baber/WOPTO huggingface dataset:
Patent GB-1442479-A (GB)
Title: Vacuum circuit-breaking chamber
IPC: H01H33/664
Filed: 1974-09-27
Abstract: 1442479 Vacuum circuit breakers; contacts SIEMENS AG 27 Sept 1974 [28 Sept 1973] 42202/74 Heading H1N In a conventionally arranged vacuum circuit breaker chamber at least one of the contacts has a plurality of rows of slots disposed about a portion of the contact so that any straight line therefrom which passes through a region between adjacent slots in one row will intersect a slot of another row. Fig. 2 shows two rows of two slots 13, 14 concentrically disposed and Figs. 3, 4 (not shown) respectively disclose arrangements for frustroeonically-shaped contacts and for recessed rather than slotted contacts and, in the latter case, the material of the arc-facing contact discs (36, 37) is a copper-chromium alloy as distinct from copper for the remainder. In another embodiment, Fig. 5, the contact is a forged component with two rows of three slots 57, 58 and has an intermediate region 60 with three supporting arms 61 giving a mode of current flow direct into the regions 56 between the slots. The slots or recesses can be other than concentric provided the regions between the slots in each row are "covered" in the manner described.
Patent GB-853782-A (GB)
Title: A new or improved smoker's mouthpiece
IPC: A24F13/06
Filed: 1958-12-31
Abstract: 853,782. Tobacco pipes; cigar and cigarette holders; tobacco smoke filters. COPELL, D. K. Dec. 31, 1958 No. 42234/58. Class 130. Gaps 21 between ribs R allow visual and tactile inspection of a filter F locating in slightly coned smoke bore enlargements of a mouthpiece 17 and mount 13 so as to provide the sole smoke passage therebetween. The filter F comprises several plies of moisture and nicotine absorbing thick paper 22 and 23 defining a bore interrupted by filtering means 25 carried by the plies 23.
Patent GB-1202081-A (GB)
Title: Method of preparing emulsions useful in the treatment of petroleum bearing formations
Inventor: KNIGHT DERAL D
IPC: C09K23/00
Filed: 1967-09-15
Abstract: 1,202,081. Wells. BYRON JACKSON Inc. 15 Sept., 1967, No. 42246/67. Heading E1F. Petroleum bearing formations are acidized with an emulsion comprising a homogeneous mixture of dodecylbenzene sulphonic acid or. a neutralised reaction product of a primary alcohol and chlorosulphonic acid, a hydrocarbon oil and a corrosion inhibitor to which a mineral acid is added.
Patent GB-1405190-A (GB)
Title: Photographic cameras
IPC: G03B7/04
Filed: 1973-09-07
Abstract: 1405190 Cameras PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 7 Sept 1973 [9 Nov 1972] 42307/73 Heading G2A  A photo-resistor 16 is connected to a galvanometer 1 which is rotated by means of a cable 7 coupled to diaphragm and shutter speed setting devices 11, 12 to bring the galvanometer pointer 3 into line with a reference mark 4; the galvanometer having a cam 14 which closes a switch 15 to energize a warning luminescent diode 17 if the galvanometer has to be rotated to its fullest extent due to zero deflection of the pointer 3. In Fig. 2 (not shown) the diode is normally on and is extinguished as a warning.
