Abstract: The releasable strap connector of the type used on parachute harness, has a female connector and a male connector; one or more prongs of the male connector are insertable in fitting pockets in the female connector; a rocking bar has cut-away portions intersecting said pockets so as to interlock with correspondingly cut-away portions of the respective prongs; a manipulating yoke lever is connected to the bar for rocking it into a releasing position where the cut-away portion of the bar is aligned with the pockets and the bar is withdrawn from the cut-away portions of the prongs thereby releasing the male member.

Abstract: A method is provided for making a multicolored yarn, in which the yarn is knitted into a tubular pre-fabric tape, the tape is straightened and flattened freeing it of any folds or wrinkles or the like, and is fed wale-wise in a straightened and flattened condition and printed with a multicolored design having a multiplicity of different colors in the course-wise direction, at least about every half inch or less. The resulting printed tape is set, deknitted and the resulting multicolored yarn is taken up. The yarn product has a multiplicity of short dashes of at least five different colors arranged adjacent each other along the yarn direction, and the dashes have an average length of about one inch or less.Fabric composed of the yarn, preferably of an apparel denier, has a pleasing multicolored effect.

Abstract: An anode assembly for a stationary anode x-ray tube wherein a tungsten target insert and an anode supporting metal sleeve are brazed simultaneously to the anode body. An axially tapered metal ferrule having a larger diameter than the sleeve is sealed into the end of a cylindrical glass envelope and the sleeve is inserted concentrically into the smaller end of the ferrule. The joint at the coterminous outside ends of the sleeve and ferrule is welded so as to seal and support the anode assembly in the tube envelope.

Abstract: A spindle drive for a multi spindle lathe incorporating electrically operable clutch mechanisms to engage drive to the spindles, each clutch mechanism having a part fixed to the spindle to be driven, and electromagnetic means mounted in a ring secured to the spindle mounting drum and clutch plates actuated by the electromagnetic means.

Abstract: The present invention discloses an upholstery fastener, a method of interengaging two such fasteners, and an insertion tool capable of such interengagement.Preferably the fastener takes the form of a button-like body having a thread or shank extending therefrom with an arrow-shaped head at the free end of the thread. The head includes an opening able to engage with the barbs of the head of a like fastener. The fastener is preferably moulded from plastics.An insertion tool to enable two such fasteners to be inserted, one from either side of a cushion, and thereby interengaged to quilt the cushion, is also disclosed.

Abstract: The specification discloses an insert for lining and/or relining valve guides for reciprocating-type poppet valves in cylinder heads of internal combustion engines. The insert has multiple layers of metallic materials and preferably includes an inner sleeve or tube of spring-tempered phosphor bronze and an outer carrier sleeve or tube of steel or aluminum. The combined sleeves provide the insert with high wear resistance and lubricity and excellent heat transfer properties. Separate formation and later assembly allows precise control of wall thicknesses, diameters and concentricities.Also disclosed is a method for manufacturing the insert including separately forming the inner and outer sleeves or tubes, and inserting one within the other for frictionally holding them together.

Abstract: Methods are disclosed for more practical construction of liquid-cooled buckets able to efficiently transport heat energy from the inside of the airfoil skin surface in contact with hot gas to the outer surface of preformed tubes recessed into the bucket core, through which tubes liquid coolant is passed during operation. The bucket is made of a series of preformed solid components, which are assembled, consolidated and then converted into a unified structure. In each arrangement illustrated one of the preformed solid components is a flat bimetallic sheet comprising an erosion, corrosion resistant layer and a layer of high thermal conductivity, these layers being joined by an optimized metallurgical bond.

Abstract: An improved method of making vehicle wheel rims particularly suitable for use with materials having relatively low ductility, such as aluminum, is disclosed. A circumferential drop center well is formed about the periphery of the band and work hardened so that the well material exhibits higher strength and lower ductility than the remaining band material. The strength and ductility differential between the well and band material adjacent thereto assists in confining material movement in subsequent rim forming operations and induces drawing of the rim bead seat area material.

Abstract: A tool for installing a locking strip of rubber or other material in a molding comprises an integral handle/head having a tunnel through the head at a shallow angle to allow passage of the locking strip therethrough. The sole of the head is tapered at both front and rear to allow sliding the tool forward and backward, while grooves on the side of the head displace the lips of the molding to permit entry of the locking strip and closure of the molding around the strip without damage to either molding or locking strip.

