GB2134941A

GB2134941A - Tie for tying new wall to old structure e.g. wall

Info

Publication number: GB2134941A
Application number: GB08302964A
Authority: GB
Inventors: Donald Furr
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-02-03
Filing date: 1983-02-03
Publication date: 1984-08-22
Also published as: IE54997B1; EP0118208A1; ATE27631T1; GB8302964D0; DE3464077D1; EP0118208B1; IE840250L; GB2134941B

Abstract

A tying element 1 for tying a newly built brick or block wall to a pre-existing structure such as a wall is in the form of a generally L-shaped plate, the foot of which is bolted to the existing wall at 7, the leg of the L being interposed between two successive courses of the bricks or blocks. The tie may be provided with side flanges such as 9 and 10 which locate the tie relative to the lower course of bricks and locate the upper course of bricks relative to the tie.

Description

1 GB 2 134 941 A 1

SPECIFICATION

Tie for walls and other structures The present invention relates to a tie for tying a newly built wall or other structure made of bricks or blocks to a pre-existing structure such as a wall. 70 Conventional ties for brickwork are generally made of metal stock shaped to a figure-of-eight shape. This may be hooked to the existing wall and embedded in the mortar between courses of bricks in the new wall.

There has recently become available a new method of tying brick walls together which involves the use of a plate-like member which is nailed or bolted to the existing wall and has two side flanges which act as guides for the bricks of the new wail. Formed out of the surface of this plate are a number of vertically spaced hooks over which conventional ties can be hooked as they are embedded in the motor between courses of bricks.

The present invention seeks to provide an alternative to the above, by means of which the conventional ties can be eliminated.

Broadly, the invention provides a tie element which is in the form of a plate like element formed in the shape of a---L-. The foot of the "L" is secured to the surface of the existing structure at a suitable height so that the leg of the 'V' rests on the brickwork already built and further courses are built on top of it.

Thus according to the present invention there is provided a tie element for tying a brick or block structure to a pre-existing structure comprising a generally L-shaped plate element, the foot of the -L- having means for enabling it to be secured to a surface of the pre-existing structure so that the elongate leg of the "L" can extend in the space between bricks or blocks of successive courses in the new strudture, the leg of the -L- having at least one deending or upstanding flange at one of its side edge to abut the side face of a brick or block in the course above or below.

Preferably, the tying element has flanges for contacting the side faces of bricks above and/or below it so as to help maintain their vertical alignment. Suitably, one of the upstanding side flanges can be arranged to contact one face of the upper brick and the other side flange to contact the opposite face of the lower brick. Other possibilities are for both flanges to overly the same faces of the respective bricks or blocks, for 115 both flanges to be upstanding or depending so as to contact the same brick or block and for only one upstanding, or depending, flange to be provided.

The foot of the "L", the leg of the "L" and/or one or both flanges may be provided with through-holes or cut-outs to key plaster or mortar to them.

The invention further provides a method of tying a structure comprising successively laid courses of bricks or blocks to a pre-existing structure comprising fixing at one or more vertical intervals a tie according to any one of the preceding claims to the preexisting structure with the leg of the "L" of the tie resting on a previously laid course of the bricks or blocks and laying at least one course of bricks or blocks with one of the bricks or blocks laid on the leg of the---L-.

The invention will be further described by way of example with reference to the accompanying drawings in which:

FIGURE 1 is a perspective view of one embodiment of the present invention; and FIGURE 2 shows the embodiment of Figure 1 in use.

The wall tie 1 shown in Figure 1 is formed of a generally L-shaped plate 2 formed by folding a metal sheet at 3 so that the---fooV 4 of the "L" and "leg" are at right angles to one another. 1 The foot 4 of the "L" 2 is provided at its centre with a large hole 6 to enable it to be fied face to face with the pre- existing wall by means., for example of a bolt 7 (Figure 2).

As can be seen from Figure 2, in use the tie 1 is fixed to the existing wall at a suitable level so that the leg 5 rests on a desired row of bricks or blocks, preferably with the interposition of a thin layer of mortar. The tie 1 is provided at each side of the leg 5 of the -L- with side flanges 9 and 10, these being perpendicular to the plane of the leg 5 and equally spaced from the centre line of the tie so that the flange 10 is in face to face conta t. th a C, c - X brick in the course below the tie 1 while the inge 9 will be in contact with the side face of the next brick up. The illustrated tie is particularly suitable for use where the existing wall is stone or concrete as it can simply be bolted on.

