baber/WOPTO huggingface dataset:
Patent GB-1106372-A (GB)
Title: Improvements in or relating to water-turbines, pumps, and reversible pump/turbines
Inventor: BRAIKEVITCH MICHAEL
IPC: H02K5/128
Filed: 1963-11-06
Abstract: 1,106,372. Driving dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. 2 Nov., 1964 [6 Nov., 1963], No. 50278/67. Divided out of 1,106,371. Heading H2A. [Also in Division F1] In, a reversible turbine/pump in, which the rotor of an electric machine is carried directly on the periphery of the runner blades 1, water is retained in. the duct 5 and prevented from reaching the stator by a seal 24 engaging the rotor 23 on either side. The sealing rings 24 are resiliently supported on springs 27 and forced into contact with the rotor by water pressure in chambers 28, this pressure being balanced by the pressure of water passing the seal. This water is drained away at 29, 30. As shown, additional seals 32 carried on springs 33 direct water to drain pipes 35. Any water escaping this pipe passes to a further pipe 36, and as an additional safeguard, throwers 37 direct any residual water away from the stator. When the turbine is stationary, chambers 34 are pressurized to engage seals 32 forcibly. The stator is protected by a non-magnetic ring 25.
Patent GB-1047079-A (GB)
Title: Malting process
IPC: C12C1/047
Filed: 1964-12-10
Abstract: In the malting of grain by a process wherein cereal grain is subjected to germination and drying, the germination including enzyme formation which in turn modifies the grain kernels, the rootlet and respiration losses are reduced by adding a dilute solution of acetic acid during germination at a stage in the germination when the enzyme formation has progressed sufficiently to complete the malting process, the quantity of acetic acid added being insufficient to adversely affect the subsequent enzymatic modification of the grain. The pH of the grain should be reduced to between 5.75 and 5.4. There are employed concentrations of between 200 p.p.m. and 1000 p.p.m. acetic acid relative to the original grain.
Patent GB-1412224-A (GB)
Title: Thermosetting compositions
IPC: C08G73/12
Filed: 1973-10-30
Abstract: 1412224 Curing epoxy resins; polyimides RHONE-POULENC SA 30 Oct 1973 [31 Oct 1972] 50434/73 Headings C3B and C3R A composition which cures to a heat resistant solid comprises: (I) an epoxy resin, (II) a polyamine containing at least two primary amine groups either a compound or a mixture of III and IV. The composition may optionally contain a bis-maleimide in which case V may comprise up to 90% of the combined weight of V plus III and/or IV. The ratio of the number of maleimide groups introduced by III and/or IV and V when present to the number of NH 2  groups introduced by II may be 0.5-20. The ratio of the weight of III and/or IV and V when present to the weight of I may be 0.1 to 10. I may be an epoxy novolac resin or a tetraglycidyl ether of a tetrahydric tetranuclear phenol. II may be bis-(4-aminomethyl)methane. An example of III is 4-maleimido - 4<SP>1</SP> - acetoxy - succinimido - diphenylmethane. IV may be 1-maleimido-2-acetamidodiphenylmethane and V may be N,N<SP>1</SP>-4,4<SP>1</SP>-di. phenylmethane-bis-maleimide. The compositions may be cured by heating, e.g. for 24 hours at 200 C. followed by 24 hours at 250 C. Reference has been directed by the Comptroller to Specification 1,276,646.
Patent GB-1208889-A (GB)
Title: Electric coil having a base plate with connecting pins
IPC: H01F27/02
Filed: 1967-11-07
Abstract: 1,208,889. Electric coils. -PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 7 Nov., 1967 [10 Nov., 1966], No. 50602/67. Heading H1T. The wire-ends 15 of a coil 1 are embedded in grooves 17 in one or more edges of a thermoplastic, insulating, supporting plate 5 and rest in incisions 13 in an attached, insulating connecting plate 7 with a higher softening point than the supporting plate. The wires 15 are soldered at 13, as by dip-soldering, to printed wiring elements on the bottom side of plate 7 for electrical connection to projecting pins 11.
