baber/WOPTO huggingface dataset:
Patent GB-694410-A (GB)
Title: Improvements in and relating to diaphragm pumps
Inventor: WENANDER HARALD SVENNING
IPC: F23D5/00
Filed: 1951-12-12
Abstract: 694,410. Power-generating systems; vapour engine power plant. AKTIEBALAGET BONTHRON & EWING. Dec. 12, 1951, No. 29118/51. Class 122(iii) [Also in Group XXVIII] A diaphragm pump, e.g. for supplying oil to a burner, comprises a diaphragm 15, the pumping chamber 17 of which is connected to a valve box 20 immersed in the reservoir 19 and fitted with an air vessel 28 in the delivery to the burner 25. The diaphragm 15 is flexed by a fluctuating pressure in the chamber 14, the variations being produced in a closed circuit comprising a boiler 6 and condenser 10. The boiler 6 has attached to it a copper bar 7 that extends into the flame. of the burner 25 and evaporates a liquid, e.g. water, to raise the pressure in the circuit. After the liquid has been evaporated, it collects in the U-tube 11 and its quantity is sufficient to almost fill the right-hand limb of the U-tube. As the pressure falls at this stage, the movement of the diaphragm lifts the liquid to cause it to siphon down tube 12 to the boiler. In a modified construction, the inlet valve of the pump has a conical seat on a large diameter body formed with axial grooves so that when the diaphragm moves under reduced pressure the conical valve portion lifts and permits the pressure of the liquid to be pumped to act on the large diameter body and assist in moving the diaphragm before the grooves permit flow of fuel and thus the liquid is positively returned to the boiler which has an enlarged upper portion having a tangential pipe leading to the condenser. Fig. 5 shows an arrangement in which a chamber 60 is provided below the diaphragm 62 and when this chamber is filled with liquid and the pressure falls, the diaphragm moves downward until a magnet 77 attracts and lifts the valve 73 to permit the liquid to flow back to the boiler 57. When evaporation again commences, the diaphragm is lifted until a pin 75 on the valve engages a stop 72 when the valve is separated from the magnet 77 and closes.
Patent GB-280205-A (GB)
Title: Improvements in display signs
IPC: G09F7/02
Filed: 1927-11-01
Abstract: 280,205. Herrschaft, W. Nov. 5, 1926, [Convention date]. Signs; letters, numerals, and the like; looseletter and like signs.-Replaceable symbol-bearing elements in an illuminated sign are formed by dishing rectangular sheets of celluloid, paper, or like material to form tray-shaped units 37 in which the surplus material is crinkled to form the corners. The units 37 are attached to the sign by clips. &c. or by providing a rim 40 on the units which is gripped between two hinged plates 21, 28 provided with registering openings 22, 30. The units 37 project through the openings 22 to receive continuous or intermittent light from lamps in a casing 12 through the openings 30, which may be covered with removable coloured strips of gelatin or paper. The plate 28 is locked to the plate 21 by a longitudinal strip or by transverse rods engaging staples. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of paraffined paper, vellum, oil cloth, and thin leather to form the units 37. This subjectmatter does not appear in the Specification as accepted.
Patent GB-967568-A (GB)
Title: Fluorination of oxidic nuclear fuel
IPC: C01G43/06
Filed: 1962-07-30
Abstract: Uranium and plutonium are separated from fission products in irradiated uranium oxide nuclear fuel by contacting the fuel with an oxygen-fluorine gas mixture at 350-500 DEG  C., when uranium and plutonium are converted to volatile hexafluorides and fission products remain in the residue.  The gas mixture may also contain nitrogen.  Preferably the fuel is mixed with an inert granular material and the mixture fluidized with the gas.  Suitable inert materials are calcium fluoride, magnesium fluoride, and dense granular alumina.  Specification 845,655 is referred to.
