baber/WOPTO huggingface dataset:
Patent GB-1152096-A (GB)
Title: Container having a Detachable Lid
Inventor: DAVIES SYDNEY WALTER VIVIAN
IPC: B65D50/04
Filed: 1967-02-24
Abstract: 1,152,096. Boxes; portable containers; container closures. S. W. V. DAVIES. 1 Feb., 1968 [24 Feb., 1967], No. 8868/67. Headings B8D, B8P and B8T. A resiliently deformable box body comprises diametrically opposed flat wall sections 1, separated by part-cylindrical wall sections 3, the latter having radially outward extending lips 2, to engage a lip (7), Fig. 3 (not shown); inside a resiliently deformable lid 5 &c. By simultaneously squeezing the flat wall sections 1 and the lid, the latter can be removed. The box-like body and lid can be made resilient by reinforcement with metal spring strips, or may be made of resilient plastics.
Patent GB-324286-A (GB)
Title: Improvements in hydro-turbine pump
IPC: F04C19/00
Filed: 1929-03-19
Abstract: 324,286. Jennings, I. C. March 19, 1929. Centrifugal pumps; casings.-A liquid-ring pump has one or more annular ribs 20 in the casing 12 for the purpose of eliminating axial eddy currents. Corresponding ribs 21 may be provided on the rotor. The inner walls 25 of the casing, and the rotor, are conical and are ported for inlet and outlet.
Patent GB-1140042-A (GB)
Title: A method for the manufacture of an exchanger packing intended for the exchange of heat and/or moisture between two fluids one at least of which is a gas
IPC: F24F3/14
Filed: 1966-03-01
Abstract: 1,140,042. Laminated heat exchanger packing. C. G. MUNTERS. 1 March, 1966 [2 March, 1965], No. 8910/66. Heading B5N. [Also in Division F4] A method of manufacturing an exchanger packing intended for the exchange of heat and/or moisture between two fluids at least one of which is a gas and which packing is composed of layers of asbestos fibre which bear against one another at mutually spaced places and form therebetween passageways open from end to end and extending through the packing and the strength of which layers is increased by one or more inorganic substances, is characterized in that the substance is, or the substances are, heated to a temperature which is higher than the critical temperature of the asbestos so that the substance or substances forms or form a reinforcing skeleton for the layers, after cooling. The packings may be formed by forming some of the layers with corrugations or protuberances and joining them to similar and/or plain layers by a binding agent, e.g. water-glass. In one embodiment a plain layer and a corrugated layer are joined and the assembly so formed coiled. The inorganic substance or substances used are preferably applied to the asbestos layers in an aqueous solution or dispersion. In one embodiment aluminium chloride and sodium silicate, which are soluble in water, and which together form an insoluble deposit, of aluminium silicate, are applied to the asbestos layers and heated to a temperature of 800- 1100 C. which melts the deposit to give a melt of aluminium and silicon oxide. In a second embodiment a dispersion of a refractory cement, e.g. Silicit, slurried in water is applied to the layers and after evaporation of the liquid and heating to about 1000 C. the cement forms a thin coating on the asbestos fibres. The packings produced by the method of the invention are heat resistant and non-hygroscopic and may be used in cooling towers or gas turbines.
Patent GB-711404-A (GB)
Title: Improvements relating to the production of sized paper
IPC: D21H17/07
Filed: 1952-04-08
Abstract: Higher fatty acid-alkylenepolyamine condensation products in the form of water-soluble amide salts are made by reacting, e.g. 2 to 4 mols. of one or more C14-C22 fatty acids with one mol. of one or more alkylenepolyamines of the formula H2N(CnH2n.NH)xH, where a  = on or more. As fatty acids may be used those of cottonseed oil, coconut oil, tallow, or lard &c. which may be hydrogenated before use and preferably has 16 to 18 carbon atoms.  Solvents such as xylene or toluene may be present.  The products may be further condensed with epichlorhydrin, preferably in the presence of polar solvents.  In examples: (1) tetraethylenepentamine and hydrogenated tallow are heated at 200 DEG  C. for 8 hours whilst a stream of nitrogen is continuously passed through, the wax thus obtained is melted and glacial acetic acid stirred in; (3) stearic acid and tetraethylene-pentamine are heated at 165 DEG  to 180 DEG  C. in an atmosphere of nitrogen until water evolution stops, heated at 200 DEG C. for 4 hours, mixed with epichlorhydrin, suspended in ethanol, boiled under reflux for 4 hours and stripped by heating at 1 mm. mercury pressure.  Other examples use diethylamine triamine as the polyamine.  The products are used in sizing paper.
