baber/WOPTO huggingface dataset:
Patent ZA-891940-B (ZA)
Title: Process for synthesizing epoxidized polysulfides
Inventor: BOOTH DAVID L
IPC: C08G75/02
Filed: 1989-03-14
Abstract: An improved process for reacting a mercaptan-terminated aliphatic polysulfide resin with excess epichlorohydrin in the presence of alkali to form an epoxidized polysulfide is disclosed. The reaction takes place in the absence of a solvent such as ethyl alcohol or ether, which will form an inseparable azeotrope with epichlorohydrin and water. The reaction is carried out at a temperature and pressure sufficient to distill away epichlorohydrin and by-product water. The water and epichlorohydrin are separated and the epichlorohydrin is returned to the pot during the reaction. After the reaction is complete, the epichlorohydrin is stripped, leaving an epoxidized polysulfide, by-product sodium chloride, and residual alkali. The epoxidized polysulfide is dissolved in a work-up solvent and filtered to remove sodium chloride and alkali. Then the work-up solvent is stripped, leaving a purified product.
Patent ZA-893922-B (ZA)
Title: Diamond transistor and method of manufacture thereof
Inventor: JONES BARBARA LYNN
IPC: H01L29/16
Filed: 1989-05-24
Abstract: The invention provides a process for manufacturing an electronic device on a semiconducting substrate (10) which is transparent to light of a particular wavelength. The process includes the steps of treating the substrate to form at least one region (S,D) having a different electrical property to the substrate, and defining a conducting contact (18) for the region by selective photolithographic masking and chemical etching. A layer of photoresist material (16) deposited on one side of the substrate is subjected to light transmitted through the substrate from a light source on the other side of the substrate. The process can be used to produce a field effect transistor on a diamond substrate.
Patent ZA-894666-B (ZA)
Title: Pyrethroids and their use for controlling pests
Inventor: WOLF BERND
IPC: C07C255/39
Filed: 1989-06-20
Abstract: Benzyl esters of the formula I   <IMAGE> (I)  where R1 is methyl, ethyl, halogen, methoxy or ethoxy, R2 is alkyl, alkenyl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl, C1-C5-alkyl-substituted cycloalkyl, C1-C5-substituted cycloalkenyl, C1-C5-alkyl-substituted bicycloalkyl or C1-C5-alkyl-substituted bicycloalkenyl, R3 is hydrogen, cyano, C2-C4-alkynyl, C2-C4-alkenyl or C1-C4-alkyl, A is the carboxylate radical of an acid component typical for pyrethroids and X is hydrogen or halogen, with the proviso that R2 is not CH2-CH=CH-B when B is hydrogen, alkyl or alkenyl and at the same time R1 is methyl or halogen, and furthermore with the proviso that R2 is not methyl when R1 is methyl, their manufacture, their use for combating pests, and precursors for manufacturing the benzyl esters.
Patent ZA-895676-B (ZA)
Title: Sintered high titanium agglomerates
Inventor: HALL J S
IPC: C22B34/12
Filed: 1989-07-26
Abstract: A process for increasing the particle size of fines of a titaniferous mineral containing more than 45 % by weight of titanium. The process comprises mixing the fines with a binding agent and water to produce an agglomerate. The agglomerate is then dried and sintered.
Patent ZA-909333-B (ZA)
Title: Device for the continuous casting of thin metal strips between two rolls
Inventor: LARRECQ MICHEL M
IPC: B22D11/106
Filed: 1990-11-21
Abstract: Device for continuous casting of thin metal strips (6) between two parallel rotating rolls (2), comprising lateral faces at the ends of the rolls defining, with the rolls, the casting space for the molten metal (1), characterised in that it comprises a flat cover (7), arranged above the molten metal (1) and in the immediate vicinity of its meniscus in order to form a thermal screen which is of a size so as to cover over the entire surface of the molten metal, this cover (7) being provided with a refractory coating (8) on its face which is turned towards the molten metal and bearing on the two rolls (2). This cover forms a thermal shield or screen preventing any incipient surface solidification of the bath of molten metal (1). Advantageously, an inert gas may be injected between the meniscus (4) and the cover (7) through the latter. 
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Patent ZA-927540-B (ZA)
Title: Dispensing device for dispensing at least to fluids.
