Spindle

The screw to which the bar of the press is affixed, and which produces the pressure on the platen.

The upper part of the spindle is round, on which a screw is cut, that works in the nut fixed in the head; the next part lower is square, with a square hole in it to receive the end of the bar; the lower part is round and tapering and goes through the hose, to which it is attached by the garter, the spindle having a groove cut round it, into which the two semicircular ends of the garter enter and encircle it, by which contrivance the platen is raised on the return of the bar; the lowest end of the spindle is called the toe, which is hardened steel, and works in the stud of the platen.