Abstract: An axle fitting tube with a key for riding in the axle keyway includes an end for contacting a tapered sleeve at the keyway and an impact member adjacent the key to concentrate impact force on a tapered sleeve key frozen in the keyway.

Abstract: An air inlet duct for a jet propulsion missile or other vehicle which is movable between a housed, pre-launch position and an extended or deployed flight position. A method of manufacturing the duct is also disclosed. The duct system includes a flexible leading edge attached to a double-wall inflatable duct body. Drop threads extend between the duct body walls to hold an exact desired contour when the duct is inflated. A pivotable plate moves the inflatable duct between a housed, deflated, position and an inflated flight position. Manufacture of the inflatable duct is basically accomplished by preparing a foamed plastic form in the desired duct wall shape, covering the form with fabric, stitching through the foam and fabric, coating the fabric with a flexible sealing compound, dissolving away the foamed plastic and attaching the resulting inflatable duct to other missile components.

Abstract: A method of stringing a compound archery bow. A preswedged off-end of a first cable is mounted to a mount on a first pulley. The first cable is then extended to a second pulley, wrapped in a grooved section of a central circumferential surface of the second pulley, strung in a slot on one sidewall of the second pulley, and passed through a central aperture of the second pulley until a mount chip is directly adjacent a stepped section of another slot on the other sidewall of the second pulley. The cable is then strung into a slot on the other side and the mount chip is inserted into the stepped section. The remaining length of the cable is wrapped in another grooved section of the central circumferential surface of the second pulley and the end of the first cable is then attached to the bow string. A second cable is then strung by following the steps of the method for stringing the first cable in reverse order.

Abstract: This invention relates to grasping surfaces for the handles of implements, such as sporting equipment, and to methods of packaging and preparing same for application, and to methods for applying same to such equipment, and in one embodiment comprises at least one tube of elastomeric material which has been rolled back on itself to form a ring-like or grommet-like structure which is spiral in cross-section and has been positioned on a support core from which it may be rolled onto the handle portion of the implement which it is to cover and then unrolled to form a continuous covering for grasping purposes.

Abstract: A numerically controlled machining center has a tool magazine, automatic tool changer, workpiece shuttle, and a workpiece magazine which holds enough workpieces for operation by the machining center for an entire shift of approximately eight hours. The numerical controls are programmed to perform predetermined machining operations on each workpiece, in turn, and to replace each finished workpiece with a fresh workpiece at the end of each machining program. A proximity switch is mounted on the machining center for checking tools to detect broken or incorrect tools. The tools are positioned adjacent to the proximity switch and are rotated while the output of the proximity switch is counted for one complete rotation of the tool to determine the number of radially extending teeth on the tool. If the tool has too few or too many teeth, thus indicating a broken or incorrect tool, it is replaced by another tool of the same type.

Abstract: A machine tool is provided with an exchange arm for automatically exchanging tools between a tool spindle and a tool magazine. A drive key and a detent pin protrude respectively from the tool spindle and each of the tool storage portions of the magazine and are engageable, with a predetermined play, with a key-way of each tool. A fine indexing device has a rotatable cam drum on which a first cam segment is formed for indexing the tool spindle to a predetermined angular position following a coarse indexing operation by a coarse indexing device. A second cam segment is further formed on the cam drum to rotate the tool spindle more than the play from said predetermined angular position after a fresh tool is inserted into the spindle, so that a positive engagement between the drive key and the key-way of the tool can be achieved.

Abstract: A printed circuit base board comprising an insulating substrate having a thin electric circuit layer composed of an electrically conductive material on one surface is disclosed. This printed circuit base board is drilled at parts of the insulating substrate contiguous to component lead attaching land-forming portions of the electric circuit layer from the opposite surface of the printed circuit base board, while leaving the land-forming portions undrilled, so that composite lead-inserting holes having a size sufficient to insert component leads exactly therein and having one end closed on the side of the land-forming portions of the electric circuit layer and the other end opened are formed.

