Abstract: System and methods obtain ontology and contextual data for a plurality of domains, and generate an ontological knowledge graph using the ontology and contextual data. The ontological knowledge graph includes a plurality of nodes with links between the plurality of nodes, wherein the plurality of nodes are contained within a spherically represented data structure. The plurality of nodes with the links are displayed in a curvilinear orthography world metaphor digital view within the spherically represented data structure.

Abstract: The invention relates to diaphragm spring friction clutches in which the diaphragm spring is supported on a cover by tabs which extend through slots between the fingers of the diaphragm spring and are bent radially outwards on assembly over an adjacent arc of a fulcrum ring which is on the opposite side of the spring to the cover. To achieve firm clenching of the diaphragm spring and the fulcrum ring by the tabs, during the bending operation each tab is supported against radially inward movement where it extends through the spring slot while the fulcrum ring is supported against radially outward movement over those arcs which are gripped by the tabs.