baber/WOPTO huggingface dataset:
Patent GB-1161196-A (GB)
Title: Improvements in and relating to Electrical Heating Elements.
Inventor: LAWSON CHARLES FRANCIS
IPC: H05B3/16
Filed: 1967-03-07
Abstract: 1,161,196. Electric resistance heating. DYNAPLEX ENG. Ltd. 6 June, 1968 [7 March, 1967], No. 10617/67. Heading H5H. An electric heating element comprises at least one electrically insulating tubular refractory member 1 secured between a pair of electrically insulating refractory end members 3, 4, the tubular member or members 1 being formed by extruding a ceramic through a die and then firing, and lengths 8, 8<SP>1</SP> of resistance heating wire which lie in parallel bores 5, 6 in the tubular member 1. As shown, two tubular members 1 are coupled together by a ceramic member 2 which has bores 5, 6 aligned with those of members 1. The ends of the tubular members are grooved to allow lengths 8, 8<SP>1</SP> of resistance wire to be serially joined. One member 3 forms a terminal block and the other an end cap. The members 1, 2, 3, 4 are urged together by a tie rod 16 passing through a central passage 7 in the aligned members 1, 2, 3, 4 and nuts e.g. 17. A spring 18 between one nut and end cap 4 allows the members to expand thermally. The central passage 7 and tie rod may be omitted, the coupling member 2 being replaced by a longitudinally split clamp secured to a base and the members 1, 2, 3, 4 being urged together by spring clips fixed to the base and engaging the end members 3, 4. The tubular member 1 may have a longitudinally extending dovetail projection by which it may be slid into a suitable channel.
Patent GB-705288-A (GB)
Title: Method of manufacturing electric cable
Inventor: PETERS MELVILLE FULLER
IPC: H01C7/04
Filed: 1951-05-07
Abstract: 705,288. Cables. PETCAR RESEARCH CORPORATION. May 7, 1951, No. 10663/51. Class 36  A cable covered with beads of temperature sensitive resistance material is made by surrounding the conductors with a coating which contains an ingredient, for example steatite, which becomes attached to the conductors on heating, a second ingredient which shrinks and causes the coating to break up into beads, and a third ingredient which is a temperature sensitive resistance material. The coated cable is heated to a sufficient temperature to cause the coating to form beads.. The ingredient that shrinks on heating may consist of thorium oxalate or oxide and the thermistor material may consist of a mixture of feldspar, flint, borax, soda ash, nitre, fluorspar, and oxides of nickel, cobalt and manganese. In an alternative method the thermistor material is omitted from the coating and after the beads have been formed they. are impregnated with a solution of a material that is converted into a thermistor when heated, for example zinc chloride, iron chloride or sodium dichromate.  Fig. 1 shows an apparatus for forming the coating on two conductors 6 which are led through an orifice 4 at the lower end of a hopper 2 containing a plastic mixture of the ingredients with water. The coated conductors pass through a drying furnace 10 to form a dry solid cylindrical body 20 which is then baked till beads 40 are formed as shown in Fig. 6. The assembly of conductors and beads is then enclosed in a protective casing 50. Specifications '680,434 and 680,443 are referred to.
Patent GB-913152-A (GB)
Title: Improvements in combined silencers and spark arrestors for internal combustion engine exhausts
Inventor: BARTLE JAMES WILLIAM
IPC: F01N1/08
Filed: 1958-04-02
Abstract: 913,152. Centrifugal separators. VOKES Ltd. April 1, 1959 [April 2, 1958], No. 10692/58. Class 23. [Also in Group XXVII] A combined exhaust silencer and spark arrester for internal-combustion engines comprises a cylindrical casing 18, Fig. 3, with a vortex tube 20 having swirl blades 17, and a spark receiving chamber 28 provided with an outlet tube 10 spaced from the vortex tube outlet 3. The outlet 3 is flared to a greater diameter than the tube 10 so that spark particles centrifuged to the wall of the tube 20 are trapped in the chamber 28. The tube 10 can enclose flow straightener vanes secured to a central core 4 in the vortex tube. Chambers 23, 26 form expansion chambers interconnected by tubes 25 and doors 29 are provided for cleaning. In another embodiment the chambers 23, 26 are omitted. The outlet pipe 10 may be slidable in chamber 28 and the inner wall of the tube 20 may be sprayed with water.
