baber/WOPTO huggingface dataset:
Patent GB-522819-A (GB)
Title: Improvements in display devices
IPC: G09F11/23
Filed: 1938-12-17
Abstract: 522,819. Optical and like toys. COX, W. J. Dec .17, 1938, No. 36839. Convention date, Feb. 5. [Class 132 (iii)] [Also in Group XVIII] Display devices of the kind comprising rotating twisted strips of material which appear to have a continuous progressive motion are adapted to have the strip arranged curvilinearly by threading it over a correspondingly shaped wire. The figure shows a stationary wire 11 formed into a circle and attached by screws 13 to a base 14. The twisted strip 10, which may be in one or in several pieces, has axial holes which take over the wire 11, and is rotated by a pulley or gear wheel 15 fixed to the strip. The strip may be bright, corrugated and coloured.
Patent GB-1162522-A (GB)
Title: Improvements in and relating to a Method of and Apparatus for Producing Clips for Springs.
IPC: B21D53/00
Filed: 1966-08-17
Abstract: 1,162,522. Spring upholstery. JAMES M. SIBTHORP Ltd. and J. SIBTHORP. 23 Aug., 1966 [17 Aug., 1966], No. 36839/66. Heading A4M. [Also in Divisions B3, E2 and F2] A metal clip for retaining the end of a spring comprises a V-shaped metal plate with a plastics liner 4a which fits into the bend of the clip. Holes are punched in the clip the edges of which hold the liner restrained resiliently in the clip. The liner extends beyond the edges of the clip and the clip is notched at each side at the bend.
Patent GB-1442024-A (GB)
Title: Method of preparing polyisocyanates which are blocked with dialky malonates
IPC: C07C275/62
Filed: 1974-08-22
Abstract: 1442024 Polyurethanes from blocked biuret polyisocyanates BAYER AG 22 Aug 1974 [23 Aug 1973] 36919/74 Heading C3R [Also in Division C2] Polyurethane resins are obtained from polyols and aliphatic, cycloaliphatic or araliphatic biuret polyisocyanates which have an -NCO functionality of more than 2 and which are blocked with diallyl malonates and which are obtained by reacting the corresponding buiret polyisocyanates with malonic acid dialkyl esters, at 20‹ to 120‹ C., the reaction being carried out in a solvent which contains ester groups, and the reaction mixture always containing excess of the dialkyl malonate.
Patent GB-1187285-A (GB)
Title: Improvements in or relating to Stereophonic Reproduction
Inventor: KIRKMAN DENNYS
IPC: H04S1/00
Filed: 1967-08-11
Abstract: 1,187,285. Stereophonic circuits. KIRKMAN (CRAWLEY) Ltd. 5 Aug., 1968 [11 Aug., 1967], No. 37018/67. Heading H4R. To enhance stereophonic listening using headphones a circuit is provided having two identical parts each with an input A or B and an output C or D. A low-pass filter network L 1 C 1 L 2 C 2  or L 3 C 3 L 4 C 4  having a delay of less than 1 millisecond is provided between the input and output of each part together with an integrating network R 2 R 4 C 2  or R 10 R 14 C 4 . The input of each part is connected to the output of the other part through an attenuator R 5  or R 6 . The direct signal applied to each headphone at C or D is at approximately the same amplitude as the delayed signal applied to the opposite headphone. The low-pass filters have a cut-off frequency not less than 600 Hz., preferably 1200 Hz. Components may be chosen for non- linear frequency response of the headphones or the input signals. In an alternative arrangement each integrating circuit consists of a series inductance and shunt resistance (not shown).
Patent GB-1272963-A (GB)
Title: Flare stack combustion tips
IPC: F23G7/08
Filed: 1969-07-23
Abstract: 1,272,963. Flare stack burners. SMOKEBAN MFG. Inc. 23 July, 1969 [25 July, 1968], No. 37019/69. Heading F4T. A flare stack burner comprises a centrally disposed gas conduit 11 open at the lower end for communication with a flare stack 10, the upper end being at least partially closed; and a plurality of ciroumferentially spaced apart gas conducting channels 14 extending radially outward from and in communication with the conduit 11  and each having in an upper segment thereof an orifice 16 extending the entire length of the segment. Each of the orifices 16 is partially restricted by a lip 21 attached to one wall thereof. A shroud 42 coaxial with the conduit 11  may be attached to each of the channels 14 by members 44 which are V-shaped in vertical cross-section each having the apex of the V below the upper edge of each channel which aid flame maintenance at low gas flow rates. A pressure control plate 27 rotatably responsive to gas pressure is attached to a wall 18 of each channel 14 to restrict the gas flow therethrough. The conduit 11 has at its 1 wer end a damper 22 comprising a plurality of sector shaped gates 23 rotatably mounted on headers 24 so as to be responsive to gas pressure. The conduit 11 may terminate at its upper end in a valve ring (36), Fig. 4 (not shown), having a conical valve member (35) seated in spaced apart relation thus leaving an annular gap (37) and being vertically movable in response to gas pressure. To aid induction of air high pressure steam is distributed from steam nozzles 47. Alternatively the burner may be mounted on a flare stack including an annular air conduit.
