Abstract: A one-piece elastic fastener includes a pair of spaced elastic, generally dish-shaped head members adapted to fit on opposite sides of pieces of material to be joined. The head members each have a rim and are disposed concavely inwardly with their rims facing each other. An elastic shank member joins the head members and is adapted to pass through an opening in the pieces of material. In one embodiment an elongated loop member is centrally attached to one of the head members and is adapted to pull it through an opening in the pieces of material to be joined. In another embodiment a boss is positioned on one of the head members and a hook is used to pull it through the opening.

Abstract: A pair of slide fastener stringers of continuous or substantially endless length comprising a pair of opposed stringer tapes and a pair of rows of coupling fastener elements carried along the respective confronting inner longitudinal edges of the stringer tapes. Each row of fastener elements has a plurality of sections devoid of fastener elements or at least of the coupling head portions thereof, said sections being spaced at substantially equal intervals defining the ultimate length of an individual fastener product. The end stops are applied to the tapes where the element-free or coupling-head-free sections are located. The tapes are made of thermoplastic synthetic fibers or their blended yarns and have a plurality of openings disposed adjacent to the element-free or coupling-head-free sections and extending across the element rows that have been coupled together. The marginal edges defining the openings are fused with heat.

Abstract: An improved method for producing decorative fabric wherein a desired geometric design is imparted to fabric through specific dyeing processes. The fabric is smocked to form ridges and a plurality of dye applications to the smocked article promotes diffusion of the various dyes and associated colors through the fabric. The fabric is additionally stiffened to facilitate controlled, concentrated dye applications, after which, the fabric is returned to its original shape and finished.

Abstract: The air jet is provided with a first cylindrical baffle (A) and a second planar baffle (B) supported adjacent the exit orifice (30) of the air jet for successive engagement by the yarn (Y) leaving the air jet. The baffles (A) and (B) successively engage and deflect the yarn as well as the air leaving the exit orifice of the air jet so that two different types of treatment are imparted to the yarn by the successive baffles to permit higher operating speeds and to enhance the quality of the textured yarn. The homogeneous quality of the yarn is enhanced and the yarn exhibits a tighter yarn cross-section bundle because the exterior loop surface and the number of periodic balloons are both reduced.

Abstract: In a roll for pressure treating webs of material comprising a stationary core which is surrounded by a rotatable hollow cylinder spaced from the core, and in which there are provided, between the core and the hollow cylinder, longitudinal seals and end seals which seal off a longitudinal chamber which extends between the core and the hollow cylinder on the side of the working gap and is filled with a pressure liquid, with discharge canals provided in the core for discharging leakage liquid from the space between the core and the hollow cylinder which remains between the core and the hollow cylinder on the side facing away from the working gap, an improved sealing arrangement, which includes a strip which extends along the hollow cylinder over the length of the longitudinal chamber following in the direction of rotation, the seal projecting at an angle from the core toward the longitudinal seal up to the inner circumference of the hollow cylinder and discharge canals opening in the region between the point whe

Abstract: A method of fabricating nozzle blades for lasers in which the blade core is formed from an annular-shaped, rigid, chemically resistant material having a pair of opposed circular grooves machined therein. An open-ended exit nozzle is formed in the outer diameter of the core. The coolant channels, injection manifolds and trip manifolds are formed by electrodepositing a chemically resistant material around the core after the core has a plurality of cutouts formed therein. Final nozzle blade configuration takes place after the electrodepositing operation is completed.

Abstract: Illustratively, a portion of a thin sheet of high thermal conductivity material is wrapped in tight thermal communication about the external surface of a working fluid conduit. A hinged male die presses part of the portion of the sheet into a semi-cylindrical female mold. The die is removed and the fluid conduit is placed in the semi-cylindrical sheet. Another hinged mold, with the aid of a drawing up mechanism bend the balance of the sheet portion into thermal communication with the hitherto exposed conduit surface. Beveled mold edge also exposes a seam for joining the sheet portion to the balance of the sheet.

