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Priority to ES281812ApriorityCriticalpatent/ES281812A3/en
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Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices
(AREA)
Abstract
Improvements in the construction of sander machines, which essentially consist of arranging a working pulley, independent of the motor pulley and receiving the impulse by the belt itself, driven by that which is integral with the motor shaft, said working pulley being mounted at end of an arm that starts from the motor shaft, and there is a second arm, concentric with the previous one, which is capable of turning around said point, being topped by a return pulley that, by virtue of the pressure of a spring that acts against the arm, keeps the band taut. (Machine-translation by Google Translate, not legally binding)
ES281812A1962-10-231962-10-23Improvements in the construction of sanding machines (Machine-translation by Google Translate, not legally binding)
ExpiredES281812A3
(en)