Abstract: A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt of acetic acid, a water-soluble salt of phosphoric acid, and a water-soluble salt of boric acid; and a water-soluble polymer selected from the group consisting of polyacrylic acid, water-soluble salts of polyacrylic acid, hydrolyzed polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, copolymers of the foregoing, and a copolymer of acrylic acid and maleic anhydride, the amount of water-soluble polymer in said sealant composition being from 0.1% to 3.0%, by weight, and the amount of water-soluble dispersant in said sealant composition being from 0.1% to 3.0%, by weight, the weight ratio of water-soluble dispersant to water-soluble polymer being from 6:1-36.

Abstract: The ASTM E84 flamespread of fibrous products such as hardboard is reduced by incorporation of a combination of alumina trihydrate and a source of B.sub.2 O.sub.3, such as boric acid. The B.sub.2 O.sub.3 source should be capable of providing B.sub.2 O.sub.3 at a temperature below 400.degree. C.

Abstract: A method and apparatus for decorating embossed panels by removing liquid colorant from portions of the surface. The apparatus includes at least one driven support roll underlying the panels for moving the panels along a work path and at least one wiping roll supported on an axis above the work path having a cylindrical resilient wiping surface driven at a speed for wipingly engaging an upper surface of the panels passing under the wiping roll on the work path. The wiping roll is supported and biased for movement toward and away from the work path to provide selectively adjustable wiping pressure against the surface of the moving panels and a doctor blade angularly engages the wiping surface of the wiping roll along a line spaced away from the area of wiping contact between the panels and the wiping roll for removing liquid colorant from the wiping surface of the roll.

Abstract: An improved method and apparatus for fabricating reticular sheet material utilizes dies for shearing a sheet of metal into interconnected strands, mandrels for bending alternate interconnections of the metal in opposite directions to form ridges and valleys between the strands, and inserting punches into the sheared areas between strands while holding the ridges with other punches to form uniform openings in the areas between the strands.

Abstract: An industrial waste water containing hexane soluble impurities is adjusted in pH to a value of at least 11.6 and thereafter calcium chloride is added to that waste water in an amount of at least 1,700 parts per million, based on the total weight of industrial waste water. A metal hydroxide floc results which includes a substantial portion of the hexane soluble impurities attached to or incorporated in the floc. The floc can be agglomerated with conventional coagulants and then separated from the clarified waste water. The calcium chloride will react at this very high pH to effectively flocculate a substantial portion of the oils and greases (hexane solubles) in addition to a substantial portion of the contaminating metal ions in the industrial waste water.

Abstract: A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt of acetic acid, a water-soluble salt of phosphoric acid, and a water-soluble salt of boric acid; and a water-soluble polymer selected from the group consisting of polyacrylic acid, water-soluble salts of polyacrylic acid, hydrolyzed polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, copolymers of the foregoing, and a copolymer of acrylic acid and maleic anhydride, the amount of water-soluble polymer in said sealant composition being from 0.1% to 3.0%, by weight, and the amount of water-soluble dispersant in said sealant composition being from 0.1% to 3.0%, by weight, the weight ratio of water-soluble dispersant to water-soluble polymer being from 6:1-36.

Abstract: A consolidated man-made board, such as hardboard, is wetted on one surface with a chemical, such as ammonium hydroxide, and thereafter embossed with a contoured embossing plate at a pressure of at least about 1000 p.s.i., at a temperature in the range of about 400.degree.-550.degree. F. and for a period of time sufficient to permanently reshape the surface of the consolidated board. The use of chemical wetting agents including ammonium hydroxide, mineral acids including hydrochloric, sulfuric, nitric and phosphoric acids, oxalic acid, and metheneamine is disclosed.

Abstract: A tool is provided for inserting bearings comprising a plurality of expandable segments, a shaft having a cam means attached thereto said cam means including means for expanding each of said expandable segments radially outwardly from said shaft, wherein the expandable segments have at least one flange portion for abutting a bearing race and driving the bearing race into position such that expansion of the expandable segments increases the distance of said flange portion of each expandable segment radially outwardly from said shaft and adapts said flange portions for abutting engagement with various diameter bearing races. In this manner, a single tool can drive a number of different diameter bearing races without removing and reattaching parts.

Abstract: A rotary cutting device for removing spot welds includes an upper body section telescoping into a lower body section and a cutting bit secured in the upper body section and extending through the lower body section. The cutting bit has a flat cutting end so that a spot weld can be completely removed from one metal piece while causing no damage to the metal piece it is welded to. An expansion spring yieldably holds the cutting bit away from cutting engagement with a work piece when not in use. A stop means is provided for controllably limiting the potential downward movement of the cutting bit during use. Two pointed projections extend from the distal cutting end of the device for engaging the work piece to keep the device in proper alignment with the spot weld during cutting.

Abstract: A rupturable press-through blister type medicament or pill package is "childproofed" by securing a strong flexible polymeric backing sheet, such as polyethylene terephthalate, over the rupturable sheet in such a manner that the pill cannot be forced through the package unless the backing sheet is first peeled off.