US Patent 7147525 Hydraulic steering apparatus for an outboard engine

A hydraulic steering apparatus 1 has a substantially bow-shaped frame 2, which includes a pair of end portions 2a bent forward. A piston rod 3 is supported by and between the end portions 2a. A hydraulic cylinder 5 is supported by the piston rod 3 slidably along it. The frame 2 also includes a middle portion 2A, which has bolt holes 2B cut through it. Bolts 11 extend through the bolt holes 2B and engage with the front end of the swivel bracket 41 of an outboard engine 40 to fix the frame 2 to the bracket. The cylinder 5 is linked to the front end of the steering lever 46 of the engine 40 by a steering link 7.