US959557A - Machine for making castings. - Google Patents

Description

A. KRIBS.

MACHINE FOR. MAKING CASTINGS. APPLICATION FILED SEPT. s, 1909.

Patented May 31, 1910.

'2 SHEETS-SHEET 1.

WlTNESSES: i /3 'M 1 A. KRIBS. MACHINE FOR MAKING GASTINGS.

APPLICATION FILED SEPT. 8, 1909.

Patented May 31,,1910.

2 SHEETS-SHEET 2.

raged cries.

ANTHONY KRIBS, OF BROOKLYN, NEW YORK.

MACHINE FOR MAKING CASTING-S.

Specification of Letters Patent.

Patented May 31, 1910.

Application filed September 8, 1909. Serial No. 516,677. H

To aZ-l'whom it may concern:

Be it known that I, ANTHONY KRIBS, a citizen of the United States of America, and a resident of Brooklyn, county-of Kings, and State of New York, have invented 'cera tain new and usetul'lmprovements in Machines for Making Castings, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to improvements in machines for making castings, and particularly to machines for making castings of soft metal. 1 y

The objects of my invention are to facilitate the making of the castings and the handling of the same when made, and to these ends my invention consists in certain novel details of construction and combinations of parts such as will fully appear here inafter.

In order that my invention may he I thoroughly understood,l will now proceed section therethrough.

to describe in detail an embodiment thereof, having reference to the accompanying drawings illustrating the same, and will then point out the novel features in claims.

In the drawings: Figure 1 is a top view of a machine constructed in accordance with my invention. Fig. 2 is a view in central vertical longitudinal section therethrough. Fig. 3 is a view in central vertical transverse Fig. 4: is a similar view in vertical transverse. section showing, however, a modified construction in which the stationary table or support for the castings is omitted. Fig. 5 is a detail viewof a locking device for the mold sections. Fig. 6 is a view in side elevation of a casting formed in the machine. Fig. 7 is a view in transversesection of amodified form of the machine which ma be used when no core is employed. Fig. 8 1s a detail top view of the mold elements of such a machine. is a detail view in side elevation of a casting produced in such a machine.

The bed plate of the machine comprises a base piece 10, a top plate 11, and-end walls 12. The said bed plate forms a support for two horizontally movable mold elements 18-13, the said elements being pivoted to- Fig. 9

- gether at the rear end thereof by means of a pivot pin 14:, the lower end of the said pin being received within an opening 15 in the top plate 11, whereby the said mold elements are not only 'pivotally connected together but are also'pivotally connected to the said bed plate. The said elements rest and move upon the face of the top plate 11, their outer movements being limited by means of stops 16 carried by the said bed plate.

The mold-elements 13 carry at their forward ends a locking device comprising a cam 17 pivotally supported in one of the mold elements and arranged to engage a recess 18 in the other mold element. The cam is provided with a handle 19 by which it may be operated. The opening 18 is arranged in a lug 20 carried by one of the mold elements 13, having a lateral opening therein of a size to admit the cam when it is properly positioned to receive it, the proper positioning being, of course, accomplished by manipulation of the hand lever 19. When the cam is received within the opening 18 a turning of the lever in the proper direction will tend to draw the mold elements tightly together and will secure them fast in their closed position.

The molds proper 21 are secured in the mold elements conveniently by means of screws 22 whereby they may be readily mounted in position and removed as may be desired. These molds in the present instance areconstructed to produce a gang of similar connecting castings, each individual casting being the shell of an-eXpan sion bolt. The upper portions of the molds are recessed as at 23 to provide a run for the molten metal to the various individual mold recesses to form the individual castings.

.In Fig. 6 three of the individual castings 25 are shown, the same being gated to a sprue 26 formed in the runway 28; these individual castings may be readily broken at their gated portions.

The machine is provided with a vertically movable core element herein shown as comprising a bar 27, and a plurality of individual cores 28 carried thereby; there is one guided in openings 34 in the base plate 10.'

