Abstract: A conveyor is provided in which the belt or a plurality of bands (2-36) forming a composite belt extend between free running guide rollers (38, 40). A. Drive shaft (50) runs adjacent the belt or bands and one or more pinch wheels are movable by actuators to cause the belt or bands to be driven from the drive shaft.

Abstract: The present invention relates to a dietary supplement for the support of normal cerebrovascular tone. Extracts of the feverfew plant in combination with magnesium and riboflavin, either singly or in combination provide the major therapeutic enhancement in the reduction of migraine headaches and the associated symptoms.

Abstract: A process for the synthesis of an Exochelin comprising the steps of generating L-N-[(2-benzyloxy-(benzoyl)] serine or L-N-[2-benzyloxy (benzoyl)] threonine, creating L-N-t-Boc-.epsilon.-hydroxynorleucine and reacting same to produce L-N-Boc-.epsilon.-bromonorleucine trimethylsilylethyl ester, providing a dicarboxylic acid and forming an O-benzyl methyl hydroxamate from the dicarboxylic acid, coupling the O-benzyl methyl hydroxamate with the L-N-Boc-.epsilon.-bromonorleucine trimethylsilylethyl ester to give an L-N.sup.2 -Boc-N.sup.6 -methyl,N.sup.6 -(benzyloxy) lysine 2-trimethylsilylethyl ester which incorporates the dicarboxylic acid as modified above, removing the N-tert-butoxycarbonyl protecting group from the L-N.sup.2 -Boc-N.sup.6 -methyl, N.sup.