A beautifully made and very versatile Universal Dividing Head was available for the miller. It was designed for direct or indirect dividing and for any angular pitch in degrees. For indirect dividing the worm was swung into mesh with the wheel and the appropriate dividing plate mounted on the fixture.
For direct dividing the worm was clamped in the disengaged position and movements of the spindle then controlled by a plunger engaging in a plate provided with ten notches.
Unfortunately, due to its high cost when new, second-hand examples are almost impossible to find.