Abstract: A flowmeter capable of real-time fuel mass flow measurement involving extremely low fuel mass flow quanta. The flowmeter includes a dual flow path conduit system, a flow control for alternating the selection of one flow path exclusive of the other flow path, an indicator tube interfaced with the conduit system, an indicator shuttle slidably mounted in the indicator tube, and a sensor for sensing the position of the indicator shuttle relative thereto.

Abstract: A flowmeter capable of real-time fuel mass flow measurement involving extremely low fuel mass flow quanta. The flowmeter includes a dual flow path conduit system, a flow control for alternating the selection of one flow path exclusive of the other flow path, an indicator tube interfaced with the conduit system, an indicator shuttle slidably mounted in the indicator tube, and a sensor for sensing the position of the indicator shuttle relative thereto.

Abstract: A lift or elevator for goods or passengers suitable for installation to existing low rise residential or commercial buildings. The lift comprises an upright hollow column (40) having a slot extending along the length of one face (47) thereof, a carriage (50) slidably mounted within the column on tracks (48), a cantilever beam assembly (54) supporting a lift car (55) attached by brackets (52, 53) to the carriage through the slot, a hydraulic ram (60) mounted within the column beneath the carriage and a cable (66) attached to a retaining member (67) at one end, and, via a pulley (63), to the carriage at the other end for elevation thereof. An electrical control circuit, an hydraulic control circuit as well as a method of installing the lift are also disclosed.