baber/WOPTO huggingface dataset:
Patent GB-1508889-A (GB)
Title: Unsaturated phosphinates process for preparing them and their use
IPC: D06M13/02
Filed: 1975-10-17
Abstract: 1508889 Phosphinates HOECHST AG 17 Oct 1975 [19 Oct 1974] 42717/75 Heading C2P The invention comprises compounds of formulae Ia and Ib wherein X is Cl, Br or OH, R 1  and R 2  are each C 1-8  aliphatic hydrocarbon (optionally substituted by Cl, Br, CN, OR<SP>4</SP>, CO 2 R<SP>4</SP> or CON(R<SP>4</SP>) 2  where R<SP>4</SP> is H, C 1-8  alkyl, or C 2-8  alkenyl, the latter optionally being substituted by Cl, Br or OH); alternatively R 2  is or where Y is Cl, Br, OH or C 2-8  alkoxy (optionally substituted by Cl, Br or OH), Z is a C 1-8  alkylene, phenylene or xylylene group (optionally substituted by Cl, Br or OH) and R<SP>3</SP> is H or Me. Preparation of the above is from glycidyl acrylate or methacrylate by reaction either (a) with a compound II or (b) with a compound IV optionally followed by compound V Compounds of formulae and (where X is Cl or OH) are prepared by reacting EtMeP(O)(X) with propylene oxide. Compounds Ia and Ib are used for flameproofing fibrous materials, e.g. textiles.
Patent GB-1384262-A (GB)
Title: Rubbery copolymer
IPC: C08L23/16
Filed: 1972-01-20
Abstract: 1384262 Semi-cured olefin-copolymer rubbers UNIROYAL Inc 20 Jan 1972 [20 Jan 1971] 42721/74 Divided out of 1384261 Heading C3P Rubbery copolymers of ethylene and at least one monoolefin of formula CH 2  = CHR where R is C 1-12  alkyl, with or without at least one copolymerizable polyene, semi-cured to a gel content of at least 30 weight per cent but less than 90 weight per cent as measured by immersion in cyclohexane for 48 hours at 73 F., may be prepared by heating the copolymer with an appropriate proportion of a curative until the curative is exhausted, under static conditions, or under dynamic conditions, e.g. while masticating the copolymer. The preferred rubbers are derived from ethylene and propylene, optionally with hexadiene-1,4, dicyclopentadiene, methylene norbornene, ethylidene norbornene, cyclooctadiene or methyltetrahydroindene. Curing may be effected with peroxides, azidoformates, aromatic polyazides, aldehyde/amine reaction products, substituted ureas, thiazoles, sulphenamides, thiuram disulphides, quinone dioximes and sulphur. Examples describe the semi-curing of ethylene/propylene/dicyclopentadiene rubbers with (1 and 4) 2,5-di-(t.butylperoxy)-2,5- dimethyl hexane and (3) benzoyl peroxide; of (2) ethylene / propylene / 5-ethylidene-2-norbornene rubbers with 2,5-di(t.butylperoxy) - 2,5-dimethylhexane with and without zinc oxide, tetramethylthiuram disulphide or 4,4<SP>1</SP>-dithiodimorpholine; and of (5) ethylene/propylene rubber with p,p<SP>1</SP>-oxybis-(benzenesulphonylazide).
