In a process of dressing a refractory structure, a comburent gas stream carrying a mixture of particles is projected against the site to be dressed. The particle mixture comprises particles of one or more elements which is or are oxidizable to form one or more refractory oxides ("fuel particles") together with refractory oxide particles and the fuel particles are caused or allowed to burn during p...

In a process of dressing a refractory structure, a comburent gas stream carrying a mixture of particles is projected against the site to be dressed. The particle mixture comprises particles of one or more elements which is or are oxidizable to form one or more refractory oxides ("fuel particles") together with refractory oxide particles and the fuel particles are caused or allowed to burn during p...

For the validation of memory chips, especially for use in portable data-carrier arrangements of data exchange systems, a change-over can be made between the data-exchange mode and the checking mode, in particular the signal transit time of the checking data through a processing circuit serving as a validation feature.

Iron and transition metals (e.g. Cr) are removed from aluminate soln. (i.e. Al-sulfate, chloride and nitrate) by use of chelate precipitant i.e. alkyldithiocarbamate salt of formula RR1NCS2M or alkylenebisdithiocarbamate salt of formula MS2CNH(CH2)nNHCS2M. Where R and R1=H, Me, Et, or (iso) propyl, same or not, M=Na, K or NH4+, n=2-4 integer.

A stackable growing frame for receiving plant-growing boxes has on the outside of its long-side pieces 10 legs 12,13, in the form of U-profiles, which project from opposite flat-side planes of the frame. The one pair of legs 12,13 is located adjacent to the one end of the long- side pieces 10, whilst the other pair of legs 12,13 is located at a distance from the other end of the long-side pieces 1...

On a lathe, a raw workpiece is firstly produced which has the outer contour of the part structures including recesses, and a hole defining the outer periphery of the interaction space. In the turning operation, ring-shaped tracks corresp. to recesses and strap connection locations are produced. The workpiece is then clamped in a spark erosion machine where the anode plates are produced by removal ...

The shoe bottom 81) is placed in a hollow space (11) of a first mould half (20), and is fixed in position by a second mould half (6). The side surfaces (3) of the shoe bottom connect tightly against the side walls of the hollow space at a predetermined distance from the hollow space bottom surface (12), forming a closed part (15) of the hollow space. - The moulten mass is introduced into the close...

It has a longitudinal outer casing made of rubber or another polymer. The casing contains several surge diverter elements made of metal oxide varistor material, arranged between two end parts. Each end piece comprises metal electrodes. The insulated casing has projecting end parts which form a collar to support the electrode parts and the 'O' ring seal.

The invention concerns a process for high-temperature pyrolysis of biomass, in which the biomass and the coke are alternately allowed to pass through two heat magazines 12A, 12B with heating of the one heat magazine by combustion of the coke formed during the pyrolysis phase in this heat magazine, and during pyrolysis of the biomass in the other heat magazine heated during the preceding combustion...

In the supply line (1) to a centrifugal separator a throttling valve (2) regulates the flow under the control of a pressure regulator (7). The valve plunger is raised and lowered by a pneumatic piston and cylinder (3). The regulator which controls its air pressure is an overflow valve. - The control member (10) of the pressure regulator is pushed downwards against a supporting membrane (9) forming...

Several articles (1) are placed in an envelope package (5), positioned widthways to one another, and each with a part (3) emerging from the package (7). The package is hermetically or sterilely sealed between each article (6) and transversally over them. This allows an individual article to be removed from the package without disturbing the hermetic or sterile seal of the the others.

Apart from the main plate of the panel, a further plate covers with its one surface and works with the rear surface of the main plate, and members are provided to retain both plates against each other. The main plate is made from extruded, expanded polystyrene. The plate retention members can be a tape strip, plastic, metal or wooden profiles arranged around the edges of the plates, and can have t...