baber/WOPTO huggingface dataset:
Patent GB-1486296-A (GB)
Title: Alkylation process
IPC: C07C67/00
Filed: 1974-11-28
Abstract: 1486296 Alkylating aromatic hydrocarbons LUMMUS CO 28 Nov 1974 [12 Dec 1973] 51681/74 Heading C5E A process for alkylating an aromatic hydrocarbon (e.g. benzene) by contact with an olefinic gas (e.g. ethylene) in an alkylation zone in the presence of a metal chloride alkylation catalyst (e.g. AlCl 3 ) and, as a promoter, hydrogen chloride or a substance which releases hydrogen chloride, wherein a gaseous effluent, containing hydrogen chloride, and a liquid effluent containing alkylated aromatic hydrocarbon, unreacted aromatic hydrocarbon and dissolved hydrogen chloride are withdrawn from the alkylation reaction zone, comprises the following steps: (a) flashing the liquid effluent to reduce the hydrogen chloride content thereof and produce a flash gas, containing hydrogen chloride, alkylated aromatic hydrocarbon and unreacted aromatic hydrocarbon; (b) cooling the flash gas to condense alkylated aromatic hydrocarbon and a major portion of the aromatic hydrocarbon and produce a remaining flash gas; (c) directly contacting the remaining flash gas and the gaseous effluent from the alkylation zone with aromatic hydrocarbon to be used as fresh feed to the alkylation zone to absorb hydrogen chloride; and (d) introducing into the alkylation zone aromatic hydrocarbon containing hydrogen chloride absorbed from the gaseous effluent and the remaining flash gas. The flash gas and the gaseous effluent may be contacted with aromatic hydrocarbon in separate absorption zones at 20-150 C. and 5- 150 p.s.i.g.
Patent GB-1388169-A (GB)
Title: Electron accelerator with control yoke
IPC: G21K1/08
Filed: 1972-11-09
Abstract: 1388169 Electron beam irradiation apparatus FORD MOTOR CO Ltd 9 Nov 1972 [15 Nov 1971] 51719/72 Heading H1D An electron accelerator for irradiating a target with an electron beam includes a vacuum chamber having rectangular electron permeable window 30, cathode 34, scanning means 36, 38, and control yoke 40 adjacent the window for deflecting the electron beam from divergent paths between the scanning means and control yoke into parallel paths 48, the yoke comprising first and second bars (50) (52) of magnetic material extending parallel to and on opposite sides of the window (also Figs. 4 and 7, not shown); with coils (58), (60) wound helically on each bar, the flux density varying along the window length to produce the parallel beams. Bars (50), (52), (e.g. of Fe), and coils (58), (60) are preferably rectangular cross-section, and spacers (54), (56) are non magnetic. The coils may be series connected and formed from one strand of wire or may be in parallel-series, and may be grouped or separately excited. Coil spacing may be uniform or non-uniform. Fig. 7 (not shown), illustrates a yoke to bend the beam in one angular direction only such as when the beam is to be unaffected for part of its scan and may be used with a curved or other complex shaped target. The yoke includes four bars (68), (70), (72), (74) and low reluctance connecting members (80), (82), (84). Coils (86) may be series or otherwise connected. Fig. 8 (not shown), has coils A, B, C each of progressively less turns, the flux being as in Fig. 9 (not shown). Figs. 4 to 6 (not shown) indicate other flux details. Envelope 14 is rectangular cross-section with ribs 16, while ribs 26 support Al window 30. Chamber parts are non-magnetic, e.g. stainless steel.
Patent GB-1442019-A (GB)
Title: Tricyclodecyl butanol
IPC: C07C47/115
Filed: 1974-11-29
Abstract: 1442019 Tricyclodecyl butanol HARRMANN & REIMER GmbH 29 Nov 1974 [30 Nov 1973 22 June 1974] 51784/74 Heading C2C [Also in Division A5] The invention comprises 4-(tricylo[5,2,1,0<SP>2,6</SP>] decyl-8)-butanol. The compound is prepared by (a) reacting tricyclo[5,2,1,0<SP>2,6</SP>]decanone-8 with 1-methoxy-buten-1-ine-3 in the presence of a basic catalyst to form 1-methoxy-4 (8- hydroxytricyclo[5,2,1,0<SP>2,6</SP>]decyl - 8) - buten- 1-ine-3, (b) selectively hydrogenating the triple bond of the product to a double bond, (c) subjecting the product of step (b) to ether splitting in the presence of an acid catalyst to result in dehydration thus forming 4-(tricyclo[5,2,1,0<SP>2,6</SP>] decylidene - 8) - buten - 2 - al - 1 and (d) hydrogenating the double bonds of the product of step (c) to form 4-(tricyclo[5,2,1,0<SP>2,6</SP>]decyl-8)- butanol.
