From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Description of a reinforced fabric material for use in ceilings and walls, detailing its properties and mechanical strength.
| Identifier | ExFiles\Box 144\2\ scan0060 | |
| Date | 22th April 1941 guessed | |
| Ceilings. It is fireproof. Not affected by water. Non-corrosive. Light - 2 ply weighing only 4½-ozs. per sq.foot. One ply would suffice for ceiling - thickness approximately 1/32nd of an inch; weight 3-ozs. per sq.foot. Can be supplied polished to a glass finish - white coloured or tinted, or with a stove enamel surface. Can be used for heating without alteration. A fitting replacement for ordinary ceiling boards. Last and foremost it is reinforced. Walls. Partitions can be constructed from it. It can be used for dado panels. Any or all sections can be used for heating. Finish and colour as for ceilings. Every section reinforced and wired for heating. The great mechanical strength of the Fabric is evidenced by the following - Two ply sheets, made up with wires warp and weft, the wires woven in the fabric contain 12 wires to each inch of the fabric - and to each layer - 24 wires per inch in the 2 layers. These high tensile steel wires have a guaranteed breaking strain of 130 tons per sq. inch. The thickness of the finished 2 ply fabric (impregnated, laminated and pressed) is less than 1/16" and weighs less than 5-ozs. to the sq.foot. Single ply sheets with wire reinforcements in both warp and weft would have considerably more than half the strength of 2 ply sheets - and would be but a little more than half the thickness of the 2 ply fabric. .5. | ||