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March 1, 1938. ’ J. SYLVAN BUILDING ’ , CONSTRUCTION 2,109,655 V Filed June 13, 1955 I e Shéets-Sheet 1 1291 i 1 27 March 1, 1938. J. SYLVAN 2,109,655 BU'ILDING CONSTRUCTION Filed June 15,4955 i. 6 Sheets-Sheet 2 March 1, _]_ SYLVAN BUILDING CONSTRUCTION Filed June 15,’ 1935 2,109,655 6 Sheets-Sheet 3 QM kwn ' déseplz S Zvcaz March 1, 1938. I J_ SYLVAN 2,109,655 BUILDING CONSTRUCTION Filed June 13, 1935 _ 6 Sheets-Sheet 4 March 1, 1938. 2,109,655 I J. SYLVAN BUILDING CONSTRUCTION. Filed June 13, 1935 ' 6 Sheet_s-She'et 5 March 1, 1938. 2,109,655 J_ SYLVAN BUILDING CONSTRUCTION 6 Sheets-Sheet 6 Filed June 13, 1955 m M a“ __ \ _ __ __ __ _ A __ __ ___ __ _ n n = __" __ _ ‘ ‘7 2,109,655 Patented. Mar. 1, 1938 UNITED STATES PATENT OFFICE ' I I ' 2,109,655 ' BUILDING CONSTRUCTION ' Joseph Sylvan, Chicago, Ill. Application June 13, 1935, Serial No. 26,466 9 Claims. This invention relates to improvements in me tallic building construction, and one of the ob jects of the same is to provide an improved sec tional construction of this character in which 5 the walls, ?oors, ceilings, partitions and roof will be of a hollow and sectional construction, the (Cl. 189-1) outside wall and the inside‘ wall or liner construc tion. Figure 7 is an enlarged detail sectional view, as _ ' taken on ‘line 1-1, Figure l. ‘ " , Figure 8 is a detail side elevation, partly brok- 5 en away and with parts omitted, of a portion of v the wall and window construction. parts constituting the same being secured to Figure 9 is a detail, horizontal sectional view gether and in position without the use of bolts or rivets, and in which construction interlocking taken on line 9-9, Figure 8, on an enlarged scale. Figure 10 is a detail sectional view, partly 10 joints will be provided between the parts or ele ments to form dead air spaces, and insulating broken away, taken on line iii-l0, Figure 8, on . material may be provided in such dead air spaces an‘ enlarged scale. Figure 11 is a detail sectional view, on an en to provide an effective insulation. A further object is to provide in a structure of larged scale, as taken on line I'l—-l I. Figure 1, Figure 12 is a side elevation, partly' broken 15 15 this character a supporting frame embodying angle or channel irons fastened together, and away, of the face of one form of wall construc ' which fastening means will be concealed from tion. Figure 13 is a detailed sectional view,’ on an en both the inside and the outside surfaces of the - larged scale, taken on line l3--l3, Figure 12. walls ‘and partitions. Figure 14 is an irregular, sectional view, taken A further object is to provide in a structure of 2 O this character an improved window and wall on line "-44, Figure 13, looking in the direction N) 0 construction, and improved means adapting the of the_ arrows. Figure 15 is a detail perspective view of one of window sashes for raising and lowering move the uprights or supports for holding the wall ele ments beyond the window opening. ‘ 25 A further object is to provide an improved wall, ments in, assembled relation. ceiling, floor and roof construction, the proxi~ , Figure 16 ‘is a detail perspective view showing mate edges of the elements of which are provided a manner in which the sections constituting one ‘with interlocking means, the elements or sections of the wall faces maybe supported by the sections being held in assembled relation without the use constituting the other wall face. Figure 17 is a detail perspective view, partly of bolts, rivets or other fastening devices, and im M- 0 30 proved means for supporting the elements in in section, showing another form of picture mold~ ing, ?oor or roof support. assembled relation. Referring more particularly to the drawings, To the attainment of these ends and the ac— complishment of other new and useful objects the numeral 2|] designates a suitable supporting base which may be constructed of @concrete or ('13 CI 35 as will_appear, the invention consists in the fea tures of novelty in substantially the construction, anyother suitable material, and to the upper combination and arrangement of the several surface of which base is secured in any suitable parts hereinafter more fully described and manner, an angle iron 2|, one flange‘ of which projects vertically, and to which angle iron is claimed and shown in the accompanying draw secured uprights 22, any number of which may ings illustrating this invention and in which Figure 1 is a fragmentary perspective view of a be provided. These channel irons are prefer portion of a building constructed in accordance ably