baber/WOPTO huggingface dataset:
Patent GB-1022265-A (GB)
Title: Preparation of purified lipid a from crude lipid a derived from lipopolysaccharides of gram-negative bacteria
Inventor: NAKAZAWA MASAO
IPC: C12P1/04
Filed: 1963-03-14
Abstract: Purified lipid A is prepared by extracting crude lipopolysaccharides from cultured gram-negative bacterial cells with aqueous phenol, hydrolysing the crude lipopolysaccharides with dil. HCl containing NaCl, extracting the hydrolysates with CHCl3 and isolating crude lipid A from the hydrolysates as chloroform-soluble substance, and then fractionating the resulting crude lipid A dissolved in CHCl3 by means of chromatography on a silicic acid column, followed by elution with a CHCl3-MeOH mixture (6 : 4 by vol.), distilling off most of the solvent from the solution thus obtained, adding acetone and collecting the precipitate of purified lipid A by centrifugation and drying in vacuo.  The silicic acid may be mixed with silica. The lipid A may be obtained from enterobacteria, e.g. E coli.
Patent GB-944890-A (GB)
Title: Improvements in or relating to the forming of images in opaque pressure-clearable films
IPC: B41C1/06
Filed: 1962-03-16
Abstract: 944,890. Photomechanical printing processes. E.I. DU PONT DE NEMOURS & CO. March 16, 1962 [April 10, 1961], No. 10217/62. Heading G2M. Clear images are formed in opaque pressureclearable films by applying a large number of small impact forces to the film whilst in contact with the relief surface of a printing form or like relief surface. Specified methods of applying such forces are contact with a vibrating mass of balls, a rain of pellets, and application of a brush, e.g. a rotary brush having the ends of the bristles rounded. The forces may be applied through a thin flexible protective sheet. Apparatus for carrying out the vibrating balls method is claimed and as shown in Fig. 2 comprises a vibratable support 11, carrying relief printing form 12 and opaque pressure-clearable film 13, over which is clamped confining frame 16 containing balls 18. Fig. 4 (not shown) illustrates an alternative arrangement wherein form 12 and film 13 are pressed against the upper surface of confining frame 16. The image obtained may be used as a negative to obtain a high contrast positive from which further negatives may be made. Specifications 760, 076, 786,119, 801,948, 802,853, 815,277, 825,795, 843,238, 850,453, 854,980, 883,558 and 919,671 are referred to.
Patent GB-1213577-A (GB)
Title: Improvements in or relating to storage chambers
Inventor: COPPEL GEORGES
IPC: F25D13/00
Filed: 1968-03-01
Abstract: 1,213,577. Cold rooms. G. COPPEL. 1 March, 1968 [8 March, 1967], No. 10237/68. Heading F4H. The walls of a thermally insulated air-tight storage chamber are formed from plastics panels 4 around which are wrapped sheets of plastics film 5. The panels are secured to a metallic framework (dotted lines) and the sheets are sealed together at their edges; they may completely surround the chamber. As shown, the chamber stands on the consolidated bottom of a cavity which is filled with water before the sheets are sealed so that the water penetrates into the chamber. Subsequent refrigeration freezes the water within and around the base of the chamber.
Patent GB-856381-A (GB)
Title: Improvements in and relating to the dyeing of keratinous or regenerated protein-fibres
IPC: D06P3/30
Filed: 1956-04-04
Abstract: Keratinous or regenerated protein fibres are contacted with an aqueous solution, suspension, or dispersion of a dye as hereinafter defined in the presence of an organic compound which is a solvent for the dye, is liquid under the conditions of dyeing and is insoluble or only slightly soluble in water, and in which the solubility of the dye in the organic compound is greater than the solubility of the dye in water.  Suitable dyes are those which have hitherto been disregarded due to water insolubility but which are soluble in solvents, which satisfy the above conditions regarding organic compounds.  Examples of suitable dyestuffs are acid wool, direct, chrome pre-metallised dyes and organic and inorganic pigments. Preferably the keratinous or regenerated protein fibres are impregnated with an aqueous solution or dispersion of dye containing the organic compound.  Alternatively the organic compound may be present in the form of an emulsion in the aqueous solution or dispersion of dye.  The aqueous solution or dispersion may contain an organic solvent miscible with both the organic compound and water e.g. acetone.  The fibres may be impregnated (1) with an aqueous solution or dispersion of dye and (2) with an aqueous solution or dispersion of the organic compound successively in either order. Subsequently the fibres may be subjected to the action of steam or hot water as after treatment. In examples (1) wool slubbing and loose wool yarn (scoured or otherwise) are dyed in the presence of formic or acetic acids, benzyl alcohol, n-butyl alcohol or thymol with acid dyestuffs, (2) spun silk yarn is dyed in the presence of n-butyl alcohol with C.I. Solvent Red 7 and (3) Woollen materials are printed using pastes comprising C.I. Acid Black 58, benzyl alcohol, ferric acid and thickener.
