baber/WOPTO huggingface dataset:
Patent GB-359013-A (GB)
Title: Improvements in removing phenols from oils, tars and the like
IPC: C10G31/08
Filed: 1930-07-11
Abstract: Phenol, cresol, xylenol, and other phenols are removed from oils, tars, and the like by treating a mixture of the oil and water in countercurrent column with a descending stream of water. Preferably the mixture, the stream of water, or both are heated to above the critical solution temperature of the phenols in water, i.e. above 63 DEG  C. for phenol and above 120 DEG  C. for cresols. Residual phenols may be removed by other methods, e.g. extraction with aqueous alcohol.  In an example, a fraction boiling up to 200 DEG  C. obtained by the hydrogenation of bituminous coal in presence of ferric oxide, and containing 11 per cent of phenols, is mixed with an equal volume of water in the centrifuge at 170 DEG  C. and 3-4 atmospheres, and the hot mixture is passed up a coke-filled tower against a stream of 0,5 volume of water at 170 DEG  C. and 3-4 atmospheres, the time of contact being 15 minutes. Phenols are separated from the 2-3 per cent aqueous solution passing out at the foot of the tower by cooling and allowing to separate into layers. The lower layer containing 1 per cent of phenols is heated to 170 DEG C. and re-used as solvent.ALSO:Phenol, cresol, xylenol and other phenols are removed from oils, tars, and the like by treating a mixture of the oil and water in countercurrent column with a descending stream of water. Preferably the mixture, the stream of water, or both are heated to above the critical solution temperature of the phenols in water, i.e. above 63 DEG  C. for phenol and above 120 DEG  C. for cresols. Residual phenols may be removed by other methods, e.g. extraction with aqueous alcohol.  In an example, a fraction boiling up to 200 DEG  C. obtained by the hydrogenation of bituminous coal in presence of ferric oxide, and containing 11 per cent of phenols, is mixed with an equal volume of water in a centrifuge at 170 DEG  C. and 3-4 atmospheres, and the hot mixture is passed up a coke-filled tower against a stream of 0,5 volume of water at 170 DEG  C. and 3-4 atmospheres, the time of contact being 15 minutes. Phenols are separated from the 2-3 per cent aqueous solution passing out at the foot of the tower by cooling and allowing to separate into layers.  The lower layer containing 1 per cent of phenols is heated to 170 DEG  C. and re-used as solvent.
Patent GB-676590-A (GB)
Title: Improvements in or relating to circuits for transistors
IPC: H03F1/56
Filed: 1950-08-25
Abstract: 676,590. Semi - conductor amplifiers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 25, 1950 [Aug. 30, 1949], No. 21068/50. Class 40 (iv). An amplifier comprises a transistor having one end of an impedance which is common to the input and output circuits connected to the base electrode, and the other end connected through a total output impedance Ru to the collector electrode, the value of Ru being b(R 21  - R 22 ) where b lies between 0.05 and 1.2 and R 21  and R 22  represent the parameters of the transistor circuit. In Fig. 1, the input is applied to terminals 1 between the emitter electrode 7 and the base electrode 6, a resistance Ro being connected in series with the base electrode. The output is taken from the collector electrode 8. It is shown that if the impedance of the output circuit is as defined above, the impedance Ro may be varied to provide a desired input impedance without affecting the gain of the amplifier. A modification is described in which the base electrode is connected to a tapping on a resistance connected across the bias battery, so that Ro is at least part constituted by two resistances in parallel.
Patent GB-121736-A (GB)
Title: An Improved Detachable Tab for Braces or Suspenders.
IPC: A41F3/02
Filed: 1918-12-18
Abstract: 121,736. Dejardin, C. E. J., and Willems, G. C. F., (trading as Dejardin et Willems). Oct. 13, 1917, [Convention date]. Braces.-The detachable tab a is provided with a cross-piece b of flexible material by means of the metallic sleeves c so as to close entirely the arc formed by the tab, and thus prevent accidental disengagement.
Patent GB-221519-A (GB)
Title: Improvements in railway systems
IPC: B61B13/10
Filed: 1924-09-08
Abstract: 221,519. Sachs, P. Sept. 8, 1923, [Convention date]. Tunnels. - Alter. nate trains stop at alternate stations arranged along a continuous island platform D provided with stairways d<1> leading to an entrance C'. In the case of an underground railway, the tunnels would thus be of uniform width. The stations can thus be moved or the trains lengthened without alteration.
