baber/WOPTO huggingface dataset:
Patent GB-1422440-A (GB)
Title: Device for producing a constant-level fluidized bed of pulverulent or granulr products
IPC: B01J8/00
Filed: 1973-11-29
Abstract: 1422440 Fluidised bed apparatus DRYSYS EQUIPMENT (FRANCE) SA 29 Nov 1973 [25 Jan 1973] 55396/73 Heading B2L A constant level fluidised bed 19 is maintained in a tank 11 with product take off means 21 by supplying the product through take-off means 10 from a fluidised bed storage tank 1 and providing a preferably adjustable overflow weir 20 in the tank 11 for retaining excess product to the tank 1. As shown take-off venturis 21 supply electrostatic or other applicators (not shown) from the tank 11 and a take-off venturi 10 supplies powder from the storage tank 7 to a cyclone or other separator in a compartment 13, separated by a part-partition wall 14 from the main compartment of the tank 11. Powder may alternatively be lifted from the tank I to the tank 11 by scoops on an endless belt.
Patent GB-1216930-A (GB)
Title: Piston unit for a piston pump
IPC: F04B49/18
Filed: 1968-11-25
Abstract: 1,216,930. Reciprocating pumps. DOMKRAFTAKTIEBOLAGET NIKE. Nov. 25, 1968 [Nov. 23, 1967], No. 55910/68. Heading F1A. In a pump used to feed a hydraulic cylinder (not shown) and having a piston unit comprising two concentric pistons 6 and 7, a delivery valve 16 in a cap 12 at the inner end of the outer piston 6 is spring-biased to the closed position so that during high-pressure operation only the inner piston 7 is reciprocated. The cap and pistons define a chamber 8, into which fluid is introduced, by way of a suction valve 15 in the cap. From a chamber 1 defined by the cap and pump cylinder 20 which communicates with the hydraulic cylinder. When the pressure in chamber 1 is low the pressure of the fluid entering chamber 8 on the suction stroke is insufficient to operate valve 16, and both pistons perform a working stroke together, at high-pressure the fluid in chamber 8 opens the valve 16 so that on the working stroke fluid is forced into chamber 1 by the inner piston 7 more easily than forcing the piston 6 downward. The pump cylinder is screwed into a valve block 22 in which inlet and outlet valves, 3 and 4 respectively, and inlet and outlet conduits, (27) Fig. 1 (not shown) and 28, 28<SP>1</SP> respectively, are provided to allow fluid-flow to the hydraulic cylinder, and from an external source of fluid. Fluid light seals are provided on both pistons, and the inner piston is connected to a control arm 9.
Patent GB-1454296-A (GB)
Title: Production of liquid crystal devices
IPC: G02F1/1337
Filed: 1973-12-03
Abstract: 1454296 Controlling light DEFENCE SECRETARY OF STATE FOR 2 Dec 1974 [3 Dec 1973] 56010/73 Heading G2F In a liquid crystal cell molecular alignment is produced by providing an obliquely evaporated layer of a dielectric fluoride on the surfaces of each of two substrates bounding the liquid crystal material. As described, the layers are 100-1000Š of magnesium fluoride evaporated at an angle to the normals of the substrate surfaces of greater than 45 degrees. Both substates may be simultaneously coated if the same deposition angle is required. Deposition angles of 45 degrees - 75 degrees produce alignment substantially parallel to the substrate surface, whereas angles of 75 degrees-90 degrees provide alignment at an angle to the surface. A cell may have alignment of different types at the two surfaces. Reference is made particularly to electrooptic "twist" cells comprising nematic material, or nematic material doped with optically active material.
