Abstract:
A flywheel system having permanent magnets 20 disposed on a flywheel 10 rotating about a shaft 12 is provided with a stator 28 having an outer diameter which is oriented concentrically and shaped conically within a similarly shaped inner diameter of the flywheel 10 (and the magnets 20) and the stator 28 is slidably and rotatably mounted to a shaft 30 thereby allowing a gap g.sub.1 between the stator 28 and the rotor/flywheel 10 to be adjustable. When energy is being provided to (spin-up) or extracted from (spin-down) the flywheel 10, the stator is automatically forced to the left (FIG. 1) due to torque on the stator 28, thereby causing the gap g.sub.1 to be small to provide strong electromagnetic interaction between the stator 28 and the flywheel 10. Conversely, when the flywheel 10 is freewheeling, the stator 28 is forced to the right by a spring 40 causing the gap g.sub.1 to increase to a distance large enough to minimize electro-magnetic drag on the flywheel 10.
Abstract:
A method of operating a cross-fired regenerative glass furnace for melting flat glass so as to minimize emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, the method comprising supplying fuel in excess of that required for stoichiometric combustion to ensure that glass of the required quality at the required production rate is obtained, and that the waste gases leaving the furnace through the regenerators contain combustible material, and reacting the combustible material with sufficient air to ensure that the waste gases exiting to atmosphere contain permissible levels of combustible material and permissible levels of NOx. Alternatively, the furnace may be operated at substantially stoichiometric conditions and fuel is supplied to the waste gases as they leave the melting chamber. The invention also relates to a cross-fired regenerator glass furnace for use in the method. The invention further provides a method of reducing the emissions of CO in waste gases leaving a cross-fired regenerative glass furnace for melting flat glass, the furnace having sealed regenerators which act as heat exchangers, the method comprising removing CO from the waste gases in the regenerator by combusting CO in around 8% excess air, based on the combustion air for the supplied fuel, at a temperature greater than 650.degree. C.
Abstract:
A thixotropic gel composition is disclosed as a fiber optic buffer tube compound. The composition as a fiber optic buffer tube compound is resistant to syneresis and phase separation, and to ingress of water and water vapor. The composition has low temperature flowability at -40.degree. C. as determined by a cone penetration test and has continued high temperature consistency at +80.degree. C. The composition retains its low temperature flowability property after a heat aging test at 93.degree. C. The composition comprises polybutene, polyethylene wax, hydrophobic fumed silica, and, optionally, an antioxidant.
Abstract:
A secondary of an elevator linear motor includes a highly conductive layer, the layer having a plurality of periodically spaced grooves disposed horizontally therein, the grooves providing space for thermal expansion of the layer and guiding current induced on said layer thereby increasing the efficiency of the motor.
Abstract:
A powered respirator helmet comprises a shell, having a passage, between a filter medium, and a fan, mounted in the front peaked part of the helmet shell. An air intake permits air to be drawn by the fan through the filter medium, through the passage and to be exhausted by the fan into the space between a wearer's face and a visor. The helmet is more compact, lighter and less expensive to service than existing respirator helmets, while providing more effective respiratory protection.
Abstract:
A fuel metering apparatus having a metering chamber to hold fuel for subsequent delivery to an engine and a rigid metering member projecting into said chamber and linearly movable relative to the chamber to vary the extent of projection of the metering member into the chamber to thereby control the quantity of fuel displaceable from the chamber for delivery to an engine. An inextensible flexible member between secured to the metering member and to a motor that operate in accordance with the engine fuel demand, the motion of the motor being transmitted to the metering member through the inextensible flexible member. This inextensible flexible member preferably being adjustably coupled to the motor so the limit of movement of the metering member may be set as required.
Abstract:
The adhesion of crystalline alumina to adhesives is enhanced by coating the surface of the alumina that is to be in contact with the adhesive, with a very thin coating of a siliceous material such as sputter coated silica.
Abstract:
A frequency stable RF oscillator 10 comprises a variable frequency RF source in the form of a microwave cavity 24 having a Gunn diode 26 and a varactor 28 mounted therein, and produces an RF output frequency f.sub.o. The output of a frequency stable reference oscillator 14 having a frequency f.sub.r is impressed upon the RF source. Through self-mixing action of the Gunn diode, an IF whose frequency is f.sub.IF =.vertline.nf.sub.r -f.sub.o .vertline. is generated, n being a high harmonic number. The IF is detected by an IF amplifier 18 which forms part of a frequency lock loop controlling the frequency of the RF source.
Abstract:
A combination cosmetic container and support arrangement is disclosed herein along with a particular way in which it is assembled. The container itself includes a main section defining a compartment adapted to house a cosmetic therein and a cooperating lid. The combination arrangement also includes a support tab having a sheet-like main body which includes a cutout configured to accommodate the container. More specifically, the container with its lid closed is supported within the cutout such that at least one edge section of the tab body along the cutout extends into and between the container's main section and closed lid for maintaining the container in place. The entire tab and its supported container may be hung from a shelf peg or the like by means of a cooperating through-hole in the tab's main body.