Patent GB-1545246-A (GB)
Title: Thermoplastics resin extrudates for composite concrete floors
IPC: E04F15/12
Filed: 1976-07-13
Abstract: To solve the technical problem of simplifying the making and laying of mixed reinforced concrete floors with a saving in interposed brick elements, a composite joist is provided which consists of a profiled tube of rectangular section (1) provided with internal diagonally-positioned stiffening elements (2), and of a leaktight joint which is also profiled with a rectangular section (3), fixing means being provided for joining the profiled tube (1) to the joint (3), the said profiled tube (1) and the said joint (3) consisting of a drawn plastic material. <IMAGE>
Patent GB-1137017-A (GB)
Title: Framed rucksack
Inventor: GREGORY ALFRED GEORGE
IPC: A45F3/08
Filed: 1967-06-23
Abstract: 1,137,017. Pack-carrying harness. BROWN BEST & CO. Ltd. 23 June, 1967, No. 29225/67. Heading A3V. [Also in Division A4] A rucksack B provided with carrying top harness 15 connectible to sack bottom loops 19 may be used independently of a carrying frame F provided with harness 5 connected to an upper plastics tubular curved cross stay 4 and to bottom links 6 on the frame: The sack is secured to the frame by a top pocket 20 overlying the top 2 of the frame while the bottom of the sack rests on projecting frame 3 and is attached by spring clips 21.
Patent GB-875680-A (GB)
Title: Incubator
IPC: A01K41/00
Filed: 1958-09-12
Abstract: 875,680. Incubators. WORMGOOR-MANRHO, M. Sept. 12, 1958 [Oct. 1, 1957], No. 29293/58. Class 5(2). An incubator comprises a container 1 divided into two compartments by an intermediate ceiling 13, the lower compartment containing egg trays 2 stacked in vertical frames. A hollow tube 5 extending through the centre of the lower compartment is mounted by arms 6 and 7 on a rotary shaft 8 driven by a motor 16, and is provided on its outer wall with vanes 14. Fan blades 18 mounted on the upper end of the shaft 8 and housed within a casing 19, serve to draw air into the casing via the aperture in the top through which the shaft passes, the air being discharged through the bearing 10 to the upper compartment 20 and from thence through the tube 5 to the bottom of the lower compartment. The vanes 14 promote circulation of the air within the region of the egg trays, and a vent 22 in the member 13 allows air from the lower conpartment to escape to the compartment 20 where it may be mixed with in-coming air.
Patent GB-332466-A (GB)
Title: Process of producing faucets
IPC: F16K27/02
Filed: 1929-09-27
Abstract: 332,466. Perfection Faucet Mfg. Corporation, (Assignees of Schimmel, G.). Oct. 11, 1928, [Convention date]. Cocks.-The body 10, Fig. 6, of a draw-off cock is formed by pouring molten metal into a metal mould having three cores 60, 62, 63 of which 62 passes through the core 60 and is withdrawn first. The core 61 may be separate from or integral with the core 10. The central chamber 15, Fig. 1, of the cock, has four openings 20, 21, 13 and 28 and receives a member 40 having a valve seat 44, engaged by packing 45 of a valve 42, and an outlet 47, kept in register with the opening 20 by a key, not shown. The member 40 is clamped against packing 40<1> and a shoulder 17 by a screw-cap 30 in which is threaded a stem 39, having a removable handle 34, adapted to press down the valve, against the fluid pressure, to open it. The member 40 has a passage 51 to drain any leakage past the valve spindle 43. The opening 21 may be closed by inserting a convex disc 23, Fig. 4, of hard metal in an enlarged mouth 24 and then flattening whereby the edge is forced in to the metal of the body.
