Abstract: A knee joint prosthesis comprises a tibial component adapted to be received on the upper end of the tibia, a tibial insert having a generally planar table portion and a spheroidal center depression carried by the tibial component and a femoral component adapted to be received on the lower end of the femur, the femoral component includes a portion having a depending generally spheroidal surface which cooperates with the spheroidal depression in the tibial insert.

Abstract: An artificial hand for a person whose hand stump includes the metacarpus or a portion thereof characterized in the provision of stump and forearm gripping portions which are pivotally connected together on opposite sides of the wrist for up and down pivotal movement of the stump about the corresponding axis of the wrist, said forearm gripping portion including a detachable thumb-like forward projection from either or each side thereof (for use on the left or right forearm), and said stump gripping portion having forwardly extending curved fingers which, upon pivotal movement of the stump-gripping portion enables receiving and gripping of various objects between the fingers and the forward projection or projections. The artificial hand herein is further characterized in that the aforesaid pivots also permit lateral pivoting of the stump gripping portion and fingers thereof.

Abstract: Shaped springs are fitted to a flange of a modular package such as a sink-disposer unit inserted through an aperture in a surface. One camming surface moves each spring out of the way during insertion of the package into the aperture and a second camming surface sprung outwardly against the wall of the aperture to obstruct removal of the package as insertion is completed. The spring may then be selectively tensioned by a threaded nut.

Abstract: There are means in the sanitary facility defining a receiving bowl for liquid and/or solid excrement, and the bowl has a discharge valve in the bottom portion thereof. Also, there are means for controlling flow through the valve, including a pivotally mounted water receptacle which is operative to open the valve to flow when the receptacle is relatively inclined about its pivotal axis in a first position, and to close the valve to flow when the receptacle is relatively inclined about its pivotal axis in a second position relatively angularly spaced from the first position. Additionally, there are means for supplying water to the bowl to form a pool of carrier liquid therein when the valve is closed; a control valve which is adapted to be interconnected to a source of pressurized water; and control means which are responsive to the level of water in the bowl to close and open the control valve to flow as the water level rises and falls, respectively.

Abstract: A horizontal bed has a vertical headboard attached to its front. The headboard forms the back of a deck that is attached to the bed. The deck has a horizontal writing platform that can be slid back and forward with respect to the headboard and can be locked in position by a locking device.

Abstract: A sofa bed and sofa bed mechanism are disclosed wherein a three-piece support is employed for the sleeping cushioning element which retracts to a conventional sofa configuration and expands easily to provide a bed of conventional sleeping height. The mechanism is simple, rugged and tolerant of manufacturing variations.

Abstract: A bed frame especially suitable for a hospital bed construction. The bed rails are provided by one or more extruded metal channel members connected into a familiar rectangular frame. Extruded metal corner brackets are riveted to the corners of the frame. The corner brackets have integral extensions and formations which serve a variety of functions such as for supporting safety side rails and for the bed headboard and footboard members, standards for supporting patient treating equipment, among others. The bracket serves a dual function of strengthening and/or retaining the channel members in the rectangular frame formation and providing means for attaching a variety of different devices to the bed frame.

Abstract: A bumper of a generally U-shaped tubular member whose free ends are pivotally attached to brackets which in turn are secured to the cross rod extending between the front legs of a bed or the like. A balancing spring contact engaging the bracket and the U-shaped bumper member maintains the bumper in lowered position extending from the head of the bed or in raised position wherein it does not substantially increase the length of the bed.

Abstract: A combination screwdriver and reamer has a blade with edge means for deburring the internal diameter of cut conduit or tubing. An effective tool is provided to serve as a general purpose screwdriver having the added reaming or deburring capacity. The tool is constructed so that the reaming or deburring structure does not interfere with the screwdriver function.

