baber/WOPTO huggingface dataset:
Patent GB-1451617-A (GB)
Title: Process for the preparation of medicinal oils
IPC: B01J21/16
Filed: 1973-12-04
Abstract: 1451617 Medicinal oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 4 Dec 1973 [6 Dec 1972] 56177/73 Heading C5E Medicinal oils are prepared by contacting' e.g. at 200-300‹ C. and 25-200 bar, a hydrocarbon mixture, containing less than 10% by weight aromatics, with hydrogen in the presence of a catalyst containing one or more noble metals of Group VIII on a carrier which contains 13-15% by weight alumina with the balance being silica. The catalyst suitably contains 0À05-5 wt. per cent Pt and has a surface area of 50-500 m.<SP>2</SP>/g. and a pore volume of 0À2-1À2 ml./g. The feed can be an atmospheric or reduced pressure distillate or a raffinate obtained by extracting such a distillate with a selective solvent for aromatics. In the examples a raffinate obtained by extracting a reduced pressure distillate of a naphthenic crude oil with sulphur dioxide or furfural is pretreated by catalytic hydrogenation to reduce its aromatic and sulphur contents prior to use as a feed to the process of the invention. This pretreatment is carried out at 275-375‹C. and 25-200 bar using a sulphidic catalyst containing nickel and/or cobalt together with molybdenum and/or tungsten on alumina and which can be fluorinated before use; the alumina carrier can be prepared by calcining a material containing phosphate and peroxide ions.
Patent GB-1210612-A (GB)
Title: A keyboard signalling system
Inventor: LUCAS PIERRE
IPC: H04Q3/00
Filed: 1968-11-27
Abstract: 1,210,612. Keyboard Circuits. P. LUCAS. 27 Nov., 1968 [8 Dec., 1967], No.56225/68. Heading G4H. [Also in Division H4]  A telephone or data subscriber's keysender comprises logic circuitry which is effective to transmit pulse sequences characteristic of the digit corresponding to a depressed key, each sequence being preceding by an identifying pulse train which is the same for all digits. As shown in Fig. 1, the positive and negative excursions of a sinusoidal or rectangular pulse train provided by generator 240 are applied to respective buses t, t as well as to a frequency dividing chain of flip-flops 243, 244. Operation of a digit key 0-15 closes one each of switches 6 0 -6 3  and a 0 -a 3  and additionally connects the logic 26 to line 21 by closure of switch C. The line connection may be in series or parallel with the loop. The logic is such that irrespective of which key is operated a pulse train as shown in the " identification signal " both in Fig 3 is always transmitted before the digit signalshown in the " characteristic signal " box. Each of these two signals lasts for two cycles of the fundamental pulse train which may have a frequency of, e.g. 500 c.p.s. The two signal detectors 30 are provided in order to allow for line polarity reversals but only one can provide a significant output at a time. Each detector (Fig. 4) includes an oscillator 32 whose frequency is approximately four times that of the oscillator in a keysender, a flip-flop chain 41 for detecting pulse polarity changes in the incoming signal and a sixteen-stage shift register 33 into which successive pairs of signals are fed. Provided a signal pair is identical, i.e. the signals are genuine " digits " and not spurious noise, a significant output corresponding thereto is supplied to a central control unit. It is pointed out that the above described system can tolerate up to 15% frequency drift in the keysender oscillators without any untoward effects.
Patent GB-1420209-A (GB)
Title: Surface active esters of dicarboxylic acids and polyhydroxy tertiary maines
IPC: D06M13/224
Filed: 1972-12-06
Abstract: 1420209 Esters of polyhydroxy amines COLGATE-PALMOLIVE CO 6 Dec 1972 [6 Dee 1971 (4)] 56245/72 Heading C2C [Also in Division C5] Semi-esters and sulphonated semi-esters of dicarboxylic acids and polyhydroxy tertiary amines of formula where R 1  is a C 8-24  alkyl radical, R 2  is a C 1-6  alkyl, cycloalkyl, benzyl, phenethyl, C 2-6  hydroxy alkyl or C 2-6  hydroxy alkoxy alkyl radibal and R 3  is a C 2-6  hydroxyalkyl radical. The compounds may be mono-, di- or triesters or sulphonated mono-, di- or tri-esters, and the disodium sulphosuccinate of N-(2- hydroxyhexadecyl) diethanolamine and of N- (2-hydroxyoctadecyl) methylethanolamine, the sodium phthalate of N-(2-hydroxyhexadecyl)- diethanolamine, N-(2-hydroxyhexadecyl)-diethanolamine maleate and phthalate are amongst compounds listed. The products are used in detergent compositions and as fabric softeners.
