Abstract: Lightweight, simple rug cleaner for residential use which uses a powdered cleaning composition for the cleaning of carpets. The cleaning composition comes in a throw-away, disposable container which is inserted into the rug cleaner for use.

Abstract: The invention relates to a method and apparatus for checking the internal pressure of a filled lamp bulb. According to the invention, a filled bulb to be checked is inserted into a gas tight chamber; the chamber is then sealed and pressurized. The lamp envelope is broken by means in the chamber. Chamber pressure is measured before and after breaking the envelope.

Abstract: A new and improved brush for a carpet scrubber with a flat, even continuous outer bristle extremity.

Abstract: Stack gases from fossil fuel burning operations before being released to the atmosphere are passed through a scrubber, wherein sulfur dioxide is removed from the gases by scrubbing with metallic carbonates. The metallic carbonates react with the sulfur dioxide to form a liquid effluent comprising metallic sulfates. The effluent is placed in a basin and inoculated with a microorganism which reduces sulfate ions to hydrogen sulfide, preferably bacteria from the genus Desulfovibrio, thereby also regenerating metallic carbonates. The effluent is contemporaneously or serially inoculated with saline compatible bacteria from the genus Beggiatoa whereby the hydrogen sulfide is oxidized to form sulfur. After treatment by the bacteria, the effluent is recycled to the scrubber for use therein and the sulfur is recovered.

Abstract: A device for scrubbing carpet having a brush which rotates about a point which is eccentrically driven in a small circle. The bristled area of the brush has a number of protruding areas around its periphery. When the scrubber is used with powdered cleaning composition, the bristles in these protruding areas press the powder down into the pile of the carpet and so tend to minimize redistribution of the powder by the brush as it rotates. A press bar may be located at the front of the machine to press powder down into the pile of the carpet. Means may also be included for dispensing powder in front of the press bar.

Abstract: A device for scrubbing carpets having a scrubber which rotates about a point which is driven in a circle wherein the scrubber is pivotably mounted on a frame and the weight of the device is supported by the scrubber and two wheels at the rear of the frame. A press bar may be included at the front of the machine for pressing powdered cleaning composition into the carpet.

Abstract: weld-filler material particularly useful in providing enhanced freedom from weld cracking in fully austenitic Fe--Ni--Cr--Mo--Cu material in which the elements P, Cb, Ce+La, C, Si, S, N and O are controlled to low levels and in which the level of manganese is increased to at least 1% and preferably to at least 1.5%. The weld-filler material in weight percent contains:Carbon -- 0.035 Max.Manganese -- 1-4.0Silicon -- 0.20 Max.Phosphorus -- 0.020 Max.Sulfur -- 0.005 Max.Chromium -- 19.0 -26.0Nickel -- 32.5-38Molybdenum -- 2-9Copper -- 3.0-4.0Columbium -- 0.35 Max.Cerium -- 0.01 Max.Boron -- 0.0035 Max.the balance being iron and in which cerium includes cerium plus lanthanum or misch metal.