baber/WOPTO huggingface dataset:
Patent GB-683968-A (GB)
Title: Improved apparatus and process for crystallizing and separating in the form of a slurry slightly soluble substances from relatively large quantities of liquid
IPC: B01D21/00
Filed: 1950-03-30
Abstract: <PICT:0683968/III/1> <PICT:0683968/III/2> Slightly soluble substances are crystallized and separated from relatively large volumes of liquid, e.g. the potassium salt of dipicrylamine is crystallized and separated from sea water, using an apparatus comprising a crystallizing chamber 1 having an open top which lies within or passes through an opening in the bottom of a sedimentation tank 2. Tank 2 has a horizontal cross-sectional area several times that of chamber 1 and is provided with rotating rake arms carrying scrapers 9 arranged to sweep crystals deposited on the bottom of tank 2 into an annular space 10 surrounding chamber 1 and communicating with the lower part thereof through a circumferential opening 11.  The liquid is introduced into chamber 1 through pipes 12 and distributing-device 3 which comprises (see Fig. 2) a circular pipe 13 and radial pipes 14, having perforations on the lower surfaces, through which the liquid flows into chamber 1.  Crystallization is effected by cooling or by adding a precipating agent.  The precipating agent may be added at the bottom of chamber 1, or it may be added at different heights therein so as to cause precipitation in several stages.  The rate of supply of liquid through distributing-device 3 is adjusted so that the smaller crystals circulate successively through chamber 1, tank 2, and annular space 10.  The grown crystals are withdrawn as a slurry from the bottom of chamber 1 through outlet 4.  Clear liquid flows over the upper edge of tank 2 into circular overflow 5, and is discharged through outlet 6. The laminary character of upward flow in chamber 1 is maintained by concentric, cylindrical baffles 19.  The upper edge of the crystallizing chamber may rise above the bottom of the sedimentation tank.  In the crystallization of potassium dipicrylaminate from sea water 50 to 150 kg. of mother crystal is kept in suspension, in a crystallization chamber 1.5 to 5 metres high, per cubic metre of liquid, using a rate of flow of 20 to 30 metres per hour.  The crystallization chamber may have a diameter of 5 metres, while the diameter of the sedimentation tank is 15 metres. Specification 605,694 is referred to.
Patent GB-1253516-A (GB)
Title: Fluid containers
Inventor: GILLHAM DEREK PETER
IPC: A61M1/00
Filed: 1968-02-19
Abstract: 1,253,516. Container for blood. BRITISH OXYGEN CO. Ltd. 14 Feb., 1969 [19 Feb., 1968], No. 8055/68. Heading A5R. A fluid container, into which blood for example may be drawn, comprises a fluid inlet conduit 4 with a nozzle 5 inclined to the inner wall of a vessel 1 so as to direct the fluid against the wall and produce a swirling motion of the fluid. The container may be used to form part of a blood collecting arrangement extending from the site of a surgical operation to a vacuum pump, the direction of the blood against the wall of the vessel reducing the frothing of the blood, a feature commonly associated with these types of blood containers. The container may include a removable cover 3 and a generally U-shaped handle (6), Fig. 3 (not shown) pivoted about a collar (7) on the vessel. A resilient pin (9) carrying a member (8) may bridge the handle, so that in an upright position the member is firmly pressed into a groove (12) to receive the cover.
Patent GB-582215-A (GB)
Title: Flow meter
IPC: G01F1/24
Filed: 1944-05-01
Abstract: 582,215. Flow meters. FISCHER & PORTER CO. May 1, 1944, No. 8153. Convention date, June 10, 1943. [Class 69 (i)] A flow meter for fluids comprises a metal &c. case 10 with an outlet 11 and a lower head 12 with an inlet 14, a tapered glass &c. metering tube 15 being held in the case between a lower gasket 16 and an upper spider 17 and corrugated expander spring 18; a non- magnetic tube 22 of brass &c. is. secured within the case 10 between an upper gasket 25 and a lower cup 23 of neoprene &c., and a non-magnetic float 26 is slidable along the tube 22 and preferably comprises cylindrical inner and outer walls 27, 28, end covers 29, 30 and glass &c. bushings 31, 32, the float having an annular head 33 and containing diametrically-opposed bar magnets 35, while spring 34 limits movement of the float. A non-magnetic follower tube 36 of brass &c. is guided in the tube 22 by pairs of wheels 37 and is connected by a metal ribbon 41 to a sheave 43 constrained' by a counterbalance spring 48, the follower tube having between the magnets 35 a magnet 39 of reversed polarity, whereby movement of the float 26 is conveyed through the sheave to an electrical transmitter as in Specifications 469,026 and 469,071, [both in Group XXXV], connected to a remote synchronized receiving and integrating unit.