Patent GB-1452028-A (GB)
Title: Cyclic amino phosphonic acids
IPC: C02F5/10
Filed: 1974-08-23
Abstract: 1452028 Calcium sequestration; calcium sulphate retarding agent HENKEL & CIE GmbH 23 Aug 1974 [27 Aug 1973] 37068/74 Headings C1C and C1H [Also in Division C2] Precipitation of compounds of polyvalent metals (e.g. Ca) in aqueous solutions is prevented by adding a complexing or substoichiometric ("threshold") amount of a sequestering agent of formula (n=1 to 4; R=H or C 1-6  alkyl) or a watersoluble salt thereof. The setting time of gypsum or stucco (optionally in admixture with lime, sand, perlite or cellulose) is retarded by incorporation of a compound of Formula I supra or a water-soluble salt thereof.
Patent GB-1081323-A (GB)
Title: Cross-linking vulcanisation of olefin polymers
IPC: C08K5/07
Filed: 1964-09-10
Abstract: An olefin polymer is cross-linked by heating with a halogenated cycloalkenyl ketone in which the cycloalkenyl group contains 6 carbon atoms and one keto group in the ring.  Optional ingredients are C, S, metal oxides, hydroxides, sulphides, salts of weak acids and MgSO4. In examples, ethylene/propylene rubber is cross-linked using 2,3,4,4,5,6-hexachloro-2,5-cyclohexadiene - 1 - one, decachlorobicyclohexadieneone, or 2,2,3,4,5,5,6,6-octachloro-3-cyclohexene-1-one.ALSO:Decachlorobicycloh exadienone is prepared by chlorination of dihydroxy-octachlorobiphenyl in aqueous suspension.  A Cl-containing cycloalkenic ketone is prepared by chlorination of 2,21-bis-(p-hydroxyphenyl) propane in glacial acetic acid.
Patent GB-1150662-A (GB)
Title: A Device for Laying Gravel in Trenches
Inventor: WILLIAMS GRIFFITH THOMAS
IPC: A01D90/10
Filed: 1965-08-31
Abstract: 1,150,662. Vehicle unloading conveyer; hopper. G. T. WILLIAMS and H. G. JONES. 31 Aug., 1966 [31 Aug., 1965], No. 37224/65. Headings B8E and B8S. A trailer for laying gravel or other material in a drainage trench comprises a hopper 4 discharging by gravity on to an endless conveyer 8 drivable in either direction for discharge through one of the shoots 17 pivoted at 18 for movement from an operative to an inoperative position. The conveyer may be driven from the power take-off of a tractor through a gear-box 10 controlled by a lever 16. The shoots may be raised and lowered manually or by power from the gear-box 10, lowering of the appropriate shoot occurring dependent on the direction of the conveyer drive. Two parallel conveyers may be provided each with a shoot to discharge simultaneously in both directions from a single or double hopper. The vehicle may be self propelled and may have tracks in place of wheels.
Patent GB-1506890-A (GB)
Title: Common antenna for primary and secondary radars having means for suppressing interrogation side-lobes
IPC: G01S13/87
Filed: 1975-09-10
Abstract: 1506890 Side-lobe suppression THOMSON-CSF 10 Sept 1975 [13 Sept 1974] 37317/75 Heading H4A An antenna system for a combined primary and secondary radar comprises a main reflector illuminated by the primary sources of both radars, and two auxiliary radiating elements mounted on the reflector superstructure for radiating respectively in the forward direction (i.e. in the direction of the main lobe of the secondary radar) and the rearward direction. The combined radiation pattern of the auxiliary elements together with a side-lobe suppression pattern obtained using the secondary radar source are such as to provide a pattern which is approximately omni-directional except for a notch in the forward direction, the latter pattern being used for side-lobe suppression in the secondary radar. In the Fig. I embodiment reflector 1 is fed by primary radar source 20 and double-dipole secondary radar source 21, 22. A sum signal of the dipoles 21, 22 is used for the secondary radar target-interrogation function, whereas a difference signal of the dipoles is used to establish the sidelobe-suppression pattern. A forwardly-radiating auxiliary element 28 is constructed as a strip-metal dipole 180 (Fig. 5b) on a double-winged reflector 181, or as two dipoles (30, 31, Fig. 3, not shown) used to form a difference signal. Rearwardlyradiating auxiliary element 25 is a dipole plus plane reflector, as shown in Fig. 5a. Couplers 26,27 combine the signals used for the side-lobe-suppression function.
