baber/WOPTO huggingface dataset:
Patent GB-1404884-A (GB)
Title: Melamine-formaldehyde resins containing calcium carbonate
IPC: C08L61/28
Filed: 1973-09-04
Abstract: 1404884 MF moulding resins containing CaCO 3  STANDARD OIL CO 4 Sept 1973 [8 Dec 1972] 41420/73 Addition to 1348950 Heading C3R A melamine-formaldehyde moulding composition comprises 150-900 phr of CaCO 3 . There may also be present cellulose as filler, e.g. 5-70 phr, particularly when there is present less than 200 phr CaCO 3 . In the example a CaCO 3  is added to a syrup from melamine and 37% formalin in 1 : 2À25 molar ratio; the slurry is dried and ground and milled with Zn stearate, phthalic anhydride and colorants.
Patent GB-932090-A (GB)
Title: Binary scale reading system
IPC: H03M1/00
Filed: 1960-12-01
Abstract: 932,090. Electric selective-signalling systems. W. H. KLIEVER. Dec. 1, 1960, No. 41437/60. Class 40 (1). A reader for a natural binary scale includes a patterned plate, Fig. 3, divided into strips which correspond in number and location to the denominational tracks of the binary scale, each strip having a series of transparent and opaque areas occurring in the same cyclic sequence as the corresponding areas on the binary scale. A pair of photo-cells is associated with each strip to sense the light transmitted through the superimposed areas of the binary scale and reader plate, binary coded signals representing the relative position of the binary scale and reader plate being obtained by determining which photo-cell of each pair is more highly illuminated. In the system shown in Fig. 1, each pair of photo-cells AC0, BC0; AC1, BC, &c. is connected in a bridge circuit 10. Interrogation pulses are applied to the bridge circuits 10 in sequence over pulse transformers 11 by means of a beam-switching tube 17 controlled by a clock pulse track on a magnetic programme tape 67. If cell AC0 is more highly illuminated than BC0 a negative output pulse is obtained on interrogation to set bistable circuit 14 to the " 1 " state. The remaining bi-stable circuits 39, 61 are set or not set on interrogation of the associated bridge circuit in dependence on which of the cells A, B is brighter and on the state assumed by the preceding bi-stable circuit. The reading for each scale track thus obtained on leads H, I, J is gated into a comparator 25 where a comparison is made with a position command signal from tape 67. Any error signal is used to control a servo system for repositioning the binary scale with respect to the reader plate. A pulse obtained from output 16 of tube 17 at the end of an interrogation cycle is used to reset bi-stable circuits 14, 39, 61 in preparation for the next reading.
Patent GB-1018958-A (GB)
Title: Measuring instrument with alloy tension strip
Inventor: DURER ALFRED
IPC: C22C5/00
Filed: 1962-11-02
Abstract: A measuring instrument having a rotatable meter mechanism includes a tension strip made of an alloy consisting of 1-50% of one or more of the metals Fe, Co, Ni, W, Mo, Cu and Ag, and balance Pt, Pd and/or Rh, 1-30% of which may be replaced other platinum group metals e.g. Ir, Os and/or Ru and up to 20% of the platinum group metal content replaced by Au.  For a binary alloy of Pt, the alloying metal is not less than 15%.  A prior Pt-Ni alloy is disclosed containing 8-12.5% Ni.