Patent GB-747708-A (GB)
Title: Improvements in or relating to devices utilising the hall effect and more particularly in magnetometers
IPC: G01R33/07
Filed: 1954-03-26
Abstract: 747,708. Semi-conductor devices; magnetometers. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 26,1954 [March 28, 1953], No. 8996/54. Class 37. In apparatus for measuring the strength of a magnetic field H (Fig. 3c), by utilization of the Hall effect in a semi-conductor body 1 to produce a potential difference between probes a, b, the electrodes for the excitation current J are duplicated at one or both ends to enable adjustment to be made to the direction of current flow through the semi-conductor to ensure that the probes a, b are correctly located with respect to the equipotential surfaces in the semi-conductor body. As shown, the duplicated electrodes 7, 8 and 10A, 11A are interconnected by potentiometers 9, 12, respectively, whose sliders are joined to the excitation current potential source. The duplicated electrodes may be produced by soldering or metallization on the same end face, or on opposite faces adjacent to the end face, or the end face may be tapered with the electrodes on the slanting face. The meters 2, 3 may be replaced by the two coils of a ratio meter for obtaining the ratio V/J, and the excitation current may be D.C. or A.C.
Patent GB-778877-A (GB)
Title: Improvements in or relating to forceps and the like
IPC: A61B19/00
Filed: 1955-03-28
Abstract: 778,877. Tweezers. WITNEY, L. E. March 28, 1956 [March 28, 1955], No. 8997/55. Class 61 [Also in Groups VI and XI] A pair of tweezers comprises ribbed blades 4 secured by means of an encircling band 6, to a casing member 1 housing an electric torch and battery having a lens 2 to direct the beam of light on to the tips of the blades, the closure 3 serving as a switch. In a modification, the torch is connected by a flex to a remote source of current.
Patent GB-227326-A (GB)
Title: Improvements relating to fire doors for stoves and the like
IPC: F23M7/00
Filed: 1924-04-09
Abstract: 227,326. Rõsõnen, I. April 0, 1924. Doors; air, supplying for combustion.-A stove front is fitted with outer and inner hinged firedoors 1, 2 and a hinged damper door 3; air, entering through the latter, passes upwardly into a hollow door-frame d from which it enters, through apertures b, the space between the doors 1, 2, being finally delivered to the firebox through perforations c in the inner door 2. The damper door 3 is provided with a handle 4 carrying a latch 5 which is adapted to bear against the inner face of the stove front and retain the door 3 in its closed position.
Patent GB-804782-A (GB)
Title: Improvements relating to the production of ion-exchange resins
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: C08F8/00
Filed: 1955-03-29
Abstract: Ion-exchange resins are produced by copolymerizing a compound containing one polymerizable double bond with a cross-linking agent comprising a ketone containing two polymerizable double bonds, each being part of a conjugated system with the carbonyl group, and introducing ion-exchange groups into the cross-linked polymer.  The ketone may be divinyl, vinyl isopropenyl or diisopropenyl ketone. The ion-exchange groups may be introduced by an aftertreatment or by polymerizing compounds containing one polymerizable double bond and an ion-exchange group.  In examples: (1) an anion-exchange resin is prepared by copolymerizing 91 per cent styrene and 9 per cent divinyl ketone by suspension polymerization, using azo-bis-isobutyronitrile as catalyst, ion-exchange groups then being introduced into the polymer by haloalkylation and amination: (2) a cation-exchange resin is prepared by sulphonating the copolymer prepared in Example (1); (3) a cation-exchange resin is prepared by copolymerizing divinyl ketone and glacial methacrylic acid in the presence of benzoyl peroxide catalyst; (4) an anion-exchange resin is prepared by copolymerizing b -diethylaminoethyl methacrylate and divinyl ketone in the presence of azo-bis-isobutyronitrile catalyst. Specifications 694,778, 774,386 and 748,234 are referred to.  The Provisional Specification refers also to Specification 577,707, [Group IV].
