baber/WOPTO huggingface dataset:
Patent GB-1495799-A (GB)
Title: Gas pressure regulation system for forced draft gas heaters
IPC: F23N1/06
Filed: 1975-10-30
Abstract: 1495799 Burner gas supply control; controlling fuel supply automatically SAUNIER DUVAL 30 Oct 1975 [16 Dec 1974] 45064/75 Headings F4B and F4T [Also in Division G3] A sealed forced-draught heater comprising a burner 2 and an extruder fan 5 has a gas regulation system comprising a pneumatic valve 1 having a membrane 11 responsive to the pressure differential across the fan, and a further valve 41 for controlling the pressure differential applied to the membrane 11 as a function of the pressure of the gas to be supplied to the burner. When a solenoid valve (not shown) between the valve 1 and the heater is open and the fan 5 is operating at its minimum speed gas flows through orifices 36 in valve member 16 via chamber 17 to the burner. When the demand for heat increases, the speed of fan motor 28 increases, as does the pressure differential sensed by conduits 32, 33 and applied across the membrane 11, so that the valve 16 is further opened; this is opposed by spring 38 whose compression is adjusted by screw 35. It is also opposed by the pressure of the gas in chamber 17 acting on membrane 19, so that an equilibrium position of the valve 16 is eatablished. The pressure of the gas in conduit 8 acts via conduit 45 on membrane 43 to control the position of valve member 41 in conduit 40 which connects the conduits 32, 33. If the gas supply pressure is sufficiently high valve 41 will be fully closed and the full pressure differential across the fan will apply across the membrane; at a lower gas supply pressure the valve 41 will be opened, reducing the pressure differential applied across the membrane and thus compensating for the reduced pressure acting on the membrane 19, so that the equilibrium position of the valve member 16 is maintained.
Patent GB-1405951-A (GB)
Title: Traffic signal installations
IPC: G08G1/08
Filed: 1972-10-02
Abstract: 1405951 Controlling traffic signals SIEMENS AG 2 Oct 1972 [30 Sept 1971] 45263/72 Heading G4Q In a traffic signal installation wherein traffic detectors are disposed at the entrances to an intersection and serve to detect the occupation or non-occupation of an associated area by vehicles, each detector D1-D4 is associated with a measuring device M1-M4 which stores quantities corresponding to the duration of periods of occupation and non-occupation and controls the phases in accordance with criteria derived from these quantities. The measuring devices may operate by counting pulses and producing control signals when predetermined counts are attained. However, in a preferred form (Fig. 3) each measuring device utilizes capacitors. Two circuits are provided in each device. In the first circuit (upper part of the figure) capacitor C1 is charged and discharged according to the state of contacts S1<SP>1</SP> of switch S1 connected to the associated detector such that when the detector detects a vehicle the capacitor is discharged and when it detects a gap between vehicles the capacitor is charged. Resistors W1, W2 are chosen so that for normal traffic flow the capacitor charge fluctuates between narrow limits. Ultimately, when the flow is such that overall charging leads to the output of an operational amplifier V1 reaching a limiting voltage + Ug1, a comparator K1 produces a signal at output 3 for the duration of this state. In the second circuit (lower part of the figure) an arrangement similar to that of the first circuit is such that, as the time gaps between vehicles become shorter owing to traffic build-up, the output of an operational amplifier V2 becomes increasingly negative and reaches a limiting voltage-Ug2 when comparator K2 produces a signal at output 4. As shown in Fig. 2, the outputs 3 of devices M1, M3 and M2, M4 combine in AND-gates U1, U2 respectively for actuating a switch S3 to control signal pairs Sg1, Sy3 and Sg2, Sg4. Thus, only while each device M1 and M3 simultaneously supplies an output at 3 will a phase change occur. In order to provide a maximum green time, a fixed time control can be incorporated, to operate when the traffic flows across detectors D1, D3 or D2, D4 undergo pattern changes which fail to produce simultaneous signals at outputs 3. The outputs 4 of devices M1, M3 and M2, M4 pass via OR-gates 01, 02 respectively to switch S3 to control the signals when an individual signal on any output 4 is provided due to traffic build-up. The detectors D1-D4 may be inductive loops.
