US1056442A - Die-casting machine. - Google Patents

Description

L. M. PABKHURST. DIE CASTING MACHINE. APPLIUATIO'H FILED 111N319, 1911. 1,056,442. Patented Mar. 13, 1913.

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WITNESSES.-

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L. M. PARK'HURST.

DIE CASTING IKEOHINE.

urmouron 2mm mm: 19, 1911.

1,056,442, Patented Mar. 18,1913,

. I 2 SEBZTB-BMEET WITNESSES: ,1 JNVEATOR. 5 11a 152 M Pan 1102 51 10. 1 former application by me, Serial No. 610,931,

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v LAYroN m. PAnxnnns r, or ANnEnsoN; mammal assronon iro INDIANA nm cAs'nNe DEVELOPMENT COMPANY, A conronArrIoN or INDIANA.

' nrn-cAs'rme'mAonmn Specification of Letters Patent. v

Original application filed February 15, 1911, Serial No. 610,931.

19, 1911. Serial No. 334 178.

Patented Mar. 18, 1913. Divided and this application filed June tain useful Die-Casting Machine; and I do hereby declare thatthe following is a full, clear, and exact descriptionthereof, refer- ?ence being had to the accompanying drawings. p v

This application is divided out of a filedFeb. 15, 1911, I

The object of. this invention is to provide j means for exhausting air-from a die used in connection with a die-casting machine,'par.- ticularly when the die-casting is'caused by compressed air.

The nature of the invention will be understood from the accompanying drawings; and the following description and-claims.

In the drawings, Figure 1 is an end elevation of the upper part of a die-casting machine, the lower part being broken away.

Fig. 2 is a section on the line 22 of Fig. 1 through apart of the device.

Fig. 3 is a plan view of the machine with part of the upper portion cut away on the line 3---3 of Fig. 1. Fig. 4 is a section on the line 4-4 There is shown in'the drawings a frame 10 formed of two substantially similar sides, :one of which appears in Fig. 1, andthe two sides appear in Fig. 3. Within said frame there is a tiltin'g or oscillatable casing 11,

the same being tilted-by the handle 12. I A suitable melting pot 25. is provided in the casing 11. Fuel is supplied to the casing 11 through the pipes 19 and 20. The melting pot is not shown herein, but it has an outlet 53, see- Fig. 4, and uponlthat outlet :1 die is secured so as to oscillate with the. melting pot, and when in a downward position the molten metal passes .from the melting pot through the outlet 53 to the die. Then the meltingpot and die are oscillated to the up -'j right position shown in Figs. 1, 3 and-4 and the article removed from the die.

-.The die is formed of two members an 6-1, the former having a recess which fits over the end of'the outlet-nozzle 53 from the melting pot, and it has a small inlet port 62.

fiervals in communication withthe interior of the die so that the atmosphere inthe die may pass out of the die chamber into the surrounding air chamber 63 and out there from, and thus in no mannerretard the ready; and complete admission of the. molten meta.

The die is held in" placeby a bolt65 which extends loosely through the top of the frame 66, said frame consisting of two vertical side portions and across or connection portion at-the top. Said side portions, as

seen in FF ig. 5, extend u from the-casing 66, as shown in- Fig. 1. The construction is the same at each side of the frame 66. This construct-ionis to enable the die member "to be clamped with a slight movement of the lever 67. When the bar 16 is disengaged from the notches 70, the screw 65 "can be lifted up entirely away from the die members. When the die'members are replaced, the screw 65 can drop down into place, the bar 68 turned under notches 70 and thena very slight movement of the lever 67 will complete the clamping. The screw bolt 65 is held in its upward position by a pivoted latch 72 on the frame 66 adapted when moved to slip in between the threads of the bolt 65 and hold it up out of the way of the die While the die is being arranged in place.

The upper member 61 of the die has con- "duits 163 leading from the chamber 63 to A head 165 an outlet 164 from said die. is placed in connection with the member 61 and held in place by the screw 65, said screw clamping the parts 165, 61, 60 and 53 to gether. Thehead 165 has a suction chamber 166 in communication with the outlet 164 from the die.. There is also a tubular' extension 167 connected with the l1ead165 and in communication with the chamber 166 therein. To said tubular extension atubular arm 168 is pivoted, as seen in Fig'4,.-and to the tube 168, another tube 169 is pivoted, and said latter tube is pivotally connected'with a vertical tube175', which is secured tothe extension 176screwing on the hub 126. of the melting pct 25 and in communication with the passageway 177 longitudinally through the hub, which, when the pot is inverted, is

in communication with the tubular projection 178 in the cap 179, which is loosely mounted on the hub 1-26 of the melting pot, and downfrom the projection 178 a suction pipe 180 extends to a suction pump, not shown. \Vith this mechanism when the pot is inverted and the metal enters the die, the tubes 177 and 178 will. be in communication and the air will be exhausted from the die chamber so that the chamber will be entirely filled by the molten metal.

I claim as my invention:

1. A die casting machine including an oscillatory melting pot, a die construction, a flexible conduit between the melting pot I and die construction for exhausting vair from the latter, and means controlled by the oscillatory movement of the melting pot for controlling the exhaust of air from the die.

2. A die casting machine including an oscillatory melting pot with a suitable outlet nozzle having a hub extending from the side ofthe melting pot and having an air passage throu h it away from its-center, a hearing forsald hub provided with an exhaust "air passageway adapted to register with the Dassage in said hubwhen the melting pot is fixed. my signature in the tilted, a suitable die construction, and a flexibl conduit between said die construction and the passageway in the hub of the :inelting pot for exhausting the air from the 3. A die-casting machine includin dies having a plurality of: gates with their adjacent surfaces formed so as to provide an escaping air chamber in communication with the main die chamber and one of said gates having passageways from said escaping air chamber, an air exhaust head, means for clamping said air exhaust head and die gates together said exhaust head being in communication with the passageway in said die gate, a fixed air exhaust pipe, and a flexible conduitextending from said air exhaust head to said stationary exhaust P P i In witness whereof, I have hereunto afpresence of the witnesses herein named.

LAYTON M: PARKHURST.

Witnesses:

WM. DURBIN, BYRON JARVIS.

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