arranged with the outer face of the bot toms of the channels disposed inwardly, and the with the principles of this invention. Figure 2 is a fragmentary perspective view of a upper ends of the uprights are secured together preferably by means of a U shaped channel 45 portion of the framework and a portion of the . iron 23, thereby providing a framework for the walls. Figure 3 is a detailed sectional view, on an enlarged scale, taken on line 3-3, Figure 2. Figure 4 is a sectional plan view of the build 50 ing construction, with parts broken away, and as taken on line 4-4, Fig. 1. Figure 5 is a detail perspective view, showing portions of the elements constituting the walls, ceiling, ?oor and roof, in assembled relation. 65 Figure-6 is a detail perspective view of the walls of the building. The walls, roof, ceiling, and partition elements are of substantially the same construction, and are formed of sheet metal comprising a body por tion 24 of any desired length, one of the lateral 0 edges of the body being shaped to form an in wardly opening substantially V shaped portion 25. A portion of the material constituting the other lateral edge of the element is also shaped 55 2 2,109,655 to form an outwardly opening substantially V shaped portion 26, and projecting from the outer , shaped portion 49, and in this manner the entire wall face may be formed (see also Figure 2). Within the hollow wall construction thus pro vided, the uprights 22 ‘are arranged as shown more clearly in Figure 4. The lower edge of the edge of the portion 26 is a ?ange 21, which is dis posed in substantial alinement with the lateral edge 28 of the element 24. This portion 21 is arranged at substantially right angles to the lowermost element 38 (see‘particularly Figures 1 portion 24 and is of any desired width, and the and 11) terminates short of the upper surface free edge thereof is bent inwardly as at 29 to of the ?oor formed by the elements 24, and a form a ?ange of any desired width. ‘ ?ller member 4| is provided which is itself formed 10 In constructing the ?oor and ceiling, a, series with an outwardly opening V shaped portion 42 of these elements are joined together, and a sec ond series of the elements are inverted'and co operate with the ?rst series to form the hollow structure. In thus arranging the parts (see par 15 ticularly Figure 5) the ?ange 29 on one of the elements rests against the under face of the por tion 24 of another element, while the substan tially V shaped portion 25 is seated within the V shaped portion 26 of another of the elements, and the parts are supported, to constitute the ?oor of the room or building, by means of an angle iron 3ll_which is secured to the uprights 22. Similarly, the structure which forms the ceiling or root‘ is supported by means of an angle iron 3| 25 also secured to the uprights 22. ' The upright walls are formed of similarly con structed elements 24 which are arranged on the outside of the building, and in this event the elements are arranged on end, with the interlock 30 ing or interengaging portions 25-26 running along one edge that engages over one of the ?ngers 43 on the ?ange 29 of the portion 21 of the element 24, so as to substantially ?ll the space between the lower edge of the element 38 and the floor. The lower edge of the element 4| is bent backwardly and preferably upwardly as at 44 and then downwardly as at 45, the free edge of the downwardly bent portion 45 being bent back upon itself as at 46, and extends down below the upper surface of the ?oor and between the 20 ?oor element and the ?ange 29 of the element 24. A molding member 41 provided along one edge with a rearwardly and upwardly projecting ?ange 48, serves to provide a ?nish for the structure at the ?oor line, the ?anged portion 48 extend ing beneath the upwardly inclined portion 44' of the element 4|. The upper edge of the element 41 may be bent back upon itself as at 49. Thus it will be seen that with this structure there will be provided a ?nish for the walls at 30 the ?oor line. The corners of the building preferably encom pass uprights 22, and are formed of a hollow 35 dered portion 34 extends beneath and engages " sheet metal construction, provided with a re cessed portion 50 for the end walls and recessed the lower face of the channel iron. The ends portions 5| for window sash or door frames. of the elements 24 are secured to the channel Each of the window openings is encompassed iron 23 in any suitable manner. by a frame designated, generally by the reference Similarly, the lower ends of the upright ele numeral 52 in Figure 1,v forming the top and side ments 24 are cut away to