Chloride Group Limited

Chloride Silent Power, Ltd.

Magnesium Elektron, Inc.

Chloride Group Public Limited Company

Gordon A Clegg

Ernest J Pearson

William Unsworth

Barry Culpin

Geoffrey Maurice Cull

David R Lauder

Phillip Jarrett

Phillip Andrew Fisher

A sealed lead acid recombination electric storage cell comprises a container containing alternating positive and negative plates separated by separators. Each separator includes reinforcing means extending over substantially its entire area and constructed to define a plurality of apertures and being surrounded by microfine glass fibre material. The plates and separators are under a compressive force and the reinforcing members are so constructed and arranged that the major proportion of the compressive force is transmitted through the reinforcing members while the major proportion of the area of the plates is contacted by the glass fibre material.

Recombination electric storage cells

A synthetic pulp separator for a lead acid battery, the separator having two or more plies and a ribbed profile the surface adapted to face the positive having a higher content of synthetic pulp than the other surface.

Battery separators

A battery formed of sodium sulphur cells has each cell coated with an intumescent paint which is heated to produce a carbonaceous foam. This foam fills an outer housing around the cells or a separate containment around each cell and serves to confine material that might leak out of any damaged cell.

Sodium sulphur batteries comprising a plurality of separate cells within

There is disclosed a method for preparing enveloped plates for batteries which comprises introducing an active material composition into the porous envelope of an enveloped plate when the envelope is assembled on the current conducting element of the plate characterized in that the active material composition is introduced into the envelope as an aqueous slurry, which has a degree of sulphation in excess of 50% and a rotating vane viscometer torque value (as herein defined) of not more than 0.2 lbs ft. at 20.degree. C, the said aqueous slurry being introduced into the envelope at a pressure of less than 5 psi until the envelope is filled with the composition, liquids issuing through the walls of the envelope, the pressure then being allowed to rise to a value above 5 psi but not in excess of 70 psi, the pressure there after being released. A variety of suitable active material compositions are described together with apparatus for carrying out the method.

Electric storage batteries

An additive for a ferrous melt to remove sulphur comprises agglomerates of a mixture of from 15 to 50% by weight of magnesium, 1 to 10% by weight of calcium fluoride and a refractory material to form a metal-permeable matrix when subjected to the temperature of a ferrous melt. The agglomerates may contain a binder and be formed into briquettes. The additive may be introduced into the melt by plunging.

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Rossendale, United Kingdom

Gordon A Clegg