baber/WOPTO huggingface dataset:
Patent GB-1022690-A (GB)
Title: Improvements in fuel cells for the generation of electrical energy
IPC: H01M4/86
Filed: 1962-11-28
Abstract: A fuel cell electrode is made by coating the face of a porous inert electrode material on the side facing the electrolyte with the hydrides of Ti, Zr, or Hf as activators.  The hydride or a mixture thereof may be pressed into a porous electrode of Fe, Co, Ni, Mo, W, or carbon and sintered below the temperature of hydride decomposition in vacuo or inert gas, or at a higher temperature and then cooled in hydrogen. Alternatively, the metal may be deposited from a solution of its salt by electrolytic precipitation; and then converted to the hydride. In examples, titanium hydride of average particle size 15m is mixed with nickel carbonyl powder (5m ) and ammonium bicarbonate, the mixture being pressed into electrode form at high pressure and then sintered in hydrogen for 30 mins. at 680  DEG C.  Alternatively titanium powder may be used which is sintered at 800  DEG C. in hydrogen and cooled slowly to 600  DEG C. to form the hydride.  The active hydride may comprise 2-40% of the electrode.  In further examples of starting materials Ti powder of size 30m  is mixed with iron powder of 20m  or molybdenum powder of 25m .  The electrodes may be used with electrolytes containing alkali metal hydroxides, with or without added alcohol.  The electrode may also be in the form of mesh container packed with the activated material.
Patent GB-1357410-A (GB)
Title: Casting of castable materials
IPC: B22D18/04
Filed: 1971-09-28
Abstract: 1357410 Casting apparatus GRAVICAST PATENTVERWERTUNGS GmbH 28 Sept 1971 [29 Sept 1970] 45137/71 Heading B3F In a casting apparatus comprising an upwardly extending nozzle 6 and a mould 8, a slidable plate is located in the bottom wall of the mould for shutting off the supply of melt to the mould when the latter has been filled. The sliding plate may be made of metal and is provided with non-metallic refractory material at that surface which faces the casting nozzle and co-operates therewith when the plate is in its closing position. The plate may be provided with a hole 23 which is in alignment with the nozzle 6 during the filling of the mould and it may be water-cooled. In the embodiment shown in Fig. 1, the mould is filled under the influence of the ferrostatic pressure of the melt in a container 1, the rate of introduction into the mould be controlled by a stopper 5. When the mould has been filled, the sliding plate (not shown in Fig. 1) is moved to its closing position, locked in said position, and the mould removed from the remainder of the apparatus. In another embodiment, Fig. 3, a continuous line of moulds is moved past the nozzle 6, the movement of the sliding plates 14 being effected by a piston and cylinder unit 25. The moulds may be made of sand, the sliding plates being incorporated therein during the making of the mould.
Patent GB-1504189-A (GB)
Title: Sheet separator
IPC: B65H3/02
Filed: 1975-10-31
Abstract: 1504189 Feeding sheets INTERNATIONAL BUSINESS MACHINES CORP 31 Oct 1975 [31 Dec 1974] 45270/75 Heading B8B Sheets are separated from the top of a pile 14 by a friction separator 15 which pushes one or more sheets forwardly so as to pass between a second separator 7 and a member 7<SP>1</SP> to prevent double feed. The members 15, 7, 7<SP>1</SP> all move in elliptical paths, and when the flat surfaces 17, 16 of the members 7, 7<SP>1</SP> come into contact with a sheet or sheets they are moving in opposite directions, whereby the top sheet is fed forwards, while any other sheets are returned to the hopper 12. The direction of such movement of the members 7, 7<SP>1</SP> may be inclined to the feed path so as to also move the sheets towards a side register member.
Patent GB-1032830-A (GB)
Title: Method of preparing insulated fabric
Inventor: VOELKER WALTER DANIEL
IPC: D06N3/14
Filed: 1962-11-30
Abstract: A method of preparing a fabric structure comprises dissolving a gas under high pressure in a viscous composition having components capable of undergoing chemical reactions for increase of molecular weight, pumping the mixture of gas and viscous composition to a linear distribution zone extending across the width of an advancing sheet of textile fabric, the gas undergoing a release to substantially atmospheric pressure throughout the linear distribution zone thereby depositing on the advancing sheet of textile fabric a froth containing bubbles of expanding gas, advancing the sheet of textile fabric from the distribution zone through a thickness controlling zone in which heat is applied to bring about curing of the components of the viscous composition and to transform the froth into stable plastic securely bonded to the fabric.  The gas dissolved in the viscous composition may be at a pressure greater than 50 lbs/sq. in.  The gas may be dissolved in the viscous composition to such an extent that the mixture has a density lower than the desired density of the foam. The foam may be deposited between two layers of textile fabric e.g. a denim or a nylon fabric.  The resin may comprise a mixture including isocyanate e.g. tolylene diisocyanate, and hydroxyl groups e.g. polypropylene ether glycol, whereby the plastic foam comprises polyurethane groups; an epoxide resin prepared by the reaction of diepoxy butane and polypropylene glycol, or a polyadipamide resin i.e. nylon.  The gas may be a fluorinated hydrocarbon e.g. difluorodichloromethane, mixed with carbon dioxide.