form lips 35 and a walls, and at the base of the window opening is shoulder 36. The numeral 31 designates an in provided a stool 53 formed of a sheet metal con verted U shaped member or channel iron, pref; struction shaped‘to form an outer sill 54, the erably constructed of some suitable light mate portion of the material at the edge of the sill 54 rial which is placed over the angle iron 2| in such being bent downwardly as at 55 and then rear 45 a position that the lips 35 at the lower ends of wardly and upwardly to form the downwardly the element 24 will engage the outer face thereof, opening V shaped portion 56, to receive the 45 and the shouldered portion 36 will engage and upper edge 51 of a wall element 58, the lower rest upon the top of the element 31, these parts edge of which latter rests against the sill 29 and being secured together in any desired or suitable the outer face of the inverted U shaped member 50 manner. ‘ 37 that stands astride of the channel iron 2|, the 50 The inner face of the upright walls is con parts being secured together in any suitable structed of an element 38 (see particularly Fig manner. > ure 6) along one edge 39 of which is formed an Beneath the window opening there is provided vertically, a portion of the element 24 being cut away as at 32 (see Figure 2) at the top to form a lip 33 and a shoulder 34, which lip 33 engages the face of the channel iron 23, while the shoul outwardly° opening substantially V shaped por 55 tion 40, and along the other lateral edge 4| there of is formed an ‘inwardly opening substantially V shaped portion 42. These elements 38 consti tute what might be termed a liner or the inner face of the wall structure, and are arranged 60 so as to extend transversely of the uprights 22. The upright elements 24 constituting the outer face of the walls are provided along the ?anged portion 29 with inwardly projecting lips or ?ngers 43 formed by cutting out portions of the ?ange 65 29 and de?ecting the cut out portions laterally, thereby providing upwardly opening, seats or hook shaped portions. Y , In assembling the elements 38, the outwardly opening V shaped portion 40 is hooked over the 70 ?ngers 43 so as to enter the seats or pockets formed by these ?ngers. This will cause the face of the free edge of the V shaped portion 40 to contact the face of the ?ange 29. The next ad jacent element 39 is then placed in position by 75 seating the V shaped portion 42 into the V an open space for a radiator or heating app» ratus, and the wall 59 of which space is formed by an upright member having a laterally project ing ?ange 60 at its lower edge, the upper surface of which ?ange is substantially ?ush with the upper surface of the elements 24 forming a part of the ?oor structure. The upper edge of the member 59 is bent forwardly and preferably slightly upwardly as at 6|, and the edge of the portion 6| is bent to form an upwardly project ing ?ange 62 which passes behind a downwardly projecting ?ange 63 on the stool member 53. The 65 ends 64 of the member 59 are shaped in a similar manner to form an open recess for a heating I apparatus. ' A ?ller member 65 is provided to ?ll the space between the angle iron 39 and the rear wall 59 70 of the opening or space. This filler member 65 rests upon the ?ange 69 and is provided with a downwardly projecting ?ange 66 which is adapted to be inserted between the ?ange 30 and the proximate portion of the adjacent ?oor element. 3. 2,109,655 Arranged to slide within the window opening are sashes 81-88, one preferably constituting a storm sash, and intermediate the sashes 81-88, may be provided a screen 88. The sashes 81-88 are guided in the open seats 5| of the adjacent upright members, and spacers 10 shaped to form a guideway ‘II intermediate its ends are provided with laterally projecting ?anges 12-13 that co operate respectively with the walls 14-15 of the 10 members 5| to guide the sashes 81—88 while the intermediate member or screen 88 is adapted to be moved in the seat or portion 1|. Weight cords 18 are provided which pass over suitable pulleys (not shown) and are connected 15 to the respective sashes and also to suitable weights for ,counterbalancing the sashes, and which weights move within the hollow wall construction. - - At the upper end of the wall, and adjacent the 20 ceiling there is provided a molding, provided with a portion 11 of any desired width. One edge of this portion is shaped to form a laterally‘ pro jecting ?ange 18 that is adapted to engage over a portion of the angle iron 3| and beneath the 25 adjacent surface of the elements constituting the ceiling. The other edge of the