Inventor: HOLM NIELS ERIK
IPC: B05C17/005
Filed: 1992-09-30
Abstract: A dispensing device for dispensing at least two fluids comprises a housing (12,22) of a pistol-like configuration having an integral handle (50), in which a spring-biased trigger (60) is received. Within the housing (12,22) of the dispensing device (10), two syringes (80,81) are received and fixated, which syringes contain respective fluids to be accurately dispensed. Provided a cover (22) of the housing is closed, the motion of the trigger (60) relative to the handle (50) is transmitted to a toothed rack which cooperates with a propeller body (70) in a ratchet-like manner. The ratchet-like cooperation allows a uni-directional motion of the propeller body (70) and prevents a motion of the propeller body (70) in the opposite direction. Provided the cover (22) is not closed, the motion of the trigger (60) relative to the handle is not transmitted to the propeller body (70), and any unintentional dispensing of fluids from the dispensing device prior to the preparing of the dispensing device for use by closing the cover (22) is consequently prevented. <IMAGE>   <IMAGE>
Patent ZA-944380-B (ZA)
Title: Novel intermediates useful for the preparation of antihistaminic piperidine derivatives
Inventor: KRAUSS RICHARD C
IPC: C07C59/88
Filed: 1994-06-20
Abstract: The present invention is related to novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of formula (I) wherein W represents -C(=O)- or -CH(OH)-; R 1  represents hydrogen or hydroxy; R 2  represents hydrogen; R 1  and R 2  taken together form a second bond between the carbon atoms bearing R 1  and R 2 ; n is an integer of from 1 to 5; m is an integer 0 or 1; R 3  is -COOH or -COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R 1  and R 2  are taken together to form a second bond between the carbon atoms bearing R 1  and R 2  or where R 1  represented hydroxy, m is an integer 0.
Patent ZA-953639-B (ZA)
Title: Peptides derived from trifluoromethylketones process for preparing them and pharmaceutical compositions containing them
Inventor: NANTEUIL GUILLAUME DE
IPC: C07K5/02
Filed: 1995-05-05
Abstract: Peptide derivatives of trifluoromethyl ketones of formula (I), their hydrates, enantiomers, diastereoisomers, epimers, and salts are new. R1, R2 = 1-6C alkyl or 3-7C cycloalkyl; R3 = H, 1-6C alkyl or 3-7C cycloalkyl; R4 = halo, or 1-6C alkyl or alkoxy; R5 = 1-6C alkyl; X, Y = CO or SO2; n = 1, 2, or 3; p = 0 or 1; Z = S or O; A = a gp. of formula (i) or -NR6-CHR7-; A1 with the N and CH forms a 2-azabicyclo(2,2,2)octane, 2-aza bicyclo(2,2,1)heptane, perhydroindole, perhydroisoindole, indoline, isoindoline, perhydroquinoline, perhydroisoquinoline, 1,2,3,4-tetrahydroisoquinoline, 1,2,3,4-tetrahydroquinoline, cyclopenta(b)pyrrolidine, 1,3-thiazolidine, or pyrrolidine ring, R6 = H, 1-6C alkyl, 3-6C cycloalkyl, or indan-2-yl, R7 = H, or 1-6C alkyl.
Patent ZA-957370-B (ZA)
Title: Process for heating an asphalt surface and apparatus therefor
Inventor: WILEY PATRICK C
IPC: E01C23/14
Filed: 1995-09-01
Abstract: PCT No. PCT/CA95/00505 Sec. 371 Date Feb. 27, 1997 Sec. 102(e) Date Feb. 27, 1997 PCT Filed Sep. 1, 1995 PCT Pub. No. WO96/07794 PCT Pub. Date Mar. 14, 1996A process for heating an asphalt surface and an apparatus therefor. The process comprises the steps of: igniting in a burner (30) a combustible mixture comprised of a fuel (50) and oxygen (60) to produce a hot gas; and feeding the hot gas to an enclosure having a radiative face (200) disposed above the asphalt surface (280). The asphalt surface heating apparatus comprises a hot gas producing burner (30) and an enclosure (25) comprising an inlet (120) for receiving hot gas from the burner and a radiative face (200) having a plurality of apertures. The apertures in the radiative face are of a dimension such that the hot gas: (i) heats the radiative face to provide radiation heat transfer to the asphalt surface; and (ii) passes through the apertures to provide convection heat transfer to the asphalt surface.
