baber/WOPTO huggingface dataset:
Patent GB-2085881-A (GB)
Title: A process for the preparation of 11-dodecen-1-ol and derivatives
IPC: C07C69/145
Filed: 1981-10-23
Abstract: 11-dodecen-1-ol and its acetic acid ester are prepared by reducing an alkyl dodec-12-enoate (V) and, optionally acetylating. The compounds (V) may be prepared from compounds of formula (IV> OCH-(CH2)9-COOR<1> (IV> by a method suitable for the formation of a vinyl group, and the compounds of formula (IV) may be prepared by the oxidation of an ester of the general formula (III> HO-CH2-(CH2)9-COOR<1> (III> wherein R<1> has the same meaning as above. Esters of formula (III) may be prepared in a variety of ways, such as the treatment of a corresponding haloester with a base, or the esterification of the corresponding acid. <IMAGE>
Patent GB-2094490-A (GB)
Title: Reflex copying
IPC: G03G15/22
Filed: 1982-01-08
Abstract: A positive photocopy is produced directly on photoconductive material by the reflex contact printing process, using positively charged translucent photoconductive material having a substrate or backing layer of insulating material (the insulating material being in contact with the original during exposure). According to Figure 3, photoconductive material having a removable insulating backing layer is charged between corona wire 26 and conducting plate 34, reflex exposed between lamp 46, and original 50, developed in dispersed toner bath 56, and cut by guillotine 24. According to Figure 4, the insulating material is in the form of an endless belt 58 which is discharged by means of a discharge electrode 64. <IMAGE>
Patent GB-2097817-A (GB)
Title: Fermentation apparatus
IPC: C02F3/28
Filed: 1982-03-16
Abstract: Apparatus for use in fermentation processes, in cell culture and in processes for solubilising polysaccharides comprises a primary chamber (18) for holding liquid such as a fermentable feedstock, a nutrient medium or a chemical pre-treatment agent, and cylindrical secondary chambers (10) inside the primary chamber, each secondary chamber having a permeable wall (24), and means such as rollers (6) for rotating the secondary chambers inside the primary chamber. Support structures such as concentric cylindrical smooth or corrugated sheets (31, 32; 33, 34) may be mounted inside the secondary chamber. The apparatus may be used for the production of microbial biomass by growing a microorganism on a substrate in the secondary chamber. The apparatus may also be used for production of alcohol, enzymes, cultured plant or animal cells, antibiotics, products of genetic engineering or for solubilising polysaccharides. <IMAGE>
Patent GB-2101683-A (GB)
Title: Multi-cylinder internal combustion engine
Inventor: ENDO NORIO
IPC: F02D41/36
Filed: 1982-03-23
Abstract: A plurality of cylinders are supplied with air via a common throttle valve 6 and a control unit 5 regulates the number of cylinders operating by intercepting the air supply to some of the cylinders under certain operating conditions. The output of the engine with a first number Z1 of cylinders operating coincides with the output with a second number Z2 of cylinders operating at a certain engine speed and the same throttle valve opening or manifold pressure or air flow rate. The engine is switched between Z1-cylinder and Z2-cylinder operation in the proximity of the point where said outputs coincide in response to the throttle valve opening, the manifold pressure or the inlet air flow rate and in response to the engine speed. <IMAGE>
Patent GB-2097013-A (GB)
Title: Chromogenic fluoran compounds
IPC: C09B11/24
Filed: 1982-04-15
Abstract: The invention provides a chromogenic compound having the general formula (I):   <IMAGE>  wherein  R1 represents hydrogen or lower alkyl, R2 and R3 each independently represent hydrogen, alkyl, cycloalkyl, aralkyl, aryl, hydroxy, alkoxy, cycloalkoxy, aralkoxy, or aryloxy, and either R2 or R3 can be an optionally substituted amino group, with the provisos that R1, R2 and R3 do not at the same time each represent hydrogen or C1-4 alkyl, and that, if R3 represents hydrogen, then R2 is hydroxy, alkoxy, cycloalkoxy, aralkoxy, aryloxy or an amino group; or R1 and R2 or R2 and R3 together complete a further ring which is aliphatic, aromatic or heterocyclic. The invention also provides a process for the preparation of such compounds. The compounds are useful in pressure-sensitive record materials.
