baber/WOPTO huggingface dataset:
Patent GB-1372495-A (GB)
Title: Liquid-impregnated fibrous rollers
IPC: G03D5/06
Filed: 1972-10-18
Abstract: 1372495 Photographic processing rollers YAMAMOTO KOGYOSHO K K 18 Oct 1972 [29 Aug 1972] 48005/72 Heading G2X [Also in Division F2] A roller for applying a liquid (e.g. in a diazo printing process) is made of annular discs 1 stamped from a sheet of cellulose fibre (suitable fibre composition, length and sheet thickness are provided), and then saturated in the liquid, a shaft 5 being then threaded through the discs which are then compressed axially to squeeze out excess liquid, the roller surface then being abraded (e.g. as at 15). A knitted nylon sleeve 16 may be slid over the completed roller. Various preferred dimensions, weights and proportions are included.
Patent GB-1437784-A (GB)
Title: Heat exchange systems
IPC: F24D19/10
Filed: 1972-10-20
Abstract: 1437784 Central heating systems WORCESTER ENG CO Ltd 22 Oct 1973 [20 Oct 1972] 48353/72 Heading F4U [Also in Division H2] A fluid heating system comprising a heat exchanger, such as a domestic central heating and hot water supply system, includes a timing device and a circulating pump, the pump being controllable by the timing device as well as by thermally operable switch and a pressure or flow responsive switch, the pressure or flow responsive switch causing operation of the pump whenever fluid is withdrawn from the system. During an initial, selectable, period a timer T maintains a contact T1 closed, a room thermostat 19 being closed, a manual selector 18 being closed to demand central heating and a thermostat 20; sensitive to the water in the heat exchanger 30 being in its upper position. Under these conditions a relay R is energized so that its contacts R1, R2, R3 assume the positions indicated. Thus the boiler 8 and a circulating pump P are energized but a motorized valve M in the water supply to the radiators 33 is closed. During this period of operation only the water in the heat exchanger 30 is heated so expediting the supply of hot water at taps 32. When the water in the heat exchanger 30 reaches the required temperature the thermostat 20 contact changes over whereupon the motorized valve M opens and water is supplied to heat the radiators 33. When the room temperature reaches a selected level, thermostat 19 opens thereby de-energizing relay R to change the positions of contacts R1, R2, R3 so that the boiler B, the pump P are de-energized and the valve M closed. Whilst the system is in this condition opening of a hot tap 32 to withdraw hot water from the system causes contacts of a pressure or flow sensitive switch 25 to close so as to re-energize the pump P causing circulation of the water through the boiler B and the heat exchanger 30, the boiler serving as a heat sink. The pump P is also energizable over the switch 25 during periods when the timer T maintains the contact T1 open. L1, L2 are lamps indicating "ON" conditions of the central heating and hot water respectively. In other embodiments a boiler thermostat is provided and the selector 18 incorporated in the timer T.
Patent GB-1085705-A (GB)
Title: Flat contact unit
IPC: H01H15/10
Filed: 1964-11-27
Abstract: 1,085,705. Contact members for switches. W. HOLZER. Nov. 27, 1964 [Nov. 27, 1963], No. 48355/64. Heading H2B. A contact unit comprising a flat stamped member 1 has one end 3 formed as a rolling pivot and this is located in a guide member 5, where it engages a surface 4 which is inclined in relation to the perpendicular to the line of thrust of a return spring 8. The outer end 16 of the strip is bent so as to be engaged by a cam or other actuating member and a contact 2 is provided to engage a fixed contact 11. When the contacts are closed, the spring 8 presses the end portion 3 to the lowest part of the slope 4 against a vertical stop-face. However, when the contact arm is raised, the configuration of the end 3 causes the arm to slide slightly towards the left, so producing a rubbing and self-cleaning action between the engaging surfaces. In a modification, the surface 4 is made horizontal but the line of thrust of the spring 8 is inclined thereto. Connecting lugs 12, extending from the guide member 5 and fixed contact 11, may be passed through slots in a mounting board 13 and secured by twisting or the fixed contact 11 may be replaced by part of a printed circuit.
