baber/WOPTO huggingface dataset:
Patent GB-1448176-A (GB)
Title: Method for in vitro propagation and maintenance of cells
IPC: C12N5/07
Filed: 1974-07-01
Abstract: 1448176 Aerating and circulating liquids MONSANTO CO 1 July 1974 [2 July 1973] 29079/74 Heading B1C [Also in Division C6] Tissue cells attached to the exterior surfaces of some 1000 fibre membranes 3(ID 10-300Á) fitted within a reactor 2 are perfused with nutrient medium in circulation from inlet 12 to outlet 13 while a pulsating flow of air (from cylinder 16) containing 3% carbon dioxide is passed into the interior of the hollow fibres through chamber 5. The displacement of pulser 19 is preferably sufficient to sweep out the fibres each time. A major part of the nutrient medium penetrates the fibres and is taken off with residual gas from chamber 8. Conventional pH, oxygen and temperature measuring or regulating instruments are provided. Alternatively, the fibres may be closed at one end. In Example 3 the oxygen carrier was oxygenated Eagle's Basal Medium without serum (instead of air).
Patent GB-1470156-A (GB)
Title: Electrode a method of cutting out such an electrode and an electrochemical cell incorporating such an electrode
IPC: H01M4/04
Filed: 1975-07-10
Abstract: 1470156 Making battery electrodes SAFTSOC DES ACCUMULATEURS FIXES ET DE TRACTION 10 July 1975 [12 July 1974] 29151/75 Heading H1B In a process for cutting out electrodes for electrochemical cells from a strip of sintered Ni impregnated or coated with active material,  except for one or more longitudinal strips, the electrodes are cut out, at an angle (e.g. 45 degrees) oblique to the longitudinal axis of the strip, to give a triangular corner which is used for connection to a terminal. An alkaline cell comprises a positive electrode 23 made by the method of the invention interposed between two negative electrodes 26 made by folding a strip in U-shape with an interposed U-shaped separator 25. Alternatively the negative electrodes and separators may be made of two separate parts. The assembly is mounted in a plastics lid 27 with a metal contact member 28 which is soldered to the corner 26 of the electrode 23. The electrolyte may be added or the separator pre-impregnated. A metal container 29 forms the negative electrode.
Patent GB-618479-A (GB)
Title: Improvements in or relating to gas-turbine-engine fuel-systems
IPC: B05B7/24
Filed: 1946-09-30
Abstract: 618,479. Liquid-fuel burners. MORDELL, D. L. Sept. 30, 1946, No. 29155. [Class 75 (i)] [Also in Group XXVI] A gas turbine engine has a fuel system of the type including fuel injectors in which air under pressure is used to assist atomization of the fuel, characterised by the provision of an auxiliary compressor 36 receiving air from a tapping 33 from the main engine compressor 35 and delivering such air at increased pressure to the fuel injectors 10, means 26 being provided to discontinue the air supply to the injectors 10 in the higher range of fuel flow. The device 26 contains spring pressed piston valves 27, 28 acting in chambers 30, 32 the chamber 30 being connected to the fuel pump 14 through a conduit 31. When the fuel pressure is low the spring 29 maintains the piston 27 in a position to permit air to be supplied. by the auxiliary compressor 36 through the chamber 32 to the conduits 25, 24, and the injectors 10. As the fuel pressure rises the piston 27 moves to cut off the supply to the conduit 25, the air being returned to the air compressor 35 through a conduit 34. In each injector 10 the fuel supplied through a pipe 11 from a manifold 12 flows through a chamber 16, Fig. 2, and swirling grooves 17 to the atomising nozzle 19. At low rates of fuel flow the swirl is augmented by the pressure air supplied through the manifold 24, and a conduit 20 leading to an annular conduit surrounding the chamber 16, and through a series of slots 22 formed in a disc 23, Fig. 3, to be injected tangentially into the fuel issuing from the grooves 17.
Patent GB-1278452-A (GB)
Title: Image formation system using multiple arrays of drop generators
IPC: H04N1/23
Filed: 1969-06-09
Abstract: 1278452 Copying by scanning MEAD CORP 9 June 1969 [18 Oct 1968] 29192/69 Heading H4F [Also in Division B6] In a high-speed printer in which characters or images are formed by a plurality of liquid ink jets in arrays 20, 22, 24, 26, Fig. 1 as a web 10 is fed through the machine, a binary code is applied electrostatically to allow a stream of drops produced by a supersonic virbator 37 to fall on the web or be diverted into a catcher unit, 45, Fig. 4. The web and the stream of drops intersect at an angle so that at the point of impact their velocities are equal. Each character is formed by 16 x 20 mosaic 70, Fig. 5. The width of each character is divided into four groups of four staggered jets which are operated twenty times to form the character or image. Time delay units enable two adjacent jets to position ink drops side-by-side when required. The printer may be controlled by a magnetic tape, core memory or computer. The apparatus may also be used to produce the same copy repeatedly. A photograph, print or film is mounted on a drum 50, Fig. 1, and light 52 is sensed by banks of photosensors 55-59 corresponding to the arrays 20-26 which deposit ink in accordance with the image sensed. The apparatus is suitable for printing on irregular surfaces, e.g. sandpaper fabric, bottles, cans &c. and the jets may use etching liquid.