Patent GB-2106507-A (GB)
Title: Erucic acid esters
Inventor: OBEJI JOHN KARL
IPC: A61K8/37
Filed: 1982-06-30
Abstract: New cosmetically useful esters of erucic acid in which the esterifying group is an aliphatic group of 17-24 C atoms which is straight or branched chain, saturated or monounsaturated and is optionally monohydroxy substituted, e.g. stearyl, isostearyl, hydroxystearyl, behenyl, oleyl, arachidyl, lignoceryl, tetracosenyl or erucyl are prepared by a transesterification reaction between the appropriate alcohol and erucic acid, the latter being contained in and reacted in the form of rapeseed oil.
Patent GB-2107556-A (GB)
Title: Communication system
Inventor: YOUNG MICHAEL FRANCIS
IPC: H04B15/00
Filed: 1982-07-09
Abstract: A wireless communication system is described for enabling simultaneous operation of a plurality of portable communication devices each having its fixed base station with which it communicates. The operating frequencies of the system are such that communication can occur within a specified area without harmful interference caused by receiver desensing and intermodulation products. The input-output of each device comprises a resistive attenuator pad.
Patent GB-2107629-A (GB)
Title: Gap control roll in longitudinal welding of pipes
Inventor: HESS WALTER
IPC: B21C37/06
Filed: 1982-08-27
Abstract: The invention relates to a gap control roll for pipe pass stands in an installation for the longitudinal seam welding of pipes, said roll having a gap-entering annular ridge. To reduce wear on the ridge the invention offers a construction in which wear-resistant ridge ring or rings (4) are mounted on an outer carrier ring (3) which in turn is rotatably supported on an inner mounting ring (2) secured to the roll (1). The roll (1) is usually in two halves with the inner ring (2) therebetween, whereby the outer ring (3) is received in annular groove or recess (9) formed by the halves and the inner ring (2). <IMAGE>
Patent GB-2108396-A (GB)
Title: Board game apparatus
Inventor: ASTLE RONALD WILLIAM
IPC: A63F3/02
Filed: 1982-09-29
Abstract: Three boards, which can be disposed vertically one above the other or laid in a line through their axis, each have a plurality of zones defined by concentric circles and spaced outwardly extending radial lines. Two sets of playing pieces each comprising 45 pieces are provided and the central regions of the boards are termed "blackholes". <IMAGE>
Patent GB-2114115-A (GB)
Title: Discontinous silicon carbide fiber reinforced glass composites
Inventor: PREWO KARL MICHAEL
IPC: B32B17/12
Filed: 1983-02-04
Abstract: Discontinuous silicon carbide fiber reinforced glass composites are disclosed having high strength, fracture toughness, and oxidative stability, even in high temperature oxidative environments. Disclosed composites include silicon carbide fiber reinforced borosilicate glass, high silica content glass, and aluminosilicate glass. Flexural strengths in excess of 20,000 psi (138 MPa) at temperatures in exces of 500 DEG C are attained with such composites.
