baber/WOPTO huggingface dataset:
Patent GB-1396107-A (GB)
Title: Preparation of phenols
IPC: C07C37/00
Filed: 1971-10-15
Abstract: 1396107 2,6-Diisopropyl phenol CIBAGEIGY AG 13 Oct 1972 [15 Oct 1971] 48006/71 Heading C2C A process for preparing 2,6-di-isopropyl phenol comprises treating a 2,5-di-isopropyl-4- alkyl phenol of the formula or a 2,6-di-isopropyl-4-alkyl phenol of the formula in which R<SP>1</SP> is hydrogen or alkyl, R<SP>2</SP> and R<SP>3</SP> are alkyl and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> together contain from 2 to 11 carbon atoms, with a sulphonating agent so that a sulphonic acid group is substituted on the molecule at the 4-position and subsequently removing the sulphonic acid group from the molecule by treatment with water. 2,5- and 3,5 - di - isopropyl - 4 - hydroxybenzene sulphonic acids formed intermediately are stated to be novel compounds. Examples are furnished.
Patent GB-1526098-A (GB)
Title: Backpackers device
IPC: A45F3/04
Filed: 1975-11-24
Abstract: 1526098 Backpack supports CAMP TRAILS CO 24 Nov 1975 [25 Nov 1974] 48224/75 Heading A3V [Also in Division A4] A backpack frame structure Fig. I comprises a central leg 14 terminating in a lower foot 16, and two lateral legs 18 one on each side of the leg 14, the legs 18 terminating in lower ends 20 and being connected to the central leg remote from the foot 16 and lower ends 20, and the foot 16 and ends 20 having relative freedom of movement.  As described the frame structure is formed from a single rod or tube of tight metal bent to M-shape, the upper ends of the legs 18 being joined to branches of the leg 14 by portions 24. In use the frame is used in carrying a bag on a person's back. The portions 24 are received in pockets 28, Fig. 4, on the bag and are connected by spacing links 36 to shoulder straps 40. The straps 40 have one end attached to a belt 30 and their other ends are interconnected through a slide loop 54 connected by a strap 52 to the foot 16. The foot 16 is itself received in a pocket in the belt 30 and the ends 20 of legs 18 are loosely connected to the belt. The belt may have a metal reinforcement.
Patent GB-968964-A (GB)
Title: Improvements in or relating to magnetic memories
IPC: G11C7/02
Filed: 1962-12-20
Abstract: 968,964. Magnetic storage devices. SIEMENS & HALSKE A.G. Dec. 20, 1962 [Dec. 22, 1961], No. 48261/62. Heading H3B. To avoid repeated non-destructive read-out of a thin magnetic film having easy and hard directions of magnetization from establishing a zone of reverse magnetization, each read-out pulse is followed by a restoring pulse of opposite polarity. As shown in Fig. 1, a matrix of Permalloy films 2 of about 1000 A thick has associated drive, digit and sense conductors 3, 4 and 5. To read-out, each drive conductor is pulsed in turn, followed by a restoring pulse of opposite polarity before the next drive conductor is pulsed. Alternatively, a complete cycle of read-out pulses is applied to the digit conductors before a cycle of restoring pulses is applied. The easy axes of the films may be inclined to the drive conductor. In a modification each restoring pulse may follow several drive pulses.
Patent GB-1374238-A (GB)
Title: Method of and apparatus for reducing the moisture content in fibrous  sheet material
IPC: H05B6/78
Filed: 1970-10-13
Abstract: 1374238 Microwave heating ROTAX Ltd 29 Sept 1971 [13 Oct 1970 17 Dec 1970] 48495/70 and 59872/70 Heading H5H [Also in Division F4] Fibrous sheet material is engaged with a cylindrical element having a surface of low-loss dielectric material, and microwave energy is directed into the space between the cylindrical element and a further element. In Fig. 5, a paper web 34 is drawn over a sleeve 32 of lowloss dielectric material rotatably supported by air issuing from apertures 33 in a non-rotatable copper cylinder 25. Magnetrons (not shown) are connected by waveguides 30 to excite an "E" mode in the space 29 between the copper cylinder 25 and a removable copper hood 26 (the radial spacing being less than #/2). In a modification, the cylinder 25 is replaced by two concentric semi-cylinders defining a space between them to which air is supplied for discharge through apertures in the copper outer semicylinder to support the sleeve 32. In another embodiment, the web is supported by a low-loss dielectric layer disposed directly on a rotatable imperforate copper cylinder.
