baber/WOPTO huggingface dataset:
Patent GB-506563-A (GB)
Abstract: 506,563. R÷ntgenray apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. April 2, 1938, No. 10142. Convention date, May 3, 1937, [Class 98 (i)] In X-ray apparatus the X-ray tube and the picture surface are adapted to be moved so that cash of the X-rays always reaches the same point of the picture surface, the apparatus having two stand arrangements displaceable with respect to each other and adapted to be coupled together, a guide track for the picture surface being attached to one stand arrangement and a guide track for the X-ray tube being attached to the other stand arrangement, the guide tracks being pivotable from the horizontal to the vertical. The picture surface 4 is carried by a carrier 8 attached to the carriage 3 displaceable in a vertical plane on uprights I and 2 of a gantry-like stand, and is rotatable about a horizontal shaft 5 and is movable parallel to itself by means of the carriage 7 displaceable along the pivotable rails 6. To allow rotation of the picture' surface around the shaft 5 the carrier 8 which is supported by the shaft 5 is rotatably mounted in the carriage 3 together with a disc 9 formed with a slot 39 through which the shaft 5 passes. The picture surface 4 is displaceable in the direction of the shaft 5 by means of rails 10 for rollers on the carrier 8. The weight of the picture surface carrier 8 is compensated by a spring arrangement 36 having a system of levers 37 and a rod 38, the latter being mounted on the carriage 3. The carrier 8 is connected to a carrier 15 for the X-ray tube 13 by a telescopic rod 12 pivotable about axes 11 and 14. An extensible rod 17 indirectly connects the picture surface 4 to the X-ray tube guiding track 18 by, means of the sleeve 19 and the member 20 to ensure parallelism between the picture surface and the X-ray tube guiding track. The X-ray tube guiding track 18 is mounted upon the stands 21, 22 displaceable relatively to one another and to the stand 1, 2 and consists of a double rail frame movably connected to the pillar 23 of the stand 22 by the sleeve 24 and to the pillar 25 of the stand 21 by joints 26, 27. The X-ray tube car be displaced from a position in which the main direction of the X-rays is horizontal to a position in which the main direction is vertical. Displaceable counterbalance weights 28, 29 for-the X-ray tube guide track 18 and for the X-ray tube 13 are connected to the carriage 30 for the X-ray tube by means of wire ropes 33, 34 passing over pulleys 31, 32.
Patent GB-1160980-A (GB)
Title: Urea Process
Inventor: GOODMAN MICHAEL CHARLES
IPC: C01B3/02
Filed: 1966-11-11
Abstract: 1,160,980. Synthesis of urea. HUMPHREYS & GLASGOW Ltd. 1 Nov., 1967 [11 Nov., 1966], No. 50729/66. Heading C2C. A process for the manufacture of urea comprises reacting ammonia with carbon dioxide at elevated temperature and under elevated pressure, removing ammonia, carbon dioxide and ammonium carbamate from the reaction product by passing therethrough while under pressure and with heating a stream of gas comprising at least a mixture of hydrogen and carbon dioxide produced by reforming and/or oxidizing a fuel, carbon monoxide in the reformed and/or oxidized fuel having been converted to carbon dioxide by reaction with steam, and thereafter removing oxides of carbon from the remaining gas mixture and synthesizing ammonia therefrom. The stream of gas which is passed through the product of the reaction of ammonia and carbon dioxide may also contain nitrogen and the passage of the gas stream through the reaction product is suitably carried out without substantial reduction of the pressure of the latter, e.g. at 130- 200‹ C. and a pressure of 150-400 atmospheres. The removal of the oxides of carbon from the gas stream after passage through said reaction product may be effected by contacting the gas stream with water or a solution of ammonium carbamate. The fuel from which the gas stream may be obtained may be a liquid or gaseous hydrocarbon or a solid fuel, e.g. coke, and a suitable form of apparatus for carrying out the process is described.