Abstract: A torsional vibration damper and method and apparatus for its manufacture. The outer inertia member carries a radially inwardly extending web, the web sandwiched by a pair of elastomer members. A two-piece hub sandwiches the elastomer members, the two hub pieces being held together as by swaging or by rivets. Tooling for the swaging mode of assembly is shown such that the elastomer members are deformed from an original to a final configuration, and the swaging then accomplished with a single continuous movement. The swaging assembly apparatus for the device includes Belleville springs, the apparatus limiting the maximum force applied to that portion of the hub members controlling the assembled elastomer thickness. The damper configuration facilitates low specific energy dissipation and large elastomer-to-metal interface area to thus tend to lower shear stress in the elastomer. In addition, should the elastomer fail in use, the damper inertia mass is mechanically constrained to remain with the hub assembly.

Abstract: A filament-bearing plate or disk system for cutting grass and the like in which the filament is wound upon later-closed serrations in the disk periphery rather than passed through a succession of holes in the disk periphery; embodiments of the invention have respectively resilient, malleably deformable, and rotationally positionable aperture closing, and a ring closure.

Abstract: An improved metallization system for semiconductor substrates comprising successive layers of at least one barrier metal and tin is disclosed. A semiconductor package comprising a housing of impervious material, a semiconductor device having the metallization system of this invention disposed in the housing and conductor means bonded to the tin on the semiconductor device is also disclosed. The system is of particular usefulness in double stud diode packages.

Abstract: Disclosed is an apparatus for machining the bolster bowl surface, the bolster pocket surfaces, the fulcrum pin hole surface and the bolster gib surfaces of railroad truck bolsters. The apparatus includes a base, a fixture mounted for rotation on the base and clamps on the fixture for clamping the bolster rigidly to the fixture. A locating template is utilized to properly position the bolster on the fixture, and once properly positioned and clamped, the fixture can be rotated and locked in a plurality of different positions to permit machining of the various surfaces. To machine the bolster pocket surfaces, the fulcrum pin hole surface, and the bolster gibs, a first machining (milling) head is provided that is movable along three perpendicular axes.

Abstract: A universal type machine tool has a horizontal bed which, via a turnable intermediate slide, supports a rectangular work table, the slide being displaceable along the bed. A vertical column, displaceable along a bed perpendicular to the first bed has a second intermediate slide displaceable along the column and turnable around a horizontal axis. Its turnable portion carries a rectangular plate along which a foot plate for a drive unit is longitudinally displaceable. The foot plate supports a drive unit turnable around a horizontal axis and adapted alternatively to rotate a tool or a workpiece.

Abstract: A cell for a semiconductor memory of the static type employs two conventional MOS transistors along with a field implanted resistance which functions as a grounded-gate junction FET. Along with other resistor elements, these devices provide a grounded-gate amplifier with voltage gain and a source follower, creating a circuit which is stable with either a "1" or "0" stored. No clock or other refresh circuitry is needed.

Abstract: An electromagnetic friction brake whose components are held in assembled relationship by pins which are received with a press fit within holes in an electromagnet and an end plate and which are received with a loose fit within holes in an armature. By virtue of the pins, an assembly gage may be used to automatically establish an air gap of desired width between the armature and the electromagnet when the brake is assembled.

Abstract: A tool and method for installing a flexible tube between two or more glass encapsulated reed switches of a multi-capsule reed relay switching assembly. The tool is formed from a steel wire in a wedge shaped structure, adapted to compress when the tubing is fitted over it, exerting pressure against the inside wall of the tubing and narrowing the tubing into an egg-shaped configuration. This allows the insertion of the tubing between the reed capsules with a minimum of interference.

Abstract: A contact retaining clip is fixed in an insulator cavity by the use of discontinuities around the clip which can be wedged or embedded in the insulator. Preferably a probe is inserted into the clip to expand it. The clip and/or the probe may be heated prior or during insertion or by heating after insertion of the clip but before expansion of the clip.