Patent GB-2123631-A (GB)
Title: All pass filter
Inventor: MARTINEZ ALDO A
IPC: H03H11/12
Filed: 1983-05-11
Abstract: A differential amplifier (11) is fed directly via a resistance (R1) and via a potential divider comprising a resistor (R3) and a frequency-dependent impedance such as the series L-C circuit shown. A feedback resistance (R2) can be set to balance the effects of non-ideal inductor Q. The impedance arrangement shown reduces the effects of stray capacitance (C1). <IMAGE>
Patent GB-2125805-A (GB)
Title: Oil-soluble polyacrylates
Inventor: TURCK ULRICH
IPC: C10L1/236
Filed: 1983-07-13
Abstract: Oil-soluble polyacrylates useful as fluidity improvers for paraffin- containing crude oils are polymers having intrinsic viscosities of 4 to 80 [cm<3>. g<-1>] based on (C14- to C22-n-alkyl) (poly)oxyalkylene (meth)acrylates of the formula   <IMAGE> in which R<1> and R<2>, independently of each other, are H or CH3, n is on average from 1 to 4, in particular 1.5 to 3.5, R<3> is an n-alkyl radical having on average from 14 to 22 carbon atoms and the structural units in brackets can be identical or different, optionally together with up to 15 mol% of maleic anhydride or up to 50 mol% of one or more acrylates of the formula   <IMAGE> in which R<4> is H or CH3, R<5> is a C2- to C5-alkylene radical and R<6> and R<7>, independently of each other, are a C1- to C4-alkyl radical, the percentages being based on the mixture of monomers.
Patent GB-2152031-A (GB)
Title: Separating L-tryptophan from fermentation broth
Inventor: OHOKA MASAHARU
IPC: C12N1/02
Filed: 1983-12-21
Abstract: A L-tryptophan-containing reaction mixture produced by a reaction utilizing a microorganism is adjusted to pH 2 to 5 with a mineral acid and then heated whereby the microorganism contained in the reaction mixture is flocculated, and removed by either (1) filtering, or (2) adding an alkali to convert L-tryptophan to its alkali salt and then filtering. L-tryptophan of high purity can be obtained.
Patent GB-834464-A (GB)
Abstract: 834,464. Rectifier assemblies. GENERAL ELECTRIC CO. Ltd. March 14, 1958 [March 14, 19571, No. 8473/57. Class 37. A rectifier assembly comprises a plurality of semi-conductor rectifier devices at least one electrode of each being attached to a heatexchanger whereby the rectifier device may be cooled by a cooling gas. The rectifier devices are mounted on one or more insulating channelshaped supports mounted in a frame and which constitute a duct or ducts for supplying cooling gas to the heat-exchange surfaces. The arrangement is such that the rectifiers mounted on any one support may be mounted in or removed from the frame as a pre-assembled unit. In the embodiment shown the rectifiers 1 are mounted on channel-shaped insulating supports 3 such that the heat-exchangers 2 are situated in the duct formed by the two channel sections. Connection to the rectifiers is made through fuses 13 by means of bus-bars 6, 7 which make contact with finger-type connectors 8 and 9 mounted on further conductor bars 10. The supports 3 are carried by the frame 4 in heavy duty slides so that they may be mounted independently of one another. Cooling air is supplied to the ducts formed by means of a trunking system 16 carried in the frame and provided with a fan. The Provisional Specification also describes an assembly in which the rectifiers are mounted on tubular supports through which cooling water is passed.
Patent GB-2164103-A (GB)
Title: Torque limiter coupling
Inventor: WILLIAMS GEOFFREY HUGH
IPC: F16D43/21
Filed: 1984-09-05
Abstract: A friction plate torque limiter, comprises a hub 1, rotatably connected to a plate 3 via a bearing 4, the plate being mounted between friction plates 2,6, which are subject to an axial force, transmitted by a thrust ring 8 which is slidably connected to the hub 1, provided by springs 11, 12 which are restrained by an adjusting nut 10. The nut 10 is engaged by screws 9 which co- operate with retracting levers 7, which are driven by members 5, attached to the plate 3, where the friction plates slip. In this way the slip of the plates with respect to the hub causes axial movement of the thrust ring 8, removing the axial force from the friction plates and permitting the torque limiter to slip at a reduced torque and thus a reduced heat dissipation. <IMAGE>
Patent GB-2148921-A (GB)
Title: New formazan reactive dyes
Inventor: YAMAMURA SHIGEO
IPC: D06P3/40
Filed: 1984-09-13
Abstract: The title compounds, in free acid form are of formula (1):   <IMAGE>  wherein n is 1 or 2, and when n = 1,   <IMAGE> is substituted or unsubstituted amino or a group represented, in a free acid form by formula (2> <IMAGE> and when n = 2,   <IMAGE> is -NH-X-NH- where X is a specified bridging group; R is H, SO3H, OH, Cl, F, C1-4 alkyl, C1-4 alkoxy or CO2H, and M is Cu or Ni. Compounds (1) impart violet to blue hues to cellulosic fibres, with a high colour yield and without agglommeration in the dye bath.
