Abstract: A container such as a barrel or drum is provided for processing of solid material or parts with a liquid. The container is designed with grooves leading to holes or slots in the side that draw liquid into the container due to the rotation of the container when it is immersed in a tank of liquid. The holes or slots have a small dimension in the direction of rotation to minimize the probability of solid material coming out of the container. The fluid flow caused by the rotation serves to increase the rate of solution replacement inside the container as well as to keep the solid material from falling out through the holes or slots. The container disclosed is useful in processes in the plating, etching, leaching, and surface finishing industries.

Abstract: A container such as a barrel or drum is provided for processing of solid material or parts with a liquid. The container is designed with grooves leading to holes or slots in the side that draw liquid into the container due to the rotation of the container when it is immersed in a tank of liquid. The holes or slots have a small dimension in the direction of rotation to minimize the probability of solid material coming out of the container. The fluid flow caused by the rotation serves to increase the rate of solution replacement inside the container as well as to keep the solid material from falling out through the holes or slots. The container disclosed is useful in processes in the plating, etching, leaching, and surface finishing industries.

Abstract: A container such as a barrel or drum is provided for processing of solid material or parts with a liquid. The container is designed with grooves leading to holes or slots in the side that draw liquid into the container due to the rotation of the container when it is immersed in a tank of liquid. The holes or slots have a small dimension in the direction of rotation to minimize the probability of solid material coming out of the container. The fluid flow caused by the rotation serves to increase the rate of solution replacement inside the container as well as to keep the solid material from falling out through the holes or slots. The container disclosed is useful in processes in the plating, etching, leaching, and surface finishing industries.

Abstract: The present invention relates generally to a system and method for welding pipes and controlling the flow of purge gas through the pipes. Purge gas may be remotely controlled by a portable signal input unit.

Abstract: An improved sandwich structure including a top facing sheet, a bottom facing sheet, a core located between the top facing sheet and the bottom facing sheet, and a damping layer extending only partially across the core and not fully interrupting the continuity of the core between the top facing sheet portion and the bottom facing sheet portion to provide damping to the core without adversely affecting the static stiffness or strength of the core.

Abstract: An optical table including a top facing sheet with apertures therethrough for supporting components on the top facing sheet, a bottom facing sheet spaced from the top facing sheet, and a panel under the top facing sheet including upstanding ribs defining channels between the ribs on one surface of the panel wherein the ribs support the top facing sheet and the channels are located beneath the apertures in the top facing sheet for capturing spills through the apertures in the top facing sheet.

Abstract: A reduced horizontal stiffness vibration isolation system including a gas spring assembly with a load support interface portion and pivot device externally coupled to the gas spring assembly for allowing the gas spring assembly to pivot when either the load support interface portion or the pivot device is displaced to reduce the horizontal stiffness of the gas spring assembly.

Abstract: A heater for heating liquid by friction includes a rotor rotatable within a housing filled with liquid, the rotor having passages arranged to expel liquid through friction orifices by centrifugal force from a pair of inlet cavities on opposite sides of the rotor. The outlets of the passages lie in a common plane on the periphery of the rotor whereas the inlets of alternate passages open alternately into the respective inlet cavities. The housing has a plurality of outlets lying in the plane of the rotor outlets with one of the housing outlets leading to a heat utilization device while the other housing outlets are connected to by-pass passages leading back into the housing through the side or sides thereof. The constant in-flow from the by-pass passages virtually eliminates cavitation while the pre-heated liquid in the passages adds to the heat of the liquid in the housing otherwise frictionally heated by rotation of the rotor.

Abstract: The invention features a honeycomb table including a top facing sheet that may be perforated with openings, a bottom facing sheet, at least one layer of rigid corrugated material comprised of valleys and crests, at least one layer of honeycomb core, and preferably at least one internal stiffening sheet in preferably a permanently laminated composite. The longitudinal axes of the crests and valleys of the rigid corrugated material are aligned generally parallel to the top and bottom facing sheets. The longitudinal axes of the cells of the honeycomb core are aligned perpendicular to the top and bottom facing sheets. Every interface between a layer of rigid corugated material or honeycomb core and any other layer of rigid corrugated material or honeycomb core is preferably occupied by an internal stiffening sheet.

Abstract: A highly effective sleep-inducing pharmaceutical composition that causes few, if any, side-effects contains an amino acid and a cation in certain proportions. The amino acid may be tryptophan, cystathionine, or lysine, preferably tryptophan, and most preferably L-tryptophan, and the cation may be calcium, magnesium, manganese, or lithium, preferably calcium or magnesium, and most preferably calcium. The ratio of amino acid to cation is about 0.02:1 to 1.0:1 when the cation is calcium or magnesium, 5:1 to 100:1 when the cation is manganese, and 0.02:1 to 100:1 when the cation is lithium. The pharmaceutical composition may be administered in any conventional manner.