Patent GB-1526367-A (GB)
Title: Polypeptide
IPC: C07K14/575
Filed: 1976-10-12
Abstract: 1526367 Nona- and decapeptides IMPERIAL CHEMICAL INDUSTRIES Ltd 19 May 1977 [12 Oct 1976] 42318/76 Heading C3H A polypeptide of Formula (I):-H - pyroglu - A - Trp - Ser - Tyr - D - Phe - Leu - Arg - Pro - Azgly - NH 2  wherein A is D - Phe, D - Trp or a direct bond; and the pharmaceutically-acceptable and veterinarily-acceptable acid addition salts thereof. Polypeptides (I) exemplified are:-H - Pyroglu - D - Phe - Trp - Ser - Tyr - D - Phe - Leu - Arg - Pro - Azgly - -NH 2 ; H - Pyroglu - D - Trp - Trp - Ser - Tyr - D - Phe - Leu - Arg - Pro - Azgly- NH 2 ; H - Pyroglu - Trp - Ser - D - Phe - Leu - Arg - Pro - Azgly - NH 2 . Peptide intermediates isolated are:- HEXAPEPTIDES:-Z - Tyr(Bzl) - D - Phe - Leu - Arg(NO 2 ) - Pro - Azgly - NH 2 ; H - Tyr - DPhe - Leu - Arg(H<SP>+</SP>) - Pro - Azgly - NH 2 . TETRAPEPTIDES:-H - Pyroglu - D - Phe - Trp - Ser - OMe,NHNH 2  and N 3 ; H - Pyroglu - D - Trp - Trp - Ser - OMe,NHNH 2  and N 3 . TRIPEPTIDES:-Boc and H - Arg(NO 2 ) - Pro - Azgly - NH 2 ; Z - Tyr(Bzl) - D - Phe - Leu - OMe,NHNH 2  and N 3 ; Z and H - D - Phe - Trp - Ser - OMe; Z and H - D - Trp - Trp - Ser - OMe; H - Pyroglu - Trp - Ser - OMe,NHNH 2  and N 3 . DIPEPTIDES:-Z and H - Pro - Azgly - NH 2 ; Z and H - D - Phe - Leu - OMe; Z and H - Trp - Ser - OMe. Pharmaceutical or veterinary compositions, which may be in a form of oral or parenteral administration, comprise polypeptide (I) in admixture with a pharmaceutically-acceptable or veterinarily-acceptable diluent or carrier therefor.
Patent GB-1273434-A (GB)
Title: Oven doors
Inventor: HETTICH WALTER KARL
IPC: F24C15/04
Filed: 1969-08-28
Abstract: 1,273,434. Oven door. HETTICH & WALLS Ltd. Nov.30, 1970 [Aug.28, 1969], No.42769/69. Heading A4D. A rectangular window frame for an oven door comprises a channelled metal strip having rounded corners, the base of the channel being cut away in the region of the corners to form openings 15 so that the square corners of a glass panel 2, 3 may project through the strip. The frame may be double glazed and the glass panels secured in the channels by a plastic sealant. The frame is made in two parts (4) and (5) joined at (12) by a tab and slot arrangement, Figs.1 and 2 (not shown).
Patent GB-965665-A (GB)
Title: Modification of polymeric materials
IPC: C08K5/5333
Filed: 1960-12-14
Abstract: The Specification describes the addition to a polymer of a substance with the general formula: <FORM:0965665/C3/1> where n is 0, 1 or 2, m is 0 to 100 when n is 2 and 0 when n is less than 2, Y is a phosphorous (=P-) phosphonic (­P=O) or thiophosphonic (­P=S) group, each R is a hydrocarbon, halogenated hydrocarbon, alkoxyhydrocarbon, or (hydrocarbyloxy) halo-hydrocarbon group having 1 to 12 carbon atoms which may be linked to the group Y by oxygen or sulphur or, when n is 2, the two R's may together represent an oxyalkoxy, a halogenated oxyalkoxy, an orthoaryloxy or a halogenated ortho-oxyaryloxy group containing from 2 to 10 carbon atoms, each of R1 and R2 is an alkyl, haloalkyl aryl, haloaryl, alkoxy, haloalkoxy or (hydrocarbyloxy) haloalkoxy group having 1 to 12 carbon atoms, R3 is a hydrocarbon or substituted hydrocarbon group having 1 to 12 carbon atoms which may be linked to phosphorus by oxygen or sulphur and Z is a hydrogen atom or a hydrocarbon or substituted hydrocarbon group having 1 to 17 carbon atoms when n is 2 or having 1 to 10 carbon atoms when n is less than 2, or a furyl or thienyl group.  