Abstract: A double insulated vacuum motor assembly for use in wet/dry utility cleaners. Strategic elements of the motor assembly are shielded by or formed of electrically insulating material to prevent hazardous electrical current between the fan chamber and the motor and migration of fluids into the motor. A unique fan mounting arrangement permits a conventional motor shaft construction and use of a metal fan while preventing the possibility of electrification of the fan. Mounting arrangements and an insulating shroud for the vacuum motor and the fan chamber prevent migration of pressurized fluids into the motor.

Abstract: A vacuum cleaning machine comprising a hood forming a traveling vacuum chamber with an optimum combination of suction nozzle means and jet stream means for projecting a plurality of individual jet streams at a flat angle with the surface that is to be cleaned. A low ceiling plate is positioned between the suction nozzle means and the jet stream means so as to restrict the effective volume of the area that is acted upon by the jet stream means and the suction nozzle means. Associated with the low ceiling plate are a plurality of vertical partitions which divide the area into a series of narrow wind tunnels connecting the jet stream manifold to the intake of the suction nozzle means. A motor driven compressor is positioned above the low ceiling plate and provided with a conduit to deliver a compressed fluid to the jet stream manifold.

Abstract: A profiled hinge joint having joint wings designed in the form of profiled frame members, one joint wing being provided with a bead member extending longitudinally with the frame member, the other joint wing having a partially open, cap-shaped flange engaging the bead member and likewise extending longitudinally with the frame member.

Abstract: The present invention concerns a crush roll arrangement for a card web with two co-operating working rolls 6 and 10 as used, e.g. for crushing of seed and shell particles contained in a thin card web. At least one of the two rolls 6 and 10 is designed as a hollow member, the cylindrical sleeve 19 of which is pressurized inside and thus deforming in radial direction. By this deformation, which is counteracted by a second roll, the crushing pressure is generated between the working rolls 6 and 10. The sleeve 19 can, among other solutions, be of varying thickness along the longitudinal direction of the roll in such a manner that its radial deformation can be adapted in longitudinal direction along the working rolls 6 and 10.

Abstract: A method and apparatus for forming non-woven webs by separating fibers from a compacted sheet or sheets of the fibers utilizing a lickerin. The method and apparatus include provision for attaining substantially individual fibers from a compressed sheet of short papermaking fibers such as wood pulp or cotton linters, and also fibers from a compacted sheet of longer fibers such as rayon, and blending the long and short fibers together into a non-woven web in the continuous operation of the lickerin and associated equipment. For the purpose of obtaining the short (1/4 inch and less) papermaking cellulosic fibers of wood pulp or the like the nose of the feed bar for the compacted short fibers is spaced a considerable distance from the working circumference of the lickerin such that the compacted sheet tip vibrates and the feed of the sheet of short fibers is substantially radially of the lickerin.

Abstract: A clamp structure with a clamping band and with at least one plastically deformable so-called "Oetiker" ear to be contracted to tighten the clamp structure about the object to be fastened; to assure a substantially smooth, gap-free transition in the circumferential direction within the area of overlap, for example, of an inner and outer band portion in the area of mechanical interlock or of an insert member and corresponding parts of the clamping band, a tongue portion is provided at each free end of the inner part which is adapted to engage in a corresponding aperture in the respective outer part when the ear is contracted.

Abstract: A connector strip for conveyor belts includes a plurality of preshaped inidual connector elements (1) which are held together by a wire (2) secured to the inside of a leg of each connector element (1). The wire has a wave form shape whereby the bendability of the connector is maintained.

Abstract: A buckle of the type used to connect belts used for tying down cargo in vehicles. The buckle is formed of flat plate stock and has a structure adapted to withstand high compressive forces such as are applied to it when it is run over by loaded vehicles. The buckle operates on an overcenter principle, so that once it is locked further tension on the belts tends to keep the buckle locked. In using the buckle, initially the free end of one belt is threaded through the buckle and pulled to take up slack. The free end is jammed between the standing end of the belt and a portion of the buckle, preventing slippage. Next, the handle of the buckle is rotated approximately 180 degrees, which causes the standing part of the belt to be wound around the buckle, thereby placing the belt in tension. Towards the end of its throw, the handle of the buckle passes to an overcenter position, in which further tension in the belt locks the buckle more securely.