Patent GB-1525879-A (GB)
Title: Process for recovery and reuse of ammonia in a liquid ammonia fabric treating system
IPC: D06M101/00
Filed: 1976-11-22
Abstract: From the exhaust gas continuously withdrawn from the treatment chamber (13) and containing NH3 gas, air and water vapour, the NH3 is continuously recovered and returned to the treatment process in a virtually anhydrous liquid form. The drawing illustrates a usable NH3 recovery plant. In the drawing (13) denotes treatment chamber; (27) denotes extraction line; (29) storage vessel for liquid NH3; (32) heat exchanger; (32a) denotes condensate water discharge line; (33) denotes cooling water feed line; (33a) denotes feed line for liquid ammonia; (34) denotes cooling water outlet line; (34a) denotes outlet line for liquid ammonia; (35) denotes outlet line for supercooled gases; (36) denotes saturation vessel; (37) denotes cold, liquid NH3; (38) denotes space for cooled gases; (39) denotes connection line between space (38) and suction side of a compressor (40); (40) denotes compressor; (41) denotes compressor drive motor; (42) denotes high pressure line for compressed gases; (43) denotes tube bundle condenser/heat exchanger; (44) denotes cooling water feed line; (45) denotes cooling water outlet line; (46) denotes high pressure line for liquid NH3; (47) denotes outflow line for uncondensed gases; (46) denotes NH3-cooled separator; (49) denotes condensate line to the saturation vessel (36); (50) denotes expansion valve; (51) denotes outlet line for liquid NH3; (52) denotes saturation vessel output line, leads via pump (53) and control valve (54) into the line (18) leading into the treatment chamber (13) with the treatment trough; (55 and 56) level sensors for controlling valve (57) in line (58) for the feed of liquid NH3 from the storage vessel (29) into the saturation vessel (36). The process enables the water content in the treatment agent to be kept continuously beneath 3%. <IMAGE>
Patent GB-1480087-A (GB)
Title: Development apparatus
IPC: G03G15/09
Filed: 1974-11-12
Abstract: 1480087 Electrostatographic developing XEROX CORP. 12 Nov 1974 [19 Nov 1973] 48871/74 Heading G2H A magnetic brush developing device for reducing developer flow at the ends of the brush comprises flow baffle means 20 in the form of stationary magnetic brushes 21 produced by magnets 22, 23 which may be wedge shaped, as shown, or rectangular. The brushes 21 regulate the flow of developer at the ends of magnetic brush roll 42, which is formed by a rotatable sleeve 44 housing stationary magnets 45, 46. A lifting roll is provided to attract unused particles from roll 42 and return them to sump 40.
Patent GB-1402550-A (GB)
Title: Water feed device for use with plant pots or the like
IPC: A01G27/04
Filed: 1971-10-21
Abstract: 1402550 Watering plants H O W EGGINS 23 Oct 1972 [21 Oct 1971] 48907/71 Heading A1E A device for watering plant pots comprises a central metallic support composed of one or more cores 5, 6 each covered by a capillary material in the form of a flexible sleeve 7, 8: the end 10 being formed to facilitate insertion of the device through a plant pot aperture and the lower part of the device dipping into a water container and being partly covered by a sleeve of impervious material 12 to reduce evaporation from the device. Specification 1110484 is referred to.