Patent GB-806164-A (GB)
Title: Improvements in or relating to electromagnetic coils
IPC: H01F5/06
Filed: 1955-04-14
Abstract: 806,164. Transformers and inductors; magnetic compositions. 'SYLVANIA ELECTRIC PRODUCTS Inc. April 14, 1955 [April 15, 1954], No. 10747/56. Class 38 (2). An inductor or transformer comprises one or more coils 1 made by winding strips of copper or aluminium, enclosed in a coating 4 of ferromagnetic powder, e.g. powdered iron, embedded in a binder such as epoxy resin, nylon, polystyrene, wax, shellac, varnish, polyethylene, lacquer, glass or ceramic. The winding turns may be separated by a spiral strip 2 of insulation such as paper or resin, or by coating them with enamel, lacquer, resin, or oxide which may be produced by anodization. The coating 4 may be applied by dipping, spraying or painting and dried while rotating with their leads, soldered to the conductor ends, pushed into porous plastic mounted on a slowly turning shaft. Zinc oxide and mica may be added to the coating as fillers. With epoxy resin, a catalyst such as ethylene diamine, or diethylene triamine may be added. The coating may be separated from the coils by insulating discs or washers. The space about which the coils are wound may be filled by a non-magnetic or magnetic core 10, e.g. a screw plug. To form a transformer two coils may be wound side by side, Fig. 4, with one surrounding the other, or in a bifilar manner. The coating may extend between the coils. Interturn or intercoil capacity may be determined by the coating filler, the spacing, or the dielectric constant of the spacing material 13.
Patent GB-1343953-A (GB)
Title: Apparatus for compacting the placement material in road building
IPC: E01C19/48
Filed: 1971-04-22
Abstract: 1343953 Road laying machines LOSENHAUSEN MASCHINENBAU AG 22 April 1971 [2 May 1970] 10829/71 Heading E1G A self-propelled road finisher 12 provided with conventional means (not described) for laying, compacting and smoothing asphalt or other material 14 on a pre-compacted subgrade 10 is additionally provided with a vibratory ground compactor 16 located behind the propulsion tracks 11 and directly engaging the subgrade 10 ahead of the material 14 so that the latter is vibrated from below by subgrade surface waves 24. The compactor 16, which may comprise a plate or an endless band engaging the subgrade, is adjustably positioned and loaded by a radius rod 20 and hydraulic means 22, and has an unbalance vibrator 18.
Patent GB-288584-A (GB)
Title: Improvements in or relating to the manufacture of soap
IPC: C11D13/02
Filed: 1928-04-12
Abstract: 288,584. Lettermann, A. April 12, 1927, [Convention date]. Soap powders; soaps, processes, and materials and compositions for making.-Soap masses to be crushed, pounded or pulverized to form soap powders are obtained direct from a fatty oil by intimately mixing it with both the alkaline solution and the soda-ash, potash, or other like water-absorbing substance, and allowing the emulsion to stand and react for some hours. Perfumes, and organic solvents, e.g. benzine or chlorinated hydrocarbons, may be added. In an example, 25 lb. of peanut oil, 25 1b. of cocoanut oil, 6 lb. of soda ash, and 27 1b. of caustic soda solution of 38‹ BÚ are mixed at 60-70‹ C. and allowed to stand for 4-5 hours. The temperature rises to 90‹ C. or more.