Abstract: Process for assembling a slider to the fabric of an article of clothing or outfit thereof.A slider is used as made of thermoplastic material, having a portion defining at least one passage and slide slot for a ribbon and a fabric anchoring portion; the fabric is contacted with the slider anchoring zone, then ultrasonic vibrations are generated to provide partial melting for the thermoplastic material of the corresponding slider portion, at the same time applying a pressure to the fabric for causing the diffusion of the molten thermoplastic material through the fabric loops.

Abstract: A locking device for bracelets and necklaces having two ends, each provided with a chain link, includes a first plate and a second plate which are pivotably coupled together for movement about a common pivot axis between an opening and locking position. The plates each have an aperture formed therethrough aligned with the pivot axis through which one of the chain links may extend and the first plate has a hook-like end portion for receiving the other of the chain links. The second plate has an arcuate slot formed therein running in a concentric manner with respect to the pivot axis which defines an arched portion on an end portion of the second plate disposed distal to the pivot axis relative to another end portion thereof. The arched portion also runs concentrically with respect to the pivot axis and, in the locking position, is received through the other chain link received in the hook-like end portion of the first plate.

Abstract: A lightweight burial vault made entirely of plastic with appropriate stabilizers and additives which can be sealed so as to be moisture proof and has sufficient strength and durability to withstand the loading forces of the fill earth, comprises a base unit forming the floor of the vault and a dome-like cover having a concave top integrally molded to the upstanding side and end walls thereof. A system of ribs is formed integrally to the outside of the cover, and means are provided for sealing the cover to the base unit. The base unit may have a plurality of spaced apart troughs extending thereacross to collect fluids inside the vault.

Abstract: An independant carrier for caskets and the like, which carrier provides handles whereby the casket may be readily carried about with the carrier capable of having the handles folded into a collapsible relationship for storage and ease of handling when not in use.

Abstract: Textile strands are dyed while being bulked or crimped by lengthwise compression. The dyestuff advantageously is supplied in finely divided liquid or preferably solid form and is injected, as by aspiration or by positive pressure methods, into fluid hot enough to vaporize it before such fluid together with such dyestuff comes into contact with strand so treated. Such strand, forwarded with or by flow of hot propellant fluid into a foraminous region in which the strand is confined laterally but from which the fluid may escape except where the strand is compressed into a compact mass, is exposed to the dyestuff by permeation with such fluid. Lateral escape of the propellant fluid is effected, preferably before such exposure, and is utilized to control an operating condition, such as temperature of strand input into and/or speed of removal of strand from the chamber, for improved uniformity of dyeing and bulking or crimping of the strand.

Abstract: A method and an apparatus are disclosed for forming expanded mesh sheet from deformable strip by the steps of concurrently slitting and preforming the strip to provide transverse bands of slit and elongated wire segments projecting alternately from opposite sides of the plane of the strip separated by transverse bands of unslit strip, slitting the strip at alternate bands to extend slit segments in a staggered relation and laterally expanding the slit and preformed strip. Concurrent slitting and preforming and subsequent slitting can be effected by a cluster of three rolls or by a linear arrangement of pairs of opposed rolls.The invention has particular utility in forming expanded mesh sheet of exact final dimensions for use as battery grids from lead or lead alloy strip.

Abstract: There is disclosed, in combination with an apparatus for the manufacture of a fan wheel having a plurality of inclined elongated blades cylindrically mounted to a pair of end rings and at least one disc centrally keyed onto the blades and carrying a fan wheel hub, a press for fixing the end rings, the disc and the blades to each other, and a blade feed conveyor belt for carrying the required number of blades, to be assembled on the fan wheel, spaced at a distance corresponding to the position of the blades when assembled on the fan wheel, and for feeding the blades to the press.

Abstract: A method is provided for the manufacture of a capacitive pickup stylus. In the method of this invention an elongated stylus blank is prepared from a hard dielectric material such as diamond. The blank is formed into an elongated bar having substantially symmetrical diagonal cross-sectional halves along the length thereof and having opposing polished surfaces with one of the polished surfaces being on each of the diagonal cross-sectional halves. Thereafter, one of the cross-sectional halves is masked by a jig or the like and the other half which remains exposed is sputter coated with a conductive material. The coated stylus blank is then machined to provide a tip on a terminal end thereof with the coated polished surface positioned as the rearward electrode carrying surface of the stylus.

