1. Apparatus for the aerobic biological purification of waste waters according to the combined filtration-activation method, with at least one submerged filter (1) rotating about a longitudinal axis (3) and submerged to the greater part in the waste water, which includes laminar growth bodies (33) as substrates for a so-called biological hotbed, wherein several growth bodies (33) are held mutually...

A reversible conveyor wherein transmission of power is effected by a driving source to the conveyor, the conveyor being divided into two sections, wherein intermediate rollers are thrown from a drive position to a neutral position by a unit-load-controlled sensor in order to stop the unit load. Reversibility of the conveyor track is effected by placing in each section of the conveyor two intermedi...

A measuring device has a transmitter side that is connected to a receiver side over an optical transmission link. The transmitter side receives an input measurement signal from a transducer and applies the input signal to an adder that also receives a feedback signal from the receiver side. The adder generates a comparison signal that corresponds to the difference between the input signal and the ...

Storage-stable, aqueous polysiloxane emulsions well adopted as coating compositions to impart anti-adhesiveness/water-repellency to a wide variety of substrates, e.g., paper, are comprised of an anti-adhesive/water-repellency effective amount of (A) diorganopolysiloxane oil having the formula: HO(SiR2O)nH wherein the symbols R, which may be identical or different, are each an alkyl radical contain...

PURPOSE:To obtain a rubber/fiber composite whose adhesion is favorable, by a method wherein a radical is caused to occur on the surface through plasmic treatment, over which a compound capable of performing radical polymerization, a latex compound and further rubber are imparted for vulcanization. CONSTITUTION:Plasma is applied to the surface of a fiber such as a synthetic fiber and a radical and/...

An extract component is separated from a raffinate component contained in a feed mixture by a process in which a unidirectional fluid flow system is maintained through a series of separating units through which the components travel at different rates. A component concentration distribution is established within the system of units and divided into specific zones. Feed and displacement fluid are p...

In a ring network (1) messages sent from any one of a group of stations (3) to all the remainder include an acknowledgement field (ACK) holding a count preset to equal the number of expected destination stations. Each destination station that successfully receives the message acknowledges by decreasing the count by 1; acknowledgement is withheld if an error is detected in the message or the statio...

Organosilicon compositions which cure by way of a metal-catalyzed reaction of silicon-bonded hydroxyl radicals and/or silicon-bonded olefinic hydrocarbon radicals with silicon-bonded hydrogen atoms are stabilized for hours at room temperature by the incorporation of a hydrocarbonoxyalkyl maleate. However, the stabilized compositions are rapidly curable at low elevated temperature. Liquid organopol...

A data processing apparatus includes a CPU, a memory, and logic operation hardware. When a predetermined instruction code is identified, the logic operation hardware executes an arithmetic operation using data stored in the memory, while the CPU processes the same data. The logic operation hardware then writes the result of the arithmetic operation instead of the data processed by the CPU.

A hanger for use with a conveyor for transporting pieces of limp sheet-like work material from place to place in a garment making plant or the like includes a hanger rod for attaching the hanger to a conveyor trolley and a rigid body having at least one gripper, and preferably several grippers, each for releasably holding a workpiece unit to the hanger. Each gripper is of a simple construction inc...

A sorting device comprises a plurality of elongated sorting elements (18, 20), which define passage openings for a finer proportion of the material to be sorted and which in unison form an inclined upper sorting surface, on which the material to be sorted is intended to be deposited in an area (15) intended for location at the top of the device. The device comprises first sorting elements (18), wh...

The invention relates to a cleansing composition for treating textile surfaces of interior furnishings, said composition including a liquid, foam-type or pulverulent cleanser and including benzyl benzoate as an acaricidal component as well as a solid which causes a pulverulent residue of a particle size suitable for oral ingestion by house dust mites. Water is a predominant component of a liquid c...

A connection may be formed between sealed conduits in which each conduit carries an opaque, thermoplastic wall portion preferably having a melting range above essentially 200 DEG C., preferably with the opaque thermoplastic wall portions being carried on the conduit about their periphery by transparent wall portions of the conduit. The opaque wall portions of the conduits are brought together int...

PURPOSE:To make the resin temperature in a passage uniform, extrude the resin uniformly and prevent the generation of an eccentric thickness, by making the resin passage between the die and the nipple in a crosshead eccentric except their tips and rotating the die or the nipple so as the resin of the highest temperature to occupy the largest clearance part. CONSTITUTION:The resin temperature of th...

In order to protect copper or other corrosible materials from chemical attack and interdiffusion with other metals, a coating layer, or cladding, containing Co and P is used. Electronic structures using these corrosible conductors and layers of organic dielectric often have to be heat-treated during fabrication of the structure, which leads to corrosive attack of the conductor. If these electronic...

In a process for sintering a metal member bonded to a substrate during which the metal member undergoes densification at a temperature which is different from the curing temperature of the substrate, an improvement is provided which comprises causing the densification temperature of the metal member to be closer to or identical with the curing temperature of the substrate by adding to said metal m...

N1-(1,2-cis-2-halogenocydopropyl)-substituted pyridonecarboxylic acid derivatives represented by formula (I) and the salts thereof are disclosed. These compounds have patent antibacterial activities against a wide variety of infectious bacteria, and are useful as antibacterial agents by oral or parenteral administration.

A heating element (30) is inserted into the archwire slot (2) of the tooth (5) in order to allow the adhesive surface (6) of a dental bracket (1) to become loose. Force is exerted by a pull wire (42), controlled by a force limiting spring (24), until the bracket is removed. No harm comes to the patient or the tooth.

A heat sealing apparatus for bonding plastic tubular members includes a seamless, tubular, elastic heating element encircling the plastic members. In one form, an annular inflatable bladder filled with hydraulic fluid encircles the heating element, and includes a rigid outer wall and an elastic inner wall that is bonded to the outer surface of the heating element. When the bladder is pressurized t...

A heating element (30) is inserted into the archwire slot (2) of the tooth (5) in order to allow the adhesive surface (6) of a dental bracket (1) to become loose. Force is exerted by a pull wire (42), controlled by a force limiting spring (24), until the bracket is removed. No harm comes to the patient or the tooth.