Abstract: An inflatable aquatic rescue board is provided having particular advantage in rescuing persons who have sustained injuries while swimming or diving, and who frequently must be held rigid to prevent further injuries while being removed from the water. Prior to inflation, the rescue board is quite flexible, permitting it to be rolled into a compact bundle for storage. Then, upon activation of a self-contained compressed gas supply, the rescue board quickly becomes stiff and buoyant to form an ideal aquatic stretcher. The board comprises a planar structure having two impervious parallel broad faces constrained to a maximum separation by internal members extending therebetween. Transverse reinforcements provide additional rigidity and two longitudinally extending flat springs facilitate unrolling of the rescue board under water during rescue.

Abstract: Apparatus for withdrawing wire in an axial direction from a coil, with rotary counter-twist means which is capable of adjustment during operation to vary the ratio of its speed to that of the wire, and which includes a set of bending rolls with combined straightening and back-tension functions.

Abstract: The friction surface of a cast iron side wall member for a rotary piston engine is hardened by iontriding in an electrical glow discharge in a gas atmosphere containing nitrogen, after coating the areas not to be hardened, to inhibit glow discharge at those areas.

Abstract: An echo suppressor for full duplex telephone circuits consists of a filter bank of contiguous band filters in the transmission path, with each filter output feeding a separate center clipper. Each clipping level is controlled by echo signal amplitude as attenuated by the trans-hybrid loss that occurs in the corresponding subband. The scheme permits "double-talking" while suppressing the echo component.

Abstract: Reinforced body armor and the like is fabricated by securing a thin ballistic metal outer shell to a plurality of layers of flexible material having qualities resistant to ballistic penetration. The layers of material are sewn together along paths spaced within a selected predetermined range, so as to restrict movement of the fabric layers in lateral and longitudinal directions and to compact the layers in an elastic mass thereby to provide improved resistance to penetration of the material by a ballistic missile and to partially stiffen the material so that shock waves and the force of impact of the missile are distributed over a relatively large area adjacent the point of impact of the missile to reduce back target distortion.

Abstract: A lens suitable for implantation in the eye is provided with rearwardly disposed laterally extending iris clips anchored inwardly of the lens perimeter within openings extending forwardly into the lens from its rear surface.

Abstract: A shower-bath arrangement comprising a slideable member which is displaceable on a vertical support member and which is adjustable upwardly and downwardly thereon, the slideable member supporting a shower arm which is provided with shower nozzles. The slideable member is also coupled to a source of water supply. The shower arm is swingable about a substantially horizontal axis for adjusting the inclination of the shower arm relative to a horizontal plane. The shower nozzles are preferably arranged to emit substantially conical water jets and are directed such that the water jets strike one another angularly within a mixing zone located between the nozzles. Preferably, the nozzles are rotatable to locate the mixing zone either above or below the nozzles.

Abstract: A fluid tight enclosure suitable for use as a swimming pool positioned either above or below ground level, or for relining an existing pool. The enclosure comprises a plurality of waterproof panels forming the side walls and floor, the panels being sealably interconnected by a structure which includes a resilient elastomeric sealing member bridging the adjacent panels and sealably contacting the front faces thereof. A relatively rigid plastic cover member overlies the sealing member, and in one embodiment of the disclosed invention, a relatively rigid plastic base member is positioned to underlie the sealing member, the base member including an upwardly directed flange adapted to operatively engage a conforming portion of the cover member to secure the cover member in it position overlying the sealing member.

Abstract: The pool is of an elongated trough shape and formed of connectible units or modules each of which has cross sectional dimensions providing for its passage through usual size school doors. The water is of a uniform depth over the full length of the pool such that a child may finger tip the bottom anywhere in the pool and is continuously heated, filtered and circulated. The bottom of the pool is marked with numbered training stations with a swimmer in a training station being addressed by the station number. Instructions may be given from within the pool or from a horizontal walkway extended outwardly from the upper edge of the pool.

