US1120928A - Reinforcement for concrete. - Google Patents

Description

J. P. GOLDING. REINFORCEMENT FOR CONCRETE.

APBLIOATION FILED NOV. 27. 1908- 1,1'20,928. Patented Dec. 15,1914. 2 SHEETS-SHEET 1 DIE 6, 7 .Fi l. 7 4 7 I I \L 1'0 f w 1 1 W 0 I I J. F. GOLDING. REINFORCEMENT FOR CONCRETE.

APPLICATION FILED NOV. 2'7. 1908.

Patented Dec. 15, 1914.

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JOHN F. GOLDING', OF WASHINGTON, DISTRICT OF COLUMBIA.

REINFORCEMENT FOR CONCRETE.

To all whom it may concern Be it known that I, JonnF. GOLDING, a citizen of the United States, residing at \Vashington, District of Columbia, have invented certain new and useful Improve ments in Reinforcement for Concrete,- of which the following is a specification.

The invention relates to bars for concrete reinforcement, to be used singly or connected with each other as may be desired.

In order to make the invention more clearly understood 1 have shown in the accompanying drawings means for carrying it into practical effect, without limiting my improvements, in their useful applications, to the particular constructions which, for the sake of example, are delineated.

In said drawings-Figure 1 is a side view of a deformed bar containing those features of the invention which do not depend upon theconnection of two or more bars. Fig. 2 is a plan view of the same.-

Fig. 3 is a sectional view on a larger scale on line III-HI of Fig. 1. Fig. l: is a perspective view of a supplemental. member adapted to be combined with the bars. Fig. 5 is a plan View, showing portions of several bars connected. Fig. 6 is' a sectional view on line VI-VI of Fig. 5. Fig. 7 is a side view of another form of supplemental member. Fig. 8 is ahorizontal section showing the described bars assembled for a column reinforcement. Fig. 9 is a side View of a single bar having supplemental members for engagement with the concrete. Fig. 10 is a perspective view of another form of supplemental member. Fig. 11 is a perspective view of another form of supplemental or shear member.

Referring to the drawings, 1 is a bar,preferably rolled from steel, and formed with one or more longitudinal grooves 2 bordered by projecting lips 3. groove and lips are made relatively and respectively deep and outwardly extended, and the lips rounded as shown to avoid in ducing cracks in the concrete. This bar is deformed transversely at suitable intervals by external recesses l. These recesses.present at each end shoulders 5, of such depth as may be desired, for engagement with the concrete against longitudinal strains or slippage. The said shoulders may be vertical or more or less inclined to the axis of the bar; and by preference are formed principally or entirely in the extended lips there Specification of Letters Patent.

By preference the.

Patented Dec. is, rare.

Application filed November 27, 1908. Serial No. 46 1,58 1.

by leaving the-bar as a whole of full and unimpaired cross-section and strength. A convenient and efficient manner of forming the recesses t. is by bending inward the lips 3, as shown at (5, either during the operation of rolling the bar or by a subsequent rolling, pressingor swaging operation. The opposing lips may be bent into complete contact, or so as to leave between them a narrow opening or slit '5 leading into the seat 8 behind the bent parts (3 of the lips. A pressing inward of the exterior parts of the lips, as indicated in the drawings, by a. direct acting press provided with suitable dies, gives to the interior parts of the lips an inclination to a line or plane that is.

parallel with the bar, so that the seats thus formed within the lips are sufficiently conical or tapering to admit of the ends of the supplemental member being forced or driven longitudinally into the seats so as to wedge or fit within the same. To give greater extentof wedging contact or fitting the ends of the supplemental member may also be made tapering, though this last mentioned additional feature of formation is not regarded as essential. as above described may be laid separately Within the concrete mold or form, horizontally or in any other manner desired, and

the concrete filled in according to the usual practice.

I also provide for connecting the bars, when desired, to form a continuous flat web or fabric for slab or other work. By the same or equivalent means the bars, arranged vertically, may be connected one with another to form the reintorcement of a square, polygonal or round column.

The connecting means consist of supplemental members 9 having enlarged heads 10, which latter are adapted to he slid along the grooves and enter or be driven within the seats 8 so as to obtain a strong conned.

tion with the'bars. The supplemental members may be of plain double book form, as shown in Fig. 7; but are preferably of the shape shown in Fig. 4 the head 10 of which may wedge in the seat 8 while the shank 11 passes out through the slit 7.

An assemblage of the described bars to form a column reinforcement is indicated in Fig. 8. the bars in a polygonal or circular arrangement being connected with each other by the supplemental members.

The bar may, if esired, be used uncon- The bars constructed more tightly into the seats.

nected with another bar but With a series of supplemental members to take the shear strains of the concrete. Such a single bar is shown in Fig. 9. The supplemental mem- 5 bers may be of loop form as indicated at ,5 the shanks 11 may be formed with a bend it at one or both ends, or-at any suitable point, as shown in Fig. 8.

What I claim is:

1. A deformed bar for the reinforcement of concrete, formed with deep longitudinal grooves and rounded lips at its sides, and having the said lips bent inward at intervals, combined with a supplemental mem her having its end inserted longitudinally and hooked behind the bent portions of the said lips, substantially as set forth.

2.-- The combination of a bar formed with a longitudinal groove, and having the lips of the-groove bent inward at intervals formin seats and sn '1 )lemental members having tapering heads which fit the groove and are adapted to be driven longitudinally within the said seats, substantially as set forth.

3. The combination of a .bar formed with a longitudinal groove, and having the lips of the grooves bent inward at intervals forming seats withinclined orconical walls, and supplemental members having heads shaped to fit the seats, substantially as set forth.

1. The combination of a bar formed with opposite longitudinal grooves the lips of which are bent inward, and a supplemental member looped and passing from side to side of the bar and having its ends secured behind the bends of the lips.

5. In a metal reinforcement for concrete, a bar having a series of lateral pockets and stirrup shaped shear rods, each shear rod having its ends bent in the same. direction and inserted in pockets on opposite sides of said bar.

In testimony whereof I ailix my signature in presence of two witnesses.

JOHN F. GOLDING.

JAMES F. Gunner.

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