Patent GB-851466-A (GB)
Title: Aerial navigation system
Filed: 1958-12-24
Abstract: 851,466. Radio navigation. STANDARD TELEPHONES & CABLES Ltd. Dec. 24, 1958 [Dec. 30, 1957], No. 41703/58. Class 40(7). Relates to a mobile navigation receiver providing a bearing indication relative to a ground beacon having a directional aerial rotating at 15 c.p.s. and radiating an azimuthal pattern comprising a major and eight minor lobes, Fig. 2 (not shown), the aerial being energized with (1) semi-random pulse signals, (2) a coarse reference signal when the major lobe is directed north and consisting of a burst of 12 pulse pairs with a 12 microsecond spacing between the component pulses of each pair and a 30 microsecond spacing between corresponding pulses of adjacent pairs, and (3) a fine reference signal when each of the minor lobes is directed northward and consisting of twelve pulses with a uniform 12 microsecond spacing. According to the invention the amplitude modulation of the received signal at "main" and "auxiliary" frequencies 15 c.p.s. and 135 c.p.s. respectively is compared with corresponding-frequency waves generated via limiter 33 and (1) ringing circuit 28, capacitor 36, sawtooth generator 39 and filter 40 and (2) ringing circuit 29, capacitors 38, 37, sawtooth generator 44 and filter 45. It is stated that the invention provides for the maintenance of accurate bearing indication in the presence of undesired additional amplitude modulation, e.g. due to site effects and to noise, of the transmitted signals. In the receiver the video output of decoder 31 has its 15 c.p.s. and 135 c.p.s. amplitude modulation (a.m.) envelopes separated by filters 25, 26 respectively and the main and auxiliary reference signals separated from the a.m. envelope by limiter 33. The limiter output is fed to (1) a ringing circuit 28 tuned to 33 kc/s. to respond to the main reference pulses (which are separated by 30 microseconds), and (2) a ringing circuit 29 tuned to 83 kc/s. to respond to the auxiliary reference pulses (which are separated by 12 microseconds). Circuit 28 is coupled to sawtooth generators 39, 44 via capacitors 36, 37 respectively and circuit 29 to sawtooth generator 44 via capacitor 38, capacitor 37 impedance reducing the input to generator 39 from circular 29 to negligible proportions. The sawtooth generators are connected to corresponding filters 40, 45. Bearing indication. The output of filter 25 after phase shifting in motor-driven unit 42 is compared with filter 40 output in unit 41, motor 50 running until a gate pulse of width corresponding to 40 degrees of azimuth generated in unit 57 coincides with the output of ringing circuit 28. Motor control circuit 52 is then fed via switch 61 of relay 63 with the output of phase comparator 47 for more accurate bearing indication, the comparison being made between filter 26 output and phase shifted filter 45 output.
Patent GB-1484933-A (GB)
Title: Apparatus for purifying gases
IPC: F01N13/02
Filed: 1974-09-25
Abstract: 1484933 Supporting exhaust purification catalytic element ENGELHARD MINERALS & CHEMICALS CORP 25 Sept 1974 [26 Sept 1973] 41797/74 Heading B1F An apparatus for purifying gases comprises a casing defining an enclosed space; means defining a gas inlet communicating with the enclosed space; means defining a gas outlet communicating with the enclosed space; a unitary skeletal ceramic structure having (i) two end faces, a plurality of gas inlets and a plurality of gas outlets and (ii) a plurality of gas flow paths therethrough from the gas inlets to the gas outlets, the ceramic structure being positioned in the casing to provide a space between the structure and the casing; a flange member positioned adjacent to the periphery of one of the two end faces of the ceramic structure and positioned inwardly with respect to the casing so that it bridges the space between the casing and the ceramic  structure and is positioned over the marginal edge portion of the ceramic structure; and a resilient pre-compressed cushioning member having prior to assembly into the apparatus a solid density of from 10-50% positioned under further compression between the flange member and the adjacent end face of the ceramic structure so that the volume thereof is decreased by an amount in the range of from 10-50% relative to the volume thereof prior to assembly into the apparatus to provide a resilient connection between the flange member and the ceramic structure and to grippingly hold the ceramic structure over the temperature range experienced by the apparatus.
Patent GB-1094624-A (GB)
Title: Device for controlling machines with optical beams
Inventor: TSUKKERMAN SOLOMON TOBIASOVICH
IPC: G01C15/00
Filed: 1964-11-15
Abstract: 1,094,624. Controlling machines photo-electrically. LENINGRADSKY INSTITUTE TOCHNOY MEKHANIKI I OPTIKI. Nov. 15, 1964, No. 42074/64. Heading H4D. [Also in Divisions E1 and G3] A machine is controlled by two optical beams modulated at frequencies F 1 , F 2  and having adjacent parts to define an equisignal zone, and the machine carries a receiver which includes photo-electric conversion of the beams into electric signals of frequencies F 1 . F 2 , resonant circuits respectively tuned to F 1 , F 2  and means deriving the difference in amplitude of the outputs of the resonant circuits. In one embodiment the transmitter comprises an incandescent lamp 1, Fig. 1, amplitude-modulating discs 8, 9, a beam splitting prism 12 and a catadiatropic objective 13, 14; the receiver includes tuned circuits 19 the rectified outputs from which are compared to give the signal for controlling the machine which may be a dredger, a metal-cutting machine or a machine for laying railway tracks. Two-dimensional, and programmed (see Division G3), control may be added. Manual control in one plane is added by adjacent differentlycoloured discs. The transmitter may comprise lasers, Fig. 9 (not shown) or gas discharge tubes, Fig. 8 (not shown).
