Gyroscope damping mechanism

Claim 2

A gyroscope including a case, a gimbal rotatably mounted within said case, a rotor rotatably mounted within said gimbal, a plurality of movable paddles fixed on said gimbal, a fluid reserve chamber filled with fluid within said case, a plurality of fixed magnets attached to said case and forming fixed paddles of fluid pumping chambers, said magnets creating magnetic fields, a torque coil fixed to said gimbal for interaction with the magnetic fields to apply torque to the gimbal, a closure means for said pumping chambers fixed to said case and having a port in each chamber communicating with said reserve chamber, a temperature responsive means which moves under temperature variations, a plurality of elongated plungers connected with said temperature responsive means with one plunger acting as a valve in each of the said ports.

Claim 3

A gyroscope as in claim 1 wherein the temperature-responsive means is a bellows.

Claim 4

A gyroscope as in claim 1 wherein the torque coil is positioned in a thin cylindrical enclosure which fits in the gap between the outer end of the magnets and the case and the inner ends of the magnets are connected to a central shunt.

Claim 5

A measuring instrument including a case, a movable member within said case having connected thereto a plurality of moving paddles, damping fluid within said case, means to suspend said movable member, a damping plate fixed to said case and having a plurality of ports, a plurality of fixed paddles attached to said case, said paddles each comprising a magnet, the moving paddles and fixed paddles and damping plate forming a plurality of chambers changeable in size by motion of the moving paddles and being filled with a damping fluid, a fluid reserve chamber in said case, said ports in said damping plate communicating with the reserve chamber, temperature responsive means which respond by movement to temperature variation, a plurality of plungers with a plunger within each port connected to said temperature-responsive means, and a torque coil fixed to the movable member which is adapted to move in the fields of the magnets.

Claim 6

A measuring instrument including a case, a movable member within said case having connected thereto a plurality of moving paddles, damping fluid within said case, means to suspend said movable member, a damping plate fixed to said case and having a plurality of ports, a plurality of fixed paddles attached to said case, said paddles each comprising a magnet, the moving paddles and fixed paddles and damping plate forming a plurality of chambers changeable in size by motion of the moving paddles and being filled with a damping fluid, a fluid reserve chamber in said case, said ports in said damping plate communicating with the reserve chamber, temperature responsive means which respond by movement to temperature variation, a plurality of plungers with a plunger within each port connected to said temperature-responsive means, and a torque coil fixed to the movable member which is adapted to move in the fields of the magnets.