US1426512A - Sectional mold - Google Patents

Description

J SCHIFFHAUER.

S ECTIONAL MOLDi v APPLICATION FILED SEPT.2I, 1921.

Patented Aug. 22, 1922. v

' fosepfi ghfffzaw W JOSEPH sonrrrrmunn, or cr-rrcneo, rnmnorssncrronen ore),

Application filed September 21,1921, Serial No. 502,093.

To all wkomit may concern:

Be it known that J OSEPH SGHIFFHAUER, a citizen of the United States, residing at Chicage, in the county of Cook'and State of Illinois, has invented certain new and useful Improvements in Sectional Molds; and he does hereby declare the following to be a full, clear, and exact description of the in'- assembled, and, when assembled, form a rigid and substantially leak-proof-vessel, the manner of assembling and securing together of the severalparts producing complete cooperation therebetween.

I Secondarily, it is my object to provide, in

a sectional mold, a stand Or support engaging the several sections one to another to seal the crevices therebetween, the stand itself adding to the stability and rigidity of the mold and rendering it liquid tight.

These and such other objects as may hereinafter appear are attained by the novel construction, arrangement and form of the several parts of the device to be described and claimed in the specification which follows. Reference will notbe had to the drawing forming a part of this specification and in which v Figure l is aside elevation of a complete device, one end being partlybroken away to show how I secure correct registration of the mold sections; I 1

Figure 2 is a bottom view; 5 Figure 3 is a vertical transverse section;

Figure 4 is a detail of one extremity of the stand for my device; and

Figure 5 is a transverseverticalsection of a slightly modified form ofst'and.

Similar parts are referred to in the specification which follows andin the several figures of the drawing, by like reference characters. i

In the embodiment of my invention herein disclosed, the deVicecompr'ises two mold sections 6 and 6 a stand 7, and a cover member 8. I Y

'Any desired figure may be depicted by the mold sections 6 and 6, as, for example, the

Specification of Letters Patent. Pai;gnted A 0; 22 -1,922

pig shown in Figures 1 and 2; Said sections are conveniently stamped out of thin material but may 'be shaped many other preferred manner.- Along the bottom and ends of sections 6 and 6* are unbroken marginal flanges, designated by the ordinal 9 When the sections 6 and 6 are correctly registered one with another, these flanges 9 abut for their entire length and width.

' To insure such registration, one section,

say 6", has a seat shaped similarly to aball seat and the other section, 6" is provided with a complemental projection, the registering means being designated 10 in the drawing. These means 10 I are positioned close'to the'extremities of the flanges 9 for reasons later to be apparent, and, maybe accurated and economically made by holding the mold sections 6 and 6 in proper align ment while allowing a round headed tool of small diameter to descend sharply; upon Along therupper edge ,of each section, 6

and 6 flanges 11 are formed These flanges follow the shape of the mold, generally,

but have more regularity'in'their' contour, 5

If preferred, the edge of the material may be bent outwardly andback upon itself to provide a dull top edge for the sections 6% and 6 and, at the same time, to assist in preventing the accidental displacement of cover 8therefrom.

Said cover 8 comprises a flat'portion en tirely covering the mold andis provided with a depending rim 12 sliding over and.

grippingtthe flanges 11 which it completely'j surrounds. I r t The body of the stand or support 7 is, substantially, of U shape in cross section, and

other available means. The longitudinal contour of; the stand corresponds with that may be 'cast," sta1nped or formed any of the flangesonthemold sections 6 and 6 I The latter are adapted to be, inserted into a trough or groo've l3 extending at a uniform depth throughout the length'of the stand 7.

A number of winged screws, 14, are'arrangedatintervals to penetrate one side of the body of stand 7, so that when sections 6 and 6 properly registering one with an other, are inserted "into the trough or, groove 18, the screws 14 on the one side of trough or groove 13, will bear against flange9 offlone section of theqmoldto force the flange 9 of the other section againstthe opposite wall of trough or groove 13 whereby to seal" the crevice between said flanges. Tightening of the screws 14, of course, increases the closeness of the contact between the flanges 9.

Bosses 15, as shown, are arranged upon stand 7 to allow a greater length of threads for each screw 14:, reducing strain and increasing wear. At spaced points, laterally projecting legs 16, are provided for stand 7, said legs reinforcing the sides of the stand 7 as well as holding the device upright.

