Abstract: Apparatus for manufacturing commutators, especially for small electric motors. Commutator segments are separately inserted into a mold intermediary plate. The segments are inelastically deformed by a coaxially inserted tool before the molding process. The formation of webs of the injected plastic body material between commutator segments is avoided.

Abstract: A compact resistor device comprises a body of ceramic material of positive temperature coefficient of resistivity having a large number of passages extending through the body between opposite ends of the body, thereby forming very thin webs of the resistor material between adjacent passages. Coatings are formed on the resistor material along the inner walls of the passages to serve as ohmic contacts. The coatings in alternate passages are connected together at one end of the resistor device and the coatings in the other passages are connected together at the opposite end of the device to serve as device terminals. When the device terminals are connected to a power source, current flows through very thin webs of resistor material between ohmic contacts in adjacent body passages. The resistor device is particularly useful in current limiting applications requiring low, room-temperature resistance and in heat-exchanger applications where a fluid to be heated is directed through the passages.

Abstract: A tube guide for guiding replacement heat exchanger tubes into proper position within a tube sheet of a steam generator and an extractor tool for engaging the tube guide for extracting it from the tube once the tube is properly positioned.

Abstract: Apparatus for collapsing steam tubes for removal from a steam boiler includes a plurality of gripping arms for engaging the end of a steam tube in the wall of a steam boiler. The arms are mounted about a central axis for pivotal movement of the distal ends thereof toward and away from the steam tube. The tube is engaged by gripping fingers at the distal end of the arms for engaging the steam tube between the wall of the boiler and the flared end of the tube. The arms are pivoted inwardly toward the central axis by the camming action of a plate through which the arms extend. The plate bears against the arms and cams them toward the central axis. The plate is moved by an actuator mounted on a fluid driven piston within a cylinder.

Abstract: A field termination tool for electrical connectors includes a connector support which is positioned between a pair of rotatably mounted insertion arms. Each of the insertion arms includes a multiblade insertion rod for engaging and pressing insulated conductors into respective insulation-piercing contact portions carried by a supported electrical connector. The connector support is constructed as a one-piece comb structure, preferably molded from glass-filled thermoplastic material with metal conductor cutting strips molded in, which is releasably engageable with the frame of the termination tool, and likewise releasably engageable with a bench-mounted support so that electrical connectors can be positioned in the comb structure and have the insulated conductors aligned with respective insulation-piercing contact portions at a point remote from the insertion tool. An insertion control mechanism takes two forms.

Abstract: This invention relates to an automatic device for loading cassettes with roll films, comprising a magazine for roll films, a magazine for cassettes, respective feed devices with separator units for the roll films and the cassettes, a film loading device and a conveying means for carrying off filled cassettes, wherein the film loading device comprises a channel with guides and is arranged along the path of descent of the roll film. A lowerable positioning means is located beneath the channel for the lower cassette section and a pivotable lever with a suction device for handling the upper section is attached to the positioning means.

Abstract: Discs having narrow, sharp-edge slots are orbited so that their slot edges undergo a slicing motion.

Abstract: A razor in which a single edge razor blade is received in a blade platform member which member functions in the manner of a trap door, with the platform member in a first operative position holding the blade urged against blade stops in an operative shaving position, but which member can be moved to a second position in which the blade is released for removal from the razor.

Abstract: A grooving tool has a support provided with a handle formed on its lower surface with a substantially flat sliding face and having a pair of generally parallel slots opening at this face and extending in a predetermined direction. A blade is secured in each of the two slots with portions of the blades extending beyond the face and the cutting edges of the blades forming a vertex in projection in the predetermined direction on a plane perpendicular to this direction. The parts of the support forming the lower surface can be displaceable relative to the blades to vary the spacing between the vertex and the surface for a different depth of cut. The tool can be drawn along a workpiece such as a board of insulating material so as to cut in it a very neat groove by excising a strip which may be of triangular section if the blades are planar or of semicircular section if the blades have curved lower ends.

