Abstract: The cutting rate and useful life of conventional resin bonded coated abrasive products in extremely high pressure abrading operations is significantly increased by using abrasive mineral which consists essentially of fused zirconia. Substantial amounts of diluent may be included, e.g., by blending other less effective abrasive grains with fused zirconia grains or by crushing a hardened co-fusion of alumina and zirconia.

Abstract: A lock-up clutch having high durability and high reliability of operation is provided in the present invention.

Abstract: A mining machine comprises a laterally elongated cutting head including ms for cutting an earth formation, a laterally elongated thrust transmitting column connected to and extending rearwardly from the cutting head, and a power head connected to the rear of the column and operative to thrust the cutting head forward into the earth formation by means of the interposed column. The column carries a non-thrust transmitting column conveyor for carrying fragments cut from the formation from the cutting head to the power head.

Abstract: Use of certain cinnolines as pesticides and pesticidal compositions containing them.

Abstract: A method of treating inflammation and inhibiting prostaglandin synthesis employing substituted 2-(arylmethoxy)phenol compounds.

Abstract: A synergistic fungicidal composition comprising (1) at least one carboxidide of the formula ##STR1## in which Y represents a bifunctional group linking the two carbonyl groups with formation of an optionally substituted 5-membered heterocyclic ring with a total of 1 or 2 hetero-atoms (O and N),and (2) ##STR2##

Abstract: Carboxymethyl cellulose has not heretofore been universally useful as a thickener for drilling muds due to sensitivity of its aqueous solutions to the high level of inorganic salts contained in such muds. The inclusion in the carboxymethyl cellulose of hydroxyethyl functionality reduces this salt sensitivity to a level where it can be employed to thicken drilling muds, even those containing calcium salts. Carboxymethyl hydroxyethyl cellulose of carboxymethyl D.S. of 0.1 to 1.0 and hydroxyethyl M.S. of 0.5 to 2.5 are useful.

Abstract: Thickening of heavy brine solutions based on calcium halides by use of carboxymethyl hydroxyethyl cellulose is disclosed wherein the carboxymethyl substitution level is about 0.05 to 0.35.

Abstract: A boxing glove with thumb tie down has been provided which incorporates a connecting bridge which holds the thumb in essentially a closed or nested position at all times. The connecting bridge extends from the upper edge of the thumb sheath to the thumb guard location as a controlled thumb feature. The connecting bridge provides limited mobility of the thumb to prevent thumbing and eye injuries. The improved boxing glove maintains the thumb sheath in a tight position to prevent causing injuries such as gouging, yet permits the confined hand to relax at the boxer's discretion.

Abstract: A disposable garment comprising, a gown having a pair of sleeves, a front, a pair of side margins defining an open back for the gown, and a tunnel having a pair of opposed closed sides, and a pair of opposed ends being open. The garment has a first belt having one end secured to the gown and the other end being free, and a second belt having one end secured to the gown. The garment has a transfer card having one end received in the tunnel through one of said open ends, and the other end of the first belt is releasably attached to the card adjacent the other end of the card.

Abstract: An improved jump suit with a rear drop-seat panel that opens downwardly is provided. The suit has a flexible panel mounted across the inside front portion thereof to define pockets therewith. The panel further extends on either side of the suit to define tapered flaps which overlap around the rear portion of the suit near the waist and under the drop-seat panel when it is raised to the closed position.The overlapped flaps are joined by attaching means such as VELCRO and the drop-seat panel has attaching means thereon such as VELCRO or zippers which engage matching fasteners on proximate portions of the flaps when the panel is closed over the flaps.The overlapped flaps supplement the strength of the jump suit and enhance the fit thereof and reduce draftiness at the seams of the drop-seat panel.

Abstract: A surgical drape for use on a patient's head is disclosed. The drape comprises a head sheet for placement on the patient's head and a main sheet for placement under the patient's head. The head sheet has one open end to be wrapped around the patient's head. The opposite end of the head sheet is closed. There are cuffs on both the main sheet and the head sheet for aseptically placing the drape on the patient.