Patent GB-1426952-A (GB)
Title: System for altering the magnitude and direction of thrust of a ships propeller
IPC: B63H21/21
Filed: 1973-03-02
Abstract: 1426952 Automatic control of thrust J M VOITH GmbH 2 March 1973 [4 March 1972] 10269/73 Heading G3N A system for altering the magnitude and direction of thrust of a ship's propeller 12 having a main drive 11, means for altering the magnitude of thrust of the propeller viz a speed governor 10 and means for altering the direction of thrust of the propeller 14, 15 the system having two adjustable electric components 2, 3 means for adjusting the two components in order to select the magnitude and direction of thrust in Cartesian co-ordinates a computer arrangement in electrical connection with the adjustable electrical components for transforming these Cartesian co-ordinates into polar co-ordinates to find, in polar co-ordinates the magnitude and direction of thrust in accordance with the new magnitude and direction selected and for supplying the signals to the respective means for altering the magnitude and direction of thrust of the propeller. A measured-value potentiometer 16 is mechanically coupled to the thrust direction altering means, the output value of the potentiometer being supplied to a control circuit 14 of the thrust direction altering means. For a ship with a variable-pitch propeller the signal is fed to means for adjusting blade pitch instead of to the speed governor.
Patent GB-565910-A (GB)
Title: Apparatus for the regulation of temperature and other physical conditions in a space
IPC: F24F11/02
Filed: 1943-06-26
Abstract: 565,910. Liquid-pressure servomotorcontrol systems. SIMMONDS DEVELOPMENT CORPORATION, Ltd. (Liquidometer Corporation). June 26, 1943, No. 10359. [Class 135] Apparatus for the regulation of temperature or other physical conditions comprises a casing 21, Fig. 1, in which are mounted bellows 14, 20 connected by a floating link, 38, the middle of which is connected to a pivoted lever 34. Tubes 12, 18 connect the interior of the bellows to dry and wet bulbs respectively when humidity is to be regulated, or have open or closed ends respectively in a single bulb when temperature is to be regulated. When the lever 34 is moved to open a valve 70 through a member 76, low pressure fluid supplied to the casing at 64'passes out through a pipe 66 and opens or allows the opening of a valve controlling the supply of heating or moistening fluid. The fluid in the pipe 66 may act through a diaphragm 88, Fig. 4, to open the valve 94, or through a bellows 116, Fig. 5, and valve 120 to cut off the supply of high pressure fluid which normally acts through a diaphragm 108 to hold the valve 112 closed. In order to adjust the temperature, the head 52 of the bellows 20 may be adjusted by a screw 50 and lever 42 movable over a dial 44. In the form shown in Fig. 6, comprising a gas heater 65 and a pilot burner 87, gas passes to the casing 21 through a pipe 79, and thence when the valve 70 permits through a pipe 83. The valve 139 which is adapted to cut off the supply to the heater 65 is controlled by a spring 135 and the pressures on the diaphragm 75. In the form shown in Fig. 7, when the valve 248 is closed by reason of a temperature fall in a heating system 226, circulation of liquid in a system 230, 234 is prevented and expansion therein acts through a bellows 242 to open a damper 210. Specifications 452,254 and 564,780, [Group XX], and U.S.A. Specification 1,943,267 are referred to.
Patent GB-1079304-A (GB)
Title: Process for continuously manufacturing addition products of ethylene oxide
IPC: C08G65/28
Filed: 1966-03-10
Abstract: Addition products of ethylene oxide are formed by passing alcohols, phenols, or their addition products with ethylene oxide or propylene oxide, with ethylene oxide in a molar ratio of 1:1 to 1:4 in the presence of conventional alkaline catalysts, through an extended tube-like reactor having a small cross-section, and surrounded by a heat exchanger, the mixture is at such a pressure that it is in the liquid state and reaches 170-230 DEG  C. in the first half of the reactor zone, and in the second half passes through a maximum of 240-330 DEG  C., and has a residence time in the reactor zone of 8-150 seconds, and the product leaving the zone is immediately cooled to below 100 DEG  C. The process adds on up to four moles of ethylene oxide.  Examples describe the addition of ethylene oxide to lauryl alcohol, nonylphenol, a mixture of C12-C14 fatty alcohols and a mixture of unsaturated predominantly C18 alcohols.