Patent GB-1138899-A (GB)
Title: Combined air separation and puffing process for tobacco stems
IPC: A24B3/18
Filed: 1966-12-14
Abstract: 1,138,899. Puffing tobacco stems. PHILIP MORRIS Inc. 14 Dec., 1966 [23 Dec., 1965], No. 56047/66. Heading A2C. Tobacco stems are puffed by hot air at from 200 to 500‹C., the air either flowing up a column such that the tobacco stems which puff become less dense and are forced upward into collecting means while the steams that do not puff remain in the column of hot air until they either puff or fall into collecting means at the bottom of the column, or the hot air is applied using a fluidized bed technique.
Patent GB-1366978-A (GB)
Title: Electromagnetic clutches
IPC: F16D47/00
Filed: 1972-12-07
Abstract: 1366978 Friction clutch GENERAL MOTORS CORP 7 Dec 1972 [27 Dec 1971] 56495/72 Heading F2C In an electromagnetic friction clutch in which drive is transmitted from a pulley 12 to a shaft 16 when a stationary coil 26 is energized to attract an armature plate 74 formed of three segments, 74a, 74b and 74c (Fig. 2) into contact with a pole member 62 attached to the pulley 12, centrifugal force acts to increase the engagement of the clutch. The armature plate 74 is formed at its outer periphery with a flange 76 adjacent a cylindrical portion 20 of pulley 12, and each segment is attached to shaft 16 by resilient legs 104 of a member 100 fixed to the shaft. These legs 104 serve to move the armature 74 axially away from pole member 62 on deenergization of coil 26 and allow radial movement of the segments so that flange 76 can move into contact with portion 20 of the pulley 12 under the action of centrifugal force. The pole member 62 and plate 74 have circumferentially extending slots 70, 71, 72 and 78 to cause the magnetic flux (whose path is indicated by broken line 112) to form a multiplicity of poles between members 62, 74. The clutch may be used in an accessory device such as an air conditioning compressor in an automobile.
Patent GB-1171158-A (GB)
Title: Improvements in or relating to Air-Cushion Vehicles
Inventor: BEARDSLEY MELVILLE WHITNEL
IPC: B60V1/00
Filed: 1966-12-19
Abstract: 1,171,158. Air cushion vehicles. M. W. BEARDSLEY. 19 Dec., 1966 [3 Feb., 1966], No. 56659/66. Heading B7K. An air cushion vehicle has a cushion plenum chamber enclosed by a flexible skirt having a rear portion higher than the side portions so that cushion air is discharged as a propulsive jet, said skirt having means restraining outward and upward movement of the skirt. A deck 10 carries a power plant 20 comprising a fan 24 and straightener vanes 29 enclosed within a duct 21 formed with a rearwardly directed discharge nozzle 30 and also with an air outlet into a secondary plenum chamber formed by a single-wall looped skirt 36. A plate 101 associates with an attachment 38 for skirt 36 to form a further nozzle 100 for the supply of cushion air to a primary plenum chamber 16 enclosed at the front by a curved portion of flexible skirt 12 and at the sides by flexible skirt portions 15. These are maintained in a desired relationship to deck 10 by reinforcing plates 50 braced by flexible ties 52 which restrain outward movement of the skirt and also by a spring-loaded scissors linkage 60 secured by a plate 64 to the lower edge of the skirt to resist upward movement of the skirt. Excess air from the cushion, which may assist in propulsion of the vehicle, discharges through an aperture 40 beneath looped skirt 36. Nozzle 30 has a flap valve 32 for proportioning air from fan 24 between flows 27a and 27b. In a further embodiment restraint is provided by constructing the lateral skirt portions 15 as flexible tubes inflated to a pressure higher than that of the plenum chambers.