Patent GB-1429502-A (GB)
Title: Shaft furnace operating processes
IPC: C21B7/20
Filed: 1973-06-20
Abstract: 1429502 Charging blast furnaces DES ANCIENS ETABS PAUL WURTH SA 20 June 1973 [5 July 1972] 29352/73 Heading F4B In apparatus for charging a blast furnace from a pair of bins 4, 4<SP>1</SP> through a shoot 3 and a rotary distributor 2 supplying a constant quantity of material per unit time and adjustable in pitch angle relative to the furnace axis is disclosed in Specification 1,322,798 said pitch angle is varied to produce substantially even distribution of charge material over the burden. The bins 4, 4<SP>1</SP> are removable on rollers 9, 9<SP>1</SP> and 10, 10<SP>1</SP> running on rails 11 and detachable flange connections 23, 23<SP>1</SP> and 37, 37<SP>1</SP> enable rapid interchange of said bins. Shoots 12, 12<SP>1</SP> below said flanges 37, 37<SP>1</SP> and incorporating arcuate valves 13, 131 and flop valves 7<SP>1</SP>, 81 feed the shoot 3 which is closable by a slide valve 27. The bins 4, 4<SP>1</SP> are supported from rails 11 through load cells 17, 17<SP>1</SP> rigidly connected at points 18, 18<SP>1</SP> to said rails and having pivots 20, 20<SP>1</SP> engaging devices 19, 19<SP>1</SP> on the bins. The shoots 12, 12<SP>1</SP> have outer casings 30, 30<SP>1</SP> and inner linings 31, 31<SP>1</SP> the former being connected to the bins 4, 4<SP>1</SP> via bellows 22, 22<SP>1</SP> and to the shoot 3 by bellows 21, 21<SP>1</SP> enabling the load cells 17, 17<SP>1</SP> to carry solely the weight of the bins 4, 4<SP>1</SP>. The discharge of material from said bins is controlled by valves 13, 13<SP>1</SP>. The bins have upper flap valves 7, 8 and are charged from skips 5, 5<SP>1</SP> by displaceable feed hopper 6.
Patent GB-1507008-A (GB)
Title: Oxygen sensor with porous solid electrolyte layer
IPC: G01N27/409
Filed: 1976-07-14
Abstract: 1507008 Solid electrolyte oxygen sensor NISSAN MOTOR CO Ltd 14 July 1976 [18 July 1975] 29359/76 Heading G1N The solid electrolyte layer of a solid electrolyte oxygen sensor contains micropores of total volume 0.01-5% of the volume of the layer. The preferred pore volume is 0.01-0.1%. The solid electrolyte is preferably one of ZrO 2 - CaO, ZrO 2 -Y 2 O 3 , Bi 2 O 3 -Y 2 O 3  and Bi 2 O 3 - Nb 2  O 5  where the second oxide is a stabilizer and comprises 5-20 mole % of the electrolyte. The electrodes, one on each face of the electrolyte layer one preferably of Pt, Au or Ag or alloys thereof. The electrolyte layer is preferably in the form of a closed ended tube and is produced by press moulding and firing a powdered mixture of the oxides. The desired porosity is realised by controlling particle size and moulding pressure and/or firing temperatures.
Patent GB-858095-A (GB)
Title: Improvements in or relating to tap-changing switches
IPC: H01F29/04
Filed: 1957-09-19
Abstract: 858,095. Transformers. JANSEN, B. Sept. 19, 1957 [Sept. 28, 1956], No. 29509/57. Class 38 (2). A transformer on-load tap-changing arrangement includes a non-linear resistor for restricting the short-circuit current between taps. As contact K moves between contacts Ha, Hb connected to taps A, B of a transformer winding, it first engages contact ha, and then leaves contact Ha, at which it draws an arc. The load current then flows through resistor Ra having such a characteristic that the voltage across it varies inversely as the cube of the current, through it, and the voltage across Ra falls to a small value to reduce similarly the restriking voltage at contact Ha. When contact K connects contacts ha, hb the non-linear resistor Rb, which carries only the difference between half the load current and the circulating current has a high value to restrict the latter current, but as contacts K and ha open its value falls to reduce the restriking voltage. A resistance having a required characteristic may be selected by connecting a number of variable and linear resistors to form a network (Figs. 2, 3, 4, not shown). There may be further switching steps, each comprising a contact connected to a combination of linear and non-linear resistors (Fig. 5, not shown). To protect the switch against overloads due to short-circuits and lightning sparkgaps fa, fab, fb are arranged so that in series with the non-linear resistors Ra, Ra2 they shortcircuit the switch and linear resistors Ra2, Rb2, Fig. 6.
