baber/WOPTO huggingface dataset:
Patent GB-1050706-A (GB)
IPC: B04B15/04
Abstract: 1,050,706. Centrifugal separators. M.S.E. HOLDINGS Ltd. Dec. 31, 1965 [Feb. 2, 1965], No. 4575/65. Heading B2P. Foamed or frothed liquid discharging from the rotor bowl of a centrifuge is de-aerated by causing the liquid as it is discharged from the bowl to pass through a relatively narrow gap and thence to flow over a plain stationary surface. As shown, liquid to be centrifuged, e.g. coolant for machine tools, is fed into a centrifuge bowl 11 via an angularly moveable inlet connection 19 disposed centrally of the lid 18 for the centrifuge casing 10. The clarified liquid on leaving the bowl flows through an annular gap, 5/16" to 3/8" wide, provided between the lid 18 and the upper edge of a collar 17 and thence over a flat annular plate 21 secured by brackets 20 to the underside of the lid 18, the plate 21 bearing on an annular seal 22 when the lid is closed. The collar 17 forms part of a latch plate assembly 16 which serves to locate on the upper part of the bowl an annular member 14 which carries blades or vanes 15 which depend into the bowl and serve to divide the separated sludge cake into a number of segments to facilitate disposal of the cake. A rubber liner 13 is disposed in the bowl and is removed and replaced when it is required to empty accumulated sludge.
Patent GB-1053342-A (GB)
IPC: A61F13/15
Abstract: 1,053,342. Laminates. R. JOOSS, R. SAUR, and E. SAUR. Aug. 16, 1963 [Aug. 21, 1962], No. 32440/63. Heading B5N. [Also in Division D1] A laminate, e.g. a napkin, comprises a reinforced wadding 4 or 4a provided on one side with a layer of moisture-repellent material 2 or 2a and which is reinforced by lines of stitching 3 provided perpendicularly to the direction of the fibres composing the wadding, the distance between adjacent lines of stitching being less than the average length of the fibres of the wadding. The moisture-repellent material may consist of fibres arranged parallel to the fibres of the wadding and the distance between each line of stitching is less than the average length of the fibres. By " moisture-repellent material " is meant a material, e.g. polypropylene, which absorbs substantially less than 1% of its own weight of moisture. In one embodiment, Fig. 1, the web 4a is joined to the layer 2a by the stitching 3. In a second embodiment, Fig. 2, the stitched web 4 has the moisture-repellent layer 2 laminated thereto by gluing. The other side of the wadding may be provided with a layer of textile fabric. The edges of the wadding may be reinforced by having the lines of stitching closer together or by using stronger threads for the stitching. To give the wadding elasticity, elastic threads may be used for the statiching. In a further embodiment (not shown), several layers of quilted material are superimposed.
Patent GB-1095370-A (GB)
IPC: F16C3/10
Abstract: 1,095,370. Force fits. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI A.S. Oct. 7, 1965 [Aug. 4, 1965], No. 42646/65. Heading B3V. [Also in Division F2] A crank-shaft includes a journal 24 which is shrink fitted into a web 21, the journal having stepped diameters 25 and 26 which fit with different interferences into a correspondingly stepped bore. The increase in diameter of the bearing journal 27 as compared with that of a conventional journal 6 (indicated in dotted lines), permits the web to be made broader than a conventional web 1, or the cylinder spacing between adjacent crankpins 23 to be reduced. The crankpin 23 can be similarly shrink fitted into a web.
Patent GB-1143588-A (GB)
IPC: C07C/
Abstract: 1,143,588. Amino cresol derivatives. L'OREAL. 7 April, 1966 [6 May, 1965], No. 15711/66. Heading C2C. [Also in Division D1] The invention comprises compounds of the formula in which R<SP>1</SP> represents chlorine and R<SP>2</SP> represents hydrogen, or R<SP>1</SP> represents hydrogen and R<SP>2</SP> represents carbamylmethyl or diethylcarbamylmethyl. 2-Carbamyl methylamino-4- hydroxytoluene is obtained by condensing chloracetamide with 2 -amino - 4-hydroxytoluene - 2 - (Diethylcarbamyl) - methylamino - 4 - hydroxytoluene is obtained by condensing N,N - diethylchloracetamide with 2-amino-4- hydroxytoluene. 2-Amino-4-hydroxy-5-chlorotoluene is obtained by simultaneously reducing the nitro group and chlorinating the 5-position of 2 - nitro - 4 - hydroxytoluene using a mixture of tin and hydrochloric acid. The products are employed in compositions for dyeing keratinic fibres, especially hair (see Division B1).
