US1557072A - Molding flask - Google Patents

Description

Oct. 13, 1925.

J. R. MOWANE HOLDING FLASK Original Filed May 12. 1923 cfmzasfijfonfine,

' INVENTOR,

iiiiiiii mm lllll WITNESSES ATTO RN EY Patented Oct. 13, 1925.

PATENT JAMES McWANE; or BIR ING A Arum;

MOLDING 'ELASK'.

an a} application: me. May 12; 1923; Serial lNJOi; essgeea: mama 1 andi this mamas mist august.

axe/1924; serial, 1m. vasooa Ta ail: may! concem:

Be. it knownthat; I, JAMESrRnMQWAEE; citizen of the United Statea-residingatBir' mingham, in the county of: Jefferson and Statemfi Alabama have; invented news and useful Improvements. in "MoldinggFlaskfs, ,o fi which the following is a specification.v

This; invention lates stqilasks: for: molding, purposes,and the: present application is; a division of an application for patent filed by. me May 12, l923, on; a pipe. foundry plant, Serial. No. 638,639;

The. object of the present invention, isto improrvethe; construction of flasks-used themanufactureof cast iron pipegor other analogous articles of elongated. form, in order toufacilitate handling of thesame by overt-head, power-driven hoisting means, used. pipefoundries.

Anothenobjiect is: to provide meansuat each L end of each cope and drag section or member v ofthewflask whereby a quick and safe hitch mayv be made to a the: said hoisting means to pick up and move said members in the process of molding and shaking out, and to enablethe drags to bet inverted, while suspended by the hoisting means, without interference with or entangling the latter.

A full and complete understanding of the invention may be obtained from a consideration of the following detailed description, taken in connection with the accompanying drawing forming a part of this specification, it being understood that while the drawing shows a practical form of the invention, the latter is not to be confined to strict conformity with the showing thereof, but may be changed or modified, so long as such changes or modifications mark no material departure from the salient features of the invention, as specifically pointed out in the appended claims.

In the drawing, in which similar reference characters designate corresponding parts throughout the several figures Figure 1 is a plan view of a flask comprising cope and drag members equipped with the present improvements;

F igure 2 is a side elevation of the upper or cope member of the flask; and

Figure 3 is an end view of the same, the lower or drag member being indicated in dotted lines.

The drawing illustrates a flask in use in the manufacture otieast iron pipe; the seme=- QKISI IigRQiJtWQ oppositelnispesed-mem Q ZSi fittedf -togethem and haeingthe sendmo d formed t erein, th t Q 'Bg,,0fsQQ l 3 Q sepa ablein sush meld to remo e-,the-n pee other rticle after test ng, i bei'mg. unde stood hat improvementse applicable o flasks of, other kindsfor producing articles otherv than castiron), pipe), 7

In Figure l uppermost .mem-ber'of the; flask, vkimwn as. the-scope 1,,is, shown at B10111.- gated formand consisting Jot a-hollow, cast) metalshell, open on its u 01" ilde side,

and also open on a the top, and having enslarged ends 2 so asr to providesspacer at. either end for forming the bellend of the pipe. The illustrated flask is, designed. for use in connection. with-the multiple-lipped pouring ladle, disclosed in the aforesaid application, which. necessitates; the'prov ision: of theplw raiityof peeri g, ope ngs 7 or. gates ShEWn in; SaidFigure 1, there beingpref-I erably, a division. plate l placed in the'sandt midway between each gate- 3, all of which,

however, isnoteeoneerned' with the; present.

invention, as the latter may be appliedto any other form of flask.

As shown in Figure 3, each of the flask members, that is to say, the cope 1 and the drag 5 (shown in dotted lines), is provided with side walls 6 having a double inclination, so that each has a relatively wide top 7 and a' narrow bottom 8, which formation reduces the quantity of sand necessary and facilitates nesting or stacking the copes and drags, the narrow bottoms being placed within the open top of the member below, as will be readily understood.

Each cope and drag is provided, at each end, with a pair of lugs or trunnions, formed integrally therewith, or otherwise secured to the same and extending longitudinally thereof. The trunnions 9, one at each end, are in longitudinal alinement with each other and located adjacent to one inclined side wall 6, as shown in Figure 1, the said pair of trunnions being also in the same horizontal plane with each other and adjacent to the wide top 7. The other pair of trunnions 10 are located in the same relative position to the other inclined side wall of the member, and in a horizontal plane with the trunnions 9, and all of the trunnions are provided with a circumferential groove 11 ad acent to their outer ends.

The trunnions 9 are considerably longer than the trunnions 10, and the grooves thereof are located beyond .the endsof the latter,

and they are so located "with' relation to the entire flask section, that the latter maybe conveniently handled and transported. from the molding machine to the pouring floor,

without disturbing the sand therein,;when' the cablesor :falls from the aforesaid hoisting means have been hooked or connected to th'e'grooves-in the several trunnions. The said cables or falls are preferably formed of a-single length, having-their ends formed into loops to engage the trunnions, and

having theintermediate portion thereof passed over a sheave suspended at each end of aspreader bar, which in turn, is adapted to. be elevated by a travelling hoist.

The prime object in the provision of the long and the short trunnions 9 and lO'respectively, is to permit'the copes and the drags to be inverted while being held by the overhead supporting cables or falls, without the necessity for separate supporting means,

' and Without disengaging the same from the cables. It will be seen that the grooves 11 ofthe longer trunnions 9, being a greater distance apart, will cause the supporting cables or falls connected thereto topa-ss on the outside of the corresponding cables or falls connected to the short trunnions, as the flask section is rocked or turned about its longitudinal axis. This rocking or turning action may be accomplished by hand, as-it is only necessary to lift one longitudinal half of the said section. This turning action is necessaryin the case of the lower or drag sectlon, in order to lnvert the same 1n suspension after it is lifted ofi" the molding machine. g

From the foregoing it will be seen that a simple means has been provided for supporting flask sections or other analogous members and permitting. the same to be inverted, while under suspension, the said means being easily formed with the said section or applied thereto,-and in no way interfering with the stacking or nesting or otherwise handling the same. .1 I

What is claimed is 2- 1. A flask section having two pairs 6r opposite pairs 1 one pair being correspondingly longer than the trunnions of the other palr. 4. A flask section having two pairs 0 alined trunnions, one pair-being longer than the other, each of said trunnions having acireumferential groove adjacent to the free, outer end thereof.

In testimony, that I claim the foregoingas my own, I have hereto aflixed my signature.

JAMES RrMowANE.

Images