baber/WOPTO huggingface dataset:
Patent GB-1434778-A (GB)
Title: Process for the preparation of catalysts suitable for the  homopolymerization and copolymerization of olefins
IPC: C08F4/60
Filed: 1973-12-18
Abstract: 1434778 Supported olefin polymerization catalyst preparation SOC ITALIANA RESINE SIR SpA 18 Dec 1973 [22 Dec 1972] 58615/73 Heading C3P Olefins are polymerized in the presence of a catalyst prepared by (a) activating a thiosulphate of an element of Group II at 350‹ to 700‹ C. for 10 to 30 hours in an inert atmosphere, (b) treating the solid granular-product with a halogen-containing transition metal compound in the liquid (including dissolved) state at 20‹ to 300‹ C. for not less than 30 minutes in quantities such that the granular product is present in amounts of 5 to 20% of the transition metal compound, and (c) contacting the product of (b) with an organometallic or hydride compound of Groups Ia, IIb or IIIb. In examples, MgS 2 O 3 .6H 2 O and CaS 2 O 3 .6H 2 O of specified particle sizes (e.g. such as may be obtained by atomization of an aqueous solution of the salt in a nitrogen stream-Example 8) are activated, treated with liquid TiCl 4 , washed with heptane in some cases, and, mixed with Et 3 Al or EtgAlCl, used to polymerize ethylene, ethylene/propylene or ethylene/butene-1 in heptane, in some cases in the presence of hydrogen, and producing a regular micro-spheroidal polymer in Example 8.
Patent GB-1360364-A (GB)
Title: Transmission couplers
IPC: H04M1/00
Filed: 1972-12-21
Abstract: 1360364 Suppressing longitudinal currents WESTERN ELECTRIC CO Inc 21 Dec 1972 [27 Dec 1971] 59013/72 Heading H4R A coupling transformer, particularly between grounded terminal equipment and a telephone line pair, has two series-aiding primary sections 72A, 72B and two series-aiding secondary sections 73A, 73B on one core 74, and two seriesopposed coils 77A, 77B on a second core 78, the coils 77A, 77B connecting associated sections 72A, 73A and 72B, 73B in series and the inner ends of the secondary sections 73A, 73B being coupled to a reference point. The coupling may be by capacitors 75A, 75B and the primary and secondary sections series-opposed. The transformer provides a balanced output 51, 52 while suppressing longitudinal currents, permits D.C. and low frequency signal handling and has low insertion loss. Equivalent A.C. and D.C. circuits are discussed.
Patent GB-1161463-A (GB)
Title: Fuel Injection Distributor and Regulator for Internal Combustion Engines
Inventor: MARKWART WALTER
IPC: F02D9/00
Filed: 1967-12-29
Abstract: 1,161,463. Regulating I. C, engines. WISSENSCHAFTLICH-TECHNISCHES ZENTRUM AUTOMOBILBAU HOHENSTEIN ERNSTTHAL VEB. Dec. 29, 1967, No.59122/67 Heading F1B. A fuel injection distributor and regulator for I. C. engines comprises upper and lower chambers 26, 9 separated by a diaphragm 10, and a rotary distributing valve 3 driven by the engine, fuel being supplied from a feed pump to an intake passage 4, and, in the distributor position shown, passing through distributor port 7 into the lower chamber 9 to move diaphragm 10 upwardly to discharge fuel from upper chamber 26 through passage 27, distributor passage 32 and a discharge passage 5 leading to a fuel injector. On rotation of distributor 3 through 180 degrees, fuel from intake passage 4 passes through passages 32 and 25 to upper chamber 26 to move diaphragm 10 downwardly and discharge fuel from chamber 9 through port 7 and passage 5. The quantity delivered is regulated by an abutment 11 engaging a cam groove 17 in a rod 16, which is moved axially by a diaphragm 19 subjected to the pressure in the engine air intake between the engine and the air admission control. An idling regulator screw 24 limits the movement of the rod 16.
