baber/WOPTO huggingface dataset:
Patent GB-1372541-A (GB)
Title: Cyclopentane derivatives
IPC: C07D307/935
Filed: 1971-12-16
Abstract: 1372541 Prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 19 June 1972 [14 July 1971 16 Dec 1971] 33049/71 and 58399/71 Headings C2C and C2P [Also in Divisions C3 and A5] The invention comprises prostaglandins of the formula  wherein R<SP>1</SP> is -CH 2 OH, -COOH or alkoxycarbonyl of up to 12 carbon atoms; either R<SP>2</SP> is OH or C 1-4  alkenoyloxy and R<SP>3</SP> is H, or R<SP>2</SP> and R<SP>3</SP> together form = O ; Y is ethylene or vinylene; A is ethylene or trans-vinylene; and R<SP>4</SP> is an aryl radical optionally substituted by halogen atoms, nitro, C 1-3  alkyl, C 1-3  haloalkyl, C 1-3  alkoxy or di(C 1-3  alkyl)amino radicals, and pharmaceutically acceptable salts of those compounds in which R<SP>1</SP> is COOH, and their preparation. They are prepared by hydrolysing compounds of the formula  or mixed anhydrates thereof, wherein R<SP>5</SP> and R<SP>6</SP> each or betrahydropyran-2-yloxy or carboxylic acyloxy, followed by, if desired, esterification and reduction of the resulting esters. 16 - Methyl - 9 - oxo - 11α,15 - bis - (tetrahydro pyran - 2 - yloxy) - 17 - (4 - trifluoromethylphenyl) - 18,19,20 - trinor - 5 - cis,13 - transprostadienoic acid is prepared by oxidizing the corresponding 9α-hydroxy compound. Ethyl 2 - methyl - 3 - (3,4 - dichlorophenyl)- propionate is obtained by hydrogenating ethyl 3 - (3,4 - dichlorophenyl) - 2 - methylacrylate resulting from the reaction between ethyl 2-(diethylphosphono)propionate with 3,4-dichlorobenzaldehyde in the presence of butyllithium. Cyclopenta[b]furans of the Formula VI wherein Ac is p-phenylbenzoyl are prepared by reacting 5α - (4 - phenylbenzoylozy) - 4#- formyl - 3,3aα,4,5,6,6aα - hexahydro - 2H- cyclopenta[b]furan-2-one with phosphonates of the formula (MeO) 2  P(O) CH 2 -CO-CH(CH 3 )- OH 2 R<SP>4</SP> in the presence of butyllithium. 9α - Hydroxy - 16 - methyl - 17 - phenyl - 11α, 15 - bis - (tetrahydropyran - 2 - yloxy) - 18,19,20- trinor - 5 - cis, 13 - trans - prostadienoic acid is prepared by reacting (4-carboxybutyl)triphenyl phosphonium bromide with 2-hydroxy-3,3aα,- 4,5,6,6aα - hexahydro - 4# - (4 - methyl - 5 - phenyl- 3 - (tetrahydropyran - 2 - yloxy) - 1 - transpentenyl] - 5α - (tetrahydropyran - 2 - yloxy) - 2H- cyclopenta[b]furan, obtained by reducing the corresponding hexahydro - 2H - cyclopenta[b]- furan-2-one, resulting from the reaction hydropyran on the corresponding diol, which is prepared by hydrolyzing 3,3aα,4,5,5,6aα-hexahydro - 4# - (3 - hydroxy - 4 - methyl - 5 - phenyl- 1 - trans - pentenyl) - 5α - (4 - phenylbenzoyloxy) - 2H - cyclopenta[b]furen - 2 - one, resulting from the reduction of the corresponding cyclopenta- [b]furan of Formula VI above. Phosphonates of the formula are prepared by reacting dimethyl methylphonphosate with esters of the formula R<SP>4</SP>CH 2 CH(CH 3 )COO-alkyl.
