In processing especially washed coal mine refuse, the refuse being fractionated into various size fractions and separated off in a defined size fraction range, and the separated refuse being heat treated in an oven, processing of the coal mine refuse in an economical manner to give a hard or hardenable material having generally advantageous properties in construction technology, especially a high ...

The invention relates to purification of sewage from diethanolamine with the aid of microorganisms. The sewage to be purified is injected with the sources of phosphorus, microelements and a biocenosis of the microorganisms, genera Pseudomonas and Bacillus, selected in advance by natural selection while cultivating active sludge on nutrient media containing high concentrations of diethanolamine. Sa...

Device for conditioning organic sludges by means of biogenically produced heat.

When measuring the windscreen soiling of vehicles with optical sensors in the interior of the vehicle, the different kind of soiling, such as for example oil film, can result in incorrect measurements and thus in faulty functioning of the windscreen wipers. When crossing the sensitive sensor surface, the windscreen wipers and windscreen cleaning system are controlled with the aid of an electronic ...

Fluidized bed apparatus comprises a perforated grid to which fluidizing gas is fed by way of a plurality of tubes to fluidize particles supported on the grid. Each tube is connected to a respective blow opening of the grid by way of an erect tubular end part. Apparatus for supplying the openings of the grid with unclogging gas comprises a plurality of injection tubes, each arranged to extend withi...

A radially expandable vascular stent of the type formed of wire wound generally in a helix. Bends are provided in the wire outside its helical path which straightens as the stent is expanded. The stent preferably is made of a low memory metal such as copper alloy, titanium, or gold, and provides a radial support from within a blood vessel after implantation therein. The stent is adapted to act as ...

A welding device for producing corner joins in plastic profiles comprises two movably mounted mould halves the top sides of which are provided with a groove to receive the profiles and which mould halves have end faces which are directed towards one another and are inclined with respect to the direction of the groove at an angle corresponding to half the angle of the corner joint. Covers attached ...

A process serves to excite a parallel oscillating circuit comprising an inductance, a capacitor, a direct current source operated by a switch, and a control circuit. To minimize the energy consumption required to produce the oscillation, the switch (2) is closed and then reopened immediately the control circuit (6) has detected adequate oscillation.

The invention relates to a process and an apparatus for forming from a film web a multiplicity of hollow profiles which are joined to one another at the base. To be able to carry out cost-effectively the forming operation on continuously delivered webs of material with as few forming tools as possible, it is proposed for the webs of material to be taken up by carrying elements, which circulate at ...

The invention relates to an apparatus for mitre cutting and joining together sealing profiles for doors or windows. Two profile holders each having a profile groove, a holding cover covering the latter and an oblique end edge are arranged on a base plate. One of the two profile holders can be swivelled from a cutting position, in which the two profile grooves are in alignment with each other, into...

A communications system interconnects local Area Networks (LAN's) across broadcast simplex channels. The LAN's are connected independently and transparently of protocols above the data link layer so that the system appears to the user at a station in one Local Area Network as one large single network. A bridge interconnects the LAN's across simplex channels. The bridge is constructed to permit mor...

An attachment bracket for attaching a liquid leakage sensor to a drain opening has a funnel-shaped bracket body (1a) whose outer circumference is fitted in a liquid-tight relation inside the upper portion of the drain opening and is inclined downwardly toward a central opening. A generally circularly-cylindrical, "C"-shaped wall member (1f) is installed on the upper funnel surface of the bracket b...

A pumping system for gates wherein a sluice body liftably received in the guide grooves formed in the side walls of a water channel mounts a plurality of pumps in parallel with each other, the suction ports and the discharge ports of the pumps being located in the upstream and downstream sides, and a debris collecting device is provided in the water channel upstream the pumps. The suction ports of...

A laminated tubular body comprising; an outer layer and an inner layer which contacts the inner surface of the outer layer; wherein the outer layer is penetrated by at least one aperture and the inner layer extends into said at least one aperture.

An accessory for use in pricking depth-indicating washers on to dental reamers comprises a body constituting a receptacle. The washers which are located in the receptacle are brought into a free space of the body within which they are juxtaposed. They successively engage a notch in a movable small plate, constituting a distributor element, which enables the washer located in the notch, by transver...

An improved artificial leg has a ball and socket ankle joint (3) connecting a foot (2) to a shin member (1). The ankle joint comprises a two-part socket (5A, 5B) enclosing a part-spherical ball member (4) with an elastic sleeve (6) sandwiched between the socket and the ball member (4) to allow resilient flexion of the foot (2) relative to the shin member (1). In order to provide relatively more re...

The invention relates to an automatic two-chamber injector for mixing and injecting a medical solution. The injector comprises a barrel (11) having a first end with a receiving portion (15) for an injection needle (17), said portion being sealed prior to use, and a second end with a displaceable plunger (27). The barrel (11) comprises two chambers (29, 30) separated by a migrationproof membrane (2...

PURPOSE:To stably execute a wire bonding operation by a method wherein a tip-expanded region which is expanded with the region approaching an inner- lead tip part is installed at the inner-lead tip part of a lead frame. CONSTITUTION:A tip-expanded part 10 is shaped in such a way that a lead width approaches a design size of a conventional lead frame or is made wider than the design size as it appr...

Prefetching instructions for a pipelined CPU. A TIP (transfer and indirect prediction) table 42 predicting the target address of transfer and indirect instructions based on past history of the execution of those instructions. The prefetch mechanism forms instruction addresses and fetches instructions in parallel with the execution of previously fetched instructions by a central execution pipeline ...

PURPOSE:To attain the same scan-in/out control operation with simple constitution even if number of FFs constituting scan chain is changed by connecting a shift register comprising prescribed FFs to constitute a scan loop. CONSTITUTION:A shift clock counter circuit 13 is cleared before the start of the scan-in/out control operation. The content of the FF of scan chain is shifted the same as a conv...