Patent GB-1240801-A (GB)
Title: Pressure-relief valve
IPC: F16K17/06
Filed: 1969-12-04
Abstract: 1,240,801. Valves. ALFRED TEVES G.m.b.H. 4 Dec., 1969 [6 Dec., 1968], No. 59276/69. Heading F2V. A pressure relief valve comprises a closure member 3 operatively connected to a piston 2 by a lever 12 to control flow through an inlet 6 and outlet 7, and a pilot piston 11 movable in response to a pressure difference across the valve, against the action of an adjustable spring 20, via passages 8 and 24, to move a lever 14 about a pivot 16 and vary the position of a pivot roller 13 and the moment arm of the lever 12. The passage 8 has a choke 9. A spring 25 ensures that the valve is closed when the system is unpressurized. In operation, pressure at the inlet causes the position 11 to rotate the arm 17, and move the roller 13 until the opening force of the member 3 exceeds the closing force of the piston 2 whereupon the valve opens.
Patent GB-1448729-A (GB)
Title: Process for the production of hydroxyalkylphenyl derivatives
IPC: C07C67/347
Filed: 1973-12-27
Abstract: 1448729 Preparation of alkyl phenol derivatives CIBA GEIGY AG 27 Dec 1973 [27 Dec 1972] 59770/73 Heading C2C wherein R 1  and R 2  represent C 1  to C 6  alky groups, x is 6 to 30, y is 2 to 8 and each of z and z<SP>1</SP> are 2 to 12; are obtained by gradually adding methyl acrylate to a phenol of the formula so that the overall molar ratio of methyl acrylate and the phenol compound is at least 1 : 1 and an alcohol selected from (a) a monohydric alcohol of the formula HO(CH 2 ) x H, (b) a dihydric alcohol of the formula HO(CH 2 ) y OH, and (c) a thioether of the formula HO(CH 2 ) z -S-(CH 2 ) z1 OH, said reaction being carried out in the presence of from 0À001 to 10 mole per cent based on the phenol of Formula IV of an alkaline catalyst selected from alkali metal hydrides, alkali metal alkoxides of the formula wherein M is an alkali metal ion, X 1 , X 2  and X 3  represent H, alkyl, aryl or aralkyl groups having up to 12 C atoms; and alkali metal amides of the formula wherein X 4  and X 5  represent H, alkyl or aryl groups having up to 12 C atoms. The products are useful in the stabilization of organic materials normally subject to oxidative deterioration.
Patent GB-1339269-A (GB)
Title: Use of n-methylolamino phosphazene compounds as crease-proofing and/or flame retardant agents
IPC: C07F9/6581
Filed: 1970-12-18
Abstract: 1339269 Flame and crease proofiing MOLECULON RESEARCH CORP 18 Dec 1970 [18 Dec 1969] 60379/70 Heading D1P [Also in Division C2] Crease resistant and/or flame retardant properties are imparted to fibrous or sheet polymeric material by treating the polymeric material, in the presence of an acid catalyst at an elevated temperature with a compound of formula I  where n is 0 or an integer from 1 to (2q-1), q is 3 or 4, each R, which may be the same or different, is a monovalent organic radical other than -NR 1 CH 2 OH, a halogen atom or an amino group, each R 1 , which may be the same or different is hydrogen or a monovalent organic group, or any two R and/or R 1  symbols together represent a divalent organic group which, together with the phosphorus atom or atoms to which it is attached, forms a ring containing 5 or more atoms; or with a dimer or other oligomer obtained when R or R 1  from one such compound and R or R 1  from another such compound together represent a divalent organic radical. The polymeric material is preferably treated with the compound of formula I at 40 to 200C and at a pH of 4.0 to 7.0. The polymeric material may be a cellulosic material, such as cotton, fabric, wood and paper, a polyamide, a polycarbonate, a polyvinyl halide, a vinyl halide copolymer, polyvinylidene chloride, a vinylidene chloride copolymer, an acrylic ester polymer, an organic silicone polymer, a polyurethane, a polyvinyl formal or butyral, a methacrylic or styrene polymer, a polyolefin or an acrylonitrile polymer. The acid catalyst may be an organic or inorganic acid or a zinc or magnesium salt of such an acid. Where the compound of formula I contains an ethylenically-unsaturated group, the polymeric material may be crosslinked by irradiation with ionising radiation or by treatment with chemical free-radical initiators.