Patent GB-1338233-A (GB)
Title: Electrochemical cells
IPC: H01M10/42
Filed: 1970-12-09
Abstract: 1338233 Rechargeable cell with zinc electrode M D KOCHERGINSKY S L KALACHEV V A NAUMENKO and L F PENKOVA 9 Dec 1970 58441/70 Heading H1B A storage cell having a dissoluble negative zinc electrode has at least one of its parts vibrated during charging to agitate the electrolyte and thus prevent the formation of dendritic zinc. The positive electrode is of nickel or silver oxide or is an air-depolarized electrode, and separators of perforated P.V.C. are provided. As shown, groups 9 of electrodes are vibrated by means of collector bars 10 which are coupled via a plate 7 and cam shaft 11 to an electric motor 8. Other vibratory arrangements are envisaged including the use of ultrasonics, and the cell separators may be vibrated. A rubber or polyethylene sealing sleeve 13 is fitted to the cell and the collector bar 10. The plate 7 may be omitted and the vibrations transmitted via intercell connectors (12, Fig. 5, not shown).
Patent GB-1198840-A (GB)
Title: Preparation of Oxygen and Sulphur-Containing Organic Compounds
IPC: C07C43/12
Filed: 1967-12-27
Abstract: 1,198,840. Ethers and thioethers. MONSANTO CO. 27 Dec., 1967 [27 Dec., 1966], No. 58621/67. Heading C2C. [Also in Division C3] Ethers and thioethers are prepared by reacting compounds of the formulµ R(F) n  and M b [X(Z) d ] c  in the presence of a dipolar aprotic solvent, where R is optionally substituted hydrocarbon; M is an alkali or alkaline earth metal; X is O or S; Z is optionally substituted aryl or heterocyclyl of 3-10 carbon atoms and 1-4 oxygen, sulphur and/or nitrogen atoms; n and b are at least 1, c is 1 to b times the valence of the metal M, provided that when M is an alkali metal c is 1, d is 0 or 1, and is 1 when X is S, and when d is 1, M is an alkaline earth metal.
Patent GB-1200750-A (GB)
Title: Improvements in electric cables
IPC: H01B9/02
Filed: 1967-12-27
Abstract: 1,200,750. Cables. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 27 Dec., 1967 [30 Dec., 1966], No. 58720/67. Heading H1A. In a cable with a concentric neutral conductor formed of corrugated wires 12 the corrugations are staggered so as to be in contact at 14 and spaced apart at 15 in order to resist deformation and displacement of the wires. A helically wound continuity tape 13 covers at least the spaced-apart sections 15 and the whole is covered with an external protective sheath. An anti-corrosion tape may be placed between the tape 13 and the external protective sheath or the neutral conductor may be sealed, at least in the part not covered by the continuity tape and along the joins formed between the tape and the wires. The wires may have symmetrical or asymmetrical corrugations and may be composed of copper or annealed aluminium.
Patent GB-1280930-A (GB)
Title: Damper construction
IPC: F16K1/22
Filed: 1969-07-16
Abstract: 1280930 Valves FORNEY INTERNATIONAL Inc 16 July 1969 [16 July 1968] 59358/70 Divided out of 1277758 Heading F2V [Also in Division F4] A damper unit 10 comprises a frame structure 16 defining a central opening 22, horizontal shafts 24 mounted across said opening 22, bearing means 34 positioned on opposite sides of said opening for rotatably mounting each of said shafts, and a series of damper blades 40 mounted one on each shaft, each damper blade having a hollow aerofoil-shaped configuration and being formed of an exterior blade half 42 and an interior blade half 44, the interior blade halves being provided with slotted openings 52. In use, with hot gas passing through the duct to the atmosphere, the hot gas swirls in and out of the internal chambers 50 through openings 52, whereby there is substantially no temperature differential between the blade halves.
