baber/WOPTO huggingface dataset:
Patent GB-916713-A (GB)
Title: Improvements in or relating to solid fuel stoves
IPC: F24C15/02
Filed: 1960-11-15
Abstract: 916,713. Stove doors. JONES & CAMPBELL Ltd., COX, J., and RENNIE, T. Aug. 30, 1961 [Nov. 15, 1960], No. 39180/60. Class 126. The front opening of a solid fuel stove has a door comprising two wings 10 and 11, each of which is carried by top and bottom links 16 pivoted on pins 12 and 13 at the top and bottom of the door wings and on pins 14 and 15 at the top and bottom of the side frames of the stove. Projections 17 are provided at the top of the door wings adjacent their inner vertical edges and engage a top panel 18 of the stove so that in opening and closing the door the pivot pins 1.2 and 13 move through an arc of substantially 180 degrees while the inner edges of the doors are guided by the projections 17 to move in a straight line along the front of the stove. Thus the outer faces of the door wings are exposed at the front of the stove in both the open and closed positions. The Figures show the door wings in a partly open position.
Patent GB-1455451-A (GB)
Title: Phosphorus-containing pyrimidine derivative having pesticidal  properties
IPC: C07F9/6512
Filed: 1973-08-20
Abstract: 1455451 N,O - dimethyl 2 - diethylaminopyrimidin - 4 - yl - phosphoramidate and salts thereof IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Aug 1974 [20 Aug 1973] 39221/73 Heading C2P The invention comprises the compound and acid addition salts thereof, e.g. the hydrohalides. The compound is obtained by reacting 2 - diethylamino - 4 - hydroxypyrimidine, or an alkali metal salt thereof, with N,O-dimethylphosphoroamido chloridate, preferably in an inert diluent or solvent, and optionally in the presence of a base. The product has pesticidal properties and may be used as active ingredient in conventional pesticidal compositions which may also contain other biologically active ingredients, e.g. an insecticide or fungicide.
Patent GB-1065797-A (GB)
Title: Process and apparatus for gas chromatography
IPC: G01N30/44
Filed: 1963-10-04
Abstract: A combination of "frontal analysis" and "elution development" chromatography is used to separate mixtures of gases.  A mixture of components is fed to a column in the absence of a carrier gas until the least easily absorbed component is discharged from the column and then a carrier gas is introduced to promote the discharge of the various separated components which are collected separately, until substantially pure carrier gas issues from the column.  The feed of carrier gas is discontinued and the cycle repeated.  It is preferred to use a plurality of cylindrical columns of length 1 to 3 m and diameter 5 to 8 mm mounted in parallel about the periphery of a cylindrical surface which is rotated.  In the embodiment fire brick having ethylene glycol-bis-propionitrilether thereon is used as the separatory material.  An adjustable sampling device (Figs. 4 and 5 not shown) is disclosed which moves with the rotating columns whilst the sample is being injected and then moves back to its former position to inject another sample into the next column.
Patent GB-1175926-A (GB)
Title: Catalytic Hydrogenation of Oxidized Aluminum Trialkyls
IPC: C07C29/09
Filed: 1968-08-16
Abstract: 1,175,926. Catalytic hydrogenation of oxidized aluminium trialkyls. CONTINENTAL OIL CO. 16 Aug., 1968 [5 Feb., 1968], No. 39363/68. Heading C2C. [Also in Division C7] Aluminium alkoxides, prepared by the growth of low-molecular-weight aluminium alkyls with olefins followed by oxidation, are hydrogenated in the presence of a copper or nickel hydrogenation catalyst or a hydrogenated catalyst promoted with isopropanol and the hydrogenated product converted to alcohols by hydrolysis, the alcohols having an improved normal alcohol yield. The copper or nickel hydrogenation catalyst may be copper, a reducible copper compound which has been prereduced with hydrogen, or nickel. The reducible copper compound may be copper chromite, barium promoted copper chromite, or copper oxide. The catalyst may be on a support, for example copper on kieselguhr, copper on alumina, and nickel on kieselguhr. The ratio by weight of catalyst to support is generally in the range of 0À05 : 1 to 0À05 : 0À1. The pressure of hydrogen is preferably in the range of 300 to 500 p.s.i.g. and the temperature is preferably in the range of 130 to 200 C. The aluminium alkoxides may be the oxidized products of aluminium alkyls having equal or random alkyl chain lengths having 6 to 30 carbon atoms or more.
