Abstract: Microorganic cells or microorganic cells which have undergone various forms of treatments, when treated with a reagent having two or mroe functional groups, give rise to microorganic cells having one of the functional groups of the said reagent chemically bonded thereto and also retaining a free functional group. Contact of an enzyme with the microorganic cells having a free functional group results in immobilization of the enzyme on the said cells.

Abstract: A dyestuff applicator, located inside a cylindrical printing screen, comprises a horizontal ink tube which supports an axially extending ink-distributing member with freedom of relative mobility in a vertical axial plane of the tube. The distributing member, resting on the inner screen surface, forms a discharge slot communicating with the interior of the tube through a multiplicity of conduits closely spaced along the tube axis, the conduits being disconnectable from the slot with the aid of an axially slidable or rotatable shutter common to all the conduits and lodged in the distributing member. This distributing member is weighted down by the pressure of the ink in an overlying space, or by springs or fluid cushions inserted between that member and the tube.

Abstract: A dyestuff applicator, overlying an area of a movable printing screen through which dyestuff is to be fed to a substrate, comprises a horizontal supply tube which supports an axially extending dyestuff-distributing member with freedom of relative movement in a vertical axial plane of the tube. The distributing member, resting under pressure on the screen, forms a discharge slot communicating with the interior of the tube through a multiplicity of conduits closely spaced along the tube axis, the conduits being disconnectable from the slot with the aid of a slidable or rotatable shutter lodged in the distributing member and controlled by an external actuator mounted on the supply tube.

Abstract: A propellent-charge cartridge case which comprises a cartridge-case stub which has a cartridge-case wall and includes at least one part provided with a resilient gas check which can be pressed against a barrel wall. The cartridge-case wall is formed with an annular groove cut from the outside into the cartridge-case wall which weakens the cross section of the wall. A resilient insert fills the annular groove so that as gas pressure builds up within the cartridge case upon firing, the cartridge case stub is deformed in the region of the annular groove so as to reduce the size thereof and squeeze the insert out of the annular groove in gas-sealing manner against the barrel wall.

Abstract: The invention relates to an ultrasonic welding, apparatus for a flexible fluid container fabricated of synthetic thermoplastic material having a welding surface, thin walls and a rim, and closed but for a single opening for fluid-tight welding of the connecting piece into the container, which is also fabricated of synthetic thermoplastic material. A welding ring focusses the ultrasonic energy to the welding surfaces. A ring-shaped base terminates the connecting piece.

Abstract: A safety-enhancing device for use in a seat-belt equipped frame of a vehicle assures a progressively increasing set belt tension in the event of a collision and a shock reduction to the user by an upward moving stem acting on a compression spring coupled to antirelease means. The device is easily restorable to an initial position by an external handle.

Abstract: The operating speed of an electronic timepiece, whose electro-optical indicator is excited by an oscillator with a frequency harmonically related to its stepping rate, is determined by an electrostatic sensor including a monitoring plate capacitively coupled to an electrode of the indicator. The output of the sensor is a bipolar pulse train developed across a resistor defining a differentiation circuit of small time constant with the condenser formed by the monitoring plate and the electrode, the capacitance of this condenser being on the order of 1 pf or less so that the controlling oscillator is not significantly loaded by the presence of the sensor.

Abstract: A switch mechanism for an electronic timepiece which makes use of an electro-optical display element. The switch mechanism serves to effect erasure, correction and the like of the display and comprises an exteriorly operated member provided in its axial direction with a plurality of stable positions and rotatable about its axis at the stable positions and provided in its rotating sense with stable positions. An erasing switch is provided for erasing the display at the stable positions when the exteriorly operated member is rotated at one of the stable positions in its axial direction. A correction switch corrects the display at the stable position when said exteriorly operated member is rotated at at least one other stable position in its axial direction.

Abstract: A machine for scrubbing floors has a frame with an open bottom from which a lower run of an endless fabric belt projects downwardly, this belt passing around a large traction roller and several idler rollers journaled in the frame. One of the idler rollers is spring-loaded and mounted in a receptacle for water or other liquid into which the upper run of the belt dips from above before passing through a wringer constituted by a further roller and a coacting pressure roller. The traction roller is hollow and driven by a motor supported in its interior by an axle traversing one of the end faces of that roller.

Abstract: The handling dishes and like articles before washing them comprises the transport of the articles on special trays formed with bottom apertures permitting the passage therethrough of members for driving, lifting and tilting the articles by moving the members in a vertical plane. Thus, the articles are picked up from the trays and dropped onto a transfer path or another conveyor directing them to the washing means. The apparatus has retractable stop means for retaining the trays during the removal of the articles carried thereby, lever arms adapted to engage the tray apertures, and guide means for directing the thus removed dish articles to the transfer path or other conveyor.

Abstract: If a cine film is to be projected to the accompaniment of a sound track on a separate tape it is necessary to cheek that the film and the sound track are correctly coordinated. This is ensured by reading a code mark from the sound track and using it to slow or stop the motion of the film. The point at which the film motion is slowed or stopped is used to evaluate the relative position of the film with respect to the sound track and thus check that correct coordination is present. This evaluation may take place visually or automatically. In the latter case the prolonged presence of a correlation marking on the film in a sensing position can be used to signal the existence of correlation whereas the absence of such marking may energize a warning lamp or deactivate the film drive.

