Abstract: A container for containing underwater sensors such as sonar transceivers, sonar imaging devices, optical imaging devices, etc, electronic equipment and a cooling liquid for cooling the electronic equipment is connected to a second, variable volume container which acts both as a heat exchanger and as a pressure compensator for compensating the pressure difference between the cooling fluid and the surrounding water or other fluid.

Abstract: A method and apparatus for longitudinally slitting metal strip under tension is provided. The method includes driving the strip forward and controlling the speed thereof through frictional engagement with the strip and slitting the strip under tension while further driving the strip, winding coils of slit strip while still further driving the strip and measuring the speed of the strip before slitting, the speed of slitting and the speed of winding the coils of slit strip and controlling those speeds as a function of the driving speed for providing a predetermined tension during slitting and for winding tighter coils of metal strip. An apparatus is also provided which includes a driven roll means before the slitter, a slitting means which is driven and a take-up winder means which is driven, as well as speed controls for slitting the strip under tension in order to provide tightly wound coils of slit metal strip ranging from light to heavy gauge.

Abstract: An apparatus is provided for winding a continuous, flat strip onto a winding reel to form successive, abutting convolutions along the reel in multiple, flat layers to form a tight coil of strip, which strip may typically be an alloy such as stainless steel. The apparatus includes a winding reel fixedly mounted and having means for imparting axial rotation to continuously wind said strip onto the reel, a guide roll for guiding the strip onto the reel with the guide roll having means for laterally moving it along the axial dimension of the winding reel to form the successive abutting convolutions of strip over the surface of the reel and two movable bridle wheels mounted on generally parallel axes for defining a path of travel for the strip around the bridle wheels and to the guide roll.