Abstract: A holding part is affixed to the holding member of pruning shears and extends perpendicularly from the backing surface of said holding member along a blunt corner edge thereof. A clamping part is slidably mounted on the facing surface of a blade of the pruning shears for movement in directions toward and away from the cutting edge of the blade. The clamping part extends perpendicularly from the facing surface of the blade and has the same configuration as the holding part. The clamping part is spring-biased in position spaced from the cutting edge of the blade in a manner whereby when the shears are fully closed after severing a stem, the clamping part and the holding part securely clamp the severed stem between them.

Abstract: Rotary Vegetation Cutter is comprised of a housing, which is arranged for rotation about a central axis, having a plurality of cylindrical reel receiving cavities located in it with a line supply aperture passing between each cavity and the periphery of the housing. A supply reel is rotatably located in each cavity and a flexible non-metallic line has an inner portion which is wound around the reel and an outer portion which passes through the associated aperture and extends outwardly of the periphery of the housing. Wedge-shaped teeth located on one face of the reel are urged into engagement with like configured notches located in the cavity by a spring element, which is integral with the other face of the reel, to prevent rotation of the reel due to the centrifugal force on the line when the housing is rotated.

Abstract: A rotary cutter head mounted on the end of a handle to power rotate at high speed one or more centrifugally whirled free ends of a reserve of nylon line wound on a spool co-axially pivotally mounted within the head.A co-axially spring biased indexer is subject to inertia applied through the handle while the device is running to effect the feeding of precise increments of line from the spool to the free line ends. The indexer is automatically self-inhibiting when the line ends reach a predetermined optimum length of approximately eight inches and continues to be self-inhibiting until the line ends wear down, in use, to less than a predetermined minimum length of approximately five inches.

Abstract: A chain saw gauging attachment comprising an elongate, slender gauge rod having at one end a fitting with a bore adapted to receive said end, and means for firmly attaching the rod to the fitting. The fitting has a threaded bore aligned with the first bore and adapted to be threaded onto the protruding portion of an existing stud of the chain saw frame, so as to extend laterally from the latter and from the chain track. As thus mounted, the gauge rod extends along the length of a work piece or log which is to be cut, and the free end of the gauge rod enables the user to fix by sight the place on the log where the next cut is to be made. A knurled periphery of the fitting facilitates its being screwed onto the existing threaded stud. The gauge rod is slender and resilient, whereby it springs back to its original shape if accidentially flexed. The rod can be cut to a desired length, and can have a bend at its free end to facilitate the designating of the place for the next saw cut.

Abstract: A dental implant of biocompatable material includes a body provided with a head for supporting bridgework or an artificial tooth and having a shaft which is provided with a series of exterior peripheral surfaces of diminishing cross-section to define a series of stepped thrust resisting surfaces perpendicular to the axis of the shaft with the proximal end of the shaft being smooth.

Abstract: A thin articulating film which is susceptible of folding, wrinkling, crimping and the like is held taut in a generally U-shaped frame to which the film is permanently affixed at a part of its periphery. The edge of the film spanning the ends of the arms of the frame is unframed. The frame can be integral with the film. Devices for full-arch, anterior-arch and quadrant occlusal adjustment, and for contact adjustment between two adjacent teeth in one arch or another where one tooth or both may be a restoration, are described.

Abstract: A control assembly for a dental apparatus wherein delivery of operating air, coolant air and coolant water to the dental hand piece is controlled through the operation of normally spring closed pilot valves which are operated to the open position by application of pilot air, delivery of which from the source of pressurized air is controlled by a foot operated valve so as to ensure delivery of coolant air or coolant water when needed when operating air is being delivered to the hand piece.

Abstract: A holder for turbine-driven dental tools such as drills. The holder is made of two-parts comprising an elongated shank and an anglepiece having a head in which is mounted an air-driven turbine for driving the dental tools. Provision is made by a coupling structure for attachably coupling the anglepiece to the shank. A finger-grip sleeve is provided on the coupling structure that allows the holder to be held in position while angularly positioning the holder angularly at set angular positions relative to the sleeve. The operator can thus hold the holder at a desired position and still rotate the anglepiece angularly by rotating the shank about its axis.

Abstract: An improved articulator for monitoring and correcting masticatory surfaces of the upper and lower jaw portions of a dental prosthesis model is provided. The improved articulator includes a frame and two reproduction bodies movably mounted on the frame that are respectively designed to carry an upper and lower jaw portion of a dental prosthesis. Articulation means connected to the reproduction bodies move the bodies three-dimensionally in relation to one another to copy the articulative movements of a patient. Compensation means connected to at least one of the reproduction bodies provides three-dimensional adjustment of a jaw model portion in relation to the reproductive body, when the jaw model is attached to the body.

