baber/WOPTO huggingface dataset:
Patent GB-1457194-A (GB)
Title: Disazo pigments process for their manufacture and use
IPC: C08L67/00
Filed: 1974-10-30
Abstract: 1457194 Disazo pigments CIBA GEIGY AG 30 Oct 1974 [30 Oct 1973] 46922/74 Heading C4P Disazo pigments of formula in which A is an optionally substituted phenylene or naphthylene radical, R is an aromatic radical containing a -Z-CONH- group bonded in a cyclic structure in which Z is an atom or group of formula -NR 1 - -OCH 2 -, -CONH-, -NHCO-, or -O-, and R 1  is an H atom, a C 1  to C 4  alkyl group, a cycloalkyl group containing 5 or 6 carbon atoms or a phenyl group optionally substituted by halogen atoms, alkyl or alkoxy groups containing 1 to 4 carbon atoms with the proviso that R does not contain an -NHSO 2 - group are prepared by coupling a diazo or diazoamino compound of an amine R-NH 2  with a coupling component CH 2 COCH 2 CONH-A-NHCOCH 2 - COCH 3  in a molar ratio of 2 : 1. The pigments may be filtered off and after-treated with organic solvents, e.g. xylenes, chlorobenzene, o-dichlorobenzene, nitrobenzene and pyridine, at temperatures of 100-150‹ C. The coupling may be effected in an organic solvent preferably in presence of an acid. Yellow, orange and greenyellow shades are obtained when these pigments are used to colour cellulose ethers and esters, polyamides, polyurethanes, polyesters, aminoplasts, polycarbonates, polyolefins, polyacrylonitrile, rubber and silicone resins, in the form of plastic masses or melts.
Patent GB-1064066-A (GB)
Title: Improvements in and relating to the production of esters
Inventor: CLARK Duncan
IPC: C07C69/01
Filed: 1963-11-28
Abstract: In a process for preparing vinyl acetate by contacting ethylene with a palladium salt in the presence of acetic acid, acetate ions, a redox system and molecular oxygen, which produces a mixture of vinyl acetate and acetaldehyde in a range between 1 : 10 to 10 : 1, the acetaldehyde is removed and at least part oxidized to acetic acid and/or acetic anhydride which is then recycled to the vinyl acetate production step.  The acetaldehyde oxidation may be in the liquid phase under pressure by oxygen or air in the presence of a copper, cobalt, nickel or manganese acetate or oleate or a mixture thereof as catalyst and acetic acid, ethyl acetate and ethylidene diacetate which are by-products may also be present.  Examples of the process operated continuously are described.
Patent GB-1068003-A (GB)
Title: Function computer
IPC: G06G3/06
Filed: 1965-11-08
Abstract: 1,068,003. A/D converters. R. BAGGIO, and E. M. M. E. VOILLAUME. Nov. 8, 1965 [Nov. 17, 1964; Sept. 15, 1965], No. 47277/65. Heading G4H. [Also in Division G3] A disc H carries a family of curves which are such that the difference in the numbers of curves intersected at opposite ends of a diameter D, D<SP>1</SP> is proportional to a trigonometric function of the angle α between DD<SP>1</SP> and a reference diameter OO<SP>1</SP>. The curves are scanned by a pair of photo-cells X 1 , X 2  which are reciprocated in proportion to a Scalar quantity V, the pulses produced by X 1 , X 2  operating respective pawl-and-ratchet mechanisms j 1 , j 2  coupled to a differential m. Counter r therefore integrates a quantity such as V sin α or V cos α. In practical embodiments, the constructional features of which are described in detail, either the amplitude or the origin of each scanning movement of the photo-cells is varied over a number of cycles, this being shown to increase the accuracy of the system. The device is used in land vehicle navigation and machine tool control systems.
