Abstract: A thin-client navigation-satellite receiver network collects GPS pseudorange measurements and communicates them from many independent clients on a computer network to a server. The server computes the respective navigation solutions and sends the results back to each client. A client manager at the server includes a client-request handler that interfaces with the network and collects the discrete requests from each of the clients. An assembler builds complete data sets from one to five seconds worth of data gathered by the client-request handler and spins each ready-to-go job to a bank of navigation servers. A session manager coordinates the inputs-and-results communication on the network and sends its outputs to a client responder.

Abstract: A hub shell comprises a hollow cylindrical body with a spoke flange and a hub head at each end. The spoke flange has a number of bores arranged radially around the flange perimeter, with the spacing and angle of the bores being dependent upon whether the hub is to be for a front wheel or a rear wheel. In every case, the bore is formed at an angle directed inward from the ends of the hub. The perimeter face of the hub flange is formed at the same angle as the bore so that the spoke exits the flange generally perpendicular to the perimeter face of the flange but angled with respect to the hub axis. Each bore has an inner thread which matches the thread pattern of the threaded end of a standard bicycle spoke. Both ends of the spoke will have the same outside thread so that either end may be inserted into the hub or into the spoke nipple at the wheel rim.