Patent GB-1526138-A (GB)
Title: Apparatus for temperature stabilizing a tuned circuit
IPC: H03L1/02
Filed: 1976-11-22
Abstract: 1526138 Transistor circuits MOTOROLA Inc 22 Nov 1976 [5 Jan 1976] 48604/76 Heading H3T Apparatus 10 for temperature stabilizing a tunable circuit, such as a surface acoustic wave (SAW) oscillator, comprises two varactor diodes 12, 14 and a temperature sensitive voltage source, e.g. the base-emitter junction of a transistor 24, whereby a frequency drift related parabolically to temperature may be compensated, provided that a factor #, relating varactor capacity to applied control voltage by the equation C v  = C o /(V + #)<SP>#</SP>, is greater than unity.
Patent GB-1240885-A (GB)
Title: Journal bearing
Inventor: KOPKE GUNTER
IPC: F16C33/24
Filed: 1968-10-14
Abstract: 1,240,885. Bearings. KARL SCHMIDT G.m.b.H. 14 Oct., 1968 [24 Nov., 1967], No. 48679/68. Heading F2A. A journal bearing comprises a member having a bearing surface of aluminium or aluminium alloy, the surface being formed by a rolling operation with regular depressions which are at least partly filled with a plastics material and are of pyramidal, conical, spherical, or sawtooth shape. The alloy may comprise tin, lead, and silicon. The plastics material may consist of P.T.F.E., P.T.F.B., or acetal, polyester, polyamide, or polyimide resins, and may contain particles of aluminium, tin, lead, indium, cadmium, and thalium, or a compound of one of said metals with oxygen, sulphur, selenium, or tellurium. The particles may be forced into the surface so as to be mechanically anchored in the depressions.
Patent GB-1333280-A (GB)
Title: Hot rolled steel sheets for extra deep drawing
IPC: C21D9/46
Filed: 1971-10-20
Abstract: 1333280 Making sheets; working at specified temperatures NIPPON KOKAN KK 20 Oct 1971 [19 Dec 1970] 48679/71 Headings B3A and B3V [Also in Division C7] Steel sheets for extra deep drawing are produced by vacuum degassing a steel containing 0À001-0À02 wt. per cent C, 0À1-0À6% Mn, 0À01-0À1% Al and 0À02-0À08% Ti, hot rolling into sheets 1 to 7 mm. thick at temperatures of 800-950 C., and coiling at temperatures between 650 and 700 C.
Patent GB-1437120-A (GB)
Title: 2-amino-naphthoselenazole
IPC: C07D293/12
Filed: 1973-10-19
Abstract: 1437120 2 - Aminonaphthoselenazole; 2- methylnaphthoselenazole CIBA-GEIGY AG 12 Nov 1974 [19 Oct 1973] 48778/73 Heading C2C 2 - Aminonaphthoselenazole having the formula is prepared by halogenating an aqueous acetic acid solution of a 1,2,3,4-tetrahydro-1-oxonaphthalene-3-sulphonate or -sulphonic acid of the formula wherein m is an alkali metal or a hydrogen atom, by treatment with chlorine or bromine at a temperature of from 20‹ to 100‹ C., increasing the pH of the reaction mixture to within the range 5À0 to 9À5 and then reacting the halogenated compound with an aqueous solution of selenourea at a temperature of from 20‹ to 100‹ C. to produce a compound of the formula and then eliminating the sulphonic acid group by base catalysis using, for example, sodium or potassium hydroxide. 2-Methylnaphthoselenazole is suitably obtained by hydrolysing the compound of the invention, e.g. by means of potassium hydrooxide, in the presence of a reducing agent, e.g. an alkali metal or ammonium brorohydride, at a temperature greater than 130‹ C. in a highboiling solvent, e.g. ethane-1,2-diol, and acetylating the resultant hydrolysis product in situ with acetic anhydride in the presence of acetic acid to give a compound of the formula and then ring closing this compound, e.g. by refluxing with acetic anhydride, to produce 2- methylnaphthoselenazole.
Patent GB-1186268-A (GB)
Title: Boring Tools.