Abstract: A water closet seat assembly with a closet seat for use in an elevated or a conventional position. The seat assembly includes support walls mounted on opposite sides of the water closet and provided with two vertical and opposed guideways. The closet seat has a central opening for access to the receptacle and guides which project into the guideways and are free to slide and pivot therein. Support protrusions project inwardly from the support walls to support the closet seat in the elevated position. As the closet seat guides are moved to the bottom of the guideways, an extended lip portion of the closet seat which rests on the support protrusion, moves rearwardly to clear the protrusions and permit the closet seat to be lowered to its conventional position adjacent the upper edge of the water closet receptacle. Arm rests may extend from the walls to provide support for the arms of the user.

Abstract: For adjusting the tilt height of one end of a bed, a bed frame, a tiltable frame section attached to the frame, a longitudinally oriented bar secured to the section, a bar receiving means having an opening through which the bar passes supported on the frame, the receiving means opening being orientable from a position at which it misaligns with the bar and blocks sliding of the bar therethrough to a position at which it aligns with the bar and permits the bar to slide through, thereby permitting the frame section to gradually recover from tilted orientation.

Abstract: A portable baby holding device is provided which may take the form of a combination baby carriage, stroller, infant seat, car seat, car bed, bassinet, high chair and the like and comprises baby carrier means and baby shielding or protective means movably connected to said carrier means, for protecting the baby from severe or inclement weather while the baby is being held in said carrier means. The baby shielding means may comprise a plastic, metal, and/or cloth canopy, which is adapted to completely cover the baby. The carrier means includes a collapsible frame and baby holding means supported on the frame.

Abstract: A bathtub which has specific advantages for certain physically handicapped or infirm persons. The bathtub includes a circular well which is recessed below the floor level. A crescent-shaped bench is included which supports the user in a comfortable sitting position and provides a step, also below the floor level, to accommodate the ingress and egress of the user. A pair of remotely disposed showerheads are included which may selectively be turned on or off in unison and/or individually. A hand railing having a gate portion is disposed a distance above the floor and extends circumferentially around the well to provide a safety barrier and to assist the user into and out of the bathtub.

Abstract: A frame for a box spring unit utilizing torsion bar springs comprises a generally rectangular wood frame member and a plurality of parallel transverse metal slats secured to the frame member, the metal slats being adapted to precisely position and firmly secure the base of the torsion bar spring to the metal slat.

Abstract: A rail attachment assembly for attaching an end of a sinuous spring band to a steel rail. A vertical or a horizontal flange of the rail is apertured or cut-out to facilitate passage of an anchor link or band element. The aperture or cut-out is elongated along one axis to permit pivotal movement of the link or band through a substantial arc without interference.

Abstract: A safety bed rail assembly especially adapted for hospital beds including means for pivoting the rail between raised and lowered positions with respect to the bed mattress. Release means for operation by a knee of a nurse or other attendant are included to pivot the rail between said positions. The pivotal movement is limited such that the rail always pivots away from the release means to prevent pinching or trapping of the knee by the pivot mechanism.

Abstract: A hull construction especially suited to inhibit marine growth and a method for forming same is provided. The hull construction includes an outer surface having alternating metallic areas and fiber glass areas defining the entire outer hull surface. The metal forming the metallic areas is of the type which inhibits marine growth.

Abstract: A lock nut blank and a method of making a lock nut having a portion only of its threads, and not more than three complete threads, compressed axially and not radially so as to engage a mating bolt with sufficient resilient force to provide substantial torque in opposition to turning of the nut, said torque being substantially constant over the entire range of travel of the nut along the bolt and maintaining the minimum breakaway torque as a substantial proportion of the initial tightening torque, throughout repeated operations, said force being so limited that galling of the thread, nut and screw is prevented. The nut is made by first producing a blank having a body, which in one embodiment is of conventional form, and a relatively thin walled collar connected integrally at one of its ends to an end of the body adjacent the inner periphery thereof. The blank is initially threaded with the same pitch in both the body and the collar.

Abstract: The present disclosure relates to a novel externally threaded fastener unit and the novel combination resulting from employment of said unit with an internally threaded element, such as a nut or the like, and the method of manufacture thereof. The fastener unit includes a headed screw member having a frusto-conical washer preassembled thereon and held in captive relation by the external thread form. Disposed adjacent the threaded portion of the screw member is an unthreaded neck section of a controlled cross-sectional dimension. This neck section is designed to have a dimension which is less than the minimum minor dimension of an internal thread designed in accordance with industry specified dimensions and tolerances for mating engagement with the external thread on said fastener.

