Abstract: An apparatus for producing a gaseous developer medium for a diazotype material from a developer solution, which apparatus comprises a vessel provided with a heater and an outlet for residual liquid, for generating a stream of vapor from a liquid,A conduit in which a stream of developer solution flowing in one general direction can come into contact with a stream of vapor flowing in the other general direction, which conduit communicates at one end with the vessel and is provided at, or in the vicinity of, the other end with an inlet for the developer solution,A condenser which communicates with the end of the conduit remote from the vessel, the condenser having an outlet for gaseous developer medium and an outlet for condensed developer medium,And a vaporizing vessel adapted to be located in a developing chamber for diazotype materials, which vaporizing vessel communicates with the outlet for condensed developer medium.

Abstract: This invention relates to a process for the production of a shaped body from a cellulose derivative which comprises extruding a viscose solution through a shaping die into a precipitation bath and passing the shaped body thus formed through regenerating and washing baths, then treating the body with an acid aqueous solution of a secondary chemical plasticizer, drying it by heating, and finally moistening it with water after drying, said viscose solution being mixed with a liquid containing alkyl-trimethylol-urea of the following general formula ##STR1## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, and/or with a liquid containing alkyl-ethylene-urea of the following general formula ##STR2## wherein n is a whole number between 11 and 19, preferably between 15 and 18, and especially the number 17, or with a liquid containing alkylamine-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR3## wherein n is a whole number between

Abstract: This invention relates to a control system for the release of a parachute contained within an aircraft adapted to be towed by a cable secured thereto, the cable being electrically conductive and having electrical contact to a control system in the aircraft, and an electrically conductive contact ring on the contour of the aircraft and being insulated with respect to the skin of the aircraft, whereby in case of separation of the cable from a towing aircraft, the cable touches the contact ring and closes a circuit composed of the contact ring, the cable, and the control system which releases the parachute.

Abstract: This invention relates to an improvement in a flow sonde, particularly for measuring aerodynamic values in aircraft such as the total pressure, the static pressure and the total temperature. The improvement comprises thermally controlled resistor means in the sonde body, said means having a low increase of resistance within a specific temperature range and a high increase of resistance in an adjacent range, whereby there is obtained a high heating power at a low ambient temperature and a limitation of the power absorption when a predetermined temperature is reached.

Abstract: This invention relates to a process for automatically changing the illumination intensity of a light source in a copying apparatus in which the transparency of the original is measured with at least one light-sensitive measuring unit and in which, based on the measured transparency, a signal is passed on from this measuring unit for controlling the speed of a drive motor, comprising comparing the signal coming from the light-sensitive measuring unit and passed on for controlling the speed of the drive motor with a predetermined signal corresponding to the highest speed of the drive motor and, if the measured signal requires a higher speed than that of the predetermined signal, the difference of the two signals is formed and the illumination intensity is controlled in correspondence with this difference signal. The invention also relates to an apparatus for performing the process.

Abstract: This invention relates to an improvement in a clamping device adapted for use at a gripper head for a shuttleless loom, in which a gripper head pulls a weft thread out of the shed while held between two clamping jaws by a clamping lever of a clamping device subject to spring action while a control means acts upon said clamping lever provided with a clamping jaw, the improvement which comprises means whereby one of said clamping jaws is movable at a part carrying it and is springingly, yieldingly positioned, in the opening direction of the clamping device, in a limited manner, and said control means operates in a two-stage manner such that the first actuating stage is within the limits of movability of said movable clamping jaw, and the second actuating stage lifts the clamping jaws off of each other.

Abstract: This invention relates to a printing frame for the exposure of printing plates comprising two closable components, flexible sheet means secured to one of said components and being adapted to press a printing plate and an original together and maintain them in close contact during exposure, and means for exerting air pressure on said flexible sheet means in order to press said printing plate and original together.

Abstract: This invention relates to an improvement in a discharge and draw-off device for driers of material webs including nozzle casings mounted transversely over the path of a web to be dried, and having discharge apertures in said casings for discharging a drying medium and interstices between said casings for drawing-off said medium, the improvement comprising a substantially V-shaped formation of rows of the discharge apertures, whereby a double whirl is produced whose flow spiral increases in the direction toward the draw-off openings.

Abstract: Apparatus for developing a printing plate, preferably a plate sensitized and imaged on both sides, including a pre-soak chamber containing a body of developer fluid, preferably a combination developer-finisher solution, and adapted to soften the areas of the plate coating to be removed as the plate passes through the chamber; a cleaning and scrubbing unit, including, a pair of rotatable brushes adapted to rotate in a direction opposite the direction that the plate travels through the apparatus, a pair of developer supply conduits mounted adjacent the brushes and behind the brushes, with respect to the direction of travel of the plate, and adapted to spray developer fluid on the bristles of the brushes at a time immediately before the latter contact the plate, a pair of deflectors mounted in contact with the brushes and ahead of the brushes, with respect to the direction of travel of the plate, and adapted to clean solid debris from the brushes and a pair of reciprocatable scrubber pads having a velour pad and