Patent GB-1204350-A (GB)
Title: Improvements in filtering apparatus
Inventor: THORNE JOHN
IPC: B01D29/00
Filed: 1967-11-07
Abstract: 1,204,350. Cleaning fluid-filters. J. THORNE. 6 Nov., 1968 [7 Nov., 1967], No. 50658/67. Headings BID and BIT. A housing is divided into inlet 2 and outlet 12 chambers by a plurality of filter elements 5 (only one shown), each element having an outlet 7 and being backwashed independently by a respective fluid pusher device 8 which enters outlet 7 to compress the fluid therein (see 8c) but whose rest position 8b is outside outlet 7. As described and shown device 8 is a vane actuated by a cam 10 and follower 14 arrangement, the several cams being mounted on a common camshaft 11 at different angular displacements to provide sequential backwashing. The vane 8 is spring loaded, the cam raising it to position 8b and then releasing it so that the spring overshoots it to position 8c. In a second embodiment (Fig. 2, not shown) the vane 8 is replaced by a rectilinearly-stroking piston (23). The filter bag 5 may be internally supported by wire mesh 6 or circumferential rings (21).
Patent GB-1417628-A (GB)
Title: Electrophotographic films
IPC: G03G15/05
Filed: 1973-10-31
Abstract: 1417628 Sputtering TORAY INDUSTRIES Inc 31 Oct 1973 50706/73 Heading C7F [Also in Division G2] A sputtering apparatus 10 has a film of trans-. parent plastics material 4 which is fed across a chromium plated roller 7 and taken up on roller 6. "Noble" metal 9 is sputtered from electrode 8 by D.C., R.F. or plasma sputtering. The "noble" metal is Au, Ag, Pt, Pd, In or Rh and the film is preferably polyethylene terephthalate but many other films are specified. The electrodes 7 and 8 may be cooled with water, brine, ethylene glycol or a halogenated hydrocarbon. More than one noble metal may be sputtered or an admixture with another metal or a compound. An atmosphere of Ar, He, Ne, Kr, Xe, N 2 , O 2  or air may be used in the apparatus.
Patent GB-1316469-A (GB)
Title: Electrophotographic apparatus
IPC: G03G15/02
Filed: 1970-10-26
Abstract: 1316469 Electro-photography INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1970 [24 Nov 1969] 50721/70 Heading G2H [Also in Divison H1] A corona charging device for an earthed xerographic drum comprises charging wires 21 and auxiliary rod 30 electrodes alternately arranged in the same plane, the mountings for the charging and auxiliary electrodes being separable Fig. 2 (not shown). The charging and auxiliary electrodes may have diameters of 0.002 and 0.05 inch resp. The charging potential may be 6-8 kv. The auxiliary electrodes may have a potential of between earth potential and 25% of charging potential. A suppressor grid (42) Figs. 5 and 6 (not shown) may be situated between the charging/auxiliary electrodes and the drum.