Patent GB-1088719-A (GB)
Title: Improvements in or relating to modulating circuit arrangements
IPC: H03C1/54
Filed: 1965-10-08
Abstract: 1,088,719. Inverting. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Oct. 8, 1965 [Oct. 22, 1964], No. 42787/65. Heading H2F. [Also in Division H3] A power amplifier for use in the modulating system described in Specification 1,082,325 comprising a pair of electronic switches 531 and 532 connected in feed paths from potential sources U31 and U32 to a resonant load LCR, the switches being controlled by width-modulated pulses to give an amplitude modulated sine wave output, is characterized by the provision of auxiliary electronic switches H31 and H32 which protect S31 and S32 from surge voltages produced by the inductance L. It is arranged that H31 is conductive except when S31 conducts and H32 is conductive except when S32 conducts. Diodes D31, D32 in series with H31 and H32 have the same pass directions as their associated transistors which they protect from reverse voltage, and diodes D33, D34 ensure that reverse voltages are applied across the diodes D31 and D32 instead of across the transistors. Diodes D33 and D34 may be replaced by resistances, and all the diodes D31-D34 may be omitted if thermionic valves or four-layer semi-conductor diodes replace the transistors H31 and H32. The diodes G31 and G32 protect S31 and S32 under abnormal conditions. In a modification, Fig. 5 (not shown), a single potential source U5 is connected alternately by S51 and S52 to two halves of an input winding of a transformer T5 feeding the load; the auxiliary switches H51 and H52 and their associated diodes are connected across the two halves of the input winding. In another modification, Fig. 6 (not shown), a potential source U6 feeds a bridge circuit including four switching devices S61-S64, and the auxiliary switches H62 and H63 are connected across the output diagonal of the bridge. In further modifications, Fig. 7 and 8 (not shown), the auxiliary switches are connected in series with their respective main switches, diodes being used to connect the junctions to one end of the load or output circuit.
Patent GB-1020657-A (GB)
Title: Improvements relating to solvent extraction
Inventor: WADDINGTON WRIGHT
IPC: B01D11/02
Filed: 1964-10-20
Abstract: Phenols and cresols are extracted from carbolic acid obtained from coal tar distillation by passing the latter in series through a plurality of main extraction stages (E1, E2, E3 . . . En) in each of which it is extracted by an aqueous solution of sodium salts of tar acids in a mixer-settler, and passing toluene in series through a plurality of main regeneration mixer-settler stages (R1, R2, R3 . . . Rn) in each of which it is employed to extract the phenols and cresols from the aqueous solvent separated from respective stages En, Rn-1, En-2 . . . E1 which is thereafter recycled to its respective main extraction stage. Fig. 5 (not shown) illustrates a system containing 5 extraction-regeneration cycles in which each cycle employs a different first solvent.  Fig. 6 (not shown) illustrates a system in which each extraction-regeneration cycle comprises intermediate extraction stages.ALSO:A component is extracted from a liquid feed-stock by passing the feedstock in series through a plurality of main extraction stages (E1, E2, E3 . . . En) in each of which it is extracted by a first solvent in a mixer-settler, and passing a second solvent through a plurality of main regeneration mixer-settler stages (R1, R2, R3 . . . Rn) in each of which it is employed to extract the component from the first solvent separated from respective stages En, En-1, En-2 . . . E1 which is thereafter recycled to its respective main extraction stage.  The second solvent may pass in series through all the main regeneration stages but may if desired be withdrawn after a number of main regeneration stages and a second stream of the same or a different second solvent introduced into the remainder of the main regeneration stages. Fig. 5 (not shown) illustrates a system containing 5 extraction-regeneration cycles in which each cycle employs a different first solvent.  Fig. 6 (not shown) illustrates a system in which each extraction-regeneration cycle comprises intermediate extraction stages.  The invention may be applied to the extraction of phenols from carbolic oil obtained from coal tar distillation using as first solvent aqueous solutions of sodium salts of tar acids of various concentrations and as second solvent, toluene, and to the separation of paraffins and aromatics.