Patent GB-409262-A (GB)
Title: Improvements in or relating to axle-bearings for rail vehicles
IPC: B60B37/04
Filed: 1933-10-03
Abstract: 409,262. Axle bearings. TIMKEN ROLLER BEARING CO., Denber Avenue, Canton, Ohio, U.S.A. Oct. 3, 1933, No. 8154/34. Convention date, Feb. 18. Divided on 409,204. Drawings to Specification. [Class 12 (i).] The subject-matter in this Specification is the same as that in Specification 409,204, but the claims are directed to the feature that the outermost parts of the outermost bearing cups are located beyond the side frame and project into ungapped parts of the axle housing, so that the openings in the latter may be made smaller, with consequent strengthening.
Patent GB-1455614-A (GB)
Title: Flexible supply lead
IPC: A61C19/00
Filed: 1974-02-22
Abstract: 1455614 Dental handpieces SIEMENS AG 22 Feb 1974 [5 March 1973] 8250/74 Heading A5R [Also in Division F2] A dental handpiece has a supply lead (see Division F2), comprising a covering of substantially circular cross-section enclosing elongate sleeve members 4, 5, 6, 7 each of which serves as a conduit for one of spray water supply, spray air supply, cooling water supply or electricity to the handpiece. A flexible conduit 10 conveys a water air mixture to the head of the handpiece.
Patent GB-564037-A (GB)
Title: Improvements in tobacco ash or like holders
IPC: A24F19/00
Filed: 1943-05-26
Abstract: 564,037. Smokers' ash receptacles. McHALE, J. H. May 26, 1943, No. 8357. [Class 130] An ash receptacle 1 is provided with a tray or cover 4 pivoted at 5 upon the receptacle and having a bottom 7 pivoted on the tray, with means for holding the bottom 7 against the underside of the tray when the letter is in position covering the receptacle 1 and for enabling the bottom to pivot downwards as in Fig. 2 when the tray is turned upwards about its pivot 5. As shown, a spring arm 10 has a curled end adapted to engage behind the hinge-socket 8 on the bottom 7 with a snap action when the bottom moves into closed position. Side lugs 2 on the receptacle have a sliding wedge engagement between ears on a supporting plate on a car or aeroplane.
Patent GB-126812-A (GB)
Title: Improvements in Reversing Mechanisms for Internal Combustion Engines.
Inventor: DAWSON SAMUEL HORACE WRIGHT
IPC: F01L13/00
Filed: 1918-05-21
Abstract: 126,812. Dawson, S. H. W., and Sharpley, G. R. May 21, 1918. Reversing.-An eccentric 28 lor actuating the fuel-injection pump 1 is driven by a lug 13 on a clutch element 11 on the crank-shaft 10 engaging in a recess 12 in the eccentric. When reversing, the clutch element 11 is withdrawn and the eccentric lags behind until a projection 14 on it is engaged by the clutch lug 13, which causes a pump stroke to be made in the opposite phase, producing a premature explosion and reversal, whereupon the eccentric again lags until the clutch reengages in the original position. The clutch element 11, in addition to the lug 13, has a recess 15 normally engaged by a lug 14 on the eccentric. The element is slid on the shaft 10, .for reversal, by moans of a hand-lever 22, link 24, and a bellcrank 19 connected to the end of a shifting-lever 17. The bell-crank 19 also lifts a rod 20 carrying a leaf spring 21, which normally bears on the inertia tappet 5 of the pump; the tappet then ceases to actuate the pump until the engine slows down, when the pump is actuated in the opposite phase. The rod 20 is in two parts, connected by a pin 30 and slot 31, so that the upper part carrying the spring 21 can be lifted against a spring 29 independently of the handle 22, by means of a screw-and-nut device 33. In order to inject more fuel at the time of reversal, the eccentric 28 encircles a fixed eccentric 27 on the shaft 10, the eccentricities of the two being in the same direction at the time of reversal. To prevent jarring of the lever 22, a square lug on the link 24 engages a recess in the lever and is lifted by a cam 26 into a slot 25 when the lever is moved to the right in Fig. 3. In a multi-cylinder engine, one or more of the fuel pumps may be actuated in the manner described, the remainder being actuated by an inertia tappet driven from an ordinary eccentric, the tappet being controlled by a spring such as 21 which is lifted during reversal.
