US1577132A - Mold for water-closet-bowl rims - Google Patents

Description

March '16 1926. 1,577,132

7 A. V. LAWTON Filed June 27, 1925 4 Sheets-Sheet 2 3 March 16 1926.

A. V. LAWTON Q 4 Sheets-Sheet 5 A. V. LAWTON March 16,1926.

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Patented Mar. 16, 1926. I i

UNITED STATES PATENT OFFICE.

ALFRED v. LAW'ION, 0 DECATUR, ILLINOIS, ASSIGNOR T0 ADOLPI-I MUELLER,

. TRUSTEE, or DECATUR, ILLINOIS.

moLnEo WA'rER-cLosET-BowL RIMS.

Application filed June 27,1925," Serial No. 39,978.

T 0 all whom it may concern.-

Be it known that I, ALFR D V. LAWTON, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented new and useful Improvements in Molds for Water-Closet- Bowl Rims, of which the following is a specification.

The present invention relates to iinprovements in molds, particularly adapted for casting from suitable ceramic material tops or rims for water closet bowls.

More particularly the object of the inven-. tion is to provide a mold for such articles by which a top or rim provided with an annular water channel or conduit" and a relatively large number of perforations or discharge outlets may be cast by a single operation. I 7

With a rmold constructed. as hereinafter described, it is possible to cast in one piece a closet bowl rim which, when positioned on the body of a bowl, having a fiat, ungrooved, upper edge will provide the desired water channel and outlet discharge perforations without subsequent treatment.

In the accompanying drawings'there is illustrated one embodiment of the invention which has been practically found'to operate successfully, but there can, of'course, be modification in some of the-details shown and certain of the parts are illustrated more or less conventionally. be considered as illustrative rather than restrictive of the invention, except as details are recited in the appended claims, and, of course, the proportions and exact forms of parts of the mold hereinafter described may be varied without departing from the invcntion. 7 g

In the accompanying drawings:

Figure 1 is a perspective'view of a mold constructed in accordance with the present invention, the parts being arrangedin the position occupied when a rim or'top is to be poured; i

Figure 2 is a vertical section substantially on the line 22 of Figure '3. Figure 3 is an elevation of the botom mold section of Figures 1 and 2. g

Figure 4. is a sectional view, substantially at right anglesto Figure 2, on the line fir-4: of Figure 1.

Figure 5 is a perspective viewof the intermediate and bottom sections arrangedas in The drawing is to Figures 1 to 4, the top section being removed. 7

Figure 6 is a similar view with two mem-' bers of the intermediate section removed.

Figure 7 is a perspective detail view of one member of the intermediate mold section.

Figure 8 is a perspective view of the as scmbled mold reversed from the position shown in Figures lto 6, and in the relation in which it is positioned when it is to be detached from the article cast or formed therein. I d V a Figure 9 is a view similar to Figure 8 with the uppermost section removed.

Figure 10 is. a similar view with two of the members of the intermediate section withdrawn.

Figure 11 is a detail perspective of the lower member of the "mold, referring to Figures 8 to 10 inclusive. 1

Figure 12 is a more or less conventional view of a mold for the body of a closet bowl showing the manner in which the run mold of the'present invention is related thereto when positioning the top or rinr on such bowl.

Referring to the drawings, iii-which like reference characters designate corresponding] parts in the several views, it will be seen that the embodiment of the invention illustrated comprises three sections, namely, two outer sect ons A, B, andan intermediate section which is composed of four separable members C, D, E and F. The inner faces of the outer sections A, B, are pro vided with tubular bosses A, B, which, when the several sections are assembled, contact with'each other, as shown in 2 and 4, and provide an annular space within which are positioned the members C, D, E and F' of the intermediate moldsection;

A groove or channel is formed in the inn r face 'of'the section A, about the outer end of the boss A. and with this channel. comthe slip orceramieniixture may be poured.

-A suitable vent A also formed in the sectron A and communicates with said channel.

In the inner face; of the section A are formed a series ofperipheral notches or seats a, a, a a and a which receive lugs 'municates an opening 53, through which The intermediate section is shown as comprising four quadrant shaped sections the vertical edges of which abut when said members are positioned about the bosses A, B. Said members have a wedge-like tit when pushed inward and provide a continuous wall about said bosses. If desired, the number of said members of the intermediate section may be increased but the partimilar arrangen'ieut shown has been found Very satisfactory.

Each of the aroshaped members (1, I), E and l" of the intermediate section is so shaped that a portion :uljacent the inner end thereof will overhang and extend substantially parallel with a portion of the surface of the boss B on the outer mold section B, audeach of said members l), E and F, is provided at its inner end with a series of substantially vertically extending notches t which, when the sections are as semblcd, engage with the divisions between a series of notches b formed about-the PC riphery of said boss B. The notches f are of greater depth than the notches 7) so that when the sections are assembled there will be provided a series of spaced members, the inter 'als between which communicate with the channel formed between the sections A, B, into which the members G, 1), E and F extend. The exposed portions of the notches f are adapted to produce a peripherally notched skirt integral with the rim or top adapted to cooperate with the inner face of the closet bowl wall to provide the desired discharge passages from the annular water space or channel in the rim.

The boss B of the section B is provided at an intermediate point in its length with a deflected section B and the member E of the intermediate moldsection is provided with a corresponding deflected section E, which, with said portion B of the member B, provides a recess H constituting a lateral extension of the mold chamber, in which will be formed the tongue or extension of the rim skirt I, which is commonly provided opposite the inlet to the water channel or space in the completed rim.

