Abstract: This invention relates to a yarn tensioner for weaving machines in which a filling is intermittently removed from a supply spool by means of a filling insertion mechanism, comprising annular brush means loosely surrounding a rotatable drum means with a smooth surface, means whereby said brush means is mounted on said drum means so as to be freely displaceable within an axially limited range, a first, fixed yarn guiding eyelet means mounted between the supply spool and the drum means, said first eyelet means being adapted to feed a yarn along an approximately axial direction to said drum means, and a second and also fixed yarn guiding eyelet means mounted at the other end of said drum means and adapted to forward said yarn in an approximately axial direction, said yarn when being between said two yarn guiding eyelet means passing on the surface of said drum means and underneath said brush means.

Abstract: An apparatus for developing diazo material according to a semi-dry process comprising an applicator roll with a liquid absorbing cover, a press roll having a grooved hard surface, a backing roll biased against the press roll, and a blade for reducing the amount of developer liquid on the applicator roll and the press roll. The press roll is displaceable toward the applicator roll. The plane of transport of the diazo material to be developed passes between the applicator roll and the press roll. The axial moment of inertia of the press roll relative to the axial moment of inertia of the applicator means is determined in accordance by an equation containing weight components of the press roll, weight components of the applicator roll, the contact pressure component of the backing roll, and the sum of the components of the tangential force and normal force of the contact pressure of the blade and the frictional force along the line of contact of the blade on the applicator roll.

Abstract: This invention relates to an improvement in a material adapted for imagewise exposure to actinic light comprising a transparent or translucent support having a positive-acting quinone diazide light-sensitive coating composition in direct contact with one surface thereof, the improvement comprising that the surface of said coating in direct contact with said support is substantially photodecomposed, and that a gradient exists in said coating wherein the percentage of undecomposed light-sensitive quinone diazide increases with increasing distance from said support. The invention also relates to a method for preparing the novel material.

Abstract: This invention relates to an improvement in an apparatus for monitoring the drawing-in operation and the tearing-off of a sheet of material in a dryer, wherein a sheet of material to be dried is guided over continuously-rotating screen-type conveyor belts, particularly jet dryers with conveyor belts positioned in several stages, and with means for transferring the sheet of material from one stage to the next-following stage, the improvement comprising a two-stage construction of the monitoring apparatus, a first stage comprising a first partial means for optically monitoring the path of the sheet of material during the drawing-in operation, and a second stage comprising a second partial means for monitoring the tension of the sheet of material in running operation, said first partial means releasing said second partial means upon completion of a malfunction-free drawing-in operation.

Abstract: This invention relates to an aluminum base material for presensitized printing plates. The aluminum has an anodically produced oxide layer on the surface thereof, which layer is at least 0.0002 mm. thick, and the oxide layer is reacted with polyvinyl phosphonic acid.

Abstract: This invention relates to a mounting structure for a tubular turbine having a horizontal or slightly inclined machine axis, particularly a Kaplan-type tubular turbine, and whose supporting forces act at a right angle to the duct wall of said turbine, on one hand, and parallel to said duct wall, on the other hand, and are absorbed by supporting plates equipped with foundation anchors in said duct wall, comprising a knife-edge suspension means connected to said turbine housing and in engagement with one of said supporting plates, and adapted to lead that portion of said supporting forces acting at a right angle to said duct wall into a foundation, and elastic member means connected to said supporting plate and to a support for said suspension means, and adapted to absorb that portion of said supporting forces acting parallel to said duct wall.

Abstract: A method and apparatus for adding ink receptive areas to or removing ink receptive areas from printing plates in which a consumable stylus, such as a graphite pencil "lead," or a non-consumable stylus, such as a copper wire, is brought into contact with the printing plate.

Abstract: This invention relates to an improvement in a press for dehydrating material in which the material is passed between two endless sieve belts adapted to move in the same direction and to pass over and around pairs of rollers and/or offset upper and lower rollers, the rollers in various sets forming a pre-dehydration zone and a wedging or compression zone,The improvement comprising a compression zone in the form of a frame-like structure, said structure containing individual compression roller means mounted on bearing blocks of varying heights,And means for displacing and/or exchanging said bearing blocks, whereby a path for said material has an ascending slope with line compression, or is wavelike or S-shaped with surface compression.