IPC: B23B29/034
Filed: 1967-10-30
Abstract: 1,186,268. Boring bars. MADISON ENTERPRISES Inc. 30 Oct., 1967 [3 Nov., 1966], No.49164/67. Heading B3C. In a boring bar the adjustable cutters 10, 11, Figs. 6, 7, have notches 17 engageable by a centring pin 30, the cutters being clamped together by a screw and nut 12<SP>11</SP>. Each notch has divergent side faces 22, 21, and a bottom face 19 which intersects faces 10a, 10b, the conical end of pin 30 engaging faces 21, 22, between its extreme edges. In a modification the side face of the notch is chamfered at 40, Fig. 8. In a further modification the notch is of elliptical form 45, 46, Fig. 9.
Patent GB-1156050-A (GB)
Title: Improvements relating to the Selective Evaluation of Pulse Images in Ripple-Control Receivers.
IPC: H02J13/00
Filed: 1966-11-02
Abstract: 1,156,050. Selective signalling. ZELLWEGER Ltd. 2 Nov., 1966 [30 Nov., 1965], No. 49197/66. Heading G4H. In a circuit designed to respond to a particular sequence of pulses superimposed upon a power cable, a silicon controlled rectifier 63, Fig. 3, is set conductive by a "start" pulse, a contact 43 is controlled by a synchronous motor 60, also turned on by the "start" pulse, so as to close with contacts 44, 46 in a sequence corresponding to the particular sequence of pulses to which the circuit is designed to respond, a contact 34 is controlled by the received pulses, and the arrangement is such that at the first mis-match between the incoming pulses and the alternations of contact 43, a short-circuit path is established across the S.C.R. 63 which thus reverts to its off condition. Thus the conductive condition of the S.C.R. at the end of the sequence, which is sampled by a contact 50, is indicative of whether a "correct" signal has, or has not, been received. Contact 43, and various other timing contacts, is constituted by a brushsensed printed circuit pattern (Figs. 4, 5, not shown) driven, for one revolution, by the synchronous motor.
Patent GB-1097470-A (GB)
Title: Cord-to-rubber adhesion
IPC: C08L21/00
Filed: 1965-11-19
Abstract: A composition comprises rubber, a methylene acceptor, and a methylene donor which is a derivative of urea, imidazolidinone, or hydantoin, at least one nitrogen atom of which has a -CH2OX radical attached thereto, X being hydrogen or a C1- 8 alkyl group.  The methylene acceptor may be a meta-disubstituted benzene where the substituents are -OH, -NH2, or -OCOCH3, 1,5-naphthalene diol, or partial reaction products of such compounds with formaldehyde.  The composition bonds to textile materials on heating.ALSO:A reinforcing element is adhered to rubber by applying a vulcanizable rubber coating to said element and heating the assembly to vulcanize the rubber, in which at least the portion of the assembly adjacent the interface of the element and the rubber coating has incorporated into it a methylene donor and a suitable methylene acceptor capable of reacting with the methylene donor, the donor containing at least one <FORM:1097470/D1-D2/1> group in which X is hydrogen or C1-C8 alkyl, the two remaining valences being connected to C or H, said donor being an N-(substituted oxymethylene) derivative of urea or thiourea of formula <FORM:1097470/D1-D2/2> a cyclic urea of formula <FORM:1097470/D1-D2/3> (II) or an N-(substituted oxymethylene) of formula <FORM:1097470/D1-D2/4> (III) wherein Y is oxygen or sulphur. Suitable compounds are resorcinol with 1,3-dimethylol-2-imidazolidinone and 1,3-dimethylol-2-imidazolinethione and m-aminophenol with the same two imidazolidine compounds.  Suitable elements are textile cords made from rayon, nylon, or polyester.