Patent GB-255526-A (GB)
Title: An improved multi-layer air space inductance coil
IPC: H01F27/00
Filed: 1925-04-22
Abstract: 255,526. Igranic Electric Co., Ltd., and Curtis, A. H. April 22, 1925. Inductances made up from a number of detachable coil units so that the total inductance can be increased or decreased at will are constructed with the coil units resting one within the other. Each unit fs provided with two pairs of terminals. In one construction, Figs. 1, 3, cylindrical coils 1 are wound in sections on bases 2<a>, each base being formed with eight holes 3 which register throughout and take pairs of terminal sockets 3<a> and plugs 3<b>. A bridge 9 is provided for connecting any pair of sockets on the inner base. In another construction, Fig. 9, 10, spacers 10 have dovetail recesses 10<a> for the reception of inner coils similarly fitted. Spring terminal contacts are located in the recesses and a dovetail bridging strip 13 is substituted for the bridge 9 referred to above. Instead of a plug mounting 6, gimbal mountings may be employed. A further construction employing basket coils is described.
Patent GB-372515-A (GB)
Title: Improvements in the method of mole-drainage, and apparatus therefor
IPC: E02F5/10
Filed: 1931-04-09
Abstract: 372,515. Drain-making apparatus. SACK, R., [Firm of], 90, Carl-Heine-Strasse, Leipsic, Germany. April 9, 1931, No. 10510. Convention date, April 9, 1930. [Classes 6 (i) and 33.] A draining tunnel is formed by means of a mole plough that draws into the tunnel a strip of flexible material which is bent into tubular shape in the tunnel by apparatus combined with the plough. The plough carriage 1 carries the mole 2 at the end of a coulter 3 which is vertically adjustable between rollers 4 in a box 5 by means of a hydraulic cylinder 6. The piston in the cylinder 6 is operated by a hand pump 7 taking water from a tank 10, the' direction of movement of the piston being controlled by a cock 9. A weed-cutting disc 11 is connected to an arm 12 in a pivoted holder 13 movable by link, lever, and screw mechanism 14, 15, 16 to lift the disc from the ground. Pivoted in a cavity in the mole 2 is a hollow member 17 within which are the two pivoted jaws 21 of a pair of nippers which are held closed by a coned head 22 on a spring-controlled rod 23 bearing against a stop 25. The jaws 21 engage an eye 26 connected to a nut on a bolt 28 serving to draw a conical plug 29 into a cup 30 to clamp the end of a tube or pipe 31 formed by bending the strip 32. This strip is drawn from a reel 34 on a carriage 33 and is bent into tubular shape by being pulled through a plate 36 at the lower end of a frame 38 projecting into a pit. The frame 38 is adjustable in a guide 39 by means of a cable 40 and a winch 42. The frame 38 can be turned about a pivot 46 into horizontal position when not in use. The stop 25 may be raised by a hand-lever 44 and a rod 45 to unlock the nippers. The strip may pass through several of the plates 36, or may be bent by channelled rollers. A lap joint is produced at the seam. The strip 32 may be of metal, tarboard, &c.