Patent GB-1475491-A (GB)
Title: Manganese dioxide-coated cathode
IPC: H01M4/64
Filed: 1972-10-02
Abstract: 1475491 Coated cathodes CANADA DEFENCE MINISTER OF and T VALAND 2 Oct 1973 [2 Oct 1972] 45358/72 Heading B2E [Also in Divisions C7 and H1] A cathode, useful in a LeclanchÚ cell, comprises a lead base, e.g. of perforated or expanded Pb foil, bearing an anodized layer onto which is adhered a compressed conductive layer of MnO 2  and C. The anodized layer must be no thicker than that produced by anodising in 8N H 2 SO 4  with the passages of 18 coulombs of electricity/in<SP>2</SP> of Pb surface. Anodising may be effected in 1-12N H 2 SO 4  using 3.6 to 14.4 coulombs/in<SP>2</SP>, the MnO 2 -C coating being applied as an aqueous paste containing carboxymethyl cellulose as binder and being subsequently pressed e.g. at 7000 psi. The coating may contain 10-20% by wt C, e.g. as graphite, relative to MnO 2 . The LeclanchÚ cell has an amalgamated Zn anode, e.g. prepared by dipping Zn sheet in aqueous HgCl 2 -H 2 SO 4 , may contain an expanded polypropylene mesh separator, and is activated with H 2 SO 4 . Comparative cells may have cathodes of Pt, unanodized Pb, Ni, Ag or stainless steel.
Patent GB-983798-A (GB)
Title: Treating coke
IPC: C10L9/00
Filed: 1962-12-07
Abstract: A method of purifying coke particles from a fluid coking process comprises increasing the surface area of the particles, e.g. by low temperature oxidation and/or high temperature steaming, and then treating the particles with a reagent, e.g. a solution of NH4OH or NaOH, or HCl, or with chlorine, or gaseous HCl to remove some at least of the contaminants, e.g. vanadium, nickel and sulphur. Fluidized bed techniques may be used both for the oxidation (with air), which may be at 600 DEG  to 1000 DEG  F., and the steaming, which may be at 1400 DEG  to 2000 DEG  F. Before or after treatment with the reagent, the coke may be desulphurized with hydrogen and the treated coke may finally be made dense by cracking a fluid hydrocarbon, e.g. natural gas or CH4, at 1400 DEG  to 2000 DEG  F. over the coke to deposit fresh coke thereon, the H2 produced being used, if desired, to desulphurize more coke.  The extraction of metal with the reagent may be at any temperature between ambient and 225 DEG  F., and two or more such extraction steps may be carried out in succession. Eleven specific examples are described, giving times, proportions &c.  In cracking a fluid hydrocarbon over the coke, a fluidized or fixed bed of coke particles may be employed, and hydrocarbons specified include ethane, propane, butane, olefins and low octane naphthas, treatment times varying between 0.25 and 4 hours. U.S.A. Specifications 2,805,177 and 2,881,130 are referred to.
Patent GB-1242918-A (GB)
Title: Means for discriminating between originating and terminating calls
IPC: H04M3/36
Filed: 1969-09-19
Abstract: 1,242,918. Automatic exchange systems. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 19 Sept., 1969 [20 Sept., 1968], No. 46320/69. Heading H4K. An arrangement for discriminating between originating and terminating calls comprises first and second detectors arranged to detect potential transitions in a subscriber's line and a control line, respectively, each detector being arranged, if first to operate, to prevent subsequent operation of the other detector, a holding circuit triggered by operation of the first detector and maintained by operation of the second detector and a gate which isolates the first detector from the subscriber's line when the holding circuit and/or the second detector operates. If the first transition occurs on the subscriber's line the call is an originating one and if the first transition occurs on the control line the call is a terminating one. The isolation is provided to comply with telephone regulations. In the event of a terminating call the second detector operates throughout the call and isolates the first detector from the line. In the event of an originating call the first detector operates setting the holding circuit which is bi-stable and thus isolating itself. It is assumed that a transition will also occur on the control line. The second detector thus responds and at the end of the call, the cessation of output from the second detector operates via an inverter to reset the bi-stable. Thus the bi-stable is set throughout each originating call and operates the isolation device. The times for the originating and terminating calls can thus be accumulated separately for statistical purposes.
Patent GB-1200689-A (GB)
Title: Novel substituted benzhydryl isothiocyanates and a method of preparation of same
IPC: C07C331/24
Filed: 1968-09-30
Abstract: 1,200,689. Substituted benzhydryl isothiocyanates. CESKOSLOVENSKA AKADEMIE VED. 30 Sept., 1968 [29 Sept., 1967], No. 46354/68. Heading C2C. Benzhydryl isothiocyanates of the formula wherein R and R<SP>1</SP> are selected from hydrogen, halogen, methyl, methoxy, nitro and isothiocyanate groups, are obtained by reacting thiophosgene in the medium of a water-immiscible organic solvent having a high specific gravity than water, and in the presence of water and a base, with an amino compound of the formula or with a hydrochloride of such an amino compound. The solvent is preferably dichloroethane or chloroform and the base a carbonate or bicarbonate of an alkali metal or alkaline earth metal. The products are characterized by their selective activity against gram-positive bacteria and mycobacteria. Benzhydryl isothiocyanates of Formula (I) above (excluding mono-substituted compounds having a chlorine atom at position 2 or 4, or a nitro or methyl group at position 4) are novel compounds.