Patent GB-1163332-A (GB)
Title: A process for Stabilizing Polyarylsulphone Polymers
IPC: C08G75/20
Filed: 1966-10-24
Abstract: 1,163,332. Heat stabilized polyarylsulphone polymers. MINNESOTA MINING & MFG. CO. 24 Oct., 1966 [23 Oct., 1965], No. 47720/66. Heading C3R. The heat-stability of polyarylsulphone polymers having sulphonyl radical-containing terminal groups, is improved by contacting them with an alkali metal or alkaline earth metal or a derivative thereof. A solution of the polymer may be contacted with a solution of a metal compound, or solid polymer may be contacted with a solution of a metal compound, or a solution of the polymer may be contacted with elemental alkali metal or alkaline earth metal. In examples polymers prepared from diphenyl ether disulphonyl chloride, diphenyl and diphenyl monosulphonyl chloride, in the solid state and in solution in nitrobenzene and dimethylformamide, are contacted with solution of sodium methoxide in methanol, sodium hydroxide in water, sodium phenoxide in phenol, lithium methoxide in methanol, magnesium methoxide in methanol, magnesium benzoate in dimethylformamide, sodium carbonate in water, lithium hydroxide in water and calcium acetate in water.
Patent GB-1072452-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02F1/24
Filed: 1963-12-04
Abstract: 1,072,452. I. C. engine valve gear, inlet and exhaust passages. D. ODAWARA. Dec.4, 1963 [Dec. 5, 1962], No.47892/63. Heading F1B. In an I. C. engine in which suction and exhaust switching valves 11, 11<SP>1</SP>, and 17, 17<SP>1</SP> are located at the extremities of suction and exhaust passages 5, 6 joined by a common passage 14, mushroom sealing valves 7, 7<SP>1</SP> are operated in unison to control both inlet and exhaust the combustion chamber. Operation. During the induction stroke sealing valves 7, 7<SP>1</SP> and suction switching valves 11, 11<SP>1</SP> are open and exhaust switches valves 17, 17 are closed. At the end of the induction stroke sealing valves 7, 7<SP>1</SP> and switching valves 11, 11<SP>1</SP> close and the charge is compressed and combusted. On the exhaust stroke sealing valves 7, 7<SP>1</SP> and switching valves 17, 17<SP>1</SP> are open to discharge the exhaust ports.
Patent GB-1157575-A (GB)
Title: Apparatus for Relieving an Overhead Condition Occuring in a Hydraulic Circuit.
IPC: B30B15/28
Filed: 1966-10-26
Abstract: 1,157,575. Stamping. E. W. BLISS CO. 26 Oct., 1966 [19 Nov., 1965], No. 48065/66. Heading B3Q. [Also in Division G3] Means for relieving hydraulic pressure, e.g. in the slide-chamber 13 of a mechanical press upon overload, comprises an adjustable counter-balancing device 25 for sensing an overload and co-operating with a circuit leading from the chamber to release hydraulic fluid upon overload. Thus the slide may stop while its drive crank and connecting-rod 12 continue to operate. The chamber 13 is supplied, through a check valve 36, by a pump 15, the hydraulic fluid also acting, by means of a plunger 29, on one side of a beam 25 supported on a knife-edge 26. Bearing on a screw-threaded abutment (34), Fig. 2 (not shown), on the other side of the beam is a plunger 33 forced against the beam by compressed-air or other gas or hydraulic fluid at a regulated pressure which may be varied, as by cams, during the press-stroke. A gauge 19 indicates slide-force. In the event of an overload, the beam operates a switch 24 containing a solenoid-valve 18 which permits a valve C to open, allowing escape of fluid from the chamber 13. Alternatively, the switch 24 may operate valve C direct, by a solenoid.
Patent GB-1161318-A (GB)
Title: Rolling Mills
Inventor: STUBBS DENNIS
IPC: B21B31/10
Filed: 1965-11-15
Abstract: 1,161,318. Rolling. DAVY & UNITED ENG. CO. Ltd. 16 Nov., 1966 [15 Nov., 1965], No. 48335/65. Heading B3M. A rolling mill includes screw-operated adjustable spacers acting between the chocks 14, 15 of backing rolls 16, 17, and mounted between the mill housings 12 and work roll chocks 25, 26. Each spacer includes a block 21 fixed relative to a housing 12 and supporting an internally threaded cylinder 36 and a meshing piston 32. The piston is prevented from rotation by keys 33 interacting with a fixed sleeve 31, but is slidable axially, to vary the spacing between the chocks 14, 15, by rotation of the cylinder 36. A shaft 41, driving a worm 40 and internally splined worm-wheel 38, rotates the cylinder 36. Removal of the work rolls is facilitated by means of wheels 44 carried by the chocks 26, and rails 45 fixed to the blocks 21, 22. Wheels 46 and 47 are similarly provided for the chocks 15, while projections 50 on the housings serve to support the chocks 14. Prestressing of the roll assemblies is effected by an hydraulic ram 43, while load cells 35 are disposed beneath the pistons 32 for control purposes. In an alternative arrangement, the spacers are slidable vertically relative to the housings and enclose screw-operated wedges which adjust the separation of the chocks 14, 16 by means of vertically slidable plungers with oblique inner ends.
