baber/WOPTO huggingface dataset:
Patent GB-1133486-A (GB)
Title: Servo-system control valve
IPC: F15C4/00
Filed: 1965-11-23
Abstract: 1,133,486. Fluid-pressure servomotor systems. R.J. IFIELD & SONS PTY. Ltd. Nov. 23, 1965 [Nov.24, 1964], No.49690/65. Heading G3P. A chamber A above a servo-piston 6 is connectable by valve 12 to a chamber B below the piston or to exhaust via passages 17, 20, 21, chamber B being connected at 14 to a pressure fluid supply. Valve 12 is integral with a piston 13 loaded by a spring 24 and defining a chamber C that communicates with the supply via a restricted orifice 26 and duct 25, the outer end of the latter having a seat 27 co-operable with a valve member 29 loaded towards the seat by pressure in a chamber 31 acting on a diaphragm 32. The valve 29 thus maintains a predetermined pressure in chamber C. The servomotor may control the delivery pressure of a pump, in which case the delivery line communicates with port 14. When the delivery pressure exceeds a predetermined value as determined by spring 24 and the pressure in chamber C, valve 12 is moved to the left to supply chamber A to cause downward movement at piston 6 to reduce the delivery pressure. In Fig.3 (not shown), valve 28 is adjustably loaded by spring 38 but may be unseated to actuate valve 12 in response to a pressure transmitted to a chamber 44 and acting on diaphragm 43, such pressure being a measure of the speed, torque or output flow of the pump. In Fig. 4 (not shown), loading spring 48 and diaphragm 49 act on valve 28 via lever 47, the arrangement being such that the load on valve 28 is determined by diaphragm or the spring according to whichever has the lesser effect at the time being. The valve 28 may have a guide stem 30 or a throttling extension 37 Fig. 2 (not shown), alternatively the valve may be conical or in the form of a ball. Piston 13 may be replaced by a diaphragm and diaphragm 32, which may be assisted by spring- loading, may be replaced by a piston or bellows. The differential piston 6 may be replaced by one having equal areas, in which case two valves such as 12 are used to cause the pressure in one chamber to rise and the pressure in the other chamber to fall. A number of valves such as valve 12 may be employed to control a similar number of servomotors.
Patent GB-1274232-A (GB)
Title: Improvements in tyre-repair plugs
Inventor: WILSON RONALD STANLEY
IPC: B60C/
Filed: 1968-10-21
Abstract: 1,274,232. Tyre repair plugs. R. S. WILSON, and A. LEGG. 20 Oct., 1969 [21 Oct., 1968], No. 49899/68. Heading B7C. A rubber plug for repairing a puncture in a tubeless tyre or in the outer casing of a tubed tyre comprises a head 2 and a stem having large and small cylindrical portions 8 and 10 interconnected by a tapered portion 12, and the large stem portion 8, which is joined to the head, having a plurality, e.g. four, of circumferentially spaced recesses 14, or projections (not shown). The tyre-contacting face 4 of the head may have a layer of natural rubber covered for protection prior to use by paper.
Patent GB-1095743-A (GB)
Title: Flame retardant epoxy resin compositions
Inventor: RUYTER KLAAS
IPC: C08L63/00
Filed: 1966-11-08
Abstract: A curable flame retardant composition comprises: (a) a polyepoxide, (b) a substantially hydroxyl-terminated polyester obtained by reacting a polyol having at least three hydroxyl groups with a halogenated dicarboxylic acid or derivative thereof, and (c) a polycarboxylic acid anhydride; the composition contains at least 5% by wt. of halogen based on the combined wt. of (a), (b) and (c).  (a) may be a cycloaliphatic polyepoxide, e.g. 3,4-epoxy-6-methylcyclohexylmethyl - 31,41 - epoxy - 61-methylcyclohexane carboxylate, or a polyglycidyl ether of bisphenol-A; it may have a viscosity of <500 poises at 25 DEG  C.; (c) may have a m.p. <60 DEG  C., e.g. hexahydrophthalic anhydride. The polyester (b) may be obtained by reacting a polyol with a halogenated dicarboxylic anhydride, e.g. chlorendic anhydride. It may have an acid value of <15 mg. KOH/g. and be produced by reacting the polyol and halogenated dicarboxylic acid in such ratios that for each carboxyl group 1.6 to 2.2 OH groups are present.  The polyepoxide (a) and the anhydride (c) may be present in such amounts that the equivalent ratio between epoxy and anhydride groups is at least 0.5. The polyester (b) may be present to provide 1/20 to 1 hydroxyl group for every anhydride group of the polycarboxylic acid anhydride. A curing activator may be present, e.g. at 0.1 to 2% by wt. of the composition.  The composition may be cured by heating to >80 DEG  C., e.g. 100-200 DEG  C.