Abstract: A resilient compliant hydrodynamic fluid film thrust bearing includes a top bearing sheet of thin metalic foil material, and a lower supporting sheet of the same or slightly heavier gauge material. The top bearing sheet is stamped to produce an annular array of truncated sector-shaped flaps attached to the array along one radially extending edge. The second section is stamped to produce an annular pattern of raised projections formed by bending the material along slits to form radially extending bumps which resiliently support the first section. The two sheets are superimposed and aligned, and are welded together along the edge by which the sector-shaped flaps are attached to the first section. The welded assemblies are then sheared from the superimposed foils and deburred.

Abstract: Prior art truck hub has central boss with central axis, a plurality of spokes extending from the boss, and webs extending between the spokes. End faces of spokes commonly crack and by using method of invention the hub can be salvaged by removing from outer end of each spoke, a generally U-sectioned portion of end face and adjacent portions of spoke to form a pair of spaced shoulders on side portions of spoke. An annular rim or band is fitted on shoulders so that cylindrical inner face of band is adjacent generally axial edges of shoulders, and annular end face of band is adjacent radial edges of shoulders and partially annular edges of outer faces of spokes. Band is welded to ends of spokes to provide additional support for tire bearing rim.

Abstract: A duct reinforcement and a method for building the reinforcement including a special tool for use in a preferred method are disclosed. The duct reinforcement icludes a support washer on each of two opposing sides of the duct to be supported and a stiff wire extending through the sides of the ducts and both washers. The portion of the wire protruding beyond each support washer on the outside of the duct forms a hook with a tip of the wire substantially opposed to the outer face of the respective support washer. A preferred form of the support washer forms a volcano-shaped contour surrounding the washer hole on the outer face so that the tip of the wire makes contact with the washer inside the crest of the volcano-shaped contour. A preferred arrangement includes a rubbery seal between each support washer and the respective side of the duct to prevent leakage from the duct.

Abstract: A method and tool is disclosed for placing a series of beads on a braid of hair in which the braid is received through a loop formed of a cord on which the beads have been strung, the beads then being pushed onto the braid which is then removed from the loop.

Abstract: A method of making a leakage flux conducting device and securing it to a non-ferrous end plate of a prime mover. In this method, the device is formed with a mass great enough so that it remains unsaturated with respect to the leakage flux carried thereby, and the device is provided with a plurality of means arranged for deformation into engagement with associated parts of the end plate. The device is moved into an assembly position on the end plate, and the deformation means are deformed into engagement with the associated parts of the end plate thereby to prevent displacement of the device from its assembly position on the end plate.

Abstract: A rechargeable electrochemical cell pack is provided having a casing holding a plurality of electrically interconnected cells and having circuit breaking means to guard against the possibility of excessive supply and consumption of electrical power and the risk of damage or injury incident thereto. The circuit breaker comprises a small current fuse contained internally of the cell pack so as to give an external visible indication of its state and is removably mounted on an access door for replacement purposes.

Abstract: A ram tip component for inserting terminal posts in a wiring board includes an elongated body having an end face and a terminal post receiving passageway extending into the body through the end face and having outer and inner portions with respect to the end face. A terminal post entry slot extends laterally through the body and the end face and opens into the outer portion of the passageway, and a retaining spring is positioned in the inner portion of the passageway to bias the terminal post in the passageway against a wall thereof. The end of the body opposite the end face is provided with a bore communicating with the inner portion of the passageway, and terminal post stop pins of varying axial length are adapted to be supported in the bore to limit displacement of a terminal post axially inwardly of the passageway.

Abstract: A method for manufacturing microminiature solid state devices and apparatus for use in such a method. In various operations, e.g. wire-bonding and die-bonding it is essential to accurately orientate a header of the device. The header (1a) is mounted in a carrier strip (2) and is transported with approximately the desired orientation into the work area (6). Previous mechanical orientation techniques have caused both bending of the lead pins and adhesion between the header and the mechanical elements of the bonding machine. In this method, which is suitable for orientating devices with e.g. a T0.3, T0.5, T0.9 or T0.18 outline, magnetic attraction is used to pull two lead pins (12) against an abutment (14a) so that it becomes correctly orientated. The use of an electromagnet (7), which may be cooled using e.g. a nitrogen jet (17) or a water-cooling jacket (23), facilitates a periodic polarity reversal thus preventing any undesirable permanent magnetization.

