baber/WOPTO huggingface dataset:
Patent GB-1385356-A (GB)
Title: Working up waste water
IPC: B01D11/04
Filed: 1972-03-17
Abstract: 1385356 Treating waste water STAMICARBON NV 17 March 1972 [20 March 1971] 12648/72 Heading ClC [Also in Division C2] A process for treating waste water comprising one or more mono- and di-carboxylic acids, salts thereof, alcohols and esters, comprises adjusting the pH to 4 or less (e.g. with H 2 SO 4 ) whereby an aqueous layer and an organic layer are formed, extracting at least the aqueous layer of the acidified waste water with an organic solvent which forms an azeotrope with water and/or has a higher boiling point than water, separating the extract from the extracted water, forming a precipitate from the extract by evaporating residual water and distilling off the solvent and filtering the precipitate. The resultant filtrate may be used as a fuel oil, or fractionally distilled and the residue oxidized (e.g. with HNO 3 ). Residual solvent may be evaporated from the extracted water phase and then salt (e.g. sodium sulphate) is precipitated from the phase. The solvent may be dichloroethane, tetrachloromethane, tetrachloroethylene, benzene, xylene, butanone, pentanone-3, or 4-methyl pentanone- 2. The process may be applied to the treatment of waste water obtained in the oxidation of cyclohexane to cyclohexanone and cyclohexanol, from which treatment the following compounds may be obtained:-sodium sulphate, adipic #-hydroxycaproic, glutaric, butyric, caproic and valeric acids.
Patent GB-592387-A (GB)
Title: Improvements in or relating to shaving brushes
IPC: A46B11/02
Filed: 1946-05-15
Abstract: 592,387. Reservoir brushes. HILLARY, H. B. May 15, 1946, No. 12663/45. [Class 19] A shaving brush of the kind comprising a hollow handle 2, having a conical mouth 1 leading to the bristles is characterised in that a plunger 6, for forcing shaving paste through the mouth, has an axial projection 7 thereon, which enters the mouth to prevent it from being clogged.
Patent GB-1027716-A (GB)
Title: A process for electro-deposition of a coating
Inventor: WALLACE JOHN FREDERICK
IPC: C25D13/22
Filed: 1964-03-25
Abstract: A coating is electrophoretically or cataphoretically deposited on an article immersed in the coating material, e.g. an aqueous dispersion of pigmented epoxy ester or ammonia stabilized alkyd resin, by applying an electric potential between the article and an electrode in contact with the coating material to cause polarization of the surfaces of the article, and then applying a higher potential to effect the required deposition.  The potential may be increased by decreasing the resistance or impedance of the circuit; e.g. applying an electric potential to the article through a bus-bar system having at least two sections whereof the last section is electrically connected to the other section(s) by one or more current limiting devices such as resistances or inductances, the potential being connected to the last section; or moving the article towards the electrode, the resistance of the coating material initially reducing current surge.  Alternatively, a further higher potential source may be used after the initial polarizing potential.  The article may be conveyed conventionally through a tank containing the coating material and serving as the electrode.
Patent GB-1075736-A (GB)
Title: Improvements relating to plates for filter presses, and to filter presses including such plates
IPC: B01D25/176
Filed: 1966-03-23
Abstract: 1,075,736. Filter presses. POLYSIUS S.A.R.L. March 23, 1966 [March 26, 1965], No. 12769/66. Heading B1D. [Also in Division E2] The edge portion 8 of a section of filter cloth is retained in a peripheral slot 1 in the face of a filter-press plate by a fillet 2, of frame-like shape and deformable material. Fillet 2 may be rubber or rigid material with a rubber coating and projects from slot 1 so that, with the filter-press closed and peripheral parts 7 of the plates abutting, faces 6 of adjacent fillets are compressed together and seal spaces 10 between plates. Slots I and fillets 2 may have semi-cylindrical recesses 3, 4 which, during assembly, receive pins 5, inserted into the cylindrical enclosures formed by the recesses from the four comers of the plate (Figs. 2, 3, not shown). The inner ends of pins 5 are chamfered (18), and the outer ends have a knurled head (15) and a short threaded portion (14) whereby they are retained in the plate. The cloth may be retained between pin 5 and fillet 2, as shown, or may have a beaded edge retained in the base of slot 1 (Fig. 4, not shown).
