baber/WOPTO huggingface dataset:
Patent GB-2183923-A (GB)
Title: Variable capacitor and variable resistor combinations
Inventor: SATO KAZUO
IPC: H01G5/01
Filed: 1986-12-02
Abstract: The variable capacitor and variable resistor combination has a slider (6) of the variable resistor (2) mounted on rotor shaft (1b) of the variable capacitor (1) so that the capacitance of the variable capacitor (1) and the resistance of said variable resistor (2) can be varied through rotation of the rotor shaft (1b) of the variable capacitor (1). Projections (1a') are provided on a base plate (1a) of the variable capacitor (1) such that the projections (1a') secure earthing conductors (1d and 1e) of the variable capacitor (1) and the projections (1a') engage notches (3d') formed in a substrate (3) of the variable resistor (2). <IMAGE>
Patent GB-2183461-A (GB)
Title: Wax applicator
Inventor: IMOTO TAKASHI
IPC: B60S3/04
Filed: 1986-12-02
Abstract: A wax applicator for applying wax to the surfaces of vehicle bodies and tyres comprises a spongy pad 1 having a handle 3 with a base member 2 located therebetween so as to prevent any wax on the pad from soiling the user's hand. The handle may be integrally moulded with the base member, or it may be fastened thereto. The pad may be made from polyurethane foam. The base member may be provided with an upstanding peripheral flange 6 and/or a downwardly extending peripheral flange. The applicator may form part of a kit which it is housed. <IMAGE>
Patent GB-2198808-A (GB)
Title: Friction clutch driven plates
Inventor: CURTIS ANTHONY JOHN
IPC: F16F15/129
Filed: 1986-12-05
Abstract: A friction clutch driven plate (10) comprises a friction facing carrier (14) mounted on a hub (11) with springs (15) acting to restrain rotational movement therebetween. A friction damper (41) operates between the hub (11) and the carrier (14) to provide a hysteresis effect to the spring (15) loads. The friction damper comprises a plurality of friction washers (41) located between the hub (13) and the carrier (14). The washers (41) are arranged so that alternate washers are connectable with the hub (11) and carrier (14). Preferably one set of the friction washers are connectable to the hub (11) by notches on their outer peripheries, and another set of the friction washers are connectable to the carrier (14) by notches on their inner peripheries. <IMAGE>
Patent GB-2184254-A (GB)
Title: Optical image read-out and recordal scanning apparatus using a polarization beam splitter
Inventor: FUKUI TAKASHI
IPC: G02B27/28
Filed: 1985-04-24
Abstract: An optical image read-out and recordal apparatus comprises generating means for generating linearly polarized image read-out 101B', and image recordal 101A', light beams, means for scanning 107 said image read-out beam 101B' over an image 206 and for scanning said image recordal beam 101A' over image recording means 204 and a polarization beam splitter 108 for separating said image read-out and image recordal beams, characterised in that said apparatus further comprises at least one wave plate 104 disposed to rotate the planes of polarization of said read-out and recordal beams whereby the plane of polarization of one is perpendicular to that of the other and to the face of said beam splitter on the impingement of said read-out and recordal beams on said beam splitter 108. The correction or rotation of the planes of polarization may be conducted before or after two polarized light beams 101A and 101B are combined together by the first beam splitter 103. <IMAGE>
Patent GB-2186962-A (GB)
Title: Forced draft controlled mixture heating system using a closed combustion chamber
Inventor: LARSON CAMERON ALAN
IPC: F23N1/02
Filed: 1987-02-11
Abstract: A high efficiency forced draft water and space heater maintains a desired air to fuel ratio and efficiency in combustion regardless of changes in air inlet pressure. The heater uses a venturi type proportioner 100 and associated fuel regulator to provide an air and fuel mixture of constant ratio which is drawn from the proportioner by a blower 48 and introduced into a closed combustion chamber 14 for efficient burning and heating of a surrounding body of water 22. <IMAGE>
Patent GB-2198211-A (GB)
Title: Mounting assemblies for rotatable elements
Inventor: VANCE DOUGLAS JOHN BRUCE
IPC: B65G39/12
Filed: 1987-06-26