Patent GB-982516-A (GB)
Title: Apparatus for controlling liquid feeding systems
IPC: F23K5/02
Filed: 1963-12-11
Abstract: 982,516. Supplying liquid fuel to burners. SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. Dec. 11, 1963 [Jan. 19, 1963], No. 49038/63. Heading F4T. [Also in Division G3] In an apparatus for controlling the supply of fuel oil to burners (not shown) comprising a pump 2 pumping the oil from a main storage tank to an intermediate container 5 having a variable volume, the motor 1 driving the pump is controlled by a toggle switch 18 actuated by the change in volume of the intermediate container 5. The pump delivers the oil through a check valve 4 to the intermediate container and a pressure line 19 conveys the oil from the intermediate container to the burners. The intermediate container may be a cylinder closed by a piston or, as shown, a cup-shaped flexible diaphragm 9 inside a housing 6, 7 containing a piston 10 having a rod 11 extending through an aperture in the bottom of the housing. A plurality of tension springs 13 extend between the bottom of the housing and a disc 12 adjustably secured to the piston-rod 11. The piston carries an arm 15 having adjustable cross-arms 16, 17 adapted to operate the toggle switch 18. When the pump is working the diaphragm pushes the piston downwardly against the action of the tension springs 13 until the crossarm 16 flips the toggle switch 18 to switch off the motor 1. As the oil is consumed the piston rises and the other cross-arm 17 actuates the toggle switch in the opposite direction to switch on the motor. If the volume of oil in the intermediate container falls below a certain value a safety switch 22 in series with the motor switch 18 is opened by a further cross-arm 24 on the arm 15 to stop the pump. The safety switch 22 may also start an acoustic or optical alarm. After the cause of the low oil volume has been removed the apparatus is started by a pushbutton which bridges the safety switch 22. A further cross-arm 23 then closes the safety switch 22. A further safety switch 21 is actuated by a further cross-arm 25 to switch off the apparatus if the maximum volume of oil in the intermediate container is exceeded. The arm 15 and cross-arms may be replaced by a plurality of rods slidable in bores in the bottom of the housing 6, 7 and urged upwardly by springs. Adjustable collars on the rods engage the bottom of the housing. The piston depresses the rods successively and each rod has adjustable crossarms for actuating a toggle switch. In a modification, Fig. 3 (not shown), the tension springs are replaced by a flexible container filled with air and a further piston is provided to compress the air as the oil increases the volume of the intermediate container. An arm on the double piston extends through a slot in the outer casing to operate four switch control rods.
Patent GB-1364115-A (GB)
Title: Rigid halogen containing resin compositions
IPC: C08K3/34
Filed: 1971-10-21
Abstract: 1364115 Halogen-containing resin compositions CINCINNATI MILACRON CHEMICALS Inc 21 Oct 1971 [11 Dec 1970] 49093/71 Heading C3P A halogen-containing resin, e.g. PVC, contains a premixed admixture of a lubricant for the resin and a highly absorptive synthetic silicate powder. The preferred silicate comprises 40-70% SiO 2 , 1-30% CaO, 1-5% Al 2 O 3 , 1-2% Fe 2 O 3 , 0À1-20% MgO, 1-2% (Na 2 O+ K 2 O) and 10-20% volatile matter. Lubricants mentioned are fatty acids and alcohols, esters of polyols or polycarboxylic acids and paraffin, ester or amide waxes. In the examples titanium dioxide and a tin stabilizer are also added.
Patent GB-1485980-A (GB)
Title: Process for producing cadmium sulphide for electrophotography
IPC: G03G5/08
Filed: 1974-11-15
Abstract: 1485980 Electro-photographic materials CANON KK 15 Nov 1974 49527/74 Heading G2C A process for producing doped CdS for electrophotographic materials comprising (a) contacting a source of sulphide ions with a source of cadmium ions and a donor impurity of Group, III of the Periodic Table to produce CdS containing the impurity and then (b) firing the CdS at a temperature below its sintering temperature, an acceptor impurity being added at step (a) or between steps (a) and (b). Specified donors are In, Al, Ga and Sc and specified acceptors are Cu, Ag and Au. In the Examples, H 2  S is blown into a sulphuric acid solution containing CdSO 4 , sulphate of In, Al, Ga or Se, cupric sulphate or silver nitrate between 40‹ and 80‹C to produce doped CdS particles which are then fired between 450‹ and 590‹C. Alternatively, cupric sulphate may be added before the firing stage or metallic Cd, Cu, and Al may be dissolved in sulphuric acid instead of using salts.
