US2863314A - Faced wall and connecting device therefor - Google Patents

Description

l Dec. 9, 1958 .l. A. VAN vooRDEN v 2,863,314 4FACE!) WALL AND coNNEcTING DEVICE THEREFOR Filed Aug. 3l, 1953 lll/111111111 United States arent tice 2,863,314 Patented Dec. 9, 1958 FACED WALL AND CONNECTING DEVICE THEREFOR Johannes Arnoldus van Voorden, Rotterdam, Netherlands Application August 31, 1953, Serial No. 377,467 6 Claims. (Cl. 72-19) The invention relates toa connecting device for a cladding, e. g., of natural stone, on walls, posts and other structural members. With buildings, often use is made of natural stone in order to embellish the whole and the natural stone, e. g., marble slabs, have to be fastened to walls, posts and other structural members, since the manufacture as a unit from natural stone is too expensive.

Naturally this manner of connections entails many difculties.

One of the greatest difficulties encountered when applying natural stone on, e. g., a concrete or brickwork wall is the corrosion of the natural stone by the chemical substances from the jointing mortar. When mortar is used to secure these slabs, the natural stone is often corroded by the Water and the chemical constituents of the mortar.

This not merely causes a decomposition process of the cladding but will detrimentally influence the color of the stone surface, which is so important for the beauty of the stone.

In order to overcome this objection thin slabs of natural stone are used. The thin slabs are connected to the wall by means of so-called tufts, i. e. the slab is fastened by mortar in a few places, so that behind the slab an air space is formed and the slab is spaced from the wall. This method has advantages but is limited to low wall structures, since it is practically impossible to apply a justified anchorage for high structures, especially if the natural stone is to be placed against a concrete skeleton.

Previous solutions to this problem were too expensive to be employable in an economic way. The purpose of the invention is to provide a connection which enables a very lirm attachment of the slab or cladding and can be applied to any building without the cladding coming into contact with mortar and the like and a sufliciently large air space for ventilation being provided behind the cladding.

According to the invention this is attained by using a hollow anchor connected in the structural member, and passing a tie-rod therethrough to hold to the anchor an assembling plate fastened to the cladding.

An embodiment of the invention includes an adjustable stop sleeve threaded onto the hollow anchor so that the face of the stop sleeve against which the assembling plate abuts can be screwed towards the wall or in the reverse direction. In this manner it is possible that the cladding slab, e. g., a large marmorated slab, which is provided with connecting plates at various places, may be accurately po-sitioned flat against the stops, and adjustments may be made when the wall shows large deviations with respect to the erection plane.

According to the invention the assembling plate is so made that it is fastened against the cladding by means of two or more screws, the center-lines of the screws being directed towards each other. The assembling plate includes a threaded hole which is central of the stop sleeve. The tie-rod is threaded onto this stud. The anchor terminates in a recess provided in the outside face of the structure member. The tie-rod is connected with the front face of the anchor by means of a nut and washer.

The invention is elucidated by an embodiment shown in the drawing.

Fig. l is a vertical cross-section through the wall, the anchor and the slab, taken along the line I-I of Fig. 2;

Fig. 2 is a side view of an assembling plate;

Fig. 3 is a side view of a supporting member.

In the wall 1 a hollow anchor is connected thereto. With concrete walls this is easily performed by drilling holesin the moulds at the desired place and passing the anchor through the holes, whilst with brick walls the anchor is wa1led-in when the wall is raised. At the other side of the wall a recess 3 is provided in which the anchor 2 terminates. With concrete walls or other structural members this recess can be readily obtained by applying a block at the inner side of the mould. At the side where the mould is to be applied the anchor 2 extends over a certain distance beyond the exposed inner wall surface and this anchor extension is provided with screw-threads. To the protruding part of the anchor a hollow cylindrical spacer member 4 is connected which is also provided with screw-threads, so that the distance from the inner face of this spacer member to the wall can be adjusted with respect to the exposed inner surface of the wall structure by more or less screwing on this spacer member.

Into the abutment or spacer 4, which e.. g., can be a screw-threaded sleeve, is tted nose or hub 5 of the assembling plate 6. This assembling plate is fastened to the facing slab 9 by means of screws 7. The screws are directed with their points towards each other and screwed in lead wool arranged in holes in the slab 9. The spacer member 4 is freely abutting and pivotally movable on the hub 5 on the assembling plate.

