US1011274A - Iron or nosing for concrete work. - Google Patents

Description

E. W. THOMPSON. IRON OR NOSING POR CONCRETE WORK. APPLI OATION FILED NOV. 14,1910. 1,011374.. 1

Patented Dec. 12, 1911 EVERT W. THOMPSON, OF NILES, MICHIGAN.

IRON OR NOSING FOR CONCRETE WORK.

Specifieation of Letters Patent.

Patented Dec. 12, ieri.

Application filed November 14, 1910. erial No. 592320.

To all whom it may cancer nn h t i Be it known that I, EVERT 7. THOMPSON,

Niles, Michigan, have invented certain new and useful Improvements in Irons or Nosngs for Concrete lVork, of which the following is a s'pecfieation.

This invention relates to improvements in rons or nosings for concrete stairs, columns, etc.

My improved corner iron is especially designed by me for use as a corner iron or nosng for concrete stairs, curbs, columns, pe's, and other concrete structural Work.

The main objects of my invention are to provide an improved corner iron or nosing for concrete work, such as 'stairs, curbs, columns, piers and various other concrete st-ructures, which is very secure and one which serves, in a measure, as a reinforcing element or member, and is econoical to produce and easily placed.

Further objects, and' objects relatng to a citizen of the United States, residing at structural details, will definibely appear from the detailed description to follow.

I acconplish the objects of my invention by thedevices and means' described in the following specication. i

The invention is clearly defined and ponted out in the claims. i

A structure, which is a preferred embodiment of my invention, is clearlyillustrated in the accompanying drawing, 'forming a part of this specification, in which:

Figure 1 is adetail perspective View of a stair embo'dying the features of my invention. Fig. 2 is an inside perspective view of my improved .corner iron or nosing.

3 is a det-ail of a column embodying myimproved corner iro'n. V

In the drawing, similar reference numerals refer to similar parts throughout the several views.

Referring to the drawing, 1 represents the body of a concrete stair structure, in connection with which my improved corner or nosing is shown.

-My improved corner iron 2 is angled in cross section, the angle being rounded,'as shown. On each edge is an inturned flange 3, the flanges being disposed substantially at right angle to each other, as is shown. On

` these fianges are laterally-projecting arms'4,

the arms being struck outwardly from the edges of the flanges. These arms are given a quarter twist at 5, adjacent to the flanges,

so that they lie in planes substantially parallel with the sdes or the sui-faces of the concrete body in which they are embedded. The corner iron is preferably embedded in the concrete so that its outer surface is substantially flush with the surfaces of the concrete body. The concrete material filling the corner iron and embedding the flanges thereof and the arms on the flanges, the arms are very firmly attached and do not tend to cause the concrete to split. fact, so securely at-t-aohed as to serve as a reinforcing element.

In Fig. 3 I show my improved corner iron applied to a column.

My improved 'corner iron or nosing is very simple in structure and economical to produce, both in the matter of 'the amount of material and labor, and, further, it is easily applied during the process of Construction. The body of the corner iron or 'nosing can be curved, as indicated, or provided ,with a' They are, m

1. The combination with a concrete body, i

' of a corner iron or nosing piece having inturned fianges at its edges disposed' in planes substantially at right angles to each other, said flanges having -slaterally-projecting, dove-tailed arms struck out from their edges, the arms of the two flanges being disposed in a zigzag relation, and having quarter twists therein so that .they lie in planes sub stantially parallel with the surfaces of the concrete body in which the iron is embedded so that its 'outer surface is substantially flush with the surfaces of said body.

2. The combination with a concrete body, of a corner iron or nosing piece', having in- A turned flanges at its edges disposed in planes substantially at right angles to each other and with the surfaces of the body in which they are embedded, said flanges having lat erally-projecting arms struck out from ther edges, the arms having quarter twists therein so that'they lie in planes substantially at right angles to each other, and substantially parallel with the surfaces of the concrete body in which the iron is embedded so that its outer surface is substantially flush wth the surface of said body.

3. As an article of manufacture, a corner iron or osing piece having inturned flanges at its edges disposed in planes substantally at right angles to each other and having laterally-projecting dove-tailed' shaped arms -struck longitudinally from their edges, said 'arms having twists therein, the arms of the two flanges being disposed in a zigzag relation.

4:. The eombination'with of a corner or nosing piece having inturned flanges embedded in said body, said flanges having outwardly-projecting arms on their edges, the arms being disposed substantially at right angles to the flanges and being struck longitudinally from the edges of the fianges and having twsts therein, for the purpose specified. v

5. As an article of manufacture, a corner iron or nosing piece havin 'inturned narrow flanges at 'its edges, said anges having lata concrete body;

erally-projecting arms strnck lqngitudinally from their edges, the length of the arms being materially greater than the width of said fianges.

6. As an article of manufacture, a corner iron or nosing piece, having inturned narrow flanges at its edges, said flanges having laterally projecting dove-tailed shaped arms struck longtudinally from their edges, said arms having twists therein.

In witness Whereof, I have hereunto set m'y' hand and' seal in thepresen'ce of two witnesses. I

EVERT W. THOMPSON; [L. 5.] Witnesses: I

WILLIAM DALY, WM. H. MCCLENAHEN.

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