Abstract: A bus bar having a high distributed capacitance includes plural ceramic plates sandwiched between flat conductors and insulated therefrom by a non-conductive binder. Electrical connectors between the conductors and metallized coatings on the adjacent sides of the plates is established by bridging the binder layers with conductive material which contacts exposed edge portions of the conductors.
Abstract: A system for recording data is disclosed, which relate to lots to be collected, particularly to milk lots to be delivered to a central collecting station. A recorder installed on the collecting vehicle comprises the normally existing data memory and closely adjacent thereto a second memory, which has preferably the same structure and serves to store those data which are required in an analytical laboratory for an analysis of samples taken from the lots as they were collected. These data are recorded in the second memory under the control of a selector. By means of the second memory, a separate data carrier is provided, which is delivered to the analytical laboratory, in which data representing the result of the various analyses are recorded on said data carrier so as to supplement the data originally recorded thereon.
Abstract: The invention relates to a process for preparing a plurality of portions of food in a like plurality of microwave ovens, and to an electronic system in which the process is carried out. The system includes a memory for accepting and storing the time values representing the processing time of respective portions in respective ovens, a clock, and a processor for calculating and selecting the longest of the time values. The processor also counts down the time remaining in the longest time value as clocked off by the clock, and compares, at predetermined intervals, each time value, one at a time, with the time remaining. A respective one of the ovens is turned on when its time value is equal to the time remaining. The processor will also turn off all ovens when the time remaining has reached zero.
Abstract: A radome and the method of manufacture thereof are presented wherein the radome is constructed from a series of rings of fiber reinforced polytetraflouroethylene. The rings are machined from a cold molded PTFE-fiber composite billet and then loaded into a mold cavity. The rings are then subjected to heat and pressure to sinter them together. The resulting structure is machined into its final shape.
Abstract: A sheet of film, for use in recording the results of non-invasive medical tests, is indexed relative to a lens and shutter assembly to permit the serial formation of multiple images on the film. The indexing is accomplished through the use of a transport mechanism which may be independently moved in two mutually transverse directions.
Abstract: Fluid operated time modulated position control mechanisms are operated with a sub-critical carrier frequency. The carrier frequency is selected to be within a band lying between the minimum critical or natural frequency of an actuator system including the control mechanism and the maximum control signal frequency as determined by the system dynamics. The carrier signal is also selected to provide a dither amplitude sufficient to overcome the coulomb friction of the control mechanism and load.
Abstract: A semiautomatic hand gun having a unique take down assembly which allows the slide assembly to be detachably secured to the frame. This take down mechanism comprises a pin which may be removed without tools and which is captured in a disengaged position to prevent loss.
Abstract: A laminated bus bar with rigid discrete dielectric elements sandwiched between flat conductors is assembled with comparative ease by coating the opposed faces of the elements with a low melt point conductive material except in bands adjacent to the edges of the elements. When the conductive material is reflowed to bond the elements to the conductors, there will be no development of short circuits across the edges of the elements.
Abstract: An apparatus for cooling molten material resulting from a nuclear reactor core meltdown is disclosed. The apparatus includes a basin positioned under the reactor which is protected against excessive heat by a star-like array of heat pipes whose evaporator sections are disposed above the pan and whose condenser sections are disposed in a heat sink exterior to the containment building of the reactor. Additionally, the vertical walls of the reactor vessel chamber are similarly protected by an array of heat pipes similarly arranged and provided to intercept the radient energy of the molten core material.
Abstract: Apparatus for automatically recording the rate of fluid absorption of the soil includes three subsystems which may be easily assembled on site. During a test procedure the rate of descent of a float is recorded on a tape by a timer controlled marker.
