baber/WOPTO huggingface dataset:
Patent GB-1407321-A (GB)
Title: Sulphur dioxide and particulate contaminant removal from industrial stack gases
IPC: B01D53/81
Filed: 1973-11-07
Abstract: 1407321 Sulphur dioxide removal AMERICAN AIR FILTER CO Inc 7 Nov 1973 [7 Dec 1972] 51737/73 Heading C1A Sulphur dioxide and particulate contaminants are removed from waste gases by a treatment which comprises depositing on to a separating means water-soluble alkaline sodium compounds capable of being regenerated by the action of carbon dioxide on dissolved sodium compounds (e.g. sodium carbonate, sodium bicarbonate, hydrated sodium carbonates, sodium sesquicarbonate and the naturally occurring ores naheolite and trona); passing waste gases containing sulphur dioxide, carbon dioxide and particulate contaminants through said separating means, thus separating the particulate contaminants and forming water-soluble products of the reaction between sulphur dioxide and the alkaline sodium compounds; periodically removing the products, the particulate contaminants and any unreacted alkaline sodium compound from the separating means; leading the reaction products and the alkaline sodium compounds from the particulate contaminants into a leach liquor; treating the leach liquor with calcium hydroxide to precipitate stable calcium salts whose anions contain sulphur and optionally carbon, which precipitate is discarded leaving dissolved sodium compounds in the leach liquor; treating the leach liquor with carbon dioxide to regenerate the original alkaline sodium compounds; converting these compounds to solids; and redepositing these solids on to the separating means.
Patent GB-1132097-A (GB)
Title: Esters of thiophosphoric acid and pesticidal compositions containing them
IPC: C07F9/165
Filed: 1965-12-07
Abstract: 1,132,097. Esters of thiophosphoric acid. TAKEDA CHEMICAL INDUSTRIES Ltd. 7 Dec., 1965 [7 Dec., 1964], No. 51847/65. Heading C2C. [Also in Division A5] Novel thiophosphoric acid esters of the formula wherein R<SP>1</SP> and R<SP>2</SP> each is a C 1 -C 6  alkyl radical, one of R<SP>3</SP> and R<SP>4</SP> is a C 1 -C 6  alkoxy radical and the other is a radical of the formula where R<SP>5</SP> is a hydrogen atom or a C 1 -C 6  alkyl radical, are obtained by reacting thiophosphoric acid esters (R<SP>1</SP>O)(R<SP>2</SP>O)PS.SH with maleic or fumaric acid amides of the formula The reaction may be carried out in the presence of a condensing agent, e.g. an organic or inorganic base, at or above room temperature and in the presence of a solvent, e.g. hydrocarbons, alcohols, ketones, esters or amides, and/or an antioxidant, e.g. hydroquinone. The isomeric products so obtained may be separated by conventional means, e.g. chromatography. The compounds are useful as pesticides (see Division A5).
Patent GB-1508380-A (GB)
Title: Co-axial magnetrons
IPC: H01J25/55
Filed: 1975-12-19
Abstract: 1508380 Magnetrons ENGLISH ELECTRIC VALVE CO Ltd 10 Nov 1976 [19 Dec 1975] 52211/75 Heading H1D A coaxial magnetron is tuned by one or more separate resonators, each incorporating a multipactor discharge arrangement, symmetrically coupled to the magnetron coaxial cavity. In Fig. 5, a single separate resonator 23 encloses the end of the coaxial cavity, to which it is coupled by a circular array of coupling probes 31, multipactor discharge being excitable between the annular electrode 27, which may be in the form of a plurality of separately bipassable segments, and the coaxial cavity wall 2. In other embodiments, a pluality of separate resonators are distributed around the coaxial cavity, being coupled to the latter either through its end wall (Figs. 3 and 4, not shown), or through its outer curved wall (Figs. 1 and 2, not shown).