Patent GB-1379744-A (GB)
Title: Vibrators
IPC: B06B1/16
Filed: 1971-12-08
Abstract: 1379744 Vibrators ROBERT BOSCH GmbH 8 Dec 1971 [9 Dec 1970] 56956/71 Heading B1C [Also in Division F2] A vibrator, e.g. for submersion in concrete, has an eccentric mass 29 driven by an electric motor 35 mounted in an extrusion moulded tube 2 closed at one end by an integral end wall 5, and a replaceable cap 18, e.g. of an elastomeric material or hardened steel. The cap is held against release, due to vibration, by one of the bent up ends of a spring washer 24 cooperating with saw teeth 23 or the cap. Precision-machined seals 8, 12 are provided for a roller bearing 9 and a ball bearing 13 respectively, which 'bearings support the eccentric mass. A cover 47 for closing the open end of the tube includes a bore 49 for receiving a sintered bearing bush 50 (or a needle or roller bearing) for the trunnion 61 of the rotor 36 of the motor which is a high frequency 3-phase motor. The other end of rotor has a recess 60 which receives a projection 31 of the eccentric mass. The stator 37 which is laminated is located in the tube by spacing sleeves 34, 46 and has cement applied to its outer surface prior to insertion in the tube. When the vibrator has been assembled the cover 47 is welded to the tube, and foam material is injected into the interior of the cover.
Patent GB-1334066-A (GB)
Title: Electric upsetting machine
IPC: B21J9/08
Filed: 1970-12-07
Abstract: 1334066 Upsetting machines LANGENSTEIN & SCHEMANN AG 7 Dec 1970 [5 Dec 1969] 57957/70 Heading B3H  An electric upsetting machine comprises an anvil electrode 15 and at least two pairs of clamping electrodes 7, 8 operating side-by-side for holding at least two workpieces 11, 12, Fig. 3, in parallel and a transformer 37, 38 for each pair of clamping electrodes. The clamping electrodes each have a jaw 9, 10, but a common jaw may be provided for the upper pair and the lower pair of clamping electrodes. The clamping electrodes 7, 8 are mounted on fluid-operated slides 1, 2. A pair of dies (13), 14, Fig. 2a (not shown), are mounted on the anvil electrode for die upsetting but a plate can be used to cover the dies for free upsetting. The anvil is mounted on a slide 20 normally locked by nuts 25 on a spindle 24. A cylinder piston unit 22 drives a block 26 with ejectors (27), (28), Fig. 2a (not shown), for the dies 13, 14. The upsetting device comprises a pair of piston-cylinder units in a casing 29, Fig. 1b, and a bar 31 on each piston 30. A spindle 33 extends through an extension 32 on the casing 29 for each piston and carries a nut 34 which engages the bar 31 to limit the rearward travel. Each piston carries a threaded spindle 35 whose position is adjustable by a nut 36. The current loop for each workpiece is from its transformer to one of a pair of contact plates 18, contact pieces 17, conductor 41, to the electrodes 7, 8 of one pair, along the workpiece to a common contact plate 16 and to the transformer. The upsetting is performed simultaneously on the workpieces which may be laterally transferred after a first upsetting for further upsetting in the next die set. The anvil slide is kept locked for die upsetting and released for free upsetting. The pressure in the upsetting cylinders is used to operate an hydraulic pressure switch for the heating current.
Patent GB-1394460-A (GB)
Title: Non-woven articles containing a heatresistant binder
IPC: D04H1/4218
Filed: 1972-12-15
Abstract: 1394460 Non-woven fabrics RHONE-POULENC SA 15 Dec 1972 [17 Dec 1971] 58047/ 72 Headings D1R and D2B A non-woven fabric comprises a web of either non-fusible fibres or fibres having a softening point or melting point above 180C bonded together by a polyamide-imide in an amount from 3 to 150% by wt. based on the dry wt. of the fibres. The polyamide-imide may comprise a plurality of units of the formula: in which Q represents a divalent radical containing at least one benzene ring and R represents a trivalent aromatic radical. The fibres may be inorganic e.g. glass, carbon, boron, asbestos, metal e.g. copper, steel, or fibres of aluminium oxide and of zirconium oxide, or organic polymeric e.g. polyesters, polyacrylonitrile, polytetrafluoroethylene, copolymers of tetrafluoroethylene and hexafluoropropylene, polyamides, or polyamide-imides. The fabric may be made by forming a dry web of fibres, contacting the web with organic solution of the polyamide-imide, and drying the treated web. The web may be formed by a dry technique e.g. by superposing layers of carded parallel fibres with binder in between the layers, or by blowing the fibres against a screen using an air jet, or by spin bonding. Such dry-formed webs may be mechanically treated e.g. needled punched. Alternatively, the web may be formed by a papermaking method. Binders e.g. polyvinyl alcohol, may be incorporated in the aqueous dispersion of fibres before web-formation. The non-woven fabric may be used in the manufacture of filters, cores for insulating linings, arid catalyst supports.