Patent GB-962065-A (GB)
Title: Coffee making machine
IPC: A47J31/10
Filed: 1962-11-13
Abstract: 962,065. Coffee-making apparatus. BUNN CAPITOL CO. Nov. 13, 1962 [July 10, 1962], No. 42824/62. Heading A4D. [Also in Division B1] Coffee making apparatus comprises support means 11-13, a hot water basin 53 having a discharge opening 56 communicating with a spray head 64 adapted to spray hot water from the basin 53 over an area there-below, a funnel 84 on the part 13 of the support below the basin 53 having a discharge opening 88, a filter 73 in the funnel 84 for receiving ground coffee 71 over which hot water is sprayed, grill means 75 spacing the filter from the inner surface of the funnel and a beaker on the support below the opening 88 of the funnel 84 for receiving coffee extract. The spray head 64 comprises an apertured flexible diaphragm allowing the water to flow in several streams 68 on to the coffee 71. The filter 73 (see Division B1) may be supported by a frusto conical wire grill 75 in funnel 84 or by a conical wire grill 117 with a wire grill adapter 123 in a funnel 111. As shown, the apparatus comprises upper and lower cabinets 11, 12 spaced by a three sided frame 13, within which, on each side of the coffee making unit, are provided a support for a spare funnel with a charged filter. A heating unit 26 is mounted in the cabinet 12 upon which the beaker 90 is placed to receive the coffee extract and two additional heating units are provided to heat cold water for replenishing the basin 53. Water vapour from the streams 68 and from the upper surface of the water in the basin 53, is allowed to escape via a flue 99 and opening 105. Ventilating louvers are provided in the cabinets 11, 12 and frame 13. Specification 932,979 is referred to.
Patent GB-1120579-A (GB)
Title: A distributor for fluids
IPC: B01D17/02
Filed: 1966-09-26
Abstract: 1,120,579. Distribution and separation of liquids; electrostatic separators. PETROLITE CORP. 26 Sept., 1966 [18 April, 1966], No. 42937/66. Headings BID, B1M and B2J. An emulsion treater has an emulsion distributor in the form of an inverted horizontally disposed trough 30 submerged in the body of separated liquid which has an interface at 44, a horizontal row of openings 40 spaced along at least one of the side or top walls of the trough providing an outlet for the emulsion fed into the trough through an inlet above its open bottom, the interface between the emulsion and the denser separated at liquid being maintained at a level below the open bottom and the row of openings. The treater may have a pre-treatment gas separation chamber 21, a foraminous electrode arrangement 50, 51 coalesces dispensed particles of the denser liquid in the upper portion of the treater. The lower electrode 51 is engaged by high voltage a.c. rippled by a transformer 60. The'treated separated liquids are withdrawn through valved outlets 48 and 77, any solids collecting in the pretreatment chamber 21 being removed through outlet 80 and gas through outlet 82. Two rows of openings may be provided with the internal trough interface being below the level of at least one of the rows.
Patent GB-1515178-A (GB)
Title: Differential pressure switch
IPC: H01H35/38
Filed: 1975-10-20
Abstract: 1515178 Pressure-operated switches DRESSER INDUSTRIES Inc 20 Oct 1975 [4 Dec 1974] 42977/75 Heading H1N A pressure differential switch assembly comprises an electric switch 18, an actuator 30 movable against a spring 26 for operating switch 18, and a differential pressure module 12 which supplies a force to the actuator depending on the difference between the pressures applied at fluid inlets 37, 39 in a body 34 and acting on opposed diaphragm-piston assemblies 66, 70 and 92, 90 located on either side of the body 34. The pistons are carried by a framework comprising beams 76, 100 and bolts 104 which serves to transmit the force to the actuator. The force due to spring 26 can be preset by a cap 28.
Patent GB-1330671-A (GB)
Title: Porous zinc-mercury structures
IPC: H01M4/06
Filed: 1970-09-08
Abstract: 1330671 Porous Zn - Hg electrodes P R MALLORY & CO Inc 8 Sept 1970 [8 Sept 1969] 42983/70 Headings C7D and C7X A Zn - Hg body containing 4-10% Hg, with interlocking rod shaped Zn particles and a porosity greater than 50% is made by heating a mixture containing the rod shaped Zn particles to 405 - 420‹C. The preferred mixture contains in parts weight. 75 Zn e.g. as ZnSO 4 , 16-17 NaCl and 4-6À5 Hg Cl 2 . The Zn which is + 60 mesh is added to an aqueous solution of the Hg Cl 2 , pressed at 1000 p.s.i. and sintered in an argon atmosphere. The mixture can also contain K 2 SO 4 , Na 2 SO 4 , ZnCO 3  and NH 4 CI.