Patent GB-1143685-A (GB)
IPC: E04G21/18
Abstract: 1,143,685. Builders line holder. J. R. TOOGOOD. 21 Nov., 1967, No. 52900/67. Heading E1S. A builder's line holder has a main body portion 13 with flanges 15 projecting perpendicularly to the plane thereof at each end, and spaced apart by a distance slightly greater than the width of a brick, and slots 16 in one or both ends of the body portion, which is formed to provide, or has attached to it, a bobbin, which as shown is constituted by the recesses 11 and 12 in the flange and body portion respectively. The edges of the flanges which in use contact the brickwork have notches 18. In another embodiment (Fig. 3, not shown), the bobbin consists of two pins 21 projecting perpendicularly from the central region of the body portion, and connected together at their outer ends by a flat bar 23, and there are slots at each end of the body portion. Either flange could be constructed to be adjustable along the body portion to allow for different size bricks.
Patent GB-1143784-A (GB)
IPC: C08B37/02
Abstract: 1,143,784. Depolymerizing dextran. FISONS PHARMACEUTICALS Ltd. 22 Nov., 1966 [9 Dec., 1965], No. 52413/65. Heading C3U. Native or other high M.W. dextran is depolymerized to give a lower M.W. dextran product having a relatively narrow M.W. range by subjecting it to a series of hydrolysis steps which alternate with a series of solvent extraction steps, each of said solvent extraction steps comprising contacting partially hydrolysed dextran from one of the hydrolysis steps with a solvent of the type defined below, forming the dextran/solvent mixture into two phases and recovering dextran in the desired M.W. range from the upper phase, and each of said hydrolysis steps comprising hydrolysing the high M.W. material in the lower phase of a solvent extracttion step. Solvents defined are alcohols, e.g. methanol, propanol or ethanol, or ketones, e.g. acetone, and are all capable of causing an aqueous dextran solution to form two phases, bearing substantially only relatively low M.W. dextrans in the upper phase, and substantially only relatively high M.W. dextrans in the lower phase. Hydrolysis is suitably effected by acid, e.g. hydrochloric, but alkali, ion-exchange resin, enzyme or ultrasonic hydrolysis are also specified. Any dextran, especially that produced by culturing Leuconostoc mesenteroides, may be used. It is preferred to increase the temperature of each successive hydrolysis from, e.g. 40‹ C. through to 120‹ C. The products are of use clinically as blood thickeners.
Patent GB-1144680-A (GB)
Abstract: 1,144,680. Variable capacitors. STRATFORD RETREAT HOUSE. 24 May, 1967 [28 June, 1966], No. 24189/67. HeadingH1M. In a variable capacitor comprising fixed concentric cylinders 25, 26, 27 and movable concentric cylinders 29, 30, 31, but which may also be of the piston type (Fig. 5, not shown), a constant preadjusted torque against rotation of the operating member 35 is provided by a tension nut 40 externally threaded to be screwed into bushing 20 to compress spring 39 surrounding central circular shaft section 38 of member 35. The shaft section has bifurcated legs 43, 44 which fit through semicircular openings 41, 42 in tension nut 40 (see also Fig. 2, not shown) to provide a tool-accommodating notch and to ensure that nut 40, spring 39 and rotating member 35 turn as one. The torque depends on the initial distance between nut 40 and the end of rotating member 35.
Patent GB-1230773-A (GB)
IPC: C07D215/38
Filed: 1967-03-31
Abstract: 1,230,773. Azido trihalomethyl quinolines and benzothiazoles. KODAK Ltd. 28 March, 1968 [31 March, 1967], No. 14955/67. Heading C2C. [Also in Division G2] The invention comprises azide compounds of formulµ wherein X is hydrogen or halogen and R is trihalomethyl. The compounds of Formulµ IIIV are prepared by reacting 6-, 7- or 8-acetamidoquinaldine with bromine to form the corresponding 6-, 7- or 8-acetamido-, 2-tribromomethyl-quinoline with one or two bromine substituents in the 5-, 6-, 7- or 8-positions. The quinoline is diazotized with sodium nitrite and sulphuric acid and the diazonium salt thus produced is reacted with sodium azide to produce the corresponding azide. The compounds of Formula V are produced similarly starting with 6-acetamido-2-methylbenzothiazole.