Patent GB-919307-A (GB)
Title: Automatic measuring and controlling device for grinding machines, being centre grinding machines in particular
Inventor: KRALOVANSZKY PETER
IPC: B24B49/04
Filed: 1960-12-07
Abstract: 919,307. Measuring electrically. SZERSZAMGEPFEJLESZTO IMTEZET. Dec. 7, 1960, No. 42143/60 Class 40 (1). A feeler gauge for measuring the diameter of a workpiece 3 (Fig. 1) on a centre grinding machine comprises a V-shaped head 1 with a centrally protruding feeler 2 attached to the movable core 4 of a balanced transformer, connected in a bridge circuit. The bridge output, indicative of the diameter of the workpiece, is shown on a meter, and also fed to relays set to stop the machine at the desired diameter, and to change the machining operation, e.g. from coarse to fine, at predetermined diameters. The feeler head is clamped to the machine by a double arm link 8, 9 and biased against the workpiece by a spring 5.
Patent GB-1511097-A (GB)
Title: Dispenser for beverages
IPC: B67D3/02
Filed: 1976-10-12
Abstract: 1511097 Beverage dispensers JET SPRAY COOLER Inc 12 Oct 1976 [21 June 1976] 42311/76 Heading B8N A beverage dispenser has an outlet tube 28 made of highly thermal conducting material so as to keep the temperature of a valve within the tube at substantially the temperature of beverage within the bowl 12 of the dispenser. The tube has a shoulder 58 to define a valve seat for a valve plunger 50 and an outlet spout 30. The spout may be surrounded by insulation 96. A vent tube 62 is connected to a vent passage 60 in the valve plunger to prevent accumulation of beverage downstream of the valve. The valve is actuated by a lever 68 which also actuates a switch 76 for the motor 78 of a stirrer 44. The bowl is refrigerated and the beverage is milk.
Patent GB-1514040-A (GB)
Title: Printing apparatus
IPC: B41J2/30
Filed: 1976-10-13
Abstract: 1514040 Printers NCR CORP 13 Oct 1976 [21 Oct 1975] 42520/76 Heading G4H In a dot-matrix printer, a print head is driven across the record medium at a speed determined in accordance with the (variable) rate of supply of data to be printed, and print timing signals are supplied from means including a voltagecontrolled oscillator at a corresponding rate so that the dot matrix columns are substantially uniformly spaced.
Patent GB-886800-A (GB)
Title: Composite laminated structures
IPC: B60C1/00
Filed: 1959-12-15
Abstract: A vulcanizable composition, which will adhere to highly unsaturated rubbers such as natural rubber, diene-styrene copolymers and mixtures thereof, comprises a blend of at least 50% chlorinated butyl rubber and not more than 50% of brominated butyl rubber.  The composition may also contain light coloured fillers, such as talc or titanium dioxide, ultramarine blue, and vulcanizing ingredients such as zinc oxide, magnesium oxide, calcium oxide, sulphur, benzothiazyl sulphide, thiocarbamates, tetramethyl thiuram disulphide and stearic acid.  Applications specified are laminates consisting of a first layer containing a vulcanized highly unsaturated rubber and a second layer containing the vulcanized blend of halogenated butyl rubbers. A tubeless tyre is described which contains a sidewall of halogenated butyl rubbers adhering to a carcass of natural or GR-S rubber.
Patent GB-1514990-A (GB)
Title: High-voltage transformer
IPC: H01F27/28
Filed: 1975-10-17
Abstract: 1514990 Transformers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Oct 1975 [21 Oct 1974] 42695/75 Heading HIT A high voltage transformer 10 has a low voltage winding 2 of metal foil and a high voltage winding 7 which may be moved with respect to the low voltage winding 2 in the region A of its magnetic field to vary the inductance between the windings and selectively tune the transformer for minimum losses. A space is allowed between the end of the low voltage winding 2 and the yoke 4 for the adjustment to be performed. Alternatively (Fig. 2, not shown) the low voltage winding may be split into two parts separated by a gap over which the high voltage winding is situated for adjustment. The foil winding may consist of an insulating foil, e.g. "Mylar" (Registered Trade Mark), wound together with a metal foil.