Patent GB-861636-A (GB)
Title: Improvements in or relating to the production of polymeric linear terephthalate ester films
IPC: B29C55/06
Filed: 1959-08-26
Abstract: The process of the parent Specification (wherein an oriented polymeric linear terephthalate ester film, which has been stretched in two mutually perpendicular directions by a factor of at least 2.5 at 80-120 DEG  C. and heat-set at 150-205 DEG  C., is stretched in one of the directions by a factor of 1.4-2.0 at 80-205 DEG  C. and thereafter heat-set under tension in one direction of stretch at 150-235 DEG  C.) is modified in that a polymeric linear terephthalate ester film, which has been biaxially oriented by elongating it in two mutually perpendicular directions at an elevated temperature and then heat-set at a temperature of from 5 DEG  C. above the elevated temperature to 149 DEG  C., is stretched at an elevated temperature in one direction by a factor of at least 1.05.  In one embodiment of the invention which is particularly adapted for relatively thick films and continuous operation, a polymeric linear terephthalate ester film which has been uniformly oriented by stretching in both directions by a factor of 2.5-5.0, preferably about 3.0, at about 80-120 DEG  C. and heat-set at about 85-149 DEG  C., is stretched in one direction by a factor of at least 1.05 to a point less than the breaking-point of the film, and preferably by a factor of from 1.4 to about 4.0, especially by a factor of from 1.4 to about 2.0, at a temperature of 80-205 DEG  C. and is then heat-set at about 150-235 DEG  C. under a tension sufficient to prevent shrinking in the direction of stretch.  The film is preferably composed of polyethylene terephthalate, but may alternatively be composed of any polymeric linear terephthalate ester formed by reacting a glycol selected from the group having the formula HO(CH2)nOH, where n is an integer from 2 to 10 inclusive, with terephthalic acid or an ester-forming derivative thereof or a low molecular weight alkyl ester thereof, such as the dimethyl or diethyl ester, and up to 20% by weight of a second acid or ester thereof, the second acid being a dicarboxylic acid such as iso-phthalic acid, diphenic acid, sebacic acid, hexahydroterephthalic acid, adipic acid, azelaic acid, naphthalic acid, 2,5-dimethyl terephthalic acid or bis-p-carboxyphenoxyethane.  The treatment of the invention improves the tear resistance of the film in both directions Specification 786,176 also is referred to.
Patent GB-920175-A (GB)
Title: Improvements in or relating to electric pulse lengtheners
Inventor: BOWMAN DONALD FRANCIS
IPC: H03K5/05
Filed: 1960-08-24
Abstract: 920,175. Pulse circuits. GENERAL ELECTRIC CO. Ltd. Aug. 24, 1961 [Aug. 24, 1960], No. 29252/60. Class 40 (6). A pulse lengthening circuit comprises a charge-storing diode and a further diode in series across the input terminals and a thermionic or transistor amplifier fed with the voltage across the charge-storing diode. Each positive-going pulse applied to input 1 is gated in gate 2 under control of a clock pulse C1 and passed via a germanium point-contact diode 5 to charge a junction or gold-bonded diode 6. At the end of each incoming pulse, diode 5 becomes non-conductive but diode 6 retains its charge until a clock pulse C2 (delayed with respect to C1) discharges diode 6 via diode 11. Diode 6 thus remains charged for the period between clock pulses and valve 7 conducts for this period to produce a flat-top pulse of corresponding duration.