Patent GB-1298663-A (GB)
Title: Frame members
Inventor: HUGHES GRAEME
IPC: E06B3/22
Filed: 1968-12-18
Abstract: 1298663 Frame members IMPERIAL CHEMICAL INDUSTRIES Ltd 18 March 1970 [18 Dec 1968] 60108/68 Addition to 1200306 Heading E1J The hollow frame members, preferably compression moulded from a partially cured sheet of e.g. glass fibre reinforced polyester resin and provided with hollow ridges 12A, 12B formed as described and claimed in parent Specification, have inserted therein, for reinforcement against deflection under loading such that a resistance to a deflection is exerted at least transversely to the ridge, reinforcing member 17, 18, 19 of a load bearing metal such as copper, brass and steel or a plastics material e.g. glass fibre reinforced polyester resin. The reinforcing member may be of Z- section as shown, or closed box section the form of an I, or a box section split longitudinally along one side. The construction of a window with pivoted sashes is also described utilising joints as described and claimed in Specification 1200597.
Patent GB-1207258-A (GB)
Title: Method and apparatus for forming threads by reciprocating hammers
IPC: B21K1/56
Filed: 1968-12-19
Abstract: 1,207,258. Forging. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 Dec., 1968 [28 Dec., 1967], No. 60282/68. Heading B3H. A screw-thread forming device for rods or tubes comprises a rotary swager and a threaded coupling unit having a sleeve 24 driven synchronously with the jaw block of the swager and a threaded tube 26 coupled to the workpiece 30. The jaws 10 of the swager are slidably mounted in the jaw block and reciprocated by rollers 16 in a cage 20. The block is integral with a spindle driven through toothed belt and pulley or gearing by an intermediate drive shaft which also drives the tube 26. The tube 26 is coupled to the workpiece 30 by a friction coupling 28. A braking mechanism 32 comprises friction jaws 35 manually adjustable by a knurled nut 34. When the tube 26 is not braked the tube and workpiece rotate as a unit with the sleeve 24 and no axial feed of the workpiece is produced. When the braking mechanism is operative the workpiece is advanced when it is released by the jaws 10. The braking mechanism may be dispensed with if a variable-speed motor 68 is used to drive the tube 26. Any elongation of the workpiece is taken up by the friction coupling 28. In an alternative form of coupling, Fig. 5 (not shown), the tube (26<SP>1</SP>) is coupled to the workpiece 30<SP>1</SP> by a sleeve (74) keyed to a member (76) which may be stationary or rotatable slowly. The screw thread may be formed as a single rib or as a series of elevations spaced at angular intervals. The inside surface of a tube may also be threaded by using a suitable mandrel.
Patent GB-1279620-A (GB)
Title: Improvements in or relating to sliding tracks
Inventor: REED RAYMOND JOHN
IPC: B60N2/07
Filed: 1968-12-19
Abstract: 1279620 Sliding seat supports BIRNAM PRODUCTS Ltd 13 Feb 1970 [19 Dec 1968] 60291/68 Headings F2A AD36 and A5D Two identical channel sections 2 with flanges 4, 5 both in the same direction are assembled to form a sliding track. Nylon or other anti-friction blocks are interposed between the channels and roller bearings may be provided between their webs. (For Figure see next page)
Patent GB-2027178-A (GB)
Title: Breaking apparatus for removing scale from reheating furnace
IPC: F27D25/00
Filed: 1978-08-01
Abstract: Apparatus for mounting on a raised structure of spaced members for breaking material beneath said structure comprises a chassis having wheels for engagement with rails laid across said structure, a base member rotatably mounted on the chassis, an arm assembly pivotally mounted on top of said base member about a horizontal pivot axis and having one end projecting beyond the base member whereby the arm assembly can be pivoted through a vertical plane to bring said one end thereof below the level of the chassis, and a powered breaker at said one end of the arm assembly.