Abstract: An electrical switch comprising a snap-acting actuator (22) movable with a snap action between two configurations to control the making and breaking of electrical contacts (3, 6), a latching member which, when the actuator blade has snap-acted in one sense to break or make the contacts restrains return movement of a movable contact carrying member (22) (which may be the actuator) to prevent re-making of re-breaking of the contacts until the latching member is positively displaced, the latching member comprising a spring member (7) having an arm (10) defining a portion (18) for restraining return movement of the movable contact carrying member (22), the engaging portion (18) being arranged to move in a direction substantially parallel to the plane of the actuator blade between a latching position and a non-latching position and being biassed towards the latching position, the spring member (7) also having an operating portion (12) at an angle to the arm (10) and movable in a direction generally transverse to s
Abstract: A method for recovering ammonia from spent ammonia-base sulfite pulping liquor includes steam stripping spent ammonia and condensing the resulting vapor to produce a dilute ammonia or ammonium hydroxide solution. This dilute solution is passed through a cation exchange column to produce an ammonium sulfite-ammonium bisulfite solution which is delivered to a sulfur dioxide absorption tower to thereby produce a concentrated ammonia-base sulfite cooking liquor. The residual liquor from the stripping step and the non-condensable gases are burned as fuel and the waste gases from this burning, which contain a small percentage of sulfur dioxide, are delivered to the absorption tower and subsequently discharged to the atmosphere free of sulfur dioxide and ammonia.
Abstract: The invention relates to a mobile dust collector for use in association with mobile equipment. The dust collector is adapted to be mounted on a common platform with the mobile equipment. The dust collector includes a bottom portion and a top detachment portion. Duct means extend from the bottom portion to the equipment for capturing air over and around the equipment.
Abstract: A turbine for the generation of energy from geothermal sources including a reaction water turbine of the radial outflow type and a similar turbine for supersonic expansion of steam or gases. The rotor structure may incorporate an integral separator for removing the liquid and/or solids from the steam and gas before the mixture reaches the turbines.
Abstract: Microwave circuit boards and methods of making microwave circuit boards, the circuit boards having relatively high dielectric constants, excellent moisture resistance, and reduced tendency to incur changes in dimensions after processing. The method comprises blending in a polymer dispersion, a particulate filler material having a high dielectric constant and microfibrous material to form a slurry of polymer, filler, and fiber. A flocculant is added to the slurry to agglomerate the polymer particles, the filler particles, and the microfibers to produce a dough-like material. The dough-like material is eventually formed into a sheet, and is thereafter dried. A conductive foil such as copper is then applied to both sides of the sheet to provide a microwave circuit board.
Abstract: A method and apparatus for determining the residual force or tension in a bolt or stud is presented. The bolt or stud in a previously tightened joint is stressed by the imposition of a pulling force, the resulting strain on the bolt is measured to develop a force-strain relationship, and the measured force-strain relationship is compared to previously determined force-strain relationships for the joint to determine the residual force or tension in the bolt or stud.
Abstract: Apparatus for measuring the contour of a surface without establishing contact therewith includes an energy transmitter movable in at least two directions. When employed in a shaft furnace the transmitter is movable along a longitudinal axis, so as to be either retracted to a protected location where it may be isolated from the furnace environment or extended so as to enable measurements, and is rotatable about the longitudinal axis so that the transmitted energy may be scanned across the surface.
Abstract: A circular knitting machine, especially of body garment knitting type, has drive arrangements for a pair of rotary cam carriers of conventional lay-out involving a motor, drive shafts and upper and lower gears for the respective cam carriers. Instead of mounting the creel with yarn fast with respect to the upper gear there are provided means mounting the creel coaxially with the ring gears and permitting relative angular movement of the creel and the ring gears, at least one drive abutment for engaging the creel to rotate it conjointly with the ring gears and a shock absorber associated with the creel and the ring gears to thereby permit the creel to overrun the ring gears and move away from the drive abutment on stopping the motor and drive shafts.
Abstract: A target game is presented wherein marbles or the like are tossed by contestants at two square or rectangular baskets mounted side-by-side on a wall. The two baskets are positioned above and fully surrounded by a large receptacle which catches any marbles which miss the baskets and the above mentioned wall is an elongated wall of the large receptacle. The lower end of the large receptacle includes a storage bin for marbles and an access door.