US3450191A

US3450191A - Submerging injector for molten material

Info

Publication number: US3450191A
Application number: US535124A
Authority: US
Inventors: Michael Dolinsky Sr
Original assignee: MICHAEL DOLINSKY SR
Current assignee: CHIMA INCORPORATED A PA CORP; MICHAEL DOLINSKY SR
Priority date: 1966-03-17
Filing date: 1966-03-17
Publication date: 1969-06-17
Anticipated expiration: 1986-06-17

Description

June 17, 1969 M. DOLINSKY, SR

SUBMERGING INJECTOR FOR MOLTEN MATERIAL Filed March l7, 1966 ATTORNEYS United States Patent 3,450,191 SUBMERGING INJECTOR FOR MOLTEN MATERIAL Michael Dolinsky, Sr., Reading Texile Casting Corp. Bldg., RD. 1, Birdsboro, Pa. 19508 Filed Mar. 17, 1966, Ser. No. 535,124 Int. Cl. B22d 17/00; B29f 1/06 U.S. Cl. 164-312 4 Claims ABSTRACT OF THE DISCLOSURE walls.

This invention relates to a submerging injector for the handling of molten material and which functions by being submerged in a bath of molten material while molten material is sucked into the barrel of a chamber, after which the barrel is lifted from the molten bath and coupled to a mold for the discharge of the molten material from the barrel whereby the material is cast to the shape of the interior of the mold.

Heretofore, it has been known to supply molten material to molds by pouring such material into the receiving opening or funnel-like opening characteristic of such molds. Such has been the practice in handling such metals as lead and similar materials which are readily melted at relatively low temperatures.

This improvement relates to a manually operated device by which the molten metal may be drawn into a barrel and forced from the latter into a mold without waste or loss of molten material and without contact between the atmospheric air and the molten material. In this movement of the molten metal, it is drawn into the barrel and forced outwardly into a mold through a common orifice. Consequently there is absence of heat loss and a saving is effected by confining the molten material within closed walls.

The device is light in weight and is readily manipulated by an operators two hands. By one hand the operator supports the weight of the device and positions it while charging it with molten material and moving it to the receiving opening of a mold. By the other hand the piston within the device is provided with a pull and thrust effect similar to the action of a piston within a barrel.

The foregoing general outline of the device of this invention and additional features are described and claimed in the following specification and claims when considered in connection with the accompanying drawings in which:

FIG. 1 is a side view of the submerging injector in elevation and showing the same within a tank adapted to contain molten material while in position to draw a charge of such material into the barrel of the device;

FIG. 2 is an end view of the device shown in FIG. 1, the tank not being illustrated;

FIG. 3 is a fragmentary view in section similar to that shown in FIG. 1 and somewhat enlarged to illustrate the loading stroke of the piston within the barrel, the molten material having been drawn into the barrel;

FIG. 4 is a cross sectional view taken on the line 44 of FIG. 1 looking toward the handles and showing the grooves extending lengthwise of the piston; and

FIG. 5 is a view illustrating the location of the barrel of the injector device as fitted to the receiving opening of 3,450,191 Patented June 17, 1969 a mold, the piston having forced a substantial portion of the molten material into the mold.

Referring in detail to the several figures of the drawing, 1 indicates the outer wall of the barrel of the injector 2 is the inner wall or chamber of the injector and 3 is the piston or plunger which is mounted within the wall 2. The combined receiving and discharge end of the barrel 1 terminates in a reduced portion 4 which may be either conical or such other shape as may conform to the receiving end of a mold. The combined receiving and discharge end of the barrel 1 is indicated at 4. In FIGURES 1, 2, 3 and 5, the end 4 has a common orifice through which the molten metal may be drawn into the piston and forced outwardly from it. Preferably the end wall of a mold will have the mold opening so shaped that it will fit the discharge end 4 of the device. Substitute plates may be used on the mold to provide shapes conforming to the end 4 of the injector device. Leading inwardly from the extreme end of the part 4 is a duct 5 through which molten material is sucked into the chamber of the injector under the influence of the action of the piston 3.

