US1845711A - Tile and floor with special metal wearing surface - Google Patents

Description

Patented Feb. 16, 1932 UNITED STATES PATENT OFFICE BERNARD ARNOLD KONIG, 0! DE STEEG, NETHERLANDS, AND FRITZ mm, 0] ESSEN, GERMANY TILE AN D FLOOR WITH SPECIAL METAL WEARING SURFACE Application filed November 30, 1828, Serial No. 822,793, and in Germany February 8, 188'.

The invention relates to a floortile of concrete or similar hardened material with a metal covering plate as a special wearing layer on the tread surface and to a process for the manufacture of floors of said material with metal covering plates as a tread surface.

The tiles accordin a metal covering pi;

to the invention have te forming the tread surface thereof, said plate closing with bent edges wholly or partially aroun the material of the tile while it is anchored in the tile by means of anchoring members extending from said covering in three directions to anchor said covering in the tile material in longitudinal, transverse and vertical direction.

With respect to the known floor tiles in which a wearinglayer is obtained by mixing metal in grannular or pulverized form with the upper layer of the tile material, the new tile has the advantage that the edges of the tile are also protected. Such protection is for instance specially wanted if vehicle trafiic takes place. The 'i'oints of the tiles, however perfectly the ti es may be laid always form an unevenness and thereby may give rise to crumbling oil.

If the covering plate is very thin the bent edges of the plate will be of considerably more importance for the protection of the tile material than when using thick plates.

The lipshaped parts of the edges of the covering plate which in their inwardly bent position form anchors are kept preferably perpendicular to the central part of the plate.

An advantage of this perpendicular position is this that the concrete material may be rammed in without interfering with the said anchoring lips of tongues and a better contact between the material of the tile and its covering plate is obtained in this way than when pouring in the concrete.

Other means for anchoring the covering in the tile material in three directions thereof consist in providing the flat central part of the plate with openings, obtained by making incisions and bending out the lipshaped strips perpendicular to said central part. Said openings are useful in allowing the plate material to ex and under the action of the trafiic or other oad.

In order to more clearl understand the invention reference may lie made to the ac-- companying drawings, in which:

Fig. 1 is a plan-view of a covering-plate blank prior to the deformation.

Fig. 2 is a fragmentar slightly modified method blank material;

Fig. 3 is a perspective view of a tile as combined with the plate of Fig. 1;

Fig. 4 shows the plate according to Fig. 3 bent in the required shape; and

Fig. 5 is a fragmentary perspective view of a third form of plate according to our invention.

In the embodiments shown in Figs. 1 and 2 a flat plate 1 is provided with the necessary incisions at the corners (2-2) and in the edges (33) The parts are then bent along the dotted lines coinciding with the corners 2--2 as regards the entire edges, and along 3-4 as regards the lips in the said edges.

In this manner a kind of cap is formed which may be laid upside down in a mould and which may thereupon be filled with concrete. After the latter has been hardened, a tile as shown in Fig. 3 is obtained. The lips at the edges 33 are directed inwardly and form an anchoring or attachment for the plates.

The verticle position ofthe lips (see also Fig. 5) ensures in the first place a suflicient freedom of movement of the mortar during the pressing in, ramming in or pouring in thereof.

Fig. 4 of the drawings, shows an embodiment of a plate, in which the incisions 3-3 are extended unto the bending line 2-2 of the plate. This plate consequently does not give a continuous surrounding edge around the tile as appears clearl from Fig. 4. The lip-shaped anchors 5 are ere doubled, which shape. may of course be used also in connection with the tile according to Fig. 2.

The tiles protected in this manner, when laid against each other, will not crumble off at the joints under the action of vehicle traffic, In this respect the plate according to view showing a of cutting the Fig. 1 will better suit the purpose than a tile, which is protected by a plate according to Fig. 4.

It will be clear that tiles made in this man- 5 nor have still some disadvanta es. In general a floor composed of tiles, t e upper side of which floor consists of flat lates, will be too smooth for the trafiic. T is drawback might be overcome by using e. g. ribbed plates. Another solution of this problem might be found by erforating the late at the upper surface. y ramming in t e mortar the latter will fill up the perforations so that after hardening rough places will be formed at the surface.

According to this invention these disadvantages are successfully avoided by providing additional anchorin members in the form of perforations or incisions in the flat surface of the covering with lips bent out therefrom to form an attachment means for the flat surface of the covering to the tile material adjacent thereto. In addition to this by so constructin the floor tile all anchoring members are a out at even distances from each other to be evenly distributed and acting in various directions.

Moreover the said perforations or incisions permit the use of more moisture in the mortar, whereby the attachment between the metal and the mortar will be further increased. The moisture may be driven out of said perforations or incisions together with the air. Finally said perforations or incisions permit inspection to determine whether the plate is closely fitting.

A still better effect will be obtained, if longer'incisions are made in the upper side of the plate and the lips 6 (Fig. 5) formed thereby are bent inwardly at right angles. The lips then form an attachment-means for the central plane to the mortar.

Moreover the long perforations or incisions which may be made in various directions (Fig. 5), give occasion to the metal of the covering-plate to expand under the action of the traffic. By reason of this there is considerably less chance that the plate and tile will become loose during use.

The shape of the perforations or incisions and the bent-out lips ma of course be varied.

Fig. 5 of the drawings s ows some examples.

In this figure 1 designates the flat portion of the covering-plate, 7 are the bent lateedges, 5 are the U-shaped anchoring lips, 8

are single anchoring-lips bent out from the edges. The various anchoring-lips bent out To this end it is of course not necessar that the plates are all around provided with edges; the anchoring means and the perforations however, remain of importance.

Dependent on the application, various materials may be used for the plates. In general sheet-steel of a thickness varying between 1 and 2 mm. will be preferred.

We claim 1. A metal covering for floor tiles of concrete or similar hardened material, in which the metal covering consists of a flat plate, said plate having edge flanges extending at right angles thereto so as to form a capshaped tread surface for the tile, lip-shaped anc ors bent from said edges and projecting inwardly into the tile material in planes which are perpendicular or essentially perpendicular to the flat central portion of said plate, the bending of said anchors interrupting said edge flanges to provide downwardly extending spaced rojections. d

2. A floor tile 0 concrete or similar hardened material, in which the metal covering is adapted to act as a tread surface, said metal covering being provided with anchoring members extending from said covering in three directions to anchor said covering in the tile material in longitudinal, transverse and vertical direction of the floor tile, and additional anchorin members havin the form of lips bent out o incisions in the Eat surface of said covering, said incisions and lips being ada ted to form an attachment means for the at surface of the covering to the tile 100 material adjacent thereto.

3. A metal covering for floor tiles of concrete or similar hardened material, in which the metal covering consists of a flat plate, said plate having ed es bent at right angles so as 105 to form a cap-s a ed tread surface for the tile, lip-shaped anc ors bent out of said edges and projecting inwardly into the tile material in planes which are perpendicular or essentially perpendicular to the flat central 110 portion of said plate, and additional anchoring members having the form of lips bent out of incisions in the flat surface of said covering, said incisions and lips being adapted to form an attachment means for the fiat 115 surface of the covering to the tile material adjacent thereto.

In testimony whereof we afiix our signatures.

BERNARD ARNOLD HONIG. FRITZ EBENER.

of perforations or incisions in the flat surface are denoted by 6, 9 and 10. 50

- covering-plates may from .the nature of Besides, for the manufacture of tiles the things be used also for making continuous 1 floors. The metal plates may be pressed into i a concrete-mortar layer, which to this end is spread over a new or old concrete floor.

Images