element 11 is being formed in the same manner as the wall structure, maybe placed into position by insert ing the ends of the partition into the space be tween the adjacent elements 38. Tie or anchor plates 98 may be provided, for securing the parti tion in position. If desired, suitable anchor clips 91 may be pro vided for the uprights wherever necessary. In the form of the invention shown in Figure 1, the window sashes 81-48 and the screen 89 are adapted to be raisedso as to slideinto the hollow portion 98 (see Figure l) and the sashes being counterbalanced, this movement may be readily accomplished. Furthermore, suitable locking and holding means for the window sashes (not shown) may be provided. - 1.5 _ In the form of the invention shown in Figures 8 and 9, two windows 99-I00 are shown, the same being representative of two diiferent ?oors of the building, that is with windows superposed and in 20 alignment. _ ' b In this form of the invention the window sashes are provided with cross bars IOI between which the window glass is arranged. Provision is also made so that the window 25 sashes themselves may not only be raised but shaped to form a downwardly inclined portion 19 ' lowered beyond the con?nes of the window frame and a laterally projecting portion 80, the free opening, so as not only to provide a ventilating edge of-which latter is bent downwardly asat means but to also provide a means whereby the sashes may be lowered to facilitate cleaning the 30 30 8| to form an upright portion, and the edge of outside thereof. ~ this upright- portion is shaped to form a later To that end, the window opening I02 (see Fig ally projecting and inclined ?ange 82. The por tions 8| and 82 form an outwardly opening V ures 8, 9, and 10) is provided with a sill I03 and shaped seat adapted'to be seated in the V shaped ~ an upper or cap member I04. The outer sill I05 is shaped to provide an upwardly projecting 35 portion 40 of the adjacent element 38, and with . ?ange I08 that co-operates with a portion I01 the parts thus assembled there will be provided an open channel 83 extending around the upper of the sill I03 to form a space I08 for the inner .portion of the wall in proximity to the ceiling sash I09 to slide into, a ledge or projection “0 being formed upon which the lower edge of the for the reception of picture hooks. sash I09 may rest to hold the same closed. The 40 The roof 8‘ is formed of any suitable material 40 sill I05 is also provided with a downwardly pro and abuts an upright member 85 which is pro vided with a lower ?ange 88 (see particularly/ jecting ?ange I I I to co-operate with an upwardly Figures 1 and 2) that rests upon the portion 24 projecting ?ange II2 on a front member I I3 that co-operates with a wall IIII anda base II5 to of the adjacent roof element. This upright mem form a hollow space I I6 into which the sashes ber 85 extends preferably to the top of the chan 45 nel member 23 and is bent over the top of. the channel member from the inside to the outside face of the wall and overhangs the outer face of the wall as at 88, the overhanging portion being corrugated or suitably shaped to form a molding or ?nish for the top of the wall. ‘ The walls of the building are preferably formed of separate sections designated generally by the reference numerals 89 and 90 in Figure 8, so that 55 the sections may be fabricated at the factory and then shipped to the place where the building is to be erected. To that end, the angle irons 3| extend beyond the proximate edges of the ele ments 38 as well as beyond the lateral edges of 60 the upright members 24 so as to form‘ a space 9|. When the adjacent sections are secured together, angle irons 92 are provided, and these angle irons are supported in any suitable manner and ex tend across the structure as shown more clearly 65 in Figure 4, upright channel irons 93 being pro vided to support the angle irons 92, and to which uprights the angle irons 92 are secured in any I09 and III are adapted to be lowered. _ The outer sash H1 is adapted to be moved through an opening I I8 and the lower edge of the , sash H1 is‘ adapted to engage and rest against the ?ange II2 to hold the lower sash closed. When it is desired to lower either of the sashes I09--I I1, the former is moved laterally outward to disengage the shoulder IIO, and the latter is moved laterally inwardly to disengage the ?ange “2. These sashes I09 and H1 move upon suitable guides II9—I20, and the screen I2I also moves on guides I22 so that they may be raised. The screen I2I, however, is not adapted to be lowered ‘below the window sill. Obviously, the sashes are counterbalanced