Patent GB-2029569-A (GB)
Title: Fluid flowmeter
IPC: G01P5/20
Filed: 1978-09-07
Abstract: In a fluid flowmeter first and second light beams are transmitted across moving fluid. Transient turbulence effects in the fluid cause small changes in the intensity of the light beams, these changes being monitored by detectors D1, D2 one aligned with each beam. By measuring the time taken for a particular fluid eddy to cross the two light beams the fluid velocity is determined. Detector D1 is connected via a variable delay circuit, and detector D1 directly, to a correlation circuit, controlling the delay circuit. Either a differential mixer and peak detector, or a microprocessor, programmed to perform the correlation, may be used. <IMAGE>
Patent GB-2039883-A (GB)
Title: Preparation of reumycin
IPC: C07D487/04
Filed: 1979-01-12
Abstract: Reumycin, 6-methylpyrimidino [5,4-e]-as-triazine-5,7-(6H8H)-dione which has anti-tumour activity may be prepared by reacting a compound of formula   <IMAGE> (in which R represents a lower alkyl group, e.g. methyl) with an amine, preferably a primary or secondary amine or an amino group-containing anionite and then acidifying the reaction product. The intermediate produced in this reaction is a quaternary ammonium salt of reumycin, which is also new.
Patent GB-2039625-A (GB)
Title: Dental handpiece comprising an air-driven turbine
IPC: F16C33/80
Filed: 1979-01-16
Abstract: A dental handpiece has a housing with a removable cap together defining a chamber in which are coaxially mounted two bearings 30, 31, each having an inner race 33 and an outer race 32. A shaft 25 is disposed in the inner races of the bearings. Between the bearings the shaft carries a turbine rotor 46 comprising two cups 47, 48 each having a hub and having peripheral turbine blades 54 spaced apart a predetermined distance. The cups are mounted on the shaft with the cups facing each other so that the hubs and peripheries abut in a common plane normal to the axis and also defining a central annular space 52. The turbine blades are staggered with respect to each other. They receive air from an inlet passage 14 in the housing and release air to an outlet passage 15 in the housing. The inlet passage opens into three tangentially directed nozzles 56, 57, 58 which discharge air onto the concave blade surfaces over the full width of the two rotors. <IMAGE>
Patent GB-2010440-A (GB)
Title: Fluid Dampers
IPC: F16F9/10
Filed: 1979-01-17
Abstract: A fluid damper which can be used as a check, shock-absorber or time- delay device, comprises a completely closed tube 7 of flexible material which is filled with liquid and pinched between a pair of rollers 8 forming a constriction through which the liquid flows when relative movement takes place between the tube and the rollers. The baffled flow of liquid through the constriction provides a constraint on the relative movement which can be controlled by variation of the materials and the shape, size or loading of the components. The tube 7 moves with the slide 1 of a micrometer, the frame of which carries the rollers 8. One roller is plain cylindrical, the other barrel shaped. <IMAGE>
Patent GB-2019497-A (GB)
Title: A Spray Valve for an Aerosol Can
IPC: B65D83/14
Filed: 1979-03-30
Abstract: In a valve for a pressurised dispenser can and of the type in which a lateral passage 2 controlled by a ball valve 3 permits discharge when the can is inverted, the ratio of the cross- sectional area of the aperture 15 leading into the valve chamber 11, to the cross-sectional area of the dip tube nipple passage 12 is between 1.1 and 1.5. The cross-sectional area of the aperture 16 is 1.5 to 2.0 times greater than the nipple passage area. <IMAGE>
Patent GB-2045887-A (GB)
Title: Pipeline pig
IPC: B08B9/053
Filed: 1979-04-06