Patent GB-1245234-A (GB)
Title: Electrical connectors
Inventor: SILVER DENNIS EDWARD PETER
IPC: H01R9/28
Filed: 1967-11-01
Abstract: 1,245,234. Two part couplings. S.D.C. PRODUCTS (ELECTRONICS) Ltd. 25 Oct., 1968 [1 Nov., 1967], No. 49681/67. Heading H2E. An electrical circuit board comprises resilient contact strips 4 (Fig. 1) disposed in channels C under an insulating board 2 having holes 3 into which leads of electrical components may be inserted. The board 2 is sealed in a moulded plastics base 6, having slots and projections 9, 10 for connection to similar bases, and slots 11 for a mounting board 13 for potentiometers, which are connected to strips 4. Strips may be added at right angles to channel C for power supply. Strips 4 of Be-Cu may be divided into smaller mutually insulated lengths. The gripping portions of strips 4 beneath holes 3 are made independent of each other by lateral slots (15) between holes 3 (Fig. 2, not shown). Strips 4 may be replaced (Fig. 4) by individual spring contacts 18 disposed in wells 17 along channels C. Contacts 18 may be insulated from one another by the insertion of insulating pins. In another embodiment (Fig. 9 and Figs. 7, 8, 10, not shown) a flat strip (26) is opposed by individual spring contacts 30 along channels C, plastics inserts 31 guiding the component wires into position. In a final embodiment (Figs. 11-13, not shown), phosphor bronze channel shaped strips (48) with resilient opposing free ends are disposed along channels C, and removable inserts (52) are provided which may be replaced by prefabricated sockets for " dual in line " integrated circuits.
Patent GB-1091511-A (GB)
Title: Activity counting device in multichannel arrangement
Inventor: FRAYSSE GEORGE
IPC: G01T7/10
Filed: 1963-12-18
Abstract: 1,091,511. Measuring neutron flux. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Dec.17, 1964 [Dec.18, 1963], No.50057/63. Heading G1A. [Also in Division G6] To enable the flux distribution in a nuclear reactor to be investigated samples of metallic foils are distributed throughout the core and are rendered radio-active by the neutron flux. The activated foils are removed from the reactor and the activity is measured to provide a measure of the neutron flux associated with each foil. The device is stated to be suitable for Fourier analyzing the neutron flux distribution. The foils are mounted on a rotating disc and are viewed successively by a photo-multiplier tube. The output of the latter is a measure of the reactivity of the foil and thus also of the neutron flux at the position occupied by the foil in the reactor. As each foil passes the photo-multiplier, a signal is passed to the final indicating device such that the neutron flux measurement is displayed in association with the foil position.
Patent GB-1116727-A (GB)
Title: A pump or a reversible pump-turbine of the francis type
IPC: F04D29/46
Filed: 1965-11-26
Abstract: 1,116,727. Hydraulic turbines; centrifugal pumps. HITACHI Ltd. Nov. 26, 1965 [Jan. 25, 1965 (2)], No.50412/65. Headings F1C and F1T. To reduce vibrations in a circular row of adjustable guide vanes 4', 5', 6' of a pump or a pump-turbine of the Francis type, the ratio of the length CD to the length AE is between 0À86 and 1À0. The row of adjustable guide vanes is surrounded by a circular row of fixed guide vanes (not shown).