Patent GB-507335-A (GB)
Abstract: 507,335. Coating-compositions. SMITH, H. W., and CAMPBELL, S. G. Dec. 14, 1937, No. 34537. [Class 95] A coating-composition or paint vehicle includes, as essential ingredients, the unsaponifiable matter of wool grease, which has been subjected to the action of caustic alkali or other condensing agent at a high temperature, and a magnesium soap. Specified soaps are the magnesium soap produced from wool grease fatty acids, and magnesium resinate, and the amount of soap should preferably not exceed that of the unsaponifiable matter. According to examples : (1) magnesia is mixed with wool grease. and water, and the mixture is heated in an autoclave to form a soap. The resultant mixture is dried and then further heated to 500‹ F. with a condensing agent; (2) wool grease is heated with aqueous caustic alkali under pressure, and the water then removed by evaporation. The product is heated at 500‹ F. with a condensing agent, then dissolved in water, and a magnesium salt added. Alternatively, the product of the first heating is dissolved in water, the magnesium soap is precipitated, and the whole is dried and further heated to 500‹ F. with a condensing agent; (3) a magnesium soap prepared from wool grease fatty acids is mixed with unsaponifiable matter of wool grease, the necessary heat treatment of the unsaponifiable matter, in the presence of a condensing 'agent, being effected before or after admixture with the magnesium soap ; (4) wool grease is saponified with alcoholic caustic potash or with sodium ethylate, the unsaponifiable matter separated and heated to 500‹ F. in the presence of a condensing agent; and finally incorporated with magnesium soap obtained from wool grease ; (5) a pigment is dispersed in a solution of the soda soap of the wool grease fatty acid containing unsaponifiable matter which has been subjected to the action of a condensing agent at a -high temperature, and then a solution of magnesium sulphate is added. The precipitated magnesium soap carries down, with it, the pigment and the unsaponifiable matter. Solvents, such as white spirit or turpentine, driers, and, according to the Provisional Specification, drying oils also, may be added to the coating compositions. Specifications 470,715 and 507,337 are referred to.
Patent GB-1080287-A (GB)
Title: Improvements in the production of glass sheets
IPC: C03B25/093
Filed: 1964-12-14
Abstract: <PICT:1080287/C1/1> In a process for producing fine polished glass sheets of predetermined dimensions, a volume of liquid glass 3 is introduced on to the flat horizontal bottom 2 of a heated non-wettable mould, 1,5 (e.g. of graphite), a flat plate 7, also not wetted by the glass and having the same shape as the mould bottom 2, is then placed on the liquid glass which spreads out under the action of gravity, surface tension and the weight of the plate, the layer of glass is allowed action of gravity, surface tension and the weight of the plate, the layer of glass is allowed to cool to a plastic sheet which is then transferred from the mould on to a bath of a molten metal where its surfaces become flat and fire-polished, whereafter it is cooled and annealed. The molten glass is preferably at a temperature of from 1000 DEG  to 1300 DEG  C. when placed in the mould.  The final sheet should have a thickness of from 2 to 6 mm. The plate 7 and the mould bottom 1 may be cooled.  An oxidizing atmosphere may be maintained over the mould and/or the bath of molten metal.
Patent GB-1391812-A (GB)
Title: Burner assembly for burning used oil
IPC: F23G7/05
Filed: 1972-11-06
Abstract: 1391812 Burners K KONAGAI and S ICHIKAWA 6 Nov 1972 50986/72 Heading F4T [Also in Division B1] A burner assembly for burning used oil, comprises an oil tank 6, a supply pump 1 for supplying used oil through a connecting pipe 2 into the oil tank, an air pump 4 connected to a mixing chamber 5 in the connecting pipe 2 to mix air into the used oil before its entry into the oil tank, filtering means disposed inside the oil tank for cleaning the used oil, and a burner 9 supplied with the mixture of cleaned oil and air from the oil tank by a discharge pump 11 and with air from the air pump 4. As shown the filtering means comprises a filter box 10, and inner and outer cylinders 8 and 14 each having perforated walls. A rotatable vane 7 is provided within the inner cylinder. A rotary mixer 12 comprises a centre shaft and multiple arms, and is surrounded by a perforated wall 16. Air is supplied from the air pump 4 through a cavity in the centre shaft and perforations in the arms of the rotary mixer. In use the mixture of used oil and air formed in the mixing chamber 5 collides with the vane 7 to cause rotation of the latter. This rotation converts the air bubbles contained in the mixture to smaller sized bubbles. The size of the bubbles is further reduced as the mixture flows through the perforated walls of the cylinders 8 and 14. The rotary mixer provides a mixing action and creates further air bubbles. The connecting pipe 2 is wound around a heater 3 enabling the viscosity of the used oil to be suitably adjusted. Excess air is discharged from the oil tank through an air discharge valve 15. An oil level detector 13 controls operation of the supply pump 1.