Abstract: Honing and polishing instrument especially intended for dental use and being provided with a rotatable shaft. A replaceable honing or polishing unit made of a flexible elastic material can be attached to the free end of the shaft. An undercut indent in the unit embraces a radial sleeve at the free end of the shaft. The shaft also has an end portion extending axially beyond the sleeve which is inserted in a corresponding bore at the bottom of the indent in the unit.

Abstract: Apparatus for decorating eggs and the like. The apparatus includes a support for rotating an egg about its longitudinal axis and an arm member for carrying a marker and mounted for marking movement longitudinally of the egg. Coordinated rotation of the egg and manipulation of the arm member result in creating a decorative marking on the egg.

Abstract: In an electronic tape measure wherein the results of measurements are visually displayed on a display through the use of a counter, there is provided a keyboard unit for introducing a specific quantity into the tape measure. It further includes alarm means for providing an alarm signal when a tape is drawn in an amount to correspond to the specific quantity previously loaded into the counter via the keyboard unit.

Abstract: Apparatus for gauging the wear of a toothed sprocket includes a flat body defining a plurality of peaks about the periphery thereof. A pair of such peaks are brought into contact with adjacent flanks of adjacent teeth of the sprocket, and another peak, intermediate the pair of peaks, is brought adjacent the root area of the sprocket between such adjacent flanks, so that wear of a sprocket in such area can be observed.

Abstract: A drawing template for forming relatively large alphanumeric characters is comprised of a thin substrate in which a plurality of both linear and non-linear slots are formed. Lines drawn through selected ones of the slots form an outline of a desired character.

Abstract: The hand held measuring device measures the circumference of a cylindrical rod by moving the rod through a measured path between two cylinders. An ink marking device is used to place an index mark on the rolling rod and a transparent scale is used at the end of the measured surface of the outer cylinder to indicate the distance the rod has travelled. Coincidence of the index mark with the scale reading is a measure of the circumference of the rod. The device is operated manually via a hand wheel secured to a trunnion of the inner cylinder.

Abstract: Artificial horizon indicators are precise, gyroscopic flight instruments designed to furnish an aircraft pilot with an artificial indication of an aircraft pitch and roll attitude with respect to earth. Basically, such indicators include a gyro gimbaled within a frame which is fixed to the aircraft. Roll indicia is responsive to the gyro for rotation within a display window as a part of the frame about an axis parallel to the roll axis of the aircraft. A spherically shaped horizon indicating member is also responsive to the gyro for movement within the display window to remain parallel to the actual horizon during flight of the aircraft. The spherical horizon indicating member is pivotally mounted to the frame between the gimbal axis of the gyro and the roll indicia. The coupling of a horizon indicating member to the gyro includes a two stage three pin drive to present the aircraft pilot a uniform movement of the horizon indicating member for movement of the aircraft about the pitch axis.

Abstract: A method is disclosed for thermal dehydration of brown coal, by which an excellent heat recovery can be accomplished. The method includes the steps of admixing raw brown coal with a solvent to prepare a slurry, preheating the slurry in a heat exchanger, heating the same at 100.degree. to 300.degree. C., passing it through a gas-liquid separator to separate it into a steam-containing vapor and a dehydrated slurry and recoverying the dehydrated slurry while the steam-containing vapor is recycled to the heat exchanger so as to be utilized as a heating medium for preheating the slurry.

Abstract: Rubber and plastic extrudates are passed through a fluidized bed wherein they are simultaneously cooled and supported by gas-cooled, fluidized particles. In a preferred arrangement, the fluidized bed is provided with gas, cooled to a plurality of different temperatures, in order to provide a controlled cooling rate. By this technique, extrudates can be cooled as fast as they can be extruded with minimal thermal degradation, distortion, and marring.