Abstract: A hood-like garment which can be comfortably worn over the head of the user to protect clothing being put on or removed from becoming soiled with cosmetics of facial oils is disclosed. The garment is lightweight, flexible, and nonrestrictive of the user's movement and vision and constructed to prevent direct contact of the garment with the user's face and hair. The garment is formed with an aperture in its bottom portion with two embodiments of the garment including an elastic band that permits initial expansion of the aperture for placement over the head and subsequent contraction to position and hold the garment in place. An area of expansion in the garment about the chin provides for positioning the garment and facilitates chin movement. A second aperture formed in the top of the garment may be further provided to facilitate additional locating and positioning of the garment on the user's head.

Abstract: A surgical network material is made from filaments of resorbable organic polymers with a thickness of about 50-300 .mu.m and/or of non-resorbable filaments or wires with a thickness of 100-750 .mu.m. The network which has an internal mesh width of about 1-10 mm, can be used, in particular together with bone cements based on polyacrylates or polymethacrylates, in combating bone defects.

Abstract: An annular toilet seat having a top surface that includes a raised forward segment and a raised rear segment in which the rear segment is raised to a higher level than the forward segment. Inclined segments referred to as intermediate segments bridge the forward and rear segments. A heart shaped contour line indicating the edge of the highest level points extends through the central region of the forward and rear segments and along the central opening in the intermediate segments. The raised rear segment provides comfort and aids in elimination.

Abstract: A waste outlet fitting for a bath, basin, sink or the like comprises a tubular body in which a plug is captively mounted. The plug includes a part-spherical periphery which is complementary to a part-spherical seat formed in the tubular body. The plug may be rotated between the closed position shown and an open position in which the plug member stands up-right within the tubular body by application of finger pressure to the edge of the plug. The tubular body may comprise an outer tubular member and insert member as illustrated, or may be in the form of an integral plastics moulding.

Abstract: A modular, pre-plumbed shower unit is of self-contained nature facilitating rapid shower installation, and includes a plumbing tree including conduits interconnecting a shower head fixture, a tub spout, and control valve for controlling hot and cold water flow to the shower head or tub spout. Resilient pinch mounting brackets secure the plumbing tree to an exterior wall surface. Water supply connections to the control valve are made outside of the wall through an opening therein. A pre-molded shell is secured to the plumbing tree to surround and conceal the plumbing tree in overlying relationship to the wall while concealing also the wall opening. The shower head fixture, tub spout and a handle for the control valve are connected by openings in the shell.

Abstract: An improved, portable auxiliary seat cushion is described having a seat panel and a back rest panel hingedly connected to form a unitary structure, the under side of the seat panel and the rearward side of the back panel being composed of a flexible resilient synthetic plastic foam having a high coefficient of friction, and including means such as stitching extending across the hinged connection and anchored in the seat panel and back panel to or other means to provide tension biasing the back panel upwardly and rearwardly away from the seat panel so as to prevent the back panel from falling forward onto the seat panel, the biasing means, which may be elastic, also cooperating with the high coefficient of friction of the plastic foam to resist displacement of said seat cushion relative to any underlying supporting structure such as the seat of an automobile.

Abstract: An adjustable combination tool forming a C-clamp, a valve pulling device for valves in small gasoline engines, a wrench for turning starter clutch housings in such engines and a device for removing flywheels from such engines. The tool comprises a first bar, a second bar selectively positioned parallel or perpendicular to the first bar, an angle iron positioned perpendicular to the first bar, a projection at one end of the first bar, and a threaded bolt with an enlarged end threadedly carried by the second bar. A device for valve grinding is carried by the threaded bolt and acts as its handle.

Abstract: Textile yarn is led through the front face of a die 11, which is located on a moistening device 8, before being fed to the texturing jet 15. The die is fed from a pipe 7 leading from a moisture tank 1 and has an outlet aperture on its front face at the termination of an internal bore. The quantity of fluid fed to the tank 1 is so adjusted by means of a flow regulator 5, that a fluid level h is maintained in the tank, which corresponds to a throughput of fluid through the bore of the die 11 which is matched to the titre and the rate of flow of the yarn.