Patent GB-1446349-A (GB)
Title: Sweeping and vacuum cleaning assemblies for powered street-  sweepers
IPC: E01H1/08
Filed: 1973-12-05
Abstract: 1446349 Suction sweepers LE MATERIEL DE VOIRIE 5 Dec 1973 [4 Jan 1973] 56436/73 Heading E1G A powered street sweeper is adjustably suspended from a vehicle by varying the air pressure in a pneumatic piston and cylinder 12, between the casing 10 for the brushes and the vehicle, and the casing supports a suction nozzle 3 by means 5-9 allowing vertical adjustment of the nozzle relative to the casing, so that movement of the brushes into contact with the road also correctly positions the nozzle said means including a double acting piston and cylinder 8, a pivoted bell crank lever 9, a fixed member 6 and slideway 5. The nozzle is connected to a suction fan by means of a flexible hose 4.
Patent GB-1285901-A (GB)
Title: Heating apparatus of the kind having a steam generating electrically heated heat storer and a steam utilisation circuit
IPC: F24D11/00
Filed: 1969-11-19
Abstract: 1285901 Closed circuit heating systems G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 19 Nov 1969 [19 Nov 1968] 56567/69 Heading F4U A heat exchanger 6 is heated by, and condenses, steam generated in a thermal storage heater 1. Condensate is returned to the storage heater by a system which includes a back pressure pipe 19 discharging to a condensate tank 9 to relieve any excess pressure occurring in the heat exchanger or the storage heater. The tank 9 is open topped and is downstream of a self regulating accumulator which governs the condensate level in the heat exchanger 6. The heat exchange heats the feed and return lines 24 and 25 of a central heating system, and the temperature of the feed line is used to regulate a condensate return valve 12. A further return valve 15 is open only for periods allowed by a timer 28 and is by-passed by a fixed but interchangeable throttle 17.
Patent GB-1161628-A (GB)
Title: Machine for Making Photo-Resist Images
IPC: G03F7/16
Filed: 1967-12-13
Abstract: 1,161,628. Printing photo-resist images. E. I. DU PONT DE NEMOURS & CO. Dec. 13, 1967 [Dec. 16, 1966], No. 56714/67. Heading G2A. Photo-resist images, such as are used in the manufacture of printed circuits, are made by a continuous process, the photo-sensitive material being coated on to the resist sheet from a flexible support (which is subsequently stripped away), the resulting laminate then being conveyed to an exposure unit. As shown, circuit boards 1 are conveyed singly by a pawl 3 and rod 4 to a pair of rollers 7. Webs of photo-sensitive material are fed from supply spools 8 to take-up spools 13, a protective covering layer being stripped off as the webs leave spool 8 and taken up on mandrels 10. As the webs pass between rollers 7 they are laminated by heat and pressure to both sides of the board 1. Rollers 11 and 11a now pass the board on to the exposure unit, where two imagebearing transparencies 21 are carried on transparent pressure plates 20. These are mounted on frames 14 and 15 which each form part of a lighting unit including a carbon arc 23 and reflector 24. The frames are pressed together, in order to make the exposure, by energizing solenoids 19. The webs of photo-sensitive material are themselves carried on a temporary support web, and after they are laminated to the board the support webs may be stripped off, either before the exposure unit is reached (i. e. on to take-up reels 13) or afterwards (take-up spools 28). After exposure, the boards are fed into a developing unit Fig.4 (not shown), where they pass between nozzles which spray them with a solvent which removes the soluble material, leaving the resist image. They are then dried by blasts of air, and pass on to a receiving bin. An etching step may be introduced after the developing unit. The exposure unit may be modified so that exposure takes place continuously. Fig. 3 (not shown) is an electrical control arrangement for carrying out the sequence of operations automatically.
Patent GB-1445351-A (GB)
Title: Superconductor magnet systems
IPC: H01F6/00
Filed: 1973-12-10
Abstract: 1445351 Electric protective systems SIEMENS AG 10 Dec 1973 [8 Dec 1972] 57219/73 Heading H2K A superconductor magnet system comprising a plurality of superconductor coils 2, 3, 4 connected in series and provided with suitable impact means 9 for connecting the series of coils across a current supply 5 is provided with respective resistive devices, 10 in parallel with each coil to receive current during de-energization and with respective coil voltage monitoring devices 15, 16, 17 arranged to control the switching input means 9 to discontinue the supdly when the voltage across a coil 2, 3, or 4 rises as it will if the coil changes from its superconductive state. Further switches 6, 7 between the coils 2, 3, 4 are also switched when the monitoring devices operate. Earthing switches 14 may also be closed on operation of the monitoring devices 15, 16, 17 and may be connected to the centre of the coils as shown or to one end of each coil. The resistive devices 10 may be formed of relatively low and high resistor 11, 12 in parallel with a switch 13 in the low resistance arm and controlled by the monitoring devices 15, 16, 17 to be opened to reduce the de-energization time. A programme control unit 24 is arranged to receive a control pulse from any operative monitoring device 15, 16 or 17 and control the other devices 15, 16, or 16. A series rectifier switch circuit 22, 23 may be closed when the switch means 9 is closed to provide slow de-energization of the magnet.