Abstract: A pipeline pig including a generally cylindrically shaped body (11) formed of an elastic material, e.g. foamed P.U., the body having a diameter larger than the internal diameter of a pipeline into which the pig is to be thrusted, and a conical portion (12) provided at the forward end of the body, the pig comprising a plurality of spaced pin shaped metal, e.g. iron, members (13) provided on the peripheral surface of the body, each of the pins including a head portion (14) protruding outwardly from the body, a shaft portion (15) radially embedded in the body and an anchoring portion (16) provided at the inner end of the pin, and the pins being made of a material not as hard as that of the pipeline and somewhat harder than that of the substance to be removed or scraped by the pig from the pipeline. <IMAGE>
Patent GB-2019293-A (GB)
Title: Riveted Clutch Plates
IPC: F16D13/64
Filed: 1979-04-20
Abstract: A clutch plate includes a riveted connection between two components. The shank 4 of each rivet terminates in a rivet pin portion passing through a bore in one of the clutch plate components 3 which may be case-hardened. Prior to riveting, the clearance is greater at the outer end of the bore 11 than at the end nearer the rivet shank 4. The clearance may be obtained by the use of a tapered shank portion of the rivet or by a tapered bore surrounding the shank portion. The projecting end of the rivet pin portion 12 is counter bored at 15 and is expanded during riveting to fill the bore 11 without folds or voids. <IMAGE>
Patent GB-2049751-A (GB)
Title: Impregnation of porous articles
IPC: B22D31/00
Filed: 1979-05-11
Abstract: A method of impregnating a porous article with impregnant to seal the pores thereof, which comprises placing the article in a vessel, evacuating the vessel to withdraw air from the pores, releasing the vacuum with the pores beneath the surface of a liquid impregnant in the vessel, removing excess impregnant from the vessel, washing excess impregnant from the surface of the article by supplying washing fluid to the vessel, removing the fluid from the vessel, heating the article while still within the vessel to effect curing of the impregnant within the pores, and removing the impregnated article from the vessel.
Patent GB-2049866-A (GB)
Title: Mine airlock door
IPC: E21F1/10
Filed: 1979-05-22
Abstract: An airlock door for use in mines comprises a door frame with uprights (2, 4) having flared surfaces (6, 8) and a vertically suspended shutter (30) formed of a plurality of shutter elements hinged together by pins (34), so that when the shutter is unfolded, adjacent shutter elements are still inclined to one another. The shutter therefore presents a series (36) of outer folds and a series (38) of inner folds with the shutter elements being wider at the outer folds than at the inner ones so that when the shutter is unfolded, the lateral edges thereof seat against the surfaces (6, 8) to provide a seal against pressure air acting thereon. The hinge pins at the folds (38) are extended to pass into guide channels (55, 56) and serve as a guide whilst the shutter is moved by cables driven by a motor (68). <IMAGE>
Patent GB-2024829-A (GB)
Title: Method and Product for Separation of Glycoproteins
IPC: C07K14/805
Filed: 1979-06-27
Abstract: Glycoproteins, especially glycosylated hemoglobins, are separated from non-glycosylated proteins, by complexing with a dihydroxyboryl reactive agent which may be bonded to a polymaric matrix. The resulting complex can be separated physically from the non- glycosylated protein, making possible the determination of glycosylated hemoglobin content of lysed blood; a reactive agent and a kit are described for use in such determination and as a monitor in the control of diabetic treatment. The invention can also be used preparatively to isolate glycoproteins.
