baber/WOPTO huggingface dataset:
Patent GB-1221140-A (GB)
Title: Improvements in ice dispenser.
IPC: F25C5/00
Filed: 1968-09-11
Abstract: 1,221,140. Feeding ice blocks. GENERAL ELECTRIC CO. 11 Sept., 1968 [18 Sept., 1967], No. 43130/68. Heading B8A. Ice from a refrigerator falls into receptacle 4 and is discharged therefrom through opening 60 by means of conveyer 50, which comprises conveyer part 18 and conveyer part 61 which is mounted rigidly on the conveyer shaft and includes two passages 63, and scoop 70. The ice blocks are moved leftwards by conveyer part 18 so as to provide a surplus of blocks at the entry to conveyer part 61. Conveyer part 61 rotates as part of the conveyer so that scoop 70 entrains a block 72 which as the conveyer rotates moves up to position 72<SP>1</SP> and then slides forward into position 75<SP>1</SP> to be subsequently discharged at 60. A surplus of blocks thus passes through the conveyer portion 61 and is held up by wall 74 forming part of the conveyer. In this way the conveyer discharges a constant number of blocks per rotation from the blocks waiting at 74.
Patent GB-1212758-A (GB)
Title: Macromolecular fractionation
IPC: B01D71/28
Filed: 1968-09-11
Abstract: 1,212,758. Fractionating macromolecular materials. AMICON CORP. 11 Sept., 1968 [21 Sept., 1967], No. 43183/68. Headings C3P and C3U. A process for fractionating a mixture of macromolecular material comprises: (a) forming a solution of the material; (b) placing the solution in contact with a first upstream side of a fluid-permeable, microporous anisotropic membrane, and (c) applying a pressure to the solution which pressure is greater than pressure being exerted against a second downstream side of the membrane, thereby forcing a portion of the material in solution through the membrane. Macromolecular materials fractionated in examples are Dextran 40, Dextran 80 and polyvinylpyrrolidone.
Patent GB-1431528-A (GB)
Title: Process for heating and sintering ferrous powder metal compacts
IPC: B21J5/00
Filed: 1974-10-04
Abstract: 1431528 Induction sintering ferrous metal compacts GLEASON WORKS 4 Oct 1974 [15 Oct 1973] 43204/74 Addition to 1407557 Heading C7D Powder metal, particularly ferrous compacts are sintered by first pre-treating in a magnetic field with a frequency high enough to induce a current in the compact to a depth not exceeding “ the maximum compact thickness in order to reduce the electrical resistivity of the compact and then raising to sintering temperature by subjecting it to a magnetic field with a lower frequency than the first. The pre-treating is preferably effected in a R.F. magnetic field not less than 50 KHz e.g. 50-450 KHz and the sintering is effected in a magnetic field frequency of 1-10 KHz. Only selected portions of the compact may be pretreated in the R.F. magnetic field e.g. a smaller diameter portion so that when the compact is finally sintered in a lower frequency induction coil of constant diameter uniform heating is effected due to the reduced time of induction heating response of the pre-treated smaller diameter. Bevel and spun gears are produced from isostatically or mechanically pressed compacts of Fe powder to which is added 0À2-0À8% graphite.
