US947194A - Bond-tie for walls and the like. - Google Patents

Description

w. H. BROWN. BOND TIE FOR WALLS AND THE LIKE;

APPLICATION FILED JULY 25, l1907.

947,1 94. f Patnd .um 18,1910.`

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L/ A 1w W. 11. BROWN. BOND TIE FOB. WALLS AND THE LIKE.

APPLICATION FILED JULY 25, 1907.

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UNITED sTATEs IPATENT oEEIoE WILLIAM HEEVEY BnowN, or Yonai, ENGLAND.

BOND-TIE ron WELLS AND THE LIKE.

Spectcation'of Letters Patent.

Patented Jan.

pplication med July 25, 1907. Serial No. 385,540.

To all 'whom 'it 'may concern:

Be it knownn that I,WILLIAM vI-IERVEII BROWN, a subject -of the King Vof Grreaty Britain, formerly residing at No. 62 Bootham, but now at No. 3 Crofts Terrace, 1n

thecity and county of York, England, have invented new and usefulv Improvements in Bond-Ties for Walls and the Like, of which the following is a specilication.

My invention relates to and is improved means for reinforcing building work by bonding or more elfectually securing together the courses orfunits of brick work or other building material in walls and. othery iliary strips or pieces. The main and auxiliary strips maybe of any desired length or width as required by the circumstances of the case. The auxiliary strips may be either formed during the manufacture of and in one piece with the main strip of the rein- .forcement or may be wired orsuitably fixed to the central or. main strip afterward.`

The auxiliary strips may according to the circumstances of the case be formed on =or fixed to the main strip across the breadth or along the side thereof and at any suitable or desired angle. The distances at which the said auxiliary strips shall be formed or fixed will be regulated by the requirements of each individual case. v

My reinforcement is applicable to all parts of 'the structure and to the angles of walls equally with thewalls themselves.v It is also applicable to land is especially adapted for bonding together double walls n or walls containing air spaces and for bonding brick Work to concrete or reinforced` concrete structures.

My invention is more particularly described vvith reference to the accompanying drawings in which:

Figure 1 shows a wire netting reinforcing strip. Fig. 2 shows a wire netting reinforcing strip strengthened by means of an additional central strand running parallel to' the outer edge or selvage. Fig. 8 showsi a wire netting reinforcing strip with a ,pair of additional strengthening strands. Fig. 4

shows la wire netting reinforcing strip vprovided with a series of auxiliary strips. Fig.

5 shows the application of the strip shown in Fig.. 4. Fig. 6 is an isometric view showingja portion of a double brick wall containing an air space and bonded together by-my reinforcement. Fig; 7 is a detail view showing one method of forming the` bond by doubling the reinforcement on itself and inserting 1t between the courses of brick work.

Referring now to the drawings, I insert between-thecourses of brick Work a stri of wire'nettingl 1 which may be of the orm shown in F1g.,1 or strengthened by means of central tensional strands as shown inv Figs. 2 and 3 in additionfto the selvage tensional strands. In each of these forms of the improved wire-netting, reinforcing or bonding strip' it Willbe observed that said strip comprises relatively heavy longitudinal selvage tensional vwires or strands and intermediate lighter wires or strands which are engaged with or 'coiled around the firstnamed 1 wires -or strands which may be termed. the warp strands, and which lighter strands, which may be termed the.-

weft strands are plurally intercoiled with each other. In other Awords the lighter elastic or flexible strands of the netting are joined together at proper intervals by being twisted several times around each other, thereby forming longitudinally disposed coils at these points of junction. The mesh of the Wire netting stripsis coarse enough so that theimortar may readily pass throu h the same, while the intertwisted coils of t e weft strands are of sufficient size to secure a good-hold on the mortar inwhich they are embedded, so that klongitudinal strains Vor tensions on' the reinforcing strips will be 4changed to' lateral'compressional strains or stresses on the mortar and the tensional strains will thus be absorbed iby the mortar, owinfr to theA hold in the latter which is .due

large y to the-grip afforded by the embeddedvertical plane or side by side from one course, By a series of such of brick yto another. strips l, I render the brick work monolithic and capable of resisting high tensional stresses while fracture Aand uneven settlements are rendered impossible.

