GEAR MEASURING THICKNESS OF WALL OF HOLLOW CYLINDRICAL PART Russian patent published in 2003 - IPC

FIELD: measurement technology. SUBSTANCE: gear has base 1 carrying mobile basing unit 8 with linear-motion roller bearing 9 and bracket 3 on which axle 4 rotary measurement head 5 with base rest 6 anchored on it and indicator 7 are installed. Gear is equipped with rotary-pressure unit located on mobile basing unit 8 and coming in the form of prop 10 carrying spring-loaded rocker 11 in which revolving shaft 12 is placed. One end of shaft has pressure roller 13 and its other end carries rotation handle 14. Rotation handle 14 rotates shaft 12 which pivots around tested part with the aid of pressure roller. Thickness and thickness difference of walls of part are measured over entire circumference. EFFECT: raised measurement authenticity. 1 dwg