Abstract: This invention relates to: an electrophotographic recording material consisting of an electroconductive support material and a photoconductive double layer of organic materials which consists of a homogeneous, opaque, charge carrier producing dyestuff layer of a compound corresponding to the general formula ##STR1## WHEREIN M IS 0 OR 1,n is 1 or 2,X is oxygen or imino nitrogen (=N-),R.sub.1 and R.sub.3 which may be the same or different, are hydrogen, an alkyl group with 1 to 4 carbon atoms, an anthra-quinone or benzanthrone group, or --CO--NH--R.sub.5, with R.sub.5 being an anthraquinone group,R.sub.2 and R.sub.4, which may be the same or different, are hydrogen or a single bond directed to the position of a radical in R.sub.1 or R.sub.3, or a single bond which, together with the imino nitrogen, forms part of a pyrazole or pyrimidine ring, andR.sub.1 and R.sub.

Abstract: This invention relates to an improvement in a mounting for the sealing housing in a main coolant pump having a vertical pump shaft, an impeller at the lower end of the pump housing, and the pump housing being closed at the upper end thereof by a pump cover in the region of which the sealing housing is located,The improvement comprising that said sealing housing is positioned upwardly from said pump cover,An outer pipe means connecting said pump housing and said sealing housing and passing without touching through an aperture in said pump cover,Said outer pipe means having a portion of swan-neck configuration, in cross-section, in an extension of said pipe means into a region of a housing flange,And said swan-neck portion terminating in a flange between said pump housing and said pump cover.

Abstract: This invention relates to an improvement in a rotary piston engine of trochoidal design, of the epitrochoidal or hypotrochoidal type with an outer envelope, with the piston surface and/or housing bore being equidistant to the mathematically exact trochoid, and including a follow-up drive, the improvement comprising that the minus-equidistant of the piston and/or of the housing bore has a value exceeding 10% of that of the generating radius and smaller that that for which the piston contour is tangent with the follow-up drive in the dead center positions.

Abstract: This invention relates to electrophotographic recording material comprising an electrically conductive carrier material having thereon a photoconductive multi-layer system of a charge carrier producing dyestuff layer or organic material and an insulating, organic, covering layer thereon with at least one charge carrier transporting compound, said dyestuff layer comprising at least two pigment dyes absorbing in different spectral regions, i.e. in the region of relatively long waves and in the region of relatively short waves.

Abstract: This invention relates to an electrophotographic recording material consisting of an electroconductive support material and a photoconductive double layer of organic materials which consists of a homogeneous, opaque, charge carrier producing dyestuff layer and of a transparent top layer of insulating materials with at least one charge transporting compound.

Abstract: This invention relates to an improvement in an aircraft driven by a ducted fan and having a displaceable louver at the end of the flow channel for vertical flight, hovering flight, transition, and high-speed flight, the improvement comprising a vertical separating surface dividing the flow channel into two flow channels, and at least one vertical flap, pivotal about a vertical axis, mounted on the forward edge of said separating surface, whereby roll control may be effected.

Abstract: This invention relates to an improvement in the process for shirring cylindrical tubular casings, especially artificial sausage casings of synthetic material, in which an inflated casing is conveyed in the direction of its longitudinal axis and shirred, with pleating, against a counter-force by shirring forces acting upon the circumference of the casing, the improvement comprising that the forces acting upon the surface of the casing do so continuously and simultaneously, at equal intervals, at a plurality of points on at least two straight lines extending parallel to and symmetrically about the longitudinal axis of the casing, the action being at right angles to the longitudinal axis of the sausage casing, and circumferentially thereof, and, simultaneously, in the direction of the longitudinal axis of the casing, against said counter-force. The invention also relates to an apparatus for performing the process.

Abstract: This invention relates to a process for automatic exposure time control in the exposure of light-sensitive copying material; comprising, photoelectrically measuring the illumination in the plane of the copying material, comparing the voltage produced by the photoelectric measuring means with a reference voltage, which is inversely proportional to time, during exposure, and terminating exposure when a predetermined difference between the two voltages is reached. The invention also includes an apparatus for performing the process.

Abstract: An apparatus for the continuous development of a diazotype material with a developer powder in which the developer powder is disposed in a hollow body, such as a rotatable drum, a fine-meshed network having openings smaller in cross-section than the cross-section of the smallest grains of the powder, such as a metal screen, forms at least a part of the walls of the hollow body and a transport device, such as an endless belt, moves the diazotype material relative to and in contact with the side of the network opposite the developer powder.

Abstract: This invention relates to an article which comprises an electrically conductive carrier layer, a layer comprising a material selected from the group consisting of selenium or selenium-tellurium, and, on the side of the selenium or selenium-tellurium layer remote from the carrier layer, a layer comprising an oligomeric condensation product of 3-bromopyrene and formaldehyde having a degree of polycondensation of 6 to 10.

Abstract: This invention relates to a cutting device for coated plates comprising frame means,First stationary cover plate means on said frame means,Second movable cover plate means on said frame means,Heatable knife means adapted to be displaced along one edge of said first stationary cover plate means between said first and second cover plate means,Carriage means below said cover plate means for supporting said knife means,And means for displacing said carriage means and said knife means supported thereby.