Abstract: This invention relates to a process for preparing polysiloxane-polyoxyalkylene block copolymerizates at whose polysiloxane block are laterally bonded at least two polyoxyalkylene blocks, and which contain at least two structural units having the formula ##STR1## WHEREIN R.sup.1 is an alkylene group, R.sup.2 is a monovalent hydrocarbon group and/or a trialkylsilyloxy group, OR.sup.6 is a polyoxyalkylene block derived from an alcohol R.sup.6 OH, and p = 1 or 2, which comprises adding onto polysiloxanes with SiH groups silanes having the formula ##STR2## WHEREIN R.sup.3 is an alkenyl group and X a halogen or an alkoxy group, and reacting this intermediate product with a polyoxyalkylene monool. The invention also relates to novel compounds produced by the process.

Abstract: This invention relates to an improvement in the process for the production of photocopies with two-component diazotype material which cannot be developed by the action of heat alone and which, during continuous passage through a photocopying machine, is first exposed imagewise to light emitted by a mercury lamp and is then exposed, for the purpose of development, to an ammonia/water mixture, in vapor form, in a development chamber, the improvement comprising employing light emitted from a gallium-modified or indium-modified mercury lamp for the imagewise exposure of the diazotype material, and exposing the diazotype material, which has been exposed to light, to an ammonia/water vapor mixture in the development chamber, said mixture in terms of vapor pressure being unsaturated and containing at most 25 per cent by weight of ammonia, at a temperature of about 105 to 120.degree. C and at a predetermined pressure. The invention also relates to an apparatus for performing the process.

Abstract: This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching end walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the end walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means.

Abstract: This invention relates to a paper for serving cable cores for the purpose of providing a swellable layer, comprising a paper base having a layer thereon of cellulose ether granules or of starch phosphate granules or of a mixture of both kinds of granules. The invention also relates to a process for the production of the paper.

Abstract: This invention relates to a support for a roll of web material, comprising first and second support element means, means whereby the spacing between said element means is variable, said element means having opposed stop faces which in use determine the position of a roll supported between said element means, the stop face of the first element means comprising a planar surface and a member resiliently urged toward the second element means through a polygonal aperture in said surface, at least the portion of the member passing through the aperture being a frustum of a pyramid tapering in the direction of the second element means, the basal surface of which frustum is similar to and larger than the polygon of the aperture, and the stop face of the second element means tapering in the direction of the first.

Abstract: This invention relates to a compound or mixture of compounds having the general formula ##STR1## in which R is hydrogen or an alkyl group containing 8 to 18 carbon atoms, at least one R being alkyl, and x is 0 or 1. The invention also relates to a process for making the novel compound or mixture thereof, a process for killing microbes using the novel compound or mixture thereof, and a microbiocidal composition using the novel compound or mixture thereof.

Abstract: This invention relates to an improvement in the process for the manufacture of modified starch ethers in which, prior to, during, or after etherification, a reaction with a modifying agent is conducted in a wet alkaline medium, the improvement comprising that, if etherification were the only reaction conducted, an at least preponderantly water-soluble starch ether would be formed, and the modification results in an absorbent modified starch ether more than 40 per cent by weight of which is insoluble in water.

Abstract: This invention relates to an improvement in the process for the preparation of a polyhydroxy methylene ether in which polyhydroxy methylene is reacted with an alkylating agent in an aqueous alkaline medium, the improvement comprising that the alkylating agent has at least one ionic or ionizable carboxyl group, phospho group, quaternary ammonium group, or substituted amino group. The invention also relates to ion exchangers composed of the polyhydroxy methylene ethers.

Abstract: This invention relates to a microfilm-enlarging apparatus comprising means adapted to provide a source of light to expose photosensitive material through a microfilm to be enlarged, sensing means adapted to sense the intensity of the light transmitted, in use of the apparatus, by the entire area of the microfilm to be enlarged substantially only within a wavelength range of from 360 to 560 nm, and control means adapted to control the total amount of light to which the photosensitive material is exposed in an enlargement step in dependence upon the value of the intensity sensed by the sensing means.

Abstract: In a diazo copier, a first developing chamber for developing a diazo material employing an ammonia-containing vaporous developer, a second chamber adjacent an output aperture of the first developing chamber, a source of heat, and a suction device for drawing off developer escaping from the second developing chamber through an output aperture and for removing developer from the diazo material are provided. A rotatably mounted porous hollow roller means forms part of said suction device positioned in said second chamber and a suction duct means is connected to said roller means. A transport means which is not in heat-conducting connection with the source of heat is provided for bringing the copying material in contact with the hollow suction roller means.

