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Individual
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Individual
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Priority to ES0062453UpriorityCriticalpatent/ES62453Y/en
Publication of ES62453UpublicationCriticalpatent/ES62453U/en
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Publication of ES62453YpublicationCriticalpatent/ES62453Y/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Abstract
Sheet metal drilling device which is essentially characterized as consisting of a set of cutting matrix and countermatrix of appropriate hard material, making its approximation and coupling determinants of the bore by means of a manually operable screw from one end, whose screw is housed for this purpose in a smooth hole existing in the center of the countermatrix and inserted at the opposite end into a hole with a thread axially made in the matrix, which is introduced after crossing the sheet through the chosen place in which a drill has previously been made of smaller diameter. (Machine-translation by Google Translate, not legally binding)
ES0062453U1957-10-291957-10-29
Sheet Metal Drilling Device
ExpiredES62453Y
(en)
A procedure for the protection and reinforcement of tubes or canillas, employed in spin or for other uses (Machine-translation by Google Translate, not legally binding)