baber/WOPTO huggingface dataset:
Patent GB-746438-A (GB)
Title: Apparatus for continuously testing the magnetic components of a traveling bed of material
IPC: G01R33/12
Filed: 1954-04-22
Abstract: 746,438. Electric tests. UNITED STATES STEEL CORPORATION. April 22, 1954 [Sept. 2, 1953], No. 11718/54. Class 37. Apparatus for determining the quantity of magnetic material on a conveyer belt comprises a fourcoil assembly located near to the conveyer surface, the coils being arranged in a bridge circuit so that the quantity of magnetic material is indicated by the magnitude of the bridge unbalance current. The four coils 32, 34, 36, 38 (Figs. 2, 3) are assembled on supports 28, 30 fastened to two insulating discs 26 attached to a hollow steel shaft 6, and surrounded by an insulating drum 18 covered with rubber 22, and mounted on bearings 20. The drum rests on the surface of the material carried by the con. veyer belt with the coils 36, 38 close to the test material. Initial balance between the coil system is obtained by a soft iron sheet 42 and an aluminium sheet 44 on brass rods 40. The coils are connected as a bridge and fed from an oscillator 58 (Fig. 5) at 60- 65 kcs., the unbalance current being fed through tuned amplifier 78 where the second harmonic is rejected, rectifier circuit 84 where transients are by-passed by R.C. arrangement 92, and amplifier 94 to meters 112, 114.
Patent GB-720143-A (GB)
Title: Improvements relating to lifting jacks
Inventor: WILLETTS CYRIL MALCOLM
IPC: B66F1/00
Filed: 1952-05-09
Abstract: 720,143. Ratchet lifting jacks. WILLETTS, Jun., Ltd., C. May 6, 1953 [May 9, 1952], No. 11727/52. Class 78 (3). In a ratchet jack the driving and holding pawls 16, 17 are connected by a link in the form of a rod 24 having abutments 31, 25, 34, slides 27, 29 pivoted to the pawls at 30, 28 and compression springs 33, 32 which respectively urge slide 29 against adjustable abutment 34 and slide 27 against abutment 25, a linkage work 35, 37 connected to a peg 26 on abutment 25, being provided to move the rod 24 endwise to produce selective stressing of the springs. In the position shown oscillation of handle 18 about pivot 19 lowers the rack 14, but on rotating lever 35 anti-clockwise about pivot 36 the springs 32, 33 are compressed and subsequent oscillation of handle 18 raises the rack 14.
Patent GB-1113196-A (GB)
Title: Tilt switch system for controlling the prime mover of a vehicle
IPC: H01H29/20
Filed: 1966-03-17
Abstract: 1,113,196. Gravity and inertia switches. T. F. GRIFFETH. 17 March, 1966, No. 11744/66. Heading H1N. [Also in Division F1] A device for stopping the engine of a vehicle (see Division F1) upon excessive tilt or cornering speed comprises four tubular mercury (or the like) switches mounted in pairs such that the switches of each pair are oppositely inclined with respect to the horizontal and the two pairs are arranged at 90 degrees, rotatable means being provided for varying the sensitivity of the device by adjusting the relative inclinations of the switches. In one embodiment (Figs. 5 to 8, not shown) the switches (94) are mounted on telescopic bases (96) each pivotally attached at one end to a bracket (85) in a housing (62) and pivoted to a common central member (70) to form a cruciform arrangement. The central member (70) is threaded on to a screwed shaft (64) which can be rotated to raise or lower the member, (70) and hence simultaneously adjust the inclination of all four of the switches (94). In another embodiment (Fig. 9, not shown) each pair of switches are separately adjustable by rotation of a bevel pinion (114) to rotate two mating bevel gears (112) in opposite directions, the switches (106) being respectively carried on the bevel gears (112).
Patent GB-442190-A (GB)
Title: Process for the manufacture of new heterocyclic compounds
IPC: C09B29/42
Filed: 1935-04-17
Abstract: Bactericidal azo dyestuffs are manufactured by coupling diazotized arylamines or their substitution products with 3 : 5-diaminopyridine or its homologues or substitution products, e.g. its halogen, hydroxy, alkoxy or alkyl derivatives.  In examples, aniline is diazotized and coupled with: (1) 3 : 5-diaminopyridine; (2) 2 - hydroxy - 3 : 5 - diaminopyridine (obtained by reduction of 2-hydroxy-3 : 5-dinitropyridine).  Samples have been furnished under Sect. 2 (5) of the following dyestuffs: (A) p-chloraniline --> 3 : 5-diaminopyridine; (B) p-anisidine --> 3 : 5-diaminopyridine; (C) b -naphthylamine --> 3 : 5-diaminopyridine; (D) sulphanilic acid --> 3 : 5-diaminopyridine; (E) anthranilic acid --> 3 : 5-diaminopyridine. Specification 341,598 is referred to.
