baber/WOPTO huggingface dataset:
Patent GB-1228884-A (GB)
IPC: C07C5/48
Filed: 1968-09-06
Abstract: 1,228,884. Recovery of bromine and/or iodine. BADISCHE ANILIN & SODA FABRIK A.G. 6 Sept., 1968 [7 Sept., 1967], No. 42423/68. Heading C1A. [Also in Divisions C2 and C5] Ammonium bromide and/or iodide are recovered from the products of oxydehydrogenation reactions in which bromine and/or iodine act as catalysts by quenching the reaction products with aqueous ammonia containing sufficient hydrazine to reduce the elementary halogens to hydrogen halides, separating the aqueous phase containing ammonium bromide and/or iodide, separating the organic byproducts containing bromine and/or iodine from the organic phase by distillation, burning the organic by-products with gas containing free oxygen and scrubbing the gas from the combustion with aqueous ammonia containing hydrazine to form ammonium bromide and/or ammonium iodide. The gas resulting from the oxydehydrogenation process which consists mainly of combustion and pyrolysis products of the compounds to be dehydrogenated or of the reaction products may be supplied to the combustion furnace for the organic products containing bromine and/or iodine. The aqueous phase separated after quenching the reaction product may be combined with the solution obtained by scrubbing the combustion gases, concentrated and recycled as the catalyst solution for the oxydehydrogenation reaction. The heat liberated by the combustion of the organic by-products may be used for concentrating the solutions of ammonium bromide and/or iodide to the concentration required for recycling. The organic phase from the oxydehydrogen may be brought into contact with an aqueous ammonia solution containing hydrazine before distillation, the aqueous solution being separated from the organic phase and being united with the main stream of dilute ammonium bromide and/or iodide.
Patent GB-1229073-A (GB)
IPC: A01B3/426
Filed: 1970-03-03
Abstract: 1,229,073. Device for reversing a reversible plough. INTERNATIONAL HARVESTER CO. 3 March, 1970 [31 March, 1969], No. 10038/70. Heading A1B. A device for reversing a reversible plough operates as follows: the three-point hitch of the towing tractor is raised so that its arms leave the positions 7, 29 and occupy the positions 7A, 29A thus raising the complete plough off the land. The locking lever 11 is disengaged allowing the tension in link 29A to force two flat steel bars 16 downwards with their interconnecting cross-pins 18, 19 sliding in the slots 21, 22 of the vertical assembly 14. This occurs against the compression of the spring 25 one end of which is attached to cross-member 17 (which also connects bars 16) and the other to the drawbar hitch unit 2 of the plough. This causes a link arm 39 to pivot in an anti-clockwise sense by means of the abutment member 42 resting on bearing member 43. Member 42 is shown as being held against member 43 by a tension spring 47 by virtue of the moment denoted by "E". As link-arm 39 rotates, the control-rod 35 is raised which in turn rotates, by means of an eccentric bearing 36, the rversible portoin 4 of the plough. The bearing 36 starts to move clockwise as seen in Fig. 1A; before it completes 90 degrees, the link-arm 39 is in such a position that the moment "E" is reversed causing the abutment member 42 to leave the bearing 43 in an anti-clockwise direction and fall clear of the bearing 43 as the control-rod 35 descends during the second right-angle of rotation. The inertia of the plough maintains rotation. The lower limit of travel of the bars 16 is defined by a cam 51 or a screwed support (not shown), adjustment being provided so that the plough is given the amount of energy which will just allow it to complete 180 degrees, excessive mechanical jolts being thus avoided. When the plough has fully reversed it is lowered to the land on the three-point hitch allowing the spring 25 to return bars 16 to their original position; member 42 also returns to bearing 43 ready for the next reversal.