Patent GB-1388082-A (GB)
Title: Mechanical stabilization systems
IPC: G01C21/18
Filed: 1973-03-02
Abstract: 1388082 Gyroscopically stabilized platforms J J DE LA CIERVA 2 March 1973 10519/73 Headings G1C and G1F An implement 5, for example a gun, is mounted on a platform 4 which is stabilized by means of a device 2 mounted on a vehicle via a system allowing movement about both horizontal and vertical axes. The device 2 comprises an electric motor 7 driving a shaft 18 having at one end a rotor 8, including a peripheral permanent magnet 15, which is mounted for universal movement on the shaft, together with a non-magnetic part-spherical sleeve which is rigidly mounted on the shaft 18. A non-rotated disc 11 is mounted within a recess in the rotor 8 and is connected to two hydraulic servo guided pistons 13 which transmit any relative movement between the device housing and the rotor 8 to the platform 4 so as to nullify any vehicle vibration effects on the platform 4. Should tracking of the implement 5 be required, movement of the device 2, via handle 3, causes movement of sleeve 9 relative to the rotor 8 which generates eddy currents in the sleeve 9 and results in the rotor 8 pivoting so as to re-establish its orientation with respect to the sleeve 9 as shown, the stabilized plane of the platform 4 moving with the rotor 8. The time required for realizing this rotor realignment depends upon the magnet strength, the dimensions of the gap between the sleeve 9 and rotor 8, and the angular movement of the rotor 8 &c., but is typically in the range 3-5 seconds. So as to remove the possibility of exceeding the mechanical limits of universal joint 10 which could occur when tracking at excessively high speed, the gap between the rotor 8 and sleeve 9 diminishes from a maximum value in the position shown, to a minimum value at the extremities of the movement. The rotor 8 thus operates normally in the central arc of movement, whereas at the outer regions the eddy currents generated in the sleeve 9 increase due to the diminished air gap and consequently the rotor realignment time is decreased. A flywheel 16 is mounted at the other end of the shaft 18 via a motion inverting gear box 17 so as to rotate in the opposite sense to the rotor 8 &c., and thereby counteract the precessional  couples originating from the sleeve 9 and motor 7 during tracking.
Patent GB-541595-A (GB)
Title: Improvements in and relating to blast protective devices for acoustic instruments
IPC: H04R1/02
Filed: 1940-06-18
Abstract: 541,595. Sound-reproducing instruments. RESLO (SOUND EQUIPMENT), Ltd., and MURKHAM. L. W. June 18, 1940, No. 10530. [Class 13] [Also in Groups XXXIX and VI] In a device for protecting car instruments, loud-speakers &c. from gun or bomb blast a flexible diaphragm controls an acoustic passage which is normally open to transmit sound waves but is closed by an abrupt change of pressure caused, e.g. by the firing of a gun. Sound normally passes through holes 5 in a rubber diaphragm 3 supported by rings 4 and pins 6 in a chamber 1. Excess pressure in either direction moves the diaphragm 3 to close the passage 2 and intercept the sound wave. The device may be located between the diaphragm and horn of a loud-speaker or in an ear instrument to protect the ear drum from blast.
Patent GB-808042-A (GB)
Title: An improved machine for harvesting turnips or other root crops
Inventor: BRUCE JAMES MILNE
IPC: A01D23/02
Filed: 1955-04-13
Abstract: The subject-matter of this Specification is substantially identical with that of Specification 808,041 but the claims differ.
Patent GB-1104589-A (GB)
Title: Improvements in snap-action clips
IPC: D06F55/00
Filed: 1966-03-10
Abstract: 1,104,589. Clamps. V. J. ESPOSITO. 10, March, 1966 [11, March, 1965], No. 10627/66. Heading E2B. [Also in Division A4] A clamp 10 comprises a relatively rigid support section 11 carrying integral opposite resilient arm sections 12, 13 each terminating in a foldable thin web portion 16 or 17, a pair of jaw sections 14, 15, one extending from each web portion and connected to each other by a third foldable thin web portion 18, the jaw sections being selectively retained in open and closed positions by the resilient arm sections and being movable between those positions with a snap or over-centre action produced by resilient deformation of the resilient arm sections. As shown, in which the clamp is moulded from a plastics material, and is used as a clothes peg, the jaw sections 14, 15 are such that in the gripping positions, they form, with the web portion 18 a substantially closed area about an article to be gripped there between, the opening and closing of the jaw sections being effected by relative movements of the clamp, respectively away from and towards the article to be gripped. In other arrangements, Figs. 4 and 5 (not shown), the jaw sections and the third web portion form two adjacent substantially closed areas, and in Figs. 6-8 (not shown) a pair of the clamps is supported on the cross bar of a clothes hanger.
Patent GB-638957-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/02
Filed: 1948-04-20
Abstract: 638,957. Board games. STOCKS, W. R. H., and WILSON, D: April 20, 1948, No. 10842. [Class 132 (ii)]  Apparatus for playing a board game comprises a board marked as shown having starting areas 9 and a goal area 6, and four sets of pieces each comprising one " officer " and six " men ". The areas 9 and the sets of pieces are distinguished by colour.
