Abstract: An apparatus for applying adhesive to fibrous material in which a generally horizontal cylindrical member is provided having an inlet in the top near one end and an outlet in the bottom near the other end. A shaft is rotatable on the axis of the cylindrical member and has radially extending tools thereon angularly spaced from one another and disposed in a substantially helical path along the shaft. The tools nearest the inlet have a passage means therein through which adhesive is supplied to fibrous material introduced into the inlet while the others of the tools admix the adhesive with the fibrous material.

Abstract: An ornamental molding or grill for a motor vehicle body, especially for the front section of the driver's cab of a truck, which grill is provided with a ribbed surface having air passages therethrough and extending at least over the major portion of the width of the vehicle body. The air passages are provided in substantially horizontally extending flanks of the ribs, and the space between the ribs serves as channel for the impacting air.

Abstract: Pneumatic vehicle tires having a carcass with a tread strip centrally arranged thereon. The carcass freely spans the wheel rim and is only slightly outwardly curved when in a non-depressed condition. At its rim area the carcass is deflected by means of its arc of curvature towards the tire beads which are reinforced with pull-resistant cores. The carcass has a thickness which continuously decreases from its maximum thickness in the region of the tire bead to a fraction thereof at the edges of the tread strip. The carcass is provided with two fabric plies which are looped around the cores. Decreasing in distance between each other, the two plies extend beneath the tread strips. In the arc of curvature the two plies surround an elastic, deformable, incompressible intermediate layer which has an approximately wedge-shaped cross section.

Abstract: A tensioning device for a tire chain, which comprises a first link member adapted to receive a chain link, a second link member adapted to receive another chain link, and an intermediate member, e.g. in the form of a tubular member, which is connected to the first link member and is interposed between the first link member and the second link member. The second link member is movable relative to the intermediate member. A shaft member which is associated with the intermediate member is fixedly connected to the second link member while being movable relative to the first link member. Preloaded springs are associated with the intermediate member and continuously act upon the connecting member so as to urge the second link member in the direction toward the first link member.

Abstract: In a coffee making apparatus, a throughflow heater for heating water to be passed to a filter, said heater being included in a water throughflow passage extending from a water reservoir to an outlet pipe extending over said filter, is made, at least in part, of transparent material to enable the user to see whether the heater is fouled with scale deposits so that cleaning is necessary. Safety is enhanced by making the heater of transparent heat resistant glass and using one or more heating elements of the submersible type therein.

Abstract: A clutch arrangement for a motor driven chain saw having a first clutch element driven by the motor shaft and a second clutch element normally engaged with the first clutch element but disengageable therefrom and a centrifugal clutch between the second clutch element and the drive sprocket for the saw chain. The second clutch element includes a spring disc and is axially yieldable between clutch engaged and clutch disengaged positions. A lever is provided moveable for disengaging the clutch elements and a brake member connected to the lever is operable for braking the drive sprocket when the clutch elements are disengaged.

Abstract: A vehicle, especially a wheeled vehicle, for transporting and placing bridge parts of a portable bridge. The vehicle has a frame, on the forward end of which is mounted a cab. Behind the cab is mounted a support unit for use in placing the bridge parts. The support unit is pivotal about vertical axes and, during the placement process, is spaced from and in front of the cab and is located, in part, on the ground.

Abstract: An electrodynamic sound converter which comprises a magnet adapted to generate a magnetic field and direct same onto the surface of the workpiece to be checked by the electrodynamic sound converter, and which also includes an excitation coil located between the magnet and the workpiece to be checked for generating electromagnetic oscillations. That end of the magnet core of the magnet which faces the workpiece to be checked is so designed that the magnet core decreases in cross section toward its foremost point which is closest to the surface of the workpiece to be checked, the rate of increase increasing in the direction toward the foremost point of the magnet core.

Abstract: A device for safeguarding screw connections and other rotatable and/or longitudinally movable parts against accidental loosening. The device includes a conical dish or plate spring which by means of the free end face of its inner and/or outer marginal zone rests against a counterthread on the carrier of the part to be safeguarded. The dish spring has a plurality of radially extending tongues, the ends of which, while not forming a thread, are merely so rounded that said tongues during the screwing-in operation will adapt themselves elastically to the thread of the carrier of the part to be safeguarded, and during the flattening of the spring will interwedge in the thread while causing no permanent deformations of the carrier thread.

Abstract: A control for the hydraulic power lift of a tractor, particularly one used in agriculture. The control includes a pre-control slide valve which is adjustable not only by the pick-up or indicator of the working resistance or the position of a working implement but also by a rated or desired value pick-up, by way of a control linkage, to the control positions "lift", "neutral", and "lower". A first spring which urges the pre-control slide valve toward the lifting position, engages the control linkage to transmit the values of the working resistance. The force of this spring is greater than the force of the spring which continuously urges the pre-control slide valve towards the lowering position. The pick-up or indicator for the working resistance of the working implement is linked to the control linkage, against the force of the first spring, by way of a rod having a slotted hole.

Abstract: A method of making a socket structure for a ball point refill, which comprises a ball made of corundum and arranged inside an outer supporting shell provided in its interior with a compound bearing consisting of a backing shell having a hardness exceeding 800 kg/sq. mm Vickers and an inner lining facing the ball and having a hardness of less than 200 kg/sq. mm Vickers.