Patent GB-1229491-A (GB)
IPC: G01R19/155
Filed: 1968-04-18
Abstract: 1,229,491. Detection of A. C. voltages. IPA INTERNATIONALE PATENT-UND LIZENZ ANSTALT. April 18, 1968 [April 21, 1967], No.18292/68. Headings G1A and G1U. The presence of an A.C. voltage on a conductor is detected by a rare gas-filled discharge lamp in association with a photo-resistive element connected in circuit with a signalling device e.g. an audible or visible alarm. In Fig.1, a probe is made to contact the conductor so causing discharge of a neon tube 4 connected between the probe and a conductive member 6 which exhibits a certain capacitance with respect to earth. The illumination of the neon is detected by a photo-cell 8, e.g. a cadmium sulphide or selenide type photo-resistor, so as to operate an electronic circuit 9 to connect power from battery 10 to the signalling device 11. The circuit 9 may be a thyristor, Fig.2, (not shown), which may be preceded by a transistor pre-amplifier stage, Fig.3, (not shown). Two constructional arrangements are described. In one arrangement for detecting voltages of the order of kV on a conductor, Fig.4, (not shown) an insulating casing carried at the end of an insulating pole has a probe for contacting the conductor at the other end of the casing from the pole. The neon tube mounted inside the casing is connected between the probe and a conductive inner sleeve of the casing. The photocell and signalling circuit are mounted insulated from the neon circuit inside the casing. When the casing is held in the hand, low voltages may be detected. An extra contact probe at the end of a long wire may be plugged into the casing to be used instead of the feeler mounted on the casing. In another arrangement, Fig.5, (not shown) a hollow insulating pole includes a probe at one end with the neon, and the sleeve conductor and the photo-cell and associated circuitry at the other. A light guide, e.g. a glass rod or bundle or optic fibres, conducts light from the neon to the cell. A test circuit for checking operation of the device, Fig.6, (not shown), may be fitted to both devices.
Patent GB-1231260-A (GB)
IPC: C25D13/22
Filed: 1968-09-26
Abstract: 1,231,260. Power supply system for electrophoretic deposition. SIEMENSA.G. Sept.26, 1968 [Sept.30, 1967], No.45868/68. Heading C7B. [Also in Divisions H2F and H2K] - A power supply system for an electro-phoretic lacquering process comprises a rectifier circuit 3 connected to an A. C. R.S.T. and having its two output terminals connected to electrodes 5, 6 of the lacquering bath 7 with a choke 4 in one of the connections and voltage sensitive device 15 connected across the electrodes in parallel with a normally open switch 16 which is closed by the voltage sensitive device when the electrode voltage falls by a predetermined amount. As shown the electrode 5 is a workpiece and the electrode 6 is the wall of a dip tank. The rectifier circuit 3 comprises thyristors which are controlled by a voltage regulator 8 and are rendered non-conductive after the thyristor 16 is fired by the voltage sensitive device 15. A auxiliary electrode 9, supplied through a choke 14 and rectifier circuit 13 similar to that of the main electrodes, is provided to generate an electric field within the workpiece 5. The thyristor 16 may also be fired by a voltage sensitive device 17, in the auxiliary electrode circuit, which also controls a shorting thyristor 18 in its own circuit. The smoothing chokes are preferably ironless.
Patent GB-1231771-A (GB)
IPC: B65D85/57
Filed: 1969-01-08
Abstract: 1,231,771. Gramophone record sleeves. N. J. GARROD. 10 Sept., 1969 [8 Jan., 1969], No. 1200/69. Heading B6A. A gramophone record sleeve made from two blanks defining respective front and rear side members as described in Sepcification 1,119,823 is provided with a closure flap 8 which is articulated to the rear side member 2 along a hinge line 9 parallel to and below a fold line 20 which is co-extensive with the free end of the sleeve opening. The displacement of part of the flap into the interior of the sleeve is prevented by tabs 11 integral with the end flaps 17, 18 forming the closed edges of the sleeve.
Patent GB-1233393-A (GB)
IPC: A47B53/02
Filed: 1968-04-01
Abstract: 1,233,393. Rail vehicles. BLAKDALE PRODUCTS Ltd. 1 April, 1969 [1 April, 1968], No. 15481/68. Heading B7L. [Also in Divisions A4 and F2] A storage bay 1 comprises a wheeled chassis (2) at least one wheel of which is coupled to a power input shaft (9) which is driven by a portable motor 14 which is releasably secured to the shaft. A mobile storage equipment installation comprises a plurality of bays 1 which run on floor tracks 3. The power input unit comprises spaced parallel input and output shafts which engage axially with the driving motor and an axle (7) of the storage bay respectively, the shafts being interconnected by a belt or sprocket chain drive.
Patent GB-1233897-A (GB)
IPC: F01P7/08
Filed: 1967-07-10
Abstract: 1,233,897. 897. Engine cooling fans; axial-flow fans. LEYLAND MOTORS Ltd. July 10, 1968 [July 10, 1967], No.31660/67. Headings F1B; F1C. [Also in Division F2] A cooling fan 11 is driven from shaft 18 through a conical clutch 16, 14, which is held engaged by springs 40 and is disengaged by hydraulic pressure supplied through pipe 34 under the control of an engine temperature responsive thermostat 52. The fan and clutch part 14 are carried by an axially movable sleeve 28 formed with a flange 30 forming a piston moved against springs 40 by the hydraulic pressure, which may be the lubricating oil pressure. Valve 54 controlled by thermostat 52 is opened at low engine temperature to admit the hydraulic fluid to pipe 34 and disengage the clutch.