Patent GB-1483490-A (GB)
Title: Fuel control system for a gas turbine power plant
IPC: F04B23/10
Filed: 1974-11-26
Abstract: 1483490 Gas turbine engine fuel control systems; electrically driven reciprocating pumps UNITED AIRCRAFT CORP 26 Nov 1974 [17 Jan 1974] 51203/74 Headings F1A and FIG A gas turbine engine fuel system comprises an  engine driven centrifugal fuel pump, an electricallydriven positive displacement fuel pump disposed in series flow relation with the centrifugal pump and responsive to an electronic fuel control, the positive displacement pump pressurizing the fuel when the engine is operating below a predetermined speed, as at starting, and serving to meter the fuel flow above the predetermined speed, the centrifugal pump alone pressurizing the fuel when the positive displacement pump is in the metering phase of operation. The fuel system shown in Fig.1 comprises a centrifugal pump 16 driven by the engine 10, and a positive displacement pump 18 of the sliding vane type driven by an electric motor 42 under control of an electronic control unit 14. A regulating valve 20 is provided to maintain a constant pressure drop across the sliding vane pump, the pressures upstream and downstream of the pump acting through lines 34 and 36 in the chambers 30 and 32 at either end of the valve member 28; the valve member is formed with a recess which cooperates with a valve sect 40. A by-pass passage 46 controlled by a solenoid valve 48 is provided across the sliding vane pump such that fuel flow is maintained at a minimum value in the event of electrical failure, the valve 48 opening by spring action. In Fig. 2 the piston type pump 120 is actuated by a Piezo-electric device 112, the device 112 acting against a spring-loaded piston 114, hydraulic fluid in the cylinder below the piston 114 acting on the plunger 116 which in turn acts on the piston 120 which acts on the fuel in the cylinder below the piston. The piston 120 pressurizes the fuel at engine starting and subsequently, once the centrifugal pump 100 provides sufficient pressure, acts to meter the fuel flow, the Piezo-electric device being energized from the electronic controller.
Patent GB-1522169-A (GB)
Title: Non-recursive digital filter
IPC: H03H17/00
Filed: 1975-12-15
Abstract: 1522169 Non-recursive digital filter PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Dec 1975 [18 Dec 1974] 51243/75 Heading H3U A non-recursive digital filter, with the input sampling frequency being an integral multiple of the output sampling frequency, comprises a store 2 to hold a given number of successive input samples, a multiplier 3, means to supply weighting factors to the multiplier which forms products between a given number of input samples and the same number of weight factors, an adder 4 connected to the multiplier to supply within one output sampling period an output sample given by the mathematical sum of the products formed within that period and an input circuit. The input circuit 1 comprises a second store 16 which stores a group of successive input samples and means to write the group into the store N between the occurrence of successive output samples. This enables the filter to work at a slower rate, having a time equal to that needed to fill the input store 6 to form the products whereas known circuits have only a time equal to the input sample function. Loading from the input store 6 into the filter store 2 can be serial or parallel (Fig. 6 not shown). The two stores may be shift registers and the second may be connected during formation of products as a circulating register (Fig. 8 not shown). The weight factors may also be held in a circulating register (5). Tables illustrating the timing of prior art and 3 embodiments are given in the specification.
Patent GB-1445259-A (GB)
Title: Production of monovinylacetylene
IPC: C07C67/00
Filed: 1974-11-27
Abstract: 1445259 Vinylacetylene HOECHST AG 27 Nov 1974 [17 Dec 1973] 51379/74 Addition to 1378119 Heading C5E A process for making monovinylacetylene according to claim 5, as appendant to claims 1, 2 and 4, of Specification 1,378,119 is improved by concentrating the catalyst solution by evaporating water therefrom and dissolving additional copper (I) chloride therein.
