Movement element for lathe spindle or hoist

摘要

The movement element consists of at least one nut (5) and a threaded spindle (1). The thread in the nut passes through the entire wall. When the spindle rotates, the nut moves past holders (3) and bearings (2) connected to the spindle. Alternatively, the spindle may be held by the holders and the nut may have teeth, and is driven by the engagement of these teeth with a sprocket to move back and forth over the connecting pieces. The element may also consist of at least one shell and a rod.