Abstract: An explosive attachment device for mechanical connection of components, internally provided with an explosive charge, the detonation shock effect of which is strong enough for rupturing a connection forming part of the attachment device for a rapid disconnection, whereby the attachment device incorporates an attachment screw (2) and an explosive attachment element (4-14) which comprises a cylinder (4), a cover (5), and a piston (6) mounted in the cylinder (4), a space between the piston (6) and the bottom of the cylinder (4) is provided with a circular row of small holes (14), the piston (6) is provided with a rod (7) that the attachment screw (2) is mounted to, in the space between the piston and the cover (5) is arranged the explosive charge (9) with a firing device (10,11,12,13) having a delay mechanism, whereby the blasting pressure is converted to a pulling stress, which acts upon the attachment screw (2) to be pulled off without the other parts splintering.

Abstract: Explosive attachment device for mechanical connection of components, internally provided with an explosive charge, the detonation shock effect of which is strong enough for rupturing a connection forming part of the attachment device, for a rapid disconnection, whereby the attachment device incorporates an attachment screw (2), which extends through the inteconnected components (1) and an explosive attachment element (4-14) in which the attachment screw (2) is fixedly mounted, thus that the interconnected components (1) are clamped between the head of the said attachment screw (2) and the explosive attachment element (4-14), which explosive element (4-14) comprises a cylinder (4), which is closed by means of a cover (5).

Abstract: Pivot mechanism with pivotable arms for motor car doors, and of the kind, where the door can expose the entire door opening for stepping-in and stepping-out and the movement of the door outwards from the side of the car body is minimized thus that distance between door (2) and car (1) is as little as possible, whereby the mechanism has two supporting arms (3,3'), which are each pivotally supported about hinges (6, 6') provided in the car door and each at their other end are pivotable about hinges (4, 4') provided in the car body, and where all hinges (4,4',6,6') have their axes mutually in parallel and perpendicularly to the longitudinal mean plane of the car and under the same acute angle (.alpha.