Abstract: A latch assembly disposed in an anti-fire door includes a tube, a blocking pin, an elastic member and a wedging member, wherein the tube comprises a main body and an accommodating space. The main body comprises a constraining slot communicating with the accommodating space, wherein the blocking pin, the elastic member and the wedging member are disposed in the accommodating space. The elastic member is used for pushing the blocking pin and the wedging member to move and making the blocking pin protruding to the tube and lodging in a door frame. The wedging member lodged in the constraining slot is used for blocking the blocking pin protruded to the tube therefore preventing the blocking pin from retracting back into the accommodating space.

Abstract: An air conditioning flashing hood adapted to be connected to the wall structure and extend through the exterior wall of the structure to provide a passage through which a refrigerant line and an electrical control line may extend to communicate with an external compressor. The air conditioning flashing hood includes an internal sealing element which compresses against the outer surface of the refrigerant line and the electrical control line to form a substantially weather-tight seal therebetween to mitigate fluid migration along the lines into the structure, as well as to provide a barrier for any bugs, debris or animals to keep such undesirable objects from entering the structure.

Abstract: A coal-fired steam locomotive powered by reciprocating steam engines. The locomotive is a two-unit drawbar-coupled locomotive. The units, which are designated as a power unit and a support unit, are arranged back-to-back, with each having a cab-in-front. Operation of the locomotive is equally effective in both directions. The power unit basically contains a furnace and combustion system, an ash storage system, a gas cleanup and exhaust system, a boiler and steam generator, steam engines, a jet condenser, and a control cab. The support unit, on two 6-wheel trucks, contains a modular coal storage area, a stoker motor, a water storage area, heat transfer assemblies and fans for air-cooling circulating water, and a second control cab. The coal-gasification furnace, steam boiler, and steam engines are all in a closed system. Further, the steam engines of the locomotive are in the form of a four cylinder, balanced system for driving the running gear of the locomotive.