baber/WOPTO huggingface dataset:
Patent GB-2031423-A (GB)
Title: Production of Heterocyclic Compounds
IPC: C07D487/04
Filed: 1979-09-17
Abstract: Compounds of the formula (I> <IMAGE> (in which X represents HS- or a group R1R2N- wherein R1 and R2 which may be the same or different represent hydrogen or a straight or branched chain alkyl group containing from 1 to 4 carbon atoms or a benzyl group and R3 represents a C3-7 alkyl group or a C3-7 cycloalkyl group) are prepared by reacting an  alpha -ketoester of the formula (II> <IMAGE> (in which Alk represents an alkyl group) or a precursor thereof with a compound of the formula (III> <IMAGE> The precursor of the compound of formula (II) may be a mixture of isomeric enol esters   <IMAGE> The compounds of formula (I) may be converted into compounds of formula VIII   <IMAGE> in which R1 and R2 which may be the same or different represent hydrogen or a straight or branched chain alkyl group containing from 1 to 4 carbon atoms, and R3 is as defined above.
Patent GB-2059259-A (GB)
Title: Improvements in the braking of wheels
IPC: B60B33/02
Filed: 1979-09-18
Abstract: A wheeled castor comprises a swivelling fork 1 pivotally connected to a wheel carrier 5 with a wheel 9. The fork 1 has a braking rod 12 which engages the outer periphery of the wheel on depression of a pedal part of the wheel carrier. <IMAGE>
Patent GB-2059539-A (GB)
Title: Belt Joints
IPC: F16G3/16
Filed: 1979-09-20
Abstract: One belting end 12 is joined to an adjacent belting end 13 of belting comprising a body element 10 and a longitudinally extending constraining element 11 embedded in the body element. The ends 12 and 13 are preferably shaped as shown in Figure 4 and are pressed by suitable apparatus against opposite faces of a heating element. The application of heat and pressure causes the ends of the constraining element to be displaced transversely with respect to their associated body elements, the displacement of one end taking place in the opposite direction to the displacement of the other end so that in the finished joint the ends of the constraining element form an overlapping joint embedded in the fused material of the body element, as shown in Fig. 5. <IMAGE>
Patent GB-2039771-A (GB)
Title: Separating one liquid from another
IPC: E02B15/04
Filed: 1979-07-31
Abstract: Apparatus for, and method of, removing oil (33) from oil- contaminated water which is operable in heavy seas and which does not require more than one self-propelled craft for its efficient operation. The apparatus comprises a collapsible net (31) which floats on the water and adsorbs oil in preference to water, and means to reciprocate the net between a floating disposition and a storage disposition, through desorbing means (36) to remove oil from the net.   <IMAGE>
Patent GB-2074833-A (GB)
Title: Supplying liquid to constant level in containers
IPC: G05D9/02
Filed: 1980-04-30
Abstract: An apparatus 1 for maintaining a desired level of liquid in a liquid container 3 by gravity flow from a closed non-collapsing reservoir 2 for the liquid. A liquid supply pipe 4 extends from the reservoir to the liquid container, and an air inlet pipe 5 extends from a point in said reservoir above the level of liquid intake to said supply pipe and terminating above the outlet of said supply pipe at or adjacent to the intended level of liquid in said liquid container. Liquid from the reservoir fills the liquid container until the level of liquid reaches the level of the air inlet pipe. Air cannot be drawn into the reservoir, so that liquid ceases to flow out from it. If the liquid level falls air can enter through the air inlet pipe until the liquid level is again proximate the level of the air inlet pipe. <IMAGE>
Patent GB-2052667-A (GB)
Title: Blind Rivet Assembly
IPC: B21J15/16
Filed: 1980-05-09
Abstract: A blind rivet assembly having a mandrel 12 with an enlarged head 20 abutting a surrounding buckling sleeve 16 whose forward end engages the rear end of a tubular rivet body 14, is characterised by the sleeve 16 having a central section 44 of greater internal diameter than that of forward end section 48 and the wall thickness of the forward end section 48 being greater than that of the central section 44, and by rear end of the rivet body being formed with adjacent differing diameter portions 40, 42, rearmost portion 42 which initially abuts sleeve 16 being the smaller diameter. Thus, as the mandrel 12 is withdrawn, whilst the rivet body 14 is being restrained, the buckle sleeve will commence to buckle whilst it is still engaged by rearmost smaller diameter portion 42 of rivet body 14, continued mandrel withdrawal will cause the sleeve to slide over portion 42 to abut portion 40 so that the buckle formation is substantially completed against the portion 40, and further mandrel withdrawal will cause the formed buckle to expand and slide over portion 40 along rivet body 14 to engage workpiece 34. <IMAGE>
Patent GB-2051700-A (GB)
Title: A wheel rim profile for cycles and auto-cycles
IPC: B60C15/02
Filed: 1980-06-26
Abstract: A cycle and auto-cycle wheel rim has surfaces 10, 10' and 12 adapted for gluing a tubular tyre B, and housings 16, 16' to receive the beads T of a standard tyre. The rim may be made of a reinforced plastics material or a light alloy. <IMAGE>
Patent GB-2059201-A (GB)
Title: Identifying faults in polyphase systems
IPC: H02H3/34
Filed: 1980-09-19
Abstract: The type of fault occurring in a polyphase alternating current electric power transmission system is identified by monitoring, using analogue techniques, the differences between the pre- and post- fault values of the system voltages and/or currents. The various inequalities that are used to distinguish the different types of fault are given in the specification.
