US1724444A

US1724444A - Concrete reenforcement

Info

Publication number: US1724444A
Application number: US163063A
Authority: US
Inventors: William E White
Original assignee: KALMAN STEEL CO
Current assignee: KALMAN STEEL CO
Priority date: 1927-01-24
Filing date: 1927-01-24
Publication date: 1929-08-13
Anticipated expiration: 1946-08-13

Description

Aug. 13, 1929. w. E. WHITE CONCRETE REENFORCEMENT Filed Jan. 24, 1927 Patented Aug. 13, 1929. i i,

warren sures:

WILLIAM E.

PATETT rates. I

wri ten, or CHICAGO, ILLINOIS,'ASSIGNOR To K'ALMAN s'rnnr, co rAn or crnoneo, I LrNoIs, A CORPORATION or DELAWA E,

CON-CRETE REEN-FORCEMENT.

Application filed January 24,1927. Seria1'1 1'o.-163,Q6 3

My invention relates to concrete reenforcement, particularly intended for roads. and has more particular reference to an improvement on the construction shown in my prior Patent No. 1,518,866,-dated December 9, 1924.

An object of my invention is to provide the combination of an angular reentorcing bar and a chair for suitably supporting and positioning the bar relative to the concrete, in which it is to be embedded. To that end, I have modified somewhat the shape and proportions of the chair illustrated in my prior patent heretofore referred to, and

have located the chair in a position 90 clegrees removed from that required in the construction of my said prior patent.

The construction involves the use of a pair of inverted U-shaped supports, preferably composed of wire, each having a connecting member composed of a horizontal portion and looped portions formed as extensions of the legs. The supports are joined with capacity for relative oscillation in order that the chair may be collapsed for shipment. The joining member acts also to space apart the supports to provide for the reception of a leg of they angular bar between the loops of the support.

The invention will be more readily understood by reference to the accompanying drawing, in which: 7

Fig. 1 is a side elevation of a pair of supports and a bar construction in accordance with my invention;

Fig. 2 is a sectional view on the line 22 of Fig. 1;

Fig. 3 is a perspective view of the clamping and spacing member, and

Fig. 4 is a perspective view of the support and bar of my invention;

The angular bar illustrated in the drawings is T-shaped and includes a vertical leg or straight flange, 10, and a horizontal web, 11. i

The chair consists of a pair of supporting members of duplicate form. These members comprise legs, 12, a horizontal connecting portion, 13, and a pair of loops, 14, extending above the plane of the horizontal portion and formed as extensions of the legs, 12.

The inverted U-shaped supports, as described, are joined with capacity for relative oscillation by means of the member shown in Fig. 3 consisting of a block of stamping, 15, having parallel grooves, 16 and an intervening rib, 17. The grooves, 16, receive the horizontal portions, 13, of the supports and are suitably crimped over the said horizontal portions, as best shown in Fig. 2. The intervening rib, 17 acts to space apart the supports and serves as an abutment or support for the bottom of the leg, 10, of the T bar. When in the position of the drawings, the leg, 10, is pinched between the loops and firmly held in vertical position.

Obviously the construction is of extreme J simplicity and adaptability for, the required purpose. It is also obvious that modifications may be made in the construction shown without departure from the spirit of a my invention, and I do not wish to be limited except as indicated in the appended claims.

I claim:

1. A chair for supporting'angular bars, comprising, in combination, a pair of inverted U-shaped supports, each having a connecting member and an upwardly extending loop formed as an extension of one of the legs of a support, and a clamp having grooves spaced apart by a rib, said grooves being adapted to receive and hold said connecting members, the rib serving to support the angular member between the loops of the supports. j

2. Reenforcement for concrete comprising, in combination, an angular bar and a chair for supporting the bar, said chair comprising a pair of inverted U-shaped supports, the legs of which supports are joined by a horizontal member and by a loop projected above the plane of the horizontal member, and a member having a pair of grooves adapted to receive and pivotally hold the horizontal members of the supports, the fiaaterial between the grooves acting to space apart the supports and tosupport a leg of the angular bar held between the loops and extending parallel to the horizontal members.

3. Reenforcement for concrete comprising, in combination, a bar having a continuous straight flange and a chair for supporting the bar, said chair comprising a pair of inverted U-shaped supports, the legs of which supports are joined by a horizontal member and by a loop projected above the plane of the horizontal member and means for jointherebetween.

4. Reenforcement for concrete comprising, in combination, a bar having a continuous straight flange and a chair for supporting the bar, said chair comprising a pair of in- 10 verted U-shaped supports the legs of which supports are joined by a horizontal member and by a loop projected abovethe plane of the horizontal member, a clamp and spacer for oining the supports in operative relation and for spacing the loops to receive the flange of the bar thereloetween.

In testimony whereof I have aflixed my signature.

WILLIAM v E. WHITE.