AGRICULTURAL BRIDGE Russian patent published in 1995 - IPC

FIELD: agricultural mechanical engineering. SUBSTANCE: agricultural bridge has laser emitter 1, mounted on edge self-propelled car 2, emission 17 of which is directed perpendicularly to self-propelled car movement direction. In the case, first span of multi-support girder 3 is fastened to the rest spans of girder and to edge self-propelled car 2 by telescopic joints 4 with connecting hinges. EFFECT: agricultural bridge significantly decreases expenses, spent for engineering equipment of arable land and does not require usage of supporting reference points. 6 dwg