Index pin. A small movable member which is designed to limit the movement of the operative part of a machine.
Initial. To make a beginning with; the first of a series of acts or things.
Insulate. To place in a detached position; to separate from.
Interchangeable. One for the other.
Interval. A space between things; a void space; between two objects.
Interest. To engage the attention of; to awaken or attract attention.
Interlocking jaw. Two or more parts of a piece of mechanism in which the said parts pass each other in their motions.
Intersection. The point or line in which one line or surface cuts another.
Intervening. The portion between.
Inverted. Turned over; to put upside down.