Patent GB-188323-A (GB)
Title: Improvements in or relating to brakes for motor vehicles
IPC: B60T13/16
Filed: 1922-10-26
Abstract: 188,323. Cattaneo, G. Nov. 5, 1921, [Convention date]. Brakes, arrangement and disposition of.-In a brake of the kind comprising a pump driven from a running shaft of the vehicle and adapted to supply pressure fluid directly to brake cylinders the cylinders control valve and pump may be disposed in the casing of the change speed gear, the oil in the casing being used as the pressure fluid. The gear wheel pump P driven from the transmission shaft of the driving wheels of the vehicle discharges oil contained in the casing R, normally through ports 9 in a slide valve D, or, when the valve is moved to apply the brakes, into the space between the brake pistons 4, 5. A spring controlled relief valve is provided and a further valve 26 is adapted to be opened by a centrifugal device to reduce the braking pressure if the wheels tend to skid. The pedal L of the valve D is adapted to engage also a lever 29 and thereby to actuate the brakes directly. The Specification as open to inspection under Sect. 91 (3) (a) states that the pressure fluid may be the oil contained in the differential casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-949494-A (GB)
Title: Apparatus for demonstrating the motion of falling bodies
IPC: G09B23/10
Filed: 1959-08-27
Abstract: 949,494. Teaching mechanics. R.H. ANDERSON. Aug. 26, 1960 [Aug. 27, 1959], No. 29302/59. Heading G5G. Apparatus for demonstrating the motion of projected and of falling bodies comprises a framework 3 having a horizontal beam 5, pivoted by parallel links 6 to a fixed beam 4, on which is supported a body 8 for projection horizontally at the point P. A secured body 14 is simultaneously dropped from a point X the arrangement being such that both bodies arrive together at a target T positionable at any co-ordinate by its mounting or horizontal and vertical calibrated members 1,12. The framework 3 is normally held raised by catch means and when a catch 28 is released the beam 5 swings and projects the body 8 horizontally, at a velocity dependent upon the height to which it was raised, when a shock absorber 10 is arrested. The arrest of the beam 5 causes a bar 32 to release a catch 31 to allow a pivotal platform 30 to drop the body 14 at the instant the body 8 is launched.
Patent GB-229390-A (GB)
Title: Improvements in fire or temperature alarm apparatus, applicable for use in mines or other places
IPC: G08B17/06
Filed: 1923-11-21
Abstract: 229,390. Smith, C., and Sutton, G. J. Nov. 21, 1923. Alarms operated by fusible devices.-A fire alarm for inserting in masses of material in ships, mines, warehouses, &c. comprises a flexible pipe which is fixed to a tubular casing at one end, is anchored in position at the other end, and contains a non-extensible flexible member so arranged that this member or that part of it outside the casing moves in the direction of its length when a part in connection with it and contained in the casing fuses. The flexible member 6 may be wound around fusible rings 11, or knots in the member may be retained by fusible plugs. A number of cases each containing a fusible ring may be used, the intermediate cases being elongated to allow for movement of the unfused rings. The member 6 normally deflects a wire 1 passing over pulleys 3 and fixed at 2. The wire is kept in tension by a weight 4 which is adapted to operate an alarm and the movement of which is indicated on a scale. The rings or plugs may be of differing melting points to give a series of alarms as the temperature rises. Specifications 16242/06 and 22525/07 are referred to.
Patent GB-362574-A (GB)
Title: Improvements in process and machine for manufacturing oscillating joints
IPC: B25B27/28
Filed: 1930-10-01
Abstract: 362,574. Flexible joints. CHRYSLER CORPORATION, 341, Massachusetts Avenue, Detroit, Michigan, U.S.A. Oct. 1, 1930, No. 29414. Convention date, Dec. 27, 1929. [Class 65 (ii).] In a method for assembling a flexible joint such as used between the springs and frame of a motor vehicle and comprising rigid inner and outer sleeve members 12, 10 and an intermediate elastic member 14, the elastic member is inserted in the outer member and the inner member is then guided from its opposite ends while being inserted through the elastic member. The elastic ring 14 is pressed into the outer sleeve 10 by the machine shown in Fig. 1 which comprises a base 16 having a block 18 and an axially adjustable pilot member 20 over which the sleeve 10 is fitted. Mounted in a crosshead 34 by detachable members 38, 40 is a cylinder 36 containing a piston 42 urged upwards by a spring 54 and adapted to be moved downwards by compressed air admitted above the piston from a pipe 56. The piston carries a plunger 44 to which is detachably mounted a tool 48, 70 with a head portion 62 of diameter equal to the smallest diameter of a tapered sleeve 60 slidably and detachably mounted on the rod 70. In operation the sleeve 10 is held between the block 18 and an annular recess 72 in the lower part of the sleeve 60 and the elastic ring is placed in the upper end of the sleeve 60 from which it is pressed into the sleeve 10 by the piston, the pilot 20 serving to limit the downward movement of the ring. Fig. 3 shows a machine for inserting the inner sleeve. The outer sleeve and elastic ring are held in a die 84 resting on the upper surface of a die 76 of internal diameter equal to the outer diameter of the inner sleeve and are clamped at the top by a detachably mounted cap 88. The lower end of a pistonactuated plunger 110 carries a block 122 having resilient upper and lower faces 124 and a member 128 of diameter equal to the internal diameter of the sleeve 12 which is frictionally'held thereon by a spring-pressed ball 130. Similarly held on the lower end of the sleeve 12 is a taper 132. On the downward movement of the piston the taper and sleeve are pressed through the elastic ring, being axially guided at the bottom by a seat 144 mounted on a piston 142 in a chamber 138. When the plunger returns to its original position the sleeve 12 remains in the ring 14 and on the removal of the cap 88 the assembled sleeves and the taper are forced out by the pressure in the chamber 138 built up by the downward movement of the piston 142 or by the admission of compressed air. In a modification the sleeve 10 is held on a block by spring-actuated jaws and the ring 14 rests on a sleeve projecting above the block into the sleeve 10. The insertion of the taper presses down this projecting sleeve against the action of a spring and also forces down a guiding piston as before, the action of the spring and the back pressure of the piston together serving to remove the assembled members.
