Abstract: An assembly of fiber-drawing rollers, used for stretching rovings or fiber bundles in a spinning machine, is divided into a plurality of stages each including an elongate driven roller and a set of coacting counterrollers, the driven rollers being rotated at predetermined relative speeds with the aid of several motors including at least one pair of synchronous motors positively coupled with a drawing roller at opposite ends thereof. These synchronous motors are energized with three-phase current of a frequency determined by the setting of a digitally adjustable frequency selector controlling a solid-state frequency inverter. The selector comprises a frequency divider in the output of a preferably also adjustable source of timing signals which may be a pulse generator driven by a motor coupled with another drawing roller.

Abstract: This invention relates to a jewelry clasp for securing opposite ends of a necklace chain, and more particularly to a double fold over jewelry clasp providing two sets of interlocking fastening means.

Abstract: A composite burial vault is provided having a hollow liner constructed of a synthetic plastic material which is filled with concrete. In constructing the burial vault, a liquid bonding agent is applied against the liner. The bonding agent can be either an adhesive or a solvent which acts upon the plastic material or a combination of the adhesive and the solvent. Before the bonding agent dries, aggregate is applied to the surface of the liner preferably by a flocking gun. Alternatively, the bonding agent and aggregate can be simultaneously sprayed against the liner. As the bonding agent dries, the aggregate is bonded to the liner either by the adhesive and/or by a portion of the aggregate partially embedding in the liner. Concrete is then poured between a mold and the treated surface of the liner where it forms a mechanical bond to the coarse aggregate coating on the liner. Reinforcement strips are provided to strengthen the corner edges of the liner.

Abstract: A bulking device for making loop yarn, comprising a base with a blowing chamber, a pin insert with a yarn feeding channel and a jet insert with a yarn delivery channel, followed by a diffusor, the axis of which runs at an angle to the jet axis and which is followed by a cylindrical channel section.

Abstract: A method of making a center electrode for a spark plug comprising uniting together, by heating and without the use of brazing materials, slugs of copper and nickel alloy and then extruding the united slugs to form a central electrode having a copper core and a nickel alloy sheath.

Abstract: A method of manufacturing an acoustic surface wave device comprising: forming two pairs of transducers, a multistrip coupler and lead patterns for electrically shorting at least one pair of the transducers on a piezoelectric material; mounting the piezoelectric material on a package base having pins; bonding the electrodes of the opened transducers to the pins by wires, and; testing the device by applying and obtaining signals of the opened transducers through the pins. In this manufacturing method, testing is carried out without using probing technology.

Abstract: A high-voltage type photoflash lamp filled with a filamentary combustible material and oxygen and having an ignition structure including a pair of spaced-apart lead-in wires sealed in one end of the glass envelope of the lamp and encapsulated within an interior protruding portion of the envelope glass. The termination of each of the lead-in wires within the envelope is bare of sealing glass and substantially flush with the surrounding glass surface, and a coating of primer material about the inner end of the protruding portion of glass within the envelope covers and bridges the bare terminations of the lead-in wires.

Abstract: A device for applying pressure to a surface. A base member has a contacting means mounted on its lower face and a pressure conveying means mounted on its upper face. The user applies pressure to the device through handles. The pressure is conveyed through the handles, carrier members, and axles to rollers. The device is lightweight and portable such that it may be used on walls, ceilings, and in confined spaces as well as for conventional floor installation.

Abstract: A separable blade agitator has a glass coated drive shaft and a glass coated impeller interference fitted to the end of the shaft in a gasketless, glass surface to glass surface joint. The interference fitting of the impeller to the shaft is accomplished by super cooling the end of the shaft with nitrogen or the like so that it can be inserted into a glass coated bore in the impeller.

Abstract: A solar liquid-to-liquid heat exchanger, method of making the same, and hot water heating apparatus employing same are provided wherein such heat exchanger is comprised of a first tubular member made of a heat conductive tube material and having a plurality of turns, a second tubular member made of a heat conductive tube material and having a plurality of turns which correspond to and are fixed against the turns of the first member to provide a strong mechanical and thermal connection between immediately adjacent faces of associated member turns. The fixing of the turns of the members and utilization of the heat exchanger in a hot water heating apparatus with flow of a solar fluid used in such apparatus in one direction through the first tubular member and water to be heated through the second tubular member in counterflow to the one direction assures optimum transfer of heat from the solar fluid to the water to be heated.