Patent GB-1457003-A (GB)
Title: Surgical instruments
IPC: A61B17/28
Filed: 1973-11-09
Abstract: 1457003 Surgical shears ACME UNITED CORP 9 Nov 1973 [14 Nov 1972] 52255/73 Heading B4B [Also in Divisions A5-A6] A surgical instrument e.g. for shearing or clamping has two arms pivotally interconnected at a point 26 intermediate of their ends, each arm having a fingerloop with a finger restraining section with a curve 40 towards the arm and a reverse curve 42. The arms may also have ratchet toothed sections 44 on which teeth 70 have their tips below the outer surface of the adjacent arm portion and each section has flats 74, 76 extending from the slope of the last tooth to the outer surface of the arm to prevent further advancement of the interlocked teeth. The arms may also have flats surrounding the pivot apertures providing heels 64, 66 and (54, 56) Fig. 5 (not shown) which engage shoulders 50, 52 and 60, 62 to act as stops. The instrument is manufactured by cutting rod into required lengths bending the loops and simultaneously punching the pivot hole and forming adjacent flats, the jaw formation being produced after the punching operation.
Patent GB-1096466-A (GB)
Title: Improvements in or relating to thermostats
Inventor: MACIEJEWSKI EDWARD
IPC: H01H37/60
Filed: 1964-12-23
Abstract: 1,096,466. Thermal switches. ECKOHAWKINS Ltd. Dec. 2, 1965 [Dec. 23, 1964], No. 52267/64. Heading H2B. A thermostat for an electrical immersion heater comprises a rigid contact member 18 and a flexible contact member 20 the engagement between which is controlled by a bimetallic blade 15, the rigid contact member 18 having an elongated extension 32 adapted to pass within a connecting pin 11 of the immersion heater and the flexible member 20 adapted to be connected to a terminal of the heater element 4, the contact members 18, 20 and the bimetallic blade 15 being fixed in position relative to each other by spacers 22, 23 of insulated material, e.g. ceramic, clamped together. Bi-metallic blade 15 is a trifurcated strip (47) the end (50 bridging the free ends of the outer legs (51, 52) being deformed at (59) to produce the appropriate curvature (57, 58) and the tongue (48) actuating flexible member 20 through operating rod 16 with a snap action. The thermostat is mounted in a pocket 5 on the immersion heater head 1, lead 9 from one end of the heater element passing into pin 10, the connection (8) at the other end of the heater element being connected to terminal 29 leading to member 20, and socket and cable clamping means F, G fits over plug E carrying pins 10, 11 and earth pin 12, the heat end 35 of which is connected to firing bars (42 or 43) in head 1.
Patent GB-1173040-A (GB)
Title: Drive Mechanism for Transmitting Rotary Motion
Inventor: SUTARUK ALEX
IPC: F04C29/00
Filed: 1967-11-16
Abstract: 1,173,040. Controlling compressors. EATON YALE & TOWNE Inc. Nov.16, 1967 [Dec.6, 1966], No.52268/67. Heading F1N. [Also in Division F2] A combined friction clutch and viscous shear type fluid coupling between a prime mover and an air compressor is automatically controlled to provide a mechanical friction drive when the compressor delivery pressure is below a first predetermined value, and a fluid drive when the pressure exceeds the first value, the slip in the fluid coupling increasing progressively as the pressure rises from said first value until, at a second predetermined value, the drive is discontinued. The compressor supplies, e.g. a vehicle compressed air braking system, the first and second pressures being 85 p. s. i. and 105 p.s.i. The clutch/coupling comprises an input member 16, having cooling fins 25 and a pulley 28, supported on the hubs 36, 38 of an output member 18 for axial and rotary movement relative thereto. The member 18 comprises a part 18a secured to a sleeve 40 and a part 18b splined to the sleeve 40, which sleeve is keyed to the compressor shaft 14. Belleville springs 56 urge faces 70, 72 of the parts 18a, 18b into engagement with friction linings 74, 76 of the member 16. Inter-digitated surfaces 48, 50 on the members 16, 18 form the fluid coupling working zones. As the member 18 rotates, fluid from a reservoir 52 therein is forced