US1921538A - Securing and supporting device for concrete reenforcement - Google Patents

Description

D. E. PRIEST 1,921,538

SECURING AND SUPPORTING DEVICE FOR CONCRETE REENFORCEMENT Aug. 8, 1933.

Filed March 16, 1932 Patented Aug. 8, 1 933 14,921,538 1 *sacmuNo AND SUPPOBTING DEVICE Fort CONCRETE REENF ORCEMENT Dwight Priest, Worcesten Mass assignor' to I, Parker Wire Goods Company, Worcesten'Mass a Corporation of Massachusetts W 1 Application March 16, 1932. i Serial No. 599,245

1 '8 Claims. (Cl. '72122) This invention relates .to concrete structures such as floors .or roadways in which steel bars a ;are used for reenforcement. v It is the object of my invention to provide im- 5 provedmeans for securing such bars together, and for supporting the reenforcing parts ata desired elevation above the foundationsurface on which the concrete is laid. k l

A further-objectis to provide a securing and lo supporting device which will firmly resistrockin di ac e h i a a My improved securing and supporting device is economical to manuiacture, substantial in construction, convenient inapplication and particularly. well adapted to its intended purposes.

My invention further relates to arrangements .and combinations ofparts which will be herein-v afterdescribed and more particularly pointed out in the'appended claims.- thedrawing, in; which 7 Fig. 1 is a perspective view of my improved securing and supporting device;

Fig. 2 is a side elevationthereot; i

Fig. 3 is an end view of the device, looking. in the direction of the arrow 3 in Fig. 2;

Figs. 4 and 5 are detail sectional plan views,

taken along the lines 44 and 55 in Fig.2;

Fig. 6 is a detail end view, looking in the direction of the arrow 6 in Fig. 2, and

Fig. 7 is a detail front elevation of a slight modification. I l

Referring'to the drawing, I have shown my im proved securing and supporting device as comprising a securing member 10, preferably formed from a single piece of wire rod, and a pair of brackets 11 by which the member 10 is firmly supported.

The securing member 10 is formed with a depending LI -shaped portion 15, a pair of upper U'-shaped loops 16 and 17 adapted to overlie an upper reenforcing bar A, (Fig. 1), and an 'ofiset hook-shaped portion 18 formed at the end of an arm 19 extending from the loop 1'7 longitudinally of a lower reenforcingbar B.

Each bracket 11-is preferably formed from a single piece of sheet steel and comprises an upright portion 20 and-a base portion 21. Ribs 22 are preferably formedby stamping them out of the sheet metal surfaces, and these ribs substantially stifien the brackets. The upright portions 20 are also provided with U-shaped recessed portions 25, adapted to receive the depending U shaped portions 15 of the wire rod securing members 10.

lower reenf o'rcing bar B Y rests upon; the. lateral A preferred form ofthe invention is "shown ln 'p1 'e downwardlywhen the portion 18' i's'ginse'rted ing an upwardly looped portion, a depending U- ing an upwardly looped portion, a depending The brackets 11 are aiso preferably provided. with laterally extending upper portions'30, underlying and su porti the lower, reenforcing bar B. The brackets 11 are secured together inany convenient manner, as byspot-weldingat the; points-C and D (Fig. 3), and when thus secured togethenthe brackets 11 firmly. engage andsupport the U -shaped portions 15 of the wire memberslO and holdthem firmly in assembled;rela- .tion. I v

' I The application of the device is clearly shown in Fig. 11, in which it. appears that the upper reenforcing 'barIA is .held in position by the upper looped portions 16 and 17,and that the +5 extensions 30 of the brackets 11., The device is firmly'secured in position by hookingtheend portion 18of the arm '19 under the lower rodB;

The arm 19 is so shaped that it"mustbe [disunder the bar B. Consequently there is a strong resilient force holding the portion 18 against the bar and preventing displacement thereof. 5

It thus' appears that my invention is simple in construction and that all parts are firmand rigid and adapted to strongly resist displacement. The lateral projections 30 providean extendedfiat surface for engagement with the lowerbar-B and thus prevent'rocking of the support under the reenforcing -bar' B. j i 1 i s .8

While the securing member is preferably made from a single piece of wire, many. of the advantags of the invention may be utilized by makingv crete reenforcing bars comprising a bar-securing member. formed of a single piece of wire rod hav shaped portion and a longitudinally. extended hook-arm, anda pair of angle brackets secured together back-to-back at each side of said depending U-shaped portion, said brackets firmly holding said bar-securing member at a predeter- 1Q mined elevation. 1 i 2. Adevice'for securing and supporting, concrete reenforcing bars comprising a'bar-securing member formed of a single piece of wirerod hav having an upwardly looped portion, a depend z ing U-shaped portion and a longitudinally extended hook-arm and a pair of angle brackets secured together back-to-back at each side of said depending U-shaped portion, said'brackets firmly holding said bar-securing member at a predetermined elevation and being 'formed of 1 sheet -metal with reenforcing ribs pressed outwardly therefrom to stiffen said brackets.

4. A device for securing and supporting concrete reenforcing bars comprising a bar-securing member formed of 'asingle piece of wire rod having an upwardly looped portion, a depending U- shaped portion and a longitudinally extended hook-arm'and-a pair of angle brackets secured togetherback-to-back-ateach side of said depending U-shaped portionyand having laterally extending top portions positioned to underlie and 1 support a lower reenforcing bar.

5. A device for securing'and supporting concrete reenforcing bars comprising a-bar-securing 'member formed of a single piece of wire rod having anupwardly looped portion,'a depending U- shaped portion and 'a' longitudinally extended hook-arm, anda pair of anglebrackets secured together back-to-back at each side of said depending U-shaped portion, said brackets having top portionsextending laterally in both directions to'underlie and support a'lower'reenforcing bar, and'said laterally extending top .por-

tions firmly resisting twisting of said securing and supporting devices under the reenforcing bars.

6. A device for securing and. supporting concrete reenforcing bars comprising bar-securing portions of wire 'rod withupwardly disposed loops, depending-offset portions and. a longitudi- ,nally extending hook arm, and a pair of angle brackets secured together back-to-back at each side of said depending ofiset portions and firmly 5 holding saidbar-securing portions at a predetermined elevatiomeach of said brackets having a substantial base portion and said base portions extending in opposite directions when the said brackets are in'assembled relation, thereby providing an extended balanced base of substantial area for said device.

7. 'A'device for securing and supporting concrete reenforcing barsv comprising bar-securing portions of wire rod with upwardly disposed loops, depending offset portions and a longitudinally extending hook arm, and a pair 'of angle brackets secured'togcther back-t0back at each side of-s'aiddepending offset portions and firmly holdingsaid'bar-securing portions at a predeter-" mined elevation, said brackets having recesses in their adjacent-faces closely fitting and engaging said depending portions. I

'8. 'A'device for securing and supporting con- I crete reenforcing bars comprising bar-securing" portions of wire rod -with upwardly disposed loops, depending offset portions and a longitudinallyextending hook arm, and a pair of angle brackets secured together back-to-back at each side'of'said' depending ofiset portions and firmlyholding said bar-securing portions at a predetermined elevation, said brackets having laterally-extending top portions positioned to underlie and support a lower reenforcing bar.

- 15 DWIGHT E. PRIEST;

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