Patent GB-1273322-A (GB)
Title: Sheet-like article of paper or other fibrous material
IPC: B01J13/02
Filed: 1970-12-08
Abstract: 1,273,322. Coated sheet material. NATIONAL CASH REGISTER CO. 8 Dec., 1970 [29 Dec., 1969], No. 58207/70. Heading B2E. [Also in Divisions B5 and B8] A sheet-like article of paper or other fibrous material comprises at least one fibrous substrate having a plurality of minute polymeric capsules each containing an evaporable liquid or solid core material and a substantially continuous polymeric layer, permeable to the core material only in its vapour state, on at least one major surface of the substrate. In the simple form of the invention a layer of microcapsules is deposited on one surface of the fibrous substrate whilst a layer of polymeric material is applied on the opposite surface. In an embodiment the microcapsules may be dispersed within the fibrous layer and in a further embodiment the micro-capsules may be disposed in a layer between two layers of fibrous material, the polymeric layer being applied to both the external surfaces of the fibrous material. In a further embodiment the micro-capsules are disposed on to the fibrous layer which is coated on both its external surfaces with layers of polymeric material. The fibrous web may be woven or non- woven and may consist of cellulosic fibres, e.g. cotton, or wool cellulose, or of glass, polyamide, cellulose acetate, reconstituted cellulose, polyethylene terephthalate, linen (flax) and polyacrylonitrile, as well as combinations of these. The core material of the micro-capsules may be insect repellents, pet repellents, rodent repellents, bactericides, perfumes, odorants, reodorants or deodorants. The walls of the capsules may be of cellulosic polymers such as ethyl cellulose, nitrocellulose, or carboxymethyl cellulose, or of shellac, rosin, vinyl polymers, of which a number are specified, or of an aminoplast. The vapour-permeable material may be of polypropylene, polyethylene, ethylene/propylene copolymer, polyvinyl chloride, polyvinylidene chloride, vinyl chloride/ vinylidene chloride copolymers, mixtures of polyvinyl chloride and polyvinylidene chloride or polyethylene terephthalate.
Patent GB-1452114-A (GB)
Title: Lubricant composition
IPC: C10M/
Filed: 1973-12-17
Abstract: 1452114 Lubricants SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 Dec 1973 58279/73 Addition to 1137819 Heading C5F A lubricant, suitable for use as a cylinder oil, comprises a hydrocarbon lubricating oil together with (a) an oil-soluble basic salt of a naphthenic acid and a Group II metal having an atomic number from 12 to 56 and (b) an oil-soluble basic salt of an aromatic carboxylic acid and a Group II metal having an atomic number from 12 to 56; the amounts of components (a) and (b) being such that the T.B.N.-E (Total Base Numer-Electromeric) of the lubricant is greater than 12 mg. KOH/gm. The additive (a) can be derived from naphthenic acids of average molecular weight 150-750 and the additive can be derived from hydrocarbon or hydroxy substituted acids; the additives (a) and (b) can each be used in amounts of 0À5-20 wt. per cent. In examples a concentrate containing 35 wt. per cent of 1000% basic calcium naphthenate in spindle oil and a concentrate containing 35 wt. per cent of 200% basic calcium C 14 -C 18  alkyl salicylates in spindle oil are added to a blend of distillate and residual lubricating oils.