The polymers include natural and synthetic rubbers, addition and condensation polymers, silicone resins, cellulose derivatives and foamed compositions of the above. Examples describe the addition of such compounds to solutions of nitrocellulose, of cellulose acetate in acetone, and of ethyl cellulose in ethylene dichloride. Specifications 941,706, 960,368 and 961,443 are referred to.ALSO:Wood, filter paper and cotton and viscose rayon cloth are impregnated with a solution of a compound of formula <FORM:0965665/D1-D2/1> where n is 0, 1 or 2; m is 0 to 100 when n is 2 and 0 when n is less than 2, Y is a phosphorous (=P-) phosphonic (­P=O) or thiophosphonic (­P=S) group; each R is a hydrocarbon, halogenated hydrocarbon, alkoxy hydrocarbon, or (hydrocarbyloxy) halo-hydrocarbon group having 1 to 12 carbon atoms which may be linked to the group Y by oxygen or sulphur or, when n is 2, the too R's may together represent an oxyalkoxy, a halogenated oxyalkoxy, an ortho aryloxy or a halogenated ortho-oxyaryloxy group containing from 2 to 10 carbon atoms;  each of R1 and R2 is an alkyl, haloalkyl aryl, haloaryl, alkoxy, haloaklkoxy or (hydrocarbyloxy) haloalkoxy group having 1 to 12 carbon atoms;  R3 is a hydrocarbon or substituted hydrocarbon group having 1 to 12 carbon atoms which may be linked to phosphorus by oxygen or sulphur; and Z is a hydrogen atom or a hydrocarbon or substituted hydrocarbon group having 1 to 17 carbon atoms when n is 2 or having 1 to 10 carbon atoms when n is less than 2, or a furyl or thienyl group in order to render the material fire-proof. In addition the compound may be added as part of a resin composition to impregnate the above materials.  Specifications 941,706, 960,368 and 961,443 are referred to
Patent GB-1479148-A (GB)
Title: Variable pitch ducted fan gas turbine power plant
IPC: B64D27/16
Filed: 1974-10-03
Abstract: 1479148 Gas turbine ducted fan engines - reverse thrust UNITED AIRCRAFT CORP 3 Oct 1974 [11 Oct 1973] 42999/74 Heading F1J The invention relates to a gas turbine ducted fan engine in which anti-swirl vanes 18 are disposed in the duct downstream of the fan and in which the fan blades may be moved to reverse pitch for thrust reverse, the outlet nozzle of the fan duct being provided with variable flaps which are movable so as to form a bell-mouth shape air intake during thrust reverse operation. The engine comprises a core engine 16 and a fan 14 having variable pitch blades 20 disposed within a duct defined by a fan casing 12 the leading edge of which is indicated at 22. Anti-swirl vanes 18 disposed in the fan duct extend between the fan casing 12 and the casing 30 of the core engine. A series of flap members 32 is pivotally mounted at the downstream end of the fan casing, the flaps being moved to the open position shown simultaneously with movement of the fan blades to the reverse thrust position, the flaps then defining a bell-shaped intake for air inflow as indicated by arrows B; the air inflow into the core engine intake 24 is thereby improved.
Patent GB-1198676-A (GB)
Title: Water Treatment Process.
Inventor: HALL ERIC STANLEY
IPC: C02F1/72
Filed: 1967-09-21
Abstract: 1,198,676. Water treatment. WATER RESEARCH ASSOCIATION. 12 Nov., 1968 [21 Sept., 1967], No. 43065/67. Heading C1C. Water containing dissolved oxygen is treated in order to remove dissolved organic compounds by passing it through a bed containing supported or unsupported manganese dioxide under conditions that substantially no dissolution of manganese takes place. A soluble oxidizing agent e.g. chlorine or hypochlorite, may be added to the water before contact with manganese dioxide.