Patent GB-1370089-A (GB)
Title: Electrical testing devices
IPC: G01R19/165
Filed: 1970-12-22
Abstract: 1370089 Testing battery voltage ELECTRIC POWER STORAGE Ltd 20 Dec 1971 [22 Dec 1970] 60979/70 Heading G1U If the voltage at the terminals 14, 15 of a battery is low a small current will flow through a green lamp 17, the current being too small to illuminate the lamp but sufficient to render a transistor 11 conductive so that a red lamp 10 is illuminated, but if the battery voltage is sufficiently high a voltage threshold circuit 27 - which may be simply a Zener diodefires a thyristor 18 causing the green lamp to be fully illuminated and the red lamp to be extinguished. An input diode 16, provided to protect the circuit against incorrectly connected batteries, may be replaced by a full-wave bridge so that the circuit will operate correctly however the battery is connected.
Patent GB-664377-A (GB)
IPC: E04F15/10
Abstract: 664,377. Floor coverings. HALLGREN, K. S. Nov. 5, 1948 [Feb. 24, 1948], No. 28854/ 48. Drawings to Specification. Class 142(iv) [Also in Group V] A floor covering consists of plates of caoutchouc joined along their edges. The lower side of each plate is provided with triangular sectioned projections.
Patent GB-743807-A (GB)
Abstract: 743,807. Phase sensitive circuits. FOXBORO CO. July 16, 1953 [July 24, 1952], No. 19777/53. , Class 38 (4). [Also in Groups XXXVI; XXXVIII and XL (c)] In a measuring system wherein the unidirectional voltage of a thermocouple 2 is compared with the slider voltage of a standardized variable potentiometer 14, the unbalance voltages are converted in known manner to second harmonic voltages of the output of oscillator 48, representing the unbalance voltage in amplitude and phase sense, which after amplification by transistors 50, 52, 52A, 98 energize the paralleled primary windings of transformers 105, 106, whose secondaries are connected in series between two similarly poled half-wave rectifiers 120, 122 in a phase detector circuit supplied between the junctions of the secondaries and of the output filter condensers 138, 140 with a comparison signal from oscillator 48 through phase-shifting network 189, 190, so as to develop a unidirectional unbalance current in the control windings of magnetic amplifier transformers 134, 136 to represent the potentiometer circuit unbalance in magnitude and sense. Each magnetic amplifier transformer has two series connected opposed signal windings 142, 144 and 146, 148 of which the inner ends are connected together and the outer ends connected to the primary of a transformer 158 feeding one stator winding of a two-phase reversible induction motor 184 whose remaining stator winding is energized over a quadrature condenser 182 from the mains supply, which is also connected between the junction of windings 144, 146 and the centre tap of the primary of transformer 158. Feedback windings 162, 164 of the magnetic amplifier transformers 134, 136 are connected between the outer ends of windings 142, 148 and the junction of windings 144, 146 over similarly poled half-wave rectifiers 170, 172 and the motor winding 176 is energized with a mains frequency A.C. of amplitude and phase sense dependent on the magnitude and sense of the unbalance voltage, which is automatically rebalanced by adjustment of the potentiometer 14 over mechanical linkage 186 in response to the rotation of the motor.