Patent GB-2062808-A (GB)
Title: A glueing roller for a labelling machine
IPC: B65C9/22
Filed: 1980-11-12
Abstract: A glueing roller comprises a rigid support sleeve 17 mounted for rotation on a shaft 14 and a rigid, wear-resistant roller casing 20 fixed thereon by means of axially spaced, radially resilient support elements 19. The support elements comprise flat, resilient members of elastomeric material with a hardness of 20-30 shore. The thickness of the rotational unit formed by the support sleeve, support members and roller casing has a ratio of 1:5 to 1:50 with respect to the diameter of the roller. <IMAGE>
Patent GB-2068079-A (GB)
Title: Fluid damped elastomeric mounting with high frequency movements accommodated by diaphragm
IPC: B60K5/12
Filed: 1980-12-04
Abstract: A resilient mounting, more especially for engines in automotive vehicles, having elastomeric spring elements 6, 7 defining a cavity filled at least partly with a damping liquid or composition, includes a flexible diaphragm 30 and associated therewith a rigid stop plate 3 having apertures 23 formed therein. High frequency low amplitude movements are accommodated by the diaphragm which can move freely until it abuts the plate. Low frequency high amplitude movements cause liquid to flow from one chamber to the other. The diaphragm and its stop plate may be located in a partition between the chambers. <IMAGE>
Patent GB-2067045-A (GB)
Title: Vertical aperture correction of a video signal
IPC: H04N5/208
Filed: 1980-12-16
Abstract: A video signal Ea, such as may be generated by a television camera 1, is subjected to a delay 11, and then subtracted 12 from a relatively undelayed version thereof, the difference signal Ec being supplied to a clipping circuit 24, which passes at least that portion thereof that exceeds a predetermined clipping level, and also to a slicing circuit 21, which passes at least that portion thereof that is less than the predetermined clipping level. The sliced signal Ed is inverted at 22 and attenuated at 23 prior to being applied to a mixing circuit 3 which mixes it with the video signal Ea and the output Ef of the clipping circuit 24, thereby to provide a vertical aperture-corrected output video signal Ey which is substantially free of periodic fluctuations that might be present in the amplitude of the original video signal Ea. A preferred use of this vertical aperture correction circuit is with a colour image pick-up device of the type which generates a video signal having a superimposed periodic, fluctuating index signal thereon that produces a line-crawling effect in the ultimately produced video picture. <IMAGE>
Patent GB-2091603-A (GB)
Title: Method of and apparatus for levelling metal plates
IPC: B21D1/02
Filed: 1981-01-26
Abstract: Two conventional sets of pinch rolls 10, 11; 15, 16 are arranged one set on each side of a set of bend rolls 14 of the type used to bend and stretch plates so as to level them. The pinch rolls are driven by reversible DC electric motors so that the plate may be pulled in alternative directions through the bend rolls. <IMAGE>
Patent GB-2077565-A (GB)
Title: Bandage or garment for use on the limb of an animal
IPC: A61F13/06
Filed: 1981-05-15
Abstract: A sleeve forming bandage or garment for use on a limb of an animal, particularly a horse, comprises a covering 10 of stretchable textile material which may be formed from two panels by stitching at 13 and is provided along two longitudinal edges with a releasable fastener 16 such as a zip-fastener for holding the side edges together when the covering 10 is placed around a limb, at least one end region of the covering 10 being provided on the side which in use faces the limb with means 17 to assist in holding the covering in place on the limb. The means 17 may comprise a strip of elastic gripping material or pads. The covering 10 may have on its inner side a detachable lining 18. <IMAGE>
Patent GB-2100411-A (GB)
Title: Burner for gas cookers and hobs
IPC: F23D14/06
Filed: 1981-06-12
Abstract: A burner for gas cookers and hobs, comprising a support (2) bearing a gas supply needle or injector (1) positioned in a chamber (5) defined by a sleeve (6), a body (12) supported on the sleeve (6) by means of radial fins, the body (12) having a central tubular portion (14) defining a through opening (15), and a flame spreader (13) supported on the body (12). Primary air for producing a gas-air mixture in the chamber (5) is drawn through a circumferential opening (18) defined between the peripheral edge (17) of the body (12) and the plate (9) of the hob and through radial passages between the tubular portion (14) and the sleeve (6) to mix with gas from the needle or injector (1) in the chamber (5), the gas-air mixture then being output through the opening (15), then spread between the surface (12') of body (12) and the surface (13') of spreader (13) and out through holes (21) in the flame spreader (13) for combustion. <IMAGE>