Patent GB-1232374-A (GB)
IPC: H03H9/09
Filed: 1969-04-14
Abstract: 1,232,374. Mounting piezoelectric resonators. P. R. MALLORY & CO. Inc. 14 April, 1969 [19 April, 1968], No. 19045/69. Heading H1E. A radial-mode peizoelectric disc resonator 12 is gripped between resilient leads 14, 15 at a central nodal point in such a manner that it is free to rotate. The leads extend through the base 13 of a hermetic container from which extend a pair of integral stanchions 25, 26 which are provided with grooves 35, 36 for location of the leads 14, 15. In a modification (Fig. 3, not shown) two resonators are mounted in a single container between a pair of stanchions and on either side of an additional upright conductive member. The latter carries on either side protuberances each contacting a respective resonator at its nodal point and co-operating with a respective resilient lead to support the resonator.
Patent GB-1233620-A (GB)
IPC: F16H63/30
Filed: 1969-03-28
Abstract: 1,233,620. Variable speed control. ARDIEWERK G.m.b.H. 28 March, 1969 [30 March, 1968], No. 16254/69. Heading F2D. A variable-speed gear control comprises an hydraulic pump 13 and motor 9 connected by a control unit 19 having a large flow valve 33, 34 operated by fluid pressure from a small flow solenoid valve 39, 40 controlled by signals from an electrical unit 20. The unit 20 may receive signals from transducers 21 reacting to engine speed and vehicle speed, to manual pushbuttons 22, 23 and switches 44, 45 indicating gear ratio. The motor 9 has two pistons 8, 10 and a stop 12, piston 8 having different effective areas on each side. The hydraulic circuit may include an accumulator 16 and a relief valve 17. Lines 47, 48, 49 may lead to further control units.
Patent GB-1234276-A (GB)
IPC: G03B1/56
Filed: 1968-05-16
Abstract: 1,234,276. Tape threading apparatus. K. VOCKENHUBER, and R. HAUSER. 16 May, 1968 [16 May, 1967], No. 23413/68. Heading G5R. [Also in Divisions G2-G3] In a device extracting the free end of a film or other strip coiled within a cartridge 1 of the type described in Specification 1,233,708, the drive to the reel 4 is disengaged after driving belt 15 has run for a predetermined time so that damage to the strip is avoided should the end fail to emerge from the cartridge. Belt 15 is pressed against wheel 33 by pinch roller 32 on motor 17, thereby driving a wheel 35 bearing eccentric pin 36 through a pinion 34. After one revolution of wheel 35, eccentric 36 trips latch 42 freeing slider 37 for return to its rest position by spring 40. Support 8 is attached to slider 37 by spring 38 so is therefore also returned to the rest or disengaged position by a spring 39.
Patent GB-1238145-A (GB)
IPC: B24D5/04
Filed: 1970-05-29
Abstract: 1,238,145. Abrasive tools. CINCINNATI MILACRON Inc. 29 May, 1970 [3 June, 1969], No. 25959/70. Heading B3D. An abrasive wheel comprises an annular disc 11 formed of abrasive grains in a binder, and a circumferentially tensioned ring 24 in the central aperture of the disc and held in contact with the surface 20 of the aperture. The ring may be of steel, fibreglass or an alloy and may be expanded so as to have a tangential circumferential tension before or when placed within the aperture by a split collar 42 which is expanded by a tapered plug 40 upon tightening of a bolt 56 abutting a plate 52 bearing against the ring 24 and collar 42. The ring is maintained under tension until an adhesive layer 36 is cured, removal of the collar 42 and plug permitting the ring to apply a tangential compressive force to the surface 20 of the disc. Alternatively, the ring may be expanded and the annular disc moulded thereon. The annular disc may be resin bonded or porcelain bonded.
Patent GB-1238516-A (GB)
IPC: C07C17/25
Filed: 1970-02-12
Abstract: 1,238,516. Chloroprene. DENKI KACAKU KOGYO K.K. 12 Feb., 1970 [18 Feb., 1969; 24 Oct., 1969], No. 6747/70. Heading C2C. Chloroprene is prepared by dehydrochlorinating 3,4-dichloro-but-1-ene with gaseous ammonia in the presence of an organic polar solvent. Solvents specified are dimethylsulphoxide, diethylsulphoxide, di - n - propyl sulphoxide, dimethylformamide, dimethylacetamide, formamide, nitrobenzene, acetonitrile, propionitrile, n - butyronitrile and acetophenone. Temperatures of 50‹ to 80‹ C. and atmospheric or superatmospheric pressures are specified. The process may be continuous, with ammonia being separated by evaporation or distillation and returned to the reactor. Ammonium chloride is removed by precipitation, filtration or evaporation, and the solvent is then separated by distillation and returned to the reactor. The chloroprene is preferably maintained out of contact with oxygen, for example in a nitrogen atmosphere. A polymerization inhibitor, for example t-butyl-catechol, phenothiazine or hydroquinone, may be added.
