baber/WOPTO huggingface dataset:
Patent GB-1222880-A (GB)
Title: Barium hydroxide monohydrate
IPC: C01F11/02
Filed: 1968-09-25
Abstract: 1,222,880. Barium hydroxide monohydrate. FMC CORP. 25 Sept., 1968 [26 Sept., 1967], No. 45470/68. Heading C1A. Barium hydroxide monohydrate is produced by evaporating a 50-66% by weight aqueous solution of Ba(OH) 2  placed as a thin film on a heated surface to yield particles containing a major proportion of Ba(OH) 2 .H 2 O and removing excess water from the particles by heating at 100-140‹ C. whilst sweeping an inert gas (e.g. N 2 , He or CO 2 -free air) over the heated particles e.g. in a rotary kiln or a fluidized bed.
Patent GB-1207393-A (GB)
Title: Process for preparing straight-chain aliphatic and cycloaliphatic sulphonic acids
IPC: C07C303/14
Filed: 1967-10-06
Abstract: 1,207,393. Sulphonic acids. FARBWERKE HOECHST A.G. 6 Oct., 1967 [14 Oct., 1966], No. 45654/67. Heading C2C. Saturated straight-chain aliphatic or cycloaliphatic sulphonic acids containing 10-30 carbon atoms are prepared in a continuous process by reacting the corresponding hydrocarbon with sulphur dioxide and oxygen which process comprises introducing ozone into the reaction mixture until the production of sulphonic acid has started, subsequently stopping the introduction of ozone and continuously introducing the reactants, while continuously transferring reaction mixture to an extraction zone, which contains a mixture comprising 15-50% sulphonic acid, 5-40% water, 20-60% hydrocarbon and 3-10% sulphuric acid, and into the upper end of which water is fed in such an amount as to maintain the proportion of water in the extraction mixture withdrawing extraction mixture from the lower end of the extraction zone as an extract and recycling the supernatant hydrocarbons from the upper end of the extraction zone to the reaction mixture.
Patent GB-1300708-A (GB)
Title: Improvements in centrifugal governors
IPC: F02D1/04
Filed: 1971-10-01
Abstract: 1300708 Speed Governors ROBERT BOSCH GmbH 1 Oct 1971 [3 Oct 1970] 45725/71 Heading G3B A speed governor for a fuel injection pump of an I.C. engine comprises a thrust sleeve 15 and connection piece 15b the end of which is engageable with a reaction lever 39, pins 19 being provided on the connection piece engageable in slots in a guide lever 21. The guide lever consists of two parallel arms connected as a single lever by cross-member 24 which has a pin 25 which engages and moves an intermediate lever 26. The lower end of the intermediate lever is pivoted at 29 and the upper end acts via a link 30 on the regulating rod of the pump. A starter spring 38 is also connected at this upper end. The guide lever and the reaction lever are both pivoted at 22. A governor main spring 36 which is connected to the reaction lever 39 has an effective spring rate and tension by an adjustable setting lever 34. When the setting lever 34 is moved from the highest governed speed (full lines fig. 1) towards the idling speed, the tension on a spring 53, Fig.3, is relaxed which allows a piston 59 to be brought into the path of the intermediate lever 26. Under these conditions the governor is then subject to the force of an addition idling spring 61.
