Patent
Hydraulic power trim and power tilt system for a marine propulsion device
TLDR
In this paper, an outboard motor including a first extensible hydraulic cylinder means pivotally connected between a transom bracket and a swivel bracket to afford power tilting and, in response to the striking of an underwater obstacle, to afford energy absorption, was described.Abstract:
Disclosed herein is an outboard motor including a first extensible hydraulic cylinder means pivotally connected between a transom bracket and a swivel bracket to afford power tilting and, in response to the striking of an underwater obstacle, to afford energy absorption, together with a second extensible hydraulic cylinder means having an extensible part and mounted on the transom bracket with the extensible part positioned for engagement with the swivel bracket to afford trim adjustment. The disclosed outboard motor also includes connection of the first and second extensible hydraulic cylinder means in parallel relation to an electrically operated reversible hydraulic pump and further includes an electrically operated normally closed valve controlling communication between the trimming hydraulic cylinder means and the hydraulic pump independently of the communication between the tilting hydraulic cylinder means and the hydraulic pump, together with a tilt control switch operable to actuate the hydraulic pump, and a trim control switch operable to actuate the hydraulic pump and to open the normally closed valve.read more
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Patent
Outboard motor mounting arrangement
TL;DR: In this article, a marine propulsion installation consisting of a transom bracket having a mounting portion fixed to the rear of a boat transom below the upper edge thereof, and a pair of laterally spaced arms extending upwardly from the mounting portion and including respective upper ends located rearwardly of the transom, was described.
Patent
Tilting mechanism for marine propulsion device
TL;DR: In this paper, the trim condition of the outboard drive unit is adjusted in response to driving thrust and/or velocity of the boat so as to provide the optimum flow resistance under all conditions.
Patent
Tilt-lock mechanism
TL;DR: A tilt-lock mechanism for a vertically tiltable outboard stern drive on a marine vessel preferably includes a hydraulic cylinder device dampingly connecting the drive unit and the vessel as discussed by the authors, allowing the operator to selectively prevent or allow the drive units to freely tilt under various operating conditions.
Patent
Power trim-tilt system
Gaylord M. Borst,Martin H Meyer +1 more
TL;DR: In this paper, a marine propulsion device comprising a tilt hydraulic cylinder-piston assembly connected between a first member adapted to be attached to a boat and a second member connected to the first member for vertical swinging movement relative to the boat, and a trim hydraulic cylinder pistles assembly connected to first and second members.
Patent
Hydraulic system for outboard motor with sequentially operating tilt and trim means
TL;DR: In this paper, a marine propulsion device consisting of a transom bracket adapted to be connected to a boat transom, a first pivot connecting a stern bracket to the transom brackets for pivotal movement of the stern bracket relative to the boat's transom about a vertical axis, and a king pin pivotally connecting a propulsion unit including a rotatably mounted propeller to the swivel bracket about a generally vertical axis.
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Patent
Trim and tilt mechanism for outboard propulsion unit
TL;DR: In this article, a trim and tilt mechanism for an outboard motor comprising a short stroke hydraulic cylinder acting against the outboard motors at a relatively long moment arm to accomplish trimming of the motor against the resistance of the propeller thrust was presented.