Patent GB-2016851-A (GB)
Title: LORAN-C navigation apparatus
IPC: G01S5/10
Filed: 1978-10-17
Abstract: LORAN-C navigation apparatus is disclosed wherein digital circuitry and a microprocessor is used to automatically identify LORAN transmitting stations and makes standard hyperbolic navigation measurements. The equipment operator manually enters the group repetition rate into the apparatus for a LORAN-C chain covering the area within which the navigation apparatus is being operated. Initially, the apparatus searches all incoming signals until signals from a master station are received regularly at the stored group repetition rate. The apparatus then closely determines the time of arrival of signals from the secondary stations of the selected LORAN-C chain before changing to a fine search mode in which the exact time of arrival of the secondary station signals is determined; the phase code of the received signals is checked to determine if the received signal is a ground or sky wave, and a determination is made if there is a defective secondary station blink code. The time difference of arrival measurements am then output visually to be plotted in a well known manner on a LORAN-C chart to locate the position of the craft upon which the apparatus is located. <IMAGE>
Patent GB-2032411-A (GB)
Title: Preventing scale formation and corrosion in aqueous systems
IPC: C23F11/167
Filed: 1978-11-23
Abstract: Potentially scale forming or corrosive water systems are treated with a cyclic dimer of 1- hydroxyethane-1, 1 diphosphonic acid or its homologs. Dimer comprises a single 6 membered ring having the formula Figure 1 where R is an alkyl, aryl, aralkyl or aliphatic ether group and is particularly effective in conjunction with other threshold agents, anti-corrosive agents, threshold synergist, polyelectrolytes and dispersants, and for treating water systems containing strong oxidising agents such as chromate.
Patent GB-2016447-A (GB)
Title: Cyclopropane carboxylic acid esters containing a polyhalogenated substituent
IPC: A23K1/16
Filed: 1979-01-31
Abstract: A compound selected from (S)- alpha -cyano3-phenoxybenzyl (1R,trans)-2,2-dimethyl-3-(2',2'- dichloro-1',2'-dibromoethyl)- cyclopropane-1 -carboxylate; (S)- alpha -cyano-3-phenoxybenzyl (1R,cis)-2,2-dimethyl-3-(2',2'-dibromo- 1',2'-dichloroethyl)-cyclopropane-1- carboxylate; 3,4,5,6-tetrahydrophthalimidomethyl (1R,trans)-2,2-dimethyl-3-(1',2',2',2'- tetrabromoethyl)-cyclopropane-1- carboxylate; 3,4,5,6-tetrahydrophthalimidomethyl (1R,cis)-2,2-dimethyl-3-(1',2',2',2'- tetrabromoethyl)-cyclopropane-1- carboxylate; (S)- alpha -cyano-3-phenoxybenzyl (1R,cis)-2,2-dimethyl-3-(1',2',2',2'- tetrachloroethyl)-cyclo-propane-1- carboxylate;  and (R)- alpha -cyano-3-phenoxybenzyl (1R,trans)-2,2-dimethyl-3-(2',2'- dichloro-1',2'-dibromoethyl)-cyclo- propane-1-carboxylate which compounds possess interesting insecticidal activity.