Patent GB-1255412-A (GB)
Title: Improvements in or relating to an elastically yieldable insulating rail fastening device
IPC: E01B9/30
Filed: 1969-02-28
Abstract: 1,255,412. Securing railway rails to sleepers. SOC D'ETUDES FERROVIAIRES. 28 Feb., 1969 [15 March, 1968], No. 10848/69. Heading E1G. In an insulated resilient rail fastening a rail flange 2 is clamped to a sleeper 1 by a bolt 5 passing through a spring steel strip 17 bearing on a rectangular plastics body 10 provided with opposed arms 12, 13 seating respectively on the flange 2 and sleeper 1. The concrete sleeper shown has an angular lateral abutment face 8. For a metal sleeper, Fig. 2 (not shown), the lateral abutment face (28) is provided on a separate member (22). For a concrete sleeper, Fig. 3 (not shown) having a conventional curved abutment face (38) the body (10) is modified to provide a rounded seating boss (33).
Patent GB-1502722-A (GB)
Title: Silica sols
IPC: C04B28/24
Filed: 1976-03-18
Abstract: 1502722 Stabilized silica sols KOWA CHEMICAL INDUSTRY Ltd 18 March 1976 [20 March 1975 11 Nov 1975] 10875/76 Heading C1A [Also in Divisions C3 and C4] A composition comprises a silica sol, i.e. a colloidal dispersion of polymerized silica in a medium consisting mainly of water, together with (1) at least 5 parts by wt. of a dihydric alcohol containing at least 3 carbon atoms and (2) at least 2 parts by wt. of a water-soluble melamine resin, the proportions being based on 100 parts by wt. of sol, the diol may be propylene glycol, trimethylene glycol or triethylene glycol, and the melamine resin is preferably a methyl etherified melamine-formaldehyde precondensate. The composition may also contain a further synthetic resin, e.g. 10-35 parts by wt. of an emulsion polymer of vinyl acetate, vinyl propionate, vinyl sebacate and acrylic, methacrylic, fumaric, crotonic, maleic and itaconic acid or esters thereof. Coating compositions comprise 1 part of the above sol composition together with 2-20 parts by wt. of pigments, aggregates or fillers.
Patent GB-1212764-A (GB)
Title: Vehicle with braking system employing apparatus for indicating changes in angular velocity
Inventor: COYLE JOHN CADDEN
IPC: B60T8/82
Filed: 1968-03-06
Abstract: 1,212,764. Automatic acceleration control. ROLLS-ROYCE Ltd. Feb.27, 1969 [March 6, 1968], No.10921/68. Heading G3R. [Also in Division F2] A road vehicle having an hydraulic braking system (Division F2) is provided with means, such as a phonic wheel Figs.1,2 (not shown), generating a signal whose frequency is proportional to the angular velocity of a wheel; a converter, such as a diode pump circuit Fig. 7 (not shown), for converting the frequency to a voltage proportional to speed; a differentiator producing a voltage proportional to acceleration; a comparator Fig. 8 (not shown) giving an output signal when the acceleration signal differs by more than a predetermined magnitude from a reference signal; and a device, such as a solenoid valve, arranged to relieve the braking force upon receipt of said output signal. The differentiating circuit Fig.9 (not shown) comprises a capacitor-resistor network feeding an amplifier which has another such network in a negative feedback path to integrate the ripple from the converter; the ripple is further reduced by a Miller integrator circuit connected across the comparator input. The reference signal may be a fixed voltage derived by Zener diode from the vehicle battery or may be a varying value derived from an accelerometer attached to the vehicle body. Means is described Fig.10 (not shown) which de-energizes the automatic system and operates a lamp if a fault occurs. The invention is stated to be applicable to the detection and control, by reducing the drive, of wheel slip in rail vehicles during acceleration.
