作者: Charles E. Bryant
DOI:
关键词: Stern 、 Trailer 、 Outrigger 、 Engineering 、 Structural engineering 、 Lever
摘要: A boat centering device for a trailer, the having lever arm with contact member mounted on one end and an outrigger other, adapted to rotate towards center of trailer when is contacted by boat. The urges does not once centered. Matched pairs arms are attached at various points cooperate in bow stern