Patent GB-1464401-A (GB)
Title: Aminoglycosides
IPC: A61K31/7028
Filed: 1974-10-26
Abstract: 1464401 Silylated aminoglycoside PFIZER Ltd 24 Oct 1975 [26 Oct 1974] 46412/74 Heading C3S [Also in Division C2] The penta - N - acetyl - octa - O - trimethylsilyl derivative of 1 - N - [(S) - 4 - amino - 2- hydroxybutyl] - kanamycin A is prepared by treating 1 - N - [(S) - 4 - amino - 2 - hydroxybutyl]-kanamycin A with acetic anhydride in methanol at room temperature for 24 hours, followed by a 2 : 1 mixture of hexamethyldisilazane and trimethylchlorosilane at room temperature for 24 hours.
Patent GB-1325390-A (GB)
Title: Photographic emulsion melting process
IPC: G03C1/025
Filed: 1971-10-08
Abstract: 1325390 Comminuting photographic emulsions AGFA-GEVAERT AG 8 Oct 1971 [10 Oct 1970] 46943/71 Heading B2A Apparatus for continuously melting solidified photographic emulsions comprising a comminuting apparatus, a measuring arrangement, a fluidizing chamber and a separator. The comminuting apparatus comprises a vertical pipe section 2 which is open at its top end and closed at its bottom end. The pipe has openings 3 in its wall surface and is surrounded by an evacuator chamber 4. Thus the granules are forced through the holes and comminuted. The measuring arrangement adjusts the quantity of the supplied emulsion granules and comprises a vertically adjustable core 11 the diameter of which is slightly less than the internal diameter of the pipe section 2. The fluidizing chamber 5, which in use is under vacuum and melts the granules discharged from the openings in the pipe comprises a cylindrical vessel having nozzle slits 13 in its wall to permit steam to flow through tangentially. The separator 6 is connected to the bottom end of the fluidizing chamber. The rate of feed of emulsion via the core 11 is controlled in response to temperature in the molten emulsion discharge pipe 15 and the steam pressure is monitored in the steam outlet pipe 8 from the separator and used to control a valve 10 which regulates the steam vacuum in the fluidizing chamber 5 and separator 6. The melted emulsion is delivered from the apparatus by a pump 7.
Patent GB-1220133-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B31/00
Filed: 1968-01-17
Abstract: 1,220,133. Refrigerating. DUNHAM-BUSH Inc. 17 Jan., 1968 [27 Jan., 1967], No. 46999/70. Heading F4H. The subject-matter is identical with parent Specification 1,220,131, but the claims differ.
Patent GB-1267370-A (GB)
Title: Phenolic resin binder composition for friction elements
Inventor: EVANS EDWARD MICHAEL
IPC: F16D69/02
Filed: 1968-10-04
Abstract: 1,267,370. Phenolic resin compositions. BP CHEMICALS (U.K.) Ltd. 26 Sept., 1969 [4 Oct., 1968], No. 47091/68. Heading C3R. A binder composition for use in preparing friction elements comprises 5-95% dry weight of a phenolic resin and 95-5% of an alkali metal silicate and an activating precipitant for the silicate. The phenolic resin may be a phenol-formaldehyde novolak or resole. Where a resole is used, hexamethylene tetramine is added as curing agent. The silicate may be sodium silicate. The precipitant may be ammonium chloride, ammonium dihydrogen phosphate, ammonium phosphate, aluminium oxide, hydrate alumina, aluminium sulphate, boric acid, calcium hydroxide, ferric chloride, hydrochloric acid, zinc chloride, sodium bicarbonate or stearic-acid-treated Portland cement. The friction element composition may also comprise asbestos, barytes, silica and water or methanol. It may be made into disc brake pads.
