What is the meaning of Dispart?

To part, separate.

To divide, divide up, distribute.

The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance.

A piece of metal placed on the muzzle, or near the trunnions, on the top of a piece of ordnance, to make the line of sight parallel to the axis of the bore.

To furnish with a dispart sight.

To make allowance for the dispart in (a gun), when taking aim.

Source: wiktionary.org