Patent GB-886897-A (GB)
Title: Dynamic curing techniques
IPC: C08J3/24
Filed: 1960-11-01
Abstract: A process for curing polyethylene comprises blending polyethylene with a peroxide curing agent and heating the blend to curing temperature under conditions of continuous mixing until curing is effected.  The polyethylene may be a linear high density polyethylene.  Specified peroxides are dicumyl peroxide, peracetic acid, acetyl benzoyl peroxide, hydroxyheptyl peroxide, isopropyl percarbonate, methyl ethyl ketone peroxide, cyclohexanone peroxide, cyclohexyl hydroperoxide, 2,4-dichlorobenzoyl peroxide, cumene hydroperoxide, t-butyl hydroperoxide, methyl amyl ketone peroxide, acetyl peroxide, lauroyl peroxide, benzoyl peroxide, methylcyclo hydroperoxide, t-butyl permaleic acid, t-butyl perbenzoate, di-t-butyl diperphthalate, t-butyl perphthalic acid, p-chlorobenzoyl peroxide, t-butyl peracetate, di-t-butyl peroxide, dibenzoyl diperoxide, lead peroxide and potassium persulphate. The blends may also contain fillers, e.g. carbon blacks, silica and mica; rubber accelerators, e.g. tetramethyl thiuram disulphide, benzothiazyl disulphide, 2-mercaptobenzothiazole, N-cyclohexylbenzothiazole-2-sulphenamide, selenium diethyl dithiocarbamate disulphide and zinc butylxanthate; antioxidants, e.g. phenyl-b -naphthylamine, N,N1-di-b -naphthyl-p-phenylene diamines, aldol-a -naphthylamine, 2, 2, 4-trimethyl-1, 2-dihydroquinoline, hydroquinone monobenzyl ether and 2, 21-methylene-bis(4-methyl-6-tert. butyl phenol); and oils, e.g. derived from coal tar, pine tar or petroleum.  The products may be extruded or moulded, e.g. in the manufacture of pipes, wire coatings and plastic bottles.
Patent GB-927661-A (GB)
Title: Improvements in and relating to self-regulating reciprocating pumps
IPC: F02M59/36
Filed: 1961-10-19
Abstract: 927,661. Fuel injection pumps. P. E. BESSIERE. Oct. 19, 1961 [Oct. 27, 1960], No. 37488/61. Class 102(1). In a fuel injection pump in which the discharge is regulated by a shuttle valve 9 controlling a by-pass port 8 and reciprocated hydraulically in synchronism with the piston 1 by a piston 11, the chambers 10, 12 are in communication with a variable volume chamber 13 the volume of which is varied in accordance with the speed of operating of the pump. The volume of the chamber 13 is varied by a piston 14 which, as shown, is moved against the action of a variable pressure spring 27 by liquid from an engine driven pump 16 the pressure from which varies in accordance with speed; alternatively the piston 14 may be moved by a centrifugal governor.
Patent GB-1223032-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D243/24
Filed: 1968-08-06
Abstract: 1,223,032. Benzodiazepine derivatives. ETABS. CLIN-BYLA. 6 Aug., 1968 [8 Aug., 1967], No. 37560/68. Addition to 1,135,781. Heading C2C. Compounds of the general formula (R<SP>1</SP> = H, C 1-5  alkyl; R<SP>2</SP> = H, C 1-5  alkyl or alkoxy, carbalkoxy, biscarbalkoxymethyl; R<SP>3</SP> = H, halogen, NO 2 , CF 3 , C 1-5  alkyl; R<SP>4</SP>'<SP>5</SP> = H, Cl, C 1-5  alkyl or CR<SP>4</SP>R<SP>5</SP> = cycloalkyl; X = halogen) are prepared by halogenating a compound of the formula with an N-halo derivative of a carboxamide, sulphonamide or imide of a polycarboxylic acid.