Abstract: A suspension bridge has a pair of horizontally spaced towers between which is spanned a main catenary cable. A flexible spacer element, normally a cable, extends along the main cable between the towers and is provided with generally equispaced spacers. Respective hanger assemblies are fixed at the spacers and can slide on the main cable between the towers. Respective upright hangers defining a vertical plane with the main cable have upper ends connected to the hanger assemblies and lower ends and are provided with adjusters between these ends for shortening and lengthening the distance therebetween. Respective girders are secured to the lower ends and extend generally perpendicular to the plane and respective path sections extend generally horizontally and each have one end hooked over a respective one of the girders and another end hooked over an adjacent girder.

Abstract: In a combination sweeping, polishing and scrubbing floor maintenance machine, the present invention includes a debris hopper removably positioned in a frame secured to a portion of the machine. The debris hopper has a rearward opening facing a pair of substantially side-by-side disc tools, e.g. brushes. The brushes preferably rotate in the same rotational direction with one brush positioned slightly ahead of the other brush. Immediately in front of the forward edge of the leading brush is a conduit means secured to the hopper. Adjacent the conduit means and extending along the hopper opening is a flexible member. Both the flexible member and the conduit means serve as debris receiving means for directing swept debris upwardly into the debris hopper. Blade members may be provided forward of the debris receiving means and beneath the hopper to guide debris into a central area of the machine's path of travel.

Abstract: A sphere launching apparatus for selectively admitting spheres into a pipeline and comprising an angularly disposed support or track for storing a plurality of the spheres thereon, an access port at one end of the track for receiving the spheres therethrough for disposition onto the track, a discharge port at the opposite end of the track for discharging the spheres therefrom and injecting the spheres into the pipeline, the support member being interposed between the access port and discharge port for supporting the spheres in two parallel but offset substantially sequential relationship upon the track, and a release mechanism extending into the proximity of the support or track for alternate engagement with the leading sphere of each of the two parallel sequences thereof for releasing a single sphere at a time for passage through the discharge port for injection into the pipeline.

Abstract: A permanent handle for a disposable brush or mop head. The handle comprises an elongated hollow body having a bottom and top end, the bottom end to releasably frictionally engage a disposable brush or mop head and secure it in working position on the handle body. When it is desired to change the head, a plunger longitudinally movable within the elongated body is manipulated by the user to bear against a portion of the brush or mop head and dislodge it from frictional engagement with the body. In this manner the operator can avoid touching a soiled brush or mop head when removing it from the handle for replacement.

Abstract: A toothbrush the handle of which is set back in relation to the cleaning head and is so shaped as to afford optimum adaption to the anatomy of the face and of the hand.

Abstract: An industrial cup-shaped brush in which both inward and outward pivotal movements of the wire bristles caused by scrubbing or rotary motions is effectively resisted by providing elongated supports on the knot plate for the wire bristles and anchoring the bristles to the elongated supports by elongated loops of generally complementary shape to the elongated supports.

Abstract: A windshield wiper comprises a pressure-applying superstructure and a squeegee assembly releasably mounted on the superstructure to permit replacement of the squeegee when worn. Releasable retaining means comprise a projection on one of the superstructure yokes adjacent to an endmost pair of the claws thereof that retain the squeegee assembly and a cooperating recess on the backing member of the squeegee assembly. The retaining means thus uses the flexibility of the backing member to provide the necessary retention. The projection may have a ramp shape to facilitate the latching action as the squeegee assembly is mounted.

Abstract: A power head device for use with an external source of vacuum, which device includes an outer housing defining therewithin, in one embodiment, a brush chamber, a vacuum chamber and a dry chemical carpet cleaning powder retaining chamber. The powder retaining chamber is situated adjacent the brush chamber and is further fashioned with a device for selectively dispensing the powder onto a carpet. A horizontally oriented brush is provided having bristles offset with respect to a centerline thereof so as to provide improved agitation of the powder into a carpet on rotation of the brush opposite the direction of the offset during a cleaning mode of operation. In a vacuum mode of operating, the brush rotates in the direction of the bristle offset and towards the vacuum chamber of the housing.

