baber/WOPTO huggingface dataset:
Patent GB-875988-A (GB)
Title: Improvements relating to processes for the continuous manufacture of endless bodies of thermoplastic materials and apparatus therefor
IPC: B29C48/95
Filed: 1957-12-16
Abstract: 875,988. Extrusion machines. INVENTA A.G. FUR FORSCHUNG UND PATENTVERWERTUNG Dec. 16, 1957 [Dec. 20, 1956], No. 39056/57. 'Class 87(2). A process for the continuous production of long bodies of thermoplastic materials, e.g. polyamides, polyesters or polyethylene, comprises extruding the plasticised material into an open mould and, during extrusion, applying a film of lubricant between the mould and the extrusion, by means of a filter forming part of the mould wall, the pressure required to force the lubricant through the filter being greater than the extrusion pressure. The material 1 is forced by a screw 3 from a casing 2 through a nozzle 4 into a mould whose wall has a filter 5 supplied with lubricant from a reservoir 8 by a pump 7. The material may be kept plasticised between the nozzle 4 and filter 5 by means of a heater 10 and be cooled after the filter 5 by a cooling chamber 12. The filter may be of sintered iron, corundum or glass and the lubricant may be silicone oil or paraffin. Where tubes are extruded the bore of the tube may be similarly lubricated.
Patent GB-956540-A (GB)
Title: Improvements in or relating to conveyor arrangements for elongated articles
IPC: A24C5/33
Filed: 1962-10-16
Abstract: 956,540. Delivering cigarettes in orderly arrangement. A. SCHMERMUND. Oct. 16, 1962 [Nov. 10, 1961], No. 39095/62. Heading A2C. [Also in Division B8] Two rows of oppositely facing cigarettes 19 are fed along a base plate 22 to grooves 2 of frustoconical members 1 which rotate cigarettes of each row symmetrically through 90 degrees and deposit them in a single row on belts 15, 15<SP>1</SP>, the cigarettes being similarly orientated with respect to their longitudinal axes. The members 1 are mounted on shafts 7 and are driven by gears 9, 10 and 10<SP>1</SP>. Each of grooves 2 of each member 1 is supplied with suction through bores 3 and a suction chamber 6, formed in the surface of a bearing member 5, which is connected to a suction line 18. Guides 12 and 13 are provided for directing cigarettes from the members 1 to the belts 15, 15<SP>1</SP>, each guide having portions which engage in annular groove 4 in the members 1. In an alternative arrangement the members 1 may be geared together at their apices and the cigarettes 19 fed thereto in two spaced rows.
Patent GB-920005-A (GB)
Title: Improvements in or relating to electric arc discharge apparatus
Inventor: HOLLIDAY JOHN HUBERT
IPC: H01J13/28
Filed: 1959-11-18
Abstract: 920,005. Metal vapour converters. GENERAL ELECTRIC CO. Ltd. Nov. 18, 1960 [Nov. 18, 1959; June 3, 1960], Nos. 39195/59 and 19759/60. Class 39 (1). In a mercury vapour rectifier, the cathode comprises a thin film of liquid metal upon a solid cathode member, and the main arc is initiated by a spark gap formed by electrodes 20, 21 extending down towards the cathode film. The spark gap electrodes are preferably concentric as shown. The anode and cathode are of mild steel, Mo or Ni. A shield at cathode potential surrounds the anode. The cathode is cooled, a baffle being provided in the cooling circuit. Inner electrode 20 is of tungsten and is insulated by a glass sheath 22. Electrode 21 is held at cathode potential and positive pulses are applied to electrode 20. In other modifications, a number of tubular anode leads are each coaxial with a cathode lead, or the anode and cathode leads are coaxial cables having tubular inner conductors. The outer conductors are the cathode leads, and the inner conductors are secured to each anode lead at the top to form a non-inductive arrangement. The inner conductor is a squirrel cage.
Patent GB-1164164-A (GB)
Title: Improvements in or relating to Electrical Switchgear
IPC: H01H1/58
Filed: 1966-09-02
Abstract: 1,164,164. Switch contacts. PERITUS A.B. 2 Sept., 1966 [22 Sept., 1965], No. 39301/66. Heading H1N. A switch-gear contact with electrodynamic reinforcement of contact pressure, comprises a resiliently mounted pivotal part 23, Fig. 1, for abutting engagement with contact 26 and supported on a rigid part 13-17 having portions 16, 17 substantially at right angles, with the part 16 parallel and close to the pivotal part 23 so that the current assists contact pressure. In breaking circuit the contact 23 is tilted by spring 29 so that the leading edge 25 first makes contact before a break is made at the raised portion 24 so that arcing at the portion 24 is avoided. Owing to the hairpin shape of the current path the arc tends to be blown outwards by the electrodynamic forces.