Abstract: An apparatus for applying a sole to an upper in the manufacture of shoes, comprising in combination: a seat for a sole, a shoe last destined to receive an upper completed with insole, a means for lifting and for transporting the sole, said means being capable of controlled reciprocation between said seat and said shoe last, and guide means cooperating with the latter in order to guide the sole to a position centered on the upper.

Abstract: An improved meat tenderizing system is provided in which a pair of oppositely positioned carriage assemblies, each carrying a number of needle manifolds, is operated to align injection needles with a carcass that is conveyed in a longitudinal path intermediate the carriage assemblies. At least some of the needles are pivotable so as to direct the injection needles into the carcass at a desirable angle.A metered amount of tenderizing solution is automatically fed to the needle manifolds when the needles enter the carcass. After the metered amount of solution has been injected, the needles are automatically withdrawn and the carcass is conveyed for further processing.

Abstract: A shoe lasting machine having helically landed rolls for wiping opposite margins of a shoe upper. The rolls extend widthwise of the shoe bottom and are supportively disposed so the roll surfaces facing the shoe bottom generally correspond to the widthwise curvature of the shoe bottoms, the rolls being arcuately movable, permitting a controllable change in the included angle therebetween in order that they may accommodate wide ranges of transverse curvatures of shoe bottoms.

Abstract: A system for coupling a loading ramp to a ship which allows a substantial amount of movement of the ship relative to the pier. The end of the loading ramp secured to the ship includes a lever arm coupled to each side of the ramp. Each lever arm includes a foot structure at one end which rests directly on the deck of the ship. The other end of each lever arm hangs via a cable from overhead support structure on the ship.

Abstract: An automatic apparatus or robot preferably intended for cleaning floors or like surfaces in such premises and within such regions, where one cannot for special reasons utilize conventional apparatuses or machines. The automatic apparatus or robot includes a unit which is spaced from the apparatus proper, drivable along a track spaced from the floor or like surface, and coupled with the apparatus to steer and tow it.

Abstract: The apparatus for cleaning the horizontal sealing surface of the coke oven door includes a cleaning tool that is arranged to move horizontally on a tool support. The tool support is movably connected to the frame member and is arranged to be adjusted vertically to clean the horizontal surface of the coke oven doors having different vertical dimensions. Stop members are provided on the tool support and the frame to control the vertical adjusted position of the cleaning tool. The apparatus also includes cleaning tools for cleaning the vertical edges of the coke oven door. The latter cleaning tools are mounted on a rotary column which, in turn, is supported on the frame member. Pairs of cleaning tools are connected to the rotary column and are arranged to clean the vertical surfaces of coke oven doors having different transverse dimensions. There are also provided other cleaning tools mounted on rotary columns for cleaning the refractory lining of the coke oven door.

Abstract: A mop for dusting use having and an excellent washing resistance employing a special thick cotton folded yarn as mop-head piles, the folded yarn but having a loose twist just within a specific range of twist number calculated from the formulas exhibited in the instant specification and are mercerized under the specific conditions to be contracted over 10 to 30% of the original yarn length. The dimensional and configurational stabilization and fixation of the twisted form of folded yarn are the intended aim of the mercerizing treatment, which realize the retainment of the twisted form, pliability and free mobility of individual pile in mop-head, even though the mop is subjected to severe washing treatment repeatedly.

Abstract: A paint roller or ceiling brush handle which is specially adapted to fit an individual's grip and accordingly has two curved circumferential surfaces forming two of the opposite gripping surfaces, such surfaces being joined by opposite circumferentially arched surfaces, convexly shaped. Brush handle is proportioned to be of a length substantially equal to an average adult hand width and the handle is proportioned to fit anatomically the grip of the holder.

Abstract: A collapsible dust pan is disclosed wherein the user has the ability by a remote control means to keep the dust pan in a lowered position or to raise the dust pan and hold it in an upright position for storage. The dust pan is a hinged pan so that the pan itself can be folded against the upright portion of the handle for easy storage.

