Abstract: Making a wire pack in which a plurality of wires of predetermined length extend between a pair of spaced supports by wrapping turns of wire in a helix around a cylindrical roll while maintaining a constant tension on the wire, placing the supports in position adjacent but spaced from each other and extending axially of the roll and clamping the wire to the supports, and then cutting the wire segments extending between the adjacent supports.

Abstract: A method and apparatus of preplating ties including traversely aligning ties on a path, conveying along the path ties relative to a pair of plate guides, positioning a pair of plates on each tie adjacent the guides, attaching the plates to the tie by partially driving fasteners, continue aligning the plates relative to each other by conveying the tie relative to the guides and securing the plates to the tie during alignment by completing the driving of the fasteners. A tie guide is provided having a fixed guide parallel to the path and a biased pivotal guide extending at an angle to the fixed tie guide.

Abstract: An automatic machine for assembling and banding together the components making up an expansion shell so that the assembly can be conveniently packaged and shipped. In one embodiment, the machine contains a series of work stations arranged to assemble the bolt components within a die. The expansion shell halves are staked to a common strap and the components then passed through a combination forming gage and banding mechanism which aligns the parts in assembly and bands them together using a plastic sleeve. In a second embodiment of the invention, the expansion shells are staked to the strap prior to being loaded into the die.

Abstract: A method for assembling sheet metal pipes, and a machine for carrying out the method which comprises assembling a pipe from a preformed pipe blank into a finished pipe without permanently deforming the pipe blank material. The method comprises the steps of folding of a preformed pipe blank, having a male lock joint member along one longitudinal edge and a female lock joint member along the other longitudinal edge so as to move the longitudinal edges toward each other, and then inserting the male lock joint member into the female lock joint member, with the spring tension created in the pipe blank due to the folding action effecting a locking action between the two lock joint members.

Abstract: A process for forming an electrical contact region between layers of polysilicon with an integral polysilicon resistor during the fabrication of MOS integrated circuits is disclosed. The contact region which does not require critical alignments, may be formed directly over an active channel or buried (substrate) contact. A silicon nitride mask is formed at the location of the contact region on the first polysilicon layer thereby allowing a thick oxide to be grown on the remainder of the substrate. After removal of the silicon nitride mask, a second polysilicon layer is formed which contacts the first layer at the contact region and defines the resistor. A doping step is used to establish the resistance of the resistor. The process permits the fabrication, by way of example, of a static (bistable) MOS memory cell employing polysilicon loads with an area of approximately 1.5 mils.sup.2.

Abstract: Apparatus for installing connectors on the ends of cables comprises first and second reciprocable rams which are coupled to each other by compressible coupling means. Connector deforming tools are mounted on the first ram which inwardly deform portions of the connector thereby to clamp the connector to the cable. Contact insertion tool means are mounted on the second ram and function to push contact members through the connector housing and into the wires of the cable. The arrangement is such that the deforming tools dwell in their lowered position and support the connector housing while the insertion tools drive the contact members through the housing. This arrangement prevents unwanted deformation of the housing while the contact members are being driven therethrough. The apparatus is also provided with improved aligning means which functions to align the connector with the deforming tools and the insertion tools.

Abstract: A method of making a superconducting coil from a superconducting wire includes the step of winding the wire to form a coil. Prior to the winding step, the wire is submitted to repeated tension-stressing of a predetermined stretch and a predetermined number of cycles, in order to reduce the "training" of the superconducting coil.

Abstract: A method for impregnating a superconducting magnet winding in which an annular cavity, which serves as a manifold for an impregnating medium, is left free at each end face of the winding confined by a coil form so that no molds are required, and the cost for finishing operations is minimal.

Abstract: Apparatus and a method are disclosed for affixing bondable finger contacts (102) to a printed circuit board (330). The bondable finger contacts, as supplied, are wound on a reel (301) in a virtually continuous fashion. Each of the contacts is carried between a pair of attached support carriers (105 and 106). At a first station the support carriers are severed (305, 306, 307, 313, 314 and 315) from a selected group of contacts but these contacts remain interconnected and supported by a strip of protective adhesive tape (108). Thereafter the contacts are transferred (310, 311 and 312) to a second station where they are brought into engagement with an aligned printed circuit board (331, 332, 333, 334 and 337). Application of heat and pressure to thermally curable adhesive (109) on the contacts bonds (335, 336 and 339) the contacts to the circuit board. During these operations the protective tape covers the contact area thereby reducing the possibility of contact area contamination and damage.