Patent GB-1151530-A (GB)
Title: Improvements in or relating to Fluid Level Sensors
Inventor: JOHNSON JAMES STEWART
IPC: G01F23/26
Filed: 1966-12-22
Abstract: 1,151,530. Liquid level indication. ROSEMOUNT ENG. CO. Ltd. 1 Nov., 1967 [22 Dec., 1966], No. 57506/66. Heading G4H. A fluid level indicating device comprises a plurality of discrete level sensing devices each adapted to provide one of two output signals according to whether the fluid level is above or below the device, there being further means between each two devices giving an output analogue signal varying directly with the fluid level between the two devices. The sensing devices are capacitive and formed by rings assembled in a pack surrounding a central conducting cylinder as described in Specifications 1,110,175 and 1,149,500. The central member 100 is energized by an oscillator 101 which is controlled by the signal from the bottom electrode 11 so as to keep the capacitative current at a predetermined level. The current from electrode 11 also passes via diodes 53, 54 to resistor 51 shunted by capacitor 55. Above the electrode 11 are a group of electrodes 12-19 connected in parallel via diode 54 to the resistor 51 which develops a direct voltage proportional to the height of the fluid above the bottom of electrode 11. The group of electrodes 21-29 are also connected to resistor via diode 56 which is reversed with respect to diode 54 so that the current from this group is subtracted. As the level rises in this group the output voltage therefore falls The next higher group 31-39 is connected in the positive sense and the highest group 41-48 in the negative sense so that the voltage rises and falls as the fluid level rises as shown in Fig. 1B. The electrodes 20, 30, 40 are connected to subtraction circuits 60, 61, as described in Specification 1,149,500, to obtain outputs when the level is between the two pairs 20, 30 and 30, 40. These electrodes may be replaced by float switches. The analogue signal across resistor 51 may be applied to a meter through reversing switches which cause it always to read in the correct sense returning to zero at the beginning of each group. Alternatively, the signal may be digitized. In another modification, the electrodes 20, 30, 40 are grouped to provide an analogue signal which is digitized to obtain the signal indicating the level range. Such an analogue signal could be derived from a vertically disposed wire, the resistance of which is responsive to the cooling effect of the fluid.
Patent GB-575977-A (GB)
Abstract: 575,977. Frying-ranges. RAMSEY, A. R. J. (Saviskas, B. J.). April 24, 1944, No. 7571. [Class 126] A frying range comprises a number of side-byside units each consisting of a cooking pan 38 heated by gas burners 62 and supported by flanges 40 on the stove framing, the pan being formed with an inclined rear wall 44 disposed directly beneath an open-bottomed food-warming compartment 74 so as to receive fat draining from the food therein. This compartment is fitted with a food support comprising a grill 92 housed within a tray 84 formed with a spout 88 which directs the collected fat on to the wall 44. The front part of the pan is covered by a sliding door 56, a stop 58 being provided to prevent complete cutting off of the compartment 74 from the pan; the front wall 82 of the compartment 74 serves by engagement with a lip 98 on the door 56 to prevent complete closing of the pan thus ensuring that there is always an air inlet 100 to provide a through draught during cooking. Outlets. 70, 80 leading to a flue pipe 72. are provided in the heating chamber 12 below the pan and in the rear wall of the compartment 74. The bottom of the heating chamber is closed by an apertured plate 24 supported by deformable Z-shaped metal clips 26. which, in the event of explosion or back-fire permit the plate to yield and so prevent injury to the pan. The gas manifold 60 is housed in a casing arranged below an apron 46 which extends along the front and sides of the stove and is formed with a depressed guideway 48 for receiving food holders.
