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.)
Doronit SA
Original Assignee
Doronit SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doronit SAfiledCriticalDoronit SA
Priority to ES0291072ApriorityCriticalpatent/ES291072A3/en
Publication of ES291072A3publicationCriticalpatent/ES291072A3/en
Improvements in the apparatus for machining internal threads, of the type provided with an axially displaceable tappet and driven in rotation, essentially characterized by connecting the body of the tap holder with the guide sleeve thereof, by means of a ball bearing which is has interposed between them, whose balls are all of small dimensions except for one that is much larger, receives the moment of twisting and rests on two longitudinal grooves, formed in said shirt and body portamacho. (Machine-translation by Google Translate, not legally binding)
ES0291072A1963-08-031963-08-03Improvements in the apparatus for working interior rocks (Machine-translation by Google Translate, not legally binding)
ExpiredES291072A3
(en)
Procedure of milling on lathe and assembly of the manufacture for application of the procedure (Machine-translation by Google Translate, not legally binding)
Procedure and mechanical means for the placement, centering, blocking and machining of serial parts (Machine-translation by Google Translate, not legally binding)