Abstract: This invention consists of a kit for facilitating the portage of canoes. The kit contains two identical spring loaded telescopic rods which attach spaced and parallel to each other to and between the central bar of the canoe and and any other strut on either side of said central bar, or to the front edge of the rear or front seat of the canoe. The other part of the kit consists of a cushion of soft resilient material which attaches to the center bar of the canoe and which is contoured to fit comfortably the back of the neck and center between the shoulders of the person carrying the canoe.

Abstract: Diver flotation apparatus including buoyancy compensation apparatus in the back pack over the diver's back, and including an inflatable portion connected to the diver's air supply through a diver operated valve for filling the inflatable portion to achieve buoyancy compensation. The back pack incorporates internal weights, the amount and character of which can be changed to adjust the center of gravity of the diver and equipment. This allows a diver to easily adjust and maintain an optimum buoyancy and attitude relative to the water surface.

Abstract: An electrically driven hand-held apparatus, for applying a treating material, such as wax, to a surface and for subsequently buffing up the surface or working the treating material thereinto, has a central applicator element surrounded by an annular buffing or brushing element, these elements being relatively displaceable axially so as to present one or the other in a projecting working position. The elements are rotatable by a bi-directional motor, and are coupled by an arrangement which ensures that reversing the direction of rotation automatically causes the relative axial displacement of the two elements. The applicator element may have a reservoir for the treating product, and a spring-loaded feed piston therein. The reservoir may have a valved inlet, and a stem may be inserted for filling the reservoir from an aerosol can. The applicator element and the buffing or brushing element may be removable and replaceable as an assembly.

Abstract: A golf ball washing machine, comprising a circular golf ball wash chamber at the center of which are rotatably provided a lower brush disc and a central brush cylinder coaxially therewith, the inner peripheral surface of said wash chamber being detachably provided with a flexible belt-like brush plate.

Abstract: Car washing apparatus including a primary arm pivotally supported at one end and extending rearwardly along the path of the car, a secondary arm pivotally supported on the free end of the primary arm and extending across the path of the car, and a rotary brush on the free end of the secondary arm. A secondary cylinder is connected between the primary and secondary arms, and the rod and blind ends of the cylinder are connected through flow controls to the control inlets of a 4-way valve. The 4-way valve controls a primary arm cylinder which retracts and extends the primary arm as required. When a car strikes the brush, the pressure increase at one end of the secondary arm cylinder pilots the 4-way valve, operating the primary arm piston and cylinder.

Abstract: This invention provides a pig adapted for cleaning material from the inner wall of a pipeline and for assisting in the removal of this material from the pipeline. The pig comprises a cylindrical, open cell foam core. An impervious jacket covers the outer wall of the core. An opening in at least one end wall allows the pressurized fluid inside the pipeline to permeate the core. An abrasive means completely covers the outer cylindrical surface of the jacket. The abrasive means preferably is a layer of hardened steel bristles attached to a web backing. The tips of the steel bristles are bent in a longitudinal plane in the direction of travel of the pig.

Abstract: A housing structure confines a ball-shaped valve member with a flow passage therethrough. One end of the flow passage serves as a cavity to receive a pipeline scraper in the form of a pig ball and a grid retains the pig ball while permitting fluid flow through the passage. The valve ball cavity may register with the chamber of a normally closed magazine to receive a pig ball therefrom or to release a pig ball thereto. The valve ball cavity may also register with one of the two ports of the housing structure to launch or retrieve a pig ball therethrough. The valve ball is completely enclosed by the housing structure with a seal at the entrance to the magazine. The magazine has a bleeder valve to the atmosphere and also has a by-pass valve to equalize the fluid pressure in the magazine with the fluid pressure in the pipeline. The valve ball has compensating freedom to move towards and away from the seal. Manually operable gearing rotates the valve ball 90.degree. between its two alternate positions.

Abstract: A sponge-like body having an elongated cord extending therethrough, said cord having handle elements at its opposite ends. Stop elements on the cord at opposite ends of the body restrict movement of the body longitudinally of the cord.

