baber/WOPTO huggingface dataset:
Patent GB-1023186-A (GB)
Title: Polymerisation process
IPC: C08G2/00
Filed: 1962-11-07
Abstract: Trioxane comprising at least 99% monomer(s) is contracted in the absence of an inert diluent with boron-fluoride or a complex thereof with water or with an organic compound of which the donor atom is oxygen or sulphur in an amount less than 10 p.p.m. of the trioxane. The reaction media may contain up to 10% of a monomer containing adjacent carbon atoms, e.g. ethylene oxide, 1,3-dioxolane, trimethylene oxide, tetra- and pento-methylene oxides, 1,2-propylene oxide, 1,3-butylene oxide, 2,2-di-(chloromethyl), 1,3-propylene oxide, styrene, divinyl ether, vinyl acetate, vinyl methyl ketone and acrolein.  The reaction media may also contain up to 100 p.p.m. of water.
Patent GB-994438-A (GB)
Title: Electrical switching circuit
IPC: H03K17/62
Filed: 1961-11-24
Abstract: 994,438. Transistor switching circuits; automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 24, 1961 [Dec. 1, 1960], No. 42113/61. Headings H3T and H4K. A circuit for controlling a switching transistor TL comprises a normally-conductive transistor T1 in series with the primary winding L2 of a transformer Tr. When T1 is made non-conductive by a pulse fed to the base, TL is turned on by the energy induced in the secondary L3. The interval between pulses should be less than the time constant of the circuit. The charging resistor R may be shunted by a capacitor. Expressions are given relating the primary and secondary currents to the circuit time constants. Matrix switching arrangement.-In an electronic telephone exchange, circuits of the type shown may be arranged in 10 x 10 matrices to control speech gating transistors such as TL. Transistors T1 are normally conductive, charging the inductance of all the primary windings L2. Transistors T3 are also conductive providing a short circuit across the tertiary windings L1. The appropriate speech gating transistor TL is made conductive by cutting off the appropriate column and row transistors T1, T3. The reverse voltage at the end of each pulse may be damped by a diode in series with a resistor.
Patent GB-1409115-A (GB)
Title: Band-stop filters for electrical oscillations
IPC: H03H7/01
Filed: 1972-09-12
Abstract: 1409115 Filters SIEMENS AG 12 Sept 1972 [13 Sept 1971] 42192/72 Heading H3U Band stop filters for pilot or carrier wave suppression take the forms shown, including crystal resonators Q 1 , Q 2  in a series arm, and possibly a resonator Q 3  in the shunt arm. The configuration is stated to be such that the attenuation in the stop-band is proportional to the number of crystal resonators used. The circuits are developments of a band-pass arrangement, Fig. 2 (not shown), and components C 1 <SP>1</SP>, C 1 <SP>11</SP>, L 1 <SP>1</SP> have as values disclosed functions of L 1 , C 1  and C 2 , such values being related to impedance of the crystals. Resistors R 2  optionally provided, correct signal distortion, as does resistor R 1  connected from a centre tap of inductance 2L 1  to line B. In Fig. 5, the upper series arm contains a pair of parallel resonant circuits 5, shunted to line B by series resonant circuit 6. Each of the coils in circuits 5 may be centre tapped, via respective resistors, to line B.
Patent GB-924570-A (GB)
Title: Extractive distillation of petroleum oils
IPC: C10G21/00
Filed: 1960-12-08
Abstract: <PICT:0924570/III/1> The aromaticity of petroleum oils such as kerosene and lubricating oil fractions, and of cracked gas oil and cracked cycle oil fractions, is reduced by submitting the oil to extractive distillation in the presence of an asphaltic oil or pitch as solvent, whereby the product of reduced aromaticity is obtained as a distillate, the aromatic components having been extracted by the asphaltic solvent.  The solvent is used in a weight-ratio in excess of 0,75 parts to 1 part of the feed.  Crude petroleum is fractionated in column 11 and a kerosene fraction is removed through line 15. This kerosene is fractionated in column 21, and a heavy kerosene of boiling-range 215 DEG -270 DEG C. is withdrawn via line 25.  The residue withdrawn from the base of column 11 is subjected to flash-distillation in flashers 37 and 42; and pitch is withdrawn from flasher 42 via line 44.  This pitch is used as solvent for the extractive distillation of the heavy kerosene in column 27, the column being operated at a bottom-temperature of 357 DEG C., and the pitch being introduced into it at 260 DEG C.  The kerosene product of reduced aromaticity is removed from the top of column 27.  In another example, a residue of a crude oil containing a lubricating oil fraction is submitted to extractive distillation under vacuum, the solvent being asphalt derived from the propane-de-asphalting of a lubricating oil vacuum residue. Gas oil is removed overhead; and a vapour-stream is withdrawn from the side of the column, and condensed.  This side-distillate is submitted to liquid/liquid extraction with a polar solvent, such as phenol or furfural, in order to further reduce the aromaticity.  A lubricating oil having a kinematic viscosity of 20,5 centistokes at 38 DEG C. may be produced from the product.