Patent GB-885413-A (GB)
Title: Improvements in or relating to cutter chains
Inventor: FIELDING FRANK RICHARD
IPC: E21C25/36
Filed: 1959-04-02
Abstract: 885,413. Coal-cutter chains. BRITISH JEFFREY-DIAMOND Ltd. Dec. 24. 1959 [April 2, 1959], No. 11210/59. Class 24. A coal cutter chain has links 2, 3 connected by a pin 5 having an eccentric head 7. The latter is received in a recess 8 of the link 2. The pin 5 has a bore closed by a rivet 9, the head 9a of which abuts in a recess 10 of the link 2. The recesses 8. 10 may be formed so that the pin 5 can be fitted in from either direction. The rivet 9 is counterbored at 9b and riveted into a counterbore in the pin 5.
Patent GB-602300-A (GB)
Title: Improvements in grinding, crushing and pulverising machinery
IPC: B02C18/16
Filed: 1946-04-12
Abstract: 602,300. Grinding-mills. CLARK, G., and CLARK, W. April 12, 1946, No. 11241. [Class 59] A grinding-mill has a rotor and stator fitted with cutting blades, the stator blades being adjusted radially by means of differentially threaded bolts. The stator 1 has slots 4 for the reception of blades 5 carrying cutters 6, the blades being secured to the stator frame by means of differentially threaded bolts 10 having outer parts 11 more finely threaded than the inner parts 12. The blades and the stator are threaded to receive the respective portions 11, 12, of the bolt 10, adjustment of the bolt thus causing adjustment of the blades relative to the stator. Springs 15 held in cups 14 in the blades take up the slack between the blades and the stator. In order to prevent easy access of ground material to the space between the blades and the stator frame, the blades and stator are provided respectively with slots 17 and a circumferential flange 18, or alternatively a rubber or similar elastic packing may be provided between these parts. Specifications 441,650 and 570,709 are referred to.
Patent GB-406503-A (GB)
Title: Suction-and by-pass-chamber for fuel injection pumps
IPC: F02M55/04
Filed: 1933-04-18
Abstract: 406,503. Fuel-injection pumps. LOUISODER, H., 19, Possenhofenerstrasse, Starnberg, and FISCHLMAYR, H., 23, Ruffini- Allee, Grõfelfing, both near Munich, Germany. April 18, 1933, No. 11244. [Class 102 (i).] In a fuel-injection pump in which regulation is effected by means of bye-pass valves 4, Fig. 6, which discharge into the suction chamber 6, disturbance of the suction is avoided by arranging the bye-pass valves to discharge into a separate chamber 7, which communicates with the chamber 6 by means of small openings 12. The chambers 6, 7 are formed by a partition 5 in a cover 2 and the openings 12 may be formed by a gap or notches between the partition 5 and the cylinder block 1, or alternatively, or in addition, by perforations 12. The latter may be formed at the upper end of the partition to permit the escape of air, or an air escape hole closed by a screw may be provided. Removable nozzles 13, Fig. 9, may be provided to permit alteration of the size of the discharge openings for the bye-pass fuel. In a multi-cylinder pump all the bye-pass valves may discharge into a passage 15, which discharges to the chamber 7 by means of one or more nozzles 13.
Patent GB-550881-A (GB)
Title: Improvements in electricity meters
IPC: G01R11/36
Filed: 1941-09-05
Abstract: 550,881. Supply meters. BRITISH INSULATED CABLES, Ltd., and ECKERSLEY, P. Sept. 5, 1941, No. 11376. [Class 37] Light load adjustment in an induction motor meter is provided by a pair of similar coils each fixed on a branch of the magnetic core carry. ing part of the flux of the potential coil the circuit of these coils being closed through ar adjustable impedance. In the construction shown two similar coils 16, 17 are arranged on the branches 14, 15 of the core that connect the potential magnet 2 and the current magnet 7, 8. The circuit of the coils 16, 17 is closed through a non-inductive resistance 18 and a wire or strip 19 mounted on an insulating support which carries a slider 20. With the slider in the central position the circuits of the two coils have equal impedance. Movement of the slider 20 from this position increases the impedance of one coil and decreases that of the other, causing a low load torque on the disc 1 in a direction dependent on the direction of displacement of the slider. The coils 16, 17 may alternatively be placed on the branches 4, 5 of the potential magnet, or the central limb 2 may be split into two or more branches and a low load adjustment coil disposed on one or two of these branches.
