baber/WOPTO huggingface dataset:
Patent GB-486553-A (GB)
Title: Improvements in or relating to chairs, stools and the like
IPC: A47B85/04
Filed: 1936-12-07
Abstract: 486,553. Convertible seats. STUTELY, F. A. Dec. 7, 1936, No. 33538. [Classes 52 (ii) and 52 (iii)] A chair or stool comprises a rigid frame and a removable and reversible seat bottom 14 the underside 12 of which is formed as a tray or table top, the seat frame 10 being arranged to encircle the support and locate a peripheral part 13 of the seat bottom 14 in either position. The frame may be formed with a recess 11 in which the seat bottom fits, or a flange on the latter may overlap the surface of the frame, an upstanding rim 16 forming a surround for the tray or table engaging within the frame. Handles 18 may be provided, and the seat bottom may have under-cut parts 15 to facilitate removal from the frame.
Patent GB-1502352-A (GB)
Title: Eaves trough and fascia structures
IPC: E04D13/064
Filed: 1975-08-12
Abstract: 1502352 Gutters ZMC INC 12 Aug 1975 [16 Sept 1974] 33570/75 Heading E1B A channel section metal gutter 12 for securing directly to the ends of rafters has an integral rearwardly opening channel 24 for receiving the front edge of a soffit member 18. The channel 24 may be formed at the front or back of the bottom wall 23 or half way up the rear wall of the gutter. The soffit is preferably corrugated. Closing members for the ends of the space between the soffit and eaves are provided.
Patent GB-1062266-A (GB)
Title: Reactive polymer and process of producing same
IPC: C08F212/08
Filed: 1963-08-26
Abstract: Styrene, cyclopentadiene and isoprene are copolymerized in an inert solvent in the presence of a Friedel-Crafts catalyst.  The styrene may contain alkyl-substituted styrenes, the cyclopentadiene alkyl-substituted cyclopentadienes and the isoprene piperylene.  The inert solvent may comprise inert hydrocarbons contained in the monomer fractions used for the polymerization. The Friedel-Craft catalyst may be boron trifluoride-diethyl ether complex.  Examples are given of the polymerization of mixtures of (1) styrene, cyclopentadiene and isoprene in xylene (11) styrene containing alphamethyl styrene, vinyl toluene and alkyl benzene, cyclopentadiene and isoprene containing 20% monoolefin, 49% paraffin and 8% piperylene in toluene (III) the same styrene and cyclopentadiene of (II) with isoprene in a mixed solvent of benzene, toluene and xylene and (IV) styrene containing 60% ethylbenzene, and 2% xylene with cyclopentadiene containing 27% methylcyclopentadiene and isoprene containing 58% paraffin, 19% monoolefin and 5% piperylene; all examples using boron-trifluoridediethyl ether complex as catalyst.
Patent GB-656537-A (GB)
Title: Method of preparing magnetic materials and product thereof
IPC: C04B35/26
Filed: 1948-12-31
Abstract: 656,537. Magnetic compositions. RADIO CORPORATION OF AMERICA. Dec. 31, 1948, No. 33692. Convention date, Dec. 31, 1947. Drawings to Specification. [Class 38 (ii)] A magnetic material is produced by mixing beryllium oxide (BeO) or a compound which is converted into it, with a ferrite or material which forms a ferrite containing at least one of the metals Mn, Zn, Mg, Ni, Cd, or Cu, and heating the mixture to at least 900‹ C. The heating, preferably between 900‹ and 1500‹ C., may take place in an oxidizing atmosphere (e.g. O or air) or a neutral atmosphere (e.g. helium), for a suitable period (e.g. 1 minute to 5 hours), after the mixture has been compressed into a suitable shape. The addition of the BeO improves the magnetic properties; e.g. it increases the permeability (Á) and the value of the product ÁQ, raises the Curie temperature, and alters the value of magnetostriction. The material which converts into the ferrite may contain any oxide, hydroxide or carbonate of iron, and the other constituents may be hydroxides, acetates, carbonates or oxides of the other metals. A lubricant, e.g. stearine or a micro-crystalline wax such as Carbowax, which is completely burnt away during heating, may be incorporated. The final material may be ternary, quaternary or pentanary ferrite. Manganese is added as MnO 2  but converted to MnO during heating. The properties of ferrites with and without the BeO are given for comparison. The addition of CaO, BaO, TiO 2 , ZrO 2 , ThO 2 , Sb 2 O 3'  Al 2 O 3 , SiO 2 , SnO, B 2 O 3  or CR 2 O 3  is not found to be of use.
