A symmetrical collimator comprises four totally reflecting surfaces 1, 1', 2, 2', arranged in the shape of a wedge, for producing a symmetrical, intensive x-ray beam with a rectangular cross section. The arrangement (shown in vertical section) of four reflecting surfaces produces an x-ray beam that is two to seven times more intense by comparison with a slit diaphragm (slotted diaphragm) system, a...

A device for mounting a plant, horizontal continuous- casting which mould can be driven in a vibrating manner in the casting direction, is described, which consists of guide units 6, 7 assigned to one another in pairs, those guide units 7 of which belonging to the mould 1 are supported displaceably on guide units 6 which belong to a stationary abutment 5. In order to create advantageous constructi...

This strainer comprises two thin sheets 2, 3 which lie one above the other and which, as a result of their shape, are capable of filtering solid constituents out of liquids, for example, and it can, moreover, adapt itself to the hollow space provided.

The invention relates to a fragmentation mine 1 having a front surface which consists essentially entirely of projectiles 13, with essentially the entire mine body 2 located behind the front surface consisting of explosive 14, and with the outline of the fragmentation mine possibly being circular. The invention is characterized in that the fragmentation mine, in particular for attacking low-flying...

The invention relates to a process for producing a metal melt in a metallurgical vessel, in particular an iron or steel melt, in which metal-containing and/or metal oxide- containing charge materials in solid and if appropriate molten form are charged to the metallurgical vessel, most of the energy which is required in order to melt and if appropriate fully reduce the charge materials being applie...

A plastic bottle for holding test tubes that contain dangerous, esp infectious substances, is produced by blow moulding a plastic blank (1) with a thread section (2). The bottle has a cap with a threshold breakage point.

A container, esp a school bag, consists of a flexible material, eg nylon, with front and rear walls (2,3) that are stitched to sides (5) and a base (4). The front and rear wall seams protrude over the sides and the base. The seam carriers have a U-shaped cross section, and lower projections. Every two sections are connected by bridging members which have different lengths.

The invention relates to a hand-rail that can be used for escalators, moving pavements. The inventive hand-rail has a C-shaped cross-section, outer layers in the form of a sliding layer and a rubber top layer for the user, a layer with tractive support elements, especially steel chords that are embedded in rubber and oriented in a longitudinal direction, and at least one respective reinforcing lay...

PCT No. PCT/AT94/00103 Sec. 371 Date Jan. 30, 1996 Sec. 102(e) Date Jan. 30, 1996 PCT Filed Jul. 29, 1994 PCT Pub. No. WO95/03992 PCT Pub. Date Feb. 9, 1995A lifting and swivelling apparatus for objects, in particular for motor vehicles and the like, includes substantially horizontally extending tie rods (28) and a clamping frame (4, 5), which can pivot about a substantially horizontal axis of the...

Device having an audio unit 23' which is assigned to an exhibit 1, provided for manual scanning, and is intended for outputting acoustic information relating to the exhibit 1. A plurality of mutually independent switch elements 24 are provided on the exhibit 1 itself in various regions thereof. The switch elements are connected to the audio unit 23', to which a headset (headphones, earphones) may ...

Process for hardening surfaces of objects made from ferritic materials, in which the surface is locally heated by means of a high-energy beam, and the heated regions are quenched by dissipation of heat to unheated regions of the object. To achieve uniform surface hardening, there is provision for the surface of the object 83 which is to be hardened to be divided into a multiplicity of substantiall...

The object of the invention is to provide an air-cooled tubular turbogenerator which, despite having a closed cooling circuit, requires a smaller cooling surface area. In order to achieve optimum cooling for the air-cooled tubular turbogenerator, the stator laminated core for the stator winding 1 has axial through-holes 9. Furthermore, a motor-powered external fan 15 and a cooling air guide 10 for...

The device has a chamber (3) connected to the interior of a conduit (2) via through passage apertures (7) and can be fed with vacuum in order to suck away a conduit (5) residual fluid remaining in the feed conduit in the area of an outlet aperture (6). A circuit sets the suction device (1) in action, e.g. feeding the chamber with vacuum, when the fluid flow through the conduit is interrupted by a ...

Compositions are described, comprising A) rigid or semi-rigid PVC having a plasticiser content of up to 20%, and B) at least one compound of formula 1, wherein X is O or S, and R is H or phenyl, with the proviso that compounds from the groups of the perchlorate compounds, glycidyl compounds, beta-diketones, beta-keto esters, dihydropyridines, polydihydro-pyridines, polyols, disaccharid...

The invention relates to a ball point pen having a housing (1) which is provided with an axial slide guide (2) for a ball point pen cartridge. Said ball point pen cartridge can be displaced between a projected writing position and a retracted inoperative position. The casing also comprises locking means for the writing position and for the inoperative position of the ball point pen cartridge (3). ...

There is described an apparatus for bundling a drafted roving (4), comprising a rotating conveying surface (3) provided with air through-holes (6) succeeding each other in direction of rotation (9), and comprising a suction means connected to the conveying surface (3) on the side facing away from the roving (4) in the vicinity of the air through-holes (6), which suction means forms a slot-like suc...

Metal matrix composite component is produced by vibrating a slip casting mould to effect simultaneous liquid separation and slip setting prior to metal pouring. Production of a metal matrix composite (MMC) , consisting of a matrix metal infiltrated porous ceramic preform component is produced by vibrating a slip casting mould to effect simultaneous liquid separation and slip setting prior to metal...

The rotary kiln has a double concentric ring seal with intervening liquid providing sealing, lubricating and cooling functions.

Low and high pressure gases are fed into a burner chamber (1) through separate supply lines (2, 3) in such a way that a suction effect is created on the low pressure gas by the high pressure gas stream. After passing through the constricted section (5) of the burner chamber, both gas streams are fed together to the burner (6). The passage cross section of the burner chamber in the constricted sect...