Patent GB-1158116-A (GB)
Title: Facsimile Recording Apparatus
IPC: H04N1/00
Filed: 1966-09-27
Abstract: 1,158,116. Pens for recording instruments. XEROX CORP. 27 Sept., 1966 [4 Oct., 1965], No. 43088/66. Heading B6P. [Also in Division H4] A facsimile receiver comprises a platen for supporting a length of web recording material in an arcuate configuration, at least two feed roll assemblies for advancing the web at a uniform rate over the platen, a marking device carried on a rotatable support and effective to traverse the web material to mark it in response to facsimile signals, and a web cutter which traverses the web material when actuated in response to a control signal. In the embodiment illustrated in (Fig. 8) paper strip (25) is drawn from a supply spool by pairs of guide rollers (detailed in Fig. 5), and is shaped to partcylindrical form to overlie platen (61). A rotary turret (110) carries one or more ink pens (109) which continuously sweep across the width of the paper strip and are caused to mark it by electrostatic deposition of the ink in response to facsimile signals applied to the pen(s) from source (128). Turret (110) also carries cutting wheels (149) which are moved into engagement with the paper by a solenoid and cam system (140 detailed in Figs. 6 and 9), in response to a received "copy finished" signal to separate the completed facsimile from the paper supply. Pen details Fig. 10.-Ink from a reservoir 120 passes through a capillary tube 125 and is retained by surface tension between two wires 134 with their free ends sprung against each other. Only in the presence of an electrical potential on the wires does the ink meniscus reach the apex formed by the two wires and hence cause marking of the paper. Ink flow through tube 125 due to centrifugal forces is restricted by a central wire.
Patent GB-1083637-A (GB)
Title: A method for desalting sea water
IPC: C02F1/04
Filed: 1964-10-22
Abstract: 1,083,637. Distilling sea water; multiple-effect evaporators. F. P. ZAOSTROVSKY, V G. SHAT SILLO; S. I. GOLUB; V. B. CHERNOZUBOV; E. P. NOVIKOV and V. I.  TKACH. Oct. 22, 1964, No. 43093/64. Heading B1B. Sea water is distilled in a tubular-type multiple effect-evaporator in the presence of at least 8 grams per litre of added calcium carbonate to prevent scale forming. The sea water circulates through each evaporator at a rate of at least 1 metre per second, and the boiling temperature does not exceed 115‹C. The evaporation is so effected that the water does not undergo more than 4 fold concentration. The sea water feed cools a condenser 1 before being pumped through preheaters 9 where it is freed from dissolved gases, to the first of four evaporators 3. Steam from a power station heats the first evaporator, its condensate being returned to the station. The steam from the first evaporator heats the second and so on, the steam from the last evaporator being condensed at 1 and pumped to the consumer together with the condensate from the heating steam in the last three evaporators. The thick liquor from the last evaporator passes to a clarifier 4 where the calcium carbonate which has caused crystallization of the salts in the sea water, is separated out and refed to the feed line.
Patent GB-1402414-A (GB)
Title: Electrodes for electrochemical processes
IPC: C25B11/04
Filed: 1971-09-16
Abstract: 1402414 Coated electrodes IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Aug 1972 [16 Sept 1971] 43190/71 Heading B2E [Also in Divisions C7 and Hl] An electrode for electrochemical processes, e.g. anode in a mercury cathode cell electrolysing alkali metal chloride solution, electrocatalysis in a fuel cell, electrosynthesis or cathodic protection, comprises a support of film-forming metal (Ti, Ta, Zr, Nb, W) or alloy thereof, and a coating thereon consisting of an electrocatalytic, conducting matrix in which is embedded a non-conducting particulate or fibrous refractory material, e.g. ThO 2 , TiO 2  or alumino-silicate particles of 1-50 micron size, or glass, ZrO 2 , Al 2 O 3  or SiO 2  (such as quartz wool) fibres not exceeding 1mm in length. The matrix may be of one or more Pt group metals and/or oxides with or without non-noble metal (excluding Au, Ag, Hg or Pt group metal) oxides e.g. of Ti, Zr, Nb, Ta, W, Sn, Ge or Sb. The coating may be formed on the chemically cleaned support by spraying thereon at least one layer of a paint composition comprising thermally decomposable compounds of the or each metal forming the finished coating in a liquid vehicle, depositing the particulate or fibrous refractory material onto the layer of paint composition while still in the fluid state, drying the paint layer by evaporating its liquid vehicle, and firing the coated support at 250-800C to convert the compounds into the matrix. A plurality of layers may be applied, each dried and fired as above, when refractory fibres of mean length greater than 50 microns are deposited only onto the first layer or first two layers while still in the fluid state. Alternatively the refractory material, particularly non-fibrous particles, may be mixed into the paint composition before it is applied to the support. Suitable thermallydecomposable compounds are halides and halo-acid complexes, resinates and alkoxides of the Pt group metals; and alkoxides, alkoxyhlides (Cl, Br or F) and resinates of the filmforming metals, e.g. alkyl orthopoly- or halo- (Cl, Br or F) titanates. A exemplified paint composition is RuCl 3  and tetrabutyl orthotitanate in n-pentanol. For forming a Pt group metal matrix, a reducing agent e.g. linalool (3, 7-dimethyl-1, 6-octadien-3-ol) is included in the paint composition. For forming a preponderantly oxide matrix, each layer is fired in an oxidising atmosphere e.g. air.