Abstract: A windshield cleaning device for motor vehicles for use in conjunction with a reciprocable wiper blade, having an essentially trough-shaped receptacle with an inner chamber that is open on at least one side for the accommodation of a water-soluble paste or solid cleansing agent and/or detergent concentrate, mounting means projecting from the receptacle at the side facing away from the at least one open side of the inner chamber for the releasable attachment of the device to one side of the wiper blade, and an applicator disposed adjacent a straight edge defining the inner chamber of the receptacle, which receives from the inner chamber the cleansing agent and/or detergent dissolved by water and applies it to the windshield wiped by the wiper blade.

Abstract: A machine in which eviserated dressed poultry carcasses from which leg shanks have been removed from the legs are mounted upon a conveyor by clamping member thereon which is driven to move each carcass through all separating stations of the machine to sequentially and automatically remove (1) the wing tips from the intermediate wing sections, (2) the intermediate sections from the wing stubs, (3) the wing stubs from the vertebrae (back), (4) the whole breast from the vertebrae, and (5) the thighs and legs from the vertebrae in a manner to also remove the "oyster" from the vertebrae, whereby the tail and vertebrae are removed from the machine to complete the dismemberment of the carcass into all the normal commercially available pieces.

Abstract: Apparatus for sizing and deheading shrimp is illustrated wherein an open, elongated trough has a pair of sides which diverge laterally outwardly from adjacent one end of the trough toward the other with a conveyor for moving shrimp along the trough permitting progressively larger shrimp to fall through the open bottom of the trough, and a number of conveyors are provided for carrying the shrimp thus sized, into contact with a stationary blade in such a manner that the head is pushed over the blade and body passed under the blade and the heads and bodies collected separately.

Abstract: An apparatus for processing yarn in order to texturize and cut the yarn includes means for using a fluid to direct yarn into a tube which has a rotating spindle therein around which the yarn forms a wad. At least part of the fluid is exhausted from the tube and the wad is then cut and removed from the spindle.

Abstract: A removable fixing system for the needle bars on chain gills, for supporting and driving the bars, in which each bar is pivotally connected, by its two ends on two chains, and has, at one of its ends, a bent extension the free end of which is engaged in a fixed cam groove the configuration of which determines the orientation of the bar at every point on its path. Each bar is mounted for pivoting, by its two ends, respectively adjacent the inner lateral face of one of the two chains and adjacent the external lateral face of the other of the chains, the pivotal connections between each of the two members constituted by each bar and the corresponding chain each being provided by a respective pivot mounted in overhung manner on one of these two members, in a direction transverse to the direction of the chain, and engaged in a corresponding bore of the other member, while locking means ensure axial positioning of the bar on its pivots.

Abstract: An absorbent article includes an air-laid fibrous web having a medial portion of a greater basis weight than flanking end and side portions. The fibers forming one surface of the web are adhesively bonded together to provide an abrasion resistant, nonpilling, facing layer, and also to aid in maintaining the structural integrity of the web. The fibers forming the other surface of the web are either adhesively bonded together, or a separate backing sheet, preferably in the form of a water-proof plastic sheet, is adhered directly to the other surface of the web to form a stabilized backing layer. The above contructions are adapted for use as disposable diapers.Apparatus of this invention includes a vacuum box having an open end underlying a discrete section of a foraminous forming surface so that regions of the forming surface extend beyond the open end of the vacuum box.

Abstract: This invention relates to an apparatus and method for improving the homogeneity of textile fibers which are blended together in a textile drawing machine. Vertical posts are critically aligned with corresponding angled rods which are spaced between a pair of drafting rolls thus substantially forming a guide mechanism which allows for alternating silver of cotton and synthetic fibers to be placed one on the top of the other and drafted together thereby achieving a more uniform and homogeneous blend.