Patent GB-1256256-A (GB)
Title: Mixing valve
Inventor: KELLY WILLIAM MORTIMER
IPC: F16K11/072
Filed: 1969-10-17
Abstract: 1,256,256. Valves. RAYMOR PTY Ltd. 17 Oct., 1969, No. 51097/69. Heading F2V. A hot and cold water mixing valve has opposed inlets 13, 14 leading to separate inlet apertures 17, 18 in a cylindrical sleeve 12 inserted in a bore 11. Outlets (21), 22 for a bath and shower communicate with separate outlet apertures 24, 25 in the sleeve. A control spindle 27 is rotatable in the sleeve and has two sealing rings 31, 32 each in a plane at an acute angle to the axis of rotation and opposite an inlet aperture so that on rotation they are caused to move across the apertures to vary flow. Between the sealing rings the spindle is cut away apart from a flange 33 which sealingly engages the sleeve intermediate the outlet apertures. The position of the inlet and outlet apertures may be interposed. Stop valves are provided intermediate each inlet and its respective inlet aperture. The sleeve 12 may be dispensed with.
Patent GB-1158280-A (GB)
Title: Disc Stacking Machine Organization.
IPC: B65G57/30
Filed: 1967-05-16
Abstract: 1,158,280. Stacking-machines. EASTERN TARGET CO. Inc. 16 May, 1967 [20 July, 1966], No. 51301/67. Divided out of 1,156,261. Heading B8C. A machine for stacking clay pigeons 30 includes a belt conveyer 10 which feeds them past a detector arm 28, between opposed spring- loaded fingers 18 and against a pair of stops 16, one on each side of the conveyer. The arm 28 operates a switch initiating elevation of the pigeon by platform 14 to above the fingers which spring back to support it as the platform descends. The operation is repeated to build a stack. Eventually the uppermost article of the stack contacts a feeler 23 which results in raising of the conveyer by rollers 17 and piston and cylinder means 51 to above the level of the fingers. The stack is thereupon discharged. Rotary escapement means 60-62 may space the pigeons on the conveyer. Instead of the feeler 23, a counter may be used to cause discharge of the stack.
Patent GB-1537370-A (GB)
Title: Circuit for generating a saw tooth waveform
IPC: H03K4/83
Filed: 1976-12-10
Abstract: 1537370 Sawtooth wave generating circuits INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 10 Dec 1976 [11 Dec 1975] 51604/76 Heading H3T A circuit to generate periodic sawtooth currents in a coil 5, such as a TV deflection coil, has the coil connected in a first branch to an energy storing current source 4 through a first switch 1 having a control electrode 2 supplied by pulses which make the switch conduct in the first part of the stroke, and has a second branch containing a second current source, B<SP>+</SP> and 11, and a reactance 7 which receives energy from this source during the middle of the stroke, the first switch being on. Flyback is initiated by means of a second electronic switch 9 which is turned on near the end of the stroke to connect components to form a resonant circuit substantially comprising the first reactance 7 and a second reactance 8 connected between the second current source B<SP>+</SP>, 11 and the second switch 9. In operation, at the start of the stroke diode 3 conducts, 1 and 9 are off, while 4, and to a small extent 7, are contributing towards a linearly rising current in 5. Switch 1 is already turned on and when the current in 5 changes polarity this switch starts to conduct: The ramp continues and just before the end 9 is turned on, allowing a current to flow in 7 and 8. It rapidly becomes greater than the current in the deflection coil 5, so the switch 1 becomes reverse biased and goes off, current continuing via diode 3. The current in 8 drops to zero and stops conduction in diode 3 and also in switch 9. Flyback then commences during which a positive half-cycle waveform occurs across 5, with the resonant frequency set by 5 and 6. Current restarts to flow through the diode 3 and the next stroke commences. During the bulk of the stroke energy is stored in 7 through the impedance coil 11, being released to make up losses when switch 9 is turned on near the end of the stroke. It is stated that the inductors 11 and 8 could be a transformer and that the switches 1, 9 could be SCRs or transistors.
