Abstract: A twistlock for locating and locking a freight container on a container-supporting deck of a vehicle. The twistlock is designed to be welded-in to its operating location on the vehicle deck. The twistlock has a register and a mounting boss which are separate components, such that the mounting boss can be welded-in to a pre-cut hole in the deck as an initially separate component, thus obviating welding-heat-induced distortion of the twistlock. The mounting boss is axially self-aligning in the deck, and the remaining components of the twist lock drop into place.

Abstract: A locking pin assembly for locking an end of a cargo container onto the container-carrying platform of a transport vehicle. The assembly has a retractable locking pin movable between a fully rearwardly extended container-locking position and a fully forwardly retracted container-freeing position. The locking pin is movable between these two positions by manually swinging a pivoted operating lever which extends through a longitudinally elongated U-shaped slot in a rigidly immovable latching gate. A bias spring urges the operating lever into the ends of the U-shaped slot to latch the lever and hence latch the locking pin in the absence of manual pressure on the lever. De-latching of the operating lever and locking pin is accomplished by a single-handed operation involving merely pressing down on the lever, with de-latching being automatic on releasing the lever.