Abstract: A downwardly open applicator housing, surrounding and mounted on a dyestuff-supplying tube within a cylindrical printing screen, carries an elastic diaphragm which spans its lower end in a slack state so as to hang down with a convex underside under the weight of a load of dyestuff in the housing and a pair of bars bearing upon the diaphragm from above. The central region of the diaphragm, flanked by the weighting bars, has a series of axially spaced openings for the discharge of the dyestuff; a flexible but substantially inextensible reinforcing strip of low-friction material, having a longitudinal slot registering with these openings, is bonded to the underside of the diaphragm to facilitate relative sliding of the screen and seal the gap region against leakage of dyestuff onto the inner screen surface. The upper diaphragm surface may have gap-bridging elements such as threads or wires bonded thereto as additional reinforcements.

Abstract: A dyestuff applicator inside a cylindrical printing screen comprises an elongate hollow body with a bottom portion contacting the inner screen surface and an outlet for ink supplied to that body through one of two tubular extremities thereof, these extremities being clamped in respective mountings with their axes disaligned to generate stresses counteracting the forces of gravity and friction which tend to deform the outlet from its linear shape. Each end mounting may comprise a pair of axially spaced rigid rings with toroidal inner surfaces, of adjustable relative elevation, or an elongate sleeve cradled in a vertically adjustable bearing frame in which the sleeve can be immobilized at a desired inclination to the horizontal and the vertical. The sleeve may have a yieldable lining or be braced by damping springs and dashpots against oscillations of the applicator body.

Abstract: A pancratic wide-angle objective comprises a stationary negative front component in the form of a single meniscus with a convex forward surface, an axially movable intermediate component consisting of a biconvex lens, and a stationary multilens positive rear component separated from the front component by an airspace greater than the focal length of the latter. The individual focal lengths of the front, intermediate and rear components have absolute values in a ratio of approximately 4:5:3.

Abstract: Two relatively movable bodies, such as a screw and a nut, engage each other through the intermediary of an endless row of balls guided in a closed guide path including a groove formed in a surface of one body confronting the other body. The guide path further includes at least one substantially prismatic bridge piece inserted in the grooved body and formed with an open-ended recess generally perpendicular to the groove, this recess communicating with one end of that groove and either with the opposite end of the same groove or with a corresponding end of a companion groove. The parallel end faces of the bridge piece are flush with opposite surfaces of the grooved body and, in the specific instances here described, are inclined with reference to the direction of the recess.

Abstract: A blow mandrel for the production of hollow bodies in a hollow blow mold, particular for the production of filled bottles sealed ready for shipment, from a length of tubing of a thermoplastic resin, having an axially displaceable blow pipe adapted to be surrounded by an edge of the mold opening. The blow mandrel comprises the aforementioned blow pipe and, at its mouth section, a sealing ring protruding outwardly beyond the circumferential surface of the blow pipe and extending in closed form in the circumferential direction of the pipe upon blowing in the region of the edge of the opening of the blow mold. The sealing ring has, on its side turned toward the mold cavity, an annular groove open in the direction of the blow-mold cavity.

Abstract: An electronic timepiece with a crystal-controlled oscillator includes a multistage frequency divider and a CMOS switching circuit inserted between the oscillator and the first divider stage. The switching circuit comprises two complementary MOSFETs, with insulated gates connected in parallel to an output lead of the oscillator, and at least one further MOSFET in series with the other two, the latter having an insulated gate connected to another output lead of the oscillator for energization in staggered relationship with the former to bring about simultaneous conduction for one brief instant per half-cycle of the generally sinusoidal oscillator voltage. With an oscillator operating at a frequency on the order of megahertz, the divider stages may form part of an upstream and a downstream frequency divider connected in cascade; the upstream divider may consist of nonbinary stages with individual step-down ratios of 3:1 or higher to minimize overall power consumption.

Abstract: A method of preparing liquid mixtures of predetermined composition, particularly beverages, which comprises the steps of dosing components of the liquid mixture on the basis of weight and evacuating a mixing container to a pressure of less than 0.5 atm. abs. Then individual components of the liquid mixture are drawn into the mixing container by means of valves controlled in succession in dosing devices from storage containers which are under higher pressure than the mixing container.

Abstract: A method for the production of spherical particles. The starting material for the particles and organic substances are used to form a liquid aqueous mix from which drops are formed. The starting material is introduced into an aqueous solution in the form of a fine powder. The solution contains condensable or curable organic substances. As the starting material a non-metal, metalloid or a compound of one of these is used.

Abstract: A ramming device for shells by means of which the kinetic energy necessary for free flight through a Chamber of a gun is imparted to a shell having a base. The device comprises a ramming lever engaging behind the base of said shell and adapted to be driven in a swinging motion around a pivot point. The latter is guided in turn over a circular path such that the end of said lever which acts on said shell passes along an at least approximately linear path parallel to the axis of the bore of a barrel of said gun.