Patent GB-1248673-A (GB)
Title: A control valve head for a rotary drum vacuum filter
IPC: B01D33/00
Filed: 1969-09-18
Abstract: 1,248,673. Rotary drum filter with control head. MASCHINENFABRIK BUCKAU R. WOLF A.G. 18 Sept., 1969 [18 Sept., 1968], No. 46164/69. Heading B1D. Filtering and cleaning of a rotary drum filter comprising peripheral filtration compartments 2, Fig. 2, is effected from a control head 8, Fig. 3, which abutts the neck of the drum filter so that leading conduits 7, Fig. 2, are in continuous communication with inner conduit 18, Fig. 3, and trailing conduits 6, Fig. 2 are in continuous communication with conduit 17, Fig. 3, conduits 17 and 18 being divided into separate sections by bridges 23, 24, 25, 35, 36, 37, 38 40, 41, which bridges can be deliberately moved into different positions from outside the control head 8 without having to first dismount the head 8. Bridge 23 may be movable by a rack and pinion arrangement (Figs. 4 and 5, not shown) or by a worm (46, Fig. 6 not shown). The other bridges are movable by unscrewing from the bores in the conduits into which they are inserted, Fig. 7; and screwing them into the desired bore. Bores which do not contain bridges are sealed from the outside by screw inserts 26a. As the filter drum rotates, so conduits 6 and 7 of each compartment 2, Fig. 2, communicates with different parts of conduits 17 and 18 of control head 8, Fig. 3. Suction is applied at ports 11 and 22, and gas is applied at ports 19 and 20. Communication of conduits 6 and 7 with sector a of conduits, 17 and 18 causes or allows filtration, communication with sector b allows for washing in which sub sectors c and d causes blowback of washing liquid from compartments 2 back through conduit 6 and/or 7, and communication with sector F causes blow off of the filter cake. Sector g is a dead zone. Bridge 23 and 24 are placed relatively to allow for the time for washing liquid to pass through the filter cake into compartment 2.
Patent GB-1194139-A (GB)
Title: Improvements in Hydraulically-Operated Supporting Devices for Mines
IPC: E21D15/44
Filed: 1968-09-30
Abstract: 1,194,139. Mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. 30 Sept., 1968 [21 Oct., 1967], No. 46287/68. Heading E1P. In a mine roof support comprising a doubleacting, fluid-pressure actuated prop 1 mounted on a piston-and-cylinder unit 7 likewise actuated, the lower and upper working chambers of the unit 7 are connected to the upper and lower working chambers of the prop 1 respectively through optional supply and exhaust lines 12, 16 having branch conduits provided with one-way valves 14, 14', 20 and relief valves 13, 19 arranged as shown. The above arrangement is such that the prop is first extended against the mine roof whereupon a given setting pressure opens the valve 13 to urge the piston 9 into the mine floor. Piston 9 is first retracted before the prop is robbed by pressure fluid fed through a relief valve 19 to act on a device 15 to open the valve 14'.
Patent GB-1399488-A (GB)
Title: Silver halide photographic light-sensitive elements
IPC: C09K23/28
Filed: 1972-10-06
Abstract: 1399488 Photographic silver halide materials FUJI PHOTO FILM CO Ltd 6 Oct 1972 [8 Oct 1971] 46344/72 Heading G2C [Also in Division C2] A photographic silver halide element comprising a layer or layers on a support, contains in the emulsion layer or another layer a compound of the Formula:- where R is a saturated or unsaturated hydrocarbon group of 7-21 carbons, R<SP>1</SP> and R<SP>2</SP> are each alkyl, hydroxyalkcyl or a polyalkylene oxide group of 1-18 carbons, R<SP>3</SP> and R<SP>4</SP> are each hydrogen or alkyl of 1-4 carbons n is an integer of 2 or more and x is 0 or 1, the layer containing the said compound also containing as a hydrophilic binder, gelatin, albumin, a polysaccharide, a cellulose derivative, a polyacrylamide or a mixture thereof, or said layer containing a hydrophobic binder. The compounds may be used as antistatic agents in the emulsion layer or in a layer on the opposite side of the support, and as coating aids.
