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1111152119411.l ' w_ @MESv F ` Filed Aug. 17, 1945 2,406,559 v - 5 sheets-shed 1 ` - FABRIC lFOR CONCRETE CONSTRUCTIONS Filed Aug.`1"7, 1945- \ s sheets-_sheet 2 0 Aug. 27, 1946. W. OAKES 2,406,559 FABRIC FOR CONCRETE CoNsTRUCTïoNs Filed Aug. 17,-1945 5- Sheets-Sheet 3 Aug. 27, 19,46. ì ` w, QAKEYS C n _2,406,559 FABRIC FOR CONCRETE COÑSTRUCTIONS >Filed. Aug. 17, 1945 5 sheets-sheet 4 . Aug. 27, 1946. ' w. QAKES _ 2,406,559 ' FABRIC Fon .CONCRETE CoNsTRUCTICNs Filed Aug. 17:, 1945 s) .0. D ` 5 Sheets-Sheet 5,- Patented Aug. 27, 1946 y 2,406,559 FABRIC-Fon CONCRETE coNsrRUcTloNs. ` Winíam'oakes, Hale, England ‘ I Application August 17 , 1945, 'sefia1No.61'1,o16 In Great Britain June V14, 1944v f ' , 11 claims. j Y (Cl. 'Y2-109) . 1 2 ‘ This invention relates to the manufacture and ness and easy manipulation of the weakened -useof a metal pre-form fabric or foundation fabricfor buildings, which mayV also serve as a areas. , The through holes along the panelallow of theendwise insertion of rods or studs or the reinforcement, and the invention provides a _fabric which is self-supporting, which can be like for the connection vof overlapping areas bent to -any desired-»shape without difficulty, which. is easily connected together in sections, and which forms a permanent `shuttering fora ,One practical embodiment of the invention comprises a sheet metal reinforcement member together. ‘ , . Y e , and' foundation ' fabric having rows of close perforations at spaced points to allow of easy poured or sprayed -concrete, cement or like ma terial...> The principalaimof the invention is to 10 bending and breaking at such rows, andhaving parallelcorrugations or flutes at spaced p‘oints, provide an alternative 'to the prefabricated each- corrugation orl ñute being intermittent, block type of house, or other buildings, which type requires the securing together of a- number first to one` side of the sheet` and then to the of preformed units, and results- in a structure l' other, so as to form a through passagev or tunnel which is composite, and thereby lacking the 15 along the sheet. Preferably the to-and-fro rigidity of a unitary structure. The present in vention allows of the erection of buildings in a parts of one corrugation are staggered, with re spect to those of the adjacent corrugation at each side. Also, the sheet is perforated at each similarly-convenient or more convenient manner, point where to-and-fro parts of a corrugation but results in a unitary in-situ-cast building. , -Foundation or from -fabrics for buildings are 20 or flute adjoin, and the ends of the ñute vparts are ,cut at an angle such as to leave a transverse known, of’which the most common examples are opening if» and when the sheet is bent across expanded metal and Wire mesh.v These, how the line of the corrugation at such point. ever, have the great drawback that, unless of a In the preferred forms of the invention,- the thickness and weight which> would put them far outside the range of economic use, they are not 25 perforations and corrugations are in alternate parallel rows, each rowV 0f perforations „ lying rigid and therefore cannot support themselves. between and parallel with two corrugations. In For example, if stood in a vertical plane, they stead of there beingfonly one row of perforations would bow and sag and even distort themselves, ateach fold-and-break line, there may be` two if >they did not fall down altogether. Also the sheets of material, being flexible are often diffi 30 or more rows. One convenient arrangement has cult to manage, and the connecting together of ‘ a central row of Vdiamond-shaped openings and -two .or more sections of such material, e. g. at the corner of a building, is an unscientiñc task, on each side cf it a row of triangularop'enings with their apices inwards. l Y ' . - According to another feature of the invention, .usuallyl'finickin'g to perform, and even at the in panels having side-by-side parallel‘rowsof` bestv a "mere»“hit and miss” attempt at finding 35 perforations and corrugations, the perforations suitable adjacent areas for connection together. are arranged so that, in each row, some of them l The fabrics of the present invention eliminate lie in line with the perforations between the to all these disadvantages.v They are of light and-fro parts of the adjacent corrugations, so weight, Well within the range of economic use, as, in effect, to provide breaking or bending they are rigid, and are able to support them 40 lines at right angles to those rows. Also, when selves» in any position for use, as well as being desired,.`the perforations in the fold-and-break adapted for the additional uses (e. g. as shutter lines and in the corrugations may be so spaced ing) above mentioned. as to leave breaking or .bending lines diagonally A form fabric according to this invention ` 45 acrossv thepanel. comprises a panel (usually of metal) having The invention will be more particularly de weakened areas to form fold-and-break lines at scribed with reference to the illustrations in the spaced intervals across i-t, and having parts accompanying drawings, wherein: pushed out in opposite directions to form through "Figa 1 is a perspective view of a portion of a l openings along it, the pushed-out parts being 50 panel according to ons of many possible examples such that two overlapping panels may mate to vof the invention; ` _ gether with the corresponding parts nesting one . Fig. 2 is a side edge view of the same; and in another Whilst vmaintaining a, through open Fig. 3 is an end View of the same; ing along them. By reason of the weakened Y Fig. 4 is a perspective View showing two over areas, the fabric may be folded to form corners, 55 lapping panels connected together; may also be bent to curved forms, without difli Fig. 5 is an end view of thev joint; cu1ty,-and may easily be severed by bending to Fig. 6 is a, perspective view of a panel folded and fro at those areas. The pushed-out parts, into zig-zag form for use as a wall reinforcement; in addition to providing the inter-engaging nest » 1 Fig '7 is a -perspective View showing afurther ing vlareas, give rigidity to the panel, to -resist 60 use of the panels as areinforcement> and as a. Ícrushing,¿and also to increase the relativeweak permanent shuttering for a wall; '~ >` j 2,406,559 to allow of easy bending and breaking at such rows, and having an'imperforate `portion con taining parallel