Abstract: The invention provides a process according to which the oxygen content in ucible-drawn silicon crystals can be lowered and kept substantially constant throughout the length of the rod. This is achieved in that, after applying the seed crystal to the melt pool, the silicon rod being drawn from the melt pool is initially rotated at a speed from 3 to 6 rev/min and this rotational speed is preferably increased to higher values during the drawing process.

Abstract: A chime assembly is provided which includes an elongated chime support bar, a multiplicity of chimes, suspended from the support bar, and a damper bar pivotably secured to the support bar. The damper bar is movable between an engaged and non-engaged position relative to the chimes suspended from the support bar so as to produce dampened and non-dampened sounds, respectively, upon one striking the chimes.

Abstract: In a strip of nails or like fastening elements for use in a nail or like driving machine the heads of the elements are inclined at an angle of about 15.degree. to the plane normal to the axis of the element so that the heads of adjacent elements can overlap and be welded together when the elements are assembled into a flat strip.

Abstract: A process for protecting carbon bodies against attack by molten silicon by applying a separating protective layer is provided which is characterized in that a separating layer is applied to the surface of the carbon body to be protected in such a manner as to wet it. The separating layer consists of alkaline earth metal fluorides in admixture with 0 to 90 mole % of alkaline earth metal silicates having a melting point lower than that of silicon.

Abstract: A process for the removal of mercury and mercury compounds from aqueous solutions and, in particular, industrial waste liquors, by reduction and filtration, wherein after reduction, the liquors are cleared by letting the mercury particles and dirt particles flow into a settling basin. Subsequently, the supernatant aqueous solution from the settling basin is subjected to filtration in a deep filter with a filtering agent having a grain size of 0.02 mm to 2 mm and preferably 0.04 mm to 0.6 mm, whereupon the mercury is returned by reverse rinsing into the settling basin from the filter and is separated in the settling basin.

Abstract: A flowmeter for liquids includes a hollow housing having an internal metering chamber, at least two liquid connections coupled to the housing and communicating with the metering chamber for establishing a liquid flow therethrough, a generally disc-shaped wobble plate having a centrally-disposed spherical wobble center mounted within the metering chamber and non-contacting coacting signal transmitter elements associated with the housing and wobbler plate for generating signals which proportionally correspond to the wobble frequency of the wobble plate. The flowmeter is especially suited for measuring small or weak liquid flows.

Abstract: A process for purifying solid substances by melting and subsequent resoliication, wherein a melted bath of the solid substance is formed, a roller is placed in the bath so that a first portion of its surface is in contact with the melted substance, and the surface of the roller is cooled to a temperature below the melting point of the solid substance. The cooled roller is rotated in the melted substance to collect a solidified film of the substance on the roller surface. A second portion of the roller surface is passed through a heated zone at a temperature above the melting point of the solid substance, so that the solidified film is remelted and collected in an appliance.

Abstract: Alloy carrier for charging cupola furnaces, the carriers having the form of bodies molded with cement, the alloys being manganese as ferromanganese and silicon in the following composition8-40% Mn9-22% C2-9% Fe18-45% Si15-30% Portland Cement4-8% H.sub.2 O chemically bound2-7% residue components (all percentages by weight)wherein the manganese carrier is ferromanganese carbure and the silicon carrier is silicon carbide.

Abstract: A machine includes a fixed outer cylinder having a cylindrical inner wall, a rotary inner cylinder coaxial with the inner wall, a conical bottle rolling table disposed inside the inner cylinder, a guide rail extending from the table along the inner periphery of the inner cylinder to a position thereabove, drive blades provided on the inner periphery of the inner cylinder, a bottle support secured to the outer periphery of the inner cylinder, a guide ring arranged above the bottle support between the inner wall and the inner cylinder, and bottle position adjusting guides provided on the outer periphery of the inner cylinder. Empty bottles are supplied to the table, and then raised along the guide rail to a position above the inner cylinder and pushed out in a horizontal position over the upper edge of the inner cylinder onto the guide ring and the position adjusting guides by the blades.

Abstract: A catamaran is provided which is equipped to permit facile re-righting thereof after capsizing. The catamaran includes floodable forecastles and buoyancy chambers, and a watertight cabin in the stern separated by bulkheads from the forecastles. Air inlets are provided for introducing compressed air into the buoyancy chambers to effect re-righting of the catamaran.

Abstract: A collapsible shelter includes a central hub, a multiplicity of ribs, pivotably secured and extending radially outwardly from the hub, and a covering material secured to each of the ribs and interconnecting adjacent ones thereof. The ribs of the shelter are movable between an open position in which they are spread apart in a fan-shaped pattern and a closed, collapsed position in which the ribs are disposed closely adjacent one another. The shelter also includes locking means for releasably securing the ribs in an open position. The shelter is especially suitable for use on the beach, swimming pool decks, terraces, and the like.

