US1400570A - Reinforce-bar - Google Patents

Description

E. J. PAQUE REINFORCE BAR.

APPLICATION FILED SEPT.

Patented Dec. 20, 1921.

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EDWARD J. EAQUE, 0]? CINCINNATI, OHIO, ASSTGN'OR TO THE POLLA-K STEEL COMPANY, 0F CINCINNATI, @HIO, A CORPGRATION OF? OHIO.

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r Specification of Letters Patent. Patented Dec. 20, 1921.

Application filed September so, 1921. Serial No. 504,506.

To all whom it may concern Be it known that I, EDWARD J. PA UE, a

'citizen of the United States of America,

and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in a ReinforceBar, of which the following is a specification.

My invention relates to certain improvements in deformed reinforcing bars for concrete, as will be hereinafter more definitely pointed out.

' An object of my invention is to produce a bar for the purpose stated wherein the lugs formed on the bar maybe extended therefrom at'th'e greatest distance with the least possible weakening of the bar as a result thereof.

Another object'is to provide a bar that is easily rolled and upon which the lugs ma be readily and easily formed.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which Figure 1 is a frag-mental side elevation of a bar embodying my invention.

Fig. 2 is a sectional view on line 2+2 of Fig. 1.

Fig. 3 is a sectional view on line 3-3 of Fig. 2.

The bar A may be round or oval in cross section and has formed on it the n which extend radially from the body a of the bar. The one end oi each lug leaves the body on a gradual curve at the end of which the lug attains its maximum width. From the place of the maximum width of the lug, the other end of the lug is precipitated sharply toward the body of the bar. By providing the lug with this abrupt ent (L39 it is possible to give to the lug the maximum of bearing surface a upon the concrete when embedded therein without seriously weakening the bar. This is readily apparent by considering the quantity of ma terial that would be taken from the body a in order to continue any lug past the abrupt end and give to the lug beyond such abrupt end, a form similar to that portion of the lug leading up to the abrupt end. The bearing surfaces a of the lugs are inclined or tapered, whereby greater area is given thereto than were they formed parallel. This structure also facilitates the forming of the lugs when the bar is passed between the rolls employed .to form said lugs.

The lugs extend through an arc ,ot sub-i stantially 90 and are preferably spacedin pairs longitudinally of the bar, the lugs of each pair being disposed substantiallyat diametrically opposed positions of the bar, and adjacent pairs of lugs being disposed in staggered relation. The immediately adiacent lugs of adjacent -.pairs of lugs have their abrupt ends disposed in substantial alinement lon itudinally of the bar. This gives a very firm set of the bar and concrete upon oneanother.

What I claim is:

1. A reinforcing bar for concrete compris ing a body having a substantially spheroidal or spherical form in cross section, and lugs extending circumterentially of the body and each extending gradually outward from the body at one end and terminating abruptly at its other end.

2. A reinforcing bar for concrete comprisinga body having a substantially spheroidal or spherical form in cross section, and pairs of lugs extending circumferentially of the body, each lug extending for approximately 90 of the circumference of the body and the diametrically opposed ends of the pairs of lugs extending gradually outward from the body and terminating abruptly at their other ends.

3. A reinforcing bar for concrete comprising a body, and pairs of spaced lugs, each pair extending circumferentially of the body and spaced from one another at approximately 90, the lugs extending gradually outward from the body at one of their ends and terminating abruptly at the other of their ends, the abrupt end of one lug being immediately. adjacent of the gradually extending end of the other lug.

4. A reinforcing bar for concrete comprising a body, and pairs of spaced lugs, each pair extending circuinterentially of the body and spaced from one another at approximately 90, the lugs extending gradually outward from the body at one of their ends and terminating abruptly at the other of their ends, the abrupt end or one lug being immediately adjacent of the gradually extending end of the other lug, the lugs of adjacent pairs of lugs having their abrupt ends in substantial alinement longitudinally of the body.

I 5. A reinforcing bar for concrete comprising a body, and pairs of spaced lugs, the lugs of immediately adjacent pairs of lugs being disposed in staggered relation, each pair extending circumferentially of the body 7 and spaced from one another at approximately 909, the lugs extending gradually outward from the body atone of their ends and terminating abruptly at the other of their ends, the abrupt end of one lug being immediately adjacent of the gradually extending end of the other lug.

6. A reinforcing bar for concrete comprising a body, and pairs of spaced lugs, the lugs of immediately adjacent pairs of lugs 'being disposed in staggered relation, each pair extending circumferentially of the body and spaced from one another at approximately 90, the lugs extending gradually outward from the body at one of their ends or spherical form in cross section, andlugs extendlng circumferentlally of the body and each extending gradually outward from the body at oneend and terminating abruptly at its other end, the sides of the lugs tapering gradually from the outermost portion of the lugs to the body. r

8' A reinforcing barfor concrete comprising a body, and pairs of spaced lugs, the

lugs of immediately adjacent pairs of lugs being disposed in staggered relation, each pair extending circumferentially of the body and spaced from one another at approximately 90, the lugs extending gradually outward from the body at one of their ends and terminating abruptly at the other of their ends, the abrupt end of one lug being immediately adjacent of the gradually extending end of the other lug, the lugs of adjacent pairs of lugs having their abrupt ends in substantial alinement longitudinally of the body, the sides of the lugs tapering graduallyfrom the outermost portion of the lugs to the body. a

In testimony whereof, I have hereunto subscribed my name this 29th day of September, 1921. 7

EDWARD J. PAQUE.

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