US883768A - Reinforcing-frame and cementitious construction. - Google Patents

Description

v No. 883,768. PATENTED APR. 7, 1908.

v A. P. WHITE. REINFORGING FRAME AND GEMENTITIOUS CONSTRUCTION.

APPLICATION FILED SEPT. 27, 1906' 2 SHEETSSHEET l.

PATENTED APR. 7, 1908.

A. P. WHITE. REINFOROING FRAME AND OEMENTITIOUS CONSTRUCTION APPLICATION I'ILED SEPT. 27, 1906 2 SHEETS-SHEET 2.

Invento W (7? M2:

W Atty:

UNITED STATES PATENT OFFICE.

vALEXANDER P. WHITE, OF CALDWELL, NEW JERSEY, ASSIGNOR TO THE GENERAL FIRE- PROOFING COMPANY, OF YOUNGSTOWN, OHIO, A CORPORATION OF OHIO.

REINFORCING FBAME AND CEMENTITIOUS CONSTRUCTION.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed September 27, 1906. Serial No. 336,435.

To'all whom it may concern:

Be it known that I, -ALEXANDER P. WHITE, a citizen of the United States, and resident of Caldwell, Essex county, New Jersey, have invented certain new and useful Improve- Inentsin Reinforcing-Frames and Cementitious Constructions, of which the following is a specification, accompanied by drawings.

This invention relatesto reinforcingv frames suitable for embodiment in concrete and other masonry constructions and tocementitious constructions, and the objects of the invention are to improve upon the constructionof such reinforcing frames, render them more suitably adapted to meet the special requirements of different constructions, and enable the parts of the frames to be readily and quickly assembled.

Another object of .the invention is to cheaPen the cost of manufacture without impairing the strength of the parts, and improve on cementitious constructions.

Further objects of the invention will hereinafter appear and to these ends the invention consists of a reinforcing frame substantially as hereinafter more fully described and claimed in this specification and shown in the accompanying drawings, in which,

Figure 1 is a side elevation of a portion of a reinforcing frame embodying the invention;

, Fig. 2 is a side elevation of a double form'of a continuous concrete reinforcement; Fig.

7 is a partial plan view of Fig. 6.

Referring to the 'drawings, A represents a longitudinal base member which may .be a metallic rod or bar of any suitable cross section, in this instance a bar square in cross section bein shown by way of illustration. Connecte to the base member A by means of slats or tie pieces B is another or upper longitudinal member C, shown extendin v substantially arallel to the base member in Fig. 1 in or er to' illustrate the invention. In order to connect the members A and C, slats B of sheet-metal are provided, and according to this invention each slat is slit at the ends at D lon itudinally as shown the strips of metal at t e sides of each slit being bent outwardly away from each other out of the-plane ofthe body portion of the strap to form eyes or apertures for the reception of the main members of the frameand the members' A and C are passed through said eyes or apertures. The metal of the slats B is then pressedoor otherwise formed tightly around the members A and C, thereby forming a rigid reinforcing frame.

The slats or tie pieces B may extend at i right angles transversely across. the members A and C, or else they may be arranged 'at. other angles thereto as shown in Fig.1

and these tiepieces may all be parallel or not as desired.

In Fig. 1, the broad sides of the slats B are arranged outwardly, while in Fig. 3 each slat is given a half turn about its longitudinal axis, thereby bringing the narrow edges of the slat outwardly. preferably twisted tightly about the longitudinal members A and C, thereby clamping the slat tightly to said members. In Fig. 4

each slat is twisted several times about its longitudinal axis, making a very firm and rigid construction and clamping the slats tightly to the longitudinal members It is well known that the stresses in a concrete beam or girder follow certain lines.