Patent GB-1413145-A (GB)
Title: Inverters
IPC: H02M7/515
Filed: 1972-08-24
Abstract: 1413145 Inverting DEUTSCHE AUTOMOBIL GmbH 24 Aug 1972 [27 Aug 1971] 39544/72 Heading H2F In a method of controlling an inverter having a plurality of controlled rectifiers (e.g. thyristors) each device is arranged to be pulsed during only part of its conductive period, the pulsing frequency being varied in dependence on the fundamental output frequency and the voltage time integral of the pulses over the pulsing period being maintained constant i.e. the output voltage being effectively proportional to frequency, the proportionality being adjustable by a further control signal. Fig. 1 (not shown) relates to a three-phase bridge of six thyristors with in verse diodes, each thyristor being capable of being turned on and off by unspecified means. Fig. 2 shows the control circuit for the inverter, the fundamental frequency being determined by the frequency of pulses a which are fed to a divider 1 which provides pulses b, c at half and quarter frequency, the latter being passed to a counter 2 to provide six control signals each displaced by 60 degrees to control a gate 6 which distributes turn-on and turn-off pulses to the thyristors of the inverter 7. Pulses at input frequency a, half frequency b or quarter frequency c are selected by gate 3 and fed to a shaper 4 so as to provide pulses g the duration of which is a function of the further control signal supplied at l. The pulses g are monitored in a comparator 5 which provides a signal i so as to determine which frequency will be passed by the gate 3. Comparator 5 determines whether the duration of pulse g is greater than or less than a fixed duration which is a function of the duration of oscillation phenomena in the commutating circuit. When low frequency pulses a are supplied, the inverter 7 produces a low frequency three-phase output for an asynchronous motor, the average value of the output being generally low but controllable by the signal at l. Fig. 4 (not shown) relates to operation when high frequency pulses are supplied at a, gate 3 being arranged to select quarter frequency pulses, each thyristor being pulsed on and off only once at the mid-point of its conductive period. Reference has been directed by the Comptroller to Specification 1,362,849.
Patent GB-889772-A (GB)
Title: Improvements in or relating to metal-clad electric switches, switchfuses and the like apparatus
Inventor: MARTIN KENNETH
IPC: H01H9/22
Filed: 1958-12-09
Abstract: 889,772. Cam-operated switches; switch cases. GENERAL ELECTRIC CO. Ltd. Dec. 9, 1959 [Dec. 9, 1958], No. 39663/58. Class 38 (5). A three-phase switch-and-fuse comprises an insulating base 2 to accommodate three fuses 5 and having suitable recesses to enclose contacts 14 for co-operation with bridging contacts 12 which are movable against springs 13 by push-rods 11 actuated by a rotary cam 10. The base 2 is mounted in a metal casing 1 having a removable lid 36 which carries an operating knob 16 whose spindle 31 is received in a slot 15 in cam 10. A Y-shaped insulating cover 8 retains the cam 10, switch contacts 12 and push-rods 11 in their respective recesses. Cover 8 is fixed to the base 2 by two screws 37 passing through eyelets which attach two insulating covers 25 to the cover 8 such that covers 25 may be swung to shield the line terminals 7. A central upstanding hollow pillar 19 is moulded on the cover 8 and this carries a metal insert 23 having a notch 24 which cooperates with a rotating part 39 associated with spindle 31 such that when the switch is " on " the lid 36 cannot be removed from casing 1. Specifications 889,770, 889,771 and 889,773 are referred to.
Patent GB-897851-A (GB)
Title: A gear wheel of synthetic plastic material
IPC: F04C2/08
Filed: 1959-11-23
Abstract: 897,851. Toothed wheels. FARBENFABRIKEN BAYER A.G. Nov. 23, 1959 [Nov. 24, 1958], No. 39688/59. Class 80 (1). [Also in Group XXVI] The teeth of a synthetic plastics gear-wheel used in a gear pump are provided with peripheral and lateral sealing lips 12, 13 formed by recesses in the crests and sides of the teeth. Preferably a cross-linked polyurethane resilient plastics material is used. As shown the gears are used as a reversible rotary engine, pressure liquid from a gear pump (not shown) being admitted through apertures 2 or 3 and exhausted through apertures 4 and 5.