Patent GB-1164588-A (GB)
Title: Improvements in or relating to the Production of Beta-(5-Nitro-2-Fury) Acrolein
Inventor: GILLER SOLOMON ARONOVICH
IPC: C07D307/71
Filed: 1968-02-22
Abstract: 1,164,588. Beta - (5 - nitro - 2 - furyl) acrolein. ORDENA TRUDOVOGO KRASNOGO ZNAMENI INSTITUT ORGANICHESKOGO SINTEZA AN LATVIISKOI SSR. 22 Feb., 1968 [25 Feb., 1967], No. 8591/68. Heading C2C. A process for the preparation of beta-(5- nitro-2-furyl) acrolein which comprises condensing 5-nitrofurfural with acetaldehyde in an organic solvent in the presence of morpholine acetate at a pressure of not less than 5 atmospheres and at a temperature of 80-90‹ C. and is preferably carried out with intensive stirring characterized by a Reynolds number of 7000- 40,000.
Patent GB-717867-A (GB)
Title: Improvements relating to pre-combustion chambers for diesel engines
IPC: F02B19/14
Filed: 1952-04-04
Abstract: 717,867. Direct-injection engines. DAIMLER-BENZ AKT.-GES. April 4, 1952 [April 5, 1951], No. 8656/52. Class 7(3) To reduce knocking in Diesel engines. one or more cross pieces or pins 14, 15 of circular or angular section extend transversely into the path of a fuel jet issuing from a nozzle 18 so as to impede direct passage of the fuel as it passes from a main chamber 12a into a passage 12b opening into the main combustion space. Fig. 1 shows a pin 15 at right angles to three pins 14. Other arrangements illustrated comprise a pin 15 associated with a single (central) pin 14, two parallel pins in a horizontal plane and five pins arranged in superposition in three horizontal planes. In Fig. 6 the chamber 12a is surrounded by the cylindrical wall of a cavity in the cylinder head and a tubular insertion having a flared end 12c is fitted in the cavity and has holes to receive four pins 14<1>, 14<11> and 15, the latter having notches to accommodate the other pins.
Patent GB-1038312-A (GB)
Title: Improvements relating to fastening devices for bracelets, necklaces and similar articles
Inventor: LENG HERBERT HARLEY
IPC: A44C5/20
Filed: 1962-03-07
Abstract: 1,038,312. Buckle fastenings. B. E. LENG (BIRMINGHAM) Ltd. Feb. 20, 1963 [March 7, 1962], No. 8711/62. Heading E2A. A fastening device for bracelets, necklaces and similar articles comprises two main components 10, 28 formed to interfit with each other when in longitudinally overlapping relation so as to form a link for joining the ends of the bracelet or other said article one of the main components including a body part and a clasp 20 movable relatively to the body part between open and closed positions in the former of which the main components of the fastening device can be released from each other to allow the bracelet or other said article to be taken off and in the latter of which positions the two main components are held together in interfitting relation, the body part being in the form of an arm made from a single strip metal blank including integrally connected portions for forming side flanges 11, a base part 12 connecting them and lugs 14 on which is pivotally mounted a safety catch 24 for retaining the clasp in its closed position. As shown the part of the body part between the lugs 14 is curled to form a tubular catch element 16 which co-operates with the clasp 20 and which also serves as a spacer preventing inward deflection of the lugs 14. The safety catch is connected to the lugs 14 by a pivot pin 27 which also serves to mount a link 32 by which the body part is connected to the. article. The opposite ends of the margins to the lugs 14 are shaped to form circular ears 18 to which the clasp 20 is connected by means of a pivot pin 19. The clasp 20 is formed of strip metal curled to receive the pivot pin 19 at one end and the other end of which is bent to form a hook part 22 which is engageable with the catch element 16. Between the hook part 22 and the remainder of the clasp a rib 23 is formed and in the position in which the safety catch retains the clasp in its fastening position the safety catch overlies the clasp with the rib 24 projecting through a slot in the safety catch. The main component 28 is formed from bar stock of H section and its web is formed with a series of longitudinally spaced openings 30 through any one of which the clasp 20 can be threaded so that the overall length of the fastening device is adjustable as desired. One end of the component 28 is provided with a link 33 for connecting to one end of the article.