Patent GB-458401-A (GB)
Title: Improvements in or relating to television cathode ray tubes
IPC: H01J29/62
Filed: 1935-04-18
Abstract: 458,401. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. April 18, 1935, No. 11941. Convention date, April 20, 1934. Addition to 457,846. [Class 39 (i)] In television tubes filled with gas or vapour at less than 5À10<-5> mm. pressure and with an electrostatic lens 6, 9 as described in the parent Specification for reproducing on the screen 13 an image of an object such as a diaphragm aperture 5, the size of the aperture 5 and the scale of reproduction are such that the image point at the screen 13 would be larger, at maximum ray intensity and in a high vacuum, than H/n, where H and n are the height of the picture on the screen 13 and the number of lines in the picture respectively, and the gas pressure is chosen so that gas concentration does not occur for low ray intensities but reduces the image point to height H/n for large ray intensities. The aperture 5 and the modulating electrode 3 are such that the size of the image point on the screen 13 increases with the ray intensity due to increases in the effective emissive area of the cathode and so in the area of the aperture 5 filled by the electron stream ; when a certain ray intensity is reached, preferably more than medium intensity, gas focusing commences and presents increases of the image point beyond the height H/n. The distance 9-13 may thus be large compared with the length of the tube 6 so that small angular deflections of the ray by the plates 11, 11<1>, 12, 121 are sufficient. These plates need not be operated in reverse phase and one plate of each pair may be maintained at a fixed potential. The plates of each pair are separated only sufficiently to allow the maximum required deflection and the pairs may be spaced apart a distance greater than twice the shortest mutual spacing of the pair 12, 12<1>. The gasfilling produces only a slight ion-cross defect which may be avoided by 3-plate systems as described in Specification 432,209. The wall of the tube around the anode 9 and the deflecting plates is furnished with an earthed coating. The electrodes may be constructed and arranged as described in Specifications 455,084 and 457,757. Voltages and dimensions of the electrodes are specified.
Patent GB-1563942-A (GB)
Title: Corner forming element
IPC: F16B12/04
Filed: 1977-03-22
Abstract: To produce rounded or rounded and mitred edges of walls for an outer surface of a housing produced by the folding construction method, panels (13, 14), which are separated by a joint (22) and are rounded and mitred at the separation edges, are connected to a glued-on film (6) and folded in such a way that the panel edges rest against one another. To achieve a completely smooth edge, any bonding agent is avoided in the region of the rounding or mitring. This is done by covering the relevant places when the layer of adhesive (9) is applied or by producing a step, in which case the layer of adhesive (9) is applied by means of a roller. <IMAGE>
Patent GB-1185972-A (GB)
Title: Improvements in or relating to control apparatus
IPC: F23N5/08
Filed: 1968-03-12
Abstract: 1,185,972. Photo-electric burner control. HONEYWELL Inc. March 12, 1968 [March 15, 1967], No. 12022/68. Heading G1A. [Also in Division F4] A burner control system includes Geiger tubes 21, 22 acting as flame sensing devices coupled into opposite sides a-b-c, a-d-c of a bridge circuit of which the other arms include the coils A, B of relay having contracts A1, B1 and responsive to the state of the Geiger tubes a third relay coil C being connected between points b, d to detect difference in state between the tubes 21, 22 by becoming energized when the bridge is unbalanced and thus indicating malfunction through a circuit 14 by closing contacts C2, C3 while the supply of electrical energy to the burner installation is discontinued by the opening of contacts C1, C3. The presence of flame with both tubes functioning normally causes the burner installation to be energized through terminals 11, 12. A modification Fig. 2 includes two silicon controlled rectifiers 23, 24 connected in parallel and two impedances in the form of resistors 25, 26 develop voltage signals supplied to the gates of the rectifiers to cause them to conduct or not according to the response of the tubes 21, 22. In a further modification Fig. 3 (not shown) a single silicon controlled rectifier is included in the supply circuit and has its gate coupled to point d of the bridge.
