Solid propellant rocket motor

Claim 1

A SOLID PROPELLANT ROCKET COMPRISING, IN COMBINATION, A BODY OF SOLID PROPELLANT HAVING AN AXIAL FIRST OPENING THROUGHOUT ITS LENGTH, AN EXPANSIBLE, FLUID-TIGHT BAG SURROUNDING SAID PROPELLANT, ONE END OF SAID ROCKET BEING PROVIDED WITH AN EXHAUST NOZZLE, SAID NOZZLE BEING IN COMMUNICATION WITH SAID OPENING FOR PASSAGE OF EXHAUST GASES THEREFROM, AN ENCLOSING MEMBER SURROUNDING SAID BAG, A SECOND OPENING IN SAID BAG AND A THIRD OPENING IN SAID ENCLOSING MEMBER, THE PERIPHERIES OF THESE LATTER OPENINGS SURROUNDING SAID EXHAUST NOZZLE AND BEING SEALED GAS-TIGHT THERETO, THE INNER SURFACE OF SAID BAG AT THE END OF SAID FIRST OPENING OPPOSITE SAID NOZZLE BEING UNCOVERED IN SUCH A MANNER THAT UPON IGNITION OF SAID PROPELLANT PRESSURE OF COMBUSTION GASES DISTENDS SAID BAG AND FORMS A SPACE BETWEEN SAID BAG AND SAID PROPELLANT THEREBY PERMITTING EQUALIZATION OF COMBUSTION GAS PRESSURE ON THE INSIDE AND OUTSIDE OF SAID PROPELLANT, AND MEANS EXTENDING FROM THE EXTERIOR OF SAID ROCKET INTO SAID FIRST OPENING FOR IGNITING SAID PROPELLANT.