The invention relates to a soft tissue filter arrangement in X-ray imaging of a patient's skull by means of a chefalostat, wherein a patient (P) is by means of ear plugs (5) or the like supports preferably fixed relative to imaging coordinates as well as by means of a nasion and/or forehead support (6) set in a determined position and location between an X-ray source (1) and a film (4) or the like...

A stable structure comprises two or more layers of fibre wadding. A reinforcement is placed between at least two of the layers and they are fixed together with the reinforcement at least partially enclosed between them. - The layers of fibre wadding include some thermoplastic fibres or a component in a bicomponent fibre which has a lower melting point than the remaining fibres. In an initial formi...

The wad (13), used for the production of lead cartridges, is firstly preformed by extrusion by means of a die (1) in order to give a parison (6), which is then finally shaped in a mould by blowing (7a, 7b) by means of compressed air. The compressed air is introduced by means of a needle (8) through the blowing mould into the inside of the parison (6). The expensive injection mould hitherto necessa...

alpha -Bromo diethylcarbonate is used to prepare ethylcarbonyloxyethyl esters of penicillins and caphalosporins. The amino group in ampicillin can first be protected by reaction with an acetoacetate derivative and the protecting group removed after the esterification step. alpha -Bromo diethylcarbonate can be used without an esterification catalyst and is obtained by reacting acetaldehyde with ca...

A head assembly for a vein stripping instrument is described comprising a head lockable over an enlarged portion of a vein stripper cable by means of a snap mechanism and a cap.

A head assembly for a vein stripping instrument is described comprising a head lockable over an enlarged portion of a vein stripper cable by means of a snap mechanism and a cap.

The tool is for spreading manure and has scrapers pivotably attached to a mechanism moving backwards and forwards and running parallel to a conveyor belt. Stops work with the scrapers, causing them to swing outwards when the mechanism moves in the forward feed direction. - The stops are formed as pins with a bevelled side forming a plane inclined towards the belt surface. Thus, a scraper first mee...

Device for sowing seeds, made as a one-handed implement especially for pressing down forest seeds in the ground, comprised of a lengthwise steel tube (2) also forming a seed magazine. The tube is equipped in its upper end with a grip friendly removable handle (1) for filling of seeds which in its lower end are fed out by a rotating feeder disc (4) in gradual advancement of a hook spring (6) made i...

A stable structure comprises two or more layers of fibre wadding. A reinforcement is placed between at least two of the layers and they are fixed together with the reinforcement at least partially enclosed between them. - The layers of fibre wadding include some thermoplastic fibres or a component in a bicomponent fibre which has a lower melting point than the remaining fibres. In an initial formi...

The insole comprises two layers, the lower one having a recess in which is placed a stabilising element. Layers include thermoplastic fibres, some of which have a lower m.pt. than the others, e.g. polypropylene. Bicomponent fibres can be used in which one component has a lower m.pt. than the other fibres. The two layers as fibrous sheets can be fused together by heating above the softening point o...