Patent GB-1238234-A (GB)
IPC: H03F1/54
Filed: 1969-05-07
Abstract: 1,238,234. Radio signalling. NIPPON ELECTRIC CO. Ltd. 7 May, 1969 [14 May, 1968], No. 23386/69. Heading H4L. A microwave power amplifier system comprises two power amplifiers, each having sufficient bandwidth to accommodate first and second multiplexed signals having different bandwidths, means for applying the first and second signals to the two amplifiers respectively, means for monitoring the amplifiers to determine whether they are in operative condition and means to switch both signals to an operative amplifier when the other amplifier is inoperative as determined by the monitoring means. As shown in Fig. 3, switches 1, 2, 7, 8, 11, are normally set to connect the regular TV signal to the power amplifier HPA 1 and the regular telephone signal TP to power amplifier HPA 2, the standby inputs being connected to a hybrid coil 5 which combines these inputs and supplies them to dummy loads connected to switches 7 and 8. The regular signals are supplied from amplifiers HPA 1, HPA 2 via switches 16, 17 respectively to a hybrid 18 feeding the aerial 20 via switch 19. If HPA 2 becomes faulty, as determined by known monitoring means, switches 1, 2, 7, 16, 19, are switched to the dotted lines, and the regular TV and TP signals are combined in the hybrid 5 and fed to HPA 1 via switches 7 and 11 and from HPA 1 to the aerial via switches 16 and 19. Similarly, when HPA 1 is inoperative, switches 1, 2, 8, 17, 19 are switched over to combine the input signals in HPA 2. Various other switch settings for different conditions are tabulated. The switch 11 may be dispensed with, Fig. 2 (not shown). In a modification, Fig. 4 (not shown) an additional switch (49) allows both amplifiers to be terminated with a dummy load when the system is under repair. In a further arrangement, Fig. 5 (not shown) the switches and hybrid 16 to 19 are replaced by a magic-T junction.
Patent GB-1238604-A (GB)
IPC: H02K13/00
Filed: 1969-11-10
Abstract: 1,238,604. Making commutators; soldering. FORD MOTOR CO. Ltd. 10 Nov., 1969 [30 Dec., 1968], No. 54852/69. Headings B3A and B3R. [Also in Division H2] In making a commutator two discs are stamped from copper blanks 60, 66, Figs. 7, 8 (not shown), of unequal diameter in such a way that each comprises a plurality of segments joined together by a web at the outer peripheral edge of the disc; the discs are then brazed together at their centres and the assembly then placed in a mould together with a metal e.g. steel bush 48, Figs. 1, 2, 10 (not shown); an insulating compound, e.g. plastics material, is then placed in the mould to fill the spaces between the discs and between the segments of each disc. The disc of smaller diameter is then machined to remove its peripheral web and the assembly then placed on a rotor shaft of an electric machine (see Division H2) with the disc of smaller diameter nearer the rotor core. The larger disc is then machined to remove its peripheral web. Conductors (20) are then inserted in holes in the segments of the smaller disc, and the conductors connected to the segments by rolling the disc in a bath of solder. This process is repeated to connect further conductors (18) to the segments of the larger disc. Finally the axially exposed end face (54) of the larger disc is machined to form a brush accommodating track.
