Rocket extraction device
AssigneeThe United States of America as represented by the Secretary of the Army
InventorDonald L. Martin
Life of this patent
Estimating the term…
Abstract
A hand-held and hand-operated gripping device for extracting live rockets from rocket launch tubes is disclosed. The device has the ability to engage and grip an extraction bar extending across the exhaust end of a rocket motor and extract the rocket from the launch tube by a straight pulling action along the axis of the rocket. Jaws of the rocket extracting device are pivotally held on a frame member and are resiliently biased open. The jaws are closed by movement of a separate elongated finger grip bar toward a parallel bar of the frame member while the finger grip bar is in engagement with convergent cam faces of the pivoted jaws. The finger grip bar is captively held in free-floating relationship to the jaws and frame member.
Claims14
A rocket extraction device adapted to be held and operated by one hand of a user comprising a supporting frame including a crossbar, spaced coaxial shafts on said frame and being in spaced parallel relationship to the crossbar, pairs of opposing jaws pivotally held on said shafts with the pairs in spaced relationship, extension arms on the jaws and projecting therefrom toward said crossbar and having opposing cam faces and support shoulders adjacent to the cam faces, a finger grip bar movably disposed between said extension arms and being engageable with said cam faces and support shoulders and having end faces in opposing relationship to parts of said frame, and resilient means biasing said jaws toward separated positions, movement of the finger grip bar toward said crossbar causing closing of said jaws by camming action of the finger grip bar on said cam faces.
A hand-held rocket extraction device adapted to be engageable with an extraction bar on the exhaust end of a rocket disposed within a rocket launch tube, said device comprising a U-frame adapted to serve as a handle, a pair of spaced coaxial shafts on opposite sides of the U-frame and projecting inwardly from such sides, pairs of opposing jaws having longitudinal extension arms pivotally held on said shafts with the pairs of jaws in spaced relationship, said jaw extension arms having convergent cam faces and support shoulders adjacent to said cam faces and being generally perpendicular thereto, a finger grip bar having cylindrical end portions which are engaged movably in spaces defined by said cam faces and support shoulders, the opposite end faces of the finger grip bar being disposed near the interior faces of the sides of said U-frame and in opposing relationship therewith, means biasing the opposing jaws of said pairs toward separated positions, and finger grip bar guidance and jaw pair centering means on said U-frame.
A rocket extraction device comprising a U-frame including a crossbar and spaced side support arms, coaxial shafts on the support arm, pivoted jaw pairs on said shafts and being disposed interiorly of the support arms and having cam faces formed thereon between said support arms, said jaws having rocket extraction bar gripping portions extending beyond corresponding sides of said shafts and beyond the ends of the support arms defining an open side of said U-frame, a separate, elongated finger grip bar disposed movably within said U-frame and extending between the support arms thereof in parallel relationship to said crossbar and being engageable with said cam faces, and spring means connected with the jaws of said pairs and biasing them toward separated positions.
Dependencies are inferred from the claim text.