Patent GB-827757-A (GB)
Title: Improvements in and relating to alternating current arc welding apparatus
IPC: B23K9/073
Filed: 1956-12-27
Abstract: 827,757. A.C.arc-welding systems. ZACK, M. Dec. 27, 1956, No. 39362/56. Class 38 (4). In an apparatus for welding workpieces 5, 6, a parallel resonant circuit 7, 8 to improve the power factor, is interposed between one terminal 2 of an A.C. source 1 and the electrodes 9, 10, which may be used on the same weld, or simultaneously on two welds. A stepup transformer may be substituted for capacitor 8, with a plurality of capacitors connected to the h.v. secondary winding. Each capacitor may have an inductor in series to absorb current surges. In an alternative arrangement, only one electrode 9 is employed, capacitor 8 being connected directly to the workpiece 5.
Patent GB-1101155-A (GB)
Title: A method and apparatus for recording measurements photographically
Inventor: BRACEWELL RALPH ARNOLD
IPC: G01D15/14
Filed: 1965-09-15
Abstract: 1,101,155. Recording apparatus. CRESSWELL'S ASBESTOS CO. Ltd. Sept. 14, 1966 [Sept. 15, 1965], No. 39456/65. Heading G1J. Measurement recording apparatus comprises a light proof casing 1 in which a screen 11 having a line of calibrated perforations is interposed between a movable sheet of light-sensitized material 3 and a light-source 17 timed to flash  at predetermined intervals, and a movable measurement indicator 18 disposed between the light-source and the screen to cast a distinct shadow through a slit in the screen parallel to the perforations on to the light-sensitized material, wherein each flash of the light-source serves simultaneously to record a calibration scale and to record a shadow image on the light-sensitized material so as to build up a graph giving a record of the measurements being taken on the appropriate scale. The apparatus can be used to record any measurement provided the measurement can be converted into rectilinear motion of an indicator such as a column of opaque liquid. To make a comparative analysis more than one movable measurement indicator can be included. The light-sensitized material is held in contact with the screen by a pressure-pad 13 and driven by a roller 8 from the spool 4 to the take-up spool 9. The light-source or sources is in the form of a photo-flash tube or tubes.
Patent GB-1114706-A (GB)
Title: Nuclear reactor fuel element assemblies
Inventor: RIDGWAY JAMES
IPC: G21C3/33
Filed: 1964-09-29
Abstract: 1,114,706. Fuel assemblies. UNITED KING DOM ATOMIC ENERGY AUTHORITY. 22 Sept., 1965 [29 Sept., 1964; 8 Sept., 1965], Nos. 39524/64 and 38452/65. Heading G6C. [Also in Division B3] A fuel assembly comprising parallel elongate fuel rods is braced intermediate the end grids by at least one transverse spacing grid; each fuel rod has a group of at least three projections on its outer surface, the group coinciding with the transverse spacing grid so that the projections space the rods from the grid. Thus, fretting at these points of contact does not affect the cladding integrity and unrestricted thermal elongation is permitted. The projections and cladding are of zirconium alloy and may be attached thereto by brazing, or electron beam or fusion welding; they may alternatively be integral with the cladding. In an emergency, resulting in a loss of coolant in the fuel channels, water may be sprayed from a central tube in the assembly on to the fuel rods. Portions of fractured fuel elements are supported by a wire grid at the base of the assembly, thereby preventing fuel fragments falling into the lower end of the fuel channel.
Patent GB-1013587-A (GB)
Title: Improvements in or relating to load-balancing hoists
IPC: B66D3/18
Filed: 1964-09-29
Abstract: 1,013,587. Winches; self-sustaining gear. BIRFIELD ENGINEERING Ltd. Sept. 29, 1964 [Oct. 14, 1963], No. 39538/64. Heading B8B. [Also in Division F2] A hoist for balancing a load and actuated by fluid pressure on an axially movable end wall 72, Fig. 2, of a flexible pressure chamber 80 operating through a ball-nut 48 and fixed screw 38, has a pressure controlled check-valve (not shown) arranged in the supply line from the manually-controlled air pressure regulator, whereby escape of fluid from the chamber 80 and inadvertent lowering of the load is prevented on failure of the fluid pressure supply. Raising and lowering of the load is controlled from a bleed valve 140, Fig. 1, coupled by a flexible pipe 22 to the pilot control system of the air pressure regulator. The bleed valve 140 (see Division F2) has alternative pre-set positions so that the hoist may be adjusted to support different loads or merely the loadengaging means 18. The fluid pressure is supplied through a coiled flexible pipe 84 to permit movement of the hoist along a track 12. Controls 108, 112 arranged, externally of the hoist adjust the pilot system air pressure and rate of flow in the pilot system so that the rate of response of the hoist may be varied. The various valves, Fig. 5 (not shown), are arranged within the end casing 32 and the fluid supply is coupled to the chamber 80 through a bore 46 in the ball-screw 38. The grooves 60 in the cable drum 54 and the ball-nut screw grooves 50 are arranged to be of equal pitch so that the position of the load support cable 20 is unchanged during winding and unwinding.
