The active substance of the positive electrode of an accumulator cell consists of crystalline and polycrystalline lead superoxide in which the lead has its maximum valency of 4. The polycrystalline lead superoxide is an aggregation of individual crystalline substances which are in different growth and development phases. The active substance is located, as an adhering and permanent coating layer, ...

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 ...

PURPOSE:To eliminate sudden changes of a pressure in the drum of a boiler and prevent a water-level of the drum from abnormally rising, by detecting a time when a rate of the steam pressure change comes to be above that corresponding to a rate of the allowable steam temperature change and allowing the turbine by-pass valve to work under an automatic control. CONSTITUTION:A constitution of the comb...

PURPOSE:To ensure and facilitate the packing of fine particles excellent in stability and tight preservability through a considerably simple process by filling bags with the particles deaired by compression, while making thereof by means of an intermediate member. CONSTITUTION:A film 1 is delivered in sequence while being folded on the center thereof. A square tube-shaped intermediate member 3 is ...

PURPOSE:To enhance the efficiency of the formation of a plate packed with an active material, and enable the electric current used for the formation to be saved by providing minium layers over the surface of the plate except the grid bone of the plate. CONSTITUTION:A paste 2 prepared by mixing and kneading a lead oxide and a dilute sulfuric acid, is packed in a grid base plate 1 made of either lea...

PURPOSE:To maintain constant pressurization after the first charging and independently of any change in the plate thickness by providing a pressing tool made of synthetic resin between the plate assembly and a side wall of a battery container and pressing the plate assembly through inflation of the tool with air. CONSTITUTION:A pressing tool 9 of a synthetic resin such as polyvinyl or polyethylene...

PURPOSE:To enable a paste to be sent into a packing hopper irrespective of the amount of the paste by installing rollers having a camlike cross section in the lower part of a paste storing hopper. CONSTITUTION:Rollers 7 and 7', each of which has a camlike cross section and a convex part, are installed in a storage hopper 3' in such a manner that the convex parts touch one another. A paste 1 moves ...

A domestic cutting machine, which is driven by means of an electric motor, for foodstuffs, especially a slicing machine with a revolving blade, having a casing and a cutting tool which acts on the foodstuffs to be processed and is driven by means of a driving assembly which is enclosed by its own casing and can be positively mounted on the casing in an easily releasible fashion. The object is to i...

A method and an apparatus for the radiographic recording of a patient's dentition, jaws, and skull regions invalues seating a patient in a patient chair (9) so as localize the patient in the coordinate system of the radiographic apparatus in an unequivocal position before taking the exposure for a radiograph (87). Furthermore, in accordance with the invention, the radiograph (87) is used for measu...

A vending machine comprising a frame (1) supporting a vertically movable platform (2) to carry a stack of papers, characterised by means (5, 46) to urge the platform (2) upwards at a controlled rate and pressure to maintain the topmost paper at the vending site, sensing means (31) above the stack of papers to stop movement of the platform (2) when the topmost paper is in the vending position, spik...

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 ...

PCT No. PCT/DE85/00165 Sec. 371 Date Dec. 16, 1985 Sec. 102(e) Date Dec. 16, 1985 PCT Filed May 15, 1985 PCT Pub. No. WO85/05348 PCT Pub. Date Dec. 5, 1985.A yarn supply apparatus for textile machines has a yarn drum (5) carrying a storage winding (10), to which drum the yarn (8) can be supplied at a tangent via a supply guide element, and from which drum the yarn can be drawn off, extending towar...

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 ...

The present invention provides a new low-antimony multiple-elements alloy based on lead being erpecially suitable for grid alloy of maintaince-free storage battery and new process for producing it which has overcome technological contradictions present in a long time bteween metallurgy factories and storage battery factories, has simplied processing technology, has utilized valuable metals compreh...

The utility model discloses non-mechanical transmission type water lifting machine making use of wind energy and storing wind energy. The main structure of the utility model is composed of a windmill (1), an inflator (2), an air bag (3), an orientation shunting control valve (10), an upper water barrel (18), a lower water barrel (22), an air tube (6), an air tube (7), an air tube (8), an air tube ...

A roller construction for use on the lever arms of a front jaw of a ski binding. The rollers have a central opening therethrough which has a radially enlarging characteristic from the midlength portion thereof toward the axial end thereof. That is, the diameter of the opening adjacent the axial ends is greater than the diameter of the opening at the midlength portion thereof. The interior surface ...