Patent GB-2081979-A (GB)
Title: Electrical component assemblies
IPC: H05K5/00
Filed: 1981-08-10
Abstract: A pressure-sensitive component, e.g. an annular-core choke (3) in a current-compensated filter assembly which is sealed with a casting resin (4), is covered with a mixture of polybutene and hard wax 9 which preferably consists of approximately 65 parts by weight of polybutene and 35 parts by weight of hard wax. The filter assembly comprising the covered choke (3) and a coil capacitor (2) is housed in a can (1) and sealed with the casting resin (4). <IMAGE>
Patent GB-2089556-A (GB)
Title: Mechanical spectral shift reactor
IPC: G21C7/26
Filed: 1981-12-16
Abstract: A mechanical spectral shift reactor comprises apparatus for inserting and withdrawing water displacer elements (40) from the reactor core (34) for selectively changing the water-moderator volume in the core (34) thereby changing the reactivity of the core (34). The apparatus includes drive mechanisms (38) for moving the displacer elements (40) relative to the core (34) and guide mechanisms (42) for guiding the displacer rods (40) through the reactor vessel (22).
Patent GB-2096278-A (GB)
Title: A double seat valve
IPC: F16K1/00
Filed: 1982-01-04
Abstract: A hollow chamber with a cleaning connection, characterised in that the outer, hollow displacement rod (1, 2) extending between a mechanism (4) and a valve housing (3) of a double disc valve is divided. The ends of the parts is in two parts which face each other have a detachable connecting element (9, 10) comprising at least two coupling halves which are retained by a screw clamp (11) which surrounds the external surface. A hollow chamber between the rods has a cleaning fluid connection 12. <IMAGE>
Patent GB-2115970-A (GB)
Title: A gramophone pick-up assembly
Inventor: ENSTON RICHARD GERALD
IPC: G11B3/30
Filed: 1982-02-11
Abstract: A gramophone pick-up assembly (10) comprising a pair of articulated arms (18, 19), a base plate assembly (13, 15, 16, 17), for mounting the arm (18) on a turntable deck (11) for pivotal movement relative thereto, the other arm (19) carrying a cartridge (26) having a record-tracking stylus. A curved channelled guide member (22), and a guide pin (Figure 3, not shown), cause the arm (19) to follow the curvature of guide member (22) during play thus to ensure that the centre line of the stylus maintains a tangent to the record groove at the point of contact therewith throughout play. This overcomes the phenomenon known as "lateral tracking error". The head assembly comprising the guide pin allows pivotting of head shell 25 to compensate eccentricity, and rising and falling according to record warp. <IMAGE>
Patent GB-2116121-A (GB)
Title: Cover for wall-mounted electrical switches
Inventor: DENT MICHAEL JOSEPH
IPC: H02G3/14
Filed: 1982-02-27
Abstract: A decorative cover (5) for a wall-mounted electrical switch (1) comprises a faceplate (8) with a peripheral skirt (9) and an aperture (6) for giving access to the operating member (3) of the switch. The edge of the skirt and/or the back of the faceplate are provided with strips of contact adhesive so that the cover can be stuck to the switch and/or the wall (4) on which it is mounted to enclose the switch. <IMAGE>
Patent GB-2094460-A (GB)
Title: Refrigerated food display apparatus
IPC: F25D21/02
Filed: 1982-03-11
Abstract: A food display apparatus comprises a food display support (20) for receiving unwrapped food to be displayed whilst maintained in a chilled condition. A recirculating fan (28) is arranged to circulate air around a closed path (30) within the cabinet of the apparatus, a heat-exchanger (22) of a refrigerating system being located within the path of the airstream for cooling thereof. An ice sensor (34) is directly associated with the heat-exchanger, and the arrangement is such that when the sensor (34) responds to ice build-up, the refrigeration system compressor is de-activated to enable defrosting of the heat-exchanger. During the defrosting cycle, the recirculation of air around the closed path (30) is maintained, whereby the air within the display cabinet is rehumidified during the defrosting cycle. <IMAGE>
Patent GB-2096501-A (GB)
