Abstract: A water foil is attached to a swimming pool brush or vacuum cleaning head. The foil has a check valve structure (one-way valve) incorporated therein so that the foil urges a cleaning device against a swimming pool surface when pushed down through the water while presenting a minimum surface area during an upward stroke, thereby increasing the efficiency of a pool cleaning operation.

Abstract: A wiper arm assembly and system utilizing same is disclosed wherein a wiper arm of the assembly is alternately coupled to a wiper arm driver in first and second angular positions angularly spaced about a pivot axis to permit movement of the assembly to a park position and automatic movement between first and second limit positions of a glass wipe pattern. A manually operable coupling mechanism permits the movement and automatically locks the wiper arm to the wiper arm driver in the first angular position during movement towards the first limit position immediately after movement from the park position towards the second limit position. The coupling mechanism includes a locking member and a cam having first and second communicating grooves in which the locking member is alternately positioned. The cam is mounted on the wiper arm driver to rotate about the pivot axis.

Abstract: A large baling press for forming round bales has a pressing chamber which peripherally is limited by winding elements driven via cranks connected by connecting members, and mass compensating elements are connected with driving elements for the connecting members and cranks.

Abstract: A process for manufacturing a brush having an integral bristle retention feature. One end of each bristle tuft to be inserted into a molded brush body is fused into a ball-shaped mass. The body is molded around the mass, thereby anchoring the tufts in the body.

Abstract: A control device in particular in a multi-roll press (22 to 24) of a calender intended for the glazing of a continuous thin web, such as a paper web, which said press comprises a compensated upper roll (22), a compensated lower roll (24), and at least one press roll (23) fitted between the rolls. The control device itself comprises a press-load control circuit (B, C, D, 11, 14, 15; A, 29, 30), a compensation circuit (E, 16, 17) for the upper roll (22), as well as a compensation circuit (F, 27, 28) for the lower roll (24). According to the invention, both of the compensated circuits (E, 16, 17 and F, 27, 28) are, via their own feedbacks (12 and 13), connected to the control circuit (B), which is fitted so as to select the most slowly changing one from among the signals of the feedbacks (12 and 13) and to brake down the roll (22 or 24) whose compensation is being varied most rapidly.

Abstract: Tufts of bristles (3) in a brush are resiliently retractable by thrusting against a membrane (5) which is capable of resilient spot deformation, with each tuft being retractable independently from the other tufts of the brush. Tufts are retracted into the brush in order to continuously match the envelope surface (18) defined by the free ends (15) of said tufts (3) to the shape of the surface to be brushed (17), and said matching takes place without substantial difference in the force applied to the various zones of said surface by the various tufts of bristles.

Abstract: A method and apparatus for more effectively squeezing moisture from wood chips and/or other "green" biomass materials. A press comprising a generally closed chamber having a laterally movable base at the lower end thereof, and a piston or ram conforming in shape to the cross-section of the chamber is adapted to periodically receive a charge of biomass material to be dehydrated. The ram is forced against the biomass material with suffcient force to compress the biomass and to crush the matrix in which moisture is contained within the material with the face of the ram being configured to cause a preferential flow of moisture from the center of the mass outwardly to the grooved walls of the chamber. Thus, the moisture is effectively squeezed from the biomass and flows through the grooves formed in the walls of the chamber to a collecting receptacle and is not drawn back into the mass by capillary action when the force is removed from the ram.

Abstract: A windshield wiper having at least a single telescope arm, variable in its effective length during the wiper movement. A drive arrangement completely relieves a guide of an extendable part of the wiper arm of laterally directed forces, so that a simple and light embodiment of the drive arrangement and wiper arm is made possible.

Abstract: A windscreen wiper comprises two wiper blades and a bridge structure for coupling the wiper blades, which bridge structure is a light weight profiled structure and comprises two longitudinal bars which run parallel to and in the longitudinal direction of the wiper blades and are designed uncurved with respect to the wiper blades and connected to each other by cross connecting webs.

Abstract: A toothbrush with a liquid-storing sponge structure formed with a thickness diminishing to a pointed head which projects outwardly longitudinally from the bristle head. The sponge structure is in contacting engagement with the bristles whereby the stored liquid may be introduced into and along the rows of bristles. The sponge structure carries more liquid than the bristles alone and thereby generates a cleansing foam to the teeth.

Abstract: Cylindrical brush and method of making thereof. The brush comprises an inner layer formed from a first strip of fabric helically wound to form a hollow cylinder, an outer layer formed from a second strip of fabric helically wound over said first strip, a third layer of adhesive interposed between said first and second layers. The curve of the helix formed by the second fabric strip intersects the curve of the helix formed by said first fabric strip. The peripheral surface of the second fabric strip also has bristles attached to it.