Patent GB-945463-A (GB)
Title: Freezer tray and grid assemblies
IPC: F25C1/24
Filed: 1962-11-12
Abstract: 945,463. Ice-making. GENERAL MOTORS CORPORATION. Nov. 12, 1962 [Nov. 27, 1961], No. 42628/62. Heading F4H. The bottom of an ice-tray 10 is formed with a plurality of curved depressions 16 with intervening ridges 17 which support a grid assembly comprising interconnected walls 21, 22 and 23, some of which are movable to release the ice blocks formed in the tray. As shown in Fig. 4, each depression 16 comprises, in longitudinal section, portions having different radii of curvature A and C the inner ends of which are located on transverse axes in a common vertical plane B. Those depressions adjacent an end wall 11 of the tray are arranged with the portions of larger radius A towards that end while the remaining depressions have the portions of radius A facing away from the end 11. The depressions have constant radii of curvature (equal to C) in transverse section. The grid assembly comprises longitudinal walls 22 loosely interlocked with movable transverse walls 23 and having a lever 24 pivoted thereto. Upward movement of the lever first tilts the transverse wall 23 nearest to the end 11 and causes the ice blocks 26 adjacent that end to rotate in a clockwise manner, the force necessary to effect this rotation causing the curved ends of the longitudinal walls 22 to slide over the end wall 11 and thus lift the grid assembly to break the ice-bonds between the tray and the remaining ice blocks 26. Continued movement of the lever 24 causes the first wall 23 to move longitudinal walls 21 which are slidably superimposed on the walls 22 and which receive the transverse walls 23 in progressively larger slots so that the said movement causes the walls 23 to tilt successively. This tilting causes the remaining ice blocks to rotate in an anti-clockwise manner and the grid assembly may then be removed from the tray and the ice blocks tipped into a suitable container.
Patent GB-1519227-A (GB)
Title: Low-emission removal of vinyl chloride from polymers of vinyl chloride
IPC: C08F6/00
Filed: 1975-10-17
Abstract: 1519227 Vinyl chloride monomer recovery BASF AG 17 Oct 1975 [24 Oct 1974] 42647/75 Heading C3L Vinyl chloride monomer is recovered from an aqueous settling dispersion of vinyl chloride polymer by mechanical dehydration followed by treating the moist polymer at 40-140‹ C. while purging with steam; monomer is recovered from the effluent steam and the treated polymer is dried. The dispersion may be a suspension polymer or a coagulated latex.
Patent GB-1030677-A (GB)
Title: Electrical assembly
IPC: H01R12/71
Filed: 1962-12-04
Abstract: 1,030,677. Detachably mounting and connecting components. BURNDY CORPORATION. Dec. 4, 1962 [Dec. 12, 1961], No. 42937/65. Divided out of 1,030,676. Heading H2E. A component has shoulders by which it is mounted in an aperture in a printed circuit board so that its centre of gravity lies in the plane of the board, the shoulders, or some of them, incorporating contacts for connecting the component to the printed circuits. The arrangements disclosed are fully described in Specification 1,030,676.
Patent GB-1048990-A (GB)
Title: A process for the production of substituted s-triazines
IPC: C07D401/04
Filed: 1964-10-22
Abstract: Substituted triazines are obtained by reacting an amidine with a trichlor-azapropene according to the equation <FORM:1048990/C2/1> where R1 is H or an alkyl, aryl, cycloalkyl, aralkyl, heterocyclic, ether, thioether, amino, substituted amino or unsaturated hydrocarbon radical, and R2 and R3 are each a perchlorinated alkyl, alkenyl, cycloalkyl or aralkyl radical or an aryl radical, a chloraryl or trifluormethyl-aryl radical or a radical CCl3-CCl = N-CCl2-, in a liquid medium at -20 DEG  to 200 DEG  C.  The substituted amino radicals may be -NHR4, -NR4R5, -NH-N = CHR4, -NH-CN or -N = CHR4, where R4 and R5 are hydrocarbon radicals which may be unsaturated or heterocyclic radicals.  R1, R4 and R5 may also be substituted by, e.g. halogen, nitro, ester, carbonamide, sulphonamide, hydroxyl, nitrile, ether, thioether, azo, urea, urethane, and substituted amino groups.  Many amidines and their acid salts, azapropenes, and solvents are specified.  Sufficient base is added or excess of free amidine used to neutralize the acid formed.ALSO:Substituted triazines <FORM:1048990/A5-A6/1> for example those wherein R1 is p-chlorphenyl or m-nitrophenyl, and R2 and R3 are each CCl3, are used as nematocides.