Patent GB-920654-A (GB)
Title: Improvements in or relating to the manufacture of magnetic records
Inventor: GROAK JOSEF
IPC: G11B5/004
Filed: 1958-10-15
Abstract: 920,654. Magnetic record copying apparatus. L. FARRER-BROWN. Sept. 4, 1959 [Oct. 15, 1958], No. 37612/62. Divided out of 920,653. Drawings to Specification. Class 40 (2). The description is identical to Specification 920,653, but the claims are directed to the apparatus by means of which the records are reproduced from a master record according to the methods claimed in that Specification.
Patent GB-1144846-A (GB)
Title: Insulated electrical conductors
IPC: H01C7/02
Filed: 1967-08-16
Abstract: 1,144,846. Electric heating resistors. TEXAS INSTRUMENTS Inc. 16 Aug., 1967 [5 Oct., 1966], No. 37726/67. Heading H5H. [Also in Division H1] A polygonal resistance heating tile comprises a layer 26 of conductive polymeric material sandwiched between insulating polymeric layers 23, 25, a firm bond between the layers being achieved by a cross-linking operation. The latter may involve heating, compressing, ionizing radiation or the use of cross-linking agents. The polymeric material may be a polyolefin, halogenated polyolefin, polyacrylic resin or polyester, loaded with powdered metal or carbon to make it conductive. The conductive layer may alternatively be a polymer with ionic sidechain substituents. The conductive part of the tile need not extend over the whole tile area, but extends from one side to the opposite or an adjacent side (Figs. 7, 8, not shown). Conductive epoxy resin may be used to connect adjacent conductors. The conductors are stated to show non-linear positive temperature coefficient of resistance, affording some selfprotection to the heating circuit.
Patent GB-619747-A (GB)
Title: Improvements in or relating to superheterodyne receivers for very short waves
IPC: H04B1/12
Filed: 1946-12-24
Abstract: 619,747. Radio receiving circuits. PHILIPS LAMPS, Ltd. Dec. 24, 1946, No. 37814. Convention date, July 26, 1943. Addition to 609,542. [Class 40 (v)] In a frequency-changing arrangement of the type described in the parent Specification in which local oscillations from the source 10 are applied in phase to the cathode 9 of the mixing valve, and received signals in push-pull to the anodes 6, 7 via a Lecher wire system 3, and radiation of the local oscillations is reduced by arranging the system constituted by the two Lecher wires 3 jointly relative to their surroundings of such dimensions that the point of connexion of the aerial 1 is a potential node for the local oscillator frequency, radiation is further reduced by the interposition in the aerial connexion of a transmission line 16 provided with a branched stub 20. The distance from the point of connexion 18 of the stub line 20 to the Lecher wires 3 is made a quarter-wavelength for the local oscillator frequency. The line 20 is terminated in an earthing bridge 25, its length being such as to produce a potential node for the local oscillator frequency at the point 18. Adjustment for the signal frequency is by means of a shortcircuiting bridge 24.
Patent GB-1403254-A (GB)
Title: Small centrifuges with a low noise level
IPC: B04B7/02
Filed: 1972-08-14
Abstract: 1403254 Centrifugal separator HERAEUSCHRIST GmbH 14 Aug 1972 [27 June 1972] 37824/72 Heading B2P A centrifuge housing 1 having a lid 3 and a floor 4 and within which is mounted a centrifuge rotor 15 coupled to a drive motor is made of hard structured cellular plastics, e.g. polyurethane foam. The rotor-motor assemlbly carries a shroud 13 which is resiliently mounted by means of rubber buffers 12 on a bracket 11  formed integrally with the side walls 2 of the housing. The side walls 2 may be reinforced by means of a perforated metal sleeve 33 or by a metal mesh. Recessed handles 5 are formed in the lower part of the side walls. An instrument and switch panel 7 is located in a cut-out 6 in the frontal side wall. The lid 3 has a handling aperture 8. A chamber 22 defined by a wall part 18 serves for housing an electrical flex. The centrifuge rests on rubber feet 20. Ventilation of the housing is effected by air entering through an opening 32 in the floor 4 and passing through the gap between the shroud 13 and the bracket 11 and through the gap between a baffle plate 23 and the lid 3 and out through the handling aperture 8. The plate 23 defines with the lid 3 an annular space 28 which is subdivided into noise-suppressing chambers by ribs 29 formed integrally with the lid or the plate.
