Abstract: The process provides practical manufacture of a two-piece, dielectric filled, ferrite toroid assembly while providing optimum electromagnetic characteristics presently not consistently available by manufacturing the toroid in a pressed one-piece configuration. A pair of complementary ferrite blanks of selected shapes are machined to dimension, and the mating surfaces thereof are selectively lapped. The complementary ferrite parts are then permanently assembled about a pre-machined dielectric insert, and the composite toroid is secured together by a selected adhesive selectively disposed therein.

Abstract: A straightedge having incremental markings along two opposite edges, the spacing of the markings being progressively decreased toward a theoretical vanishing point to provide a perspective scale. The straightedge has a rigid spine, with two edge members of transparent material on which the graduations are marked. The edge members are offset toward opposite faces of the spine, so that when one member is held flat on a work surface, the other member is raised above the surface, allowing the raised edge to be used to guide or support a pen, brush, or the like without the ink or other fluid marking material running under the edge. The raised edge may be rocked into contact with the work surface and the upper edge serving as a guide or support. In a further manner of use, the straightedge facilitates rapid basic layout of a perspective drawing, such as an architectural rendering.

Abstract: For use in laying out duct or box-like structures, a gauging device having multiple sides, including appendages in predetermined positions, with rotatable connection means for attaching the gauge to a measuring tape (or it can be integral with a measuring bar), with the appendages serving to position the tape or bar so as to add various predetermined lengths to the tape or bar equivalent to material lapped or cut away in the fabrication of corner and lap joints or seams with the measuring tape or bar indicating directly in terms of the specified or finished inside dimensions of the structure. The appendages are configurated to enable measuring from points on each of several variously oriented planes.

Abstract: An arrangement for applying a constant load on the probe of a coordinate measurement machine to eliminate errors caused by operator hand pressure when the probe is manually moved into engagement with a part being measured. In coordinate measurement machines, a carriage movable in the Y axis direction bridges the part being measured. A probe on the carriage is movable in the X axis direction thereby permitting probe movement in any quadrant in X-Y axis directions. To eliminate measurement errors in the Y axis direction, a constant load is applied to the probe by a pair of spring motors mounted on opposite ends of the machine. These spring motors are connected by spring motor cables to the carriage. When the back cable is attached to the carriage, the applied force urges it in the +Y axis direction, and the front cable when attached, urges the probe in the -Y axis direction. To apply a constant load on the probe in the X axis direction, spring motors are mounted on opposite ends of the carriage.

Abstract: The pressure and temperature and in some cases the flow rate of fluids such as polymers are controlled by reducing the cross-sectional area of the conduit carrying the fluid to provide a flow channel communicating with the inner surface of the conduit whose cross-sectional area is less than that of the conduit. A valve housing is provided containing a chamber which communicates with the flow channel. The pressure and temperature and in some cases the flow rate of the fluid is controlled by adjusting the position of a valve member slideably disposed in the chamber. As the valve member slides within the chamber, it enlarges or reduces the cross-sectional area of the flow channel to change the flow resistance of the channel, thereby changing the pressure and temperature upstream of the channel and in some cases the flow rate through the channel.

Abstract: An endless flexible sheet form member defines a loop having opposite circumferential edge portions and which may be moved relative to front and rear stationary bulkheads which support and guide the loop to form a clothes drying drum of a desired shape to optimize clothes tumbling patterns and the utilization of dryer cabinet space. Means are provided to form a seal between the movable drum and the stationary bulkheads.

Abstract: An improvement is provided in an audio visual teaching device which is particularly suitable for teaching the proper and correct pronunciation of words, phrases, etc. The device employs a card handling mechanism for moving an information card across a record/playback transducing head. A dual track magnetic stripe on the card carries information on one track indicating the correct pronunciation of a particular word or group of words which the student can hear through a speaker or preferably a set of headphones. Additionally, the device includes a microphone and record portion so that the student can practice speaking a word which then is simultaneously recorded on a second track on the magnetic stripe so that the student may replay the second track and listen to his own pronunciation and compare it to the model on the first track.

