US1447599A - Flask guide - Google Patents

Description

Mar. 6, 1923.

L. P. OAKLEY FLASK GUIDE Filed Jan. 24, 1921 Patented Mar. 6, 119233.

UNETEQ STATES [P rat carton.

LOUIS r. OAKLEY, or ooivnnnsvrnnn, rnnrnivnfiissrerion r ILH. & r. a: noo'rs COMPANY, or oolvivnnsvrnnn, INDIANA, A oonronnrron or INDIANA.

FLALSK GUIDE.

"Application filed January 24, 1921. Serial. iNo. 39,380.

1 0 all whom it may concern:

Be it known that I, LOUIS P. OAKLEY, a citizen of the United; States, residing at Connersville, in the county of Fayette and .5 State of Indiana, have invented a certain new and useful Improvement in. Flask Guides, of which the following is a full, clear, concise, and exact description, reference being had to theiaccompanying drawings, forming a part of this specification.

My invention relates to flask guides for molds. The general object of the invention is to prevent relative displacement ofjthe mold flask sections in the castingoperations. I am aware that guideshavebefore been devised which were capable of accomplish- .ing this same general purpose, but these prior devices have invariably been of a complicated nature, or have required the use of to be entirely impractical. A salient feature of my improved guide is its simplicity. It is easy to operate and may be manipulated without the use of tools.

Various other objects of my invention will appear in the following'detailed description, in which reference is made to the accompanying drawing illustrating the invention.

In the drawing Figure 1 is an end elevation of that portion of a flask to which the improvement of my invention has been applied.

Figure 2 is a vertical cross section taken on'the line 22 of Figure 1, looking in the direction indicated by the arrows, and

Figure 3 is a detail in perspective of the flask guide showing the same partially disassembled f r the purpose of better illustration.

In the three views, the same reference numerals are used to indicate the same parts.

The mold illustrated consists of the conventional flask sections 5 and 6, which are made of wood, cast iron, or any other suit- 45 able material. The section 5 is customarily referred to in foundry practice as the cope and the section 6 as the drag of the mold. The cope carries a bracket 7, secured thereon by bolts 8-8. A fork or bifurcation 9 is provided on the bracket 7, movable between the tines of which is the head 10 of a guide pin 11'. Depending from the head 10 is a tail piece 12 of slightly enlarged cross section, which forms with the head 10 shoulders 13. These shoulders engage the nether side tools in their manipulation, and have proved V of the bifurcation 9. A transverse opening 14 is provided at the outer end of the head '10 of the guide pin through which a clampingwedge'15 passes. The wedge 15 has a retaining pin-16, in its reduced end,'which efiectually prevents removal thereof from the opening 1 1; When the wedge is driven inwardly to the position shown in Figure 1,

.the guide pin is securely held in the bracket in an obvious manner.- r Secured by bolts 17 to the drag 6 is a second bracket 18in the face of Which is cut a V-shaped notch 19. This notch co-operates with the triangularly shaped tail piece 12 of'the guide pin, thereby preventingaccidental disalignment of the flask sections.

Any suitable material may be used in making the brackets and guide pin, al-

though I prefer to make both of the said elements of cast iron, and the wedge 15 and retaining pin 16 of wrought iron. Furthermore, as will hereinafter more clearly appear, it is immaterial in what relation the brackets are secured upon the flask sections as the guide will operate practically as satisfactorily if the brackets are interchanged, so that the bracket 18 is secured to the cope 5 and the bracket 7 to the drag 6.

The device is best adapted for use in the following manner: After the counterpart impressions of the pattern have been produced in the sand in the cope and drag, it is, of course, importantthat when the metal is poured, the cope and drag shall assume the same relation as before, so that the finished casting will be a faithful reproduction of the pattern. In order to insure accurate alignment of the flask sections during the pouring operations, the guide pins, at the time the pattern is placed in the mold and the sand packed and rammed thereabout, are moved inwardly so that the tail pieces 12 engage in the notches 19. The wedges 15 are then given a blow to secure the guide pins to their respective brackets. Thereafter, when the cope is repeatedly removed from, and replaced upon, the drag, the same relation of the two is maintained. The tail piece 12 is preferably of such a length as will insure that the cope properly clears the pattern whenit is lifted from the drag. With the construction illustrated, the guide pins serve to guide the cope just as accurately at entering the notches as when the cope and drag are close together, and it will, of'course, be apparent that the length of the tail pieces is variable as desired to suit given conditions, and the same may be changed without altering the brackets. The

"guide pins with their clamping wedges inseparably'linked thereto are separable from the flasks, and are standard as regardstheir being capable of use With other flasks and are not kept with the flasks when the same are kept in a flask yard. The guide pins arthereiore no't'likely to become broken or While I havede'scribed the' details of -the preferred embodiment of my invention, it

Y is to be-understood that I do not limit myself to these details 'ofconstructiombut desire to cover all adaptations and modificathe appended claim;

What I claim is: The combination with; a pair of flask members; of a" bracket secured tooneof the members a and provided with a laterally opening V-shaped notch, a second bracket secured to .theother member and provided with a laterally elongated slot open at its outer end and having fiat vertical walls, a

ipinihaving a portion formed with flat sides adapted to bear against the Walls of said slot and beinglaterally and "vertically adjustable therein and having shoulders respectively adapted'to engageoneedge" of the respective mus and having air extension formed with a' 'V-shap'ed face adapted to -en'gagesaid notch, :anda-wedge secured to the p111 and transversely movable relatively thereto, the *wedge being adapted to engage edgesof 'said walls op osite the edges "ngagedby said shoulders and toclam'p the "pin against move'mentin said slot.

'In witness whereof I hereunto subscribe 'my name this 19th day of January,'1921. tions coming within the spirit and scope of i LOUIS P. OAKLEY;

Witnesses:

a Q E. JOHNSTON,

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