Abstract: A remote control arrangement for a communication system which transmits intelligence occurring within a band of frequencies f.sub.b between first and second remotely located stations is described. The remote control arrangement which is adapted to activate an element at the first station comprises an encoder located at the second station and a decoder located at the first station. The encoder provides a control signal of selectively adjustable frequency f.sub.e and period T.sub.e. The decoder includes means for detecting a control signal of corresponding frequency f.sub.e and period T.sub.e and for discriminating against signals of differing frequency and period.

Abstract: A writing instrument such as a pen having a nib and a shaft for hand-held use. The shaft is formed with three elongated concave indentations in a generally equilateral triangular configuration with rounded vertices and at least one concave side as seen in cross section in the region normally grasped which form sockets to receive the thumb, index finger and middle finger respectively so as to provide a firm, comfortable and relaxed grasp ensuring complete control of the instrument and virtually eliminating writing tension. The nib is adjustable positionable relative to the shaft axis to provide a nib edge alignment at an angle to the pen's horizontal axis as defined by the three concave indentations, thus ensuring an optimum angle of contact between the nib and a writing surface, regardless of whether the pen is used right or left-handed, for producing attractive pleasing writing.

Abstract: An internal combustion engine having combustion chamber walls coated with a thin ceramic coating with a specific heat of less than 0.12 BTU/lb/.degree. F, a thermal conductivity of less than 11 BTU/HR/FT/.degree. F and a thickness of 0.2 to 1 mil so as to reduce heat losses and increase efficiency of the engine.

Abstract: A method of forming a nozzle outlet in the stretchable, flexible wall for a container by providing rigid inner and outer sleeves adapted to mate together in taper-interlocked relationship by stretching a portion of the wall around the inner sleeve and becoming sandwiched between the mated sleeves. The inner sleeve has an outlet passage extending therethrough and has an exterior surface which tapers at a small angle, the outer sleeve having an interior surface tapering at a corresponding angle so the sleeves will engage together in a wedging-locking relationship with the stretched wall portion sandwiched and protected between them.

Abstract: The invention relates to a tightening and releasing tool of small dimensions, allowing considerable reduction in the force to be applied thereto to perform tightening and releasing operations.

Abstract: A circuit is provided for providing a regulated d.c. output of a substantially high output current magnitude from an unregulated single or polyphase a.c. input source. Regulation is provided by a single feedback circuit interacting with a plurality of ferroresonant transformers connected in parallel to a single phase source, singly on each phase or a polyphase source, or interconnected in the known Scott T connection on a three phase source. Regulation is accomplished with thyristor switches which are synchronized with the input phase of each transformer.

Abstract: Continuous casting methods and apparatus are described wherein the flexible casting belts in twin-belt machines having two or more main rolls in each belt carriage are sensed by mechanical probes, and belt temperatures are controllably elevated prior to contact with the molten metal to improve the casting conditions and the operation of the thin flexible casting belts; the temperature elevation preferably being relatively gradual may be carried out while the travelling belts are approaching the nip rolls or while the belts are in contact with the nip rolls, or both. Zone control of belt pre-heating is disclosed, and control of the coolant streams issuing from the curved nip roll tubes by use of fingernail-like extenders may be provided to aid in pre-heating the belts and in controlling their operation. Intensive infra-red heaters are shown directed at close range toward the casting surfaces of the belts, these heaters serving also to cure and dry any coating material on the belts.

Abstract: A chuck with key tightening, for a machine such as an electric drilling machine, comprising gripping means for gripping a tool such as jaws, which are guided in a translatory movement in grooves which are inclined with respect to the longitudinal axis of the chuck and which are machined in the chuck body, the chuck being characterized in that it comprises a toothed ring to which a tightening nut is connected, the nut cooperating with the threads of the gripping means, the toothed ring being provided in the region of its teeth with at least one retaining region whose internal diameter is smaller than the external diameter of the tightening nut, at least one component or at least one group of components having the same function, movable with respect to the chuck body, that is to say, the jaws and/or the nut and/or the toothed ring, being of sintered metal.

Abstract: A folder for laundered textile articles, particularly articles such as towels, pillowcases, etc., having an oscillatable folding blade which depends or pivots from a location above the folding rolls. The folder can feed the folded articles to a stacker which uses sloping pivoted plates instead of a conveyor, the plates being split crosswise of the travel of the folded articles thereover.

Abstract: An electric heating furnace which includes a conductive electric resistance heating element strip mounted within a chamber defined by walls of porous refractory insulating material. Terminal or mounting pins extend through the wall of insulating material and the heating strip are secured thereby. A sleeve of non-porous refractory material surrounds the portion of the pin within the wall of insulating material for electrically insulating the pin from the porous refractory wall material which may have a conductive layer of carbon build up therein under certain heat treating conditions.

