US936798A - Mold construction for concrete walls. - Google Patents

Description

J. MUBLLER.

MOLD UONSTRUGTON FOR CONCRETE WALLS.

APFLIUATIDN FILED JUNE 25 Patented ct. 12, 1909.

UNITED STATES 'PATENT OFFICE.

specification of :einen retest.

Patented ooe. i2', 1909.

plenum ma :no as, im unir no: ,ne-.ant

To wimmitmay consum.'

Beit known that I, Jenn Munchen, a. citizen of the' United' States of America, and a resident of Elmhurst, county of Dupage,

o Stute;v of Illinois, have' invented certain new 1o provide an improved construction for moms ing to this invention.

suitable for use ini the erection of concretewalls and the like, which is simple, eiiicient' and economical, and in which the lumber which is to be afterward used in the building .i muy be utilized as mold material without being cut or otherwise damaged, and to provide a construct-ion wherein the mold will require few parte and permit of successively advanc. ingthese-as the work progresses, and wherein the ry uipment shall consist of parts which are o simple and inexpensive construction and of such size and shape as' to be durable and not likel, to become lon.. These objects are uecomp edby the construction shown in the accompanying drawiu in whichigure 1 is a sectional perspective view of a double concrete wall in the process of construction. the mold bei constructed accordi 2 is a transverse section of the same on the ine 2-2 of Fig. 1, showing the moldadvanced preparatory to bnildi an additional section upon the wall. Fig. 3 1s a :1I-tial plan view of one of the cross bars, owing the relative position of the rod and the enlarged erforation, and also showing the scoring of t e bar for breaking oil the projecting end when the wall is completed. Fig. 4- is a side view of the same. l'n the construction shown in the drawing', the mold sections or forms 1 are retained in a substantially vertical position by vertically disposed treme members referably in the form of roundY rods 2 which extend down wnrdly through the erforntions in the cross bars or binders 3. e rods 2 ure bent at the upper end toward one side, so as to provide heads by which the rods muy be pulled or driven upward. The erforations in the bars 3 are made lm er in inmeter than the rods 2, as shown in t e Fi 3 und 4, in order that the hars 3 may be easily passed down over the bent upper ends of the rods 2 without necessitating the removal of sume.

In sin le wall construction the burs 3 are plain en can be removed from the wall, if

desired, beforetle concrete' has fully bei denied.. IIx-double welconstruetion the bars' shave yrfonaltiens'intermediate of 'the ends into' whicli the concrete enters and holds the hers 3 ruilyin? the mol adapting them to serve es binders the ls'cnw..dls. The ba'rs 3 are also Scored et 5i at' the outer faces' l of the walls toall'ow; the proecting ends te he' broken In'- doule; wel] cf-second set of rodsev'vfhico maybe' come what shorter than therod 2, entend through jperforations-in the' bers and hold the'inn'er mold sections 9' in4 position for gaging the space between the two wells.

e The building of a wall b means of this construction is as follows e footing 8 of the wall is rst constructed. Then a series of cross bars'3 are laid u on the footing 8, and the first rows of mol sections 1 and 9 are placed onedge on thebers 3. A second series of cross bars 3i are placed on the top` edge of thev mold sections directly above those in the iirst series. The rods 2 and 6 are then inserted into the perforations, so esh to connect the cross bars and secure the mold sections against beV spread a art' when the concrete is-lled in; eboa 1- and-9 may beV tem 'rarily held apart by transverse braces lnot shown), but these areV usually unnecessa after the irst course is completed. T e concrete is then filled in between the boards. After the first course of concrete suiliciently set, the up r set of cross bars 3 is removed to permit t e boards 9 to be taken out. Then said upper set of cross bars-is replaced, and the second section of the mold is set up in the same way, the cross bars 3' being' simply passed over the heads of the rods 2. The concrete for each course4 is-lled i-n before the mold for the succeedingeourse is erected. This-operation 1s' continued' until the mold has reached the tops of the 7rods-2. The next cou-rse of the mold is-then erected by drawing the rods 2 upwordl' the length of one section, removing the oarcls l of the lowest section, and plecin them on the bers 3 above the boards 1 of t e course 'ust completed. The bers 3 are then pass down over the rods 2 as before, und the section is reudv to be filled with concrete. The operation t en contlnues as before, until the wall reaches the. deslred height, the mold being advanced wlth each successive course. It 1s preferred to merely lay the cross bars ncl-oss the edges of the boards, without cutting them, as this permits In single wall construction the boards 9 and rods 6 are omtted,and the-barsj are made without intermediate perforations 4, so that they may be pulled out of the wall before it has fully set. In double wall construction the bars 3 bind together the two walls. The sco 5 permits the projectin ends to be broken o close to the wall. 1e fact that the rods 2 extend across several courses of.

the mold insures that the additions to the mold ma be easily kept in vertical alinement wi the sections below.

What I claim as my invention and desire to secure by Letters Patent isz- 1. In a mold, the combination of a plurality of mold sections ded one above the other cross bars exten thro li the mold and projecting ontw 4beyon said mold sections, verticali members each adapted to coperate with the projecting parts of a lurality of successive cross bars so as to h the mold sections in position, said members being adapted to be slid u wardly while in operative relation with e upper cross bars to permit the lowest mold section to be removed and placed above for advancing the mold without disturbing the intermediate mold sections, and means on said members whereby they may be pulled upwardly.

2. In a mold, the combination of a pluraIity of mold sections osed one above theother,crossbarsexten ngthro hthe mold and projecting outwa beyon said mold sections and having perforations adjacent to the outer faces o said sections, rods extending downwardly through said peiforations from one cross bar to another and adapted to hold said sections in osition, the upper ends of said rods being nt toward one side tlolprovide heads whereby said rods may be ed upward while in engagement with sai cross bars, said perforations being shaped so as to permit successive cross bai-s to be passed down over said heads and into position without necessitating the removal 55 of said rods.

3. In a mold, the combination of a plumortar over these places.

scenes rality `of mold sections disposed one abov the other Acrest-pliers exten in thro li thg mold and projecting outwar beyon said mold sections, vertically disposed rods each adapted to coperate with the projecting parts cfa vplurality of successive cross-bars so as to ho d the mold sections in position, each Aof said rods being of substantially uniform cross section throughout its length and ,adapted to be slid upwardly while in operajacent to the outer faces ereof rods extend downwardly through said rforations rom one cross bar to anl er and adapted to hold said mold sections in a substantially vertical ositon, heads at the upper ends of said redis, said perforations being shapediso as to permit succeive cross bars to be passed down over said heads and into position without neceitating the removal of said rods.

5. In a mold for hollow wall construction, the combination of incid sections for forming the faces o the wall and the sides of the space therein, cross bars extending through the wall and projecti beyond the mold sections at opposite sides ereof, said cross hars being arranged one above the other and each having aplertures therein adjacent to each of said mol sections, and vertically d' rods extending through said apertures from one cross bar to another for hol said mold sections in position and adapte to be shifted u ward to permit the lower mold sections to iie removed and replaced above for advancing the mold, said rods and the apertures in said cross bars being shaped to rmit the cross bars to be sli pcd on and o of the upper ends ofsaid ro while said rods are in position in the mold.

Signed at Chicago this 22nd day of June,

. JOHN MUELLER. Witnesses:

EUGENE A. Ruisimnn, Manif M. Dimmu.

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