US1482086A - Flask strap - Google Patents

Description

Jan. Z9 1924,

J. H. MAYWORM FLASK STRAP Patented Jan. 29, 1924.

UNITED STATES LP atente ATENT orties,

JOHN E; ivraYwoEM, or MILWAUKEE, wisconsin, Assreivon To ifi/'Ens STEEL cori- PANY, or WEST Arms,- wrsoonsrn. i v

ELASK STRAP.

appiieation mela May 3,

To all whom t may concern:

Be it known that I, JOHN H. `MAYWORM, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Flask Straps; and l do hereby ydeclare that the following is a full, clear, and exact description thereof.

The invention relates to improvements in liask straps, and more particularly to a type of the same adapted for use in connection with cope flasks or molds.

It is the present practice to make use of transversely extending wooden straps or bars for the purpose of anchoring or supporting core in position with a liask mold, and these straps have to be renewed with each pouring of the material to be molded, inasmuch as they are burnt out or otherwise destroyed in each molding operation, and, consequently, are a source of continued annoyance throughout successive molding operations, causing an undue and otherwise unnecessary expenditure of time and money in such operations.

The principal object of the invention is therefore to provide for an improved strap construction of the class mentioned, and one of a comparatively long life, whereby to be used for indeiinite periods throughout successive molding operations, and, c0nsequently e'ect a marked saving in the cost of such operations, as well as a corresponding saving in the time required for the accomplishment of each of such operations.

Another and equally important object of the invention is to provide for a flask strap of the type specified, and one of a nature to be adjustable for use on molds or flasks of various sizes, and at any desired or necessary angle with respect thereto, such as is not possible in the use of the wooden straps as aforesaid by reason of the fact that the ylatter straps must be made in varying` lengths, one length correspondingly for each particular sized mold or iask used.

A further and important object of the invention is to provide for a flask strap of the character set forth, and one capable of being readily and easily removed from position, or loosened from such position, for the easy shaking out of the sand content of the mold or flask, such as cannot now be readily accomplished by reason of the wood- 1921.v serial No. 466,576. p y

With the foregoingandother objects in View, the invention resides in the certain novel and useful construction and arrangement `of parts as will be hereinafter more fully described, set forth in the appended claim, and illustrated in they accompanying drawing, in which Figure 1 is a top plan view of a mold or flask showing several of the preferred einbodiments of the invention as applied thereto, and

Figure 2 is a vertical transverse section taken on the line 2-2 of Figure 1.

Referring to the drawing, the numerals 10 and l1 indicate the oppositev side walls of a conventional form of mold box or ask upon the top edges of which are adapted to be positioned and secured the transversely extending flask straps from which the core is to be supported in position.

The improved flask straps, as shown, comprise a long metal bar 12 having an inverted substantially U-shaped outer end portion 13 adapted to be engaged over the top edge of one of the vertical sidewalls, the side wall l0 in the present instance, and having a pair of s aced projections or'circular lugs 14 dispose laterally inward from its inner end, and a shorter metal bar 15 having its inner end disposed in overlapping relation with respect to the inner end of the longer bar 12 and provided with a series of spaced circular openings 16 adapted to be selectivelyengaged by the projections or lugs 14 of the latter bar 12. The outer end of the shorter bar 15 is also provided with an inverted substantially U-shaped portion 17 adapted for engagement over the top edge of the other of the vertical side walls, the side Wall 11, of the mold box or flask.

The straps thusl formed are adjustedto a proper length corresponding yto the width of the mold box or flask so that the inner of the legs of the inverted U-shaped poi'- tions 13 and 17 lie in close proximity to the opposed faces of the complemental side walls 10 and l1, when suitable wedge memill bers 18 and 19, respectively, will be driven drawings, the straps nia-y be disposed' Y securing the same in such'diagonal or angular position, corresponding angular faced wedges 2OV are to he provided. The lower edges orp hothcof the bars 12 and 15 are preferably and correspondingly slotted or toothed, as at 2l, for allowing clearance of the usual lugs vor projections of thepatterns (not shown) thereunder, when operatiyely positioned andV supportingthe pattern within the niold box or ask...

It is well understood that, while the subject-matter ofthe present application has heen described and illustrated herein in specific terms and details of construction and arrangement, Various modifications of the rsance and changes in size, configuration and manner of adjustment'and'use,'inay be resorted to without 'departing from 'the spirit of the'invention'fo'r from the scope of the claim appended hereto. Y

Having thus fully described the invention, what is clai1ned,is:

A pattern supporting strap adapted for longitudinal adjustment, hooks carried by the end portions of vsguldstrap Jfor securing the saine toA a mold box, and n'o'tches'formed'. Yon the lower edge of said strap and adapted to support the pattern within a. nioldbox.

In testimony that Inclairn therforegoing I have hereunto set my hand at Milwaukee,

in the county of Milwaukee and State of v Wisconsin. l

JOI-INY H. MAYVVORM.

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