Patent GB-1252077-A (GB)
IPC: F02K3/02
Filed: 1969-03-08
Abstract: 1,252,077. V.T.O.L. aircraft. ROLLS-ROYCE Ltd. 4 March, 1970 [8 March, 1969 (2)], Nos. 12338/69 and 12339/69. Heading B7G. [Also in Division F1] An aircraft jet propulsion power plant comprises a duct 10 containing in flow series a compressor 11, combustion equipment 12, a turbine 13 driving the compressor and a first nozzle N1; the plant also comprises a second duet 21 connected to the first duct to receive pressure fluid therefrom, and terminating in a plurality of second nozzles N2, the second duct being connected to the first duct at a point where pressure is sufficiently high in relation to the individual second nozzles to produce from the second nozzles a jet flow the noise spectrum of which has its peak at an ultrasonic frequency. In the engine shown the second duct 21 divides into two passages 23, 25 and air flowing through the duct 21 may be passed to either passage under control of valves 22, the passage 25 terminating in two parallel rows of downwardly directed nozzles N2 for use when vertical lift is required, and the passage 23 terminating in a rearwardly-directed nozzle 24 for use when forward thrust is required. A cowl 16 is associated with the nozzle N1 being movable between retracted and projected positions for rearward- and downwardly-directed thrust. The nozzles N2 are shown in Figs. 5 and 6 each comprising a combustion chamber 27 and fuel supply 28; a U-sectioned member is provided in each outlet and the outlets so formed are split up by baffles 29 so as to provide the plurality of nozzles N2. In the example described there are 346 nozzles each 0À2 square inch area. Adjustable baffle plates 34 are disposed laterally of the nozzles N2. In the example, with a by-pass pressure ratio of 15 : 1 nozzle entry temperature of 1000‹ K., and jet velocity of 3500 ft./sec., the 346 nozzles each 0À2 square inch area produces a thrust of 20,000 lb. In an aircraft comprising a plurality of such engines, the passages 25 of the engines are interconnected so as to allow for failure of an engine when vertical lift is in operation.
Patent GB-1258291-A (GB)
IPC: B60H1/00
Filed: 1969-01-14
Abstract: 1,258,291. Ventilating vehicles. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 14 Jan., 1969 [23 Jan., 1968], No. 2084/69. Heading F4V.  In a vehicle ventilation system, a device for automatically controlling a pivoted flap 1 as a function of the vehicle's speed in relation to the atmosphere air comprises a cable 10 or hinged rods which connect the flap to a piston or diaphragm 7 in a vacuum cylinder 6, the element 7 being responsive through a pipe 5 to the suction effect of a Venturi tube 4 directed forwardly of the vehicle. The flap is biased to an open position. The device is pre-set manually by a lever 14 connected to the cable 10. Alternatively, the lever 14 controls a valve 15 at the outlet of the tube 4, or the suction pipe 5 is provided with a valve controlled branch line 22. The cable 10 if not connected to the lever 14 is anchored to a fixed point or attached directly to a sliding rod 8 of the element 7. The device may also control a rheostate and/or switch in the electrical circuit of a fan 19.
Patent GB-1288388-A (GB)
IPC: H01H27/06
Filed: 1969-02-18
Abstract: 1288388 Indicating devices JOSEPH LUCAS (INDUSTRIES) Ltd 30 Jan 1970 [18 Feb 1969 8 July 1969] 8613/69 and 34387/69 Heading B7H [Also in Division H1] An electrical switch (see Division H1) comprising a body 11, a rotatable cover 13 containing a slot 14, a spring contact 18 and a contact on a printed circuit board 16 mounted in body 11 is mounted on the front of the lock barrel of an ignition switch for a motor vehicle such that when a key is inserted through slot 14 into the barrel, a circuit is completed between lead 23 and earth, through printed circuit board 16, contact 18, the key, the barrel and the casing of the ignition switch. The switch is intended to be used in a warning circuit including a buzzer and a switch on the driver's door so that if the driver's door is opened with the key left in the ignition switch, the buzzer sounds. The door-operated switch can be the existing courtesy light switch operated by the driver's door.
Patent GB-1297532-A (GB)
IPC: C07B/
Filed: 1970-03-26
Abstract: 1297532 Dimerization process HALCON INTERNATIONAL Inc 26 March 1970 [27 March 1969] 14780/70 Heading C2C Dimeric compounds (R-R) are obtained by reacting halogen compounds of the formula R-X; X being a halogen atom and R being an organic residue; with reducing agents which are compounds of titanium, gold, thallium, tin, lead, phosphorus, arsenic, antimony, bismuth or tellurium in the liquid phase.
