baber/WOPTO huggingface dataset:
Patent GB-1506699-A (GB)
Title: Process for charging a pressure reactor for gasifying coa
IPC: C10J3/30
Filed: 1976-10-25
Abstract: 1506699 Charging pressure gasifiers METALLGES AG 25 Oct 1976 [26 Feb 1976] 44142/76 Heading F4B A gasification reactor for gasifying coal under pressure is charged through a lock chamber to which carbon dioxide or nitrogen is fed as the pressurizing gas. Coal from a hopper 1 is fed to the lock chamber 3 through an upper valve 2, and the chamber 3 is pressurized to a greater pressure than that of the gasifier by carbon dioxide or nitrogen from a line 7. When the valve 4 is opened to allow coal to enter the gasifier, the pressure is maintained in the lock chamber through a by-pass line 7a. To reduce the pressure in the lock chamber 3 to refill it, the carbon dioxide or nitrogen are discharged direct to atmosphere. Carbon dioxide or nitrogen may be fed to the gasifier to maintain its pressure as the coal level falls, and the pressurizing gas may be heated by waste heat from the gasifier or purification processes. Carbon dioxide may be obtained from the purification processes, and nitrogen may be a by-product from the production of gasifying oxygen.
Patent GB-1062105-A (GB)
Title: Process for the production of moulded articles from high molecular weight thermoplastic polycarbonates
IPC: C08G64/04
Filed: 1964-10-29
Abstract: In the production of moulded articles from thermoplastic polycarbonates based on dihydric phenols, there are used (a) copolycarbonates or (b) mixtures of homopolycarbonates and/or copolycarbonates, wherein (a) and (b) contain from 0.5 to 10 mol. per cent of the residues of b -alkenyl-substituted dihydric phenols based on the total content of the residues of dihydroxy compounds. Preferred substituted dihydric phenols are the monoallyl, diallyl, monomethallyl and dimethallyl substituted hydroquinone, 4:41 - dihydroxydiphenyl or the bis - (4 - phenylol) - alkanes, -ethers, -sulphides, -sulphoxides or sulphones.  The other dihydroxy component of the polycarbonates may be any of the usual dihydric phenols or mixtures thereof with dihydric alcohols.  Examples describe the production of mouldings from a copolycarbonate of bisphenol A and 3,31-diallyl-bisphenol A or a mixture of such a copolycarbonate with a homopolycarbonate of bisphenol A.
Patent GB-1396704-A (GB)
Title: Noise suppression system for hf ssb radio telephones
IPC: H04B1/10
Filed: 1971-09-23
Abstract: 1396704 Radio signalling HATFIELD INSTRUMENTS Ltd 22 Sept 1972 [23 Sept 1971] 44369/71 Heading H4L In a suppressed carrier communication system means are provided for transmitting a tone signal of predetermined duration at the start of the intelligence transmission and thereafter further interrupted tone signals of short duration at regular intervals during the continuation of the intelligence transmission. This enables the receiver in the system to be muted in the absence of a transmitted signal. Transmitter.-When a press-to-talk switch is operated, signals from microphone 10, Fig. 1, are supplied via contact SIA and adding circuit 11 to a single sideband modulator 12. fed by oscillator 13. Closure of contacts SIB, via an integrator-differentiator 14 (which eliminates switch contact noise) starts a monostable 15 which controls a tone generator 16 whereby a pulse of tone of 0À5 secs. duration is fed to the adding circuit 11 for transmission. Switch SIB also starts a multivibrator 17 whereby generator 16 produces short pulses of tone of about 120 m.secs. duration which are transmitted via adder 11. Receiver.-Receiving and demodulating means 20, Fig. 2, are in continuous operation and the received audio signal is supplied via muting means 22 to the transducer 23. The signal from 20 is also limited at 24, the tone pulses being selected at 25, rectified at 26, integrated at 27 and supplied to a circuit 28 which when a predetermined threshold is exceeded, operates a monostable 29 which triggers a further monostable 30 with a period of 7À5 sees. Operation of monostable 30 unmutes the circuit 22 and the monostable 30 will remain operated for 7À5 sees. if no further short tone bursts are received, but will be re-triggered each time a burst is received. Selective calling.-Tones of differing frequency may be transmitted, each receiver responding only to one of the tones.