Patent GB-2035176-A (GB)
Title: Multiple wall-cladding element
IPC: B01J3/04
Filed: 1979-11-12
Abstract: To clad the walls of apparatus such as heat exchangers and reactors required to operate at high pressure, there is used a multiple wall-cladding element (2) comprising a plurality of individual wall-cladding elements (3) superposed one upon another and held together by a weld (12) formed on the end faces of the multiple element. The weld fills grooves extending along the end faces of the multiple element, each groove being formed partly in one individual element (3) and partly in an adjacent individual element (3). The multiple element has bleed bores (9), the bleed bores in one individual element (3) communicating with the bleed bores in an adjacent individual element (3) via channels (7) separated from the grooves by ridges (8). <IMAGE>
Patent GB-2040002-A (GB)
Title: Aerosol valves
IPC: B65D83/14
Filed: 1979-12-10
Abstract: An aerosol valve has a valve housing 22 provided with an interrupted peripheral flange 50 that will yield under pressure and permit the housing and the valve gasket 28 to move away from their sealing relation with the pedestal 14 of the mounting cup closure during round the housing filling, and to return to said sealing relation upon terminating the filling operation. A filling head is disclosed which is constructed such that when the filling head 72 is in position for filling with the propellant, the valve body 24 is moved away from the top of the pedestal through engagement of the valve stem or an actuator thereon with a filling stem actuator 84. The valve includes gaseous propellant conduits 40. <IMAGE>
Patent GB-2038512-A (GB)
Title: Stepping motor driven electronic timepieces
IPC: H02P8/02
Filed: 1979-12-10
Abstract: An electronic timepiece has a stepping motor comprised of a stator, rotor and driving coil. A wave shaping circuit produces normal driving pulses and correction driving pulses having a longer pulse width than the normal driving pulses. A rotor rotation detection device detects rotation and non-rotation of the rotor after normal driving pulses are applied to the driving coil and in response to detection of a non-rotation condition, a correction driving pulse is applied to the driving coil. A magnetic field detection device detects the presence and absence of an external alternating magnetic field and in response to detection of a magnetic field, a driving pulse of longer pulse width than the correction driving pulses is applied to the driving coil to effect rotor rotation. The magnetic field detection device operates before the normal driving pulses are applied to the driving coil so that in the event of detection of a magnetic field, a driving pulse of sufficiently long pulse width will be applied to the driving coil to effect rotor rotation. In response to detection of an external alternating magnetic field by the magnetic field detection device, operation of the rotor rotation detection device is inhibited thereby conserving power and preventing mis-operation of the stepping motor.
Patent GB-2065404-A (GB)
Title: Voltage selector circuit
IPC: H03K17/00
Filed: 1979-12-11
Abstract: In a voltage selector circuit, a plurality of supply voltages (V0, V1, V2) are respectively supplied to a plurality of switching elements formed of MOS transistors (11, 12, 13, 14, 15) which are turned on and off according to the voltage levels of input signals (A0, A1) supplied thereto to provide a selected one of the supply voltages at output terminal (B0). The substrate electrode of transistor 15 is selectively connected to supply voltages V1, V2 via further switching transistors 17, 18 which are also controlled by signal A0, A1 such that the drain/ substrate diode is never forward biassed, thereby reducing power loss in the circuit. <IMAGE>
Patent GB-2046567-A (GB)
Title: Ensilaging vegetable matter
IPC: A23K3/03
Filed: 1980-02-12
Abstract: A process for the preservation of vegetable material by lactic acidification which comprises admixing the vegetable material prior to ensilaging the same, with bacteria capable of initiating lactic fermentation, and enzymes and/or bacteria adapted to degrade higher glucides into fermentable sugars used by the bacteria initiating the lactic fermentation. The enzymes comprise a defined cellulolytic complex of fungal origin. The bacteria comprise Gram -ve bacteria belonging to the family of Enterobacteriaceae type Erwinia or Pectobacterium, group Herbicola, of the new species Enterobacter agglomerons, which breaks down starch, but not maltose. This composition with an enzyme and/or bacteria base, is incorporated on a cereal support.
Patent GB-2044855-A (GB)
Title: A hydraulic pit prop for wall lining
IPC: E21D15/44
Filed: 1980-02-29
Abstract: A hydraulic pit prop A has its hydraulic fluid chamber connected to a pressure relief valve B with a valve slide 3 arranged so that when it opens it entrains a piston 4 of a gas spring C against the gas pressure of the latter. The pressure relief valve does not vent hydraulic fluid until it and the piston 4 have moved through a predetermined stroke, whereupon a valve member 11 opens and allows hydraulic fluid to flow through ports 6 in the valve slide 3 and 7 in the valve housing, brought into line by the movement of the valve slide. <IMAGE>