ES438281A1 - Improvements in circular circular and circular websites. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in circular warp and weft weaving machines, characterized essentially by having a tubular warp fixed around an axis and so that its cross section extends over an arc greater than a closed contour and having two mutually opposite ends, and in the weaving area is crossed by a series of radial healds, connected with at least two different groups of warp threads and driven through motion transmissions by at least one radial cam, arranged concentrically therewith and driven in rotation around the axis of said warp, so that said heddles are able to open at least one shed between two groups of threads and that extends over an angular fraction of the warp development, and to invert said shed in a phase of further operation, within which pumping fixed radial plates are inserted forming an annular guide for introducing devices free wefts and entering and leaving the same in correspondence of the ends of the indicated arc, and radial plates, movable alternately in the direction of their length, connected with a radial cam arranged concentrically with the warp and driven in rotation around the axis thereof, synchronously with the control cam of the heddles, and whose ends closest to the weaving area cooperate with a radially inclined cam profile, formed in the corresponding position of the frame introducing member, so that the latter is driven throughout the development of the warp depending on the displacement towards the axis of the movable plates. (Machine-translation by Google Translate, not legally binding)