GB2359829A - Plastic laths - Google Patents

Description

1 2359829 PLASLATH.

This invention relates to a building lath made of plastic.

Laths are long strips of building material, generally wood, used for a variety of purposes. mostly for providing a lattice on roofs to allow tiles to be secured. Also used for house interiors, other purposes include dry lining and battening.

used for these purposes, particularly roofs, wood has numerous disadvantages. Transportation, treatment and application of wood on site results in inefficiency, potential injury and material, therefore financial, loss.

According to the present invention there is provided a specifically manufactured lath available in three standard sizes and of three different structures. They comprise an oblong plastic extrusion with two vertical bracers, the hollow being filled with a honeycomb foam. Fig 1 An oblong plastic extrusion filled entirely with foam Fig2. An oblong plastic extrusion with a solid central brace, FigI 1 specific embodiments of the invention will now be described by way of example and referring to the accompanying drawings, (Not to scale) Figures 1, 2 & 3.

Figure i shows a view of the lath with two vertical bracers and honeycomb foam fillin& the external dimensions to vary according to standard sizes currently in use in the building trade.

Figure 2 shows a view of the lath with the foam core the external dimensions to vary according to standard sizes currently in use in the building trade.

Figure 3 shows a view of the lath with the solid central brace. The external dimensions to vary according to the standard sizes currently in use in the building trade.

The purpose of the foam fill in the laths shown in figures i and 2 is to grip nails driven through the lath to secure it to its rafters/trusses and to secure materials and tiles attached to it The purpose of the solid central core in the lath shown in Figure 3 is to grip nails dfiven through the lath to 3 secure it to its rafters/trusses and to secure materials and tiles attached to it.

Each lath shown has a line shown along the longitudinal centre line to give a guide for positioning the securing nails.

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Claims (9)

CLAIMS.

1.

A plastic building lath comprising a box section oblong case in which is incorporated two vertical bracers again of plastic, the hollows being filled with honeycomb foam.

A lath as described in claim j wherein the case is made of Plastic.

3. A lath as described in claim 1 or claim 2 wherein bracing is provided in the form of two vertical mouldings made of plastic.

4. A plastic lath as described in the above claims wherein the hollows between the casing and the vertical uprights is a honeycomb made of plastic foam.

A plastic lath as described in the above claims wherein a line is shown along the longitudinal centre to provide a guide for ffixing nails.

A plastic building lath comprising a box section oblong case with a honeycomb foam core.

-5 7. A lath as described in claiffl 6 wherein the case is made of plastic.

8. A lath as described in claiffl 6 or claiffl 7 wherein the hollow is filled with a honeycomb foam.

A plastic lath as described in the above claims wherein a line is shown along the longitudinal centre to provide a guide for fixing nails.

10. A plastic building lath comprising a box section oblong case in which is incorporated a solid plastic central core.

A lath as described in claim 10 wherein the case is made of plastic.

12. A lath as described in claim 10 or claim j j wherein a solid plastic central core is incorporated.

13. A plastic lath as described in the above claims wherein a line is shown along the longitudinal centre to provide a guide for fixing nails.

Amendments to the claims have been filed as follows 6.

CLMMS.

1. Aplastic building lath comprising a box section oblong case in which is incorporated two bracers again of plastic and generally parallel to the short sides of the oblon& the hollows being filled with honeycomb foam.

2. A lath as in claim j wherein bracing is provided in the form of two mouldings made of plastic 3. A lath as in claim 1 or claim 2, wherein the hollows between the casing and the bracers contain a honeycomb made of plastic foam.

4. A plastic lath as in any of the above claims wherein a line is shown along the longitudinal centre to provide a guide for fixing nails.

5. A plastic building lath comprising a box section oblong case with a honeycomb foam core.

6. A lath as in claim 5 wherein the case is filled with a v honeycomb made of plastic foam.

7. A plastic lath as in claim 5 Or 6 wherein a line is shown along the longitudinal centre to provide a guide for fixing nails.

8. A plastic building lath comprising a box section oblong case in which is incorporated a plastic central core wide enough to grip a nail.

9. A plastic lath as in claim 8 wherein a line is shown along the longitudinal centre to provide a guide for fixing nails.