Gyroscope apparatus

• US 3,251,231 A
• Filed: 07/05/1962
• Issued: 05/17/1966
• Est. Priority Date: 07/11/1961
• Status: Expired due to Term

• Current Assignee: Harold Hunt Geoffrey, Walter Hobbs Anthony Edward
• Original Assignee: Harold Hunt Geoffrey, Walter Hobbs Anthony Edward
• Inventors: HAROLD HUNT GEOFFREY, WALTER HOBBS ANTHONY EDWARD
• Application Number:
  US04/207,628
• Time in Patent Office: 1,412 Days
• US Class Current: 73/504.16
• CPC Class Codes: G01C 19/5607 using vibrating tuning forks double-ended tuning forks using planar vibrating masses suspended at opposite ends G01C19/5719

Claims

1. GYROSCOPE APPARATUS COMPRISING TWO TORSION BARS DISPOSED COAXIALLY AND SOME DISTANCE APART FROM ONE ANOTHER, A MEMBER OF RELATIVELY HIGH TORSIONAL RIGIDITY DISPOSED SYMMETRICALLY OF THE COMMON AXIS OF THE TORSION BARS AND JOINING THE INNER ENDS OF THE LATTER, A TWO TINE TUNING FORK ARRANGEMENT JOINED TO SAID MEMBER OF HIGH TORSIONAL RIGIDITY WITH ITS TINES EXTENDING IN THE GENERAL DIRECTION OF THE COMMON AXIS OF THE TORSION BARS EQUIDISTANT FROM SAID AXIS AT OPPOSITE SIDES THEREOF RESPECTIVELY, A RIGID OPEN FRAME DISPOSED SYMMETRICALLY OF THE COMMON AXIS OF THE TORSION BARS AND WHICH IS JOINED TO THE OUTER ENDS OF THE TORSION BARS, SAID FRAME CONSTITUTING THE ONE AND SAID MEMBER OF RELATIVELY HIGH TORSIONAL STABILITY TOGETHER WITH THE TUNING FORK ARRANGEMENT CONSTITUTING THE OTHER TWO OSCILLATORY BODIES WHICH ARE BALANCED AND HAVE EQUAL NATURAL FREQUENCIES OF OSCILLATION ABOUT THE COMMON AXIS OF THE TORSION BARS, THE SAME AS THE NATURAL FREQUENCY OF OSCILLATION OF THE TUNING FORK TINES, BY WHICH BAR SAID BODIES ARE COUPLED TORSIONALLY FOR OSCILLATION IN ANTIPHASE ABOUT SAID AXIS, WHEREBY DEFLECTION OF THE WHOLE ABOUT THE TORSION BAR AXIS WILL BRING ABOUT SUCH OSCILLATION OF SAID BODIES WHEN THE TUNING FORK TINES ARE ALREADY OSCILLATING AND OSCILLATION OF THE TUNING FORK TINES WHEN SAID BODIES ARE ALREADY OSCILLATING;

THE APPARATUS ALSO COMPRISING TWO SUPPORT MEMBERS JOINED RESPECTIVELY TO THE TWO TORSION BARS AT NODAL ZONES IN THE LENGTHS OF THE LATTER.