Patent GB-604292-A (GB)
Title: Hydraulic speed gear
IPC: F16H39/24
Filed: 1945-04-09
Abstract: 604,292. Hydraulic variable-speed gear. GERHOLD, J. A. April 9, 1945, No. 8714. [Class 69 (ii)] [Also in Group XXVI] In a sliding vane pump-andmotor type gear, the pump is provided with retractable abutments 10 manually displaceable in succession to vary the pump output. In addition, an automatic pressure control of the abutments may be provided. Cams on the pump and motor casings engage projections on the vanes to ensure withdrawal in the vicinity of the abutments. The pump abutments 10 are each connected to a rod 11, spring- biassed normally to retract the abutment, and carrying a toepiece 21<SP>1</SP> ... 28<SP>1</SP> adapted to be engaged in succession by a manually adjustable sleeve 25, axial movement of which pushes the abutments successively into operative position. Inlet and out-let ports 13, 14 between each abutment communicate with suction and discharge spaces 48, 43 through stop valves 44 and thence with the motor through a disc valve d manually adjustable by rack and pinion 53, 50 for forward and reverse drive. In the latter position a projection 55<SP>1</SP> on a member carried by the rack engages slots in the fixed casing e to prevent rotation of the common pump and motor casing c. For forward drive the casing c is held against rotation by spring detents 61 engaging a ratchet-wheel 65 on casing e, until at top speed centrifugal weights 62<SP>1</SP> withdraw the detents and casing c rotates. If load increases, pressure in chamber 43 rises and pushes out pistons 66 to rotate rods 11 and withdraw abutments 10 momentarily to relieve stress. A spring-loaded piston 68 on chamber 48 compensates for changes of volume or pressure therein.
Patent GB-992528-A (GB)
Title: Arrangement of current supply to furnaces for production of aluminium by melt electrolysis
IPC: F27D11/00
Filed: 1963-03-05
Abstract: <PICT:0992528/C6-C7/1> In an electrolytic aluminium furnace having a continuous self-baking anode and a molten aluminium pool cathode on the furnace bottom connection is made to the cathode pool by contact rods which pass through the anode into the molten aluminium, the rods being insulated from the anode and the electrolyte.  As shown, a cathode rode 4 of material resistant to liquid aluminium, such as a boride or carbide of titanium or zirconium, provided with an insulating sleeve 7 of nitride-bonded silicon carbide is located by a distance piece 8 of non-conductive refractory material from a tube 5 of aluminium which is adhered to the baked zone of the anode and is progressively extended at its upper end as its lower end is melted on lowering of the anode.  The space between the tube and the rod may be used to exhaust furnace gas or to supply alumina.  Instead of the insulating sleeve between the tube and rod the space may be packed with granular alumina or the alumina may be mixed with fluorides when the furnace heat effects sintering.  A row of cathode contact rods may be disposed between two rows of iron anode supporting and contacting rods, which may be coated with titanium carbide, to form a quincunx array, or the tubes 5 may themselves be of the carbidecoated iron and serve as anode supporting connections. In either case the anode connections have conical ends or are screwed into the baked part of the anode so that they may be raised as the anode is consumed, and the electrode connections are connected to parallel alternate anode and cathode bus-bars.  Instead of providing a separate tube for each cathode connection several may be disposed within one tube or channel, e.g. as in the embodiment of Fig. 3 (not shown) in which aluminium sheets drawn from rolls are passed downwardly through the anode and located in position to form a rectangular section channel by fixed shaping and reinforcing members supported from above the anode.
Patent GB-901508-A (GB)
Title: Improvements in or relating to neutron detectors
IPC: G01T3/00
Filed: 1959-03-13
Abstract: 901,508. Nuclear reactors. SIEMENSSCHUCKERTWERKE A.G. March 13, 1959 [March 14, 1958], No. 8790/59. Addition to 862,379. Class 39 (4). A neutron detector of the kind described in the parent Specification is used with a nuclear reactor which is provided with additional fissile material, such as a uranium plate, disposed in a region near the detector, preferably in a reflector zone of the reactor. The uranium plate may be disposed in a reflector-free space in the reactor and is preferably movable so that the increase in neutron flux at the detector produced by the plate is adjustable.