Patent GB-1004875-A (GB)
Title: Manipulating rod-like articles in the production of tobacco articles
IPC: A24C5/47
Filed: 1961-12-14
Abstract: 1,004,875. Cigarette making machines. K. KÍRBER. Dec. 14, 1961 [Dec. 27, 1960], No. 44787/61. Heading A2C. To form aligned parallel rows of cigarettes leaving a continuous rod cigarettemaking machine, successive cigarettes 2 are supplied to successive grooves 23 of a drum 11, alternately against stops 24 and 25, to form parallel staggered rows of cigarettes and transferred to conveyers 12 and 13 of different peripheral lengths to a delivery point IV when the rows are in axial alignment. Drums of different diameters or endless conveyers of different lengths may be used to effect the axial alignment of the cigarette lengths. After alignment double length filter tips are inserted between the cigarette lengths, joined to the cigarettes and the double filter tip cut into two. Entry guide surfaces 41 are provided on the drum 11 to assist in the delivery of cigarette lengths to the drum. Guides, as 56, are provided over the whole conveyance path. Specifications 731,861, 787,155, 818,440, 963,201 and 963,202 are referred to.
Patent GB-1394099-A (GB)
Title: 2,5-dioxoimidazolidines as selective herbicides
IPC: A01N43/824
Filed: 1972-09-29
Abstract: 1394099 Substituted 1-thiadiazolyl-2,5-dioxoimidazolidines CIBA-GEIGY AG 29 Sept 1972 [30 Sept 1971] 45156/72 Headings C2C and C2P Novel compounds of Formula I wherein A represents a 1,2,4-thiadiazol-5-yl or 1,3,4 - thiadiazol - 5 - yl group substituted at the 3- or 2-position, respectively, by a haloalkyl, alkylthio, alkylsulphinyl, alkylsulphonyl or dialkylsulphamoyl group; R represents a C 1-4  alkyl group; and R 1  represents a chlorine, bromine or iodine atom, the group -OH, or the group -O-CO-Z in which Z represents an alkylamino, dialkylamino, alkyl, haloalkyl or alkylthio group; or R 1  represents the group -PO-(O-alkyl) 2  or -Y 1 -PY 2 -(Y 3 -alkyl) 2  in which Y 1 , Y 2  and Y 3 , which may be the same or different, each represents an oxygen or sulphur atom, are prepared by reacting a urea of formula with glyoxylic acid in an organic solvent and, if required, converting the compound thus obtained (R 1  = OH) into other compounds of Formula I by conventional techniques, e.g. reaction with a thionyl halide to produce those compounds wherein R 1  is halogen. These 4- halogeno-2,5-dioxo-imidazolidines may then be reacted with compounds of formula HR 1  or MR 1  (M = alkali metal) or with a trialkylphosphite. Alternatively, the 4-hydroxy-2,5- dioxo-imidazolidines may be reacted directly with alkyl isocyanates, dialkylcarbamic acid halides, optionally halo-substituted fatty acid halides or anhydrides or chlorocarbonic acid thioalkyl esters. The examples describe the preparation of specific compounds of Formula I which possess herbicidal properties.
Patent GB-1166605-A (GB)
Title: Improvements in and relating to a Hydraulically Operated Valve
Inventor: DIXON MARGARET GULLAND
IPC: F16K31/14
Filed: 1966-10-10
Abstract: 1,166,605. Valves. M. G. DIXON (H. HANSENS EFTF A.S.). 10 Oct., 1966, No. 45192/66. Heading F2V. A valve may be operated by a permanently connected hydraulic motor 16 or by an axially stationary hand wheel 12, the supply to the motor being controlled by a by-pass valve 20. The hand wheel is located against axial movement and is in driving engagement with a gear 13 meshing with a pinion 15 on the motor which may be a gear or vane piston type. Instead of a rising stem 9, a screw-threaded connection with the valve itself may be used, the thread pitch being self-locking to prevent accidental movement. The valve may also be replaced by a butterfly valve actuated by a worm gear with the motor and hand wheel mounted at opposite ends of the worm. The valve may be used in a gas works, oil refinery or chemical plant or as a bulkhead or sea valve in a ship.
