baber/WOPTO huggingface dataset:
Patent GB-1181449-A (GB)
Title: Improvements in or relating to thermo compensating electrical conductors.
IPC: H02G5/00
Filed: 1967-12-28
Abstract: 1,181,449. Conductors. COMPAGNIE GENERALE D'ELECTRICITE. 28 Dec., 1967 [28 Dec., 1966], No. 58866/67. Heading H1A. [Also in Division F2] An electrical conductor comprises a metal strip in which bending areas are formed to take up longitudinal stresses exerted on the strip so that the conductor may be deformed in its plane in response to thermal expansion or contraction without any change in its overall length when its ends are fixed. As shown, the bending area is formed by making two sets of parallel slots 2 in the conductor blank (Fig. 1, not shown) and bending the blank in its plane until the sides of each slot nearly touch each other. Rectangular notches may be cut out of the blank abreast of the slots so that the overall width of the conductor remains unchanged (Figs. 3, 4, not shown). Alternatively, the conductor blank may be cut to a zig-zag shape and sets of slits are cut parallel to the sides of the angles thus formed (Figs. 5, 6, not shown). The conductor may have a coating, or be provided with inserts in the form of wire, of super-conductive material (Figs. 10, 11, not shown), and a number of such conductors may be stacked within a tube in such a way as to form a central duct for cryogenic fluid (Fig. 7, not shown). Alternatively, the conductors may be stacked in groups insulated from each other to form a polyphase cable. The conductors are stacked with their slotted portions in register. The conductors may be arranged as a coaxial cable. For conventional applications, the conductor may be standard grade copper or aluminium; electrolytic aluminium or copper is used for hyperconductivity applications, and, for superconductors, electrolytic aluminium coated with lead, niobiumzirconium, niobium-titanium or niobium-tin alloys.
Patent GB-1402190-A (GB)
Title: Digital to analogue converter
IPC: G01D5/245
Filed: 1972-12-20
Abstract: 1402190 D/A converters INDUCTOSYN CORP 20 Dec 1972 [27 Dec 1971] 58966/72 Heading H3H A D/A converter provides an output current having an amplitude proportional to a trigonometric function of an angle and comprises means for providing a track of signal pulses at a particular frequency, and of pulse duration proportional to the angle, and a driving circuit responsive to the signal pulses to provide to an output transformer a train of first and a train of second pulses, the first train of pulses having a rectangular waveform and a duration equal to that of a signal pulse, and the second pulses having an amplitude equal to that of the first pulses and an opposite polarity thereto, the second pulses being provided during respective intervals between successive first pulses. As shown, clock pulses from a source 21 are applied in unison via a circuit 7 to two frequency dividing counters 101, 101<SP>1</SP> each providing straight and inverted outputs to two divide by two stages 104, 105, 104<SP>1</SP>, 105<SP>1</SP>. The outputs at 52, 55 are identical square waveforms, one being the inverse of the other as are those at 51, 54 but 90 degrees out of phase. The digital input is a number of serial pulses at 6, the arrival of each pulse inhibiting the counter 101 for 1 clock pulse whereby a phase lag of # = (n/N x 360) degrees results between the corresponding pulse tracks 51, 54; 52, 55, where n is the number of pulses and N is the divisor of the counters. The four pulse trains thus derived are taken to a logic circuit 17 and via gates 110-119 activate current drive circuits 130, 132, 133, 135 to pass current bilaterally through two primary windings 44, 46 of a variable coupling transformer 42 as shown. The amplitude of the A.C. in winding 44 is proportional to cos # and that in winding 46 to sin #. This is achieved by the logic circuit causing the current driver circuits to pass duration modulated constant amplitude pulses of alternate polarity through the respective windings. In this embodiment the output signals are symmetrical and the power from supply 124 is passed via further drive circuits 131, 134 to a dummy load during periods of zero current in a winding. A simplified non-symmetrical embodiment is also described, Fig. 4 (not shown).
Patent GB-1359967-A (GB)
Title: Metallic articles having a solid surface-lubricant coating
IPC: C10M169/00
Filed: 1972-12-21
Abstract: 1359967 Electro-phoretic coating GENERAL MOTORS CORP 21 Dec 1972 [24 March 1972] 59039/72 Heading C7B A metallic article, e.g. a gear, spline, screw or bolt, is provided on at least its wear surface with an adherent, abrasion resistant, solid  surface-lubricant coating at least 0À0005 inch thick comprising 60 to 73wt per cent Ag and balance Nb Te 2 , preferably applied electrophoretically from a coating bath of a solution of 55-65wt per cent isopropanol and 35-45wt per cent nitromethane to which is added 15 to 20 g/l Ag powder and 7À5 to 10 g/l Nb Te 2  powder and 1À5 to 3À5 g/l cobalt nitrate-prolamine protein as binder. The article may be of refractory and heat resistant metal or alloy; e.g. Mo, Nb, W, Ta, Ti or alloy thereof; ferritic, martensitic or anstinitic steel containing 12-27% Cr or 25-40% Ni. Other alloys are Specified.
