ES358281A1 - Improvements in cutting devices of thread for sewing machine. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in cutting devices of thread for sewing machine. (Machine-translation by Google Translate, not legally binding)
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Virginio Rimoldi and Co SpA
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Virginio Rimoldi and Co SpA
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Application filed by Virginio Rimoldi and Co SpAfiledCriticalVirginio Rimoldi and Co SpA
Publication of ES358281A1publicationCriticalpatent/ES358281A1/en
Improvements in thread cutting devices for sewing machines, comprising a movable knife attached to an auxiliary device able to cancel the friction on the needle and hook threads and with auxiliary thread-pulling devices able to extract thread from the quills afterwards of the annulment of said friction and before the cutting of the wires, characterized in that the mobile blade (56) and the auxiliary devices (40, 46 and 54) are simultaneously driven by a piston (62, 83, 87 and 91) joined with pneumatic drive means (102) whose maneuver is obtained with a single control (100); the movable knife (56) is driven to cut during the return stroke of its piston (62) and the auxiliary devices (54) are actuated to act during the forward stroke of the respective pistons (83, 87 and 91), and the operations of annulment of the friction and of extraction of the threads (34 and 37) of the quills are obtained before the cutting operations by said blade (56). (Machine-translation by Google Translate, not legally binding)
ES358281A1968-09-201968-09-18Improvements in cutting devices of thread for sewing machine. (Machine-translation by Google Translate, not legally binding)
ExpiredES358281A1
(en)
Improvements in the construction of decorating accessories for embroidery machines with lanzadera. (Machine-translation by Google Translate, not legally binding)
Stretcher of electric-pneumatic sequence drive programmed and applicable to sewing machines. (Machine-translation by Google Translate, not legally binding)