Abstract: Novel zinc salts, lead salts and/or calcium salts of carboxylic acids of the general formula ##STR1## where A is a radical of the formula ##STR2## Y is --CO-- or --SO.sub.2 --, X.sup.1 is C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy or halogen, X.sup.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl or halogen, X.sup.3 is hydrogen, nitro or halogen, m and n are each 1 or 2, and X.sup.1 may furthermore be hydrogen if A is a radical of the formula (III) or X.sup.3 is nitro or m is 2, in particular the basic salts of (I), are suitable as corrosion inhibitors for coating systems.

Abstract: Novel zinc, lead or zinc/lead salts of carboxylic acids of the formula ##STR1## where Y is --CO-- or --SO.sub.2 --, X is H or --NO.sub.2 and n is 1 or 2. The salts, in particular the basic salts of (I), are useful corrosion-inhibitors for coating systems, especially for aqueous or water-dilutable systems.

Abstract: A worm gear is provided having a rotary worm screw which drives a reciprocal ball nut by means of a ball chain with coacting helical channeling effecting a raceway between the worm screw and ball nut. The invention resides in providing a ball return member in the interior of the worm screw such that a smaller number of balls in the ball chain may be used than has heretofore been possible in the prior art, and wherein friction is substantially reduced by the use of a smaller ball return channel in a median plane of the ball return member connecting at its ends with radial inlet and outlet channels. A considerable reduction in friction is achieved by the use of novel plastic bushings at the entrance and exit openings into the ball return member which greatly reduces the wear on the components.

Abstract: Rack steering gear is provided wherein the rack is slidable between cushioning devices on a guide member reciprocated through the cushioning devices and which connects to the steering linkage mechanism for actuation thereof. Road shock is absorbed by the cushioning devices so as not to be transmitted to the rack and thus to the primary steering system comprising the steering wheel and the steering shaft which conventionally actuates the rack through a pinion. The cushioning devices are constructed so that minor shocks are quickly absorbed to preclude vibration and chattering.