Title: Improved incremental bending method and apparatus
IPC: B21D5/04
Filed: 1982-04-08
Abstract: Apparatus for forming a bend in sheet material comprises two pivotally mounted jaws (10 and 12) between which is a gap (13) for receiving sheet material (14) which is fed incrementally or indexed through the jaws (10, 12) in the direction of the arrow 15. Rotation of one or other jaw by a controlled amount, together with a controlled extent of incremental feed of the sheet material (14) applies to the sheet material a number of incremental bends which in total form the desired curved profile to be introduced in the sheet material. Other embodiments (Figures 3 and 4) use linearly movable heads to engage the sheet material as the latter is incrementally fed, instead of pivotally movable jaws. <IMAGE>
Patent GB-2110477-A (GB)
Title: Submersible motor having flexible diaphragm with check valve breather
Inventor: TAN RALPH SEOW JIP
IPC: H02K5/128
Filed: 1982-04-30
Abstract: A submersible motor which comprises a casing containing a chamber having open ends includes a flexible diaphragm (66) sealing one of the open ends. The diaphragm flexes outwardly to accommodate the expansion of a motor fill oil within the chamber, and includes an integral check valve (20) which permits the fluid in which the motor is submersed to flow into the chamber in response to a pressure differential but prevents fluid from flowing out of the chamber. A guard surrounds the check valve and extends into the chamber farther than the check valve to prevent the check valve from engaging any parts of the motor. The guard includes radial passages which provide fluid communication between the volume inside the guard and the region outside the guard. A filter is positioned over the inlet to the check valve, received in a snap fit in an annular recess defined by a boss on the flexible diaphragm having a resilient inwardly extending flange. The flexible diaphragm includes a peripheral sealing bead (74) to prevent fluid from flowing around the periphery of the flexible diaphragm. <IMAGE>
Patent GB-2100206-A (GB)
Title: Vehicle spray inhibitor
IPC: B62D25/18
Filed: 1982-05-13
Abstract: A panel 10 adapted for securement to a mudguard, wing or wheel arch of a motor vehicle comprises a plurality, e.g. three, superimposed inhibiting mesh layers 11, 12, 13 separated from one another by spacers, e.g. spacer mesh layers 14, 15, 16, 17, having larger interstices than said inhibiting layers. The panel 10, when attached adjacent each wheel of a vehicle, provides a reticulate matrix which tends to prevent water thrown up by the vehicle's wheels from rebounding back onto said wheels, thereby reducing the overall amount of spray produced and improving the driver's visibility. <IMAGE>
Patent GB-2101067-A (GB)
Title: Rotary conveyor in a processing machine for objects, in particular labelling machine or filler for containers, such as bottles
Inventor: ZODROW RUDOLF
IPC: B65C9/02
Filed: 1982-06-18
Abstract: A bottle labelling machine has a rotary table 1 with at least two arcuate conveying path sections each for one row of objects and stationary or travelling processing members such as labelling stations 10, 11 or filling nozzles associated with these conveying path sections. The machine also has transfer devices located at the inlet and outlet points of the conveying path sections, e.g. in the form of inlet and outlet drums 16, 23 and 18, 25, which are adjacent to supply and discharge conveyors, e.g. belt conveyors 12, 31 and 20, 28. The supply conveyor leading to the transfer device of one conveying path section and the discharge conveyor adjacent to the transfer device of the other conveying path section extend side by side and approximately above the centre of the rotary table. <IMAGE>
Patent GB-2124038-A (GB)
Title: Improvements in sealed connections and cable terminations for underwater insulated conductors
Inventor: ALCOCK JOHN MALCOLM
IPC: H02G15/14
Filed: 1982-06-18
Abstract: A connection for connecting cables 3, 4 under water includes a steel housing 1. A seal includes a gland seal 10 with an integral flexible impervious cylindrical boot 11. The boot is supported by a sleeve 6 and retained in a groove 7 therein. After assembly the cavity 22 is filled with a substantially incompressible compound via filler hole 20. A drilling 9 through the housing and sleeve allows external pressure to be communicated to the flexible wall of the boot and thence to the incompressible compound thereby reducing the pressure gradient across the seal and reducing the risk of leakage <IMAGE>
