Abstract: An information retrieval/distribution system configured on computers and for requesting the retrieval of information which is scattered on a network, comprises an information retrieval request unit for requesting the retrieval of information and a plurality of database management units for managing databases. Each of the plurality of database management units (e.g., each manager) has management information about the databases which are managed by each manager, and has management information about the databases which are managed by other database management units which can be connected to each manager through said network. When a retrieval criterion is input to the information retrieval request unit, one of the plurality of database management units (e.g., one manager), based on the management information in one manager, retrieves the information in the databases managed by one manager, and requests any other database management unit (e.g.

Abstract: An information retrieval/distribution system configured on computers and for requesting the retrieval of information which is scattered on a network, comprises an information retrieval request unit for requesting the retrieval of information and a plurality of database management units for managing databases. Each of the plurality of database management units (e.g., each manager) has management information about the databases which are managed by each manager, and has management information about the databases which are managed by other database management units which can be connected to each manager through said network. When a retrieval criterion is input to the information retrieval request unit, one of the plurality of database management units (e.g., one manager), based on the management information in one manager, retrieves the information in the databases managed by one manager, and requests any other database management unit (e.g.

Abstract: This invention relates to a bread baking device, and is intended to attain the objective of providing a bread baking device having no exclusive cooling fan as an extra special part, and enabling low-cost production, by integrally shaping a cooling fan in one piece with a driving pulley mounted on the driving shaft of a driving motor, and by efficiently cooling the generated heat in said driving motor and the frictional heat generated in a belt by circulating air flow in accordance with the revolution of said driving motor.

Abstract: A built-in oil cooler, comprising an outer tube and an inner tube, the latter tube is provided with a plurality of dent and projection portions alternately formed on its surface in axial direction thereof. Said inner tube is inserted in said outer tube to keep its outside face having no dent portion in contact with inside face of said outer tube, forming oil space between both of said tubes. Oil within said oil space flows zigzag to assure very good heat transfer rate.