Abstract: Variable closed position fuel and air flow control for vehicles with automatic transmission for improving fuel consumption efficiency of a vehicular internal combustion engine, without disabling or circumventing any engine function, accessory, or emission control device, by causing the engine to idle at substantially constant speed regardless of changes in the engine load caused by accessories such as automatic transmission, air conditioning, power steering and the like. This variable closed position fuel and air flow control device is adapted to be easily retrofitted to existing engines and includes a vacuum actuator connected to be responsive to changes in pressure in the fuel and air flow induction passage for the engine. A cam is operatively associated with the primary idle stop of the antidieseling solenoid and the throttle control arm and a linkage transmits the motion of the actuator to the cam.

Abstract: An alarm system for warning of unbalance or failure of one or more phases of a multi-phase load circuit which is convenient and practical to use even where the load circuit is drawing a large current and where the flow of power to the load may be controlled by various devices, said alarm system including a three-phase resistance bridge circuit with a phantom neutral point at the common juncture of three similar resistances connected in a Y-pattern and each shunted across a secondary winding of transformers having magnetic cores encircling the power leads to the load circuit and with the outer terminals of these resistors connected through resistance elements to the adjustable taps of three potentiometers included in the respective legs of a second Y pattern having the outer ends of these legs connected to the respective load phases for defining a second neutral point at their common junction.

Abstract: A spring-balanced wall-type bed is pivotable between a vertical position into a wall recess and a horizontal position out of the wall recess in conjunction with a wall panel attached to the bottom of the bed so as to function as a closure for the wall recess when the bed is swung into the recess in its vertical position. In its horizontal position, the bed has unfolded legs having rollers thereon which bear against the wall panel which rests upon the floor. The bed and panel are maintained in contact by the springs so as to be pivotable together.

Abstract: The concentrations of hyperfine particles in a fluid are monitored by flowing a predetermined quantity of the particle-containing fluid over a substrate in the presence of a force field which "collects" the particles onto the substrate. The particles may be deposited on the substrate according to size, so that one can readily ascertain not only the particle concentration in the fluid, but the size distribution of the particles as well. This technique greatly concentrates the particles so that one can usually detect and monitor materials having extremely small particulate concentrations in the fluid from which they are collected.

Abstract: An apparatus for continuously gauging containers has a feed screw to positively move the containers to be gauged along a straight line beneath an endless chain upon which are mounted a plurality of gauging devices. The endless chain has a lower reach spaced above the containers and an upper reach vertically spaced above the lower reach. Each gauging device has an axially movable "go-no go" gauge therein, and there is a horizontally movable reject pin on the gauge. The pin is moved horizontally to a reject position when the gauge indicates "no go" and the pin is then returned to its normal position before the gauges are moved to the beginning of the first or lower reach. At the end of the lower reach, each gauge is retracted and then extended as each gauge is moved into the beginning of the lower reach.

Abstract: A pneumatically operated stapling apparatus and method for driving a staple into a workpiece whenever the workpiece is moved into a stapling position between a staple driver and a backing member. The method and apparatus are particularly suited for stapling difficult to handle workpieces of the type including a panel and a sheet of flexible material to be mounted thereon, and the method and apparatus are able to advantageously use a pneumatic stapling gun of a known type having a staple driving mechanism controlled by a valve plunger positionable either to advance the staple driver toward the backing member, or to retract the staple driver.

Abstract: A meter panel is formed from one or more meter modules, each of which has a plurality of horizontal line buses extending therethrough with the ends of the line buses being connectable to corresponding line buses in an adjacent meter module. Each meter module comprises an enclosure and a meter section removably mounted into an opening in the front face of the enclosure. The meter section has a plurality of vertical buses which are electrically connectable to horizontal line buses. The meter section has meter sockets therein with each socket having a plurality of electrical contacts into which meters may be plugged.

Abstract: A central time-shared data processing system organized for character analysis and coupled to a number of remote document scanning stations each including a drum document feed, the drum being rotatable in small incremental steps, and means operable between steps for scanning the document along a path parallel to a line of characters on the document to produce data identifying graphic figures for analysis by the central processing system.

Abstract: Apparatus for creating and maintaining an ice slab for skating purposes, or an ice chute for a toboggan slide, or for maintaining a layer of snow for skiing. The apparatus includes pluralities of small diameter flexible plastic tubes arranged in grids in portable mats with the tubes placed close to one another and arranged with each input or supply tube portion closely adjacent to an outlet or return tube portion providing an advantageous uniform temperature effect at a small distance above the tubes. A low temperature anti-freeze liquid is pumped through the tubes to provide the desired uniform cooling effect, and the portable mats each include a pair of sub-headers which can conveniently be coupled together with main headers to form a large grid the size of an ice skating rink, or a ski slope.

Abstract: Luminous board designed specially to resist inclement weather and in particular strong gusts of wind, this board being constituted by an open-work framework in the form of a case of which at least one longitudinal wall is formed by slats illuminated from inside the case, said framework being of the open-work type and the support slats being contiguous in a vertical plane to form a continuous wall preventing the diffusion of luminous rays toward the exterior, the slats in addition being spaced out laterally with respect to one another to form between them communication interstices allowing the wind and rain water to pass through the board, both horizontally and vertically.