Patent GB-1166245-A (GB)
Title: Shock Absorbing Apparatus.
Inventor: STEVENS GEOFFREY WILLIAM HEDGE
IPC: F16F7/14
Filed: 1966-03-23
Abstract: 1,166,245. Shock absorbing devices. NATIONAL RESEARCH DEVELOPMENT CORP. 27 April, 1967 [23 March, 1966], No. 12858/66. Heading F2E. [Also in Division D1] A shock absorbing device comprises a fabric material having two opposed plies or face layers 14, 15 which are joined to each other by interconnecting pile members 16. One face layer 14 is secured as by an adhesive at 17 to a store 11 and the other face layer 15 is secured as by an adhesive at 18 to a datum frame 12 such that, on the onset of a shock load which would result in relative movement between the load and the frame, the shock load is resisted by tearing or ripping of the interconnecting pile members 16. In the construction shown which is disclosed as for use in dropping by parachute a store from an aircraft the pile members 16 are cut at 19 prior to use. A cutting device may be provided to initiate tearing. The fabric material may be an uncut velvet type pile fabric or may be made from nylon, polyester-or involve highly drawable polymers such as polyolefines. In a further embodiment (Figs. 5, 6, not shown) a tuck is supported in an inverted U-section frame, the frame having a pair of landing skids each comprising a honeycomb structure.
Patent GB-960940-A (GB)
Title: Colour reproducing cathode ray tubes
IPC: H01J29/32
Filed: 1962-04-04
Abstract: 960,940. Colour television tubes. RAULAND CORPORATION. April 4, 1962 [April 4, 1961], No. 12893/62. Heading H1D. In a shadow-mask colour reproducing cathode-ray tube the mask apertures are larger than the elemental phosphor areas and the elemental phosphor areas are separated by areas which are light-absorbing. By suitable selection of the relative mask and screen potentials the electron spots 46g, 46b and 46r on the screen are made larger than the phosphor areas 43g, 44b and 45r. The intermediate areas 47 are coated with black manganese dioxide. The black area may be produced first, and then using a photographic method, light exposed areas are removed where colour phosphors are subsequently applied. Alternatively the phosphor areas are produced first, and a block pigment slurry which is subsequently applied adheres only to exposed and hardened dichromated photo-sensitive colloid areas between the phosphor areas. The tube face-plate and safety-plate are preferably of clear glass. In modifications the elemental phosphor areas in each group of areas may be of different size. Preferably the blue areas are smaller than the green areas and both smaller than the red areas. The tube may be of the single or three gun variety and the mask apertures and phosphor areas other than circular.
Patent GB-560100-A (GB)
Title: Improvements in or relating to the manufacture of n-substituted amides
IPC: C07D201/08
Filed: 1942-09-14
Abstract: Compounds containing an N-substituted amide group are prepared by bringing a vaporised mixture of water, a nitrile group-containing compound and an amino-hydrogen-containing amine into contact, for a time insufficient for substantial polymer formation, with a dehydration-type catalyst at an elevated temperature sufficient to maintain the reactants in the vapour phase but below that at which substantial cracking occurs.  An aminonitrile may be used in place of the nitrile and amine to produce lactams.  Open chain compounds are preferred, but aromatic, cyloaliphatic and heterocyclic amines and nitriles may be used.  Catalysts include alumina, thoria, ceria, zirconia, chromium sesquioxide, blue tungsten oxide, titanium oxide, beryllium oxide, uranous oxide, vanadium oxide, silica, boron oxide, metal sulphates, phosphates, and silicates, phosphoric, silicotungstic, phosphomolybdic and borophosphoric acid, which may be used on carriers.  In examples epsilon-caprolactam is produced from epsilon-aminocapronitrile, a cyclic 8 - membered lactam from 7 - aminoheptanonitrile, an 11-membered cyclic lactam from 10-aminocaprinitrile, and N-n-butyl-propionamide from N-butylamine and propionitrile.  Dinitriles and diamides may be used to produce diamides and cyanoamides.  A list of nitriles including butyl - (beta - cyanoethyl) - sulphide dinitriles, aminonitriles, and amines which may be used is given.  Hydrogen sulphide and hydrogen selenide may replace a part of the water.
