Abstract: An integrated, completely automatic solar heating and cooling system for buildings is disclosed. The system includes a first and a second interconnectable cooling/heating subsystem each of which includes a group of solar heat collecting panels, a heat storage reservoir, and a piping network for transferring the heat exchange media, preferably water, therebetween. A third subsystem transfers the media from one or both of the reservoirs to a heat exchanger which transfers heat to or from the building's heating and cooling distribution system. Cooling for the building is accomplished by using a fourth subsystem to chill the media in the first subsystem. In the cooling mode, the solar panels of the first subsystem are covered and used as a heat exchanger, and the second subsystem, isolated from the first heating subsystem, is used to heat the building's hot water system and to provide building heat if required.

Abstract: The invention relates to a method for producing glass, in which an oxide ss is mixed with a reducing agent and a combination of compounds which provide a dopant, donor-acceptor ion pair. This ion pair is selected from the group consisting of trivalent thulium plus trivalent cerium, trivalent bismuth plus trivalent europium, or trivalent bismuth plus trivalent samarium. The resulting mixture is homogenized and heated to about 1100.degree. C. The hot melt is allowed to fall on a ceramic surface and pressed with a second ceramic surface to produce a glass disk. When borax, phosphate, and germanate glasses are used, the glass ingredient is dried overnight at 150.degree. C followed by addition of a quantity of dopant ions, then homogenized, heated, and a disk formed as above.The glass thus produced is capable of emitting monochromatic radiation in predetermined regions of the spectrum wherein the emitted radiation has an unexpectedly high intensity compared with radiation emitted by singly doped glass.

Abstract: A device for indicating irreversibly by means of color change that temperres equal to or above 7.degree. C, 10.degree. C, or 13.degree. C have occurred. A container which has an orifice therein is filled with a liquid which freezes at the temperature to be monitored. A dye is dissolved in the liquid. The orifice is placed in proximity to an indicating paper. When the container is activated by freezing, any increase in temperature after activation causes the liquid to melt, expand and escape through the orifice contacting the indicating paper thereby dying the paper and producing an irreversible signal.

Abstract: A flipped layer method is used to characterize epitaxial layers on a first ubstrate. A second substrate is attached to the epitaxial layer, and the first substrate and a portion of the epitaxial layer are then removed. Measurements are then performed on the remaining portion of the epitaxial layer.

Abstract: An apparatus for sealing a pressurized vessel comprising a hemispherical ped door with an outer rigid surface, an insulating material, an inner rigid material with a flange affixed thereto, and a supporting member for use in combination with lock and hinge mechanisms, the flange on the door cooperating with an inflatable seal that is seated within a groove positioned on the inside surface of the mouth of the vessel.

Abstract: A support which can be assembled and disassembled at room temperature and events translational and rotational motion at temperatures below room temperature. A truncated cone is located between an outer support housing and an inner housing which is to be supported. The narrow end of the cone is sized to fit over the inner housing and the wide end of the cone is sized to fit within the outer support housing. The cone is comprised of a material which has a higher thermal expansion coefficient than the inner housing.

Abstract: A fast, large aperture, electrically actuated shutter mechanism capable of ithstanding high power densities. The shutter's ability to withstand high power densities is achieved by making the shutter plate highly reflective on one side and providing cooling means on the opposite side.

Abstract: Apparatus for use with graphic material supported on a planar surface. Two identical clamps, upon which a reeling means is mounted, are connected by a tape and mounted on the edge of the planar surface. The clamps are U-shaped and have a longitudinal slit in one leg. On the other leg a spool means supported by a housing is attached by a bracket. Each end of the tape is threaded through the slit, around the clamp and connected to the spool means.

Abstract: A device which will attenuate a 10.6 micron wave length light beam from 1% of the original intensity. The original intensity can be as high as 1000 watts. The unit is an absorption cell of variable path length filled with a gaseous mixture of sulfur hexafluoride and nitrogen at a total of one atmosphere. Power attenuation is accomplished by SF.sub.6 - absorption and energy exchange to N.sub.2 or walls. The output is controlled by a motor which moves one of the two windows thus changing the absorption path.