Patent GB-1077477-A (GB)
Title: Improved fuel feed system for a rocket motor burning liquid fuel
IPC: F02K9/48
Filed: 1965-10-12
Abstract: 1,077,477. Liquid fuel rocket engines; centrifugal pumps. BÍLKOW G. m. b. H. Oct.12, 1965 [Oct. 15, 1964], No. 43311/65. Headings F1C and F1J. The invention relates to a fuel and oxidizer supply system for a rocket motor burning liquid fuel, the fuel and oxidizer being supplied to the combustion chamber by centrifugal pumps driven by a turbine and mounted on the same shaft as the turbine, at least one of the pumps being a multi-stage pump having at least three stages. The sequence of the pump stages on the shaft differs from their pumping sequence so that the pressure of each external stage is substantially equal to the pressure of the adjacent stage of the adjacent pump or to the clearance pressure of the turbine, whereby pressure difference at the seals is a minimum. In the rocket motor shown the oxidizer pump 6 which is a single stage pump and the fuel pump 7, which is a three-stage pump 7a, 7b, 7c, are driven by a turbine 4, the pump and turbine being mounted on a common shaft 5 which is supported in bearings 13, shaft seals 8 and 9 being provided between the oxidizer pump 6 and the fuel pump first stage impeller 7a and between the fuel pump second stage impeller 7b and the turbine rotor 4, respectively. Oxidizer is supplied to pump 6 through line 15 and discharges through lines 16 to the rocket motor combustion chamber 2, a portion of oxidizer being supplied through lines 17 to the auxiliary combustion chamber 1 to which fuel is also supplied through lines 21, the combustion gases from chamber 1 which contain unburned fuel first passing through the turbine 4 which is driven thereby, then into the main combustion chamber 2. Fuel is supplied through line 18 to the first stage impeller 7a then through line 19 to the second stage impeller 7b, and then through the line 20 to the third stage impeller 7c, finally discharging through lines 21 to the auxiliary combustion chambers 1.
Patent GB-1445582-A (GB)
Title: Mechanical actuating system
IPC: G05G5/18
Filed: 1973-09-18
Abstract: 1445582 Linkwork; hand-operation of brakes GIRLING Ltd 13 Sept 1974 [18 Sept 1973] 43655/73 Headings F2K and F2E A lever mechanism having a varying mechanical advantage, for providing a quick initial take-up in, for example, a vehicle braking system, comprises a primary lever 1 pivoted at 5 to a secondary lever 4 itself pivoted at 9 to a fixed bracket 8, the primary lever 1 being connected at 11 to an output, e.g. brake rod, member 10, the secondary lever 4 being spring biased at 30 in an anticlockwise direction to maintain a one-way acting serrated clutch pawl 15, pivotally carried at 16, on the lever 4, against a stop face 20, on the fixed bracket 8, clear of the brake rod member 10. During initial brake application, the lever 1 pivots about point 5 to take up brake clearance until the spring 30 yields after which the two levers 1 and 4 jointly move about the pivot 9, for increased mechanical advantage, to engage the one-way clutch pawl 15, with a serrated surface 17 on the brake rod member 10 to effect full brake engagement, a brake-retaining locking pawl 22 on the pivot 5 on the lever 4 engaging ratchet teeth 23 on the fixed bracket 8 to hold the brake lever unit in its fully engaged position, the locking pawl 22 being releasable by the usual spring-loaded push button 25 in the end of the lever 1, Figs. 4 and 5 (not shown) illustrate slightly modified forms of the one-way clutch device.
Patent GB-977694-A (GB)
Title: Starch derivatives
IPC: C07C59/105
Filed: 1960-12-22
Abstract: In the production of glucuronic acid or glucuronolactone by the hydrolysis of oxidized starch, keto groups produced by the oxidation of the starch are reduced back to secondary alcohol groups before the hydrolysis.  The starch may be a starch fraction, e.g. amylopectin. Oxidation may be with a nitric acid. Reduction may be with hydrogen in the presence of nickel, palladium, or platinum as catalyst or with sodium borohydride. The reduced product may be merely purified in solution by treatment with an ion-exchange resin and filtration, or may in addition be isolated by concentration in vacuo followed by pouring into methyl or ethyl alcohol, before hydrolysis.  Hydrolysis may be with hydrochloric, sulphuric, or oxalic acid under normal or superatmospheric pressure.  Cobalt chloride or sulphate may be present as hydrolysis catalyst.  The hydrolysed product may be purified in solution by treatment with barium chloride or hydroxide (to remove sulphuric acid) and activated carbon and by filtration before isolation.  Examples are given.ALSO:In the production of glucuronic acid or glucuronolactone by the hydrolysis of oxidized starch (see Division C2), keto groups produced by the oxidation of the starch are reduced back to secondary alcohol groups before the hydrolysis. The starch may be a starch fraction, e.g. amylopectin. Oxidation may be with nitric acid. Reduction may be with hydrogen in the presence of nickel, palladium, or platinum as catalyst or with sodium borohydride. The reduced product may be merely purified in solution by treatment with an ion-exchange resin and filtration, or may in addition be isolated by concentration in vacuo followed by pouring into methyl or ethyl alcohol, before hydrolysis.  Examples are given.
