FIELD: physics.
SUBSTANCE: proposed device comprises laser range-finder and target fixed in brackets mounted on opposite gantry rails. "П"-like brackets have their vertical flanges spaced apart for more than rail head width to make 70…160 mm. Every bracket is provided with position retainer made up of L-like clamp to be pressed against rail head and fitted into opening arranged along horizontal flange, and bolt fitted into one of said flange to interact with vertical wall of said clamp. Rail head size scale is applied on bracket horizontal flange. Laser range-finder incorporates target sighting device secured on horizontal flange of one of said brackets. Target is secured vertically on flange of the other bracket. Device to guide laser range-finder to target and target bracket are provided with levels in two mutually perpendicular directions along and across rails. Linear sizes scale is applied on target in vertical direction.
EFFECT: higher accuracy of measurements and safety.
4 cl, 6 dwg
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