METHOD OF CHECKING OPERATION OF TRACK LINER ON TRACK VEHICLE Russian patent published in 1998 - IPC

FIELD: machines or devices for shifting tracks. SUBSTANCE: in proposed method accuracy of measurement of rail line deflection is determined, as follows: stretched cable-chord of liner is displaced in parallel position and is fixed in this position, displacement of carriages along guides is measured and value of displacement of carriages is compared with value of displacement of cable-chord. Difference in these values manifests defects in measuring system of linear. Stretched cable-chord is fixed by means of frames secured on end trucks of linear, rollers installed on frames for engagement with cable-chord at its parallel displacement and locks located at measuring trucks of linear and consisting on rack with angle plates. EFFECT: provision of accurate checking of operation of liner measuring system. 5 dwg