Abstract: A game of two players using paddles to hit a ball against a roof. The roof has a pitch of approximately 6/12 with a front edge approximately eight feet above ground level. The roof having a length of approximately 50 feet and a height of approximately 25 feet. The roof must have either no gutters or have covers on the gutters. The serving player must stand approximately 12 feet from the front edge of the roof, and must hit the ball on one bounce while the returning player has up to three bounces to return the ball from any location. The game has foul out of bound shots if the ball bounces over the left roof edge, over the upper rear edge, and over the right edge of the roof. Additional foul shots are if the ball first lands on an edge or covered gutter of the roof on first bounce. Another foul is if either player extends their paddle over an edge of the roof at any time. A still another foul is if a player interferes with the other player by standing in front of the player whose turn is to hit the ball.

Abstract: Herein is disclosed a method for agglomerating finely-divided particulate material of the types found in flue dusts from electric steel-making furnaces and the like, comprising introducing the dry flue dust together with about 8 to 12 percent by weight of a suitable binder such as water into the inlet end of a screw conveying device so configured and operated as to provide for a retention time for the mixture of binder and particulate material in progressing from the inlet to the outlet of about 15 to 60 seconds.

Abstract: A melt is produced composed of iron, manganese and carbon in known ratios for free-cutting carbon steel with sulfur being included at roughly 0.15%. Aluminum and silicon are added to kill the steel fully and silica and alumina are added to the slag as conditioners in the ladle in sufficient amounts to provide a low ladle slag V-ratio (ratio of weight percent CaO to weight percent SiO.sub.2) of approximately two to one to retard desulfurization during a subsequent ladle treatment process wherein sulfur modifying powders such as calcium carbide, calcium silicon or, alternatively, magnesium-bearing materials are injected into the meld in an argon stream at a rate of about two pounds of contained calcium (or one pound of contained magnesium) per ton of liquid steel over a period of six to seven minutes. The low V-ratio slag holds desulfurization to about 30% while permitting effective calcium treatment of the molten steel.