Abstract: The present invention relates to a pressurized air-driven suction device for dust, mud, liquids, and similar substances, comprising one or more nozzles for ejecting pressurized air, and including appurtenant venturi tubes situated in an elongated tubular ejector housing, which at its outer end, if desired, may be provided with a silencer. A suction air pipe for supplying suction air is also mounted in said ejector housing, which is itself mounted through the end plate of a container, such as an oil drum having plug holes.

Abstract: A separable stub shaft connection for a rotatable surface treating member, such as a brush, having a tubular hub. The connection includes a stub shaft having a preselected length thereof projecting into one end of the hub. A pair of diametrically opposed but axially spaced bearing areas create a secure engagement between the hub and stub shaft when bolted together. Appropriate clearances are provided to permit the shaft and hub to be angularly tilted through at least a limited extent relative to one another so that the stub shaft and hub can be relatively axially displaced when the hub is to be mounted on or removed from the stub shaft. The other end of the hub is mounted on a further stub shaft connection which permits the other end of the hub to be moved transversely relative to the stub shaft. For this purpose, the other end of the hub has a separable arcuate sector which extends through an angle of approximately 180.degree..

Abstract: In abstract, a preferred embodiment of this invention is a device for cleaning gutters without having to use stepladders or other elevating means. This invention is in the form of a novel nozzle used in conjunction with wet/dry vacuum systems.

Abstract: An improved stop attachment removably connectable to a hinge assembly for adjustably limiting the degree of angular movement of a hinge assembly, the stop attachment including a housing assembly and a stop sleeve. The stop sleeve is movable with respect to the housing assembly for selectively positioning a first and a second stop surface formed on the stop sleeve with respect to a first and a second stop surface, respectively, formed on the housing assembly. In each selectively adjusted position of the stop sleeve and the housing assembly, at least one of the first stop surfaces of the stop sleeve and the housing assembly engages a first hinge leaf of the hinge assembly and at least one of the second stop surfaces of the stop sleeve and the housing assembly engages a second hinge leaf of the hinge assembly thereby selectively and adjustingly limiting the degree of angular movement of the first and the second hinge leaves.

Abstract: An auxiliary lock is disclosed which is intended to be used as a night lock in combination with the hinge of a conventional door. The device includes an elongated cross bar and a plurality of adjustable stop members which project from and are threadedly received in said cross bar and are adapted to engage the surface of the door and the door jamb or wall. The cross bar also carries a spring-loaded connecting means which is adapted to be engaged with the hinge pin of a conventional door hinge to thereby hold the cross bar in place on the hinge and the stop members in engagement with the door and door jamb. The bar is pivotally connected to the hinge pin by the connecting means so that it may be rotated 90.degree. to permit normal operation of the door, and in this regard secondary stop members are provided to function as normal door stop members when the device is in its inoperative or unlocked position.

Abstract: An apparatus for encasing a product including a product encasing machine, linking apparatus, and a looping apparatus. The product encasing machine includes a rotatable stuffing tube having a fine head mounted on its forward end. The fin head imparts rotational drive and longitudinal drag to the casing as the casing passes thereover as the casing is being filled. The rearward end of the stuffing tube is mounted in a socket type apparatus to permit the stuffing tube to be pivotally moved upwardly and laterally to facilitate the installation of the folded casing thereon. A member is also provided for fluidly lubricating the interior surfaces of the stuffing tube to prevent product smear. The linking apparatus includes a pair of loop members carrying pinching members thereon. The pinching members are constructed of a moldable material and are detachably mounted on the loop members. The pinching members include pinching surfaces adapted to engage and collapse the rotating casing issuing from the encasing machine.

Abstract: A specially designed roller for shrimp peeling machines which includes a gapped portion along its length, for example at its upper end, to effectively shorten the effective peeling section of the machine without substantial modification of the basic machine itself by allowing the shrimp to fall through the gapped portion rather than traversing the full length of the roller. Heretofore, separate, different machines were necessary to achieve the highly desired advantages of the present invention. The special, gapped rollers are substituted for the standard peeling rollers which provide peeling action along their full length, when an effectively shorter peeling section is desired. Several different gapped rollers are disclosed, some reversible end-for-end and others forming a series of subsequently related rollers which have a varying location of the gap portion along the roller length.

