Abstract: A boat helm steering seat includes a multi-angle positionable seat back in which the seat back frame is pivotally connected to the frame of the seat by a pivotal connection that includes a clevis having a stem that slidably supports the vertically oriented legs of the seat back frame. A pivot control mechanism formed as laterally opposed sector plates having an arcuate slot with a center of curvature at the pivotal connection between the seat and seat back frames. Pins projecting outwardly from the seat back legs are engageable with notches formed in the sector plates extending downwardly from said arcuate slot to correspond to pre-selected pivoted positions of the seat back. Pivotal movement of the seat back is accomplished by vertically lifting the seat back to effect a sliding movement over the stems of the clevises and re-positioning the pins on the seat back legs into the notch corresponding to the position desired for the seat back.

Abstract: A rigid hand railing is disclosed having a plurality of compound indentations formed in the underside thereof to facilitate gripping thereof by a human hand. A method of manufacture of such a hand railing is also disclosed wherein a tool having a plurality of individually movable forming punches to be driven into pre-formed tooling stock is used to form the indentations in one side of the tubing stock. Each forming punch is provided with a tip portion having a compound shape formed from two perpendicular oriented and oppositely disposed arcuate shapes. The forming punches are to be alternatively or sequentially driven into the tubing stock to form the indentations.

Abstract: A boat railing is disclosed wherein the stanchions are connected to the rail by a threaded member internally threaded into both the rail and each respective stanchion. An insert adapted for connection to the threaded member can be movably inserted within the rail to provide adjustable movement about the axis of the rail. A combination of the rotative movements of each stanchion on the threaded member and about the axis of the rail enables the bases of the stanchions to be properly fitted to the surface of the boat irrespective of the slope of the surface to which the base is to be attached.