Patent GB-1165940-A (GB)
Title: Improvements in Halogen Cycle Incandescent Lamp with Planar Filament
IPC: H01K1/18
Filed: 1967-11-08
Abstract: 1,165,940. Electric incandescent lamps. GENERAL ELECTRIC CO. 8 Nov., 1967 [12 Dec., 1966], No. 50827/67. Heading H1F. [Also in Division C1] An electric lamp has an envelope 1 of fused silica with flattened pinch seals 2a, 2b at the ends, a planar filament consisting of side-by-side segments 5 of coiled tungsten wire joined at their ends by bight portions 7a, 7b, the outermost ends of the filament being connected to leadin conductors 10 extending through the pinch 2a, support wires 13a in the upper pinch 2a engaging the bight portions 7a and support wires 13b in the lower pinch 2b engaging the bight portions 7b, and a filling of inert gas (e.g. argon) and a halogen. The envelope may be enclosed in an outer envelope 15 containing nitrogen or helium, being supported by conducting wires 16 connected to posts 25 attached to the base 17 of the envelope by ferrules 23 sealed to the base. Wires 21 sealed in the lower pinch 2b are connected to the conductors 16 by wires 22 extending from the conductors and looped round the wires 21 to allow for relative longitudinal movement of the lead-in wires and envelope 1. The conductors 16 are welded to wires 18, the ends of which are embedded in the pinch 2a, for supporting the envelope 1, and are connected to the ends of the filament by fuses 20. The support wires 13a and the inner portions 9 of the lead-in wires 10 are preferably connected by a bridge 14 of vitreous material e.g. quartz or silica glass. In assembling the lamp, the supports 13a and lead-in wires 9 are pressed into the softened surface of the bridge 14 by a knife-like tool.
Patent GB-1123861-A (GB)
Title: Improvements in or relating to diaryl sulphones
IPC: C07C317/22
Filed: 1965-12-01
Abstract: Sulphones of formula R-SO2-R1, wherein R and R1 are aryl hydrocarbon radicals which may be alkoxy-, aryloxy- or halogen-substituted, are prepared by reacting RSO2Cl (I) with R1H at 90-160 DEG  C. in a non-aqueous liquid medium in presence of 0.001 to 0.05 parts ZnCl2 based on the weight of I.
Patent GB-1079269-A (GB)
Title: Lubricant for transparent polyvinyl chloride
IPC: C08L23/06
Filed: 1965-12-02
Abstract: Rigid PVC contains as a processing lubricant up to 10% by wt of a low pressure polyethylene having a molecular weight of 3000-20,000 and a density of 0.93-0.97.  There may also be present esters of montan acids (obtained by oxidizing montan wax) with ethylene or butylene glycol, stearic acid, calcium stearate, cadmium laurate, barium laurate, aluminium stearate, lead palmitate, stearyl stearate, propionate, isopropionate, laurate or octoate, or glycerol stearate or palmitate.  The compositions are used for making transparent articles.
Patent GB-1129120-A (GB)
Title: Improvements relating to pulp dewatering machines
IPC: D21F9/04
Filed: 1965-12-08
Abstract: 1,129,120. Cylinder paper-making machine. ESCHER WYSS G.m.b.H. 8 Dec., 1965 [12 Dec.. 1964: 25 Feb., 1965], No. 52144/65. Heading D2A. A paper-making machine comprises a rotatable screen cylinder, the uprising part of which forms a sheet-forming zone and is surrounded by a trough, and a partition member disposed between, and in sealing engagement with, the cylinder and trough and adjustably movable in the circumferential direction of the cylinder to vary the size of the sheet forming zone. The end walls of the zone may have slots into which the ends of the partition member fit-the member being adjustable by spindles or chains-, or a number of spaced holes. A partition member is described which has an eccentric to lock it in position.
Patent GB-1414026-A (GB)
Title: Method of electrolytically forming a layer of chromium carbide and/or chromium boride
IPC: C25D3/66
Filed: 1973-11-13
Abstract: 1414026 Electrolytic coating with chromium boride and/or carbide TOYOTA CHUO KENKYUSHO KK 13 Nov 1973 [16 Nov 1972 23 June 1973 (2) 26 June 1973] 52642/73 Heading C7B A layer of chromium carbide and/or boride is formed on the surface of an article of iron, a ferrous alloy or sintered WC/Co and which contains at least 0.05 wt per cent of C in at least a surface layer thereof by cathodic treatment in a molten bath containing a boron oxide compound and a substance containing Cr. The boron compound may be B203, or Na or K borate. The Cr substance may be Cr; a Cr alloy e.g. FeCr; NH4, K or Na dichromate; K 2 CrO 4 ; Cr 2 O 3 ; or a halide e.g. CrCl 2 , CrCl 3 , CrF 3 , CrBr 3  or CrI 3 , and may be present in an amount to give 1-50 wt per cent of Cr in the bath. Other bath additives may be NaCl, KCI, NaF, P 2 O 5 , NaOH, KOH or a sulphate, carbonate or nitrate. When FeCr is used it may be anodically dissolved in the molten boron compound at a c.d. of 01-10A/cm<SP>2</SP> and this may be simultaneous with the cathodic treatment of the article. The process may be conducted at 800-1100C for 1 min-13 hours at a c.d. of 0.003-15A/cm<SP>2</SP> using a graphite or steel crucible as anode. The substrate may be acid-cleaned before treatment. It is stated that multiple layers may form, the outer being a carbide and/or boride of Cr with or without Fe and the inner layer being a carbide of the substrate e.g. FeB, Fe 2 B, W 2 B 5  or Co 2 B.