Patent GB-1389209-A (GB)
Title: Sulphur dioxide removal
IPC: C08F8/00
Filed: 1971-12-20
Abstract: 1389209 Removing SO 2  from gases ROHM & HAAS CO 20 Dec 1971 [28 Dec 1970 22 Nov 1971 6 Dec 1971] 59080/71 Heading B1L A macroreticular cross-linked, oxidation-resistant, heterocyclic nitrogen, ion-exchange resin is used to remove sulphur dioxide from gases before venting them to the atmosphere. If the gaseous mixture contains sulphuric acid mist and/or SO 3  this may be removed by pretreatment with ah ion-exchanger. The regeneration of the SO 2  absorber is usually by heating but an alkaline chemical treatment may be used from time to time. The nitrogen-containing heterocyclic monomeric precursors exemplified are vinyl pyridines, quinolines, isoquinoline, pyrimidine, pyrazine, triazine pyrano pyrrole, indoxazine, benzoxazole, quinazoline, naphthyridine, pyrido pyridines and acridine and these can be cross linked with a large list of ethylenically unsaturated monomers. Sulphonic acid and quaternary ammonium groups may also be included in the resin.
Patent GB-1218756-A (GB)
Title: Method of filling containers
Inventor: RAIT JOSEPH MURRY
IPC: B65D83/14
Filed: 1967-12-29
Abstract: 1,218,756. Hair dressing. J. M. RAIT. 29 Dec., 1967, No. 59157/67. Heading A5B. [Also in Divisions B8, C4 and C5] An aqueous foam hair dressing:- Stearic acid; anhydrous lanolin; isopropyl myrestate and palmitate; benzyl alcohol; light mineral oil; polyvinylpyrrolidone; triethanolamine.
Patent GB-1331550-A (GB)
Title: Cathode-ray tube of the indexing type
IPC: H04N9/24
Filed: 1971-12-23
Abstract: 1331550 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 Dec 1971 [29 Dec 1970] 59964/71 Heading H4F [Also in Divisoin H1] In a colour television display tube of the index type, the width of the index strips increases from a central area to the edges in order to equalize the signal pick up from them by an external photo-multiplier tube. The increase is preferably by a factor of at least 1À5, and in one example the centre strips are 0À1 mm. wide at their centres increasing to 0À15 mm. wide at their ends, and the edge strips are 0À15 mm. wide at their centres increasing to 2 mm. wide at their ends. The screen may comprise phosphor strips interleaved with inactive strips and covered with a reflective layer on which the index strips are located in positions overlying alternate inactive strips. The width of the phosphor strips may decrease towards the edges.
Patent GB-1247717-A (GB)
Title: Electronic phasing system
IPC: H02P5/52
Filed: 1968-12-19
Abstract: 1,247,717. Synchronizing facsimile machines. XEROX CORP. 19 Dec., 1968 [24 May, 1968], No. 60368/68. Heading H2L. First and second signals of the same nominal frequency are brought into phase by periodically producing a pulse whose duration corresponds to the phase error, producing a first ramp signal having the same duration as the pulse followed by a second ramp signal of opposite slope which is generated until a reference voltage level is reached, and producing a correcting signal during the time that both ramp signals exceed said reference level, and using said correcting signal to change the frequency of said first signal by a fixed amount for the duration of the correcting signal. The invention is applied to the initial synchronization of a facsimile receiver 11 with a transmitter 10, both of which are driven by local crystal oscillators. Pulses from each machine are produced by contacts revolving with the read/write head turrets, or by magnetic or capacitive pick-ups, and these, termed " backstroke pulses," are compared in a circuit 28 in which they respectively set and reset a flip-flop which thus produces pulses whose length represents the phase error. During each pulse a capacitor is charged either by a constant current circuit (Fig. 5, not shown) or a constant voltage circuit (Fig. 8, not shown), following which it is discharged (at constant current in Fig. 5) either until the next error pulse is received or until it is discharged to the reference (e.g. ground) level. During the time that the charge is above the reference level a rectangular correcting pulse is produced. Thus, this correcting pulse is produced once during a " sampling " period corresponding to the-rotational speed of one of the turrets (e.g. twice per revolution when the pickups are spaced 180 degrees apart) and has a duration proportional to the error up to a maximum corresponding to the sampling period. This pulse lowers the frequency of the receiver oscillator by a fixed amount for the duration of the pulse and this is chosen so that synchronization cannot occur in one step. This is to prevent overswing and allows for a practical acceleration rate. The constants of the capacitor circuit are selected so as to produce a correcting pulse of approximately half the duration needed to correct the error fully on each occasion. It is thus necessary only to correct for phase lead at the receiver, but an inverse arrangement could be provided to correct for lag also. The facsimile transmitter and receiver are identical machines whose respective read or write heads are selected by switching. The a.m. information signals are converted to f.m. for transmission via a standard telephone instrument and line, and are converted back to a.m. to operate the receiver. The start of transmission of information is delayed for 15 seconds for synchronization.