centrifugally outwards along a passage 54 between the parts 18a, 18b to reach the working zones of the coupling. Impact pumps (58, Fig.2, not shown) on the periphery of the member 18 pump fluid from the working chamber via bores (60) back to the reservoir. A spring-loaded centrifugal valve (62) in each bore (60) restricts the return flow at normal speeds, but opens at a predetermined speed to increase the return flow to prevent overspeeding. The compressor delivery pressure is applied to a non-rotary piston 78, to act via a thrust bearing 82 on the part 18b to oppose the springs 56. Operation. Below the first pressure, the springs 56 hold the friction surfaces in engagement. As the delivery pressure reaches the first value, the springs 56 are overcome so that the friction clutch is disengaged, the fluid coupling taking up the drive. As the pressure continues to rise, the springs 56 yield progressively so that the passage 54 is narrowed and the spaces between the shear surfaces 48, 50 are increased, to increase the slip. At the second pressure value, the members 18a, 18b engage to close the passage 54, and the fluid coupling ceases to transmit torque. Drive recommences when the pressure falls again.
Patent GB-1324544-A (GB)
Title: Rear wheel suspension arrangements in automobile vehicles
IPC: B60G3/14
Filed: 1970-11-03
Abstract: 1324544 Independent rear wheel suspensions AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 3 Nov 1970 [2 Feb 1970] 52340/70 Heading B7D In an automobile rear wheel suspension, trailing arms 2 are pivoted on a common crossmember 4 connected at each end to the vehicle body through a resiliently yieldable pivotal device which comprises a resilient sleeve 16 bonded to inner and outer sleeves 17, 18 secured to an end plate 11 on the cross-member 4 and a support member 13 on the body respectively to define a pivot axis Z-Z, and a resilient packing element 22 secured between a part 13c of the member 13 and a parallel part of the end plate 11 to resist turning of the crossmember 4 about the axis Z-Z by acting mainly in shear. The packing element 22 is bonded to plates 23, 24 bolted to the part 13c and end plate 11 respectively and has a U or Y formation with two arms 25, 26 forming stops which co-operate with parts 30, 31 of the member 29 to limit turning of the cross-member 4. In another embodiment, Figs. 4, 5 (not shown), the parallel parts of the mounting member and the end plate between which the resilient packing element is arranged are disposed transversely of the cross-member so that lateral forces are carried by compressive loading of the packing element.
Patent GB-1142997-A (GB)
Title: An improvement in power transmission mechanisms
IPC: B60T1/00
Filed: 1966-11-23
Abstract: 1,142,997. Parking locks. H. EBERT. 6 Oct., 1967 [23 Nov., 1966], No. 52348/66. Heading F2E. A parking lock has a toothed member 13, Fig. 3, on the transmission shaft, and at least one roller 17 slidable in a slot 16 in a fixed member 14 and arranged with its axis parallel to the tooth gaps, so that the shaft is locked by entry of the roller into a gap under the action of a cam 19. The toothed member may be a spur gear (13, Fig. 1, not shown), or a helical gear. The cam 19 acts on the roller 17 via a second roller 18, and is operated by a hand lever which is connected through linkages (30-34, Fig. 1, not shown) to an arm (29) fixed to a spindle 20 on which the cam rotates. Rotation of the spindle 20 is conveyed to the cam via a coil spring 35 which is fixed at one end to a collar (28) rigid with the spindle 20 and at the other end locates in a recess in the cam. Integral with the cam are two diametrically opposite, recessed quadrants 21, 22 with which a pin 23 extending diametrically through the spindle 20 can engage. Disengagement of the lock from the engaged position shown in Fig. 3 is effected by positive engagement of the pin 23 with the quadrants 21, 22 as the spindle is turned anticlockwise. Actuation of the lock is effected by clockwise rotation of the spindle to the position shown, the cam following under the action of the spring 35 either simultaneously, or when a tooth gap is subsequently aligned with the roller 17.