Patent GB-1291231-A (GB)
Title: Improvements in or relating to apparatus for washing and filling containers for liquids
IPC: B08B9/08
Filed: 1968-09-11
Abstract: 1291231 Washing and filling machine GKN SANKEY Ltd 3 Dec 1969 [11 Sept 1968] 43223/68 Heading B8T A washing and filling machine as described in Specification 1,291,233 has a bridging platform 36 across the conveyer path, with step 37 leading to it from either side of the machine. All controls for the washing and filling operations are mounted on this service gantry.
Patent GB-933250-A (GB)
Title: Improvements in or relating to methods of applying a coating to a body of material
IPC: H01G13/00
Filed: 1961-12-04
Abstract: <PICT:0933250/III/1> <PICT:0933250/III/2> <PICT:0933250/III/3> <PICT:0933250/III/4> <PICT:0933250/III/5> A method of producing an electrically insulating coating on a body, e.g. rolled electrical capacitors, comprises electrically charging the body and a powdered insulating substance in opposite senses whilst in an unheated state, bringing the charged body and powder close to each other so that the powder particles are deposited on and adhere to the body, preventing ionization occurring in the atmosphere where the body and powder are brought into proximity so that the powder particles will adhere to any electrically-insulating surface of the body and thereafter melting the powder on the body to form the coating.  Ionization of the atmosphere may be prevented by having a low charging voltage or by charging the powder at a distance from the article.  The powder, which may be charged negatively may be an epoxy resin, phenol-aldehyde resin, polyethylene, polyamide, polyacrylate, glass and enamel.  To prevent cracks appearing in the coating the melting of the powder may be carried out in a two-staged process or the body may be impregnated, e.g. with a mixture of 60% hardwax, 30% ozokerite and 10% polyisobutylene, before being coated.  If parts of the body are not to be coated the body may be masked or the powder may be removed from these parts, e.g. by a brush, before melting the powder. As shown in Fig. 1, a charged body 3 is coated by allowing the oppositely charged powder 2 to fall through sieve 1.  In Fig. 2 bodies 3 are passed on a conveyer belt 5 travelling vertically between vibrating hoppers 7.  The powder dropping past the bodies 3 is recirculated to hoppers 7.  The bodies are then passed between strips of velvet or plush 8 and suction brushes 9 to remove powder adhering to the current supply leads.  The bodies are earthed by sliding contacts 10.  In Fig. 3 powder 22 dropped from hopper 15 on to conveyer belt 11 consisting of an upper layer of insulating material and lower layer of metal, is charged by spray electrodes 17 and attracted to bodies 16.  Any powder remaining on belt 11 is removed by brushes 18 and recirculated. An earthed electrode 20 is in sliding contact with the belt 11. In Fig. 4 powder from storage means 22 is dropped on to a rotating p  earthed circular metal plate 21, charged by needle-like electrodes 23 and attracted by bodies 27 on conveyer belt 26.  A pair of brushes 25 prevent the widening of the ring of powder 24.  The plate 21 may be replaced by a drum as shown in Fig. 5.
Patent GB-1401277-A (GB)
Title: Fermentation process for converting hydrocarbons to proteinaceous materials
IPC: C12N1/16
Filed: 1971-09-17
Abstract: 1401277 Yeast BRITISH PETROLEUM CO Ltd 11 Sept 1972 [17 Sept 1971] 43421/71 Heading C6F Protein is produced by continuously growing Candida Lipolytica CBS6331 in the presence of a straight chain hydrocarbon having at least 10 carbon atoms, an aqueous nutrient medium, and a gas containing free oxygen. Cultivation is preferably performed under an over pressure of 1À5-5À0 kg cm<SP>-2</SP> absolute, the temperature is preferably 27-33C and the pH 4À0-5À5.