Abstract: A method of teaching reading by presenting words in an orthography consisting of standard type having letters associated with each sound sequentially in a syllable and symbols to indicate each of the vowel sounds. Children and poor readers learn more rapidly with a minimum of supervision.

Abstract: An improved sole for an athletic shoe comprises artificial turf material such as is commercially available and having a flexible backing from which the artificial turf projects in a common direction. Preferably, the turf is cut into the shape of the sole of a shoe in three sections and is adhered to an inner sole of the shoe by an adhesive so as to form a sole of substantially continuous artificial turf material. The sole is of suitable configuration for use with desired types of athletic shoes and may include baseball, soccer, football, tennis, and the like type of athletic shoes. The shoe is of substantially reduced weight relative to conventional such shoes yet affords greatly improved gripping, whether on natural or artificial turf, with avoidance of ankle and spiking injuries typically encountered with athletic shoes employing spikes and the like.

Abstract: A replaceable corner tooth assembly is disclosed, for an earthmoving implement having a sidewall member and a base plate member disposed in laterally extending relation therefrom at a forward corner thereof, including an elongated body with a rearwardly extending, fully corner encasing angle member and a rearwardly extending cooperating inner leg which load-transferringly and interlockingly embrace the sidewall member and the base plate member at the forwardly disposed intersection thereof for maximizing effective corner protection of the implement.

Abstract: A display device, for example in the shape of a Christmas wreath, is described which is suitable for mounting greeting cards each having a dimension at least equal to a predetermined value. The display device includes a support member having a substantially flat surface and an outer peripheral edge, including lateral inclined edges, which bound the surface. A plurality of elongate, substantially parallel horizontal mounting strips are spaced from each other, the spacing between the adjacent strips being equal to the predetermined value. Each of the strips is connected on the support member at only one elongate edge thereof to form an opening in the nature of a card-receiving pocket between the other elongate edge of the respective strip and the support member.

Abstract: A sign frame assembly is used for constructing peripheral display panel supporting frames for internally illuminated or other type signs. The system employs three basic extruded shapes -- a generally channel-shaped main frame member, a snap-fitting cover member for mounting on the main frame member to provide an enclosed watertight wiring chamber, and a retainer member for mounting a sign display panel upon the main frame member. The basic shapes are designed for rapid assembly and to provide convenient access to the interior of the assembled frame and sign. Alternate retainer member shapes enable the display panel to be either peripherally clamped to the main frame or to be hingedly mounted upon the main frame, so that access to the sign interior may be had without completely removing the display panel. The main and cover frame members are constructed in two or more standardized sizes while a single size of retainer member is usable with all of the various sizes of main frame members.

Abstract: A safety indicator for guns, and particularly shot guns and rifles, utilizing a movable slide member which sets or releases the safety mechanism of the gun. A pair of jewels, in the form of glass or plastic crystals, are mounted in the gun stock to be selectively covered and uncovered when the slide member is moved to one or the other of its two positions, one jewel preferably being red and exposed when the slide member is moved to unlock the trigger.The invention utilizes fiber optic rods to transmit light from an electric bulb which is energized when the safety slide member is moved to trigger unlocking position. Fiber optic rods are also utilized to transmit daylight to both of the jewels.

Abstract: This disclosure relates to a versatile lightweight rifle rest having a pointed upstanding rod member and a step-on member for affixation to the ground and having an adjustable two-point contact cradle member for supporting the entire rifle and being readily positive positioned along the length of the upright rod member and being quickly and easily angularly rotated and elevationally pivoted to effectively sight in the rifle on a target.

