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Priority to ES0255298ApriorityCriticalpatent/ES255298A3/en
Publication of ES255298A3publicationCriticalpatent/ES255298A3/en
Improvements introduced in industrial sewing machines, characterized in that the lower looper drive device is constituted by two flat eccentrics arranged on the main drive shaft of the machine, which have mounted connecting rods that act through the machine. articulated systems, on the own anchor, to which they print a cyclic movement in which the alternate longitudinal displacements alternate with the transverse ones. (Machine-translation by Google Translate, not legally binding)
ES0255298A1960-01-261960-01-26Improved improvements in industrial sewing machines (Machine-translation by Google Translate, not legally binding)
ExpiredES255298A3
(en)