Abstract: Tapping apparatus comprising: a body (5) suitable for being mounted on a moving element (4) of a press; a system of multiplying gears (14) having their axes parallel to the direction (F) of motion of said element, and placed on said body; a motion transforming device having a large pitch screw (26) and nut (27) for transforming the linear stroke of said element into a rotary motion which is applied to a first gear wheel of the system; and a tapping head (18) which is rotated by the last gear wheel (17) of the system and which is driven in translation by the body, said head comprising a fixed casing (32), a spindle (36) which pivots in said casing and is rotated by the last gear wheel (17) and a tool-carrying clamp (51) which is rotated by the spindle and which is capable of longitudinal displacement against pneumatic return means (F.sub.d) of adjustable force.Applicable to machine tools.

Abstract: This invention relates to compounds having the general formula: ##STR1## and their pharmaceutically acceptable acid addition salts having the formula: ##STR2## in which: R represents hydrogen or a C.sub.1-4 alkyl radical,R' represents hydrogen or a C.sub.1-4 alkyl radical,m is 0, 1, 2 or 3,n is 3, 2, 1 or 0,the sum m+n being always equal to 3, andX.sup.- represents an anion formed by a pharmaceutically acceptable acid.Said compounds are typically useful as analgesic agents and as stimulants of the sympathetic nervous system, and also as central and peripheral vasoregulator agents.