Patent GB-1337400-A (GB)
Title: Electric incandescent lamp
IPC: H01K1/50
Filed: 1970-12-23
Abstract: 1337400 Electric incandescent lamps IWASAKI DENKI KK 23 Dec 1970 [29 Dec 1969] 61258/70 Heading H1F A tungsten-halogen lamp is filled with a mixture containing an inert gas, boron tribromide and hydrogen. The amount of boron tribromide is preferably in the range of 0À8 x 10<SP>-7</SP> to 2À0 Î 10<SP>-5</SP> gram.-molecule per c.c. of bulb volume and the mole ratio of hydrogen to boron tribromide lies between 0 and 9.
Patent GB-1268338-A (GB)
Title: Fire detector
Inventor: OZAWA AKIRA
IPC: G08B17/00
Filed: 1970-12-23
Abstract: 1,268,338. Fire detectors. NITTAN CO. Ltd. 23 Dec., 1970 [16 Jan., 1970 (2)], No. 61264/70. Heading HlN. In a fire detector having a housing 1 and a base socket 2 either the housing or socket has an annular transparent or translucent portion within which is a lamp indicating actuation of the detector, whereby the lamp can be seen from any direction. The portion is of acrylic resin and is formed internally or externally with an irregular shape causing multiple reflections.
Patent GB-1223780-A (GB)
Title: Improvements in or relating to gas stoves
Inventor: HIBBERD HENRY CHARLES
IPC: F24C15/00
Filed: 1969-12-22
Abstract: 1,223,780. Cooking ovens. SCOTT BROS. Ltd., and MODERN GAS APPLIANCES Ltd. 22 Dec., 1969 [20 Dec., 1968], No. 62400/69. Heading F4W. In a gas oven having a grill burner 2 mounted in the top of the oven, vents 12 leading from near the grill burner enable the grill to be used with the oven door closed. The vents can be closed for normal oven use. Preferably a cover for the recess 4 in which the grill burner is mounted is supported from rails in the oven sides to close the recess and vents. The cover may be used as a grill pan.
Patent GB-2000308-A (GB)
Title: Optical scanning table
IPC: F16M13/00
Filed: 1978-06-12
Abstract: An optical table for use in scanning an original for photographic reproduction using a laser beam comprises a rectangular framework 16 supported on a rigid support framework (12, Fig. 2 not shown) at only three locations (31); the rectangular framework 16 including a pair of parallel rails 17 along which an optical table 28 is mounted for movement by means of two roller carriages 36 that roll along one rail and a block 51 secured to a bar 57 which carries rollers 61 that engage the other rail. As shown, the table 28 carries optics 91-93 and is driven along the rails by a lead screw 86 rotated by a motor 80. <IMAGE>
Patent GB-2023679-A (GB)
Title: Compacting fibrous stock in a dye basket
IPC: D06B5/14
Filed: 1978-06-24
Abstract: Fibrous stock in a dye basket 10 of the kind which has a perforated cage and a perforated central tube 14, is compacted by placing the stock in the basket so that the stock fills the annular cross-section of the basket and then pressing the stock into the basket by means of an annular presser disc 62 which acts simultaneously on the stock all round the longitudinal axis of the basket. The presser disc 62 is attached to the bottom of a hollow cylinder 58 driven by a hydraulic cylinder 52.