Patent GB-1365104-A (GB)
Title: Bistable electric switch
IPC: G01F23/56
Filed: 1971-08-24
Abstract: 1365104 Magnetic switches DANFOSS AS 24 Aug 1971 [31 Aug 1970] 39651/71 Heading H1N A bi-stable electric switch 1 includes a permanent bar magnet 16 pivoted at 17 with polepieces 19, 23 adjacent its ends, each stable position being when an end of the magnet 16 is adjacent its corresponding polepiece 19, 23, and an armature 13 carrying a moving contact 14, there being an air gap 26 between polepiece 19 and armature 13 so that with zero air gap as shown contacts 14, 10 are closed and as magnet 16 pivots anti-clockwise (under the action of a second permanent magnet 2 attached to a float) the force between polepiece 19 and armature 13 first decreases and then becomes repulsive, opening the contacts. Also assisting in opening the contacts is spring 12 carrying armature 13, spring 12 being biased to the contacts open position and the fact that as magnet 16 pivots anticlockwise its end strikes spring 12.
Patent GB-964316-A (GB)
Title: Improvements relating to the securing together of two members of an article of furniture for upholstery purposes
IPC: A47C31/04
Filed: 1959-11-25
Abstract: 964,316. Spring upholstery. E. A. PARSONS. Nov. 25, 1960 [Nov. 25, 1959], No. 39946/59. Heading A4M. [Also in Division F2] In a chair, tension springs 15 are each secured to the frame by means of a cotter pin 12 driven into an oblique hole 11 drilled in a side member 10. Alternatively a nail with an eye in the head portion is driven into the hole. Specification 964,317 is referred to.
Patent GB-399651-A (GB)
Abstract: 399,651. Secret-contact-combination switches. HESKETH, W. H., Royal Artillery Barracks, Woolwich, London. Oct. 6, 1932, No. 27752. [Class 38 (v).] A secret-contact-combination switch for controlling the ignition of a motor vehicle comprises three or more contact-carrying rotatable insulating discs a<1> mounted on an axle b, each disc having two adjustable,lettered jackets a allowing for ready variation of the combination. The number of contacts carried by each disc is equal to the number of engine cylinders and these contacts are at irregular distances from the axle. The contacts of the centre disc are spring-pressed plunger contacts e which, when the discs are correctly set, engage contacts f on the outer discs and the contacts f in turn engage fixed spring contacts g to complete the four sparking circuits.
Patent GB-1536076-A (GB)
Title: Instrument for obtaining a vertical angle
IPC: G01C9/12
Filed: 1977-09-26
Abstract: 1536076 Surveying instruments G COLLIS 26 Sept 1977 40052/77 Addition to 1443695 Heading G1F [Also in Division G2] A prismatic monocular has attached at a side an inclinometer (shown as a weighted disc 35 pivotally mounted) comprising a scale illuminated by a tritium source 36 and an optical projection system comprising lenses 24, 25 and magnifying prism 28 for projecting the scale on to an index wire 18 in the eyepiece of the monocular. The scale may be calibrated to show height.
Patent GB-854931-A (GB)
Title: Lubricant
IPC: C10M173/02
Filed: 1958-12-15
Abstract: A fire-resistant lubricant comprises an aqueous dispersion of molybdenum disulphide which contains dissolved therein a water-soluble agent for increasing the viscosity of the lubricant. The water-soluble viscosity-increasing agent may be sorbitol, polyvinylpyrrolidone (i.e. N-vinyl collidone polymer), polyalkylene glycol (e.g. polypropylene glycol), a polymerization product of acrylic acid, polyvinyl alcohol or methyl cellulose. The lubricant may contain a corrosion inhibitor, for example one comprising an aqueous alkaline solution of hydrazine hydrate with or without an emulsifiable mineral oil.  In an example, a lubricant consists of molybdenum disulphide, sorbitol, an aqueous alkaline hydrazine hydrate solution (wherein the alkalinity is provided by trisodium phosphate and caustic soda) and emulsifiable mineral oil (e.g. cutting oil).