Patent GB-1130453-A (GB)
Title: Method and apparatus for regulating and controlling the heating value of liquefied methane containing gas
IPC: F25J1/00
Filed: 1966-03-18
Abstract: 1,130,453. Reforming methane-containing gas. PHILLIPS PETROLEUM CO. 18 March, 1966 [19 March, 1965], No. 12026/66. Heading C5E. The heating value of a liquefied methanecontaining gas, e.g. liquefied natural gas, is reduced by the following process:-the liquefied gas is vaporized at (1) by indirect heat-exchange with air which is partially liquefied and separated into two streams, respectively O 2 - and N 2 - rich; the O 2 -rich stream and a portion of the vaporized gas are passed to a zone (11) for partial combustion to produce a gas rich in H 2  and CO; this gas is mixed with some at least of the rest of the vaporized gas and a predetermined quantity of air, at (19). The ratio of the quantities of vaporized gas and O 2 -rich stream delivered to zone (11) is automatically controlled by a device (17) and the ratio of the quantities of air and vaporized gas passed to the mixing zone (19) is automatically controlled in accordance with the density and C.V. of the final gas measured at (24, 27). The zone (11) includes a nickel catalyst. A specific example is described and a flow diagram is provided.
Patent GB-569096-A (GB)
Title: Production of chlorobutadienes
IPC: C07C21/20
Filed: 1941-09-19
Abstract: Chlorbutadienes are produced by chlorinating butane and removing hydrochloric acid from the chlorbutanes by pyrolysis. The chlorination of the butane is preferably effected so that the product contains 56-66 per cent of chlorine.  In examples: (1) chlorine is led through a small orifice into butane so as to cause turbulence, while irradiating with a tungsten filament lamp; (2) chlorine is passed into butane at -25 DEG  C., while irradiating as before; (3) a mixture of chlorine and butane is passed through a tube at 270 DEG C.  In each case the products are pyrolyzed and the products fractionated.  Chloroprene and 4-chlor-butadiene-1-3 are obtained. The chlorination of the butane may be effected by the use of active carbon, butylene or sulphur dioxide as catalysts, and the chlorine may be added in instalments.  Specifications 569,097 and 569,098 are referred to.
Patent GB-623613-A (GB)
Title: Improvements in and relating to chairs for babies
IPC: A47D1/10
Filed: 1947-05-06
Abstract: 623,613. Seats. BOWLES, H. C. May 6, 1947, No. 12181. [Class 52 (ii] A child's chair adapted to be hooked on to the back of a motor car seat or other support comprises a rectangular frame f to which a flexible seat c is secured. Pivoted to the rear end of the frame f at each side is a bracket g to which the suspension hooked arms a are pivoted in such a manner that they may rotate about their axes. To the lower ends of these brackets g are pivoted stays h hinged to each other at e and at their remote end to the front part of the frame f. An adjustable prop b is fitted as shown to give additional support to the seat, the lower end of the prop being adapted to rest on the motor car seat or other support.
Patent GB-1535804-A (GB)
Title: Fabric bleaching composition
IPC: C11D7/56
Filed: 1976-03-26
Abstract: 1535804 Bleaching composition PROCTER & GAMBLE CO 26 March 1976 [27 March 1975 (4)] 12234/76 Heading D1P Thickened peroxygen bleaching compositions having a viscosity of from 200-100,000 centipoises and articles comprise a particulate organic, substantially water-insoluble peroxygen compound, a thickening agent, a liquid carrier, preferably an acidifying agent to maintain the pH of the composition in the acidic range, and optionally a metal chelating agent to maintain the composition free of heavy metal cations. The peroxygen compound is preferably a diperoxy acid e.g. diperazelaic acid, diperbrassylic acid, dipersebacic acid or diperisophthalic acid, though monoperoxy acids and peroxides are mentioned. The thickening agent may be organic or inorganic and may be a starch or modified starch, a cellulose derivative, a synthetic polymer e.g. polyacrylamide or a carboxylated vinyl polymer, a proteinaceous material, a water-soluble gum, a colloidal or pyrogenic silica, a synthetic Laponite (R.T.M.) or smectite clay, the latter also having the property of conferring softening and antistatic benefits. The acidifying agent preferably maintains the composition pH in the range 4-6 and may be sodium or potassium dihydrogen phosphate, hydrochloric or sulphuric acid or acetic, tartaric acid or citric acid. The liquid carrier is preferably water. The chelating agent is preferably EDTA or nitrilotriacetic acid. The composition may further contain a perfume material. The articles comprise the composition in releasable combination with a dispensing means e.g. a pouch of flexible perforated or perforatable plastics sheet, which may be comingled with e.g. damp fabric in a tumbler dryer or may be added directly to a laundry bath.