Abstract: The arrangement for the drying of solvent at a drying channel with a hot inert carrier medium, under application of compression and adiabatic expansion for the condensation of the solvent, and under reheating of the solvent to the channel temperature is provided in such a manner that a heat exchanger is arranged to follow a compressor for the nitrogen, containing solvent vapor, taken from the drying channel, which heat exchanger is passed through by the carrier medium, drawn from the drying channel and flowing through a pipeline loop, that a condenser arranged follows the compressor for the solvent vapor, on the one hand, feeds the expansion stage, and, on the other hand, is cooled by the nitrogen, cooled in the expansion stage, same being heated to the channel temperature, and that the heated nitrogen is fed into the drying channel. Thereby an energy application as economical as possible in the drying channel is achieved, under general avoidance of external heating.

Abstract: A polypropylene wig supporting framework and method of manufacture. The wig drying framework includes two symmetrical frameworks each shaped somewhat like half of a human head. Each of the symmetrial frameworks includes an integral half-elbow member and two integral support members. The two symmetrical frameworks are connected by means of a thin polypropylene hinge strap approximately 40 mils in thickness. Each symmetrical framework includes a plurality of spaced vertical and lateral members which are integrally joined at intersections thereof. Each symmetrical framework includes a plurality of integral fastening members which may be aligned and snapped together to fasten the two symmetrical frameworks together to provide a single head-shaped wig supporting framework and associated supporting members. The fastening members include rigid "tongue" members and "hinge" members having small openings therein to snap over ends of "tongue" members.

Abstract: The described apparatus has utility as a doctor on a paper machine, as a drying element in an aircap dryer and as a sealing element in such a dryer. It involves a foot portion having an outer surface generally conforming to the curvature of the cylinder surface on which it is used. It is resiliently supported in close juxtaposition to the cylinder surface so that a gap diminishing in thickness towards one longitudinal edge of the foot portion is provided. At least two rows of nozzles communicate through the foot portion in order to project pressurized air into the gap. Each nozzle is angled relative to three orthogonal planes, one of which is tangent to the cylinder surface at the point where the nozzle axis meets the surface, another of which is parallel to the longitudinal edge of the foot portion. The flow from the nozzles is such as to support the foot portion and to seal the support flow from any disorganized flows.

Abstract: A typewriter and the like utilized as an instructional aid device has control means for teaching alphabetical letter recognition, the sequence of letters in forming words and the association of a word to the picture of an object. A coded card, the preferred control means, carries the word related to the object, and optionally the picture of the object, and includes a series of perforations related to the word, which perforations are adapted to be penetrated by attachments carried on the key bars only when a key is struck in proper sequence. If an incorrect key is struck the device does not function. Card advancing means are provided to advance the card after each correct key is struck in proper sequence. In the absence of a control card, the typewriter and the like can be operated in a conventional manner.

Abstract: An educational game board for teaching arithmetic. The game board has a group of holes in a grid arrangement with a first group of slides beneath and parallel to the holes in one direction, and a second group of slides beneath the first group of slides and parallel to the holes in the other direction. Each of the slides has a first position in which the slide is under the holes and a second position in which a hole in the slide is under the holes. There is a third group of slides disposed diagonally of the grid, each slide in the third group of slides having a first position in which the slide is under the holes and a second position in which a hole in the slide is under the holes.

Abstract: An odor and moisture absorbing insole or insock for covering the inner sole of footwear has a bottom open cell latex foam layer with a smooth bottom skin for engaging the bottom inner sole of footwear, an intermediate noncellular latex layer with discrete activated charcoal particles dispersed throughout and locked in this layer, a porous slippery abrasion resisting top fabric layer protecting the foot or sock of the wearer against discoloration or irritation, and spaced perforations extending through the three layers to enhance the circulation of air toward and away from the foot of the wearer into intimate contact with the charcoal in the intermediate layer as the open cell bottom foam layer is alternately compressed and expanded upon application and release of foot pressure on the insole as when walking. The open cell bottom layer and the top fabric layer are free from charcoal, and discoloration of the footwear, foot or sock is eliminated by bonding the charcoal particles in the intermediate layer.

Abstract: A scoop like frame releasably mounts a trailing plastic bag to pick up snow from the earth and transport it. The back of the bag is provided with a drawstring closure mechanism to open the bag for snow deposition after transport. The frame has an associated forwardly extending handle mechanism to aid transport and allow change of frame position between the scooping mode and transporting mode.