Abstract: An overload preventing device in crushers of the type having a crushing chamber with a conical crushing surface and a crusher head with a conical crushing surface being eccentrically rotatable about a shaft of the crusher, is of a simple and reliable construction and continuously varies the nip formed between the crushing surfaces as a protection against the crusher being overloaded.

Abstract: A method of traversing a strand between two spaced rows of strand-restraining elements moving together in the same direction to form a web is carried out by a strand-engaging member that orbits each row to alternately traverse the strand toward one and then the other row while forming a loop in the strand during each traverse and positioning the loop around at least one strand-restraining element. Rotary means traveling in the same instantaneous direction as the loop release it from the strand-engaging member.

Abstract: Textile strands are crimped by feeding them with nip rolls into and forwarding them by fluid jets within a laterally confining region terminating in a laterally surrounding fine screen.

Abstract: This invention relates to a method of making a storage battery plate grid comprising the steps of casting a series of grids between the continuous cylindrical patterned end surface of a rotating drum and a smooth surfaced co-operating shoe, cropping said series of grids, said rotating drum being patterned to form said grids with one smooth side, with a perimeter frame, with a lattice network within said frame and with said perimeter frame of a greater thickness than said lattice network; flattening said grids supporting the grids and displacing the lattice network portion of said grid to dispose the principal plane of the lattice network portion thereof between the spaced apart planes of the opposed faces of said perimeter frame.

Abstract: Improvement in indexable insert type cutting toolholder having a steel shank and a pocket in the shank for carrying an indexable insert therein, the insert having a central aperture therein by which it is held in place in the toolholder, the improvement comprising a cartridge fitted in the pocket in the shank, an arrangement for fastening the cartridge securely in place in the shank pocket, the cartridge formed of a high speed steel harder than that of the shank but less that that of the insert, the cartridge retaining its hardness even when heated to cherry red heat, the cartridge having a pocket therein for holding the insert, and an arrangement for fastening the insert securely in place in the cartridge pocket.

Abstract: A method of manufacturing arcuate sealing strips for the pistons of rotary piston machines. The running surface on one face of the strip carries a wear-resistant hard layer.

Abstract: A compressor construction is shown, in combination with a jet engine, having a drum rotor with axially broached attachment slots therein. Blade sticks, each having an axial root shaped to fit the attachment slots and a platform which extends the length of the drum are positioned on said drum. Each blade stick has a plurality of blades located thereon, one for each stage of the compressor. A one-piece stator case with fixed cantilevered vanes is positioned over said drum rotor and blade sticks to form the completed compressor. A drum rotor has an integral shaft which is connected to a turbine. A method of assembling the compressor includes an assembly fixture on which the drum rotor can be positioned with the stator case and blade sticks being aligned so that they can be slid into place on the drum rotor.

Abstract: A method and apparatus for axially aligning the ends of pipes such as pile casings and the like and for supporting these ends in axially aligned relation while they are welded or otherwise secured together. The apparatus includes an alignment jig which can be releasably clamped around one end of a first pipe and includes a plurality of outwardly flared guides which are supported to extend beyond the end of the first pipe. The outwardly flared ends are intended to receive an end of a second pipe as that pipe is moved axially toward the first pipe and to guide that end into axial alignment with the end of the first pipe. The alignment jig is to be clamped to the end of the first pipe in such a manner as to permit free access to the seam formed between the two pipes to permit them to be welded together.

Abstract: A device for positioning the storage plates and insulating plates of lead-acid storage batteries for the assembly of battery cells in such a way that the longitudinally larger insulating plates form a uniform lateral overhang on both sides, the device including two oppositely spaced parallel positioning members with inwardly protruding positioning knives cutting notches in the edges of the insulating plates. The positioning members, or only the positioning knives alone, are retractable horizontally.