Patent GB-1060550-A (GB)
Title: Electrical circuit for controlling the polarity and magnitude of a load current
IPC: H02P7/295
Filed: 1964-12-29
Abstract: 1,060,550. Control of D.C. motors; rectifying. GENERAL ELECTRIC CO. Dec. 29, 1964 [Jan. 10, 1964], No. 52715/64. Headings H2F and H2J. [Also in Division G3] The armature 11 of a shunt - wound motor is supplied through forward or reverse silicon controlled rectifiers 14, 15, associated with pulse transformers having secondary windings 16, 17, and primary windings 18, 19. A currentlimit signal applied to line 32 includes a phaseshifted voltage and a portion of the back E.M.F. signal from armature 11 which also supplies a feedback signal to line 33. Forward and reverse command signals are derived from potentiometer 37 and are combined with phase-shifted signals from circuit 44, 45, the composite signal appearing on line 46. Opposed D.C. bias is added by capacitors 47, 48. When potentiometer 37 is positioned at its mid-point, the composite signal oscillates about zero, and the forward and reverse input waveforms never reach zero. Under these conditions. transistor 55 is conductive and transistor 6 1  is non-conductive so that the rectifiers 14, 15, do not conduct. If it is desired that the armature 11 should oscillate slightly about a zero speed position, potentiometer 51 is adjusted to reduce the bias so providing a small amount of forward and reverse armature current. A forward command signal reduces the conductivity of transistor 41 so that terminal 43 becomes more positive. The reverse signal does not reach zero, but the forward input signal becomes positive at an early point in the positive halfcycle of the source voltage so that transistor 61 conducts and transistor 62 becomes non- conducting. Capacitor 65 charges and sends a pulse through unijunction transistor 63 and primary winding 18 to fire rectifier 14. This action is modified by the current-limit signal on line 32 for determining the average current which can be safely supplied to the armature. As the speed increases, the diode 69 blocks the current-limit signal at an earlier instant in the appropriate half-cycle and permits the forward control circuit to respond to the input signal at that instant. The delay in permitting the forward control circuit to become operative limits the average current passed by the rectifier 14. Reverse operation is similar. The feedback on line 33 opposes the command signal to afford closed loop control.
Patent GB-1535519-A (GB)
Title: Analogue store circuit intended in particular for a radar system
IPC: G11C27/02
Filed: 1975-12-24
Abstract: 1535519 Analogue stores THOMSONCSF 24 Dec 1975 [27 Dec 1974] 52882/75 Heading G4G  An analogue storage circuit comprises a storage capacitor 1, an input amplifier 2 of low output impedance, an output differential amplifier 3 of high input impedance, the amplifiers being connected to the capacitor and to input and output terminals 4, 5 through switches 6, 7, 8, 9 (usually FETs). During a sampling period, switches 6, 7 are closed, switches 8, 9 open and the capacitor acquires a voltage proportional to the input voltage, the input terminal 4 being directly connected to the output terminal 5. During a holding period, switches 8, 9 are closed, switches 6, 7 open and the output voltage of the amplifier 2 is compared to the voltage on the capacitor by amplifier 3 which feeds an error signal back to the input of amplifier 2. The error is minimized and the voltage appearing at the output terminal 5 is, therefore, the voltage on the capacitor. The circuit may incorporate a lowpass filter 16 (e.g. an R.C. circuit) to improve stability.