Patent GB-788234-A (GB)
Title: Improvements in or relating to alternating current motors
Inventor: WILLIAMS FREDERIC CALLAND
IPC: H02K17/30
Filed: 1955-05-04
Abstract: 788,234. Induction motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 4, 1956 [May 4, 1955], No. 12916/55. Class 35. In an induction motor whose stator flux moves obliquely with respect to the rotor, the speed is controlled by altering the angle of flux-travel by purely electrical means. The stator comprises a series of axially laminated bars J, K, L, M, N, spaced round the rotor, and having transverse slots for the reception of coils 1, 2, 3, 4, 5, 6 in each bar. These coils are fed with polyphase currents whose relative phaseangles are changed to alter the angle # of the flux travel with respect to the rotor travel. In the high-speed connection, Fig. 1, the coils are energized in plain three-phase sequence. In the low-speed condition the coils of row L remain the same, but those of row J are retarded by one phase and those of row N are advanced by one phase, the intermediate rows K, M being provided with double coils to give intermediate phased energization. This has the effect of decreasing the angle 6 and so reducing the speed. By supplying the phase-shifting coils from a phase-shifter, intermediate speeds are obtained, and a system is described using a pair of oppositely ganged phase-shifters producing shifts of Œ 75 degrees. In practical winding layouts which are described, the winding slots are at 45 degrees and coils may pass through the slots of several cores in succession. Specification 760,250 is referred to.
Patent GB-195544-A (GB)
Title: Improvements in or relating to flyer frames
IPC: D01H1/00
Filed: 1922-05-08
Abstract: 195,544. Hemingway, P. M. May 8, 1922. Guards; splash guards.-A guard for the swing gearing of flyer spinning-machines, of the kind wherein the. intermeshing teeth of the driving wheel and the swing-wheel run towards the front of the machine, is adjustably mounted on the gearing slide so as to reciprocate therewith and is formed so as to prevent objects from falling be. tween the downwardly running teeth and to prevent the splashing of oil from the forwardly running teeth. A hood 1 and saddle 2 are adjustably connected together and mounted on a bracket 4 secured to the gearing slide 3.
Patent GB-361810-A (GB)
Title: Process of and apparatus for softening water
IPC: C02F5/02
Filed: 1931-05-02
Abstract: 361,810. Preventing and removing incrustation. CHEMISCHE FABRIK BUDENHEIM AKT.-GES., Mainz, Germany. May 2, 1931, No. 13018. Convention date, July 29, 1930. [Class 123 (i).] Water is softened by treatment first with alkaline boiler water or boiler sludge water and then with tri-sodium phosphate or other alkaline-reacting alkali-phosphate. Water to be treated from a vessel n passes with boiler sludge water from a pipe k down a tube b in a cylindrical vessel a. Sludge settles on the base c and the water after passing through a filter e is treated with trisodium phosphate solution prepared in a vessel l and supplied through a regulating device m and a distributer p. The water passes finally through a filter f to an outlet pipe g. Phosphate solution may be passed directly to the pipe g through a pipe h. It is stated that, if excess alkaline phosphate is used, the treated water will convert scale present in a boiler into a powdery sludge, which can be pumped away.