Patent GB-1325498-A (GB)
Title: Pressurized gas driven motors
IPC: F01B17/00
Filed: 1970-11-04
Abstract: 1325498 Impelling-tools ATLAS COPCO AB 4 Nov 1970 [7 Nov 1969] 52397/70 Heading B4C [Also in Division F1] A tool comprises a cylinder housing 4 and a hollow drive piston 5 reciprocably guided in the housing, the chamber 6 enclosed by the piston being arranged to be fed with gas under pressure from a source thereof, and the piston and housing having openings 13-17 and the housing having distributing channels 18, 19 for distributing pressure gas from the chamber 6 to piston work and return stroke chambers 12a, 12b and from these chambers to atmosphere in such a way that the piston is driven backwards and forwards in the housing. The openings 14, 20 are so located in the housing that when the piston approaches its rear end position a closed chamber 12a is formed in which a cushion of gas is trapped which causes the piston to rebound. The piston has a driving portion 23 which drives, e.g., a hammer piston 22, via a cushion of gas 25 which also causes the piston to rebound at its forward end position. In the embodiment shown, the hammer piston 22 is arranged to drive a drill steel. An auxiliary piston 24 having a flange 27 engages a flange 28 on the piston 22 during the return stroke thereof to position this piston ready for the next stroke. Air under pressure is admitted to the chamber 25 via an opening 26 when the piston 5 is retracted, and this air passing through clearances maintains the piston 24 in its lowest position and provides cushioning in a chamber 31 for the piston 22. In a second embodiment, of reduced length, the drive piston is annular and the hammer piston passes through the centre thereof. The auxiliary piston is above the drive piston and engages the rear end of the hammer piston on its return stroke. The cushioning chamber for the drive piston is provided by an internal flange on the drive piston and an external flange on the hammer piston.  In a third embodiment, Fig. 3 (not shown), intended for "down the hole" drilling, the drive-piston includes a plurality of pistons working in several respective coaxial cylinder chambers. The drive piston includes a second chamber which receives exhaust gases from the motor and directs them via an extension of the drive piston through the hammer piston and a drill tool, for flushing. In any embodiment the tool can be fitted with a drill steel chuck and drill steel rotation mechanism.
Patent GB-1112088-A (GB)
Title: Improvements in sheet bending machines
IPC: B21D5/14
Filed: 1966-11-23
Abstract: 1,112,088. Curving. LINDMARK P.S.V. 23 Nov., 1966, No. 52433/66. Heading B3E. A sheet bending machine including at least two rollers around one of which the sheet is curved is characterized in that this roller is axially slidable out of the bending zone to allow removal of the curved sheet. An upper roller 1 co-operates with two lower rollers 5 to curve sheet about the upper roller. The roller 1 is carried at one end by means 2 supported by rollers 6 on rails 7 and moved therealong, to withdraw the roller 1 axially, by screw-and-nut means 9, 8. In another embodiment, Fig. 3, the roller 1 is supported by two lower rollers 11, 12 and a driven upper roller 13, which rotate about axes at right-angles to the axes of the roll 1 to withdraw it from its curving position.
