Abstract: The present disclosure describes a biologically active modified urokinase and high resolution crystalline forms of modified urokinase. Polynucleotides which encode modified urokinase and methods for making modified urokinase are also disclosed.

Abstract: A steering wheel has at least one covering part affixed to a steering wheel rim. At least one mechanical connecting element, in particular a clip-type connecting part, is placed between the steering wheel rim and the covering part.

Abstract: The invention relates to a steering wheel with at least one covering element, which is preferably affixed above an insert of the steering wheel rim (3). According to the invention, at least one mechanical connecting element (11), in particular a clip-type connecting part, is placed between the steering wheel (1) and the covering element (5, 6).

Abstract: A press for the production of pressed board with injection of steam utilizes press platens to which the steam is fed to the steam-feed channels from opposite sides in a collision flow, the channels communicating with steam-nozzle bores opening at the pressing surface and such that the cross section of each channel is equal to at least 60% of the total flow cross sections of the boards communicating with that channel. Before the pressing commences, the channels are through-flushed with steam to flush air from the channels and bores and to evacuate air from the pressed mat by a venturi effect.

Abstract: A press for the production of pressed board with injection of steam utilizes press platens to which the steam is fed to the steam-feed channels from opposite sides in a collision flow, the chanels communicating with steam-nozzle bores opening at the pressing surface and such that the cross section of each channel is equal to at least 60% of the total flow cross sections of the boards communicating with that channel. Before the pressing commences, the channels are through-flushed with steam to flush air from the channels and bores and to evacuate air from the pressed mat by a venturi effect.

Abstract: The apparatus for hot pressing a pressed board mat used in making chipboard panels, fiberboard panels and pressed board panels comprises a continuously operating press with a lower press belt and an upper press belt and a conveyor with at least two endless conveyor belts adjoining each other. The press has a mouth entrance in which the conveyor extends with a delivery nose directed in the feed direction up to a delivery region in the entrance. The delivery nose is movable in the vertical direction, in the transport direction and in a direction opposite to the transport direction and because of that, the delivery region is displaceable in the entrance of the press according to the thickness of the pressed board mat to be pressed.

Abstract: A process for making a composite wood panel, fiberboard or the like comprises putting a mat to be pressed between the press platens of a press, compressing the mat with heated press platens in a first compression step without feeding in steam until a density of at least 50% of that of the product panel is reached, preferably 70 to 85%, in a second compression step feeding steam with a pressure of between 1 to 3 bar through both press platens and compressing further until from 10 to 40% of the compression occuring in the first compression step (this is taken as 100%) is attained, in a third compression step interrupting the steam feed, the density attained in the second step being maintained, and subsequently compressing with a pressure of steam which is greater than the steam pressure used in the second compression step.

Abstract: A safety fuse assembly having a body of insulating material in which a fusible conductor extends embedded in a quenching medium between two electrical contacts. The assembly is provided with an electro-optical indicator connected in parallel with the fusible conductor via a high resistance circuit. To increase the fuse capacity of the safety fuse assembly, the circuit is formed as an electrically conductive, highly resistive thin layer having one or more tapping points and which acts as a voltage or current divider circuit. This makes it possible to maximize the internal volume of the fuse chamber, thereby enabling increases in the length of the fusible conductor and the amount of quenching material, whereby usage of the internal volume of the safety fuse assembly can be optimized.

Abstract: Apparatus for transporting exposed films or webs of photographic paper along a helical path through a vessel in a developing machine has a set of parallel rings mounted between and rotated by three shafts which are parallel to the axis of the helical path. The planes of the rings make acute angles with the axis of the helical path, and each ring is rotated about its own axis. The leader of a web which is fed into the space within the rings is engaged by the inner surfaces of successive rings and is transported along the helical path. During transport along such path, the web travels around a stationary or rotating twin-walled foraminous pipe which discharges a pressurized fluid whereby the fluid impinges against the emulsion-coated inner side of the web and urges the web against the inner surfaces of the rings so that the pressure of fluid assists the centrifugal force and cohesion between the web and the rings to maintain the web in the helical path.

