B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
140/14
B07B 1/46 (2006.01) B21F 27/18 (2006.01)
Patent
CA 1279235
ABSTRACT OF DISCLOSURE A new and advantageous screen structure which is capable of more applications than known screen structures comprises curved rod or wires or other elongate (filamentary) material for which screening spacings are at progressively increasing radial distance from an axis up to a boundary rod or wire, also curved about said axis. Not only can the proposed structure be used flat, but it can also be formed into three-dimensional screens including conical and helical structures. One method of making such a screen for example comprises using a grooved table and feeding a plurality of wires into the grooves and means serving to import requisite relative movement between such table and such rod or wire. Means is provided for securing radial supports to the screen elements made on the table, conveniently by welding. Another apparatus for making the screens comprises a plurality of spaced grooved radial members and corresponding spaced radial location members for locating wires in the grooves.
511193
Gowan Intellectual Property
Qualastic International Limited
LandOfFree
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