Abstract: The invention relates to a method and a device for making lower leg prostheses, comprising a prosthesis sleeve, a prosthesis foot and a connecting member interconnecting said prosthesis sleeve and said prosthesis foot. In said method the desired position of said prosthesis foot in relation to said prosthesis sleeve is determined and a prosthesis sleeve is then formed on a prosthesis sleeve positive while simultaneously securing said connecting member to said prosthesis sleeve in the desired position.A support device for use in said method comprises first fastening means for a support for said prosthesis sleeve positive and second fastening means for mounting adapter means for said prosthesis foot, said first and second fastening means being adjustable in relation to each other to permit reproducible setting of said fastening means corresponding to a desired positioning of said prosthesis foot to said prosthesis sleeve.

Abstract: This invention relates to a method of producing a mold for use as a part of a tool for shaping of moldable material and having relatively high strength and heat resistance characteristics. According to the invention there is formed a porous body of sinterable material in contact with a pattern to form a material shaping surface on the body; the body when still in contact with the pattern surface is sintered and the sintered body is at least partially filled with infiltrating material having a melting point lower than that of the sintered body. The infiltrating step is effected in such matter that the pores of the surface of the sintered body in contact with the pattern surface are filled by infiltrating material from the side of the body opposite to the pattern surface whereby also the infiltrating material which fills the pores of the sintered body in the surface thereof is formed by the pattern surface.

Abstract: A strap cutter is secured to the top structure on an oil well casing and as the discharge pipe supporting a submersible pump is withdrawn, the cutting head of the strap cutter engages with and cuts the straps which secure the pump power cable to the discharge pipe. The strap cutter is manually guided into place but employs the upward motion of the discharge pipe string to supply the cutting force. The method comprises the use of the upward motion to accomplish the cutting step.

Abstract: A method of sealing an electric heating element having an electric heating wire inside a tubular metal sheath and electrically insulated therefrom by a compacted filler, comprises impregnating the filler at and in the vicinity of the end of the sheath with an electrically insulative solution and compressing the sheath in said vicinity such that said electrically insulative solution substantially permeates the interstices within the impregnated filler.

Abstract: A device for assembling printed circuit boards with an optical illuminating system for illumination of the holes in the printed circuit board into which components are to be installed. The optical system, or a mirror forming a portion thereof, is arranged, on a pantograph linkage for example, so as to be maneuverable above and parallel to the circuit board. The optical system is provided with specially mounted shutters which can be moved specified amounts to direct the light to precise selected locations on the circuit board.

Abstract: The invention relates to a machine for automatically stacking plate groups for storage batteries. It comprises a plate separating means of separating plates one by one from a hopper and delivering them to the next step, a separator supplying means of supplying separators so as to rectangularly cross the delivered plates, a separator sealing means of sealing the side portions of the separators folded into two and coating the plates, a plate group unit assembling means for overlapping the plates coated with the separator with the opposite plate so as to be a unit, a plate group block assembling means for stacking a predetermined number of plate group units so as to be a block and a conveying means of conveying the plate group blocks to the next step and the respective means are so formed as to be operatively connected with one another.

Abstract: A safety razor including a replacable container inserted into the handle, the container having a pressurized beard-wetting agent therein that is dispensed in selected amounts, by a mechanism, toward the razor head where foam rubber pads absorb the agent and dispense it onto the skin in front of the blade edge.

Abstract: A hair cutting device includes a housing defining a passage having an inlet and outlet with a cutter and an impeller between said inlet and outlet. A hair directing apparatus is positioned between the cutter means and the impeller to direct the hair to the periphery of the cutter and the inlet is adjustable with respect to the inlet. The cutter includes two blades one of which is rotated with an output motor shaft and the other is reciprocated on the output shaft. The drive motor is reversible and a heating element can be attached to the outlet to convert the device to a blower-dryer.

Abstract: A combination transfer depth gauge capable of measuring the depth of small diameter blind holes in close proximity to the shoulder of a workpiece is made up of a bar stock body having opposed flat end faces and a longitudinal throughbore. One end portion of the body is milled off to provide an offset face that intersects the throughbore. A small gauge wire is slidably mounted in the bore and is clamped to the body by a nylon setscrew.

Abstract: A drafting board tray for use in a drafting board having a cable guide track mounting for use with a straight edge assembly slideably adjustable on the cable guide track. The tray is disclosed to be pivotally attached and pivotally adjustably positionable at each end to two base mounts which are slideably adjustable on the cable guide track.

Abstract: A combination drafting instrument including a beam compass, a magnifying glass, a protractor, a proportional divider, an architectural scale, an engineering scale and other scales in a single self-contained package in order to perform most ordinary drafting procedures.

