Abstract: An improved metallic bone prosthesis having a porous coating for bone ingrowth or interlocking with bone cement is disclosed. The porous coating comprises two layers of generally ball-shaped metallic particles bonded together at their points of contact, e.g. by sintering, and defining between them a plurality of connected interstitial pores having an average pore size of from about 350 microns to about 500 microns. A high resistance to failure at the coating-substrate and bone-coating (or cement-coating) interfaces is achieved with the use of the improved prosthesis. Also disclosed are a novel method for affixing the porous coating to a metal substrate, and a knee joint prosthesis having bearing portions designed so that the function of said prosthesis closely approximates that of the natural knee.

Abstract: An absorbable internal bone fixation device is disclosed. The device is made from a high molecular weight polymer of L(-)lactide having an inherent viscosity above 4.5. The polymer contains less than 2% unreacted monomer and is polymerized under conditions of selected monomer to catalyst ratios and temperature.

Abstract: A total shoulder replacement arthroplasty system which encompasses replacement of the articular surface of the humerus and adjacent glenoid articular surface with a humeral component having a convex surface and a shallow trapezoidal fixation keel to avoid violation of the medullary cavity by the prosthesis and with a concave overmounted glenoid component having a similar keel. The inferior aspect of the acromion is resurfaced with an acromial component for replacement of the acromial clavicular joint, providing mechanical advantage of a fulcrum for abduction and forward flexion of the humerus, and preventing superior migration of the humerus.

Abstract: A locator and support for precisely locating and supporting plumbing pipes relative to structure of a building. The support includes a strap fastenable to the building structure and having a plurality of precisely located openings for receiving the pipes, the pipes being secured within the openings by an adhesive or by soldering, or by the clamping action of inserts carried by the strap and receiving the pipes. Such inserts are slotted to laterally receive the pipes, if desired, and are each characterized by a conical or tapered inner surface which spreads the skirts upon insertion of the pipes so that the radially enlarged skirts prevent separation of the inserts from both the strap and the pipes.

Abstract: A toilet system comprising a bowl, a treating chamber, a trap connecting the bowl to the treating chamber, said trap containing a bypass to a waste pipe, a conductor connecting the treating chamber to the waste pipe, a hydraulic attrition member in the treating chamber for particulizing effluent delivered into the treating chamber, a worm pump in the treating chamber for evacuating effluent from the bowl into the treating chamber and discharging the treated effluent into the waste pipe, a valve connected to the bowl for supplying flush water thereto and control means operable to initiate operation of the pump followed by operation of the valve and stop the pump prior to closing of the valve and wherein, in the event the pump is disabled, discharge from the bowl can be effected through the bypass by delivery of fluid into the bowl.

Abstract: A compact and portable drain having particular application to recreational vehicles such that sewage contained within a holding tank thereof can be relatively easily and efficiently emptied and disposed of at a sewage dump. The drain is connected between a drain hose and a receptacle at the exterior of the recreational vehicle. The flow of sewage through the drain is controlled by a manually operated, reciprocating valve plate which is positioned to either block or open a flow path through the drain. Thus, the valve plate can be opened so that sewage may be drained from the holding tank to a sewage dump by way of the drain and drain hose. A water inlet is also connected to the drain, so as to permit the holding tank to be flushed and cleaned via the drain once the sewage is removed from the holding tank and the valve plate is closed.

Abstract: An add-on bidet includes a moulded plastic seat (12) which has a channel-shaped cross-section. A pivoting spray-arm (108) is stowed between the toilet-bowl rim and the inside of the channel. The inner wall (16) of the seat acts as a splash guard. The spray-arm is mounted in bearings (214,102) which are formed in the walls (16,18) of the seat. The seat is able to pivot, for raising, on a pair of stubby pivot pins (36,38) widely spaced apart. One (38) is hollow, to convey water to the seat. There are no exposed hose pipes or other obtrusive components. The water control knobs (70,71,76) are accessibly located. Water leaves the spray-head (116) as a coherent tube of water, which gives rise to a soft, gentle stream, whether the flow volume is large or small. This is achieved by deflecting jets of water from nozzles so that the jets coalesce back into a stream.