Abstract: A mounting assembly for rotatably mounting a rotatable element onto a support 19, the mounting assembly comprising a shaft 27 for rotatably supporting the rotatable element. Each end of the shaft is supported on the support 19 while being isolated therefrom by a cushioning element 31 of of material which is load supporting and resiliently compressible. The cushioning element 31 comprises a first portion 35, a second portion 33 integral with the first portion and projecting laterally therefrom and a hole formed in the first and second portions. <IMAGE>
Patent GB-2192519-A (GB)
Title: Method for determining the variation with time of a plurality of spectral lines in signal patterns
Inventor: LUDGE WOLFGANG
IPC: G10L19/02
Filed: 1987-06-30
Abstract: Consecutive signal components are digitally captured and the signals are subjected to a fast Fourier transform in which the numbers of measurement values of each signal component capturing the fundamental period are arranged in a repetitive sequence until a number suitable for the fast Fourier transform is reached or even exceeded. The signal series thus composed is subjected to the fast Fourier transform. The analog-digital conversion of the signal which is to be analysed is carried out with a sampling frequency which is higher than would be necessary according to the requirement of the sampling theorem for the highest frequency to be analysed. The invention can be used in technical diagnosis, in speech analysis and in certain medical applications. <IMAGE>
Patent GB-872034-A (GB)
Abstract: 872,034. Selective punching-machines. STEDELIN, J. J., and SEATON, G. A. Oct. 21, 1959, No. 35700/59. Class 31 (2). [Also in Groups XIX and XXXVIII] In time and cost computing apparatus (see Group XIX), punch selecting and actuating arms 46, 76 are rotated <SP>1</SP>/ 10  and <SP>1</SP>/ 24  of a revolution each six minutes and one hour respectively through relays 26, 60 operated by switches 20, 24 controlled by cams 14, 12 driven by a synchronous motor 10. To record the time at which some service begins, a card is pushed between the stationary punch guide 52 and platen 58 until it closes a switch 78 and causes a solenoid 80 to depress the arms 46, 76 making the selected punches 48 perforate the card in positions representing the time. Relays 82, 88 control switches to prevent a repetition of punching while switch 78 remains closed and to prevent a time advance during punching.
Patent GB-2211334-A (GB)
Title: Transportation system having an inter-vehicle distance control arrangement
Inventor: WILSON BARRY
IPC: B61L23/34
Filed: 1987-10-20
Abstract: Autonomous vehicles, of e.g. a post-office railway, control their speed to maintain the inter-vehicle gaps at a minimum substantially equal to the braking distance for any speed up to the system limit. Each vehicle may carry optical devices for monitoring the gap in front and for receiving speed information from the vehicle in front. The optimum gap gOPT at each speed may be determined from look-up tables, while the actual gap may be found using an up/down counter comparing the two speeds. <IMAGE>
Patent GB-2212342-A (GB)
Title: Cable entry sealing
Inventor: CHENG MAI-YEA
IPC: H02G3/08
Filed: 1987-11-07
Abstract: A hole 40 in a wall 21 of a casing 20 to be penetrated by a cable 30 includes an annular flange 42 formed integrally with the wall and having a thickness less than the thickness of the wall. A membrane 45 (Figure 3) covers the orifice of the flange 42 before penetration by a cable 30, to isolale the interior of the casing 20 from the exterior thereof. When the cable 30 penetrates the membrane the cable 30 is closely squeezed by the flange 42 and thereby the interior of the casing 20 is maintained closed and therefore free from pollution, for example by dust, and from ingress of moisture. (Figures 3 and 4).   <IMAGE>
Patent GB-2201957-A (GB)
Title: Process and intermediates for the preparation of insecticidally active compounds
Inventor: BUSHELL MICHAEL JOHN
IPC: C07F9/54
Filed: 1988-01-27
Abstract: The invention provides a process for the preparation of insecticidally active compounds of formula (I) : <CHEM> where X represents hydrogen or fluoro, W represents hydrogen or halo, Z represents halo, alkyl, alkoxy, haloalkyl or haloalkoxy, and Q is a group of formula -(CF2)nR<1> where R<1> is hydrogen, fluoro or chloro and n is one or two, which comprises the step of Wittig reaction between a Wittig reagent of formula        A- @(R<2>)3 Hal<->    or formula        A-P(O)(OR<2>)2,   where R<2> represents alkyl or aryl and A represents the group of formula <CHEM> followed by the step of reduction of the resulting diene to give the compounds of formula (I). The invention also provides novel intermediates for use in the process, and further processes for their preparation.