Patent GB-2148270-A (GB)
Title: Cermet materials
Inventor: LLOYD DAVID EMRYS
IPC: C04B41/51
Filed: 1984-09-28
Abstract: A method of manufacturing a cermet material comprises forming a porous article of a ceramic material (e.g. alumna or silicon carbide) by sintering, and infiltrating at elevated pressure and temperature a metal (e.g. aluminium or an alloy thereof) into the pores of the sintered article.
Patent GB-2166707-A (GB)
Title: Mechanical excavator with reflector
Inventor: MANN RICHARD CHARLES ARTHUR
IPC: E02F3/32
Filed: 1984-11-09
Abstract: A mechanical excavator is provided with a reflector (45) on a part of the back hoe arm (35, 36) between the bucket (40) and the first pivotal connection of the arm (35) to the adjacent articulated arm portion (34) of the back hoe. The reflector may be convexly curved at least in one plane to expand the observer's field of view and may be recessed or provided with covers for protection against mechanical damage. The reflector may be made of highly polished metal rather than silvered glass in order to avoid fracture by impact. As shown the part (36) telescopes in the part (35) and the reflector (45) may be mounted either on the part (36) or the part (35). <IMAGE>
Patent GB-2168472-A (GB)
Title: Heating appliance control system
Inventor: RATHGEBER FREDERICH HANS
IPC: F23N1/10
Filed: 1984-12-13
Abstract: A control system, for a heating appliance which comprises a combustion chamber in thermal communication with eg. a water jacket to be heated, a fuel fed burner operative in the combustion chamber, an inlet means for inflow of combustion air to the burner, an outlet flue for outflow of the products of combustion, comprises an inlet air flow control damper movable to impose variable constriction on the inflow of combustion air. Respective sensing chambers are provided for sensing temperature of the working medium and flue temperature, each providing by way of an actuating chamber a mechanical output to the damper in a direction to increase the constriction of inflow of combustion air in response to sensed temperature rise, and each being operatively associated with an adjustment means for adjusting the damper position for a given working medium temperature and flue temperature as the case may be. <IMAGE>
Patent GB-2176665-A (GB)
Title: Dual voltage power supply
Inventor: BILLIET COLING THOMAS
IPC: H02M1/10
Filed: 1985-06-07
Abstract: The supply arrangement comprises a triac TR for applying a.c. power to a load, such as heating elements 36, and a selector SWa, SWb for conditioning the arrangement for either of two voltage supplies to power the load. The selector determines that the triac TR conducts only on alternate half cycles of the a.c. supply when the arrangement is conditioned for the higher of the two voltages and to conduct on both positive and negative half cycles when the arrangement is conditioned for the lower of the two voltages. The selector SWa, SWb is set in the factory before the unit is closed. The arrangement shown is embodied as a proportional temperature controller for an air-supply filter-heater. The triac TR is burst fired when a thermistor TH1 senses a demand for heat, each burst having a predetermined duration set by a circuit IC1. Heater 36 may be semi- conductor ceramic discs, preferably of doped barium titanate exhibiting a rapid rise in electrical resistance with increase in temperature, above the normal working temperature range. so that they are self-protecting. The discs have a honeycomb structure. <IMAGE>
Patent GB-2177056-A (GB)
Title: Umbrella stand for a motor vehicle
Inventor: WANG STEVEN
IPC: B60R7/12
Filed: 1985-06-28
