Abstract: A hydrostatic translation slide support, comprises a housing, a slide member, a low pressure chamber and a high pressure chamber, a support ring which is elastically held against the housing and pressed with a uniform tensioning against the slide member, the support ring being movable in the housing substantial normal to the slide member, a first sealing ring fixedly held by the support ring and located between the support ring and the slide member to limit the high pressure chamber, a second double lip sealing ring arranged in the housing and surrounding the support ring so as to limit the low pressure chamber, means forming a supply passage in the housing for supplying a hydraulic medium into the high pressure chamber, and means forming a discharge passage for withdrawing the pressure medium from the low pressure chamber.

Abstract: An improved bow and/or stern seal is provided for a surface effect vehicle herein the vehicle has a pair of spaced apart side hulls which are joined by a wet deck, and the bow and stern seals extend between the side hulls so that an air cushion can be formed between the side walls and the bow and stern seals. The improved seal includes a portion of the deck having an opening for providing an air inlet to the air cushion. An elongated pneumatic bag is mounted along its length to the bottom of the wet deck, is sealed at its ends and is positioned to receive air from the deck opening along its forward side. Provision is made for a passageway between the side hulls for directing air around the forward side of the bag.

Abstract: The gap between a bearing surface and the free edge of a wall extending opposite this surface and bounding therewith a volume of water or other liquid, is sealed against liquid leakages by a cushion of air or other gas surrounding the gap and having a pressure higher than that of the volume of liquid. This liquid is furthermore circulated along a closed circuit.