Abstract: An improved lawn combine includes a frame having a plurality of rotatable wheels, including a pair of spaced-apart rear wheels, supporting and coupled to the frame, drive-actuated feed devices mounted on the frame for feeding materials in prescribed dosages to the lawn surface and drive means mounted on the frame for propelling at least one of the wheels of the frame and for actuating the aerator and the feed devices. The combine further includes a pair of manually-operable brake assemblies, each of which is disposed for cooperation with one of the rear wheels. Each of the brake assemblies is movable between a non-engaged and engaged position relative to the associated rear wheel, in the latter position of which it at least frictionally retards rotation of the associated rear wheel.

Abstract: A magnetic clipping device especially suitable for magnetically retaining on ferromagnetic walls sheet-like articles which may also be stitched or bound together, consists of two permanent magnet face-like elements between which the article is retained which are coupled with each other by a joint or hinge. The permanent magnet elements each consist of a relatively thin permanent magnet foil having a thickness up to 1mm which consists of a rubber- or plastic resin-based anisotropic powder like permanent magnet material. The foils are thoroughly magnetized to define relatively wide stripe-like magnet poles for generating magnetic adhering faces, and the permanent magnet foils are so disposed that opposite stripe-like pole faces face opposite one another.

Abstract: A key holder is provided which includes a plurality of resilient, generally S-shaped key partitions arranged in a pack and generally disposed in spaced-apart, parallel relationship. Each of the partitions having two opposite end portions which are joined together by a sloping intermediate portion, and the end portions of adjacent partitions defining key head-receiving slots therebetween. A plurality of partition spacers are also provided, each of which is disposed solely between the intermediate portions of an adjacent pair of the partitions. The key holder also includes a pair of generally S-shaped side plates, each of which is disposed on an opposite side of the pack of partitions. Each of the side plates have two opposite end portions which are joined together by a sloping intermediate portion, which are in substantial alignment with the end and intermediate portions of the partitions.

Abstract: A urological endoscopic irrigation system which consists of a reverse osmosis unit adapted for connection to an available hospital supply to produce at its output an available supply of nonpyrogenic water. The water is fed through a dionization chamber and final sterile filter into a reservoir bag which is supported on a weight switch so that the bag will be filled with a predetermined amount of filtered and nonpyrogenic fluid for use by a cystoscope. A reservoir and pump may be provided in the output line of the reverse osmosis unit to provide additional fluid capacity for the cystoscope.

Abstract: A process for working up hydrolyzable and/or water-soluble compounds by ping them in water is provided wherein the compounds are fed into the funnel of a rotating cone of water running down into the tip of the cone, with the water being constantly renewed by a supply at the base of the cone. The process is particularly useful for working up mixtures containing silanes and/or chlorosilanes in silicon deposition plants.

Abstract: Copolymers according to the invention contain a new crosslinking system based on carbonamide and/or N-methylol carbonamide groups in the copolymer, the crosslinked polymers containing the following structural units ##STR1## in which R represents a straight-chain or branched aliphatic hydrocarbon radical having 0 to 9 carbon atoms,R represents a hydrogen atom or a methyl radical, andR represents hydrogen or a --CH.sub.2 OH-- group and have molecular weights of between 10.sup.3 and 10.sup.6.The invention also relates to a process of making the copolymers, which have among other advantages a superior resistance to solvents. They are useful as coating compositions and the like.

Abstract: An improved blast furnace for heating granular materials is provided of the "CCR" type which includes two similar stacks disposed side by side, one of which heats the goods by direct current while the discharging gases escape from the other parallel unheated stack in a countercurrent manner. Both of the stacks are provided with an annular channel between the heating and cooling zones thereof which is formed by hollow generally cylindrical members which are connected with each other by cross-intersecting channels. These cylinders are suspended in the enlarged bosh-like lower ends of the stacks by supports which do not extend below the cylinder members, so as to minimize damage to the supports.

Abstract: A casting powder for the continuous casting of steel on the basis of silicate slags having the chemical analysis______________________________________ 25-45% by wt. of SiO.sub.2 20-45% by wt. of CaO 1-16% by wt. of Al.sub.2 O.sub.3 0.1-15% by wt. of MgO 0.1-1.5% by wt. of FeO (20-45.1% by wt. of CaO + MgO) 0.05-10% by wt. of TiO.sub.2 3-15% by wt. of Na.sub.2 O + K.sub.2 O 0.05-10% by wt. of MnO 0-7% by wt. of B.sub.2 O.sub.3 3-10% by wt. of bound F ______________________________________which may as well include impurities from the raw materials. The slag is premelted, foamed to a bulk weight of 0.5 to 1.4 kg/l, preferably 0.8-1.2 kg/l and coated superficially with a layer of 1.5 to 15% by weight, preferably 2 to 6%, of carbon black and/or graphite with the aid of an appropriate adhesive.

Abstract: A valve is provided of the type which includes a valve housing having a valve seat, a thermal control element mounted in the valve housing having a thin, rigid wall portion and a membrane member coupled peripherally with the wall portion, so as to define an expansion chamber therebetween in which an expansion medium is disposed and a locking member which is activated by the membrane for cooperative coaction with the valve seat. The valve is characterized by the provision of a valve housing having an inner chamber which substantially corresponds in size and shape to the outer configuration of the thermal control element. The inner chamber is provided with flow conduits disposed along the surface of the control element. The flow conduits are coupled to an inlet opening of the valve housing and an outlet opening defined by the opening of the locking member relative to the valve seat. The valve is especially intended for steam traps.

Abstract: A side seal assembly for a screening machine of the type which includes an elastic sealing element which bridges a slot between the sidewall and the screening lining of the screening machine, and a support for the sealing element is provided. The sealing element is covered with an elastic foam plastic at least at the side thereof facing the screening lining, and that the support for the sealing element is rigidly coupled with the sidewall of the screening machine.

Abstract: An apparatus for stacking and unstacking trays, especially adapted for use n connection with Mogul machines includes a base, a plurality of links and a generally vertically-disposed elevator frame pivotably mounted on the base by means of the links for reciprocal movement over an arcuate path between two laterally-displaced end positions. A gripper device for retaining and releasing trays is mounted on the elevator frame for longitudinally-displaceable movement relative thereto.

Abstract: A board game apparatus which includes a plurality of player tokens, a random number generator, and a board having a multiplicity of playing spaces which cooperatively define at least one endless main path and a multiplicity of path branches leading off from the main path. The branches end in a circular subpath having a plurality of subspaces which surround an area subject to exclusive player control and certain of the subspaces permit access of a player's token to the area to permit exclusive appropriation thereof. The game is specifically intended to simulate a space exploration race.

Abstract: A lap cutting abrasive for use with lap cutting blades, comprising one part y weight of a low viscosity carrier liquid, and one to three parts by weight of cutting particles having an average size of from 10 to 50 .mu.m suspended in the carrier liquid. The carrier liquid has a viscosity of from 1 to 10 cP, and preferably is aqueous glycerin. The cutting particles preferably have an average particle size of from 15 to 30 .mu.m. In a further embodiment, the average particle size of the cutting particles is matched to the thickness of the lap cutting blade used during sawing. Preferably, the cutting particles have an average particle size corresponding to 0.15 to 0.1 times the thickness of the lap cutting blade used during sawing.

Abstract: A valve is disclosed of the type which includes a thermal control element having at least one relatively thin rigid wall portion, a flexible membrane coupled to the periphery of the wall portion so as to define therebetween an expansion chamber in which an expansion medium is disposed, and a locking member which is actuated by the membrane for cooperative coaction with a valve seat. The valve is characterized by the provision of a relatively thick-walled, jacket-type housing which encompasses the control element in a supporting manner. The housing has flow conduits which oppose and run along the surface of the control element; the flow conduits being provided with an input and output opening for the medium to be discharged. The valve is particularly useful for steam traps.

Abstract: A device for deflecting a product stream consisting, in particular, of folded sheet products, from a first to at least one following longitudinal conveying device which are laterally displaced apart is provided. The distance between the first and second longitudinal conveying device is bridged by a further longitudinal conveying device which is inclined to an extent corresponding to the lateral displacement of the first and second longitudinal conveying device. The further longitudinal conveying device preferably includes two parallel, uniformly-driven conveying elements positioned adjacent to one another.

Abstract: A fill wire feeder for feeding weft wire to a wrap shed from a lay beam includes a weft wire feeding mechanism disposed outside of the wrap shed and mounted on one end of the lay beam. The mechanism includes two pairs of coacting rotatable rollers, the nips between each pair of which lie in the same plane to define a linear travel path for the weft wire guided therebetween and drive means for rotating at least one roller of each of the pairs.

Abstract: Hot processed bituminous mixed composition, particularly for road construction, characterized by containing non-hygroscopic, crystal water-containing substances, that upon heating to the mixing temperature of the mixed bituminous composition will completely or partly release their crystal water. The invention further relates to a filler as component of the mixed composition.

Abstract: A process for the manufacture of .beta.-isobutyrylaminocrotonic acid amide by reacting .beta.-aminocrotonic acid amide with dimethylketene in the liquid or gaseous state without the application of external heat at temperatures in the range of from room temperature to 70.degree. C. The dispersion medium used is an organic solvent having a boiling point above 40.degree. C. that may contain up to 0.1 mole of water and 0.2 to 2 moles of a carboxylic acid having 1 to 4 carbon atoms per mole of .beta.-aminocrotonic acid amide. If the dimethylketene is added undiluted the reaction is carried out in the absence of oxygen and in the presence of a protective gas atmosphere. The .beta.-isobutyrylaminocrotonic acid amide is obtained in the form of two stereoisomers (Z- and E-forms), which differ as regards their melting point and their solubility in organic solvents. On heating to 40.degree. C., the E-form is converted into the Z-form.

Abstract: A safety mounting device for a fuel-pump nozzle includes a vertical passage which attaches the nozzle receptacle to the pump casing. The major portion of the passage is located within, but sealed from the casing, but upper and lower vents open outside the casing to induce a throughflow of air which prevents any explosive gas mixtures from the nozzle from penetrating the casing. A closed or vented chamber may be provided between the receptacle and the passage.

Abstract: Flowing agent for concrete and mortar based, on the one hand, on lignin sulfonate and, on the other hand, on ring-sulfonated or sulfomethylated aromatic substances, wherein the mixture of the basic ingredients is after-condensed and after-sulfitized. The invention also relates to a process for making the flowing agent.