Patent GB-1450395-A (GB)
Title: Filters for liquids
IPC: B01D27/08
Filed: 1972-12-14
Abstract: 1450395 Oil filters GENERAL MOTORS Ltd 13 Dec 1973 [14 Dec 1972] 57659/72 Heading BID An oil filter comprises an annular pleated resin impregnated paper filter element 2 having at one end a seal member 30 which engages casing 1 and at the other end, an annular member 23, and a spring 36 which, when the filter is not in use, urges the filter element 2 upwards so that face 24 and flange 26 of member 23 engage cover 3. In use, the oil enters through openings 10, forces flange 26 downwards and flows inwardly through the filter element 2 to outlet 4. If the pressure drop across the filter element 2 increases e.g. due to the use of viscous oil or clogging of the element 2, the member 23 and filter element 2 are forced downwardly against the spring 36 to open up a bypass passage between the member 23 and neck 5. The filter may have an antidrain tube 39.
Patent GB-1343919-A (GB)
Title: Tetrahydro diazepinones their preparation and their therapeutic use
IPC: C07C59/90
Filed: 1971-12-15
Abstract: 1343919 7-Substituted 2,3,5,6-tetrahydro- 4H-1,2-diazepin-3-ones SYNTHELABO SA 15 Dec 1971 [16 Dec 1970] 58274/71 Heading C2C The invention comprises the title compounds, wherein the 7-substituent (Ar) is a carbocyclic or heterocyclic group, and a process for making them by reacting with a 4-ArCO-butanoic acid, hydrazine which may be substituted depending on the substituent desired in the 2- position of the product. Therapeutic compositions having psychotropic activity comprise the title compounds, which may be administered orally, rectally or parenterally.
Patent GB-583802-A (GB)
Abstract: 583,802. Cables. RADIO CORPORATION N OF AMERICA. May 5, 1943, No. 7101. Convention date, May 29, 1942. [Class 36] [Also in Group XXVII] In an ultra high frequency ignition system, potentials from a voltage divider 2 are applied to the electrodes of an ultra HF oscillator valve 3 which includes a circuit comprising a section of co-axial cable 4 of such dimensions as to provide resonance. Pulsing of the oscillations is effected by an engine-driven commutator 5 and the output is applied to a distributor 6. Low impedance transmission lines 8 of co-axial cable are connected to sparkplugs 9 each having an electrode 11 of length equivalent to a quarter wave length of the oscillations or an odd multiple of a quarter wave length. In a modification, Fig. 2, the transmission lines include an inner conductor 52 connected to the plug electrode and an outer sheath 51 having louvres 53 through which moisture from within the sheath is withdrawn by air movement. Specification 583,832, [Group XXVII], is referred to.
Patent GB-1223346-A (GB)
Title: Horizontal and vertical deflection output circuit arrangement for cathode ray tube
IPC: H04N3/233
Filed: 1968-12-18
Abstract: 1,223,346. Cathode-ray tube circuits. SONY CORP. 18 Dec., 1968 [18 Dec., 1967], No. 60270/68. Heading H4T. The output stages of the horizontal and vertical beflection circuits for a cathode-ray tube are supplied with unsmoothed D.C. operating voltages by means of a circuit which suppresses the ripple component and simultaneously produces a raster distortion correction signal which is a function of the (sawtooth current) output of the vertical deflection circuit and is superimposed on the ripple suppressed D.C. voltage supplied to the horizontal deflection circuit. As shown in Fig. 1, unsmoothed D.C. voltage from a source 3 is fed to the horizontal and vertical deflection circuits 1, 2 respectively through a circuit 4 (termed a "multipurpose circuit") which includes an inductor 21 and capacitor 22 forming a low pass filter with respect to the ripple component in the D.C. input, (i.e. a smoothing circuit) and an integrating circuit with respect to the sawtooth current I V  drawn by the vertical deflection circuit 2. This integration produces a parabolic wave which via transistor 23 is superimposed on the voltage supply to the horizontal deflection circuit 1 the deflection produced by which is therefore corrected for pin cushion distortion. The inductor 21 may be replaced by a resistor (Fig. 3, not shown) and the latter arrangement may be modified by the addition of a further resistor and capacitor producing a two-stage low-pass filter (Fig. 4, not shown). In a further modification of the arrangement of Fig. 1, the transistor 23 is omitted and the D.C. supply to the horizontal and vertical deflection circuits is taken from point 24 (Fig. 5, not shown).
Patent GB-1298233-A (GB)
Title: Process of treating silver halide photographic paper
IPC: G03C5/305
Filed: 1969-12-22
Abstract: 1298233 Photographic process FUJI PHOTO FILM CO Ltd 22 Dec 1969 [26 Dec 1968] 62381/69 Heading G2C Photographic black-and-white silver halide paper is, in order, (a) exposed, (b) developed with an aqueous developing solution containing as a toning agent a compound of formula: R 1 HN-CS-NR 2 R 3  (in which R 1-3  are each H, alkyl, hydroxyalkyl, aryl, aralkyl group in which said alkyl groups contain 1-6 C atoms and at least one is not H), and (c) fixed. The invention also relates to developer solutions for use in the above process.