Patent GB-2215451-A (GB)
Title: A cross-flow plate heat exchanger
Inventor: SZALATA PETER
IPC: F28F9/00
Filed: 1988-03-02
Abstract: A cross-flow plate heat exchanger has a core K which is received in a casing G and which, to form crossing flow channels for the two heat-exchanging media, is embodied by discrete contiguous rectangular plates interconnected by first weld seams 9 to form plate pairs having flow channels for the heat-yielding medium, and contiguous plate pairs form, by the joining together of adjacent plates of two plate pairs by way of second weld seams, flow channels for the other heat-receiving medium, and the heat exchanger core thus formed is connected at its four connection edges, by way of third weld seams 14 extending perpendicularly to the said first and second weld seams and operative as build-up weld seams, to the casing G, semicircular expansion members D which have connecting bends disposed on both their long sides being provided between the build-up weld seams 14 and the heat exchanger casing or components rigidly secured thereto, the connecting bends being operative for resilient suspension of the exchanger core K in the casing G. <IMAGE>
Patent GB-2215515-A (GB)
Title: A lateral insulated gate field effect transistor and a method of manufacture
Inventor: WHIGHT KENNETH RONALD
IPC: H01L21/336
Filed: 1988-03-14
Abstract: A transistor has a semiconductor body (1) having a first region (2) of one conductivity type adjacent a surface of the semiconductor body (1), source and drain regions (3 and 4) of the opposite conductivity type are formed spaced-apart within the first region (2) adjacent the given surface, a lowly doped extension region (5) extends beneath an insulating layer (6) on the given surface from the drain region (4) towards the source region (3), an insulated gate (7) is provided on the given surface (1a) for defining a gateable connection of the source and drain regions (3 and 4), and a further region (10) of the opposite conductivity type is provided adjacent the given surface beneath the insulating layer (6) so as to adjoin the lowly doped extension region (5) remote from the drain region (4) to define a conduction channel area (1) between the source (3) and the further region (10) beneath the insulated gate (7) so that the gateable connection of the source and drain regions is provided between the source and further regions (3 and 10). In the manufacture of the transistor, the insulated gate (7) and insulating layer (6) are used as a mask for the introduction of the impurities to form the source, drain and further regions (3, 4 and 10). Two or more further regions may be provided between the source and drain. The invention may be applied to a lateral insulated gate bipolar transistor structure. <IMAGE>
Patent GB-2210458-A (GB)
Title: Tariffing device
Inventor: DAWSON JOHN BARRY
IPC: G01B5/00
Filed: 1988-09-29
Abstract: A tariffing device for use in preparing a forestry volume inventory comprises a combination of two or all of an axe (7, 9), a calliper (7, 15) or a scribe 31. One of the jaws 7 of the calliper (7, 15) serves as an axe head and has a slot (11) to receive the other calliper blade (15) which is movable. The movable blade (15) is attached to a tubular handle (21, 23) which is slidable on the shaft (1) of the axe head and lockable thereon by a screw collet device (25, 27, 29). <IMAGE>
Patent GB-2229084-A (GB)
Title: A carousel assembly
Inventor: SEMP RAYMOND
IPC: A47B49/00
Filed: 1989-03-01
Abstract: A carousel assembly typically for kitchen cupboards and comprising an upright spindle (17) preferably mounted on the floor of the cupboard and carrying a pair of rotatable storage trays (15, 16). The spindle (17) is supported near its upper end by a pair of radial arms (27) attached to the cupboard walls, the upper tray (16) being rotatable on the spindle (17) above the arms (27). Lug and recess means enable the trays to locate in a preferred rotational position but be fully rotatable therefrom, and at least the upper tray (16) is removable from the cupboard without removing the spindle (17). <IMAGE>
Patent GB-2217511-A (GB)
Title: An improved water cooled nuclear reactor and pressuriser assembly
Inventor: GARDNER FREDERICK JAMES
IPC: G21C1/09
Filed: 1989-03-23
Abstract: One or more pipes 93 interconnect a steam space (102) of a pressuriser (94A) with an upper portion of the primary coolant circuit and one or more surge ports 98 interconnect a water space (104) of the pressuriser with a water-filled portion of the primary coolant circuit. The surge ports 98 have low flow resistance for water from the water space (104) to the primary coolant circuit and high flow resistance in the opposite direction. The reactor may be a pressurised water reactor or an indirect cycle boiling water reactor and may be integral or dispersed. The pressuriser may be integral with the reactor as shown in Fig 2, where a shroud 70 divides the pressuriser from the primary coolant circuit, or may be in a separate pressuriser pressure vessel. The arrangement controls the pressure in the primary circuit in the indirect cycle BWR, allows excess vapour to escape from the primary circuit under normal and fault conditions to prevent steam blanketing of the core and allows the pressuriser to act as a core flood tank for emergency cooling. 