Patent GB-1475770-A (GB)
Title: Depression advance device for an ignition distributor of an  internal combustion engine
IPC: F02P5/10
Filed: 1974-12-09
Abstract: 1475770 Rotary ignition distributer DUCELLIER & CIE 9 Dec 1974 [14 Dec 1973] 53070/74 Heading H1N In a rotary ignition distributer of an internal combustion engine the suction-operated timing advance device comprises a pair of suction chambers 8, 18 Fig. 1 containing flexible diaphragms 10, 17 arranged to provide a stepwise ignition timing advance. The first diaphragm 10 acts against a light spring 12 and is coupled to the lever 3 carrying the contact breaker 1 and pivoted at 4 on the base plate 5. An adjustable connection between the connecting link 11 and the lever 3 is provided by a rotatable abutment cam 13. The second chamber 18 is connected to the vacuum system through a threshold valve (not shown) whereby it is inactive at low depressions so that an adjustable abutment 22 on the arm 3 engages an abutment 20 of the second chamber 18 to prevent further ignition advance up to a preset depression. At higher depressions the diaphragm 19 withdraws the stop 20 so that the diaphragm 10 is free to move the lever 3 to make a sudden further timing advance. In a modification the second chamber 18A Fig. 4 is mounted on the first chamber 8A axially in line and the diaphragm 10A has a projection 22A engageable with a stop 20A connected to the higher depression diaphragm 17A. With this arrangement only a single adjustable connecting rod 11 is necessary for connection to the lever 3.
Patent GB-1273089-A (GB)
Title: Dispenser for menstrual tampons
Inventor: MORANE BRUNO
IPC: A61F13/20
Filed: 1970-11-09
Abstract: 1,273,089. Tampon introducer. L'OREAL. 9 Nov., 1970 [7 Nov., 1969], No. 53239/70. Heading A5R. A dispenser for a menstrual tampon comprises a substantially cylindrical element 2 adapted to house the tampon and a piston 7 for ejecting said tampon from the element, the element being made of a supple material and being radially expandable by possessing substantially parallel to its axis at least one fold 3 extending along the entire length of its wall, the front end of the element being provided with supple tongues 4 extending towards the axis of the element. The supple material of the element 2 may be polyethylene and the front end of the element and the corresponding end of the tampon may be coated with a water-soluble lubricant such as a polyvinyl alcohol.
Patent GB-1111089-A (GB)
Title: Improvements in or relating to the production of graft copolymers
Inventor: KROMOLICKI ZYGMUNT
IPC: C08F279/02
Filed: 1965-12-16
Abstract: A graft copolymer is produced by forming an emulsion of one or more copolymerizable monovinyl or monovinylidene compounds in an aqueous synthetic rubber latex, said emulsion containing an oil-soluble multi-functional organic peroxidic compound, heating the emulsion to a temperature not exceeding 50 DEG  C. with agitation until substantial swelling of the synthetic rubber particles has occurred, adding potassium ferricyanide to initiate the copolymerization of the monovinyl or monovinylidene monomer with the rubber, and subsequently raising the temperature as the copolymerization proceeds. In a preferred embodiment, the polymerization temperature is maintained at 50 DEG  to 55 DEG  C. up to 50% conversion of the monomer, raised to 60 DEG  C. and maintained at that value until 90% conversion and then raised to a final temperature of 70 DEG  to 75 DEG  C.  Specified rubbers are polybutadiene and butadiene-styrene or -acrylonitrile copolymers.  The graft monomers may be a mixture of styrene and acrylonitrile and/or of alpha-methyl styrene and methacrylonitrile. In the examples polybutadiene is grafted with styrene and acrylonitrile, the peroxides used being (1) ditertiarybutyl diperphthalate, (2) said diperphthalate together with cumene hydroperoxide, (3) and (5) multifunctional methyl ethyl ketone peroxide and (4) multifunctional cyclohexanone peroxide.  The graft copolymers produced are blended with a styrene-acrylonitrile copolymer and antioxidant.
