US1914107A

US1914107A - Metallic floor grid

Info

Publication number: US1914107A
Application number: US554276A
Authority: US
Inventors: Edward W Burgess
Original assignee: AO Smith Corp
Current assignee: AO Smith Corp
Priority date: 1931-07-31
Filing date: 1931-07-31
Publication date: 1933-06-13
Anticipated expiration: 1950-06-13

Description

METALLIC `FLOOR GRID Filed July 5l, 1931 000 0000I L0 03; @8838@ g@ 'f5 O "I6 IQC,[{ /Z 'Q OA Q O C f2 Q@ f7 090 00@ f3 O 3 O 3 O A TTORNEY.

INP .'.NTOR. l

Edward WBurgelss f Patented June 13, 1933 UNITED STATES PATENT OFFICE EDWARD W. BURGESS, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO A. O. SMITH CORPO- RATION, OF MIIVAUKEE, WISCONSIN, A CORPORATION 0F NEW YORK METALLIC FLOOR GRID Application led July 31,

Thisinvention relates broadly to metallic floor grids, such as disclosed in my former Patent No. 1,765,652 issued June 24, 1930,

for embedding in a floor or pavement and to increase the wear resisting quality of the tread surface thereof.

More specifically the invention relates to means for securing adjacent grid sections together, and to a flooring or pavement com-` m posed of a plurality of grid sections secured together by such means.

In the drawing which illustrates a preferred embodiment of the invention:

I Figure l'illustrates diagrammatically the i5 arrangement of a plurality of grid sections constituting a portion of a floor or pavement prior to the pouring of cement, concrete or other paving material around the grids, and also illustrates the arrangement of the clips 30 for securing the grid sections together;

Fig. 2 is an enlarged detail view of portions of two grid sections showing the manner of securing the two together;

Fig. 3 is a sectional view taken on a plane indicated by the line 3 3 in Fig. 2; and

Fig. 4 is a perspective view of one of the clips.

In preparing a wear resisting grid for incorporation in a floor or pavement, a plurality of grid sections are arranged in staggered relation as shown in Fig. 1 of the drawing and are secured together by means of clips 11.

Each of the grid sections 10 is made of a single piece of sheet'metal in a manner such as described in the patent vabove referred to, and comprises a plurality of longitudinal rows of paving material receiving rings or cups 12 which are secured together and maintained in spaced relation by means of webs 13. Each of the cups is provided with a plurality of'depending projections 14 for increasing the bond between the grid and the paving material. As shown in Fig. 2 of the drawing, the individual cups of alternate longitudinal rows are staggered, thereby providing rows of cups at diagonals to the longitudinal rows in each section.

The c-lip 11 for securing adjacent sections together comprises a channel'shaped member 1931. seriai no. 554,275.

having a web and side flanges 16. Struck down kfrom web 15 are a plurality of aligned retaining tongues 17 which are spaced from the web 15 a distance substantially equal to the thickness of the connecting webs 13 of the grid sections. The outer free ends of the tongues are bent down slightly as at 18 to facilitate entry of the connecting webs 13 into the space lbetween the web 15 and the tongues 17 when the clips are driven into 60 retaining position. The width 'of the'clips 11 is substantially equal to the width of the space between adjacent rows of cups and the flanges 16 are not as high as the cups.

In preparing grid sections, such as illustrated in Fig. -2, for incorporation in flooring or pavement, the grid sections are first arranged with the rows of cups of adjacent sections in substantial alignment. A clip 11l is then placed across the line of division of the two sections and between adjacent diagonal rows of cups of one section and corresponding rows of cups of the adjacent section with the tongues 17 of the clip disposed within the spaces between the connecting webs13, and the web 15 of the clips resting upon the connecting webs 13. Since the width of the clip 11 is substantially equal to the space between adjacent rows of cups, the diagonal rows of cups of adjacent sections will be B0 brought into proper alignment. The clip is then driven longitudinally to position the various connecting webs 13 between the tongues 17 and the web 15 of the clips. The diagonal rows of cups extending in one direction will not only be aligned, but the upper edges of the cups will be brought into substantially the same horizontal plane.

Another clip 11 is then disposed across the division line of the adjacent sections, but is so positioned as to extend in a diagonal line opposite to the diagonal line in which the first clip was positioned and it is then driven longitudinally in a manner similar to that described in connection with the first clip. By having the two clips disposed divergently with respect to each other, the last longitudinal row of' one section is aligned with the first longitudinal row of the second section in addition to aligning the diagonal rows of the two sections. The clips also act as a reenforcement for the floor or pavement to prevent cracking thereof along lines of division between adjacent grids.

rlhe ends of the adjacent grid sections are secured together by means of clips 11 extending at right angles to the line of division of the sections. As shown in Fig. 1, it will be clear that any size paving grid may be built up of a plurality of sections in a manner above described, and that the longitudinal and transverse or diagonal rows of cups will all be accurately aligned and the upper wear resisting edges of the cups will be brought into substantially the same plane.

After the grid has been built up, the concrete, cement, terrazzo, or other paving or floor material is poured in and around the gridv and leveled oic substantially flush with the tops of the cups. The depth of the clips being less than the depth of the cups, the latter will be covered over by the paving material leaving only the upper edges of the cups showing on the tread surface of the pavement.

