Abstract: A process is disclosed for the recovery of albumin in very high purity from human blood plasma by treatment of the blood plasma with polyethylene glycol (PEG) to precipitate out impurities followed by thermocoagulation of a resulting supernatant aqueous solution containing PEG and albumin in the presence of caprylic acid and isolation of the purified albumin by precipitation.

Abstract: The subject matter relates to a blank check system which includes a stack of check blanks stacked in dispenser of plastic material. Each check blank has two parts connected at a fold line; the upper part being a blank check and the lower part being a duplicate or record portion. Upon partial withdrawal of the uppermost check blank from the frame to a predetermined position, the amount of the check being drawn may be entered and the remaining balance in the account may be inscribed on the next-succeeding check blank. The check may be fully withdrawn for completion, and the balance entered will be shown on the topmost remaining check blank to thereby provide a self-reconciling system of writing checks which automatically keeps a running balance.

Abstract: A catalyst composition consisting essentially of a reaction mixture of (A) at least one member selected from the group consisting of compounds of W, Mo, Re and Ta, (B) at least one member selected from the group consisting of organometallic compounds of elements of Groups IA, IIA, IIB and IIIA of the Deming Periodic Table, and (C) at least one member selected from the group consisting of compounds of V, Cr, Mn, and elements of Groups IVB and VIII of the Deming Periodic Table, has a very high activity in the ring-opening polymerization of norbornene derivatives having at least one polar substituent selected from the group consisting of ester groups, nitrile groups, amide groups, imide groups, carboxylic acid anhydride groups and halogens. The metal atom ratio of (C)/(A) is usually 0.001-50, and the molar ratio of (B)/(A) is usually 1-10.

Abstract: The invention provides an air induction system or manifold for a multi-cylinder internal combustion engine, which is arranged in two parts, the first having portions of the induction passages for each cylinder formed therein, and the second attached to the first to form a housing therewith in communication with each of the induction passages, at least the first part being arranged so that it may be pressure die cast in manufacture.

Abstract: A new method is disclosed for recovering elemental iron and manganese present in oxide form in waste slag obtained from oxygen steel production. The metal oxides are reduced in the presence of carbon or carbon combined with a coal mine waste material and an Al.sub.2 O.sub.3 -containing additive present in the form of a silicate.

Abstract: The problem encountered with filling sample bottles with the aid of a known device, that dangerous liquids can only be manipulated by using a branch line to a closed casing, has according to the invention be solved by placing an injection needle within a cap which is fixedly connected to the process portion and has an internal surface which corresponds with the external surface of the sample bottle, which cap preferably also has a slot so that a worker can see to which extent the bottle is filled.

Abstract: Water proofing compositions containing a Reclaimed butyl rubber of used inner tube scraps as the active component have a high adhesion to cement mortar or concrete and are used for water proofing materials in buildings and civil engineering works.

Abstract: Water proofing compositions containing a Reclaimed butyl rubber of used inner tube scraps as the active component have a high adhesion to cement mortar or concrete and are used for water proofing materials in buildings and civil engineering works.

Abstract: A low pressure warning cap for a pneumatic tire air valve including a generally cylindrical body having first and second ends, a cylinder adjacent the first end, a threaded connector for attachment to a conventional air valve stem of a pneumatic tire at the second end and an acting chamber connecting with and disposed intermediate the cylinder and the threaded connector, a piston disposed in the cylinder and resiliently biased toward the acting chamber, the cylinder having an opening at the first end, a deformable diaphragm disposed across the acting chamber between the threaded connector and the enlarged end, a perforated diaphragm disposed across the cylinder adjacent the opening, an elastic sack enveloping in air tight manner the first end including the opening, and a protuberance in the threaded connector to cooperate with the valve to open the valve upon attachment of the cap to valve, whereby, at a desired tire pressure, the deformable diaphragm is deformed by air from at the desired pressure to move th

Abstract: Compounds of the formula: ##STR1## where R is H or lower alkyl and a process for the preparation thereof are disclosed. The compounds are analgesic agents.