Patent GB-1094944-A (GB)
Title: Improvements in or relating to fire detecting thermal electric switches
Inventor: MERTLER CHARLES STANLEY
IPC: H01H37/34
Filed: 1966-09-29
Abstract: 1,094,944. Thermal switches. STEVENS MANUFACTURING CO. Inc. Sept. 29, 1966, No. 43535/66. Heading H2B. A ceiling-mounted fire detector comprises an annular insulating housing 10 closed at its lower end by a bi-metal disc 22 and sealed to dust by a brass heat collector 23 comprising an annular side wall 23A secured by crimping around the housing 10 and by adhesive 24, an integral end wall 27, and an annular convoluted extension 29 either integral with the wall 27 or soldered thereto at 31. Disc 22 engages a rod 19 carrying a movable contact 13 normally held out of engagement with fixed contacts 11, 12. On excessive ambient temperature, disc 22 snaps over centre so that contact 13 is biased by a bowed spring 20 to bridge contacts 11, 12 and thus close a circuit between terminals 17, 18 for signalling an alarm or operating a sprinkler.
Patent GB-1204366-A (GB)
Title: Disc brake
Inventor: TAKATA KOJI
IPC: F16D55/2255
Filed: 1967-09-26
Abstract: 1,204,366. Disc brakes. SUMITOMO ELECTRIC INDUSTRIES Ltd. 26 Sept., 1967, No. 43698/67. Heading F2E. In a disc brake having a fixed support 2 on one side of a disc 1 and a cylinder 6 provided with two pistons 7, 8 mounted on the support 2 one piston 7 is arranged to apply a braking thrust directly to a first friction member 3<SP>1</SP>, 3 and a second friction member 4<SP>1</SP>, 4 on the other side of the disc is operated by the other piston 8 remote from the disc via a movable member 5 connected to the fixed support 2 by a pivot pin 13 so that the movable member is limited to pivotal movement. The angular movement of the member 5 is limited by a pin and slot 14, 15. The pad 4 is secured by a screw 17 to a support plate 16 and positioned by pins 19 which pass through holes 21, 22 in the metal back plates 3<SP>1</SP>, 4<SP>1</SP> of the brake pads 3, 4. The circumferential forces which occur on braking are applied directly to the wall 18 of the support 2 for the pad assembly 3, 3<SP>1</SP> and to the pivot pin 13 via the movable member 5 for the pad assembly 4, 4<SP>1</SP>.
Patent GB-1019716-A (GB)
Title: Bistable diode gating circuit
IPC: H03K17/58
Filed: 1962-11-20
Abstract: 1,019,716. Semi-conductor bi-stable gating Circuits. WESTERN ELECTRIC CO. Inc. Nov. 20, 1962 [Dec. 11, 1961], No. 43789/62. Heading H3T. A bi-stable gating circuit comprises a pair of series connected negative resistance diodes 10-1, 10-2 and a control path comprising a biasing means 13 which places the diodes in one or other of their stable states. As described the two diodes are tunnel diodes connetted between a source 15-1 and a load 15-2, and the biasing means 13 comprises a further tunnel diode which may be padded by a resistor 14 to cancel the negative resistance region. The circuit is so arranged that application of a first switching pulse from the pulse source sets diodes 10-1, 10-2 in their low voltage state and diode 13 in its high voltage state, so that signals from the source 15-1 reach the load 15-2, and application of a second pulse reverses the states of the diodes so that signals are blocked. The gate may form part of a cross-wire switching matrix, Fig. 3 (not shown), in which two control signals are applied via a diode AND gate.
Patent GB-1277592-A (GB)
Title: A process for the production of an amorphous highly dispersed germanium dioxide
IPC: C08G63/86
Filed: 1969-09-04
Abstract: 1277592 Germanium dioxide DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 4 Sept 1969 [20 Sept 1968] 43879/69 Heading C1A Amorphous highly dispersed germanium dioxide is prepared by reacting a volatile tetravalent germanium compound or a sprayable solution thereof under hydrolysing or oxidizing conditions in the gas phase or as an aerosol at a temperature above 1300 C., allowing the germanium dioxide formed to coagulate at a temperature of from 200 to 1000 C., and separating the gaseous reaction products. The germanium compound is preferably a halide or a volatile organo-germanium compound. The reaction is preferably carried out at a temperature of from 1400 to 1700 C. using a fuel gas of high calorific value with a free oxygen containing gas or pure oxygen, the mixture being reacted after passage through a nozzle. The germanium dioxide formed is preferably coagulated and separated at a temperature of from 400 to 700 C.