Although the clips 11 have been described in connection with the particular floor grid shown, it is to be understood that the clips can be used with any form of grid which has equally spaced webs or similar parts with which the tongues 17 may cooperate and it is to be further understood that various modiications may be resorted to without departing from the scope or spirit of the invention.

What is claimed and desired to be secured by Letters Patent is l. A wear resisting grid for pavements composed of a plurality of grid sections, each having longitudinal and transverse rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, and clips extending across the lines of division of adjacent grid sections for securing the same together, said clips being disposed between adjacent rows of cups of one section and corresponding adjacent rows of cups of an adjacent section for properly aligning and spacing the longitudinal and transverse rows of cups of the several sections.

2. A wear resisting grid for pavements composed of a plurality of gridsections, each having longitudinal and transverse rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, and clips extending across the lines of division of adjacent grid sections for securing the same together, said clips each having a plurality of retaining tongues engaging the connecting webs between cups and being disposed between adjacent rows of cups of one section and corresponding adjacent rows of cups of an adjacent section for properly aligning and spacing the longitudinal and transverse rows of cups of the several sections and causing the upper wear resisting edges of the cups to lie in substantially the same plane.

8. A wear resisting grid for pavements composed of a plurality of grid sections, each having longitudinal and transverse rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, and clips extending across the lines of division of adjacent gridl sections for securing the same together, said clips each having a pluralityof retaining tongues engaging the connecting webs between cups, being of a width substantially equal to the width of the space between adjacent rows of cups and being disposed between adjacent rows of cups of one section and corresponding adjacent rows of cups of an adjacent section for properly aligning and spacing the longitudinal and transverse rows of cups of the several sections and causing the upper wear resisting edges of the cups to lie in substantially the same plane.

4;. A wear resisting grid for pavements composed of a plurality of grid sections, each having longitudinal and transverse rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, and clips extending across the lines of division of adjacent grid sections for securing the same together', said clips being disposed between adjacent transverse rows of cups of adjacent grid sections for aligning the transverse rows of one section with the transverse rows of the adjacent section and properly spacing the last longitudinal row of cups of one section with the rst longitudinal row of the adjacent section.

Y 5.- A wear resisting grid for pavements composed of a plurality of grid sections each having longitudinal rows of material receiving cups and webs connecting the cups and maintaining thesame in spaced relation, the cups ot alternate rows being staggered to provide rows of cups in each section at a diagonal with respect to 'the longitudinal rows of cups, and clips extending across the lines of division of adjacent ,grid sections for securing the same together, said clips being disposed between adjacent diagonal rows oi cups of adjacent grid sections for aligning diagonal rows of cups of' one section with diagonal rows of cups of an adjacent section and properlyl spacing the last longitudinal row of cups of one section with the first longitudinal row of the adj acent section.

6. A wear resisting grid for pavements composed of a plurality of grid sections' each having longitudinal rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, the cups of alternate rows being staggered to provide rows of cups in-each section at a diagonal with respect to the'longitudinal rows ofv cups, and clips extending across the linesof` division of adjacent grid sections for securing the same together, said clips being disposed between adjacent diagonal and longitudinal rows of cups of one section and corresponding rows of adjacent sections for aligning and properly spacing the rows of cups of the sections.

7. A wear resisting grid for pavements composed of a plurality of grid sections each having longitudinal rows of material receiving cups and webs connecting the cups and maintaining the same in spaced relation, the cups of alternate rows being staggered to provide rows of cups in each section at a diagonal with respect to the longitudinal rows of cups,

and clips extending across the lines of division of adjacent grid sections for securing the same together, said clips each having a plurality of retaining tongues engaging the connecting webs between cups and being disposed between adjacent diagonal and longitudinal rows of cups of one section and corresponding adjacent rows of adjacent sections for aligning and properly spacing the longitudinal and diagonal rows of cups of the sections.

8. A wear resisting grid for pavements composed of a plurality of grid sections each having longitudinal rows o material receiving cups and webs connecting the cups and maintaining the same in spaced relation, the cups of alternate rows being staggered to provide rows of cups in each section at a diagonal with respect to the longitudinal rows of cups, and clips extending across the lines of division of adjacent grid sections for securing the same together, said clips each having a plurality of retaining tongues engaging the connecting webs between cups and being of a width substantially equa-l to the Width of the space between adjacent rows of cups and being disposed between adjacent diagonal and longitudinal rows of cups of one section and corresponding adjacent rows of adjacent sections for aligning and properly spacing the longitudinal and diagonal rows of cups of the sections.

9. A clip for securing together floor grid sections having aligned rows of material receiving cups, said clips comprising a sheet metal strip having a plurality of aligned tongues struck down from one side thereof and extending in the same direction longitudinally of the clip for engaging corresponding parts of adjacent sections and being of a width substantially equal to the width of the space between adjacent rows of cups.

. In witness whereof I have signed my name at Milwaukee, Wisconsin, this 28th day of Ju1y,19s1.

EDWARD w. BUReEss.