Patent GB-1133250-A (GB)
Title: Improvements in the manufacture of structural members
Inventor: DICKINSON WALTER
IPC: B28B1/08
Filed: 1966-10-13
Abstract: 1,133,250. Moulding hollow structural members. W. DICKINSON, and W. J. M. HAINES. 31 Aug., 1967 [13 Oct., 1966], No. 45798/66. Addition to 1,090,841. Heading B5A. [Also in Division E1] In a method and apparatus for moulding a hollow structural member, e.g. of concrete, according to the parent Specification, in which a core or cores is or are withdrawn from the mould when the moulding material has partially set and the top of the member is supported by a non-structural strip of sheet material located on top of each core and becomes part of the moulded member, the strip is supported during the setting of the material, by stressed metal wires located longitudinally above the or each core. The cores may be grooved along their tops to receive the wire, and one or more electromagnets may be located above the wires and intermediate their ends to prevent their sagging.
Patent GB-1162941-A (GB)
Title: Automatic Hematocrit Meter
IPC: G01N15/12
Filed: 1966-10-13
Abstract: 1,162,941. Measuring hematocrit index of blood electrically. COULTER ELECTRONICS Ltd. Oct. 13, 1966 [Oct. 20, 1965], No.45896/66. Heading G1N. Apparatus for automatically measuring the ratio of the total volume of red cells of a given sample of whole blood to the total volume of that sample comprises a Coulter type of cell counting and sizing apparatus 10, having a first output channel 38 which delivers cell counting information to an integrator 23 and a second output channel 34 which delivers cell counting and cell sizing information to a mean cell volume computer 22, and an analog computer 75 for multiplying the cell count by the mean cell volume thereby to determine the hematocrit index. As shown in Fig. 1, a metering device 20, such as described in Specification 865, 069, delivers a known volume of a sample comprising blood diluted with an electrolyte to a Coulter scanner 12, such as described in Specification 907, 028. The output of integrator 23 is corrected in accordance with known statistics for coincidence (two cells being detected together) before being applied across terminals 71, 72 of a potentiometer 58. The wiper of the potentiometer is driven by a motor 49 forming part of a servoamplifier and its position is dependent on the mean cell volume whereby the voltage of the wiper tap 60 is proportional to the hematocrit index. This voltage is passed to a second servo-amplifier wherein the angular position of a scale 83 relative to an index mark 84 indicates the hematocrit index. A common reference voltage 63 is used for both servo-amplifiers. The integrator 23 may be arranged to de-energize the detecting means when the integrator has become saturated.
Patent GB-1590974-A (GB)
Title: 1-ethyl-2-(phenyl-oxymethyl)-5-nitro-imidazoles and process for their manufacture
IPC: A61P31/04
Filed: 1977-11-04
Abstract: 1-Ethyl-2-(phenyloxymethyl)-5-nitroimidazoles of the formula I <IMAGE> in which A is a sulphur atom or the sulphoxy group (-SO-), R<1> is methyl or ethyl and R<2> is hydrogen, methyl or halogen, are prepared by reacting a corresponding nitroimidazole with an appropriately substituted phenol or an alkali metal or ammonium salt of the phenol.   The novel compounds are suitable for controlling protozoal diseases in humans and animals as are caused, for example, by infection with Trichomonas vaginalis or Entamoeba histolytica. These compounds are also active against bacteria and fungi.