Patent GB-1029430-A (GB)
Title: Roller cotton gin and method of operation
IPC: D01B1/06
Filed: 1963-12-09
Abstract: 1,029,430. Gins. CONTINENTAL GIN CO. Dec. 9, 1963 [July 31, 1963], No. 48518/63. Heading D1N. A roller gin has a rotary member with radial blades so arranged that the blades sweep close to the line at which the ginning roller and ginning knife engage. The speed at which cotton is fed to the ginning elements is determined by feed rollers 30 which may be driven by a hydraulic motor supplied with fluid through a valve that is adjustable to control the feed roller speed. The rollers 30 forward the cotton to a feed wheel 32 from which it passes down slides 34 and 50 to a rotary member 52 that transfers it to ginning roller 56 which is urged against the ginning knife 60. The ginning roller 56 has a leather or rubber-like surface which moves towards the knife 60 more rapidly than the tips of the blades of the rotary member 52. Because of this speed difference fibres tend to be drawn out ahead of seeds and some pre-ginning takes place before the fibres are pulled under the knife 60. Fine adjustment of the rotary member 52 is possible by screwmounted brackets which carry the bearings of this member. Several such rotary members may be employed to perform sucessive retarding actions on the seeds. Adjustment of the ginning roller 56 relative to the knife 60 is effected through a fluid pressure system which includes pistons on either side of the gin linked to sliding members that support the ginning roller bearings. The electrical control system for gin is so associated with the fluid pressure system that when the electric driving motor stops the roller 56 is moved away from the knife 60, thus avoiding damage to the roller cover from the hot knife. A form of ginning roller is described (Fig. 12, not shown) that is hollow and expansible with a support on one side which permits the exchange of sleevelike covers . Instead of tightly fitting roller covers hands may be employed that pass over an idler roller in addition to the ginning roller. Fibres separated from the seeds are removed by way of a duct 18. Unginned seeds are separated from ginned seeds and conveyed back to the feed hoppers.
Patent GB-1155449-A (GB)
Title: Container Handling Apparatus
Inventor: MENCACCI SAMUEL ALFRED
IPC: B65B43/52
Filed: 1967-10-26
Abstract: 1,155,449. Conveyers. INTERNATIONAL MACHINERY CORP. S.A. 26 Oct., 1967 [30 Nov., 1966], No. 48635/67. Heading B8A. Carriers 44 on a turret 40 move selected containers C out of their path on a conveyer 32 and upwards into engagement with a sealing head (46) (Fig. 3, not shown), each non-selected container C moving on to a support 120 of the turret 40, there being deflecting means carried by the turret to deflect the non-selected container from the support and so maintain it in the conveyer path. In Fig. 2 alternate containers are selected, the remaining containers being fed to a second turret 42 similar to the turret 40. The selected containers are engaged between a semicircular shaped recess on a plate 208 rotating with the head 40 and a similar recess on a wheel 211. The heads 40, 42, wheel 211 and a recessed wheel 186 co-operating with the head 42 are all driven by gearing (Fig. 5, not shown) in synchronism with the conveyer 32. The non- selected containers arrive at the head 42 in time to be engaged by a recess 208 having a profile of combined concave and convex form which is adapted to deflect the container of the support 120 and thus maintain it on the conveyer 32. In a modification (Fig. 19), the non-selected containers C2, C4 . . . are engaged by an arm 233 which is pivotally mounted on the platform 120 by a pin 236. The arm 233 is deflected by the action of an arm 242 which at one end carries a pin 239 engaging a slot 238 in the arm 233. At its other end the arm 242 is rigidly connected to a shaft 243 which is connected to an arm 244. The latter has at its other end a cam follower 245 which rides in a circular cam track 246 formed in a fixed part of the apparatus. This has a reduced diameter section which causes the arm 244 to be deflected at the appropriate moment. An alternative form of this modification is also described (Figs. 12-16, not shown).