Patent GB-1026568-A (GB)
Title: Arc extinguisher
IPC: H01H85/42
Filed: 1963-11-04
Abstract: 1,026,568. Fusible cut - outs; gas - blast switches. DOWSMITH Inc. Nov. 4, 1963 [Nov. 15, 1962], No. 43496/63. Headings H2B and H2G. An arc extinguishing material, for a fuse and, it is stated, for a switch, contains a dispersion of molybdenum disulphide. and produces a dense gas when the arc passes, the gas, in turn, extinguishing the arc. The arc-extinguishing material, which may be nylon, ethyl cellulose, polypropylene or polystyrene, forms the liner 16, Fig. 1, of the fuse tube, the strengthening outer casing 15, which also provides extra insulation, being composed of a fibre-reinforced epoxy or polyester resin. The fuse link 4 has a fuse wire 10 and strain wire 9 connected between two terminals 5, 11. Terminal 5 is connected to the external terminal 2 by a threaded member 6 and a button 7, while terminal 11 has a flexible lead 12 clamped at 13 to external terminal 3. After the molybdenum disulphide has been incorporated into the base arc-extinguishing material, the material is melted to form the liner by moulding, extrusing &c. The liner is then mounted on a mandrel and fibrous material impregnated with the uncured resin, applied over it to the required thickness, and the whole structure is baked. Bonding is improved when the liner is given a roughened or ridged outer surface beforehand.
Patent GB-1434138-A (GB)
Title: Self-locking piston and rod assembly for a fluid motor or the like
IPC: F15B15/14
Filed: 1974-10-10
Abstract: 1434138 Pistons CATERPILLAR TRACTOR CO 10 Oct 1974 [23 Oct 1973] 43974/74 Heading F2T In a screw-threaded connection between a piston 11 and a piston-rod 21, a thread 43 for a lock-nut 42 is of finer pitch than that of thread 33, so that unscrewing motion of the piston will bring it into tighter engagement with the lock nut.
Patent GB-892302-A (GB)
Title: Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core
Inventor: HUMPIDGE RICHARD
IPC: B29C48/06
Filed: 1959-12-29
Abstract: 892,302. Extrusion heads. FAWCETT PRESTON & CO. Ltd. Dec. 22, 1960 [Dec. 29, 1959], No. 44154/59. Class 87(2). An extrusion head for the simultaneous application of two layers of an extrudible material to an inner cylindrical core, includes an inner tip unit j, a combined tip and die unit e, and a die k and sleeve means for varying the eccentricity of the inner tip unit and the die. The eccentricity of the inner tip unit j may be varied by rotation of the tip unit in the screw threads o and h<SP>1</SP> which are slightly eccentrically mounted on the tip unit j, and in the sleeve h respectively. When the desired degree of eccentricity has been obtained the tip unit j may be locked in position by means of a nut p acting on a sleeve g acting on a shoulder on the tip unit. The parts g, h, and j when locked together may be rotated in the holder f. The thickness of the inner coating on the core may be varied by adjustment of a nut s on a fixed stud t, the nut bearing against a gland ring u screw threaded on the sleeve g and locked in position by a screw u<SP>1</SP>. The eccentricity of the die k may be varied by means of radial screws m acting on the die holder l and serving also to lock it in position. The thickness of the outer covering on the core may be varied by adjustment of an annular screw threaded ring q bearing on the die holder l. Thermoplastic material to provide the inner layer covering is fed from an extruder screw through passages b, b<SP>1</SP> to the annular space between the tip unit j and unit e, and material to form the outer covering is fed through passage a to the annular space between the unit e and the die k. The core tube holders d, fare held in position by a retaining ring v, their rotation being prevented by a key w.