by weights I23 which move in a suitable casing I24 formed in the sides of’the window frame I02. The casing into which thesashes are adapted to be lowered is hollow, and outlet openings. I25 are provided as a means for draining the casing erally by the reference numeral 95 in Figure 4, in the event that water should ?nd its way there into from the outside of the building. The inner wall ill of the casing H8 is shaped to form the stool I28 of the window sill and the edge of this member I28 is bent downwardly as are inserted so as to divide the structure into rooms. Wherever a partition is to be employed a ?nish adjacent the face of the adjacent ele suitable manner. . ~ The space 94 thus provided constitutes a space 70 in which the ends of a partition designated gen the proximate ends of adjacent elements 38 ter 75 minate short of each other and the partitions, at I21 and then back upon itself as at I28 to form ment 38. _ . In the form of the invention shown in Figures 4 2,109,865 12 and 13, there is disclosed a means whereby the wall structures may be formed so that the wall sections will not only be superposed but will break joint with each other to simulate a stone or brick surface, and in that event the elements themselves are constructed of a smaller size. The inner and outer surfaces of these elements in this construction are formed of sections simi lar in construction to the sections 38 so that 10 sections in both the inner and outer faces of the wall run in the same direction. That is, the length of each of the elements is disposed hori zontally. . To that end there is provided any suitable number of uprights I28 of channel formation se cured together in any suitable manner, prefer ably “at their tops and bottoms by connecting members I30, and the channel uprights I29 areso arranged that the outer faces of the side mem 20 bers of the channels will be disposed adjacent the inner and outer faces of the wall structure. Each of the side walls of the channels I29 is pro vided with cut out portions I3I-I32 that are between the wall sections may be dispensed with. To that end an angle iron 3|” may be secured to the ?ange 29 of the portion 21 of the element 24, in any suitable manner such as by means of bolts, rivets, or may be spot welded, and the ?ange portion 40 of the sections” constituting the inner wall may engage and rest thereupon. This structure also serves as a means for rein forcing and bracing the elements 24. Obviously, any number of these angle irons II" may be em ployed and arranged in any suitable position with respect to each other. In Figure 17 the numeral I39 designates col umns or uprights corresponding to the uprights 22, and to one face of the uprights I33 angle irons 15 3Ib may be secured by suitable fastening devices such as bolts or rivets 3|”. A molding “I is shaped to engage and rest upon the ?ange of the angleiron and is shaped to form an upwardly opening channel or hook shaped portion I42 for 20 the reception of the picture hook. The molding III is shaped to form an offset portion providing a space I43 and the back of the hook shaped portion I 42 overhangs and is spaced de?ected laterally to form upwardly projecting ?ngers or hook shaped portions forming seats for from projections or supports I40 that are car portions of the wall elements, the portions I32 , ried by the uprights I39 so that the edge of the being off-set slightly as at I33 to form seats, wall section or element 38 may be inserted be for a purpose to be described. hind the molding, the space I43 allowing the In assembling the elements 38 for this struc edge to be raised so as to engage over the pro 30 ture, the outwardly opening V shaped portion 40 jection I40. ‘ is disposed within the seat formed by the lip I3I, The roof is adapted to engage and rest upon and the inclined surfaces of the walls of the V the angle iron 3|". _ shaped portions 40 and 42 respectively that form While the preferred forms of the invention the joint I34 on the inside surface of the wall, have been herein shown and described, it is to be do Q1 are so arranged that the V shaped portions 40 understood that various changes may be made in and 42 open upwardly while the V shaped por the details of construction and in the combine! tions 40 and 42 on the outside elements 38, that tion and arrangement of the several parts, with is the elements forming the outer surface of the in the scope of the claims, without departing from wall of the building, open downwardly so that the the spirit of this invention. 