Patent GB-1533880-A (GB)
Title: Impact fuse for a projectile
IPC: F42C15/23
Filed: 1975-11-26
Abstract: 1533880 Projectile fuzes RHEINMETALL GmbH 26 Nov 1975 [7 Dec 1974] 48683/75 Heading F3A A projectile fuze effective against "hard" and "soft" targets, comprises a casing 1, 2, a pressure distribution plate 6, a piezo-electric crystal 7, a back plate 8 carrying a transverse bolt 9, an insulated helical spring or a foamed rubber ring 14, and an insulated,electricallyconductive, spring steel wire having a bared end 12a looped and twisted around the transverse bolt 9 and having its other end connected to an electrical detonator located at the rear of the projectile. Upon impact with a "hard" target, and and whatever the striking angle, the plate 6 is driven rearwards and compresses the piezoelectric crystal, the current from which is conducted to the detonator by the spring steel wire to effect detonation. Upon impact with a "soft" target, the retardation force causes the back plate 8, the crystal 7 and the pressure plate 6 to be displaced against the force of the spring or ring 14, and, when the plate 6 contacts the casing 2, the electrical circuit passing through the projectile casing to the detonator is closed and the electrical energy generated in the piezoelectric crystal by pressure of the mass of the back-plate actuates the detonator.
Patent GB-1450088-A (GB)
Title: Azo pigments of the beta-hydroxynaphthoic acid series
IPC: C09D11/02
Filed: 1973-10-19
Abstract: 1450088 Monoazo pigments BASF AG 19 Oct 1973 [21 Oct 1972] 48763/73 Addition to 1369809 Heading C4P The invention comprises azo pigments of Formula I where A is the residue of diazotized 1-aminoanthraquinone which may be substituted by C1 in the 3- or 4-position, or of diazotized 2,4,5- trichloroaniline, R<SP>1</SP> is -H, -Cl, -CH 3 , CH 3 O-, C 2 H 5 O-, -CN, -SO 2 NH 2  or CONH 2 , R<SP>2</SP> is -H, -Cl, -CH 3 , CH 3 O- or -COOCH 3  and B is H, optionally substituted alkyl or aralkyl or an optionally substituted aromatic radical of 1 to 3 condensed rings which may contain ring heteroatoms. The pigments of Formula I may be prepared by (a) condensing a compound of Formula II where X is Cl or Br with an amine of Formula III or (b) azo coupling. The pigments may be used to mass-colour plastics materials, to colour printing pastes, surface coating compositions, printing inks and paper and in textile printing and give red and blue shades when used to colour polyvinyl chloride. The pigments may be improved by boiling in a solvent or stirring at ambient temperature.
Patent GB-1508529-A (GB)
Title: Flame retardant polypropylene compositions
IPC: C08L77/00
Filed: 1976-11-24
Abstract: 1508529 Flame retardant compositions DART INDUSTRIES Inc 24 Nov 1976 [26 Nov 1975] 49010/76 Heading C3K Flame retardant compositions comprise (1) a propylene polymer resin, (2) sufficient chlorinated polyethylene containing 20-55% chlorine to provide a ratio of (2) : (1) of 20 : 80 to 50 : 50, together with, per 100 parts of (1) and (2), (3) at least 5 parts antimony trioxide, (4) at least 15 parts of chlorinated paraffin containing 18-36 carbon atoms and 40-80% chlorine and (5) at least 20 parts alumina trihydrate. The propylene polymer may be a polypropylene or propylene/ethylene copolymer. The compositions may also contain asbestos, glass fibres, stabilizers and lubricants.
