(under subclass 77) Structure comprising a flanged shift the flange of which enters a load bearer fitting past a restriction which partially blocks egress, the shaft being then rotatable about its axis whereby to turn the flange behind the ingress-blocking restriction whereby to lock and retain the load bearer on the freight carrier. [figure]
SEE OR SEARCH CLASS
24, Buckles, Buttons, Clasps, etc.,
287, for a twist lock joining adjacent load bearers; frequently when on a freight carrier.
294, Handling: Hand and Hoist-Line Implements,
81, for a handling device equipped with twist lock terminals to enter the corner fittings of a load bearer for the handling thereof, i.e., to load a load bearer on, or unload one from a freight carrier.
