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Publication numberUS1139987 A
Publication typeGrant
Publication dateMay 18, 1915
Filing dateFeb 16, 1915
Priority dateFeb 16, 1915
Publication numberUS 1139987 A, US 1139987A, US-A-1139987, US1139987 A, US1139987A
InventorsLewis N Lukens
Original AssigneeLewis N Lukens
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Device for spacing and supporting reinforcing-bars in concrete work.
US 1139987 A
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Description  (OCR text may contain errors)

L. N. LUKENS. I DEVICE'FOR SPACING AND SUPPORTING REINFORCING BARS IN CONCRETE WORK.

APPLICATION FILED FEBLIG, I915. 1,9?

entree srarns LEWIS Ni LC'K'ENS, 0F PHILADELPHIA, PENNSYLVANIA. l

DEVICE FOR SPACING AND SUPPORTING REINFORGING-BARS- IN CON CRETE WORK.

PATENT OFFECEQ l Patented May is, 1915.

Application filed February 16,1915. Serial No. 8,495.

To all whom it may concern:

Be it known that I, LEWIS N. LUKENS, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Devices for Spacing and Supporting Reinforcing-Bars in Concrete Work, of which the followin is a full, clear, and exact description, reerence'being had to the accompanying drawings, which form a part of this specification.-

My invention relates to reinforced concrete construction and more especially to de vices for supporting and spacing the reinforcing bars. Such devices, commonly known as spacers, are well known and those of the preferred type comprise a bent wire structure having at opposite ends eyes to receive the bars and legs for holding the eyes above the level of the wooden centering used in forming the floor.

My improvement relates to spacers of this type, the object being to effectually support the bars, to space them equidistantly, to insure the maintenance of the bars in their spaced relation, and to facilitate the positioning of the bars. a

A preferred embodiment of the invention is shown in the accompanying drawings, in whichs Figure 1 is a perspective view showing floor construction comprising a number of reinforcing bars supported by my improved devices. Fig. 2 is a perspective side view of one of the supporting and spacing devices. Fig. 3 is a perspective end view of the same.

Fig. 4 is a View, similar to Fig. 3, of a modification. I

The device comprises a single length of wire, which preferably possesses substantial elasticity, and is bent to form'a main body portion or connecting member 1), eyes a for the reception of the reinforcing bars or rods, and end supporting members d e for posi-- tioning the eyes a substantial distance above the wooden centering a. The eye 0 is formed by bending the wire at the end of the memher 6 downward, around and upward and the supporting member at is formed by bond ing the wire at the end of the eye downward and laterally to form a leg cl and then transversely to form a foot 6.

As shown, the bend of the eye immediately adjacent to the supporting member extends substantially above the level of the connecting member, so that the eye opens inward as well as upward; this feature being accentuated by bending the wire forming the eye successively downward and outward and upward and inward.

While the supporting members at oppositeends of the spacer are duplicates, the leg (Z of one supporting member is at one side of the main body, while the leg d of the other supporting member 'is at the other side of the main body, eachleg being preferably inclined in an outward as well as a lateral direction. By reason of its lateral inclinationthe lower end of each leg is located some distance tonne side of the main body. The foot e extends transversely to the-other side of the main body. Thus the spacer is perfectly balanced and readily maintains itself in operative position. As shown in Fig.

3 the foot may be perfectly straight; or it may be bent in an angular arch shape, as shown in Fig. 4.

The construction of the eye is such as to permit the reinforcing bars or the rods f to be readily and expeditiously applied to the spacers. While the bars are capable of yielding somewhat, which is a desirable feature, they tend always to assume their normal shape and thus eifectively maintain the bars or rod in uniformlyspaced relation.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is:

1. A device for supporting and spacing bars in reinforced concrete construction, comprising a wire extending between its end portions horizontally to form a connecting member, and beyond the end. of the latter bent successively downward and upward to form a retaining eye opening upward, and thence downward with a lateral inclination and laterally in the opposite direction to form a supporting member.

:2. A device for supporting and spacing bars in reinforced concrete construction, comprising a wire extending between its end portions horizontally to form a connecting member and beyond the end of the latter bent downward below the level of the connecting member and thence upward subi 2'1 stantially above the level of the connecting A device for supporting and'jspacing bars in reinforced concrete construction 'necting nie nber b. te iform a retaining eye and thence downwev dwith a lateral inclination to form a supporting leg and laterally in an opposite direction to form a supporting foot.

4. A device for supporting and spacing bars in reinforced concrete construction, comprising a wire extending between its end portions horizontally to form a connecting member, and beyond the end of the latter bent successively downward and upward to form a retaining eye opening upward, and thence downward in a direction inclining both Literally and outwardly to form a supporting" leg and thence laterally in the opposite direction. to form a supporting foot. 5.. A device for supporting and spacing bars in reinforced concrete construction comprising extending between its end portions horiizontiiliy to form a connecting member and beyond the end of the latter sucessively downward and outward and upward and inward to above thelevel of the connecting member to form a retaining eye, and thence bent successively downward in a laterally inclined direction and laterally in the opposite direction to form a supporting member.

6 A device for supporting and spacing bars in reinforced concrete construction, comprising wire extending between its end portions horizontally. to form a connecting member and beyond the end of the latter succes'sively downward and outward and upward and inward to above the level of the H connecting member to form a retaining, eye; and thence bent downward in a direction inclining both laterally and outwardly to form a supporting leg and thence laterally in the opposite direction to form a su'pportlng foot.

4. A device for supporting and spacing bars in reinforced concrete construction comprising a wire extending between. its end portions horizontally to form a connecting member and beyond each end of the latter bent successively to form an eye and a supporting leg, the two supporting legs extending downward from the respective eyes in a direction inclining both laterally and outwardly end on respectively opposite sides of 55 the coiniecting member.

8. A device for supporting and spacing bars in reinforced concrete construction comprising a wire extending between its end portions horizontally to form a connecting; men'iber and beyond each end of the latter bent successively to form an eye and a sup porting member, one supporting member tending downward and laterally on one side of the connecting member and thence across to the other side and the other supporting member extending downward and laterally on the last named side of the connecting mem er and thence across to the first named side.

In testimony of which invention, 1 have hereunto set my hand, at Philadelphia, on this 22nd day of January, 1915.

LEWIS N. LUKENS.

/Vitnesses M. M. HAMILTON, E. E. WALL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3132448 *May 8, 1958May 12, 1964Colorado Builders Supply CoChair for concrete reinforcing rods
US3195278 *May 7, 1962Jul 20, 1965Superior Concrete AccessoriesDual lag screw anchoring insert for a concrete slab
US3368320 *Jun 28, 1965Feb 13, 1968Leslie Lowery JohnReinforcing bar and frame supports
US5408799 *Dec 8, 1993Apr 25, 1995Ron; EliMembers for reinforcing, supporting and tying steel bars for reinforcing concrete
Classifications
U.S. Classification52/687
Cooperative ClassificationE04C5/18