This results in a very solid connection and with a loading test it has been proved that a greater adherence is obtained than when applying the Well-known wedge-bolts.

The hub 5 is provided with screw-threads and in the same a tie-rod 8 is screwed which extends through the hollow anchor and is tightened with a washer 10 and a nut 11. The tension in this tie-rod 8 consequently does not act any more on the slab but exclusively on the assembly plate 6. Before applying the nut 11 and the washer 10, the end of the anchor is lled up with a mastic 12 or another moist-resistant material. Over the recess 3 and the nut 11 in the usual manner the plaster 13 is applied, whilst around the adjustable spacer 4 yand the protruding part of the anchor 2 also a moist-resistant layer 14 of material, e. g., bitumen of fiber impregnated with bitumen, is applied. The slab 9, e. g., can be provided with 'two or more, e. g. six assembling plates depending on the dimensions of the slab, said assembling plates possessing accessory anchors in the wall. lf the facing to be applied to a wall is very high for example if the fac ing extends through several stories it is preferred to provide the wall, e. g., at each story, with a rim or nose 15 on which the assembling plate bears with an angle support 16. The assembling plate is fastened to the facing slab 9 by means of screws 17 and lead wool. ln this way each oor bears o-n a separate support and not only the lowermost slabs are loaded. In the assembling plate, e. g., four holes 18 are provided, whose center-lines extend according to the rib of a pyramid. The holes 19 in the angle supports 16 are also directed towards each other. The nose 15 does not extend entirely to the slab 9, so that there is sutlicient space or drainage, whilst a good circulation in the space between the wall 1 and the slab 9 is maintained.

I claim:

l. In combination with a wall structure, a connecting device adapted to support a facing opposite the outer surface of the wall structure, said device including a plate for attachment to the facing, a hollow anchor extending through said wall structure, a tie rod connected to said plate at one end and extending through the hollow interior of said anchor beyond the extremity of said anchor at the opposite end thereof, said tie rod and said anchor being secured in position to the inner surface of the wall structure, a1 spacer member freely abutting against said plate for movement thereon andl connected to said anchor and adjustably axially with respect to the opposite end of said anchor whereby the facing is positioned a predetermined distance from the outer surface of t'he wall structure.

2. A wall structure combination as in claim l, wherein said spacer member is provided with screw threads and including cooperating screw threads on said anchor member in engagement with the screw threads on said spacer member, whereby the position of said spacer member is axially adjustable with respect to the longitudinal axis of said hollow anchor.

3. ln combination, a wall structure, a facing and a connecting device adapted to support said facing from said wall structure at a desired distance whereby a space is provided between the facing and the wall structure, which device includes an anchor member ixedly mounted at one end to the inner surface of the wall structure, the other end of said anchor member extending beyond the outer surface of said wall structure, said other end of said anchor member being provided with screw threads,

a hollow cylindrical spacer member, an assembling plate,

said plate having a screw threaded opening therethrough, one end of'said spacer member being in free contact abutment'with said plate and the opposite end having screw threads `in engagement with the screw threads on said anchor member whereby the distance between said as'- sembling plate and the outer surface of the wall structure is adjustable, means connecting said assembling plate to said facing, and tie means extending through and connected near one end to said anchor member and having screw threads at its opposite extremity engaging the threaded opening in said assembling plate whereby said assembling plate is fixedly mounted.

4. A wall structure combination as in claim 3, wherein the portion of said spacer member and said anchor member which is disposed in the space between the facing and the outer surface of the wall structure opposite thereto has a moisture resistant layer of material applied thereover.

5. A wall structure combination as in claim 4, wherein said moisture resistant layer is composed of bitumen impregnated fibre.

6. An anchor plate device for a wall structure comprising a plate including means on one face for securing a member thereto, said plate including a hubbed portion on the opposite face, an anchoring bolt having one end centrally adjustably connected to said hubbed portion, a sleeve member extending over said bolt and around said hubbedportion, said sleeve member including two axially adjustable portions, one end of one o-f said sleeve member portions being freely abutting and pivotally movable on said plate about said hubbed portion, and means on the opposite end of said bolt anchoring the other of said sleeve member portionsv to said bolt.

References Cited in the file of this patent UNITED STATESv PATENTS

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