Abstract: A knife comprises a tension rod insertable into an opening extending through a handle, and a bolt at one end of the handle and in threaded engagement with the tension rod for retaining a replaceable blade at the other end of the handle. The tension rod comprises two elongate parallel rod portions of rigid material, one of which is provided with pins engageable with holes in the blade for retaining the blade between adjacent ends of the rod portions. These ends of the rod portions are formed with at least one wedge surface for co-operation with a corresponding wedge surface on the handle. This knife construction facilitates cleaning, requires few parts and enables the blade and the tension rod to be readily withdrawn from the handle.

Abstract: An implant for fixing an artificial replacement tooth to a jaw bone comprises a post for firmly holding the replacement tooth and at least two hollow cylindrical bodies. The bodies have mutually parallel axes, are rigidly connected to the post and open at one axial end. The cylindrical wall of each body is intended to be inserted into the jaw bone and is provided with means defining passages through which the jaw bone can grow to secure the implant to the jaw. A group of teeth may be fixed to the jaw by the use of a bridge and two or more implants.

Abstract: A method and composition for the use of a cyanoacrylate resin and a silane-treated inorganic powder in direct bonding mount/bracket structures to teeth and other dental applications. The method and composition inhibit caries formation about the tooth structure interface and the adhesive is easily removed.

Abstract: An orthodontic appliance for covering the outer surfaces of a light wire bracket and/or for securing an archwire thereto, which includes a body of tooth colored plastic material having means for detachably securing the appliance to a bracket, and being structured to substantially cover the faces of the bracket so that none are visible from the labial side.

Abstract: A filler for an .alpha.-cyanoacrylate dental material comprising a silica powder coated with at least one solid catalyst having a weak catalytic activity to the .alpha.-cyanoacrylate. Solid catalysts include amino acids and acid-amide compounds. The dental material is prepared by mixing an .alpha.-cyanoacrylate with the filler. The mixture is applied to the tooth and a setter composition comprising a basic amine compound having a strong catalytic activity to the .alpha.-cyanoacrylate is applied to cure the dental material.

Abstract: A length-measuring instrument having at least two tubes which are telescopically extensible. Each of the tubes is provided with a scale graduation arranged so that the scale graduation on an inner tube proceeds numerically in a direction opposite to the scale graduation on an outer one of the tubes. A fixing device acts in any position of the tubes and functions as an automatic clamp having two spring-loaded clamping pins passing through the outer one of the tubes and arranged in an inclined position. These clamping pins rest in each fixed position of the tubes, against an upper side of the inner tube carrying the scale graduation. The clamping effect may be released only by applying external force to the clamp.

Abstract: In certain wheel alignment measuring apparatus, a fixture is clamped to the rim of a wheel and an alignment sensor is pendulously mounted upon the fixture so that as the wheel is rotated the sensor will not rotate with the fixture. However, since the plane of the fixture is not necessarily parallel to the plane of the wheel the sensor may oscillate relative to the ground surface as the wheel is rotated-a condition known as "runout" which results in sensor reading errors. This is corrected by rotating the fixture to three separate rotative positions and recording the sensor readings at each such position. Circuitry is provided for determining the true alignment of the wheel by calculating the amount of the runout error at the final rotative position of the wheel and correcting the sensor reading by this amount.

Abstract: A gyrocompass comprises a gyroscopic element having a stabilizing gyro with a relatively heavy rotor rigidly secured to a driving shaft and a control gyro with a rotor of lower inertia mounted on the same driving shaft as a free rotor gyro. A case enclosing the gyroscopic element and a drive motor is mounted in a vehicle with the spin axis in the north south plane in gimbals with a nominally vertical outer axis and an inner or tilt axis in the east-west plane. The stabilizing gyro is slaved to the control gyro by means of signals from pick-offs associated with the latter so as to zeroise misalignment, and the tilt gimbal is pendulous to provide a gravity reference, so that the azimuth misalignment signal between the gyros generates an opposing tilt torquer current which is a measure of the gyro tilt angle.

Abstract: This invention involves a novel process for freeze-drying enzymes.

Abstract: A method of drying a refractory slurry layer deposited on a mold pattern (10) formed of a thermally fusible material having low heatability by subjection to microwave energy (E), to form a shell mold. The mold pattern (10) is coated with a slurry layer and is subjected to microwave energy (E) sufficient to heat the refractory slurry. A portion of the liquid phase of the heated slurry is withdrawn while concurrently cooling the slurry and mold pattern to maintain the mold pattern at a temperature subjacent the fusion temperature of the mold pattern material. The mold pattern (10) may be recoated, resubjected concurrently to microwave energy (E) and withdrawal of the liquid phase of the slurry until the slurry is effectively dried in the mold pattern while effectively preventing undesirable thermal distortion of the mold pattern.