Patent GB-266949-A (GB)
Title: An electro-static sound-box for talking machines
IPC: H04R19/06
Filed: 1926-05-21
Abstract: 266,949. Groenebaum, W. May 21, 1926. Condenser teleplones.-An electrostatic sound recorder and reproducer has the electrode connected with the stylus made as a rigid plate mounted in hinge-like fashion to move relatively to the stationary electrode or electrodes, and to avoid resonance it may be made from a light metal alloy containing magnesium such as the alloy known under the registered Trade Mark electron, or of vulcanized fibre faced with a thin coating of metal. The device is made more sensitive by maintaining a charge on the condenser during use. Fig. 1 shows a phonographic device comprising a casing 1 enclosing a fixed electrode 2 and a mica dielectric 3, retained in position by an insulating ring 8 and cover 13, and a movable electrode 4 carrying the stylus 11 and flexibly hinged by a steel strip 9 secured by the ring 8. Screws 5, 6 in metallic connection with the respective electrodes provide terminals. Fig. 4 shows the device adapted for a disc record and provided with two fixed electrodes 2, 2<a> and two dielectrics 3, 3<a> arranged on opposite sides of the movable electrode 4. Fig. 5 shows a working circuit in which the condenser circuit has a battery 21 or is connected occasionally across electric light mains to maintain a charge on the condenser, and is connected across a transformer 20 with the circuit containing the microphone or telephone and, if desired, a valve amplifier.
Patent GB-1044182-A (GB)
Title: Electrical devices
IPC: H01R4/70
Filed: 1963-04-02
Abstract: 1,044,182. Insulating terminals. TEXAS INSTRUMENTS Inc. April 2, 1963 [April 9, 1962], No. 13082/63. Heading H2E. . Connections to an electrical device, such as a thermally responsive switch 10, are partially enclosed by a cap 60 or tube and the space around the connections is filled with a coldsetting resin 96. The switch terminals, to which leads 90, 92 are welded, comprise a rod 34 and a flange 38 in which the rod 34 is mounted by means of a glass seal 36, and the cap, which is moulded of thermo-setting resin, fits on to the flange 38. A groove 99 facilitates tying the switch in place, e.g. in a motor winding. The mould may alternatively be formed by a tubular sleeve of heat-shrinkable thermoplastic shrunk into position around both the connections and the switch, Fig. 12 (not shown), or by a tubular sleeve built up from layers of heat shrinkable thermo-setting resin, Fig. 16 (not shown).
Patent GB-568809-A (GB)
Title: Improvement in resilient fasteners
IPC: F16B37/12
Filed: 1943-08-12
Abstract: 568,809. Wire. SIMMONS, J. W. Aug. 12, 1943, No. 13084. [Class 83 (ii)] [Also in Group XXV] Figs. 16, 17 and 18 show sections of wire that are employed in the construction of resilient fasteners of the speed-nut type.
Patent GB-183614-A (GB)
Title: Improvements in dressers for emery and like wheels
IPC: B24B53/07
Filed: 1921-05-09
Abstract: 183,614. White & Poppe, Ltd., and Thompson, J. S. May 9, 1921. Trueing rotating tools.-A hard grinding wheel B is dressed by a rotatably-mounted metal member A, such as a steel disc of a profile which is the exact counterpart of the grinding wheel. The disc A is fed against the wheel B whilst being slowly rotated by a handle A<3>. A lateral feed may be given if desired. The wheel B, if mounted in its own machine, is disconnected so as to run free. The disc A is split at A<5> for taking up wear.
Patent GB-626461-A (GB)
Title: An insulated container for a baby's bottle
IPC: B65D81/38
Filed: 1946-05-01
Abstract: 626,461. Heat-retaining vessels. LOCKWOOD, L. A. May 1, 1946, No. 13213. [Class 64(ii)] An insulated container for a baby's bottle consists of an outer cardboard tube 14 having a metal base closure 10 and containing a smaller inner cardboard tube 20 also having a metal base closure 21, and a metal rim 15 attached to the tops of these tubes and extending across the dead air space 26 between them. A cardboard ring 25 supports the bottom of the inner tube. The container thus formed as closed by a cap 29 made from the same materials and having a dead air space 37 formed by an inner ring 35 and disc 36, both of cardboard, and a metal top 30. Inner and outer surfaces are covered with metal foil 39. A modification (not shown) has a rubber cap, instead of, that described above, having an aperture for the protrusion of the bottle teat. A rubber support for the base for positioning the container in an inclined position is also described.