Patent GB-1133110-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: TICKLE COLIN JOHN FREDERICK
IPC: F16D65/12
Filed: 1966-06-30
Abstract: 1,133,110. Disc brakes. GIRLING Ltd. 26 May, 1967 [30 June, 1966], No. 29549/66. Heading F2E. A disc brake construction comprises an annular brake disc 1 which is secured at its inner margin to a mounting ring 4, the portion of which adjacent the brake disc 1 having a plurality of open-ended slots 8 defining between them resiliently flexible spokes or fingers to which the disc is secured. In the construction shown the mounting ring is provided with a flange 3 for securing purposes, the securing means 7 comprising "Huck" fasteners or nuts and bolts. The securing means project through oversized holes in the flange 3 and disc 1 and are permanently tensioned such that torque is transmitted from the disc to the ring 4 by frictional engagement therebetween. The ring 4 is connected to an axle 6 of a vehicle, particularly a rail vehicle.
Patent GB-988467-A (GB)
Title: A rotary ratio changer for transformers
IPC: H01H9/00
Filed: 1961-08-16
Abstract: 988,467. Regulating switches. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Aug. 16, 1961 [Aug. 19, 1960], No. 29568/61. Heading H2B. A rotary step-by-step switch for tapped transformers has fixed contacts, arranged in a circle and in several parallel planes, such as 2, 9, 16, any adjacent two of which are bridged by a rotatable double contact bridge system for each plane consisting of two contact bridges 19, 20, arranged in mirror image and urged towards one another by a plurality of helical springs 18 so as to be self-aligning, the two bridges 19, 20 being embraced by a rigid U-shaped clip 11 to form together with springs 18 a structural unit slidable along an insulating rod 12 acting as the rotary shaft, and the unit being located thereon only by the fixed contacts 2, 9, situated between the bridges 19, 20. Each contact bridge has an arcuate part 4 with enlarged ends 10, 13, engaging around the L-section rod 12 and a dished centre part 6 shaped to fit the rod 12 and clip 11, while recesses 5 in part 6 receive springs 18. The fixed contacts 2, 9, 16 are secured in insulating strips 3, 7, 14 by riveting such that an annular bead 15 is squeezed out into the strips as shown, thereby hindering slide discharges between the contacts.
Patent GB-1320348-A (GB)
Title: Compressors or pumps
IPC: F04B27/02
Filed: 1970-06-18
Abstract: 1320348 Pistons; piston-rods W SCHROEDER 18 June 1970 [3 March 1970] 29577/70 Heading F2T In a compressor or pump a piston 15 is made of plastics and an annular gap 21 is maintained between it and the cylinder 20. The piston has a deep groove 16 open to the compression space 17 and a metallic blade 18 which may be cast or injected into the piston, and is located on the outer periphery of the piston facing the compression zone 17. The piston and piston-rod 14 may be integral and the rod may be reinforced by a metal tube 14a. The piston may be of polyethylene, polypropylene, polybutene, P.T.F.E., polyamide, polyoxymethylene or polycarbonate.
Patent GB-210512-A (GB)
Title: Improvements in apparatus for heating water
IPC: F24H1/18
Filed: 1922-10-31
Abstract: 210,512. Allen. F. J. C. Oct. 31, 1922. Boilers.-Under the bottom plate 2 of a flameheated water-heater a disc 5 of corrodible material such as copper is placed so as to be above the flame, with the object of preventing the corrosion of the boiler itself. The disc mav be spaced from but attached to the bottom plate, or may be mounted as a trivet above the gas burner as shown. Specifications 152,721 and 180,710 are referred to.
