Abstract: Evaporating and cooking of toffee in a closed vessel having an inlet at the base thereof and an outlet towards the top and at one side of the vessel. A toffee premix liquor is continuously fed in the inlet and discharged through the outlet. High speed counter rotating stirrers are provided in the vessel to agitate the liquor in a vigorous and turbulent manner, such as to form the liquor into a vortex, the extremities of which are urged towards the outlet. The vigorous and turbulent agitation of the liquor assists the production of high quality toffee as a continuous process, at a relatively high throughput rate.

Abstract: A burner is disclosed for alternatively burning coal dust or oil. An annular housing includes a blower at one end thereof for directing a rotating air stream through the housing. A chamber located downstream from the blower has a plurality of outlet pipes extending downstream therefrom in an annular configuration about an atomizing nozzle and an eddy plate. An adjustable burner head is mounted on the end of each of the outlet pipes, the burner heads being arranged for optimum mixture of coal dust and air, fed from the chamber through the outlet pipes to the burner heads, with the rotating air stream passing about and through a hole in the eddy plate to insure optimum combustion. An oil ignition auxiliary burner having a nozzle between the eddy plate and the outlet end of the chamber serves to ignite the coal dust and air mixture. An atomizing nozzle for feeding atomized oil into the burner is provided as an alternative fuel source.

Abstract: The mechanism for adjusting a lumbar support of a back of an office seat, motor vehicle seat or the like, with a plate-like moulding (4) adjustable perpendicularly to the plane of the seat back serves to make the sitter occupy an anatomically correct posture, the moulding (4) supporting the sitter's back. The moulding (4) is adjusted by a spring (5) on which the moulding is disposed and is adjustable transversely by a manual control element. Moulding (4) can also be moved vertically with respect to frame (3). Spring (5) with moulding (4) is adjusted by a shaft (19) mounted for movement with its axis parallel to the plane of the seat back. Shaft (19) can be directly or indirectly coupled by transmission elements (18, 17) to a tapped collar (13) or a toothed rack (25). An indicator mechanism (40, 40a) may be provided to indicate the position of the moulding (4) at any time, a scale plate (41) being connected to the collar (13 ) and the pointer (42) being connected to a threaded pin.

Abstract: An extensible handle bar for cleaning and painting tools and the like comprises inner and outer tubes in slidable telescoping relationship, the outer tube having a pair of apertures therein containing inserts. A helically threaded nut extends over the exterior surface of the outer tube and the inserts. The outer surface of each of the inserts includes projecting thread segments which mate with the internal threads of the nut. The internal threads of the nut and the thread segments of the insert each have a conical configuration. Upon rotation of the nut in one direction on the outer tube, the inserts are depressed radially such that the inner surfaces of the inserts press against the outer surface of the inner tube to axially lock the inner and outer tubes together.

Abstract: A method of and an apparatus for actuating printing elements, particularly in matrix printers, is provided. The printing elements undergo a deflection at their free end by electronic measures. At one of their ends the printing elements are driven by at least one stationary clamped drive element, while their free end undergoes a deflection which due to the configuration of the printing element is substantially greater than the deflection of the driven end. The deflection of the free end may be measured and the measured value may be used for the abated return. The drive element operates piezoelectrically or magnetostrictively. The stationary clamping may be effected by a bracing element. Each printing element exhibits a cross section tapering towards the free end. This free end may print directly, or may actuate a further printing unit element.

Abstract: A frying pan lid is provided on which a retaining knob is secured centrically. The retaining knob is formed as a housing accommodating a short-time bell. At the retaining knob there are provided an adjusting element for the operating time of the short-time bell and an indicating element.

Abstract: A bulletproof arrangement of woven, knitted or the like fabrics comprised of highly strong fibers comprises at least one continuous material web which forms a plurality of folds which overlap one another like fish-scales. The distances between the edges of the folds are dimensioned smaller than the caliber of a high velocity projectile impacting thereupon, so that the projectile is deflected in the bulletproof arrangement in the sense of a ricochet effect and is thereby kept off an object to be protected.