Patent GB-1198837-A (GB)
Title: Plant Cultivating Means
Inventor: GOLDRING JOHN ELMER
IPC: A01G31/00
Filed: 1967-10-05
Abstract: 1,198,837. Cultivating plants. JEGGO Inc. 5 Oct., 1967, No. 45340/67. Heading A1E. A means by which plants can be grown from seeds or seedlings, without the use of the ground or other natural supplies of nutrient or water, consists of a flexible envelope 12 of water-impermeable material (e.g. polyethylene or plastics-coated Kraft paper) containing solid plant nutrient material 13 and a conduit 17 for conveying water to the plant nutrient at each location 15 therein at which a seed 14 or seedling is to grow. At each such location the envelope is so formed - e.g. has a preformed aperture 18 - that a plant grown from the seed or seedling can project e.g. its foliage from the envelope whilst its root system remains within it. Elongate tubular envelopes of the above-described form may be anchored to the ground by hook-like clamps (Figs 2 and 3 not shown) or may be supported on a rack (Fig. 7, not shown). Figs 4 to 6, 8 and 10 to 15 (not shown) depict alternative forms of envelope, in some of which each plant-emergence aperture in the envelope is surmounted, as in Fig. 9, by a transparent bag 46 within which the plant remains throughout its growth cycle. Plants are intended to remain in their envelopes until ready for harvest, after which the used envelopes may be comminuted and employed as part of the plant nutrient filling for a new set of envelopes.
Patent GB-1523628-A (GB)
Title: Vacuum interrupter contacts
IPC: H01H33/66
Filed: 1975-10-31
Abstract: 1523628 Vacuum switch contact WESTINGHOUSE ELECTRIC CORP 31 Oct 1975 [19 Dec 1974] 45448/75 Heading H1N A vacuum switch contact comprises a flat base 64, a circular side wall portion 19 extending from the base and defining a right circular hollow cylinder and a circular insert 60 disposed within this side wall portion and physically separated but electrically connected to the base portion, the insert having spiral slots 62 formed therein to provide axial magnetic fields to reduce arcing. Further slots are formed in the side wall portions of the contact also to produce arc controlling fields. When such contacts are arranged in co-operating pairs in a vacuum switch the spirals may be arranged to spiral in opposite directions or in the same direction in respective contacts of a pair. The inserts 60 may be made of the same material as the remainder of the contact. An inwardly extending lip 21 may be formed on the contacting surface of the contact. Two configurations of spiral are disclosed.
Patent GB-1531627-A (GB)
Title: Flat shaded pole alternating current motor
IPC: H02K17/10
Filed: 1976-11-02
Abstract: 1531627 Induction motors STANDARD TELEPHONES & CABLES Ltd 2 Nov 1976 45481/76 Heading H2A A single-phase, shaded-pole induction motor with a planar air-gap has a stator formed from a U-shaped armature 11 with coils 12, and a conductive (e.g. aluminium) shading disc 13 with two arcuate magnetic poles such as 18 provided as inserts therein, each with smaller, shaded-pole portions defined by a channel (17), Fig. 3 (not shown); and a disc rotor 15 of magnetic material with a perforate pattern 43 of conductors on its inner face. The stator disc 13 has cut-outs 34 preventing eddy-currents circulating around the main poles. The pattern 43 is formed by electroplating or stamping. Pump impeller blades are provided on the rotor.