Patent GB-759566-A (GB)
Title: Improvements in or relating to circuit arrangements employing transistors for controlling electric loads
IPC: H04Q1/442
Filed: 1954-07-21
Abstract: 759,566. Telephone transmission systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 21, 1954 [July 22, 1953], No. 21262/54. Class 40 (4). [Also in Group XL (c)] Signal pulses and speech are fed in over terminals 2 and the speech separated out by filter 3, the pulses being rectified by diode 5 and fed over smoothing network 6 to the base of the transistor 7. The bias on the transistor is normally such as to result in negligible base and collector current but the incoming signal causes these to increase to high values to operate relay 1. In a modification, the parallel combination of a capacitor and resistor are arranged in series with the relay to facilitate the operation while retaining a low average current through the relay.
Patent GB-1436764-A (GB)
Title: Seat belt storage reel with electrically operated locking device
IPC: B60R22/343
Filed: 1973-05-04
Abstract: 1436764 Seat belt reel BRITAX (LONDON) Ltd 6 May 1974 [4 May 1973] 21290/73 Heading A3V A seat belt reel locked by a pawl 15 released from an electromagnetic coil 19 at an emergency includes a non-magnetic barrier associated with the pawl and coil to reduce remanence. The barrier may comprise a plastics sleeve on the pawl, or rubber pads 24, 26 on the pawl or coil. The coil releases the pawl in response to an inertia responsive switch or depression of the brake pedal when the vehicle is travelling above a certain speed. The reel may also be locked if the belt unwinds rapidly. In the embodiment shown in Figure 4 the reel has a second ratchet 41 and associated resilient pawl 43. Once pawl 43 has engaged, tension on the belt deforms the pawl, drawing the main pawl into a tooth of the ratchet 13. The pawl can be released from the coil manually by depressing a plunger 51.
Patent GB-378186-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41D13/02
Filed: 1931-07-25
Abstract: 378,186. Overall garments. GLEISER, S., 20, Glasshouse Yard, London. July 25, 1931, No. 21306. [Class 141.] An overall comprises a jacket portion 1 and a trousers portion 2 with co-operating means on the two portions to secure them together in any one of a number of positions, so that the overall is adjustable in length. The means, which allow the portions 1, 2 to be readily detached from each other, comprise loops 4 or the equivalent around the top of the trousers portion 2, a series of loops 7 .. 7c, or the equivalent, around the bottom of the jacket portion, and a belt 3 adapted to pass through the loops 4 on the trousers portion 2, and through one of the series of loops 7 .. 7c on the jacket portion 1.
Patent GB-925397-A (GB)
Title: Improvements in or relating to semi-conductor arrangements
IPC: H03K17/72
Filed: 1959-06-22
Abstract: 925,397. Semi-conductor devices. SIEMENS & HALSKE A.G. June 22, 1959 [June 25, 1958], No. 21314/59. Class 37. In a semi-conductor breakdown device comprising a PNPN zone configuration a resistive path including a PP+ junction is used to shunt the outer junction 1, as shown in Fig. 4, or junction 3 is shorted by a resistive path including an NN+ junction to zone III. The device shown in Fig. 3 and its NPNN+ equivalent, which are said to be electrical equivalents of these arrangements, are also possible. In the Fig. 3 device the outer N zone is replaced by a P+ zone including both donor and acceptor impurities, the donor concentration being greater than the acceptor concentration in the adjacent zone. In the Fig. 4 arrangement the resistive path shunts junction 1 and this functions to reduce the effective amplification factor α of zones I, II, III and thus of the device as a whole. With increasing bias the forward resistance of junction 1 falls to render the shunt less effective so that ultimately a, which increases with current across the junction rises to make the overall α exceed 1 and the device becomes conductive. The voltage at which breakdown occurs is determined by the total resistance of the shunt path which may include a resistor R. If junction 3 has a low Zener breakdown voltage the device is conductive with the bias reversed because of the shunt. The resistor may be replaced by a rectifier or by a resistor sensitive to light, heat or magnetic field to provide switching in response to changes in these conditions. In the alternative device, Fig. 3, control over the breakdown voltage may be provided by a variable resistor R shunting junction 3. By virtue of the reverse conductivity both arrangements may be switched to the breakdown condition using a voltage less than the normal forward breakdown voltage by a momentary reversal of the applied voltage. During the reversal the body becomes swamped with minority carriers which momentarily lower the forward breakdown voltage. A PNPP+ device of the Fig. 4 type may be formed from an 8-10 ohm cm. P-type germanium disc by the steps of diffusing arsenic into its entire surface to form an N-type layer, etching in CP4, masking a circular area on one face and then etching to remove the N-type layer from the rest of the wafer, alloying a ball of 98% indium, 2% arsenic (by weight) to the opposite face of the wafer and finally vacuum depositing aluminium on the formerly masked area and alloying it thereto.