Abstract: A contact crimping machine for use with a pin having a wire receiving seat includes a chamber, a plurality of crimping dies and actuating means for activating the crimping dies. Means are provided selectively to move one of the pins through the chamber into communication with the crimping dies, and restraining means are provided for maintaining a pin in suspended position removed from the actuating means. The contact crimping machine is constructed so that when the pre-stripped end of a wire is placed into the wire receiving seat of a pin, and downward pressure is supplied, the pin engages the actuating means and the crimping dies are momentarily urged against the wire receiving seat thus crimping the pre-stripped end of the wire within the wire receiving seat. Circuit means are provided to automatically position the next pin into place.

Abstract: Several wire wrapping device embodiments are disclosed, each of which incorporates a releasable bit-locking mechanism associated with the bit-sleeve assembly thereof. The locking mechanism is mounted on the stationary sleeve of the device, and is actuated to responsively effect the release of the bit for rotation, prior to each successive wire wrap operation, only upon a terminal to be wire wrapped being inserted to a predetermined, but adjustable, depth within a terminal-receiving recess formed in the forward end of the bit. Such a mode of operation insures that each wire wrap is accurately positioned on each successive terminal. The bit-locking mechanism also may be optionally employed to responsively actuate an associated switch to either directly, or conditionally (i.e., in conjunction with the actuation of a power source-connected trigger switch), effect the energization of the drive motor coupled to the bit of a wire wrapping device.

Abstract: A knife, comprising a handle and an attached blade, is provided with an aperture in the handle for receiving a protrusion from a support element adapted to be attached to the knife. The support element comprises a sheath having an outstanding resilient tongue carrying the protrusion at a position such that, when the knife is inserted into the sheath, the protrusion resiliently snaps into the aperture in the knife handle to prevent withdrawal of the knife from the sheath until the protrusion is manually pressed out of the aperture by the finger of the user.

Abstract: A ratchet cable cutter is provided with a double linkage between the handle and the pawl of the ratchet mechanism, and the relation between the two linkages is such that improved mechanical advantage is obtained while keeping the linkage mechanism within the limited spatial confines of the cutter tool.

Abstract: A hand knife having a ring-like rotary blade the diameter of which is considerably greater than its axial length rotated by a motor in a handle extending normal to the axis of rotation of the blade. The blade of the knife is rotatably supported in a blade housing that surrounds it and which can be removed together with the blade for sharpening of the blade by merely loosening a pair of threaded fasteners. The knife also has a member in the interior of the blade which guides a part being removed from a product being processed through the central opening of the blade and interferes or restricts the movement of the part with the circular rotation of the blade thereby increasing the efficiency of the cutting operation. The material guiding and restricting member is connected to the knife by the same fasteners which connect the knife housing to the knife handle, may be angularly adjusted within the blade and/or may also be disassembled from the knife without removing the fasteners.

Abstract: A cutlery knife that includes a blade set in a handle, and the handle having a new shape that is more comfortable for being held in a hand; the handle including a depression on each opposite side that serves to receive the thumb so to provide a more natural grip and an upper edge of the handle having a depression near its forward end into which a tip of a finger can be placed to serve as a fulcrum point in handling the knife and providing a more firm grip, the depressions being Teflon coated.

Abstract: A chain saw driven by a two-cycle opposed cylinder engine of simultaneous ignition type. The vibration energies generated in respective cylinders are offset by each other partly because the cylinders are made to oppose to each other, and partly because the ignitions of these cylinders take place simultaneously. Further, the opposed cylinder engine provides ample spaces above and below the cylinders. These spaces are conveniently used for accommodating intake system including a carburetor and so forth and exhaust system including a muffler and so forth. Sound shielding walls are disposed in the ample space around the cylinders so as to insulate the noise caused by the engine and, at the same time, to define a sufficiently large cooling air passage.