Abstract: Lint is automatically separated continuously from a dryer exhaust stream, rolled into string-like masses and released from a collecting screen where it is picked up by an auger conveyor and transported to a storage receptacle in compacted form.

Abstract: An apparatus for containing and drying an animal having an enclosure formed of an upper and a lower section. The upper section is of a cage-like configuration formed from interconnected bars. The lower section has an inner housing disposed therein with the inner housing having opposed side and end panels and a flooring panel spaced from the side and end walls and flooring of the lower section. The inner housing is provided with a plurality of holes and a door is provided in one end of the enclosure to allow entrance and exit of the animal. A blower is connected to the lower section and forces heated air into the lower section and between the space between the lower section and the inner housing and through the holes in the inner housing to dry the animal contained therein.

Abstract: Removable, adjustable, foot-supporting and foot-positioning, orthopedic inserts for selectively and correctly supporting and positioning bottom regions of the foot, which are constructed and designed for use in athletic or sports footwear, including shoes and boots, whereby the foot is selectively and correctly supported and positioned in the footwear, and the leg, in turn, is selectively and correctly supported and positioned relative to the footwear.

Abstract: This invention is an orthopedic shoe particularly characterized by special configuration, both on the portion of the shoe which is in contact with the foot and the portion which is in contact with the surface to be walked upon. It is particularly characterized by special openings with various types of removable closures to the openings to accommodate unusual problems and by removable build-up layers for foot contact. It is further characterized by rigidity and a "rocker" configuration with a fully adjustable and removable upper fastening member.

Abstract: A sports shoe has an extension to the sole of the shoe projecting rearwardly at the heel end, which extension is springily resilient or can be supported by resilient means on the shoe. A stiffener, for example, a metal plate can be provided to enable the resilience of the extension to be controlled. Also a separate interchangeable spring member can be provided to control the resilience of the projection.

Abstract: A trench digging apparatus comprising a cutter wheel with picks projecting from the outer periphery thereof. An electric drive motor is provided to rotate the cutter wheel about a substantially horizontal axis. The cutter wheel is supported by a support frame which is pivoted to a basic framework of the apparatus by spherical and eccentric hinge bearings. These hinge bearings allow a limited amount of movement about a vertical axis as well as pivotal movement about a horizontal axis. The movement about a vertical axis allows the cutter wheel to turn or be oscillated to free the apparatus, correct for crabbing or enhance cutting, and the movement about the horizontal axis enables the trench depth to be varied.

Abstract: Identification bands, particularly for use in hospitals as identification bracelets and other patient related labeling requirements, made up of a number of tapes laminated together by pressure-sensitive adhesive, including a transparent tape as an outer tape, with an insert underlying the transparent tape and have preprinted identification indicia on its face facing the transparent tape, at least one of the tapes being a pressure-sensitive tape having pressure-sensitive adhesive on one surface thereof, part of which is at an end of the band adapted to be exposed, with release means covering the pressure-sensitive adhesive at said end, and methods of and apparatus for making the bands.

Abstract: A diapositive frame for mounting projection slides and the like comprising two frame halves, each having rectangular picture areas therein, and position indicating indentations along marginal section edges. The two frame halves can be joined to form the diapositive frame in two respectively different positions and as thus joined, the indentations serve to provide information as to horizontal or vertical positions of the diaframe.

Abstract: This invention relates to a holder for motor vehicle registration plates and consists of a backing member which is adapted for attachment to a motor vehicle and a frame made from a plastics material which covers the periphery of the registration plate when located on the holder and includes a first formation adapted to bear on the periphery of the plate and a plurality of second formations which by resilient transverse deformation of the frame are engageable with the underside of the backing member to lock the plate between the backing member and frame.

Abstract: A compact, integrally molded message control center having a configuration easily and expensively formed by conventional molding processes including a plurality of upwardly opening parallel receptacles suitable for messages and an open bottom suitable for storage is provided. The front wall of the unit is inclined at an angle toward the back of the unit and supports a digital time and date unit and a cross lined chart on which personnel availability and location may be maintained by the movement of magnetic markers. Coordinated indentifying indicia are positioned along two sides of the unit, and these indicia are further coordinated with other indentifying indicia positioned on the front of the unit in combination with the chart.