40 joint I35 formed by the abutting surfaces of these What is claimed as new is:-— two portions will not be in a position to permit 1. A metallic building construction embodying water to flow from the outside of the building a frame structure, said frame embodying up through the joint I35. In order to accommodate rights, hollow walls within which said uprights this structure, it will be manifest that the con tacting portions 408, or the V shaped portions of the elements 38 provide a portion of increased thickness. Therefore, in order to accommodate this increased thickness the offset portion I33 of the lip or ?nger I32 is provided. The adjacent ends of the proximate elements 38 may be secured together in any suitable man ner, such as by means of tie plates I36 (see par ticularly Figure 13) which themselves may be secured to the parts in any suitable manner. Obviously, the lips or projections I 3I and I32 may be arranged in any desired or suitable posi tion with respect to the uprights I29, and so as to permit of the staggered arrangement of the elements 38 and which arrangement is shown 60 clearly in Figure 12 of the drawings. Obviously, and if desired, the hollow forma tions of the various elements may constitute dead air spaces or if desired, suitable ?ller or insulat ing material I31 (see particularly Figure 4) may be provided ‘to ?ll the hollow spaces formed by the elements. - 30 35 40 are arranged, said walls comprising inner and outer faces, each of said faces comprising ele 46 ments formed of sheet material arranged edge to edge, the proximate edges of adjacent elements shaped to form interlocking portions, one of said edges forming a seat and the other edge shaped to coincide with and seated in said seat to main tain the sections against relative lateral displace ment, and means engaging certain of said ele ments for'supporting the elements in superposed relation, 2. portion of the element of one wall face beyond said seats being shaped to form spac ing means engaging the opposite element of the other wall face to maintain said walls spaced. 2. A metallic building construction embodying a frame structure, said frame embodying up rights, hollow walls within which said uprights are arranged, said walls comprising inner and outer faces, each of ‘said faces comprising ele ments formed of' sheet material arranged edge to edge, the proximate edges of adjacent ele ments being bent into shape and adapted to It will also be manifest that additional ?ller members I 38 may be provided wherever desired ing portions, and means carried by and project or necessary, and any other suitable bracing or reinforcing means, wherever necessary or desir ing from a lateral face of certain of said ele ments, and upon which means other of the ele able, may be installed. In Figure 16 there is shown a means whereby the sections of the outer face of the wall may be supported directly by the sections of the inner face of the wall, and in this event uprights 22 25 be inserted one into the other to form interlock ments rest to be supported thereby in superposed 70 relation, said elements being of a greater length than width, the elements constituting one face of the wall being arranged with their longitudinal diameters intersecting the longitudinal diameters 5 2,109,655 of the elements constituting the other face of ' 1y right angles to the body, an ,open recess of an the wall. 3. A hollow‘ wall structure, the inner and outer faces of which are both formed of a plurality of sections of sheet material, each of the sections constituting one face of the wall comprising a body, one longitudinal edge of the body being bent back to form an extension of substantial width projecting therefrom at substantially right 10 angles to_ the body, a recess-in said extension in close proximity to the body, the proximate edge of the adjacent section being bent to form a por tion to conform to and be seated in said recess and forming intermeshing means’ along the prox imate edges of adjacent sections, the other face of the wall formed of interlocked elements, and interengaging means between the said sections and the said elements for supporting the latter. 4. A hollow wall structure, the inner and outer 20 faces of which are formed of a plurality of sec tions of sheet» material, each of the [sections constituting one face ‘of the wall comprising a body provided with a portion along one edge shaped to form an extension of substantial width 25 projecting therefrom at substantially right angles to the body, intermeshing means along approximately V-shaped formation in said por tion in close proximity to- the junction of the said bent portion and said section and compris ing only a part of the said bent portion, the other edge of said section being also bent in the same general direction as the ?rst said bent portion and terminating considerably short of the free end of the latter, the said other edge being shaped to provide spaced walls‘ to ?t within andv con form to the said recess, the walls of the said other edge contacting the walls of the recess, the free edge of the' wall of said other edge terminating substantially ?ush with the edge of said recess, whereby the sections will be maintained against 15 lateral displacement with respect to each other. 