Abstract: An artificial tooth with an implantable root adapted to permanently grow together with the jawbone and, also under high mechanical loads as is the case for natural teeth, will not allow for the production of a rejection or repelling reaction between the natural bone and the implant. The tooth root is essentially constituted of a biostable polymer matrix which is compatible with human tissue, in which there is introduced reabsorbable bioreactive calcium phospate in a finely dispersed form, which is encompassed by a thin porous layer of non-reabsorbable calcium phospate, and into which there is inserted a core as a connecting member for the mounting of a dental superstructure in the form of a tooth crown, a fastening element for dental bridges or the like.

Abstract: A clamp, particularly suitable for orthodontia, comprises a threaded screw member and a threaded nut member which is threadably engageable therewith. The screw member has a notch thereacross to receive a wire therethrough, the notch being directed generally towards one end of the thread on the screw. The notch opens on a surface of the screw for accepting a wire and has a first portion adjacent the opening which is defined by substantially parallel opposing walls, and has a second bottom portion which is adjacent the first portion and remote from the opening, the second bottom portion being generally V- or U-shaped and defined by inclined walls which are directed toward each other and toward the bottom of the notch.

Abstract: A post broken off from a cap previously retained in human bony structure, such as a human tooth, is removed from a hole in the tooth within which the post has been retained, as by cement. The removal is effected by a hollow rotary drill having tooth cutters surrounding the post, said drill while rotating being urged into the hole until the cutters have released the post from the surrounding cement. Preferably an adjustable stop is provided within the drill to abut the outer end of the post when the cutters have reached the inner end thereof, to prevent damage to the root structure beyond the inner end of the post. The inner diameter of the drill closely fits the outer diameter of the post so that it acts as a guide for the cutters as they are urged into the hole within which the post is retained.

Abstract: This application describes a dental burr including a cutting surface having one or more grooves therein, each of the grooves being defined by a plane which encircles the cutting surface at a skewed angle with respect to the axis of rotation of the burr. Such groove(s) provide an oscillatory chip clearing action as the burr rotates to give edge cutting and fast chip clearance. The cutting surface has abrasive particles coated thereon.

Abstract: A thermally insulative buoyant swimming pool cover floats on the surface of the pool for covering the pool and for retaining the heat within the pool. Sinking means, such as weights or a mechanical pull-down structure, may be secured to the pool cover along certain predetermined action lines such as fold lines. In one embodiment, an inflatable and deflatable bladder is coupled to the weights. The bladder is dimensioned relative to the weights such that when inflated it overcomes the negative buoyancy of the weights to retain the pool cover in the fully covered position. However, when the bladder is deflated, the weights ovecome the positive buoyancy of the cover along the certain fold lines causing the cover to be at least partially pulled below the surface of the pool and folded while at the same time being retracted against one of the side walls of the pool. Pool water is circulated over or through channels of the pool cover to provide solar heating.

Abstract: A measuring instrument comprising an extensible member and a determining apparatus is provided within an electronic digital scale, said extensible member including sprocket holes arranged at a predetermined interval and said determining apparatus measuring the movement of the extensible member through the use of a movement recognition device. The movement recognition device includes a detection plate for rotating in unison with the movement of said extensible member. The rotation of the detection plate is sensed to generate a length information which is introduced into a computation circuit, whereby a measured result is displayed in a digital display arrangement.

Abstract: A measuring device for checking the dimensional accuracy of the track width of curved transport tracks formed by paired rollers lying on a radius of curvature equidistantly be placed into a transport track and moved therealong, is provided with at least two displacement sensors. The sensors are spaced apart at a distance determined by the track width. The carrier for the displacement centers has contours corresponding substantially to the curvature of the transport track. The carrier has a length which ensures, when inserted in the transport track, the continuous spanning of at least two successive roller pairs. The displacement sensors are located on a radius of the circle of curvature of the track. The height of the carrier corresponds substantially to the track width, and the sensors are of the non-contact type. The carrier may be coated with elastically resilient material on those surface portions subjected to reciprocal action with the rollers.