Abstract: A clamp-squeezing apparatus for automatically urging a cable-engaging clamp of an electrical connector into clamping engagement with a cable is provided. The apparatus is particularly adapted for use in conjunction with wire-terminating apparatus. The squeezing apparatus comprises a movable carriage including a slidable plate on which is mounted a connector nest and pivotal squeezing arms having cam followers and squeeze jaws on opposed ends thereof. Upon movement of the carriage and nest into a desired position, the cam followers are urged by cam tracks in which they ride to urge the squeeze jaws together and squeeze the connector cable clamp into engagement with a cable.

Abstract: A hand-held fiber cleaving tool has an elongate channel for receiving a fiber, a shroud for exposing a part of the fiber and a fiber cleaving unit including a cutting element rotative through the shroud about an axis parallel to and spaced from the channel longitudinal axis for generally sectoral cutting of the fiber.

Abstract: The invention comprises a scissors having its cutting blades bend downwardly from the plane formed by the user's hand and the finger holes and operable with one hand to cut food into pieces and to grip a piece of food and direct it to the user's mouth.

Abstract: A chain saw is provided with a compact lever system which has the dual functions of tensioning the cutting chain and of protecting the operator from a broken chain.

Abstract: A preset brake device is disclosed for use with line drawing machines, drafting machines, and the like. A preset input station is disposed on a guide rail of the drafting machine, etc. A movable body on the guide rail holds a line drawing instrument. A preset distance is entered into the preset input station, the preset distance representing a desired distance of movement of the movable body along the guide rail. As the movable body is moved along the guide rail, when the distance traveled by the movable body equals the preset distance, an electro-magnetic brake automatically arrests the movement of the movable body along the guide rail. Two displays are included. One display on the preset input station displays the preset distance. The second display will display the distance traveled by the movable body along the guide rail.

Abstract: A constant pressure caliper commonly used to measure the thickness of skin folds and wherein the caliper arms are separated by the actuation of a slide mechanism and are urged together by a constant force spring acting through a linkage that applies a constant force to the caliper arms regardless of the distance the arms are opened. The caliper arms are pivotally connected in a housing such that the lever arm of the force for closing the arms and the lever arm through which the constant tension spring is acting vary proportionally to maintain the closing force constant as the arms are separated different distances.

Abstract: A machine vise protractor which can be installed onto and removed from the base of a machine vise while the vise is mounted on a table, to permit rotating the vise about a known center point to a desired angle. The protractor assembly is easy to make, can be adapted to a wide number of machine vises, and can be removed once the vise is properly located to keep the table uncluttered while the vise is clamped in place. The protractor can also be used with a plurality of vises for setting up several machine tools, or with several vises on the same machine tool without incurring the expense of separate protractors for each vise.

Abstract: A baseball shoe comprised of an upper shoe body, a unitary molded sole and heel affixed to the bottom of said body, metal blade-like spikes projecting from said sole in triangular pattern, and a cluster of blunt plug-like cleats molded integrally with said heel and adapted to be relatively noninjurious to peronnel or base bags when engaged by said cleats.

Abstract: An improved earth moving bucket which includes a plurality of hemispherical, wear-resistant members bonded directly to the undersurface of the bottom wall of the bucket. The outer, earth-contacting, sidewalls of the bucket may also be provided with hemispherical members. The hemispherical members have a hardness at least as great but no more than 95 units of hardness on the Brinell scale greater than the walls to which they are attached. The hemispherical members are preferably placed on the walls in a staggered row arrangement wherein adjacent hemispherical members are at no greater distance from one another than the diameter of the largest of adjacent members.

Abstract: A display device for greeting cards, such as Christmas cards, has a plurality of structurally interrelated sheets of relatively rigid sheet material, such as paperboard or the like, which, when assembled, presents the general form and character of a Christmas tree or other decorative feature. Each of the plurality of sheets defines a number of card support slots at the outer portion thereof which are each adapted to receive a single greeting card so that a number of greeting cards are displayed for visual inspection. The plurality of sheets are formed to define slots that are structurally interrelated when the sheets are assembled thereby defining a three-dimensional structure in the general form a Christmas tree with the outer portion of the three-dimensional form adapted to display the greeting cards.