Abstract: Apparatus for stripping from a dynamoelectric machine stator a plurality of windings thereof with one of a pair of opposite generally annular groupings of end turns severed therefrom. The apparatus has means movable between a mounting position and a displaced position for generally loosely seating the stator and supporting it in the mounting and displaced positions and also means for gripping engagement with the other of the end turns when the stator is in the mounting position to generally maintain the windings against displacement from the mounting position. The seating and supporting means is movable from the mounting position in response to a force applied thereto to conjointly move the stator relative to the windings to the displaced position thereby to effect the stripping of the windings from the stator when the gripping means is engaged with the other end turns.A method for stripping windings from a stator for dynamoelectric machine is also disclosed.

Abstract: A grip for the handle of a hand-held implement that, in as-produced form, is comprised of a thin walled tubular member open at one end and a boot integral with the tubular member that closes its other end. The grip's average internal girth along its longitudinal axis, as produced, is substantially less than the average external girth of the implement's handle portion to be covered by the grip along that handle portion's longitudinal axis. The grip, which may have a novel exterior gripping surface, is produced by dipping a male mandrel into an elastomeric latex and, thereafter, curing the latex skin formed on the mandrel prior to stripping of the grip from the mandrel. The grip is installed on an implement's handle by creating a pressure differential between the interior and exterior of the grip, thereby causing the grip to stretch radially outward from its longitudinal axis.

Abstract: The present invention provides an air conditioning system for a mobile home and a method of adapting a mobile home for removably receiving an air conditioning unit. The system includes securing a mounting means to the support structure of the mobile home and an air conditioning unit that is adapted to be removably secured to the mounting means. When installed on the mounting means, the air conditioning unit is aligned to deliver conditioned air into the interior of the mobile home through its built-in air distribution system.

Abstract: A method of making a dynamically balanced integral clutch housing and bearing assembly from a flat sheet metal disc by a roller spinning tool. A bearing and the metal disc is mounted on rotating die means between headstock and tailstock die form assemblies of a spinning machine. The spinning tool presses the disc against an end of the bearing to provide a bottom web wall of a cup-shaped bearing housing. The spinning tool then moves in a series of passes along the bearing outer race and along the headstock die form thereby rolling, forming and ironing rotating outer metal portions of the disc against the bearing and die, and forming an annular circumferential flange wall of the bearing housing which terminates in an annular shoulder. The bearing is telescopically mounted and retained within the bearing housing by the side and web walls and retaining shoulder.

Abstract: A high-frequency, high-power FET constructed upon a planar substrate with a repeated pattern of gate, source, and drain connections wherein any two are connected with metallization layers adjacent to and separated from the semiconductor substrate. The third element is interconnected with an overlay metallization layer separated from the lower two metallization layers by an insulating dielectric. The overlay layer is preferably grounded for minimum feedback capacitance.

Abstract: A low pressure transducer and methods of fabricating the same employ piezoresistive bridges deposited on or diffused within a wafer of n-type silicon, the wafer is secured to a glass sheet and is then bonded to a silicon diaphragm of a relatively large size and fabricated from a distinct piece of silicon of non-critical electrical characteristics. Methods for producing a plurality of such devices by using compatible processing steps are also provided.

Abstract: An electric heater plate is disclosed comprising a sheet of tempered glass with a metallized aluminum circuit extending over the face thereof for carrying an electrical heating current. At the terminals of the metallized aluminum circuit there is provided a terminal area of silver between the glass and the metallized aluminum coating, which silver terminals are each exposed through a small opening in the metallized aluminum coating such that lead wires may be soldered to the silver through said openings.

Abstract: A method of making electrical resistors, in particular N.T.C. resistors for high temperature applications. The body of resistance material is provided with electrodes; and the ends of the leads are clamped against the electrodes in a case consisting of ceramic material which shrinks during sintering.

Abstract: A matrix connector comprises an elastomer body presenting a pair of opposite contact surfaces at each of which is disposed a multiplicity of spaced contacts, the contacts of the opposite faces being interconnected by conductors extending through the body, the contacts are defined by folds of the conductors extending through the elastomeric mass, convex portions of the folds being exposed at the opposite faces. Suitably such a connector is made forming the conductive strips on opposite faces of a flexible printed circuit, and interconnected at overlapping portions through holes in the flexible lamina. The lamina is folded in concertina form with adjacent limbs spaced by strips of partially cured elastomer. The assembly is then compressed and cured.

