Abstract: An inductively operated apparatus for heating plastic materials in extruders or for other purposes has a heat-transmitting housing with one or more passages for the material or materials to be heated, and an arrangement for heating the housing. The heating arrangement employs a laminated core with two legs which are magnetically coupled to the housing with the interposition of distancing elements of heat insulating material. The core is surrounded by an exciting coil. In order to prevent overheating of the coil, the heating arrangement further comprises at least one barrier which is interposed between the core and the core and is cooled by one or more streams of a gaseous or liquid coolant, such as water. The barrier can be constituted by a flat tube which is convoluted around the core and supports the coil. A second barrier can be placed around the coil so that the latter is received between two barriers.

Abstract: An article of seating furniture (1) is constructed as a free oscillator having side members (6) with substantially Z-shaped resilient supporting sections (7), the supporting sections having a top end portion (9), a bottom end portion (8), and an intermediate portion (10) between them. The end portions (8), (9) of the supporting sections (7) are interconnected via a rod-shaped resiliently deformable reinforcing member (12) inclined oppositely to the intermediate portion (10) of the supporting sections. This construction prevents the chair from oscillating or seesawing excessively.

Abstract: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy.

Abstract: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for a liquid or liquid/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the liquid or liquid/steam-mixture assuming an increased temperature being preferably so circulated under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh liquid to be introduced into the cooling system; for hot P.sub.2 O.sub.

Abstract: Electric machine, such as a transformer, a choke or a constant-voltage regulator, having an iron core assemblable from a plurality of individual, substantially rectangular core parts, including legs and intermediate yoke parts, formed of mutually held-together laminate layers, and clamping means such as clamping straps or plates clampable into engagement with a corresponding clamping surface at outer contours of the leg core parts transversely to the laminate layers by clamping elements such as screws or rivets, includes means defining channel or tunnel-shaped recesses extending parallel to all of the mutually parallel laminate layers of all of the assemblable individual core parts and substantially perpendicularly to juxtaposed joint abutments of the respective individual core parts.

Abstract: Apparatus for starting an internal combustion engine, wherein the engine is started in automatic response to engagement of a clutch between the flywheel and the crankshaft of the engine, has an electric motor which not only can rotate a starter wheel for the flywheel but can also automatically start a pump serving to change the pressure of fluid in the fluid-containing clutch actuating device of the apparatus when such pressure is excessive or too low so that the device cannot engage the clutch. The speed of the flywheel and the quantity of energy stored by the flywheel can be changed in dependency on several parameters including the temperature of oil in the engine.

Abstract: Iron core for an electric machine such as a transformer, a choke, a voltage stabilizer and the like, assemblable of a plurality of individual parallelepipedal core parts formed of laminated layers mutually held together, the core parts having mutually abutting joints formed with smoothly finished surfaces free of any metallic connection between the individual layers, includes clamping means applicable to a clamping surface at outer contours of the core and extending transversely to the laminated layers, clamping elements for clamping the clamping means so as to hold the individual core parts together, the clamping means includes strap-like members for distributing clamping force at least approximately uniformly to the individual laminated layers between the clamping means and the respective clamping surface.

Abstract: Apparatus for starting an internal combustion engine, including a starter wheel for driving the engine, pressure medium activated means for causing the starter wheel to drive the engine, a pump for the pressure medium, and a common motor for driving the pump and starter wheel.

Abstract: An automatic towel dispenser having a housing containing a washing and a drying chamber for an endless towel passable therethrough and having a cleaned section available for use extending outside the housing between a delivery slot and an inlet slot, respectively, formed in the housing, the endless towel being movable from the inlet slot to the washing chamber and from the drying chamber to the delivery slot, the housing also containing a first supply chamber for variably stacking a plurality of soiled towel sections of the endless towel therein and a second supply chamber for variably stacking a plurality of cleaned towel sections of the endless towel therein, the sections of the towel being depositable from above into the respective supply chamber therefor and being withdrawable upwardly from below an overlying loop thereof, includes guide means disposed in an upper region of the second supply chamber, the inlet slot being located in a lower region of the first supply chamber, and the delivery slot being lo

Abstract: The invention relates to an apparatus for the production of phosphoric acid by subjecting yellow phosphorus to combustion inside a combustion tower, the apparatus comprising a cone-shaped shell with a flat bottom of acidproof material forming the combustion tower, the cone ratio of the shell being 1:10 to 1:12. An upwardly-directed off-gas outlet is secured to the lower portion of the shell and a plurality of downwardly directed spray nozzles is arranged so as to open through the middle portion of the shell into the interior of the combustion tower. An acid-receiving cup with an overflow weir is positioned near the upper end of the shell, the acid-receiving cup surrounding the combustion tower concentrically, being gas-tightly connected to, and supporting, a self-supporting cone-shaped tower cover having a passageway passed centrally through it. The overflow weir is formed of a tubular-annular structure disposed completely horizontally inside the acid-receiving cup.

Abstract: Self-cleaning bucket wheel lock comprising several cells or compartments. The apparatus which permits coalescent material to be introduced into a closed apparatus comprises a casing with a material inlet and discharge outlet, and a rotor basket. The rotor basket is mounted in position on a drive shaft passing through the casing and an elastic hose is secured to the rotor basket. The hose enables the volume of each cell to be varied whenever the drive shaft is caused to rotate.