Patent GB-417954-A (GB)
Title: Improvements relating to step ladders
IPC: E06C1/16
Filed: 1933-04-27
Abstract: 417,954. Ladders. PROCTER, T., 49, Lynthorpe Road, Blackburn. April 27, 1933, No. 12254. [Class 20 (ii).] A step-ladder in which stop means are provided at the upper end to limit the opening, has the step portion A disposed within the rear portion B, and projecting portions C of the top step act as stops to the rear or stop portion. The parts of the ladder hinge on a through bolt E, and extensions F are provided to the rear strut portions to serve as handholds.
Patent GB-1489489-A (GB)
Title: Functional fluid compositions containing stabilizers
IPC: C10N30/10
Filed: 1975-03-24
Abstract: 1489489 Preparation of methyl-3,4-epoxycyclohexane MONSANTO CO 24 March 1975 [25 March 1974] 12264/75 Heading C2C [Also in Division C5] Methyl - 3,4 - epoxycyclohexane, which may be used as an acid scavenger in hydraulic fluid compositions (see Division C5) is prepared by reaction of 4-methylcyclohexene of Formula II in ethereal solution with metachloroperbenzoic acid in methyl ether solution. The reaction temperature was maintained at 20-26 C. by means of an ice bath. The reaction mixture is washed and dried and the product extracted.
Patent GB-859263-A (GB)
Title: Improvements in the treatment of sulphidic molybdenum-containing materials
IPC: C01G39/00
Filed: 1959-04-10
Abstract: Sulphidic materials containing molybdenum together with copper, bismuth and/or lead, are reacted in the dry state with gaseous chlorine at a temperature up to 300 DEG C., whereby the molybdenum content is not attacked by the chlorine while the copper, bismuth and/or lead are converted to water-soluble chlorides and are removed by leaching with aqueous liquid.  Iron may also be present and is partially removed in the process.  The temperature may be 150 DEG  to 250 DEG C.  The chlorine may be mixed with a diluent gas such as nitrogen; preferably oxygen is excluded.  The process may be carried out in a rotary furnace, multiple hearth furnace, or in a fluidized bed furnace.  In examples sulphidic molybdenum ore concentrates containing molybdenum, copper and iron, and molybdenum, copper, bismuth and lead, are treated with chlorine and leached with water.
Patent GB-538581-A (GB)
Title: Improvements in or relating to the manufacture of wetting agents
IPC: C09K23/00
Filed: 1940-07-29
Abstract: 538,581. Foaming agents ; acids from waste sulphate lye. EDWARDS, K. B. July 29, 1940, No. 12303. [Classes 2 (iii) and 15 (ii)] Waste aqueous liquor obtained in the sulphate process of making paper after separation of tallol soap is treated so as to obtain a product having wetting and foaming properties by adding a mineral acid or acid salt to the clarified liquor and. separating the resulting precipitate. In an example, waste sulphate lye separated from tallol soap is filtered and treated with sulphuric acid. After boiling, the precipitate is easily filtered and dried. The product may be freed from fatty and resin acids by extraction with volatile solvents such as ether and petroleum distillates.
Patent GB-979089-A (GB)
Title: A block-bottom valve bag of thermoplastic material having bottom inserts
IPC: B65D30/24
Filed: 1963-03-28
Abstract: 979,089. Thermoplastic valve bag. A. WINDMOLLER, and M. GENNERICH. March 28, 1963 [March 31, 1962], No. 12390/63. Heading B5D. [Also in Division B8] Inserts 18, 19 placed on the open ends of a cross-bottom thermoplastic valve bag may be heated prior to insertion and merely pressed into position to provide welded seams. The side flaps are subsequently infolded and welded together. An insulating layer corresponding to the width of the overlap may be previously glued between the insert and lowermost infolded side flap. A further cover sheet of paper, plastics or cellulose may be glued or welded to the bag bottom or else a layer of plastics may be extruded thereover.
Patent GB-122137-A (GB)
Title: Improvements in or relating to Machines for Building Pneumatic Tire Casings.
Inventor: HOPKINSON ERNEST
IPC: B29D30/32
Filed: 1918-07-30
Abstract: 122,137. Hopkinson, E. July 30, 1918. Moulding pipes and tubes.-An expansible core, on which a tyre cover is built up in the form of a flat band, comprises segments 33 having lugs 34 pivoted to plates 37 adjustable radially, with respect to the shaft 7, along a slotted disk 36 secured to the shaft. For effecting this adjustment, the plates are connected by links 41 to a disk 40 formed with a segmental rack adapted to be turned by a pinion 44 on a hand-lever 45. A spring- catch 46 on an extension of the lever is arranged to engage one of a series of depressions 47 in a plate secured to the disk 36.