Abstract: An apparatus for peeling off an adherent, electrostatically charged, flexible recording material from an electroconductive supporting plate, comprising an electroconductive supporting plate adapted to contact one side of the material, a guide for the recording material so mounted as to project beyond an image plane on the supporting plate in the direction in which the recording material is to be peeled off, a holding element positioned upstream of the guide and the supporting plate, and a pulling device for exerting a lateral pull on the recording material when the material is held by the holding element, whereby the material is progressively separated from the image plane in a wedge-like manner.

Abstract: This invention relates to a developing apparatus for light-sensitive material comprising elongated open trough means, partition means in said trough means dividing said trough means into sections, means providing communication between said sections, inlet and outlet means for said trough means, said inlet means being adapted to introduce solution into one of said sections and said outlet means being adapted to remove solution from another of said sections, heating means in said section containing said outlet means and being positioned below an opening of said outlet means in said trough means, and temperature sensor means connected to said heating means via thermostat means.

Abstract: This invention relates to a new class of photoinitiators and to copying compositions containing said photoinitiators and further comprising at least one polymeric binder and at least one ethylenicylly unsaturated polymerizable compound. The photoinitiator of the present invention is a compound of the following general Formula II: ##STR1## Further, this invention relates to a new class of compounds which correspond to the following general Formula I: ##STR2## and which are particularly suitable as photoinitiator compounds coming under Formula II.

Abstract: This invention relates to a radiation-sensitive copying composition comprising a compound (1) which splits-off an acid upon irradiation and a compound (2) having at least one group selected from the group consisting of a carboxylic ortho acid ester group and a carboxylic acid amide acetal group, which composition, upon irradiation, forms an exposure product having a higher solubility in a liquid developer than the non-irradiated composition.

Abstract: This invention relates to an improvement in a copying apparatus, particularly a photoprinting apparatus, comprising an exposure station, a developing chamber, and an evaporator associated with the developing chamber, in which a developer composed of an ammonia/water mixture is virtually completely evaporated and over-heated at a temperature about 100.degree. C, preferably about 105.degree. C, and at a predetermined pressure, preferably atmospheric pressure, the apparatus further including, for dosage of the ammonia/water mixture, a feed pipe connected with the evaporator, a valve connected with the feed pipe, and a control unit connected with the valve, whereby the rate of feed of the ammonia/water mixture may be adapted to different operating conditions, the improvement comprising first switch means, actuatable by an original, positioned at an entrance for the original upstream of an exposure station in the feed direction of the apparatus.

Abstract: This invention relates to a printing plate comprising a support bearing either(A) a layer comprising particles each containing a hydrophilic metal core and an oleophilic metal casing or(B) a layer comprising particles each containing an oleophilic metal core and a hydrophilic metal casing.

Abstract: This invention relates to a process for coating the surface of a shaped article of cellulose hydrate with a layer of polymer material which comprises applying to the surface of a shaped article in the gel state and based on cellulose hydrate, a liquid layer of an aqueous solution of a chemically modified protein obtained by mixing an aqueous alkaline protein solution with an aqueous solution of N-methylol-acrylamide or N-methylol-methacrylamide or of the alkoxy derivatives thereof of aliphatic alcohols with 1 to 8 carbon atoms, particularly of organic, tetrafunctional, doubly unsaturated compounds of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6 carbon atoms, andR.sub.3 is the group --(CH.sub.2).sub.n --, n being an integer from 1 to 8, or the group ##STR2## in which R.sub.4 is an alkyl group with 1 to 18 carbon atoms, SUBJECTING THE LIQUID MIXTURE TO A DWELL TIME, HEATING THE COATED SHAPED ARTICLE, AND WETTING THE SHAPED ARTICLE.

Abstract: Process for the transformation of comminuted cellulose ether, which has been rendered at least largely water-insoluble by modification but is still highly swellable with water, into an easily workable material, comprising wetting a hydrophilic support web, applying the comminuted modified cellulose ether to the wetted web, and drying. This invention also relates to an apparatus for performing the process.

Abstract: This invention relates to an improvement in a device for the stabilization of a captive aircraft with a drive unit for rotor blades which produce lift with the aid of thrust, wherein a mooring line engages below the aircraft center of gravity, and wherein the device includes a control device intervening in the drive unit and the rotor blades for producing thrust,The improvement comprisingA position regulator and translation damper for the purpose of influencing controls for the rolling and pitching axes,An angular velocity regulator for the purpose of influencing yaw control, andA cable line traction regulator operating in dependence upon cable line traction in immediate proximity to the aircraft, and in dependence upon an output or power regulator for the drive unit, for the purpose of influencing output power regulation and the rotor blades for producing lift.

Abstract: Process for the transformation of comminuted and modified cellulose ether swellable with water, into a material that may easily be further processed and may thus be used without difficulty in particular in the production of hygienic pads, napkins, bandages, tampons, wrapping papers, insulating material, household papers and similar articles. In said process the modified cellulose ether is attached by electrostatic flocking to at least one surface of a web-shaped hydrophilic support that has been wetted with water and the support is dried.