Abstract: A combination of block units comprising: a generally H-shaped block unit having a configuration including two symmetrical grooves extending in Y-axis direction in a basic rectangular parallel-piped having X-, Y- and Z-axes intersecting with the right angle with each other, each of the grooves has a base wall which is parallel with X-axis and oppositely inclining side walls intersecting with the base wall with an acute angle, the distance between the centerlines extending in the Y-axis direction on the side walls being half of the length of the parallel-piped in the X-axis direction, a generally T-shaped block unit having a configuration attained by bisecting the H-shaped block unit along the X- and Z-axes thereof, a generally U-shaped block unit having a configuration attained by bisecting the H-shaped block unit along the X- and Y-axes thereof, and a generally T-shaped block unit having a configuration complementary to the U-shaped block unit.

Abstract: A foam body, for example in the form of a mat, strip, square or the like, consisting of pieces of polyurethane foam held together by a bonding agent, which may be foamed, e.g. porous polyurethane, characterized in that plant seeds are contained in the foam body.

Abstract: An inertia insensitive disconnectable drive linkage connects a power operator to a swinging door and comprises a door bracket fixed to the door and an arm operator pivoted thereto. A latch positively locks the operator arm to the bracket during normal powered swing of the door. A cam on the door frame releases the latch when the door is swung beyond the door closed position in the opposite direction of opening during emergency operation.

Abstract: Turnable window arrangement with a casement connected to a window frame by means of two oppositely directed pivot pins at one end of the casement which is uppermost when the latter is in its normal closed position. The pivot pins slidably engage their respective associated guide grooves in the window frame to permit this one end of the casement to be displaced to selected pivotal positions between upper and lower ends of the frame. The pivot pins are also displaceable in the casement in a direction substantially parallel to the height dimension of the casement, namely parallel to the longitudinal axis of the vertical side portion of the casement. Link arm mechanisms are arranged on their respective opposite sides of the casement for the support of the latter in the window frame at the selected pivotal positions.

Abstract: A machine for reproducing an article from a pattern, wherein the pattern and the article are mounted respectively on parallel supporting shafts and driven at the same speed of rotation, and are in contact with a feeler and a tool, respectively. The two shafts are mounted on a table designed to make two perpendicular movements, namely an advance movement in a direction perpendicular to the supporting shafts and a contact movement in a direction parallel to those shafts. The invention is applicable in particular to the roughing out of toric lenses.

Abstract: A two wheel-lapping machine for surface-, plane-parallel-, and external plain or cylindrical- lapping, with two lapping- or working- wheels, which are mounted on one lapping wheel carrier, respectively, of which the upper lapping wheel carrier is mounted on the lower end of a main spindle and the lower lapping wheel carrier is mounted on the upper end of a main shaft, the latter being rotatably supportd in the machine bed; wherein the main spindle is formed as a piston and is axially displaceable with the piston in a cylinder, with the cylinder being rotatable in a slide, and with the slide being horizontally displaceably mounted in a frame or portal, the latter being rigidly arranged at a distance above the machine bed by means of several portal supports.

Abstract: The disclosed device comprises a supporting disc, a sleeve centrally pendent from the disc, a hollow driven shaft rotatably and axially slidably extending through the disc and sleeve, and a lapping disc fixed to that end of the shaft extending from the sleeve. With the supporting disc disposed upon a valve body including a valve seat to be lapped, the lapping disc can contact the valve seat to fit it during the rotation of the shaft. With the lapping disc raised from the lapped valve seat, a wiper on the disc is actuated to wipe the latter. The seat can be observed through a periscope type observation glass extending through the hollow shaft.

Abstract: A grinding apparatus for reforming a surface of a commutator of a motor which has been worn or damaged, comprising a main spindle slidably movable in a guide sleeve as a housing of the apparatus, a cutting and feeding mechanism located at the back end of the main spindle for finely adjusting the grinding depth of a grinding stone arranged at the front end of the main spindle, and a clamping mechanism arranged on the guide sleeve for mounting the apparatus by forced engagement of the clamping mechanism in an opening of a casing of the motor for changing carbon brushes.