Patent GB-830372-A (GB)
Title: Improvements in or relating to record card controlled apparatus
Inventor: WOODHEAD JAMES
Filed: 1956-12-21
Abstract: 830,372. Sensing record cards. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Nov. 4,1957 [Dec. 21, 1956], No. 33862/57. Divided out of 830,371. Class 106 (1). [Also in Group XL (b)] In a data sensing device using photo-electric devices producing output signals representing data sensed, the photo-cells have applied to them a low " stand-by " voltage until a record is in position for sensing, the applied voltage then being increased to a working value. Registering means are provided to receive the output signals, the arrangement being such that the register only responds to the output signals of the photo-cells when on the increased voltage. The record card or tape having data marks or perforations is fed column-by-column past a line of photo-cells 106, being mounted for the purpose on a carriage controlled to move in steps, as described in Specification 566,964. When a card is present in the carriage a card lever closes contacts CLC, Fig. 2, and energizes a magnet 113 which opens a shutter 115, Fig. 1, normally preventing light reaching the photocells when no card is present. In Fig. 2, line 2 is neutral, line 1 is negative and line 3 is positive. The stand-by voltage is applied to the photocells 106 by connection between lines 3 and 2, a diode 4 being used to prevent reverse currents when the full working voltage is applied. At each closure of start contacts ST a sensing operation is effected, the device passing through one cycle and stepping the card to the next column. Relay R2 being picked by contacts ST closes contacts R2b to energize the shutter magnet 113 and allow light to fall on the photo-cells. In this movement the shutter closes contacts 121. The output from a photo-cell is insufficient to be effective until contacts R3a close to connect the cells to line 1. Relay R3 is energized as each successive column arrives at the sensing position, e.g. by mechanical operation of contacts SC from the rack movement, thereby applying the working voltage to the photo-cells. Those cells which correspond to data marks or holes then give an output sufficient to fire thyratrons VR-V9 and energize relays RX-R9. Punch magnets may replace these relays. Contacts SC open at the end of the sensing cycle and deenergize the thyratrons and the relay coils. Specification 362,529 also is referred to.
Patent GB-933728-A (GB)
Title: Preparation of dextrins
IPC: C12P19/14
Filed: 1960-10-03
Abstract: A dextrin-containing composition may be obtained by adding a starch degrading enzyme to a starch which is preferably potato starch in water which is at a temperature above the gelatinization temperature of the starch and above the thermal inactivation temperature of the enzyme.  A temperature of 70 DEG -90 DEG C. may be used with fungus or pancreas amylase and a temperature of 95 DEG C. with bacterial amylase. The enzyme may be premixed with 10% of the starch and then this mixture and the remaining starch added to the heated water. Wetting agents, preserving agents and adhesives may also be added.ALSO:Dextrins are obtained by adding a starch degrading enzyme to a starch which is preferably potato starch in water which is at a temperature above the gelatinization temperature of the starch and above the thermal inactivation temperature of the enzyme.  A temperature of 70 DEG -90 DEG C. may be used with fungus or pancreas amylase and a temperature of 95 DEG C. with bacterial amylase.  The enzyme may be premixed with 10% of the starch and then this mixture and the remaining starch added to the heated water. Wetting agents, preserving agents and adhesives may also be added.
