US3005243A - Connecting and alignment brackets of molder's flask - Google Patents

Description

Oct. 24, 1961 F. J. YEARLING ETAL 3,005,243

CONNECTING AND ALIGNMENT BRACKETS OF MOLDERS FLASK 2 Sheets-Sheet 1 Filed June 8, 1959 TMJF l I III u f rj:

1961 F. J. YEARLING ETAL 3,005,243

CONNECTING AND ALIGNMENT BRACKETS OF MOLDERS FLASK Filed June 8, 1959 2 Sheets-Sheet 2 Z5 34 1?? (/43 r-zro vs flew-e16 yeazegir'zy 0s gob FMQ Ji /i Gel-Co 1 F189 Uted Seam Patent CONNECTING AND ALIGNh/IENT BRACKETS Frank J. Yearling and Joseph F. Mavri, Milwaukee, W1s., assignors to International Harvester Company, Chicago, Ill., a corporation of New Jersey Filed June 8, 1959, Ser. No. 818,771 1 Claim. (Cl. 22-110) This invention relates to an improvement in a molders flask. More specifically the invention relates to an improved bracket arrangement for connecting a cope and drag in an assembled flask.

In general a molders flask, or mold box, consists of a cope and drag which are suitably connected together by means of brackets projecting outwardly from opposite sides of the cops and drag, the brackets including alignment pins which suitably mate with openings in the other brackets for permitting the cope and drag to be assembled together as a unitary flask structure. The drag thus may include brackets having suitable pins and in turn the cope may include brackets having bushings which mate with the pins during assembly operation. This of course means that a cope can only be used as a cope and likewise a drag can only be used as a drag. In view of this circumstance it is necessary to have many of these devices on hand for foundry operations since they can only be used in the manner mentioned. It is highly desirable therefore to provide an improved drag and cope which can be used interchangeably to produce either the cope function or the drag function. It i a prime object of this invention therefore to provide an improved aligning bracket and connecting arrangement for flask sections whereupon the sections may be interchangeably utilized as a drag or as a cope thus providing for greater use and facility of the parts in foundry operations.

A still further object is to provide an improved aligning and connecting arrangement for foundry flask sections, said arrangement being simplified in structure and providing for increased utility of the respective sections.

These and other objects will become more readily apparent from a reading of the description when examined in connection with the accompanying sheets of drawings.

Inthe drawings:

FIGURE 1 is a perspective view of an improved assembled flask embodying the features of the invention;

FIGURE 2 is a perspective view similar to FIGURE 1 showing another arrangement of a flask;

FIGURE 3 is an enlarged plan View of the connecting and alignment brackets of an improved flask section;

FIGURE 4 is a fragmentary end view showing an alignment and connecting bracket of an improved flask section;

FIGURE 5 is an enlarged side view in elevation showing the opposed connecting brackets of an improved flask section;

FIGURE 6 is an enlarged cross sectional view taken substantially along the line 6-6 of FIGURE 3;

FIGURE 7 is an enlarged cross sectional view similar to FIGURE 6 showing, however, the assembled relation of a pair of connecting brackets of a cope section and a drag section; and

FIGURE 8 is a perspective View showing an alignment pin.

Referring now to FIGURES l and 2, an assembled molders flask is generally designated by the reference character 10. The flask 10 includes a pair of sections generally designated at 11 and 12. In general the upper section is designated in the art as a cope and the lower section is designated as a drag. With the present im- 3,005,243 Patented Oct. 24, 1961 2 provernent the cope and drag are interchangeable and are referred to also as flask sections.

The section 12 comprises opposed upright walls 13 and 14 suitably connected in rectangular relation and the section 11 includes opposed upright walls 15 and 16 also suitably connected in box-like or rectangular relation. The section 12 is provided with upper and lower flanges 17 and the section 11 is provided with upper and lower flanges 18.

The flask section 12 is provided with an alignment and connecting bracket 19 supported on opposite upright walls 14. Similarly the section 11 is provided with an alignment and connecting bracket 20 supported on opposite upright walls 16. The brackets 19 each include a horizontal member 21 projecting laterally outwardly with respect to the lower flange 17. Similarly the bracket 20 comprises a horizontal member 22 projecting outwardly from one of the flanges 18. The brackets 19 further include laterally spaced upright gussets 23 connected by means of a transverse strap 24. The brackets 20 include upright gussets 25 suitably connected by a transverse strap 26. The connection of the brackets 19 and 20 and associated parts of the sections 11 and 12 may be connected by means of welding or other seucring means.