Patent GB-258412-A (GB)
Title: Improvements in and relating to the manufacture of glass, sand or flint paper, emerycloth, and like abrasives
IPC: C08L75/04
Filed: 1925-08-26
Abstract: 258,412. Klein, C.A., and Brown, R. S. Aug. 26, 1925. Adhesives for use in the manufacture of sand paper, emery cloth &c. consist of a drying oil, for example, linseed oil or tung oil, and a gum, for example dammar or copal, resin, or synthetic resin. Paraffin or other wax may be added in amounts of 2¢ to 5 per cent.
Patent GB-296081-A (GB)
Title: Improvements in taps or cocks
IPC: F16K1/48
Filed: 1928-07-24
Abstract: 296,081. Non Drip Taps Proprietary, Ltd., (Assignees of Sadler, W., and Kirk, A. E.). Aug. 26, 1927, [Convention date]. Lift valves. - In taps or cocks, the loose valve member o, which carries a tapered washer f engaging a tapered sealing e, is adapted to be raised by the pressure of the controlled fluid and has sliding interengagement with the casing to prevent rotation. The operating spindle m screws within a bonnet or cover l threaded into the casing a, the dise h on the valve member being formed with recesses j to engage guide ribs k in the casing. The washer is secured by a nut on a stem depending from the disc h. Reference has been directed by the Comptroller to Specification 15426/00.
Patent GB-479439-A (GB)
Title: Improvements in or relating to distant control mechanism
IPC: F16C1/26
Filed: 1936-08-04
Abstract: 479,439. Bowden mechanism; pipe joints. SILENTBLOC, Ltd., and HUTTON, P.C. Aug. 4, 1936, No. 21462. [Class 80 (iii)] [Also in Group XXVIII] In distant - control mechanism comprising a tubular guide through which passes a flexible control member and particularly where the guide is formed as a rigid tube or a series of lengths of rigid tubes, a flexible joint is provided for connecting adjacent ends of two lengths of tube. The joint comprises a rigid outer cylindrical socket A and a flexible tubular inner member B comprising either a single coil or two or more coils, adjacent coils being wound in opposite directions. Between the members A, B is disposed a bushing C of rubber or other resilient material so compressed between the members that it adheres to them. Alternatively, adherence may be produced by vulcanization or cementing. The ends of the flexible member B extend beyond the ends of the bushing whose ends C\ C<2>, in turn, extend beyond the middle portion thereof. Rigidly secured to the ends of member B are nipples D to which the guide tubes D<2> are secured by unions D<1>. The outer member A may have lugs for securing it to a desired part. The joint permits of limited angular movement between the two lengths of tube and also of a limited movement of the two lengths of tube as a whole, relative to the support. In a modification, the bushing is of the same radius throughout.
Patent GB-736671-A (GB)
Title: Improvements in and relating to spraying and atomising apparatus
IPC: A61M11/02
Filed: 1949-08-18
Abstract: 736,671. Powder distributers. FURMAN, B. N. Nov. 20,1950 [Aug. 18, 1949], No. 21496/49. Class 18. [Also in Group XXIX] A powder container 1 with its walls of flexible plastic material has a detachable closure 3 with a nozzle body 4 secured thereto, and tubes 9, 9a are screwed into the closure and communicate with a bore 5 in the nozzle body. On compression of the container walls air is forced through the tube 9a and sprays powder supplied to the bore through the tube 9 from the nozzle 7. Alternatively, Fig. 3, the container walls are rigid and the closure 3 supports a similar nozzle body 4 with tubes &c, and a compressible rubber bulb 10. On compression of the latter air is forced into the container through an orifice 11a to effect spraying.
Patent GB-864722-A (GB)
Title: Duplex aluminium alloy material
IPC: B32B15/01
Filed: 1959-06-24
Abstract: Corrosion by hot water of an aluminium alloy containing magnesium and silicon is prevented by cladding the base alloy with an alloy consisting of Zn 0.5-6%; A1 and impurities the remainder, the impurities totaling not more than 0.15%.  The base alloy may have the following composition: Mg 0.4-1.5%; Si 0.4-1.5%; A1 the remainder. Cu 0.1-0.5% and/or Cr 0.1-0.5% may also be present in the base alloy as may be a total of 0.25% of one or more of the following: Ti, Mo, Zr, Mn 0.05-0.25% each; B 0.001-0.1%.  The duplex material may be heat treated by solution heating to 940-1050 DEG F quenching and ageing at 300-475 DEG F for 1-24 hours.  Hot water tanks and pipe may be made from the duplex material.