Patent GB-1262030-A (GB)
Title: Bicomponent conjugate filament
IPC: D01F8/04
Filed: 1970-07-13
Abstract: 1,262,030. Conjugate filaments. MONSANTO CO. 13 July, 1970 [14 July, 1969], No. 33884/70. Heading B5B. A helically crimped bi-component side-by-side or core-in-sheath, conjugate filament comprises a melt-spinnable fibre-forming polycarbonate component having a melting point in the range 180‹ to 250‹ C. and an elastomeric polyurethane component melt-spinnable at a temperature between 205‹ and 250‹ C. and containing a block polyurethane segment melting between 200‹C. and 235‹ C. Preferably the polycarbonate is a polycarbonate of a bis(hydroxyaryl) compound having at least 80% by weight of a compound having recurring units of the general formula where X is a divalent radical suitably of formula where R and R<SP>1</SP> are hydrogen, lower alkyl (C 1  to C 7 ) or phenyl groups, preferably R<SP>1</SP>=R=CH 3 . The polyurethane component which may be a polyester-urethane, suitably one derived from a polyester of molecular weight between 1000 and 3000, or a polyether-urethane derived from a polyether of molecular weight 800 to 3000, preferably comprises between 20 and 80% by weight of the final filament structure. Suitable polyesters are derived by the condensation of adipic, glutaric or sebacic acids on caprolactone with an excess of a glycol, preferably 1,4- butanediol. Suitable polyethers are poly(1,4- oxybutylene) glycol and poly(1,2-oxypropylene)- glycol. The polyurethane may be prepared by reacting a polyether or a polyester with a diisocyanate, preferably 4,4<SP>1</SP>-diphenylmethane diisocyanate, in the presence of enough of a chainextending glycol, suitably 1,4-bis(#-hydroxyethoxy)benzene or 1,4-butanediol, to give a total NCO/OH ratio in the range 1À01-1À04 : 1. Filaments produced according to the invention are cold or hot-stretched to increase their molecular orientation and the stretching force is then released to allow the helical crimp to develop. They may also be subjected to a postdrawing heat treatment wherein the filaments are heated under low tension and then cooled. In examples this latter treatment is carried out at 140‹ C.
Patent GB-427660-A (GB)
Title: Improvements in roller pan mixers for mixing concrete and other materials
IPC: B28C5/16
Filed: 1933-12-06
Abstract: 427,660. Mixing-machines. HARRISON, J. C., Ashover, Selbourne Avenue, HARRISON, A., Elmstead, Lyndhurst Drive, and HARRISON, N., 18, Killowen Street, all in Low Fell, Gateshead-on-Tyne. Dec. 6, 1933, Nos. 34318/33 and 8204/34. [Class 86] In a roller pan mixing-machine the rollers are mounted on the ends of a spindle which is cranked or otherwise formed in the centre so as to clear the vertical driving-shaft. In the form shown, the roller spindles 8 are mounted in an inverted U-shaped structure 5 which rides between the vertical walls of a casting 4 on the driving-shaft 2, the walls being bridged over by a cap 12 between which and the structure 5 are springs. In other forms, the structure is cranked to one side, or the spindle is in a single piece formed with a central aperture. The spindles 8 may be slightly cranked in a horizontal plane. Specification 278,236, [Class 59], is referred to.
Patent GB-665444-A (GB)
Title: Improvements in the building of hulls of ships by welding metal plates
IPC: B63B3/14
Filed: 1947-12-29
Abstract: 665,444. Ship plating. ALLEGRO, G. Dec. 29, 1947 [Aug. 3, 1945], No. 34445/47. Class 113 (ii). In a method of welding hull plates 3, 4, the horizontal edges 1, 2, of the plates are welded together and with the external surface of substantially T-sectioned longitudinal elements 5, and the longitudinal edges of the flanges of the longitudinal elements are also welded at 9. 10, to the internal surfaces of the plates. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 665,540. This subject-matter does not appear in the Specification as accepted.