8. A wall construction embodying a plurality of sections ‘formed of sheet material arranged edge to edge, the proximate edges of adjacent sections being shaped to form interlocking por 20 tions, one edge of each section being bent to form a portion of substantial width arranged at substantially right angles to the body, an open recess in and comprising only a part of the said portion and disposed in close proximity to the 25 junction of, said bent portion and section, the the proximate edges of adjacent sections and at the junction of said extension with said body, other edge‘ of said section being bent in the same general direction as the said portion to pro the other face of the wall formed of interlocked vide spaced walls, the said other edge terminat 30 elements, and supporting projections carried by ing considerably short of theffree end of said 30 the said extension and with which said projece - portion, the said spaced walls ?tting in and tions the elements of the other face of the wall contacting the walls of said recess, one face of engage to be supported thereby. 4 all of said sections when in assembled relation 5. A hollow wall structure the opposite faces. 35 of which are formed of sections of sheet material, providing a finished wall surface, the'longer of the proximate edges of adjacent sections being provided with interengaging formations to pro operating to provide at their extremities a struc tural support to which other materials may be vide a joint, and means formed by a portion of fastened to form another wall spaced from the said bent portions on the respective sections co the sections of one face of the wall and project- , ?rst said wall. 35 - ing laterally beyond said face and upon which 9. A wall construction embodying a plurality of 40 means certain of the sections of the other face of. sections formed of sheet. material arranged edge the wall rest to be supported thereby. to edge to provide a ?nished wall surface, the 6. A hollow wall structure, the inner and outer proximate edges of adjacent sections forming I faces of which are both formed of a plurality of interlocking grooves and projections whereby the sections of sheet material, each of the sections parts will be maintained against lateral displace 45 embodying a body, oneedge of which is bent to ment with respect to each other, one edge of each form a lateral projection of substantial width, a ' section being bent to form a portion of 'sub- ' portion only of said projection provided with an stantial width arranged at substantially right open recess 'in close proximity to the bend, the ’ angles to the body and having'an open recess ' ' opposite edge of the element being shaped to pro vide spaced walls to co-incide with said recess and adapted to be seated in the recess in the next ad jacent section, the said opposite edge terminating considerably short of the free end of said por tion, said sections in assembled relation being arranged so that the lateral projection on each section of one wall face will engage the section of the opposite wall face and provide spacing means for opposed sections. 60 . > '7. A wall construction embodying a plurality of sections formed of sheet material arranged edge to edge, the proximate edges of adjacent sections being shaped to form interlocking portions, one of the edges of each section being bent to. form a por-_ 65 tion of substantial widtharranged at substantial formed therein 'at_ substantially the junction of 50 the bent portion and said section, the opposite edge of the section also bent in the same general direction as the said portion and terminating considerably short of the freeend of said por-' tion and shaped to provide spaced walls to ?t at within and conform to said recess with the spaced walls contacting the walls of said recess, the free extremity of .the said portion on the respective sections being bent at substantially right angles 60 to said portion to form a supporting surface against which other materials-may be fastened to form another wall surface spaced from the‘ ?rst said wall surface. ~ JOSEPH SYLVAN.