US1583516A - Method of making multicolored concrete floors - Google Patents

Description

May 4 1926. 1,583,516

w. H. ANFIELD METHOD OF MAKING MULTICOLORED coucnms moons Filed July 21. 1924 6 of Missouri,

Patented May 4, 1926.

WILLIAM HENRY ANFIELID, ase. LOUIS, MISSOUBI.

,METHOD or Maxine MULTIGOLORED ooncnnrn moons.

Application filed. July 21,

To all whom itmag concern:

Be it known that I, WILLIAM HENRY AN- FIELD, a citizen of the United States, and resident of the city of St. Louis and State have invented certain new and useful Improvements in .Methods of. Mak: ing Multicolored Concrete Floors, of which the following is a specification, containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof. 4

My invention relates to improvements inevice and method of making multi-colored concrete floors, especially what is commercially known as terrazzo, and has for its primary object the construction of multicolored terrazzo floors without precastmg and laying individual blocks or slabs.

Referring to the drawings Fig. 1 is a fragmental perspective view of a portion of a floor with the device or form which I employ placed thereon before the floor is thoroughly set, illustrating the first step of process, after the floor has been completed, in forming the multicolored surface Fig. 2 is a similar view with the coloring material tamped in and the form or pattern removed;

Fig. 3 is a similar view illustrating the multi-colored floor finished or scored to represent individual blocks or tile;

Fig. 4 is a longitudinal section of the deviceor form.

In carrying out my improved process or method I commence with" the floor or concrete base as laid in by the builder, this concrete base is indicated as 3 and is formed out of broken stones, sand and cement and is properly reinforced in any suitable manner. This part of my improvement is well known and needs no further explanation. On top of this concrete base 3 I place a layer 4: of cement and sand properly mixed with water. This is the leveling up'layer as the concrete layer is generally left rough and in an uneven state. After I level up the surface of the concrete base as stated, I then apply my flooring as indicated at 5, this flooring is formed of concrete and sand and broken granite or marble properly mixed with water andis formed in one monolithic layer. Before the layer 5 becomes thorough- 1y set, I take the device or form 6 andplace on the design desired. 6 is further provided along the edges with 1924; Serial No. 727,148.

it thereon as indicated in Fig. 1. This device or formfi is made out of relatively'thin sheet metal and is provided with cut out portions .7, theportions 8 being not removed. These cut away portions 7 may be of any suitable size and shape depending of course The device or form reinforcing'strips -9 and with handle "attach; ments '10 by means of which it may be manipulated. \Vhen IplaceJthe form "6 on the floor'layer 5, I then apply inuthecut away port-ions 7 crushed marble chips 11,

which are tamped or, trowelled or both into the surface of the floor layer 5. These marble chips of course, are of'diflferent or contrasting colors from the surface of the floor layer 5. After these marble chips 11 a have been impressed into the surface of the layer 5 I then remove the form or device 6 and the entire surface is then rolled and finished. i

It will be understood that in the operation of applying the colored material or marble I chips 11, the walls of the openings 7 will define and retain these chips in regular and defined position. v

'After the formation of thefioor, as above set forth, I then cut grooves by means of a suitable cutter along the edges of the colored surfaces or portions, such as at 12,,these grooves are cut through the floor layer 5 and partially through the layer 4 and preferably after the same has hardened. I then fill in these grooves by means of a body of selfhardening material 13 and then this is finished off. These grooves are for the purpose of giving the floor the appearance of a precast. or slab structure, and also prevents cracks from settling of the floor or expansion.

It has heretofore been the practice, as far as I have been informed, when making a multi-colored floor surface it was necessary to'precast small individual slabs and then lay them in cement which was expensive,

slow and tedious and required the employment of skilled labor. By making my concrete floormonolithic and applying the colored marble chips and forming the grooves therein as contemplated in this invention, I

cretefloorand of a neater appearance than could possibly be made according to the old am able to make a stronger and cheaper oonpractice of precasting and setting of inclividual slabs or tiles.

Having fully described my invention, What I claim is 1. The herein described method of mak ing multi-colored concrete floors which consists in forming a concrete supporting base, applying to said base a leveling and smoothing layer of sand and concrete, applying to said layer of sand and concrete a monolithic self-hardening layer and rolling the same, laying on said monolithic floor layer before it becomes set a form having certain portions cut away, filling in the cut away portions with colored material or rock chips, tamping the said chips or rocks into the monolithic floor layer, removing said form, rolling the monolithic floor layer and colored chips so as to form a continuous smooth surface, forming channels in the monolithic layer along the edges of the colored portions, and filling said channels with self-hardening material.

2. The herein described method of making multi-colored concrete floors, which consists in forming a concrete supporting base, applying on said base a leveling and smoothing layer of sand and cement, applying to said smoothing layer a monolithic selfhard ening layer and rolling the same, laying on said monolithic layer before it becomes set a form having certain portions thereof cut away, filling in the cut away portions of said form with colored material vor rock chips, tamping said chips or rocks into the monolithic floor layer while the form is in position, removing said form, rolling the monolithic floor layer and the added material so as to form a smooth surface, permitting the same to harden forming channels in the monolithic layer along the edges of the added portions, and then filling in said channels with a self-hardening material.

In testimony whereof, I have signed my name to this specification.

WILLIAM HENRY ANFIELD.

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