Patent GB-1523893-A (GB)
Title: Pump with axial flow inducer
IPC: B01F27/71
Filed: 1975-08-20
Abstract: 1523893 Centrifugal pumps NIKKISO CO Ltd 20 Aug 1975 [13 March 1975 (3)] 34529/75 Heading F1C In a pump comprising an impeller preceded by an axial-flow inducer coaxial with the impeller, axial counterflows in the fluid flowing from the pump inlet to the impeller are confined to the downstream side of the inlet so as to reduce noise caused by such counterflows. The first part 16a, Fig. 6, of the inducer is of smaller pitch than the second part 16b whereby fluid flowing back from the main impeller 14 is recirculated through the second part. An annular barrier 22 may be provided to cause fluid flowing back past the first inducer part 16a to be recirculated via the inducer. The axial distance between the inducer parts 16a, 16b, is equal to 0À85 to 0À95 times the inducer diameter. In the pump shown in Fig. 7, the inducer parts differ in diameter, the diameter of the part 16b being 0À9 to 0À97 times the diameter of the part 16a. As before fluid flowing back from the main impeller 14 is recirculated through the inducer part 16b. A sleeve 26 may be secured to the front end of the inducer part 16a, return flow originating in front of the inducer being deflected as shown by an annular flange 28. The part 16b of smaller diameter may be omitted, Figs. 1-3 (not shown).
Patent GB-1385717-A (GB)
Title: Apparatus for the rapid cooling of products
IPC: F25D3/11
Filed: 1972-07-24
Abstract: 1385717 Endless conveyers ETABS BERRY and L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 24 July 1972 [27 July 1971] 34583/72 Heading B8A [Also in Division F4] Apparatus for the rapid cooling of peas or beans 13 conveyed in a layer on the upper side of at least one endless gas-permeable conveyer belt 1, includes a metal sheet 5 which supports at least a part of the upper side of the conveyer. The metal sheet is corrugated in a direction parallel to the direction of movement of the belt, and is perforated at the peaks of some of the corrugations.
Patent GB-429509-A (GB)
Title: Improvements relating to toy building blocks
IPC: A63H33/04
Filed: 1933-12-08
Abstract: 429,509. Toy building - blocks. HUILLARD, P. E., 25, Quai Voltaire, Paris. Dec. 8, 1933, No. 34637. Convention date, Dec. 9, 1932. [Class 132 (iii)] Toy building-blocks particularly for architectural structures and of cubic, rectangular, parallelopiped, prismatic, cylindrical, conical, spherical or pyramidal form or of any of these forms cut by a plane or planes are made by dissecting a cube or a volume inscribed in the cube or a multiple or sub-multiple of the cube along planes parallel with the faces of the cube, planes passing through the axes joining the centres of opposite faces of the cube, and planes inclined relatively to the faces of the cube so that the dimensions of the separate blocks are multiples of one another. Several of the different shaped building blocks may be combined to form a single building block. The blocks may be composed of separate parts of cardboard subsequently juxtaposed. Figs. 6, 14, 15 and 27 show the origin of some of the blocks, and Fig. 34 shows an example of the use of blocks formed according to the principle described.
