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Individual
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Priority to ES343228ApriorityCriticalpatent/ES343228A1/en
Publication of ES343228A1publicationCriticalpatent/ES343228A1/en
Improvements in the conical-straight gear cutting devices, characterized in that it is equipped with hydraulic advance and retraction to the head, for which purpose it is driven by control by the double-acting cylinder and piston and spigot, reaching the pressurized fluid cylinder at through pipes with the interposition of a regulator in which a back-off valve and a forward valve are installed. (Machine-translation by Google Translate, not legally binding)
ES343228A1967-07-201967-07-20Improvements in cutter devices of conicos-rectos gears. (Machine-translation by Google Translate, not legally binding)
ExpiredES343228A1
(en)
Hydraulic device for actuating mechanisms which include at least one plunger with combined valve of fluid deviation (Machine-translation by Google Translate, not legally binding)