Patent GB-691757-A (GB)
Abstract: 691,757. Covering wires by winding. BRITISH INSULATED CALLENDERS CABLES, Ltd. Nov. 5, 1951 [Nov. 6, 1950], No. 27100/50. Class 109 A machine for lapping paper strip about an electric conductor in which a number of heads each carrying a number of coils of paper is rotated about an axis along which the conductor is passed, the paper strip from each coil being led to the conductor over a guide, e.g. a roller, is characterised in that all of the guides on each head are provided with a single helical adjusting member which is disposed about the axis of the head and has end pieces by means of which the helix is mounted and its pitch angle can be varied as so to vary the longitudinal position of the guides relative to, the head. Each coil 4 is mounted upon a bracket 3 from which extends a square section rod 15 upon which is slidably mounted each guide roller 5. Each roller mounting has a claw shaped extension 16 which engages the helical member 150. Attached to the ends of the helix are nut pieces 17 which are mounted in screw threaded engagement upon screwed rods 18. Rotation of the rods 18 alters the pitch angle of the helix and so gives relative longitudinal adjustment to the positions of the rollers 5. Each coil 4 is mounted to allow rotational adjustment, each bracket 3 having an extension 13 provided with a slot 140 into which extends a pin 12 from a ring 11, the ring being arranged for rotation by turning a screw 7 which engages a nut 8 upon a lug 10 integral with the ring. The rods 18 are mounted for rotation within a bracket 19 pivoted to an arm 23 carried by the upper square section rod 15. Rotation of the ring 11 rotates each bracket 3 about the axis of a cylindrical extension 27 of the bracket which axis is coincident with the pivot connection 22 between the arm 23 and bracket 19 supporting the helix so that rotation of the ring 1 and subsequent rotation of the coils does not affect the helix 150. The inner surfaces of the brackets 14 supporting the guide rollers 5 are given a radius 30 tangential to the helix 150. The nuts 17 can be put into such a position as to obtain right or left handed helices appropriate for the direction of rotation of the head.
Patent GB-714043-A (GB)
Abstract: 714,043. Explosives. AKT.-GES. VORM. E. VOGEL. Dec. 18, 1952 [Dec. 18, 1951], No. 32136/52. Class 9(2) An explosive comprises a solution in nitric acid of one or more organic substances which are not attacked by nitric acid, wherein the nitric acid has a specific gravity of 1.45-1.515 and has a total content of nitrogen dioxide and nitrogen tetroxide together of 0.5-10 per cent. Suitable organic substances are dinitrobenzene and/or fatty acids such as formic, acetic, or butyric acid or esters thereof and the proportion thereof to the nitric acid should be 1: 1 by weight. Mouldable or pourable mixtures may be formed by adding up to 35 per cent fuller's earth or dynamite kieselguhr. One or more inorganic substances which do not react with nitric acid and which are disintegrated during the explosion, e.g. nitric acid; sulphuric acid, sodium nitrate, ammonium sulphate or aluminium, may be mixed with the solution. The aluminium may be in the form of coarse filings. After the constituents have been mixed by stirring, the explosives may be cast by pouring into sheet iron or aluminium cartridge cases.
Patent GB-2000812-A (GB)
Title: Externally ornamental golden colour part
IPC: C23C28/00
Filed: 1978-06-09
Abstract: An externally ornamental golden color part such as a wrist watch case, band or bezel comprising a thermal resistance substrate and a titanium nitride coating deposited on said substrate and including in a portion of the thickness of said coating at least one member selected from the group comprising Al, Si, V, Cr, Fe, Co, Ni, Cu, Zn, Ge, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Ti, Hf, Ta, W, Ir, Pt and Au.
Patent GB-2001444-A (GB)
Title: Measuring permeability of paper
IPC: G01N15/08
Filed: 1978-06-27
Abstract: An instrument for measuring the air permeability of cigarette paper, comprises a paper-clamping head 13, arranged to expose a fixed area of paper (shown dotted) to a flow of pressurised air from an air pump. A pressure meter 14 is arranged to measure the pressure differential across the paper and the air flow is controllable by a valve 2 to enable a predetermined pressure differential to be maintained. The air flow through the paper is permitted to take place via a selected one only of three flow-meters 10, 11, 12 arranged for measuring the flow rate in a low medium or high flow rate range respectively. The arrangement is such that the flow impedance downstream of the tapping point of the pressure transducer is negligible. <IMAGE>