Process for making propellant charges

Claim 1

A METHOD FOR THE PRODUCTON OF A GAS-PRODUCING DOUBLE-BASE PROPELLANT CHARGE FOR USE IN ROCKET MOTORS, ENGINE-STARTERS AND THE LIKE USING A CYLINDRICAL SHEATH OF COMBUSTION INHIBITINA MATERIAL CONSISTING AT LEAST IN PART OF A BASE-CUP HAVING UPSTANDING WALLS AROUND ITS PERIPHERY DEFINING A HOLLOW SPACE THEREIN, SAID SHEATH BEING OPEN AT ONE END THEREOF FOR IGNITING SAID CHARGE AND SAID SHEATH HAVING AN ORIFICE IN THE OTHER BASE-CUP END THEREOF, COMPRISING THE STEPS OF IANTRODUCING INTO THE SHEATH A GRANULAR MASS COMPRISING ONE COMPONENT PART OF THE SAID PROPELLANT, INTRODUCING A CASTING LIQUID COMPRISING THE OTHER COMPONENT PART OF SAID PROPELLANT THROUGH SAID ORIFICE BENEATH THE PROPELLANT GRANULES AND FORCING THE CASTING LIQUID TO RISE BETWEEN THE PROPELLANT GRANULES, THEREBY DISPLACING THE AIR REMAINING BETWEEN THE PROPELLANT GRANULES AS THE CASTING LIQUID RISES, SAID CASTING LIQUID CONTAINING A LIQUID NITRIC ESTER, FOLLOWED BY CURING THE ENTIRE MASS UNDER POSITIVE PRESSURE SUCH THAT THE PROPELLANT MASS IS ENCLOSED IN AN DBONDED TO THE COMBUSTION INHIBITING MATERIAL OF THE BASE-CUP AND UPSTANDING WALLS OF THE SHEATH TO PRODUCE A HARD AND SOLID CHARGE ADAPTED TO BE IGNITED AT SAID ONE IGNITING END AND TO BURN PROGRESSIVELY TO THE OTHER BASE-CUP THEREOF.

Claim 2

A METHOD FOR THE PRODUCTON OF A GAS-PRODUCING DOUBLE-BASE PROPELLANT CHARGE FOR USE IN ROCKET MOTORS, ENGINE-STARTERS AND THE LIKE USING A CYLINDRICAL SHEATH OF COMBUSTION INHIBITINA MATERIAL CONSISTING AT LEAST IN PART OF A BASE-CUP HAVING UPSTANDING WALLS AROUND ITS PERIPHERY DEFINING A HOLLOW SPACE THEREIN, SAID SHEATH BEING OPEN AT ONE END THEREOF FOR IGNITING SAID CHARGE AND SAID SHEATH HAVING AN ORIFICE IN THE OTHER BASE-CUP END THEREOF, COMPRISING THE STEPS OF IANTRODUCING INTO THE SHEATH A GRANULAR MASS COMPRISING ONE COMPONENT PART OF THE SAID PROPELLANT, INTRODUCING A CASTING LIQUID COMPRISING THE OTHER COMPONENT PART OF SAID PROPELLANT THROUGH SAID ORIFICE BENEATH THE PROPELLANT GRANULES AND FORCING THE CASTING LIQUID TO RISE BETWEEN THE PROPELLANT GRANULES, THEREBY DISPLACING THE AIR REMAINING BETWEEN THE PROPELLANT GRANULES AS THE CASTING LIQUID RISES, SAID CASTING LIQUID CONTAINING A LIQUID NITRIC ESTER, FOLLOWED BY CURING THE ENTIRE MASS UNDER POSITIVE PRESSURE SUCH THAT THE PROPELLANT MASS IS ENCLOSED IN AN DBONDED TO THE COMBUSTION INHIBITING MATERIAL OF THE BASE-CUP AND UPSTANDING WALLS OF THE SHEATH TO PRODUCE A HARD AND SOLID CHARGE ADAPTED TO BE IGNITED AT SAID ONE IGNITING END AND TO BURN PROGRESSIVELY TO THE OTHER BASE-CUP THEREOF.