Abstract: A centrifugal fan is treated acoustically by the provision of tuned noise absorption cavities preferably including absorbent infill between an acoustically permeable scroll and casing of the fan. Alternatively, or in addition an acoustically absorbent panel structure is provided in spaced confronting relationship with the inlet port of the fan. The panel structure has an acoustically permeable facing spaced from a rigid backing and the space may be divided into noise absorption cavities and specifically Helmholtz type absorption cavities, the absorption bands of which are broadened by including acoustic infill. It is most advantageous to provide a multiplicity of Helmholtz absorption cavities tuned to respective different center frequencies of their acoustic absorption bands.

Abstract: An extended nip press for a paper machine for removing water from a fiber web carried by a porous felt through a press zone in which the web is subjected to a pressure action. The press comprises press rolls forming at least two separate press nips and a sealing element positioned between the second rolls forming the press nips. The web, the felt and a band supporting the web and felt is passed through the press nips. A pressure medium chamber is limited by that part of the band which extends between the press nips, by the secondary rolls and the sealing element for subjecting the web to the pressure action. The press nips form rolling seals between the secondary rolls and the band.

Abstract: A pipe coupling formed by a tubular plastic member having at one end a portion of increased diameter defining an inwardly facing annular recess, and an annular sealing ring bonded therein by a foot portion substantially filling the recess and having a sealing head portion projecting partway across the interior of the coupling and secured to such foot portion by a neck portion. The seal ring configuration lends itself to injection molding of the assembly.

Abstract: A sprinkler comprises a body defining a hollow, generally cylindrical interior, a liquor inlet to the interior, and a liquid outlet from the interior which in use is located above the inlet. A member is located in the interior so as to be rotated when a liquid under pressure enters the inlet.

Abstract: A tape recorder for instructional purposes comprises a timing and signalling circuit which responds to the giving of instruction by illuminating an LED on termination of the instruction for a period equal to the duration of the interval between commencement of the instruction and illumination of the LED.

Abstract: 3-Thienyl-3-methyl-4-pentyl-2-pyridyl-ketone of the formula: ##STR1## useful as an analgesic and a process for its preparation are disclosed.

Abstract: A ball coupling for reliable connecting and releasing floating pipings of mud ships and the like nautical applications, mainly consisting of an outer ball a hollow inner ball, and a retaining member, has according to the invention been improved by embodying the retaining member in the form of pivotable ring segments which are located in a space which is delimited by flanges positioned perpendicular to the center line of the outer ball. Hereby it is achieved that the retaining means is at a fixed place due to which coupling and uncoupling of pipings can be executed much easier and quicker.

Abstract: An electric vehicle traction motor control circuit includes a main thyristor in series with the motor armature. A second thyristor is connected in series with a commutating capacitor across the main thyristor which can be switched off by firing the second thyristor so that the motor current is diverted into the commutating capacitor. A third thyristor is connected in series with an inductor across the commutating capacitor and serves when fired to reverse the voltage residing on the commutating capacitor following commutating. The reversed voltage on the capacitor is detected and is used to control upper and lower current limit signals set by a driver operable control so that the capacitor is not called upon to receive a large current when it is in a low voltage condition.

Abstract: A wheel cover locking device is provided for securing an ornamental wheel cover to the lug of the vehicle wheel. An adjustable cable tightening device is arranged beneath the wheel cover with one end of a cable secured to a wheel lug by the wheel lug nut. A rotatable locking bolt is passed through the wheel cover and threadably engages a spool to which the other end of the cable is attached whereby on rotation of the locking bolt by use of a special key, the spool will wind the cable in a tightened position to firmly secure the wheel cover to the vehicle wheel.

Abstract: An electric vehicle traction motor control circuit includes a main thyristor in series with a fuse, and the armature of the motor. A second thyristor and a commutating capacitor are connected in series across the series combination of the main thyristor and fuse. A third thyristor is connected in series with an inductor across the capacitor, and when fired, acts to reverse the voltage stored on the capacitor following commutation. The circuit is capable of operating in an emergency operating mode when the fuse is blown, by alternate firing of the second and third thyristors at a fixed frequency.