' The shaft 30 is extended rearwardly and is provided withan operatingflever 35.. In the example of my invention shown in Figs. 2 and3, the individual cores 28 pass through i a table or support 36, .their upper ends being received within the mold recesses in'the molds 21. The core element is shown in its uppermost position in Figs. 2 and 3 of the drawings, and at this position the ma-' chine is ready for the casting to be made. The casting is made by potring molten metal into the run-way 23 whence it will flow through the various gates 24 into the individual mold recesses around the cores. Afterthe casting has been made and the metal has been allowed to set, the locking cam 17 may be rotated by proper manipulation of the handle'19 so as to release the mold elements, and the two mold elements may be horizontally moved in opposite di- ,rections, conveniently by manipulation -of the handles 37 connected thereto. After the mold sections have thus been drawn apart the operating handle may be manipulated to the end thatthe core element will be depressed and the pores withdrawn from the castings. The castings are meanwhile sustained by the support 36, the said support holding the castingagainst downward movement while the cores are being thus withdrawn. In the machine illustrated the cores are moved downward about half the length of the individual castings, but as-the cores are tapered they will thereby be'entirely freed from the casting and thereafter it will only benecessarytopmk up the casting and remove it freely.

In Fig. 4 I have shown a slightly modified construction in which the stationary table or support 36 h'as'been omitted. In this case themold elements may conveniently be kept in their closed position while the core element is being depressed, and the said mold elements may thereafter be laterally moved for the purpose of removing the casting.

1 In Figs. 7 and 8 I have shown a form of mold which may be employed where the in- .dividual castings arein the formof shell sections, each constituting one-half of a complete shell. In such case there is no need to use a core element independent of the mold elements, as the entire casting may be made by properly forming the molds themselves. Such molds 38 are shown in Figs. 7 and 8, and thetable or support 39, corresponding t o-the table or support 36 of theembodiment of my invention shown in Figs. 2 and 3','is imperforate, and the core element has been omitted entirely. Fig. 9 shows a portion of the chine.

It will be readily understood that castings may be very rapidly made in machines constructed in accordance with the foregoing;

" the lockingzand unlocking of the mold sections, their lateral relative movement, and

gated casting produced insuch a ma-' the vertical movement of the core elements v are allproduced by rapid and simple movements of thevarious operating handles and levers so that no time 1s wasted,moreover, there is a wide open run-way for receiving the molten metal such as requires the minimum care to be expended pouring the metal. 'It will readily'be perceived, more-.

. over, that the molds will be accurately and positively locked together by the locking device before each casting operation so that there will be no vdan er of forming fins upon the sideslof the individual castings such as would have to be'later removed.

WVhat I claim SE c r 1. In a casting machine, the combination with two mold. elements relatively movable in a horizontal direction, and means for se-.

curing them together, of a core element for cooperation with the said mold elements, a shaft havin a crank (portion engaging the said core cement, an means for rotating the said shaft to raise or lower the core element, substantially as set forth.

2. In a casting machine, the combination;

with two mold elements relatively movable in a horizontal direction, and means for securing them together, of a core element for cotiperation with the said mold elements, a shaft journaled in a portion perpendicularly stationary with respect to the first said mold elements, the said-shafthaving an extended crank portion, yokes connected with the said i core element at opposite ends thereof arranged for engagement with the said crank portion of the'shaft, and means for imparting movements of rotation to the shaft to 13.15601 lower the core element, substantially.

as set forth; i

3. The combination with a bed plate comprising a hollow structure having a base piece, end walls, and atop plate, of two horizontally movable mold elements pivotally connected to the said bed plate and mounted to move horizontally upon the said top plate,

, each of the said elements containing a mold section having a plurality of individual mold recesses, a core element comprising a bar and a plurality of individual cores arand means for Vertically guiding the said ranged to. be received Within the said mold yokes. 10

.re'cesses, the said bar being mounted within In witnesswhereof I have hereunto set the said bed plate, a shaft journeled in the my hand this 3rd day of Se tember, 1909.

end Walls of the said bed plate and having a, v ANTH NY KRIBS. crank portion between the said end walls, Witnesses: yokes secured to the ends of the said barmid 7 MAX FOERNBLER,

engaging the crank portien of the said shaft, EMILE A. KRIBS.

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