Abstract: An axial shaft sealing unit for sealing a stationary machine part relative to a rotatable machine part. The sealing unit includes a slide ring seal mounted on the stationary machine part in a sealing manner and includes a housing with a bottom located transversely to the axis of the slide ring seal, a primary seal forming a sliding ring, a bellows-like secondary seal, and a compression spring arranged between the primary seal and the housing bottom or base. The bellows-like secondary seal is vulcanized in a position which corresponds substantially to its installed position and is held in this position in its operative state by a detachable holder. A counter ring rests directly against a machine component which is non-rotatably connected to the rotatable machine part.

Abstract: A device using oil for heating the operator's cab of a machine driven by an air-cooled internal combustion engine, especially the operator's cab of a vehicle. The lubricating oil of the internal combustion engine is recooled in an oil cooler and is entirely or partially branched off from the oil cooler and is fed through valves, regulating and control devices to a heat exchanger in the operator's cab. The device includes a manually adjustable rotary valve for opening and closing the heating system together with two oil pressure dependent bypass valves in the heating circuit and with a bypass valve for a lubricating oil filter from a compact valve block. The valve block together with a support for the lubricating oil filter is designed as a one-piece housing and is flanged to the machine housing. Connecting bores for the supply and return conduits to the heating system in the operator's cab are arranged in the one-piece housing.

Abstract: A method of and device for checking hygrometers and hygrostats, according to which the hygrometer or hygrostat is at its place of mounting checked by means of a reference device, such as a reference hygrometer directly indicating the air humidity. The reference hygrometer is first by means of a corresponding saturated solution calibrated to a standard climate corresponding to the operational climate (Betriebsklima) with regard to the relative humidity, and subsequently at the place of mounting of the device to be checked. The reference hygrometer is together with the hygrometer to be checked exposed to the same conditions. After the reference device has been adapted to the operational conditions (Betriebsbedingungen), the device to be checked is equalized with the reference device.

Abstract: A skid protecting device for use in combination with vehicle tires, according to which in distribution over the tire circumference there are provided holders with a plurality of gripping profiles which are arranged transverse to and in covering engagement with gripping profiles which are adapted by way of tensioning members to be connected to the outsides of the holder. The arrangement comprises at least one chain net of interengaging chain links which is located on one lateral surface of the tire. This at least one chain net has one rim portion provided with serially arranged connecting links arranged in spaced relationship to each other for connection to the holders, whereas an oppositely located other rim portion is provided with a tensioning or tightening strand extending along the last mentioned other rim portion.

Abstract: A control valve for fluid media which includes a housing with a bore having a widened section intermediate its ends into and from which inlet and outlet passages lead for the respective fluid medium to be controlled. A resilient diaphragm or diaphragm with a force to continually urge the diaphragm to assume its normal diametrical shape is provided in the widened section and in its normal, i.e., radially non-expanded condition, defines with the inner wall of the widened section a space establishing intercommunication between the inlet and outlet passages. The diaphragm is provided with a bore extending in the direction of and substantially parallel to the housing bore.

Abstract: A device for entering dyes having a consistency, which may vary from a liquid to a pulverous state, into synthetic material processing machines, especially extrusion and injection molding machines, by means of a hose pump adjustable as to the quantity being delivered thereby. The device includes a rotor provided with rollers respectively rotatable about their own axes and about the axis of the rotor in the manner of planetary gears while at least one compressible conveyor hose of elastic material extends in contact with the rollers and between the latter and the interior of a pump housing which interior has a substantially circular cross section. The rollers roll on the hose or hoses while compressing same sectionwise and while the pressure zones circulate about the axis of the rotor. For purposes of adjusting the delivery quantity of the pump per revolution of the rotor, and adjusting device is provided for varying the hose volume respectively remaining between the pressure zones.

Abstract: A method of electrochemically processing metallic surfaces of workpieces ch are arranged so as not to contact the cathode and anode. The processing is done with an electrolyte which, for conducting an electric charge to the surface to be processed, contains electrically conductive bodies suspended in the electrolyte. The electrically conductive bodies, in an electrolysis cell, are charged on the electrode intended for processing the surface and are protected against discharging on the counterelectrode of the electrolysis cell by a diaphragm which shields the counterelectrode. As electrically conductive bodies, particles of activated carbon powder heated at above 700.degree. C in an inert atmosphere are suspended in the electrolyte.

Abstract: A set of structural elements for producing cupboard walls, cabinets, drawers, partitions and similar wall units, which includes pairs of first plate units and second plate units. The plates of each of the plate units can be arranged so that their plate units are in alignment with each other in such a way that one edge of one unit faces the adjacent edge of the other unit of one and the same type of plate units. Connecting members respectively connect the pairs of the first plate units to the pairs of the second plate units.

Abstract: A fragmentation casing for shells, warheads and the like, in which pre-shaped fragmentations or splinters of hard or hardenable material are embedded in a supporting structure which is formed by a material that surrounds the fragmentations on all sides. This material is adapted in response to the ignition of an explosive charge provided in the fragmentation casing to disintegrate into individual particles to thereby release the pre-shaped fragmentations or splinters. The fragmentation casing includes a shell base body which within the region of a sleeve-shaped portion intermediate the rear portion and the head portion of the shell base body is provided with an outer recess which is cylindrical at least over a portion of the shell. Placed in this recess as a single layer are pre-formed fragmentations, primarily heavy metal balls, together with a material which is hardenable by sintering. These fragmentations placed in the recess are pressed into a supporting structure surrounding the fragmentations.