Patent GB-1525289-A (GB)
Title: Process for the purification of a raffinate and/or extract obtained by extraction of a mixture with a sulfolane-type solvent
IPC: C07C15/02
Filed: 1975-12-02
Abstract: 1525289 Purifying raffinates and/or extracts by adsorption SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 2 Dec 1975 [4 Dec 1974] 49431/75 Heading C5E A raffinate phase and/or an extract phase obtained by the extraction of an organic mixture with a sulpholane-type solvent is purified by contact with a solid adsorbent at 10-50 C. and the adsorbent is regenerated by contact at 60-100 C with at least part of the mixture to be extracted. The solid adsorbent may be alumina, BaSO 4 , CaCo 3 , glass powder, ion-exchange resins, quartz, silica gel, TiO 2 , zeolites, charcoal, carbon black, graphite or an organic resin. In Examples, small amounts of sulpholane are removed from n-heptane, and from toluene with SiO 2  gel and activated alumina.
Patent GB-1188458-A (GB)
Title: Filing System Index Indicators and Method of Producing Same
Inventor: BARBER DONALD TREADGOLD
IPC: B42F21/00
Filed: 1968-10-21
Abstract: 1,188,458. Indexing; selective printing. D. T. BARBER and T. C. SCRYMGEOUR. 21 Oct., 1968, No. 49759/68. Headings B6E and B6F. Index indicators are printed with indexing indicia corresponding to pre-marked marks representative thereof, by a method which comprises sorting out all index indicators, e.g. punched cards 10, requiring a first indicium, e.g. 2, in a first field, e.g. 23, and impunting those index indicators, sorting out all index indicators requiring a second indicium in said first field and imprinting those index indicators, and repeating the sorting and printing operations until all the index indicators are printed with the required indicia in the first field; resorting the index indicators, sorting out the index indicators requiring a first indicium, e.g. 1, in a second field, e.g. 24, and printing those index indicators, sorting out the index indicators requiring a second indicium in said second field and printing those indicators, and repeating the sorting, printing and re-sorting operations until all the index indicators are printed with the required indicia in each of the requisite fields. The indicia may be associated with corresponding coloured code marks. The marks representative of the incia to be printed may be machine readable, the sorting operations being performed mechanically. Such machine readable marks may be punched code marks as shown, magnetic ink character recognition marks (Fig. 10 not shown), optical character recognition marks, or coded grooves on an edge of the index indicator (Fig. 11, not shown). The index indicator may be a card 10 as shown, a portion 70 being cut out therefrom for attachment to a filing folder or the like, or may be the filing folder itself. The colour code system is designed to render wrongly filed folders easily recognizable, and an example of a colour code is given.
Patent GB-1172926-A (GB)
Title: Improvements in and relating to Polarised Electromagnetic Devices, more especially for Controlling Rotating Machine Parts
IPC: F16D63/00
Filed: 1967-11-03
Abstract: 1,172,926. Clutch &c. control. HASLER A.G. 3 Nov., 1967 [10 Nov., 1966], No. 50137/67. Heading F2L. An arrangement for stopping a rotary member in a predetermined angular position, particularly applicable to the control of a halfrevolution clutch 40, comprises a pair of vertical links 9 with catches 94 at their lower ends and interconnected by a crosspiece 10 which is reciprocated by an armature 5 movable between the poles 7 of an electromagnet 1. Pulses fed to the magnet 1 cause oscillation of members 5, 10 to allow the catches 94 to alternately release and obstruct a lug 41 on the member 40, so that the latter rotates in half revolution steps. The upper ends of links 9 are mounted in resilient blocks 92.
