Partially aromatic copolyamides (I) comprising the following monomer components (in wt.%) and opt. additives are new: (a) hexamethylene diamine (5-30); (b) meta-xylylene diamine (10-40); (c) adipic acid (15-50); and (d) at least one aliphatic 7-10C dicarboxylic acid, pref. sebacic acid and/or azelaic acid (5-45); provided that the sum of (a) - (d) is 100 and the acid and amino gps. are present in ...

The invention relates to novel partially aromatic copolyamides on the basis of metaxylylene diamine and hexamethylene diamine as the amine components and adipic acid and at least one further dicarboxyiic acid selected from the group of aliphatic dicarboxylic acids with 7 to 10 carbon atoms as well as further additives, if required, characterized in that the copolyamide comprises the following comp...

Using a non-invasive blood pressure measuring apparatus that comprises a cuff, a pressurizing unit and bleeding valve, methods to acquire the arterial response to pulsating blood flow through an artery against the bleeding cuff's pressure are described. There are also described method for displaying in real time the entire arterial response on a display unit such as a CRT or LCD, which show the ph...

PCT No. PCT/SE91/00582 Sec. 371 Date Mar. 8, 1993 Sec. 102(e) Date Mar. 8, 1993 PCT Filed Sep. 4, 1991 PCT Pub. No. WO92/04284 PCT Pub. Date Mar. 19, 1992.A method of reducing nitrogen, phosphor, and excessive biological oxygen demand (BOD) in wastewater supplied to and passing through a granular filter bed activated with bacteria includes in the flow direction of the wastewater through the bed si...

The feed-out device is arranged on a spreader for sand, salt, etc., and at the sloping vessel feed-out opening is arranged a gap blade, between when and a bottom plate or roller material can pass. The gap blade (4) is fixed to links (8) at opposite ends articulated around a rotary point (1) and suspended at the top (3) in a chain (2) or wire. The gap blade limits the outflow of material between it...

An apparatus for winding fence material which contains a shaft, a fence supporting member with a substantially curvilinear shape attached to the first shaft, means for rotating the first shaft at a rate of from about 20 to about 50 revolutions per minute, means for removably locking the leading edge portion of the fence material within the fence supporting member and for increasing the circumferen...

PCT No. PCT/GB89/01078 Sec. 371 Date Jul. 18, 1990 Sec. 102(e) Date Jul. 18, 1990 PCT Filed Sep. 14, 1989 PCT Pub. No. WO90/03346 PCT Pub. Date Apr. 5, 1990.A hardened cement is prepared by mixing together two slurries, one comprising water and a cement component and the other comprising water, beta anhydrite and calcium oxide and or calcium hydroxide. According to the invention the cement compone...

The invention disclosed is an integrated synchronous aerobic/anaerobic bioreactor for treating waste liquids, such as pulp and paper waste water, and to methods of treating such waste liquid. The apparatus includes a bioreactor and an external aerator for injecting a controlled amount of an oxygen-containing gas into the waste liquid as it is cycled through the apparatus. An aerobic/anaerobic biof...

A method and an arrangement are disclosed for providing a nationwide dial-a-view service in which a caller desiring a given viewing selection dials an "800" dial-a-view number for ordering that selection through the telephone networking arrangement. The arrangement includes local and toll switching offices for accessing a centralized database system for providing routing instructions advantageousl...

Disclosed is an electrode suitable for the electrochemical regeneration of the co-enzymes NADH and NADPH. The electrode has imputed on its surface a mediator function which is a 3-methylene-3H-phenothiazine or a 3-meth-ylene-3H-phenoxazine compound.

A process for preparing carbonate compounds having the following formula: I! wherein R and R' are, the same or different, C1-C6 alkyl group, a C3-C6 cycloalkyl group, an optionally substituted C6-C14 aryl group, an alkylaryl group, or an arylalkyl group is proposed; the process comprises reacting urea or derivatives thereof with appropriate alcohols or phenols and preparing the carbonate co...

A collapsible tension-compression variable hull structure that collapses and stores substantially flat, yet deploys in seconds without additional parts or accessories. The tension boat design is a unique prestressed structure that strengthens the hull, reduces the need for ribs and makes the hull easily collapsible for storage and transport. Basically the present invention in it's most simple form...

The subject of the present invention is a female screw for endoauricular or intra-auricular hearing aids, consisting of a housing 1 and tips 2 of soft material of various dimension; said housing is contoured at its terminal portion so as to be able to mechanically join to said tips and, after selecting the one that is suited to the external auditory canal of the deaf person receiving the hearing a...

The use of (3-phthalidyliden) alkyl esters of carnitine and alkanoyl carnitines for preparing pharmaceutical compositions suitable for treating endotoxic shock is disclosed.

The subject of this industrial invention is an original electronic system for controlling the stability conditions of the means, mounted on a road-rail loader, active both for road traction and for rail traction. The system determines the value of the reactions of the wheels of the means moment by moment and establishes the behaviour of the machine in relation to the speed of movement of the compo...

A container with self-locking arms, especially suitable for rolling stock, is constituted by a metal frame (10), made up by standards (12) connected to one another by lower (14) and upper (16) cross-pieces, provided with two couples of lever arms (18), (18'), articulatable connected, whose fulcrum is on the inner front of said couples. To the vertical branches of each of the arm couples (18), (18'...

Fuel cell with flow of electrolyte, provided with monoplanar plates comprising a rigid external planar conductor layer and a flexible conductor layer realised by superpositioning of sheets of expanded graphite, provided with internal channels and superficial channels produced so that the flow of the reacting gases is separate and independent from that of the electrolyte.

The invention concerns a mechanism for circular knitting machines, in particular for controlling the knitting needles 3, which are controlled or commanded in the channels 2 of the needle cylinder 1 by oscillating cursor elements 12 and the cam system. The essence of the invention consists in the contour structure of the oscillating cursor element 12 and in its mechanical connection to the knitting...

A work table (1) for machine tools, machining centres and similar, for turning and milling, which is of exceptionally simple construction, comprising a platform (3) of a predetermined diameter, rotatably supported by a base (2) about an axis (X-X) and rotated by a three-phase synchronous electric motor (10) co-axial with the platform (3) and in direct contact with it.