Patent GB-1398945-A (GB)
Title: Lip-forming tool
IPC: B21C37/29
Filed: 1973-09-20
Abstract: 1398945 Making pipe fittings E ROTHENBERGER [trading as ING EDWIN ROTHENBURGER SCHWEISSTECHNIK UND INDUSTRIEBEDARF] 20 Sept 1973 [26 March 1973 13 June 1973] 44284/73 Headings B3A and B3J In a tool for flanging a hole in a hollow body and comprising a hooked screwthreaded former 4 and a co-operating screwthreaded thrust member 12, V-grooves 18 increase the bearing area of the tool on the body to be flanged. Opposed flats (19, 20), Fig. 4 (not shown), may reduce the flange 14 to facilitate insertion of the former in the hole. The grooves 18 may be in the flange 14 or provided between cast elements attached to a plane flange.
Patent GB-1484496-A (GB)
Title: Apparatus for continuously separating debris from beets or other roots or tubers
IPC: B03B5/62
Filed: 1974-10-14
Abstract: 1484496 Wet separation of solids RAF FINERIE TIRLEMONTOISE SA 14 Oct 1974 [12 Nov 1973] 44437/74 Heading B2H A trough in which beets &c are conveyed in a current of liquid is provided with an apparatus for separating foreign matter, e.g. stones and sand, from the beets and comprising, at a break in the trough, a tank 5 connected respectively to an upstream portion 6 and to a downstream portion 7 of the trough, a rotatable wheel 1 with compartments 2 distributed over its inner circumferential surface arranged in the tanks, means 11 for supplying the compartments when at a lower level during the wheel rotation, with a rising liquid stream, said means being located on the upstream side of the wheel and adjacent the lower part of the wheel, and each compartment being provided with a liquid outlet passage 20, whereby foreign matter will fall into the compartments when the latter, during rotation of the wheel, are at the wheel lower level, whereas the beets &c will remain in suspension in the liquid within the wheel and will be discharged with the liquid from the wheel into the downstream portion 7 of the trough and a device 13 for collecting the foreign matter and discharging it from the wheel, the device being arranged underneath those compartments 2 which during rotation of the wheel are at the wheel upper level. The wheel 1 is integral with a perforated drum 3 and the assembly is mounted on a shaft 4 driven by a motor-transmission unit 9. The compartments 2 open on that side 10 of the wheel facing the upstream portion 6 of the trough and are defined by the spaces between partitions 14 which extend from one edge 16 of the wheel to an annular wall 17 at the other edge of the wheel. The device 13 for discharging foreign matter comprises a hopper 21 which supplies a chute 22. The beets and water discharging from the wheel flow through the drum 3, the water passing through the perforations in the tank 5 from which it is recycled into the wheel via a hopper 23, a pipe 24, a variable-speed pump 25 and the means 11, the latter comprising one or two diffusers 26, 27 which open through a ring-like wall 32 adjacent the wheel edge 16. The wall 32 has a shoulder 33 which deflects the water stream from the diffusers towards the outlet passage warp 20 of the wheel compartments 2.