Patent GB-1023878-A (GB)
Title: Production of alkylene oxides
IPC: C07D303/04
Filed: 1963-11-29
Abstract: Olefin oxides are produced by passing a stream of gas containing molecular oxygen through a liquid medium containing an organic solvent for the olefin and an oxidation catalyst soluble in the solvent, the solvent containing at least one component which is at least partially water-miscible, passing a mono-olefin into the liquid medium to react with the oxygen-containing gas, withdrawing liquid from the resulting reaction mixture, and recovering olefin oxide, other reaction products, unreacted olefin and solvent therefrom. Suitable catalysts are, for example, cobalt and manganese compounds. Suitable organic solvents are, for example, benzene, monochlorobenzene, dichlorobenzene and nitrobenzene and suitable partially water-miscible solvents are, for example, acetone, methyl ethyl ketone, tertiary butyl alcohol and ethyl acetate.  Examples are given of the oxidation of propylene and butene.
Patent GB-1519269-A (GB)
Title: Vehicle closure panel mounting means
IPC: E05D11/10
Filed: 1976-11-12
Abstract: 1519269 Hinges CATERPILLAR TRACTOR CO 12 Nov 1976 [8 April 1976] 47262/76 Heading E2F [Also in Division B7] A hinge 13, for detachably mounting a closure panel in a vehicle housing access opening, comprises separable male and female parts 22, 17. The female part has a guide portion 20 to facilitate engagement of the parts.
Patent GB-1022144-A (GB)
Title: Device for the continuous manufacture of blocks of compressed feed material
IPC: A23P1/12
Filed: 1962-12-17
Abstract: 1,022,144. Moulding animal foodstuffs. CONSTANTFLO MACHINERY CO. Inc. Dec. 17, 1962 [Jan. 11, 1962], No. 47451/62. Heading B5A. [Also in Division A2] In apparatus for preparing blocks of vegetable matter animal foodstuffs the desired mixture is introduced into the hopper 37, Fig. 5, from which it is fed by variable pitch conveyer screw devices 38, 39 to a screw conveyer member which extrudes the material through a two-part die 51 on which thermostatically controlled heating element 58 are located. The die is slotted at 63, Fig. 7, to provide resiliency in the side walls. The shaft 46 of the extruding screw 41 supports a conically tapered cone member 67, 66, 68, the part 68 being hollow with orifices 72. From the die the material passes on to a table 82, Fig. 6, and when its front end actuates a trigger mechanism the material is held by gripping members and a rotary saw severs the block. The severed block drops on to rollers 91 and passes to a receiving station. The central bore in the block produced by the core 66 allows stacking of a series of blocks on a vertical or horizontal rod.
Patent GB-1314648-A (GB)
Title: Method for manufacturing a semiconductor photosensitive device
IPC: H01L27/00
Filed: 1971-10-12
Abstract: 1314648 Semi-conductor devices; image pick-up tubes TOKYO SHIBAURA ELECTRIC CO Ltd 12 Oct 1971 [15 Oct 1970] 47464/71 Headings H1D and H1K A method of forming a photosensitive device comprises growing an epitaxial layer on a Si  substrate of lower resistivity, forming a plurality of PN junctions in the epitaxial layer, masking the peripheral portion of the substrate, and etching with a solution of HF, HNO 3  and CH 3 COOH which selectively etches low-resistivity Si. A camera tube target is produced by growing a high resistivity epitaxial layer 12 doped with P on a low resistivity N<SP>+</SP> type Si substrate 11, forming an oxide layer 13 by thermal oxidation or by decomposition on the epitaxial layer, opening windows in the oxide and diffusing-in B to form a mosaic of P type regions 15. The upper face of the wafer is secured to a support plate (17) of quartz or fluorine containing resin by a layer (18) of wax and the peripheral portion of the lower face is also masked with wax (19). The wafer is then etched in a 1 : 3 : 8 solution of HF, HNO 3  and CH 3 COOH to remove the exposed centralportion of the N<SP>+</SP> type substrate, the etching automatically ceasing when the high resistivity epitaxial layer is reached. The supporting plate (17) and wax layers (18, 19) are removed and an electrode 20 is applied to the remaining part of the substrate 11 which acts as a support and electrical connection for the thin high resistivity layer 12. NaN 3  or H 2 O 2  may be added to the etchant to remove excess quantities of NHO 2  which may be formed.