Patent GB-1439767-A (GB)
Title: Radiant gas burners
IPC: B32B7/02
Filed: 1972-09-25
Abstract: 1439767 Laminates FOSECO INTERNATIONAL Ltd 24 Aug 1973 [25 Sept 1972 31 Oct 1972] 44216/72 Heading B5N [Also in Division F4] A radiant gas-fired heater comprises a radiant burner assembly having an inner gas distributing layer and an outer radiating layer. The inner layer is formed of a ceramic material of apparent porosity 70-95% having a pore count of 8-28 pores per linear cm. The outer layer is formed of a ceramic material of apparent porosity of 90-99% having a pore count of 2-12 pores per linear cm. The inner and outer layers may both be of cellular ceramic materials. In this case preformed wet layers are placed one on top of each other, weighted down and dried. The resulting composite block is then heated in an electric muffle furnace. The inner layer may be, instead, of fibrous ceramic material, and may be bonded to the outer layer by first forming the outer layer in cellular ceramic material, filtering a ceramic fibre containing slurry through the outer layer, so as to form a fibrous mat interlocked into the surface cells of the outer layer, and finally drying by heating. Any inorganic fibre capable of withstanding the operating temperatures may be used; preferably alumino-silicate fibre, asbestos, silica fibre or zirconic fibre. A blend of shorter and longer fibres may be used. Water is preferred as the medium in which the fibres are dispersed to make a slurry, and a refractory bonding agent, e.g. silica hydrosol may be dissolved in the slurry or applied later.
Patent GB-998592-A (GB)
Title: Electron discharge device
IPC: H01J23/207
Filed: 1962-11-22
Abstract: 998,592. Klystrons. VARIAN ASSOCIATES. Nov. 22, 1962 [Dec. 1, 1961], No. 44259/62 Heading H1D. An electric discharge device, e.g. a multiple cavity klystron, having means for producing and directing a beam of charged particles along a predetermined path to a collector, and having means spaced along the path for producing successive electromagnetic interaction with the particles and for extracting high-frequency energy from them, comprises a vacuum-tight envelope enclosing the path which includes a plurality of metallic cup-shaped members 35, 39 each having apertures in the bases of the cups and each having outwardly directed flanges at the rims of the cup, at least some of the cupshaped members being joined at their bases in pairs and adjacent pairs being joined together at the flanges, the whole structure of cup-shaped members forming the envelope. An apertured disc 37 may be inserted between the flanged, and drift-tubes 38 may extend through the apertures in the discs and in the bases of the cups and extend into resonators 14, 15 formed by cups 35. The drift tubes may be cooled by fluid circulating through channels 44, 45, the fluid being supplied through channels provided in a septum 41 provided in each cup 39. The resonators are tuned by a tuning structure as described and claimed in Specification 998,593. The device may further comprise an output cavity resonator 16 having an output iris 71 formed in the wall of the resonator and communicating with a waveguide 74 having a portion with tapered walls, thus giving a frequency dependent impedance characteristic which compensates for changes in the resonator configuration during tuning and keeping the gap impedance substantially constant over the tunable frequency band of the device. Specifications 998,594 and 998,595 also are referred to.
Patent GB-1203005-A (GB)
Title: Method of structural construction
Inventor: DICKER EDWARD T
IPC: E04B1/16
Filed: 1968-09-18
Abstract: 1,203,005. Walls. E. T. DICKER. 18 Sept., 1968 [18 Sept., 1967; 5 April, 1968; 26 Aug., 1968], No. 44290/68. Heading E1B. A wall is built up by placing pervious racks dry concrete mix 10 on a foundation beam 24 and then pouring water on top of the racks and allowing the concrete to set. The racks are interconnected by H-section metal ties and reinforcement rods project from the beam into the bottom layer. Bolts may be inserted in the top course of racks for attaching a top plate and roof joists. Window and door frames and horizontal reinforcement rods may be included in the wall. A concrete floor is cast between the walls. Finish layers 30 of concrete or plaster possibly incorporating reinforcement or services are applied to outer and inner surfaces.