Patent GB-1359788-A (GB)
Title: Quantitative test method for measuring solder-flux surface tension interaction
IPC: G01N13/02
Filed: 1972-06-23
Abstract: 1359788 Measuring surface tension INTERNATIONAL BUSINESS MACHINES CORP 23 June 1972 [27 July 1971] 29414/72 Heading G1S The effect of flux on the surface tension of solder is investigated by measuring the pressure required to blow gas bubbles in molten solder 10 at the end of a pipe 22, and then measuring the pressure required to blow gas bubbles internally coated with flux, the flux being introduced at 18. The gas may be ammonia, hydrogen or argon.
Patent GB-364124-A (GB)
Title: Improvements in or relating to means for the lubrication of bearings
IPC: B61F17/20
Filed: 1930-10-01
Abstract: 364,124. Lubricating axle bearings. PICKERSGILL, W. R. A., 2, Villa Road, Brixton Road, London. Oct. 1, 1930, No. 29428. [Classes 12 (ii) and 12 (iii).] Oil is raised from the bottom of a railway vehicle axle-box to passages 12 above the bearing by an impeller 9 journalled on a pin 8 secured to the cover 7, the impeller being caused to rotate with the axle 3 by means of a pin 10a projecting into a slot 9e in the impeller from a plate 10 secured to the end of the axle. The impeller is provided with two or more shoes 9a, each of which has inclined portions 9c connected by an arcuate portion 9b.which is concentric with and closely adjacent to the inner periphery of a cylindrical chamber 5 closed by or formed in the cover 7. The latter has a filling aperture 17a with a spring closure 7b, an internal guard member 7c being adapted to prevent abstraction of oil from the box. The passages 12 communicate by inclined passages 12a with troughs 2b in the brass 2a, from which the oil overflows or is led through holes 2c to the bearing surface. A small proportion of the oil is diverted from the passages 12 into inclined conduits 13 containing absorbent material and leading to the horn-block guides.
Patent GB-712203-A (GB)
Title: Improvements relating to the manufacture of carbon bricks and tamping masses
IPC: C04B35/532
Filed: 1951-12-17
Abstract: Shaft furnace lining comprises either carbon bricks or a plastic carbonaceous material rammed between an inner mould and the furnace shell, in which the basic ingredient is a coke having a true specific gravity of over 1.95 grs./cc. and preferably 2.04 grs./cc.  The coke should be of low ash content, e.g. 8 per cent., the impurities being in a fine state of subdivision, and may be prepared by heating to 1300 DEG C. or by prolonged treatment in the coke oven at normal coking temperatures. e.g. 1000 DEG -1150 DEG C.  Tar p  is used as a binding agent.