Abstract: A receptacle adapted to be disposed for receiving, by gravity, waste discharges from a person is an elongated container having an elongated aperture defined at the top thereof for receiving waste into the container. The container has side and end surfaces specially formed with concave surfaces to direct laterally-moving fluid waste in the container, the motion being caused by movement of the receptacle, in a generally upward direction, and the container has a portion for thereafter directing the fluid downward, back on itself to dampen sloshing or wave motion to prevent spillage and splashing. In another aspect, the receptacle is disposed in waste-receiving relationship to a person on a chair for an incontinent disabled person, the chair having an apertured cushion disposed over the receptacle which is mounted to be removed from the chair.

Abstract: An infant cradle assembly having a cloth sling sewn around the interconnecting tubes of a rectangular plastic frame. The frame is suspended by a plurality of elastic cords from a tubular fixture or sleeve capable of being attached to a strand, frame, and the like. The tubular fixture permits the length of the cords attached to one end of the frame to be adjusted relative to the other, so that the cradle may be tilted as desired in use. The cradle body is supported in a manner that it may undergo a multitude of motions while a baby is being rocked or swung.

Abstract: The invention relates to a resting device.According to the invention this resting device comprises an at least partly horizontal lying means extending at a distance above the ground and connected at its ends with uprights, which lying means is provided with an adjustably supported tube-shaped envelope, in which an opening is formed for getting in and out of the device, said envelope comprising on either side an end ring, which end rings are supported within the uprights by support rollers.

Abstract: A cervical support pillow having a generally semicircular cutout portion extending from the top edge to the central portion of the pillow, and two small sectorial cutout portions extending from the bottom edge to the central portion of the pillow, the two small cutout portions being spaced apart from each other by a cervical support portion between the two cutout portions. This pillow is intended for use when resting or sleeping.

Abstract: The work habits and lifestyles of the present day, with the stereotyped bent posture of the head, result in a shortening of the corresponding muscle parts. To achieve regeneration during sleep, an orthopedic pillow is provided, and this has in the lower region a thickened portion for supporting the region of the cervical vertebrae, slight expansion of the shortened muscle groups being obtained.

Abstract: Air brake adjustment and measurement tools where the adjustment tool includes a long handle portion having a gripper assembly attached to one end and a socket wrench drive attached to the other end. The gripper assembly has a pair of facing jaw members adapted to engage opposing edges of a vehicle's air brake slack adjustment. The measuring tool includes a scale, and a permanent magnet attached to one end of the scale. In use, the measuring tool is placed next to the clevis rod of the vehicle's air brake assembly, and the adjustment tool is used to move the air brake slack adjustment between a braking and a non-braking position. The stroke of the clevis rod is measured by the measuring tool, and is adjusted by a socket wrench attached to a socket drive of the adjustment tool.

Abstract: A biplanar posting device having a board with a rear edge and a front edge and lines passing from the rear edge toward the front edge diverging toward the front edge and intersecting the front edge at an angle of about 70 degrees with a plate fixed to the upper surface of the board having end planar portions held in contact with the board and central diverging portions in the form of two flat planes diverging from the upper surface of the board at about 4 degrees and intersecting the planes in contact with the board at a line that overlays the diverging lines. An orthotic properly placed on the device and packed with plastic beneath the heel portion will inherently be formed with a lower surface to correct a defect in the bones of a patient.

Abstract: An apparatus and method for applying an adhesive coated wear portion to the underside of a shoe wherein the wear portion and the underside of the shoe are heated, a first pressure is applied to urge the wear portion and the shoe together, and a second greater pressure is applied in situ to further urge the wear portion and the underside of the shoe together. In one embodiment, a heating element may be provided for transfer between a first location for heating and drying a shoe and a second location directly between the shoe and the wear portion to be applied. The periphery of the wear portion may be trimmed to correspond to the underside of the shoe.

Abstract: A suction cleaning head of the kind which is connected to a suction hose in use and lifts off a surface to move, is manually steered by means of a steering wheel at the upper end of the hose which connects to the suction connection through a swivel.

