Abstract: A memory cell, having a doped amorphous silicon layer, is formed on a thin layer of silicon alloy which is on a single crystal silicon substrate. The cell is programmed by applying a voltage between a surface contact and the substrate to cause a crystal column to form in the amorphous layer between the substrate and the contact by solid-phase epitaxial growth. A diode is formed between the contact and the substrate by the selection of impurity levels and conductivity type of the amorphous layer and substrate and the selection of the silicon alloy. The cross-sectional area of the column is selectable to provide a multi storage level cell.

Abstract: A suspension arm is formed from a single wire having a coined U-shaped portion, a pair of wire portions extending divergently from the legs of the U-shaped portion and a coined annulus on the end of each wire portion. The axis of at least one of the wire portions is oblique to the plane of the coined U-shaped portion. The axis of the coined annuli are colinear and the plane of each coined annuli is at an angle to the plane of the coined U-shaped portion.A method of fabricating the wire suspension arm using cold working begins with upsetting the ends of the wire and proceeds with bending the wire into a U-shape, bending the wire to form divergent portions, at least one wire portion being oblique to the plane of the U, and bending the ends to be parallel to each other. The ends are coined and the bight of the U is coined.

Abstract: A narrow woven stretch fabric is formed from bare elastomeric warp threads separated by high shrink warp threads and from a high shrink weft thread. The edge elastomeric warp threads are loosely wrapped with heat set yarn. These edge threads, which are under the same tension as the other elastomeric warp threads, are wrapped between the supply and the loom. The weft thread is interwoven at a low weft per inch and the fabric is heat treated to shrink the non-elastic high shrink threads and corrugate the elastomeric threads without heat setting. The wrapping device and the surface feed rollers for the elastomeric threads are driven by the loom drive at appropriate speeds.

Abstract: Feeder apparatus in which bulk material, in fibrous or stringy form, is delivered onto an endless belt by means of a rotating rake. The weight of the material on the belt is sensed by a transducer which effects the operation of a control system for automatically adjusting the belt speed to maintain a constant discharge of the material from an end of the belt. Excess material deposited on the belt is returned to the hopper by the rotating rake.

Abstract: A buffer having a single input and a pair of outputs providing three unambiguous logic output states including a first output connected directly to the input and a second output connected to the junction of a common gate configured FET and an impedance. The input is also connected to the source and body of the FET and a voltage source is connected to the impedance. The first output varies with the input for a first polarity input signal and the second output varies with the input for the opposite polarity input signal.

Abstract: Fuel consumption is estimated by counting the number of cycles of operation of the cylinders of an internal combustion engine and multiplying by a constant representing the fuel consumed for each cycle. Rate of consumption is measured relative to time and distance. The cycles are counted by sensing the ignition spark or revolution of the distributor rotor.

Abstract: A crack free layer of GaP is epitaxially deposited on a silicon phosphide surface of a silicon substrate having an (III) orientation. The silicon substrate is prebaked on a carbide coated susceptor with palladium diffused hydrogen at about 1200.degree. C. and pretreated with phosphine at about 1140.degree. C. to form the silicon phosphide surface. The temperature is lowered to 800.degree.-900.degree. C. in the presence of phosphine and trimethyl gallium is introduced at a ratio of 1 to 10 with the phosphine. Cracks in the gallium phosphide are prevented by roughing the bottom non-phosphine. Cracks in the silicon substrate such that the roughed surface is under compressive stress and induces tensile stress on the phosphided surface to reduce the compressive stress reduced by gallium phosphide layer when the substrate is annealed at about 1200.degree. C.

Abstract: A fireplace support bracket having an upright, an adjustable slide having a greater inner effective diameter than the outer effective diameter of the upright, a locking surface extending down from the slide parallel to the upright, and a pin or aperture on the slide to receive a grate whose weight locks the locking surface against the upright in any selected position. The upright includes a pair of pins for mounting the bracket to the hinges of a fireplace.

Abstract: A screen having front, two side and bottom faces wherein the horizontal and vertical edges of the side faces form an angle greater than ninety degrees.

Abstract: An amplifier for use as on the output buffer for semiconductor memories including a fusible element added to a push-pull configuration to allow permanent conversion to an open collector configuration by blowing the fusible element or including a semiconductor element added to a push-pull configuration to cause it to have an open collector configuration and being permanently converted to a push-pull configuration by shorting the semiconductor element.

Abstract: An unbalanced bistable, memory cell operable as a read/write and read only memory having a first switch for disconnecting the cell from a power supply and a second switch for interconnecting the information storage nodes in response to a power down signal to discharge the nodes and allow the memory cell to store a preselected bit of information determined by the unbalance after reconnection of the power supply and disconnection of the nodes upon the absence of the power down signal.

