Transportable gyroscopic and power equipment

Claim 1

APPARATUS FOR USE IN INITIALLY ALIGNING THE DIRECTION DEFINED BY A NAVIGATION REFERENCE SYSTEM OF A NAVIGABLE CRAFT IN ACCORDANCE WITH A PREDETERMINED REFERENCE DIRECTION COMPRISING, (A) A FIRST ALIGNING PAD REMOTE FROM SAID CRAFT FOR DEFINGING SAID PREDETERMINED REFERENCE DIRECTION, (B) A SECOND ALIGNING PAD FIXEDLY MOUNTED ON SAID CRAFT FOR DEFINING A FURTHER DIRECTION RELATIVE TO AN AXIS OF SAID CRAFT, (C) A GYROSCOPE DEVICE HAVING MEANS FOR DEFINING AN INERTIAL REFERENCE DIRECTION AND HAVING A REFERENCE SURFACE ADAPTED FOR DETACHABLE MOUNTING ON SAID ALIGNING PADS, (D) MEANS ADAPTED FOR OPERATION WHEN SAID GYROSCOPIC DEVICE ID MOUNTED ON SAID FIRST ALIGNING PAD FOR SLAVING SAID INERTIAL REFERENCE DIRECTION DEFINING MEANS TO THE REFERENCE DIRECTION DEFINED BY SAID DEFINING MEANS, (E) INTEGRATING MEANS HAVING AN INPUT RESPONSIVE TO ANY LONG TERM DEVIATION BETWEEN SAID FIRST REFERENCE DIRECTION AND SAID INERTIAL DIRECTION AND PROVIDING AN OUTPUT FOR PROGRESSING SAID GYSCROPIC DEVICE IN A DIRECTION EQUAL AND OPPOSITE TO SAID DEVIATION WHEREBY SAID INERTIAL DIRECTION IS MAINTAINED SUBSTANTIALLY COINCIDENT WITH SAID PREDETERMINED REFERENCE DIRECTION, (F) MEANS FOR SEVERING THE INPUT OT SAID INTEGRATING MEANS AND FOR MAINTAINING THE PRECESSION OF SAID GYROSCOPIC DEVICE IN ACCORDANCE WITH THE OUTPUT THEREOF, AND (G) MEANS ADAPTED FOR OPERATION WHEN SAID GYROSCOPIC DEVICE IS MOUNTED ON SAID SECOND PAD FOR PROVIDING A SLAVING REFERENCE FOR SAID CRAFT NAVIGATION REFERENCE SYSTEM PROPORTIONAL TO THE ANGLE BETWEEN THE DIRECTION DEFINED BY SAID INERTIAL DIRECTION DEFINING MEANS AND THE FURTHER REFERENCE DIRECTION DEFINED BY SAID SECOND PAD WHEREBY THE DIRECTION DEFINED BY SAID CRAFT NAVIGATION SYSTEM AMY BE ALIGNED WITH SAID PREDETERMINED REFERENCE DIRECTION REGARDLESS OF THE DIRECTION OF SAID CRAFT AXIS RELATIVE TO SAID PREDETERMINED REFERENCE DIRECTION.