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Patent GB-2228621-A (GB)
Title: Fluid flow sensitive switches
Inventor: BENSON ANTHONY JOHN
IPC: H01H35/40
Filed: 1989-04-25
Abstract: In a fluid flow sensitive switch of the type disclosed in GB 2096399, that end of the movable member 11 which faces the incoming flow of fluid is, in one embodiment, tapered, preferably conically, to improve the sensitivity of the member to flow rate. The actuating lever 16 may be operatively connected to the movable member 11 via a fork 22 which moves with the member 11 and whose extremes of movement are limited by the walls 23 of the fluid flow body 12. In an alternative arrangement, an intermediate lever is provided between the movable member 11 and the switch actuating lever 16. In another embodiment, the movable member 11 includes a plurality of through-passages so disposed as to allow a minimal initial fluid flow through the switch before movement of the movable member 11 occurs. <IMAGE>
Patent GB-2224588-A (GB)
Title: Multiplexed memory system
Inventor: WISCHERMANN GERHARD
IPC: G11C7/10
Filed: 1989-09-22
Abstract: A memory array is described for storing a digital (e.g. video) signal, which comprises successive data words each having a plurality of bit positions. The array comprises a respective multiplexer plane 21 to 2N, including a respective random access memory (RAM), for each bit position of the data words. Successive data words input at 19 are written in parallel into the RAMs, via serial-to-parallel converters respectively associated with the RAMs, such that the bit at the same bit position in each successive word is entered into the same respective RAM allocated to that bit position, whereby a plurality of data words can be accommodated in the array with one bit of each word stored in a different respective RAM. The original data words are reconstituted at output 20. 
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Patent GB-2234072-A (GB)
Title: Improvements in and relating to magnetic resonance imaging
Inventor: LEUNBACH IB
IPC: A61B5/055
Filed: 1989-12-18
Abstract: A magnetic resonance image generating apparatus (1) comprising a first radiation source (5,7,8) capable of emitting a first radiation of a frequency selected to excite nuclear spin transitions in selected nuclei in a sample (2) being imaged and means (7) for detecting free induction decay signals from said selected nuclei, characterised in that said apparatus further comprises a second radiation source (6,9,10) capable of emitting a second radiation of a frequency selected to excite electron spin transitions coupled to the nuclear spin transitions of at least some of said selected nuclei.
Patent GB-2229889-A (GB)
Title: Videodisc and videodisc player, and vision mixing simulator using the same
Inventor: FINNEY ANDREW BRANDON
IPC: G11B19/02
Filed: 1990-03-01
Abstract: An interactive video mixing simulator system uses a videodisc on which the outputs of a plurality of television cameras are recorded in interleaved format. There are three sequences of frames with blocks of 20 frames of each sequence being cyclically interleaved. On replay of one sequence, the read head reads one block and then jumps two blocks (40 frames). To change sequences, the size of the jump is altered for one jump only. By the interleaving of blocks the time interval between discontinuities in the accompanying audio signal is increased from 40ms to 0.8s making them much easier to mask. The blocks may include an extra frame such that the first frame of each block repeats the last frame of the preceding block in the same sequence, thus reducing the visible discontinuities on the jump. <IMAGE>
Patent GB-2245616-A (GB)
Title: Block
Inventor: TAYLOR ROGER CURTOIS BRANDON
IPC: E01F9/012
Filed: 1990-07-05
Abstract: A moulded portable support block having fence post-receiving recesses (14, 15) extending from the upper surface, and a peripheral wall 12 projecting outwardly at opposed ends to provide carrying handles (22, 22), which is inclined inwardly from the lower surface to facilitate removal from the mould during manufacture, but includes two pairs of opposed flat faces (21) which are normal to the lower surface (11) so that the blocks may stand on edge for stacking. The upper surface (10) is recessed centrally to enable the block to be carried as close as possible to the body. <IMAGE>
Patent GB-2238023-A (GB)
Title: Colour ink-jet printing methods
Inventor: LAHUT JOSEPH
IPC: B41J2/13
Filed: 1990-10-29
Abstract: Color printing is effected in an ink jet printer by projecting dots of two colors to a single location on the substrate in a sequence which proceeds from the darker to the lighter one of the two colors, whereby a wider range of colors may be produced. The method may be effected by a printer in which the print head is movable in a scanning direction and has a row of nozzles for projecting dots of ink onto a sheet which is advanced past the print head in a sheet feed direction which is perpendicular to the scanning direction, the row of nozzles being inclined to the scanning direction and the print head being movable to provide a predetermined minimum distance in the sheet feed direction between dots projected by each nozzle. The nozzles are spaced apart in the sheet feed direction by an integral multiple of the predetermined minimum distance, which integral multiple has a value of 2<n>, wherein n is a positive integer.
