添そえ板いた

noun

doubling plate (carpentry); fishplate (railways); attached board

Technical term for a reinforcing or joining plate used in woodworking and railway construction. In carpentry, it refers to a board attached to strengthen a joint; in railways, it is the metal plate connecting rail ends.

• 梁はりの継つぎ目めに添そえ板いたを当あてて補ほ強きょうする。

  Reinforce the beam joint by applying a doubling plate.

• レールの接せつ続ぞく部ぶには添そえ板いたが使つかわれている。

  Fishplates are used at the rail joints.