Abstract: A composite non-woven fabric has two outer non-woven layers with structured surfaces that are efficient at wiping solid or semi-solid matter, with a center non-woven layer that is substantially impermeable to the passage of solid or semi-solid matter. The fabric of the invention thus provides efficient wiping ability for solid and semi-solid matter in combination with a sanitary quality that prevents passage of such matter through the fabric. The fabric of the invention may find particular utility as a wipe. A method of making a composite non-woven fabric includes the general steps of forming a first and second hydroentangled non-woven webs with structured surfaces, and laminating the first and second webs to a central non-woven web that is substantially impermeable to passage of solid and semi-solid matter.

Abstract: The steam cleaning device contains a steam cleaning head with several steam pressure chambers connected to a steam generator, as well as suction regions connected to a vacuum source. The suction regions are constantly supplied with fresh air from a fresh air chamber connected to the outer surroundings of the cleaning head, in order to improve transport of the steam/water/dirt/air mixture to a backward vacuum lock in the steam cleaning head. Suction slits around the periphery of the steam cleaning head ensure completely stripe-free cleaning of, for example, window surfaces. The steam cleaning head can be part of an automatic cleaning machine used for cleaning windows and skyscraper facades.

Abstract: A bearing block has a head, a central hub, bearing means facilitating rotation of the sheave about the central hub. The block further has locking means for removably locking a length of high strength, fibrous material, such as cord, to the block for tethering the block to a boat deck or the like. The locking means may be a part of the block head, cheeks, or may be located at the block central hub. Preferred locking means are a plurality of passages for the cord ends to pass through, with set screws in two of the passages for removably holding the cord ends therein. A center portion of the cord length thus forms a loop for tethering the block.

Abstract: A triangular sail is made by laminating three triangular layers of reinforced film together on a mold to provide a one piece molded sail. Each layer is made up of a plurality of triangular pieces which radiate out of one of the three corners of the sail, such that the pieces in each layer cross in the body of the sail.

Abstract: The receptacle consists of a stiff outer receptacle and an easily deformable inner bag resting on said outer receptacle, and is produced in a coextrusion-type blow molding process. The outer receptacle contains at least one pressure compensating opening through which air enters between the outer receptacle and the inner bag whenever receptacle contents is discharged, for instance, by means of a pump. The at least one pressure compensating opening is formed by the measure that a curved wall section of the outer receptacle is cut away by means of a rotating tubular knife or a hollow knife in such a manner that a hole is formed in the outer wall. During the cutting operation, which is carried out at a flat angle, the inner bag is not damaged, but pressed away inwardly.

Abstract: An automatic pane cleaning system includes a cleaning head containing at least one cleaning chamber, at least one suction chamber and at least one air supply chamber. Clean water, optionally mixed with cleaning additives, is supplied to the cleaning chamber to clean panes by means of ultrasound, rotating brushes or steam. Water is supplied through a closed air and water circuit which is connected to said chambers and by which the water loss is minimized during the supply of water.

Abstract: A method is disclosed for improving the properties of polymer fibers incorporated into upcured concrete. A wetting agent is incorporated into the molten polymer prior to extrusion into fibers in order to render the fibers durably wettable.

Abstract: A traveler comprises a track with two lateral side grooves and a top surface, and a car slideably held on the track. The car has first and second lateral side portions, with bearing means in each portion for engaging respective of the track side grooves. The car further has thrust bearings removably held in a race in a car center portion for engaging the track top surface when the car may be tilted towards one or the other lateral sides, as may occur when the car is under a load from that lateral side.

Abstract: A method and apparatus are disclosed for making a high bulk, coated paper of a unique structure with the coating forming a lower portion of the total caliper and the paper base forming a higher portion of the total caliper than conventionally made coated paper of the same weight. The process includes the step of using furnish with a high percentage of mechanical pulp, applying that furnish to papermachine wires, preferably with a gap former, coating the paper with a coating containing a plastic pigment, preferably of 4 or more parts per 100 parts of coating pigment, and calendering the coated paper at a nip loading less than conventional supercalendering nip loading. Preferably, the finished coated paper will have a 75° TAPPI gloss of 40 or above. The method and apparatus can be used to make lightweight or other weights of coated paper.

Abstract: A flexible bearing retaining cage has a flexible spine with bearing retaining means for rotatably retaining bearings. A flexible bearing cage assembly comprises a flexible bearing retaining cage with bearings rotatably retained. The flexible cage of the invention may be configured in a variety of shapes including, but not limited to, linear, oval, eliptical, and circular. The cage of the invention may also be cut to a desired length to fit a particular race.

