Abstract:
An underwater vehicle is disclosed being equipped with a passive optical observation system. The underwater vehicle has an observation window at its disposal which exhibits a diameter in the range from 0.3 to 3.0 m and a curved surface. In order to increase the sensitivity of the passive optical observation system and the ability to detect distant objects, the observation window is part of the passive optical observation system. The entrance pupil of the observation system exhibits a diameter in excess of 0.1 m.
Abstract:
A power actuated mechanism for raising and lowering a console mounted windscreen and/or electronics panel on a fishing boat. An electric actuator has its base end pivoted to the console and its rod end extending downwardly to a pivot connection with the lower end of a rigid bracket. The bracket is secured at its upper end to the electronics box so that retraction of the actuator raises the box and windscreen about a hinge axis while extension of the actuator effects lowering of the box-windscreen.
Abstract:
A bow cover for covering an open portion of the bow in an open-bow boat having a raised interior portion and a flared portion therearound with an inwardly directed opening through each, a cover arrangement being fastenable to the interior portion and extending over the passageway to the bow of the boat.
Abstract:
An improved windscreen device is provided for use with open hull boats. The device has a pair of spaced apart, elongated spool posts each being angled outwardly and rearwardly with respect to the longitudinal axis of the boat. A fabric-like screen extends between the spool posts and has left and right portions which wrap around the spool posts. A pair of left and right brackets rotatably support the spool posts. A ratchet with a handle may be used for rotating the spool posts so that the slack in the screen may be tightened. The device is affixed to the sides of the hull by brackets which allow the windscreen to be quickly and easily engaged or disengaged from the boat. While in use, it provides adequate protection to the boat's occupants from wind and spray. When not in use, the device can be stored in a compact package.
Abstract:
A windshield for vehicles, especially inflatable boats or the like, comprising a rigid frame, the lower leg of which is provided at its outer side or surface with a longitudinal groove possessing undercut portions and serving to receive a complementary structural member, typically a profile member, secured to the vehicle chassis, especially the body or hull of the boat or otherwise.
Abstract:
An in situ refurbishing system for viewing ports aboard pressure-tight hu includes a guide shaped to cooperate with the viewing port and provide a datum axis centered thereon. An axle is rotatably supported by the guide and carries a lapping tool in polishing engagement with the port. Centering guides permit adjustment of the datum axis and pressure means exert a uniform engagement pressure with the lapping tool such that optical quality surfaces may be obtained without extensive dismantling and use of shipyard time.
Abstract:
An improved boat windshield mounting device which greatly reduces the time required to mount and install a windshield on a boat, skiff or the like in which the windshield sill frame members, both front and wing, are interlocked to a mounting strip which is fastened by screws to the deck of the vessel. The mounting strip includes an elongated, aluminum strip substantially L-shaped in which the smaller leg has a bulbous shaped flange disposed thereto with the smaller leg of the mounting strip being interlocked and received into a chamber in the windshield sill frame members, the chamber having a restricted opening which firmly couples and interlocks the sill frame members to the mounting strip. The mounting strip and the sill frame members are interlocked before the mounting strip is fastened by screws to the deck. The mounting strip, including the smaller leg and the flange disposed thereto, is shaped to be usable on both the front sill frame member and the wing sill frame member, even though the front windshield and the wing windshield are disposed at different relative angles to the deck. Additionally, the front and wing sill frame members include a T-shaped groove adjacent the edge along the bottom surface which receives and holds a resilient seal between the sill frame members and the mounting strip which is utilized as required by installation of the windshield.
Abstract:
An improved viewing window construction for deep submersible vehicles and a method of construction thereof is disclosed. A hemispherical glass dome is ground and lapped with an edge radius of twice the dome thickness and fitted on a congruently configured mating ring with a bimetalic gasket providing a strain relieving seal therefor.
Abstract:
An improved viewing window construction for deep submersible vehicles and a method of construction thereof is disclosed. A hemispherical glass dome is ground and lapped with an edge radius of twice the dome thickness and fitted on a congruently configured mating ring with a bimetallic gasket providing a strain relieving seal therefor.