Pen′du-lum-hausse.
(Ordnance.) A species of breech-sight, having a brass bulb at the lower end which keeps it in a vertical position when the carriage is on uneven ground. It is made of sheet-brass, and has a slit down its center in which works a slider. It is graduated to degrees and quarters, and for giving the desired elevation a notch in the slider is brought into line with the top of the front sight by lowering or raising the breech of the gun. The hausse has two side branches or trunnions, which rest in the hausse-seat. The seat is made of steel, and is permanently attached to the piece by means of screws.