Patent GB-1271513-A (GB)
Title: Electroconductive layers for use in recording materials
Inventor: TIMMENNAN DANIEL MAURICE
IPC: G03G5/14
Filed: 1968-06-21
Abstract: 1,271,513. Coated products. AGFA GEVAERT. 6 June, 1969 [21 June, 1968], No. 29801/68. Heading B2E. [Also in Divisions C3, G2 and H1] A recording material comprises a sheet or web of paper or of synthetic polymer, at least one surface of which is coated with a polymer layer having a surface resistivity not more than 2 x 10" ohms per sq cm at a relative humidity of 15%, the said polymer layer consisting of a major proportion of a water-insoluble polymer containing styrene units and from 17.5 to 35 mole % of styrene sulphonic acid units, the styrene and styrene sulphonic acid units being randomly distributed in the said polymer. Specified synthetic polymer sheets or webs are cellulose triacetate, polyethylene terephthalate, polycarbonates and polystyrene. The sheet or web may be provided with a known subbing layer on which the electroconductive polymer layer is coated. The polymer may also comprise 5 mole% of an alkyl acrylate. An electrophotographic recording element may be produced by applying a photoconductive layer to the electroconductive polymer layer. An electrographic recording element may be produced by applying an insulating layer to the polymer layer. The electroconductive polymer layer may serve as an antistatic layer in a photographic recording material, in which case a light-sensitive gelatin silver halide emulsion is applied to the sheet or web either on the surface opposite to the surface to which the polymer layer is applied or upon the polymer layer itself.
Patent GB-1082330-A (GB)
Title: Polyesterethers
Inventor: RASHBROOK ROBERT BENSON
IPC: C08L67/02
Filed: 1965-07-14
Abstract: Fibre- or film-forming polyesters in which at least 85% of the repeating units have the formulae <FORM:1082330/C3/1> where n is 2-10 have their tendency to oxidative degradation reduced by incorporating into them 0.1 to 5% by weight of an anti-oxidation of formula <FORM:1082330/C3/2> <FORM:1082330/C3/3> <FORM:1082330/C3/4> <FORM:1082330/C3/5> <FORM:1082330/C3/6> <FORM:1082330/C3/7> <FORM:1082330/C3/8> where + represents a tertiary butyl group. Any remaining repeating units may be those of adipic acid, terephthalic acid or 1:4 - bis-(hydroxymethyl)cyclohexane. The antioxidant may be incorporated at any stage during the preparation of the polyester or may be incorporated into the preformed polyester.  In examples ester-interchange was effected between the dimethyl ester of 1:2-bis(4-carboxyphenoxy)ethane in the presence of manganous acetate or calcium acetate, and the resulting glycol ester polycondensed in the presence of antimony trioxide, triphenyl phosphite and an antioxidant as specified above.
Patent GB-1209119-A (GB)
Title: Improvements relating to evaporators
Inventor: CORNILS CHRISTIE JOHN
IPC: B01D1/06
Filed: 1968-06-22
Abstract: 1,209,119. Evaporators, film-type. STEARNS-ROGER CORP. 22 June, 1968. No. 29892/68. Heading BIB. In an evaporator of the type wherein the liquid-to-be-evaporated flows in film-form down the interior surface of heated vertical tubes 18, the top of each tube is provided with an upstanding extension or weir 10 the upper edge of which has slots 14 with inturned louvres 16 shaped to direct the liquid through the slots onto the interior surface of the tube in a tangential direction. The liquid is introduced into the evaporator through conduit 42, flows from annular reservoir 44 into slots 14, and forms an ever-lengthening spiral on the inside walls of each tube to produce a continuous film. The curved section 26 of each louvre 16 gradually changes the direction of liquid flow from a primarily vertical direction to one that begins to approach horizontal so that the liquid enters V-shaped throat 28 tangentially and with insufficient turbulence to break up into spray. The weirs may be adapted to be inserted into the evaporator tubes, so that the annular shoulder 30 of a weir rests on the upper extremity of a tube. A drain hole may be provided just above the annular shoulder. The weirs may be made of metal or of plastics material.