Patent GB-1327217-A (GB)
Title: Fuel cell batteries
IPC: H01M8/24
Filed: 1970-09-10
Abstract: 1327217 Fuel cells SIEMENS AG 10 Sept 1970 [11 Sept 1969] 43438/70 Heading H1B A fuel cell battery comprises a stack of first components one of which is shown in Figs. 1, 3, Fig. 3 being a cross-section through the line C, D of Fig. 1, the upper and lower ends of the stack being formed, respectively, by the halfeell or terminal components shown in Figs. 4, 5. In manufacture, the stack of components is subjected to pressure and resin is cast thereabout whilst leaving the apertures 13, 14 in lugs 1...4 clear for the flow of reactants. Each first component comprises diaphrams 5, 6, an anode 7, cathode 8, support structure 9, spacer 10 and sheet metal conductor 11, these parts being held together by frames 12a, 12b by a vulcanizing solution applied to the opposed faces of the frames, diaphragms and metal conductor. The terminal component, Fig. 4, comprises a diaphragm 20, sheet metal conductor 21, support structure 17, anode 18 and frame 19. The terminal component, Fig. 5, comprises a diaphragm 22, sheet metal conductor 23, spacer 24, cathode 25 and frame 26. Suitable materials for the several parts are: diaphragms, asbestos paper; sheet metal conductors, nickel or acid resistant steel; frames, elastomer, e.g. neoprene; electrodes, pulverous catalyst material consolidated by binders, the anodes being of Raney nickel or platinum; alternatively, the electrodes may be of gauge construction; spacers, of gauge. The reactants comprise an electrolyte consisting of hydrazine dissolved in KOH and oxygen, the electrolyte being conveyed through the apertures 14 in lugs 1, 3 and oxygen through the apertures 13 in lugs 2, 4, the gas reaching the cathodes 8 through channels 15 and the electrolyte reaching the anodes 7 through channels 16. The components of Figs. 4, 5, also have apertures and channels for the electrolyte and gas.
Patent GB-1093869-A (GB)
Title: A rectangular storage container for transparency slides
IPC: G03B21/54
Filed: 1966-09-29
Abstract: 1,093,869. Container for transparencies. S. A. LARSSON. Sept. 29, 1966, No. 43556/66. Heading B8P. A transparency container comprises a container 1 (Fig. 1) and a cover 1<SP>1</SP>, each having a skirt 4 along half the periphery of the top edge, which skirts engage the non-skirted portions 5 when the cover 1<SP>1</SP> is placed over the container 1, relative movement between which is prevented by co-operating locking shoulders 6 and recesses 7. The transparencies 3 may be held between parallel ribs 2. Handles 8 may be provided on the container 1 and cover 1<SP>1</SP>.
Patent GB-956995-A (GB)
Title: Knuckle-type railway coupling
IPC: B61G3/06
Filed: 1961-12-05
Abstract: 956,995. Railway vehicle automatic couplings. NATIONAL CASTINGS CO. Dec. 5, 1961 [Dec. 6, 1960], No. 43560/61. Heading B7T. An automatic knuckle type coupler, Fig. 1, comprising a locklift assembly 4 which is operated to lift the lock by rotating a rotor member 6, is provided with a U-shaped key 8, Figs. 2, 3, which is mounted to slide vertically on flats 22, 24 on the shank 12 of the rotor and is retained thereon by a bolt 20 or cotter. In the normal non-inverted position of the coupler the key rests on the shank 12 as shown in Fig. 2, but when the coupler is inverted as in tippling, the key slides to engage a lug 19 on the head, Fig. 3, and by preventing the locklift gear from effectively rotating, stops the lock from dropping downwardly to a lock-set position from which the vehicles could uncouple. In a modification, Fig. 6, the key is provided with a lug 42 which when the coupler is inverted drops into a recess 44 in the head and prevents the member 6 from rotating in either direction. The key has its limbs 10 of different thicknesses which engage correspondingly dimensioned flats so that it may not be incorrectly placed on the shank.