Patent GB-1030619-A (GB)
Title: A process for the production of piles
IPC: E02D5/46
Filed: 1963-12-03
Abstract: 1,030,619. Concrete piles. ENTERPRISES H. COURBOT. Dec. 3, 1963 [Dec. 3, 1962; July 15, 1963; Aug. 23, 1963], No. 47794/63. Heading E1H. A process for the production of piles comprises forming a casing from hollow -tube portions whichare adhesively secured end-toend and then filled, the length of the casing being increased as the driving of the pile progresses. The casing is made from a number of prefabricated tubes e.g. of concrete or metal which are bonded together by a synthetic adhesive having good mechanical properties. After the casing has penetrated to the required depth it is filled with concrete 4 which may be reinforced. For penetration a mandrel (Fig. 4, not shown) is used inside the casing, a helmet being disposed at the upper end of the mandrel for a better distribution of the forces applied during the driving. An expandible mandrel (Fig. 12, not shown) may be used. Some of the hollow tube portions may have lateral orifices, each orifice being equipped with a ball-type valve (Fig. 8, not shown) which prevents soil entering the casing but allows concrete passed into the casing to flow through the orifices into the surrounding soil. In an embodiment illustrated in (Fig. 13, not shown) drilling is effected by means of an Archimedean screw.
Patent GB-1534190-A (GB)
Title: Container for storing two products separately and dispensing a mixture thereof and a cover therefor
IPC: B65D51/28
Filed: 1976-11-17
Abstract: 1534190 Compartmented bottles; dispensing closures L'OREAL 17 Nov 1976 [17 Nov 1975] 47956/76 Headings B8D and B8T A plastics cap assembly for attachment to a plastics bottle and for holding a substance to be mixed with a liquid in the bottle comprises a cap having a spout 8, which defines a chamber 5 holding the substance and which is connected to a cap skirt 6 by a thin deformable wall 7, and a plug 3 which engages the skirt and extends into the space bounded by the wall 7 such that lateral swinging of the spount causes deformation of the wall to allow the lower edge of the spout to engage and eject the plug thus permitting mixing of the cap and bottle contents. An integral sealing tab 10 may then be torn from the upper spout end and the mixture dispensed. The plug has a stepped side wall comprising a lower larger diameter portion having a rib 16 making snap-fitting engagement with a corresponding rib on the skirt and an upper smaller diameter portion having sealing ribs 18 engaging the skirt. A second skirt 11 surrounds the first skirt and defines therewith an annular groove for snap-reception of the bottle neck.
Patent GB-1531017-A (GB)
Title: Cranes
IPC: B66C23/86
Filed: 1975-11-24
Abstract: 1531017 Self loading vehicle crane AT VAN HUET 24 Nov 1975 [27 Nov 1974] 48148/75 Heading B8E A self loading vehicle has a crane movable along its load platform 16 by drive wheels 15 while guided by runners 17. The crane comprises a bridge 1, fixed pillars 2 and columns 3 extendable by a ram 12 supporting an upper part 4 having a live ring 5 with toothing 63, Fig. 6, engaged by a pinion to rotate a top portion 6 with unlimited angular movement. The top 6 eccentrically mounts a loading arm 7 on which runs a lifting trolley having a lifting drum 10. The unlimited swinging of the arm 7 and the movability of the crane on the vehicle allows operation over a wide uninterrupted area around the vehicle. The various movements are effected by hydraulic devices supplied from a tank 20 by a combustion engine 19 and pump 21. Oil for the various hydraulic operators on the top portion 6 is supplied by a distributor head 31 and rotor 35 while electrical control and supply is effected by an insulated plate 55 having circular path contacts 59 engageable by devices 58.
Patent GB-1128086-A (GB)
Title: Improvements relating to hydroxy-containing phosphonates and polyurethanes
Inventor: FRIEDMAN LESTER
IPC: C07F9/40
Filed: 1966-10-27
Abstract: 1,128,086. Hydroxy-containing phosphonate derivatives. PURE CHEMICALS Ltd. 27 Oct., 1966, No. 48234/66. Heading C2C. [Also in Division C3] Novel phosphonates are prepared by condensing a bis-(oxyalkylated polyhydric alcohol) hydrogen phosphite, or polymer thereof, with an aldehyde or ketone and a primary or secondary amine. Illustrative products are those of the formulµ where R<SP>1</SP>O is the residue of an oxyalkylated polyhydric alcohol having 2 to 8 hydroxyl groups from which one of the alcoholic hydrogen atoms is removed, R<SP>2</SP> is hydrogen, alkyl, alkenyl, furyl or aryl, R<SP>3</SP> is alkyl, aryl or hydroxyalkyl, R<SP>4</SP> is hydrogen, alkyl, aryl or hydroxyalkyl, R<SP>5</SP> is hydrogen, alkyl, aryl or hydroxyalkyl, n is 0 or an integer, x is 0 or 1, K<SP>6</SP> is C 1-4  alkylene, m is an integer of at least 1. The phosphonate products are useful as hydraulic fluids, chelating agents, amine catalysts, reactants in epoxy systems and as starting materials for the preparation of polyesters and polyurethanes.