Abstract: The umbrella stand comprises a receptacle (11) for receiving one or more umbrellas. The receptacle is mounted on a door of the motor vehicle and has a hole (13) in its lower end. A water collecting vessel (14) is mounted below the receptacle (11) either to the bottom wall of the receptacle (11) or independently thereof and water which drains through the hole (13) is collected in the vessel (14). Each time the door of the vehicle is opened the vessel (14) is tilted so as to discharge any water collected therein to the outside of the vehicle. The vessel (14) can be tilted by a cord or wire (20) connected between the vessel and the vehicle body and guided around guide wheels or pulleys (21). Alternatively, the vessel (14) can be tilted by a mechanical linkage when the door opens or by an electrical device. <IMAGE>
Patent GB-2177448-A (GB)
Title: Improvements in or relating to clamping devices
Inventor: ROOKER KENNETH
IPC: E06C1/34
Filed: 1985-07-03
Abstract: A clamping device, adapted for use in association with the top of a ladder, to grip a structure against which the ladder is at rest and so hold the ladder steady. The device comprises at least one pair of co-operating clamping jaws 8, 19, 27, 28, the jaws being carried by arms which constitute the opposite sides of a parallelogram linkage. Once one jaw is hooked on contact with the structure, simple pulling of the foot of the ladder away from the structure tends to change the shape of the parallelogram so that the jaws meet and positively grip the structure. The application describes devices suitable for connection to ladders with both solid and hollow rungs. <IMAGE>
Patent GB-2165646-A (GB)
Title: Temperature indicators
Inventor: FORDYCE DIANE SILIEN
IPC: G01K1/14
Filed: 1985-10-08
Abstract: A unit having a plurality of cells (4) ... (8) which include a light filter and a liquid crystal composition, and which are characterized in that each cell displays a color in response to exposure to a temperature in a predetermined narrow range which is above about 27 DEG C and below about 38 DEG C, and otherwise appears dark; the color that each cell displays is different from the colors that the other cells display; and no more than two of the cells display color at any given temperature. The device is used to determine skin temperature. <IMAGE>
Patent GB-2166073-A (GB)
Title: Device for loosening and/or tightening vehicle wheel nuts
Inventor: MCCLELLAND THOMAS
IPC: B60B29/00
Filed: 1985-10-10
Abstract: A device 1 for loosening and/or tightening vehicle wheel nuts comprises a gear train formed by a gear 5 and a pinion 6 driven by a lever arm 24 through a pawl 20 engageable against the teeth of the pinion. The gear 5 is mounted on an axle 9 which extends through a bearing housing 11, 12, 13 and terminates in output sockets 15 which are connected to a conventional wheel nut receiving socket 16 through an extension bar 17. Support for the bearing housing 11, 12, 13 is provided by a support leg 29 which extends downwardly from the housing and terminates in a ground engaging foot 31 which is pivotally mounted to the leg 29 to facilitate height adjustment of the device. <IMAGE>
Patent GB-2165539-A (GB)
Title: Antiviral nucleoside derivatives
Inventor: SZABOLCS ANNA
IPC: A61K9/20
Filed: 1985-10-11
Abstract: This invention relates to novel nucleoside derivatives of the formula (I> <IMAGE> and the pharmaceutically acceptable acid-addition salts thereof, wherein R and R<1> are the same or different and stand for hydrogen or an optionally substituted acyl, optionally substituted cycloalkanoyl, optionally substituted aroyl or optionally substituted hetereoaroyl. Furthermore the invention relates to antiviral pharmaceutical compositions comprising these compounds, their use as antiviral agents and methods for the preparation of the compounds of the formula (I) and their pharmaceutically acceptable acid-addition salts. R and/or R<1> may also be a blocking group, e.g. (4-methyoxytriphenylmethyl)methyl.