Patent GB-1377975-A (GB)
Title: 17alpha-hydroxy-16alpha,18-dimethyl-delta4-pregnene-3,20-dione  and its esters
IPC: A61K/
Filed: 1971-11-08
Abstract: 1377975 17α - Hydroxy - 16α,18 - dimethyl- #<SP>4</SP> - pregnene - 3,20 - dione SCHERING AG 8 Nov 1971 [10 Nov 1970] 51739/71 Heading C2U The novel title steroid and its novel 17α- monoesters and 3-enol-17α-diesters are prepared by reducing 17α-hydroperoxy-16α,18-dimethyl- #<SP>4</SP> - pregnene - 3,20 - dione or a 3 - protected derivative thereof or by oxidizing a 3#-hydroxy- 17α - acyloxy - 16α,18 - dimethyl - #<SP>5</SP> - pregrien- 20-one or the corresponding 17α-ol and, when desired, hydrolysing or esterifying the product. 3-Enol-17α-diesters thus-produced may subsequently be partially hydrolysed to 17α- monoesters. 17α - Hydroperoxy - 16α,18 - dimethyl - #<SP>4</SP>- pregnene - 3,20 - dione is prepared by converting 17# - acefoxy - 18 - methyl - #<SP>5(10)</SP>- estren-3#-ol (prepared by reduction of the 3-one) to 17# - acetoxy - 18 - methyl - 5,10# - methylene- 5# - estran - 3# - ol, oxidizing this to the corresponding 3-one, converting this to 17#- acetoxy - 18 - methyl - #<SP>4</SP> -androsten - 3 - one, converting this to the #<SP>5</SP> - 3 - ethyleneketal, hydrolysing this to the 17#-ol, oxidizing this to 3,3 - ethylenedioxy - 18 - methyl- #<SP>5</SP>-androsten-17-one, converting this to the corresponding 17α - ethynyl - 17# - ol, dehydrating to 18 - methyl - 17 - ethynyl - #<SP>4,16</SP> - androstadien-3-one, oxidizing this to 18-methyl-#<SP>4,16</SP>- pregnadiene - 3,20 - dione, ketalizing this to 3,3 - (2<SP>1</SP>,2<SP>1</SP> - dimethylpropylene - dioxy) - 18- methyl - #<SP>5,16</SP> - pregnadien - 20 - one, converting this to 3,3 - (2<SP>1</SP>,2<SP>1</SP> - dimethylpropylenedioxy) - 17α- hydroperoxy - 16α,18 - dimethyl - #<SP>5</SP> - pregnen- 20-one and hydrolysing this. 3# - Hydroxy - 17α - acyloxy - 16α,18 - dimethyl - #<SP>5</SP> - pregnen - 20 - ones (wherein acyl is heptanoyl, formyl or acetyl) are prepared by converting 3#-acetoxy-18-methyl-#<SP>5,16</SP>-pregnadien - 20 - one to 17α - hydroperoxy - 3#- acetoxy - 16α,18 - dimethyl - #<SP>5</SP> - pregnen - 20- one, hydrolysing this to the 3#-ol, reducing this to 3#,17α - dihydroxy - 16α,18 - dimethyl - #<SP>5</SP>- pregnen-20-one, converting this to the 3#,17α- diacylate and partially hydrolysing this. The novel steroids are stated to possess strong ovulation-inhibiting properties coupled with a minor gestagenic activity, and they may be made up into pharmaceutical compositions with suitable carriers. These compositions may be used for contraceptive purposes. Reference has been directed by the Comptroller to Specification 1,277,266.
Patent GB-1512680-A (GB)
Title: Apparatus for generating oxygen
IPC: B23K1/00
Filed: 1975-12-19
Abstract: 1512680 Generating combustion products under pressure ROTHENBERGER GmbH & CO WERKZEUGE UND MASCHINEN KG 19 Dec 1975 [27 Dec 1974] 52240/75 Heading F1L An oxygen producer, e.g. for use with welding or cutting equipment, comprises casing 10 containing a tubular cartridge holder 12 and defining therewith a storage space 21 for oxygen produced by the combustion of cartridges 19. The oxygen passes via a filter 17 and through a drying chamber 18 to a pressure reducing valve 23 and outlet 24. The pressures within space 21 and at outlet 24 are sensed by gauges 22, 26 respectively. Valve 27 relieves excess pressure. The producer may include a charging lock enabling further cartridges to be inserted into casing 10 without loss of storage pressure. The casing may contain a cartridge magazine.
Patent GB-1460569-A (GB)
Title: Amplifier having constant current consumption
IPC: H03F3/30
Filed: 1972-11-13
Abstract: 1460569 Transistor amplifiers RCA CORPORATION 12 Nov 1973 [13 Nov 1972] 52362/72 Heading H3T An amplifier circuit having constant current consumption comprises first and second transistors 101, 105 series connected between supply terminals, utilization means 104 coupled in parallel across the first transistor 101 and a D.C. impedance 102 monitoring the current through the first transistor and controlling via a third transistor 106 and a resistor 108 the bias to the second transistor 105 so as to provide constant current flow I 0  therethrough. As shown the D.C. power supply for an audio pre-amplifier 80 and output amplifier 100 is obtained by rectification of horizontal deflection flyback pulses from a T.V. receiver and the arrangement maintains the current drawn therefrom constant. Thermal stability of I 0  is achieved by the diodes 109 and 110. The audio amplifier is protected against a short circuit across the speaker 104 since the maximum current can only reach the value I 0 .
Patent GB-1513208-A (GB)
Title: Radial piston type hydraulic pump or motor
IPC: F04B1/113
Filed: 1976-12-16
Abstract: 1513208 Reciprocating pumps and motors TEIJIN SEIKI CO Ltd 16 Dec 1976 [27 Dec 1975] 52606/76 Heading F1A In a radial piston pump or motor comprising a cylinder block with outwardly or inwardly extending pistons 5 engaging a housing or shaft surface 16 via balls 6 or spherical heads, the housing or track surface 16 is shaped such that the ball or piston head contacts the surface at two, axially spaced points X, Y. The pump or motor may be of the types described in Specification 1513207 or may comprise a stationary or rotary cylinder block with inwardly extending pistons engaging a multilobed cam member on a rotary or stationary, respectively, shaft also provided with a distributer valve, Figs. 14 and 15 (not shown).
