He made the first interchangeable standard for parts of lathes.
For grinding-lathes and roll grinding, see article on Lathes.
The sparks fly from the lathes, and they look like fireworks.
To this end he had built near his home several machine shops, with engines, lathes and apparatus for various kinds of work.
Andy was in his element among the lathes, vises, saws, and general tools of the workshop.
There are workshops fitted up with lathes, and a small chapel with an altar cloth, covered with skulls and cross-bones.
On some lathes these feed changes are obtained through gears which can be shifted to give different ratios.
Taper attachments, like lathes, vary some in their construction, but all operate on the same principle.
Of course it will be understood that the arrangement of a quick change-gear mechanism varies somewhat on lathes of different make.
He studied the work being done by screw-cutting machines, lathes and other equipment operated with cutting oil.