Particularly the tensile strains, be inning at the top end of a girder or beam Wi 1 follow a line descending as it approaches the center ofthe beam or girder and then ascends as it approaches the opposite end. 'It thus follows that the greatest tensile strain is at the.

bottom of the central or middle portion of the beam or girder. In Fig. 2 a reinforcing frame is shown which is designed to withstand the strains met with in building construc- In this instance the base member A 9 tions. is connectedto the u er members E and F by means of theslats but as shown the upper members E and F slant upwardly from the center and the slats or tie pleces G neces sarily increase in len th from the center towards the ends of' t e reinforcing frame. The slats or tie pieces G in one side of the center may'all extend parallel to each other as shown, or they may be arranged. in any other desired manner. These slats G may also be perfectly flat as shown, or else they miiy be twisted as in Figs. 3 and 4.

n Fig. 5 an end view ofa reinforcing truss is shown in which there are three longitudinal members A and C connected by the slats The metal of the slat is placed end to end the central u shown a form of construction embodying my invention adapted for girder and beam frames for concrete reinforcement, so that a frame may be extended from one bay to the adjacent bay, making a continuous reinforcement. In the example shown the construction com rises two airs of like frames or trusses, t e frames of each pair being placed in parallel relation to each other and crossing the other pair midway of their length.

Each of the four frames may be described as formed of two frames shown like that of Fig. 2, although they may .be like Fig. 1

er longitudinal members being integral. designates this central upper member consisting of a middle depressed portion Iand descending ends K. 1

L designates one of the outer upper members which slants downwardly from its outer end as do the members E and F of Fig. 2.

M, M are the base bars or members, each of which extends under an end of the central upper member H and under theouter 11 per pression I members L the inner ends of these two ase members .M are spaced apart from .each other for a pur ose which will hereafter appear. All of t e up er and lower members are secured together by slats or tie frames G as already described. Two of these reinforced frames are placed side by side and preferably spaced apart from each other as shown in Fig. 7 of the drawin s. Two other frames likethese, excepting that the depres sion I in the central upper members is omitted, are then placed across these, the dein one pair of the frames permitting the four frames to lie in the same horizontal plane. A mass of concrete indicated at Oembeds the cross frames and completes the structure.

While I have shown the cross frames or trusses as arran ed in pairs it is obvious that the number of frames extending in each directionmmaynbe varied as the exigencies of the work require.

Obviously some features of this invention maybe used without others and the invention may be embodied in widely varying forms, therefore, without limiting the invention to the devices shown and described, and without enumerating e uivalents, I claim and desire .to obtain byilL following:-

1. A rigid reinforcing frame, (,omprisin main members and flat connecting meta slats, the slats having near each end a slit, the metal on. each side'. of.the slirrheing pressed in op osite directions to form an e e through wh1c the main members pass, t e

walls of the eyes closely embracing the main members.

2-. A rigid reinforcing frame, comprising main members and twisted flat connecting metal slats, the slatshaving near each .end .a slit, the metalflori each sideof the slit being pressed in opposite directions to form an e e through which the main members pass, t e' walls of the eyes closely embracing the main members.

3. A rigid reinforcing frame, comprising a main base member, lon itudinal members, each extending at an angle to said base member, and flat connecting metal slats, the slats etters Patent the having near each end a slit, the metal on each side of the slit being pressed in opposite directions to form an eye through which the main members pass, the walls ofthe eyes closely embracing the main members.

4. A rigid reinforcing frame, comprising two main members diverging from each other, and fiat connecting metal slats, the slats havin near each end a slit, the metal on each side 0 the slit'being pressed in op osite directions to form an eye through wh1c the main members pass, the Walls of the eyes closely embracing the main members.

5. A rigid reinforcing frame, comprising two main embers diverging from each other, and ,t isted flat connecting metal slats, the slats having near each en a slit, the metal on each side of the slit being pressed in opposite directions to forman e which the main members pass, t e walls of the eyes closely embracing the main mem- ALEXANDERP:WI IITE.

Witnesses OLIN A. FOSTER, A. L. OBRIEN.

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