Accession Number : ADD005484

Title :   Explosively-Separated Tongue and Groove Joint.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Jewett,Harvey R

Report Date : 15 Aug 1978

Pagination or Media Count : 7

Abstract : A pair of structural members are coupled by a tongue and groove joint having a groove half and a tongue half. To secure the joint, bolts extend transversely through aligned bolt holes and, on each side of the tongue half holes, are so-called 'collapsing' slots. A linear explosive is placed in the base of the groove near the inner end of the tongue. The metal thickness of the tongue lying between the explosive and its holes and slots forms a 'web' which, upon detonation, collapses into the slots. The collapse stretches the web portion adjacent the bolt holes sufficiently to produce a rupture or opening through which the bolts pass to permit separation of the structural members. The separation also is responsive to the explosive force so that the members are accelerated apart in opposite directions. (Author)

Descriptors :   *Patents, *Release mechanisms, Joints, Explosive actuators, Guided missile components, Separation

Subject Categories : Couplers, Fasteners, and Joints
      Guided Missiles
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE