Abstract: This invention relates to an improvement in equipment for the adjustment of blades, particularly propeller blades of fans, turbines, and the like, and especially for propulsion plants on aircraft, adapted to be selectively shut-off in a low-resistance position, the improvement comprising means whereby said blades are selectively foldable out of the operating position thereof about pivot axes transversely to their longitudinal axes, whereby said axes being tangential with respect to a common base circle are inclined with respect to the axis of rotation of said propeller blades in dependence upon the degree of twist of the blades, so that the blades in the folded-in position thereof are positioned next to each other jointly as parts of an imaginary cylindrical or conical envelope surface having a helical path with respect to the longitudinal envelope surface axis.

Abstract: This invention relates to an improvement in a launch for carrying and launching flying bodies, in particular for aircraft, with guide devices in the form of guide rails and guide claws engaging said rails and bearing the flying body,the improvement comprising(a) means whereby the guide claws can be adjusted together with the flying body relative to the aircraft-fixed launch in the direction of flight within the guide rails and also relative to the flying body they carry in the direction of the flying body tail,(b) detachable, positive connection means and frictional connection means between the guide claws and the flying body, and(c) braking means for the guide claws at the launch.

Abstract: This invention relates to an improvement in a light-sensitive layer transfer material comprising a temporary film support and a light-sensitive thermoplastic photoresist layer detachably connected therewith, the improvement being that the underside of the film support has a lower adhesion to the photoresist layer than its upper side. The invention also relates to a process for transferring a light-sensitive photoresist layer from a temporary to a permanent support.

Abstract: The invention concerns a corrugation-free rail for track-bound vehicles. In the invention, the rail comprises a metallic material in the area of the travel and/or guide surfaces of which the stress limit or yield point is above the wheel-induced compression. Preferably, the rail in the area of the travel and/or guide surfaces is composed of a non-work-hardenable material.The preferred material composition is (by weight):______________________________________ carbon 0.2 to 0.4% chromium 13 to 18% molybdenum 0.3 to 1.5% manganese 0.5 to 1.5% silicon 0.3 to 1% remainder is iron.

Abstract: This invention relates to an improvement in a device for the actuation of clamping means for filling yarn in a shuttleless weaving machine with filling yarn insertion by means of gripper systems advanced from both sides into the shed and then retracted and having clamping means for the filling yarn, said gripper systems actuating the clamping means in constrained manner through the intermediary of a control lever mounted on an arm secured to the sley shaft, pivotal therewith, and passing from the outside through the warp of the shed, the control lever being actuated by a cam, a swing lever with roller adapted to engage the cam, and a connecting rod connected to the swing lever and the control lever, the improvement comprising means pivotally mounting the swing lever on the weaving machine outside of the sley shaft.

Abstract: The invention pertains to a developing apparatus for sheet material, such as flexible printing plates, comprising a double-tank combination with removable inserts which carry transport and guide means for conveying the material on a curved path through the processing liquids; in the apparatus, a rotating brush roller which has an elastically supported counter roller is arranged upstream of the discharge area of the developer tank, the brush roller being covered by a protective hood, the rear bottom edge of which extends below the level of the developer liquid and, in addition to pairs of transport rollers, rotatable deviating rollers are disposed at the coated side of the material and stationary guide means at the reverse side of the material, for transporting the material through the tanks.

Abstract: This invention relates to an alloy suitable for the production of permanent magnets and based on a cobalt/rare earth metal alloy in the atomic ratio of 5:1 to 7:2, where the rare earth metal component is composed of about 40 to 60 atomic percent of samarium, about 15 to 30 atomic percent of lanthanum, about 15 to 30 atomic percent of neodymium, and the remainder is a content of other rare earth metals resulting from preparation.

Abstract: The invention relates to a process for the preparation of fine-particulate, stable emulsions of the oil-in-water type, in which the quantity of emulsifier required to achieve a stable emulsion is distributed in about 0.5 to 3 times the amount of water by weight, based upon the weight of the emulsifier, the emulsifying amount of the oleic phase is introduced into the foregoing dispersion, homogenization is performed under the effect of high shear stresses until a uniform gel is obtained, the gel so obtained is forced through a slotted disk comprising a plurality of holes less than 10 mm in diameter and into the residual amount of water, and the emulsion so generated is stirred while avoiding high shear stresses until the gel particles are completely dissolved. The process makes it possible to obtain fine-particulate, storage-stable and dilutable oil-in-water emulsions using only very small quantities of emulsifier.

Abstract: A process and an aqueous treatment solution for cleaning copper surfaces, in particular for removing residues of photoresist layers, which residues still adhere after development to the cleared copper areas, are described. The solution contains a water-soluble aliphatic sulfonic acid having 8 to 30 carbon atoms or a water-soluble salt thereof.

Abstract: This invention relates to an improvement in the process for the preparation of printing forms and/or metallized images by electrostatic charging, exposing, and treating with a toner of a photoconductor layer applied to an electrically conductive support material, and removing the photoconductor layer in the non-image areas, the improvement which comprises effecting removal of the toner-free photoconductor layer by transferring it at a temperature in the range of about 50.degree. to 250.degree. C. to a receiving material which has a greater surface adhesion to the photoconductor layer than does the electrically conductive support material.

Abstract: This invention relates to a novel 4-halogeno-5-(halogenomethyl-phenyl)-oxazole derivative; to a radiation-sensitive composition which, as the radiation-sensitive compound, contains a 4-halogeno-5-(halogenomethyl-phenyl)-oxazole derivative; and to a process for the preparation of the novel 4-halogeno-5-(halogenomethyl-phenyl)-oxazole derivatives.

Abstract: This invention relates to a novel 2-(halogenomethyl-phenyl)-4-halogeno-oxazole derivative; to a radiation-sensitive composition which, as the radiation-sensitive compound, contains a 2-halogenomethyl-phenyl)-4-halogeno-oxazole derivative; and to a process for the preparation of the novel 2-(halogenomethyl-phenyl)-4-halogeno-oxazole derivatives.

Abstract: This invention relates to an improvement in a device for coupling a heddle frame to reciprocatable drive bars with a first coupling part mounted on the frame of the heddle and with a second coupling part mounted to a drive bar, one of the coupling parts comprising drive means insertable between two parallel wall parts of the other coupling part, the coupling parts acting together by means of drive surfaces arranged transversely to the drive direction of the drive bar, the improvement which comprises the drive means being a hook-shaped element having wedging surfaces extending essentially transversely to the main direction of force of the drive bar and diverging toward the hook opening, a shaped element supported by a bearing in order to be limited in rotation positioned between the wall parts and provided with correspondingly located mating wedging surfaces adapted to be received in the hook-shaped element, means for pivoting the drive bar, together with the coupling part thereon, in the plane of the heddle f

Abstract: This invention relates to a contact element comprising a flat body of electrically insulating plastic material,a firmly adhering layer of electrically conductive, non-metallic particles on at least one surface of said plastic material,a dielectric adhesive on at least a portion of the surface of said layer of electrically conductive, non-metallic particles,and metal strips secured to said adhesive.This invention also relates to a process for the manufacture of the contact element.

Abstract: This invention relates to an improvement in a weaving machine with fixed screening surfaces mounted below the plane of weaving and with a movable covering above the plane of weaving and separated from said screening surfaces by a warp-side and cloth-side gap, and with a climate-control system for the space enclosed by the screening and covering surfaces, the improvement comprising that the movable covering is a rigid hood means open toward the weaving plane and pivotal either (a) into a rear position, whereby the cloth-side part of the weaving machine with shed and reed and a passage to the warp-side are made accessible in order to remedy ruptures of filling and warp yarns, or (b) into a front position, whereby the warp-side part of the weaving machine and the heddles are made accessible for changing heddles.

Abstract: The invention relates to a process for the high-temperature galvanization of steel parts containing from 0.01 to 0.6 percent by weight of silicon at temperatures of 470.degree. to 550.degree. C., the steel parts being immersed in a zinc melt containing lead in a quantity up to that maximally soluble at the operational temperature employed but containing at least about 2 percent by weight based upon the weight of the zinc melt. In this manner thick and uniform coatings of zinc are achieved.

Abstract: This invention relates to an improvement in the process for the manufacture of printing forms and printed circuits by coating an electrically conductive support with an organic photoconductor layer and by charging, exposing, and developing the electrostatic image by means of a finely particulate toner, fixing and dissolving the layer away from the non-image areas by means of a decoating medium and, if appropriate, etching of the bared support surface, the improvement which comprises, for the purpose of coating, transferring the organic photoconductor layer on a temporary support to the electrically conductive support with the aid of heat and pressure.

Abstract: This invention relates to an improvement in a device for uniformly pressing on and releasing the pressure from, particularly oscillating, rub-out bars in an apparatus for developing printing plates including transport rolls and, if appropriate, squeezing rolls arranged in pairs, particularly in a horizontal position, with a bearing at each end of each upper roll, and means whereby each bearing and upper roll may be raised and lowered with respect to each lower roll, the improvement comprising pivotal angle lever means, equipped with weight means, and having a lower arm with a pressure roll connected to the end thereof, the pressure roll being adapted to exert pressure on a rub-out bar in the lowered position of each upper roll, and lifting means for the angle lever means comprising bearing means adapted to seat on shaft means of the upper rolls, and connecting means between the bearing means and an upper arm of the pivotal angle lever means.

Abstract: This invention relates to an improved process for preserving a planographic printing form which is ready for printing. In the process, the planographic printing form is treated with an aqueous solution of a water-soluble, film-forming high-molecular weight organic compound and a hydrophilizing acid and is then dried. The hydrophilizing acid used is an organic phosphonic acid, in particular polyvinyl phosphonic acid, preferably in a concentration from 0.05 to 10 percent by weight. As the water-soluble, high-molecular weight organic compound gum arabic, dextrin or polyvinyl alcohol is appropriately used.