The outer wall of the barrel 1 is supported by a framework 6 and its associated parts as will be described. This framework includes an angular member, one arm of which is securely mounted on the under surface of the barrel 1 by the use of the screws 6. The frame 6 extends downwardly and at its lower end is a spacing member 6 extending laterally to the barrel 1. At the extreme end of the spacing member 6 most distant from the angular member 6 there is an upwardly extending handle member 7, on the upper portion of which there is provided a hand grip of wood 8 or other conductor resistant to the transference of heat. This hand grip portion is secured by suitable screws 9.

Means for manipulating the plunger or piston 3 is provided by means of a handle portion 7 which is firmly connected to the extreme outer end of the piston. At the upper portion of the handle 7 is a grip portion 8 secured by means of screws 9 as similar to the handle portion at the upper end of the other handle.

Protecting means for insuring against discharge of gases or accidental sprinkling of molten metal is provided by means of a plate 10 mounted just above the discharge end of the barrel. This is shown in FIG. 2 as conforming to the contour of the upper surface of the barrel as being three-sided in cross sectional shape. This plate may be secure-d as desired. This plate 10 is shown in FIGS. 1, 2, 3 and 5.

Another form of protecting plate is shown at 11 in FIGS. 1, 2 and 4 as being in the shape of a washer encircling the piston or plunger 3 and adjacent the end of the barrel 1.

Referring to FIG. 5, it will be observed that a removable plate 12 is shown on the end of the mold next adjacent the extreme end 4 of the barrel.

Referring further to FIG. 5, it will be observed in FIGS. 3, 4 and 5 that the piston 3 is provided with grooves 3 on its opposite sides and in FIG. 4 the grooves are indicate-d as V-shaped. These grooves serve for the escape of gases from the interior of the chamber 2 lengthwise, rearwardly toward the handle 7. The protecting disc 11, above mentioned, thus serves to prevent any splattering of metal which might pass out through the grooves 3 Preferably the end of the barrel having the reduced portion 4 is detachable from the main body of the barrel. In this arrangement the barrel is provided with an inwardly extending opening 13 which is adapted to receive the end of the nozzle member 4, the outer end of which is adapted to fit a mold opening. Substitute nozzle shapes may be provided for the opening 13.

The nozzle 4 may be secured within the barrel 1 by any suitable means. The nozzle and barrel may be screw threaded or if the nozzle is simply slidable within the inner wall 2 of the barrel 1, it may be secured by a suitable fastening screw mounted on the exterior of the barrel and extending through the barrel to engage the exterior surface of the nozzle 4.

I claim: 1. A submerging injector for handling molten material, comprising a barrel adapted to receive and to discharge molten material through a common orifice to a mold, a supporting frame for said barrel, an upwardly extending handle secured to said frame and whereby said frame may be manipulated, a piston within said barrel adapted to draw molten material into said barrel and to force molten material outwardly through a common orifice into a mold, an upwardly extending handle connected to said piston and by which said piston may be operated manually, a bafiie-like shield mounted on said piston and located at the exterior of said barrel and in the general shape of a flat washer serving to prevent rearward discharge of metal spray lengthwise of said piston, and a nozzle at the orifice end of said barrel adapted to fit into the receiving end of a mold opening.

2. A submerging injector of the type defined in claim 1 in which the piston has on its opposite sides grooves extending lengthwise thereof whereby gases from within said barrel may escape.

4 3. A submerging injector of the type defined in claim 1 in which the piston has on its opposite sides V-shaped grooves extending lengthwise thereof whereby gases from within said barrel may escape.

:4. A submerging injector of the type defined in claim 1 in which the discharge end of the barrel is provided with a nozzle, and a shield mounted on the end portion of the barrel overhanging said nozzle to prevent scattering of molten metal.

References Cited UNITED STATES PATENTS 356,200 1/1887 Ives l83.5

760,027 5/1904 Selley 183.5 1,078,440 11/ 1913 Jacobs l83.5 1,216,892 2/1917 Vasica 164312 XR 2,704,379 3/1955 Bunker 183.5 3,058,450 10/ 1962 Lissau. 3,242,600 3/1966 Boxer et al 92l81 J. SPENCER OVERHOLSER, Primary Examiner. R. SPENCER ANNEAR, Assistant Examiner.

US. Cl. X.R.