Alcan International Limited

Pandrol Limited

Boutade Worldwide Investments Nv

Bass Plc

William Ronald Baxter

Robert Jones

Adrian M Woodward

Julian M Coles

Nicholas Lyons

Raymond Anthony Edgson

John D Wood

Roger W Clarke

Iain Wallace Anderson

Keith W Jones

Carbonated beverage container and method of manufacture therefore

A filter of the type incorporating a porous filter membrane 1. Frequently such membranes are very fragile, and the invention describes an improved way of mounting them within the housing. Attached to a perimeter portion of the membrane 1 is a thin strip 8 of flexible material such as polypropylene. The strip 8 is attached, on the one hand, to the base 4 of the filter housing by a first joint 10 and, on the other hand, to the perimeter of the membrane by a second joint 9. Between the two joints is a region of flexure which enables the membrane to float relative to the housing, thus isolating the membrane from relative movement between the membrane and the housing.

Filter membrane with flexure

An apparatus for use in measuring relative movement between two structures is described. A support (7) having bores for receiving input and output optical fibres (2, 10) is mounted on a plate (24), secured to one of the structures, at a predetermined position using alignment means (50). A filter (8) is fixed relative to the other structure so that light passing down the input fibre (2) passes through the filter (8) to the output fibre (10). The filter comprises a split field filter so that when light of two wavelengths is transmitted via the input fibre (2), the intensity of light at each wavelength transmitted through the filter (8) depends on the position of the filter relative to the support. An analogue output proportional to the displacement is provided using the transmitted intensities. The invention is particularly applicable to measuring displacement of a railway rail with respect to an underlying structure, and a method and installation for this are described.

Measuring displacement between two relatively movable structures

An inhaler device which includes a wick which draws water from a reservoir and which is in contact with a heated plate. Air is directed over the heated wick surface by means of a fan thereby to produce a stream of heated humid air. A sensor monitors the temperature of the heated air stream and a control circuit which is responsive to the sensor maintains this temperature substantially constant at a predetermined value. The heated humid air stream is available for inhalation by a patient for the treatment of certain ailments.

Inhaler device

Growing community of inventors

Cambridge, United Kingdom

William Ronald Baxter