to Work with a less degree of heat or less consumption of fuel than would otherwise be possible.

The mold aws f3 and.)c4 as shown in Figs. 1, 3, 4 and 5 and the means by which they are operated form no part of the invention described and claimedherein, but are made the subject of another application for Letters Patent of t-he United States filed by us ae 5, 1909, Serial No. 500,336.

The reason for forming the valve d with a transverse port or passage in one side thereof only, is to provide means whereby said valve will clean itself every time that it is turned back to close vthe tube or tubular passage which 'communicates with the bottom of the cylinder, this operation being accomplished by reason of the fact that the. molten material between the valve and thecylinder in the reduced passage way or tube c5 is highly heated at all times when the apparatus is in operation.

The burner and the clutch device by which the crank shaft 7a4 is operated form, in themselves, no part of this invention, and any suit-able burner-may be employed and any preferred means for operating the crank shaft, and various changes in and modifica- 'tions of the other parts of our improved casting machine, asy herein shown and described, may be made, within the scope of the appended claims without departing from the spirit of our invention or sacrificing its advantages.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent, is :f

1. In a casting machine, a furnace provided with a.retorty receptacle, a vertically arranged cylinder communicating with said retort receptacle and terminating below the same iii a contracted tube or passage way one side of the furnace, said retort receptacle and said cylinder being adapted tov receive molten metal, a piston adapted to operate in said cylinder to exert pressure on the molten metal in said cylinder, a valve adapted to control said tube or passage way, a single hand operated means adapted to operate said valve and said piston, and adjustable devices whereby the .time interval between the operations of said valve and saidI piston mayv be regulated.

2. In a casting machine,a furnace provided with a retort receptacle in the top portionthereof, means for heating the same, a vertically arranged cylinder passing through the bottom of the retort receptacle and provided at its lower end with a tubular eXtension or passage way which extends out through one side of said furnace, and a valve for controlling said tubular extension or pas` sage way, said valve being provided with a port or passage in one side thereof only.

3. In a casting machine, a furnace provided with a retort receptacle inthe top portion` thereof, means for heating the same, a vertically arranged cylinder passing through the bottom of the retort receptacle 'and adapted to receive molten metal therefrom and provided at its lower end with a laterally directed extension `which passes through one side wall-of the furnace and is provided with a conical valve seat, a conical valve for controlling said extension and provided with a transverse port or passage in one side thereof, means for holding said valve normally seated, and means foroperating said valve.

In testimony that we claimlthe foregoing as our invention we have signed our names in presence ofthe subscribing witnesses this 17th day of April 1909.

JOSEPH SOSS.v

ADOLPH W.' CHRISTIANSON. i l/Vitnesses:

C. E. .MULimANY,

H. R CANFIELD.

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