Patent GB-1360746-A (GB)
Title: Process for the manufacture of stilbene compounds
IPC: C07D249/20
Filed: 1972-10-31
Abstract: 1360746 Stilbene derivatives CIBA-GEIGY AG 31 Oct 1972 [22 Nov 1971] 50139/72 Heading C2C [Also in Division C5] A process for the manufacture of a stilbene compound of the formula wherein A denotes a benzo[b]furan-2-yl, naphtho[1,2-b]furan-2-yl, naphtho[2,1-b]furan-2-yl, benzo[b]thiophen-2-yl, naphtho[2,1-b]thiophen- 2-yl, benzoxazol-2-yl, naphthoxazol-2-yl, benzotriazol - 2 - yl, naphtho[1,2 - d]triazol- 2 - yl, benzo[1,2-d; 3,4-d<SP>1</SP>]bis-triazol - 2 - yl or phenethinyl radical, which radical can optionally be substituted by at least one chlorine or alkyl, cyclohexyl, phenyl-(1-4C)-alkyl, phenyl, methylenedioxy, phenoxy or alkoxy group or which can contain a 6 membered carbocyclic ring which is fused to it wherein y denotes a hydrogen atom, chlorine or the N,N-dimethylcarbonyl radical comprises oxidizing a compound of formula where A and y are as defined above, in dimethylformamide, with the exclusion of air, in the presence of a potassium compound of the formula KOC (x-1)  H (2x-1)  wherein x denotes an integer from 1 to 6, with an azobenzene of the formula wherein Z 1  and Z 2  stand for hydrogen or chlorine. The compounds of formula wherein A 1  denotes a radical of formula or wherein R 1  denotes hydrogen, an alkyl group containing 1 to 4 carbon atoms, an alkoxy group containing 1 to 4 carbon atoms, benzyl, phenyl or chlorine, R 2  and R 3  independently denote a hydrogen atom or methyl or two adjacent symbols R 2  and R 3  can form a fused, aromatic, carbocyclic six-membered ring are claimed per se.
Patent GB-1444695-A (GB)
Title: Nickel-zinc storage battery
IPC: H01M50/489
Filed: 1974-11-21
Abstract: 1444695 Nickel-zinc batteries TOKYO SHIBAURA ELECTRIC CO Ltd 21 Nov 1974 [21 Nov 1973] 50467/74 Heading H1B In a nickel-zinc storage battery, a sheet-like zinc electrode 1 comprises a sheet of a bound fine-granulated mixture of 60-99À5 (preferably 70-98) weight per cent zinc and/or zinc oxide, balance consisting of at least one of the following-bismuth, cadmium, thallium, tin, selenium, tellurium, indium, lead, the metal oxides thereof, the hydroxides thereof, and calcium hydroxide, bonded to a collector; and a sheet-like separator 2 comprises an alkaliresistant porous body coated with a mixture of polyvinyl alcohol and a boron oxide series compound or a metal oxide having low solubility in alkali solution. The electrodes are wound in a spiral, the separator 2 and a non-woven nylon sheet 3 protruding above the electrodes to prevent internal short circuits due to dendrites formed during charging. Zinc electrode and collector.-Suitable binders are fluorine-containing resins or polyvinyl alcohol containing boric acid or compounds capable of forming boron oxyacid ions in aqueous alkali solution, e.g. boron oxide, metaboric acid or ammonium borate. The collector is a wire cloth, expanded or punched metal, e.g. silver, silvered copper or nickel, and may be coated with a metal film having a higher hydrogen overvoltage in alkali solution than zinc to suppress hydrogen gas evolution during charging, e.g. lead, bismuth, indium. Separator.-Suitable materials for the porous body are woven or non-woven polyvinyl formal polyamide, polyethylene, polystyrene, polyvinyl chloride - polyvinyl alcohol, polyvinyl chloride-acrylic ester, and acrylonitrile-polyvinyl chloride copolymer. These pores become filled with aqueous solution of polyvinyl alcohol during coating. Suitable metal oxides are magnesium oxide, calcium oxide, titanium oxide, zirconium oxide, aluminium oxide, and # alumina. Suitable boron compounds are boron oxides, boric acid, metaboric acid or salts containing these. A gelling agent may be added, e.g. a copolymer of olefinic unsaturated carboxylic acid and polyhydric alcohol, polyalkenyl-polyether, sodium polyacrylate, improving resistance to dendrite penetration. Nickel electrode.-A mixture of nickel oxide, graphite powder and binder pressed on to a nickel or nickel plated cloth, expanded or punched metal.