Patent GB-1449059-A (GB)
Title: Concrete delivery machine
IPC: F04F5/24
Filed: 1973-08-22
Abstract: 1449059 Concrete mixers NEUHAUSER KG and BERGWERKSVERBAND GmbH 22 Aug 1973 [26 Aug 1972] 39698/73 Heading B1C [Also in Divisions B8 and El] A machine for delivering concrete, e.g. to a concrete gun, comprises a mixing vessel 1 containing mixing elements, e.g. paddles 8, which discharges via an opening 5 into a delivery tube 3 therebelow having a delivery head 4, the delivery tube having rotatably mounted therein a metering tube 10 with openings 11 in its wall for admitting concrete, and a pressurised fluid supply device, e.g. a compressor 12, connected to the end of the metering tube 10 remote from the delivery head 4 for introducing a pressurised fluid, e.g. compressed air, into the metering tube for conveying concrete therealong. The openings 11 may be arranged in a straight line longitudinally of the tube 10 or in a spiral, and may be of identical or decreasing cross-section in the delivery direction. A conduit may extend from the compressed air supply at 19 along the interior of the tube 10, and has angled outlet nozzles (Fig. 2, not shown). In a modification, two mixing vessels 1 discharge into a single delivery tube 3, and the metering tube 10 has two rows of openings 11 circumferentially spaced by 90 and not overlapping longitudinally, each row co-operating with a respective vessel (Fig. 4, not shown). The tube 10 has fluid-tight sealing means 16 and may be rotated by hand or motor.
Patent GB-1146454-A (GB)
Title: Swimming bath heater
IPC: E04H4/12
Filed: 1967-08-31
Abstract: 1,146,454. Submersible liquid heaters. R. VON LINDE. 31 Aug., 1967 [9 Sept., 1966], No. 39779/67. Heading F4A. [Also in Division F1] A swimming bath heater comprises a housing 2 adapted to be mounted at the edge 1 of a swimming bath which contains a gas or oil burner 3 and a blower 4, e.g. of the side-channel type, capable of developing a pressure head of at least 200 mm. of water, and a combustion chamber 5 with a chimney pipe 6 depending therefrom and ending in an exhaust 8 above the level of the housing floor. The pipe 6 is of serpentine shape and acts as a heating pipe. Combustion air is supplied by the blower 4 through an air jacket 10 surrounding the combustion chamber 5. The pipe 6 and the air delivery pipe 11 are connected to the exhaust 8 and blower 4 by bellows 14 and 15, respectively, which allow the burner 3, combustion chamber 5 and pipe 6 to be pivoted about a horizontal axis 13. The pipe 6 is supported on the bottom 18 of the bath by adjustable legs and away from the side of the bath by props (16), Fig. 2 (not shown). To promote water circulation around the pipe 6 air from the blower 4 is introduced into an open-ended tubular body (20 or 20<SP>1</SP>), Figs. 3 and 4 (not shown), within or surrounding the pipe coils.
Patent GB-1423210-A (GB)
Title: Wewage tretment apparatus and method
IPC: C02F1/52
Filed: 1973-08-22
Abstract: 1423210 Treating sewage R N EDWARDS 22 Aug 1975 39897/73 Heading B1C [Also in Division C1] A liquid sewage and waste treatment apparatus for providing biological and chemical oxidation of the contaminants comprises an enclosed vessel 100 having inlet means 114 for introducing liquid sewage and waste into the lower portion thereof and outlet means 160 for discharging treated liquid from the vessel; means 118 for supplying oxygen to the upper portion of the vessel to provide an oxygen atmosphere therein; comminutor means 125 disposed in the upper portion of the vessel in spaced relation above the intended level of the liquid sewage and waste; and means 120, 121 and 122 for directing a stream of liquid sewage or waste from the lower portion of the vessel into the upper portion thereof to impinge upon the means 125 in order to break the liquid sewage or waste into small particles. In operation, after the liquid sewage or waste is broken into small particles by the comminutor means, it drops through the oxygen atmosphere where oxygen is absorbed readily because of the large surface area of the small particles. The apparatus may form part of a liquid sewage and waste collection and treatment system which comprises means for transporting the sewage or waste from a point of collection to a point of treatment, means positioned in the transporting means for supplying oxygen to the sewage or waste as it flows therethrough and a treatment apparatus as described above. The treatment apparatus may have a generally spherical shape for batch operation and have a single comminutor therein or, as shown in Figure 3 may be an elongated, generally cylindrical, horizontally extending vessel, divided into successive treating chambers by baffles 106 and 108 with comminutor means in each treatment chamber. Oxygen in the form of O 2  may be supplied to the first half of the vessel defined by baffle 102 and oxygen in the form of O 3  may be supplied to the second half for sterilisation and control of odours and other undesirable features, the second half also having in the lower portion thereof a longitudinally-extending curved baffle to cause mixing and circulation of the sewage. Activated sewage may be recycled from the end of the first half to the beginning thereof. The apparatus may also comprise ultraviolet light or ultrasonic wave means or chemical feed means for further treatment of the sewage. The apparatus may be pressurised to increase absorption of the oxygen. The comminutor means may comprise a generally inverted, conically shaped head member mounted for vertical rotation about a vertical axis having spiral grooves therein so that rotation of the head member is caused by the stream of liquid sewage and waste impinging against it. The head member may also have a plurality of teeth, which may be removably mounted, to aid in breaking up the liquid sewage and waste.