Patent GB-331194-A (GB)
Title: Compositions for decolorising dyed fabrics
IPC: D06P5/13
Filed: 1928-12-22
Abstract: 331,194. Kritchevsky, W. Dec. 22, 1928. Bleaching, processes and materials for. - For decolourizing dyed fabrics, a mixture of (i) a sulphoxylate formaldehyde salt, or of a hydrosulphite, or of zinc dust, with (ii) a solid acid or salt having an acid reaction, and (iii) a small quantity of a sulphonic acid salt of an alkylated polynuclear hydrocarbon, is supplied in small packages in the dry state, requiring then only to be dissolved. Under (i) are specified basic or neutral zinc sulphoxylate formaldehyde, sodium sulphoxylate formaldehyde; sodium hydrosulphite ; zinc dust. Under (ii) sodium bisulphite, aluminium sulphate, tartaric acid, naphthalene sulphonic acid, oxalic acid. And under (iii) isopropyl naphthalene sodium sulphonate, iso-butyl naphthalene sodium sulphonate, amyl naphthalene sodium sulphonate.
Patent GB-1162954-A (GB)
Title: Improvements in Woven Materials
Inventor: NOTT ROBERT EDWARD
IPC: D03D15/00
Filed: 1966-08-24
Abstract: 1,162,954. Foamed or voided films. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 July, 1967 [24 Aug., 1966], No. 37981/66. Heading B5B. [Also in Division D1] A ribbon of a crystallizable α-olefin polymer or copolymer having a width greater than 0À06 inch and ten times greater than its thickness is foamed or has voids therein. A foam ribbon may be produced by injecting nitrogen, steam, carbon dioxide or air from a sintered ring into the molten polymer just before its extrusion, or by adding liquid foaming agents-e.g. water, ammonia, pentane, acetone, or a fluorochlorohydrocarbon-or solid foaming agents-e.g. malonic acid, sodium carbonate/citric and, ammonium bicarbonate p,p-oxibis-(benzenesulphonyl hydrozide) diazoaminobenzene, and dinitrosopentamethylene-to the polymer. The foamed ribbon is preferably drawn. A voided ribbon is produced either by drawing a ribbon "through a neck" as in Specification 922,288 (but preferably using the olefine copolymer described in Specification 1,087,531), or by adding a filler-e.g. titanium dioxide, silica, silicates, powdered glass, carborundum aluminium, pigments, talc or ground mica or mother of pearl to the polymer and drawing the ribbon. The ribbon, preferably before drawing, may be slit to the required width and be coated with antistatic agents, ultra-violet stabilizers, heat seal coating or a coating to confer printability and after drawing may be relaxed. The ribbon may be folded longitudinally before or after drawing. Examples include a polypropylene foamed ribbon and a folded and voided ribbon of a copolymer of polypropylene and polyethylene.
Patent GB-860514-A (GB)
Title: Motor-driven shear device
IPC: B23D15/12
Filed: 1957-12-06
Abstract: 860,514. Shearing. MATTHEWS, S. E. (Georg, H.). Dec. 6, 1957, No. 38018/57. Class 83(4). In a shear in which an eccentric pin on a motor-driven shaft actuates a shear blade carrier, a cut is initiated by movement of a coupling-member to a position in which it transmits the motion of the eccentric pin to the shear blade carrier to effect a shearing stroke, the coupling member then being disengaged. Saturation of a lever 29 manually against spring- action or by a weight 45 when an electromagnet 43 is released lowers a spring-loaded catch 40 which engages a groove 31 in a shaft 9 journalled in the carrier 12 for the moving blade 13, and rotates the shaft 9 sufficiently for one of three arms 33 of the coupling-member 8 to be positioned in the path of the eccentric pin 7 as shown in Fig. 6. A motor 5 through friction gearing continuously rotates the eccentric pin 7 which engages the coupling member 8 and the work is severed. Springs 18 return the blade carrier 12 until the end of the shaft 9 engages a stop. On the next rotation the eccentric pin 7 engages the side of an arm 33 to move the coupling-member 8 until one of the recesses between the arms 33 faces the shaft 2 carrying the eccentric pin 2. In a modification, Fig. 11, upward movement of the blade carrier 12 is limited by engagement of a projection on the carrier 12 with a stop. The shaft 9 is provided with a triangular end 55 which engages a spring- loaded bar 56 to move the coupling-member 8 out of the path of the eccentric pin 7. As shown in Fig. 16, the shear is supplied with strip fed from a straightening-machine 74 through a channel-shaped guide 75 having a domed projection 76 up to a stop 70 adjustable along an angle-section guide 77. A switch associated with the stop 70 actuates the electromagnet 43 to cut the strip which in front of the shear bends up over the projection 76. Near the end of its stroke a projection 81 on the blade carrier 12 tilts the guide 77 to remove the severed length. In a further modification, the stop is mounted at a fixed distance from the shear which runs on guides longitudinally of the work. The shear is moved with the work by the work engaging the stop and is actuated by a switch associated with the stop.