Abstract: An aircraft cargo carrier restraint device that is constructed so that it cannot be accidentally moved from extended, pallet locking position to a retracted position. The device embodies locking pawls of unique design that positively preclude movement of the pawls into a retracted position unless a specific sequence of operation is followed. One of the locking pawls includes a locking notch and the other of the locking pawls includes a locking protuberance, which is closely received within the locking notch so as to positively prevent accidental downward movement of the pawls into their lowered position.

Abstract: An improved braking roller apparatus for preventing unintended movement of cargo containers within cargo compartments of the character found in cargo transport vehicles such as cargo aircraft. The improved braking roller apparatus includes highly novel, internal friction producing elements that smoothly and effectively resist rotation of a pair of cooperating rotors which are driven by a uniquely configured ULD engaging outer housing. The rotors and the cooperating friction elements in turn cooperate with a one way roller clutch assembly in a manner to positively impede rotation of the cargo container engaging outer housing in a first direction which allowing its free, unrestricted rotation in an opposite direction.