US1817309A - Dividing strip - Google Patents

Description

Aug. 4, 1931. w, R5; 1,817,309

- DIVIDING STRIP Filed Jan. 24, 1 930 T L m INVENTOR.

Patented Aug. 4, 1931 ROBERT W. HARDIE, OF FANWOOD; NEW JERSEY mvrmne STRIP Application filed January 24, 1930.

This invention relates to means for dividing terrazzo floorings into sections, and has for its main objects to provide a dividing strip of the class described, that is simple in construction, effective in operation, and durable in use.

A further object of the invention is to provide means for locking the dividing strip securely in a flooring to prevent vertical dis placement thereof and also to prevent lateral displacement of the strip when a crack occurs in a flooring.

One of the main objects of the present invention, is to provide a dividing strip that is adapted to enable two adjacent sections of an underbed to be joined together at intervals.

The foregoing and other objects of the invention are accomplished by the means hereinafter described and illustrated in the accompanying drawings, in which similar reference numerals indicate corresponding parts throughout the several views.

It is to be understood, however, that changes, modifications and alterations may be made therein without departing from the invention.

In the drawings which illustrate the invention in its preferred form,

Fig. 1 is a side elevation of a dividing strip embodying one form of the invention.

Fig. 2 is a vertical transverse section of the strip shown in Fig. 1 taken on the line 22.

Fig. 3 is a vertical transverse section of the underbed and top layer of a terrazzo flooring showing a dividing strip embodying the invention embedded therein.

The strips shown in the drawings are made of non corrosive metal, and are provided with parallel outer edges, and with two series of anchor segments 3, one series being arranged above, and the other series below the central longitudinal line of the strip as shown the drawings.

Serial No. 423,202.

The segments 3 are inclined relative to the face of the strip, and extend inwardly thereof from bases extending longitudinally between the central longitudinal line and the outer edges of the strip.

As shown in the drawings, the anchor segments are provided with lateral edges extending in converging relation to each other, but the shape and length of the segments, may be modified without departing from the inventi'on.

The segments 3, of the upper and the lower series, are shown in the drawings as arranged in separated groups, each group containing a plurality of segments.

lVhile that construction may be sometimes preferred as a matter of convenience in making and laying the strip in aflooring, that is not a controlling feature of the invention, and the segments of each series may be grouped or separated as desired.

When it is desired to connect adjacent sections of a flooring together, openings 2 may be made in the strip, preferably along the central longitudinal line so as to extend above and below that line asshown in Fig. 3, wherein the lower part of the top layer, and the upper part of the underbed of adjacent sec tions of a flooring are shown connected to gether at the openings.

By means of the construction shown and described the strip is reversible so that either longitudinal edge of the strip may be inserted in the underbed.

hen the strip is inserted in the underbed the series of segments below the central longitudinal line being inclined outwardly from the body of the strip come in contact with the edge of the top surface of an adjacent section of the underbed, and as the downward movement of the strip is continued the segments break down the material in its path and leave a well defined cavity above them, and between the inner face of the segments and the plane of the body of the strip,-

The material forming the top layer, composed of crushed pieces of marble mixed with cement and water, is applied to the underbed in a semi-liquid condition and flows into the cavities made in the underbed by the downward movement of the anchor segments, and when hardened form downwardly extending tongues of terrazzo material on the inner side of the anchor segments that hold the anchor se ments firmly and laterally against the adjacent sections of the underbed that contain the anchor segments, and permit the reverse side of the strip to separate from its adjacent sectionswhen a crack occurs in a flooring,

separate from the sections as shown in Fig. 3. v 7

By means of the construction illustrated and described, the segments 3 on the upper half of the strip clinch the upper half of the strip to the section of the top layer adjacent said segments and the segments 3 on the lower half of the strip clinch the lower half of the strip to the section of the underbed adjacent said segments, thereby not only preventing any vertical displace ment of the strip in the flooring, but also forming a double locking connection between the strip and the section of a flooring and leaving the opposite side of the strip free to of the flooring adjacent thereto.

As a result, the strip is held in a straight ornormal position even when a crack occurs in a flooring along the strip, and the strip does not assume a crooked line with the crack partly on one side and partly on the other side of the strip.

' l/Vhat I claim is:

1. A dividing strip of the class described, having longitudinal outer edges, and oppositely disposed anchor segments pressed out from the body of the strip, and located nespectively between the central longitudinal line and one of the longitudinal edges of the strip, with free ends inclined inwardly relative to the side of the strip and forming openings in the strip each of which extends above and below the central line thereof between oppositely disposed segments.

2. A dividing strip of the class described having longitudinal outer edges, and op-' positely disposed groups of anchor segments 7 pressed out from the body of the strip, with tle respective groups located between the central longitudinal line and one of the longitudinal edges of the strip, the segments of the respectivefgroups having free ends in clinedinwardly relative to the side of the strip, and forming openings in the strip each of which extends above and below the central line thereof, between oppositely disposed groups of segments.

3. Incombination with the underbed and the top layer of a terrazzo flooring, a dividing from the body of the strip, and located respectively between the central longitudinal line and one of the longitudinal edges of the strip, with free ends inclined inwardly relative to the side of the strip, and forming openings in the strip each of which extends above and below the central line thereof between oppositely disposed segments, and with the segments on one side of the central longitudinal line of the strip embedded in the top layer and the segments on the other side of the central line embedded in the underbed.

ROBERT W. HARDIE.

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