Patent GB-1505528-A (GB)
Title: Electronic traffic control system
IPC: G08G1/01
Filed: 1975-05-20
Abstract: 1505528 Road traffic signalling systems AUTOSTRADE CONCESSIONI e COSTRUZIONI AUTOSTRADE SpA 20 May 1975 [28 May 1974] 21665/75 Heading G4Q In a road traffic signalling system, including provision for two-way communication between an operating centre and vehicles on a stretch of road, a central computer is connected to the operating centre, vehicle detectors spaced along the stretch of road obtain and record information on vehicle movement, the vehicle detectors are connected in groups spaced along discrete subsidiary stretches of road, at least one meteorological detector is associated with each subsidiary stretch of road, an individual information transmission station is associated with each subsidiary stretch of road, and each such station includes means for transmitting information to and receiving information from each individual vehicle and meteorological detector along its subsidiary stretch of road. Furthermore the information transmission stations are arranged in groups with each group being connected to an individual control computer to monitor the traffic and meteorological conditions; the control computers are programmed to produce and transmit to the central computer traffic flow and meteorological data, to receive traffic flow forecasts from the central computer, to compare actual and forecast data and to effect an alarm procedure when the differences are large; and the alarm procedure includes activation of visual signals and transmission of messages to vehicles along the section via a communications system which is also connected to the operating centre and accessible by manually operable devices whereby motorists may transmit coded information to the operating centre. Traffic parameters may be measured by radio wave absorption or echo amplitude, and the communications system may utilize radio waves or induction. Details of a communication system are described.
Patent GB-244510-A (GB)
Title: Improvements in or relating to linings for mine and quarry shafts, tunnels and the like made of bricks, moulded plates or the like
IPC: E21D11/04
Filed: 1924-09-13
Abstract: 244,510. Schõfer, H. Sept. 13, 1924. Composite bricks and blocks; bricks and blocks, special shapes of. - Mine galleries, tunnels, or shafts are lined with wedgeshaped blocks a of thin concrete or like material, either of angle form, as shown in Fig. 1, T-shape, or U-shape, as shown in Fig. 3. The blocks may be provided with perforations or recesses such as b, Fig. 12, or be provided with central portions which are reduced in thickness or breadth or in both directions, as illustrated in Fig. 16. Bonding recesses c may also be provided. Heat insulation material a, y, Fig. 23, may be fitted to the inner or outer faces which material may have a recess i to permit deformation, and may be offset, Fig. 25, to break joint with the blocks proper.
Patent GB-485071-A (GB)
Title: Improvements in and relating to the veneering of wood and the like
IPC: B27D1/08
Filed: 1937-08-06
Abstract: 485,071. Veneering ; shaping by pressure. BARLOW, E. W. Aug. 6, 1937, No. 21722. [Classes 145 (i) and 145 (ii)] In a moulded veneered article having con tours curved in mutually transverse directions, the veneer sheet is mitered as at 13 to permit it to assume the desired contour anc then is stuck to a wooc or like base 10 and simultaneouslymoulded to shape. The veneer and the base are subjected to heat and to pressure applied by a deformable pneumatic or other fluid pressure member. The base may be of sheet form and is then moulded simultaneously with the application of the veneer.
Patent GB-441673-A (GB)
Title: Improvements in and relating to refrigerating apparatus
IPC: F25B45/00
Filed: 1935-07-31
Abstract: 441,673. Refrigerating. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. July 31, 1935, No. 21735. Convention date, Aug. 1, 1934. [Class 29. Compression machines -In a refrigerating machine including a com pressor 21, a flooded evaporator 17, a liquid receiver 26 and a valve 28 between the receive] and evaporator, a byepass 36 is providec around the valve 28 in order that the systeir may be evacuated anc charged through a single external connection 33 After charging, the connection 33 is closed by a needle valve and the byepass passage blocked by pinching it at the section 37. The L- shaped evaporator 19 and its associated header 18 are of the construction described in Specification 438,707.