Patent GB-2014910-A (GB)
Title: Ink jet printer
IPC: B41J2/055
Filed: 1979-02-20
Abstract: An ink jet printer includes a pulse responsive actuating member (15, 16) which produces pressure increases in an ink chamber (17) of an ink jet print head (4) to cause ejection of ink droplets. A control circuit is provided to generate drive pulses for the actuating member (15, 16) having a duration such that the actuating member (15, 16) is maintained in an actuated state for a sufficient length of time for the pressure decrease resulting from the return of the actuating member (15, 16) to tend to compensate a pressure fluctuation in the ink resulting from the initial driving movement of the actuating member (15, 16). The invention assists in reducing the undesired drawing in of air bubbles from the output nozzle towards the ink chamber (17). <IMAGE>
Patent GB-2015855-A (GB)
Title: Axial Flow Rotary Threshing Apparatus
IPC: A01F7/06
Filed: 1979-03-09
Abstract: An axial flow threshing apparatus has a rotor in a cylindrical housing to which crop is fed by an auger in a housing. The rotor has an infeed portion with helical flights 54, a transition portion with rasp bars 64, a threshing portion with rasp bars 78 and a separator portion. Axial feed and agitation of the crop are controlled by blades 72 (transition portion) and 86 (threshing and separating portions). The blades lean in the feed direction and their major surfaces therefore play little part in the feed action. The outer edges of the blades are skewed relative to the circumferential direction in the sense which provides axial feed. In the case of the blades 86 the skew arises from bodily skewing the blades. In the case of the blades 72 the blades taper off in radial depth towards their rotationally leading edges. This gives the required skew of the edge as a result of the lean of the blades. <IMAGE>
Patent GB-2019478-A (GB)
Title: Flexible Ladder for a Vehicle
IPC: B60R3/00
Filed: 1979-04-17
Abstract: The ladder is suspended from the side of the driver's platform of a combine harvester by means of eyes 12 at the top. The upper part of the ladder formed by sides 4, 6 and treads 14, is completely rigid. The bottom tread 16 is suspended on flexible straps 20, 22 which allow the tread to deflect in the direction of its length if it hits the ground. The straps are so wide as to be substantially rigid with respect to deflection in the transverse direction. <IMAGE>
Patent GB-2046849-A (GB)
Title: Turbomachine strut
IPC: F04D29/44
Filed: 1979-04-17
Abstract: In combination with a stator vane assembly 15 arranged within a fluid flow duct of a turbo-machine, there is provided a strut 16 projecting across the duct downstream of the stator vanes 17 and having a first axis 18 extending along the duct, the leading edge 19 of the strut 16 being of an assymmetric shape about axis 18 and comprising two surfaces 20, 21 which meet at an apex 22 positioned to one side of axis 18. <IMAGE>
Patent GB-2049610-A (GB)
Title: Off-shore oil installation
IPC: B67D7/00
Filed: 1979-05-22
Abstract: An off-shore installation for loading oil into or unloading oil from a tanker including a supply pipe-line for carrying oil extending upwardly to the installation from an oil source or oil sink, and a flexible transfer pipe-line 8 rigidly connected without rotating glands to the upper end of the supply pipe-line 11, wherein at least a portion of the transfer pipe-line is coiled horizontally around a winding core 9 on the installation so that when a tanker connected to the installation moves in a circle around the installation the transfer pipe-line is uncoiled from or coiled onto the winding core. <IMAGE>
Patent GB-2023739-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F04C15/00
Filed: 1979-06-21
Abstract: In an externally-meshing screw machine, which may be a pump (as shown), a main screw 2 meshes with an idler screw(s) 3, 4 and the axial thrust on the latter is balanced by fluid pressure on a pin(s) 20, 21 in a sleeve(s) 22, 23 with sufficient radial clearance relative to the housing 1 to render it self-aligning with respect to the pin(s). <IMAGE>
Patent GB-2053047-A (GB)
Title: Cores for lost wax casting
IPC: B22C7/02
Filed: 1979-07-07
Abstract: A wax pattern used in the lost wax process is restrained from movement with respect of an adjacent ceramic core by an aperture in the core which becomes filled with wax during the wax injection; the aperture being shaped such as to prevent removal of the wax therefrom after solidification.
