Compounds of the general formula; (wherein R represents -CH(CH2OH)2 or -CH2CH(OH)CH2OH) possess a package of favourable parameters which render them of particular use not only in all forms of intravascular visualisation but also in myelography. The compounds are prepared by reaction of the corresponding 5-monoacetylamino compound with one or more reagents effective to introduce the 2-hydrox...

An electrically heated vaporizer comprises a base and an annular container removably mounted thereon. The base has means for connection to an electrical power supply and includes a broad lower portion and a narrower upper portion. The lower and upper base portions constitute an enclosed housing wherein an electrical resistance heating means is mounted and connected to the connection means. The con...

The plate electrodes of storage batteries having large vertical dimensions are made up of two or more vertically spaced plate segments. Connectors are provided which link these segments mechanically together, and which connect them electrically in parallel.

Compounds of the general formula; (wherein R represents -CH(CH2OH)2 or -CH2CH(OH)CH2OH) possess a package of favourable parameters which render them of particular use not only in all forms of intravascular visualisation but also in myelography. The compounds are prepared by reaction of the corresponding 5-monoacetylamino compound with one or more reagents effective to introduce the 2-hydrox...

N,N-disubstituted alanine derivatives of the formula WHEREIN X is H or Cl and Y represents a carboxyl group or the salts or alkyl esters thereof, and compositions containing them are useful for controlling undesirable plant growth.

1306334 Acylated carbinols BAYER AG 29 June 1971 [29 June 1970 3 Mareh 1971] 30415/71 Heading C2C [Also in Division A5] Acylated carbinols of the general formula in which X is bromine, chlorine or fluorine and R is methyl, ethyl, propyl, isopropyl, butyl, tertiary butyl or 1-ethylpropyl provided that X is not chlorine when R is methyl, may be prepared according to known processes, especially by ac...

1414019 Building tyres GOODYEAR TIRE & RUBBER CO 1 June 1973 [28 June 1972] 26341/73 Heading B7C In a tyre building system, preformed endless carcass bands, e.g. of radial, metal cords, and tread and inextensible belt assemblies are transferred in succession from their respective building machines A, C by respective carriers 130, 180 to a radially expansible tyre shaping drum B40 when the latter ...

1301812 N-Benzyl-N-isopropyI amides GULF RESEARCH & DEVELOPMENT CO 19 April 1971 [6 Feb 1970 9 Nov 1970 8 Dec 1970] 21691/71 Heading C2C The invention comprises compounds having the general formula in which R is selected from t-butyl and groups of the formula in which X and X1are selected from chloro, bromo, methyl and methoxy with the proviso that one of, but not both of, X and X1

PURPOSE:To set an on-ground path with much degree of freedom by changing selectively the form of steering for the straight line running by means of an inductive signal and that for a curved path running by means of an automonous signal respectively. CONSTITUTION:A prescribed phase angle signal is outputted from left and right controllers 141, 142, and when an equal current flows to both left and r...

PURPOSE:To prevent malfunction of a logical circuit in advance, by connecting plural FFs having a gate in its clock circuit in series so as to detect immediately racing when the racing is generated. CONSTITUTION:A control circuit 9 of a clock gate controls circuits so that clock gates such as AND circuits 11, 12 are not opened at the same time. If ''1'' appears on signal lines E and F at the same ...

PURPOSE:To detect incorrect instruction of a program, by executing an internal interruption instruction in a software program by a central processing unit, it the execution step of the software program loaded to a main storage device runs away externally. CONSTITUTION:An initializing program of the main storage device 2 is started and the main storage device 2 is initialized with the power ON or r...

A continuous process for producing methacrylic acid ester from methacrylic acid and a lower alcohol containing 1 to 3 carbon atoms utilizing sulfuric acid as a catalyst and a hydrophobic solvent to assist in the formation of a heterogeneous reaction mixture, the process being particularly characterized by the steps of reconcentrating and reusing the sulfuric acid.

An auxiliary controlled valve including a valve body (8) displaceable against a valve seat (9) disposed in a drilling string (6) to produce pressure pulses in drilling fluid renders possible a selective closing or opening of a low-resistance transmission section (12) which lies parallel to a main throttle section (10). The valve has a central passage which permits the passage of measuring instrume...

A borehole is surveyed by positioning at the mouth of the borehole a survey instrument having a casing and a three-axis rate gyroscope unit mounted within the casing, and sensing at least two components of gravity in at least two mutually transverse directions with respect to the survey instrument by means of a gravity sensor unit. The survey instrument is then moved along the borehole with the st...

PURPOSE:To absorb floating-up due to the difference of line lengths before and after the heat treatment by providing a helical groove to the surface of heat resistant metal drum and executing the heat treatment after winding a metal composite line while it is inserted into the groove. CONSTITUTION:A helical groove having the width and depth enough for accommodating metal composite line forming a s...

The invention relates to a detergent composition, preferably for cleaning the skin, which comprises one or more synthetic surfactants and is characterized in that aluminium acetotartrate is added to it to counteract the irritation and cutaneous complaints of persons with a sensitive skin.

A process for treating organically contaminated liquid hazardous waste comprises adding to the waste Portland cement, fly ash and activated carbon.

Mortars and concretes are formulated from hydraulic binders, and are adapted for more rapid setting and hardening in cold weather, such formulations including the admixture of hydraulic binder, aggregates and water, and such formulations being characterized in that they include: (a) a water-soluble dispersant/water-reducing agent; (b) an inorganic basic agent selected from the group comprising the...