Patent GB-265714-A (GB)
Title: Improvements in the manufacture of soap
IPC: C11D9/22
Filed: 1925-11-23
Abstract: 265,714. Flammer, E., and Kelber, C. Nov. 23, 1925. Soap flakes containing persalts or other compounds evolving oxygen are made from soaps containing only about 8-14 per cent of water. The mixture is rolled into thin sheets which are cut on the last roller by a roller a formed of parts d the width of a Bake alternating with cutting discs f, each part d being provided with cutting spirals, c. The discs and spiral roller parts d may be replaced by others of different size and shape whereby flakes of rectangular, triangular, rhomboidal, or any other shape may be formed. Translucent flakes may thus be produced by (1) making the soap from a fatty acid mixture containing a fairly large proportion of fatty acids of the formula Cn H2n - 2 O2, e.g. oleic or erucic acid or Cn H2n-<SB>2 O3, e.g. ricinoleic acid; or (2) adding to the soap hydrocarbons of the formula Cn H2n-2 or Cn H2n, where n is at least 10, their oxy-compounds, or the esters of either; hexadecane, slightly oxidized paraffin wax, cetyl alcohol, cetyl palmitate, and the stearic acid ester of octadecenole are given as examples ; or (3) using soda soaps containing a proportion e.g. 17 per cent of potash soaps. In examples (1) soap is made from a mixture of lauric acid, myristic acid, palmitic acid, and 50 per cent of erucic acid, dried to a water-content of 8-14 per cent, and mixed with 15 per cent of sodium perborate; (2) 80 lb. of soap containing 84-85 per cent fatty acid are mixed with 20 lb. of sodium perborate, and 4 lb. of cetyl palmitate, and rolled in a machine having a heated lower roll.
Patent GB-749980-A (GB)
Title: Fluid process for coking heavy hydrocarbon oils
IPC: C10G9/32
Filed: 1954-10-14
Abstract: <PICT:0749980/III/1> Heavy hydrocarbons are coked by injecting the preheated feed into a fluidized mass of coke to which is introduced to supply the heat for coking a fluidizing medium comprising preheated hydrocarbon-containing gas particularly recycled tail gas; mixing of the coke particles in the coking vessel is impeded by means providing separate coking and drying zones.  Feed is pumped under pressure through a heating coil 5 to preheat it to 500 DEG -850 DEG F. before injection into a turbulent fluidized mass 9 of coke which is heated by hot tail gas admitted to the coking vessel 8 through line 12 and on which at 850 DEG -1200 DEG F. and e.g. 400 lb. per sq. in. pressure coke particles are deposited.  Separated from zone 9 by a baffled or packed section 11 a drying zone 10 of the coke mass reaches a higher temperature.  Some coke is withdrawn through a stripping leg 13 into a lock hopper 16 and discharged through a cooler 23; part may be returned to the coking zone after crushing in a mill 19.  Vapours evolved flow through a solids separator to a fractionator 33 being first brought into contact with a cooled light gas oil already condensed in the column and withdrawn through a line 38; some is returned as intermediate reflux through a line 41.  Heavy gas oil is withdrawn through a line 36. Overhead vapours and gases pass off through a condenser 44 and part of the condensate is returned to the column by a pump 47. The residual gases are pumped under a pressure of up to 600 lb. per sq. in. through a coil 56 and heated to e.g. 100 DEG -1500 DEG F. before return to the coking vessel.  In an example the recycle gas stream comprises hydrogen 33, methane 42.5, ethylene 3.7, ethane 10.6, propylene 2, propene 4.5, and higher molecular weight hydrocarbons 3.7 per cent by volume.
Patent GB-319953-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G23/18
Filed: 1928-10-16
Abstract: 319,953. Avery, Ltd., W. & T., and Taylor, J. W. Oct. 16, 1928. Ca.sings.-A weighing-scale is provided with a masking strip disposed within the chart housing in order to obscure the inner-walls and those parts of the weighing mechanism normally visible through the usual windows. As shown, the masking strip 7 is slotted at the ends 7<c> to embrace the indicating chart 5 and has a central slot 7<d> for the indicating pointer to pass through.
Patent GB-267850-A (GB)
Title: Improvements in back pressure turbines
IPC: F01K7/34
Filed: 1926-11-25
Abstract: 267,850. Akt.-Ges. Brown, Boveri, et Cie. June 3, 1926, [Convention date]. Regulating.-In a back-pressure turbine of the bleeder type, the valve at the tapping place is regulated by the back-pressure and the live steam inlet valve of the turbine by the pressure in the tapping pipe. Live steam enters the turbine 1, 2 through the pipe 3 and valve 4, and is tapped off down the pipe 5 between the high and low pressure units, exhausting at the pipe 7. When the pressure in the pipe 7 falls, the diaphragm 12 opens a valve in a pipe supplied by the pump 8 with oil under pressure, allowing the oil to lift the piston 13 and open the tapping valve 6 wider to permit a greater proportion of steam to pass through the low-pressure unit 2. When the pressure in the tapping pipe 5 falls, the diaphragm 14 opens a valve in the oil system and allows the oil to lift the piston 17 to open the inlet. valve 4 wider and permit the influx of more live steam. If the piston 13 and 17 are supplied with oil in parallel instead of in series, and a throttle inserted between the oil supply pipe and the piston 13, the added advantage that the back pressure also regulates the live steam inlet valve is obtained.