Patent GB-1128594-A (GB)
Title: Improvements in or relating to character reading system
IPC: G06K9/00
Filed: 1966-10-14
Abstract: 1,128,594. Character recognition. COLUMBIA RIBBON & CARBON MFG. CO. Inc. 14 Oct., 1966 [15 Oct., 1965], No. 46057/66. Heading G4R. In a character reader, positive and negative voltage conditions derived from reading a character are passed over respective channels to respective inputs of a bi-stable which feeds further storage means. As a magnetic or photoelectric sensing head covers the whole character (which is in the E13-B font) in one sweep, a voltage waveform is produced having positive and negative spikes at selected ones of seven positions. The spikes are standardized and noise reduced by a non-linear negative-feedback amplifier (to standardize amplitude), a low-pass filter (to remove noise) and a limiter. Each positive pulse resulting sets (or leaves set) a flip-flop via a Schmitt trigger, and each negative pulse resets (or leaves reset) the flip-flop via an inverter and a Schmitt trigger, the two pulse polarities being separated by diodes. The state of the flip-flop at each of six times is shifted into a shift register by clock pulses, the generation of which commences after a delay following the first positive pulse. The shift register contents are then decoded to identify the character.
Patent GB-1276687-A (GB)
Title: Radar intruder detector
Inventor: BUCKLEY NORMAN IAN
IPC: G01S13/56
Filed: 1969-09-19
Abstract: 1276687 Doppler radar; frequency detectors SHORROCK DEVELOPMENTS Ltd 30 July 1970 [19 Sept 1969] 46276/69 Headings H3A and H4D [Also in Division G4] A radar detector comprises a transmitterreceiver assembly and a directive horn mounted on a rotatable platform driven by a motor, means converting movement indicating signals into impulses, means stopping the motor if a first number of impulses is received within a first period of time and means actuating an alarm if a second number of pulses is received within a second period of time. The transmit-receive assembly includes a Gunn-diode and is mounted with a light-opaque, microwave permeable stationary casing. Doppler signals therefrom pass to a pulse shaper which amplifies, filters and squares the signals which pass through a commutator to the evaluating circuits. The pulses arriving at input B are passed via a diodetransistor pump to capacitor C1 If the voltage thereon exceeds a threshold TR10 turns on, triggering a monostable TR11, TR12 having a two-minute period. This blocks TR13 actuating a "non-urgent" alarm and stopping the motor driving the platform. The second counter TR14 is now enabled by the turning off of TR15 by the monostable output. C4 is now charged by the Doppler pulses and if sufficient pulses (e.g. 40) are received before the monostable resets, TR16 is turned on, thereby blocking TR18 and releasing RLB to actuate the "urgent" alarm 8. At the end of the monostable period RLA is re-energized, starting the motor, although alarm 8 may be arranged to continue. An infrared detector may be mounted on the platform with the radar to act as a fire alarm.
Patent GB-1249983-A (GB)
Title: Improvements in or relating to torque-controlled clutch mechanisms for power transmissions
Inventor: DYMOCK COLIN BARTLEY
IPC: F16D43/30
Filed: 1967-10-10
Abstract: 1,249,983. Clutch control. SMITHS INDUSTRIES Ltd. 10 Jan., 1969 [10 Oct., 1967], No. 46338/67. Addition to 929,761. Headings F2C and F2L. The torque-controlled clutch mechanism of the parent Specification is modified by forming the recess 132 wider, so that sustained application of overload torque is required to force follower roller 133 out of the recess 132 to disengage the electromagnetic clutch 112. As described, the clutch mechanism forms part of a multiplex control channel system described in Specification 1,249,982.
Patent GB-1300039-A (GB)
Title: Coupling for pipes
IPC: F16J15/10
Filed: 1971-10-06
Abstract: 1300039 Pipe couplings; joint-making packing SANDVIK AB 6 Oct 1971 [13 Oct 1970] 46483/71 Headings F2B and F2G Pipes 10, 13 having flanged ends 11, 14 are connected by a coupling in which a sealing ring 19 or 20 is seated in a closed annular track formed between the opposed faces of the flanges. The axial cross-sectional area of the sealing ring is at most as large as that of the track which comprises opposed grooves in each flange face, each groove having, in axial crosssection, at least one triangular portion 12 or 15 and at least one radially directed rectangular or trapezoidal section 25 forming an edge 26 directed at and deforming the sealing ring. As shown in Fig. 1, the pipe flanges are clamped together by a coupling ring member 18 which engages sloping shoulder portions 16, 17 of the flanges 11, 14. The ring 18 is formed in diametrally divided halves which are bolted together (Fig. 8, not shown). As shown in Figs. 2, 3 the sealing ring 19 may be of elastomeric material such as nitrile rubber or a composite sealing ring may be used comprising a core 20 and cladding 21 of elastic polymer materials. In other arrangements, sealing rings of metal are used, e.g. acid-resistant steel with a coating of P.T.F.E. or having a portion plated with another metal such as silver, copper or aluminium. A rectangular portion 25 of the track accommodates a tapered portion of the sealing ring and the soft coating of the ring is penetrated by the edge 26. In another embodiment the edge 26 is formed with a more acute angle smaller than 150 degrees to increase the extent of this penetration (Fig. 6, not shown).