Abstract: An archery bow sight and range finder including a pair of vertically spaced and laterally extending mirrors slidably mounted on a bow attached bracket and finger trigger actuable by the archer when grasping and aiming the bow. A center bead is associated with the lowermost mirror and the angle of the upper mirror is changed by trigger action to vary the elevation angle of the bow, with split image viewing being employed, combined with trigger action, to locate the exact range of target, one half of the target being viewed directly and the other half being seen through the mirrors. Lateral point of aim is determined by the lower mirror bead being positioned in the center of the combined split image.

Abstract: A point-of-aim indicator for pool balls or the like which includes a relatively flat base member which has thereon a center line which is adapted for alignment with the vertical axis of an object ball together with means indicating the desired contact point of a cue ball with an object ball and the desired point of aim for the cue ball to establish contact with object ball at such contact point.

Abstract: The process produces pharmaceutical, cosmetic or diagnostic formulations by the freeze drying of one or more substances in solution or in suspension in a solvent or a mixture of solvents. The solution or suspension is locally and progressively cooled in a controlled manner while agitating so as to produce microcrystals of solvent which are put in suspension in the remainder of the liquid until there is obtained a high-viscosity microcrystalline complex system comprising essentially isolated microcrystals of solvent in intimate mixture with interstitial liquid phases having a high concentration of the initially present substances. The microcrystalline complex system is hardened by cooling and lyophilized. This process permits the obtainment of lyophilized formulations having a higher dissolving or dispersing rate and lyophilized compositions of normally incompatible substances.

Abstract: A method and apparatus for mixing a first relatively cool gas current and a second relatively hot gas current in a manner such that the resulting gas current has a relatively uniform temperature immediately subsequent to the point of mixing. The first gas current is separated into first and second partial gas currents, the first partial gas current being directed to a conduit which branches from the conduit in which the second partial gas current is directed. The first partial gas current is directed at a relatively high velocity into a central nozzle in fluid communication with the second gas current while the second partial gas current is directed into a ring nozzle which also is in fluid communication with the second gas current and which concentrically surrounds the central nozzle. The flow of the first gas current is regulated by throttling the second partial gas current while maintaining the flow of the first partial gas current.

Abstract: A condensation chamber for freeze drying apparatus is designed such that moisture containing air evacuated from a drying chamber passes substantially uniformly over the cooled interior surfaces of the condensation chamber thereby maximizing the available surface for moisture condensation and freezing. This desirable result is achieved by a tube which is connected to a vacuum pump and positioned through an end wall of the condensation chamber along the central axis of the chamber. One open end of the tube is positioned adjacent one end wall of the chamber and openings are provided through the wall of the tube adjacent the other end wall so that moisture containing air entering the chamber intermediate of the openings in the tube travel in both directions along the cooled interior surfaces of the chamber toward both openings in the tube.

Abstract: An economical, practical method of bringing the major portion of a classroom teaching experience to a remote student. The teacher's oral and blackboard presentations are recorded, forwarded to the student and played back on equipment that reproduces the teacher's voice and his or her graphics that would normally be presented on a blackboard, retaining the time correlation between the spoken and written texts.

Abstract: Discloses a solar energy teaching aid for use in instruction and experimentation to demonstrate the effects and results of active and passive home heating through solar energy. The teaching aid is in the form of a home, one of whose roofs has the largest surface area of any of the surface areas of such home. Such roof has transparent means allowing solar energy to pass therethrough for same to be absorbed by heat sinks, converted to heat energy and stored by such heat sinks, to demonstrate thereby passive collection; and such roof mounts an active collector whose absorber plate absorbs solar energy which is converted into heat energy that heats the internal air in such active collector, to demonstrate thereby active collection.

Abstract: The present invention relates to a new and improved Tell Board wherein the length of the rectangular board is constructed to fold in half, the halves folding together to allow carrying handles at top and bottom to be one-handedly grasped. The face of the aforesaid board is enhanced with background design in keeping with subject matter for which the board is intended and is further made applicable with a plurality of interchangeable background designs which can be employed singly or for both halves simultaneously. The aforesaid board is further constructed with layering in manufacture to create slot pockets at top, bottom, center, and sides of each half, into which for securement of placement are inserted top, bottom, and/or side protrusions of minimally detailed, identically sided show pieces and differently sided background changes. A plurality of colors employed for the show pieces will distinguish one piece intended to portray a certain identity from its counterparts.