Abstract: A device for cleaning the wheels, and particularly the wheel rims, of a vehicle in a car wash. The device has a plurality of rotating cleaning brushes which can be pressed against the wheels to be cleaned substantially in a direction perpendicular to the direction of travel of said vehicle, and a driver which can be actuated by at least one of the wheels, the cleaning brushes for the specific pair of wheels to be cleaned being mounted on a carriage; the carriage is freely movable in the direction of travel of the vehicle, and is coupled to the driver; the driver is actuated by at least one of said wheels and with the carriage in a starting position, produces the commencement of the cleaning process. Upon termination of the cleaning process the corresponding carriage is released whereupon provision is made for restoring the device to the starting position.

Abstract: An apparatus for picking up surface litter on the ground includes a movable main frame towed by a lightweight vehicle. A roller carriage pivotally attached to the main frame supports identical front and rear oppositely rotating tandem rollers each having ground engaging rows of resilient fingers. The rollers are driven by a ground engaging drive wheel and sprocket gear arrangement. The resilient fingers spread apart to entrap litter and mesh between the rollers to transfer litter downstream, to a main frame conveyor for containment within a trash drum. A pair of wiper blades completely dislodge litter entrapped between the roller fingers and cooperate with upper portions of each roller to define a transfer path towards the conveyor. In a second embodiment, the trash drum is pivotally secured to the main frame to control the height of the drum discharge opening. In a third embodiment, a rectangular, box-like main frame is supported by a rear panel door of a dump truck.

Abstract: A cleaning element for cleaning the interior of heat exchanger tubes by being carried along by a cooling water stream and automatically squeezed through the tubes by the cooling water stream, includes a sphere foamed in a closed mold, the sphere being formed of an open-cell sponge rubber core and an open-pore water-permeable skin integral with the core.

Abstract: A bowling lane cleaning apparatus serving as a lane duster, including a rigid frame having a transversely disposed spacer bar with a foam padded bar disposed beneath the spacer bar. The padded bar works in conjunction with cloth roller bars to provide adequate wide area exposure of cloth fabric to the bowling lane surface.

Abstract: A mop handle has a Velcro strip secured to the lower end thereof and a mop head has a Velcro strip secured around the inner surface thereof. The Velcro strip on the mop head is arranged for releasable engagement with the Velcro strip on the handle whereby the mop head is readily attached and detached. The outer surface of the mop head has Velcro elements to provide an exterior band.

Abstract: A windshield wiper assembly including a one-piece plastic shaft and crank coupling the drive unit to the driven assembly.

Abstract: A rotary damper device comprises a base plate, a rotary cylinder rotatably disposed on the base plate through the medium of a damper, and a coil spring interconnecting the base plate and the rotary cylinder. The base plate and the rotary cylinder are interconnected to the main body of a device and the lid of the device. When the lid is opened or closed, the braking force of the damper and the resilient force of the coil spring cooperate to generate effective braking force and enable the opening-closing device to be opened or closed smoothly under the influence of the effective braking force.

Abstract: A method and apparatus for stuffing food product into shirred casing having an important application in the stuffing of large muscle groups such as whole boned hams. A demountable stuffing horn carries its own supply of shirred casing compressed in place at a high packing efficiency. Means are provided for readily and efficiently dismounting a horn from the stuffing machine when its casing supply is expended and mounting a replacement with a new supply in its place. Internal holdback means on the horn, manipulated through the casing by an external control device on the machine, provide a wide range of casing holdback force.

Abstract: An apparatus for shirring a tubular casing in which the compression of the shirred stick is produced by employing a tapered mandrel positioned between shirring wheels. The taper is carefully chosen to produce uniform shirring and compression.In the drawing (FIG. 3) is shown part of a shirring machine comprising a pair of shirring wheels 21.22 located on opposite sides of a mandrel 15. The mandrel 15 has a tapered section 27 which begins immediately upstream of the line 27B joining the centers 21A, 22A of the shirring wheels and continues a substantial distance downstream of the line 27B. Back pressure is generated by rolls 28, 29.A preferred rate of taper is about 1 in 5 but the rate of taper may be anywhere in the range 1 in 4 to 1 in 30.