Patent GB-2002602-A (GB)
Title: High voltage cartridge fuse
IPC: H01H85/38
Filed: 1978-07-19
Abstract: A high voltage cartridge fuse for the interruption of currents, is fitted with at least one fuse conductor 6 and at least one auxiliary conductor 3 acting as a parallel current path in case of overloading, wherein said auxiliary conductor is electrically interrupted in at least one place, and in that connecting means 2 are present, mechanically interconnecting the open ends of the auxiliary conductor at the location of the electric interruption. <IMAGE>
Patent GB-2013245-A (GB)
Title: Manufacturing a sintered and forged cast iron
IPC: B22F3/02
Filed: 1978-09-05
Abstract: In a method of manufacturing a shaped component, cast iron powder is moulded and sintered, whereafter the moulded and sintered material is forged into a desired shape and then re-sintered. Copper, aluminium or titanium powder may be added to the cast iron powder. The forging may be effected immediately after sintering while still hot, or the compact may be reheated prior to forging.
Patent GB-2007075-A (GB)
Title: Production of activated feedstuffs or feedstuff mixtures by grinding
IPC: A23K40/00
Filed: 1978-10-12
Abstract: A method of producing activated feedstuffs or feedstuff mixtures in which at least one component is present in the form of grain or small-sized animal or vegetable substances sufficiently hard for grinding, by grinding this substance with the routine addition of other feedstuff ingredients known per se like vitamins, minerals, trace elements, growth-promoting, conserving, taste-imparting and other components, is characterised in that the grinding of at least the one grindable component with simultaneous mechanical infusion of energy is effected by impacting or beating such that the result, apart from the comminuting and homogenizing effect, is activation of this component by changing its fine structure and thus its physico-chemical properties, in particular its ability to react, e.g. to form utilizable albumen by biochemical means. In an embodiment, grain is ground between contra-rotating discs 29, 30 provided with concentric rows of interengaging, non-cylindrical pins 31, 32, 33 and is mixed with chopped fibrous material and is pelletised. <IMAGE>
Patent GB-2009294-A (GB)
Title: An Arrangement of Louvres Slats or the Like
IPC: E06B9/322
Filed: 1978-11-21
Abstract: A louvred arrangement of slats or the like, for example in a venetian blind, which are angularly displaceable for adjusting to their position relative to incident light-radiation, by adjustable support means connected to a twist transmission including a rod 10 parallel with the slats, the angular position of the rod determining the position of the support means and therewith the slats and at least one helically or spirally wound bi-metal strip 13 arranged to turn the part of the transmission connected to the support means in response to a change in the temperature of the ambient air. <IMAGE>
Patent GB-2036626-A (GB)
Title: Riveting station assembly
IPC: B21J15/06
Filed: 1978-12-16
Abstract: A mobile production riveting system comprises a power actuated hand operated "gun" tool for pulling and automatically collecting the mandrels of inserted blind rivets, and associated equipment including power supply, control valve, pressure regulator, vacuum transducer, mandrel retrieval system, hydraulic reservoir, and other support equipment for adapting an air supply to power the hand tool under finger trigger control. <IMAGE>
Patent GB-2012983-A (GB)
Title: Optical waveguides having non- uniform outer jackets
IPC: G02B6/10
Filed: 1979-01-12
Abstract: Orthogonally polarised waves in an optical waveguide are decoupled by providing stress-induced birefringence greater than 5 x 10<-5> in the waveguide. The birefringence is achieved by providing a jacket 33 which is of non uniform thickness which upon cooling exerts a sufficient strain upon the waveguide. A single polarised wave can be supported in such a guide without decoupling. The optical fibre preform shown has a core 31, cladding 32 and outer jacket 33. Optical fibre preforms having an inner core surrounded by a cladding and an outer jacket of non-uniform thickness at least partially surrounding the cladding are prepared. <IMAGE>
Patent GB-2046115-A (GB)
Title: Separating oil and water
IPC: B01D17/04
Filed: 1979-04-11
Abstract: A method of separating a minor phase liquid from a major phase liquid, the liquids being oil and water or vice versa by passing both phases through a coalescing medium such as glass fibre or a hydrocarbon fibre such as polypropylene depending on the particular duty, and occasionally reversing the flow through the medium so that clogging matter is cleaned from the medium. Apparatus for carrying out such a method in which the medium (7) is held in a perforate drum (4) within a housing (2), and the liquids for separation flow through the drum normally from the inside to the outside; reversal of flow through the drum is achieved by applying a low pressure to a duct (16) mounted centrally within the drum, the duct (16) being connected to backflush arms (20) rotatably in contact with the inner surface of the drum. <IMAGE>
Patent GB-2051445-A (GB)
Title: A surveillance system
IPC: G08B26/00
Filed: 1979-05-30
Abstract: A surveillance system comprises a main station and a number of substations 1 which are cyclically interrogated by an address signal emitted by the main station and which respond thereto by emitting a code modulated high frequency signal, each substation 1 being provided with a resettable timer device 9 which after being started delivers after a predetermined first period a control signal to activate an acoustical or optical signalling device 19, 20 and delivers subsequently after a second period a control signal to activate the alarm circuit 3 of the substation 1. In this way the user at a substation can vary the time lapse before further action must be taken and in the event that such action is not taken the alarm circuit 3 is automatically activated. <IMAGE>
Patent GB-2028313-A (GB)
Title: Functionalizing aromatic and heterocyclic substrates
IPC: C07B33/00
Filed: 1979-07-20
Abstract: A method is disclosed for introducing functional groups into the molecule of an aromatic hydrocarbon or of a heterocyclic compound, the method consisting in contacting the substrate to which functional groups are to be attached with molecular oxygen and with a halide ion, a redox couple being present which preferably has a negative standard oxidation potential between zero volt and minus 1.5 volts. The method has great versatility and gives good conversion yields without requiring drastically restrictive reaction conditions.
