Abstract: Transmitter for distributing data signals, characterised in that it is provided with receiving means for collecting one or several data signals, a control unit (5) and a transmitting unit (3) connected thereto for transmitting an above-mentioned data signal via a network to one or several addressable receivers (6) from a series of pre-selected users, after the above-mentioned control unit (5) has received a starting signal to this end.

Abstract: The present invention provides a concentrated dampening solution for use in a lithographic printing process having a pH between 3 and 6 and comprising a water-soluble organic solvent, a phosphate salt and a transparent pigment, characterized in that said transparent pigment is a modified silica in which the silica particles have a number average size of 0.003 to 0.100 &mgr;m and in which the silica particles are coated with chemically combined atoms of an amphoteric metal which forms an insoluble silicate at a pH between 5 and 12, said metal atoms being chemically bound through oxygen atoms to silicon atoms in the surface of said particles, and the amount of said metal being such that: Gram atoms M/Gram atoms Si=A/1250 to A/250000 where M is the metal and A is the surface area of the particles of the silica sol expressed in m2/g.

Abstract: The present invention provides a concentrated dampening solution for use in a lithographic printing process having a pH between 3 and 6 and comprising a water-soluble organic solvent, a phosphate salt and a transparent pigment in an amount between 1 g/l and 30 g/l, characterized in that said concentrated dampening solution further contains a total concentration of citrate anions between 0.5 mmole and 25 mmole/l.

Abstract: The general object of this invention relates to the use of the inner space of the handle of a vacuum cleaner for storing the electrical cord, switch and plug of said appliance.Another object of this method consists in the use of a coiled electrical appliance cord, which can easily be stored inside the handle of a vacuum cleaner.Another object of this method is a specially designed electrical plug, which is used as a closure cap on top of the upper end of the handle of a vacuum cleaner, after that the coiled electrical cord has been stored inside said handle.Still another object of this method is a specially designed electrical switch, which is used as a closure cap on top of the upper end of the handle of a vacuum cleaner, while the appliance is being used and after that the electrical plug has been removed from the top of the handle and said coiled electrical cord has been pulled out of said handle.

Abstract: A method is described for preparing an .alpha.-substituted-.alpha.-acylacetamide wherein an .alpha.-acyl-.alpha.-halo-acetamide is allowed to react with an organic compound with pKa between 7 and 12 in a medium of an aprotic solvent and in the presence of a tetraalkylguanidine as basic condensing agent.