A separator plate for the negative electrode of a lead-acid battery comprising a molded, synthetic plastic wall or planar member of generally rectangular configuration. A pair of like separator plates are vertically oriented in the battery casing to sandwich the negative electrode therebetween including juxtaposed retention mats common in such a negative electrode assembly. The sandwich provides a...

This invention relates to a novel class of hydroxamic acid based collagenase inhibitor derivatives of the formula wherein R<1> is C1-C6 alkyl; R<2> is C1-C6 alkyl, benzyl, hydroxybenzyl, benzyloxybenzyl, (C1-C6 alkoxy)benzyl, or benzyloxy(C1-C6 alkyl); a is a chiral center with optional R or S stereochemistry; A is a -(@HR<3>-@HR<4>)- group or a -(CR<3> = CR<4>)- group wherein b and c ...

A hydraulic control apparatus is employed in a stepless transmission in which an endless belt is stretched between and wrapped around a pair of pulleys and the velocity ratio between input and output shafts is changed by varying the width of a groove defined in each of the pulleys. Hydraulic pressure supplied from a hydraulic pressure supply source is reduced to necessary levels by first and secon...

The subject matter of the invention is a lead accumulator having a housing (1) holding a plurality of cells and having a cover (3) which closes the housing (1), and in which a cavity (10) is constructed between a lower cover (3') and an upper cover (3''), arranged at a distance therefrom, for acid to be deposited. The cover (3) is provided with a degassing opening (14), having a flameproof device ...

Certain relief parts (11, 13) of a tread (1) for a radial tyre, are provided at least with incisions (41, 42, 43) having, in cross-section, outlines in the form of forks, and at least two prongs (41B, 41C) extending from a single portion (41A), the number of incisions (41) on the relief part (12, 13) being multiplied by a factor of at least 1.5 from the depth (h1) of the two-pronged incision (41)....

A crystalline titaniumsilicate molecular sieve zeolite having a pore size of approximately 3-5 Angstrom units and a composition in terms of mole ratios of oxides as follows: 1.0 +/- 0.25 M2/nO : TiO2 : y SiO2 : z H2O wherein M is at least one cation having a valence of n, y is from 1.0 to 100, and z is from 0 to 100, said zeolite having a characteristic X-ray powder diffraction pattern. These zeo...

PURPOSE:To prevent the destruction of the subject device and to efficiently supply a microwave by equipping the device with a control means to control the oscillation output of a microwave oscillating means according to whether reflectivity obtained by a reflectivity calculating means is more than a prescribed value or not. CONSTITUTION:For a control part 7, the reflectivity is compared with two p...

A closure containing an internalized microbial filter (52) for use in enteral delivery set assemblies. The closure comprises a generally cylindrical side wall (15), a planar top surface (45) having first and second projections (25, 49), the first projection (25) being associated with the spikable membrane (28) while the second projection (49) is associated with a filter (52) and with means (55) to...

A closure containing an internalized microbial filter for use in entera l delivery set assemblies. The closure comprises a generally cylindrical side wall, a planar top surface having first and second projections, the first projection being associated with the spikable membrane while the second projection is associated with a filter and with means to limit air access to the filter. The closure als...

A thermoformable fibrous mat comprises (i) 0-95 wt.% pref. 10-90 wt.% of glass fibres at least 5 wt.% of which have an average fibre dia. of at least 6 microns, (ii) 0-95 wt.% pref. 10-90 wt.% of organic fibres, and (iii) 5-90 wt.% pref. 15-90 wt.% of thermpolastic binder. The fibres are mixed and subsequently mixed with binder, followed by drying. The mat has a good flexibility and is useful as f...

PURPOSE:To make it possible to stably obtain the title film having excellent characteristics over wide area in good reproducibility by repeatedly laminating three laminate films on a substrate in order of Ba, Y2O3 and Cu so as to have a prescribed film thickness and then heating the laminate in O2 atmosphere. CONSTITUTION:Beams 2 are outputted under O2 atmosphere at about 1X10<-4>Torr on a substra...

PURPOSE:To make possible to form oxide superconductive material of a construction having high Tc and Jc by adding transition metal elements other than composing elements of oxide superconductor in specific ratio. CONSTITUTION:At least one transition metal other than composing elements of the above-mentioned oxide superconductor is added to said oxide superconductive material so as to have 1-4at% (...

PURPOSE:To make possible to keep stable superconductive state by compounding silver in Y-Ba-Cu-O system superconductive ceramics and to make possible to improve adhesion between superconductive ceramics and sheath material by inserting said silver-containing superconductive ceramics into sheath material of silver. CONSTITUTION:Said superconductive ceramics is a substance exhibiting superconducting...

A phenol foam and a method for preparing substantially closed cell shaped resins on the basis of the condensation product between, on the one hand an either or not substituted phenol and/or phenol derivative and, on the other hand an aldehyde by using a blowing means for forming a hard phenol foam, whereby a physical blowing means comprising chloropropane is used.

The fine machining of hard bevel gears is performed - apart from the inaccurate process of lapping - by hobbing with carbide tools or by grinding. The first-mentioned method is relatively expensive and often brings problems in the development of the tooth bearing (contact pattern). Grinding is a very economical method but ground bevel gears tend to excite noise. In order to exploit the advantages ...

Bead-form or spherical polyvinyl alcohol particles are obtained from polyvinyl alcohol by suspending dissolved PVAL in an organic phase which is miscible with the solution, and cooling the suspension or spraying it into a precooled organic phase. The particles are suitable for the preparation of support media for chromatographic purposes and for the immobilisation of biomolecules.

Expandable styrene polymers formed from 50 to 83% by weight of polystyrene and from 17 to 50% by weight of styrene-soluble styreneacrylonitrile copolymer having a total acrylonitrile content of not less than 5% by weight, containing from 3 to 10% by weight of a C3-C6-hydrocarbon with or without customary additives, are notable for high oil resistance and can be prepared by suspension polymerizatio...

A servo control device comprises a motor and continuously acting friction device, which is coupled to the output shaft of the motor and arranged in a housing having an aperture through which the motor output shaft extends. The housing is mounted so as to float radially in a mounting which is provided for it in a casing. Resilient tongues are provided so as to act between the housing and the mounti...