Patent GB-1177928-A (GB)
Title: Composition and process for Treating Cellulosic and Proteinaceous Materials
IPC: C08G18/50
Filed: 1966-11-24
Abstract: 1,177,928. Coating; emulsions of polyhydroxy-modified isocyanates. HOOKER CHEMICAL CORP. 24 Nov., 1966 [26 Nov., 1965 (2)], No. 52583/66. Headings B1V, B2E and B2K. [Also in Divisions C3 and D1] Cellulosic materials are waterproofed and proteinaceous materials are shrinkproofed and may be creaseproofed and given improved dye fastness by applying thereto a polymerizable treating composition comprising a polyhydroxy-modified diisocyanate which is the reaction product of a polyhydroxy compound containing in hydroxyl groups and a diisocyanate, the reactants being in the ratio of one mole of polyhydroxy compound to m-n moles of diisocyanate, in which m is from 3 to 6, n is from 0 to 4.5 and m-n is at least 1.5, and then effecting curing with water. The polyhydroxy compound may be a polyhydric alcohol, a glyceride of a hydroxy acid, a sugar or an alkyl or aralkyl polyhydroxy acid, ether, aldehyde or ketone containing 3-6 hydroxyl groups and the diisocyanate may be an aryl, alkaryl or aliphatic diisocyanate. The polyhydroxy modified isocyanate may be applied to the cellulosic or proteinaceous material as a solution in an organic solvent, e.g. benzene, toluene, xylene, trichlorethylene, perchloroethylene, carbon tetrachloride or methylene chloride, or as an aqueous emulsion which may also contain an anionic emulsifying agent, e.g. an alkyl or alkyl aryl sulphonate or sulphate in which the alkyl portion contains 4-30 carbon atoms and the aryl portion contains 6-10 carbon atoms, or a nonionic emulsifying agent, e.g. an alkylene ether containing 4-30 carbon atoms and 1-15 mols of alkylene oxide, and a fatty acid soap, e.g. an alkali metal stearate or palmitate, the solution or emulsion preferably containing 0.5-50% by weight of the polyhydroxy modified isocyanate. The solution or emulsion may be applied at a temperature of from 10C to the boiling point of the solvent by immersion or spraying, excess solution or emulsion being removed by squeezing and the treated material dried at from 20C to the boiling point of the solvent used. The treated material may then be saturated with water which may contain a nonionic or anionic wetting agent and may have a pH of 7.5-9 adjusted if necessary by the addition of an alkali metal bicarbonate, at from room temperature to 100C for from 1 minute to several days or saturated with water and the cure completed by heating to an elevated temperature. Curing may also be effected by steaming or by the water vapour in the atmosphere. Cotton, ramie, viscose rayon or jute in the form of fibres, yarns, fabrics or garments e.g. coats, shirts, trousers or skirts, wood, cardboard and paper which may be in the form of containers, bags or wall board, alpaca, angora, camel hair, cashmere, llama, mohair, vicuna or wool alone or in admixture with cellulose acetate, viscose rayon or nylon fibres, which may be in the form of fibres, yarns, fabrics or garments ,e.g. coats, sweaters, socks, shirts, trousers or skirts, may be treated.
Patent GB-526182-A (GB)
Abstract: 526,182. Directive wireless signalling. STEINHOFF, J. R. March 9, 1939, No. 7692. Convention date, March 19, 1938. [Class 40 (v)] The indicator in a directional receiver is operated by the charge applied to two series condensers charged in accordance with two interspersed signals. The Figure shows a loop 2 the ends of which are alternately connected to the input of a receiver 51 and to earth by switches 19, 20 driven by an electro-magnetic interrupter 8, 22. The relative strength of the two signals depends on the bearing of the transmitter and controls the charging through the driven contact 21 of condensers 17, 18 by the automatic volume control voltage of the receiver after amplification by the valve 9. The indicator I comprises a voltmeter differentially connected to the condensers 17, 18 the sensitivity of which is adjustable by resistance R1 to allow for the received signalstrength. The indicator M comprises a milliammeter in the anode circuit of the valve 9 which may be calibrated in distances since the current will depend on signal strength. A pair of loops may be employed or alternatively two straight antennae in line and mounted on the ' wings of an aeroplane may be used. When two antennae are used the switching device is arranged to reverse their connection to the receiver.