Patent GB-1438317-A (GB)
Title: Rotary-anode x-ray tubes
IPC: H01J35/10
Filed: 1973-12-19
Abstract: 1438317 Magnetic bearings SIEMENS AG 19 Dec 1973 [21 Dec 1972] 58964/73 Heading F2A [Also in Divisions G3 H2 and H1] A rotary anode X-ray tube is supported mechanically by only bearing 24, additional anode support being provided by magnetic bearing means in a radial direction, the mechanical bearing serving also to conduct current by way of the anode. The magnetic bearing means may additionally give axial support. The bearing in Fig. 1 includes a stack of aligned annular e.m. coils 9 to 15 with a second stack of coils 36 to 42 producing opposed fields, rotor 27 having two hollow cylindrical parts and magnetically conductive annular yoke members 28 to 35. Shaft 25 is axially supported by the mechanical end bearing 24 which with the tensioned disc 7<SP>1</SP> electrically contacts connecting socket 7. Cylinder 71 carries further yoke members 43 to 50 while the drive part 51 on rotor 71 is surrounded by stator winding 52. Electrically connected cylinder 72 protects members 43 to 50 from high anode potentials. Eccentricity is detected by capacitance measurements between probe 60 and cylinder 72 using device 55 which also controls the current to the coils so that rotor 27 is subjected to forces which counteract the eccentricity only for long enough to prevent the rotor hunting about its central position. Shaft 25 length is such that the axial supports is at 103, the intersection between the shaft axis and a perpendicular from target surface 102. To facilitate assembly, the inner cylinder of the rotary part, with its annular members, may be split. Fig. 3 (not shown) includes drive part (51<SP>1</SP>) between anode plate and coil stacks and is preferable for high loads. External stack (80) should be at anode potential in view of the narrower gap between members (81), (82) and 83 to 85) the latter penetrating the envelope. Fig. 4 (not shown) includes mid-way drive part (51<SP>11</SP>). Gap (87<SP>1</SP>) corresponds to gap (87) of Fig. 3. Members (83<SP>1</SP>-85<SP>1</SP>) and (97, 98) are retained by lining (100) rather than penetrating the envelope as in Fig. 3. Ball bearing (104) provides the mechanical support against the flat or concave shaft end. Reference is made to permanent magnets and to e.m. coils fixed to the rotary shaft and employing slip-rings or induction coils.
Patent GB-1213669-A (GB)
Title: Closure for surgical drainage pouch
Inventor: NOLAN JOHN L
IPC: A61F5/445
Filed: 1967-12-29
Abstract: 1,213,669. Releasable fastenings. HOLLISTER Inc. 29 Dec., 1967 [5 April, 1967], No. 59186/67. Heading E2B. '[Also in Division A5] A surgical drainage bag 10 is closed at the lower end by a clamp comprising a wedge member 40, a complementary trough member 38 and means for holding the wedge and trough members in nested relationship for clamping the bag between them the wedge and trough members being non-linear or aromatic in plan. The wedge member has at one end a hook 50, which pivots on a pin 44 at one end of the trough, to form a hinge. The clamp is secured closed by engagement of a shoulder 52b, on a latch finger 52 at the other end of the wedge member, with an abutment 56 on the trough member. The bag 10 comprises flexible transparent plastics panels seamed along the sides and top and open at the bottom 20c. A lower opening (21) Figure 2 not shown near the top of one panel is reinforced by a backing member (24) which has projecting apertured ears (29, 30) for connection with posts (33a, 33b) at opposite ends of an elastic body belt (12).
Patent GB-1303750-A (GB)
IPC: C07K16/18
Filed: 1970-12-15
Abstract: 1303750 Anti-lymphocytic serum INSTITUT MERIEUX 15 Dec 1970 [17 Dec 1969] 59578/70 Heading A5B A anti-lymphocytic serum is recovered from an animal immunized by means of antigers from lymphocytic cells of simian origin.