Patent GB-1497316-A (GB)
Title: Peptides for control of intestinal motility
IPC: A61K35/30
Filed: 1975-11-11
Abstract: 1497316 Pituitary polypeptide compositions RESEARCH CORP 11 Nov 1975 [14 Nov 1974 3 Nov 1975] 46577/75 Heading A5B [Also in Division C3] A pharmaceutical composition, which may be used for the control of intestinal mobility and which also has vasoconstrictor activity comprises a pharmaceutically acceptable carrier and a compound which is selected from (1) a peptide designated coherin A having the following characteristics (i) contains glycine (ii) is soluble in water, slightly soluble in absolute ethanol, insoluble in acetone and diethyl ether (iii) has the following ultra-violet spectrum; # max, 274 nm (pH 1), 240 nm and 290 nm (pH 11); # min, 248 nm (pH 1), 233 nm and 272 nm (pH 11) (iv) has a molecular weight of 300 to 600 (v) has a melting point of 200 to 205‹C (vi) has an isoelectric point at pH 6.0 (vii) has an Rf value of 0.70 (n-butanol/pyridene/acetic acid/ water, 60:40:12:48 by volume); an Rf value of 0.33 (n-butanol/acetic acid/water, 4:1:5 by volume) by thin-layer chromatography on silica gel on glass; (2) a peptide designated coherin B having the following characteristics (i) contains glycine, serine and glutamic acid (ii) is soluble in water, slightly soluble in absolute ethanol, insoluble in acetone and diethyl ether (iii) has the following ultra - violet spectrum; # max 276 nm (pH 1), 239 nm and 290 nm (pH 11); # min 236 nm (pH 1), 253 nm and 276 nm (pH 11) (iv) has an isoelectric point at pH 8.5 (v) has an Rf value of 0.58 (nbutanol/pyridene/acetic acid/water, 60:40:12:48 by volume), an Rf value of 0.03 (n-butanol/ acetic acid/water, 4:1:5 by volume) by thinlayer chromatograph on silica gel on glass and pharmaceutically-acceptable salts of (I) and (2). The peptides (I) and (2) may be obtained from bovine posterior pituary.
Patent GB-1069277-A (GB)
Title: Improvements in or relating to nuclear fuel element fabrication
Inventor: LLOYD HENRY
IPC: G21C21/02
Filed: 1964-11-16
Abstract: 1,069,277. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 25, 1965 [Nov. 16, 1964], No. 46672/64. Heading G6C. A nuclear fuel element is made by loading a body of ceramic nuclear fuel into a sheath and subsequently disintegrating the body in the sheath. Uranium dioxide cylindrical pellets may be inserted in a stainless steel sheath and disintegrated by ultrasonic vibration or by heating and rapidly cooling, e.g. during initial use in the reactor. If the pellets are annular, they may be disintegrated by drawing an oversize rod or wire through the central aperture. Alternatively, end faces of solid pellets may have projections and adjacent faces smaller dimples so that the pellets may be disintegrated by applying axial force.
Patent GB-1029970-A (GB)
Title: Method and apparatus for making flexible strips carrying hooked or looped elements
IPC: A44B18/00
Filed: 1962-12-12
Abstract: 1,029,970. Hooked and looped fabrics for fastenings. J. BILLARANT. Dec. 12, 1962, [Dec. 19,1961; Oct.17, 1962; Nov.16, 1962], No. 46974/62. Heading D1K.  Hooked and looped fabrics for fastenings are made by corrugating a sheet of threads 11 between forming bars 48 and coacting bars 67, which bars are both attached to endless chains. A layer of thermoplastic 10 is extruded on to one surface of the corrugated threads and the coacting bars 67 are withdrawn. If hooks are required then supporting bars 144 Fig. 29 (not shown), and cutters 155 are brought up and the loops are cut by blades 174, 175. The fabric is then stripped from the forming bars 48. If loops are required the forming bars 48 are withdrawn transversely of the fabric strip. The loops or hooks are preferably of a synthetic plastics material and heat set.