Abstract: A deck anchor, for securing in a hole in a metal plate in concrete building structures, has a stem with a connector at one end, and an assembly slidable on said stem and urged by spring loading towards the connector. The assembly includes a washer, and a collar portion, initially integrally joined by rupturable bridging means. When the anchor is driven, by force applied on the stem, to thrust the assembly through a hole in a deck plate, the collar portion is separated from the washer, such that the anchor becomes retained in the hole of the deck plate with the washer spring-urged against one major face of the deck plate, and the collar urged against the other major face of the deck plate.

Abstract: An improved breakaway coupling is provided which is particularly suitable for use in assemblies which are subject to impact such as roadway lamp standards, highway signs and the like. A number of longitudinal grooves provide fracture-initiating regions which provide relatively high compressive and tensile strength in a fracturable coupling.

Abstract: A family dwelling-land development arrangement with a high building-to-land area ratio including a dwelling module comprising a plurality of individual and separate and spaced apart single family dwellings disposed in a substantially U-shaped configuration about an auto court with an open end adequate to accommodate passage of automobiles. The module includes a plurality of automobile shelters adjacent said dwellings and opening to the auto court to accommodate automobiles passing through the opening to the interior of the configuration.

Abstract: The coping is mounted atop the gutter and each is formed of stainless steel, with the top surfaces being sandblasted to prevent slipperiness, particularly when wet. The gutter, which carries water overflowing and draining through slots in the coping, is also used as a form for pouring the concrete walls of the pool. The gutter provides not only check points for transit leveling, but also an upper rear flange for use in leveling the top of the concrete when poured.The rear of the coping is supported by the gutter, while the depending front wall of the coping is supported by an upwardly extending front wall of the gutter, at an outward offset of each, through a series of special, fine adjustment connecting devices. The upstanding front nose of the coping determines the level at which water will overflow, while the various sections of the coping may be adjusted through the fine adjustment devices, to correspond with the water level, thereby providing a highly accurate level setting for the rim.

Abstract: Interfitting prefabricated parts of a truck body structure for attachment of rear and front wall assemblies, hooking a roof on the front wall and lowering it onto the rear wall, connecting on the side walls, utilizing a roof rail hooking leg attaching to front and side wall top caps, and interfitting corner posts and side wall edges.

Abstract: A foundation for securely retaining a factory built structure, such as a mobile home, modular building, or the like, having an underframe including a pair of steel beams, to a land site. The foundation includes a concrete pad with a pair of recesses for containing the axles attached to the underside of the building frame. The pad has cylindrical concrete piers extending through its surface at spaced intervals forming two lines spaced at the same distance as the beams of the underframe. Central cylindrical cavities are formed in each of the piers and are adapted to receive cylinders which extend downwardly from the underside of the frame beams. The undersides of the beams rest on the top surfaces of the piers and downturned flanges attached to the frame beams surround the sides of the piers and restrain the structure against lateral movement.

Abstract: The absorption of moisture by the unfinished edge of an exterior wooden door, particularly through the bottom edge, is prevented by overlaying a sheet-form or tape bridging member over the edge of the door and bonding the member by an adhesive to such edge to form a moisture impervious bridging sealing layer.

Abstract: A wall frame construction composed of sheet metal studs provided with a hole in at least one wall positioned at nogging level, nogging strips formable from offcuts of the studs slidable at right angles to the plane of the wall into pairs of nogging clips of U-shape provided with a swaged hole in each of their bases to form protruding collars for locating and retaining the nogging clips within said holes in the studs.

Abstract: A framing assembly which braces the back of the panel with metal strips attached to the sides of adjacent framing members after they are attached to the panel, to permit secure bracing regardless of warping present in the framing members.

Abstract: A hog slat reinforcing bar support comprising a one-piece plastic body with first and second support portions for respective reinforcing bars. Each portion includes a surrounding wall with an opening through which the associated reinforcing bar can be inserted and held within the support portion. The portions are connected by a connection piece and projecting members extend laterally from the body and define a plurality of support points by which the body can be stably supported in a trapezoidal hog slat form and the reinforcing bars held in predetermined positions therewithin.