Patent GB-910354-A (GB)
Title: Parallel multiple endless rope aerial ropeway
IPC: B61B12/00
Filed: 1959-12-16
Abstract: 910,354. Rope railways; rope grips. KOROGI, K. Dec. 16, 1959 [Dec. 24, 1958], No. 42835/59. Classes 78 (2) and 104 (2). In a parallel multiple endless rope aerial ropeway the supporting ropeway comprises at least two ropes R1, R2, arranged parallel to one another at a certain distance apart, which are simultaneously held endwise under tension and each carriage is provided with a rope grip comprising a plurality of swing- able grip elements C3 each of which embraces one of the ropes R1 or R2. In the terminal station A, Figs. 1 and 2, a frame A 1 supports a driving sheave A2 which is driven by reduction gear A3. The two parallel ropes R1, R2 engage grooves in the sheave A2 and are supported on wheels A4, the rope R2 cooperating with intermediate adjusting wheels A5 and guide wheels A6. Both ropes R1, R2 are endless and extend to rope receiving wheels B1 at a terminal station B, Figs. 3 and 4. At the station B the two ropes R1, R2 co-operate with guide wheels B2, B3, rope R2 also cooperating with adjusting wheels B4, and are supported on tension sheaves B5, B6 supported by a frame B7. The frame B7 moves one or both of the sheaves B5, B6 to tension the ropes R1, R2. A winder B10 operating on a rope B11, extending from a fixed point around a wheel B14 on the frame B7 then round a pressure regulator B13, provided with a time-limit switch connected in the circuit to the motor of the winder B10, to a tension wheel B15 on the frame B7 and then to the winder B10, ensures that the frame B7 will always be under the tension of a spring mechanism B12. A similar arrangement is shown and described using three supporting ropes. Automatic pushing equipment A7, B8 for restarting the carriage C is provided at the terminal stations A and B. Each carriage C is provided with a rope grip C1 having, for each rope, a pair of wheels C2 and a pair of rope grip elements C3, Fig. 9. Each grip element C3, Figs. 10 and 11, is rotatable about C4 on the carriage C and has a curved surface C5 formed with side pieces C6, C7. A wedge portion C8 is provided on the side piece C6 and wedges C9, C10 on the side piece C7. The wedge pieces engage with helical grooves R<SP>1</SP> in the rope R to enable the carriage C to be moved thereby. Rope grippers C14, Figs. 9 and 12, supported by a shaft C13 are held at their upper ends against the sides of a cam-wheel C16 by means of a spring and the cam-wheel C16 is mounted on a shaft C15 which is rotated by the carriage when traversing inclined ropes to force, due to the alteration in the peripheral thickness of the cam-wheel C16, the lower ends of the gripper C14 into gripping engagement with the ropes R1, R2.
Patent GB-1140594-A (GB)
Title: Improvements in and relating to dynamo electric machines
Inventor: RICHARDSON PHILIP
IPC: H02K3/487
Filed: 1966-09-28
Abstract: 1,140,594. Securing windings of dynamoelectric machines. C. A. PARSONS & CO. Ltd. 29 June, 1967 [28 Sept., 1966], No. 43256/66. Heading H2A. A dynamo-electric machine, e.g. turbogenerator stator, has slot embedded conductors 2 wedged by two side members 4a, 4b which engage recesses in the sides of the open slot mouth, overlap a portion of the conductors, and are mutually separated by a space containing at least two wedges 5, 6 having their wedge-shaped surfaces 5a, 6a extending longitudinally of the slot and being relatively movable in this direction. The members may be of a moulded or extruded epoxy resin glass laminate, phenol-formaldehyde resin impregnated asbestos, nylon, or other semi-rigid plastics and in the embodiment shown are interconnected by a cross member 4c. The members and wedges may extend the whole slot length or be divided into discrete lengths; they may be sprayed with P.T.F.E. to assist relative motion, and have between them flexible rubberized asbestos strips. Access to the wedges, which may be of epoxy resin glass, may be gained through slots in the member 4.