It will be obvious that the arrangements of thebond shown in Figs. ,4 and are only shown by way of example and that `the series 'of strips 1 may be arranged between the courses of brickwork ina great number ofways'according to the circumstances ofl cach case` Owing to my bond the mortar between the courses is laced and interlacedwith woven the same time at right angles. parallel and tangential to the direction of every possible stress that can affect the brlck work, giving both elasticity and a erfect resistance to l shear. The action of wire netting when embedded in a mortar-joint, with a weight of brick work above it, is such that, when resisting a-tensional'stress in the direction ofv its length, the natural tendency of the wire 4mesh to elongate and reduce its sectional area is resisted bythe mortar which has be'-` come locked in the meshesg' the direct tensional stresses, are, as a result, to a great extent arrested. This action also comes into force when resisting 'forces that are acting at right angles to its length. On the contrary hoop iron or sheet metal has no resistance to shear and its effect can only be compared to a steel joint embedded in concrete or the purpose of reinforcement; it acts as an independent body, and not in unison with the brick work, or the like, which it is reinforcing.- The reinforcement can be supplied in rolls and can be moved forward'by the bricklayer as the work proceeds. It is found that instead of being a hindrance to the workman it gives his work an almost perfect alinement.

,In Figs. 4 and 5 I show the arrangement of a series of auxiliary strips 22 added to the width of the main strip 1. These auxiliary strips may also be added along the edge of the main strip if desired and in any case at any desiredangle. This form of bond is especially applicable for bonding an old wall,

- such as 23, to a. new wall, such as 24, or it may be used to bond a glazed or facing brick wall to a plain brick wall.

In Fig. 6 I show the sides of a double wall of brick (with air space between the sections) bonded together by step to step reinforcement 2, 'passing alternately from one wall to the other. In this :manner I am enabled, for instance, to build a nine inch double wall with a facing brick outside and with a common brick inside as effective in resisting dampness and of greater strength.

4not been reinforced.

different materials such as facing than a fourteen inch double wall which has It will 'be readily understood from Figs. 6 and that the reinforcement 2 is formed of a strip of wire netting .similar in all respects to the reinforcement l shown in Figs. 1 to 3.

In order to build s'ucha wall the strip isI first doubled and then p laced between the two courses of brick work in one wall, as shown 1n Fig. 7 and then passed to the other wall and again doubled between the two courses of brick in the latter wall and from thence back to the first wall where it is again doubled between two courses of brick and so on throughout the height of the walls.

It will be seen that, as shown in Fig. 6, I

may arrange a series of such strips 2 bonding together the two walls at any desired distance from each other.

It will be readilyl understood that these methods of reinforcement have the effect of adding to and strengthening the power of resistance of the structure to which itis applled, to and against pressure in orgfrom vany ldirection while it provides a satisfactogether rick with common brick or concrete with brick work or other building materials.

What I claim is:

1. A flexible or 'elastic reinforcing -bond formasonry structures, yconsisting of a coarse wire netting strip adapted to be embedded in the mortar and which strip is provided with a series of side extensions or auxiliary strips, as 22, of wire netting extending outward transversely from the bodyl of the main stri 2. A flexible or elastic reinforcing bond for masonry structures, consisting of a coarse wire netting strip comprising relatory and cheap method of bonding ftively heavy selvage warp strands and .relatively light and fiexible interposed weft strands engaged with said warp strands and lintertwisted together at intervals to form plural .coils disposedl'engthwise ofthe said netting strip, said strip being provided with said extenslons or auxiliary strips, as 22 of wire netting extending outward transversely from the body of the main strip.

3. A flexible or elastic reinforcing bond for masonry structures, consisting of a coarse wire netting strip comprising heavy selvage warp strands and one or more'heavy intermediate warp strands, and relatively light and flexible weft strands engaged with said warp strands and intertwisted with each other, independently of their point of connection with said war strands, to form plural coils which are disposed lengthwise -of the said netting strip, said strip being provided with side extensions or auxiliary strips, as 22, of wire netti extending outwardv transversely from t e body of the main strip.

4. A reinforced bonded double Wallcoinprising walls spaced apart and each formed of units of brick, stone, concrete or other buildingmaterials, a series of main wire netting strips arranged between the inner and outer parts of the double walls, andy a series of auxiliary wire netting strips connected to and extending outward from the main strips and passed between the courses .of the building materials forming said walls.

5. A reinforced or bonded double wall comprising walls spaced apart and each formed of units of building material and a series of wire netting strips Varran ed between the .inner and outer parts oft e double walls as a vertical step by step reinforcement, and passing alternately between the courses of the building materials forming said walls. f Y

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

WILLIAM HERVEY BROWN. Witnesses:

W. Boron, L. E. HAYNES.

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