Patent GB-1422956-A (GB)
Title: Optical guides
IPC: G02B6/44
Filed: 1972-11-10
Abstract: 1422956 Optical waveguides BICC Ltd 9 Nov 1973 [10 Nov 1972] 52096/72 Heading G2J The optical guide shown comprises a central steel core covered with polyethylene surrounded by a stranded layer of conductors 7 and fibre bundles 4. Each conductor is of copper covered with polyethelene whilst each bundle is also covered with polyethylene. The whole assembly of core, bundles and conductors is encapsulated in black polyethylene which may be covered with a nylon sheathing. The assembly may comprise more than one stranded layer and non-optical glass fibres as well as carbon fibres. The interstices between the fibres of each bundle 4 may be filled with polyester resin.
Patent GB-1135189-A (GB)
Title: The outdoor high voltage insulator
IPC: H01B17/42
Filed: 1965-12-10
Abstract: 1,135,189. Insulators. POLITECHNIKA WROCLAWSKA. 10 Dec., 1965 [10 Dec., 1964], No. 52545/65. Heading H2C. A number of sheds 4 are integrally secured to a trunk portion, each having sharp edged concentric steps 1, a sharp edged rib 2 being provided on the trunk between the sheds.
Patent GB-1213145-A (GB)
Title: Apparatus for the detection of flaws in a transparent material
IPC: G01N21/89
Filed: 1967-11-24
Abstract: 1,213,145. Photo-electric detection of flaws.  Soc. GENERALE D'OPTIQUE. Nov. 24, 1967 [Nov. 29, 1966], No.53630/67. Heading G1A. Flaws in or on a transparent sheet are detected by passing a beam back and forth through the sheet at points spaced across its width by successive reflections between at least one reflecting surface or either side of the sheet, and photo-electrically detecting light scattered by a flaw. The whole sheet which may be plane or cylindrical is scanned by either moving the sheet or the detection apparatus. In one embodiment, Fig. 1a, a beam from a source 5 is directed at a protruding end 2a of a mirror 2 and thereafter repeatedly passes through the moving sheet 1 by reflection off mirrors 2, 3 and 4. A single detector with a wide field of view or several detectors with narrow fields of view are positioned above the sheet to receive light scattered from a flaw. In another embodiment the beam is reflected between only two mirrors and a second beam is reflected between a second pair of mirrors, Fig. 2 (not shown). Prisms instead of mirrors may reflect the light.
Patent GB-1276632-A (GB)
Title: Improvements in or relating to distance protective arrangement for electrical networks
IPC: H02H7/26
Filed: 1970-11-11
Abstract: 1276632 Protective arrangements SPRECHER & SCHUH AG 11 Nov 1970 [25 Nov 1969] 53691/76 Heading H2K In a network in which protection is provided by multi-zone distance relay arrangements, each being operative in first, second, third and "backup" zones with progressively increasing time delays, incorrect operation due to an increase in transmission load is prevented by switching means 22 ... 24 which normally "block" the third and "backup" stages of each relay arrangement, the switching means being operated to "unblock" these stages when a central computer 19 connected to various points of the network has calculated the existence of a fault within the reach of the relay arrangement. Each relay arrangement comprises current and voltage transformers 2, 1 connected to a replica impedance 5, 6 and a resistor 7 to provide an output to a directional relay element 16. An under impedance relay 4 is also connected to the transformers and when operated energizes relays 14, 18, 25; 26 which operate with the appropriate time delays to select in sequence the zone of operation for the arrangement. A relay 22 at contacts 23 complete the circuit for the third zone relay 25 only in response to a signal from the computer 19. This relay also closes contacts 24 in series with the contacts 27 of the relay 26 so that on expiration of time delay of the relay 26 a tripping circuit is directly completed by the contacts 24, 27, the back-up protection provided by the relays 4, 26 being non- directional.
Patent GB-1404153-A (GB)
Title: Aircraft wings
IPC: B64C9/14
Filed: 1972-11-22
Abstract: 1404153 Aircraft wing MITSUBISHI JUKOGYO KK 22 Nov 1972 [24 Nov 1971] 54098/72 Heading B7G [Also in Division F2] An aircraft wing 1 is provided with a spoiler 2 located in a slot 4 through the wing and mounted at 5 for upward pivoting, and means located in the slot for causing vortices 10 in air flowing from the underside of the wing through the slot when the spoiler 2 is raised. Such means may be a sawtooth edged plate 7 or a plurality of rods (8), Figs. 9-12 (not shown), and may be located on the trailing edge of the spoiler 2 or on the wing 1 to the rear of the slot 4, Figs. 13, 14 (not shown). The wing has a trailing edge flap 3, and the effect of the vortexproducing means is to delay boundary-layer separation when the flap is deployed.