Patent GB-977850-A (GB)
Title: Production of morpholinothio benzothiazoles
IPC: C08K5/00
Filed: 1962-11-15
Abstract: 2-(Morpholinothio)-benzothiazole or a 2-(dimethylmorpholinothio)-benzothiazole is prepared by oxidizing a mixture of either 2-mercaptobenzothiazole or 2, 21-dithiobis(benzothiazole) and morpholine or a dimethylmorpholine by means of an inorganic oxidizing agent and in the presence of an inert organic solvent, the morpholine reactant being present in an amount of from not substantially less than the theoretical quantity to an excess of up to 50% of the theoretical quantity.  Specified oxidizing agents are NaOCl, NaOBr, KOCl, NaOI, H2O2, K2S2O8, Cl2, Br2 and K3Fe(CN)6 2,6- and 3,5- are specified dimethylmorpholines. Specified solvents are C1- 5 alcohols, toluene and pyridine; water may be present. Reaction temperatures of 45 DEG -80 DEG C. may be used. Reference has been directed by the Comptroller to Specification 841,688.
Patent GB-922646-A (GB)
Title: Improvements relating to clamping devices
Inventor: DZUS THEODORE
IPC: F16B21/04
Filed: 1961-12-04
Abstract: 922,646. Clamps. DZUS FASTENER CO. Inc. Dec. 4, 1961, No. 43290/61. Class 44. A clamping device comprising plates 20, 22, Fig. 3, bearing jaws 26, 28 and with registering apertures 30, 32 is moved towards and away from the clamping position by means of a rotatable stud 26 bearing a cam slot 52 which is engaged by a bar 54 extending across an aperture 32 in the plate 22. The plate 22 is bowed to provide resilience. In this embodiment the plates are hinged at one end by tabs 36 extending through apertures 38. In a modification, Figs. 6-10 (not shown), the resilient means is provided by a helical spring surrounding the shank of the stud, the stud and spring being surrounded by a cup. In both embodiments fastening brackets are secured to the upper plate. In a further arrangement, Fig. 14, plates 100, 102 are maintained in contact when in the unclamped position by means of a pair of flanges 114 carried by plate 102 which partially overlap the upper surface of plate 100. In this arrangement the fastening brackets are carried by plate 102.
Patent GB-1375600-A (GB)
IPC: G10K11/16
Filed: 1972-09-19
Abstract: 1375600 Silencers GENERAL ELECTRIC CO 19 Sept 1972 [6 Oct 1971] 43316/72 Heading F1B A gas turbine exhaust silencer comprises a row of boxes 35 filled with acoustical absorbent thermal insulating material, the acoustically absorbent boxes being spaced apart to form gas passageways 39 and at least one contiguous row of substantially empty boxes 69 having hollow interiors and having adjacent opposite side walls aligned with the acoustically absorbent boxes to continue the gas passageways, the adjacent opposite sidewalls being formed with openings 75. The exhaust gases from the turbine pass via an exhaust plenum and transition Fig. 1 (not shown) into the passages 39 between box sections 35 which have perforated side walls 49 for low frequency sound absorption. The gases then flow via the resonator section comprising a row of boxes 69 which alternate selected frequencies. The acoustic box section and resonator section may be followed by another low frequency section consisting of the same elements. Finally the gases pass between baffles (29) for high frequency attenuation. Specification 1361526 is referred to.
Patent GB-953214-A (GB)
Title: Improvements in coating compositions
IPC: C08L61/02
Filed: 1960-12-16
Abstract: A coating composition comprises an admixture of a solution of water-insoluble ketone-aldehyde resin in an organic solvent with an aqueous emulsion of a film-forming vinyl acetate polymer which is the polymerization reaction product of vinyl acetate with a polyoxyethylene compound. Ketone-aldehyde resins specified are reaction products of methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone and cyclohexanone with formaldehyde.  The organic solvents employed are ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, methanol and isopropanol. The polyoxyethylene compounds specified are solid block copolymers of ethylene oxide-propylene oxide and the polyethylene glycols. Plasticizers which may be incorporated are dibutyl phthalate, phthalate esters, phosphate esters, chlorinated biphenyls and citrate esters. Pigments, extenders, surfactants and thickeners may also be employed in the paints and varnishes. The extenders specified are calcium silicates, micas, silicas, clays, talc and carbonates. Thickeners employed are polyvinyl alcohol, cellulose derivatives and guar gum.  The coating compositions may be a paint or a varnish but may also be used as an adhesive or in the preparation of a patching compound or a texture finish.