Patent GB-1270370-A (GB)
Title: Improvements in or relating to ignition systems for internal combustion engines
IPC: F02P3/08
Filed: 1970-12-16
Abstract: 1,270,370. Ignition systems. ROBERT BOSCH G.m.b.H. Dec. 16, 1970 [Dec. 19, 1969], No. 59620/70. Heading F1B. An ignition system for an internal-combustion engine comprises an ignition capacitor 16 chargeable by a charging impulse derived from an alternating current voltage induced in a charging winding 13 by a magnet system 11, a rectifier 14 being connected in series with this charging winding. The capacitor is dischargeable through the primary winding 18 of an ignition transformer 19 by means of the cathode to anode path of an electronic discharge switch 15 having a control electrode S, whilst the secondary winding 21 of the ignition transformer is connected with at least one sparking plug 22. There is connected to that part of the charging winding that is nearer the rectifier, a diode 23 which is reverse biased by that half cycle of the alternating current voltage from which the charging impulse is derived. The end of the charging winding opposite to that which is connected to the rectifier is connected to a control resistor 24 in series with the diode, whilst the common point between the control resistor and the charging winding is connected to the control electrode S of the electronic discharge switch and the common point between the diode and the control resistor is connected to the cathode of the electronic discharge switch.
Patent GB-1188448-A (GB)
Title: A Rest for Spectacles
Inventor: HOWARD KEITH
IPC: A47G29/08
Filed: 1968-12-17
Abstract: 1,188,448. Smokers' ash trays; match stands. K. HOWARD. 17 Dec., 1968, No. 59841/68. Heading A2M. [Also in Divisions A4 and B6] A rest for spectacles is in the form of a head 1 standing upright on a base 3, the nose supporting the bridge 4 and recesses 5 at the sides of the nose accommodating the lens frames so that the ends of the side arms 2 rest on the supporting surface 1 on which the head stands. The head may be combined with pockets at the back for articles, e.g. pens, pencils, matches, or with an ashtray.
Patent GB-1426713-A (GB)
Title: Plastic bags
IPC: A45C3/04
Filed: 1971-12-28
Abstract: 1426713 Carrier bags M S GRAY 27 March 1973 [28 Dec 1971] 60267/71 Heading A4G A compartmented synthetic plastics bag 10 comprises two sheets 12, 14 joined together along their edges, the sheets 12, 14 having respectively a slot 16 and an aperture 20 and the bag 10 being arranged to be supported on a rod 24 so that the rod 24 may be grasped through the slot 16 and aperture 20 for carrying. The sheets 12, 14 may be integral along a fold line or formed as a flattened tube, the remaining edges being heat sealed together, and further heat seal lines 22 define compartments. Spring steel clips 26 may be provided for securing the bag 10 to the rod 24. The slot 16, may be of generally diamond form, and the aperture 20 generally diamond-shaped or circular. The slot (30), Fig. 6 (not shown), in the sheet 12 may be divided from an adjacent aperture (28) by a strip (32) formed by heat sealing portions of the sheets 12, 14 together for reinforcement, the aperture 20 in the sheet 14 being located within the area of the slot (30).
Patent GB-1330480-A (GB)
Title: Process for the continuous production of steel by spray- refining and plant for carrying out the process
IPC: C21C5/56
Filed: 1970-12-21
Abstract: 1330480 Spray refining and casting steel VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A G 21 Dec 1970 [24 Dec 1969] 60614/70 Heading C7D Steel is continuously produced by spray refining liquid pig iron with a gaseous refining agent during addition of slag forming substances such as lime, fluospar and bauxite and, if desired coolants such as ore, limestone and scrap, pouring the steel and slag into a collecting vessel, the steel then being further treated in an electric furnace and then being continuously cast into bars. The steel may be vacuum treated before casting. The furnaces may be resistance arc furnaces or induction furnaces. Al, Si and/or C may be added to the slag in the collecting vessel, which may be kept fluid by heating and by addition of fluxes.