Patent GB-211033-A (GB)
Title: Improvements in the destructive distillation of shale and the like to obtain oil therefrom
IPC: C10G1/02
Filed: 1923-04-03
Abstract: 211,033. Dicker, S. G. S., (S.E. Co.). April 3, 1923. Coking processes.-In the destructive distillation of oil-shales and the like in a closed chamber by means of a downwardly progressing zone of combustion, the combustion is controlled by addition to the air of a regulated amount of diluent gas or gases other than steam. The chamber 1 is provided at the top with a pipe 3 for admission of air, pipes 3' and 5 serving to supply diluent gases such as combustion gases from the process and steam when required. As the combustion zone travels down the chamber, oils are distilled off and are collected in a receptacle 11 uncondensed vapours passing through a condenser 13 the condensates being pumped into containers 16. The pump 14 serves to draw the air through the charge and by regulating the feed of the air and of the diluent gases, which are preferably the products of combustion from the condenser, the progress of the combustion zone may be controlled. The grate may be of the kind described in Specification 204,335.
Patent GB-635880-A (GB)
Title: Improvements relating to the manufacturing of tea cups and the like
IPC: B28B11/02
Filed: 1948-04-01
Abstract: 635,880. Attaching handles to cups. MIDWINTER, Ltd., W. R., and LATHAM, A. G. April 1, 1948, No. 9183. [Class 87 (i)] A handle d to be attached to a cup a on a support b is raised into engagement therewith by pneumatic or hydraulic means h acting through a cylinder f against a springs.
Patent GB-1032132-A (GB)
Title: Improvements in or relating to the diffusion purification of gases
IPC: B01D53/22
Filed: 1964-03-04
Abstract: 1,032,132. Hydrogen diffusion cells. ENGELHARD INDUSTRIES Inc. March 4, 1964 [March 7, 1963], No. 9266/64. Heading B1L. An apparatus for separating hydrogen from a gas mixture by diffusion through a non-porous H 2 - permeable membrane comprises an inlet chamber separated from a diffused gas outlet chamber by the membrane, with an inlet and an outlet for non- permeated gas to the first chamber and an outlet for diffused H 2  to the second chamber and wherein baffle means are provided in the first chamber to direct the gas flow against the membrane. Suitable materials for the membrane are elementary Pt, Pd or alloys thereof with Ag, Au, B, Rh and Ru including tertiary and tenary alloys thereof. In a specific embodiment, Fig. 2, hydrogen-containing gas enters diffusion zone 21 through inlet 27 in stainless steel ring 28. Hydrogen passes through membrane 23 into zone 22 and leaves by outlet 32 in stainless steel ring 31 while unpermeated gas is lead off at valve 29. The end plates 24 and 26 we bolted together and hold the rings in a gas tight fashion by copper gaskets 33, 33a, 34 and 34a, gasket 34a having a tapered edge which prevents rupture of the membrane. Resting on gasket 34 is a baffle plate 36 having holes punched in one side of each corrugation and of such dimensions that it forces the inflowing gas through the gap 37 and thus ensures thorough mixing of the gas and also contact with the membrane. In another specific embodiment, Fig. 4, a series of diffusion cells are mounted one above the other with two membranes 52 and 53 held by stainless steel rings 54 with a gasket 59 e.g. of Cu, Ag or Au. Hydrogen containing gas enters at 56 and moves round baffle 58 which has openings and deflectors, 44, 46, 45 and 47 which direct the gas against the membrane. Since the diffusion cells may be circular in cross-section, the holes in the plate may be smaller at the centre of the baffle but larger at the periphery. The baffles may be e.g. of stainless steel, copper, aluminium, magnesium, carbon, alumina or a ceramic. Supports for the membrane of the type disclosed and claimed in Specification 1,032,131 may be used.
Patent GB-140231-A (GB)
Title: Improvements in optical range finders of telemeters
IPC: G01C3/10
Filed: 1919-04-12
Abstract: 140,231. Michelson, A. A. April 12, 1919. Range-finders.-In range-finders of the shorthome-base type, the image-forming system comprises lenses O<1>, O<2> forming inverted images at points L<1>, L<2>, and lenses O<3>, O<4> forming erect images in the focus of the eye-piece E. Projecting- lenses are inserted at L<1>, L<2> and, in order to effect halving of the images at these points, these lenses may be half covered over, or they may be cut away along their diameters. The usual ocular reflectors P<1>, P<2> may be replaced by a compound prism S<1>, S<2>, Fig. 3, having a totally-reflecting surface b and a semi-transparent surface a. The ocular system shown in Fig. 2 for use in a stereoscopic instrument comprises a compound prism S<1>, S<2>, S<3>, S<4> having totally-reflecting surfaces b, c, d, c and a semi-transparent surface a. With this arrangement, a compound image is formed in each eyepiece., the upper half-images belonging to one end, and the lower half-images to the other end, of the instrument. Optical-squares T<1>, T<2>, pivoted at t<1>, t<2>, are provided for initial adjustment, in conjunction with an illuminated mark on a transparent renector G<2> in the eyepiece. Reference has been directed by the Comptroller to Specification 145,094.