Patent GB-296333-A (GB)
Title: Processes for the treatment of plant materials in the preparation of fibres
IPC: D01C1/02
Filed: 1927-04-29
Abstract: 296,333. Abbey Syndicate, Ltd., and Nanji, D. R. April 29, 1927. Retting. - In obtaining fibres from fibrous tissues such as flax, hemp, sisal, ramie, and bamboo, the materials are subjected to the action of a 0.1-0.5 per cent solution of a neutral salt of one of the alkali metals or of ammonium. Neutral tartrates, citrates, oxalates, sulphates, and phosphates, which precipitate the alkaline earth metals with which the pectinous substances are associated, are preferred. As applied to ramie ribbons which should be comparatively fresh, the ionic exchange treatment may be effected with a 0.1-0.5 per cent ammonium sulphate solution at 1-2 atmospheres pressure for 60-20 minutes, and, after the removal of the pectinous complexes, the material is heated in an autoclave with a suitable alkaline solution, such as a 2-4 per cent caustic soda solution under a pressure of 6-10 atmospheres for 20-60 minutes in order to remove fats, waxes, cutaneous substances and resins impregnating or adhering to the fibres. The chlorophyll remaining is removed by bleaching and there is thus obtained a product consisting of the ultimate fibres. The alkali treatment may be repeated for a shorter period after bleaching and a strong lustrous product is obtained comparable in appearance with artificial silk but much stronger. Bamboo may be depectinized and then submitted to alkali treatment for a shorter period than ramie, and if while still moist, the softened outer layer or skin is removed, a product is obtained of great length and strength, suitable as a substitute for hemp, jute and the like in rope and sack manufacture. The fibre may be bleached, but this may occasion mechanical weakening. In treating flax straw, the material is boiled in a 0.1-0.5 per cent solution of ammonium sulphate at a pressure of 1-2 atmospheres for 60-20 minutes. The insoluble pectose is converted into soluble pectin. The straw is expressed, washed and dried, and then scutched &c. as is usual. The reagent may be used repeatedly until its colour is so dark that staining of the fibre begins after which it may be used for manure.
Patent GB-1469214-A (GB)
Title: Bottom handling apparatus for steel converter vessels
IPC: C21C5/48
Filed: 1975-03-19
Abstract: 1469214 Metallurgical vessels PENNSYLVANIA ENG CORP and AVRR 19 March 1975 [21 March 1974] 11452/75 Heading F4B The bottom 13, Fig. 1, of a metallurgical vessel 10 is removed and replaced by apparatus comprising a support table 30 which is raised and lowered by lift cylinders 26 and which carries a tiltable and rotatable tilt table 32 having upstanding lugs 215 adapted to engage between pairs of lugs 216 on the vessel bottom. The apparatus is mounted on a frame 20 carried by a vehicle, e.g. a ladle car. Frame 20 carries a support plate 25, Fig. 3, upon which are mounted the four lift cylinders 26 whose shafts 110 support the table 30. The plate 25 also has a guide for a square section column 120 which is fixed to the table 30 and prevents tilting or sideways displacement. The plate 25 can be moved in a horizontal plane by cylinders 35, 36, the plate sliding on beams 66, 67 and freedom to move being provided by enlarged holes surrounding the hold down bolts 68, the holes being covered by washers 72. The tilt table 32 is mounted by a ball-and-socket or support table 30 and its angle is controlled by four cylinders 37 carried on levers 166 supported on rollers (Fig. 9, not shown) running on the top plate 126 of the support table 30. Two further cylinders 38 (Fig. 8, not shown), acting tangentially serve to rotate the tilt table through a small angle to position the lugs 215 in register with the spaces between lugs 216 on the vessel bottom. Keys 218, are then inserted and the bottom fastenings disconnected. The bottom can then be pulled off and replaced. In another form the bottom is connected to the body of the vessel by a series of hydraulic jacks (Fig. 12, not shown), which are extended to separate the bottom from the body of the vessel.