Patent GB-1010298-A (GB)
Title: Colour television receivers
IPC: H04N9/27
Filed: 1962-11-19
Abstract: 1,010,298. Cathode-ray tube circuits. RADIO CORPORATION OF AMERICA. Nov. 19, 1962 [Nov. 20, 1961], No. 43713/62. Heading H4T. In a colour television receiver utilizing a multi-gun colour picture tube of the " penetration " type (i.e. a tube in which the reproduced colour is determined by the velocity of the electrons in the scanning beam) precise registration of the different rasters is brought about by adjustment of the cathode potential of one or more electron guns relative to the final anode potential. As shown, a " penetration " type tube 54 is provided with threee guns 58, 60, 62 associated respectively with the " red," " green " and " blue colour component signals, the electron beams from two of the guns 58 and 60 being screened over different lengths by screens 68 and 66 so that having regard to the fact that the three beams are accelerated through different potentials all the rasters produced by the common scanning are in register on screen 56 within the limits of the tube manufacturing tolerances. The accelerating voltages for the guns are produced by maintaining the final anodes of all guns at the ultor potential (derived by rectification in 78 of the voltage across the line output transformer winding 44) and connecting the cathodes of the guns to different potentials in accordance with the beam velocity requirements for the production of the required colours. In the case of the cathode of gun 58, a fixed potential (+) H.V., less in absolute value than the (+) ultor voltage and derived by rectification in 80 of a portion of the voltage across winding 44 is utilized. This determines a fixed raster size and the rasters produced by the other two guns are made to have the same size by adjusting the actual cathode voltage of their guns. As shown, the cathode voltage for gun 60 is derived from the B-boost voltage (derived from transformer 46 via rectifier 84) and its actual value adjusted by potentiometer 92 whilst that for the cathode of gun 62 (which requires to be negative with respect to earth) is derived by rectification in 98 of the negatively going pulses in winding 96 of transformer 46 and the actual value determined by adjustment of the series connected B-boost voltage by means of potentiometer 108. Where the tube manufacturing tolerances allow it registration of all rasters may be effected by variation of the size of one raster only.
Patent GB-978524-A (GB)
Title: Improvements in ignition timing devices
IPC: F02P5/10
Filed: 1962-11-21
Abstract: 978,524. Timing ignition. ROBERT BOSCH G.m.b.H. Nov. 21, 1962 [Dec. 15, 1961], No. 43994/62. Heading F1B. [Also in Division H2] An ignition timing device for internal combustion engines comprises an interrupter support plate 11 eccentrically swingable in a housing 10 relatively to an interrupter cam 28 in dependence upon an operating condition of the engine and a spring 13, 14 biasing the interrupter plate, the spring being a two-armed spring which is mounted on a bearing spindle 12 about which the interrupter support plate is swingable and one arm of the spring bearing against the wall of the housing and the other against an adjustable support 16 on the interrupter plate as described. The interrupter support plate is controlled by engine suction by a diaphragm (not shown) in the housing 20.