Patent GB-1208238-A (GB)
Title: Process for dyeing polymeric or copolymeric acrylonitrile fibres
IPC: D06P1/66
Filed: 1969-04-29
Abstract: 1,208,238. Quaternary ammonium compounds. J. R. GEIGY A.G. 29 April, 1969 [30 April, 1968], No. 21737/69. Heading C2C. [Also in Division D1] Quaternary ammonium compounds of Formula I in which R 1  is an aliphatic hydrocarbon radical of at least 8 carbon atoms, R 2  is a C 1-5  alkyl radical, R 3  is an alkyl radical optionally substituted by hydroxyl and/or phenyl groups, R 4  is a C 1-5  alkylene bridge and X- is the anion equivalent of an acid are. prepared by reacting the tertiary amines with epichlorohydrin. N - methyl N - dodecyl - N - # - hydroxy - #- phenylethylamine is obtained by reacting styrene oxide with N-methyl-N-dodecylamine.
Patent GB-646764-A (GB)
Title: Improvements in and relating to the manufacture of contrast agents, comprising iodo-substituted esters
Inventor: SPEYER KATHERINE NICHOLAS
IPC: A61K49/04
Filed: 1948-08-18
Abstract: Esters of the general formula <FORM:0646764/IV (b)/1> wherein R is a saturated alkyl group containing 3 to 7 carbon atoms arranged in a straight line or in a chain branched at one point only, and R1 and R2 are alternatively iodine or a saturated alkyl group containing 1 to 4 carbon atoms provided that one and only one of the two groups R1 and R2 is iodine, are prepared by esterifying an iodophenol of the general formula <FORM:0646764/IV (b)/2> with an acyl group RCO-, where R,R1 and R2 have the above significance, e.g. the diiodophenol may be reacted with an acid chloride in the presence or absence of a base such as pyridine or caustic alkali, or the diiodophenol may be reacted with an acid in the presence of thionyl chloride.  A number of detailed examples are given.
Patent GB-795030-A (GB)
Title: Improvements in incandescent electric lamps or electric discharge tubes
IPC: H01J5/50
Filed: 1956-07-16
Abstract: 795,030. Lamp-caps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 16, 1956 [July 19, 1955], No. 21907/56. Class 38 (1). In a lamp 1 wherein the lead-wires 10 are brought out through flat pinches 5, 6 or a single pinch at one end of the lamp, each pinch is provided with a contact formed from a flat plate 20, Fig. 4, having a central hole 21 with recesses 22, 23 and through which the pinch is passed with the side edges engaging the recesses. The pinch is wider than the lamp bulb so that when the plate has passed the shoulders 13, 14 formed by the inner corners of the pinch, it can be rotated to secure it on the pinch. The plate is then folded in two so as to engage both sides of the pinch and is compressed on to the pinch along the front edge 28 thereof and at the corners 29, 30, the outer ends of the plate being secured together by an eyelet 27 or by tags on one end bent over the other end.. The lead-wire 10 is spot welded to the plate at 26. Where the lamp has a single pinch the recesses 22, 23 need not be provided in the plate since the latter can be passed over the lamp bulb. Another form of contact for use with such a lamp is shown in Fig. 5 and comprises a wire ring 40 having tags 41, 42 soldered thereto. The pinch may have a width equal to the diameter of the lamp bulb in which case shoulders for engagement by the contact are provided by a constriction located adjacent the lamp bulb or intermediate the ends of the pinch (Figs. 6 and 7, not shown). Another form of pinch (Fig. 8, not shown) gradually increases in width towards the outer end. Fig. 9 shows a lamp having a pinch 58 similar to that shown in Fig. 1 except that two lead-wires 59, 60 are brought out therethrough. In this case the two ends of the contact plate are not pressed together along the front edge of the pinch but enclose an insulating spacer 65 which projects outside the contact and carries a contact eyelet 69. The spacer has passages 68, 66 for the lead-wires 60, 59 which lead respectively to the eyelet 69 and an eyelet 67 securing the ends of the contact together. Such a construction may be extended for use with lamps wherein three or more lead-wires are brought out through a pinch.
Patent GB-226852-A (GB)
Title: Improvements in or relating to heavy portable machinery such as excavators and digging machinery
IPC: E02F9/02
Filed: 1923-08-30
Abstract: 226,852. White, A. E., (Bucyrus Co.). Aug. 30, 1923. Disc wheels.-A supporting frame for heavy portable machinery has wheels with wide treads 32 overhanging the hubs 31 and the axles and connected at their inner edges to the hubs by solid webs. Spacing collars 34 are movable to the outer sides of the front wheels to reduce the width of the machine for transport.