Patent GB-1527352-A (GB)
Title: Shaped articles of polyoxadiazoles
IPC: D01F6/74
Filed: 1974-09-17
Abstract: 1527352 Brominated polyphenylene oxadiazole filaments IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Sept 1975 [17 Sept 1974 (2) 11 Dec 1974] 40421/74 40422/74 and 53544/74 Heading B5B Polyphenylene - 1,3,4 - oxadiazole has repeating units  in which R 1  is a p-phenylene residue and R 2  a n-phenylene one. The mole ratio of R 1  residues to R 2  is from 100/0 to 10/90, and at least some of the R 1  and/or R 2  residues are substituted by bromine at the position ortho to the heterocyclic ring. A solution of the polymer in oleum or sulphuric acid is extruded through a gaseous medium into an aqueous coagulant to form filaments which are then withdrawn, washed to remove the coagulant, dried and heated to a temperature of at least 350‹ C. whilst being stretched to a draw ratio of at least 6 : 1. The polymers are prepared by reacting isophthalic end terephthalic acids or brominated derivatives thereof with hydrazine sulphate. If the unbrominated acids are used, the resultant polymer is treated with bromine.
Patent GB-1148990-A (GB)
Title: Colour base compositions for the toning of black illustration intaglio printing inks and process for their preparation
IPC: C09D11/02
Filed: 1967-09-05
Abstract: 1,148,990. Phenol-modified colophony compositions. FARBWERKE HOECHST A.G. 5 Sept., 1967 [5 Sept., 1966], No. 40561/67. Heading C3R. [Also in Divisions C4 and C5] A toning-composition for soot pigmented black intaglio printing inks comprises a blue triphenyl rosaniline base and/or a black aniline base, a natural or synthetic acidic hard wax, and a resin soluble in such inks. The wax, which may be present in an amount at least 0À7 parts by weight per part colour base, may be an acidic montan wax, a copolymer of an unsaturated hydrocarbon, e.g. ethylene, and an unsaturated carboxylic and/or sulphonic acid of less than 6 carbon atoms, or a mixture thereof, having an acid value of at least 30, preferably 100-140. The resin, present in an amount 0À2-9 parts by weight per part colour base/wax mixture, may be a phenol-modified colophony. In Examples 1, 2 and 4 a phenolmodified colophony and acid montan wax are used in conjunction with (1) a triphenyl rosaniline, (2) an aniline black and (4) a triphenyl rosaniline plus another triphenyl methane base. The colour base solubilized by the wax is melted with the resin, and the solidified molten mass finely ground.
Patent GB-1180069-A (GB)
Title: Improvements in the Production of Sand-Lime Bricks.
Inventor: ANDERSSON GORDON
IPC: C04B28/20
Filed: 1967-09-12
Abstract: 1,180,069. Sand-lime bricks. YTONG INTERNATIONAL A.B. 12 Sept., 1967 [15 Sept., 1966], No. 40702/67. Heading C1H. Sand-lime bricks are produced by forming a mixture of a calcareous binder and a granular filler containing coarse grains having a max. diameter greater than 1 mm., adding water and forming and steam-hardening bricks from the mixture, the binder being such that after steamhardening, the generated junction material, cementing the coarse grains together, has a resistance to fracture at least equal to and preferably exceeding that of the coarse filler grains. In an example, 15 tons of crushed lingulid sandstone was mixed with 1À15 tons of lime, water added in amount 5% by wt. of the dry mixture, and the plastic mass shaped at a pressure of 370 kp/cm.<2> The bricks were steamcured at 16 kp/cm.<2> and 300‹ C., and when split the coarse filler grains divided as well as the binder, to produce an improved texture to the cut surface.
Patent GB-991436-A (GB)
Title: Hydraulic torque converter
IPC: F16H41/26
Filed: 1962-10-29
Abstract: 991,436. Hydrodynamic torque converters. TWIN DISC CLUTCH CO. Oct. 29, 1962 [July 11, 1962], No. 40837/62. Heading F2C. [Also in Division B3] A hydrodynamic torque converter comprises an impeller 15, a turbine 19 and a stator 26 which may either be permanently fixed or may be mounted by means of a one-way brake 31, and the blades 17, 22, 29 of the impeller, turbine and startor are simply curved and devoid of twist so that they may be cast in one piece with the respective outer and core rings 12 and 16, 20 and 21, and 27 and 28 by the sand moulding method. The shape and relative dimensions of the torus are specified in detail, and the possible range in the number of blades of the pump, turbine and stator and their inlet and outlet angles &c. are also specified. The impeller and the turbine are manufactured in the same way, and considering the impeller, master blades are mounted on a first mould ring corresponding in shape with the outer ring 12 and are abutted by a second mould ring corresponding to the core ring 16. This assembly is then placed in a core box to receive the moulding sand, either by way of shell or common sand moulding. When the sand has cured, the first mould ring, corresponding to the outer ring 12, and the master blades are moved away from the sand core, the master blades having a suitable draught for this purpose. The stator is made somewhat differently, master blades identical in shape to the stator blades 29 being positioned between mould rings corresponding to the outer and core rings 27, 28. The assembly is then placed in a core box to receive, the moulding sand, and after curing the mould rings are separated, the mould ring corresponding to the core 28 being diametrically split for separation in a radial plane, and the ring corresponding to the outer ring being split transversely to the axis for axial separation. The master blades are then removed by individually driving them inwardly towards the axis of the sand core.
