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Priority to ES0297944ApriorityCriticalpatent/ES297944A1/en
Publication of ES297944A1publicationCriticalpatent/ES297944A1/en
IMPROVEMENTS IN ALTERNATIVE CAVING MACHINES, characterized in that they consist essentially of taking advantage of the power of a rototiller, to transform the rotating force into an alternative, providing for the connection a housing in which pinions with chain are housed, having a manual disconnector, in order It is also possible to obtain the required speed in the rotary movement of said walking tractor, by coupling a transmission shaft of suitable length, according to the height of the driving machine, which connects at its end with an endless shaft through the corresponding union sleeve. (Machine-translation by Google Translate, not legally binding)
ES0297944A1964-03-231964-03-23Improvements in alternative caving machines (Machine-translation by Google Translate, not legally binding)
ExpiredES297944A1
(en)
Improvements introduced in the coupling of the manceras of a mono-axis tractor, driven by hand, to the speed block. (Machine-translation by Google Translate, not legally binding)