Abstract: The problem in picking up and collecting very fine dusts such as aluminum dust, cement and the like is to exhaust the transport air into the atmosphere without dusts.

Abstract: A multiple flight elevator system is disclosed for use in a mobile sweeper in combination with a pick-up broom and a debris receiving hopper. The elevator features the combination of mechanical elevating means which moves heavy articles or bulky masses of debris upwardly within the hopper while relying on a low volume blower for moving light articles and dust into the hopper providing a cleaner swept surface and minimizing the exhaust dust problem. Two embodiments are disclosed each including a plurality of independently driven flexible resilient paddle wheels in combination with a low volume blower for progressively raising the debris from the broom through an elevator housing and into the hopper. The lower end of the housing of the first embodiment is disposed close to the surface being cleaned and the housing is pivoted to the sweeper chassis in order to move over contacted abutments.

Abstract: A swivel castor comprises a pair of wheels (17) inclined inwardly to the upstanding swivel axis (11), such that the bottom of the wheels are spaced apart further than the tops. The swivel axis is offset forwardly of the wheel rotational axes. The arrangement gives improved support capacity and swivellability.

Abstract: A track roller carriage assembly, a pair of joining plates joined face to face and each having a half-round deformation portion intermediate its ends, the two deformation portions defining a bolt aperture the upper edges of the joining plates being notched downwardly to provide receiving shoulders, and a suspension bolt having on it a head which contains slots which engage side faces of the joining plates adjacent the notches to thereby prevent rotation of the suspension bolt itself.

Abstract: Over-center hinge (10) whose jamb-related part is in the form of a supporting arm (16) coupled by two links (18 and 20) to the door-related part (14) in the manner of a four-joint hinge. In the linkage end of the supporting arm (16) there is provided a thruster (26) whose one end is mounted so as to be longitudinally displaceable under resilient bias and rotatable about the fixed pivot (28) of one of the hinge links (18), and whose other end, which is provided with a cam (42-44), is urged against a crosspiece (36) in the supporting arm (16). By way of studs (50) on the other hinge link (20), which are guided by a cam (48), the thruster (26) is swung during the hinge movement, while in the vicinity of the closed position a ramp surface (44) cooperates with the crosspiece (36) in such a manner that the thruster (26) is swung towards the second hinge link (20 ) and exerts a force thereon acting in the closing direction.

Abstract: An apparatus for use in pig-slaughterhouses for the removal of the toe-web between the toes of the hindlegs of a slaughtered pig. The bodies of slaughtered pigs, vertically hung on carrying-yokes, are carried by a conveyer. The bodies are oriented by a spring-loaded yoke so that they will pass through a removing-station with the hindlegs perpendicular to the direction of transportation. A double swing is placed on each side of a rotating milling-cutter (of the metal-milling type). The swing allows the milling-cutter to rotate in a plane parallel to the direction of transportation. The milling-cutter also positions itself with an elongate guide into the right position for each subsequently arriving and passing pair of hind-legs.

Abstract: A method for training a gin saw assembly and a ginning rib assembly that have been removed from a cotton gin includes a telescoping stand on which the gin saw assembly, including its bearings is temporarily mounted. The apparatus includes an adjustable template with alignment marks with which the individual gin saw blades are manually aligned. The apparatus also includes mounting elements by means of which the ginning rib assembly can be mounted adjacent to the gin saw assembly after the gin saw blades have been trained. The telescoping stand is then extended so that the gin saw blades extend into narrow gaps between the individual ginning ribs in substantially the same relation thereto as when the gin saw assembly and ginning rib assembly are operating in the cotton gin. The individual ribs are then adjusted so that the gin saw blades are precisely centrally positioned in the gaps.