Patent GB-1519604-A (GB)
Title: Jet engine cooled varable area exhaust nozzle
IPC: F02K1/12
Filed: 1975-10-31
Abstract: 1519604 Jet propulsion nozzles; variable area UNITED TECHNOLOGIES CORP 31 Oct 1975 [31 Oct 1974] 45530/75 Heading F1J The invention relates to a variable area propulsion nozzle for a gas turbine jet engine the nozzle comprising a series of pivotally-mounted flap members there being means for providing a flow of cooling fluid to the flap members. The assembly shown in Figs. 2 and 3 comprises a jet pipe formed by an outer casing 12 and an inner wall 14 connected together by a frusto-conical wall 16; the assembly comprises also an inner liner 22 which defines with the inner wall 14 a passage for flow of cooling air to the propulsion nozzle. The nozzle comprises a series of convergent members 30 pivotally mounted on brackets 32 secured to the outer casing 12 and movable by actuators 40 acting through rods 39, a unison ring 36, links 38 and arms 34. A series of divergent flap members 60 are pivotally secured at the downstream ends of the flap members 30, and outer flap members 70 pivotally mounted at the downstream end of the outer casing 12 are pivotally connected to the downstream ends of the divergent flaps. A series of flaps 50 are pivotally connected to the upstream ends of the convergent flap members 30, the upstream ends 51 of the flaps 50 being axially and angularly movable within a guide 53. Each convergent flap member 30 comprises an inner member 44 and an outer member 48, the two members being connected by a central axial web 46, the space between the members 44, 48 forming a passage for flow of cooling air as indicated by arrows on Fig. 2; the downstream end 52 of the inner member 44 is curved so that the discharging cooling air is caused to flow along the divergent flap 60. The gap between each pair of adjacent convergent flap members 30 is closed by a sealing flap member 77 which comprises an inner member 54 and an outer member 58 the two members being connected by a central axial web 56, the members 54, 58 of the sealing flap slidably engaging the members 44, 48 of the convergent flap members 30 as shown in Fig. 3. Two ribs 82 are formed transversely across the inner surface of the outer member 58, the ribs being engaged by pairs of projections 90 extending outwardly from the outer surfaces of the two adjacent inner members 44 of the convergent flap members; this arrangement prevents relative axial movement of the flap members 30 and seal flap members 77 while allowing relative circumferential movement. An alternative arrangement is described with reference to Fig. 5 (not shown).
Patent GB-1162418-A (GB)
Title: Improvements in or relating to Charge-Discharge Devices for Vertical-Channel Nuclear Reactors
Inventor: FARFALETTI-CASALI FLAVIANO
IPC: G21C19/20
Filed: 1967-10-06
Abstract: 1,162,418. Fuelling reactors. EUROPEAN ATOMIC ENERGY COMMUNITY. 6 Oct., 1967 [6 Oct., 1966], No. 45899/67. Heading G6C. Each fuel channel 3 of a reactor core 1 is connected to the coolant system through a pipe 4 and is extended beyond the pipe connecion by a curved fuel-element guide tube 6 passing with a clearance 10 through a steel sheath 9 in the shielding 2. The lower ends of the tubes 6 have valves 11 and are located in rows in a ring member 8 encircling the bottom part of the shielding 2. A fuel-element charge machine 14 is rockable about a pivot 17 on a truck 16 running on a circular trackway 15 whereby the nose piece 20, which is telescopic, may be connected to a selected tube 6, the fuel elements being inserted or withdrawn by a chain driven by the machine so as to extend through the tube 6. Drain tubes 12 enable a restricted flow of coolant to be maintained in the tubes 6.