Patent GB-1368169-A (GB)
Title: Production of silicon carbide articles
IPC: C01B31/36
Filed: 1972-11-20
Abstract: 1368169 Articles of carbon, and silicon carbide NIPPON OIL SEAL INDUSTRY CO Ltd 20 Nov 1972 53582/72 Heading C1A [Also in Division B5] Silicon carbide articles having a construction comprising a multiplicity of layers are obtained by forming a body of a multiplicity of layers of a cellulosic material; carbonizing the body so formed in a non-oxidizing atmosphere, and then reacting the resultant carbon body with silicon or a compound thereof to produce the desired silicon carbide article. The cellulosic material may be paper, and the multiplicity of layers may be obtained by corrugating at least one sheet of paper and laminating it or them with non-corrugated sheets of paper. The corrugated and non-corrugated sheets may be arranged alternately. The lamination of corrugated and uncorrugated sheet may be rolled to form a cylindrical article. One side of the paper sheets used to form the preliminary body may be treated with adhesive, e.g. coated with starch or a resin. The paper may also be resin impregnated. The resin may be phenol-formaldehyde, furan, epoxy or indene coumarone resin or the impregnant may be coal-tar pitch. The carbonizing step may be carried out at 600-900‹ C. in an inert atmosphere. The inert atmosphere may be argon, helium, nitrogen or hydrogen. The reaction with silicon may be achieved by heating the carbon body at 1700 to 2200‹ C. in an atmosphere of silicon monoxide.
Patent GB-1371970-A (GB)
Title: Digital data transfer systems
IPC: H03M13/13
Filed: 1972-11-21
Abstract: 1371970 Error correction systems INTERNATIONAL BUSINESS MACHINES CORP 21 Nov 1972 [20 Dec 1971] 53670/72 Heading G4A Data is operated on according to a matrix H (defined in the Specification) by pairs of shift registers, each pair of registers operating on a sub-matrix defining a partition of matrix H, and further registers to produce check bits for use in error correction after utilization of the data, e.g. in a tape unit or transmission channel. In a specific example, 2-bit bytes B 0 -B 30  corresponding to the first partition of matrix H are supplied serially to the first pair of shift registers SRB1, SRB2, the former performing modulo 2 addition of corresponding bits in successive bytes, while the latter performs modulo 2 addition of the incoming byte to the product of the register contents with the companion matrix corresponding to the primitive polynomial 1+ x<SP>2</SP> + x<SP>5</SP> used to generate the sub-matrix of the first partition of matrix H. A similar pair of shift registers is used for bytes A 0 -A 6  corresponding to a second partition of matrix H generated by the primitive polynomial 1 + x + x<SP>3</SP>. Outputs 11-17 and 21-25 of the registers are modulo 2 added as shown to form check bytes C1-C3. The same arrangement may be used to generate error syndromes S1-S3 after utilization of the data, the check bits associated with the data being included in the modulo 2 addition as shown. An error byte in the first or second partition results in at least two non-zero syndrome bytes, the first being respectively S1 and S2, and an error in a check byte results in a single non-zero syndrome byte corresponding to the check byte in error. The actual erroneous byte in the partition identified by the syndrome can be determined by entering the first non-zero byte into the appropriate shift register SRB2, SRA2 and shifting until the contents match the remaining non-zero syndrome bytes, the number of shifts then indicating the byte position within the partition. Correction of the erroneous byte is performed by exclusive OR of the appropriate syndrome byte error pattern with the byte, Fig. 6 (not shown).