Patent GB-871345-A (GB)
Title: Diaphragm pump
IPC: F04B43/067
Filed: 1957-12-23
Abstract: 871,345. Diaphram pumps. SCHAURTE, P. Dec. 23, 1957 [Dec. 22, 1956], No. 39972/57. Classes 8(1) and 102(1). In a fluid pump e.g., a vacuum pump comprising two resilient flexible diaphrams 7, 9 forming an oil-filled chamber 17 and wherein the diaphram 9 serves to close an inlet duct 12 and occupy an annular pumping chamber 13 and thereby force gas past a check valve 16 and through a delivery duct 14, the forward stroke is effected by pneumatic or hydraulic pressure within a chamber 18 of the pump casing 1 acting against the diaphram 7 and the return stroke is effected by a flexible traction member 6 connecting the diaphram 7 to a cam-actuated disc 4, 5. As shown the hydraulic chamber 18 is connected by a conduit 19 to a pump or pressure tank (not shown). Specifications 871,343 and 871,344 are referred to.
Patent GB-1045558-A (GB)
Title: Improvements in wire-wound filters
Inventor: SHIPTON FRANCIS GEORGE
IPC: B01D29/15
Filed: 1964-10-01
Abstract: The ends of the wire of a wire-wound filter element are gripped in segmental slots at each end of a cylindrical former by the axially directed force of blocks in the slots, which force is provided by axial screws which engage in tapped holes in the ends of the former and in blind holes in the blocks.  The wire is preferably under tension while thus gripped.
Patent GB-840305-A (GB)
Title: Improvements in or relating to moulds adapted for high frequency heating
IPC: B01J19/08
Filed: 1958-12-16
Abstract: 840,305. Moulds adapted for high-frequency heating. WINTER, W. Dec.16, 1958 [Aug. 6, 1958], No. 40559/58. Class 87(2). The operative surfaces of the male and female members of a non-metallic mould are coated with an electrically conductive paint so that they may form electrodes for applying a highfrequency electric field to heat the material being moulded. Coatings 2 and 7 of conductive paint are sprayed on to the operative surfaces of mould members 1 and 6 respectively and electric leads 3, 8 are attached, to these coatings. Layers of cardboard having an adhesive thereon which hardens in a high frequency field are then moulded : they act as a dielectric between coatings 2, 7.
Patent GB-845630-A (GB)
Title: Proccess for welding thermoplastic polymeric material
IPC: B29C65/74
Filed: 1958-12-18
Abstract: 845,630. Seaming non-metallic sheet materials. BYK-GULDEN LOMBERG CHEMISCHE FABRIK G.m.b.H. Dec. 18, 1958 [Dec. 20, 1957], No. 40964/58. Class 42 (1). In a process for welding thermoplastic polymeric sheet material two contacting sheets are sandwiched between two mould-plates, at least one mould-plate having a slot whose walls taper inwardly towards the material to be welded and whose configuration follows that of the desired seam so that the seam to be welded can be exposed to. heat from a walding-device, heat is applied to the seam to bring the temperature of the material to above the melting-point and the welded seam is then allowed to cool. Apparatus shown for applying the invention to making a glove comprises upper mould-plate 3 and lower mould-plate 2, each provided with a tapered slot to the configuration of the required glove, only the slot 7a in the upper plate being visible in Fig. 1. The two plates are hinged at 4 and in operation two sheets of polyethylene or polystyrene are clamped between the two mouldplates and heat is applied to the seam through the upper mould-plate by a gas burner or an electrically-heated filament to melt the material and form a seam.