Abstract: A safety razor comprises a blade seat member having a transversely elongated guard surface, and a first plurality of upwardly extending support posts. A first razor blade is situated on the blade seat member with a cutting edge spaced upwardly and rearwardly of the guard surface. A plurality of perforations are formed in the first blade and the first plurality of support posts extend upwardly through the perforations. A second razor blade is positioned above the first blade in abutting engagement with the top surfaces of the first plurality of support posts. The second blade includes a cutting edge spaced upwardly and rearwardly of the cutting edge of the first blade, and a plurality of perforations formed therethrough. A cap member is positioned above the second blade, and includes a second plurality of support posts extending downwardly through the perforations in the second blade and in abutting engagement with the top surface of the first blade.

Abstract: Guide frame means for portable powered saws and including a retainer means comprising a generally "U" shaped frame member having a pair of opposed lateral legs and a first cross-member extending between said opposed legs. An edge guide is coupled between said legs in opposed relationship to the cross-member, with the edge guide having a inwardly facing edge with an inwardly extending flange overlying the inwardly facing edge. Saw cradle means are mounted for adjustable positioning along the laterally extending legs, with the saw cradle means having an opening formed therein to accommodate a saw blade. Castor support means are mounted on the cross-member and are arranged to support the guide frame means at an elevation substantially along a plane through the work supporting surface of the inwardly extending flange.

Abstract: In order, when taking impressions of the upper jaw and lower jaw for dental purposes, to be able to introduce the upper-jaw tray and lower-jaw tray individually into and to remove them individually from the mouth of the patient, one of the trays is formed on the bite surface with depressions against which openings in the second tray come to rest, so that the impression compound is able to penetrate through the openings into the depressions.

Abstract: This invention is directed to a device for implanting an artificial endosseous element of ceramics in the fields of dentistry, oral surgery and orthopedics, comprising an implant screw pin and more than one nut element in combination with said screw pin primarily for securely holding said screw pin in a bone structure after implantation thereof. This invention is also directed to an implant method for use of such device.

Abstract: Sighting system for hand held grenade launchers including a rear leaf sight aving two sets of range indicia markings. A first front sight is spaced from the leaf sight for short to intermediate sighting alignment with one set of rear sight markings and a second front sight is offset from the first sight and spaced from the leaf sight for intermediate to long range sighting alignment with the other set.

Abstract: A sighting device is mounted within the driver's compartment of a vehicle to assist in the accurate driving of the vehicle. A sight member provided with an opening is carried on one end of a telescopically extensible arm. The extensible arm and a swivel connection permit the sight member to be adjusted to a position in which it may be sighted through toward the dividing line of the road to give the vehicle driver an indication of the position of the vehicle relative to the center of the lane in which it is driven. A tinted glass for reducing glare and shimmer is removably mounted to overlie the opening by a clamp device.

Abstract: A range finder is disclosed comprising a tube having an eye opening, an object opening and a sight divided into sections, each section having a sight line or a plurality of sight lines with designated ranges next to each sight line. This arrangement of sight lines allows for the placement of a plurality of easily readable ranges on a relatively small sight. The clustering of sight lines one on top of the other the full height of the sight makes it difficult to use a range finder without some eye strain. The arrangement of sight lines disclosed in the present invention obviates this problem but still allows for the placement of a sufficient number of sight lines so that the range finder is effective over a wide range of distances.

Abstract: Methods and apparatus for vertical alignment of a borehole rig directly over a drilling site involve use of a camera placed in parallel orientation to the drilling mast or drill string and sighted in on the drill target, then allowed to swing free to the true-plumb position, thereafter bringing the mast back into parallel orientation with the now-plumb camera.