Patent GB-1284744-A (GB)
Title: Improvements in or relating to lockers
Inventor: RUDD KENNETH NORMAN
IPC: A47B49/00
Filed: 1969-10-14
Abstract: 1284744 Cabinets; stands K N RUDD 15 Dec 1970 [14 Oct 1969] 50455/69 Heading A4B and A4H A locker, Fig. 1, is provided in its upper and lower walls 1, 2 with apertures 11 through which a pole 4, e.g. a sunshade pole, may be passed, and means is provided within the locker for securing the locker against vertical displacement on the pole 4 so that when the door or doors 7 of the locker are locked closed the locker cannot be removed from the pole 4. The securing means may comprise a grub screw 5 engaged through a tube 3 secured at one or both ends to the walls 1, 2 of the locker. The tube ends may be secured by rings 10 or by integral flanges. Various shapes of locker and door dispositions are described, Figs. 2-5 (not shown). In another embodiment, Fig. 6, dished upper and lower parts 6A, 6B of the locker carry threaded bosses 16 engaged by the oppositely threaded ends of a connecting tube 18. Alternatively an arcuate or tubular side wall of the locker and an arcuate sliding door may be located in grooves in upper and lower discs defining the top and bottom of the locker. In a modification of Fig. 1 the rings 10 are not secured to the upper and lower walls 1, 2 so that the upper wall rests on and is rotatable on the upper ring 10. In a further embodiment, Fig. 7, a rotatable locker comprises an upper disc 1 with an arcuate wall 6A and a lower disc 2 with an arcuate wall 6B, the discs 1, 2 carrying tubes 11A, 11C. A control tube 3 with a bottom flange or ring 19 is engaged in the tubes 11A, 11C, the latter being spaced apart by a tube 11B fitted on the central tube 3. A locking screw 5 in the tube 11B passes through an aperture 20 in the central tube 3 to lock the latter on a pole whilst permitting relative rotation of the discs 1, 2 and their associated walls 6A, 6B. Alternatively the tube 11B may be omitted in which case the tube 11C is larger and carries the screw 5. The lower disc 2 may be perforated for ventilation.
Patent GB-1494539-A (GB)
Title: Arc electrode for a contact arrangement in a vacuum switc
IPC: H01H33/664
Filed: 1975-12-10
Abstract: 1494539 Contact electrode structure SPRECHER & SCHUH AG 10 Dec 1975 [10 Jan 1975] 50661/75 Heading H1N In an are electrode assembly, for a vacuum switch, comprising a contact element carrying an array of spaced-apart electrode plates which take up the arc root, the electrode plates are stiffened by having rows of depressions in at least one face, preferably forming corresponding projections in the opposite face, their surface area thereby being increased. Apertures may also be provided, e.g. rows of holes through the plates to alter the current flow path. The preferred embodiment provides a hollow cylindrical contact member carrying internally an array of radially-extending plates with a central gap, but other forms are envisaged, e.g. having a U- shaped contact member.