Patent GB-2240921-A (GB)
Title: Immunoconjugates and prodrugs and their use in association for drug delivery
Inventor: EATON MICHAEL ANTHONY WILLIAM
IPC: C07D498/04
Filed: 1990-04-05
Abstract: A drug delivery system is described in which an immunoconjugate and a prodrug are used in association with each other to deliver a drug to a host target site such as a tumour. The immunoconjugate comprises an antibody or antibody fragment to which is attached a  beta -lactamase or an active fragment thereof. The prodrug is a cyclic amide derivative of a drug or an unstable precursor thereof in which the drug or precursor is attached to the remainder of the prodrug such that it forms a leaving group which on hydrolysis of the prodrug is eliminated as the active drug or unstable precursor. Particular prod rugs include penicillin or cephalosporin derivatives and other  beta -lactams to which are attached any physiologically active substances, particularly antineoplastic agents, antiviral, antibacterial or antifungal compounds. In use the immunoconjugate is administered first such that it localises at the host target site. Subsequent administration of the prodrug results in  beta -lactamase catalysed hydrolysis of the prodrug at the target site with release of the active drug or unstable precursor.
Patent GB-2253953-A (GB)
Title: Battery operated stapler drive circuit
Inventor: GOLDNER SANDOR
IPC: H02M9/04
Filed: 1991-03-19
Abstract: A first closure of a manual switch 60 places the stapler in a ready state, a second closure drives armature 99 and all subsequent closures drive armature 99 if they occur within a period set by timer 132, otherwise the stapler reverts to a standby state requiring two switch closures to drive armature 99. The first closure sets a bistable 58 causing astable 66 to drive inverter 86, 88, 90, 92, 94, thereby charging capacitor 98. A zener 100 conducts when capacitor 98 is sufficiently charged thereby operating power saver 104 which inhibits gates 82, 84 so that the inverter stops charging capacitor 98. Power saver 104 also energises ready lamp 140 and enables gate 114 so that the next closure of switch 60 resets timer 132 and discharging capacitor 98 into armature 99 resulting in gates 82, 84 being enabled again so that the inverter recharges capacitor 98 ready to drive armature 99 again on the next switch closure. If timer 132 times out, bistable 58 is reset and the circuit reverts to the standby state with inverter drive astable 66 inhibited, thus again requiring two closures of switch 60 to activate armature 99. <IMAGE>
Patent GB-2256257-A (GB)
Title: A liquid level control valve
Inventor: JONES MARTYN NEIL
IPC: F16K31/385
Filed: 1991-05-31
Abstract: A liquid level control valve (10, 60, 90) in which a valve closure member (34, 68, 105, 106) cooperates with a seating (30, 72, 97, 98) to control a flow of liquid between an inlet (14, 74, 91, 92) and outlet (16, 76, 93, 94), the closure member has a first magnetic element (36, 66, 113, 114). A second magnetic element (48, 64, 11, 112) is connected to a float (44, 62, 109, 110) and the magnetic elements cooperate so that the float with second magnetic element draws the closure member from the seating. One version of the valve in a double form (Fig. 4) can be used to cause a pair of inlets to be closed off in the event of an overflow. The valve can close downwardly or upwardly.
Patent GB-2256593-A (GB)
Title: Game apparatus.
Inventor: CLEMENTS IAN KEITH
IPC: A63F7/06
Filed: 1991-06-15
Abstract: A game apparatus (10) for playing a game based on a field game such as cricket, comprises a playing surface (11), a bowling device (22) to bowl balls (23), and a batting device (24) which includes a bat and means for a player to manipulate the bat to hit the ball. The bowling device comprises a pair of contra-rotatable wheels, the axes of rotation of which are spaced apart a distance such that a ball fed between the wheels is carried to a point of delivery. <IMAGE>