Patent GB-1530806-A (GB)
Title: Electrolytic refractory ore beneficiation
IPC: C25C1/00
Filed: 1975-12-17
Abstract: 1530806 Electrolytic metal recovery NL INDUSTRIES Inc 17 Dec 1975 51712/75 Heading C7B Pyrometallurgically reducible metal values contained in a refractory oxide ore are reduced, followed by electrolysis to solubilize a major portion of the reduced metal(s) and recovery of the refractory oxide portion. Oxides, optionally preroasted, of Si, Al, Ti, Zr, Hf, Th or V may be treated to recover Fe, Mn, Ni, Co, Cu therein. These metals, possibly with any alkali/alkaline earth metals, may be cathodically recovered as metals, hydrous oxides and/or in solution e.g. as Fe ammonium chloride. The reduced ore may be used as soluble anode. Cell operation below 100% efficiency wrt the solubilization may produce acids at the anode which assist the process.
Patent GB-1321063-A (GB)
Title: Conveying webs of material
IPC: B29C33/44
Filed: 1970-10-30
Abstract: 1321063 Web feeding device ILLINOIS TOOL WORKS Inc 28 July 1970 [28 July 1969] 51809/72 Divided out of 1321062 Heading B5A [Also in Divisions B8 and E2] A continuous thermoplastic web 6 is fed to forming moulds carried about the curved periphery of a moulding drum by a series of spring clips 26 which engage the upper edge of the web and let it hang freely. Each clip includes a pair of spring clamping elements having upper parallel sections mounted by shafts 196 to the links of a chain 28, divergent/convergent middle body sections 208, 210 and lower parallel clamping sections 212, 214 which engage the web. Reciprocably mounted within the clamping elements is a plunger 215, the lower end of which is provided with a foot section 223 having a curved lower surface provided with guiding wing elements 225, 227 which move through slots 228, 230 in the clamping elements. A cross shaft 216 passing through an elongated slot 221 in the plunger is provided to assist in guiding the plunger and to limit its movement. In use, when each clip nears the moulding station, the chain passes over a sprocket 232 the teeth 234 of which engage the upper end of the plunger and force it downwardly to move the clamping sections apart and release the sheet.
Patent GB-1527128-A (GB)
Title: Process for the manufacture of anthraquinone compounds
IPC: C09B1/52
Filed: 1975-12-19
Abstract: 1527128 Preparing anthraquinone dyestuffs CIBA-GEIGY AG 19 Dec 1975 [20 Dec 1974] 52234/75 Heading C4P Anthraquinone compounds of the general formula wherein X is H, optionally substituted C 1 -C 6  alkyl or optionally substituted aryl radical or an alkylene radical attached to the ring A to form a heterocycle containing the oxygen atom and ring A may be further substituted are prepared by sulphonating a 1,5-dialkoxy-, 1,5-dicycloalkoxy or 1,5-diaryloxyanthraquinone in the 2- and 6-positions, and then in the same reaction vessel without isolating intermediates introducing two amino groups in the 4- and 8-positions by reacting the sulphonated intermediate with hydroxylamine or a salt thereof in presence of a metal catalyst in sulphuric acid medium, converting the 1,5-disubstituted-4,8-diamino-anthraquinone 2,6-disulphonic acid into its boric acid complex, introducing the radical by reacting the boric acid complex with a benzene compound saponyfying the boric acid groups and splitting off an -SO 3 H group. The starting materials are prepared by reacting 1,5-dinitroanthraquinone with an alcoholate or phenolate. Preferred benzene compounds are phenol, methoxyphenol, ethoxybenzene, #-hydroxyethoxybenzene and cresol, and mixtures of phenol and methoxybenzene.
Patent GB-1482823-A (GB)
Title: Take-out arbor for receiving strip material in a strip accumulator
IPC: B65H51/20
Filed: 1975-01-15
Abstract: 1482823 Web accumulators LOOPCO INDUSTRIES Inc 15 Jan 1975 [28 March 1974] 52646/76 Divided out of 1482821 Heading B8R The subject-matter of this Specification is substantially the same as that of the parent Specification, but the claims are directed to the constructional features of the arbor means which has the form of a roller, mounted pivotally at one end and provided about its periphery with a helical array of freely rotatable guide rollers.