Patent GB-1490107-A (GB)
Title: Automatic detection of proteins
IPC: G01N21/64
Filed: 1974-10-24
Abstract: 1490107 Automatic determination of proteins F HOFFMANN-LA ROCHE & CO AG 24 Oct 1974 [24 Oct 1973 16 May 1974] 46137/74 Heading G1B [Also in Division B8] A device for the automatic determination of proteins comprises in combination sample value means 12 having a plurality of operating modes and operatively connected to an inlet means for a protein-containing stream, for example the eluant from chromotography column 10, outlet means operatively connected to the sample valve means so that in one operating mode of the valve means the protein-containing stream flows through the sample valve means to the outlet means towards for example fraction collector means 13, timer means 23 arranged for transmission of an electrical signal to the valve means to index it to another operating mode in which a portion of the proteincontaining stream flows from the sample valve means through line 15 as a sample stream for analysis, and fluorescence detection system means operatively connected to the sample valve means and comprising buffer inlet means 16, fluorogen compound inlet means 17, fluorometer means 18 and record/display means 19. The timer means 23 may be operatively connected to the fraction collector means, the arrangement being such that the sample valve means is changed from the one to the other operating mode after a predetermined time interval after indexing of the fraction collector, so that the middle portion of the sample is diverted to the fluorometer for analysis. Use of a three-disc valve means is described (see Group B8); each disc has three through passages and one set of through passages is used for a wash liquid stream in each position of the valve.
Patent GB-1283916-A (GB)
Title: Improvements relating to electro-deposition
Inventor: WILLS KENNETH GRAHAM
IPC: C25D5/54
Filed: 1968-09-28
Abstract: 1283916 Electro-etching and plating PLESSEY CO Ltd 29 Sept 1969 [28 Sept 1968] 46174/68 Heading C7B A carbon fibre-reinforced (e. g. resin) structure for a waveguide or radar aerial dish is metal plated by electro-etching it connected as anode in an etchant e.g. H 2 SO 4  solution to roughen the surface, then electro-depositing a metal e.g. Ni or Cu on to the electro-etched structure connected as cathode in a metal plating bath. Prior to etching, the structure may be immersed in an alkaline degreaser.
Patent GB-920744-A (GB)
Title: Feeding and folding equipment for box blanks
IPC: B31B50/62
Filed: 1959-06-23
Abstract: 920,744. Feeding sheets. UNIVERSAL CORRUGATED BOX MACHINERY CORPORATION. June 23, 1959 [July 1, 1958], No. 46519/61. Divided out of 920,745. Class 100 (1).  A device for feeding the lowermost blank from a stack S of blanks comprises a perforated conveyer belt 35 on which the lowermost blank is held by suction and guide means 68<SP>1</SP> at the outlet end of the conveyer beneath which only one blank at a time can pass. The belt is carried by rollers 32, 33 and idler rollers 36, suction being maintained in a chamber 37 and a duct 38 by a suction unit 39 (Fig. 2). The guide means 68<SP>1</SP> comprises a plurality of blocks 69 adjustably positioned along a rod 67 extending above and transversely of the belt. A screw 84 permits adjustment of the gap between the lower end of the guide and the belt. The right-hand ends of the blanks are held by adjustable supports 52 spaced transversely of the belt along a shaft 47. Rotation of a hand wheel on the shaft 47 causes the supports to move longitudinally of the belt by means of pinions 46 engaging a rack 41. Each support comprises a number of rollers 63 mounted on shafts 62. The supports 52 at each end of the shaft 47 have guide cheeks to engage the outer faces of the stack and in the case of long blanks a central support 52 carries a fin which engages a slot in, and so aligns, the blanks.
Patent GB-1191605-A (GB)
Title: Block Copolymers and their Preparation.
IPC: C08F297/04
Filed: 1968-03-18
Abstract: 1,191,605. Alpha methyl styrene block copolymers. POLYMER CORP. Ltd. 18 March, 1968 [1 April, 1967; 25 Jan., 1968], No. 46588/69. Divided out of 1,189,767. Heading C3P. A block copolymer of the formula A-B-A, where each A represents a polyalphamethyl styrene block and B represents an elastomeric block, the block copolymer having an intrinsic viscosity in toluene at 30 C. of 0À25 to 0À5 and an alphanaphthylstyrene content of 8 to 45 weight per cent, may be obtained by (i) sequential polymerization (a) in three stages using a monofunctional initiator or (b) in two stages using a difunctional initiator or (ii) polymerizing the alphamethylstyrene and half the desired elastomer-forming monomer using a monofunctional initiator and then coupling with difunctional coupling agent. The polymerization of the alphamethylstyrene is in each case carried out in the presence of a polar additive such as dimethoxyethane, tetrahydrofuran, diethylene glycol dimethyl ether, hexamethylphosphoramide or bis-(2-ethoxyethyl)-ether. In the examples alphamethylstyrene-b-butadieneb-alpha methyl styrene block copolymers are obtained by monofunctional initiation with nbutyl lithium, and coupling with COS, or by difunctional initiation with dilithio-diisoprene, using dimethoxy ethane as polar additive in each case.
