US1438633A - Flask fitting - Google Patents

Description

E. J. BYERLEIN.

FLASK FITTING.

APPLICATION FILED MAR. 8. 1921.

1,&38,633. Patented Dec. 12, 1922.

Patented Dec. 12, 1922.

hdtdtiti EEi-LE J. BYEBLEIN, OI BLZILTK AUKEE, 'WISQOIG'SI IN.

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Application filed March 8, 1921.. Serial No. 450,582.

To ktZZ whom it may concern:

Be it knownthat T, J. BYnnLnIN, a citizen of the UnitcdStates, and resident of Milwaukee, in the county of Milwaukee and Statev of F/Visconsin, have invented certainnew and useful Improvements in Flask Fittings; and I do hereby declare that the following is a full, clear, and exact description thereof,

This invention relates to improvements in flask fittings which are adapted particularly for use in connection with the flasks used by inolders for holding the'molds which are usually made of sand.

The fittings with which these flasks are customarily provided include sockets and pins for holding the flasks in their proper relation to each other during the molding and casting process. in order to form a perfect casting it is necessary that the sockets should seat firmly and snugly on the pins, and it has been found that owing to the rough treatment to which these flasks are necessarily subjected during the process of molding and casting, the sides of the flask become warped and the distances between the pins or the sockets become altered so that they no longer fit properly together.

it has been a common practice to correct this difficulty by providing means for adjusting the sockets in order to secure proper registration of the same with the pins. This adjustment has to be made frequently and often consumes a great deal of time thus greatly increasing the production costs.

With these facts in mind it is the general purpose of my invention to provide means for securing the flasks which will automatically accommodate itself to these varying conditions without any previous adjustment thus saving the labor and loss of time consumed in making the adjustment.

A more particular object is to provide an automatically adjustable device which permits the use of accurately fitted round pins without the necessity of allowing a great amount of clearance in the pin sockets to con'ipensate for variation in the pin centers.

One practical form in which my invention may be embodied is shown in the accent panying drawings, in which Figure 1 is a side elevation of a set of flasks with my invention applied thereto.

9 Figure 2 is a 'sideelevation of my invention looking toward theleftin Flgure 1.

, Figure 3 is a bottom plan view of the invention.

Figure 4 is a vertical sectional View on the line 47 4 of Figure 5, and

Figure 5'is avertical sectional e line 5 5 of Figure 4:. Referring now in detail to, the several parts, the flask A isprovided with fittings which include the upwardly projecting pins 1 and 2, which are adapted to be connected with the fittings 3 and i of the flask B. The fitting 3 consists of a socket which is fixed to the flask B and fits snugly over the pin 1. The fitting 4c is formed with a horizontally extending portion 5, which has a rectangular opening 6 therethrough. This opening is surrounded by a flange 7 which forms a view on fig guideway on which the socket 8 is adapted to slide. The socket 8 is provided on its opposite sides with channels 9 which receive the flange 7 and the bottoms of the channels form comparatively long flat surfaces 10 which fit smoothly against the edges of the flange 7. One side of the socket is provided with an car 11 through which is en gaged the resilient rod or spring 12, the ends of the rod being secured in the cars 13 and 14 formed in the fitting at either side of the opening 6.

The opening 15 formed in the socket 8,.

is made of the proper size to fit closely the shank of the 2 and the end of the pin is tapered sunuently so that it will enter the hole 15 notwithstanding the fact that one. of the flasks may be bent or warped. The strength of the spring rod 12 is sufficient to hold the socket where it may be engaged readily by the point of the pin, but the spring will easily yield to allow the flask to be firi'nly seated and the socket to ride down over the shank of the pin.

it wil be seen that I have provided a fitting which is automatically adjustable to acconnnocate itself to any conditions which are li rely to arise during the process of molding and casting, and while l have example, the socket may be fixed on its flask and the pin yieldably mounted. Such a construction is particularly adapted for use in molding where the half molds are made from boards or plates.

1 claim asmy invention:

1., A device of the character d scribed comprising a flask having a plurality of pins thereon, a. flask having a plurality of sockets adapted to register with said" pins, the supporting means for one 01"- said: sockets including a bracket secured to the flask and haying a guideway, said socket being rec iprocable. insaiol guideway, and a normally straight spring disposedtransversely to the guideway and connecting the socket with the bracket, said spring exerting resistance to movement in either direction and compensating for variation in the distance between the pins.

2. A device of the character described comprising a flask having a pin on each of two oppositely disposed sides, a flask having sockets adapted to register With said pins, one of said sockets being fixedly secured to the flask, the other being yieldably supported, the yieldable supporting means including a bracket secured to the flask and having a guideway in alineinent with the fixed socket, the yieldably supported socket having flat surfaces engaging said guideway and being reciprocable therein, and a normally straight spring strip disposed transversely to said guideway and ha *ing its ends secured in said bracket and its intermediate portion engaging said socket to resist said reciprocation.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

ERLE J. BYERLEIN.

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