Patent GB-1192754-A (GB)
Title: Improvements in or relating to Packaging
IPC: B65B9/213
Filed: 1967-09-08
Abstract: 1,192,754. Form-and-fill machines. FR. HESSER MASCHINENFABRIK A.G. 8 Sept., 1967 [9 Sept., 1966], No. 41043/67. Heading B8C. In a packaging machine, a length of heat sealable material P is drawn from a supply roll (not shown) and fed by way of a forming shoulder 2 around a hollow forming mandrel 1 and sealed longitudinally by sealing means 3 to form a tube S. The tube S is then sealed at its lower end and drawn off the mandrel 1 a preset distance by jaws 4, 5 and filled with a measured amount of material F through a tube 8 within the mandrel 1. A sleeve 6, longitudinally displaceable on mandrel 1 by means of linkage 10, 11, 12 and cylinder 9, is moved so that it is in its lower position during filling. After filling, the sleeve 6 is raised and the portion S1 of tube S, which had been covered by sleeve 6 to prevent contamination by filling material F, is then sealed by jaws 4, 5 and severed by a knife 14 to produce a single bag (B), Fig. 2 (not shown). The tube S may be vented by a suction line 13 to prevent pressure build-up. In a modification (not shown), instead of a movable sleeve 6, the whole of the mandrel 1 may be longitudinally displaceable. In a further embodiment (not shown), the mandrel 1 is stationary and the sleeve 6 is not present. In this case, the length of tube S required for each bag is drawn off in two stages, the region of the tube designed to form the upper seam remaining on the mandrel 1 until filling is completed.
Patent GB-975885-A (GB)
Title: Improvements in or relating to hydro-mechanical transmissions,particularly for motor vehicles
IPC: F16H47/08
Filed: 1963-10-17
Abstract: 975,885. Hydromechanical change-speed gear. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Oct. 17, 1963 [Oct. 26, 1962], No. 41080/63. Heading F2D. An hydromechanical change-speed gear for a motor car &c., comprising a torque converter in combination with a planetary change-speed gear, gives three forward ratios and a converter by-pass clutch can be so controlled that any of the ratios is established through an allmechanical path. Additionally, the highest ratio may optionally be obtained with a splittorque, part-mechanical, part-hydrodynamic power path. The first ratio is established from an input shaft 1 through the turbine T of a torque converter, having the usual one-way detent mounted reactor L, to a hollow shaft 7 and a clutch A engaged to transmit drive to a sun-gear 5b. Planet pinions 5f journalled in a carrier 5d mesh the rear sun-gear 56 and also mesh planet pinions 5e meshing a front sun-gear 5a, a one-way detent 11 stationing the carrier so that drive is transmitted through a ring gear 5c to an output shaft 6. Engagemen t of a torque converter by-pass clutch A<SP>1</SP> enables an allmechanical first ratio to be obtained. Second ratio is established by maintaining the front sun-gear clutch A engaged while applying two parallel-arranged brakes C, C<SP>1</SP> to station the front sun-gear 5a. The brake C<SP>1</SP> includes a one-way clutch 10, so that on disengagement of the parallel brake C, the next ratio can be established without a break in the transmission of power. As for first ratio, an all-mechanical transmission of power is obtained by engagement of the converter by-pass clutch A<SP>1</SP>. Third ratio is established by disengaging the brakes C, C<SP>1</SP>, maintaining the clutch A engaged, and also engaging a clutch B to lock-up the planetary gearing. Transmission of power through the torque converter is again controlled by the by-pass clutch A<SP>1</SP>. Additionally, a split torque third ratio can be established by engaging the by-pass clutch A<SP>1</SP>, disengaging the clutch A and maintaining the clutch B engaged. The rear sun-gear 5b is then driven directly through the by-pass clutch A<SP>1</SP> while the front sun-gear 5a is driven through the torque converter. Reverse is established by engaging a brake D to station the carrier 5d, while also engaging the clutch B.