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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SERRA COSTA FRANCISCO
Original Assignee
SERRA COSTA FRANCISCO
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Filing date
Publication date
Application filed by SERRA COSTA FRANCISCOfiledCriticalSERRA COSTA FRANCISCO
Priority to ES0022746UpriorityCriticalpatent/ES22746Y/en
Publication of ES22746UpublicationCriticalpatent/ES22746U/en
Application grantedgrantedCritical
Publication of ES22746YpublicationCriticalpatent/ES22746Y/en
"SPRING DRILL TO HOLD THE BOBBIN WITHIN THE SHUTTLE" characterized by the fact that the spring, whose expansive force retains the tube of the bobbin, is constituted by a piece of wire, more or less steely, whose ends are introduced in perforations made in the longitudinal limits of a slit, which occupies the central area of the shank of the bit, said perforations being directed obliquely with respect to the axis of the bit, so that the ends of the spring can be housed in the depth of the bit. said perforations, thus allowing the momentary reduction of its maximum curvature, when it is compressed by the inner wall of the tap tube, which is superimposed on the bit. (Machine-translation by Google Translate, not legally binding)
ES0022746U1950-03-041950-03-04
Spring loaded bit to hold the bobbin inside the looper.
ExpiredES22746Y
(en)