Abstract: A truss top-bearing clip forming a part of the end bearing joint assembly for trusses having a pair of parallel wood members and a metal end web such as a tubular flattened end web. The clip is fabricated from flat sheet metal using standard punch-press operations. The ends of the metal truss webs are connected to the clips so that the web load is transferred directly to the clip via metal-to-metal contact. The top wood chords are connected to the clips and bear on the flanges of the clips.

Abstract: An elongated structural member of substantially triangular cross-section incorporating either one longitudinally extending continuous passageway of circular cross-section whose center is located at or near the center of the cross-section of the member or a cluster of passageways whose center is similarly located with a member so constructed employed to transmit forces in compression, tension, shear, bending, torsion and any combination thereof and the passageway employed as conduit for air, water, electrical wiring and the like and in the construction of buildings such members specifically designed to serve as beams, columns, or struts.

Abstract: Method and apparatus for semi-automatically packing packages being supplied by automatic packaging apparatus at a rapid rate, characterized by the steps of or means for diverting the packages sequentially into one or more chutes; accumulating the packages from all chutes on a gate; transferring the packages from the gate and in a desired position into a receiver; providing clearance in the receiver for a next package or packages transferred from the gate; repeating the above steps until a predetermined number of packages have been accumulated in the receiver and thereafter removing the predetermined number of packages to make room for the next predetermined number of packages.

Abstract: A method and apparatus for controlling static charges on film formed into packages and filled with particulate material to prevent the particulate material from attaching to the film and degrading the seal area of the package.

Abstract: A high productivity packaging apparatus and method utilize a drum and a plurality of circularly arranged trap chambers, or traps, which communicate and rotate with the drum as an integral, compact unit. During rotation of the drum, the level of material to be packaged is sensed within the drum and material is fed intermittently into the drum by a positive screw feed to replace material withdrawn. Each trap successively draws from the material stored within the drum a unit of material to be packaged, traps the unit, discharges any excess and during continued rotation directs the material toward a trap outlet for discharge at a discharge station in synchronism with the passage of packet containers. The packet containers are formed in a continuous strip of heat settable, coated, sheet material (e.g.

Abstract: A carrier adapted for rotation about an axis so as to define a circular path at the outermost extension of the carrier. Anchoring means positioned on the carrier at spaced locations along said circular path. A flexible elongate member extending between and fastened to said anchoring means. At least one cutter mounted to the elongate member between a pair of the anchoring means. Said cutters extending outwardly of the circular path and maintained in said extended positions for impact cutting at least partially by the centrifugal force produced by rotation of the carrier. Said flexible member permitting rearward or inward flexing to withdraw the cutter behind the path defined by the carrier upon striking a solid object, e.g. a rock.

Abstract: Spear cutting assemblies are described for asparagus harvesters to selectively cut mature spears having a prescribed height without cutting or damaging immature spears of a lesser height. Each assembly has a sensing means composed of two vanes that are biased together to form a "V" shaped channel to initially receive mature spears. One of the vanes engages the spear and is deflected thereby causing the rear ends of the vanes to move laterally into alignment with the spear. The movement of the vanes causes a knife subassembly to move laterally into alignment with the spear.

Abstract: In a method of manufacturing twistless yarn a sliver or roving comprising at least two staple fibre components of which at least one is a potential adhesive, is subsequently wet-drafted, false twisted, moistened again, whereafter the potential adhesive is activated and the staple fibre material is dried.

Abstract: In the spinning or twisting of continuous fibrous material at a spinning or twisting frame station comprising a spindle for carrying a bobbin, a ring concentrically mounted about the spindle and supporting a traveler for guiding the fibrous material onto the bobbin and means for driving the ring and the spindle, the improvement comprising engaging the fibrous material at the head of the spindle thereby to reduce or eliminate ballooning of the fibrous material and rotating the ring at a lesser rate that the spindle thereby to decrease the tension on the yarn.

