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Individual
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Individual
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Priority to ES0249296ApriorityCriticalpatent/ES249296A3/en
Publication of ES249296A3publicationCriticalpatent/ES249296A3/en
Membrane modifier of the diameter of jewelry rings, characterized in that it consists of a support provided with a guide for a rod connected with means for its longitudinal movement, and an anvil facing one of the ends of this rod, between which end and anvil can be assembling sets of conical dies and punches, to compress the rings into decreasing sections of the die and reduce its diameter, the opposite end of the rod being terminated in a cone with which externally conical sectors are coupled and mounted so that they can not be moved axially, so that when advancing the conical stem they separate to expand a ring inserted on them. (Machine-translation by Google Translate, not legally binding)
ES0249296A1959-04-241959-04-24Mechanism modifier of the jewelry diameter (Machine-translation by Google Translate, not legally binding)
ExpiredES249296A3
(en)
Procedure and device for the manufacture of work pieces with vastages equipped with narrow hydrides. (Machine-translation by Google Translate, not legally binding)