Abstract: Apparatus for use in performing processing operations on birds supported by individual shackles in a head lowermost position and moving along a line in a processing operation. The apparatus includes adjustable frame support having drive means adapted to be selectively adjusted into and out of engagement with the moving processing line whereby adjustment into operable engagement with the moving processing line will effect a timed driving movement of the frame supported processing mechanism. The apparatus includes guide means supported in engagement with the bird supporting shackles and operable for movement between one adjusted position whereby the shackle supported birds are guided for movement along a path of engagement with the frame supported processing mechanism and a second adjusted position whereby the shackle supported birds are guided for movement along a path out of engagement with the processing mechanism.

Abstract: A safety belt buckle employs a pivoting latch plate for retaining a tongue plate tip within the buckle interior. A locking means for securing the latch mechanism in a latched position includes a sliding member mounted on the pivoting latch plate and urged forward by spring means.

Abstract: A quartz unit is arranged to permit its automatic manufacture. The quartz unit includes a quartz vibrator; a pair of opposed terminal metal fittings each consisting of a stem part, branch parts protruding from one end of the stem part on two sides thereof to form a Y shape and support parts protruding from the fore ends of the branch parts to carry jointly the quartz vibrator; electrodes of the quartz vibrator connected to the terminal metal fittings through the support parts; and a container consisting of front and rear halves which are joined together to effect sealing with the metal fittings interposed in between them. The stem, branch and support parts are obtained by punching from a metal plate in one unified body.

Abstract: The adapter for the torquing tool includes an elongated body having a bore in at least one end to accommodate a driver bit and a coupling means for detachably attaching the body to the tool. A depth adjustment bushing is threadably engaged within said bore, with the bushing being externally threaded to engage the bore. The bushing includes a body section and a shank section. An axial passageway extends through the shank section and an axial slot extending through the wall of the shank in communication with the passageway. A screw extends through a radial threaded opening in the body and into the axial passageway through the slot so when the driver bit is housed within the body section and extends into the passageway, it is held in place by tightening the screw. In a preferred form, the passageway has a hexagonal cross section for mating engagement with a hexagonal end section of the driving bit.

Abstract: Disclosed herein is an apparatus for forming and planting fastener elements comprising a ram mounted on a frame for reciprocal movement and having a cutting die provided with a passage for a wire to be used for elements and a forming die for forming an engageable head in an element, a cutting punch for cutting out an element from the wire, a forming punch for forming the engageable head in cooperation with the forming die and at least one side punch for planting the element on a fastener tape. The apparatus is characterized in that cam means for driving the ram, forming punch and side punch are formed on a common output drive shaft and arranged so that the ram dwells for a predetermined time at the end of each forward and backward movement and the side punch secures the element to the tape during the dwell of the ram at the end of its forward movement and the forming punch is actuated during the dwell of the ram at the end of its backward movement.

Abstract: The present invention comprises a two-ply spinning cot having a relatively hard outer layer and a relatively soft inner layer. A two-ply cot constructed according to this invention will exhibit the resistance to lapping demonstrated by hard cots, yet will produce high quality yarn normally obtainable only by using soft cots.

Abstract: In a process for the production of a heat treated bearing ring with at least one longitudinal slit extending axially therethrough formed by means of two abutting ends lying opposite one another in the circumferential direction, one or more flat band sections of heat treatable strip material are stamped with at least a holding tongue formed on one or both respective abutting ends and a holding recess on the opposite abutting end fitting the respective holding tongue with a force fit. The band section is bent to form a bearing ring, with each holding tongue of the one abutting end radially engaging the respective holding recess of the other abutting end on the respective longitudinal slit. The ring is then heat treated and then the holding tongue is broken out of its respective recess.

Abstract: An improved method of producing a scroll type compressor having an orbital scroll member and a stationary scroll member. The orbital scroll member is fabricated by a process comprising the steps of: forming an end plate and a spiral wrap separately, the end plate being composed of an upper half part having a discontinuous joining portion for joining the spiral wrap and a lower half part having an oil passage. The upper half part and the lower half part of the end plate are fixed to each other through mutual engagement between locating projections formed by a plastic work on one of the half parts and mating holes formed in the other of the half parts.

Abstract: A tool is provided which permits the removal and replacement of a defective axle box in a flow meter or volume-pressure corrector ("system member") without disturbing downstream consumers of the fluid (e.g.