Abstract: A button assembly is disclosed for attachment on a garment fabric, which assembly comprises a female or button part having an apertured shank and a male or fastener part having a pointed shank for insertion into the aperture of the female shank. The button assembly is provided with means for expelling the air entrapped within the aperture of the female shank which would otherwise cause rupture of the button part.

Abstract: A slider to be applied to ribbons for clothing articles comprising a first portion and a second portion integral with the first portion. The first portion on a surface thereof is provided with projections for ultrasonic welding to a ribbon. The second portion has two slots that slidingly receive a ribbon, these slots being separated by two confronting, resiliently flexible arms. In the assembling process the slider is first secured to the end of a ribbon by welding, generally ultrasonic welding; then a punch moving transversely of the arms pushes a length of the ribbon beyond the arms, simultaneously flexing the arms. When the punch retracts, the arms spring back to their undeformed condition and the ribbon is left astride the arms.

Abstract: An improved buckle for a child's safety car seat in which a release plate normally bears against a center plate, within an enclosing housing, to receive in locking relation hasp tips having opening cooperating with bosses on the release plate. The housing is configured to avoid cocking or blocking of the hasp tips on insertion, and to bias the housing covering the bail portion of the buckle against peeling away to expose the metal to the harness straps connecting the buckle to the child's car seat.

Abstract: A cable clamp comprises a clamp body provided with an adhesive layer and a peeling layer to cover the adhesive layer a lower surface and with a cushion member applied to an upper surface, and a pressure element which projects from a side surface of the clamp body and has a cushion member applied to a lower surface, wherein the clamp body and the pressure element are formed integrally by thin metal sheets, thereby cables in any shape can be clamped without damaging insulation portion thereof.

Abstract: A casket shelf is mounted on the upholstery of a casket lid. The shelf includes a retaining portion which fits into a slit formed into the upholstery to support the shelf in cantilever fashion. The shelf may include a planar support surface, or mutually inclined support surfaces for supporting objects such as a book.

Abstract: An improved method for manufacturing a relatively thick, needled, non-woven fiber padding eliminates the conventional step of initially making a laminated blanket of garnet formed, thin, oriented fiber layers. Instead, this method initially forms a thick, single layer blanket of loosely piled, randomly oriented fibers, which blanket is simultaneously compressed and tack needled incremently along its entire length to intertwine and mechanically interlock random portions of the fibers. Thereafter, the conventional needling step is applied to complete the padding.

Abstract: The present invention relates to an industrial process for manufacturing jewelry such as rings preferably in precious metal set with stones, consisting in the following operations:drilling into the said base, of a cylindrical hole of suitable dimensions,provision on the periphery of said hole and at a certain distance of the surface on which the stones will appear, of a pre-setting groove whose dimensions are adapted to those of the stone, andfitting the stone in the pre-setting groove by clipping.

Abstract: A roll for use in calenders or like machines has a hollow cylindrical shell which spacedly surrounds a carrier and whose internal surface engages the external surfaces of several bearing elements each of which is biased against the shell by at least one hydraulic pressure generating device having a cylinder on the carrier or on the bearing element, a piston on the bearing element or on the carrier, and an annular seal recessed into the cylinder and engaging the periphery of the piston. The bearing elements can reciprocate in the radial direction of the shell as well as pivot about axes which are parallel with or normal to the axis of the shell due to the provision of swivelling joints having sockets machined into the bottom faces of cylinders in the respective cylinder chambers and spherical heads extending into the associated sockets and having shanks secured to the end faces of the respective pistons, or vice versa.

Abstract: A take-off roll for opening fiber bales by loosening fiber flocks therefrom contains toothed discs mounted along and upon rotatable shaft. Each toothed disc comprises semi-circular or half-discs which substantially are in the form of half a circular ring. An approximately half or semi-circular ring-shaped cup is provided for each half-disc. Each of the half-discs is embedded in the cast cup or cup member, and the cup members of the half-discs which are assembled together to form one of the toothed discs surround the shaft in a substantially ring-shaped manner. The cup members are releasably mutually fixed and rigidly connected to the shaft by a press fit. Certain advantages of the inventive take-off roll consist in easy replacement of any damaged half-disc and its cup member, and a free adaptability of the staggering of the teeth between the toothed discs. This permits elimination of the occurrence of undesirable vibrations of the take-off roll.