Patent GB-2134219-A (GB)
Title: Fluid flow control valves
Inventor: MCEWEN AVERY COLIN
IPC: F16K11/00
Filed: 1982-09-02
Abstract: A flow control valve assembly for use with an "under-sink" water heater comprises a housing (5) formed with a valve seating (11) located between a cold water inlet to a cold water outlet in the housing (5). A flow control valve (29) carried at one end of a non-rising spindle (26) co-operates with the seating (11) to control flow from the cold water inlet to the cold water outlet. The spindle (26) is operatively connected to a top spindle (38) in a sink mounted tap by a coupling (35, 36, 41, 42) which provides for axial misalignment of the spindles and for variations in the axial locations of the spindle ends joined by the coupling. <IMAGE>
Patent GB-2105906-A (GB)
Title: Fusible transistor PROM
Inventor: CHAPRON CLAUDE
IPC: G11C17/14
Filed: 1982-09-10
Abstract: The programmable read only memory (PROM) is formed in a semiconductor body (20) and comprises an XY memory matrix of transistors (11) having a relatively low breakdown voltage and a decoding assembly of transistors (14) having a higher breakdown voltage. The transistors (11 and 14) are formed simultaneously in discrete islands bounded laterally by a dielectric band (23). The different breakdown voltages arise because the emitters (25A) of transistors (11) adjoin the dielectric band (23) whereas the emitters of transistors (14) are spaced therefrom. <IMAGE>
Patent GB-725801-A (GB)
Title: Improvements in spherically, chromatically and astigmatically corrected objectives
Inventor: ZOELLNER HARRY
IPC: G02B9/12
Filed: 1954-05-10
Abstract: 725,801. Optical objectives. VEB OPTIK C. ZEISS JENA. May 10, 1954, No. 825/53. Class 97 (1). In an objective comprising a single dispersive lens air-spaced between a single front collecting lens and a rear doublet member having a collective cemented surface convex to the front in which the sum of the refractive indices and of the Abbe numbers of the glasses of all the lenses lie respectively between 6.42 and 6.53, and 185 and 188, the arithmetic means of the refractive indices and of the Abbe numbers of the front lens and of the rear lens of the rear member lies respectively between 1.64 and 1.67 and between 52 and 54 and, for an objective of focal length 100, the product of such focal length and of the quotient of the refractive index of the front lens, reduced by 1, and the radius of curvature of the front surface of the front lens lies between 1.68 and 1.73, the axial distance between the front surface of the front lens and the front surface of the dispersive lens lies between 16.4 and 16.6 and the radius of curvature of the cemented surface lies between 32.2 and 33. Numerical data for two examples of the objective shown are given.
Patent GB-2118721-A (GB)
Title: Guide control control equipment
Inventor: LUQUE CABAL VICENTE
IPC: G01L1/22
Filed: 1983-03-02
Abstract: The invention relates to guide cable control equipment, particularly for controlling and measurement of the stress borne by cables acting as guides for cages or skips in underground mine extraction shafts. A signal conditioner 2 is arranged to excite a measuring bridge, and amplify and filter the signal emitted by the stress transducer 1, whereas the analogue memory 3 has the function of rectifying the signal given by the conditioner 2 and also of comparing it with the threshold levels preset for alarm and cutout functions at 6, 7, also having the function of memorising the maximum absolute value of the tension delivered by the conditioner. The stresses to which the cables are subjected, and which are transmitted by the transducers coupled to them, are read out instantly at a digital recorder 11 by means of a commutation switch 10. <IMAGE>
Patent GB-2125044-A (GB)
Title: Pyrimidine derivatives
Inventor: BECK IVAN
IPC: C07D213/73
Filed: 1983-08-11
Abstract: 2,4-Diamino-5-benzyl-pyrimidine derivatives (antibacterials) of the formula   <IMAGE> (R1 and R3 represent hydrogen, a methyl group or a methoxy group; R2 is a halogen, a C1-4 alkoxy group substituted with a halogen, a C2-4 alkenyloxy group or an R4O(R5O)n group; R4 is a C1-4 alkyl group; R5 a C1-4 alkylene group; n is 1 or 2), and their acid addition salts are prepared by reacting an  alpha - benzal- beta -methoxypropionitrile of the formula   <IMAGE> with a diethylene glycol monoalkyl ether in the presence of a base, cyclising the thus-obtained benzyl isomer of the formula   <IMAGE> (preferably without separation) with quanidine and, if desired, converting the product to a salt.