Abstract: The present invention provides a method of drying flat material, particularly laundry or washing, within a drying cabinet wherein air is aspirated from the exterior, compressed and heated, passes through the drying cabinet with the material disposed therein, and thereafter exhausted, with the drying air flowing against said material from the one side of the interior of said cabinet while being directed against the edges of said material, and with the air being discharged at the opposite side of the interior of said cabinet, whereupon the drying air is cooled in a condenser and, finally, either exhausted from the cabinet or re-used for drying after having been heated again, as well as a drying cabinet for carrying out such method and including improved suspension means of the rods or bars from which the laundry is suspended.

Abstract: Arrangement toy, including a plurality of elements to be arranged on arrangement areas, comprising a device which judges and indicates whether or not arrangement of the elements are arranged in the arrangement areas in a pre-determined order when a switch is depressed after arrangement of the elements is completed. Each of the elements is provided with a magnet or magnetic substance at a pre-designated position therein.A plurality of corresponding operative substances are fixed at such positions where the magnets or magnetic substances of the arranging elements are opposed thereto, respectively, when each arranging element is placed in its pre-determined position. The operative substances are provided independent of each other and cooperate with magnets or magnetic substances only when the arranging elements are arranged in the pre-determined order. Such cooperation is communicated to signalling means through withholding means.

Abstract: The device comprises a stand having a display section inclined slightly to the horizontal, and a selector section projecting from the forward edge of the display section. A plurality of narrow recesses are formed in the face of the display section in parallel rows and intersecting columns; and each recess is designed to hold a folded spectacle frame. A plurality of selector strips are mounted for reciprocation in parallel grooves formed in the face of the selector section. Numerals on the face of each strip register one by one with an opening formed in the panel adjacent one end of each strip so that for each different position of a strip a different one of its numerals will be viewable through the associated opening. A spectacle frame selector pad is mounted on the selector section adjacent the selector strips, and has thumb tabs marked for different ranges of numerals that may be displayed by the selector strips.

Abstract: A boot warmer having a compact portable heater unit for burning solid fuel agglomerates. The heater unit includes a liquid reservoir in heat exchange relationship with the fuel agglomerates. A liquid conduit circulates the liquid throughout a boot or a boot liner by means of a hand manipulated pump. The heat exchanger or unit and pump are exposed and attached to the top of the boot, or in the case of a boot liner to the top of the boot liner, with the provision of means to attach the unit to the top outside of a boot casing.

Abstract: An outsole for a sports shoe which enables it to be used for a wider range of different types of ground than is possible with the known outsoles. The sole is provided with profile projections which are each formed by at least two elongated profile bodies which are close together or joined at one end and diverge towards the other end to radiate on one side only of the projection. The projections when stressed counter to the direction of divergence of the profile bodies provide increased support, but provide less support when stressed in the opposite direction. This is particularly true if the profile bodies are constructed of a springily resilient material. By appropriately arranging the profile bodies on the outsole, controlled account can be taken of the requirements in respect of safety against slipping and the sliding characteristics, of the sport shoe.

Abstract: A pair of running shoes. Each shoe includes an upper portion having an inner side and an outer side and a sole running the length of the shoe from the heel to the toe between the inner and outer sides of the upper portion. The sole is formed of a resilient material and comprises a wedge portion extending from the heel to a point beyond the arch of the wearer's foot and immediately to the rear of the first metatarsal head of the foot. The wedge portion is canted upward in the transverse direction from the outer side of the shoe to the inner side of the shoe so that during running a substantial portion of the sole makes contact with the ground during each step. The sole is constructed to be thicker at portions adjacent to heel than at portions adjacent to toe and is formed of an outsole, a midsole and an intermediate bevelled section disposed therebetween at the heel. The transverse wedge portion of the sole is formed by the midsole.

Abstract: An apparatus, such as the bowl assembly of a tractor scraper, comprises a first member having a second member movably mounted therein for movement between first and second positions. An actuator, interconnected between the first and second members, is adapted to move the second member between its first and second positions. The actuator is connected to the second member via a slot formed through the first member. The slot is continuously masked during movement of the second member between its first and second positions.