Patent GB-1445080-A (GB)
Title: Trucks
IPC: B60P1/04
Filed: 1972-10-11
Abstract: 1445080 Tipping trucks B M KEMP-SMITH F H FORD D R GRIFFITHS and W A BROMLEY 19 Oct 1973 [11 Oct 1972] 46985/72 Heading B7B [Also in Division B8] A combined pedestrian controlled fork-lift truck and skip tipping truck comprises a chassis 10 with a mast 24 pivoted thereto at 23 for movement between a vertical, fork operating position and a horizontal, skip receiving, position. The mast is pivoted by a hydraulic piston and cylinder 25 and has a latch mechanism 33 to releasably engage an end of the skip and a pin and socket coupling 31, 32 to secure the other end of the skip. A prime mover 15 is mounted on the chassis at the opposite end to the pivot 23 to counterbalance the mast and skip and is coupled to drive the truck through a hydro-static transmission. A steering tiller 17 is provided.
Patent GB-1026113-A (GB)
Title: Polymer compositions and the production of articles therefrom
Inventor: MUIRHEAD LESLIE ALFRED
IPC: C08L23/02
Filed: 1963-11-28
Abstract: A composition comprises a polyolefin blended with at least 100% (by weight of the polyolefin) of a finely-divided filler and at least 10% (by weight of the polyolefin) of a normally liquid plasticizer.  The preferred polyolefin is a high density polyethylene, but polypropylene and copolymers of ethylene with propylene or butene-1 are also mentioned.  Suitable fillers are calcium carbonate, silica, china clay, carbon black, magnesium carbonate, and calcium sulphate. Where the composition is to be used as an electrical insulant, a filler coated with a higher fatty acid, salt or ester thereof is preferred. The plasticizer can be any normally liquid organic compound with little or no volatility below 250 DEG  C., such as mineral oils or esters, e.g. butyl stearate.  The composition may be used for making collapsible tubes (e.g. toothpaste tubes) or for electrical cables.
Patent GB-1320457-A (GB)
Title: Wad structures for use as cushioning components of cartridges
IPC: F42B7/08
Filed: 1971-10-11
Abstract: 1320457 Wads OLIN CORP 11 Oct 1971 [12 March 1971] 47265/71 Heading F3A A cushioning wad for use in a shotgun cartridge comprises peripheral legs 16 which flex radially outwardly on firing. The cup portion containing the shot is divided into petals. The wad is made of polythene.
Patent GB-1493542-A (GB)
Title: Production of thermostable lactose
IPC: C12N9/38
Filed: 1975-11-18
Abstract: 1493542 Enzymic hydrolysis of lactose to glucose and galactose R J REYNOLDS TOBACCO CO 18 Nov 1975 [4 Dec 1974] 47520/75 Heading C2S [Also in Division C3] Lactase having an improved thermal stability which has been made by cultivating an organism belonging to the genus Bacillus in a nutrient medium containing lactose, is used for hydrolysing lactose to yield glucose and galactose. Example C describes the hydrolysis of a sweet whey feedstock by passage through a column of dried aggregate particles following cultivation, which are rehydrated with 50% lactose solution buffered at pH 7À0 with 0À05 M phosphate.
Patent GB-1143236-A (GB)
Title: Improvements in or relating to gravity roller conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G13/00
Filed: 1965-11-10
Abstract: 1,143,236. Roller conveyers. FISHOLOW PRODUCTS Ltd. 9 Feb., 1967 [10 Nov., 19651, No. 47602/65. Heading B8A. [Also in Division F2] A roller 9 of a gravity roller conveyer includes a retarding element 20 formed of plastic and provided with a lobe 21. When the roller is rotated anticlockwise, liquid 26 is forced through a converging space 24 and the roller is retarded. The liquid 26 is a silicon oil or equivalent liquid to permit operation at temperatures around 80‹ F. The roller is supported on a shaft 16 clamped in spring-loaded levers 13 which normally urge the roller slightly above freely rotatable rollers (8), Fig. 1 (not shown). A non-metallic ring 30 avoids damage to certain loads. In a modified mounting, Fig. 7 (not shown), the shaft (16) is supported on a scroll cam (27) having a toothed periphery (28) which engages a stationary toothed rack (29), the roller being maintained in full engagement with the load, as before. The stationary retarding element may have two or four spaced lobes, Figs. 5, 6 (not shown), the whole of the space between the roller shell and the retarding element then being substantially filled with silicone oil or equivalent liquid.