US1280454A - Reinforcing member. - Google Patents

Description

El. D. HANCOCK.

REINFORCING MEMBER.

APPLICATION FILED IIAYII, I9I7.

LZSOAEA Patented 001;.1, 1918,

` ATTO ms nanars persas ca.4 Imnmdma.4 wAsmNc mn, n. c4

EDWARD D. HANCOCK, OF JOHNSTOWN, PENNSYLVANIA.-

REINFORCING- MEMBER.

Application filed May 17, 1917.

To all whom it may concern.'

Be it known that I, EDWARD D. HANCOCK, a citizen of the United States, and a resident of the city of Johnstown, county of Cambria, and State of Pennsylvania, (whose post-oiiice address is Johnstown, Pennsylvania,) have invented certain new and useful Improvements in Reinforcing Members; and I do hereby declare the following to be a full, clear, and eXact description of the invention, suoli as will enable others skilled in the art to which it appertains to make and use the saine.

My invention relates to metal shear bars in the forni of hooks adapted to be used to anchor reinforcing bars more firmly into the concrete and 'to strengthen the construction as a whole, thereby increasing the efficiency of the reinforcing bars.

Hy invention relates particularly to a construction comprising a plurality of shear bars, each made of a metal hook Aformed of bars provided with alternating projections and depressions adapted to t into or interlock with corresponding alternating projections and depressions of the reinforcing bar. By reason of this construction, the internal stresses in a reinforced girder become so rearranged that the girder is stronger for its size.

- The primary feature of the design of this hook lies in its adaptability to be applied at any time before the concrete is poured and it can be applied at any location desired without disturbing any of the bars already in place since it requires no eXtra appliances, except perhaps a piece of wire for convenience in erection, thus giving a firm and strong connection to the main bar without the use of clamps, ties or other special appliances. My construction is particularly adapted to bars having a central body portion, and a plurality of projections beyond the body portion, which projections may be curved or corrugated, the opposite edges of each pair of corrugations being parallel to each other, whereby the projections on each bar will neatly fit the depressions of a shear bar of the same kind. I wish it understood, however, that my construction is also adapted to other forms of reinforcing bars and particularly to those which have alternating proj ections and depressions on their surfaces adapted to contact or interlock with corre- Speccation of Letters Patent.

Patented @cia I, i918.

Serial No. 169,219.

sponding depressions or projections on the shear bar of similar outline.

Having thus given this general description of my invention, I will now, in order to make the same more clear, refer to the one sheet of drawings accompanying and forming part of this specification, and in which like figures refer to like parts.

Figure l is a side elevation of a part of a reinforcing member embodying my invention; Fig. 2 is a top plan view of that portion of the bar illustrated in Fig. l; Fig. 3 is a vertical transverse sectional elevation taken on the line III-III of Fig. 2; Fig. et is a vertical transverse sectional elevation taken on the line IV-IV of Fig. 2; and Fig. 5 is a side elevation of the entire reinforcing member on a reduced scale.

Referring now to the characters of reference on the drawings :-1 indicates a reinforcing bar with alternating projections or curved portions 2, and depressions 3. 4 indicates the shear bar whichl is bent into the form shown in the drawings, provided with a hook end 12, and a diagonally projecting portion 5 integral therewith. This shear bar 4 is made from a bar similar to the main reinforcing bar having similar proj ections 6 and depressions 7, so that the proj ections of the shear bar will fit into the depressions of the main reinforcing bar, thus firmly locking the bars together so that no longitudinal movement is possible. S indicates the iiattened portion of the shear bar i near the diagonally projecting end 5, on the bent portion 9, while l0 indicates the flattened portion of the shear bar 4L near the hooked end l2 on the bent portion 1l. This flattening of the corrugations or projections 6 on the bent portions 9 and 11 of the shear bar L will prevent interference with the projections on the bar l and permit the bars to "be fitted closer together. 13 indicates stay wires which are for the purpose of holding the bars together temporarily until the concrete is poured.

Although I have described and illustrated my invention in considerable detail, I do not wish to be limited to the exact and specific details thereof as shown and described, but may use such modifications in, substitutions for, or equivalents thereof, as are embraced within the scope of my invention, or as pointed out in the claims.

Having thus described my invention, what t ent is l. A reinforcing structure comprising a bar provided With 'a plurality of projections, a shear member provided with a similar plurality of projections, adapted to contact and interlock with the projections of the bar aforesaid, one end of said shear member being odset and bent to partially surround said bar, the other end being odset and bent atan 'angle to said bar.

2. A reinforcing structure comprising a bar provided with a plurality of sinuous projections and depressions, a shear member provided With a similar plurality of sinuous projections and depressions, a portion of said shear member being adjacent to the bar aforesaid With its projections, Within the depressions of the bar, thereby being longitiidinally fixed `relative thereto, the shear member being odset and having a hooked end adapted to partially surround said bar, thel other end of said shear member being odset and projecting at an angle to the bar aforesaid. I

j 3. A 'reinforcing member comprising a bar provided with a plurality of projections and depressions, a shear bar comprising a main body portion, one end of which is .odset and bent to form a diagonally projecting portion, the other end being odset and bent into a hook-shape adapted to partly surround the reinforcing bar, said shear bar having a plurality of projections and depressions adapted to fit into the depressions and projections of said reinforcing bar, thus firmly locking the bars together.

4f. A reinforcing member comprising a bar provided Witha plurality of sinuous projections and depressions, a shear bar of substantially` similar conformation, having one end odset and bent to form a diagonally projecting portion, the other end being odset and bent into hook-shape adapted to partly surround the reinforcing bar, said attached shear bar being provided With sinuous projections and depressions adapted to fit into and interlock with the corresponding depressions and projections of the reinforcing bar, whereby no relative longitudinal movement is possible.

5. A reinforcing member comprising a bar, having a plurality of corrugated flanges on at least one of two opposite sides, a shear bar of similar crosss'ection, one end of which is odset and bent to form a diagonally projecting portion, the other end being odset and bent into hook-shape adapted to partly surround the reinforcing bar, said attached shear bar having corrugated fianges adapted to lit the corrugations of said reinforcing bar and interlock With it, thereby preventing longitudinal movement, and means for holding the bars together While the concrete is poured.

In Witness whereof l hereunto adiX my signature. p

EDWARD D. HANCOCK.

Copies of this patent may be obtained for ve cents each, By addressing the Commissioner of Patents. Washington, D. G."

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