COLLAPSIBLE FLOATING ICE CUTTER Russian patent published in 2025 - IPC E01D19/14 E03B3/06 

FIELD: construction.

SUBSTANCE: invention relates to construction of protective structures, mainly supports of railway and road bridges, from ice and floating objects. Collapsible floating ice cutter consists of vertical composite screw piles and guide frame. Piles are located in one row at equal distances from each other, the guide frame consists of a row of parallel posts by the number of piles, in each post there is a longitudinal through hole through which it is put on the pile. Braces and braces combine the posts into a frame. Ice cutter is equipped with float including pontoon and plow. Pontoon has the shape of a prism with two horizontal faces, three adjacent vertical faces connected at a right angle, and two adjacent symmetrical inclined faces forming an external cutting edge with rise from the edge to the centre of the pontoon, in the centre of the upper horizontal face there is a through vertical rectangular hole with dimensions corresponding to overall dimensions of the horizontal section of the guide frame. Float is put on the frame through the hole. Plow is made of two corrugated sheets, its shape and dimensions correspond to the shape and dimensions of two adjacent symmetrical inclined faces of the pontoon, at the same time the plow is placed on them so that its upper edge is located near their lower edge and is fixed on them by a collapsible joint.

EFFECT: possibility of ice breaker construction at any water level in the river, as well as reduction of its material consumption and labour intensity of the structure.

1 cl, 10 dwg