Patent ZA-966664-B (ZA)
Title: Process for the manufacture of a food product.
Inventor: BIGGS DONALD REGINALD
IPC: A23G9/44
Filed: 1996-08-06
Abstract: A process for the manufacture of a food product comprising a wafer filled with a food core, process including the steps of: (i) shaping the food core; (ii) heating at least part of the wafer in order to provide sufficient plastic properties to the wafer to shape; and (iii) shaping the wafer around the pre-shaped food core, the food core acting as a former.
Patent ZA-981431-B (ZA)
Title: A switching system including a current-injecting disconnector integrated in a circuit breaker for a generator
Inventor: BIQUEZ FRANCOIS
IPC: H02B13/035
Filed: 1998-02-20
Abstract: The switch has several positions for separating or connecting together an assembly of generator (1), mains transformer (4) and a starter (8). It comprises a generator disconnecting switch (2) and a bar separator (3) for separating or connecting together the generator and the mains transformer, and a starting separator (9) for separating or connecting together the generator and starter. The bar separator comprise a first fixed contact (10) and a first mobile contact (11) co-operating by sliding over the first fixed contact. These two contacts are integrated within the generator disconnecting switch. The starter separator comprises a second fixed contact (13) and a second mobile contact (14) co-operating by rotation with the second fixed contact.
Patent ZA-981470-B (ZA)
Title: Structure and method for joining parts
Inventor: HJERTMAN BIRGER
IPC: F16B7/04
Filed: 1998-02-23
Abstract: The invention relates to an article of manufacture comprising a partial or complete tubular primary part defining a tube axis and having an at least partially curved circumferential wall at least partially encircling the axis; said wall comprising a joint edge, defining a) a joint line along said edge on said wall, b) a joint plane drawn to contain said joint line, c) a joining direction having at least a direction component perpendicular to said joint line and said joint plane, d) a locking plane at least partially at the surface or within a section through said wall in which both said joint line and said joining direction lie and e) a normal direction being perpendicular to said joint plane; and at least one locking structure, the improvement comprising that the locking structure includes at least one positive or negative hook structure in said locking plane, extending in the joining direction away from the joint line and having an undercut in the locking plane and that the hook structure is exposed from at least one side of the locking plane when viewed along the normal direction. The invention also relates to a method for joining such a primary part to a secondary part and joined such parts.
Patent ZA-996183-B (ZA)
Title: Hydrocarbon partial oxidation process.
Inventor: ZENG YONGXIAN
IPC: C01B3/38
Filed: 1999-09-28
Abstract: Partial oxidation of hydrocarbons particularly to produce hydrogen and carbon monoxide is carried out by a typically cyclical process which includes passing air or other gas containing oxygen through an oxygen-selective mixed conductor, typically a perovskite ceramic substance, at elevated temperature, thereby adsorbing oxygen from the air, and subsequently contacting the hot oxygen-containing ceramic substance with a hydrocarbon. During the partial oxidation reaction phase of the process, the sorbed oxygen reacts with the hydrocarbon, thereby producing the desired gas products and regenerating the adsorbent for the next cycle of the process. <IMAGE>
Patent CH-618835-B (CH)
Inventor: HATA MORINAKA
IPC: H01L41/053
Filed: 1976-12-23
Abstract: A vibrator unit for use in a timepiece comprises a vibrator mounted within a ceramic case. A glass lid is airtightly sealed to the ceramic case by means of a soldering washer soldered between opposing surface portions of the lid and case. The soldering washer consists essentially of 90Sn-10Au solder alloy which enables formation of the airtight seal at lower and/or shorter soldering temperatures than would be the case with conventional solder alloys thereby avoiding an increase in the equivalent impedance of the vibrator unit which would otherwise occur. As the equivalent impedance can be maintained at a low value, the vibrator unit can therefore be made smaller without adversely affecting the equivalent impedance which is maintained below 350 K OMEGA .