Patent GB-1450782-A (GB)
Title: Process for the manufacture of 9,10-seco-oestrane derivatives
IPC: C07C29/132
Filed: 1973-10-22
Abstract: 1450782 9,10 - Seco - estrane derivatives SCHERING AG 22 Oct 1973 [25 Oct 1972] 49104/73 Heading C2C 9,10-Seco-estrane derivatives of the formula (wherein n is 1 or 2, R 1  is C 1-4  alkyl; R 2 , R 3  and R 4  are each H, alkoxy or acyloxy; X is a free or ketalized carbonyl group or a free, esterified or etherified hydroxymethylene group; Y is an OH group and Z is H or Y and Z together are an oxido group; and the dotted line designations at C 6 -C 7 , C 8 -C 9  and C 14 -C 15  mean that the bonds in these positions are all saturated except when Y and Z together are oxido when they may all also be unsaturated) are prepared by cyclizing seco-steroids of the formula (wherein Q is carbonyl or dialkoxymethylene) in the presence of an acidic catalyst to form 6,9- oxido - 9,10 - seco - #<SP>1,3,5(10),6</SP> <SP>8,14</SP> - estrahexaenes and then if desired hydrogenating these with 3 molar equivalents of hydrogen to form 6,9- oxido - 9,10 - seco - #<SP>1,3,5(10)</SP> - estratrienes or with 4 molar equivalents of hydrogen to form 9,10 - seco - #<SP>1,3,5(10)</SP> - estratrien - 9 - ols. If desired a 17-keto group may be reduced to a 17-hydroxy group prior to the hydrogenation. An etherified or esterified 17-hydroxy group may be hydrolysed during the acidic cyclization, and a free 17-hydroxy group may be acylated in this step. The products of the Formula (I) wherein n is 1 are novel. Oxidation of the products of the formula gives the corresponding 9-oxo compounds. Starting materials of the Formula (II) are prepared as described in Specification 1,450,781.
Patent GB-1085360-A (GB)
Title: Oven for the treatment of metallic articles
IPC: F27B5/05
Filed: 1965-11-19
Abstract: 1,085,360. Vacuum heat treatment furnaces. P. SCHMETZ. Nov. 19, 1965 [Dec. 5, 1964], No. 49189/65. Heading F4B. A vacuum heat treatment furnace comprises a water-cooled jacket 1 with a vacuum connection, a work container 2 with a vacuum connection 4 sealably seated in the jacket, and a cylindrical heating device 8 having heating elements 11 surrounded by refractory lining 12 insulating layer 13 and outer shell 14 supported laterally by rollers 9. Said heating device is movable vertically by a motor 18 and chains 10 and in its lower position seats over a plate 16, plate 15 then closing its upper opening. Cooling of the work container is accelerated by blocking the upper inner surface 17 of the watercooled jacket 1. The upper part of the work container carries baffles 7 and insulation 6.
Patent GB-1437385-A (GB)
Title: Winch system for helicopter
IPC: B64D1/22
Filed: 1973-10-23
Abstract: 1437385 Guiding cables on to winch drums UNITED AIRCRAFT CORP 23 Oct 1973 [6 Nov 1972] 49330/73 Heading B8B A cable winch comprises a drum 24, a guide sheave assembly 28 mounted in a frame (20), Fig. 1 (not shown), attached to cargo deck (22) of a helicopter (10) and a swivel fairlead 30. A double helix leadscrew 52 traverses the guide sheave assembly 28, trunnion and carriage assembly 76 allowing the guide sheave assembly 28 to swing as it traverses. Reaction means, separate from the leadscrew 52, for at least partially absorbing the horizontal and vertical loading on the guide sheave assembly 28, include reaction bar 78 and levelwind arms 112, 114 and a reaction strut 120. As shown the drum 24 has a large cable 34 and a small cable 38 and is driven by a reversible hydraulic motor 40 through a gear-box 42 which also drives an intermediate shaft 46 in turn driving clutch elements 62, 64, through chains 54, 58, at different speeds. Clutch elements 68, 70 are mounted on sliding rod 66 whose position is controlled by hydraulic actuator 72 itself actuated through a valve 92 operated by auto-control unit 94 to change the leadscrew speed 52 at the junction of the cables 34, 38 on the drum 24.