Patent GB-1037771-A (GB)
Title: Compositions for use as photo-conductors
IPC: C07D277/66
Filed: 1962-12-11
Abstract: 2 - (4 - diethylaminophenyl) - 3 - ethyl - 6-methyl - benzothiazolium p - toluene sulphonate is prepared by refluxing a mixture of dehydrothio - p - toluidine [2 - (4 - aminophenyl) - 6 - methyl - benzothiazole], ethyl p-toluene sulphonate, potassium carbonate, and o-dichlorobenzene.  The reaction mixture is worked-up to obtain 2-(4-diethylaminophenyl)-6-methyl-benzothiazol which after purification is heated with ethyl p-toluene sulphonate to obtain the crude product.  The corresponding tri-benzyl compound is obtained by heating dehydrothio-p-toluidine in o-dichlorobenzene with benzyl chloride and potassium carbonate.  Potassium iodide is used as a catalyst. After purification the dibenzyl-amino derivative obtained is heated with benzyl bromide to give a mixture from which the tribenzyl compound may be obtained.  The corresponding trimethyl compound [(2:4 dimethylaminophenyl) - 3:6 - dimethyl - benzothiazolium p-toluene sulphonate] is obtained by the action of ethyl p-toluene sulphonate on the quaternary chloride.ALSO:In the production of electrophotographic materials zinc oxide is dispersed in a toluene or toluene-methanol solution of a styrene-butadiene (7:3 parts by weight) copolymer and small quantities of organic dyestuffs are added. Dyestuffs identified are alphazurine 2G, Phloxine B, S1334 Pina, the triethylamine salt of 3 - carboxymethyl - 5 - (3 - ethyl - 2 - benzo-thiazolylidene) - rhodanine, and several compounds having the nucleus <FORM:1037771/C3/1>
Patent GB-1014585-A (GB)
Title: Improvements in or relating to the purification of hydrogen by scrubbing with liquidnitrogen
IPC: F25J3/02
Filed: 1962-12-12
Abstract: Crude hydrogen gas is scrubbed with liquid nitrogen at a pressure of 500-1600 p.s.i. to produce hydrogen gas which may have a purity of up to 98%.  The crude hydrogen may be precooled to - 300 DEG  F. by indirect heat exchange with the scrubbed hydrogen. Hydrogen may be flashed off from the liquid nitrogen after scrubbing at a pressure of 450 p.s.i. and recycled. The crude hydrogen may be generated at high pressure and may contain carbon dioxide, carbon monoxide, methane and argon. Carbon dioxide may be removed before scrubbing by chemical absorption, absorption in a solvent or condensation.
Patent GB-1132184-A (GB)
Title: Latch needle for knitting machines
IPC: D04B35/02
Filed: 1967-10-17
Abstract: 1,132,184. Knitting machines. H. STOLL, G. STOLL, E. STOLL, E. STOLL, J. STOLL, A. STOLL, R. E. STOLL and M. STOLL. 17 Oct., 1967 [25 Nov., l966], No. 47154/67. Heading D1C. The needles of a parallel machine are recessed on the back edge of the shank as at 6 to provide an inverted V-shaped groove cut across the shank which is connected by a slot 5 in the back of the shank to the usual inclined recess 4 provided for engagement by the needle of the opposed bed when a loop transfer operation is performed. The needle in the opposed bed is raised to project its head into the recess 6 whereafter movement of the needle transferring the loop causes the edge 6" to engage the latch as the head passes into the communicating slot 5 causing the latch to be opened. Consequently the receiving needle is in an open condition when it reaches the position for advancement to receive the loop from the transferring needle.