Patent GB-1246301-A (GB)
Title: Dynamo electric machines
Inventor: HEMMINGS ROBERT
IPC: H02K1/27
Filed: 1968-02-23
Abstract: 1,246,301. Machines with permanent magnets- JOSEPH LUCAS (INDUSTRIES) Ltd. 12 Feb., 1969 [23 Feb., 1968], No. 8817/68. Heading H2A. A dynamo-electric machine has a casing 31 carrying stator windings 32 and bearings 33, 34 supporting a rotor shaft 11 comprising a pair of bearing portions 12, 13 secured to a separate central portion 14 of non-magnetic materials, e.g. aluminium, carrying a permanent magnet assembly. As shown, the said assembly comprises three pairs of discs 16, 17 and 18, 19 and 20, 21 with interdigitated poles embracing permanent magnets 22, 23, 24, and a pair of steel end-discs 15, 25 formed with fan blades 15a, 25a. Disc 15 abuts a shoulder at one end of portion 14 and a spring clip 26 and resilient washer 30 engage the disc 25.
Patent GB-1457804-A (GB)
Title: Method of inlaying decorative stone
IPC: B44C1/26
Filed: 1974-02-27
Abstract: 1457804 Decorating stone surfaces T F ALLARD 4 Feb 1975 [27 Feb 1974] 8848/74 Heading B6X A method of decorating a stone slab, e.g. marble, granite, slate comprises the steps of  carving a design in the slab 10, producing holes 12 in the carving to form a key for a filler, painting the carving, filling the carving with the filler 13 and finally polishing the face of the slab. The painting of the carving is effected using water colour paints which are fixed with a water colour fixative and the filler is a clear polyester resin.
Patent GB-1076832-A (GB)
Title: Improvements in or relating to knitted fabrics
Inventor: MOLTU KNUT PETTER
IPC: D04B1/18
Filed: 1964-03-03
Abstract: A restricted stretch weft knitted fabric is formed from a crimped yarn and a flat yarn knitted into at least some of the fabric stitches together with the crimped yarn, the flat yarn having a stitch length less than that of the crimped yarn when measured in the fully extended condition.  Nylon may be used for both yarns.
Patent GB-1359560-A (GB)
Title: Preparation of pyrrylsalicylic acid
IPC: C07D207/325
Filed: 1972-02-25
Abstract: 1359560 5-N-Pyrryl salicylic acid MERCK & CO Inc 25 Feb 1972 8903/72 Addition to 1214079 Heading C2C 5-N-Pyrryl salicylic acid is prepared by one of the following reaction schemes Pharmaceutical compositions in conventional forms for oral administration and having antipyretic anti-inflammatory and analgesic activity comprise the above compound or salt thereof and a carrier or diluent.
Patent GB-781209-A (GB)
Title: Readily water-soluble carboxyalkylated polysaccharides and their preparation
IPC: C08B31/12
Filed: 1955-03-28
Abstract: The invention comprises granular dry alkali metal salts of carboxyl alkyl ethers of cellulose, the degree of etherification being not less than 0.3 and the particles having no linear cross-sectional dimension less than 0.004 inch or greater than 0.033 inch.  The particles are more readily water-soluble than those of other sizes. The granular, more soluble, salts are obtained by granulating the dry ether salt and then screening the particles, that portion being retained which passes a 20-mesh sieve but not a 100-mesh sieve (U.S. sizes).  Particles passing a 100-mesh sieve may be kneaded into a dough with water and the dough is then sliced, dried and pulverised and screened.  In examples: (1) chloracetic acid is added to a stirred mixture of wood pulp and linters in aqueous alcoholic caustic soda, whereupon some aqueous phosphoric acid is added; the resulting sodium carboxyalkyl cellulose ether is sliced, dried, granulated and sieved as above; (2) wood pulp is carboxymethylated with chloracetic acid in alcoholic-toluene-aqueous NaOH solution and the resulting slurry is centrifuged and the solid worked up as in (1).  The method may be applied to the corresponding starch derivatives (see Group IV (b)).ALSO:The invention comprises granular dry alkali metal salts of carboxyalkyl ethers of starch having a degree of etherification not less than 0.05, the particles having no linear crosssectional dimension greater than 0.033 inch or less than 0.004 inch.  They are more readily soluble than when the particle sizes are of other values.  The granular more soluble salts are obtained by granulating the dry ether salt and then screening the particles, that portion being collected which passes a 20-mesh sieve but is retained by a 100-mesh sieve (U.S. sizes).  Granular material not retainable by a 100-mesh sieve may be kneaded with water into a dough which is sliced, dried, pulverized and then screened.  In an example, starch is reacted with chloracetic acid in toluene-alcohol, neutralized with flake NaOH, the resulting gel is sliced, dried and pulverized and then sieved as described above. The method may be applied to alkali metal salts of carboxyalkyl ethers of cellulose (see Group IV (a)).