Patent GB-2022403-A (GB)
Title: Improvements in or relating to seats
IPC: B60N2/24
Filed: 1979-07-09
Abstract: A seat frame assembly for an aircraft seat, etc., consists of a laterally extending spar (1) supported on leg assemblies (2), longitudinally extending frame members (3 and 4) are mounted on the spar (1) by sockets members (25 and 24), allowing rotational and longitudinal variation of the assembly positions. Seat pad supports (5) are resiliently directly suspended (6, 7) from the frame members (3 and 4). The frame members (3) carry rigid arm rest frames (33, 34, 37). Frame members (3, 4) also provide pivot points (32, 43) for pivoted seat backs and anchorage locations for seat belts. <IMAGE>
Patent GB-2025823-A (GB)
Title: Apparatus for Scarfing Metal Workpieces
IPC: B23K7/06
Filed: 1979-07-16
Abstract: Scarfing apparatus has a nozzle 2 to which gas and oxygen are supplied. This is suspended from a trolley 7 which moves along a track 6 which is itself transversely movable. In order to take both the weight of the scarfer 1 and the recoil from the nozzle 2 on ignition away from the operator while still allowing him to make fine adjustments of position, the suspension is a three-point structure consisting of a first member formed by a cable 10 suspended from a balancer 10a, a second member formed by a telescopic tube 11 and a third member formed by the trolley 7 and a jib 9 rigidly fixed on the trolley. The balancer 10a and the tube 11 are braked when the scarfer is ignited, in order to resist the recoil. <IMAGE>
Patent GB-2038706-A (GB)
Title: Mechanical system for distributing thread in the tying of bales in rotary baling machines
IPC: A01F15/14
Filed: 1980-01-11
Abstract: A mechanical system for the distribution of thread (18) used for tying bales in rotary baling machines includes a pulley (1) driven through a clutch (9) from the motive system of the machine. The pulley has an eccentric pivot (12) on which is articulated a tube (13) which guides the tying thread (18) and is automatically reciprocated to feed the tying thread during rotation of the bale so that a greater density of turns are obtained at the ends of the bale than at the centre of the bale. A thread cutting mechanism (16), (17) is actuated by a lever (14) and cable (15). <IMAGE>
Patent GB-2049522-A (GB)
Title: Process for bonding germanium to metal
IPC: H01L21/60
Filed: 1980-03-21
Abstract: A germanium component is bonded to a second component of metal, or metal-surfaced ceramic, by a braze composed of a first metal, which is constituted by or deposited on the surface of the second component, one or two additional metals deposited on one or both or inserted between the component surfaces, and germanium derived from the germanium component, the additional metal or metals and germanium preferably forming a eutectic which interacts with the first metal to form a molten braze at a temperature below the melting points of the components. Specifically, for the manufacture of an infra-red transmitting window for a laser, a germanium window 1, 2 is bonded to a support 3 of Nilo K or Kovar (Registered Trade Marks) by coating the latter at 6 with nickel or cobalt, introducing silver and/or copper either as coating 7, 8 on, or as a shim(s) powder or wire, inserted between, the mating surfaces, and heating the assembly in a vacuum furnace. The braze withstands temperatures used for outgassing the device. Gold and tin are referred to also as additional metals. <IMAGE>
Patent GB-2073550-A (GB)
Title: Article sorting
IPC: D06F93/00
Filed: 1980-04-03
Abstract: Articles, for instance of laundry, are classified by providing them with labels including one or more tuned circuit transponders. The labelled articles are automatically sorted by passing them through a duct provided with three orthogonal inductive coils 32, 33, 34 powered with a frequency swept waveform monitored to detect resonance effects occurring whenever a labelled article couples to the field of the coils. Preferably the coils are powered with 120 DEG  phase related signals to provide a 'tumbling' field. <IMAGE>
Patent GB-2051367-A (GB)
Title: Indicating liquid levels
IPC: G01F23/66
Filed: 1980-05-12
Abstract: A level indicator for use in an aircraft fuel tank (12) comprises a stick (46) in a vertical tube (18) separating the fuel space (14) from a space for the stick (46). The stick (46) can be inserted from the bottom and carries a magnet (44) at its upper end which co-operates with a magnet (30) in a float (26) surrounding the tube (18). Thus once released from a fitting (24) at the bottom, the stick will be supported by the magnets (30 and 44) at a height corresponding to the liquid level in the tank, and that level can be read by marks (48) on the stick. The stick is thin and flexible to be capable of being stably vertical when supported from the bottom while yet being flexible enough to bend rather than break when struck by a transverse blow. <IMAGE>