Patent GB-1330317-A (GB)
Title: Method of centering a shaft in a bearing and hydrostatic  bearing with high rigidity for carrying out this method
IPC: F16C32/06
Filed: 1970-10-05
Abstract: 1330317 Hydrostatic bearing AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 5 Oct 1970 [10 Oct 1969 24 Sept 1970] 47171/70 Heading F2A A shaft A is centred in a hydrostatic bearing having at least three circumferentially spaced fluid chambers 1, by feeding fluid to the chambers from a common source via a distributer which impedes the reduction in the supply to any chamber in which the pressure increases due to the movement of the shaft. The chambers are provided in a sleeve 6 which is surrounded by a ring 9 which has a limited radial clearance about the sleeve. Angular movement of the ring relative to the sleeve is prevented by a key 35. Cavities 10 are provided in the ring, which communicate with an annular supply chamber 12, there being a cavity corresponding to each chamber 1. Axial ducts 14, 15 are provided in the rings 7, 8 which surround the ring 9 and sleeve 6, the ducts allowing flow of fluid from the cavities 10 to their corresponding chambers 1 via nozzles 11. In operation, when the shaft is centred in the bearing the ring 9 is concentric with the sleeve and the supply of fluid to the chambers is uniform. When the shaft is radially displaced the pressure in the chamber towards which the shaft is displaced increases due to the restriction of the outlet passages. The increase in pressure is communicated to the corresponding cavity 10 and due to the unbalance of pressure on the ring 9, the ring moves radially to allow more fluid to flow from the cavity to the chamber, thereby tending to return the shaft to its normal position. The fluid leaving the chambers is collected in longitudinal grooves 2 and annular grooves 17, 18 and leaves the bearing via duct 29. The axial position of the shaft may be maintained by two opposing fluid thrust bearings (Fig. 5, not shown).
Patent GB-1121732-A (GB)
Title: Apparatus for conveying loads
Inventor: PARFITT NORMAN LESLIE CYRIL
IPC: B61B13/12
Filed: 1964-11-20
Abstract: 1,121,732. Conveyer systems. COAL INDUSTRY (PATENTS) Ltd. 19 Nov., 1965 [20 Nov., 1964], No. 47341/64. Heading B7L. A conveyer system for transporting personnel and/or materials along an underground roadway in a mine, comprises a series of rotatably driven tubes coupled end to end and extending along the roadway, and a load carrying carriage having runners 1-8 provided with drive rollers engaging the driven tubes, each runner e.g. 1 being linked to its adjacent runner i.e. 2 by arms A pivoted to support members B and brackets C, each arm A performing a pivotal movement in a plane parallel to the intended line of motion of the carriage, upon relative movement between the runners axially of the driven tubes, which pivotal movement is applied hydraulically to angularly adjust the axes of the drive rollers with respect to the driven tube axes to thereby alter the tractive effort applied to the runners. Each pair of runners is linked by members D and the pair so formed is joined by a member F to a load carrying bracket G. The leading runner 1 is a master runner and the rollers thereon are manually adjustable e.g. to move the runner 1 in the direction E. This movement pivots the arm A1 about the end of the member B1.2, the piston K1 of the fluid piston cylinder J1 moving to increase the pressure in the line L1.2 which causes the piston of the fluid operated ram H2 to be moved to adjust the angle between the rollers on the runner 2 and the tube axes, so advancing the runner 2. The advance of the runner 2 pivots the arm A2 on the other end of the member B1.2 so moving piston K2 in cylinder J2 and hence the piston of the ram M2 which also adjusts the angle between the rollers and the tube axes to compensate for any unequal movement of the runner 2 with respect to the runner 1. The cylinder J2 is linked to ram H3 by a line L2.3.
Patent GB-1442167-A (GB)
Title: Memory unit for connection to a central processor unit and inter connecting bus and computer systems incorporating the same
IPC: G06F13/18
Filed: 1973-10-10
Abstract: 1442167 Data processing systems DIGITAL EQUIPMENT CORP 10 Oct 1973 [10 Oct 1972] 47349/73 Heading G4A A data processing system includes a central processor, a fast access memory, and one or more peripherals, connected in parallel to a bus. The memory is additionally connected direct to the processor. The bus (bus I) comprises 2-way data lines 1A, address lines 1B, and control lines 1C, all connected to a receiver and driver unit 24, necessary because the bus may be long. Data received on lines 1A is passed to data multiplexer 28 which also receives data from a portion 10A of a dedicated bus 10 connected direct to the processor. A synchronizing and timing unit 21 receives control signals from bus 1 and bus 10, and controls unit 28 via line 34 to pass data from input lines 10A or 30 to the memory 20. Address signals on dedicated but lines 10C and from unit 24 pass to an address unit 23 and also to unit 25. This unit indicates to unit 23 whether or not the present address lies within memory 20 and to what section of the memory it relates. The synchronizing unit 21 controls whether a bus 1 address, a bus 10 address, or a refresh address is placed in the address register in unit 23 in accordance with a priority determined by the processor. The accepted address is accessed via lines 27. Periodically the memory is refreshed, the address to be refreshed being selected by unit 22.