Abstract: A sealed heat pipe of uniform cross sectional profile from evaporator to condenser which includes a plurality of capillary channels communicating with a central channel by means of narrow re-entrant groove openings having convergent entrances. A two step method of fabrication includes extruding the re-entrant grooves, then drawing a mandrel through the virgin extrusion.

Abstract: A rail anchor remover includes a wedge member affixed to a rail lifter for progressively moving an end of each rail anchor away from the rail web until it no longer grips the rail base and falls to the ground. The wedge is provided with a tailpiece having a bearing surface engaging an outer edge of the rail flange for stabilization of the wedge, and are undercut surface which slopes downwardly and inwardly from an outer side wall of the wedge and slopes at a progressively steeper angle toward the tailpiece.

Abstract: A universal tool for installing harmonic balancers upon the end of an internal combustion engine crankshaft. The tool comprises an elongated threaded shaft having an inner end which includes a removable threaded adapter for attaching the shaft to the end of the crankshaft by means of an axial threaded hole in the crankshaft end. A bolt connects the threaded adapter to the shaft, and a thrust bearing slidably mounted upon the shaft is axially forced into engagement with the balancer by a shaft mounted nut whereby rotation of the nut forces the thrust bearing against the balancer pushing the balancer upon the crankshaft. The use of adapters having various sizes and thread specifications permits the tool to be employed with a wide variety of crankshaft sizes and models.

Abstract: A method of and apparatus for detecting ends of successive fly strips connected end to end by a slide fastener chain. The successive fly strips, with their first flaps overlapping a tape of one fastener stringer and with their second flaps overlapping the other fastener stringer, are fed lengthwise along a straight path. Then, the second flaps are folded over the respective first flaps as the fly strips pass through a folder extending through a fixed point on the straight path. During this folding, a trailing end of the preceding second flap is temporarily deflected so as to provide a relatively large triangular space between confronting ends of an adjacent pair of the second flaps when the same confronting ends arrive at the fixed point. Finally, a detector senses the presence of the triangular space, which indicates the arrival of confronting ends of an adjacent pair of the fly strips.

Abstract: A device for providing a high tensile, electrically insulated connection ween two sections of the lead wire of an overhead power line is disclosed. The device is suitable for use as a line separator or phase separator of a lead wire which supplies power to the current collector of a railway vehicle. The device comprises spaced parallel, glass-fiber reinforced plastic insulating rods, each of the ends of which are connected with metal rods of the same outside diameter, and which are arranged in a common plane with the lead wire sections. Two tubular traverses extend transversely to the insulating rods and are rigidly connected to the metal rods at the ends of the insulating rods. A cable system is provided for suspending the device from a support cable. Also disclosed is a method of connecting the plastic rods with the metal rods to form high tensile connections, the metal rods having an axial clamping channel and the method including progressive radial compression of the metal rods about the plastic rods.

Abstract: Spent nuclear fuel elements of spherical shape are stripped of their outer graphite shell surrounding the graphite matrix in which fuel particles are embedded by being admitted one by one to a work space between a rotary milling disk and an axially shiftable, but non-rotary, reaction disk. The radially ribbed stepped surfaces of low-pitched helical configuration allow the spherical body to shift its position several times per revolution as it rolls around between the disks under pressure from a spring acting on the axially movable disk. A spacing collar prevents the two disks from approaching closer than a minimum spacing sufficient to prevent more than the outer graphite shell to be worn away. By operating the work space with two or more spheres therein at the same time, a damaged or out-of-round fuel element can be ground to a spherical shape if at least one of the spheres in the work space is truly spherical. Pairs of disks may be operated together in coaxial alignment to provide a high throughput rate.