Patent GB-1454528-A (GB)
Title: Window guide
IPC: B60J10/17
Filed: 1973-11-22
Abstract: 1454528 Vehicle window guide DRAFTEX GmbH 22 Nov 1973 [2 Dec 1972] 54157/73 Heading E1J A guide for a vehicle window pane comprises an elongate holding member 2 with a substantially U-section with shoulders 5 and an elongate resilient member 3 which has ledges 4 in contact with the shoulders 5. The pane 9 contacts the base 11 and the lips 12 which have a surface coating 10 e.g. of PTFE to reduce friction. The resilient member may contain a metallic reinforcement 8. The space 6 between the base of the resilient member and the bottom of the holding member can be varied to accommodate the pane to supports of differing depth.
Patent GB-1379149-A (GB)
Title: Photographic apparatus
IPC: G03B17/02
Filed: 1972-11-29
Abstract: 1379149 Cameras and film units POLAROID CORP 29 Nov 1972 [29 Dec 1971] 55180/72 Heading G2A In a camera for use with a cassette containing a number of film units, the cassette is releasably retained in a predetermined location within the camera, which has drive means to remove film units from the cassette, and control means which actuates the drive means automatically when the cassette is positioned in the said location. The camera is generally of the folding automatic single lens reflex type disclosed in Specifications 1306318 and 1351425. When the cassette 32 is correctly loaded into the camera, a switch (S6), Fig. 5, (not shown), is closed. The cassette is loaded through a door 510 which is then pivoted from its open position Fig. 15 (not shown), to its closed and latched position Fig. 14 (not shown) in which a further switch (S7) is closed. Closure of these two switches automatically starts a control system to remove and eject the dark slide which initially covers the stack of film units in the cassette. The first switch (S6) operates in conjunction with a counter mechanism which indicates the number of exposures available, as well as indicating the absence of a cassette. After automatic ejection of the dark slide the next photographic operation, i.e. exposure, processing and ejection of the uppermost film unit, has to be manually initiated, by actuation of button 144.
Patent GB-1362176-A (GB)
Title: Ignition switches
IPC: H01H27/06
Filed: 1970-11-21
Abstract: 1362176 Inert switches; cam-operated switches; retractive switches JOSEPH LUCAS (INDUSTRIES) Ltd 11 Nov 1971 [21 Nov 1970] 55499/70 Heading H1N An ignition switch comprises a rotor 13 rotatable from a stable first position (accessories) to a stable second position (ignition) and an unstable third position (start) from which it is resiliently urged back (by spring 26) to the second position, and a first bridging member 19 rotatable with rotor 13 and completing a circuit between a fixed contact 21 (battery) and a fixed contact 24 (starter motor) in the third position, member 19 being resiliently urged (by spring 35) against an arcuate cam track 27. Cam track 27 is such that if rotor 13 is moved from the second position to the third position unless the preceding movement was from the first to the second position, bridging member 19 is moved by cam track 27 in such a direction that in the third position the circuit between contacts 21 and 24 is not completed. As shown, a second bridging member 16 bridges contact 21 and contact 22 (accessories), Fig. 2 (not shown), in the first position and contact 23 (ignition) in the second and third positions, the circuit between contacts 21 and 24 in the third position being through members 16 and 19 which are in engagement when rotor 13 is moved from the first to the second and third positions but not in engagement when rotor 13 is moved from the second to the third position without the preceding movement having been from the first to the second position. The cam track 27 is shown in Fig. 3. In the first position the end of member 19 is adjacent wall 12a, when moved to the second position it moves to wall 32a and when moved to the third position it moves to wall 32b. When moved by spring 26 back to the second position it moves up ramp 33 on to surface 29a, and member 19 is pivoted by the track away from member 16. If then the rotor is moved to the third position the end of member 19 runs along surface 31 to surface 29b so that member 19 is maintained away from member 16. If, from the second position the rotor is moved to the first position, the end of member 19 runs from surface 29a over the edge of wall 32 back to its original position so that member 19 re-engages member 16 and the cycle can be commenced again. A stable "off" position is also provided (not shown). In the second embodiment, Figs. 4, 5 (not shown) the cam track tilts the first bridging member 48 away from the starter motor contact 54 when its end runs up ramp 33 instead of breaking contact between the first and second bridging members, also a spring-loaded ball and recess detent arrangement is provided for the stable rotor positions. In both embodiments, the rotor is turned by a lock (not shown) operated by an ignition key. Both embodiments are provided with a locking position for preventing movement of the gear selector shaft, Fig. 4 (not shown), by a ball 45, engaging a recess 46 in gear selector shaft 44.