Patent GB-986374-A (GB)
Title: Improvements in space heaters
IPC: H05B3/34
Filed: 1960-10-10
Abstract: 986,374. Laminates and laminating. B. G. MARTINDALE. Oct. 2, 1961 [Oct. 10, 1960], No. 34670/60. Heading B5N. [Also in Division H5] Electrical space heaters (Fig. 1, not shown, see Division H5) include a resistance wire sandwiched between two layers bonded together by heat and pressure, each layer consisting of glass cloth, paper, or woven material, coated on both sides with P.V.C., and have a pair of lips, formed by an unbanded strip of the two layers which is left at each of a pair of opposite edges of the heater, whereby access may be gained to the ends of the wires by parting the lips. The heaters are manufactured by passing the two P.V.C. coated layers along paths 1a 2a, past radiant heaters 40 and between nip rollers 28, 29, wires 3 being introduced between the layers from a series of guides 52 mounted on a member which reciprocates to produce a zig-zag disposition of the incorporated wires (Fig. 3, not shown). Heaters 40, and roller 28, are periodically and momentarily swung away by rams 39 and 45 to leave unamalgamated sections which are subsequently cut through to provide separate heaters with lipped edges (Fig. 2, not shown). Specification 882,419 is referred to.
Patent GB-603630-A (GB)
Title: Improvements in or relating to testing apparatus
IPC: G01N33/44
Filed: 1945-12-21
Abstract: 603,630. Refrigerators. FIRESTONE TIRE & RUBBER CO. Dec. 21, 1945, No. 34707. Convention date, Dec. 30, 1944. [Class 29] [Also in Group XIX] Apparatus for testing samples of an elastomer (see Group XIX) is associated with a refrigerator. The samples are placed on a turntable 18 which may be rotated by an electric motor (not shown) by means of a shaft 25 which is mounted in bearings at either end of an aperture in the refrigerator wall, the clearance between the shaft and the wall permitting moisture to condense without affecting the driving of the shaft. A metal detent 43 may be operated from outside the refrigerator to prevent rotation of the turntable by means of an enlarged portion of low conductivity to which the metal portion is secured, the whole being mounted in a sleeve with a space for moisture condensation. A loading rod 49, of a material having a low conductivity, slides in a sleeve 48 of similar material mounted in the refrigerator wall and the central portion of the loading rod has a reduced cross section to provide a space for moisture condensation. The temperature is maintained uniform by means of a motor-driven fan 75, and may be increased rapidly by means of electric heaters 80. A thermometer (not shown) may be read through a heat insulating window in the refrigerator door.
Patent GB-996600-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B3/02
Filed: 1961-09-28
Abstract: 996,600. Bristle fixing. W. WESSEL. Sept. 28, 1961 [Oct. 31, 1960], No. 34793/61. Heading A4K. In making a brush for attachment to a base bundles of bristles 3 are inserted into holes 2 in the top of a soft body 1 via the ends of the holes at the surface from which the bristles are to project, the holes being widened inwardly and the bundles secured by a plastic or like material capable of setting or hardening in the hole to form a plug 4. The holes may extend through the body 1 or they may be blind holes. In a body having blind holes, Fig. 3e, the securing material is introduced into the holes before inserting the bristles. In a body having through-holes, the securing material is introduced subsequently from the rear. Fig. 3d shows connecting grooves 2b provided between pairs of holes on the rear face of the brush body, so that the securing material 4 fills the grooves to form a connecting rear anchor. Various blind and through-hole formations are described. The bundles of bristles may be previously bound or unbound before insertion.
Patent GB-490458-A (GB)
Title: Improvements in steam or other vapour generators
IPC: F22B37/70
Filed: 1936-12-16
Abstract: 490,458. Forced - flow steam boilers. BABCOCK & WILCOX, Ltd. Dec. 18, 1936, No. 34797. Convention date, Dec. 18, 1935. [Class 123 (ii)] In a forced-flow boiler having a number of long, small bore parallel connected tubes A ... H supplied with feed from a distributer 204 through resistors 205 which ensure constant proportional distribution to the tubes, the mixture of water and steam from a feed heater 202 is passed through an air heater 207, before entering the distributer, to condense the steam, which would prevent the proper distribution of the feed. The vaporizing tubes may be arranged as described in Specification 490,457 to form a U-shaped gas passage, a burner being provided at the top of one limb and the gases passing upwards over vaporizing and feedheating tubes in the other limb. The vaporizing tubes discharge tangentially into a separator 232, the excess water from which is used to heat combustion air in a primary heated 206 and to heat the feedwater in a direct contact heater 354. The feed pump 289 is driven by a turbine 287, which also drives the fuel and air pumps 290, 288. Each resistor consists of a long smallbore tube of greater flow resistance than the vaporizing tube to which it is connected.
