Abstract: A clustered server system and a method for maintaining a server cluster involve a plurality of servers that collectively form a server cluster. A master database stores configuration information concerning the server cluster. Each server stores a local copy of the configuration information in a file system. The servers automatically update their respective file system using a database copy of the configuration information if the configuration information changes in the database.

Abstract: A clustered server system and a method for maintaining a server cluster involve a plurality of servers that collectively form a server cluster. A master database stores configuration information concerning the server cluster. Each server stores a local copy of the configuration information in a file system. The servers automatically update their respective file system using a database copy of the configuration information if the configuration information changes in the database.

Abstract: This is an actuating device to be attached to a wall-mounted switch plate for actuating a light switch in a room or other place at a pre-determined time interval and/or for deactivating such light switch or a combination of the two. The device is particularly characterized and it may mount onto the wall place and does not require disconnection thereof from the wall or alternatively may replace the wall plate. It is further characterized by a simple, manual, override switch.

Abstract: This invention is in the field of electrically operated amusement vehicles, such as bumper cars and the like, in which the vehicles receive electrical energy from segments of floor material alternately connected to the different poles of a source of electrical energy. This invention is particularly characterized by a means wherein an alternating current source of electricity is connected to the floor material together with an appropriate corrective circuit arrangement in the vehicle to convert, automatically, so as to provide direct current within the vehicles themselves. A particularly unusual feature includes the method of providing multi-phase current in such manner as to provide for increased power and speed to the vehicle depending upon the skill of the operator, together with an electronic speed control.