Abstract: A single trigger firing mechanism insertable as an integral unit into operative association with a double barrel side-by-side or over-under firearm is provided, as well as the method of inserting the unit into place. The single trigger of the unit is pivotally mounted at an anterior portion thereof to the firearm for rotation about a first axis. A connector structure having a pair of distinct sear-supporting surfaces thereon for cooperation with a pair of sears of the firearm is mounted by a mounting plate for pivotal movement with respect to the unit about a second axis generally parallel to the first axis, and for tilting movement with respect to the rest of the unit about a third axis generally perpendicular to the first and second axes. A selector is provided for effecting tilting movement of the connector about the third axis to thereby select which of the sears of the pair of sears of the firearm will be released upon trigger actuation.

Abstract: A spring assembly adapted for long-term installation in a limited space, in a minimum-stress condition. When thrust is desired, the assembly is activated by adjusting the position of some components, resulting in a tendency for it to expand in a predetermined direction.

Abstract: An improved hand gun grip comprising a body of resilient elastomeric material defining an outer gripping surface and an interior conforming to the frame of the hand gun to which it is to be attached, and including a plurality of mating surfaces having matching recesses. Dumb-bell shaped fasteners rest in the matching recesses and include an enlarged surface bearing against the recess to maintain the grip halves in compressed edge engagement. A peripheral ridge cooperates with the fasteners to insure tight edge contact.

Abstract: The invention is concerned with a method of processing seeds or cereal to accelerate natural germination in which a bed of seeds or cereal are steeped in water which is oxygenated by circulation therethrough of a stream of oxygenated air, the temperature of the bed is controlled during steeping by cooling the circulating oxygenated air, the body of water is drained from the bed, oxygenated air is passed through the bed to dry the seeds or cereal, and the temperature of the bed is controlled during the drying step whereby the bed of seeds or cereal is pregerminated.Advantages of the invention are that the seeds or cereal are in a condition ready for immediate germination when required but may be stored for a indefinite period of time. Also when the seeds or cereal are or is planted they can grow immediately since they have the correct moisture uptake, and further the germination and original growth phases are uniformly and actively promoted by the oxygenated reaction.

Abstract: An automatic hydroponic garden includes a single container for water and growing medium immersed in the water. A means is provided in the container for constantly mixing the water and air and circulating the mixture within the container. An enclosure surrounds the mixing means, into which plant nutrient may be added to the water and which disperses the air-water mixture in the container. A means for supplying air is connected to the mixing means. The result is an improved hydroponic gardening method in which plant roots are immersed in the water, which is both constantly aerated and circulated in a manner that does not agitate the plant roots.

Abstract: An improved container for plants or the like comprising a pot and a tray releasably securable to the bottom of the pot.The pot and tray are provided with snap lock means for connecting the pot and tray which snap lock means includes a plurality of upwardly extending tapered protuberances having undercut portions and extending upwardly from the tray, which protuberances are receivable in corresponding apertures in the bottom portion of the pot, and which snap lock means further includes a plurality of wedge-locking elements carried by the pot and tray which are positioned adjacent the protuberances and apertures.

Abstract: An overhead center pin drive gear for gear-shaped work carriers for two-lap lapping or finishing machines which will rotate the pin-driven gear-shaped work carriers about their respective axes independently of the rotation of the lapping plates.

Abstract: The invention relates to a device for cooling a rotating grinding wheel and a work piece contacting the grinding wheel in a grinding machine. The device comprises a flushing mouthpiece (6) with two openings (13, 14) facing each other for supplying a cooling agent to the grinding spot. The openings are situated on a line parallel to the axis of the grinding wheel above the grinding spot, and cooling agent can be supplied in such great amounts that a homogeneous mass (7 ) of cooling agent is established between the openings, which mass contacts the ground surface of the work piece and the envelope surface of the grinding wheel.