Patent GB-1238732-A (GB)
IPC: G06V30/10
Filed: 1969-01-17
Abstract: 1,238,732. Character recognition. FUJITSU Ltd. 17 Jan., 1969 [18 Jan., 1968], No. 2995/69. Heading G4R. A character recognition device stores signals from scanning a character and from them detects lines of the character having a particular orientation, means being provided responsive to the detection signals to give one of two output signals, a first output signal indicating a continuous line or a non-continuous line having one or more breaks of less than a predetermined magnitude, and a second output signal indicating termination of a line or a break in a line of more than the predetermined magnitude. Fig. 9 detects vertical strokes in a character scanned in a series of vertical scans, the character signals being applied at 39 to shift registers 40, 42, the latter via a one-scan delay 41. ANDs 43, 45, 47 detect white-to-black horizontal transitions, and 44, 46, 48 detect blackto-white. Three vertically adjacent white-toblacks cause AND 49 to set bi-stable 53, and three vertically adjacent black-to-whites cause AND 50 to reset bi-stable 54. Bi-stables 53, 54 are reset and set respectively by the conjunctions of the inverses of the inputs to ANDs 49, 50 respectively, by ANDs 51, 52. The conditions thus imposed for change of state of bistables 53, 54 eliminate black and white noise. Each shift register could have four rather than three, bi-stables. Fig. 10 detects horizontal strokes, the same character signals as in Fig. 9 being applied at 57 to shift registers 58, 60, 62 directly and via delays 59, 61 of one and two scans respectively. ANDs 63, 64, 65 detect white-to-black vertical transitions and 66, 67, 68 detect black-towhite. When a character is present, a signal on terminal 83 enables ANDs 74, 75 to pass indications of sets of horizontally adjacent transitions detected by ANDs 69, 70 to recirculating delay loops (of one scan duration) 79, 80. ANDs 73, 76, enabled as shown, are used for clearing the loops 79, 80. A fourth shift register, preceded by a 3-scan delay, may be included.
Patent GB-1252629-A (GB)
IPC: C02F1/463
Filed: 1969-05-13
Abstract: 1,252,629. Electrolytic treatment of effluent. ONTARIO RESEARCH FOUNDATION. May 4, 1970, [May 13, 1969], No. 24442/69. Heading C7B. A sewage liquid effluent containing phosphorus material is treated to reduce the phosphorus material content thereof by subjecting the effluent to electrolysis using alternating current or pulsating direct current between electrodes of a metal (such as Al or Fe) which in ionic form in the effluent is hydrated to an insoluble hydroxide, whereby the metal ions formed in the effluent are hydrated to the insoluble hydroxide and the hydroxide then reacts with the phosphorus material to precipitate a metal phosphate complex. Prior to the electrolysis, a salt such as NaCl may be added to the effluent to increase its conductivity. A cell may be used having interleaved Al electrodes.
Patent GB-1256815-A (GB)
IPC: B24B49/16
Filed: 1970-02-25
Abstract: 1,256,815. Grinding. RIV-SKF OFFICINE DI VILLAR PEROSA S.p.A. 25 Feb., 1970 [4 March, 1969], No. 9019/70. Heading B3D. A speed control device for a grinding wheel advancing mechanism 14 allowing at least two speeds of advance in a grinding machine having a hydrostatically supported workpiece spindle 2 comprises detector means 9 responsive to fluid pressure variations in the hydrostatic bearing fluid, and means 10-13 for changing the advancing speed according to the detector output. The detector 9 consists of a differential manometer responsive to the relative pressure changes in fluid bearing pads 6a, 6b when the grinding wheel 1 strikes a workpiece. An electric signal output from the detector 9, amplified by a unit 10 controls a trigger 11 of adjustable threshold, which, through a power amplifier 12, controls an activator 13 for switching the speed of the mechanism 14 e.g. from initial advance to infeed. The detector output 9 may be produced by a strain gauge or a differential transformer, or in alternative arrangements the detector 9 may have a fluid pressure output signal.
Patent GB-1289404-A (GB)
IPC: H01J31/12
Filed: 1970-11-13
Abstract: 1289404 CRT display arrangement INTERNATIONAL BUSINESS MACHINES CORP 13 Nov 1970 [4 Dec 1969] 54008/70 Headings H4F and H4T [Also in Division H1] A display device capable of displaying both dynamic and static data in interactive graphics comprises a CRT 30 which may selectively generate a visible image or an ultraviolet image, these images being directed on to an image storage display panel 10 which stores the ultraviolet image only. This stored static image may later be visibly displayed superimposed upon the visible (dynamic) image. The CRT faceplate is first coated with a layer 34 of ultraviolet-emitting phosphor and then a layer 36 of visible-emitting phosphor. In dependence upon whether a large or lower electron beam accelerating voltage (switch 41) is applied to the anode 27 (transparent aluminium film) an ultraviolet or visible image respectively is emitted when the electron beam is scanned across the phosphor layers. These images are directed 48 on to the panel 10 which comprises, Fig. 1, a glass substrate 12 having interdigitated electrodes 14, electroluminescent layer 16 and photoconductive layer 18. The panel is translucent to the visible images but an ultraviolet image is stored in the photoconductive layer and only emitted as a visible image when electrodes 14 are excited with A.C. voltage from source 24. To erase the stored image a negative voltage is applied to wires 19 momentarily which negatively charges layer 18 by corona emission therefrom. A shadow-mask type CRT may be used having two sets of phosphor dots, one set emitting ultraviolet light and the other set emitting visible light such as green, two electron guns being employed.