Obviously, a number of the ties 1 may be used at vertically spaced intervals in the course of building the new wall. To assist in lining up the ties, and hence the wall, it is convenient to use a straight edge to ensure that the side edges of the ---feeV 4 of the ties are in line. To facilitate this, the flanges 9 and 10 are preferably located so that they are spaced from the plane of the foot 4 of the tie 1. Preferably also, they are displaced laterally from the side edges of the leg 5 of the tie 1.

The flanges 9 and 10 may be provided with holes such as 11 for keying of plaster, mortar and so forth and likewise the foot 4 and leg 5 of the tie may also be provided with keying holes such as 12.

As shown, the tie 1 is made from two folded rectangular strips of metal plate secured together, e.g. by spot welding, in overlying relationship. It will be appreciated that the tie could also be made from one metal plate, suitably folded and it could even be manufactured from plastics material. The foot 4 of the "L" may be provided with spacer means to maintain it in spaced parallel relationship with the existing wall. This may be done, for example, by swaging part-cylindrical projections from the foot 4. The spacers may alternatively be made by folding the corners of the foot 4 of the tie or by making three short slits in each of the side edges of the foot 4, and folding the outer two flaps, or the central flap, so formed out of the plane of the remainder of foot 4.

There are many ways in which the embodiment may be varied. For example, for use in tying the #1 1, j 4 t, 2 GB 2 134 941 A 2 outer leaf of a cavity wall, the side flange may be omitted from one side of the tie (so that it is invisible from the outside) and in those circumstances the other flange need not have the 5 plaster key holes 11.

The plate 2 is preferably of a width rather less than that of the bricks, say, for example, 50 millimeters for 75 millimeters or 100 millimeter 45 bricks. In such an embodiment, the length of the leg 5 is suitably about 100 to 150 millimeters. The inner faces of the side flanges should be spaced apart a distance just greater than the width of the brick or block; a wider version of the tie could be made to accommodate two side-by-side courses of bricks or a course of wider blocks.

The side flanges 9, 10 should be not less than about 2-2.5 cm high so as to be able to cover the mortar between successive courses of bricks 55 or blocks.

Claims

1. A tie for tying a brick or block structure to a pre-existing structure comprising a generally L-shaped plate element, the foot of the "L" having means for enabling it to be secured to a surface of the pre-existing structure so that the elongate leg of the "L" can extend in the space between bricks or blocks of successive courses and having at least one depending or upstanding flange at one of its side edges to abut the side face of a brick or block.

2. An element according to claim 1 and including a pair of such flanges on opposite side edges of the leg of the "L".

3. An element according to claim 1 or 2 wherein there are two such flanges, one upstanding and one depending from the leg of the "L".

4. An element according to claim 1, 2 or 3 wherein at least one such flange is disposed so as to be spaced along the leg of the -L- from the foot of the "L".

5. An element according to any one of the preceding claims wherein at least one such flange has holes or cut outs to key mortar or plaster thereto.

6. An element according to any one of the preceding claims wherein the leg of the -Lextends away from the foot of the---Ubeyond the at least one flange.

7. An element according to any one of the preceding claims wherein the at least one flange is spaced laterally outwardly from the side edge of the leg of the---L-.

8. An element according to any one of the preceding claims wherein the leg of the -L- is provided with keying holes for mortar.

9. A method of tying a structure comprising successively laid courses of bricks or blocks to a pre-existing structure comprising fixing at one or more vertical intervals a tie according to any one of the preceding claims to the pre-existing structure with the leg of the- --Vof the tie resting on a previously laid course of the bricks or blocks and laying at least one course of bricks or blocks with one of the bricks or blocks laid on the leg of the "L".

10. A method according to claim 11 wherein a plurality of such ties are fixed to the pre-existing structure at vertically spaced intervals.

11. A tying element constructed and arranged substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.

12. A method of tying a brick or block structure to a pre-existing structure substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.

Printed for Her Majesty's Stationery Office by the Courier Press, Leamington Spa, 1984. Published by the Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies may be obtained.

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