Abstract: In a method for making a flexible electrical jumper, an elongated flat strip of electrically conductive material is die-cut to form a plurality of electrical leads interconnected by a carrier strip which extends along the longitudinal axis of the strip of conductive material. Each lead includes a central, flexible flat portion, and opposed contoured ends which are formed into generally U-shaped cross-sections. Sheets of insulative plastic material are laminated to the opposite sides of the central flat portion of the strip to embed the leads therein, with the contoured ends being exposed. The carrier strip is removed and the insulating material is cut at the desired locations, depending on the number of leads required for the flexible jumper. The method of the invention is carried out in a continuous operation, and the resulting flexible jumper is characterized by the exposed termination ends which are rigid and have generally arcuate, U-shaped cross-sections.

Abstract: A horseman's pocket knife has a handle into which a plurality of useful blades can be folded. The knife includes a hoof-cutting blade with a cutting edge along one side. A hook-shaped cross section is established at the end of the hoof-cutting blade and its tip is also provided with a cutting edge. The width of the hoof-cutting blade toward the hooked end and the size of the hook are dimensioned so that the cutting blade can be folded into the handle without interferring with the handle or other blades. A hoof-cleaning blade in the shape of a hook in the plane of the blade may also be provided for removing stones and other debris from the horse's hoof.

Abstract: An implantable tooth for humans is made by first extracting the natural tooth and producing therefrom an exact replica of at least the root portion of the tooth, formed of porous metal or ceramic with or without the application of a surface coating of dental porcelain or the like to the replica. It is then permanently implanted in the natural tooth socket with or without a stabilizing means anchored to the underlying alveolar bone. It is contemplated that the method is also applicable to a complete tooth with the porosity localized in the root area. More usually, a porcelain cap or the like would be used to top the root prosthesis.

Abstract: A suitable dental implant which I term a submerged dental implant and which may be of either the post or blade type, but preferably the latter is provided with a relatively short, hollow, threaded neck or collar portion to which a thin temporary cap may be detachably applied.The implant including the neck with the cap applied, is then inserted in a cavity formed in the jawbone of the patient to a depth where the implant is entirely submerged. Thereafter, the mucosa (gum) is laid over the cavity completely covering the implant and a suture is applied. After a suitable period of time which may be in the order of several weeks or even months, as determined by tests by the doctor or surgeon in charge, the covering skin is removed from the cavity and the temporary cap is replaced by a tooth-receiving head member, a portion of which projects above the surface of the gum. An artificial tooth or other dental device is then applied to the head member.

Abstract: Disclosed herein is an impacted tooth ligation chain having at one end a tooth loop to encircle the impacted tooth and between such loop and its other end a plurality of eyelets. In practice, the tooth encircling loop is slipped around the impacted tooth crown after surgically exposing it by removing a flap of tissue. After tightening the loop about the tooth and surgically closing the wound, a ligature elastic thread is secured to an eyelet of the ligation chain, tensioned, and then secured to a bracket or arch wire in the patient's mouth.

Abstract: A dental retention pin has a threaded longitudinally grooved lower shaft section, an intermediate sealing section for sealing the hole in which the pin is threaded, and an upper section embeddable in a surrounding body of restorative material. A pinhole is drilled in a tooth and the pin is inserted therein by rotation to cut threads in the dentin as fluids are vented through the groove. The sealing section then enters the pinhole to establish a sealing relationship therewith.

Abstract: A height gage is disclosed including a vertical column of circular cross section with a carriage that rides up and down the column. The carriage is maintained in fixed radial position relative to the column by a longitudinal groove in the column into which a longitudinal surface is formed that extends accurately on a radius of the column throughout the length of the column. A shoe which is mounted on the carriage engages this vertical surface and maintains the carriage always in proper alignment. Means are also provided on the column and the carriage to measure the position of the carriage on the column.

Abstract: A jig for the accurate and precise measurement of rigid sheet material for making panels for geodesic dome structures. The jig is intended for use in the assembly of geodesic domes of the type having a plurality of generally flat polygonal hub plates and interconnecting struts, each hub having a recessed panel-receiving rabbet in at least some of its edges and each strut having a recessed panel-receiving rabbet in its outer edges. The jig comprises three shoes, each adapted to engage the recessed rabbets of adjacent hubs of an assembled dome which, with their associated struts, define a triangular opening into which a panel is seated to enclose the dome. Each shoe has a length which is the same as the longitudinal back wall of the hub rabbet. The shoes are connected by three elongated bars, each extending between two of the shoes and adjustably fastened thereto.