Patent GB-1411112-A (GB)
Title: Injection moulding control
IPC: B29C37/00
Filed: 1972-10-11
Abstract: 1411112 Injection-moulding machine control HUNKAR INSTRUMENT DEVELOPMENT LABORATORIES Inc 11 Oct 1972 [1 Nov 1971] 46980/72 Heading B5A [Also in Division G3] The ram of an injection-moulding machine is controlled by apparatus incorporating a programmable function generator providing ram velocity signals, correlated to ram position, which determine operation of an hydraulic servo-mechanism energizing a ram drive, the servo-mechanism being rendered ineffective when mould cavity pressure reaches a set value as determined by a cavity transducer. As shown, an injection-moulding machine 10 comprises a rotatable and axially movable screw 16 which plasticizes and injects polyethylene or polyvinyl chloride from a hopper 21 into a mould-cavity 24. The screw 16 is rotated by a motor 28 and traversed by hydraulic pressure in a piston assembly 27. The cavity pressure is sensed by a transducer 72 and the position of the screw by a transducer 71. The machine 10 is operated through a moulding cycle through a programmer 60 wherein a velocity to screw position programme is set up on a patch-board 75 and set parameters such as cavity pressure, cushion (as percentage of screw travel) and hold time on thumb-wheels 85, 86, 91. At the commencement of the cycle the screw is rotated and urged forwardly under a low-pressure established by a command to a solenoid valve 54 which also determines the energization of the motor 28; the material being plasticized by the heat generated by compression and that applied to the walls 14 of the machine thereby causing the screw to retract. The injection stroke is then initiated by a command from the programmer by actuation of a servovalve 34 applying a high pressure to the assembly 27. When the mould cavity is filled and the pressure sensed by the transducer 72 reaches a programmed value a command to a solenoid 46 holds this pressure and after a programmed delay the cooled moulded object is ejected by the separation of the mould parts 25, 26. The programmer employs logic elements and the actual velocity is derived from the position transducer by differentiation. The linear dimensions of a cushion, limiting the travel of the screw, is determined from the position transducer and controls the change from high to holding pressure in the assembly 27.
Patent GB-1007401-A (GB)
Title: Containers for dispensing liquids under gaseous pressure
IPC: B29C49/04
Filed: 1963-11-28
Abstract: 1,007,401. Delivering measured quantities of liquid. RHONE-POULENC S.A. Nov. 28, 1963 [Nov. 29, 1962; June 28, 1963; Aug. 30, 1963; Oct. 30, 1963], No. 47084/63. Heading B8N. [Also in Division F1] In a metering valve for an aerosol container (see Division F1), the capacity of the valve chamber 2c, Fig. 5, is adjustable by replaceable sleeves 15. When valve stem 6 is depressed, valve aperture 6g is closed and aperture 6b opened to discharge chamber 2c, which is recharged via aperture 6g on release of stem 6. In the Fig. 6 embodiment, projections 7a on the valve housing co-operate with a skirt on button 8 so that in the button position shown, depression of button 8 is limited for continuous discharge to take place through chamber 2c and aperture 6b. On rotation of button 8, the button skirt clears projections 7a such that full depression of the valve can take place, whereby the bottom of chamber 2c is closed and only its contents discharged. In the Fig. 9 embodiment, depression of the valve stem closes aperture 6b and opens groove 6h to fill chamber 2c, release of the valve then opening aperture 6b to discharge chamber 2c.