Abstract: Disclosed is a machine tool collet having a collet body having a shaft for receiving a cutting tool at a forward open end thereof and a rearward open end insertable into a tool holder means, at least one first axial slit opening into the rearward open end of the shaft and at least one second axial slit opening into the forward open end of the shaft, and a transverse channel connecting the first and second axial slits to thereby provide a pathway for the flow of a fluid from the rearward open end of the shaft to the forward open end of the shaft to thereby enable the fluid to move from the cutting tool machine through the collet to the workpiece during the cutting operation.

Abstract: New anticorrosive compositions comprise:(A) an applicational medium selected from (a) surface coatings and (b) wholly or partly aqueous non-coating media,(B) as corrosion inhibitor, an effective corrosion-inhibiting amount of at least one aliphatic or cycloaliphatic mono-, di-, tri- or tetra-carboxylic acid ester or anhydride which is substituted in the aliphatic or cycloaliphatic residue by one or more groups having the formula ##STR1## in which X is oxygen, sulphur or NH; and each R, independently, is hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulphonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halogen, cyano, nitro, hydroxy, --COOH, --COOalkyl or a primary-, secondary- or tertiary amino- or carbamoyl group; or a non-toxic base addition salts of those components (B) which contain free carboxyl group.

Abstract: A corrosion-inhibiting coating composition containing(a) a film-former and(b) as the corrosion inhibitor, an effective amount of an aliphatic or cycloaliphatic mono-, di-, tri- or tetra- carboxylic acid which is substituted in its aliphatic or cycloaliphatic radical by at least one group of the formula I ##STR1## in which X is oxygen, sulfur or NH and each R independently of the others is hydrogen, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halogen, --CN, --NO.sub.2, --COOH, --COOalkyl, --OH or a primary, secondary or tertiary amino or carbamoyl group, R not being --NH.sub.2 in the case of a monocarboxylic acid in which X is sulfur, and also base addition salts of these compounds are useful as corrosion inhibitors.

Abstract: An agent for influencing plant growth, in particular a herbicidal and plant growth inhibiting agent, contains, in addition to carriers and/or other additives, at least one compound of the formula: ##STR1## or the corresponding zwitterion form in which R and R.sub.1 may be the same or different and each can be hydrogen, deuterium or an optionally substituted lower alkyl group, lower alkenyl, lower alkynyl, cycloalkyl, aryl or heterocyclic radical containing one or more oxygen, nitrogen or sulphur atoms and which may be fused to an aromatic ring, a lower alkyl group substituted by a cycloalkyl radical, a lower alkyl group substituted by an aryl radical, a lower alkyl group substituted by a heterocyclic radical as defined above, or R and R.sub.1 together form a polymethylene chain optionally interrupted by an oxygen, nitrogen or sulphur atoms, or R.sub.1 represents, together with the C(R)--N< residue to which it is attached, the atoms required to complete a heterocyclic radical; and R.sub.2 and R.sub.