Angular inclination indicator for moving members

Claim 1

AN INDICATOR DEVICE MOUNTABLE ON A MEMBER FOR DETERMINING THE ANGULAR POSITION OF A MEMBER WHICH MAY BE MOVING AND CHANGING ITS ANGULAR DISPOSITION AT THE TIME TO PROVIDE AN INDICATION OF THE ANGULAR POSITION OF THE MEMBER AT A POINT IN TIME, ACTION, AND MOVEMENT SUBJECT TO ANY EFFECTIVE ACCELERATION AND CENTRIFUGAL FORCES, COMPRISING A CASE MOUNTABLE ON A MEMBER, A DIAL IN SAID CASE HAVING ANGULAR MARKINGS, AN INDICATOR CENTRALLY PIVOTALLY MOUNTED ON SAID DIAL RELATIVE TO SAID MARKINGS HAVING A PIVOTED CENTRAL END AND AN EXTENDING INDICATING END; SAID INDICATOR HAVING A FERROUS PORTION AT LEAST ADJACENT ITS SAID EXTENDING INDICATING END; AN ANNULAR FERROUS SLEEVE ADJACENT SAID DIAL AND INDICATOR INSIDE SAID CASE, AN ANNULAR INTERNALLY NOTCHED HOLDER MEMBER ADJACENT SAID SLEEVE, A MAGNET LOCATED INSIDE OF SAID SLEEVE BETWEEN SAID HOLDER MEMBER AND SAID DIAL, A WALL IN SAID CASE SPACED FROM SAID HOLDER MEMBER AND SLEEVE ON THE SIDE OF SAID SLEEVE WHICH IS OPPOSITE FROM SAID DIAL HAVING A CENTRAL APERTURE, A STEM ON SAID MAGNET LEADING PAST SAID NOTCHED HOLDER MEMBER THROUGH SAID APERTURE OF SAID WALL, A HEAD ON SAID STEM ADJACENT SAID WALL, SAID HEAD BEING LARGER THAN SAID APERTURE IN SAID WALL, A SLIDE IN SAID CASE ADJACENT SAID WALL AND HEAD, MEANS IN SAID CASE MOVABLY SUPPORTING SAID SLIDE, A SPRING RESILIENTLY BIASING SAID SLIDE AWAY FROM SAID HEAD ON SAID STEM, AN ARM PIVOTED ON SAID CASE ADJACENT SAID SLIDE, RESILIENT MEANS NORMALLY HOLDING SAID ARM AWAY FROM SAID SLIDE, AND