Improvements in the construction of machines for fresar glasses. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the construction of machines for milling hinges of spectacles, characterized in that on a static base there is a rotating vertical axis whose upper end is joined to a crosspiece provided with the corresponding turning bearing of said end in which there is attached Reductive transmission of the motor shaft. (Machine-translation by Google Translate, not legally binding)