Patent GB-1386370-A (GB)
Title: Control system for an automotive automatic power transmission
IPC: F16H59/68
Filed: 1972-12-05
Abstract: 1386370 Change-speed control NISSAN MOTOR CO Ltd 5 Dec 1972 [8 Dec 1971] 56104/72 Heading F2D The level of line pressure in a torque-converter-driven automatic automotive transmission, having fluid-pressure engaged ratioselecting clutches and brakes, is controlled by a main pressure-regulating valve 60 subject to line pressure 80 from an input-driven pump 36 and acting rightwards on a differential area land 88, and to leftward pressure by a spring, and fluid pressure acting on an amplifier piston 106, supplied through a line 122 fed with pump pressure 66 through a restrictor and controlled by regulating an exhaust passage from a jet nozzle 64 by a flap 136, the proximity of which to the nozzle is controlled electronically by an applied voltage which is varied in accordance with the sum of engine torque (manifested by intake depression) and the torque sustained by the reactor of the driving torque converter. Converter reactor torque is sensed either by piezo-electric elements, or, as in Fig. 9, not shown, by resistance strain gauges adhered to the inside surface of the stationary sleeve which supports the reactor on its one-way brake, the gauges lying at right angles in the tension and compression planes at 45 degrees to the torsion shear plane. The resistances are compared in a bridge circuit (Fig. 10, not shown), the output voltage of which is proportional to the reactor torque and is fed to a summing circuit (not described) receiving also the engine torque voltage. The pivotally mounted exhaust-controlling flap 136 is maintained in a flux path, between yokes (134, Fig. 14, not shown) of semicircular magnets (132), by springs which set a predetermined maximum clearance between the flap 136 and the exhausting nozzle 64, this clearance being proportionately reduced, to increase the pressure in the regulator loading line 122, by torque-responsive the voltage fed to a magnet winding 130 by the summing circuit. Reverse pressure augmentation is provided by a line 120, leading from the reverse port of the manual selector valve (not shown).
Patent GB-1211220-A (GB)
Title: 21-aldehydes of the pregnane series and derivatives thereof and process for their manufacture
IPC: C07J7/00
Filed: 1967-12-11
Abstract: 1,211,220. Steroid 21-aldehydes and derivatives thereof. CIBA Ltd. 11 Dec., 1967 [9 Dec., 1966], No. 56126/67. Heading C2U. Novel steroids of the formula  (wherein R 1  is H or F; R 2  is an esterified OH group; and R 3  and R 4  together are oxo or individually are free, esterified or etherified OH groups) are prepared by oxidation of the corresponding 21-ols, e.g. with reducible metal salts or with O 2  in the presence of such salts in catalytic amounts. The 21-als may be isolated, for example, as their methyl hemiacetals. Other preparative methods are also referred to.  #<SP>1,4</SP> - 6α - Fluoro - 9α - R 1  - 16α - methyl- 11#,21 - dihydroxy - 17α - acyloxy - 3,20 - pregnadienes are prepared by converting the corresponding free 17α-ols to 17α,21-cyclic ortho esters and hydrolysing these.  The steroids of the invention, which are stated to possess anti-inflammatory, thymolytic and anti-leucaemic properties, may be made up into pharmaceutical compositions for enteral, parenteral or local administration with suitable carriers.
Patent GB-1447978-A (GB)
Title: Language learning and translation aids
IPC: G09B19/08
Filed: 1972-12-06
Abstract: 1447978 Educational appliances C A J MORRIS 6 Dec 1973 [6 Dec 1972] 56250/72 Heading G5G A teaching aid to give guidance in the grammar of a language, German as described, where words can have different endings depending on the gender, case or number of a noun comprises two face-to-face discs 1, 2 relatively rotatable about their common axis, disc 1 having an indicator in the form of a projection 3 and a table of word endings, and disc 2 having an array of various grammatical conditions. In use the indicator 3 on disc 1 is brought into registry with one of the items in the array on disc 2, and the appropriate word endings on disc 1 are revealed through labelled windows 9, 10, 11 provided in disc 2. Operating instructions and certain further rules of grammar may be printed on the back of disc 1.
Patent GB-1184510-A (GB)
Title: Turbo-Charged Diesel Engine Piston.