Abstract: A planetarium projector and the method of making the projector is described wherein a light source is surrounded by an opaque enclosure having transparent spots or lines. The enclosure is fabricated from originally planar sheets of photographic film. The enclosure is preferably cylindrical however it may assume other shapes such as conical or a rectangular parallelepiped. The planar sheets of negative type of photographic film are patterned by exposure through a master transparent sheet of plastic on which star locations, zone plate lens, or lines representing geographical boundaries or other figures are drawn in opaque ink.

Abstract: A golf-shoe sole made of polyurethane-base foamed material is provided with spikes; but in a spike-free zone located in the region to be occupied by the ball of a wearer's foot there are at least two volcano-shaped elevations the inner and outer surfaces of each such elevation intersecting at a circular rim situated approximately 3 mm below the base and having a diameter from 10 to 12 mm.

Abstract: A removable shoe to be worn over a cast that extends over the foot of a person, which shoe provides protection to the cast and by use of a heel wedge internal or external to the shoe provides an improved walking action.

Abstract: To mechanically assist the suction action of a dredge head in dislodging particles embedded, e.g., on the ocean floor, a plurality of fingers extend downwardly from along the upper edge of an obliquely downwardly and forwardly facing nozzle opening. The fingers are resiliently connected to the nozzle and thus are capable of being bent downwardly so as to be juxtaposed across and thus temporarily block, the nozzle opening, whereby the intake of oversized particles is prevented.

Abstract: Process for reducing the "frosting effect" in the dyeing of textile fabrics made of staple fibers according to a continuous operation with intermediate drying, which comprises flattening the fiber ends protruding from the material web, between impregnating and drying the textile material, by the action of mechanical means onto the surface of the material web and holding them tight to the web surface by ironing, and device for carrying out the said process.

Abstract: A display device in which a banner towed behind a moving vehicle such as a boat, is stabilized by a self-regulating drogue parachute attached to the trailing end of the banner so as to maintain the banner in a vertical plane with its longitudinal axis substantially horizontal, for a wide range of air speeds. When not in use, the banner is wound onto a roller rotatably and removably mounted on a support carried by the vehicle.

Abstract: A display apparatus of the type wherein an object is supported by magnetic force to create the illusion that the object is floating or flying. In the apparatus, the magnetic force is balanced against gravity. Magnetized material is utilized which may be alnico, ceramic, or other compound or alloy or a material such as rubber bonded barium ferrite composition, the material being magnetized through the thickness or diameter of the material. That is, the magnetic material may be in the form of a flat elongated bar or a cylindrical bar or the like. The N pole is opposite the S pole over the entire surface area of the material as distinguished from a rod or bar that is magnetized through the length with the N pole at one end and the S pole at the opposite end.

Abstract: Fiber optic cables are employed to convert punched card type of input infation to an alpha-numeric visual display. Separate groups of the fiber optic cables have first terminal ends positioned in an aperture area corresponding to the punched card aperture area. The second terminal ends of each group of fiber optic cables defines a single segment of an alpha-numeric character in a uniform multi-segment format. When a punched card or punched tape type of input information is inserted between a suitable source of light energy and the first terminal ends of the groups of fiber optic cables, those aperture areas which are punched out permit the transmission of light from the light source to the visual display, thereby illuminating corresponding segments of characters in the uniform multi-segment format at a display plane and converting the punched card information to alpha-numeric visual display.

Abstract: A machine is provided for use by draftsmen, illustrators and artists in making various axonometric or three dimensional drawings, such as isometric, dimetric, trimetric as well as perspective views. The machine includes a flat working surface which supports drafting paper or the like placed thereon. Provided along the borders of the working surface and visible to the draftsman are changeable construction guide lines along with ellipse angle selection data by use of which the draftsman may prepare various types of three dimensional views. The construction guide reference lines in one embodiment are provided by means of a printed chart on a roll which moves under the working surface, and by moving the chart in one direction or the other the reference lines may be moved according to the requirements of the drawing to be made.

Abstract: A changeable exhibitor or sign includes a base plate for attachment to a primary support and an underlying backbone strip spanning the base plate in one direction and anchored thereto. Flip leaves bearing changeable indicia are hingedly and removably attached to the base plate by arcuate spring binder rings which are received through slots of the flip leaves and which have flat terminals engageable through slots of the base plate and captively held releasably between the base plate and backbone strip. The necessity for riveting is avoided. The construction is economical and reliable.

