Abstract: A recycling furnace is provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy. The furnace includes a switching facility for alternating operation of two burning-off chambers of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. A continuous conveyor for dosing of liquids or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion, preferably a temperature sensor. A single waste gas treatment facility is used for thermal post-combustion for the two furnace chambers.

Abstract: A recycling furnace is provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy. The furnace includes a switching facility for alternating operation of two burning-off chambers of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. A continuous conveyor for dosing of liquids or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion, preferably a temperature sensor. A single waste gas treatment facility is used for thermal post-combustion for the two furnace chambers.

Abstract: A recycling furnace and method are provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy, the furnace including a switching facility for alternating operation of a burning-off chamber of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. Steps (A) and (B) are carried out sequentially in the furnace chamber, wherein neither the batch is changed, nor the furnace is opened. After the end of step (A) is determined, step (B) proceeds right after the pyrolysis or carbonization by supplying air or oxygen.

Abstract: A recycling furnace and method are provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy, the furnace including a switching facility for alternating operation of a burning-off chamber of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. Steps (A) and (B) are carried out sequentially in the furnace chamber, wherein neither the batch is changed, nor the furnace is opened. After the end of step (A) is determined, step (B) proceeds right after the pyrolysis or carbonization by supplying air or oxygen.

Abstract: A method for extracting osmium and ruthenium from noble metal concentrates, by: a) treatment of a noble metal concentrate containing osmium and ruthenium with nitric acid at a maximum temperature of about T=+30° C., b) heating of the resultant suspension/solution to a minimum temperature of about T=+85° C.; c) capturing the resultant osmium tetroxide in an absorption solution; d) treatment of the suspension/solution having a temperature of about T=+20° C. to 30° C. with hydroxide at a maximum reaction temperature of about T=+65° C.; and e) treatment of the alkaline suspension/solution from step d) with a substance for the oxidizing leaching of the ruthenium.

Abstract: Ruthenium is separated from noble metal solutions, by: a) heating a noble metal solution containing ruthenium to a temperature of T=+50° C. to T=+65° C., the H+ concentration and Cl− concentration are greater than 1 mol/l each; b) addition of chlorate, the resulting suspension/solution having a temperature of T=+50° C. to T=+65° C., heating the suspension solution to T=+80° C. to T=+90° C. and passing a carrier gas through the suspension/solution and capturing the resultant ruthenium tetroxide; c) addition of bromate at a pH of 1 to 3, the resultant suspension/solution having a temperature T=+60° C. to T=+95° C., and passing a carrier gas through the suspension solution and capturing the resultant ruthenium tetroxide.

Abstract: Ruthenium is separated from noble metal solutions, by:

Abstract: A method for extracting osmium and ruthenium from noble metal concentrates, by:

Abstract: The present invention provides a connection system for connecting a cannula to a device, the system involving a chamber operably coupled to the device, wherein the chamber has two apertures and contains a flexible substance, one of the apertures operably coupled to the device and both apertures operably linked by a channel defined in the flexible substance, the cannula having a cannula diameter and an end with a larger diameter than said cannula diameter.

Abstract: A device for axially clamping a disc-shaped tool on a flange of a driven spindle with a threaded end, includes a clamping nut, a clamping disc supported on the clamping nut for biasing the disc against the flange and connected with the clamping nut for joint rotation therewith and axial displacement relative thereto, and supporting bodies arranged between the clamping nut and the clamping disc. An actuating member is located between the clamping nut and the clamping disc, and rolling bodies are displaceable along guide paths defined by guide tracks of the supporting bodies and guide track means of the actuating member for radially loading the supporting bodies. An insert member is supported between the clamping nut and the clamping disc and includes a plurality of stops projecting into the guide paths.

Abstract: A test strip evaluating instrument is used for testing of multiple test strips, and has a transport and positioning device which transports the test strips at right angles to their longitudinal direction from a test strip feed area along a transport path to a disposal area. At least one measuring station with an optical measuring unit is arranged on the transport path. Rails, on which the test strips slide, run along the transport path. The test strips are transported in a step-wise manner by at least two rows of cam elements following one another in the transport direction, and these two rows of cam elements move synchronously with one another in a periodically recurring movement path.

Abstract: A brake booster in which a servo piston is slidably supported in a housing. The transmission of a brake force is effected via a piston rod protruding into the housing, and a work chamber is formed between the piston rod and the servo piston. After the opening of a valve, this work chamber can be filled with brake fluid from a reservoir or supply container via a pump or the like. A return line also leads out of the work chamber back to the supply container, via a further valve. To improve the closing or sealing behavior of the valves, the first valve is to be embodied for admitting the brake fluid from a valve cone, or its shoulder, the valve cone extending axially in a blind bore of the servo piston, and a valve seat formed out of a valve bushing. The second valve is likewise embodied as a seat valve, and an element connected with the valve cone cooperates with an element connected with the piston rod.