At each end of stand 7. one wall of the trough or groove 13 has a downwardly extending vertical groove 17 of suflicient diameter and extent to admit the registering means 10 (see Figure 4). Grooves 17 are provided to prevent the possibility of distortion of the sections 6 and 6 when in forced contact as well as to insure a proper seating of sections 3 and 6 in stand 7. It will be noted that two of screws 14 are so positioned that when inwardly rotated they seat themselves squarely within the center of the depressedside of registration means 10, securing the mold sections 6 and (S 'against accidental displacement from the stand 7, no matter in what held.

/Vhen the mold is wanted for use, the interiors of sections 6 and 6 are cleansed, and, if necessary, coated or dusted. They are-then placed together, correct relation being assured byregistering means 10, after which the flanges 9 are inserted into trough 13 so that the oppositely disposed register ing means 10 slide downwardly into grooves 17 Screws 14 are rotated until their further inward progress is prevented. The device isnow ready to receive the material for molding.

This is poured or pressed in and, if necessary, the mold is put aside for the material to congeal or become set, the cover 8 being slipped on to prevent bulging of sections 6 and'fl as well as to protect the contents of the mold.

To remove the molded material, the device may be disassembled in an order directly reversed to that of assembly with or without inversion of the mold, or the cover 8 may be made to serve as a receptacle for the molded material, in which event the mold is first inverted, cover on, and the stand 7 then removed, which removal will release sections 6* and 6 A modification of the stand member is shown in Figure 5. In the modification,

the stand 7 comprises a flat narrow sheet of material first folded to form an equal sided narrow V and then bent longitudinally to the proper shape to receive the flanges of the mold sections. The material of 7 is flexible and is reinforced by the use of flexible feet 16, which resist the spreading of the! like body of the stand 7.

In either construction of the stand, the

position said stand is,

sections of the mold are held together so tightly that material can not pass therebetween, but even if it should, the quantity would be so slight and so well intercepted in the trough of the stand (the bottom of which abuts the flanges of the mold sections) that solidification would immediately ensue to seal the crevices against further leakage.

JVhile I have made a complete disclosure of my invention, I have not described each and every possible embodiment thereof, nor have 1 shown the changes, modifications, and alterations which the parts may undergo without departing from thespirit of the invention. I do not, therefore, desire to be understood to limit myself to the specific embodiment of my invention here shown but, on the contrary, wish to include all forms of the invention falling within the scope of the claims appended. v

What I claim as new and desire to procure by Letters Patent of the United States, is:

1. A mold comprising sections, a stand arranged to clamp said sections together, and means for aligning said sections, said aligning means cooperating with the stand to prevent displacement of the sections therefrom. I I

2. In combination, a mold comprising sections having depending abutting flanges, and a stand adapted to close upon said flanges to seal the crevice therebetween, one of the sections having a pocket in its flange, the other of said sectiojns having in its "iange a projection adapted to be inserted. into said pocket when said sections are aligned, the stand having a groove adapted to admit said pocket.

3. In a mold comprising sections having abutting flanges, a clamping member engaging said flanges, said clamping member comprising a grooved body having screws passing through one sidethereof to engage the said flanges.

i. In combination, a mold comprising a number of sections, having depending end and bottom flanges,'the flange of one section being provided with pockets, the flange of the abutting section having projections engaging in said pockets to register one section with the other, a flexible clamping member arranged to receive said flanges whereby to produce close contact therebetween, and a covermember for maintaining the sections against bulging.

5. A mold comprising sectional mold members, said member being stamped from sheet material and having end, top and bottom flanges,,the bottom and end flanges of and abutting,

flanges into close contact, the end flanges having at their upper extremities interfitting stamped depressions to hold the sections in alignment, the clamping member having short vertical grooves within its 10ngitudinal groove to admit the depressions in said flanges, additional screw members in said clamping member insertable into said depressions to prevent displacement of the mold sections from the clamping mem- 10 her, and a cover member surrounding and engaging the top flanges of said sections to prevent distortion of said sections.

In testimony whereof I aflix my signature.

JOSEPH SOHIFFHAUEB.

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