Abstract: A passivated semiconductor pn junction is provided which has a high electric strength, one area being heavily doped and being very thin, in particular for radiation detectors. The pn junction has an edge zone at which a depletion zone (surface channel) is provided underneath the passivation layer.

Abstract: A novel method of treating gastrointestinal, spasmolytic and ulcerogenic disorders by the administration of amidinoureas is disclosed.

Abstract: A new class of chemical compounds and their process of preparation is described. These compounds have valuable properties as anti-secretory, anti-spasmodic, anti-ulcerogenic and anti-diarrheal agents.

Abstract: A corpuscular radiation device for producing an irradiation pattern on a kpiece by means of a beam emitted from a first radiation source and a first corpuscular-optical lens system suited for forming said beam is provided. The corpuscular-optical lens system includes means for adjusting the workpiece having opposed major surfaces, an at least partially beam-transparent reference object and a free beam passage opening. At the side of the workpiece remote from the first radiation source there is provided a second corpuscular-optical lens system including a beam switch, a second radiation source, an image receiver with a receiver surface, and a detector.

Abstract: A method and apparatus for manufacturing metal profile members of open or closed construction, especially steel profile members, wherein a continuous band-like metal material of uniform wall thickness as viewed in cross-section is continuously fed along a path where it is continuously deformed by cold- and hot-shaping procedures to produce the profile member. The profile member produced in accordance with this process has one or more differences in wall thickness at one or more predetermined points in its cross-sectional width. During the hot-shaping procedure, at least one predetermined portion of the cross-sectional width of the band-like material is heated to soften that portion after which the band-like material is passed between pairs of discs disposed on opposite sides of the heat-softened portion, the angle of the discs relative to the band-like material being adjustable to cause the heat-softened area to be stretched or compacted.

Abstract: A pusher conveyor has an endless chain or belt carried on two or more sprockets or other rotary members with parallel axes of rotation, pushers being secured to the chain or belt at regular intervals. The attachment of the pushers to the chain or belt is such that when each pusher is travelling along a straight working run of the chain or belt, a free end of the pusher projects through the plane containing the axes of the two rotary members at the ends of the working run, so that when a portion of the band carrying a pusher commences to move around the rotary member at the downstream end of the working run, the free end of the associated pusher reverses its movement to enter a complementary arcuate path.

Abstract: A method of determining the impact fracture toughness K.sub.id of construction materials, for example structural steels or plastic materials, without the need of performing a load measurement at the striking hammer is provided. The elastic response of the specimen to the impact process, i.e. the dynamic stress intensity factor versus time curve, K.sub.I.sup.dyn (t), is determined in pre-experiments. The shadow optical method of caustics in reflection with an appropriate high strength steel is utilized for establishing this impact response curve. The dynamic fracture toughness for a given constructional material is then determined by performing an impact experiment and measuring the time to fracture t.sub.f. K.sub.Id is obtained from the measured t.sub.f -value and the pre-established impact response curve which corresponds to the experimental test conditions. The presented measuring procedure is used for determining the dynamic fracture toughness of two different steels at different test temperatures.

Abstract: A hinge comprises a stationary base for mounting directly to a furniture wall and formed with a central opening, a central insert having a smaller width than the central opening, and fitted therein at the bottom of the base, each of the transverse edges of the central opening having an inwardly directed projection formed with a downwardly facing groove, each of the transverse edges of the insert having a projection engaged with the groove along one transverse edge of the opening, and an L-shaped arm having a bifurcated portion received in a pair of grooves along the longitudinal edges of the base opening, and formed with teeth engaged in the teeth formed in the longitudinal grooves of the base. A pair of screws extend through a slot defined by the bifurcated portion of the arm, and are threadedly connected with the insert, whereby the L-shaped arm is secured to the stationary base movably in four directions for fine positional adjustment relative to the base.