DEVICE FOR INSTALLATION OF OBSTACLES TO AUTOMOBILE TRANSPORT Russian patent published in 1998 - IPC

FIELD: devices interdicting an advance to automobile transport. SUBSTANCE: bed 1 is installed on the wayside, on which a folded antiautomobile obstacle is positioned and cylinder 2 with piston 3 and rod 4 is fastened; gas may be fed from source 6 to the interior formed by the bottom of cylinder 2 and piston 3. Rod 4 is connected to the front end of the antiautomobile obstacle. Cylinder 2 is placed between the middle and extreme rows of obstacle joints. The antiautomobile obstacle uses a set of crossing plates 7 hinge-joined in the points of crossing and on the ends by pivots 8 with detachable tenons 5 fitted on them and located vertically upwards relative to the plane of plates 7. Detachable tenons 5 are fitted on pivots 8 only of the middle and extreme most remote from cylinder 2 rows of the obstacle joint rows. EFFECT: enhanced reliability. 3 dwg