Abstract: This invention is directed to a surface coatings applicator and applicator cleaning container assembly where in the applicator has a special contoured handle with several openings that aid in the proper cleaning/soaking of the applicator's bristles/filaments when used in conjunction with the special cleaning/soaking container. Furthermore said bristles/filaments may be of differing lengths, color/shade and/or color patterns so as to aid in the proper dipping of said bristles into a container of surface coatings.

Abstract: A windshield wiper unit with a wiper arm of telescopic construction which has a housing driven to and fro round an axis of rotation by a driving motor and a slide movable in relation to the housing, this slide being displaceable by a crank assembly is so designed that the various bearings are subjected to little load and so that compact construction is possible. This is achieved by having the connecting rod belonging to the crank assembly above or below the slide and linked to the slide between the two bearings for it and by having the distance between the two bearings at least as great as the stroke of the slide.

Abstract: The roll assembly of a calender has at least one roll with a deformable shell which surrounds a rigid carrier and whose end portions surround discrete antifriction bearings. The intermediate portion of the shell surrounds one or more rows of hydrostatic supporting elements which can be acted upon by adjustable fluid-operated motors to change the shape of the intermediate portion in a plane including the axes of the one roll and the neighboring roll as well as at right angles to such plane. Stresses which are applied to the bearings for the end portions of the shell are monitored by several sensors which transmit signals to a control system to regulate the deformation of the shell in such a way that the stresses upon the bearings are minimized or reduced to zero. This enables the intermediate portion of the shell to undergo deformation which is best suited for optimum treatment of the material passing through the nip of the one roll and the neighboring roll.

Abstract: The handle of the toothbrush has a bifurcated forward end. The spaced free outer ends of the bifurcations are interconnected by a transversely extending arched head defining opposite lower side walls and an upper middle wall therebetween. Tufts of bristles project inwardly from the inner wall of the head. The tufts project from the opposite side walls at an angle to the horizontal center line of the head and the tufts projecting from the middle wall point toward the center point of the head.

Abstract: A wiper blade rubber of a constant cross section, composed of at least two kinds of rubber ingredient and manufactured by multi-color extrusion molding. In a wiper blade rubber according to this invention, a lip portion thereof to be in sliding contact with the glass surface is formed of a lubricating rubber and a swing portion generally of a trigonal cross section is mostly formed of a flexible rubber. In another wiper blade rubber according to this invention, a central part at the bottom end of the lip portion is formed of a high frictional rubber and both side parts of the bottom end of the lip portion is formed of a lubricating rubber. In a further wiper blade rubber according to this invention, an engaging part of the base portion, in the form of grooves or ridges, for engagement with an elongate rigid body held by a yoke of a wiper, is formed of a lubricating rubber and the swing portion is mostly formed of a flexible rubber.

Abstract: In a belt press of the type used to dewater heavy slurries, an improved belt drive system is provided. The upper belt is driven by at least two rollers, one of which is situated in the dewatering section wherein the upper and lower belts are squeezed and traveling together. The improved drive arrangement provides a more uniformly increasing tension in the belt as it passes through the dewatering section than in such presses heretofore. Further because the lower belt is at least partially driven by its frictional engagement with the upper belt, through the sandwiched slurry, the synchronization of the belt speeds is improved. Further improved control of the belt press performance is provided by means for sensing the speeds of the belts and responsive means for regulating the belt tensioning systems accordingly.

Abstract: In accordance with the invention, the armature (17) of the windscreen wiper blade is caused to rotate in an alternating manner by a blade support arm (1) by means of a rocker arm (6) articulated on the arm (1) and on a rocker arm control member (16) which is displaced with respect to the arm (1). The armature (17) is connected to the rocker arm (6) by means of an adapter (24) which is mounted in a detachable manner on the armature (17) by resilient locking and on which the rocker arm (6) is pivotably mounted about an axis of rotation (11) disposed below the armature (17) with respect to the pivoting axis (7) of the rocker arm (6) on the arm (1). To be used to equip automobile vehicles.

Abstract: A windscreen wiper device, in particular for a single blade or double blade assembly, comprises for at least one of the blades, firstly a main wiper arm articulated at one end on a hinge pin, this main wiper arm being provided at its other end with a rocker and, secondly, an auxiliary arm articulated at one end on a portion of the rocker and at its other end, on a clevis pin substantially parallel to the hinge pin of the main wiper arm. The clevis pin of the auxiliary arm is displaced in relation to the geometrical axis of rotation of its clevis joint, along a central longitudinal direction of this arm by a distance sufficient to allow the assembly of the main wiper arm and of the auxiliary arm to be raised in the normal way by removing it from the surface to be wiped by rotation around the said clevis and hinge pin.

Abstract: A dental brushing aid is described comprising (a) a handle means, (b) a terminal end portion carried by the handle means, and (c) an enlarged portion disposed between the gripping portion of the handle and the terminal end portion to prevent the end of the brushing and from blocking the air passage of a user of the aid. The end portion of the brushing aid includes brush means comprising bristles radiating outwardly from all sides.