Patent GB-1355468-A (GB)
Title: Data receiving apparatus
IPC: H04L27/14
Filed: 1972-09-25
Abstract: 1355468 Digital transmission; FSK receivers NATIONAL CASH REGISTER CO 25 Sept 1972 [4 Oct 1971] 44132/72 Heading H4P A carrier detection latch circuit for an F.S.K. receiver is set rapidly at the beginning of a transmission due to the influence of an initial high energy mark signal which is less subject to noise interference than a lower energy space signal. Mark signals of say 1À2 kHz producing higher energy than space signals of 2À2 kHz are applied to a F.S.K. receiver the output from which passes through gate 14 to a utilizing device over line 13. Input signals are also applied through amplifier 15 and 2À2 kHz attenuating filter to a 1À2 kHz attenuating filter 21 and rectifier 22 the output from which provides a D.C. signal proportional to noise; 1À2 kHz pass filter 23 and rectifier 24 develop a D.C. signal proportional to the mark signal which is applied to comparator 25 connected to the set input of latch flip-flop 27. An AGC feedback amplifier 16 and rectifier 31 supplies one input and rectifier 22 supplies a second input of comparator 26 connected to the reset input of flip-flop 27, the output from which enables gate 14. With no carrier on line, comparator 25 is only held by noise input; when a mark signal is received through 23, 24, flip-flop 27 is set thus enabling gate 14. Flip-flop 27 is reset when the carrier level drops sufficiently for a period greater than the 15 m.sec. delay set by circuit 16 thus disabling gate 14 preventing noise from line 10 passing to the utilizing device.
Patent GB-1286855-A (GB)
Title: Improvements in flip-flop lightning arrester with reduced protective level
IPC: H02H9/06
Filed: 1969-09-09
Abstract: 1286855 Lightning arresters GENERAL ELECTRIC CO 9 Sept 1969 [16 Sept 1968] 44426/69 Heading H2H A lightning arrester comprises parallel columns of spark gaps and valve resistors, in series with a common valve resistance. Intermediate points in each column are connected by a resistor. The arrangement provides an arrester with a reduced protective level which is suitable for use with D.C. systems. In the arrester shown in Fig. 1, identical columns 4, 4<SP>1</SP> are connected in series with valve resistor discs VR3-VR10. The columns are linked by resistors R1, R2 which include between them equal fractions of the total, number of current-limiting gaps G1-G10, G<SP>1</SP>1-G<SP>1</SP>10 in each column, and of the total number of valve resistors VR1-VR10 in each path through the arrester. In operation, if it is assumed that the column 4<SP>1</SP> has brokendown and is conducting current, then the voltage across gaps G5 and G6 in the other column 4, which is not conducting, will be equal to the voltage across gaps G<SP>1</SP>5 and G<SP>1</SP>6 and resistors VR<SP>1</SP>1 and VR<SP>1</SP>2, which is a fixed proportion of the total voltage across the arrester independent of the current flowing. As the gaps G<SP>1</SP>5, G<SP>1</SP>6 build up voltage, at some point the gaps G5, G6 will spark over and the column 4<SP>1</SP> will clear. The number of gaps in each column between resistors R1 and R2 is chosen so that when gaps G5, G6 spark over, the increased voltage across the other gaps in column 4 causes them also to spark over. Subsequently, the two columns conduct alternately until the overvoltage condition is cleared. In a modification, Fig. 2 (not shown), triggered gaps are used in each column, and only a single resistor connects the two columns. Reference has been directed by the Comptroller to Specification 1,148,151.
Patent GB-956952-A (GB)
Title: A direct current motor control device
Inventor: TICE WILLIAM FLEET
IPC: H02K11/00
Filed: 1962-11-26
Abstract: 956,952. Centrifugal switches; inertia switches. BARBER-COLMAN CO. Nov. 26, 1962. No. 44568/62. Heading H2B. [Also in Division G3] A D.C. motor has its forward speed governed by a centrifugal switch 24 which is shortcircuited by an inertia switch 25 when the motor is operated in the reverse direction. Both switches are mounted upon insulated disc 26 having a sleeve fitted over the commutator segments. Contact 35 of the centrifugal switch is mounted on spring strip 37 and normally engages contact 34 fixed to adjusting screw 36, a shunt resistor 38 reducing sparking. When the motor is started in the forward direction, a metal ball 41 is disengaged from contact 39 so that the switch 25 is open. In the reverse direction, the ball engages contacts 39, 40, to close the switch and short-circuit the contacts 34, 35. The inertia switch is stabilized in its open or closed position since the ball-race has its ends further from the axis of rotation than its own mid-portion.