Patent GB-1302365-A (GB)
IPC: B02C17/14
Filed: 1969-01-30
Abstract: 1302365 Ball &c mills; agitating mixing vessels R D R ANDREWS 20 Jan 1970 [30 Jan 1969 29 March 1969] 5533/69 and 16576/69 Headings B1C and B2A A vibratory mill comprises carrier means, i.e. chambers 12, 13, Fig. 1, for the material to be ground and a drive mechanism which vibrates the carrier means at a fixed amplitude and frequency. As described, the chambers 12, 13 are each mounted on a crosshead slide member 14, 15 which is freely movable linearly along the axis of bearings 16, 17 integral with a casing 5. The chambers are reciprocated by opposed eccentrics 8, 9, connecting rods 18, 19, and the slide members 14, 15. The mechanism is driven by a motor 7, and lubricated by oil splash lubrication, or alternatively by pressure lubrication. Flywheels 22, 23, Fig. 3, are integral with the eccentrics 8, 9. The machine may use three balanced chambers at 120‹ above the shaft. Alternatively an arrangement of chambers connected in series by flexible couplings may be employed, Fig. 4 (not shown). Separate motors may be provided for starting and running. A diminishing or outer different amplitude may be adopted as between one pair of a series and another.
Patent GB-1312688-A (GB)
Title: Silicon nitride artefacts
Inventor: DAVIDGE R W
IPC: C04B35/584
Filed: 1970-07-01
Abstract: 1312688 Oxidation of silicon nitride refractories UNITED KINGDOM ATOMIC ENERGY AUTHORITY 25 June 1971 [1 July 1970] 32011/70 Headings C1A and C1J Controlled oxidation of the surface of internal pores of artefacts containing porous silicon nitride to silicon dioxide, e.g. cristobalite, is carried out to increase the artefact's strength. In an example, an artefact containing silicon nitride of density 2À5 Î 10<SP>3</SP> kg. m.<SP>-3</SP> is heated in air at 1000‹ C. whilst higher temperatures may be employed for less dense silicon nitride. Other oxidizing agents besides air may be used. Artefacts of silicon carbide bonded with silicon nitride may be treated by the process of the invention, and also silicon nitride reinforced with fibres of tungsten or graphite which may be SiC coated.
Patent GB-1314671-A (GB)
Title: Carrier or location means for containers
IPC: B65B17/02
Filed: 1969-02-12
Abstract: 1314671 Can supports A WEIR and G E MAY 12 May 1970 [12 Feb 1969] 7531/69 Headings B8C and B8P Cans 6 are prevented from moving on a flat support 1 by raised regions thereof which engage the inner faces of the rims of the cans. The raised regions may be hinged flaps 4 or preformed mouldings or pressings. Three or more flaps may be provided for each can. The cans may be of metal, glass, wood, plastics, cardboard, paper or waxed paper and may be rigid or flexible. The flat support 1 may be of cardboard, metal, wood or plastics material and may be rigid. The support 1 may be located in a box or tray where it may form a loose bottom. Loaded supports may be stacked and shrunkwrapped. The flaps may be pressed-up by pressure air or by pins 10 moved through apertures in a work-plate 11 supporting the support 1. The pins 10 are secured to a plate 12 which is moved vertically upon pillars 13 by a pneumatically operated piston 14.
Patent GB-1318783-A (GB)
Title: Gas recovery method
IPC: B67D1/04
Filed: 1970-04-29
Abstract: 1318783 Liquid dispensing apparatus J W LEES & CO (BREWERS) Ltd 23 April 1971 [29 April 1970] 20511/70 Heading A4T In a method and apparatus therefor by which gas used in the dispensing of liquids, e.g. beer, from a container or barrel can be recovered for further use, a gas pressure bottle 10 via pressure gauge 13 and pipe 12 can force beer from barrel 11 via a pump or beer engine 15 to tap 16, and when barrel 11 is empty of beer it is connected as at 11a via line 23 and gas dryer and filter 29 to a gas reservoir 18 entering a compressor 22 which withdraws the gas from barrel 11a into reservoir 18 until gauge 21a indicates a pressure in 11a of say 2 p.s.i. when a cut-out switch 21 stops the compressor. The barrel 11a is then returned to the brewery for refilling with beer. When pressure bottle 10 is exhausted, beer is dispensed by pressure from reservoir 18 via valve 28, filter 19 and solenoid valve purity detector 26. Reservoir 18 may be further pressurized from pressure bottle 10a and be provided with drain 27, pressure gauge 25 and a cut-out switch stopping the compressor if the pressure in reservoir 18 rises above say 120 p.s.i. The gas recovery unit within dotted lines 30 may form a unit on a trolley.