Abstract: A new and improved Stockbridge type damper is disclosed. The improvement includes means for preventing the damper's weights or inertia members from excessive motion so as to minimize the possibility of damper failure.

Abstract: A lightweight mounting structure combination for small dish antennae is provided. The structure includes an upright mast for supporting the dish antennae. The mast has an upper end for attachment to said dish and a lower end for anchoring to a rigid-type structure. The structure also has a bent strut having a lower end for anchoring to a rigid-type structure and an upper end for attachment to said mast. In addition, a second strut is provided having a lower end for anchoring to a rigid-type structure and an upper end for attachment to said mast. Further included is means for anchoring the respective lower ends of the mast, bent strut and second strut to the rigid-type structure and for attaching the respective upper ends of the bent and second struts to the mast. The means includes a bracket, a threaded bolt having a shank portion for extending through the bracket and respective end, and a nut threaded on said bolt for drawing the bracket and respective end tightly together.

Abstract: Magnesium is produced by a thermal reduction process in a reaction-condensation system having a reaction zone and a condensation zone. According to this process, a reducing agent containing a mixture of ferrosilicon and at least 25 wt. % aluminum skim is contacted or reacted in the reaction zone with a calcium-silicon-aluminum-magnesium oxide slag to produce magnesium vapor. The magnesium vapor is transported from the reaction zone to the condensation zone and condensed therein.

Abstract: A multi-position method is provided for gas metal arc welding thick aluminum alloy plates in a single welding pass on each surface of the plates. A first plate edge is provided with a tongue portion having (1) a land surface abutting a portion of a second plate edge, and (2) two arcuate J-shaped side surfaces, each adjoining the land surface at opposite ends thereof and each adjoining its respective side surface of the first plate at an angle approximating 90.degree.. The J-shaped side surfaces and second plate edge surface cooperate to define a modified double-J welding groove. The plates are welded together in a single pass on each side thereof by first depositing a weld bead in the modified J groove on one side of the plates and then, after this bead has sufficiently solidified, a second weld bead is deposited in a single pass in the modified double-J groove on the other side of the plates.

Abstract: A damping spacer having substantially all metallic components thereof made from wrought materials is disclosed. The spacer has a stamped wrought metal frame and a plurality of extruded metal conductor clamp arms which are secured to the frame in a manner that dampens conductor vibrations. Each clamp arm extends outwardly from the frame and is secured to the frame by an extruded metal pivot pin which is affixed to the frame. Each pivot pin has a noncircular cross-sectional shank which extends through a noncircular opening provided in each clamp arm. An elastomer damping collar is inserted on each pivot pin shank so as to also extend through the respective clamp arm opening. The internal and external surfaces of each collar are sized and configured to intimately mate with the noncircular cross-sectional shank of the respective pivot pin and noncircular opening of the respective clamp arm. As such, rotational movement between the pins and the arms caused by conductor vibration is effectively dampened.

Abstract: Magnesium is produced by a thermal reduction process in a reaction-condensation system having a reaction zone and a condensation zone. According to this process, a reducing agent containing ferrosilicon and at least 25 wt. % aluminum is contacted in the reaction zone with a calcium-silicon-aluminum-magnesium oxide slag to produce magnesium vapor. The magnesium vapor is transported from the reaction zone to the condensation zone and condensed therein. The slag is maintained to contain from 1 to 8 wt. % MgO, at least 9 wt. % Al.sub.2 O.sub.3, and have a CaO/SiO.sub.2 weight ratio no less than that provided by the formula 2.1+0.03 (wt. % Al.sub.2 O.sub.3 -9). The slag is also maintained so as to decrepitate upon cooling.

Abstract: A method of forming metal flake from metal particles comprises charging metal particles, liquid and milling material to a mill and operating the mill to form the metal flake. A portion of the metal flake, liquid and milling material is removed from the mill at a rate substantially commensurate with the charging thereto and milling material is separated from the liquid and metal flake.

Abstract: A causticization method including the steps of calcining limestone in the presence of additive means for producing lime of increased lime efficiency relative to the lime that would result from calcining such limestone without the presence of the additive means, lime efficiency being determined on a sodium carbonate solution for which conditions, other than the character of the lime, are fixed, and subsequently feeding the lime of increased lime efficiency into the sodium carbonate solution for producing sodium hydroxide and calcium carbonate from the sodium carbonate.

Abstract: An improved process for the electrolytic production of aluminum by electrolysis of aluminum chloride in a molten salt electrolyte bath. The improved process is characterized by a reduction in solubility of the reduced aluminum metal as well as a smaller metal droplet size permitting closer anode-cathode spacing in the electrolysis cell and a lower electrical resistance. The improvement comprises performing the electrolysis in an electrolyte consisting essentially of from 0.5 to 15 wt. % aluminum chloride, from 0.5 to 40 wt. % of one or more alkaline earth metal chlorides selected from the class consisting of magnesium chloride, barium chloride, strontium chloride and calcium chloride, from 10 to 90 wt. % lithium chloride and the balance sodium chloride.