Abstract: A method for causing earthworms to come out of the ground so that they can be readily harvested, functional when applied to an area of ground to cause the earthworms in the soil to come out of the soil so that they can be harvested.

Abstract: A line-actuated fishing rod light includes an electrically conductive bracket, a battery therein, a threaded-base, bulb, and a spring wire trigger arm coiled to provide a socket for the bulb and extending beyond the socket to form a trigger finger. A fishing line is wrapped around the finger and, upon a fish strike, pulls the arm and socket toward a battery terminal. The bulb lights on contact of its terminal with the battery, through the circuit provided by the battery's rear terminal, a rear wall of the bracket, the bracket, the spring wire arm, the coil socket, and the bulb base. The line disengages from the trigger arm upon playing the fish, so that the light does not interfere with the line during such time. Also, the bulb can be rotated into and out of the coil socket to adjust the light's sensitivity to differing forces exerted on the line.

Abstract: A fishing rod comprising a plurality of fiber reinforced synthetic resin laminations and a specific space retaining layer provided intermediate the outermost layer and the innermost layer thereof. Due to the provision of this space retaining layer, a distortion due to a bending moment is effectively reduced and the fishing rod can enjoy light weight and high stiffness.

Abstract: A lighted and sounding yo-yo is provided with a single heavy duty battery in a first hollow shell section, and a lamp in both hollow shell sections. Flexible electrical conductors connect the lamps to the battery. A centrifugal switch is joined with the conductors in the second shell section so as to actuate the lamps only during rotation of the yo-yo. An audible electrical signal device is also located in the lighting circuit of the second shell. A second modification of the centrifugal switch is also shown. The heavy weight of the battery shell as compared with the light weight of the other shell causes the battery shell to dominate the yo-yo in the manner of a gyroscopic action to obtain rotational stability.

Abstract: A channel culture array having a plurality of V-shaped channels in side-by-side relationship. The array is placed on a base over which a contaminated water, such as seawater, flows. The underside of the array defines in part a zone. The pure moisture in the vapor phase condenses in the zone, coalesces on the underside of the array and permeates into the soil in the channels. The portion of the array contacted by the seawater is liquid impermeable.

Abstract: The present invention relates to a method for operating a nutrient film plant growth technique so as to minimise the build up of one chemical in the circulating solution without a corresponding build-up of other chemicals, notably nutrient chemicals, therein. For example the feed of nutrient chemicals is in proportion to the feed of water to the solution, or the concentration of non-nutrients is maintained at a low level or discounted when assessing the amount of nutrient to add to the solution to maintain the desired nutrient level.

Abstract: The gap under a door is sealed by a removable device which is unconnected to the door. The device has a floor-supported base portion which extends under the door and an inclined sealing flange which contacts the door face.

Abstract: A pair of roller and track suspended glass doors is assembled with a tub or shower enclosure without drilling or piercing the door panels. Compression clamps depending from the rollers grip the upper edge of each panel. Adhesive pads support combined handles and towel bars on obverse and reverse side of alternate panels. A central bottom guide track is snapped into and adhesively secured to the bottom frame member. The bottom frame member includes a upright outside flange with an inwardly extending rubbing bar to preclude outer panel abrasion. End guides for the inner door panel are fixed to upright side members of the frame. The upright members support the frame header which contains the top track for the rollers and may be contoured to accept a trim panel on the outer face thereof.

Abstract: A centerless grinder for shaping bars during a through-feed grinding operation. A special centerless grinder is adapted to receive a workpiece at an inlet end between the regulating and grinding wheels and to discharge the workpiece at an exit end between the wheels while a special pivoting mechanism is provided to relatively pivot the wheels with respect to one another about a pivot point proximate the wheel inlet end. The relative pivoting movement of the wheels is performed in timed relationship to the through-feed movement of the workpiece, so that the exit spacing of the wheels determines the final, exiting, diameter of the workpiece at a given time. Therefore, varying cross-sectional diameters of a workpiece may be achieved along a work axis by appropriate timed movement of the wheels.