ES77811U - Automatic tensioner of the presser bars in the sewing machines (Machine-translation by Google Translate, not legally binding)
- Google Patents
Automatic tensioner of the presser bars in the sewing machines (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Estaria y Ecenarro SA
Original Assignee
Estaria y Ecenarro SA
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Publication date
Application filed by Estaria y Ecenarro SAfiledCriticalEstaria y Ecenarro SA
Priority to ES0077811UpriorityCriticalpatent/ES77811Y/en
Publication of ES77811UpublicationCriticalpatent/ES77811U/en
Application grantedgrantedCritical
Publication of ES77811YpublicationCriticalpatent/ES77811Y/en
A new automatic tensioner of the presser bar in the sewing machines in the upper part of the frame, essentially characterized by the fact of having a threaded piece that is fixed in a hole that carries in the upper part the frame, remaining attached to it . (Machine-translation by Google Translate, not legally binding)
ES0077811U1959-12-181959-12-18
Automatic tensioner of the presser bars on sewing machines
ExpiredES77811Y
(en)
Improvements in the sewing machines for the fixing of the silver pressed to the support bar of the same (Machine-translation by Google Translate, not legally binding)
Device consisting of a set screw intended to vary the tension of the thread below in sewing machines (Machine-translation by Google Translate, not legally binding)