Abstract: A method of constructing a lens of the type receiving a collimated beam of input radiation for transmitting a narrow sheet of output radiation of substantially uniform intensity over an angular range of approximately + and -45 degrees relative to the input radiation beam. The method includes steps relating to defining the lens surface geometry and to implementing that geometry on a transmissive material having an index of refraction no greater than 1.6. The implementation of the method employs grinding and polishing steps which may be carried out by a disclosed lapping machine.

Abstract: A method of manufacturing an optical fibre relay structure including fixed and movable parts provided with mutually parallel optical fibres. The fibres are fixed to a base plate in V-shaped grooves with the aid of gluing or bonding. The base plate and fibres are then parted by a cut at right angles to the axial direction of the fibres and to a planar edge surface of the base plate. There is thus obtained two mutually conforming parts respectively forming the fixed part and the movable part in the optical fibre relay.

Abstract: A brake system for a railway vehicle and method of making same are provided and such brake system comprises a brake rod member, a horizontal supporting member which is adapted to support the rod member for sliding movements thereon, and an antifriction component carried by the supporting member with the component serving to minimize wear and enable antifriction movements during the sliding movements and wherein the component comprises a solid strip portion of substantially rectangular cross-sectional configuration with the system further comprising at least one self-contained clip device for locking the strip portion against the supporting member and the clip device comprises a pair of resilient parallel legs and locking projections extending from the outer end portions of the parallel legs toward each other, with the clip device being disposed with the parallel legs embracing opposed vertical surfaces of the supporting member and with the projections snap locked beneath a bottom surface thereof.

Abstract: An applicator for installing a retaining ring into an external groove of a workpiece comprises a base plate forming a ramp. A forward end of the ramp includes a slot for receiving a groove workpiece. A groove locator is mounted on the base plate for movement between a locating position within the groove of the workpiece, and a retracted position. The groove locator is yieldably biased to its locating position. A pusher is mounted for sliding movement along the ramp for pushing a retaining ring forwardly into engagement with a cam face of the locator to cam the locator to its retracted position as the retaining ring enters the groove of the workpiece.

Abstract: An oil seal mounting jig for mounting an oil seal in a hole formed in the wall of a machine housing, the oil seal being provided on the inner periphery thereof with an annular oil-side tapered surface for contact with the oil to be sealed and an air-side tapered surface having an inclination angle greater than that of the oil-side tapered surface. The oil seal mounting jig has a hollow insertion cylinder opened at its one end and closed at its other end. A hub member for carrying the oil seal is adapted to be slidingly received by the cylinder from the open end of the latter and has an outer peripheral surface of an outside diameter substantially equal to that of a shaft on which the oil seal is to be mounted, one end surface of the hub member having a chamfered portion adapted to abut the oil-side tapered surface of the oil seal.

Abstract: In the conventional process of manufacturing sheets of metastable austenitic stainless steel, a mechanical polishing step is included before or after the final temper rolling step. By insertion of this step, the fatigue resistance of the produced steel strips and sheets is remarkably improved.

Abstract: The present invention is directed to a gang head for a replaceable gang head type machine tool. The machine tool includes a base, a jig table, a driving member mounted on the base and movable to an advance and retract with respect to the jig table, and an annular rail surrounding the driving member. The annular rail has a rear stationary rail and a movable front rail, the movable rail movable to advance and retract with respect to the jig table along the same direction as the driving member. The gang head comprises a base frame mounted on the movable rail, a working unit mounted on the base frame, wherein the working unit is inclined at an angle other than a right angle, with respect to the direction of advance and retraction of the movable rail, an oil pressure pump, and an oil pressure operated cylinder. The oil pressure cylinder being operatively coupled to the working unit for advancing and retracting the working unit with respect to the jig table.

Abstract: A heterojunction semiconductor is provided where the carrier transport dimension is governed by a layer thickness and where the characteristics of the materials self-limit process steps. A field effect transistor is provided wherein the work function is matched across regions to reduce limits on the channel dimension. A vertical transistor is provided wherein a vertical web is formed with precise thickness governed by electrolytic etching using photogenerated carrier current.