Patent GB-1287660-A (GB)
Title: Improvements in or relating to lighting fittings
IPC: F21V17/16
Filed: 1970-09-15
Abstract: 1287660 Lighting fittings PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Sept 1970 [18 Sept 1969] 44016/70 Heading F4R A screen 25 is attached to the open side of a lamp housing 1 by a series of resilient members 13 each of which can slide between an operature position, as shown, in which it supports the screen and a retracted position in which it lies entirely within the housing, Each member 13 is formed from a strip of sheet material and comprises a hook 15, which engages over a plate 5 in the housing, and a bent-out lower part 17 over which the inwardly-directed flange 31 of the screen can snap in the operative position. The member has a tongue 19 which engages in one of a pair of apertures 9, 11 in the plate 5 to hold the member in the required position. The screen comprises an opaque portion 33 containing a light-transmitting plate 35, the flange 31 and an upstanding collar 39 thereon being black to prevent light from escaping through the gap between the screen and the housing. The surface of the flange 31 is corrugated. The portion 33 is made of white material and is formed integrally with the flange 31 by multicolour extrusion.
Patent GB-1097636-A (GB)
Title: Resuscitator
Inventor: MANLEY ROGER EDWARD WENTWORTH
IPC: A61M16/00
Filed: 1966-10-03
Abstract: 1,097,636. Resuscitators. HUTCHINSON BLEASE Ltd. Oct. 3, 1966, No. 44058/66. Heading A5T. A resuscitator which may be used with a source of oxygen at constant pressure to supply the oxygen to the patient as inhalation pulses comprises a constant volume chamber 10 having an inlet orifice 14 and a larger outlet orifice 26, the chamber also including p r e s s u r e-responsive means which controls an exit valve associated with the outlet orifice. As shown, the exit valve 28, 30 is opened against a spring by a rod 46 in a bellows 38, 42 and the pressure in the chamber increases under the influx of oxygen from a flexible, tube 18 until the pressure-responsive bellows cause the valve 28, 30 to open and the oxygen issues through an orifice 56 and a mouthpiece 66 to the patient. The orifice 56 is formed in a diaphragm 52 which acts as a valve against the outlet tube 60 and allows the patient to exhale through the tube 60 into a vent 68. The rod 46 may be linked to the valve part 30 by a toggle mechanism ,(Figure 2, not shown), or the rod may be controlled by a spring-loaded catch (140) and acts directly on the arm 32 associated with the valve part 30 (Figure 3, not shown). In a further embodiment (Figure 4, not shown), the outlet orifice and the exit valve are constituted by bores (164, 168, 170) in the rod 46 and in the chamber base 20 and the rod 46 may be moved against a spring-loaded catch (156) to open the valve by aligning these bores. The resuscitator may be constructed of aluminium and, with a cylinder of compressed oxygen, may be carried for personal use.
Patent GB-1061269-A (GB)
Title: Improvements in or relating to fireplaces
Inventor: WISE GEOFFREY
IPC: F24B1/191
Filed: 1964-10-31
Abstract: 1,061,269. Fireplaces. CASTLE FIREPLACES (STAFFORDSHIRE) Ltd. Nov. 1, 1965 [Oct. 31, 1964], No. 44501/64. Heading F4W. A fireplace comprises a surround 16 positioned on a hearth 36 and having a rectangular concrete frame 18 secured around the opening therein, the horizontal members 24 of said frame are joined intermediate their ends by a pair of upright members 26 on which is located by means of split pins 38, a fixing bar 32 communicating by means of a bolt 34 with a location bar 10 mounted adjacent the breast 12 of an existing fireplace opening 14. A panel (30) attached to the frame 18 by screws communicating with wooden inserts 28 in said frame 18 closes the opening in the surround 16. The hearth 36 has a central rectangular aperture through which a gas supply pipe may be connected to an appliance (44), and the panel (30) may have an aperture therein to receive a flue extension from the gas appliance. In an alternative embodiment (Fig. 2, not shown) the fireplace is attached to a wall not possessing a fireplace opening, by means of screws or toggle bolts extending through spaced holes (42) in the upright members (26).
Patent GB-1062442-A (GB)
Title: A pure fluid shift register
IPC: F15C1/10
Filed: 1964-02-17
Abstract: 1,062,442. Fluid shift registers. BOWLES ENGINEERING CORPORATION. Feb. 17, 1964 [Feb. 26, 1963], No. 44565/66. Divided out of 1,062,441. Heading G4P. A fluid shift register comprises a plurality of bi-stable devices 27, 31 interconnected by an amplifier which, on receiving a fluid shift pulse on input 2 in coincidence with a binary signal on channel 4 or 7 from bi-stable device 27 directs the flow along channel 21 or 19 respectively to switch the flow in bi-stable device 31 so that the binary signal previously stored in the first bi-stable device 27 is transferred to the second.