Abstract: A free-standing unit for heating air in a U-shaped channel surrounding a fire box having a pair of spaced vertical vents for directing the heated forced air to converge in front of the fire box opening to limit air flow towards said openings. Mesh in the vertical vents directs the forced air downward to be combined with the hot forced air from a bottom horizontal vent. A baffle plate depending from the top of the fire-box adjacent the flue port and an opening along the top of the doors ignite the gases adjacent the top and directs some gases back into the fire. By forcing heated air at a low level and drawing cool air from a high level, the air being heated is of a uniform temperature. A hood extending along the top edge of the fire box opening diverts exiting gases back into the fire box. A thermostatically controlled blower creates the forced air and cools the fire box walls.

Abstract: A building constructed from free standing precast stress bearing will modules by placing the elements in a trench, pouring a flowable material therein, and allowing the flowable material to set. Metallic elements extending from the wall into a recess in the bottom of the wall interconnect with the flowable material in the trench to form an integral unit of the set flowable material and the wall module. For subsequent stories, the free standing precast stress bearing wall modules include a pocket in their lateral wall to provide access to the interconnection for the fastening of a plate embedded adjacent the bottom thereof and a rib extending from the top of a lower building element.

Abstract: A system for controlling a plurality of variable rate consuming units using a unique sequence to optimize the number of units on and the total consumption of the units relative to a target by increasing and decreasing total consumption from a status position in said sequence in response to a comparison of the total consumption of all units with a target and to a comparison of the total consumption with the target minus the differential consumption to the next step from the status position in the unique sequence. The units status and the results of the comparisons address a device storing said unique sequence to provide consumption requested status which may be overridden by a cycling means to provide a minimum and maximum off time and minimum on time demand command status for demand controllable units. A real time clock addresses a storage device to provide command status for time controllable units.

Abstract: An article of clothing having at least one layer of a fabric or a fabric having an aramid yarn knitted or woven with a heat settable yarn. The fabric is heated to set the heat settable yarn thereby dimensionally stabilizing the fabric without bonding. The fabric may be a scrim or a lining having a facing material laminated thereon.

Abstract: A bag of tubular form closed at one end and partially closed at the other end by a first rear wall portion being folded over and sealed to a front wall. The opening between a second rear wall portion and opposed front wall forms the valve which is sealed after filling by folding the longitudinally extending second rear wall portion over and sealing it to the opposed front wall using the folded first rear wall portion as a reference. Adjacent lateral termination of the plural ply rear wall portions are oppositely stepped so as to overlap when sealed to the front wall.

Abstract: A control circuit for a stepping motor is provided which rotates the motor armature in such a manner as to minimize motor resonance while not appreciably reducing the motor torque at high speeds. The circuit includes means for receiving an input signal indicative of the desired direction and rate of motor travel and means response to the input signal for developing a position command signal which is a multi-step function having a maximum and a minimum level and wherein all steps are of equal amplitude but wherein at least one step between said maximum and minimum levels has a duration which is unequal to that of another step. Finally, the circuit includes means responsive to the position command signal for developing an energization signal for the stepping motor.

Abstract: An integrated circuit having a substrate of a first conductivity type, a first layer of opposite conductivity type thereon and a second layer of said first conductivity type inversely graded on said first layer and including a heavily doped region adjacent the surface opposite said first layer. A ring of said opposite conductivity type extends through said second layer and partially into said first layer and a diffused region of said opposite conductivity type is in the surface of said second layer.The method of fabrication includes epitaxially forming said first layer on said substrate, expitaxially forming said second layer on said first layer having a decreasing impurity concentration from the P-N junction to the surface, forming said ring, nonselectively diffusing to increase the impurity concentration at the area adjacent the surface of said second layer and selectively diffusing to form said diffused surface region.

Abstract: Complementary MOS devices having spaced guard rings are fabricated by applying an oxide layer to an N substrate with an opening for doping P-type impurities to form a well, applying a nitride layer over a portion of the oxide and of the well portions, doping the area in the well between the nitride and the oxide to form P-type guard rings, masking the well and adjacent portion of the oxide, doping the area between the mask and the exposed nitride layer to form N-type guard rings and exposing the substrate to an oxidizing atmosphere to oxidize the substrate except where covered by the nitride layer. The nitride layer is removed and standard device processing is used to form complementary MOS in the areas previously covered by the nitride.

Abstract: A water squirt toy apparatus including a combination of a water squirt toy and a special filling valve which function together cooperatively.The water squirt toy includes a resiliently expansible tubular member serving as a water reservoir and encased within a rigid tubular support member, and a manually operated, lever-type normally closed valve mechanism operatively associated with the expansible member for permitting or preventing fluid discharge therefrom by compressing or pinching the same. The forward end of the expansible member is fixedly, but removably, secured to a discharge opening. The filling valve is particularly structured for fluidically mating with a conventional hose bib or hose as well as with the discharge opening in order to permit easy and rapid filling and refilling of the expansible member with water. The discharge opening may also mate directly with the hose bib or hose without the special valve.