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SALCEDO ALCUDE JENARO
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SALCEDO ALCUDE JENARO
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Application filed by SALCEDO ALCUDE JENAROfiledCriticalSALCEDO ALCUDE JENARO
Priority to ES0006106UpriorityCriticalpatent/ES6106Y/en
Publication of ES6106UpublicationCriticalpatent/ES6106U/en
Application grantedgrantedCritical
Publication of ES6106YpublicationCriticalpatent/ES6106Y/en
Drilling And Exploitation, And Mining Machines And Methods
(AREA)
Abstract
Mechanism of rotary bar and nut for pneumatic drilling hammers characterized in that the rotary bar is constituted by a steel shaft provided extariormente of six ribs or helical grooves of rectangular section and of a very large pitch and in which the nut is constituted by a sleeve of bronze provided internally with six grooves or channels corresponding to the ribs of the bar, with which a mechanism of great duration is obtained by having an extensive guide surface and keeping the friction reduced to a minimum. (Machine-translation by Google Translate, not legally binding)
ES0006106U1940-11-111940-11-11
Rotating Bar and Nut Mechanism for Air Drilling Hammers.
ExpiredES6106Y
(en)