Patent GB-1419465-A (GB)
Title: Separation of a mixture of vinyl acetate and methanol
IPC: C07C67/00
Filed: 1973-10-23
Abstract: 1419465 Separation of vinyl acetate and methanol HOECHST AG 23 Oct 1973 [25 Oct 1972 21 Aug 1973] 49333/73 Heading C2C A process for separating vinyl acetate and methanol in a mixture which consists essentially of vinyl acetate and methanol and which may also contain minor amounts of methyl acetate, acetaldehyde and water comprises an extractive distillation of the mixture in a first stage using as extraction agent an aromatic hydrocarbon or derivative thereof, e.g. a benzene or naphthalene hydrocarbon or derivative thereof, which is liquid at room temperature and has a boiling point at atmospheric pressure of at least 100 C., into an overhead product consisting of methanol, methyl acetate, acetaldehyde, and a small amount of extraction agent and vinyl acetate, and a bottom product of extraction agent and vinyl acetate, and separating the bottom product of the first stage by distillation in a second stage into vinyl acetate as overhead product and the extraction agent as bottom product. In order to prevent vinyl acetate from polymerizing in the extraction column or vinyl acetate distillation column a polymerization inhibitor such as phenothiazine may be added to the extraction agent.
Patent GB-1525966-A (GB)
Title: Dust separator
IPC: B03C3/86
Filed: 1975-12-02
Abstract: 1525966 Electrostatic precipitator SVENSKA FLAKTFABRIKEN AB 2 Dec 1975 [4 Dec 1974] 49495/75 Heading B2J Electrodes 9 in an electrostatic precipitator are mounted between opposite sides of a frame, which may for example comprise U-shaped beams 1, 2 by retaining the ends of the electrodes 9 in respective holders 3, 4 which in turn are adjustably secured by means of a screw arrangement, e.g. bolts 5, to the frame 1, 2 so that the holders can move towards and away from the frame to provide tensioning of the electrodes. As shown in Fig. 1, emission electrodes 9 may bridge the holders 3, 4 in pairs, with the other end of each electrode being fastened in a central holder 10. The ends of the electrodes 9 extend into and engage detents of respective tubular fittings 11, 12, 13 welded to the holders 3, 4, 10 with the aid of cylindrical clamp-pieces 20, 21, 24 inserted within the tubular -fittings and retained therein by bending over tongues 22, 23, 25, 26. Alternatively, Figs. 4 and 6, the electrodes 9 have dovetail ends 39 whose wedge-angle corresponds with that of the interior of respective U-shaped shoes 32, Fig. 6, which are welded onto the holders 3, 4, 10. By providing the shoes with an arch 37 in the web 35 joining the legs 36 identical shoes can be used for each holder. Preferably the holders 3, 4 have limited elasticity and the bolt connections between them and the frame is provided between every second electrode anchorage, Fig. 9 (not shown).
Patent GB-1475763-A (GB)
Title: Vehicle washing apparatus
IPC: B60S3/06
Filed: 1974-11-18
Abstract: 1475763 Vehicle washing apparatus MBB FAHRZEUGWASCHANLAGEN GmbH 18 Nov 1974 [30 Nov 1973] 49814/74 Heading B7J A vehicle washing apparatus comprises a movable gantry supporting a roof brush 4 and side brushes 10, the gantry consisting of two uprights 1 having guides 5 in which the roof brush runs, a transverse beam 2 having a guide 11 in which the side brushes run, and longitudinal beams 3 interconnecting the transverse beam and uprights. In its uppermost position, the roof brush extends above the gantry without interference from the transverse beam. The roof brush is mounted on a hollow shaft 25 rotatably mounted on a central shaft 21 and rotated by a motor 20. The shaft 21 carries pinions 8, 81 driven by a motor 22 and engaging. racks 6 in the upright guides 5 for raising and lowering the roof brush. Guide rollers 9, 9<SP>1</SP> are also provided. Similarly, the side brushes are rotated by motors 16 and moved towards and away from each other by motor-driven pinions 14 engaging a rack 13 in the transverse guide 11. The side brushes are carried by pivoted two-armed levers 18, 18<SP>1</SP> at each end.