Patent GB-1315427-A (GB)
Title: Composition for the treatment of pulmonary ailments by inhalation
IPC: A61K31/16
Filed: 1971-11-19
Abstract: 1315427 Composition for inhalation PHARMACIA AB 19 Nov 1971 [20 Nov 1970] 53727/71 Heading A5B [Also in Division C4] A composition for the treatment of pulmonary ailments by inhalation comprises 0.5-5% of 7-(#-hydroxypropyl) theophylline; 0.5-5% of water; 5-40% of a C 2 -C 3  alcohol; and 50-93% of a propellant; the composition being contained in a pressure-resistant container adapted to discharge it by spraying, the percent figures being by weight.
Patent GB-1455114-A (GB)
Title: Push-chairs
IPC: B62B9/26
Filed: 1972-11-23
Abstract: 1455114 Push chairs N T HAMEL 22 Nov 1973 [23 Nov 1972] 54236/72 Heading B7B A push chair having a longitudinally collapsible chassis is provided with a seat 40 and seat support frame 24 which are pivoted upwardly during collapse, the chassis side frames 10, 11 being collapsed by pivotal movement of the handle frame 29. Each side frame includes members 12, 13 pivotally interconnected at 14 which mount the wheel axles 15, 19, seat frame 24 and handle 29. The frame 24 is also pivoted to an arm 26 pivotally mounted on a vertical member 23 at each side of the chassis and which is pivoted at 21 and 30 respectively to the member 12 and handle frame 29. On downward pivoting of the handle frame members 12, 13 and frame 24 are moved towards members 23 along with the seat which is supported by a strap and buckle 43, 46 on the frame 24. A luggage support platform 47 is mounted on members 23 and pivotally mounted trailing arms 20 support the rear wheel axle (Fig. 2, not shown) and brake levers (54) equipped with brake shoes 56.
Patent GB-1344530-A (GB)
Title: Process and apparatus for producing caramel syrup
IPC: A23G3/32
Filed: 1971-11-23
Abstract: 1344530 Caramel GENERALE SUCRIERE SA 23 Nov 1971 [20 April 1971] 54440/71 Heading A2B A carbohydrate, for example sugar, syrup is passed through a pipe, where in a heating zone of the pipe it is subjected to temperature and pressure to caramelise the syrup and form water vapour, part of which water is extracted in an extraction zone, and the caramelised syrup is cooled in a cooling zone. Fig. 1 shows a suitable apparatus, syrup from tank 1 being pumped by pump 2 through heating coil 5, water vapour being extracted at 7 and condensed at 27, the caramelised syrup being cooled in coil 8 and passed to homogeniser 10 where any additional constituents are added.
Patent GB-1373936-A (GB)
Title: Ignition system for engines
IPC: F02P1/08
Filed: 1971-11-24
Abstract: 1373936 Ignition systems, timing ignition ELTRA CORP 24 Nov 1971 [22 March 1971] 54628/71 Heading FIB  An ignition system comprises a generation and control device incorporating a rotor 10 and a stator 30, means for driving the rotor in synchronism with the engine, a magnet 14 mounted on the rotor and including pole shoes 16, 18, a charging coil 32 mounted on the stator with the ends 32b 32c of the magnetic core 32a of the charging coil positioned for excitation by the pole shoes, means D1 for charging a capacitor CD from the charging coil, a trigger coil 34 mounted on the stator with one end of the trigger coil positioned for excitation by the pole shoes in advance of the excitation of the charging coil core the trigger coil being spaced from the leading end of the charging coil core by a distance less than the width of the leading pole shoe whereby a single positive voltage pulse having spaced peaks of different voltage values is generated in the trigger coil when the pole shoes are rotated past the trigger coil core, the lower voltage peak being first in time and below a predetermined level lower than the higher voltage peak during starting of the engine and above the predetermined level after the engine has started and means responsive to such positive pulse exceeding the predetermined level for triggering a controlled rectifier SCR for discharging the capacitor. The system may include means for preventing charging of the capacitor when the rotor is rotating in a reverse direction. The trigger coil control circuit may include temperature compensating means comprising a thermistor R5 and a voltage divider. In Fig. 7 (not shown) an alternative method of temperature compensation is provided.