Abstract: A high-safety container more particularly intended for dangerous products or installations. A tank includes an inner sidewall, a floor and a top which define a storage enclosure. A continuous leak-proof foundation basement includes a downwardly bulging cupola having a convex undersurface exposed throughout to external upwardly directed hydrostatic-like thrust. The tank floor is disposed above and laterally spaced from the upper concave face of the downwardly bulging cupola to define a lower ventilating gap therebetween. The pillars extend between the tank floor and the upper concave face to support the tank over the cupola. An outer wall integral with the cupola forms an upwardly projecting peripheral extension of the cupola. An annular space is defined between the outer wall and the inner side wall around the tank. A filler material disposed in the annular space contributes to the stability of the container with respect to lifting effects caused by hydrostatic thrust, even when the container is empty.

Abstract: A portal building frame formed of asymmetrical metal sections comprises a roof frame member supported on columns by means of knee connectors which telescopically engage with the roof frame member at each end thereof and with the columns. The connectors are secured to the roof frame member and the columns by bolts through both the webs of the metal sections and through flanges thereof, the bolts through the webs being longitudinally spaced by a distance corresponding to the lateral dimension of the webs. The knee connectors are each fabricated with reinforcing plates on the flanges of the metal sections at the joint between the sections forming the connector, and a stiffening plate is welded between mitred ends of the sections to the webs, flanges and reinforcing plates to form the one-piece connector.

Abstract: A ground anchor stake device characterized by a novel combination of ground-penetrating angular spike means and ground-penetrating arcuate tine means. The spike means and the tine means are movably interconnected in such manner that the spike means may be first pushed into the ground at an acute angle to the ground surface, and the arcuate tine means then pushed into the ground in a circular arcuate path to the ground surface. The ends of the spike means and the ends of the tine means, being inserted into the ground from opposite direction toward each other, encompass a mass of ground between them to securely anchor the stake device in the ground. Removal of the device from the ground is by first lifting the arcuate tine means from the ground and then lifting the angular spike means from the ground.

Abstract: Resilient support means are provided in the trough of the concrete foundation to receive the fabricated spherical shell. The resilient support means can be constructed so as to deform increasingly and permanently in response to an increasing load of the shell thereon or may be constructed so as to receive a pressurized medium. By determining variations in pressures at the various support means, changes can be affected so as to insure a uniform disposition of the shell on the concrete layer which is back filled into the gap between the shell and foundation.

Abstract: The outer metallic stairway, particularly made of aluminium, for multistage buildings or buildings of a rather important height, to be used for allowing the occupants of a multistage building to evacuate this one is essentially fixed and supported by means of four uprights forming a column of support that are mounted vertically in a square or rectangular arrangement, the flights of stairs being fixed to at least two of the sides of the support column, the uprights being connected to one another at different levels and at least on the level of the landings by means of four horizontal tie-bars, one of which on a level with a story landing being extended beyond a second upright for supporting said landing on a whole side or to be fixed to an existing landing and to support the flight of stairs fixed to it that descends from said landing, and two of the four tie-bars that are provided on the level of an intermediate landing being extended beyond one of the uprights in order to form a part of the supporting frame

Abstract: Corner strips are provided for positioning between perpendicularly-disposed wallboard sheets to effect a curvilinear transition between the sheets. In one embodiment, a longitudinally-extending and transversely concave or inwardly curved rigid member is adapted for positioning between the sheets with the sheets perpendicularly-disposed in mutually-abutting relation. The concave member is held in the corner by an arrow-like member engaging putty-like material placed in the corner. In another embodiment, a longitudinally-extending and transversely convex or outwardly-curved rigid member is adapted for positioning between the sheets with the sheets perpendicularly-disposed in spaced-apart relation. The convex member is held to the sheets by a pair of open channels engaging the edges of the sheets. In both embodiments, wallboard tape, bonded to the concave and convex members, overlaps the wallboard sheets and effects a smooth transition between the sheets and the corner strip members.

Abstract: A composite wall structure is disclosed and includes a plurality of vertically stacked building blocks forming a wall structure without mortar or other binder between contiguous blocks. Distinct, continuous layers of rigid urethane polymer foam cover both exterior sides of the wall, these foam layers being adhesively secured to the sides of the wall and extending into the surface pores of the blocks and into the vertical and horizontal seams formed by the blocks. The resultant composite wall structure can be characterized as being hermetically sealed, monolithic, insulated and having improved lateral strength imparted thereto by the exterior foam layers.

Abstract: A roof covering material comprising a sheet material juxtaposed to a spacing means, said spacing means being in the form of a mat of resilient non-woven wires, threads, or fibers, said mat having a high air volume.