Patent GB-834523-A (GB)
Title: Process for the preparation of fibre- or film-forming systems
IPC: C08F20/44
Filed: 1957-04-16
Abstract: Graft copolymer-containing film- or fibre-forming compositions are made by dissolving in a solvent consisting of dimethyl sulphoxide, ethylene carbonate or butyrolactone, acrylonitrile alone or in admixture with another monoethylenically unsaturated monomer soluble in the solvent and a polymeric material, having a desired functional utility, which is soluble in the solution of the monomeric material in the solvent, and then polymerizing the dissolved monomeric material.  Specified monomeric materials which may be used with the acrylonitrile are allyl alcohol, vinyl acetate, vinyl acetic acid, acrylic acid, itaconic acid, methyl and ethyl acrylates, methacrylonitrile, dimethylaminoethyl acrylate, acrylamide, fumaronitrile, 2-vinyl-5-ethyl pyridine and vinyl and allyl sulphonic acids and their alkali metal salts. Polymeric materials specified are the homopolymer and copolymers of vinyl pyrrolidone and polymers and copolymers of monomers such as acrylonitrile, vinyl caprolactam and piperidone, vinyl pyridine, vinyl acetate, ethylene oxide, vinyl benzene sulphonic acid and its salts, vinylbenzyl-trimethylammonium chloride, vinyl methyl ether, N-acryloyl taurine and its salts, acrylamide, aminoethyl methacrylate hydrochloride, alpha-sulphoethylacrylate, X-sulphopropylacrylate, maleic anhydride and vinyl sulphonic acid and polyvinyl alcohol.  The polymeric material may be chosen to impart various properties to the products of the process, e.g. dyeability, antistatic and hydrophilic properties &c. Polymerization may be accelerated by the use of actinic light and catalysts such as azobisisobutyronitrile, ammonium and potassium persulphates and organic peroxides.  Specification 834,524 is referred to.
Patent GB-1136234-A (GB)
Title: Improvements in or relating to electrical switch assemblies for use with liquid containers
Inventor: MORGAN-RICHARDS JOHN BLANEY
IPC: H01H36/02
Filed: 1965-03-24
Abstract: 1,136,234. Magnetic switches. CRAWLEY ENG. DEVELOPMENTS Ltd. 11 March, 1966 [24 March, 1965], No. 12472/65. Heading H1N. A sealed magnetic contact unit 20 operated by movement of a permanent magnet 29 on a pivoted float arm 27 is mounted in a non- magnetic probe 16 which also encloses a thermostatic or other condition responsive switch 19. The switch 19 may be in series with the contact unit 20 and mounted so that the unit 20 is operated when the switch 19 is still below the level of liquid which moves the float. The contacts of the unit are biased to the closed position by a permanent magnet 24 held on the unit 20 by a shrunk-on plastics sleeve 25.
Patent GB-145226-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M9/127
Filed: 1919-05-17
Abstract: 145,226. Austin, F. W. May 17, 1919. Spray carburettors.-The passage through a spray carburettor is produced by two parts N, N1, having undulating surfaces, the part N1 being fixed and the part N movable by a knob sliding in a slot L in the casing. The fuel orifice P is located in the first crest O1 of the fixed undulation, and the Figure shows the apparatus with the air passage closed. By moving the part N to the left, the air passage is opened and a serpentine path for the mixture is obtained. The casing containing the parts N, N1 may be of circular or square cross-section, and the movable part may bo suitably guided either by the knob referred to above or by ridges on the movable part engaging ridges on the fixed part. The movable part may be actuated by a rack and pinion.
Patent GB-507194-A (GB)
Title: Improvements relating to latches for fanlights, hopper windows and other pivoted panels
IPC: E05C1/14
Filed: 1938-04-27
Abstract: 507,194. Latches. COPPLE, H. P. April 27, 1938, No. 12535. [Class 44] A sliding spring latch A for fanlights or hopper windows is retracted by a vertical, horizontal, or oblique pull on a lever E having both a pivotal and sliding engagement with a guide pin b<1>. The bolt A has a recess a engaged by an arm e<1> on lever E which has a bearing slot e, movement of lever E in one direction being limited by an abutment e3.