FIELD: bridge construction, particularly movable or portable bridges.
SUBSTANCE: military or emergency bridge comprises tractor, winch with ropes, ladders and towing boat connected to bridge by means of ball hinge or wedge connection. Bridge is made as sliding tubular members having rectangular cross-sections and provided with platform, ledges and air inlet and outlet valves. Each telescopic member is sealed from one side. Stop forks to be arranged in vertical position are connected to boat. The forks may be impressed in river bed with the use of hydraulic cylinders.
EFFECT: increased speed of bridge construction across river or lake.
5 dwg
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