Patent GB-1197945-A (GB)
Title: Web Slitter and Separator
IPC: B65H23/025
Filed: 1967-10-18
Abstract: 1,197,945. Feeding webs. BELOIT EASTERN CORP. 18 Oct., 1967 [9 Nov., 1966], No. 47474/67. Heading B8R. A pair of curved axis, nonrotating bars 45, 51 are used for transversely separating parallel webs longitudinally slit from a single web W. The first bar 45 causes the webs to diverge, and the second bar 51 causes the webs to run spaced and parallel. The bars may be adjusted in the direction of the arrows 70 to 75 to vary the separation of the webs. In a modification (Fig. 5) the bars are tubular and perforated, and air above atmospheric pressure is supplied thereto to cause air bearings at the surfaces thereof. In (Fig. 4) the bars may be either a continuous flexible strip or a plurality of individual segments. At evenly spaced intervals along the bars, a plurality of adjustment devices (65) provide bearing to any desirable degree. The bars are utilized in web-slitting and rewind apparatus (Figs. 1 and 2).
Patent GB-1457685-A (GB)
Title: Decoder circuits
IPC: H03M7/22
Filed: 1974-11-04
Abstract: 1457685 Decoders WESTERN ELECTRIC CO Inc 4 Nov 1974 [9 Nov 1973] 47667/74 Heading G4H A binary to 1-out-of-N decoder circuit includes at least two pairs of output terminals 1, 2; 3, 4, at least one switching device 35, 40 connected across each pair of output terminals, a pair of switching devices, e.g. 30, 41 associated with each of said output terminals, the two devices of each such pair of devices being connected between their associated output terminal and respective terminals for receiving different potentials, and means connecting control electrodes of all of said devices to input terminals for receiving binary input signals. In Fig. 3, in the quiescent state, signal C earths all the output lines 1-4 via IGFET (or MOS) devices 30-33. During decoding, this is not done but all but one of the output lines are connected to a positive source via one or two of the other such devices shown, which receive the binary input to be decoded. Decoders with larger numbers of outputs require further IGFET (or MOS) devices in parallel with 35, 40 and the corresponding devices relating to the further pairs of outputs. Horizontal and vertical address decoders, each as above, may address a MOS matrix memory on the same integrated chip as themselves.
Patent GB-1484189-A (GB)
Title: Wire baskets
IPC: B65D21/04
Filed: 1974-11-04
Abstract: 1484189 Moulding containers MUNKSJÍ AB and PELLY AB 4 Nov 1974 [5 Nov 1973 14 Oct 1974] 47684/74 Heading B5A [Also in Division B8] A plastics container may be formed on a wire frame (see Division B8) by vacuum forming. Frames in the form of baskets are fed by a conveyer 61, and plastics sheet is fed from a supply roll 62 into a space between a vertically reciprocable knife member 56 and a chamber 41 provided with evacuating means 43, and heating means if necessary. Blanks from the sheet are drawn into engagement with the baskets, the resultant containers being discharged by a conveyer 64.
Patent GB-1517618-A (GB)
Title: Burners for liquid fuels
IPC: F23D11/24
Filed: 1976-11-16
Abstract: 1517618 Liquid fuel burners MAX WEISHAUPT GmbH 16 Nov 1976 [1 Dec 1975] 47733/76 Heading F4T A liquid fuel burner comprises an atomizing nozzle 8, and an air tube 2, which has a conical end 5, a mixture distributor 10, having apertures 11, and a tubular member 13, and an adjustable swirler 18 for producing air turbulence during start-up in one position, and no turbulence in the running state, after distributor 10 has been heated-up. In the start-up position as shown at the top of Fig. 1, the air passes through swirler 18, and in the running state as shown at the bottom of Fig. 1, the swirler is withdrawn. In a modification, Fig. 2 (not shown), swirler 18 is replaced by a sliding sleeve (31), which controls the air supply to slots (30), and a second air tube (23).
