Abstract: A Dynamic Timeline for a computer-based information source, such as an electronic encyclopedia. The Dynamic Timeline can display Links, typically a reference to a time period, topic, or event. When the user chooses the Link, an array of information is presented to the user about the Link-related time period, topic, or event. Links can highlight individual events and trends that occur over a period of time. Links also can present an editorial perspective of events. The Links are typically listed in chronological order on the Dynamic Timeline for an electronic encyclopedia. The Dynamic Timeline allows users to view different Links by changing some dynamic settings.

Abstract: A process for continuously smelting iron ore by use of coal to yield molten iron or semi-steel is disclosed. The process comprises the steps of establishing a melt covered by slag; inducing the slag and the molten iron to flow countercurrently to one another, toward opposite ends of the smelter; maintaining iron oxide-reducing conditions in that zone of the smelter towards which the slag flows; maintaining carbon-oxidizing conditions in that zone of the smelter towards which the molten iron flows; continuously or semicontinuously tapping the slag from the reducing zone end of the smelter; continuously or semicontinuously tapping the molten iron from the oxidizing zone end of the smelter; and adding to both zones iron ore, coal, oxygen, and flux at addition rates sufficient to keep the molten iron in the reducing zone substantially saturated with carbon, maintain in the slag being tapped an FeO content of about 5 weight percent or less, and maintain in the molten iron being tapped a carbon content of about 0.

Abstract: A shaft, and especially a ship's propeller shaft, sealing assembly which comprises a solid housing structure having a central bore for receiving the shaft, the housing structure accommodating two seals spaced axially along the bore and a void chamber between the seals. The void chamber gives an indication of seal failure and its radial extent is defined by a solid inner wall of the housing structure.