Abstract: A method of producing an integrated insulated-gate field-effect transistor with an increased breakdown voltage provides in that at least one of the two zones, i.e. the source zone and/or the drain zone is surrounded by a relatively high-ohmic partial zone. This partial zone or the partial zones are first produced by way of ion implantation with the aid of a first implantation mask. After removal of this mask, the entire area of the field-effect transistor is covered with an oxidation masking layer comprising several selectively etchable partial layers, of which the lower partial layer is finally exposed and serves as the gate insulating layer. With the aid of the photoresist mask serving as an etching mask, openings are etched through the oxidation masking layer. The photoresist mask, together with the portions of the oxidation masking layer remaining therebelow, is used as an ion implantation mask for manufacturing both the source zone and the drain zone.

Abstract: An SFL operator and process for its manufacture. The operator is manufactured from a low-doped P-type substrate on which are successively implanted a highly-doped P-type layer and a highly-doped N-type layer. Below a metallic collector contact of the NPN transistor of the SFL operator, the structure successively comprises an epitaxial N-layer, an average-doped R-type layer and a highly-doped N-type layer. This structure is compatible with the manufacturing on the same silicon chip of both SFL operators and classical linear bipolar transistors.

Abstract: Batch practices of magnetic film deposition and circuit structuring are merged upon a common semiconductor substrate (chip) for both circuit and head parts. As to any one head being formed, the substrate is suitably doped and metallized to form electronics designed for cooperation with such head; then, thin films (cores) of magnetic material are deposited on the semiconductor substrate for cooperation with the electronics. After the thin film head cores are appropriately gapped, a (common) yoke is brought into contact with them . . . the substrate being thereafter contoured through its underside to expose the thin film core gaps.

Abstract: A machine for forming a head and a bulge on a copper pin and to connect the pin to a ceramic substrate by a single application of impact force at high velocity and controlled energy conditions includes an air cylinder within which a piston of controlled mass moves due to the effect of compressed air stored in an accumulator. A die block includes a two dimensional array of holes into which are fitted pin blanks that extend above the surface of the die block and on which is fitted a substrate having an identical array of pin holes formed therein. The pins are fitted within the die block and on the substrate such that a predetermined length of the pin blank extends above the surface of the substrate and a controlled length of the pin blanks extends between the substrate and the die block. The pins are retained within the die against axial movement and the holes in the substrate and die block provide radial restraint to the pins following the application of the impact force.

Abstract: The method of assembling lead-mounted electric components such as DIP 18 in automated fashion to a printed circuit board 14 is accomplished by building up a crimping tool (FIG. 7) comprising a base 28 with crimping anvils 12, 20, 22, 24, by selectively positioning and orienting the anvils on the base while the base is energized to provide a moderately low strength field, and the base is then energized to provide an adequately high strength magnetic field to retain the anvils properly during the subsequent steps of mounting the components to the board and crimping the leads to produce a particular type of board. After the requisite number of boards of a particular type are built, the anvils are removed to storage and the base is rebuilt to provide a different array of anvils for a different board.

Abstract: This invention relates to a light weight, portable, hand-operated device for extracting the kernels of very hard-shell edible nuts in premium-size pieces without crushing. On black walnuts the device is effectively used: first to split the nut along its natural suture; and then by using its tooth-like nippers, the hard shell of each black walnut half is split into very large portions along five outlined paths thereby releasing the kernel in large premium-size pieces. The invention is comprised of jaws with nippers, a lock to hold the jaws closed, a splitter blade mounted on one handle and a slotted safety ring mounted on the other handle adjacent to the splitter blade.

Abstract: A nail clipper having two relatively movable jaw members with mating cutting edges and a jaw-operating cam lever in combination with a receptacle, having top, bottom and side members, for catching and retaining the nail clippings as they are sheared from the user's fingernail. The receptacle has an opening therein for receiving the nail clipper so that the cutting edges of the jaw members are within the opening of the receptacle. The bottom member of the receptacle includes a concave arcuate edge adjacent the opening of the receptacle and the clipper is securely positioned in the receptacle by a wedging block and a rivet extending through the clipper, the wedging block and the top and bottom members of the receptacle.

Abstract: Cutting tools for shaping or reshaping the airfoil edge of a blade of a gas turbine engine to produce a uniform blade leading edge shape on the operative portion of the blade.