Abstract: A self adjusting variable pitch aircraft propeller assembly includes a mount, hub assembly and propeller. The mount has a threaded shaft and a slot. The hub assembly has a front hub and a rear hub, both the front hub and the rear hub have a hole for passage of the shaft. The propeller seats within the hub assembly and selectively rotates automatically in the hub assembly and the RPM of the engine increases and decreases. The propeller has a pin that is coupled to a sled in a slot of the mount. A spring and a nut are configured to be coupled around the threaded shaft with the spring between the hub assembly and the nut. The hub assembly is configured to translate along the mount in accordance with a speed of rotation of the hub assembly.

Abstract: A central computer equipped with communications hardware and specially designed software receives transaction data from personal transaction stations operated by traders, sends back verification information to the traders, reconciles all trades, informs traders when an error occurs, generates complete records of all transactions, reports price and volume data to quote vendors, provides numerous reports which analyze trading activity to detect potential regulatory violations, creates a complete real-time backup copy of all data, and provides intraday profit, loss, risk, and margin information to exchange and Futures Commission Merchant personnel.

Abstract: A bag is provided which is inclusive of a mouth for the insertion of objects to be stored in the bag. The bag is provided with an input section at the mouth to guide the objects via the mouth into the bag. The input section is adapted for being curled in order to function as a closure for the mouth. A retainer is furthermore provided for being hooded over the input section with the latter having been curled thereby to retain the closure at the mouth. A substantially rigid bar of curved form is provided on the bag at the mouth for imparting a curved conformation to the structure to enhance the closure. The retainer is preferably of a pouch-like configuration defining a receptacle to receive the input section in its curled condition. The bag and input section are of a monolithic construction which is of a waterproof material.