Patent GB-799808-A (GB)
Title: Rendering fibrous materials water-repellent
IPC: D21H19/32
Filed: 1956-05-01
Abstract: A composition for rendering paper and textiles water repellent (see Group VIII) comprises a liquid carrier and a linear polysiloxane having the formula: <FORM:0799808/IV (a)/1> wherein R is a monovalent hydrocarbon radical, x is an integer from 5 to 1000, y is an integer from 2 to 500 and z is 0 or 1. The copolymers may contain up to 20 per cent by weight of HSiO 3/2 and such copolymers must be end-blocked.  In making the copolymers the molar ratio of dimethyldichlorosilane to dichlorosilane may vary from 3 to 1 to 50 to 1, and the preferred method consists in hydrolysing an etherdimethyldichlorosilane mixture with water until evolution of HCl has lowered the temperature of the reaction mixture to 0 DEG  C., when dichlorosilane and, if necessary, trimethylchlorosilane are added and the hydrolysis is completed; equilibration is effected during the hydrolysis by means of sulphuric acid, after which the copolymer is washed, stripped of ether, blown with nitrogen at 130 DEG  C. or above, and filtered.  In examples, copolymers are made (1) in the above manner; (2) by equilibrating the cyclic tetramer <FORM:0799808/IV (a)/2> with hexamethyldisiloxane in the presence of H2SO4; (3) by equilibrating (H2SiO)5 [(CH3)2 SiO]4 and [(CH3)2SiO]2 in the presence of H2SO4; (4) to (8) by hydrolysing various mixtures of specified silanes at ice temperature.  The liquid carrier may be water or a solvent such as naphtha, toluene or benzene.  Catalysts such as soaps of zirconium, lead, zinc, cobalt and iron may be added.
Patent GB-528366-A (GB)
Title: Improvements in machines for preparing pneumatic tyres for re-rubbering
IPC: B29B17/02
Filed: 1939-05-05
Abstract: 528,366. Trimming pneumatic tyres. COLLMANN, N. T. J. May 5, 1939, No. 13445. [Class 31 (i)] Rubber is removed in narrow strips from the surface of a tyre by a cutter 21, the tyre being supported at the cutting position by two profiled rollers 20 carried by a support 9. The tyre is subsequently operated on by roughing cutters 34, 35. The tyre is fed to the cutter by a driven roller 11 carried by an adjustable spring-pressed lever 12, 14 and co-operating with rollers 10 on the support 9. The cutter 21 is mounted in a holder 23 adjustable by a screw 25 in a head 26 which is rotatable in a support 28. The rotary roughing tools 34, 35 are carried by arms 31, 32 and are movable by hand to an operative position. They are mounted on a power-driven shaft 36 which is reciprocated longitudinally by a worm 48 thereon driving an eccentric 50 mounted in a casing 37 carrying the shaft; the eccentric is connected by a link 52 to a support 46 carried by the arm 31. A cleaning brush 54 may be mounted on the shaft 36.
Patent GB-1303673-A (GB)
IPC: A61C13/10
Filed: 1970-03-20
Abstract: 1303673 Moulding teeth H RAUTER 20 March 1970 [28 March 1969] 13514/70 Heading B5A [Also in Division A5] A process for manufacturing an artificial tooth having an anchorage recess, comprises inserting a plug made from a mixture of carbonatecontaining material and a bonding agent, together with the tooth mass into a tooth mould, manufacturing the tooth, and subjecting the plug to the action of an acid to dissolve it. The plug material may be selected from calcite, chalk, calcspar, marble, magnesite, dolomite, witherite, strontianite, or barium carbonate, cadmium carbonate, calcium carbonate, lithium carbonate, magnesium carbonate, strontium carbonate, and zinc carbonate, and the bonding agent is tragacanth, dextrine or starch.