Patent GB-1280633-A (GB)
Title: Improvements in and relating to the production of powdered or granular materials
Inventor: DUX ERIC FERDINAND WILLIAM
IPC: A23F3/26
Filed: 1968-10-25
Abstract: 1280633 Freeze drying J LYONS & CO Ltd 27 Oct 1969 [25 Oct 1968] 50741/68 Heading F4G Granular material is produced by subjecting a liquid containing the material to a gas under pressure, freezing the liquid, granulating the frozen liquid and drying the frozen granulate. Tea extract is subjected to carbon dioxide at high pressure and is cooled on the surface of a rotating drum. When the liquid is near its freezing point the pressure is removed and the freezing process completed. The frozen extract is then granulated and freeze dried. The final solids content is dependant upon the pressure of the carbon dioxide.
Patent GB-1482870-A (GB)
Title: Packages
IPC: B65D75/66
Filed: 1975-12-12
Abstract: 1482870 Packages FR HESSER MASCHINENFABRIK AG 12 Dec 1975 [14 Dec 1974] 50937/75 Heading B8P A package comprises a closed, bag-like outer wrapping 2, a tubular reinforcement 4 connected at least at regions to the outer wrapping 2 and a tear-off strip 3 which is fixed to the wrapping 2 and releasably glued to the reinforcement 4. The wrapper, which may be of single or multilayer foil, defines a finseal top closure 8 covered by a label 10, and the reinforcement 4 may be of cardboard.
Patent GB-1118456-A (GB)
Title: Method of and apparatus for producing test pieces of moulding sand or like materials
IPC: G01N33/26
Filed: 1965-12-01
Abstract: 1,118,456. Testing sand. GEORG FISCHER A.G. Dec. 1, 1965 [Dec. 2, 1964], No.51067/65. Heading G1S. In apparatus for forming a test mould of sand or like mouldable material, a filling tube 10 and test piece tube 9 are first jotted by a movable bed member 5 actuated by an eccentrically rotated cam 4 to pre-compact the sand, the upper end of the filling tube 10 being closed by the press-plate 12 of a ram 18. The filling tube is then sheared off and the press-plate 12 reversed to extend into the tube 9 and rammed into the tube 9 by means 18 for further compaction of the sand.
Patent GB-1292085-A (GB)
Title: Devices for the spectrographic analysis of molten metals
IPC: G01N21/69
Filed: 1970-10-27
Abstract: 1292085 Photo-electric control systems SOC FRANCAISE D'INSTRUMENTS DE CONTROLE ET D'ANALYSES 27 Oct 1970 [28 Oct 1969] 51075/70 Heading G1A [Also in Division G2] To ensure that a spectrograph 14 is always viewing the most intense part 8 of an electric arc an intermediate device 10 is provided having an optical system 23-25 including a concave mirror 23 whose position is servocontrolled, the control signal being derived from a photo-cell arrangement (33) Fig. 2 (not shown) responsive to intensity fluctuations in a monitoring beam 42 to position the mirror 23 so that it always focuses the most intense part of the arc on to the spark point 38 of the spectrograph. The photo-cell device comprises two groups of two photo-electric cells disposed in opposite pairs in two perpendicular directions. Each pair of cells controls a pivoting movement of the mirror 23 about one of two orthogonal directions. The device may be evacuated through a tube 16, or transparent gas may be introduced therethrough. Such gas may also be flowed through a tube 11b to maintain an inert atmosphere between the arc and a quartz window 18 of the device. A refrigeration circuit 11a is also provided. An optical fibre bundle extending from the spark point 38 to the entrance slit 40 of the spectrograph may replace the lens 20, in which case a gas tight seal must be provided around the bundle at the aperture 19. Similarly, a tubular light guide within which is contained a transparent gas may conduct radiation from the arc to the entrance aperture of the device. In a further embodiment Fig. 3 (not shown) the mirror 31, lens 32 - which may be of variable focal length - and photo-cell arrangement are contained within a housing (43) attached to the body of the device 10.
