Vinylcephalosporins of the formula (I) in which the symbols R<1>, R<2>, R<3>, R<4> and R<5> have the meaning given in the description.

Vinylcephalosporins of the formula (I) in which the symbols R<1>, R<2>, R<3>, R<4> and R<5> have the meaning given in the description.

PURPOSE:To decrease the self discharge and increase the performance of a battery left in an overdischarge state by adding alkali ion to electrolyte, using a grid current collector having a specific lead alloy for a plate, applying formation to the plate, and immersing the plate in dilute sulfuric acid to form a positive plate. CONSTITUTION:Alkali ion is added to electrolyte. A lead alloy containin...

PURPOSE:To prevent the hunting of a control system at the time of starting by controlling a driving force by a high speed driving force control means on the higher speed side than a defined vehicle speed, whereas, controlling a driving force by a low speed driving force control means on the lower speed side than said defined vehicle speed. CONSTITUTION:A driving force control unit 5 controls the d...

PURPOSE:To increase thermal conveyance capacity by smoothly performing reflux from a liquid reservoir tank to a generator, by connecting the upper part of a generator to the upper part of a liquid reservoir tank with a connecting pipe in which an on-off valve is provided and through which steam dynamic pressure produced by the generator is applied. CONSTITUTION:An operating liquid 16 is boiled and...

Device to stiffen and keep apart annular discs secured in rotation to the rotor shaft of a hammer mill. U-shaped edge elements 6 are mounted on the periphery of annular discs 2, which they straddle by their wings 11. The back 7 of one element rests on the back of the neighbouring element. Each back 7 has a recess for accommodating and rotating the hammers 4, mounted so as to be able to rotate and ...

PURPOSE:To improve detection sensitivity and to provide the titled method suitable for automation of inspection by fixing an antigen to a base and bringing a ultrafine magnetic particle into antigen-antibody reaction with the immobilized. CONSTITUTION:The specimen is fixed by effecting the antigen-antibody reaction to the antigen or antibody fixed to the base 10 and a ultrafine magnetic particle l...

PCT No. PCT/DK89/00121 Sec. 371 Date Aug. 9, 1990 Sec. 102(e) Date Aug. 9, 1990 PCT Filed May 12, 1989 PCT Pub. No. WO89/10699 PCT Pub. Date Nov. 16, 1989.An apparatus for shelling shellfish such as shrimps consists of a dosing chamber (3) and a heat treatment chamber (5) separated by a slide valve (11) and sealed by cylindrical membrane valves (7, 9). From a funnel (31) the shellfish fall down in...

In accordance with illustrative embodiments of the present invention, restriction subs (20) for use in setting cement plugs in wells include a tubular threaded adapter (35) having an internal annular recess (40), and a metal restriction sleeve (44) mounted in such recess. In one embodiment, the sleeve (44) has a corrugation (47-49) that extends into the bore of the adapter (35) to provide a deform...

Composition for painting the surface of articles made of polyolefins, characterised in that it consists of a mixture of three separate parts, namely, respectively: - a first part containing, as percentage by weight of the total: from 3 to 7 % of cellulose acetobutyrate, from 6 to 12 % of a resin from condensation of cyclic urea and aliphatic aldehyde, - from 3 to 7 % of chlorinated polyolefins...

L'INVENTION CONCERNE UN DISPOSITIF PROTECTEUR D'ARBRES DE MANOEUVRE DE FREIN A TAMBOUR DE CAMIONS OU DE REMORQUES ROUTIERES.

CE DISPOSITIF EST CONSTITUE ESSENTIELLEMENT D'UNE BAGUE PROTECTRICE 4 MONTEE DANS LE PALIER 5 DE L'ARBRE DE MANOEUVRE 1 DE LA CAME 3 D'ECARTEMENT DES MACHOIRES DE FREIN. CETTE BAGUE 4, PROLONGEE JUSQU'AU LEVIER DE MANOEUVRE 2, COMPORTE UNE GARNITURE D'ETANCHEITE 6 A...

The additive contains a highly swelling, water-insoluble, highly polymeric substance as gel former which is coated with or dispersed in a water-soluble release agent which does not cause the gel-former particles to swell. The release agent is preferably a polyethylene glycol and is employed in an amount of from 10 to 100% by weight, based on the amount of gel former.

The additive contains a highly swelling, water-insoluble, highly polymeric substance as gel former which is coated with or dispersed in a water-soluble release agent which does not cause the gel-former particles to swell. The release agent is preferably a polyethylene glycol and is employed in an amount of from 10 to 100% by weight, based on the amount of gel former.

The invention relates to a composition for blocking-out bone cavities. The hardenable composition which can be used for blocking-out bone cavities comprises at least two components consisting of an alumina or apatite powder comprising particles or a mixture of particles having a size distribution profile clustered around 1 to 3 values lying between 250 and 1,500 mu m, on the one hand, and a binde...

The presence of a body P1, P2 or similar object within a predetermined zone 1, 13 is detected automatically by image analysis. A reference image of the predetermined zone 1, 13 is stored in memory, this image being defined by Cartesian coordinates and a grey level of its points. The current image of the predetermined zone is compared continuously with its reference image while noting the points ...

A storage tank for a volatile inflammable liquid is provided with an attachment fitting to which an elbow assembly can be attached to support a tapping machine. If the tank primary vessel fails, liquid retained by a secondary containment vessel can be drained out by using the tapping machine to make a hole through the attachment fitting and vessel walls. The attachment fitting is installed, when t...

Two part silicone casting compositions for dentistry are colour coded for different classes of viscosity; for example, by dyeing the base paste a colour assigned to the respective class of viscosity and filling part of the catalyst paste dispenser (1) with a paste of the same colour (J), the remainder (K) being undyed or of a contrasting colour. The illustrated arrangement will produce a catalyst ...

The catalyst activates the setting of cements, limes and plasters and consists of colloidal sulphur in a quantity of at least 83%, sodium thiocyanate at least 0.2%, sodium thiosulphate at least 0.2%, phenol at least 0.1%, benzene not exceeding 0.3% and naphthalene not exceeding 0.4%. The method for producing this catalyst consists of the direct oxidation of hydrogen sulphide containing added napht...

1. Hardenable silicone casting material, in particular for dental applications, comprising at least two components which, upon mixing, permits a visual check of sufficient blending, its components being mixed under predetermined conditions until a colour change is achieved over the entire observable surface of the material with respect to the colour of at least one original component, characterize...