Patent GB-2357330-B (GB)
Title: Fitting for use with underground pipes
Inventor: BUHLA MICHAEL
IPC: E03B9/08
Filed: 2000-05-19
Granted: 2003-03-19
Abstract: The fitting comprises a wrench bar 4 having a cap accessible from above ground, a tube 5 surrounding the bar and a releasable coupling 3 for engaging a valve spindle. The bar may be extended by extensions, interconnection being via square sockets/releasable adaptors. Tube 5 may comprise telescopic sections 5a-d. Release of the coupling may be facilitated by a bolt having a head located in a blind bore in the sleeve and a threaded portion located in a threaded bore in the sleeve, the bolt extending through the wrench bar. Alternatively, release is facilitated by a pair of spring biassed pins or wedges. The pins may be located in a tube insertable into the wrench bar. The upper end of the bar may be coupled to a common unit (32, figure 11) which is connected to but free to rotate relative to the tube 5.
Patent GB-2389827-B (GB)
Title: Hub drive system
Inventor: JENKINS MARCUS
IPC: B60K7/00
Filed: 2002-06-18
Granted: 2005-12-14
Abstract: A hub drive has a tubular housing suspended in a vehicle, and a motor in one, inboard end of the housing, and a gearbox in the other end. A hub is driven by the gearbox and is journalled on the housing. A gallery is defined between the motor and housing to receive lubricant from an external connector to cool the motor before delivery via a passage to a rotor of the motor, and thence to the gearbox to lubricate the gearbox. The drive is dismantleable without removal of the vehicle wheel, from the open ends of the housing. A gear change mechanism permits minimisation of the motor while still providing a wide range of torque and speed capability.
Patent GB-2401649-B (GB)
Title: Programmable high speed valve actuator
Inventor: WYGNANSKI WLADYSLAW
IPC: F01L9/22
Filed: 2004-04-26
Granted: 2005-11-09
Abstract: An electromagnetic actuator is described in which a rotor comprising permanent magnet means is rotatable in a stator which is magnetisable by causing an electric current to flow through at least one winding associated with the stator. The rotor has at least two stable rest positions, each defined by spring and/or magnetic forces acting on the rotor. Spring means stores energy during part of the movement of the rotor and provides kinetic energy for accelerating the rotor during subsequent movement thereof away from rest in one position towards another. A magnetic torque is exerted on the rotor when a current flows in said at least one winding which is sufficient to overcome the force(s) holding the rotor in that rest position, to cause the rotor to rotate in a direction from that rest position towards another a rest position. The rotor is connected to a thrust member by a mechanical linkage by which the rotational movement of the rotor is converted into substantially linear movement. The linkage has a mechanical advantage which varies in a predetermined manner during the rotation of the rotor. The actuator can be used to open and close a valve of an internal combustion engine. A power supply is provided for delivering current to the actuator from a current source so as to operate the actuator in an energy efficient manner.
Patent GB-2122604-B (GB)
Title: Substituted thiazolidinyl esters of mineral acids
Inventor: STORNI ANGELO
IPC: A61K31/425
Filed: 1982-10-14
Granted: 1986-01-08
Abstract: Compounds of the formula    <IMAGE>  (I)  in which one of the symbols R1 and R2 represents an alkyl radical that has 3 or 4 carbon atoms and is unsaturated in the 2,3-position, and the other represents such a radical or lower alkyl, R3 and R4 each represents, independently of the other, hydrogen or methyl, and A represents a radical of the formula   <IMAGE>  in which Z1, or each of Z2 and Z3 independently of the other, represents hydrogen or lower alkyl, or Z2 and Z3 together represent lower alkylene, and salts of such compounds in which Z1, or Z3 and optionally also Z2, represent(s) hydrogen, exhibit tumor-inhibiting activities.
Patent GB-2130043-B (GB)
Title: Facsimile scanner with pivoting scan head
Inventor: WILMAN HUGH
IPC: H04N1/10
Filed: 1982-11-05
Granted: 1986-06-11
Abstract: A document scanner is described in which an image of an illuminated information bearing document is formed by a lens and brought to focus in a plane containing a narrow line of photoelectric elements onto which the image falls, which elements are addressed in sequence to produce an electrical signal a parameter of which (such as amplitude) varies in sympathy with the incident light level on the individual elements as the latter are scanned, and means is provided for moving the line of photoelectric elements relative to the image, so that the latter can be scanned in a series of parallel bands, each of which is effectively "scanned" in a direction perpendicular to the movements of the elements by the sequential addressing of the elements making up the line, and the scanner further comprises a first housing within which the lens and line of photoelectric elements are housed and a second housing within which the first housing is mounted for sliding movement parallel to a window remote from the lens through which light from the document can pass, to form the image thereof in the plane containing the line of photoconductive elements.