Abstract: A safety device for stopping the bale plucking operation of a bale plucker provided with a detecting device for detecting the existence of metallic substances contained in a fiber bale. The detecting device is disposed at a position along a path of reciprocating movement of the fiber bale back and forth over the working position of a plucking roller of the bale plucker and the driving mechanism of the bale plucker is capable of being instantly stopped by a signal issued from the detecting device upon detection of a metallic substance in the fiber bale so that carrying of the fiber bale to the plucking roller can be prevented.

Abstract: A method of combing textile and the like fibers is provided in which the free end or fringe of a sliver of fibers is clamped, a section of the sliver adjacent the clamped fringe is combed leaving the fringe itself uncombed. Thereafter the clamp is released and the fringe of the sliver is combed. After fringe-combing, the fibers which have been combed by these two operations are drawn off from the sliver through a comb element to comb the tail ends thereof. Apparatus adapted to carry out the method of combing is provided and includes combing means comprising a clamp for clamping the free end or fringe of a sliver of fibers and a comb element relatively movable with respect to the clamp to effect combing of the sliver adjacent the clamp, means to comb the fringe of the sliver when released from the clamp and means to draw off the thus partly combed fibers through a comb element to comb the tail ends thereof.

Abstract: A mount for use with a cable tie having a locking head and a strap extending therefrom for holding at least one elongate object having opposed generally flat first and second sides, such as a flat cable. The mount includes a first member which either has a substantially flat surface for engaging the first side of the object or has means for providing such a surface and further has guide means for guiding the strap about a portion of the first member so that the strap extends beyond the substantially flat surface. The mount also includes a second member which has holding means for captively holding the locking head. The second member either has a substantially flat surface for engagement with the second side of the object or has means for providing such a surface and further has guide means for guiding the cable tie about a portion of the second member so that the cable tie extends beyond the last-mentioned substantially flat surface.

Abstract: A backing member for a pronged garment fastener comprises a sheet-metal disc of spherically curved shallow dished configuration having a convex exterior surface and a concave interior surface. Integral tongue elements extend radially inwards from the periphery and lie in closely adjacent substantially abutting confronting relation with said concave interior surface within the concavity recess. The tongue elements have apertures which register with the prongs of the fastener and, adjacent said apertures, longitudinal groove or channel formations which extend radially inwards and which co-operate with the opposed concave interior surface to form pockets adapted to receive and accommodate the individual bent-over end portions of the prongs which are passed through said apertures and clenched against the concave interior surface.

Abstract: A method of holding flexible sheet or strip material utilizes a holding device comprising a loop holder recessed internally to provide a polygonal passage for the reception of a loop-expanding element. A second, relatively shallow passage in the loop holder extends from and along the length of the polygonal passage to the outside of the loop holder for accommodating emergent portions of a received loop portion of flexible sheet or strip material to be held. The loop-expanding element is polygonal in configuration and of size adapted to be non-rotatively accommodated by the polygonal passage and is adapted for positioning within the loop portion of the flexible sheet or strip material to be held that is positioned within the polygonal passage.

Abstract: A jet apparatus has a body member having a yarn passage with a semi-circular cross section cut in one face, a single air orifice of diameter less than the yarn passage entering the yarn passage from the body side at an angle of 80.degree. to 90.degree. to the yarn passage, a cover plate secured by two screws and pivotable about one for stringup, and guides holding two yarns separated as they contact the yarn passage entrance. The jet apparatus is strung up passing two ends of false-twist-textured yarn separately into the yarn passage of the jet with the cover plate swung open while holding both running ends in a waste jet at a relatively high tension to keep the yarns separated in the yarn passage and finally closing and securing the jet cover. Turning on pressurized air to the jet and transferring both yarns simultaneously from the waste jet to a windup where they are wound at lower tension allow the two ends to combine together in the jet.