corrugations or flutes at longi tudinally spaced points, each corrugation or flute being intermittent, ñrst to one side of the sheet to form the outline indicated by the broken lines, whereafter the concrete filling may be applied. The fabric remains as a permanent covering. Angle pieces may be used in corners to connect parts at right angles to each other. The invention is also useful for the construc and then to the other, so as to form a through tion of hollow floors and walls. In Fig. 14 a flat sheet of the fabric I4 co-operates with a folded passage or tunnel along the sheet. ' two rows of perforations, leaving an intermediate row between them; then bending at such inter mediate row to obtain a right-angled channel the corrugations so as to provide transverse bend 2. A form fabric according to claim 1, where in the to-and-fro parts in one corrugation or flutel sheet I5 indicated by broken lines, these being connected together where they nest at the parts 10 are staggered with respect to those in the next corrugation or flute. I6, after which the in-situ material is applied 3. A form fabric according to claim 1, wherein to form the joists and licor. there is a perforation at each point where to-and In Fig. 15 there is the single sheet of material fro parts of a corrugation adjoin, said latter per I'I to which are connected the- channel-shaped members I8, the upper ends of which are again 15 foration being at an angle to the plane of said panel.` connected to the smaller sheets I9 whereafter 4. A form fabric according to claim 1, where the concrete or the like may be applied for mould in the weakened areas and pushed-out parts are ing. in alternate parallel rows, each row of perfora The improved fabric can be used for light studded walling bent at any given angle to form 20 tions lying between and parallel with two corru gations. framing to support sheets of the same material 5. A form fabric according to claim 1, where which interlock as described, the piercings or per in the perforations and corrugations are in alter forations acting as “key” for outside rendering nate parallel rows, each row of perforations lying or inside plastering, together with screeds. between and parallel with two corrugations. 'I'he fabric may be sold in flat sheets or in 6. A form fabric according to claim 1, where rolls, and in any case can easily be broken up in there is a perforation at each point where to into small pieces by being bent to and fro along and-fro parts of a corrugation adjoin, wherein one of the bend-and-break lines, and may be there `are rows of perforations side by side with easily bent to form corners and angles or curves. Supporting piers 0r columns may be made by . the corrugations, and wherein some perforations first breaking the sheet metal into strips along in each row are in line with the perforations in form; and finally fitting four of such angles back to back, with intermeshing corrugations, short studs or longer rods being passed through the cor rugations, to hold the angles together. 'I'hose and-break lines. 7. _ A form fabric according to claim 1, where " in a plurality of said fabrics are in overlapping studs may have heads or other obstructions to prevent their falling completely through the cor- ._ rugations, and to facilitate their withdrawal, or they may be plain, and may be parallel-sided, or tapered. relation with the corresponding weakened and eiongated areas in contact and rods for locking the same together through said pressed-out sec tions. 8. A form fabric according to claim 1, where in a plurality of said fabrics are in overlapping relation with the corresponding weakened and elongated areas in contact and rods for locking In addition to its use as a form fabric to be the same together through said pressed-out sec encased in the applied concrete or the like, or as 45 tions, said overlapping fabrics> being bent into a permanent shuttering, it may be employed as a shape which is of the general outline of the a removable shuttering, in which case the rods desired structure. or studs connecting the parts together will be 9. A form fabric according to claim 1, where arranged exteriorly 0f the assembly so as to be in a plurality of said fabrics are in overlapping easily removed when shuttering is to be disman 50 relation with the corresponding weakend and tled, and building paper or the like will be used elongated areas in contact and rods for locking to cover the inner face of the fabric to prevent the same together through said pressed-out sec the concrete keying into the openings I. tions, said overlapping fabrics being bent into In an example of the invention, the corruga a shape which is of the general outline of the de tions arel spaced with their centres 1%” apart, 55 sired structure, said shape being filled with con they are of semi-circular section %" wide, and crete to form a unitary structure. the distance between the openings at the junc 10. A form fabric according to claim 1, wherein ture gf the forward and backward parts is also a plurality of said fabrics are in overlapping rela 11/2”. 'I‘he metal used is 2B gauge, the perfora tion with the corresponding weakened and elon tions are of hexagonal shape, with two sides of 60 gated areas in contact and rods for locking the each hexagon parallel with the rows. same together through said pressed-out sections, It is proposed that the sheet material be bent said overlapping fabrics being bent into a shape to shape on the site, as the structure is built which is of the general outline of the desired up, and that the concrete, cement or other mate structure, said shape a beam. rial be applied by means of a spray gun or the 1l. A form fabric according to claim 1, where like. in a plurality of said fabrics are in overlapping As above stated, curved forms may be made relation with the corresponding weakened and with the improved material, eliminating corners, elongated areas in contact and rods for locking say at chimney breasts to prevent abrupt shad the same together through said pressed-out see ows. The fabric constitutes a self-measuring 70 tions, said overlapping fabrics being bent into ' form material and can be bent and cut to shape a shape which is of the general outline of the on the site with unskilled or semi-skilled labour. desired structure, said shape a column. What I claim is: 1. A form fabric ofa single thin sheet of metal, having rows of close perforations at spaced points 75 WILLIAM OAKES.