Patent GB-431281-A (GB)
Title: Improvements in or relating to the control of vapour arc rectifiers
IPC: H02M7/15
Filed: 1934-03-26
Abstract: 431,281. Rectifying alternating current. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, CALVERLEY, J. E., 58, Crescent Road, Rowley Park, and NEWMAN, S. E., 45, Rowley Grove, both in Stafford. March 26, 1934, No. 9436. [Class 38 (ii)] In a polyphase arc rectifier the ignition timing is automatically advanced or retarded in accordance with voltage variations on the A.C. side so as to maintain the output voltage at some value determined by manual regulation. In the arrangement shown, ignition at the anodes of the rectifier 1 is determined by grid potentials derived from a supply 6 through a rotary distrubuter 7 driven by a synchronous motor 8 having angularly displaced field windings 8<b>, 8<c> producing a resultant field the position of which determines the timing of the ignition. Current in the winding 8<b> is manually controlled by a resistance 10, and current in the winding 8<c> is determined by the voltage on the A.C. side of the rectifier which operates through a transformer 12 and auxiliary rectifiers 11. Manual control of the output voltage may also be effected by angular displacement of the non-rotary contacts of the distributer. The distributer and battery 6 may be replaced by a dynamo-electric impulse generator in which case variation of the ignition timing may be effected by angular displacement of the field of the generator in the manner described with reference to the synchronous motor.
Patent GB-214980-A (GB)
Title: Improvements in and relating to means for holding garments on hangers
IPC: A47G25/30
Filed: 1924-04-14
Abstract: 214,980. Rauch, F. M., and Brooks, W. J. April 23, 1923, [Convention date]. Coat and like hangers. - Elastic sleeves 12, which may be of indiarubber, are arranged to slide on the bar 10 and are provided with extensions 13 having their outer edges 14 inclined upwardly and outwardly. Thereby a garment, with the neck portion arranged outside the extensions 13, is prevented from accidental displacement.
Patent GB-1275051-A (GB)
Title: Containers and method of manufacturing them
Inventor: TAYLOR ARTHUR RAYMOND
IPC: B65D25/00
Filed: 1968-02-27
Abstract: 1275051 Moulding end caps on to cylinders E S & A ROBINSON Ltd 23 May 1969 [27 Feb 1968] 9500/68 Heading B5A [Also in Division B8] A container is made by closing one or both ends of a tubular body made of material including at least one fibrous layer by moulding an end member of plastics material on to the body. The tubular body preferably has a loose of fixed lining of flexible material which is compatible with the plastics material of the end member and which is held by or holds the end member. The end of the tubular body may also be contoured so that it is gripped by the plastic. It may be made of fibreboard, the lining is preferably a thermoplastic film and the end member may be formed from polyethylene, polypropylene or any suitable thermoplastic or thermosetting resin. As shown, a core 4 is fixed in the fibreboard tube 2, an outer mould 11 is clamped around the tube and plastics material is injected at 14 to form the cap 6. The tube is lined with a layer of thermoplastics material 3 which becomes bonded to the cap and a groove 15 in the exterior of the tube enables the thermoplastics material to grip it more securely. The cap may be formed with inserts of plastics or other material and may be provided with a filling orifice, dispensing orifice or a thin diaphragm which can be easily broken.
