Abstract: A method for removal of large metal objects such as offshore platforms that may be embedded in or substantially immobile and lying on the seabed. The environment should be dislodged from at least a portion of the supporting pile embedded below the mud line. A liquified gas is injected into the environment in contact with the pile to embrittle the pile. Upon embrittlement, the pile is fragmented. Thereafter, the pile may be removed from the seabed.A cannister for use in the above method has a body shaped to conform to the pile or object to be fragmented and contains liquified gas to be sprayed from nozzles by a pressurized gas to chill the object to be fragmented upon embrittlement. A support is positioned on the body for raising and lowering the cannister within the pile.

Abstract: A method of creating decorative designs by blending a spackling compound with a caulking compound and thickening the mixture with dry masonry repair compound. Water is added as needed for thinning and paint is used to obtain the desired coloration. A plurality of different colored batches can be prepared so that multi-colored designs or decorations can be produced. The blend used in the method of the present invention can be shaped into almost any desired design on almost any dry surface or the designs can be created on wax paper and transferred to the final surface using uncured product as the bonding agent.

Abstract: A switch including an elongated tubular base member having a plurality of ring shaped insulators and conductors alternately mounted thereon and having threads formed in the outer surface thereof. A switching control ring having mating threads in the inner surface thereof and a conducting surface in sliding engagement with the outer surface of the ring shaped insulators and conductors so that switching action occurs as the control ring is moved axially along the structure. The elongated tubular base member operates as a housing to receive electronic circuitry therein, which circuitry may be sealed so that the assembled apparatus provides external switching for the internal circuitry of a hermetically sealed unit.

Abstract: An underwater trenching apparatus for burying pipeline and the like including a frame for positioning about the pipeline to be buried, a drive roller system operatively connected to the frame for driving the frame along the pipeline and including at least one pair of opposed rollers, each of the rollers having a curved pipe contact surface having a radius less than the radius of the pipeline to be buried and configured to grasp about 40 percent of the circumference of the pipe, the arms to which the rollers are mounted pivot about a shaft which is removably mounted to the frame, and a cutting system attached to the frame for cutting a trench, the cutting system includes at least one pair of rotating discs rotating about a horizontal axis, and having water nozzles extending out from them, the water forced out of the nozzles scoops the seabed and disperses it up, away from the bottom of the trench. The pair of discs are mounted so that they can be moved up and down as well as rotated in and out.

Abstract: Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids are useful for the treatment of hypertension.

Abstract: A method of preparing a purified ammoniated phosphoric acid composition, comprising, reacting an aqueous wet process phosphoric acid with an ammonium ion source at a N/P.sub.2 O.sub.5 weight ratio ranging from about 0.06 to about 0.15 in the presence of solid phase metal ion containing impurities for a time sufficient to precipitate the majority of the impurities in the acid, the impurity precipitation comprising at least several complex metal salts at least one of which contains magnesium, aluminum and fluorine, and obtaining the purified ammoniated phosphoric acid by separating the precipitated impurities therefrom.

Abstract: Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids are useful for the treatment of hypertension.

Abstract: An ultimate shutdown system is provided for termination of neutronic activity in a nuclear reactor. The shutdown system includes bead chains comprising spherical containers suspended on a flexible cable. The containers are comprised of mating hemispherical shells which provide a ruggedized enclosure for reactor poison material. The bead chains, normally suspended above the reactor core on storage spools, are released for downward travel upon command from an external reactor monitor. The chains are capable of horizontal movement, so as to flow around obstructions in the reactor during their downward motion.

Abstract: Supported alkali metal borohydride reagents are prepared by contacting high surface area solid support material with a solution of alkali metal borohydride in an anhydrous aprotic solvent so as to form a coating and then removing the solvent to leave a residual coating that is predominantly composed of alkali metal borohydride on the surface of the support material. Supported reagents containing for example, greater than 10 wt. % of a thin alkali metal borohydride coating, based upon total weight coating and support material, are advantageously prepared by the procedure of the invention.

Abstract: Alkali metal borohydride concentrates are prepared by dry blending alkali metal borohydride powder with a dry non-reactive plastic resin, melting and extruding the blended mixture to form an encapsulated alkali metal borohydride concentrate, and then chopping the extrusion into pellets. The pellet concentrate may then be blended into other materials.

Abstract: Alkali metal borohydride concentrates are prepared by dry blending alkali metal borohydride power with a dry non-reactive plastic resin, melting and extruding the blended mixture to form an encapsulated alkali metal borohydride concentrate, and then chopping the extrusion into pellets. The pellet concentrate may then be blended into other materials.

Abstract: Alkali metal borohydride concentrates are prepared by dry blending alkali metal borohydride powder with a dry non-reactive plastic resin, melting and extruding the blended mixture to form an encapsulated alkali metal borohydride concentrate, and then chopping the extrusion into pellets. The pellet concentrate may then be blended into other materials.

Abstract: Quaternary ammonium hydroxides are prepared by the electrolysis of quaternary ammonium halides in electrolytic cells having the anode and cathode separated by a cation exchange membrane.

Abstract: Alkali metal borohydride concentrates are prepared by dry blending alkali metal borohydride powder with a dry non-reactive plastic resin, melting and extruding the blended mixture to form an encapsulated alkali metal borohydride concentrate, and then chopping the extrusion into pellets. The pellet concentrate may then be blended into other materials.

Abstract: Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids are useful for the treatment of hypertension.

Abstract: Concentrates containing from 0.5% to 20% by weight of an alkali metal borohydride, balance essentially inert dry resinous polymer are added to plastics in amounts effective to reduce traces impurities and thereby result in improved heat and light stability.

Abstract: Carbinolamine esters of 1,2,4-triazoles are provided having the structure ##STR1## wherein R, R.sup.1, R.sup.2 and R.sup.3 are as defined herein. These compounds are useful as antiinflammatory agents.

Abstract: Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids are useful for the treatment of hypertension.

Abstract: A process for the preparation of compounds of the formula RBH.sub.3 CN wherein R is an alkali metal, a quaternary ammonium radical or a phosphonium radical wherein a compound of the formula RCN is treated with a stoichiometric amount or slightly less than a stoichiometric amount of a BH.sub.3 donor is described. The final products are useful as hydrolysis stable reductants and as synthetic intermediates.

Abstract: Phenylguanidine derivatives are provided having the structure ##STR1## wherein R is hydrogen, lower alkyl, cycloalkyl, lower alkoxy, phenyl, phenylalkyl, phenoxy, phenylalkoxy, lower alkoxyalkyl, phenoxyalkyl, alkylamino, dialkylaminoalkyl, alkylthio, phenylthio, phenylthioalkyl, and alkylthioalkyl; R.sup.1 is lower alkyl or benzyl; R.sup.2 is hydrogen, lower alkoxy carbonyl, and lower alkanoyl; R.sup.3 is lower alkyl, cycloalkylalkyl, lower alkenyl, lower alkynyl or benzyl; and n is 0 or 1. These compounds are useful as anthelmintic agents.