Abstract: A weaving frame supporting device comprises a support member of adjustable variable length supported vertically by a base member. A bifurcated head member is adjustably affixed to the free end of the support member and has a pair of spaced parallel arms. A clamp member is rotatably adjustably affixed to and between the arms of the head member and has clamps thereon for releasably clamping a weaving frame thereto in a manner whereby the clamping member is adjustable angularly to position the clamps at selected angles relative to horizontal.

Abstract: An improved technique for forming an electron emitting cathode of iridium d similar noble metals. A mixture of powders including a matrix material of one of the noble metals and a pore forming material of silver is shaped into a cathode configuration and sintered at a temperature sufficient to evaporate the silver, thereby producing a porous matrix. The matrix is impregnated with an active material and dried to produce a cathode having increased electron emission characteristics allowing operation at lower temperatures for longer time periods.

Abstract: An apparatus for transferring and finishing items cast several at a time in a chill mold which comprises a conveyor for cooling the items connected at its upper end to a means of transfer of the items from the output of a casting machine and below to a means of transfer which feeds a turntable on which the items are selectively mounted for their machining while passing before a turning unit and a broaching unit. In a preferred embodiment the present invention is utilized for transferring and finishing pistons.

Abstract: A method of making a covered article such as an automobile seat cushion is disclosed. The method includes the steps of forming covering members from a covering material which is impervious to a foam material formed by reacting a foamable composition. The covering members are sewed together along sew lines to form a cover. A peripheral edge of the cover is joined to an interior peripheral edge of a locating member. A plurality of small openings are formed along the sew lines of the cover in the sewing operation. These openings are sealed so that the foam material produced upon the foaming of the foamable composition cannot flow therethrough. The cover and attached locating member are positioned in a foaming mold. The locating member aligns the cover properly with respect to the foaming mold so that a vacuum can be drawn on a die surface of the mold to draw a surface of the cover into contact with the die surface.

Abstract: A pre-sharpened cutting tip for brazing onto the working edge of a saw plate. The upper end of the tip contains the pre-sharpened cutting edge. The lower end of the tip has a width equal to that of the cutting edge. The midsection of the tip is of reduced width for decreasing the friction between the tip and the workpiece during sawing. Since both ends of the tip are of equal width, the tip can be accurately located with reference to the parallel sides of the saw plate for brazing the tips onto the saw plate.

Abstract: This machine tool is utilized for cutting super alloys. The tool is associated with a source of cryogenic coolant which is routed internally through the tool. The coolant is discharged from the tool at a precise angle such that the stream of the coolant at the interface between the tool cutting edge and the workpiece is such that the chip cutting from the piece does not interfere with the coolant stream. The coolant passage is insulated to prevent boiling of the coolant until it reaches the cutting edge to obtain maximum heat dissipation.

Abstract: A roller to be used in apparatus for wet treatment of photographic material comprises a hollow metallic core and two inserts with coupling shafts provided therein. A coat of chemically resistant thermoplastic material is applied around and sealingly surrounds the core to protect it from the corrosive action of media used in the wet treatment process. The outer surface of the thus coated roller is thereupon machined to a high-quality finish.

Abstract: A fastener installation head having a fastener receiving passage, a transverse plunger passage having a reciprocating plunger therein, a feed means feeding fasteners from the fastener passage beneath the plunger and a restrictor means preventing a fastener located ready for installation from withdrawing into the fastener passage. The restrictor means includes an arm pivotally connected to the fastener installation head having a finger resiliently biased into the fastener receiving passage, normally blocking withdrawal of a fastener from the ready location. The stop finger includes a camming face facing fasteners entering the plunger passage, whereby a fastener may enter the plunger passage upon actuation of the feed means but is prevented from withdrawing into the fastener passage.

Abstract: A method for repairing eroded bottoms of ingot molds by forming a casting space in the bottom of the mold at the point of erosion, the casting space having an hour-glass type shape, placing the ingot mold on a molding platform so as to close off the bottom of the casting space with a refractory material, placing a protective layer of a compactable refractory material about the interior of the mold and introducing to the casting space an alumino-thermic material and then igniting said alumino-thermic material such that the weld metal from the reaction thereof completely fills the casting space. Methods for repairing the bottoms of closed bottom as well as plug bottom molds are disclosed.