US918716A - Metallic reinforce for concrete construction. - Google Patents

Description

D. A. WEDMORE. METALLIC REINPOEOE FOR CONCRETE GONSTRUGTION.

APPLICATION FILED MAY 11} 1908.

Patented Apr. 20, 1909. 7

onirnn snares PATENT ()FFIQE. DANIEL 'A. WE-DMORE, o'F. PHILADELPHIA, PENNSYLVANIA, ASSIGNOR' T PHILADE'L can steer & WIRE 00., or PHILADELPHIA, PENNSYLVANIA'A conronn'rion on NEW JERSEY.

mien-mo nnmnoncn non oonenn'rn cons'rnnc'rron,

Specification of Letters Patent.

Patented April 2"0, 1969. 1

Application filed May 11, 1908. Serial No. 432,0(57.

To. all whom 'it'may concern:

Be it known that I, DANIEL A. WnnMonn,

-a citizenofthe United States, residing in Philadel hia, Pennsylvania, have invented certain mprovements in Metallic Reinforces i my invention is to eflect such result.

A further object of .my invention is to insure the retention of the rods intheir spaced positions, and to. provide a reinforcement, consisting of the rods and the tying means, that'can be made in a factory, rolled up and then placed on the job ready for use.

My invention is fully shown in the accom panying drawings, in which:

Figure 1, is a sectional perspective view showing the use of one form of mi im roved spacing and tying members for sla ina reinforced concrete floor Fig. 2, is a sectional view of the same, illustrating the rods and their supporting means inplace upon the wooden centering arranged to receive the concrete ;-Fig. 3, is a perspective view of one of the spacers shown 1n Figs. 1 and 2; Fig. 4, is a plan view'of the end of the spacing member shown inFigs. 1, 2 and 3, in engagement with a rod; Fig. 5, is an elevation of Fig. 4, showing the tie member in section'on the line aa; Fig.6, is a view similar to Fig. 2, show- 'ing another formgof spacer and tie, and the manner of using the same, and Fig. 7 is a perspective view of the spacing and tying member shown in Fig. 6.

As noted above, the particular feature of my invention consists in providing means for supporting, spacing and retaining the slab s employed in reinforced concrete floor construction. These slab rods have various cross-sectional contours, s ua're, round &c., and itis usually preferab e to em by deformed bars, as they are called, as ill ustrated in Fi s. 4 and 5. I

In ig. 1, a concrete floor is shown at 1, in

ro s. used which slab rods 2 are employed. These rods are spaced apart at proper intervals and supported and retained in position with respect to awooden centering 3 employed'in the for mation of said floor, by means of the members 4. These members have curved or bent ends 5 forming eyes for the reception of the rods; those of square cross section being referably emplo ed-with this form of tie and spacing mem er, although round bars may be used if desired. The bent or curved -end-s of the rods are continued downwardly to form supports 6 for engagement with the centering during the formation of the floor, such. portions having return" projections 7, disposed at a slight angle with respect to. the

portions 6, as clearly shown in Figs. 4 and 5, I

and these projections 7 engage the slab rods and form guards to prevent the'withdrawalof said rods after the spacing members have been applied thereto. This construction provides a lock whereb. the slab rod can not e withdrawn without estroying the spacing member. It also permits. the construction of the reinforcement in the shop and the folding of the same prior to being set up on the job.

Inv Figs. '6 and 7, I have shown a modified form of structure more particularly available foruse in connection-with round slab rods. This member-d is provided with the curved or bent portions 5? forming eyes which embrace the rods 2, and by extendin curved ortion a little more than he. f-way' around t e rod, a spring lock will be provided by the ends of the spacing members which will effectually maintain said rods in proper positionwith respect to each other. These spaci'n members have legs 6" extending atan ang e from the inner portion of the curved ends, and these serve-to su port the rods at theproper distance above toe centering during the process of laying the concrete floor. i This form of tie and spacin member is advantageous for use on the jo as the friction "hold obtained by the narrow throat is hardly sufficient to permit formation of the rein force in the shop, such as is contemplated 1"" with the useof the device shown in Figs.

1 to .5. The supporting, spacing and retaining members made in accordance with my invention are easily and cheaply manufactured; 10E

may be readily applied to the slab rods as such 85 disposed in said eyes.

illustrated herein, and besides servin to space these rods; they securely hold tiem in roper relative position.

claim:

1. As a new article of manufacture, a sup porting and spacingmember for use in reinforced concrete construction, comprising a bent wire structure having open-sided eyes at the ends of'the same, and guards integral with said spacing menibenfor engagement with rodsdisposed insaid eyes. I

2. As a new article of manufacture, a supporting and spacing member for use in reinforced concrete construction, comprising a bent wire structure having open-sided eyes at the ends of the same, supports extending from said eye portions, and guards extending from said supports for: engagement with rods 3. As anew articl'of manufacture, a supporting and spacing member for'reinforced concrete constructlon, comprising a bent wire structure having an open ended eye to receive and retain arod, a supportextending .from said eye, and a" guard continuous with the su port for engagement with said rod.

4. he combination, in reinforced concrete construction, of a series of tie-rods, a series of supports, and spacers carried by said supports, said spacers having curved portions to receive the rods and guards for engaging the rodsto prevent movement of the same.

5, The combination in a? reinforced concrete construction, of a tie rod and a' supporting spacer, said spacer having a curved portion to receive the rod, and an integral proj ection carried by said spacer and forming a gagement with the rods continuous with said supports, 7. A supporting and spacing member for tie rods having hooked portions to engage said rods, the-throat portion of said hooks being of less width than the diameter of the rod, supports carried by said member-adjacent the hooks, and guards continuous wlth said supportsfor engagement with the rods. 8. A supporting and spacing member for tie rods having hooked portions to engage said rods, su porting legs and guards integral with sai s acing member and continuous with said egs for the throats of said hooked portions.

9. A supporting and spacing member for tie rods having hooked portions to engage said rods, sup orts adjacentsaid hooks, and

sinte ral guar s'continuous with said hooks for t e throats of the same. i

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

- DANIEL A. YVEDMORE.

Witnesses E, P. WALLACE,

H. C. TooMEY.

Images