Abstract: A mixture-compressing internal combustion engine with a combustion space arranged either in the piston or in the cylinder head and with an ignition source located in the cylinder head; the main volume of the combustion space is thereby delimited by circular arcs, as viewed in plan view, of which the circular arc located closest to the ignition source is arranged at least approximately concentrically about the ignition source; a part of the piston which is matched within this area of the cylinder head adjoins the ignition source so closely that at first a smaller portion of the charge is ignited in the gap which is formed between the cylinder head and this piston part shortly prior to the end of the compression stroke while the main portion of the charge is combusted, at the earliest, beginning with the upper dead-center position of the piston.

Abstract: A spark-ignited reciprocating-piston internal combustion engine is provided with a combustion chamber subdivided in the top dead center zone into two chambers. These two chambers are separated from one another by overlapping parts of the piston and cylinder and cylinder head when in the top dead center zone, such that when in this position a cross-connection between the chambers exist only at one position along the circumference of the piston. An ignition source is provided adjacent one circumferential end of a first of the chambers which forms a combustion duct between the ignition source and the cross connection. The ignition is controlled so as to take place only after the piston and cylinder are in respective positions separating the combustion chamber into the two chambers.

Abstract: A cassette housing has an inlet and accommodates in its interior a turntable provided with a tape-engaging hub. The turntable is rotatable about a normally upright axis in one direction to take tape up on the hub, and in the opposite direction to pay tape out from the hub. A pair of guide baffles guides the tape for travel between the inlet and the hub. An articulated band of curved band sections surrounds the hub over a portion of arc and rests freely slidably on the turntable so that when the same is rotated in take-up direction the articulated band contracts about the hub to urge tape on the same against the hub, whereas when the turntable is rotated in the pay-out direction the articulated band expands about the hub to recede outwardly from it so as to permit unobstructed paying-out of the tape.

Abstract: A web of copying material is transported on-edge through an exposure-station web guidance system provided with a masking system which includes stationary and shiftable transverse-edge framing plates. The projected image of a first longitudinal-edge reference line on the copy table supporting the original is brought into register with a corresponding reference line of the masking system. The projection scale is adjusted to cause the format-breadth of the projected image to be at most slightly smaller than the format breadth of the web, but in no event greater. The projected image of the first transverse edge of the original is brought into register with the edge of the stationary framing plate, and then that of the second transverse edge with that of the shiftable framing plate. This registration is effected by sensing infrared-light images of the dark-light transitions associated with the transverse edges of the original. An exposure is performed.

Abstract: A shell structure is pivoted outwardly of a house trailer to enlarge the floor area. The shell structure can include three sides positioned over a cabin or portion of a cabin, and the shell structure is pivotal about a horizontal axis near the level of the floor of the cabin which is mounted on the trailer frame. When pivoted outwardly, a folding slidable or extensible roof can be positioned on the upper edges of the shell structure.

Abstract: An original to be copied is fed onto the copy table of the copying machine. The receipt of the original to be copied triggers the establishment of an electrostatic holding field which holds the original flat on the copy table during the exposure operation. Performance of the exposure operation triggers disestablishment of the electrostatic holding field. The polarity of the electrostatic holding field is successively reversed.

Abstract: When measuring the velocity of fluid flow by measuring the voltage produced by magnetic induction applied to the fluid, measurement is affected by the electrochemical potential developed at the electrodes. This may be compensated by storing the total signal produced with a first value of the induction and subtracting this stored signal from the total signal produced at a second value of the induction so that the electrochemical potential cancels out.

Abstract: Exhaust valve for an internal combustion engine, of the type cooled by fluid circulation and comprising a valve head and a stem screwed into the said head. Said exhaust valve comprises intake and return ducts for the cooling liquid, which are parallel and open into a chamber in the valve head, and which are external relative to one another and substantially symmetrical with respect to the longitudinal axis of the said stem.