Abstract: A circuit for synchronizing an electrodynamic clockwork drive including two inductors and two permanent magnet assemblies which are moved relative to a clockwork drive by a mechanical oscillation system having the inherent frequency f and the first inductor is disposed in the operating circuit of a switching transistor and the second inductor is disposed in its control circuit so that current pulses induced in the second inductor trigger the switching transistor.

Abstract: The electrooptic display of an electronic timepiece has a total of only twelve indicator elements. Hours are indicated by causing one element to produce one kind of optical output such as steady illumination. Minutes are indicated by causing an element to produce another kind of optical output such as intensity modulated illumination. The particular element selected for intensity modulation is a coarse indication of minutes (5 minute increments); the modulation itself is a fine indication of minutes (1 minute increments). Similar techniques may be employed for indicating the month and day.

Abstract: An adjustable pitch tool bar assembly for use in track presses employed in the assembly and disassembly of drive chains for ground engaging shoes of track laying tractors. The adjustable pitch tool bar assembly includes a tool bar track for carrying a pair of tool blocks which mount bushing and pin tools and slide on the tool bar track to accommodate different track pitches.

Abstract: A knitting machine of the type using positive contact of a moving tape to correspondingly urge the yarn in feed movement from its source to the machine knitting station, but wherein the movement of a first, comparatively large master tape is effectively transmitted to plural second smaller loops of tape associated with each yarn strand to provide said feed movement thereto. Thus, for example, any spinning oil in the yarn is deposited only on the smaller tape loop and, if it causes rupture thereof, correspondingly limits the loss thereto. This is in contrast to existing feed systems in which belt rupture from the foregoing occurs in the large master tape, and in which other shortcomings associated with using only a single, large master tape also occur.

Abstract: A spin nozzle system for imparting a thrust to pre-spin a missile prior to aunching. This system includes locating the spin nozzles within the outside diameter of the main missile motor. Also the nozzle exhaust gases are exited into the main motor exhaust cone to thereby augment the total missile thrust.

Abstract: An apparatus for and method of suppressing infrared radiation emitted from hot metal parts at the aft end of a gas turbine engine and from the exhaust gas plume thereof is provided and such apparatus comprises a dual purpose ejector vane assembly operatively attached to the engine for introducing cooling ambient air into the hot engine exhaust gases and hiding the hot metal parts. The vane assembly has a duct structure for receiving and confining the engine exhaust gases and the assembly provides at least one stream of cooling ambient air across one full dimension of the duct structure and exhaust gases confined thereby with the stream of cooling ambient air mixing with the hot engine exhaust gases across the full dimension of the duct structure to assure optimum mixing thereof.

Abstract: The pollution content, for example, CO and NO.sub.x, of exhaust gas from spark ignition engines is decreased by a reactor and also by retarding ignition spark (a) during engine-idling solely as a function of pressure downstream of throttle valve and (b) during engine part-load solely as a function of pressure upstream of . At engine full-load only the normal spark timing of the engine operates. In this way the minimum effective exhaust gas reactor temperature is quickly reached and maintained during idling and part-load, but the reactor is not overheated when engine is at full-load.

Abstract: To supervise operational effectiveness of catalytic reactors included in exhaust emission detoxification systems, an oxygen sensor is located downstream of the reactor to determine oxygen content in the exhaust gases from the internal combustion engine, the oxygen sensor comprising an ion conductive solid electrolyte forming an ion concentration chain and having catalytically inactive contacts, connected to a detection circuit which provides an output signal in dependence on a signal from the sensor, the output signal operating an alarm, or a transducer which interferes with proper engine operation to force the operator to have the reactor repaired. Preferably, two ion conductive chains are used, in a single sensor, or in two sensors, one being exposed to exhaust gases upstream of the catalytic reactor and the other downstream of the catalytic reactor, the output signals being provided to a differentially connected operational amplifier, to balance out extraneous influences.

Abstract: A fuel injection system supplies fuel to only selected cylinders until the catalytic converter is heated sufficiently.