Patent GB-468307-A (GB)
Title: Improvements relating to fuel injection pumps for compression ignition oil engines
IPC: F02M59/46
Filed: 1936-05-13
Abstract: 468,307. F u e l - injection pumps. GARDNER & SONS, Ltd., L., and GARDNER, E. E. May 13, 1936, No. 13519. [Class 102 (i)] In a fuel-injection pump the byepass valve h, the opening of which is controlled by a cam i, relieves the space between the pump delivery valve e and another non-return valve A, which has a groove arranged between the valve and its seat to relieve pressure in the delivery pipe g and prevent dribble at the injection nozzle. The valve A may be in the form of a ball valve.
Patent GB-577666-A (GB)
Title: Improvements relating to the preparation of sulphuric esters
IPC: C07C39/215
Filed: 1944-07-14
Abstract: Salts of sulphuric esters of hex strol, stilb strol, or dien strol are obtained by the action on these compounds of sulphamic acid at temperatures below 150 DEG  C. in the presence of a tertiary amine as a dispersing agent, followed if desired by crystallisation from potassium or sodium hydroxide.  The preferred dispersing agents are pyridine and dimethylaniline.  In examples: (1) a pyridine suspension of sulphamic acid and stilb strol is heated on a steam bath to form ammonium stilb strol sulphate which when crystallised from 2N-potassium hydroxide forms the dihydrate of potassium stilb strol sulphate; (2) dien strol is esterified as in example (1), and crystallised as before to form the dihydrate of potassium dien strol sulphate; (3) hex strol is esterified as in example (1), and crystallised to form potassium hex strol sulphate dihydrate; (4) a mixture of stilb strol sulphamic acid and dimethylaniline is heated to 97 DEG  C., and the product treated with acetone and crystallised as before.
Patent GB-1375622-A (GB)
IPC: B66D5/16
Filed: 1972-03-23
Abstract: 1375622 Winding gear; elevation catch gear POMAGALSKI SA 23 March 1972 [26 March 1971] 13674/72 Headings B8B and B8L An apparatus for raising and lowering a scaffold or like platform and adapted to be secured to the platform, includes a support cable 10, and a safety cable 34 depending from a fixed structure up which the platform is movable, a haulage pulley system 12, 14 and a safety catch system 36, 38 mounted on a frame 20 attachable to the platform, the safety system arresting the platform in the event of the support cable going slack. The cable 10 passes over the powered hauling pulley 12 and is pressed into contact therewith by a compressing wheel 14 mounted on a lever 16 pivotal at 30, the lever 16 also mounting a roller 18 which engages the cable 10 passing on to the pulley 12 whereby the wheel 14 is forced against the pulley 12 provided there is tension in the cable 10 above the pulley 12. A compression spring 24 biases the lever 16 anticlockwise against the effect of the tensioned cable 10. On the reverse side of the frame 20 is mounted a pair of gripping jaws 36, 38 between which the safety cable 34 extends, the jaw 36 being forced towards the jaw 38 by cam ends of a pair of parallel swing hubs 42, 42<SP>1</SP> which pivotally support the jaw 38 which is U-shaped in horizontal section. In the event of the cable 10 going slack, a pin 50 mounting the pulley 18 and extending through an arcuate slot 48 in the frame 20, engages the base of the jaw 38 and under the influence of the spring 24 raises the jaw 38 causing the hubs 42, 42<SP>1</SP> to lock the jaws 36, 38 against the safety cable 34. An arm 54 secured to the jaw 38 causes operation of the safety brake if the platform cants. Several of these apparatus may be used on a single platform.