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David J Edwards

Robert Edward Matthews

Geoffrey Philip Gray

Christopher P Freeman

Philip J Evans

Richard S Thom

Clifford A Smith

Security articles

In a method for determining the dry matter content and nutritional value of moist vegetable material, such as silage, liquor is expressed from a sample of known quantity by applying thereto a reproducible pressure regime, the quantity of expressed liquor is measured, and the expressed liquor is analyzed for parameters, such as pH, ammonia, lactic acid, free sugar and alpha-amino nitrogen, from which the nutritional value can be estimated by regression. The nutritional value of silage can be expressed in terms of its fermentability in the rumen. The invention includes a portable facility for use in `on farm` analysis of silage to determine its nutritional value.

Method for determining the nutritional value of vegetable materials

This invention is concerned with security paper for bank notes, cheques and like documents in a security strip of enhanced security which is more difficult to counterfeit than the present bank notes containing window threads. Security papers according to the invention comprise at least one elongated security element which security element is partially embedded within said paper with portions thereof being exposed at the surface of the paper at spaced intervals along the length of the security element at windows in the paper, said security element being visually detectable in transmitted light and being visible in the windows of the paper in reflected light, wherein the said security element comprises a plurality of layers including a support layer and metallic regions such that when the exposed portions of the security element are viewed in the reflected light there is visible to the unaided eye in each window at least two metallic areas which form repeating patterns along the length of the element, with the said metallic areas being of different color.

Security paper with metallic patterned elongated security element

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Overton, United Kingdom

David J Edwards