Aktiebolaget Tudor

Erik Westberg

Erik G Sundberg

Stiffening material is applied to the end of an elongate battery electrode sheath by spreading the material onto a disc in the form of an apertured circle. The circle is continually rotated in a horizontal plane. The battery sheaths are oriented vertically and are displaced so that the lower end of each sheath is passed into the material at one location thereof such that the material approaches one side of the sheath. The sheath is then passed into the material at another location thereof spaced from the first location so that material approaches another side of the sheath.

Methods for applying material to the end of elongate objects

Sheaths for covering battery electrodes are produced by introducing inner and outer layers of sheath material onto a plurality of adjacent mandrels. As the layers pass along connector sections of the mandrels, they are connected together to form interconnected tubes. The connector sections have an elongate cross-sectional configuration to facilitate such connection. Thereafter, the layers pass along reshaping sections of the mandrels which have a cross-sectional configuration that is different from that of the connector sections and which corresponds to the desired final shape of the tubes.

Methods and apparatus for producing sheaths for battery electrodes

A sheath for tubular storage battery electrodes has an inner layer of an inert fibrous material and an outer layer of thermoplastic material in the form of a net, perforated foil, or the like. The two layers are mechanically joined by heating the fibrous layer to a temperature sufficient to soften the adjacent surface of the thermoplastic material and cause a portion of the fibrous layer to be embedded in the surface of the thermoplastic layer.

Growing community of inventors

Lidingo, Sweden

Erik Westberg