A heat exchanger comprises two fluidization chambers separately supplied with fluidization gas. A heat transfer medium in the form of particulate material is supplied to the first chamber which is in communication with the second chamber. The second chamber has an outlet for discharging the heat transfer medium and contains a plurality of heat exchange tubes immersed in the fluidized bed therein. ...

- 1 - HOE89/F 046 : 2,3,23-Trihydroxy-urs-12-ene and its derivatives, processes for their preparation and their use 2,3,23-Trihydroxy-urs-12-ene and its derivatives of the formula in which the substituents R1 - R5 have the given meaning can be used for the treatment and prophylaxis of cognitive disorders, cerebral vascular diseases and diseases of the central nervous system.

2046655 9009333 PCTABS00001 The present invention provides a conveyor (1) suitable for use in conveying bulk material (2), especially for the elevation of such material. The conveyor (1) comprises an endless carrier belt (3) and an endless bulk material engagement (4) having a plurality of paddles (10) with a shape corresponding to the cross section of a channel (7) defined by the carrier belt (3)...

The system comprises an AC generator, a rechargeable battery and a charging device to be fed from the AC generator and maintaining the battery charging level. The AC generator comprises a multipolar rotor wheel having permanently magnetised poles, a stator having one or more winding providing the AC current and an eccentric body driving the permanently magnetised rotor wheel. The rotor wheel, the ...

Improvement comprises substituting the hydraulic actuating cylinder of the ram by a mechanical device comprising nut fixed to the ram and a threaded rod activated by a motor. The nut is guided by a cylindrical sleeve in a casing which houses the device. The casing is also connected to the threaded rod beyond the nut, by means of axial and radial bearings. The actuating motor for the rod is housed ...

A safety belt arrangement for use in land vehicles or aircraft, for securing the occupants thereof, has at least one belt reeling device 10 with a self-locking blocking mechanism with mechanical control means 14 for moving a locking member into the blocking position which prevents the belt from being pulled out further. In order to reduce the response times for the belt reeling means, a computer 2...

The device comprises a screw (9) mounted with the possibility of axial movement and rotation in the first module (1) and in a threaded opening (8) of the shank (7) of the second module (6). According to the invention the screw pair - the screw (9) and the threaded opening (8) - is made conical, whereas the shank (7) is made elastic and in at least one cross-section has a diameter which is no small...

A harvester comprises a ground-tracking cutting mechanism which is fastened to a height-adjustable conveyor shaft to be pendulating. The reaching of limits of the range of pendulation is signalled by an initiator assembly which comprises two initiators (20S, 20H) and is associated with a shaft height initiator (26). The shaft height initiator checks the shaft movement and activates the two initiat...

Intermediate sleeve for fixing bearings into a housing, for example into a bicycle frame, this sleeve having a collar 7 via which it bears against the frontal surface of a tubular part of the housing or the like. The collar 7 has zones of weakening 13a for breaking arranged so that the frontal surface of the housing is accessible after the removal, by breaking, of the collar parts delimited by the...

A power generating optical filter specially tuned to (1) transmit at least portions of selected wavelengths of incident light and (2) generate electrical power from absorbed portions of selected wavelengths of incident light.

A process for increasing production of a plant cell secondary product, shikonin, comprises culturing plant tissure of Lithospermum erythrorhizon in M-9 medium containing absorption substance e.g. polyurethane form or silicone rubber and inducing or promoting the effluence of the plant cell secondary product. Shikonin is useful as a purple pigment for cosmetics.

This invention comprises a process for separating 2,4-toluenediamine from a feed mixture comprising 2,4-toluenediamine and at least one isomer thereof, which process comprises contacting the mixture at adsorption conditions with an adsorbent comprising a Y type zeolite cation-exchanged with a Ni or Ca cation or an X type zeolite cation-exchanged with a cation from the group Na, Ni and K, thereby s...

The invention concerns an installation tool for drawing out a reel of cable, which tool comprises a framework 1 and at least one reel 2 supported on the framework and able to revolve, which consists of end plates 3 and an intermediate piece connecting these. According to the invention the intermediate piece has an adjustable external diameter.

: A solution is to be provided by means of a method and an arrangement for disposal of the gas space contents of largevolume containers, such as tanks or the like, when emptying one tank and filling another tank with materials whose gas phase loads the environment, is harmful to the environment or is to be reclaimed as valuable material, wherein the gas space of the tank being emptied is filled wi...

A heuristic processor (10) incorporates a digital arithmetic unit (16) arranged to compute the squared norm of each member of a training data set with respect to each member of a set of centres, and to transform the squared norms in accordance with a nonlinear function to produce training ~) vectors. A systolic array (18/20) arranged for QR decomposition and least means squares processing forms co...