Abstract: A tracer head for effecting three dimensional tracing of a model surface in a highly efficient and precise manner is described herein.

Abstract: Disclosed is a process for cleaning feathers in a cyclone, wherein feathers are introduced into the interior of a tubular-shaped cyclone in a tangential direction thereof, so that a swirl motion of feathers can be generated in the cyclone together with the downward movement of feathers toward the bottom of the cyclone. A flow of ionized air from compressed air nozzles provided with high voltage electrodes is discharged onto the feathers in a direction transverse to that of the swirl motion. A turbulent flow is created in the cyclone, thereby permitting the feathers to be effectively opened. The impurities attached to the feathers are thus separated therefrom. Thereafter, purified feathers are exhausted out of the cyclone. Ozone generated by the corona discharge in the high voltage electrodes causes the feathers to be sterilized, deodorized and decolorized.

Abstract: A method of cooling board materials of inorganic substance wherein after aging treatment in an autoclave using saturated steam of high temperature and high pressure, the board material is left in the autoclave and the pressure therein is reduced to less than one atmosphere, and then the reduced pressure is retained at a stationary state until the temperature of the board material falls to about the temperature at which water does not boil, and then removing the board material from the autoclave. The board material may also be subjected to a drying treatment by alternately supplying saturated steam and reduced pressure after aging and prior to cooling.

Abstract: The improved spray dryer of the present invention is designed to be utilized to transform a liquid feed solution into a dry powder. The spray dryer comprises: an air supply fan which supplies the continuous flow of air required for drying at a relatively high velocity; an air heater which heats the flow of drying air to a desired, relatively high temperature; a drying chamber which receives dispersed, small droplets of the feed solution and wherein the droplets are transformed into dry particles; a novel air distribution system that directs the flow of drying air into the drying chamber so that air flowing into the drying chamber has relatively uniform temperature and velocity profiles; an atomizing system which forms and introduces the dispersed droplets of feed solution in the flow of drying air; and a powder recovery system which collects the particles dried in the drying chamber and which removes the air from the spray dryer.

Abstract: A papermakers' felt for the press or dewatering section of a papermaking machine is formed with an inner woven fabric and with a plurality of longitudinally extending, transversely spaced heavy yarns or strands which are supported on the bottom surface of the fabric by a relatively light cross-machine yarn or binder pick which interconnects the heavy strands with the warp yarns of the fabric. A batting of non-woven material is needled primarily into the upper surface of the inner fabric to form the top of the felt. The underlying strands define therebetween relatively open, longitudinally extending spaces or channels into which the water from the web of paper can flow. Some fibers of the batting intermingle and interlock with the strands to provide additional stability to the felt.

Abstract: The invention comprises a connector which can be detachably fastened at one end to the rear of a sock at or above the heel region and which can be detachably fastened at the other end to the outside of the rear or heel region of a shoe. This connector, when fastened, completely restrains riding or sliding of the sock into the shoe.

Abstract: A shoe is disclosed utilizing interrelated structural elements for dynamic cooperation with the human foot to reduce the likelihood of injury or deterioration during strenuous activity or over extended intervals of time, while affording greater comfort and ease of motion. The shoe bottom includes a sole above which a platform provides a plurality of cylindrical spaces that receive plugs in loose telescopic relationship, to define spaces for coil springs. So mounted, the coil springs are stabilized against lateral displacement.Above the platform, the shoe bottom is affixed to an upper shoe covering to define a space for the wearer's foot. At the rear quarter of the shoe upper, a heel cup stabilizes the heel of a wearer's foot against lateral, medial, or posterior displacement as well as to distribute the forces on the heel reducing the likelihood of trauma.

Abstract: A molded innersole for athletic and other shoes provides comfort and healthful distribution of weight on the foot through a construction which has laminated layers. A bottom layer of greater density and rigidity than a top layer (towards the foot of the wearer) with the construction of the top layer being softer and designed to take a partial compression set to produce a substantially permanent image of the wearer's toes, metatarsal arch and ball of the foot, at least. The upper soft layer is made of a closed cell foam and affords high impact absorption. The bottom layer is a firmer construction and performs the function when molded of retaining the general shape of the last used to make a specific shoe. Preferably both of these layers are made substantially of cross-linked polyethylene. Preferably a fabric moisture absorbing layer is provided above the said top layer, although other top layers may be used. The product is also highly resistant to tear and abrasion.

