Abstract: Horizontally disposed fins are located in a plane in alignment with a raised trolling plate with fin trailing edges proximate the leading edge of the raised trolling plate. A mounting bracket of a trolling plate assembly serves to mount the fins superjacent the anti-cavitation plate of a propulsion unit.

Abstract: A trolling plate having first and second plate members joined in hinged fashion with one of the trolling plates moveable to a trailed inclined position in the presence of boat propulsion system backwash associated with speeds in excess of trolling speeds. Spring components reposition the trailing inclined plate member upon resumption of reduced boat speed and reduced backwash forces. Trailing of the plate member during high backwash force avoids trolling plate damage and, in some trolling plate assemblies avoids undesired unlatching of the trolling plate from an operative vertical position.

Abstract: A trolling plate assembly includes a plate structure pivotally carried on a supporting bracket on a propulsion unit. The plate structure is spring biased toward a downward or deployed position. Ears on the plate structure provide tracks on which followers are entrained with the followers seating in recesses at the end of each track to retain the plate structure horizontal. The rollers are biased into track and into recess engagement. A control permits the user to disengage the rollers from the recesses to allow downward deployment of the plate structure. A modified trolling plate includes a pair of adjustably biased rollers each for rolling contact with a trolling plate ear for seating in multiple recesses therein. Each recess is associated with a different plate position.

Abstract: A hydrofoil for attachment to an outdrive or outboard motor supports a trolling plate projecting rearwardly from the hydrofoil when in a raised position. The trolling plate includes a pair of arms having a lockable member therebetween slidably engageable with a latch pivotally mounted on the hydrofoil. Downward trolling plate deployment may occur upon elevation of the latch by an operator control which permits the lockable member to travel lengthwise of an elongate opening in the latch and into one of multiple catches in communication with the elongate opening. A first pair of torsion springs urge the trolling plate to a deployed position. A second set of torsion springs urge the latch toward a position securing the lockable member against movement. Multiple trolling plate positions allow maneuvering of a boat with a deployed trolling plate.

Abstract: A braking system for a vehicle such as a trailer having electric brakes which utilizes a carbon-pile voltage regulator. A piston of the regulator is responsive to hydraulic pressures occurring in the tow vehicle brake system to bias the disks to increase current flow. An electromagnet is utilized to preload the carbon disks with a gain control provided in circuit with the electromagnet to vary preloading. Mechanical means are provided in the regulator to limit outward displacement of the piston component of the regulator and, in a modified form of the regulator, a core of the electromagnet. Hydraulic fluid acting on the regulator is isolated from the fluid of the hydraulic brake system by a diaphram unit.

Abstract: A combination including an electric brake control, ammeter and multiple brackets are disclosed for installation at the driver's station of a trailer towing vehicle. The brackets permit optional mounting of the ammeter on the control. A slotted opening in one of the brackets permits adjustment of the bracket about a horizontal axis for optimum viewing the bracket supported ammeter by the towing vehicle driver and also vertical positioning of the ammeter relative the brake control.

Abstract: A hydrofoil adapted for attachment to a boat propulsion unit. The hydrofoil defines a recessed area on its underside in which a trolling plate may be positioned. A pivot shaft couples the plate to the hydrofoil permitting upright deployment of the plate for slowing of the watercraft. A locking bar on the hydrofoil serves to engage stops on the plate to lock same in retracted and deployed positions. A control permits remote operation of the locking bar.

Abstract: A mirror assembly having a two piece bracket for clamped attachment to the ends of an original equipment side view mirror. A first bracket component is bifurcated to engage a mirror arm and is fastened to a second bracket component which includes tabs which seat against the outer end of the original mirror. A mirror is carried by the second bracket component.

Abstract: An auxiliary mirror having a base with perpendicular members for abutment with a vehicle mirror housing. An extension on one of the members carries the auxiliary mirror. Elastic straps with hook elements secure the base to the mirror housing. The base is shaped to abut the mirror housing perimeter.

Abstract: An elongate plate slotted for a major portion of its length receives a fastener for adjustably securing the plate to the side view mirror bracket of a vehicle. The plate has a lengthwise extending shoulder which abuts an edge of the side view mirror bracket of the vehicle to assure plate and bracket alignment. The plate defines an opening offset to one side from the elongate opening and shoulder of the plate and receives a fastener securing a side view mirror to the plate and permits side view mirror retraction proximate the original position of the mirror on the side view bracket of the vehicle.