Patent GB-1096688-A (GB)
Title: Improved actuating device for frames of windows, doors and the like
IPC: E05D15/52
Filed: 1964-12-16
Abstract: 1,096,688. Stays; window operating mech-anism. W. WEBER. Dec. 16, 1964 [Dec. 18, 1963], No. 51140/64. Headings E2F and E2M. In an arrangement of stays for windows of the type pivotable alternatively about both a horizontal and a vertical axis, a control arm 8 which is operated by a linkage 11 is connected to an actuating arm 3 by a pivot pin 7, and two guide pins 13, 14 which move through two arcuate slots 15a, 16a and keep the free edge of the moving frame 2 parallel to the fixed frame 1. When the window is locked the guide pins 13, 14 are retracted into straight portions of the slots 15b, 16b respectively. The pivot pin 7 may have an extension 7a that engages into a locking plate 17 so that the moving frame 2 can be locked to the fixed frame 1. To provide additional support for the moving frame 2 a supporting arm 18 may be provided which is attached at the fixed frame 1 so as to pivot about the vertical pivoting axis of the moving frame 2. For wide windows an extra control arm. (20), (Fig. 4 not shown) and actuating arm (19) may be used.
Patent GB-1321275-A (GB)
Title: Separation of metal carbonyl catalysts from oxo reaction mixtures
IPC: C07C45/50
Filed: 1970-10-28
Abstract: 1321275 Separating metal carbonyl catalysts from oxo mixtures BADISCHE ANILIN- & SODA-FABRIK AG 28 Oct 1970 [29 Oct 1969] 51165/70 Heading C1A [Also in Division C2] Metal carbonyl catalysts (e.g. Co or Rh) are separated from an oxo reaction mixture containing H 2  and CO by passage of the mixture through a basic ion exchange resin at temperatures of 0-120‹ C. and pressures from 5-700 atmospheres thereby forming metal carbonyl hydrides. The ion exchange resin may contain primary, secondary, tertiary or quaternary amino groups. The Oxo mixture may be produced by the reaction of olefinically unsaturated compounds with up to 20 carbon atoms.
Patent GB-1482340-A (GB)
Title: Phosphorus removal from waste water
IPC: C12N1/20
Filed: 1975-12-16
Abstract: 1482340 Phosphate removal by microorganisms UNIVERSITY PATENTS Inc 16 Dec 1975 [18 Dec 1974] 51497/75 Heading C1C A process for enhancing the orthophosphate removal capacity of a continuous culture activated sludge sewage treatment system comprises introducing, into the sludge, a bacterial inoculant comprising a cultured growth of the micro-organism Acinetobacter phosphadevorus. The inoculant product itself, for use in sewage treatment, may be cultivated in acetate broth, incubated for 36 hours at 25 C., and harvested. The orthophosphate in the effluent from a sewage treatment system inoculated with the micro-organism fell by 87%.
