17. In combination: means for giving an indication representative of the direction of an intruding craft from an observing craft; and means preventing the operation of said first named means as long as said direction is changing.

A method, composition and containerized product for use in preventing the disease of mastitis in dairy cows and other animals. The invention employs a homogenous disinfectant composition in the form of an aerosol spray which applies disinfectant to the teat while at the same time chilling the teat, particularly at the lower end where the teat sphincter muscle is located. Use of the present disinfectant composition, which contains an aerosol propellant such as dimethyl ether, results in chilling ...

The prevention of corrosion in a distillation apparatus used to strip gases from an aqueous medium is effected by the simultaneous circulation of two hydrocarbon streams which contain inhibitors dissolved therein, one of said streams being circulated through the apparatus while the other is circulated through an overhead line, heat exchange and separation means.

A bottle that can be used for preventing spillage when the bottle is tilted for positioning the bottle so that all of the liquid therein is received by an intended receptacle for the liquid. The bottle is made of a flexible material that may be squeezed to decrease the interior volume of the bottle, and has an elongated neck terminating in an opening that is wide enough to enable viscous liquid to pour freely therethrough from the bottle when the bottle is tilted. An airtight seal is secured to ...

Corrosion in liquid, especially aqueous systems such as cooling systems, is controlled by the addition of a vegetable tannin or a derivative thereof, a triazole, a hydroxylamine, a neutralizing amine, and a water soluble salt of a Group II metal, in particular zinc, magnesium or calcium.

A method for reducing coking in quench units is disclosed, the method being characterized by removal of the coking materials from the quench liquid employed.

A method for preventing the undesired hydrochlorination of unsaturated hydrocarbons and chlorohydrocarbons in the presence of aluminum chloride involves the addition of a material capable of preferentially inactivating the ability of the AlCl.sub.3 to catalyze hydrochlorination.

Disclosed are compositions and methods for prevented or substantially inhibiting the hemolytic activity of hemolysis inducing agents. The methods and compositions are based on the use an anionic oligosaccharide, such as polysulfated cyclodextrin, to achieve the desired reduction in hemolytic active inducing agents.

The present invention relates to a method for the prevention of cancer or the initiation and/or progression of cancer in a human comprising administration to the human a combination dosage of a cyclooxygenase (COX) inhibitor, a vitamin D.sub.3 including analogues and metabolites thereof and calcium. In a further embodiment the invention relates to the use of the combination dosage for the preparation of a medicament and to such pharmaceutical preparations. In a further aspect the invention relat...

A method of preventing migraine headaches in humans by the administration of the compound of the formula I ##STR1## or a pharmaceutically acceptable acid addition salt thereof in a non-toxic, effective therapeutic amount (calculated as base) to a human in need thereof.