Patent GB-512233-A (GB)
Title: Oil burner particularly for cooking stoves
IPC: F23D5/00
Filed: 1938-10-03
Abstract: 512,233. Liquid fuel burners. AMSTUTZ; J. Oct. 3 1938, No. 9544139. Divided out of 511,002. [Class 75 (i)] A liquid fuel burner comprises an annular evaporating plate 2 surrounding a main airadmission tube 3 and surrounded by an inclined rim 1 formed with secondary air inlets 13, a perforated cylinder 11 carrying a conical ring 12 and resting on the rim 1, and a ring 4 which rests on legs 6 in a depression in the plate 2 so as to be concentric with tube 3 and is formed with a flange 9 guiding the secondary air to the passages between the legs 6 to mix with the ascending oil vapour. The fuel is fed to the evaporating plate in drops through the air inlets 13.
Patent GB-1434921-A (GB)
Title: Methods for testing the quality of optical equipment
IPC: G01M11/02
Filed: 1972-03-01
Abstract: 1434921 Testing optical system DEFENCE SECRETARY OF STATE FOR 30 May 1973 [1 March 1972] 9557/72 Heading G1A An optical system is tested by measuring its optical transfer function, i.e. the reduction in the contrast of a light pattern when it is transmitted through the system. The pattern is formed by a radial grating, and has a single spatial frequency. After passage through the system under test the pattern contrast is analyzed by a photo-multiplier; either the pattern is rotated or the photo-multiplier is scanned, and this combined with the use of a single spatial frequency renders the test suitable for use with astigmatic systems. In Fig. 1 light from source 10 passes to the photo-multiplier 22 via lens 11, radial grating 12, lens 19, the system 17 under test, lens 20 and pinhole 21. The grating rotates about its centre as shown by arrow 15 and is also mounted so that its centre rotates about the optical axis 18 to cause a planetary motion. The light pattern is focused on the pinhole, the latter being movable by a micrometer. A diffuser, stop and filters (not shown) can be placed adjacent the light source. As the grating rotates the contrast of the pattern at the photo-multiplier varies between maximum and minimum values. To normalize to output of the photo-multiplier its EHT supply is set so that the sum of adjacent maximum and minimum values is unity, a feedback loop maintaining this value in subsequent testing. In Fig. 2 the radial grating 27 is stationary, and the photo-multiplier has a rotating optical probe which scans over the image of the pattern formed by the grating and lenses 30, 31, the tested system being at 29. The source and the detector may be interchanged to pass light through the apparatus in the opposite direction; the light used may lie in the range 0.3-15 microns, and graphs of the results obtained at differing wavelengths are given, Figs. 3-6 (not shown). Correct focusing of the apparatus is important and is achieved when the variation in the photo-multiplier signal as the pattern rotates or is scanned is a minimum, or when the minimum measured value of the transfer function is a maximum.
Patent GB-1389063-A (GB)
Title: Separable fastening device
IPC: A44B18/00
Filed: 1972-03-02
Abstract: 1389063 Strip fastener AMERICAN VELCRO INC 2 March 1972 [15 March 1971] 9674/72 Heading D1K [Also in Division E2] A fastening device comprises: a first member, formed from moulded plastics of upstanding elements 10, extending from a flexible base 32, each having a tapered stem 12, formed by five flat surfaces 11, 13, 30, and a head 14 having at least two opposite resiliently flexible radial extensions 16 sloping away from the end of the stem 12 towards the base 32; and a second member 52 with either one surface formed from an open cell foamed plastics in which membranes have been removed, such as a reticulated urethane foam to provide a partial skeletal structure of interconnected closed strands at the surface, Fig. 8 (not shown), or alternatively with a surface of elements in loop form, Fig. 8 (not shown). The upstanding elements 10 may have a sharp pointed apex 18 at the top to improve penetration and have concave recesses 20 on each side to improve the flexibility of the extensions 16, or the apex may be missing leaving a single concave recess (36), Fig. 5 (not shown).
Patent GB-508415-A (GB)
Title: Improvements in, or relating to, plug-and-socket couplings, combined switch and socket couplings, and similar electrical accessories
IPC: H01R13/453
Filed: 1938-03-30
Abstract: 508,415. Two-part couplings. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. March 30, 1938, No. 9687. [Class 38 (i)] A pair of shutters, one covering each socket of a fitting, are held in the closed position by projections on the shutters interlocking with one another. When the plugs i<SP>1</SP> are inserted in the sockets they engage the shanks e of the shutters and so separate the interlocking heads g and then engage oblique surfaces on the part d of the shutters so as to move them against the action of springs f and uncover the sockets. The rounded edge i of the part d meets a similarly curved wall of the stop h and together with a fulcrum j guides and controls the movement of each shutter.