Abstract: The iontophoretic device of the present invention comprises (a) a source for providing an electrical signal, (b) an electrode mounting block having a plurality of separate openings formed therein in spaced-apart relation from one another, with each of the openings configured to receive an iontophoresis electrode, (c) a plurality of iontophoresis electrodes electrically connected to the source and capable of transmitting electrical signal, each of the iontophoresis electrodes having a skin contact surface and each of the iontophoresis electrodes being received in one of the openings formed in the electrode mounting block, (d) a signal distribution network electrically connected to both the source and each of the plurality of electrodes and configured for distributing a electrical signal to each of the plurality of electrodes, and (e) a receiver connected to the source for accepting electrical signal transmitted by the plurality of electrodes, with the receiver of sufficient capacity to simultaneously accept el

Abstract: An improved means for making up and breaking out sections of drill pipe is disclosed herein. The make-up and breakout system is adapted for drill rigs having powered rotaries and powered carriages for moving the rotary up and down the mast. A wrench is mounted to the carriage for gripping the first section of the pipe. Slips are mounted at the work table for gripping the second section of pipe to support the string of pipe and prevent its rotation. The wrench is powered independently of the rotary, and the wrench and rotary can also rotate a certain amount with respect to each other while the wrench is gripping the first section of pipe. The independent power of rotation allows the wrench to breakout the first section from the second section. It also allows the rotary to breakout the first section from the rotary while the wrench restrains the first section from rotation.

Abstract: This invention is concerned with dispersions of solids in organic liquids containing polymeric or resinous dispersing agents. The fluidity of such dispersions is greatly improved by the presence in the dispersions of a substituted ammonium salt of a colored acid wherein there are between 16 and 60 carbon atoms contained in at least 3 chains attached to the N-atom of the substituted ammonium ion. The dispersions are particularly useful for the preparation of ink and paints.

Abstract: Dyestuffs of the formulaeD--Z--O--OC--X--O).sub.y H].sub.nandD--Z--O--OC--X--O).sub.(y.sub.-1) COT].sub.nwherein D is the radical of an anthraquinone dyestuff which is attached to Z through a carbon atom of an aromatic ring present in D; Z is a divalent bridging group; n is a positive integer having a value of 1 to 4; X is a divalent saturated or unsaturated aliphatic radical containing at least 8 carbon atoms and in which there are at least 4 carbon atoms between the --CO-- and --O-- groups; T is a saturated or unsaturated aliphatic radical of from 8-20 carbon atoms and y is a positive number in the range 2-20 inclusive.A process for making the above dyestuffs and their use as dispersing agents in the stabilization of dispersions of finely divided solids.