A. To regulate the flow of oil from the front to the rear of the recoil-cylinders. (See Fig. 31.)
Q. What precautions should be taken where the throttling-valve is provided?
GENERAL METHOD OF CONTROLLING THE ENERGY OF RECOIL IN GUN CARRIAGES.
Fig. 31.
A. That there is a lock on the valve to prevent any one from changing the setting without authority.