Abstract: An electrical circuit providing for equal power consumption by the included oad elements when selectively energized by independent power sources of differing voltages, through control of the path of current flow through the load elements by rectifiers, the rectifiers being disposed to permit current flow in a direction through the load elements in series when a high voltage source energizes the circuit through one pair of terminals and, without alteration of the circuit, in parallel through the load elements when a low voltage source energizes the circuit through another pair of terminals.

Abstract: A system by which in situ observations of optical damage induced in optical omponents by intense thermal radiation may be made. The process includes the determination of the spectral transmission wherein a scanning monochromator is used to illuminate the sample elements with a light beam of monotonically changing wavelength, and the transmitted light is detected and its intensity recorded as a function of wavelength. Optical damage is detected by the resultant changes in the spectral transmission curve.

Abstract: A lifting body missile is controlled by pitch and roll commands wherein the aw autopilot is caused to change in accordance with the roll and estimated angle of attack input information. A command logic is provided to determine the polarity of the command signals to the autopilot.

Abstract: The off axis angle detector of a radar is sampled at discreet intervals by special purpose digital computer. Each sample is directed to one of a plurality of registers in accordance to the angle indication of the sample. Each register being a counter which will give an output when it is in an overflow condition; therefore, each register acts as a threshold device. Upon one register overflowing and giving an output of that indication, the sample process is stopped and the output of the register is sent to a converter to indicate the direction of the jammer. This is done both for the azimuth and elevation angle of the radar receiver.

Abstract: A shield for shielding against radiation from a nuclear blast. The shield comprised of an aluminum body structure, a tin sheet bonded to the outer surface of the aluminum body structure, a glass filament reinforced epoxy resin matrix composite plastic material wrapped about the tin material and an outer layer of external thermal ablative insulation. The glass filament wrapping of the tin material causes the tin material to act as an effective shielding material by maintaining integrity of the tin when exposed to radiation.

Abstract: A vehicle which can easily be dismantled into transportable units and reassembled readily at the tunnel site is provided. A major advantage of this vehicle is the requirement of low thrust during operation and adaptability to use in short tunnels and tunnels with variable rock formations. With only minor adjustments to the drill head assembly and crawler carriage, it is capable of conforming to variable diameters of tunnel sizes. Pneumatic drills in the drill head assembly are guided along the vehicle's path to cut kerfs into the rock. Fluid activated breaker elements enter the kerfs and break out the ridges of rock through smashing blows. The drill head assembly rotates as the kerf cutting process is repeated. The excavated rock is conveyed to the rear of the vehicle for easy disposal. The drills are capable of boring any type of rock, therefore, it is envisioned that this vehicle can excavate soft through very hard formations.

Abstract: Optics capture and concentrate laser radiation and send it through a gasdynamic window which is formed by supersonic expansion of unseeded hydrogen gas exiting a passageway directly under the opening. Seeded fuel is inserted into the chamber where it is heated by the laser radiation and the energy of the heated gas is converted into kinetic energy of a high velocity by means of a rocket nozzle.

Abstract: Alignment of sync pulses is provided by an automatic selection of a proper ath, which is delayed or not delayed, of the sync pulses. The selection is made on the basis of error criteria. A comparator compares the sync pulses and sends an error signal to a sync pulse adjuster which makes the determination of the path to which a sync pulse is directed.

Abstract: An assembly which is an energy absorbing system for supporting the nose c of a missile in a position extended from the guidance section prior to eject (launch) of the missile. This extended position exposes internal umbilical connectors to permit internal missile components to be connected to external sources of power (electrical, pneumatic, etc.). Gravitational forces during eject (launch) displace the nose cone rearwardly against the guidance section. The assembly controls impact velocity of the nose cone and guidance section during closure thereof. At closure, a smooth aerodynamic surface is formed at the junction of the nose cone and guidance section.

Abstract: The power meter provides an analog output voltage which is proportional to ower for both sine wave excitation and all other excitation types. The circuit of the meter involves the use of electronic multipliers to produce the low-ampere product of voltage and current in real time, and sums the results to produce the total power output representation for all phases.