![]() ![]() It comprises a frame assembly enclosing a primary combustion chamber for burning a supply of solid fuel contained therein, the frame assembly including a front wall, two side walls, a rear wall, a top and a bottom a grate for carrying a supply of solid fuel contained within the primary combustion chamber and a secondary combustion chamber in gaseous communication with the primary combustion chamber for removal of pollutants from exhaust gases exiting the primary combustion chamber. This patent describes a heating apparatus for burning solid fuels. A thermal responsive closure is provided at the upper end of said front passage for closing same when the temperature within the front passage has descended to a predetermined level. A heat exchanger is disposed within the front passage for impingement thereon of solar radiation passing through a transparent panel defining the front of said casing. ![]() The upper end of the front passage connects with the forward end of an upper duct progressing rearwardly above the lower duct and with more » there being a warm air outlet at the rearward extremity thereof. ![]() The upper end of the rear passage connects with the forward end of a rearwardly extending lower duct having a cool air inlet at the rearward end thereof. « lessĪ solar heating unit is disclosed for disposition exteriorly of a building window for heating the air within the space interiorly of the window embodying a casing with a transverse divider for creating a rear passage and a front passage which are in communication in their lower portions. In an armored vehicle having a body of monocoque construction and an engine positioned in the body, a cooling system is described which consists of: a plenum chamber disposed in the body between a sidewall of the body and the engine, the engine being disposed outside of the plenum chamber, a plenum exhaust means associated with the plenum chamber for exhausting gases from a forward portion of the plenum chamber to the exterior of the body, a fan mounted in a rear portion of the plenum chamber, a radiator disposed in the interior of the body substantially in a rear more » corner thereof and operatively connected to the engine, a securing means for securing the radiator and the fan in the body immediately adjacent to each other and in parallel vertical planes disposed generally parallel to the center longitudinal axis of the body, the body including an air inlet opening disposed generally above the engine, a driving means operatively connected to the fan for driving the fan, and the fan being positioned, so that it draws air through the air inlet, then rearwardly through the interior of the body, rearwardly over the engine, laterally through the radiator and generally forward through the plenum chamber and out through the plenum exhaust means, an operator's station positioned in a forward location in the body forward of the engine, and the driving means driving the fan so that it draws air rearward away from the operator's station.
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