Inventor: SOULE GEORGE ERNEST HENRY
IPC: F02B3/06
Filed: 1968-11-29
Abstract: 1,184,510. Pistons. FORD MOTOR CO. Ltd. 29 Nov., 1968, No. 56676/68. Heading F2T. A piston 10 for a turbo-charged diesel engine has at least its top land 15 coated with synthetic plastics material, e.g. P.T.F.E., to reduce build-up of carbon deposits. The whole of the piston crown may be so coated.
Patent GB-572884-A (GB)
Abstract: 572,884. Thermionic valve circuits. CINEMA-TELEVISION, Ltd., and NUTTALL, T. C. Feb. 15, 1941, No. 2064. [Class 40 (v)] [Also in Group XIX] A circuit arrangement for counting, frequency dividing, measuring short time intervals, or adapted to act as a switch or distributer comprises a closed chain of valves with a coupling which passes direct current from the anode of each to the grid circuits of the remainder of the chain and a further coupling operative at higher frequencies from the anode of each valve to the succeeding valve grid so that only one valve is operative and on the application of an external pulse the succeeding valve is rendered operative. The arrangement may comprise two valves with a common cathode resistance and condenser couplings cross connecting the grids and anodes to give two states of equilibrium which are changed over by the application of external pulses. The high-cathode resistance permits automatic self-adjustment of the grid cathode voltage and ensures that each valve when operative passes substantially the same current. Fig. 8 shows a pair of valves 34, 35 with a common cathode resistance 42 fed with external pulses through an amplifier 33. The output is applied through an amplifier 1 to a chain of valves 10-14 with a common cathode resistance 15, coupling condensers 8 and couplings from each anode to the grids of the remaining valves of the chain through resistances 25, 26, 27, resistances 25, 26 serving as a potential divider and providing the backing-off voltage necessary to produce the required bias. This arrangement provides a counter having a scale of five stage following a scale of two stage, valves 34, 10 being operative and passing current in the zero position. The first received pulse cuts off the current of valve 34, causing valve 35 to pass current and each succeeding pulse interrupts the anode current of the then operative valve and renders the following valve operative. The following even pulses are passed by amplifier 1 successively to render valves 11, 12, 13, 14, 10 operative so that the number of pulses received determines the operative valve in each stage. As shown, indication is by a centre zero meter with associated resistances 19 ... 24 so connected in the high tension supply to the valves as to indicate the operative valves. The use of a centre zero instrument with current passing in both directions and a symmetrical shunt resistance is preferable as errors are cumulative across the scale. A resistance 18 is provided to adjust the absolute value of the current and the meter may be provided with a scale of numbers. In a modification, two meters are associated with a scale of four stage arranged between two scale of five stages and calibrated to read units and tens respectively, Fig. 6. A push-button' 51 is provided to reset the counter to zero by introducing resistance 50 in the negative high-tension supply which renders valves 10 and 34 operative.
Patent GB-1370488-A (GB)
Title: Switching devices
IPC: B41J5/14
Filed: 1971-12-15
Abstract: 1370488 Push button switching devices TELETYPE CORP 15 Dec 1971 [17 Dec 1970] 58209/71 Heading G1N [Also in Division H1] A non contact making push button switch has a fixed capacitor plate and a movable one, the latter being ferromagnetic and biased to one position by a magnet, but being movable by a sufficient depression of the button. Fig.1 shows a switch having two movable plates 24, 26 which are biased against respective fixed plates 20 and 22 by the attractive forces of magnets 14 and 16. Dielectric material separates each pair of plates. When button 40 is pressed a force is transmitted to the ends of the movable plates by springs 46, 50, the spring driving lugs 44, 48 being placed so that plate 26 overcomes its magnetic bias and moves before plate 24 does so, Fig.2 (not shown). Further depression of the button is necessary to move the second plate. A lead 30 is connected to the movable plates, and leads 18, 20 to the fixed plates. An A.C. generator may be connected to a rectifier and trigger via the capacitors formed by the plates in a manner similar to Fig. 4 (not shown) so that when a plate moves there is a change in the trigger circuit output. In Fig. 3 (not shown) the switch uses a single capacitor, the magnet 16 forming one electrode and a movable plate forming the other. In Figs.1-3 (not shown) the magnet functions to maintain the movable capacitor plate in a position where the capacitance is a maximum. In a modification, Figs. 4 and 5 (not shown) the magnet maintains the plates apart so that the capacitance is a minimum and the action of the push button is to increase the capacitance. A cam and follower may be incorporated into the button, Fig. 5 (not shown) to provide a push-to-latch and push-to-release operation.