Abstract: A specialized load absorbing apparatus is disclosed for fastening tooth adaptors adjacent the cutting edge of an earthworking tool. The adaptor is especially useful with relatively sharp cutting edges wherein the edge itself cannot be used to absorb the load. The apparatus includes conical seats between the adaptor and the cutting edge and/or a specialized wear plate which locates below the cutting edge and absorbs some of the forces exerted on the adaptor.

Abstract: An excavating wheel is disclosed which includes a plurality of digging buckets each comprising a wall supported for pivotal movement between a material receiving position and a material dumping position. A plurality of cylinders each connected to one of the movable walls are selectively actuated under fluid pressure to pivot each movable wall to the material dumping position. A plurality of springs each connected to one of the movable walls are provided to pivot each movable wall to the material receiving position.

Abstract: In a steam iron with the water tank above an electrically heated soleplate with steam apertures, a primary steam generator is disposed in the soleplate and fed from the tank by a metering water valve for steam generation. A cover plate over the soleplate forms distributing passages connecting the primary generator with the apertures and a separate surge generator is provided and fed by a surge valve for intermittent steam generation. A duct connects the surge generator in upstream flow series relation so surge steam flows through the duct into the primary generator and then through the distributing passages to the apertures for a surge of steam. To this general arrangement, an improvement is provided comprising a converging nozzle means forming the exit from the duct and discharging centrally of the primary generator whereby the nozzle increases the surge steam velocity into the primary generator to scrub the generator before entering the distribution passages to the soleplate apertures.

Abstract: Tamper indicating label having strong protective film applied to a relatively fragile base film having adhesive on the opposite side. Sets of indicia and masking layers are printed on the label base with inks of differing adhesivity and overlain by a layer of clear polymeric material such as an ink residue having relatively low adhesivity to the label base but good adhesivity to the masking layers.

Abstract: Half of two symmetrical portions of an object to be displayed, is cut or embedded in one surface of a block of transparent material. The surface of the block in which the symmetrical half of the object is cut or embedded, is made reflective, so that a person viewing the block of transparent material sees the cut or embedded half together with reflections of that half to obtain a view of the composite halves of the symmetrical object. The arrangement is such that when the profile part of a human portrait is cut or embedded in the block, a viewer will see the entire head of the portrait, and not only the profile part. The reflections providing the image of the other symmetrical half of the portrait which is not cut or embedded in the block.

Abstract: The display device includes a housing having a viewing opening, an angularly disposed light transmitting mirror dividing the housing into rear and front display compartments located at right angles to each other, and lamps for illuminating each of the display compartments. One of the lamps is sequentially and alternately brightened, while the other is simultaneously dimmed, by a control including a pair of photocells which control the electrical power to each of the lamps in response to the amount of light falling thereon, a light source adapted to emit light onto both of the photocells and an opaque disc which is interposed the light source and the photocells and is slowly rotated by a motor. The disc includes a window portion which is arranged to sequentially and alternately gradually vary the amount of light from the light source reaching each of the photocells during the rotational cycle of the disc.

Abstract: A housing contains a rotating platform mounted on a shaft which is driven by a motor which can be operated by a battery, flowers plants and bells are mounted on the platform and a butterfly is mounted through a slot in a collar of the housing surrounding the platform, the wire supporting the butterfly is caused to vibrate by a cog wheel mounted on the shaft which causes cogs to press against the wire supporting the butterfly, another cog wheel mounted on the shaft causes a hammer mounted within the housing to gently hit a bell depending from a support within the housing, causing gentle bell like sounds while the butterfly moves around undulatingly as the platform rotates.

Abstract: A device for displaying the definition of words listed alphabetically in sequence on a continuous roll of tape. The tape is rolled past a display window between two rollers each linked by a belt to a reversible motor. A cursor is externally slidably mounted on the housing so as to travel under manual pressure transversely to the direction of travel of the tape, with an electrical contact brush internally mounted to the cursor above the tape which makes contact with a metal idler roller under the tape when the cursor is positioned so that the brush passes through a hole in the tape. A hole is located in the tape at the beginning of each set of words of each letter of the alphabet, with the transverse location of such holes corresponding to markings on the housing to which the cursor may be aligned.

