Abstract: Techniques for discovering database connectivity leaks are presented. Each connection made by an application to a database is monitored. When the application is shut down, if information regarding a particular connection remains in memory, then that connection is reported as a potential database connectivity leak.

Abstract: Techniques for discovering database connectivity leaks are presented. Each connection made by an application to a database is monitored. When the application is shut down, if information regarding a particular connection remains in memory, then that connection is reported as a potential database connectivity leak.

Abstract: A lathe workholder which allows a conventional three jaw chuck to turn quadrilateral stock having a first unitary workholder member interposed between two of the jaws and the stock and having a crotch portion which straddles two sides of the stock; a second workholder member interposed between the remaining jaw and the stock and diametrically opposed from the first member and having a crotch portion which straddles the remaining two sides of the stock, so that the conventional three jaw chuck can be utilized to retain quadrilateral stock and lathe down time is reduced.

Abstract: A tile cleaning device for removing calcium build-up which occurs substantially at and above a liquid level in a pool or the like which includes a wheeled frame adapted to be placed on a ledge surrounding the pool which is driven to cause the frame to move away from the pool edge, a brush attached to the frame and driven by a motor, the brush extending within the pool and adapted to abut against tile forming a pool wall so that the tension of the frame moving away from the pool provides pressure against the brush for cleaning the tile. Additional pressure can be brought to bear against the tile by providing an additional wheel with adjustment to alter the configuration of the frame relative to the pool edge so as to change the angle of attack of the brush, and a source for providing water upon the brush-tile interface is provided not only to lubricate the interface, but also to wash away calcium deposits that are stricken off the tile.