Compressed air rocket propelling device

Claim 1

IN A TOY ROCKET, THE COMBINATION OF A BASE TUBE, A FIRING TUBE TELESCOPING WITHIN SAID BASE TUBE IN SUBSTANTIALLY AIR-TIGHT SLIDING ENGAGEMENT, AND A PROJECTILE BODY REMOVABLY ATTACHED OVER PROJECTILE END OF SAID FIRING TUBE IN SUBSTANTIALLY AIR-TIGHT SLIDING ENGAGEMENT; SAID BASE TUBE COMPRISING A RELATIVELY LONG CYLINDRICAL, HOLLOW BODY PROVIDING BASE END AND OPERATING END SAID BASE END CLOSED IN AN AIR-TIGHT END CAP AND SAID OPERATING END BEING OPEN TO RECEIVE FIRING TUBE; SAID FIRING TUBE COMPRISING A RELATIVELY LONG CYLINDRICAL, HOLLOW BODY OF DIAMETER TO SLIDE WITHIN SAID BASE TUBE, PROVIDING OPEN BASE END AND OPEN PROJECTILE END; SAID PROJECTILE BODY COMPRISING A HOLLOW CYLINDRICAL BODY OF DIAMETER TO SLIDE OVER SAID OPEN PROJECTILE END OF FIRING TUBE PROVIDING OPEN FIRING TUBE END AND FRONT END CLOSED IN A SUBSTANTIALLY AIR-TIGHT CIRCUMFERENTIAL JOINT BY A LIGHT WEIGHT HEAD; A FINNED CYLINDRICAL COLLAR ENCIRCLING SAID PROJECTILE BODY AND CEMENTED THERETO NEAR SAID OPEN END SUPPORTING A PLURALITY OF CIRCUMFERENTIALLY SPACED FINS PROJECTING PERPENDICULARLY FROM SAID COLLAR; A CYLINDRICAL CAM COLLAR ENCIRCLING SAID BASE TUBE AND CEMENTED THERETO AT OPERATING END SUPPORTING A PLURALITY OF OPERATING CAMS IN SPACED RELATION ABOUT THE PERIPHERY OF SAID COLLAR; OPERATING MEANS DETACHABLY ENGAGING A PLURALITY OF PERIPHERALLY SPACED MEANS ON SAID FINNED COLLAR FOR MANUAL RETRACTION OF SAID FIRING TUBE INTO TELESCOPING RELATION WITH SAID BASE TUBE, SAID OPERATING MEANS CONTACTING SAID OPERATING CAMS AFTER SUBSTANTIAL TELESCOPING MOVEMENT OF SAID FIRING TUBE WITHIN SAID BASE TUBE TO DISENGAGE SAID OPERATING MEANS FROM SAID FINNED COLLAR WHEREBY A VOLUME OF AIR MAY BE COMPRESSED WITHIN SAID TUBES AND THE ENERGY CONTAINED BY SAID COMPRESSED AIR MAY BE UTILIZED TO PROPEL SAID PROJECTILE.