Abstract: An automatic steam pressure generator comprises compression means to compress ambient air, power means to power the compression means, an air receiving tank to store the compressed air, continuous combustion burner means to burn fuel with the compressed air providing a high pressure, high temperature combustion product, water injection means to inject water into the combustion products providing a lower temperature mixture to steam and combustion products, and a steam storage tank to store the mixture of steam and combustion products. Steam supply control means and burner control means are responsive to the pressure in the steam storage means regulating the amount of the mixture that is produced in order to provide automatically a relatively constant pressure supply of the mixture.

Abstract: A vertical takeoff and landing airplane has a plurality of rotors which are positioned selectively about the center of balance of the airplane so that it can hover upon failure of any one of the rotors. Each rotor is driven by an associated steam propulsion unit and the rotors and propulsion units are constructed so that they may be tilted about their lateral axes from vertical lift positions to horizontal propulsion positions while the airplane is in flight. The working fluid upon which the propulsion units operate is supplied from two or more combustion centers which are separated from the propulsion units, and which produce a high pressure steam-combustion product mixture, automatically at a constant pressure, which is routed to a common pressure system for powering the individual propulsion units. Should one of the fuel combustion centers fail, the steam pressure requirements are provided for automatically by the remaining fuel combustion centers.

Abstract: An automatic steam pressure generator comprises compression means to compress ambient air, power means to power the compression means, an air receiving tank to store the compressed air, continuous combustion burner means to burn fuel with the compressed air providing a high pressure, high temperature combustion product, water injection means to inject water into the combustion products providing a lower temperature mixture of steam and combustion products, and a steam storage tank to store the mixture of steam and combustion products. Steam supply control means and burner control means are responsive to the pressure in the steam storage means regulating the amount of the mixture that is produced in order to provide automatically a relatively constant pressure supply of the mixture.

Abstract: A diesel-electric tractor having individually powered wheels carried by two independently mounted steerable trucks. The forward truck is ball and socket mounted to the principal tractor frame to allow pivotal motion in vertical and horizontal planes; the rear truck is pin mounted to allow rotational movement in a horizontal plan. Truck frame mounting by pneumatic anti-shock devices allows operation of the tractor at highway speeds.