Abstract: A marquee false front consists of a sheet of pennant cloth of one color, e.g. yellow, of dimensions equal to those of the desired marquee false front. The front surface of the sheet, except for letters-defining areas, is coated with matter which inhibits light passage through it. The matter's color is one, contrasting with the pennant cloth's color. Pockets are formed around the sheet's periphery about its back side. These pockets accept interlocking rods, which together form a frame, used to taut the pennant cloth sheet as well as to attach it to a marquee to form its false front.

Abstract: A hydrodynamically superior trawl door with increased efficiency in harvesting fish and reducing fuel expenditures is composed of curved steel panels, which may be of constant radius to allow for economy in manufacturing. The door approximates an ideal hydrofoil surface, presenting a streamlined surface to the flow of water and a relatively sharp hydrodynamic trailing edge, and allowing for a moderate angle of attack and a high lift coefficient. The door is hollow and may be airtight and contains a flood opening with a baffle to allow air to be trapped inside to provide, even when hydrostatically compressed, some measure of vertical stablity. Further, the water ballast is automatically jetisoned during hauling in. The bottom of the door is curved to allow easy clearance of seafloor obstructions.

Abstract: This fishing lure comprises two elliptical plates which intersect to form a cross, in section, and with the plates set at right angles to each other. The lure may be case in one piece but it is preferably formed of two identical pieces, each of which comprises a flat plate, of elliptical shape in plan, and which is provided with a slot extending along its major axis and from an end portion to the mid portion thereof. Also, a groove extends along each side or face of the plate, along said major axis, and from the end of the slot to the other end of the plate. Each of the slots in a plate is of a width to slidingly and tightly receive the edge portion of the groove in the other plate. If two plates are involved, they may be brazed together after assembly, if desired. Also, the lures may be made of brass, plated, and be decorated with a layer of diffraction material secured to the plated surfaces.

Abstract: A snare type animal trap actuatable by a solenoid trigger mechanism having a plurality of sensor elements interconnected with a plurality of snares. The trigger mechanism includes a spring biased T-bar structure over which a snare loop is disposed and triggered by an electrical sensor or switch. The T-bar structure is actuated by the movement of a solenoid which is responsive to said switch disposed in the vicinity of the snare loop. Conventional bait such as animal scent is utilized for urging the animal into the snare loop, or noose, for actuation of the trigger. A backup or secondary trigger mechanism is also incorporated wherein the bait is tied to a mechanical trigger associated with the T-bar structure. In this manner, a plurality of bait and noose elements may be disposed relative to a single trigger structure and operated by a single spring element.

Abstract: A bubble blowing wand for use with a bubble blowing liquid comprising two substantially concentric rings for providing a bubble or bubbles formed within a bubble. The concentric rings are substantially in the same planar relationship with respect to each other. The rings can be substituted with any closed geometric form so long as the peripheries are implaced within each other in a substantially spaced concentric relationship. The preferred concentric rings are formed as a larger outside ring and a smaller inner ring. The larger outside ring is attached to a handle at its outer edge, while the inner surface thereof supports a stem to which the inner ring is connected. Both of the rings have relieved or cut surfaces providing a larger surface area on the rings to accommodate greater amounts of bubble blowing liquid.

Abstract: A helicopter toy comprising a toy helicopter and a launcher therefor, wherein the helicopter comprises a fuselage and a lift rotor having a shaft which rotatably extends through the fuselage supported thereby, the launcher comprises a driving apparatus and a stand therefor, and the driving apparatus is provided with a hand-operated main driving shaft with a crank handle, an accelerating gear system, a rotation shaft which can transmit rotation to the shaft of the rotor of the helicopter, and a mount on which the fuselage can be mounted so that the lower end of the rotor shaft and the upper part of the rotation shaft may be disengageably engaged, is disclosed.

Abstract: The device has a pair of paddle-like handles with each handle having a groove disposed therein for connection to opposite ends of a helical spring. A small car having a series of rollers disposed therein is mounted upon the spring for movement along the helical coils thereof. When the paddles are held in a position vertically spaced from each other, the coils of the spring are separated and the car is allowed to traverse the length of the spring following a helical path as defined by these coils.