Abstract: A bucket using a box-like parallel-sided basket open at the front for dredging the sea bottom to collect nodules. The basket has a bottom wall with front and rear cross-bars and a plurality of parallel spaced rods extending longitudinally of the basket between the front and rear cross-bars. A front part of the bottom wall includes a grill formed by a transverse front link supporting one end of a plurality of longitudinal spaced flexible elements which are inclined downwardly towards the front and stretched between the front cross-bar and the transverse front link. Large shoes are positioned on lateral sides of the basket for supporting the bucket on the sea bottom. The grill is situated between the shoes with the transverse front link positioned in such manner that it penetrates the sea bottom. The basket is positioned inside the shoes and extends to the external edges of the shoes. The shoes include brackets for connecting a dredging line to the bucket.

Abstract: A prefabricated laminating packet is provided having two laminating sheets thereon with a pull tab detachably attached thereto adapted for use in laminating machines. In accordance with a preferred embodiment of the invention, the pull tab has a series of notches therein which serve to locate the packet within a laminating machine and also which enable the machine to work only with packets designed for that particular machine.

Abstract: A multislide holder and editor comprises a rectangular plate-like body having a plurality of rectangular slide-receiving pockets formed between two sets of parallel ribs disposed at right angles to one another. Upon insertion into its respective pocket each slide enters two spaced parallel open-ended side edge engaging channels, each channel comprising two spaced edge-engaging members. One of these edge engaging members comprises at least two longitudinally spaced portions with a gap between them, while the other cooperating member is disposed opposite this gap and is of not greater length than the gap, so that the entire body can be formed by a single molding operation with linearly-moving relatively simple mold parts.

Abstract: The present improved display device permits the improved viewing of such specimens as transparent films, both negatives and positives, translucent objects, such as drawings and water-color prints, selected minerals, and opaque objects smaller than the viewing plate of the device.The device is inexpensive to make and use and operates economically on a low wattage light source. The device includes an open topped box with a light, such as a low wattage electric light, therein. To the top of the box is affixed a translucent display sheet, while a frame which is preferably glassed in, is hingedly connected to overlie the display sheet so that speciments can be easily placed on and removed from the display sheet.The distance and angle between the light and the display sheet preferably can be varied so as to provide different display effects. In one embodiment, the light is secured at a distance from the center on the box bottom and the sidewalls with attached display sheet are rotated relative thereto.

Abstract: Apparatus for mounting signboard paper in large sheets or in elongated strips, and for holding the signboard paper in tension over a slightly curved board transparent surface, and including moveable tensioning devices.

Abstract: A teeter-totter or see-saw track section including a base part interposable in a track system and a super track part mounted on the base part for oscillation about a generally horizontal transverse axis, together with electrical connection means between the base and super track parts to enable an operator to effect powered control of a model vehicle on the super track part.

Abstract: A suspension device for slideable and pivotal suspension of a base plate for toy building sets or base boards for visual planning panels. One face of the base plate or board is provided with rows of coupling studs including a plurality of studs uniformly spaced apart in both longitudinal and transverse directions, and the suspension device includes a gripping member having inwardly projecting guides adapted to slide along the base plate between a pair of rows of projections and to support the base plate when suspended on a wall. The device is further provided with a hinge member pivotally mounted on top of the gripping member, so as to provide for pivotal movements of the base plate relatively to a wall on which the base plate is mounted by means of the slideable suspension device.

Abstract: A structural element of a toy construction kit comprises a hollow structural member having an inner passage, formations for connecting this structural member with another structural member, and a cover member detachably engageable in the inner passage of the structural member and provided with formations forming an aperture, such as a window or a door. The cover member has at least a pair of slots extending from one of its ends toward another end and forming therebetween a section which is separated by the slots from a remainder section of this portion. The thus-formed section has an outer surface provided with a projection. The slots may extend up to the other end of the portion of the cover member.

Abstract: A toy figure has a head, a trunk, legs and arms wherein accessories such as representations of clothes made from an essentially non-deformable material can be mounted at the region of the trunk. To enable accessories to be mounted easily and reliably, to afford wide freedom in the shaping of the accessories and closely to approximate them to the natural appearance, the front and/or rear of the trunk has at least one detent member at which an accessory can be removable secured by a counterpiece fixed to the accessory. The accessory extends only over the front or rear of the toy figure and laterally around the trunk to about the vertical plane passing through connections of the arms.