Abstract: Not readily dissolvable nuclear fuel is dissolved in an airtight closed vessel or autoclave. Nitric acid is evaporated and condensed in the vessel and the nitric acid condensate trickles over the nuclear fuel disposed outside of the nitric acid undergoing evaporation.

Abstract: The invention relates to a brake pressure control valve which contains a brake pressure build-up valve. The brake pressure build-up valve comprises a pressure compensated seat valve. A second valve member, a rod between the two valve members and a tubular compensating piston are provided to produce pressure compensation at the valve member. The compensating piston which encloses the rod is displaceable relative to the latter and comprises a second valve seat at its end directed towards the second valve member. A sealing ring also encloses the tubular compensating piston. When the first valve member is raised from its valve seat, the second valve member can precede the tubular compensating piston, thereby preventing friction forces between this compensating piston and its sealing ring from being disruptive during opening of the seat valve. Also provided is a valve slide which only uncovers flow bores when the seat valve is opened for the purpose of increasing brake pressure.

Abstract: A lightweight ball-and-socket joint that is for instance capable of being assembled by a robot. The ball-and-socket joint has a ball head, a CIRCLIP and an outer structural part forming a socket, in which there is a circumferential groove the bottom of which forms a support face for the circlip. The support face is substantially defined by a hollow cone and surrounds the CIRCLIP like a jacket, and a flare angle of the support face opens toward the center of the ball head. The CIRCLIP presses with radial bias against the support face and therefore migrates in the direction of its largest diameter and hence toward the center of the ball head until it rests thereon.

Abstract: A self-securing ball-and-socket joint which has a ball head integrally formed on a rod, an outer structural part having a bore that pivotably receives the ball head and a radially elastic CIRCLIP brand retaining ring as well as a separate auxiliary assembly tool for the retaining ring. In the outer structural part beside the center of the ball head, there is a circumferential groove having a support face for the retaining ring. When the ball-and-socket joint is assembled, the retaining ring is first inserted into the circumferential groove. Then the auxiliary assembly tool is inserted into the bore. At its initial end the auxiliary assembly tool is embodied in the manner of a centering and expansion tool, so that it aligns the retaining ring with respect to the circumferential groove and finally forces it into this groove. Upon further displacement of the auxiliary assembly tool, the retaining ring snaps home into a detent notch provided on the circumference of the auxiliary assembly tool.

Abstract: A spring according to this invention has a core of an elastically deformable but substantially incompressible material and having two axially spaced end surfaces operatively engageable with objects to be relatively resiliently mounted. Thus when the two bodies engaging the end surfaces move toward each other the core swells radially. An annular belt formed of an elastic synthetic resin snugly surrounds the core between its ends. The belt can be lapped or can be a single unitary ring. It may also be formed of a plurality of independent layers having ends provided with a heat-shrunk clip for securing the ends together. To soften the initial spring characteristic the belt is corrugated and has peaks engaging the core and valleys normally not engaging the core. The corrugations may run longitudinally or transversely.

Abstract: A ball joint that cannot be disassembled intended for use in a brake booster. The ball joint comprises a first, substantially rod-like component, which has a ball head; a second component, which has an insertion opening, which narrows in funnel-like fashion in the area of its beginning and is provided with an annular groove spaced apart from the beginning, a radially elastic securing ring, which is insertable into the insertion opening and lockable into place in the annular groove, as well as a sleeve, which has an annular groove for receiving the securing ring during the insertion into the insertion opening until it locks into place in the detent provided by the annular groove of the outer component. The sleeve surrounds the ball head in an articulated and undetachable manner.

Abstract: Recovering fission material from solid raw wastes and producing a space-saving product which can be committed to ultimate storage by the following steps:(a) a comminution of the raw wastes to a grain size of about 5 mm(b) dissolution thereof at elevated temperature in an organic solvent until a concentration of about 10 percent by weight is reached(c) separation of insoluble raw waste particles larger than 1 mm.(d) separation of the undissolved fission material content remaining in the polymer solution by means of a centrifuge(e) evaporation and condensation of the solvents for return into the dissolving process according to (b)(f) embedding the waste component from (c) into the remaining plastic melt(g) drawing-off the melt and solidification thereof in storage containers.

Abstract: A stencil plate provides the outline of front, side and top views of a normalized human body in outline form, pivot holes corresponding to each joint and additional holes indicating the natural range of swing about each joint, particularly in the top view, some showing foreshortening as the result of holding the arm at an inclination to the horizontal plane provided. By swinging the stencil plate at a pivot point between the stages of drawing the outline, various body attitudes may be drawn. With such stencils, the layout of counters, consoles, equipment, etc., at a workplace may be suited to the operating personnel.