Patent GB-494303-A (GB)
Title: Improvements in hydraulic power transmitting devices
IPC: F16H61/56
Filed: 1937-04-21
Abstract: 494,303. Hydraulic power transmitters. LAVAUD, D. S. DE. April 21, 1937, No. 11458. Convention date, Dec. 19, 1936. [Class 69 (ii)] In a torque-converter of the F÷ttinger type, each of the turbine blades 43 has a pin 50 engaging a radial slot 51 in the turbine shell 8 ; each blade is also pivotally connected at 44 to rings 45, 46 movable relative to said shell and urged in one direction by springs 47. Curved slots 52a in the ring 45 accommodate the pins 50. At starting, the liquid thrust on the turbine blades is sufficient to turn the blades, against the restraint of the springs, into the position 43a; as the speed of the turbine increases, the liquid circulation, and therefore thrust on the blades decreases, and the blades tend to turn into the position 43b, this being aided by centrifugal force on the blades themselves. A friction clutch is provided for affording a " direct drive " ; clutching is effected by means of a centrifugal mass 69 rotating with the turbine, this mass being operative only when released by a member 71, release being effected by turning of the turbine blades to a suitable angle.
Patent GB-257970-A (GB)
Title: Improvements in or relating to railway and other vehicles
IPC: B60F1/04
Filed: 1925-05-04
Abstract: 257,970. Ridley, M. N. May 4, 1925. Draw-gear.-In a railway or other vehicle provided with two central transversely-disposed wheels, a draw-bar 55 is provided for use when the vehicle is coupled in a train. The draw-bar is pinned in a socket 56 pivoted on the vehicle at a point which is central in relation to an arcshaped channel 58 which forms a guide for the end of the draw-bar. When the draw-bar is not in use, it is pushed through a hole in the guide into the position 60. The draw-bar may be used with mono-rail vehicles having a stability wheel as described in Specification 215,031, [Class 103 (vi), Railway &c. vehicles, Undercarriage &c. details of], arranged as shown in dotted lines at 63, Fig. 7, or having a wheel of any other type.
Patent GB-1354298-A (GB)
Title: Method and mixture for the treatment of wood
IPC: B27K3/50
Filed: 1971-04-27
Abstract: 1354298 Preserving wood with creosote/ polymer mixtures PRBD DE BRUIN 27 April 1971 [27 April 1970 21 Dec 1970] 11535/71 Heading A5E [Also in Divisions C3 and Dl] Wood is impregnated with a creosote and a liquid preparation of monomeric or polymeric methylmethacrylate. The liquid preparation preferably comprises a solution of polymethylmethacrylate in acetone and may also contain pentachlorophenol or copper naphthenate. Preferably the liquid preparation is applied in admixture with the creosote. The wood may be impregnated by a pressure process, an open-tank (thermal) process, or by coating the surface of the wood with the mixture and permitting it to penetrate. The wood may be coated after impregnation with a bituminous or tar substance which may contain pentachlorophenol or copper naphthenate. This coating may be covered with a ¢" cementicious layer which may be reinforced. Alternatively the coating may be covered by an asbestos casement filled with hot bitumen or tar. The creosote may be high temperature creosote, low temperature creosote, medium temperature creosote or may form part of a creosote solution or a creosote-containing wood preservative. The preservative may also contain a mineral oil. The mixture is preferably an emulsion. Timber members already in service may be pre-treated to arrest weathering, by spraying, brushing or injecting a solution of copper naphthenate, pentachlorophenol, pentachlorophenol-zinc naphthenate, tetrachloronaphthalene-pentachlorophenol or tributyl tin oxide. The process improves the hardness and water-repellancy of the wood, in addition to its resistance to weathering and infestation. Seven days after treatment the wood can be painted with an acrylic base paint.