Improvements introduced in the lifting articles of tables and structures of their parts. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the articulated lift tables and structures of their parts, characterized essentially because the elevation of the board is made by means of a set of springs that act on the side columns of the set operated by two controls and that thanks to their movements contract expose to two axes that, like a pivot, are introduced in the vertical columns to penetrate in individual holes to fix more or less height to the board and that the columns of the board that penetrate in the inferior set by one or by the des columns by a medium of pressure are fixed so that the board is ruled and are the ones that receive the mentioned pivots to graduate their height. (Machine-translation by Google Translate, not legally binding)