Abstract: An apparatus for automatically slip forming concrete having a movable frame for moving in a first direction over concrete to be formed into a desired shape. The movable frame has a longitudinal centerline generally aligned with or parallel to the first direction. A crown forming structure is attached to the frame for selectively producing a desired crown on the concrete being so formed. The crown forming structure includes a left segment pivotally attached on an inner portion thereof, along an axis generally near to and aligned with or parallel to the longitudinal centerline of the movable frame. The crown forming structure also includes a right segment pivotally attached on an inner portion thereof, along an axis generally near to and aligned with or parallel to the longitudinal centerline of the movable frame. A transition adjusting device is provided for selectively raising and lowering said inner ends of the right and left segments for controlling the crown forming structure.

Abstract: The present invention relates to a process for dyeing polyamide comprisinga) one or more oxanilide U.V. absorbers (hereinafter defined as component a);b) one or more copper complexes, (hereinafter defined as component b); andc) one or more metal-free or metallized acid dyes in particular 1:2 metal complex dyes (hereinafter defined as component c) optionally together with one or more dyeing assistants.

Abstract: A rotary type nibbler comprising a spindle having a helical groove, the spindle being rotatable in a body which terminates in a flat workpiece engagement face which is at an angle with respect to the axis of rotation approximating the helix angle of the groove so that the edge of a workpiece when urged into engagement with the root of the groove will have cut from it a crescent shaped slug.

Abstract: A rotary type nibbler comprising a spindle having a helical groove, the spindle being rotatable in a bearing sleeve which terminates in a flat workpiece engagement face which is at an angle with respect to the axis of rotation approximating the helix angle of the groove so that the edge of a workpiece when urged into engagement with the root of the groove will have cut from it a crescent shaped slug.

Abstract: A precondensate obtained by reacting(A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and(B) an epihalohydrin is obtained in the form of a stable aqueous dispersion by acidifying the reaction product, optionally in the presence of a water-soluble polymer. The product is useful as an after-treatment agent to improve the fastness of dyeings on cotton, wool or silk.

Abstract: The invention provides a solution of one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and a benzophenone; and an emulsifier in an organic solvent system.The solutions of the invention are useful for providing level dyeings of polyester material particularly for use in the automotive industry.