Patent GB-1038934-A (GB)
Title: Hydraulic speed controller for a machine tool
IPC: B23Q7/12
Filed: 1965-03-15
Abstract: 1,038,934. Machine tool feeds. HAHN E.C., [trading as INDEX-WERKE KOMM GES. HAHN & TESSKY]. March 15, 1965 [March 17, 1964], No. 10844/65. Headings B3B and B3T. [Also in Division F1] Rapid advance followed by slow working advance of a tool-carrying piston 24, Fig. 1 (not shown), towards a workpiece 114 is effected by admitting pressurized hydraulic fluid through the inlet 72 of a stepped piston valve 54 and a duct 32 leading to a chamber 50 on one side of a control piston 46 to displace fluid from a control cylinder chamber 32 through a duct 30 leading to the actuator cylinder chamber 28 to effect said rapid advance of piston 24 until such time as the control piston 46 is arrested by an adjustable stop 48 whereon the resulting-pressure rise in chamber 50 opens a check valve 62 in a throttled branch duct 58 of duct 52 connected to the duct 30 and hence to chamber 28 to effect said slow advance of piston 24 until the latter is arrested by an adjustable stop 40. Movement of the valve piston 64 from its neutral position against a spring catch 84, 86 is effected by a rotary cam 88 driven by the work spindle 16 and on completion of the slow advance of piston 24 the resulting pressure rise in duct 30 is transmitted through a branch duct 106 to one side of a return piston 94 for moving the valve piston 64 to its neutral position thereby connecting ducts 30, 106, 58 and 52 to the valve outlet 74; excess pressure being relieved from control chamber 32 through a check valve 56. In a modification a second actuator 120, Fig. 2 (not shown), and control unit 124 serve to traverse the tool holding piston and cylinder in a direction normal to that of advance and in a further modification a tray 180, Fig. 3 (not shown), is postioned to receive portions cut from the workpiece.
Patent GB-162908-A (GB)
Title: Walking apparatus for the lame
IPC: A61F5/01
Filed: 1920-04-19
Abstract: 162,908. Rogers, F. H., (Maatschappij tot Exploitatie van Welters' Gepatenteerde Hulplooptoestellen voor Knie-en Voetverlamming). April 19, 1920. Foot and leg deformity, treating. - In appliancas for assisting lame persons to walk, in which a lower leg gauntlet such as 1 is connected by flat springs to a heel-piece such as 2, one or more of the flat springs 4, 5 are curved rearwardly at a point between the heel plate and the ankle, thus tending to press the foot forward and upward whenever it is not pressed firmly against. the ground. Provision may be made for fitting additional springs to the appliance when necessary.
Patent GB-488043-A (GB)
Title: Improvements in rudders for ships
IPC: B63H25/38
Filed: 1937-04-16
Abstract: 488,043. Rudders for ships. COLLIE, W. S. April 16, 1937, Nos. 10862 and 32677. [Class 114] A two-part rudder, of the kind in which there is a forward stationary part and movable after part, is constructed so that the forward part tapers aft symmetrically and that movement of the after part provides for a space between the two parts which continues to open, actually or in effect, and permits water to pass from the pressure side of the rudder to the suction side thereof. The fixed forward part 1 is formed as a streamline body, finishing aft beyond the pintle axis 3, whilst the movable part 2, also of streamline form, is carried by arms 4, so that the front edge is aft of the pintles and spaced from the part 1. In sequence, as the part 2 is moved relative to the part 1, there is a gap of increasing magnitude with the increasing angle. The forward edge of the fixed member 1 may be vertical or the upper and lower halves inclined to agree with the rake of the propeller blades, and the centre part may be enlarged at 5 to form a fairing for the propeller boss. Also, instead of the fixed part 1 being symmetrical it may be assymmetrical, and its shape reversed relatively above and below the propeller axis. Also, the main movable part may be slightly asymmetric to neutralize the flow from the single propeller. In another form, the stern of a ship may be extended to form or to carry the fixed part, and the movable part is then carried thereby. In other modifications, the movable part may be formed of a single plate or partly single plate and partly streamline section blade.
Patent GB-455765-A (GB)
Title: Methods and apparatus for the location of objects by means of short wave radio energy
IPC: G01S13/46
Filed: 1936-04-15
Abstract: 455,765. Locating conductors. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. April 15, 1936, No. 10891. Convention date, April 20, 1935. [Class 37] Relates to a known method of locating a hidden or buried conductor by mounting a short-wave radio transmitter E, Fig. 3, on the same axis V as a receiver R, and rotating the arrangement so that the exploring beam sweeps out a plane in the area containing the conductor. A similar combination may be mounted at the other end of the base-line. According to the invention the axis V is slowly rotated until a reflected signal is received by R, whereupon a relay H, Fig. 4, is automatically operated to stop the drive. By opening a switch I, the drive is restored.