US1013475A - Apparatus for molding concrete walls. - Google Patents

Description

T. H. BROWN.

APPARATUS FCR MOLDING CONCRETE WALLS. APPLIGATION FILED Emma, 190s4 1,01 3,475. Patented Jan. 2, 1912.

lof -Minneapolis,

THEODORE '1 -I. BROWN, OF MINNEAPOLIS, IIINNESOTARASSIGNOR T0 NELS J.

OF' MINNEAPOLIS, MINNESOTA.

sportarten.'

` ArraRA'rUs For. MOLDING CONCRETE WALLS.

Specification of Letters Patent.

Patented Jan. 2, 1912.

Application iled'February 13, 1908. (Serial No. 415,646.

To all whom it may concern: l v Be it known that I, 'IHnononn H. Brown, Hennepin county, M1nnesota,`ha`ve invented certain new and useful Improvements in Apparatus tor Moldingv Concrete 'Walls, of which the following is a specification.

My invention relates to a molding apparatus for concrete walls of the monolithic type, and the object of the invention is to provide a molding. frame capable of convement and rapidadjustment and b of which a solid wall comprising ace sections with an air space between them, can be molded in a very compact and rdurable manner.

My invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out vin the claims.

In the accompanying drawings, forming part of this-specification, Figure 1 is a perspective view of a wall with my improved molding apparatus thereon. Fig. 2 is a top view of the same. Fig. 3 is a Idetail view of one of the devices tor locking the sides of the mold together through the wall. Figs. 4 and 5 are detail views illustrating the means employed for locking the side boards and the core plate together.

In the drawing, 2 and 3 representthe side boards or plates'between which the wall sections 4 and 5 are formed. 1

'6' is a core plate tapered slightly from the top to the bottom to facilitate the drawing of the same, and provided with a cross bar 7 to be grasped by the operator in raising the core plate from one level to another.

8 represents tiebloclrs having cross ribs 9 thereon 4whereby 'the ends of the blocks will be interlocked and bonded in the concrete. These blocks, as indicated, are de signed to bridge the space between the sections 4 and 5.

impervious to moisture bv a coating of suit- -a'ble substance or by soa ring them in some The side plates 2 and 3 are held in their proper relative position by ,means or" bars 10 tapered from one end toward the other drawn together and . plates 2 and 3 are means y plate repeated until the' desired height of wall has y The blocks may be made of, .any suitable material and may be rendered The blocks are locatedkting ends have Arecesses 3 to facilitate driving them out of the wall, and having oppositely turned lugs 1l at one end to bear on the plates 2, and a slot l2 at the other end to receive a locking key I3 by means ot which the side plates are firmly held during the molding operation. The mold having been set up with the core plate in place the spaces between the core plate and the side filled with the concrete mixture of suitable consistency.

The core plate is provided with a series of recesses tl in its lower edge to receive the tie-blocks 8, said, blocks being placed upon the top of the wall and the core plate inserted between the side boards until its lower edge rests upon top of the tie-blocks, as indicated in Fig. l. The concreteis then poured into the mold until the spaces between the core plate and the side boards are iilled. The side plates and the core plates are then raised as soon as the'corp crete is set sufficiently, and the operation described is repeated.

The tie-bars l0 are used as indicated in I? ig. l, at the joints between contiguous side boards, the lugs on one side bearing on the end ot' one board and those onthe other side ot the bar bearing on the adjoining board. These tie-bars may be lett in the concrete until the substance has hardened suciently to allow them to be driven out. This operation of raising the sides of the mold and the core Vand lling the spaces between them, is

been formed.

At the corners the adjoining side boards are preferably secured together by angle straps 14. and l5. The core plate is plainly indicated in this iigure with the bars 7 at intervals to facilitate raising it. rlhe width of the wall' may be varied by using tie-bars ot ditterent length.. and the air space between the opposite faces of the wall. may be iii-- creased or decreased by using core plates of diiierent thickness. fis the side plates are raised in the process ot' molding the wall they may be supported on the ends of the tie-bars beneath, being held in their relative position by tbe bars passing 'through the joints .at the ends of the plates. y

he side boards as indicated in Fig. l, are tongued and grooved at 2'., and their abut.

to receive the tiebars 10. 'Ihe under side oteach cross bar iwall, comprising side plates arranged with the operation of filling the mold. The in Y ter-locking longitudinal edges of the boards will also prevent sidewise or lateral movement.

I`elaim as my invention:

1.A An apparatus for molding a monolithic a space between them, the plates on the same side of the wall having their ends abutting one another, tie-plates bridging the wall and having their ends extending through the joints of adjoining side plates, said tie-plates having oppositcly turned lugs at one end to engage said side plates, and slots and tapered keys therefor at the other end, whereby said plates will be locked in parallel relation with one another, and core plates vtapered from their upper toward their lower edges and suspended between said side plates,whereby an air space will be formed between the opposite faces of the wall, when molded, and cross bars interlocking with the upper edges of said side plates and supporting said core plates substantially as described.

2. An apparatus for molding a'monolithic wall, comprising side plates arranged in parallel relation with one another, tie-bars connecting said plates, core plates arranged to be suspended between said side plates and spaced therefrom, said side plates and said core plates being moved vertically as the sections of wall are molded, and tie-blocls arranged to rest upon the wall sections and bridge the space formed by said core plates, and the lower edges of said core plates have ing lrecesses therein to receive said tieblocks, and each tie-block being embedded in the wall sections as the successive sections are formed, substantially as described.

In witness whereof, I have hereunto set my hand this 31st day of January 1908.

THEODORE H. BROWN.

lVinesses:

VR101-IARD PAUL, J. A. BYING'roN.

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