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Individual
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Individual
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Publication of ES212204A1publicationCriticalpatent/ES212204A1/en
Application filed by IndividualfiledCriticalIndividual
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Processing Of Stones Or Stones Resemblance Materials
(AREA)
Abstract
Improvements to the revolver drill head whose head has a top that can be placed on the shaft of a drilling machine and a lower part supporting the tool holders capable of turning at the top around an axis inclined with respect to the shaft of the drilling machine characterized in that the tool holders are fastened in their fixing holes in an easily separable way and because they can be inserted in both tool holders with embedded gear and tool holders without gear. (Machine-translation by Google Translate, not legally binding)
ES0212204A1952-11-181954-11-17Improvements in the revolver head of drilling (Machine-translation by Google Translate, not legally binding)
ExpiredES212204A1
(en)