Abstract: The receptacle is produced in a coextrusion-type blow molding process and consists of a stiff outer receptacle and an easily deformable inner bag which are made from respectively different thermoplastic materials that do not form a welded joint with one another. The bottom of the receptacle includes a welded seam in the area of which the welded seam of the inner bag is clamped. Pressure compensating openings are formed in the outer receptacle by the measures that a notch is cut in, except for a small residual wall thickness, and that the residual wall section is torn open by applying a force.

Abstract: A tethering device for anchoring a tether has a cup rotatably held within a cylinder, with the cylinder mounted approximately flush in a flat surface, such as a boat deck. A loop of fibrous material, such a strap, has a first end removably anchored in the cup by passing around an anchoring pin. A second fibrous loop end is exposed above the deck surface for tethering a block, fitting, or the like. The tethering device provides for a low profile tether anchor, for rotation of the loop, and is water tight to prevent water flow through the device.

Abstract: A wettable fiber or filament comprises a melt additive to a thermoplastic polyolefin such as polypropylene. The melt additive is a polyethylene oleiyl ether having the formula: R—O—{—CH2—CH2—O}x—CH2—CH2—O—H where x is an integer from 1-15, and R═CH3—(CH2)7—CH═CH—(CH)8— When the foregoing ether is added to a melt of polypropylene at levels of 2-15% by weight prior to the extrusion of the fibers or filaments, and the fibers or filaments are formed into fabrics, the fibers, filaments, or fabrics will exhibit permanent wettability, as well as excellent drape and softness. Such fabrics are useful, for example, as the skin contacting inner lining fabric of sanitary articles such as diapers, feminine hygiene products and the like.

Abstract: A resilient clip on pedestal wear plate comprises a base with two opposing side lips for resiliently holding the base on a railway car side frame. When installed, the wear plate serves to prevent wear on the load bearing surface of the pedestal. The side lips of the wear plate comprise a center portion with spring arms extending therefrom to resiliently attach the plate to the side frame. Because the spring arms do not depend on bending of the base for their resiliency, the wear plate of the invention provides improved service stress capabilities.

Abstract: In the production of a nonwoven fabric of thermally bonded fibers, a heavy web of fibers is continuously fed to a toothed cylinder at a slow speed to form a layer of fibers, and a portion of this layer is removed and formed into a lightweight uniform web at a faster speed. The second web is conveyed without draw to a calender having a bonding nip, and the fibers of the web are rearranged by compression and heating and are supported on a hot surface of one of the calender rolls prior to entering the nip to additionally improve uniformity.

Abstract: A breathable film is composed of a uniform blend of two thermoplastic resins, one having a high moisture vapor transmission rate and the other having a low rate. The blend is melt extruded into a film having good handling characteristics and a controlled degree of moisture vapor transmission, as determined by blend ratio per unit of film thickness.

Abstract: A locking mechanism of the barb type is provided for releasably locking two elements together. One of the elements has two pairs of opposed barbs or hook type resilient members. The barbs or hooks of each pair facing each other and being spaced apart. The other element has a pair of opposed, spaced ledges with downwardly facing surfaces engageable, in a locking relationship, with the barbs. An appropriate size opening is provided in the first element above the opposed pairs of barbs. The opening is a round central portion and a pair of side lobes coextensive with the opposed pairs of barbs. A separate key having a central rotational axis is provided. The key has a handle, an intermediate round portion connected to a working end portion, and generally oval in shape or cross section. The key is insertable in the opening such that the narrow part of the oval portion rests between the pairs of opposed barbs.

Abstract: A sampling apparatus is characterized by a sampler coupled to a product-containing vessel by an adapter. The sampler has a bore received in the adapter and leading to an opening in the vessel. A plunger in the bore has an annular recess intermediate its ends. The plunger is reciprocated forward in the bore to project the recess through a forward outlet from the bore and through the vessel opening into the vessel to receive a sample of liquid therein. The plunger is then reciprocated rearward to retract the recess from the vessel and into the bore to a sample delivery point. When the plunger is in the sample delivery position, a relatively long portion of the sampler bore exists between the front of the plunger and the forward bore outlet. The sampler has two motors. A first one of the motors reciprocates the plunger during sampling cycles between its sample receiving and sample delivering positions.

Abstract: A traveler comprises a car slideably held on a track, and is useful for applications including trimming a sailboat mast or sail. The car has two side portions each with a race with an open portion. Ball bearings are contained in each race that are rotatably engaged between the race open portions and the grooves on the sidewalls of the track. The car further has retaining means for holding the ball bearings in place along the open portion of the race when the car is removed from the track. The retaining means are movably received by the track groove, and otherwise allow for free rotational engagement of the groove by the bearings.