Abstract: A wheel cover comprises a central portion and a peripheral portion mutually rotatable. The peripheral portion has a passage for a tire inflating valve; the central portion has seats for the wheel fastening bolts, which seats are so constructed as to allow the seat depth to be adapted to any distance between a plane of abutment of the wheel cover and a bolt fastening plane.

Abstract: A heating device for pre-heating liquid fuel, especially diesel fuel and for heating devices of a low heating performance which are independent from a motor having a heating performance which is suitable for mounting into vehicles, which are driven by the liquid fuel. The pre-heating is effected by a transmission of heat of the exhaust gas to the fuel of the heating device, the fuel being lead through a continuous tubular wrapping in one layer or through a hollow cylinder formed or positioned around the exhaust pipe. This wrapping or hollow cylinder is part of the fuel main from the fuel tank to the fuel supply pump of the heating device. A pre-heating of the content of the tank is effected by the return of the pre-heated, but not burnt fuel through a fuel return main back into the tank. A heat transmitting jacket is advantageously disposed between the wrapping, or a hollow cylinder and the exhaust gas pipe.

Abstract: The articles are formed on individual arcs of needles (13, 15) facing each other on the two bars of the cylinder (11) and of the plate (10), the articles having rows formed partly by the needles of one bar and partly by the needles of the other bar, and having two successive yarn feeds (344, 345); means for guiding and switching (458, 459) the position of the two yarns supply them to the needles at two angles and exchange their positions at each reversal of the entrainment thereof by the selective entraining means comprising pairs of hooks (342, 343; 349, 350) carried by two counter-rotating apparatuses (26; 32).

Abstract: A method and device for measuring screw threads on tubes connecting sleeves or the like, by means of a measuring pin which is moved to measured surfaces in two mutually independent measuring directions offset by 90.degree. from each other. The two measuring directions are associated with a force direction effective as a resultant. The measuring pin further has an advance deflection in each of the two measuring directions which are annulled at the point contact of the measuring pin with the measured surfaces.

Abstract: An embroidering machine with a mounting device for individual embroidery hoops is provided with a design in which each individual embroidery hoop is always mounted with the same holding force and is always brought into the correct position for the start of the embroidery process. To ensure the three-point mounting of the individual embroidery hoop, which consists of an inner hoop and an outer hoop surrounding it, with the fabric to be embroidered located between them, the mounting device comprises two opposite holders, one of which has two contact surfaces enclosing an angle for fitted support surfaces of the outer hoop, and the other holder having a bow spring with a depression for a projection arranged on the outer hoop on the bisector of the angle enclosed between the contact surfaces.

Abstract: A heating system, in particular for motor vehicles, which utilizes waste heat of an internal combustion engine and has a heater that can be operated with liquid fuel for generating heat independently of the operation of the internal combustion engine or in addition to the waste heat of the engine, wherein the heater is associated with an oil storage space of the internal combustion engine. The heater is arranged with its direction of principal extension essentially in parallel to the axis of the crankshaft and eccentrically, mainly in the oil pan of the internal combustion engine.

Abstract: A composite reinforcement element comprising three superimposed and crossed even layers of threads and a continuous thread extending perpendicularly through the three superimposed even layers. The layers are impregnated with a binder and the binder is polymerized after impregnation. The superimposed and crossed even layers are initially maintained assembled, before the impregnation and the polymerization of the binder, by a conjugate action of gripping and friction of the three superposed and crossed even layers of threads on the continuous thread which extends therethrough. The continuous thread forms an internal surface of the composite reinforcement element which protrudes from the superimposed and crossed even layers of threads in the form of open loops which are interconnected on an external surface of the element.

Abstract: The control circuit of a catch thread device has a counter for the main shaft of the swing machine. The counter counts the number of revolutions of the main shaft 26 during the reception of one of at least two signal intensities and is reset to its initial value when this signal intensity changes to the other signal intensity. When a predetermined maximum number of revolutions is reached, the counter emits a signal indicating a thread fault.

Abstract: A pre-press tube is composed of several lengths of tube with a plug-in end at one end and a plug-in socket at the other opposite end. Plug-in end and plug-in socket are chosen to be conical in such a way, that when the plug-in end is pressed into the plug-in socket, not only a form - and force locking arrangement is obtained, but even a tight connection of the material by means of a lattice like polymerization of the contact surfaces is obtained. As a result a tight, solid connection of tubes with a smooth surface is achieved.