Patent GB-1313827-A (GB)
Title: Fireextinguishing agent comprising difluorochlorobromomethane
IPC: A62D1/00
Filed: 1971-11-02
Abstract: 1313827 Fire extinguishants KALI-CHEMIE AG 2 Nov 1971 [5 Nov 1970] 50938/71 Heading A5A A fire extinguishing composition comprises difluorochlorobromomethane, 0.1-1.5% by wt aluminium octoate, and optionally up to 2% by wt oleic acid. The aluminium octoate may be a commercial product containing small quantities of other substances, and it serves as gelling agent for the halone. The composition may be projected by N 2  or CO 2  propellants or simply by a pump.
Patent GB-1133777-A (GB)
Title: Process for the preparation of finely divided, non-pyrophoric nitrides of zirconium, hafnium, niobium and tantalum
IPC: C01B21/06
Filed: 1965-12-01
Abstract: 1,133,777. Nitrides of Zr, Hf, Nb and Ta. CIBA Ltd. 1 Dec., 1965 [10 Dec., 1964], No. 51050/65. Heading C1A. Finely divided, non-pyrophoric nitrides of zirconium, hafnium, niobium or tantalum are produced by subjecting a halide of Zr, Hf, Nb or Ta and nitrogen or a nitrogen hydride, other than NH 3 , to the action of a hydrogen plasma, the two starting materials being used in the gaseous state. The resulting pulverulent nitrides may be densified by rotation, then heattreated at 700-850 C. either in a current of nitrogen or in a vacuum of 10<SP>-1</SP> to 10<SP>-4</SP> mm. Hg, and finally cooled. The chlorides ZrCl 4 , HfCl 4 , NbCl 5 , TaCl 5  or a mixture thereof are preferred starting halides. Preferred quantities are 1-20 moles of metal halide for 100 moles of hydrogen and an amount of nitrogen or nitrogen hydride, other than NH 3 , equivalent to 1-6 mols. N 2  per 2 mols. metal halide. The plasma generator typically comprises a water-cooled hollow copper anode and a water-cooled tungsten cathode. Typical reaction times are 10<SP>-2</SP>- 10<SP>-4</SP> sec. with a plasma temperature of 2000- 5000 C. The HfN of the invention typically has, after treatment, a particle size of 0À01Á- 0À05Á, a BET surface area of 20-30 m<SP>2</SP>/g and a bulk weight of 0.2 to 0.6 g/c.c. The equivalent properties of the other products, after treatment, are typically: TaN, 0À01-0À07Á, 12-18 m<SP>2</SP>/g and 0À3-0À8 g/c.c.; NbN, 0À01- 0À07Á, 20-30 m<SP>2</SP>/g and 0À2-0À6 g/c.c.; ZrN, 0À01-0À06 Á, 30-40 m<SP>2</SP>/g and 0À2-0À5 g/c.c.
Patent GB-1405916-A (GB)
Title: Fluid driven actuator systems
IPC: G05B11/26
Filed: 1972-11-06
Abstract: 1405916 Automatic control of position CHANDLER EVANS Inc 6 Nov 1972 [28 Jan 1972] 51092/72 Heading G3R A load is driven by a piston and cylinder arrangement, fluid-pressure to the cylinder being adjusted when a repetitive signal, whose mean value is a function of the load position error, is greater than a threshold value. In the embodiment, the position of an actuator 10, connected for example to a missile steering fin, is controlled according to the error between the actuator position, as measured by potentiometer 86, and an input command. Any error is summed with a time varying e.g. triangular carrier wave from oscillator 84, the resultant being compared with threshold values set in operational amplifiers 80, 82. If the threshold of amplifier 80, for example, is exceeded, a switch 76 is closed to energize a solenoid 72 with pulses whose width corresponds to the time that the summed error and carrier signals exceed the threshold, moving a ball poppet valve 52 from its position as shown so that it blocks flow of fluid e.g. gas from a pressurized source 26 to cylinder 20. Fluid in this cylinder is thus vented, allowing actuator 10 to move anti-clockwise under pressure exerted by fluid in cylinder 22. Similarly, by excitation of solenoid 78 and valve 54, clockwise movement of the actuator, using fluid-pressure in cylinder 20, occurs when the threshold in amplifier 82 is exceeded. An optional valve 30, between the fluid source 26 and cylinders 20, 22, may be controlled by the position error signal.