Patent GB-2168959-A (GB)
Title: Stopper for a bottle
Inventor: POTRECK UWE
IPC: B65D47/12
Filed: 1985-12-02
Abstract: A stopper for a bottle, preferably for-an aroma-phial, comprises a cap 1 and a spout 3. The spout 3 is tubular, and reaches into the inside of the phial. An annular outwardly-projecting rim 4x on the spout 3 ensures a tight fit between the spout and the phial. The cap is secured to the spout by a screw-threaded or bayonet connection or it may be snap-fitted thereto. <IMAGE>
Patent GB-2172533-A (GB)
Title: Improvements in or relating to underwater welding apparatus
Inventor: GREIG PETER AIRTH
IPC: B23K9/00
Filed: 1986-03-14
Abstract: The disclosure relates to an underwater welding apparatus for welding a component (9) to a pipe consisting of a chamber (10) for mounting on the pipe and having a bottom part open to the pipe. The chamber has a supply (65, 66, 67) for delivering argon to the chamber to displace water therefrom, a central mounting (37) for the component to be attached to the pipe and an electric welding gun (48) mounted on a hub (57) to rotate around the mounting (37) by means of an electric motor (52) to rotate the gun around the base of the component on the pipe to weld the base to the pipe. <IMAGE>
Patent GB-2196925-A (GB)
Title: Chain link for conveyor
Inventor: HODLEWSKY WASYLY G
IPC: B65G37/00
Filed: 1986-12-15
Abstract: A chain link for a product capturing chain, includes a pair of opposed retaining lips 26, 102, 104 for retaining a resilient gripping member, 50, 60. The retaining lips are formed integrally with a flat plate means 14, 62 which may have hinge means 20 to connect it to a similar link or may have saddle means 64 attached to its lower face for attaching it to a chain link. The resilient gripping means 50, 60 is a hollow member with a flat surface for contacting the top surface of the plate means and is retained by the lips 26, 102, 104 being bent to project within the hollow ends of the gripping means. <IMAGE>
Patent GB-2199647-A (GB)
Title: Heat exchangers
Inventor: MACPHAIL NICHOLAS JULIAN JAN F
IPC: F28F13/12
Filed: 1987-01-07
Abstract: Within a boiler heat exchanger formed by a water jacket wall 10 and held loosely in random orientation by a support plate and spacing box are short pieces of metal tube 14. These cause turbulent flow of the flue gases in flue gas passage 12 while effectively increasing the surface area of the water jacket and transfer their heat by multipath point contact via the water jacket 10 to the water in the water passage 11. The pieces 14 may be secured to one another and wall 10 by solder or adhesive cement. <IMAGE>
Patent GB-2207294-A (GB)
Title: Winding layout between commutator and wound armature for an electric motor
Inventor: WANG PATRICK SHUI-CHUNG
IPC: H02K13/04
Filed: 1987-07-20
Abstract: The armature comprises a lamination stack having a plurality of pole pieces (10), winding coils (11) wound, respectively, about the pole pieces, winding portions (13) connecting adjacent winding coils, and a commutator having a plurality of commutator bars (12) equal in number to the number of pole pieces. The commutator bars are aligned with the spaces between the pole pieces and the winding portions are connected to aligned commutator bars. Thus, for example the winding portion (13') connecting winding coils (11a and 11b) is connected to commutator bar (12a) rather than commutator bar (12b) as was past practice. <IMAGE>
Patent GB-2211541-A (GB)
Title: Collar and pin lock
Inventor: BATES FREDERICK ERNEST
IPC: E05B67/36
Filed: 1987-10-23
Abstract: A central pin 10, is fixed to a plate 8, which is bolted to a door. Another hinged plate 11 overlaps the central pin and a collar 9 is placed on the central pin to be locked into place by way of small spring-loaded pins 3 in the locking mechanism mating with holes in the collar. The collar can be removed and locked back into place while the building is in use. <IMAGE>