Abstract: An inner sole for a shoe consists of two flat layers of mesh joined together around their outer edges to define an internal cavity. A powder such as talcum powder or a medicinal powder can be put in the cavity before the two layers are completely joined. The sole is put in the bottom of a shoe, and the powder is able to work through the mesh to affect a foot in the shoe.

Abstract: A lightweight athletic shoe, especially a racing shoe, having a very flexible outer sole of wear-resistant material. The heel section of the outer sole is provided with a heel having such a height that the heel section has a considerably higher position with regard to the forward part of the foot than does an athletic shoe which does not have a heel. When the wearer of the athletic shoe places the heel on the ground, the heel procures for the wearer an acceleration component directed in the direction of movement.

Abstract: A snow plow especially suitable for use with small vehicles, such as cars, is disclosed. The snow plow features a hydraulic system for controlling movement of the plow from side to side as well as for elevating the plow. The blade elevating system of the present invention utilizes a bell crank means coupled intermediate the plow frame and a lifting bar located behind the vehicle's front bumper and provides important advantages over conventional lift systems. The snow plow of the present invention also includes a coupling system which permits the plow to be quickly coupled to the vehicle for snow plowing and quick removal of the plow when the vehicle is to be used for its conventional purposes. A system is also provided for locking the plow blade in its elevated position to keep it from falling while the vehicle is being driven from one snow removal location to another. Finally, the invention's hydraulic system is mounted in the vehicle's engine compartment where it can be locked to prevent theft.

Abstract: An underwater excavation system comprises an excavating implement suspended from a surface support by a carrying line and means for moving the implement horizontally between an excavation site and a spoil dumping site comprising a guide line cooperating with the carrying line and extending from the surface support to a mooring on the sea bed.

Abstract: An excavating tool having hard-faced elements supported in the material engaging surface thereof, the elements having generally planar faces disposed at an angle to the ground engaging surface.

Abstract: This buck press pad overlies a perforated metal plate or grid fitted over the buck of a garment steam and vacuum supplied garment pressing machine. The pad is multi-layered to diffuse the steam coming up through the apertures in the metal grid and through which vacuum sucks air down to press the garment. Said pad comprises one or more pairs of layers, each pair comprising a lower preferably loosely woven fiber-layer and an upper preferably closely woven fiber layer. At the top of these layers is a thicker layer of rubber of felt or other resilient material covered at its upper side by a woven top cover layer on which the garment to be pressed, is placed. The top cover layer is preferably closely woven. At least the pairs of layers of the pad, is bound by a binder of high temperature material which is preferably coated with high temperature material such as Teflon or silicone, the stitching for the binder and pairs of layers, being preferably accomplished with high temperature thread.

Abstract: An identification device including a flexible securing element and a three-part composite tag connected to the securing element. The three-part composite tag includes a pair of outer elements of complementary elliptical configuration, and a central indicia-carrying element of elliptical configuration which is complementary to the outer elements. The elements of the tag are interconnected for pivotation about a common pivotal axis for movement from a registering, superimposed position to an expanded, separated relationship. The outer elements are at least partially transparent to permit visual observation of indicia on one or both of the opposite sides of the central element.

Abstract: A family of novel perpetual and multi-year calendars is obtained by various dispositions of four calendar data components, namely (1) calendar data comprising indications of the days of the month by number, (2) calendar data comprising indications of the days of the week by name, (3) calendar data comprising indications of the months of the year, and (4) indexing feature. The calendar data components are arranged in pairs on first and second display devices, one of which is movable relative to the other. The indexing feature in the perpetual calendar designs comprises a set of seven index positions and a movable index element locatable at any one of these positions. The indexing feature in multi-year calendar designs comprises a set of seven index positions labeled with calendar data including indications of the years by number.