Patent GB-1125592-A (GB)
Title: Polymerization process, and products produced thereby
IPC: C08F4/70
Filed: 1965-12-06
Abstract: 1,125,592. Polymers of dienes and olefin oxides. PHILLIPS PETROLEUM CO. 6 Dec., 1965 [7 Dec., 1964], No. 51670/65. Heading C3P. Polymers of conjugated dienes, and copolymers of olefin oxides and one or more copolymerizable vinylidene-type monomers, are made by effecting the polymerization in the presence of a catalyst prepared by mixing, (1) one or more organozinc or organoaluminium compounds of the formulµ, R 2 Zn, R 3 Al, RAlX 2 , and R 2 AlX, where R is a saturated aliphatic or cycloaliphatic radical containing up to 20 carbon atoms, or aromatic radical and X is halogen, with (2) an iron, cobalt, nickel, or molybdenum salt, or the reaction product of such a salt with ammonia, an amine, or an amide, except in the case where the monomer system contains only conjugated dienes component (2) of the catalyst is a reaction product of an iron salt with an N,N-dimethylamide of a fatty acid. Specified olefin oxides are ethylene oxide, propylene oxide, 1,2-epoxybutane, 1,2 - epoxy - 2 - methyl - propane, styrene oxide, epoxycyclopentane, and epoxycyclohexane. Specified dienes are butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 1,3-hexadiene, and chloroprene. The Specification contains lists of copolymerizable monomers selected from 1-olefins, conjugated dienes, and unsaturated nitriles. Exemplified copolymerizable monomers are isobutene, 1,3- butadiene, isoprene, chloroprene and acrylonitrile. Exemplified catalysts are (1) triisobutylaluminium and a complex of cobaltous chloride and an N,N-dimethylamide derived from a mixture of C 6  to C 12  fatty acids, (2) triisobutylaluminium or ethylaluminium sesquichloride and a complex of molybdenum pentachloride as in (1), (3) the same aluminium compounds as (2) with a complex of nickelous or cobaltous chloride and pyridine or cobaltous octoate and (4) triisobutylaluminium and the reaction product of ferric chloride with the same mixture of amides as in (1). The products of polymerization are recovered by conventional techniques and may be solids, or viscous liquids.
Patent GB-1361709-A (GB)
Title: Apparatus for electrolytically refining metals
IPC: C25C7/00
Filed: 1972-11-10
Abstract: 1361709 Electrolytically refining metals; granulating metals EUROPEAN ATOMIC ENERGY COMMUNITY 10 Nov 1972 [12 Nov 1971] 51921/72 Heading C7B and C7X Metal to be refined electrolytically is dissolved as anode in a bath (e.g. a molten bath) and electrolytically deposited on a moving metal strip cathode 7. When the strip reaches a scanning plasma torch 13, both the strip itself and the metal deposited thereon are melted. The molten metal falls on to a rotating disc 14, is spattered against a cold wall 15 and falls into a recovery tank 16 where resultant metal balls collect. Both the electrolytic bath and plasma torch are enclosed within a fluid-tight chamber 17 which contains an inert gas (e.g. argon) supplied by the plasma torch. The strip enters the chamber 17 through a lock chamber 10 and the product discharges through an arrangement 18 which also serves as a lock chamber. The tank is connected as anode and the impure metal is placed on the tank bottom in compartments (5), Fig. 2 (not shown), defined by diaphragms (6) of porous metal, refractory material or of graphite. The bath can be heated or cooled by means not shown. The strip 7 can be of the same metal as the metal to be deposited in order to obtain a pure metal or can be different in order to obtain alloys. The metal balls produced by the method can be remelted in vacuo to obtain very high-quality ingots. In a modification, the cathode is not a continuous strip but is a continuous series of rectangular plates moving through the electrolytic bath in a vertical position.
Patent GB-1411834-A (GB)
Title: Light-cord concealing chain device
IPC: F16G13/16
Filed: 1973-11-09
Abstract: 1411834 Chains D E PETERS 9 Nov 1973 52104/73 Heading F2Q A link chain, for concealing an electrical lead and supporting a pendant light fitting, comprises a series of links each having a planar central portion with a lead-receiving aperture 22a, and two oppositely bent pairs of legs 16a, 16b, 16c, 16d, connected to the legs of adjacent links by rings 18, by semicylindrical parts (18b<SP>11</SP>, Figs. 6 and 7, not shown), with key ends engaging keyholes in the legs, or by similar keys integral with one pair of legs engaging keyholes in the other (Figs. 5, 8 and 9, not shown). The flat blank before bending may be in the form of a cross (Fig. 9, not shown); slitted square (Fig. 8, not shown), or apertured circular disc (Fig. 10, not shown). The material may be metal such as steel, iron, copper, brass, tin, or aluminium; or plastics such as polypropylene, acrilic or polyvinyl.