Abstract: A device for applying liquids onto continuously-fed textile webs and, in particular, carpet webs is provided wherein the liquid is initially removed from a liquid-supply container by means of rollers which are immersed in the liquid. The liquid is then wiped off from the roller surface and is fed onto the web of goods. The invention is characterized by the provision of rollers having a profiled surface into which a wiper positively engages with its associated wiper edge.

Abstract: A hose and pipe coupling is provided having a coupling head and a nozzle which can be inserted into the coupling head, and which is lockable therewith by a locking element. The locking element includes a spring-elastic ring having a slit and onto which are formed two oppositely-directed, arcuate spring arms which surround and embrace the coupling head. The coupling head has a slot-like circumferential opening and an internal annular groove for the partial reception of the spring-elastic ring and the nozzle at its coupling side is also provided with an annular groove for at least at partially receiving the spring-elastic ring in the inserted position of the nozzle. The coupling further includes a protective cap displaceably arranged on the coupling head and over the elastic ring after the nozzle and the coupling head are coupled together.

Abstract: A high pressure steam trap is provided of the type which has at least two serially-connected and operated discharge control assemblies which are switched in series in the flow direction of the condensate, each of which includes a thermal control element which is exposed to the condensate to be discharged, a valve seat, and a throttle element which is actuated by the thermal control element for movement relative to the valve seat. Expansion capsules serve as the thermal control elements and these capsules contain an evaporation liquid, the steam pressure of which, measured at the same temperature, is higher than the steam pressure of the evaporation liquid in the successively-disposed expansion capsules downstream therefrom.

Abstract: Process for producing elastomer materials which are abrasion resistant in the heat, based on polyurethanes and polyoxides, by reacting aliphatic or aromatic diisocyanates, low molecular polydiols or polydiamines and hydroxyl-containing polyesters or polyethers with a molecular weight between 800 and 5000, especially between 2000 and 3000, in equimolar quantities and in liquid phase, characterized by performing the reaction in the presence of rubber powder having diene units incorporated therein, the powder being dispersed in the reaction mass in an amount of 20%-50% by weight, the reaction being carried out in the presence of sulfur or a peroxide, and the rubber powder having a particle size between 5 and 500.mu., the polyurethane reaction mass having a surplus of double bonds capable of cross-linking and casting the elastomer so produced from the liquid mass into molds. Tires made from the elastomers according to the invention are of excellent properties in their tread surfaces.

Abstract: The invention relates to an installation or plant for making sintered brick blanks, which includes a material preparation plant, a press and molding device, a drying and sintering device, a discharge device and feeding means, as well as a central power source, and control and monitoring devices. The material consisting, for example, of clay, loam, clay marl with aluminum oxide and liquid medium, is prepared in the material preparation device and is formed into a strand by means of an extruder in the form molding device. The strand is then cut into brick blanks by means of a strand cutter and a wire cutter. The brick blanks are transferred with suitable transfer means and a displacement device in a defined, spaced-apart relationship, onto a transfer truck and from there onto a drying and sintering truck. A plurality of drying and sintering trucks run in a closed series through a tunnel dryer at an optimum speed for the drying process.

Abstract: An internal combustion engine having a carburetor equipped with the usual throttle valve means controlling the flow of air-fuel flow to the intake manifold is provided with a normally open cut-off valve means located between the throttle valve and intake manifold to close communication therebetween when it is moved to closed position. A vehicle speed responsive device is operatively connected to the cut-off valve to move it to the closed position whenever the vehicle is coasting or moving under closed throttle valve conditions at or below a predetermined vehicle speed. In addition, there is provided a conduit between the intake manifold and the crank case with a pivoted plate clapper type check valve therein to permit flow from the crank case into the intake manifold.

Abstract: A device is provided for the rapid clamping of flexible printing plates on the printing cylinder of rotary printing presses which includes a support bar mounted within and adjacent to the front side of a cylinder groove to which the forward end of plate is clamped by means of clamping springs and a clamping arm disposed opposite of the support bar, which is pivotably mounted within and adjacent to the rear side of the groove and has a plate attachment arm to which the rear end of the plate is clamped. The clamping arm is actuated by means of pressure springs in the clamping direction and in the counter direction by adjustment means so that the plate ends may be clamped independently from one another as well as independently of the plate thickness so as to prevent damage to the plates during the clamping operation and an easy servicing.

Abstract: An adjustable glass display case, which permits ready assembly and disassembly, is provided which includes a frame having four glass plates, a generally horizontally-disposed top plate, a generally horizontally-disposed base plate and two upstanding, spaced-apart side plates disposed generally between the top and bottom plates. Each of the glass plates has two longitudinally-extending, spaced-apart rows of holes formed therethrough and is detachably secured to the other plates of the frame adjacent thereto. The case also includes a back glass plate disposed adjacent to, and detachably secured to the frame. In addition, at least one vertical glass divider is positioned between and disposed generally parallel to said side plates and is detachably secured to the top plate and bottom plate by a clamping assembly which is at least partially retained within at least one of the holes of the top and bottom plates.