Patent GB-1138380-A (GB)
Title: 1,2-bis-(4-isocyanato-cyclohexyl)ethane
Inventor: CLIFFORD BARBARA HELEN
IPC: C07C209/36
Filed: 1966-11-24
Abstract: 1,138,380. 1,2 - Bis - (4 - isocyanatocyclohexyl) - ethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Oct., 1967 [24 Nov., 1966], No. 52688/66. Heading C2C. [Also in Divisions B2 and C3] The invention comprises 1,2-bis - (4 - isocyanatocyclohexyl) - ethane. It may be prepared by phosgenating 1,2-bis-(4-aminocyclohexyl)-ethane or a salt thereof. The diamine used as starting material may be prepared by the oxidative coupling of p-nitrotoluene to give bis-(4-nitrophenyl)-ethane which is then reduced in one or two stages to give the required diamino compound.
Patent GB-1310568-A (GB)
Title: Apparatus for severing glass fibres
Inventor: KLINK J P
IPC: C03B37/16
Filed: 1970-11-05
Abstract: 1310568 Cutting glass filaments OWENSCORNING FIBERGLAS CORP 5 Nov 1970 [29 Dec 1969] 52789/70 Addition to 1211163 Heading C1M In apparatus as disclosed in the Specification 1,211,163 the cutter roll 13 comprises a cylindrical member 110, a plurality of blades 14 extending outwardly therefrom and seated with their bases 122 in grooves 116 to secure them against circumferential movement, end plates 112 and 114 engaging by walls 146 opposite sides of the blades 14 in a region close to but spaced from their cutting edges 126 so as to fix them against circumferential movement and against outward movement on the cylindrical member 110. Preferably the blades 14 extend slightly obliquely to the axis of the member 110.
Patent GB-1316363-A (GB)
Title: Alkoxycarbonyl-acridan derivatives and the preparation thereof
IPC: B01J23/00
Filed: 1970-05-28
Abstract: 1316363 9 - Alkoxycarbonyl - 10 - methylacridan derivatives ROUSSEL UCLAF 28 May 1970 [28 May 1969] 52981/72 Heading C2C The invention comprises compounds of the formula wherein "Alk" is a C 1 -C 4  alkyl group, and X and X<SP>1</SP> are each H or halogen atoms. They may be obtained by reduction of an acridinium salt of the formula wherein Y is an anion, preferably with an alkali metal borohydride or by catalytic hydrogenation. Examples are given for the preparation of the compounds. 2- and 3 - Chloro - 9 - methoxycarbonyl - 10- methylacridinium methosulphates are obtained by treating 2- or 3-chloro-9-methoxycarbonylacridine with methyl sulphate. 2- and 3 - Chloro - 9 - methoxycarbonylacridines are obtained by esterification of the corresponding acids with diazomethane in dichloromethane. 2 - Chloro - 9 - carboxyacridine is obtained by acid hydrolysis of 2-chloro-9-cyanoacridine. 2 - Chloro - 9 - cyanoacridine is obtained by treating 2,9-dichloroacridine with NaCN in methanol.
Patent GB-1411440-A (GB)
Title: Control systems for direct current traction motors
IPC: H02P7/29
Filed: 1972-11-16
Abstract: 1411440 Smoothing pulsating currents A R BAILEY 16 Nov 1973 [16 Nov 1972] 53036/72 Heading H2F [Also in Division H3] In a control system for a D.C. traction motor, a filter is included between the D.C. supply and the chopper 15 and comprises at least one series resonant circuit 16, 17, tuned to the chopping frequency, across the chopper input and a high impedance 31 in series with the D.C. supply. The invention minimizes interference with signalling circuits such as railway track circuits. Other series circuits 18, 19; 20, 21 may be tuned to harmonics of the chopping frequency. Other interfering frequencies may be blocked by parallel circuits 33, 34 or 28, 29. A damping resistor in series with a blocking capacitor may be connected across capacitor 22 or 32.