Importance

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Abstract

To reduce the cost of construction and avoid alignment problems of its component parts, a non-welded construction of mast discharge electrode, as used in an electro-precipitator, comprises a tube having holes passing transversely therethrough, cross members frictionally secured in said holes, and at least two wires extending parallel to said tube and passing through holes in said cross members, the wires being secured in the holes also by friction. The cross members may be knurled so as to be gripped in the tube holes, the latter preferably being formed by means of a punching operation. The cross members may be crimped frictionally to secure the wires. The provision of a non-welded construction particularly at the wires avoids weakening the wires because of the welding, and distortion arising from the heat of welding. The cross members may alternatively be welded to the tube if desired.

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First Claim