Patent GB-911265-A (GB)
Title: Apparatus for the reduction of pressure waves or surges in a pressurized water supply system
Inventor: NEWMAN JERROLD STUART
IPC: F16L55/053
Filed: 1960-11-28
Abstract: 911,265. Pressure-relieving devices for fluids; hydraulic accumulators. JERREN AFFILIATED COS. Ltd. Nov. 28, 1960, No. 40862/60. Classes 69 (2) and 135. A shock absorber for use in domestic plumbing systems and the like for reduction of shock waves, comprises a resiliently distendable thimble tube member 10 having its open end sealed to a correspondingly shaped rigid outer casing 17 which has a wall 20 spaced a substantial distance from the resilient member to permit limited distention thereof, the open end of the casing having a closure 25 and a junction member 32 having an opening in registration with the open end of the resilient member for attachment to the plumbing system. The resilient thimble tube is thickened at zones 15, 16. A slightly-tapered space 30 between the closure 25 and the casing and also a retaining flange 14 of the resilient member may be sealed by an adhesive. The closure is retained by peening of the casing at 31. It is stated that the apparatus may be designed to respond in tune with the pressure waves or surges.
Patent GB-1002009-A (GB)
Title: Inorganic fibres and method of making them
IPC: C04B35/622
Filed: 1963-10-16
Abstract: Long fibres of gamma-alumina are made by reacting an upper layer of molten aluminium metal in a static closed system with a lower layer of 90 to 99.75 weight per cent of at least one metal oxide which has a more positive free energy of formation than aluminium oxide and 0.25 to 10 weight per cent expressed on a metal oxide basis of a promoter comprising at least one of potassium, rubidium, caesium their respective oxides, and compounds thereof thermally decomposable to the corresponding oxide, at 700 DEG  to 1000 DEG  C. for a period of time of at least 0.5 hours and sufficient to attain the desired fibre formation. Preferably, a mixture of 92 to 97 weight per cent of metal oxide, for example PbO, Cu2O, Fe3O4, CoO, Ni2O3, Cr2O3, TiO2, MnO2, ZnO, MoO3, MgO, SiO2 and SnO2, and 3 to 8 weight per cent of promoter, for example Cs2CO3 or KNO3, is contacted with molten aluminium metal at 700 DEG  C. to 850 DEG  C. for 5 to 7 hours in a reaction vessel, which may consist of a silica crucible which has been previously reacted with molten alumina, the fibrous product growing at the interface between the molten aluminium metal and the metal oxide-promoter mixture. Specification 947,355 is referred to.
Patent GB-1206273-A (GB)
Title: Improvements relating to means for writing binary codes
Inventor: RILEY DENNIS ARNOLD
IPC: B07C3/00
Filed: 1967-03-17
Abstract: 1,206,273. Controlling the discharge of endless conveyers. SOVEX Ltd. 14 March, 1968 [17 March, 1967], No. 41251/69. Divided out of 1,206,272. Heading B8A. Means for writing a binary code, comprises a plurality of mechanical coding elements, such as rollers (40) (Fig. 2, not shown), which are movable between operative and inoperative positions, a plurality of devices, such as cams (51), each movable between two positions, one of which (Fig. 2, not shown) results in movement of a respective element (40), transmission members (56a)-(56f) associated with, and controlling the position of, respective devices (51), and normally effective for bringing about one of the two positions of the elements (40), and a plurality of settable members (1)-(32) engageable with combinations of the transmission members (56a)-(56f) for releasing respective devices (51), whereby the respective elements (40) will remain in the other of the two positions, whereby the setting of one of the settable members (1)-(32) will produce the setting of a combination of positions of the elements (40) according to a binary coding allocated to the said one settable member. The description is identical to that of the parent Specification, 1,206,272. but the claims differ.