Patent GB-2172403-B (GB)
Title: Method for operating automatic test equipment
Inventor: WILLIAMS LEWIS
IPC: G01R31/28
Filed: 1985-03-15
Granted: 1988-11-02
Abstract: In automatic equipment for the in-circuit testing of board mounting components, it is sometimes necessary to apply guard signals to circuit nodes other than nodes to which a device or gate under test is connected but with which there may be interaction. The invention provides a method for defining guards during the operation of automatic test equipment so that a selected component of a circuit may be tested which method includes the steps of establishing a measurement of the selected component (41) identifying a circuit node associated with the selected component (43), applying a guard to the node (44), establishing a measurement with the selected guard in place (46) and, should the guard result in an improvement, retaining the guard during subsequent automatic testing (48). Improvement may be assessed with respect to an initial unguarded measurement, with or without other guards in place. Those guards showing the greatest improvement may be retained and applied in combination for further improvement. The present invention avoids the need for a highly skilled operator to place guards manually, and also allows assessment of all potential guards which is not practical manually.
Patent GB-2179156-B (GB)
Title: Flow meters
Inventor: NORTHEDGE RONALD
IPC: G01F1/74
Filed: 1985-08-14
Granted: 1990-08-22
Abstract: A 3-phase flow meter (1) comprises a pipeline (2) containing pressure and temperaure meters (4,6) and a meter (10) for measuring the density of the combined flow. A proportion of the flow is diverted through a separator (14) which separates outthe gas component from the liquid components. A density meter (30) is provided to measure the density of the combined liquid components. The outputs of the various meters are fed to a processing circuit which outputs the volumes and masses of the three phases.
Patent GB-2178815-B (GB)
Title: A connector for conveying fluid
Inventor: GILL DAVID CHARLES
IPC: A01M7/00
Filed: 1986-07-31
Granted: 1989-08-16
Abstract: A releasable connector comprises first and second elements (A,B). The elements (A,B) have flanges (10,34) which lie face-to-face when the elements are interconnected. The flange (10) of the first element (A) has flexible lugs (12) which carry barbs (14). The barbs (14) engage the flange (34) of the second element (B) to retain the elements together. The first element (A) has a socket (2) within which extends a nozzle (4). The second element (B) comprises a plug which fits in the socket (2) and which has a bore (38) fitting over the nozzle (4).
Patent GB-2197644-B (GB)
Title: Filling packaging containers
Inventor: MILLER JOHN DEREK
IPC: B67D1/08
Filed: 1987-10-08
Granted: 1990-06-13
Abstract: A machine for filling packaging containers (14) with a flowable product (18, 20), the machine comprising a control valve in the form of a plug valve (30) having a body (28) defining a bore (29) forming a frusto-conical valve seat, a plug (32) having a complementary frusto-conical surface and a valve chamber (31) for pressurised fluid formed at the wider end of the plug. The chamber communicates with the bore. The plug is axially displaceable between a first position, in which its frusto-conical surface seals against the valve seat and in which it is rotatable to control flow through the valve, and a second position, in which it is withdrawn into the chamber to provide clearance between the mating surfaces of the plug and the seat but retaining clearance between its wider end and the opposite surface of the chamber so that all the surfaces of the plug are exposed for cleaining and sterilisation.
Patent GB-2278569-B (GB)
Title: A sealing arrangement for optodevice moulds
Inventor: ERIKSEN PAUL ASGER
IPC: G02B6/44
Filed: 1994-05-06
Granted: 1997-02-19
Abstract: A mold arrangement for moulding an optodevice onto an optical ribbon fibre. The mould includes of a plurality of plates which are intended to be inserted between the movable top plate and the stationary bottom plate, or counterpressure plate, of a transfer moulding press, and includes an inlet channel, primary and secondary runners and an optodevice moulding cavity formed when two plates are brought together and through which the ribbon fibre extends. According to the invention, the mould cavity is provided with an outwardly projecting part at the ribbon-inlet end of the optodevice, and a seal in the form of a rubber sleeve or a sleeve of some similar material disposed around the ribbon and positioned in the mould cavity so that one end of the sleeve will completely fill the outwardly projecting part and so that the other end of the sleeve extends into the mould cavity. The seal in the moulded optodevice extends out from the optodevice around the ribbon fibre.