Patent GB-479243-A (GB)
Abstract: 479,243. Gyroscopic apparatus. MOSS, D. G. K., and PEIRCE, H. C., (trading as MECHANISM). Feb. 19, 1937, No. 5005. [Class 97 (iii)] Re-setting in azimuth of a directional gyroscope is effected by precession brought about by the mechanical creation of a couple between the inner and outer gimbals. As shown the rotor casing 2 pivots on a horizontal axis in the vertical ring 3, pivoting in turn on a vertical axis 67 in the frame 4. Air is supplied through the lower hollow vertical trunnion and hollow gimbal 3 to a rotor driving jet at the inner end of a horizontal hollow trunnion. The air escapes either through a pair of opposite orifices in a sleeve surrounding the other horizontal trunnion which is provided with a baffle differentially controlling the orifices to provide a torque for maintaining the spin axis normal to the plane of the gimbal 3 or through a pair of oppositely-directed orifices in a chamber on the casing 2, the chamber containing a rolling ball which differentially controls the orifices and provides a torque for maintaining the spin axis horizontal. The couple between the two gimbals is brought about by raising a lever 100, pivoted to the gimbal 3 at 102, so that a vane 135 bears against one of a series of vanes 66 carried by the rotor casing 2. The lever 100 is operated by raising a flanged ring 116 surrounding the lower vertical trunnion and connected to the lever 100 by the bell-crank 112 with a spring arm 110. A second lever, similar to the lever 100, is raised when the ring 116 is lowered and serves to cause precession in the opposite direction.. The ring 116 is moved to the raised or lowered position, where it is held by a spring detent, by means of a pivoted fork 119 having rollers 121 at one end to engage between the flanges on the ring 116 and at the other end a pair of resilient arms 122, 123, embracing a cam 124 on a spindle 125 carrying a control knob (not shown). The cam 124 is shaped so that the arms 122, 123 are slightly distorted in operation causing the rollers 121 to move clear of the flanges after the ring 116 has been moved.
Patent GB-1088620-A (GB)
Title: Analogue-digital converter
IPC: H03M1/00
Filed: 1965-11-12
Abstract: 1,088,620. Analogue-digital converters. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Nov. 12, 1965 [Nov. 16, 1964], No. 48107/65. Heading G4H. Threshold devices constituted by differentially wound magnetic cores Sm1-Sm4 are so interconnected that an input signal Se applied to the serially connected primary winding causes the cores to be set in a pattern representing the input value in the binary scale. Each core has two secondary windings, one of which, Wr, is shunted differentially if a defined winding voltage is reached and the other of which, Wk, is shunted by a short-circuit arrangement if the voltage is not reached.
Patent GB-1214880-A (GB)
Title: Improvements in or relating to standby power supply systems arrangements
Inventor: WEINBERG ALAN HENRY
IPC: H02M7/53862
Filed: 1968-10-11
Abstract: 1,214,880. Standby power supplies; reactive current converters. PLESSEY CO. Ltd. 11 Oct 1968, No. 48274/68. Headings H2F and H2H. An emergency power supply system comprises an inverter 1 which is locked in phase quadrature with an A.C. power supply, and which provides current to the load 4 in the event of a power failure. Under normal conditions the inverter provides charging current for battery 5, and a voltage proportional to this current is derived across resistor 14 for controlling phase shift circuit 6. The oscillator of inverter 1 is synchronized with the power supply via the phase shifter 6 so as to maintain its output substantially in quadrature with the supply. The control voltage from resistor 14 causes the phase angle to differ slightly from 90 degrees to provide a charging current for the battery 5. In the event of a power failure, the inverter 1 takes over and controls thyristors 23 to prevent power being fed back to the mains input.