Patent GB-376634-A (GB)
Title: Elastic seaplane undercarriages
IPC: B64C35/00
Filed: 1931-12-16
Abstract: 376,634. Arrangement of hydrovanes on aircraft. POTEZ, H. C. A., MÚaulte, Somme, France. Dec. 16, 1931, No. 34826. Convention date, July 22. [Class 4.] A seaplane undercarriage comprises wing-like hydrovane surfaces pivoted about longitudinal axes to the seaplane body and resiliently supported toward their outer ends. Hydrovanes 2, Figs. 1 and 3, of aerofoil section are hinged to the hull 1 of a flying boat at points a, b. Shock absorbing struts 3 are connected to the vanes 2 at c and wings at d. Balance floats 4 are carried by the struts. When planing the hull rides upon the vanes 2 and a rearwardly disposed step 5. The vanes 2 are stated to act as lifting surfaces in flight.
Patent GB-411849-A (GB)
Title: Improvements in holders for electric incandescent lamps
IPC: H01R33/02
Filed: 1932-12-08
Abstract: 411,849. Electric-lamp holders. GROTE, E. R., c/o British Electric Lamps, Ltd., Spencer Hill Road, Wimbledon, London. Dec. 8, 1932, No. 34829. [Class 39 (ii).] Holders for tubular electric incandescent lamps, of the kind comprising a casing formed in one or more portions of insulating material, preferably a synthetic resin, forming a complete encasement or shell in which the only apertures are those necessary to admit the lamp caps and the conductors, are arranged in spaced relationship on a support such as a reflector, with the portions of the conductors extending between the holders covered with insulating material or sleeves to form a close fit within their receiving apertures, which may be sealed in a watertight manner with cement. As shown in Figs. 3 and 7 the holder b comprises upper and lower portions b<2>, b<3> which may be secured together within a channel a<1> in the reflector a by screws passing through apertures h into the channel a<1>. Preferably the holders are mounted so that lamp terminals of one polarity only enter any one holder, one line conductor such as l<1> passing straight through within co-operating semi-cylindrical grooves in the upper and lower portions of the holder, while the other conductor l is bared along the length passing chord-wise within socket apertures f in the upper member b<2>. A length of spring wire m arranged parallel to the bared conductor is located within a groove and extends chord-wise on the opposite sides of the apertures f, these parallel wires formed resilient means for gripping and making contact with caps d projecting laterally from the tubular lamp e, the caps preferably being formed with peripheral grooves to improve the contact. A metal cover plate p of U-shaped cross-section may be secured over the mouldings by the screws which hold them within the channel a<1>. The holders b<1>, Fig. 2, forming the end of a series are formed with only one socket f, and may be formed with end apertures to receive hollow pins of a plug which may be inserted therein to connect the holders to the mains. Specifications 304,882, 336,418, [both in Class 39 (ii)], and 411,957 are referred to.
Patent GB-1101288-A (GB)
Title: Improvements in ion source for a mass spectrometer
IPC: H01J49/10
Filed: 1966-08-03
Abstract: 1,101,288. Ion sources. GENERAL ELECTRIC CO. 3 Aug., 1966 [10 Aug., 1965], No. 34848/66. Heading HID. A mass spectrometer ion source comprises a hollow cylindrical permanent magnet 14 at a high positive potential, an electron-emitting filament 11 protruding at its apex 12 into the magnet and held at a relatively low positive potential, and a pair of end plates 16, 17 held at an intermediate positive potential. Also provided are focus electrodes 19, 20 and collimator electrodes 23, 24.