Abstract: A cleaning sytem for automobile exhaust gases has a perforated inlet allowing the gases to enter a sump area containing liquid for washing the gases. Nozzles spray cleaning liquid onto the washed gases passing through gas-permeable baffle plates, the cleaning liquid dropping into the sump area below. The cleaning liquid then passes to a tank for separating out pollutants and the gases pass to a second chamber for spray washing while passing through a further series of gas-permeable baffle plates. The cleaned gases are filtered in a separator box before passing into the atmosphere. Crankcase vapors may also be added into the stream of exhaust gases and cleaned in the system of the invention.

Abstract: A cleaning system for automobile exhaust gases has a perforated inlet allowing the gases to enter a sump area containing liquid for washing the gases. Nozzles spray cleaning liquid onto the washed gases passing through gas-permeable baffle plates, the cleaning liquid dropping into the sump area below. The cleaning liquid then passes to a tank for separating out pollutants and the gases pass to a second chamber for spray washing while passing through a further series of gas-permeable baffle plates. The cleaned gases are filtered in a separator box before passing into the atmosphere. Crankcase vapors may also be added into the stream of exhaust gases and cleaned in the system of the invention.

Abstract: Anti-tampering bolt locking devices for hinged or sliding railway freight car or for other freight vehicle doors. The bolt locking devices may consist of air pressure or electromagnetically controlled bolt detents which may be either locally or remotely operated. The bolts may be directly operated by air pressure cylinders. Compressed air cartridges may be employed as the compressed air source. The cartridges may contain small quantities of lubricant such as graphite, or the like.