Abstract: A process for CO2 separation using a regenerable Mg(OH)2 sorbent. The process absorbs CO2 through the formation of MgCO3 and releases water product H2O. The MgCO3 is partially regenerated through direct contact with steam, which acts to heat the magnesium carbonate to a higher temperature, provide heat duty required to decompose the magnesium carbonate to yield MgO and CO2, provide an H2O environment over the magnesium carbonate thereby shifting the equilibrium and increasing the potential for CO2 desorption, and supply H2O for rehydroxylation of a portion of the MgO. The mixture is polished in the absence of CO2 using water product H2O produced during the CO2 absorption to maintain sorbent capture capacity. The sorbent now comprised substantially of Mg(OH)2 is then available for further CO2 absorption duty in a cyclic process.

Abstract: A method for separating CO2 from a gas stream comprised of CO2 and other gaseous constituents using a zeolite sorbent in a swing-adsorption process, producing a high temperature CO2 stream at a higher CO2 pressure than the input gas stream. The method utilizes CO2 desorption in a CO2 atmosphere and effectively integrates heat transfers for optimizes overall efficiency. H2O adsorption does not preclude effective operation of the sorbent. The cycle may be incorporated in an IGCC for efficient pre-combustion CO2 capture. A particular application operates on shifted syngas at a temperature exceeding 200° C. and produces a dry CO2 stream at low temperature and high CO2 pressure, greatly reducing any compression energy requirements which may be subsequently required.

Abstract: A stand for a musical instrument is sturdy, durable, virtually unbreakable, lightweight, simple and inexpensive to construct, and supports an instrument (e.g. a string instrument) in an upright readily accessible manner; yet the stand is simple easy to disassemble for ready transport in a low volume configuration. The stand includes two substantially planar (e.g. molded of polycarbonate) support pieces, with a slide connection between them. An abutment piece preferably fits between the support pieces for ease of transport, and when the stand is assembled fits atop the support pieces. The neck of a guitar, violin, banjo, or like instrument, fits in a recess in the abutment piece, while the body of the instrument is supported by leg portions of the support pieces. A locking member, such as an elastic strap, can extend over the recess to prevent the instrument from detaching from the stand. The stand can be constructed to support multiple instruments.

Abstract: An easily disassembled, rugged stand for supporting musical instruments does not require moving parts, hinges, or screws. The stand is made of two similar interlocking supports, a cap and a removable, flexible strap. The supports are adapted to be fastened together and contain the cap when the stand is disassembled. Further, the flexible strap may be fastened to the supports and used as a handle. When the stand is assembled, the supports are further stabilized by the cap, and the flexible strap may be attached to the cap and used to hold, for example the neck of a guitar.

Abstract: A device for measuring and displaying the time elapsed in increasing or in decreasing the speed of a vehicle from one predetermined velocity to another includes means for starting a clock at a predetermined, selectable speed, means for stopping the counter when a predetermined, higher or lower speed has been attained, means for displaying the time elapsed in increasing the predetermined starting speed to the predetermined, higher or lower ending speed, and means for resetting the clock counter.

Abstract: A carbon current collection brush having improved wear characteristics and exhibiting a relatively low coefficient of friction at its sliding contact surface (e.g., with a commutator or slip ring) is made by impregnating a brush blank with a solution containing an organometallic compound and an organic resin. The thereby impregnated brush blank is then cured to remove volatiles and retain approximately one to nine percent, by weight, of the organometallic compound and the organic resin in the brush blank.

Abstract: A wheel assembly having an axle with two vertically spaced control arms pivotably mounted to two staggered arms of a spindle assembly. One arm of the spindle has an aperture receiving a rotatably mounted sleeve. The sleeve has an aperture therethrough which is eccentric with respect to the central axis of the sleeve. The eccentric aperture is constructed to receive a tapered ball stud integral with the ball mounted within a control arm. The ball stud extends through the aperture with a fastener threaded thereon to abut the sleeve and to draw a tapered section of the stud into the tapered aperture to expand the sleeve and to frictionally lock the sleeve within the aperture of the spindle. The sleeve when unlocked can be rotated to adjust the camber of the wheel assembly.