Abstract: A method and apparatus are disclosed for making improved grafting joints between plant components, particularly woody plants. Selected plant materials may be grafted one upon another by cutting out two diametrically opposed, longitudinally diagonal sectors from each end of the plant parts to be joined. The sectors are of equal length on each plant part and are joined by slipping the sectored end of one plant part into the cooperating sectored end of the other plant part so that the parts interlock. The joint is then enveloped by tape or the like to seal the joint.Hand tools and semi-automatic machinery are disclosed for sectoring plants in a single operation and include radial cutting elements arranged perpendicularly to one another and adapted to make four simultaneous slits lengthwise and diagonally along the plant simultaneously removing the waste slit sectors.

Abstract: A resilient roller guide assembly is provided for use with sliding drawers in cabinets, bureaus, chests and the like. The assembly includes an angle bracket having a pair of mutually perpendicular legs on each of which is mounted a roller rotatable about an axis parallel to the leg length and extending from one face of the leg. From the opposite face of the leg, at the inner edge thereof, is a lip adapted to seat against the edge of the opening in the cabinet through which the drawer moves. The rollers are of a diameter sufficient to engage and support the drawer at its bottom and along both sides when a unit is mounted at each lower corner of the drawer opening.

Abstract: Biofeedback training of a subject may be achieved by monitoring the skin potential response of the subject and by shaping the monitored response so that a feedback signal is generated only if the response exceeds pre-established upper and lower limits which may be selectively increased or decreased. Biofeedback apparatus for implementing this technique includes electrodes for sensing the skin potential, an amplifier for amplifying the signal and feeding the signal into a pair of variable comparators which provide output when the response exceeds preset upper and lower limits. The outputs, in turn, provide a feedback signal either audio or visual, or to serve as inputs to auxiliary instrumentation. No feedback signal is produced as long as the monitored signal is within the selected limits. The magnitude of the responses may be quantified to the extent that they exceed the preset levels. The audio feedback signals may be recorded on a common audio cassette recorder.

Abstract: A compact molded case containing an epoxied surge suppressor circuit with extending male prongs and female sockets for interconnection between a wall outlet and a power cord for electronic equipment. The suppressor circuit has a varistor network and associated pico fuses for transient surge suppression. An indicator connected to the suppressor circuit provides an indication of circuit status.

Abstract: A running textile web that has been subjected to soaking by a liquid such as a scouring solvent is carried between a suction box located adjacent one face of the web and a source of pressurized and relatively dry heated gas adjacent the other face thereof and opposite the suction box. The heated gas passes through the web and is drawn into the suction box, enhancing the amount of liquid removed at this stage and presenting the web into a drying stage with less entrained liquid than if the web were subject to the action of the suction box only. The amount of mechanical mist is kept to minimum within a closed scouring range by means of a closed loop between the suction box and a return conduit provided with a trap containing a batt of metallic wool. The liquid discharge from nozzles employed to uncurl the edges of the web is directed against shields also containing a batt of metallic wool to reduce bouncing, noise and mist generation.

Abstract: A capsule is provided in which dental amalgam may be mixed, and the capsule itself connected to a dispenser for direct application into a cavity. The capsule includes a cylindrical body with a longitudinal offset passage holding a quantity of silver fillings or the like. End caps are removably mounted to each end of the body portion, with one cap formed with a socket having a pestle adapted to move in and out of the passage, while the other cap is provided with a pair of sockets, one with a pestle and one with a charge of mercury. The second cap is rotatable to different stop positions, first to align the cavity with the mercury to mix it with the silver and then to align the pestle cavity with the passage for mixing. The dispenser includes a detachable nozzle tip and a plunger engageable at opposite ends of the center portion for dispensing the mixed amalgam.

Abstract: A karate practice board for subjection to hand and foot strikes, simulates frangibility and permits reassembly by means of a multi-component structure that is characterized by a special tongue and groove relationship.The practice board is made of first and second parts, the parts being along a longitudinal edge thereof by a tongue and groove joint. The first part having a tongue and groove configuration along one of its edges and the second part having a tongue and groove configuration along one of its edges. The configuration of the parts are seen to be a mirror image of each other when the parts are joined by the configuration to form the board. The strength of the material of the board is such that shattering of the parts along the mating edge is avoided when the parts are separated as a result of impact by a user.

Abstract: Structural and decorative unitary boards which may be laminated with a veneer are given a relief appearance by forming a rabbeted groove in the front face thereof, preferably rectangular in outline, and mounting therein from the front, tapered laminated strips having a thickness along one edge slightly less than the depth of the groove and the opposite narrow edge being substantially flush with the base of the groove. The entire panel thus presents a relief configuration in which substantially all of the exposed surfaces may be covered by the veneer. The panels may be used for doors used in kitchen cabinets, bathroom vanities and the like.

Abstract: A pulsed electron beam generator produces a short duration pulse of electrons in the form of a directed beam for thermal processing of a semiconductor device, which is positioned in a pulsed electron beam chamber so that the propagating electron beam impacts upon the device surface in selected regions of the device that are to be processed. Energy deposited by the impacting electron pulse momentarily elevates the temperature of the selected regions above threshold processing temperatures for rapid, effective annealing, sintering or other thermal processing. The characteristics of the electron beam pulse are such that only those surface vicinity regions to be processed are elevated to a high temperature, the remaining mass of the semiconductor device not being subjected to unnecessary or undesirable high temperature exposure.

