US982769A - Concrete-column mold. - Google Patents

Description

elaini.

HERMAN J. lEBERLE, OF ST. LOUIS, MISSOURI.

,CONCRETE-COLUMN' MOLD.

Specification olf Letters Patent.

Patented Jan. 24, 191.1.

Application filed May 12, 1910. VSerial No. 560,816.v

To all whom it may' concern:

Be. itl-known that l, llnnnax J. Eiannnn. a eitizenot the United frlta'tes, and resident ot St. Louis, Missouri, l'nweinrented `certain new and useful nlinprov'enients in Cont-rete- Iolunin Molds, otjvhich the following is f specification containing a tull, ele-ar, and

exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to an improved mold vfor concret-e. eolunins, and consists in the novel construction and combinationof parts hereinafter described and polnted out in the V The objeet of 4my invention is to provide an iniproved mold for use in toi-nung concrete e'orlunins 1n the in'ost economical and etiicient'inanner, and which shall be simple.v

and durable in eonstrimtion and of low cost.

In the drawings, Figure l is a seetional elevation oit one section of my improved inold. Fig, 2 is a plan-view ot' one of the split coupling-rings. Fig. 3 is a sectionaleleVati-on o' a series ot the iuoldse(^.tions, set up. Fig. l is a detail-section of the lower port-ion ot the base-seetion.

The mold is made up of a series ot sheetinetal sections 1, having their meeting-edges temporarily secured together by means of rivets or bolts L), and removably mounted end-to-e1xd so that their seams will break joints split 'coupling-rings 3 preferably made of curved angle-bars L-shaped in crosssection and provided with pail-sof adjoiningl holt-holes et' synnnetrirally-loeated in the vertical and horizontal flanges of said bars,

whereby said eouplingjrings may be'used interchangeably on the ends o't said sheetnietal sections, and whereby the abutting ends of the said rings will break joints l with those ot' the rings above and below them in the erected mold, as shown in F ig. 3. The semi-circular halves of the rings 3 are temporarily fastened to the ends of the sheet-metal sections l by means of bolts 5. Said bolts 5 are to be located temporarily only Vin the holes through which they are passed in'the vertical flange of said split rings, and in the corresponding holes formed near the ends of the sheet-metal sections 1. Said holes in the said rings and in said sheet-metal sections 1 are arranged syn metrieally in said parts, so that all of the said rings and all ofb said sheetlinetal see- 4 tions can be used interehangeably,` in breaking joints during the erecting operation. In other words, there are pairs of adjoining holes Jfor the bolts formed in the sheetinetal sections diametricaily-opposite each other, and the pairs of holes 4 in said horizontalfianges ot' the rings are also diametrieally-opposite each other. Said pairs of synnnetrieally-loeated holes in .the flanges of said rings are furthermore syunnetrieallylocated at an angle of l5 degrees apart in the preferred.arrangeinent, as shown, but ofcourse the lspace'between the said pairs of holes (both in said rings and correspondingly in the .sheet-metal sections) may be varied if desired, and the result will be praetieally identical in either ease. Addi tional boltsholes for additional bolts 7 are' located interlnediitely of the said pairs of holes and bolts.

A. Cleaningrouthole SV is formed in the base of the base-section so that pieces of wood, shavings &e., which may have accident-ally fallen into the in old during theereetion of the necessary carpenter-work around a new building, can be readily removed from the completed inold just prior to pouring in the concrete. i

A detachable door S) covers said cleaningout opening during the operation of pouring in the concrete. Said door 9 has its lower portionloeated between the base ring 3 and the outerwall of the base-section 1, and the lower portion ot said door is wider than said opening and projects laterally beyond the edges of saine, so thaty the lower portion -ot said door cannot pass within said section; but the upper portion of said door is rut narrower than said lower portion, so that a shoulder 10 is formed at the upper end of said lower port-ion of said door, and a narrow portion 1l is formed above Said shoulder, and the narrow portion is bent i11- wardly a slight distance (corresponding to the thickness of the sheet-metal section) and thence said upper-portion is bent upwardly again.' so that it covers said opening al# though located upon the inside of said'section. j l

The operation is as follows: The door 9 may be detached by sliding itupwardly u-ntil its lower end is raised above the upper edge. of the adjacent ring 3, when the door -niay be readily drawn out of said opening,

in' said mold. rlhe replacement of said door is obvious. Before pouring the concrete the mold should be erected as shown in Fig. 3,-

with the edges of the sections l united by rivets 2; with the ends of said sections abutting, but with. their seams arranged to break joints, and with the splitcoupling- 'rings at the ends of said sections also arranged so that the opposite joints in them break joints with each other and With the seams of said sheet-metal sections. The rings of the abutting sections are bolted together temporarily by bolts passedthrough said paii's of holes 4 and through the holes located intermediate of them. The mold will then be ready for pouring in the con crete. After the concrete has been allowed to set in the mold for a. suicicnt length of time, the coupling-rings are removed by detaching their bolt-nuts which have secured them together at the abutting ends of the sections, and by also removing the nuts from the bolts which have secured them to said sheet-metal sections; afterwhich the workman should cut the rivetsor bolts 2 when the sections may be readily openedseams of adjacent sections arranged to break joints and said sections having symmetrically-located pairs of adjoining holes near the ends of said sections, and a series of split coupling rings L-shaped in cross section and having also symmetricallylocated pairs' of adjoining holes formed in both vertical and horizontal flanges and said rings mounted interchangeably on the ends of `,aid sections With the joints in said rings breaking joints With the joints of the other split coupling rings and with the joints of said sections, substantially as shown and described.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing Witnesses.`

HERMAN J. EBERLE. Witnesses:

E. E. LoNGAN, E. L. AVVALLAon

Images