Patent GB-1128208-A (GB)
Title: Improved hospital bed-operating table
Inventor: SILK FREDERICK FENDLEY
IPC: A61G13/00
Filed: 1964-12-29
Abstract: 1,128,208. Surgical traction apparatus. CHAS. F. THACKRAY Ltd. 13 Dec., 1965 [29 Dec., 1964], No. 52624/64. Heading A5R. A spinal traction table which is mounted on a wheeled support has an angularly adjustable back rest 23 and head rest 30, means for supporting skull calipers 40 and means for adjusting the inclination of the table laterally and longitudinally. The table top 5 is supported on a pillar by a universal joint 6 and is adjustable about lateral and longitudinal axes by handwheels 12, 19. It is raised and lowered by a foot-controlled hydraulic ram in the pillar. The head rest 30 is hinged to the back rest 23 by hinges 31, including spigot and socket joints, so that it is detachable. A frame 41, which extends from the head rest and is longitudinally and laterally adjustable and may be swivelled to either side, carries a pulley 42. The pulley 42 is adjustable in height and supports a wire rope between skull calipers 40 and an adjustable weight 47 for applying traction to the spine. The table also has a foot-rest 48 adjustable longitudinally of the top and an adjustable knee rest 55.
Patent GB-1081848-A (GB)
Title: Improvements in or relating to methods of s tacking
IPC: B65H45/101
Filed: 1965-12-13
Abstract: 1,081,848. Sheet stacking apparatus. SIEMENS A.G. Dec 13, 1965 [Dec. 14, 1964], No. 52760/65. Heading B6H. Sheet stacking apparatus for single sheets or continuous zig-zag folded stationery 4 is provided on one side of the formed sheet with a perforated frusto-conical air inlet box 7 attached to an axial flow fan 6 to induce suction and prevent the formation of air cushions beneath the stacked sheets. Stack is formed on a trolley 1 on which the fan is mounted on a pedestal block 8 and retained thereon by nuts 9.
Patent GB-1204335-A (GB)
Title: Rolling mills
Inventor: HOWARD DAVID ROBERT
IPC: B21B37/66
Filed: 1967-11-21
Abstract: 1,204,335. Automatic control of rolling. DAVY & UNITED ENG. CO. Ltd. Nov.21, 1968 [Nov.21, 1967], No.52853/67. Heading G3R. [Also in Division B3] Electrical signals corresponding to the rolling load of a rolling mill and the thickness of material entering the rolls are utilized to derive a signal, predominantly responsive to thickness variations due to eccentricity and/or ovality of the rolls, which is applied to adjust the roll gap to reduce such variations. As shown, strip material from an uncoiler 11 passes between mill rolls 1, 2 to a coiler 12 and output thickness is automatically  regulated by electrical signals from an output thickness gauge 18 and a load cell 7 responsive to the rolling load, which are combined in a unit 14 to control both a hydraulic unit 9 determining the load applied to the rolls and a motor 13 determining the back tension applied to the material. Signals from an input thickness gauge 19, suitably delayed at 20, correspond to input thickness variations at rolls 1, 2 and signals from the load cell 7 also correspond to these variations and to other causes such as eccentricity and/or ovality of the rolls. By comparing these signals at 21, their ratio is obtained for the component of the load signal which corresponds to input thickness variations. This latter component is then obtained by suitable multiplication at 21<SP>1</SP> and subtracted from the load variations at 23. The variations due to eccentricity and/or ovality are then selected from the remaining variations by rate follow-up servo-systems 24 adjusting potentiometers supplied with sine and cosine signals from a generator driven by a backup roll 3, so that signals of a suitable phase are applied through an amplifier 25 to control hydraulic unit 9 and thereby reduce the effects of eccentricity and/or ovality by adjustment of the rolling load. Servo-adjusted potentiometers supplied from a sine-cosine generator deiven by the other back-up roll 4 may apply further signals to amplifier 25. A similar control system may be arraged for each stand of a multi-stand rolling mill, the signals from the load cells associated with each stand being suitably delayed to provide indications of input thickness at the next stand without the need for thickness measurements between stands.