Patent GB-262128-A (GB)
Title: Improvements in or relating to fire-arms and cartridges therefor
IPC: F42B5/26
Filed: 1926-11-26
Abstract: 262,128. DestrÚe, J. Nov. 27, 1925, [Convention date]. Breech actions, sliding breech-block.-The extractor is arranged to engage an internal lip 4 in the hollow base 3 of a cartridge case. The breechblock 5 may have a reduced part 7 fitting inside the gun barrel 8 and a tapered extension 10 fitting into the hollow 3 in the base of the cartridge. The extractor hook may be constituted by a lateral projection 12 on a firing pin 11 struck by a hammer 20. When the breech-block is retracted, the firing pin is moved sideways by a spring 21 to bring the hook 12 into engagement with the lip 4 of the cartridge case, which is then extracted by the engagement of a stop 17 on the breech-block with the tail 16 of the firing pin. A spring 22 between these parts afterwards retracts the firing pin. The cartridge magazine 19, Fig. 4, has projections 18 for ejecting the cartridge upwards when it is fully extracted; and the lower part of the breech-block 23 rides in the mouth of this magazine to feed a fresh cartridge into the gun barrel. In a modification, the firing pin is actuated by a coiled spring, and is moved sideways by a cam to cause engagement of the extracting hook with the cartridge.
Patent GB-889090-A (GB)
Title: Stabilised olefine polymers
IPC: C08K5/5398
Filed: 1960-08-31
Abstract: An ethylene homopolymer or a copolymer of ethylene with one of its homologues, the polymer having a crystallinity of at least 70%, is stabilized with a 2-hydroxy-4-octadecoxybenzophenone of formula <FORM:0889090/IV (a)/1> wherein R is an alkyl group of 18 carbon atoms.  The stabilizer may be incorporated into the polymer by milling or by the use of solvents such as toluene.  The products find application as moulded articles, films and fibres.  Specification 853,414 is referred to.
Patent GB-1190479-A (GB)
Title: Mechanism for Selecting Index Cards.
Inventor: VOSS HEINZ-HERMANN
IPC: G06K21/02
Filed: 1968-06-24
Abstract: 1,190,479. Card selecting devices. H.-H. VOSS. 24 June, 1968 [1 July, 1967], No. 30108/68. Heading G4M. In a device for selection from a stack of record cards in which an edge-punched code represents a number by the removal of lugs associated with groups of coding points 14-16 in a saddle attached to each card, two L-shaped rails 22, movable in slots 21 of each saddle 12, are connected by transverse bars 24 having slots 25, 26, 28 corresponding to the groups of coding points 14-16 and containing movable rollers 29-31 with rigidly held selector plates 32-34 that extend across the whole stack. A spring 18 is held in a slot 19 in the saddle of each card and engages a U-shaped rail 20. To select a particular card or cards, the rollers are moved in the slots and are pivoted so that their plates engage the appropriate lugs. Movement to the right by one digital period of the L-shaped rails carries non-selected cards against the restraining force of the springs 18, the selected cards being held because the lugs representing the appropriate digits of the number are missing in these cards and the plates therefore encounter no resistance. Members 35, 36 then move vertically to push the selected cards down guide walls 39, 40 to the floor of the container. A hook 45 carried on a conveyer belt 46 engages in a slit 49 to carry each selected card to its destination, which may be a reading station. In a modification (Fig. 5, not shown), selection of the required cards is by slides (62) after which the U-shaped rail 20 is pushed to the left thereby tightening all the springs 18. Only the springs of the selected cards are not compressed and the cards move away from a central L-shaped rail 22 where they can be pushed downwards by the sliding members 35, 36. In another modification (Fig. 8, not shown), the retaining member consists of an arm (66) moulded to the saddle 12 that bears against a star-shaped wheel such that rotation of the wheel moves the selected cards to a position where they can be separated as in the previous embodiments. In yet another modification (Fig. 9, not shown), the retention is by means of a permanent magnet (74) that is in contact with a polepiece (76) attached to each card. After selection the unwanted cards are detached and moved to the right. It is stated that, because the polepieces short-circuit the permanent magnet, the effect of the magnetic field on any magnetic recordings carried by the cards is eliminated or reduced.