Patent GB-1061906-A (GB)
Title: Improvements relating to safety devices
Inventor: CARLOSS GEORGE MCELROY
IPC: G08B17/06
Filed: 1962-11-24
Abstract: 1,061,906. Thermocouple cables. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 25, 1963 [Nov. 24, 1962], No. 44518/62. Headings H1A and H1K. The central conductor of a cable 5 (Fig. la) comprises alternate lengths 1, 2, 1<SP>1</SP> of two different materials, the junctions 7, 8, 9 being covered alternately by heat-insulating material 3 and heat-conducting material 4, 6, so that in the presence of a rising (or falling) temperature alternate hot and cold junctions are formed along the cable, generating a thermoelectric E.M.F., which may be used for alarm purposes. The heat-insulating member 3 may be foam plastic cylinders, and the heat-conducting members 4, 6 may be interlocked steel spirals flared to present a large external surface. In an alternative form, alternate junctions are covered with large or small masses of metal to form the cold and hot junctions respectively. Manufacturing details for such a cable are described.
Patent GB-1474905-A (GB)
Title: Leveling valves
IPC: B60G17/056
Filed: 1973-09-24
Abstract: 1474905 Vehicle suspension levelling valves GIRLING Ltd 18 Sept 1974 [24 Sept 1973] 44625/73 Heading B7D A vehicle suspension levelling valve comprises an inlet valve 8 having a needle element 14 for controlling admission of pressure fluid from an inlet chamber 11 to an intermediate chamber 12 communicating with a port 13 for connection to the suspension elements of a vehicle, an exhaust valve 9 having a needle element 14A for controlling release of fluid from the intermediate chamber 8 to an exhaust chamber 6, and valve operating means including an operating shaft 2 having a recess 2 receiving a reduced diameter portion of a rockable member 5 which is received in apertures 16, 16A in the needle elements 14, 14A and in accordance with the direction of rotation of the shaft 2 pivots on a projection 16, 16A in the aperture 16, 16A of one needle element 14, 14A to more the other needle element to the open position. The needle elements 14, 14A are urged towards the closed position by springs 15, 15A, and the element 14 passes through a seal 18 separating the intermediate and exhaust chambers 12, 6. In use the inlet chamber 11 is connected to an accumulator or other fluid pressure source, and an outlet port 7 from the exhaust chamber 6 is connected to a fluid reservoir. The valve is mounted on the sprung part of the vehicle and the shaft 2 connected to an unsprung part by linkage including lost-motion or damping means. In another embodiment the rockable member carries adjustable tappets which act on the ends of the needle elements, and a chamber in the valve housing contains a damping piston linked to the operating shaft.
Patent GB-1262709-A (GB)
Title: Improvements in or relating to combined clutch and brake device for heavy machines
IPC: B30B15/10
Filed: 1969-09-10
Abstract: 1,262,709. Clutch-brake combination; threedisc disc brakes. VYZKUMNYUSTAVTVARECICH STROJU A TECHNOLOGIE TVARENI. 10 Sept., 1969 [13 Sept., 1968], No. 44755/69. Headings F2C, F2E and F2L. In a combined clutch and brake unit for presses comprising a driven clutch plate 10 on an output shaft 8 which also carries a brake plate 26, the clutch is engaged against springs 6 by a presser plate 36 connected by cooling vanes 35, 38 to a piston 7 in a cylinder 4 and connected by a rod 15 through the shaft 8 to the brake presser plate 22 connected by rods 23 to an annular piston 24 in a cylinder 19. Springs 25 engage the brake. The cylinders 4, 19 contain flexible diaphragms 12, 17 respectively. The clutch is engaged and the brake disengaged by simultaneous application of hydraulic or pneumatic fluid to cylinders 4 and 19, the rod 15 positively ensuring disengagement of the brake on engaging the clutch.