The members C, D, E and F of the intermediate section a re shown as provided with sockets T1 adapted to receive pins or projections M on the outer section B so that accidental separation of the members C, D, E

and F from the section B or relative lateral noted, while preventing turning movement of the members of the intermediate. section about the bosses B, A", on the outer sections permit separation of the internnaliate and outer sections by a direct, radially outward pull on any of the members of the interme diate section. A single lug or rib and cooperating notch or recess are sutlicient for retaining each of the members C, l) and F in proper relation to the section A, but the member E is preferably provided with two similar lugs c, c, and corresponding recesses (.1 0 are provided thercjlor in the sect ion A.

The manner ()ill using the improved mold may be brielly described as follows. The several sections are initially positioned as shown in :l igurcs l to 4.- inclusivo, and the required amount of slip poured into the opening A. ll1c.:l'orm oi? the mold space or cavity provided by the several sections is such that a rim having an annular llat bottom face and an integral depending shirt at the inner edge of such base is produced. the skirt being curved to extend outward beneath said flat bottom face and having its free edge provided with a series of notches.

After the plastic content of the mold has hardened sutliciently, the mold is reversed or positioned, as shown in Figure 8. The sectiml B is now removed by being lifted directly from the intermediate section, the pin and socket connection L, M, between such sections ottering no obstruction to such movement. The members of the intcrmcdiate section are then successively withdrawn laterally, the connection between such members and the other outer section A, namely, the notches a, a, a a, a", and the coacting lugs or ribs not interfering with such morement.

hen the outer section B and intermediate section have thus been removed, the rim into contact with the correspomling tlat up per edge of the closet bowl. It is custon'iary to coat the contacting edge surfact-is oil. the rim and bowl with a suitable cement before super-posing the rim on the bowl, and thereafter the union between the members is completed in the ordinary manner.

To assist the operative in accurately positioning the rim on the bowl in the mold N, 1

the mold section A is preferably provided with a plurality of sockets O, which receive suitable pins on the bowl mold N, so that the parts will be accurately guided into the exact and proper relation.

As shown in Figure 12, when the rim or top is positioned on the bowl in the mold N, the flat surfaces of the rim and bowl are in close contact and the water channel or space is provided entirely between the transversely lit) curved skirt and bowl wall. The lower slightly outward turned, free edge of the rim skirt, which as shown and described, is notched need not be connected to the adjacent surface of the bowl but may contact therewith. Y

An important feature of the invention is that by using the improved mold it is possible to cast a water closet bowl rimin which all of the water channel or space in the rim or the completed closet may be formed at a single operation. Heretofore it has been customary to form a portion of such water channel in the upper edge of the closet bowl or to make the rim or top of a plurality of sections.

Having thus described the invention, what is claimed is 1. A mold for casting water closet bowl rims, comprising superposed outer and intermediate sections, the intermediate section contacting withone of the outer sections including a plurality of members and being engaged with said outer section by means permitting separation of said sections by lateral movement of the members of the intermediate section, the other outer section being engaged with the contacting intermediate section by means permitting relative movement between said sections in a vertical direction only.

2. A mold for casting water closet bowl rims comprising three superposed sections,

the intermediate section being formed of a plurality of members that are interlocked with one outer section by means permitting disengagement of said sections by lateral, horizontal, movement of thefmembers of the intermediate section and interlocked with the other outer section by means permitting relative movement between said sections in a vertical direction only.

,3. A mold for casting water closet bowl rims comprising superposed outer and intermediate sections, the intermediate section contacting with one of the outer sections being formed of a plurality of members that are connected with said outer section by interlocking tongues and recesses permitting disengagement of said sections by lateral, horizontal, movement of the members of the intermediate section, the other outer section being engaged with the contacting intermediate section by means permitting rela 'tive movement between said sections in a vertical direction only. p r

Ainold for casting water closet bowl rims comprising superposed outer and intermediate annular sect-ions, the intermediate section contacting with one of the outer'sections being formed of a plurality of memhere that are connected with said outer section by arc-shaped interlocking tongues and recesses preventing relative rotary movement between said sections and permitting separation of the sections by radial movement of the members of the intermediate section, the other outer section being engaged with the contacting intermediate section means permitting relative movement between said sections in a vertical direction only.

5. A mold for casting water closet bowl rims comprising superposed sections, one section having on its inner face a boss, provided with a notched periphery, and a recess that extends radially outward from said boss, the notched periphery of the boss being deflected into said recess, a second section, contacting with that aforesaid, including a plurality of members forming a space receiving the boss on the first said section and each having an undercut edge that overhangs a portion of said boss and is provided adjacent its face that contacts with the first said section with notches that register with the notches in said boss when the parts are assembled, and a third section having on one face a boss adapted to extendinto the space surrounded by the members of the second saidsection and to contact with the boss on the first said section.

6. A mold for casting water closet bowl rims comprising superposed sections, one section having on its inner face a boss, pro vided with a notched periphery, and-a recess that extends radially outward from said boss, the notched periphery of the boss being deflected into said recess, a second annular section surrounding said boss and including a plurality of members each having an undercut edge that overhangs a portion of said boss and is provided adjacent its face that contacts with the first said section with notches that register with the notches in said boss when the parts are assembled, the membersof said annular section being engaged with the first said section by means permitting relative movement between said sections in a vertical direction only, and a third section having on one face a boss adapted to extend into the space surrounded by the members of the second said section and to contact with the boss on the first said section, said third and second sections being connected by means permitting disllli') engagement by lateral movement of the I members of the said second section.

In testimony whereof I have hereunto set my hand.

ALFRED v. LAWTON.

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