Abstract: A rifle having a stock, a receiver, a barrel, a trigger assembly, a magazine, and stock inserts forming mounting blocks for supporting the receiver in the stock. The magazine is a removable integral sheet metal member with inwardly turned longitudinal retainer flanges along the top rear edges of the side walls, a vertical internal retainer boss along each side wall spaced forwardly from the retainer flanges, cartridge case loading ramp edge surfaces along the top edge of each of the side walls of the magazine spaced from the longitudinal retainer flanges, and internal stops on the side walls for limiting the upward movement of a follower within the magazine. The stock inserts are longitudinally spaced mounting blocks having upper cylindrical surface portions fitting the cylindrical surface of the bottom of the receiver along the forward and back ends of the receiver and rectangular side, bottom, and end surfaces for mounting the stock inserts in rectangular cavities in the rifle stock.

Abstract: A fishing device presents lures or bait just off the bottom of a stream, lake, or river. The device includes a sinker having a streamlined body, an L-shaped wire, and a pair of trailing legs. The L-shaped wire has a first attachment loop at the top end of the upper leg for attaching a fishing hook assembly, and a second attachment loop at junction of the upper and lower legs for attaching a fishing line. The lower end of the L-shaped wire is embedded in the sinker. The trailing legs have their front ends embedded in the body of the sinker and extend rearwardly out of the rear end of the sinker to form a V pattern. The tail wires assist in keeping the device upright when trolling, casting, or even when stopped, and propel the device out of rocks and crevices.

Abstract: A rotary insect trap is provided comprising a receptacle having an opening which is closed by an elongated rotor having a number of wings. Some of the wings are always in contact with the opening boundaries closing the interior of the trap receptacle against the surrounding. The rotor wings extend substantially across the whole length of the rotor and are shaped or made with a plurality of slots being in parallel with one another and extending rectangularly onto the rotor axis so that they separate gill-shaped radial portions of the wings from one another. A comb-shaped member comprising a plurality of teeth, pins or gills is arranged in the opening so that the teeth or the like engage each individual slot in the rotor for cleaning the surfaces of the wings when the rotor is rotated. The rotor can comprise a plurality of radial gills mounted spacingly onto a rotor shaft or can be moulded as an integral piece.

Abstract: A rolling toy that comprises a spherical weight within a container. A representation of a face is on the container's surface. The container is contoured such that it can roll or tumble. The container is so proportioned to produce a variety of random rolling or tumbling modes that are psychologically unanticipated by the user.

Abstract: A toy animal or object embodies a sound emitting system to produce a sound characteristic of the animal or object represented. The sound emitting system has electronic sound generating circuitry and an actuator. The actuator is responsive to water to turn on the electronic sound generating circuitry for production of the sound.

Abstract: This invention relates to a thermal window construction which comprises a fixed frame member and a movable frame or operating sash member. The window is characterized in that the operating sash member includes an outwardly facing glazing surface to which a pane sub-assembly comprising two or more glass lites are connected, the bond between the pane sub-assembly and operating sash being provided by a bead or quantity of silicone interposed between an inwardly directed surface of the sub-assembly and the glazing surface through a laterally open channel, whereby complete filling of the said space may be assured. The overlapping areas of glass and metal bonded by the silicone rubber material are coordinated with the glass expanse and weight in such manner that the stress applied to the bonded areas will not exceed about 20 p.s.i.

Abstract: A cylindrical grinding machine having a base for supporting a rotatable workpiece, a wheelhead assembly mounted on the base for horizontal displacement thereon including a grinding wheel for effecting stock removal from the workpiece, a housing for rotatably supporting and guarding the grinding wheel, a selectively advanceable dressing tool for dressing the grinding wheel, a coolant assembly including a horizontal member and a vertically downwardly extending nozzle mounted for slidable movement relative to the housing as the grinding wheel is reduced in size so as to continuously maintain the downwardly extending coolant nozzle vertically above the area of the grinding wheel which grindingly engages the workpiece.

Abstract: A smoothing and cleaning tool for molded ceramics comprises an elongated main body of spring wire having reverse bends at its ends to form a pair of spaced opposed springable legs which are normally parallel to the main tool body. Fastening devices are mounted on the leg ends for securely attaching to the opposite ends of a flexible elongated abrasive cleaning pad which is freely suspended therebetween in a taut condition and which is substantially spaced from and parallel to the main tool body. When the tool is held in the hand and the pad rubbed against the ceramic article for smoothing and cleaning, the tool legs as well as the fastening devices and pad ends springingly move toward the main tool body in an amount depending upon the extent of pressure applied. The direct pressure applied to the freely suspended pad is thus absorbed by the springable legs through the fastening devices.

Abstract: Apparatus adapted to move longitudinally through a pipe section and comprising a rotatable head member for impinging sand, grit, or other abrasive materials against the inner periphery of the pipe at a high pressure for cleaning thereof, and including a conduit for directing the sand into the interior of the rotatable head in a manner substantially precluding the leakage of the sand from the apparatus prior to discharge thereof from the rotating head.

