Abstract: Die insert lock screws are formed for threaded engagement within corresponding threaded holes formed in a retainer having a socket within which a die part insert is positioned, with a portion of each of the screw heads normally overlapping the socket and fitted within a groove in the insert. The screw heads each are provided with a circumferentially elongated notch which can be aligned with the adjacent insert surface portion and retaining socket wall portion for disengaging the screw heads from their grooves for thereby unlocking the insert. Each notch is aligned lengthwise, generally perpendicularly to the socket wall so that maximum face to face area contact is provided between the bases of the screw heads and the retainer when the screw heads are tightened against the retainer for locking the insert.

Abstract: Die insert lock screws are formed for threaded engagement within corresponding threaded holes formed in a retainer having a socket within which a die part insert is positioned, with a portion of each of the screw heads normally overlapping the socket and fitted within a groove in the insert. The screw heads each are provided with a circumferentially elongated notch which can be aligned with the adjacent insert surface portion and retaining socket wall portion for disengaging the screw heads from their grooves for thereby unlocking the insert. Each notch is aligned lengthwise, generally perpendicularly to the socket wall so that maximum face to face area contact is provided between the bases of the screw heads and the retainer when the screw heads are tightened against the retainer for locking the insert.

Abstract: A coupling device for containers adapted to retain the containers in a correct position in relation to each other and/or the walls in the holds of a ship wherein a turnable shaft having a locking head at each end thereof facing in opposite directions and being angularly displaced in relation to each other in turnable through three distinct positions by means of an operating handle to lock the device in place.

Abstract: A container lock assembly for securing varying types and quantities of containers onto a platform trailer has a body member including a base portion arrangeable engaging a rail provided on the trailer, and a stem portion extending away from the base portion. Removably attachable to the stem portion of the body member for retaining in place against the rail a container supported on the trailer is a lock pin which is also used to disengage the body member from the rail.

Abstract: A locking device arranged on an electrical unit slidably received in a receptacle of a rack, to retain the unit in the rack, said locking device comprising two stop members spaced apart in the direction of insertion of the electrical unit and displaceable relative to one another by means of a manually actuatable drive. The rearmost one of said stop members, considered in the direction of removal of the electrical unit from the rack, being adjustable by means of an adjusting member between an insertion position within the free cross-section of the rack receptacle and a locking position in which a portion thereof extends beyond the free cross-section of the receptacle to engage a rack member of the rack.

Abstract: Disclosed is an improvement in a coupling mechanism for uniting two plates comprising a coupling member and associated apertures in the plates wherein the coupling member comprises a head portion and two legs integrally connected to the head portion and each having a stepped engaging portion on the periphery thereof, whereby when the two legs are inserted in the apertures of the two plates and rotated by 90.degree., the stepped engaging portions catch some selected parts of the circumference edge of the aperture of one of the plates, and clamp these plates in cooperation with the head portion, which is pushed against the other plate. The coupling mechanism according to this invention further comprises means to regulate the rotation angle of the shank of the coupling member at 90.degree., thus preventing the shank of the coupling member from overrunning the stop position at which the stepped portions catch selected parts of the circumference edge of the aperture of one of the plates to be coupled.