Patent GB-1294814-A (GB)
IPC: C22C21/02
Filed: 1971-04-19
Abstract: 1294814 Al-Si alloys GIULINI GmbH GEB 19 April 1971 [10 Feb 1970] 21440/71 Heading C7D Anhydrous phosphorous pentachloride is added to a melt of Al-Si alloy in hermetically sealed containers which release PCl 5  into the melt, which is then moulded and solidified. The containers may be made at least partly from Al, an alloy thereof, glass or a plastic. A vacuum may be formed within the container. The alloy may be entectic, near-entectic or hyperentectic.
Patent GB-1295584-A (GB)
IPC: C08G75/12
Filed: 1971-04-19
Abstract: 1295584 Polyetherthioethers INVENTA AG FUR FORSCHUNG & PATENTVERWERTUNG 19 April 1971 [14 April 1970] 9860/71 Heading C3R Polyetherthioethers are obtained by condensing a di-alkali metal salt of monothiohydroquinone with at least one aromatic dihalogen compound in which the halogen atoms are separated by at least three carbon atoms, at an elevated temperature in the absence of oxygen in a polar aprotic solvent. The polymer contains units in which the aromatic radicals derived from the dihalogen compound are randomly linked to one sulphur atom and one oxygen atom, to two sulphur atoms and to two oxygen atoms, the polymer being amorphous and soluble in organic solvents. In examples polymers are obtained by condensing the disodium salt of monothiohydroquinone with 4,4<SP>1</SP>-dichlorodiphenylsulphone, with 4,4<SP>1</SP>-bis- (4-chlorophenylsulphonyl)-biphenyl, with a mixture of these two compounds and with a mixture of 4,4<SP>1</SP>-dichlorobenzophenone and 4,4<SP>1</SP>-dichloroisophthalophenone. Other dihalogen compounds are mentioned. Uses.-Heat-resistant moulded articles, films, sheets and tubes, for electrical insulation, for lacquering wire and for impregnating and backing paper and textile fabrics.
Patent GB-1310858-A (GB)
Title: Package for elongated elements
IPC: B65D85/24
Filed: 1972-03-03
Abstract: 1310858 Packages TORRINGTON CO 3 March 1972 10090/72 Headings B8C and B8P A package for small-diameter elongated parts, such as needles, comprises a container 11 grooved at 16 to receive the parts 17 which are retained by a lid 12 slidable in grooves 18. The lid is snapped into position by downward pressure and has a foam plastics under-layer 23 to engage and hold the parts 17. The packages are nestable.
Patent GB-1317765-A (GB)
Title: Interval velocity determination
IPC: G01V1/30
Filed: 1970-08-04
Abstract: 1317765 Processing seismic data MOBIL OIL CORP 4 Aug 1970 37594/70 Heading H4D A method of computing the internal velocities of reflecting zones from common depth point seismic data comprises using the time dip of the Nth reflection to specify the ray path in the zones thereabove, determining the ray path in in the Nth zone to determine the dip of the Nth reflecting zone, computing arrival times of reflected energy at spaced receivers for a plurality of assumed values of interval velocity, comprising with the actual arrival time from said seismic data, choosing the value of interval velocity giving the least error and iterating the process for successive zones. The average velocity of seismic waves travelling paths to a number of reflecting interfaces and the dip of the interfaces is determined by assuming values of velocity and dip and plotting the zero-lag crosscorrelation function for every trace (Fig. 7, not shown). Peaks in these plots indicate the average velocity Va and dip #. By plotting the maxima in the curves the zero offset time T 0  of each interface may also be found. Using this information a computer is used to generate a layered model of the subsurface. Using the average velocity in the first layer and the dip of the first interface and assuming a plurality of valves of the interval velocity in the second layer the corresponding depth and dip of the second interface can be calculated using Snell's Law or the Eikonal equations. This enables a series of curves to be computed representing arrival times at points along the line of investigation which is compared to the field data. The curve giving minimum error indicates the average velocity in the second layer. The error is checked for magnitude and if above a predefined threshold the layer is ignored. If the error criterion is satisfied and the velocity is above a predefined minimum the values of V N  and # are stored and used to calculate the values for the next layer.