Abstract: An overcladding structure for the roof of a building, to form a fresh roof overcladding the existing roof without needing to remove the existing roof and disrupting the inside use of the building, comprises fresh sheeting secured in position by anchoring to purlins of the existing roof. Short channel members are placed on the roof above and at intervals along the existing purlin and elongate Z section bearers are placed over these, and anchored by hook bolts to the existing purlins to strengthen the existing purlins. The fresh sheeting is bolted to the bearers and thermal insulating material may fill the space between existing roof and the fresh sheeting.

Abstract: A device for supporting one end of a lap siding while an opposite end is being nailed during a siding installation one a house; the device including, in one design, a hook for hooking over a top edge of a siding already installed, and a hanger adjustably mounted on the hook for a next above siding member to rest thereupon at a correct distance of overlap while the opposite end is manually held in the nailing progress.

Abstract: An improved method of wall construction, and an improved wall construction are provided by the invention. The individual components of the wall are first set in place and then encased in concrete to form a load bearing wall. Multiple channel track units are positioned at the upper and lower edges of the wall, extending therebetween is a plurality of non-load bearing uprights. Attached to the uprights are the various wall components such as doorframes, insulation windowframes, wiring and piping conduits. Forms are then set into place and the concrete is poured, upon hardening of the concrete the load bearing wall is complete, thereby eliminating customary furring strips, inside insulation, sheetrock, and external siding, plastering, stucco, etc.

Abstract: A set of interlocking building blocks capable of being assembled with each other forming wall structures without requiring mortar or any other binder. The set consists of four types of blocks and one lintel rib which are capable of forming wall structures and openings in said structures that are adapted to cooperate in locking relationship to prevent transverse or longitudinal movement of the blocks relative to one another.

Abstract: For use in a suspended ceiling system a pair of beams joinable end to end in aligned relation, each of the beams having a vertical web and lower flange at right angles thereto. The beams have identically formed end portions each terminating in a horizontal tongue integral with the web. Each web has formed therein a window having an inwardly spaced "locking" edge and having a vertical dimension just slightly greater than the height of the tongue. Each of the tongues is notched and bent along its upper and lower edges to form a pair of integral hooks. The tongues are sufficiently straight with respect to the plane of the web so that when a tongue is received in the window of the companion beam it bears with resilient lateral force against the far edge of the window, insuring that the hooks "catch" behind the locking edge to a desired depth.

Abstract: The invention relates to a method of fixing roofing tiles to a roof structure. This method includes the steps of laying a lower tile on a tiling batten, passing a fastener through a preformed hole in the lower tile and engaging the batten, laying an upper tile on the lower tile in overlapping arrangement and finally connecting the upper tile to the fastener by a suitable clip.The invention also provides a roofing tile fixing clip for securing overlapping roofing tiles to a roofing structure. The clip includes a body portion, a foot adapted to engage a fastener secured to the building structure, and a hook to engage the upper tile of the overlapped tiles.

Abstract: A utility line support structure having a pair of legs extending upwardly with respect to the ground in an H frame, the legs being made of structural elements having a web, a pair of side walls extending at right angles from a break line between the web and each side wall, and a pair of inturned flanges extending at right angles from a break line between each flange and its associated side wall, the flanges being parallel to the web and having edges defining a slot therebetween so that the legs have a generally C-shaped cross-section.

Abstract: A foliage trimmer having a housing connected to a source of suction, a fly cutter rotatably mounted therein, and a bar cutter mounted along the lower leading edge of the housing. The fly cutter and the bar cutter are driven simultaneously by drive means mounted on the housing.

Abstract: A mowing machine connectable by its frame to a three-point lift device of a tractor and powered by the power take-off of the tractor via belts and a gear train, to extend laterally relative to one side of the tractor. An outboard portion of the frame forms a housing for a gear train that rotates crop displacing members thereunder about shafts each having a gear supported at the lower end thereof which engages pinions on parallel offset shafts for mowing elements. Supporting members under each mowing element are offset to the rear to support the machine. A screening member extends above the mowing elements and to the rear where it is bent downwardly to be spaced a distance less than the height of the mowing element above the ground. Forward the screening member is crenated as seen from above so cutters pivotly mounted from each mowing element describe a cutting arc of about 60.degree. parallel to the adjacent arcuate portion of the screening member.

Abstract: Splicing assembly, including a splicing device having a pneumatic thread splicer for joining an upper thread to a lower thread and a testing device for monitoring the tensile strength of the splice.