Abstract: An absorbent laminate comprising a first layer of absorbent material and at least one layer comprising a tissue having an absorbent carbohydrate derivative on at least one face.

Abstract: This invention relates to a control device, suitable for use to control the exposure of a light-sensitive material in a copying apparatus for the preparation of a printing plate, which comprises program store means for predetermining a basic exposure, input line means for connection to a photocell for measuring the luminous intensity of a light source in the copying apparatus, comparator means having its input connected to an output of the program store means and connected by a transmission path means to the input line means, the output of the comparator means being connectable to a control switch for the light source, and the transmission characteristics of the path being variable in steps, adjacent pairs of which have transmissivities in the ratio .sqroot.2:1.

Abstract: This invention relates to an improvement in a light-sensitive copying material, the copying layer of which comprises a water-soluble, curable binder and a diazonium salt polycondensation product of recurring units of the general types (A-N.sub.2 X) and (B) which are linked to one another by intermediate members which have two bonds and are derived from a carbonyl compound capable of undergoing a condensation reaction, wherein A is the radical of a compound which contains at least two isocyclic or heterocyclic aromatic rings and is able to undergo a condensation reaction, at least at one point in the molecule, with formaldehyde in an acid medium, B is the radical of a compound which is free of diazonium groups and is able to undergo a condensation reaction, at least at one point in the molecule, with formaldehyde in an acid medium, and X is the anion of an acid which forms a water-soluble salt with the condensation product, the improvement being that fish glue is the water-soluble, curable binder.

Abstract: This invention relates to an improvement in the process for beating up and cutting off fillings inserted into the shed in shuttless weaving equipment provided with weft mixers, in particular in weaving machinery with filling insertion by means of grippers advancing into and retracting from the shed, the inserted filling being cut off on the insertion side outside the selvage, the improvement comprising that simultaneously with or following the beating up of the last inserted filling: (a) cutting off the previously inserted filling and seizing the free end, connected to a supply spool, by a holding system, (b) guiding the last inserted filling over the back of a scissor blade facing the shed to a catching hook mounted outside the scissors, (c) simultaneously with the back-motion of the shed, displacing the scissors transversely to the direction of the filling in an orthogonal plane and reopening them, the last inserted filling passing from the back of the scissor blade in front of the other scissor blade into

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-methylolacrylamide 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: This invention relates to an improvement in a roller frame including a cantilever structure supporting a roller, particularly in the press portion of a paper machine. The improvement comprises support means pivotally mounted on said frame and supporting one end of said cantilever.

Abstract: This invention relates to an improvement in a feeder mechanism at an exposure station of a photoprinting machine, in which a transport device is connected to a first rotary drive for transporting a copying material through the exposure station and in which a second rotary drive is provided which may be operated at variable speeds relative to the speed of the first rotary drive and which is connected to a roller at the beginning of the transport path of an original to be copied, the improvement comprising an additional pair of preceding rollers positioned in the transport path of the original upstream of the transport device in the direction of transport, means connecting said pair of preceding rollers to said variable speed second rotary drive which may be switched in order to drive said pair of preceding rollers optionally at a speed corresponding to the transport speed of the transport device or at a lower speed, switching means in the transport path between said pair of preceding rollers and the transport

Abstract: This invention relates to a process for europium chloride enrichment in the residual salts obtained from the fusion electrolysis of water-free rare earth halides, which comprises electrolyzing a melt of rare earth halides which contains at least 4% by weight of fluorides in the form of alkali fluorides, alkaline earth fluorides and/or rare earth fluorides.

Abstract: This invention relates to a composition comprising a blend of a copolyester, a polyisocyanate and a compatible organic polymer, the ratio by weight of polyester to polymer being within the range of from about 20 : 1 to 0.5 : 1 by weight. The invention also relates to a laminate including the novel composition.

Abstract: This invention relates to a copolymerizate foil suitable for surface finishing, and which may be thermosetting, composed of:(A) an elastomeric copolymerizate with a glass transition temperature no higher than +10.degree. C.

Abstract: This invention relates to an additive combination, for water-containing, setting building materials, in particular those of cement, based on an anionic polyelectrolyte, and including at least one nonionic, low-foaming surfactant. The invention also relates to a process for plasticizing water-containing, setting building materials.

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.