Abstract: A bean sprouter for convenient sprouting of beans, seeds, and the like for food preparation, the sprouter is constructed with a cannister having a water collection area in the bottom; a perforated container for beans to be sprouted that is supportable in the cannister above the water collector area, the container including a disposable filter paper casing for the beans; a top with a water inlet dish perforated to distribute water poured into the inlet dish over the bean container; a ventilation system; and an indicator device with a support base that rests on the beans in the bean container, and a vertical flag which is projectable through the top and is elevated as the beans in the container expand.

Abstract: Window insulating apparatus consisting of a plurality of low thermal conductivity panels slidably carried in a conventional window frame.

Abstract: A pair of four-bar linkages employing lost motion incorporated into an aircraft door construction which simultaneously are operable by a main door handle so that the output crank of each linkage has a dwell which is sequenced such that the operation of the associated latches and door hinges are properly timed and sequenced for opening and closing of the door.

Abstract: A novel door jamb made of a plurality of sections which are maintained together in a rigid, dimensionally stable frame by strap means disposed around the door jamb members. The strap means are disposed around the inner surfaces of the jamb members which have a generally T-shaped configuration. The strap means are located within the jamb between the fiberglass matter making up the major portion of the jamb assembly and the sidewalls of the jamb.

Abstract: A honing machine for close tolerance sizing of a cylindrical bore in a work piece such as an internal combustion engine block includes a table for supporting the work piece with its cylindrical bore in vertical alignment and a vertical tower structure spanning the table and supporting a trolley for reciprocal movement motor means for driving the honing head being suspended from the trolley by a gimbal mounting. The honing machine is preferably adapted for manual operation, a manual lever and adjustable fulcrum being interconnected together between the vertical tower and trolley for controlling the reciprocating stroke of the honing head, and adjustable stop limiting the downward stroke of the honing head with the weight of the trolley, motor and honing head being counterbalanced to facilitate reciprocating movement of the honing head.

Abstract: The tool-holding spindle assembly, particularly for a grinding machine, comprises means for supporting the shaft of the spindle and a power drive, for example an electric motor for rotating the spindle. The support means comprise at least one electromagnetic radial bearing controlled by a radial detector, having an annular armature mounted on the shaft of the spindle and a fixed armature surrounding this annular armature, an electromagnetic axial bearing having a disc-shaped armature mounted on the shaft of the spindle and a fixed armature, a chain for controlling the radial and/or axial position of the spindle, said chain being connected on the one hand to at least one detector of the radial and/or axial position of the spindle, and on the other hand to excitation coils of the armatures of each magnetic bearing, and means for selectively modifying the signal generated by said at least one position detector.

Abstract: A vehicle rear axle housing has opposite end grind diameters and inboard tooling diameters proximate to the grind diameters. The grind diameters are ground on a centertype grinder by supporting the ends of the housing in both axial and radial directions; supporting the inboard tooling diameters with a floating support means; rotating the housing from one end; and grinding one of the end grind diameters with a rotating grinding wheel. The floating support means acting on each of the inboard tooling diameters opposes the tendency of the housing to sag during the grinding process.

Abstract: A device adapted to move through a pipeline for cleaning the inner periphery thereof and comprising a rotatable central hub member constructed of an abrasive resistant material and having a chamber therein for receiving a supply of abrasive material, a plurality of radial passageways extending outwardly from the chamber at an angle deviating from the perpendicular of the longitudinal axis of the hub, the radial passageways being in communication with the chamber for receiving the abrasive material therefrom whereby upon rotation of the device the abrasive material will be impinged against the inner periphery of the pipeline at an angle with respect to the perpendicular of the longitudinal axis of the pipeline.

Abstract: A mobile home for retracted transport and expanded occupancy, such mobile home having a roof structure including two roof portions, each roof portion having an element mounted for transverse movement with respect to the body portion of the mobile home between a retracted position for transport and an extended position at which the element overhangs the body portion to form an eave beneath the roof structure. The element for transverse movement is hinged adjacent its outer end to a second element of each roof portion adjacent the lower edge of the roof structure so that the second elements may be unfolded upwardly for joining at their upper extending ends when the first elements are extended, thereby forming a raised roof configuration.