Abstract: A frame for pictures and the like is provided having a U-shaped edge member including a pair of arms extending downwardly from a bight and having an inwardly extending member on one of the arms. The picture is held in place by means of a sheet of a bendable, stiff material which is folded over near a marginal edge with the fold line resting against the bight and the terminal edge locked against the inwardly extending member.

Abstract: A telephone subscriber's card index includes a flat casing having a top, side walls and a front opening, a tray adapted to be pushed into and pulled out of the casing through said opening, and a pile of index cards supported on the tray and intended to have information thereon. The index includes manually operable depressible keys, with dogs on the underside of the keys, for determining, before pulling out the tray, which index card is to be presented to an operator by depression of an optionally selected one of said keys.

Abstract: A remote controlled image display device includes an assembly of contrast bodies each of which is pivotally mounted for movement between a position of rest and an optionally arrestable position and exhibits to a viewer in combination with a background surface a contrast picture which depends upon which of the two positions the contrast bodies occupy. Movement of the contrast bodies from the rest position to the arrestable position can be effected in various ways such as by means of flexible control threads attached to the bodies, or by use of air jets, and the bodies are held in the arrestable position by releasable electrostatic attractive forces.

Abstract: A reel seat for a fishing rod in which multiple perforations are provided in a foot of the reel seat prevents generation of frictional sound caused by incomplete adhesion of the foot to the fishing rod.

Abstract: A trap adapted for use in the live capture of burrowing animals in a subterranean environment, the invention comprises an elongated body open at one end to allow entry of the animal, the body being formed of a continuous upper roof portion and a grill-like lower floor portion. The grill-like structure of the floor portion is adapted to be embedded in the earthen floor of the tunnel of an animal which is to be trapped, thereby providing an inducement to a tunnelling animal to enter the enclosing body of the trap due to the provision of a natural earthen floor within the trap. A spring-actuated gate is caused to close the open end of the trap body on contact by the animal with a padded trigger plate located at the opposite end of the trap, displacement of the trigger plate resulting in dislodgement of a trigger rod from a "set" position relative to the spring-actuated gate.

Abstract: An apparatus and method for producing sound, particularly unusual sound effects, wherein the apparatus comprises at least one diaphragm and a spring attached to the diaphragm, having a lowest resonance frequency less than 18 hertz. The apparatus includes a resonator affixed to the diaphragm.According to the method of the invention, sounds are produced on an instrument having a spring and a diaphragm connected to the spring by exciting an echophone frequency of the spring by either activating longitudinal motion of the spring, jerking at least one end of the spring in a longitudinal direction, longitudinally displacing and releasing a section of the spring, and moving at least one end of the spring longitudinally in a rhythmic motion to excite an echophone frequency.

Abstract: The toy camping trailer includes a trailer box supported on a pair of wheels. The trailer has a two-piece pivotal top which may be collapsed to a travel position or raised to a camping use position. One top piece may include an open zone to permit access to the interior of the trailer while in the camping use position.

Abstract: A toy vehicle is provided for use in a toy vehicle game including an endless track defining at least two parallelly extending vehicle lanes in which two or more toy vehicles are adapted to be operated. The toy vehicle includes a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for rotating one or the other of the drive wheels in response to the direction of rotation of the drive motor, thereby biasing the car against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes. The vehicle is used on a track which includes electrical contact strips which supply power to the drive motor of the vehicles through current collectors mounted thereon.

Abstract: The apparatus includes an elongated hollow body with exposed portions of wick extending along the body and having inner portions extending into the body through openings of the body. Each end of an exposed portion is peripherally sealed with respect to the body opening through which it extends, and inner portions of the wick communicate with a chemical in the body. Exposed portions of the wick span the length of the body and the chemical is applied by moving the body horizontally across a field in a direction transverse to its length. The wick material can be braided nylon rope, and the body can be made of any selected length for multi-row application of the chemical.

Abstract: A molding process for a natural fruit of a fruit-tree or vegetable, a molding frame therefor and a molded fruit of a fruit-tree or vegetable which is produced by the above molding process and with the above molding frame are disclosed. Taste of the molded fruit is no less than that of a natural fruit. Various artificial shapes are applied to a fruit by the above molding process and frame.