Abstract: Apparatus for automatically dialling telephone numbers and a card indicative of the number to be called, in which the card is provided with three tracks. The first track is a continuous rectilinear sawtooth track and the second track is parallel thereto and has formed therein cavities, the length of which are indicative of the number to be called. The third track is associated with the second track and is used to stop the card at a particular point. In the apparatus, feelers are provided to co-operate with each track and the card is pushed into the apparatus by a user and will return at a uniform speed. A first feeler can co-operate with the first track to produce a train of impulses only when a second feeler engages in a cavity of the second track, so that the length of the train of impulses is determined by the length of a cavity of the second track. These cavity lengths are indication of the number to be called.

Abstract: A solar control film, for application to window glass by the consumer with minimum or no preparation, comprises a vapor deposited aluminum coat, which partially transmits light, interposed between a vinyl stratum and a polyester stratum, either of which contains an ultraviolet inhibitor and each of which is self supporting. This film is adhered by pressing the surface of its vinyl stratum against the window glass in either dry or wet condition.

Abstract: A cryogenic freezer with an enclosed chamber into which a freezing fluid is directed through selectively controlled nozzles towards a propeller fan and baffle assemblage that is coaxial with a rotating drum having graduated perforations distributed about its periphery. The drum carries an endless belt which travels in a spiral path about the periphery of the drum and which defines tiers for carrying products to be processed. The freezing fluid passing through the nozzles is directed towards the discharge side of the propeller fan and is guided to the outside perimeter of the moving belt by the baffles. The freezing fluid passes across the product tiers and through the graduated perforations into the center of the drum where it is drawn upwardly by the fan and mixed with incoming freezing fluid.

Abstract: An enclosure with barriers hung from tension cables that are suspended from corner supports, each of which includes a pair of compression members and a tensile member. The compression members of each pair are disposed obliquely with respect to their associated tensile member which is disposed vertically, the compression members and tensile member of each corner support converge at an apex from which the tension cable is suspended. One compression member of each corner support lies in a plane that is parallel to one side of the enclosure and the other compression members of that corner support lies in a plane that is parallel to an adjacent side of the enclosure, the associated tensile member being at the intersection of the two planes.

Abstract: An evacuated enclosure in the form of a cylindrical cavity having a dielectric located therein defines a dielectric guide for transporting an electron beam introduced into the cavity. The dielectric, which is disposed about the cavity wall, is operative to trap the charge associated with normal vacuum expansion of the electron beam. The trapped charge, in cases where the injected electron beam is not space charge limited, modifies the electric fields within the cavity in such a way as to provide focusing forces on the electron beam propogating through the cavity, the focusing forces being sufficient to guide a major portion of the beam through the enclosure without attenuation. Within the injected beam is space charge limited, the trapped charge induces an electrical discharge -- either surface flashover or volume puncture of the dielectric -- which liberates gaseous material.

Abstract: An apparatus using an abrasive belt is employed for sharpening ice skates quickly and accurately to any one of a variety of different hollow ground curvatures. The abrasive belt is mounted on pulleys and driven at a high speed across a changeable head which shapes the belt to the desired curvature for grinding a skate edge moved longitudinally thereagainst. The skate is mounted by means of a clamp so as to present the blade edge in a precise grinding position with respect to the belt and the head. The clamp is slidably mounted on the top of a carriage moveable along a guideway parallel to the head, whereby a blade edge may be brought to bear in a movement corresponding to the profile of the blade edge. The head may be changed to different positions in order to present different curvatures in the belt, depending upon the radius of curvature desired in a skate edge.

Abstract: Apparatus is provided for automatically lidding drinking cups with a film of thermoplastic sheet material. The apparatus includes a cup support adapted to raise a cup placed thereon into contact with a leading section of thermoplastic film drawn from a roll and to hold the cup while a reciprocating heated platen heat seals the film section against the cup rim. The cup support then lowers the lidded cup while a film advance mechanism draws out a fresh section of film into sealing position. A control system is included with the apparatus for operating the apparatus in predetermined timed sequence.

Abstract: A tapered or twisted fiber optic bundle having a unidirectional diffuser at an output face thereof defines a fiber optic bundle beam expander. In a viewing system, such a beam expander is provided at the output of an image intensifier tube for unidirectionally spreading rays of an amplified image in a horizontal direction for biocular viewing.

Abstract: Skates employing balls as the primary rolling elements may be used in lieu of roller skates for street hockey or indoors on wood floors, concrete or other hard surfaces. In the preferred form the skate includes two balls, preferably of semi-hardened rubber, metal, wood, plastic or the like, one in the front and one at the rear of the skate. Each ball is supported by a set of rolling supports which allow the ball to rotate freely in a forward or backward direction but inhibits rotation of the ball in other directions. The supports include at least two transverse shafts on which are mounted spaced rollers or rings of different diameters and contoured to mate with the upper portion of the ball. The different size rollers are independently rotatable on the shaft to compensate for the different surface speeds of the ball as it rolls forwards or backwards.

Abstract: An electron gun assembly generates an accelerated and sharply focused electron beam which is deflected in a predetermined path to impinge upon an extended split anode structure in a selected scanning pattern with approximately half the beam current impinging on each half of the split anode. A signal proportional to the difference between the two currents from each half of the split anode provides feedback control to the beam deflection system for constraining the beam to follow the fissure of the split anode. X-rays which are generated at the point of beam impingement on the split anode constitute a moving source of X-rays as the point of beam impingement travels in the selected pattern along the anode.

Abstract: A security film for shatter-proofing windows comprises a polyurethane stratum interposed between a pair of polyester strata, each of which is self supporting, the film being bonded to the inner face of the window by a pressure sensitive adhesive.