Patent GB-2059030-A (GB)
Title: Methods of destroying heat meltable records
IPC: F23G7/12
Filed: 1979-09-20
Abstract: Microfiche containing confidential information are placed in an envelope having a heat sealable lining, the envelope and lining having a higher melting point than that of the microfiche. The envelope and microfiche are heated to a temperature sufficient to melt the microfiche, and sufficient also to cause contacting areas of the lining to hermetically seal the microfiche inside the envelope but insufficient to melt the envelope. The heat may come from a halogen lamp and because the microfiche is melted in a sealed envelope, the destruction can be effected at any site for example in an office, without danger from fire or noxious fumes.
Patent GB-2040510-A (GB)
Title: Servovalve
IPC: F15B13/043
Filed: 1980-01-17
Abstract: A pilot valve 11 operated by a linear force motor 18 controls the actuating pressures 35, 36 applied to a main valve 12. Output pressure 31 or 32 from the pilot valve is transmitted to a channel 13 to oppose the input from the motor. The pilot and main valves are supplied by a common inlet 26 and the output pressure from the main valve acts through channels 72, 75 to oppose its operation by the pilot valve. <IMAGE>
Patent GB-2043719-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B55/14
Filed: 1980-03-06
Abstract: An improved device for operating a needle in a sewing machine having a needle-supporting clamp (2) that is guided for sliding movement in a vertical plane by a needle bar (4). The needle bar (4) is pivotably mounted on and depends from an adjustable support (16), which causes the needle bar to automatically align itself and follow the effective path of travel of the needle-supporting clamp (2). The support (16) is mounted on the machine frame (1) and is eccentrically positionable, which provides a means whereby it can be selectively located in a position at which the needle bar (4) depending therefrom will never be subjected to more than a minimum amount of resistance by the needle-supporting clamp (2) during the sliding movement of the clamp on the needle bar. <IMAGE>
Patent GB-2049965-A (GB)
Title: Device for determining filter settings and printing photographic colour negatives
IPC: G03B27/73
Filed: 1980-04-11
Abstract: A device for printing photographic colour negatives, comprising a photocell unit which by means of an optical fibre receives light from an unexposed part of the negative film and measures its colour values. A calculating and setting unit determines the filter settings to be used in printing. The filter adjustments are therefore determined on the basis of the measurements made on the unexposed part of the developed negative.
Patent GB-2048875-A (GB)
Title: alpha -Halomethylaminoacids and Their Preparation
IPC: C07C239/00
Filed: 1980-04-25
Abstract: Compounds of formula I   <IMAGE> wherein X1 and X2 are each hydrogen or fluorine; R1 is hydrogen, alkylcarbonyl, alkoxycarbonyl or aminoalkylcarbonyl, and three of R2, R3, R4, R5 and R6 are hydrogen, the others being selected from hydroxy, methyl and methoxy. Also disclosed is a process of preparing compounds of formula I in which R1 and X2 are hydrogen and X1 is fluorine and R2, R3, R4, R5 and R6 are various combinations of hydrogen, methyl, ethyl, tert-butyl, halogen, trifluoromethyl, hydroxy, methoxy and methylene dioxy by reacting a corresponding benzyl magnesium halide with fluoroacetonitrile and reducing the resultant ketimine salt.