Referring now particularly to FIGURES 6 and 7 the horizontal members 22 are each provided with a large diameter opening or bore 27 open at opposite ends. Each of the horizontal members 22 further are provided with a small diameter opening or bore 28 also open at its opposite ends. The openings 27 and 28, as best shown in FIGURE 3, are horizontally space on a center line which is substantially parallel to the upright walls 14 of the section 11. The members 22 are also provided with an undercut annular recess 29 and a large diameter sleeve 30 is suitably secured in the bores 27. The large diameter sleeve 30 also includes a shoulder 31 which is partially seated within the undercut recess 29. The large diameter sleeve 30 also includes a vertical bore 32. A small diameter sleeve 33 is secured in the small diameter bore 28 of each horizontal member 21, the said sleeve 33 including a vertical bore 34. The member 22 also includes an annular undercut recess 35 which supports an annular shoulder 36 on the small diameter sleeve 33. The sleeves 33 also are provided with projecting ends 37 which project outwardly with respect to the horizontal members 21.

Each of the members 21, as shown in FIGURE 7, also include a large diameter opening 38 and a small diameter opening 39. The members 21, each further include an annular undercut recess 40 and a large diameter sleeve 41 is tightly secured within the large diameter opening 38. A shoulder 42 on the sleeve 41 is partially seated within the recess 40. The sleeve 41 also includes an open end bore 43. A small diameter sleeve 44 is secured within the bore 39, said sleeve including a bore 45. The member 21 also includes an annular recess 46 within which a shoulder 47 is partially seated, the said shoulder being provided on the sleeve 44. The sleeve 44 also includes a projecting portion 48 which projects outwardly from the bore 39 with respect to the horizontal member 21.

An alignment pin 49, as shown in FIGURES 6, 7 and 8, comprises a tapered body 50 and a stem 51.

While portions of the flask 16 have been referred to as sections, in eflect they may become eithercope or drag depending upon the position which they are utilized. It is apparent from FIGURE 3 that the sleeves 30 are in transverse alignment with the sleeve 33 and this arrangement is also true with respect to the sleeves 41 and 44. During use either of the sections 11 or 12 may be positioned in cope position or drag position as shown in FIG- URES l and 2.

Referring to FIGURES 6 and 7 the section 1.1 is in the drag position and the sleeves 33 and 30 face upwardly. Alignment pins 49 are now inserted into the bores 34 as shown in FIGURES 6 and 7. The section 12, which is being used as a cope, has its projections 45 facing downwardly and by means of the pins 49 the sleeves 41 are placed in alignment with the sleeves 33 and the sleeves 44 are placed in alignment With the bores 32 and the sleeves 30. By lowering the section 12 then upon the section 11 the sections are placed in the assembly shown in FIGURES 2 and 7. In FIGURE 2 the section '12 is utilized as a cope and the section 1 1 is used as the drag and in FIGURE 1 they are reversed. The assembly operation is identical for both.

It can be seen that by virtue of the novel construction of the alignment and connecting brackets 19 and 20 the sections 11 and 12 can thus be utilized as either cope or drag. Thus greater use for the sections can be made with fewer sections needed in each individual foundry. It is no longer necessary to designate certain sections as copes onlyor drags only. Each may serve the dual purpose of a drag or cope. Thus great savings in capital expenditures may be made.

By virture of the simple and novel design of the brackets maintenance also is greatly reduced.

Thus it is apparent that the objects of the invention have been fully achieved. It must be realized that changes and modifications may be made without departing from the spirit of the invention as disclosed or from the scope of the appended claims.

. What is claimed is:

A molders flask comprising cope and drag sections, each section having upright spaced and opposed side Walls, a pair of connecting and aligning brackets on opposite side walls of each section, each bracket including a horizontal member connected to a side wall and projecting laterally outwardly with respect thereto, said horizontal members each including first and second horizontally spaced openings, a large diameter sleeve permanently secured in each of said first openings, said large diameter sleeve having a large diameter bore, a small diameter sleeve permanently secured in each of said second openings, said small diameter sleeve having a small diameter bore, each small diameter sleeve having a projecting portion extending vertically from each said horizontal member, the small diameter sleeves of each section being in transverse alignment with the large diameter sleeves of each section, alignment pins for said sections, each pin having an elongated cylindrical body and a smaller diameter extension, whereby during assembly the extensions of said alignment pins are supported Within the bores of said small diameter sleeves in mating relation and said small diameter sleeves engage the bores of said large diameter sleeves in mating relation whereby said sections are assembled and each section may be used interchangeably as either a cope or a drag.

References Cited in the tile of this patent UNITED STATES PATENTS 1,376,602 Cannon May 3, 1921 1,476,501 Ferry Dec. 4, 1923 1,595,094 Hines Aug. 10, 1926 1,808,093 Wood June 2, 1931 FOREIGN PATENTS 750,767 Germany Jan. 25, 1945

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