Abstract: A connection for extensions for vehicle tire inflating valves comprises a body consisting of two portions, one of which is to be joined with the extension and the second is to be connected to the valve and ends in an appendage for actuating the valve moving element. The second portion of the body comprises a cylindrical element with a smooth side surface having, near the appendage, a radially operating sealing ring.

Abstract: Steam producing machine with a delivery nozzle, especially for heating beverages and rising foam therein characterized in that it includes a water boiler with relevant sealing lid, to the bottom of which boiler a heating electrical resistance is combined and which is provided at its top with an outlet for the steam intercepted by a manually operated valve to which a delivery nozzle is fixed, which is made up of a first tubular element which, in the outlet part, has a second tubular element coaxially mounted therein having its ends communicating with the atmosphere.

Abstract: In order to create a metering and spray pump of high functional reliability, consisting of as few individual parts as possible and able to be produced with as low production costs, in particular assembly costs, as possible, in which the pumping member consists of an elastically-flexible bellows (4), which is arranged connectively between mutually movable, dimensionally stable housing parts (1,2), the bellows (4) has at its one end, as axial extension, a radially flexible, sleeve-like annular wall section (30), which encloses in sealing manner like a valve the circumferential surface (31) of a socket (24), in the form of a ring or pot, integrally molded onto the housing part (1) executing the pumping strokes.

Abstract: The composition comprises highly nutritious powder of gourd fruit which is available as solid nutritious food or nutritious beverages. The gourd powder composition contains the powder of gourd fruit, creaming syrup and/or L-ascorbic acid. The other nutritious ingredient can be added if necessary. When supplied as beverages, the foaming agents can be added thereto. The L-ascorbic acid is used mainly for the purpose of removing the grassy-smelling peculiar to the gourd. The creaming syrup is used to have the powder of gourd fruit deflocculated in the liquid. If the foaming agents are added thereto, the powder of gourd fruit is more easily deflocculated in the liquid and the cooling beverage like cream soda can be made.

Abstract: A miniature motor with a frequency generator comprising a motor portion having a stator with a permanent magnet for forming a magnetic field and a rotor with rotor windings wound on a rotor core; electric current being fed to the rotor windings via a commutator making sliding contact with brushes, and a frequency generator for detecting the revolution of the motor, in which the frequency generator comprises a frequency generator rotor, mounted on the motor rotor, having a disc-like rotor portion made of a soft magnetic material and equipped with a plurality of magnetic-pole teeth on the outer periphery thereof, an internal-gear core of an annular disc shape, made of a soft magnetic material, disposed in such a manner as to come in contact with the inside of a motor housing and face the outer circumferential surface of the rotor portion and equipped with a plurality of magnetic-pole teeth on the inner periphery thereof, a permanent magnet forming a magnetic field between the magnetic-pole teeth of the rotor po

Abstract: A traveling continuous conveyor for bulk materials for unloading ships and removing heaps of bulk material. A steep conveyor is provided including a carrying belt (3) and a cover belt (4) which are integrated in the conveyor device. The bulk material is cast by two casting drums (8a and 8b) into the lower gap between the carrying belt (3) and the cover belt (4), in any position of the support frame relative to a surface of the bulk material. Computer-controlled linear drives (6, 15, 17, 20, and 22) are provided, with which the position of the casting drums 8a and 8b) relative to each other and to the layer of bulk material to be removed, e.g., height adjustment to the inclination plane of the bulk material, is facilitated.

Abstract: One or more powders are placed in a leaktight vessel (12) having a substantially vertical axis and comprising a bottom blade rotating about an axis parallel to the axis of said vessel, and a spheronizing tool (28) having a substantially discoidal rotating form; said powders are mutually mixed by means of the rotation of said bottom blade, and a binder solution is added thereto. The composition of mixed powders thus added to is spheronized by immersing said spheronizing tool (28) in said composition and causing it to rotate simultaneously with said blade (18).

Abstract: A test-tube for clinical chemistry analysis made up of a plurality of cells, each one of the cells comprising a lower portion for the collection of the reagent and a side intermediate portion provided with an edge for the storage of the sample to be tested upon the mixing thereof with the reagent. The cells are disposed in a straight configuration. The operations of the mixing of the samples with the reagents and the simultaneous stirring inside all cells, may be carried out by imparting the test-tube with an angular motion about a longitudinal axis.