Patent GB-1436604-A (GB)
Title: Hinged joint
IPC: E05D11/06
Filed: 1973-09-27
Abstract: 1436604 Pinless hinge GENERAL MOTORS CORP 27 Sept 1973 [5 Oct 1972] 45219/73 Heading E2F A hinge of plastics material comprises flaps 1, 2 joined by a thin articulation region 3, the flap 2 also bearing a flexible band 8 which in use of the hinge is connected to the flap 1 to limit the opening angle of the hinge. The band 8 is rendered flexible by thin articulation regions 8a-d parallel to the region 3, so that it is folded over in the closed position, Fig. 6, and stretched out in the open position, Fig. 5 (not shown), and carries pins 9, 10 engageable in expandable hollow pegs 4, 5 by which the flap is mounted to a wall 11. The hinge may be held in the open position by engagement of a lug (1') on the flap 1 in an aperture (8") in the band 8, Figs. 8, 9 (not shown).
Patent GB-1503764-A (GB)
Title: Process for removing water-soluble ionic compounds from aqueous solutions by means of ultrafiltration
IPC: C02F1/44
Filed: 1975-10-31
Abstract: The removal of water-soluble ionic compounds from aqueous solutions is described. To the aqueous solutions is first added a water-soluble salt former which is oppositely charged with respect to the ionic compounds to be removed. Ultrafiltration under pressure is then carried out. The process for removing water-soluble ionic compounds can be used for the purification of effluents from dyeworks and tanneries.
Patent GB-1505950-A (GB)
Title: Electric cells having a beta alkaline alumina electrolyte eg sodium-sulphur cells
IPC: H01M10/39
Filed: 1976-11-01
Abstract: 1505950 Na-S, P or Se cells COMPAGNIE GENERALE D'ELECTRICITE SA 1 Nov 1976 [20 Nov 1975] 45349/76 Heading H1B A secondary cell comprising a tank 8 for Na, a tank 2 for S, P or Se, a solid electrolyte 12 of beta-alumina with a grid 17 of e.g. Ni, Cr, Mo, stainless steel or graphite, and graphite washers 16 between the tank 2 and the electrolyte, has a resistor R between the grid and the negative side of the charging circuit. It is stated that this prevents a permanent layer of sulphur forming on the electrolyte.
Patent GB-995064-A (GB)
Title: Improvements in or relating to butadiene polymerization and catalyst therefor
IPC: C08F136/06
Filed: 1963-11-18
Abstract: A polimerization catalyst composition formed by mixing (a) an organometallic compound of magnesium or aluminium, (b) titanium tetrachloride or tetrabromide, and (c) the mixture obtained by mixing (1) an organo-metal hydride of the formula RnM1Hm, where R is an alkyl, cycloalkyl, or aryl radical, M1 is selected from aluminium, gallium, indium, or thallium, n and m are 1 or 2, and the sum of n and m is equal to 3, and (2) iodine.  The Specification contains long lists of components (a) and (1), and specific catalyst systems. Polymerization may be carried out in a continuous manner and is usually effected in a hydrocarbon diluent, and the polymer recovered by conventional techniques. In the examples butadiene is polymerized to give a rubbery polymer containing a high percentage of cis 1,4-addition linkages.
Patent GB-928913-A (GB)
Title: Improvements in connections for pipes and tubes
IPC: F16L47/00
Filed: 1959-06-17
Abstract: 928,913. Pipe connections. A. STULZ. June 17, 1959 [May 26, 1959; June 13, 1959], Divided out of 928,911. Class 99(1). In a connection between pipes 2<SP>1</SP>, 5<SP>1</SP> the latter have interfitting corrugations 3<SP>1</SP>, 7<SP>1</SP> and each pipe has a substantially constant wall thickness in the region of the corrugation thereof. Only one of the pipes, preferably the outer pipe, is of a hardened thermoplastic material, and the other pipe is flexible and is of a material different from that of the said first pipe. The corrugations may be moulded in the pipes and be helical in form in which case the pipes are screwed together, the flexible pipe being previously coated with an adhesive, or the pipes may be welded together; alternatively, the corrugation in the inner pipe is formed by a heated roller. The flexible pipe may be reinforced by an internal helix or wire mesh fabric embedded in the wall thereof.
Patent GB-1366434-A (GB)
Title: Apparatus for abrading flexible products
IPC: D06C11/00
Filed: 1972-10-04
Abstract: 1366434 Grinding ETAB AC SCHOLAERT SA 4 Oct 1972 [5 Oct 1971] 45798/72 Heading B3D [Also in Division D1] A machine for abrading flexible strips, e.g. fabrics, comprises a cylindrical array of rotatable abrading cylinders 2, the abrading surfaces of which define a circular path over which the fabric 10 is constrained to pass in contact with these surfaces directly from one cylinder 2 to the next by guide rollers 7, 8. The cylinders 2 are emery-covered and are distributed about a cylindrical frame 1 pivotable about a shaft 4 which, in operation, is fixed in any angular position. In use, the cylinders 2 are driven so that adjacent cylinders rotate in opposite directions. A container 9 for receiving dust is located between the rollers 7, 8 which are connected by a speed varying device (not shown) to permit adjustment of the fabric tension. The fabric 10 passes over a roller 20, through a tensioning device 17, over rollers 21, 8, over the cylinders 2, over rollers 7, 22, 23, 24, through a shearing or cropping machine 27, over rollers 25, 26 and is received by a laying device 15 or a winding device.
Patent GB-1491818-A (GB)
Title: Electrolytic capacitor
IPC: H01G9/035
Filed: 1975-11-06
Abstract: 1491818 Electrolytic capacitors SPRAGUE ELECTRIC CO 6 Nov 1975 [8 Nov 1974] 46115/75 Heading H1M An electrolytic capacitor comprises porous polypropylene as a spacer between the electrodes and a liquid electrolyte wherein the solvent is selected from amides, lactams, phosphate esters, phosphonamides, ether alcohols and ether nitriles. Specific examples of the solvent are tri-n-butyl phosphate, N-methylpyrrolidone, hexamethylphosphortriamide, ethylene glycol butyl ether, N,N-dimethylformamide, and 3-methoxypropionitrile. The solute may be di-isopropylammonium borodi-2,3- naphthalenediolate, formed in situ from diisopropylamine, boric acid and 2,3-naphthalenediol.
Patent GB-1043379-A (GB)
Title: Filter
IPC: B01D35/147
Filed: 1964-11-12
Abstract: 1,043,379. Filter with bypass valve. COMMERCIAL SHEARING & STAMPING CO. Nov. 12, 1964 [June 15, 1964], No. 46212/64. Heading B1D. A filter includes a valve which allows fluid to be filtered to pass through the filter element at one pre-selected fluid pressure, and provides a filter element bypass passage at a higher pre-selected fluid pressure, the pre-selected pressures being determined by a resilient means operating on the valve. In Fig. 1, the resilient means is a spring 29 which holds slidable spool 26 in a first position so that hand 27 seals off inlet chamber 11 from filter inlet port 21. At a pre-selected pressure, fluid to be filtered pushes spool 26 to the right (second position) so that fluid passes via flats 31 through filter inlet port 21, hollow filter 20, and port 21a into chamber 13, passes across flats 32 and leaves via chamber 12 and port 16. At a higher pre-selected pressure, spool 26 moved further to the right (third position), so that fluid can pass direct from chamber 11 via the top of port 21 and flats 31 to chamber 13, and leave via flats 26 and chamber 12. In Fig. 4 (not shown) the filter incorporates a second exit chamber (69) between the inlet (51) and the chamber (53) equivalent to chamber 13, and the spool (55) is a hollow cylinder sealed at the inlet port end with radial perforations (67) which extend the length of the cylindrical part so that in the filtering position filtered fluid passes from the hollow interior of the element (62) via these holes into the hollow spool and leaves the filter via passage 52 (equivalent to passage 12) and also possibly via the holes 67 through the second exit chamber (69). In a third position, the spool moves sufficiently to the right for the fluid to have direct access from the entry port via the top of the filter inlet to the second exit chamber (69).