baber/WOPTO huggingface dataset:
Patent GB-426280-A (GB)
Title: Improvements in the purification of gases
IPC: F25J3/08
Filed: 1933-12-06
Abstract: 426,280. Separating gases by liquefaction. BRITISH OXYGEN CO., Ltd., Angel Road, Edmonton, London, and HOUSEMAN, C. R., c/o British Oxygen Co., Wembley, Middlesex. Dec. 6, 1933, No. 34340. [Class 8 (ii)] Readily liquefied gases such as nitrous oxide, ammonia, &c., having gaseous impurities such as hydrogen, nitrogen or oxygen are purified by cooling the mixture, under the pressure necessary for total liquefaction at atmospheric temperature, down to the boiling point of the main constituent and releasing the pressure to liberate the impurities as gas. The Figure shows apparatus having g two vessels F, G into which the liquefied gas is delivered at 60 atmospheres pressure through a pipe A and heat exchanger B through a valve E to vessel F displacing cold purified liquid therein through a valve H and the exchanger to exit O. When the liquid has been almost wholly displaced, the valves are reversed so that liquid is supplied to and discharged from the vessel G. Meanwhile the valves E, H being closed pressure is released from vessel F by opening valves M, N, by which impurities flow to atmosphere. Cold losses are replaced by expansion of a fraction of impure gas through a valve R, the gas passing back through the exchanger. In a modification, compressed gas passes through an exchanger cooled by outgoing purified gas to a liquefying coil immersed in purified liquid in a vessel, through an expansion valve to an inner vessel where the impurity is continuously withdrawn as gas, the residual purified gas being delivered to the outer vessel wherein it is evaporated by the incoming gas.
Patent GB-1500588-A (GB)
Title: Punching devices
IPC: B26F1/14
Filed: 1975-08-19
Abstract: 1500588 Punching; strippers HOUDAILLE INDUSTRIES Inc 19 Aug 1975 [14 Feb 1975] 34436/75 Heading B3W In a sub press mechanism, the height of the rest position of a punch-guide/stripper sleeve 18 is adjustable by means of a retainer plate 32, which is rotatable, about an unthreaded portion 44 of a screw 45 securing it to a frame member 11, to position a selected one of a plurality of segments, as shown, 33-35 in overlying relationship to a bore 15 in which the sleeve is reciprocated during punching. Each portion is a different thickness from the others and extends in the path of a shoulder 17 on the sleeve 18 as a lifter spring 30 raises the punch and stripper sleeve unit after a punching stroke. A fourth segment of the plate is cut away to form a flat 37 to allow the punch and stripper sleeve unit to be removed. The plate is accurately located in each of the four positions by engagement of a spring-loaded ball 49 in a respective recess 50- 53 in the plate. The lower positions of the sleeve are used when workpieces thinner than the device is able to deal with are punched so that the sleeve acts as a guard for the operator.
Patent GB-933228-A (GB)
Title: Circuits employing square loop cores
Inventor: LAISHLEY FREDERICK HERBERT
IPC: H03K19/16
Filed: 1959-10-12
Abstract: 933,228. Circuits employing bi-stable magnetic elements. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 11, 1960 [Oct. 12, 1959; July 1, 1960], Nos. 34460/59 and 23044/60. Class 40 (9). In a circuit, Fig. 2, comprising a core C having a substantially square hysteresis loop, switches T1, T2, T4 are connected to input windings L1, L2, L4 respectively, and the arrangement is such that, with a D.C. source connected across capacitor C1, when switch T2 is conductive current flows through winding L2 to magnetize the core in one direction and when switch T1 is conductive current flows through winding L1 to apply a magneto-motive force to the core in the opposite direction, an output appearing in an output winding L3 whenever the remanent state of the core changes. Current flowing through input winding L4 when switch T4 is conductive, applies a magneto-motive force to the core in the same direction as current flow through winding L1. In one arrangement, signals applied to terminal S2 are clock pulses and signals must be applied simultaneously to terminals S1 and S4 (which signals must be out of phase with the signals applied to terminal S2) to produce an output, current flowing through either winding L1, L4 alone being insufficient to change the remanent state of the core. In another arrangement, the circuit is such that signals applied to either terminal S1 or S4 result in an output in winding L3, provided that the remanent state of the core is correctly set. In a further arrangement, Fig. 1 (not shown), the input winding L4 and switch T4 are omitted. Clock pulses are applied to terminal S2 and the circuit produces an output in the form of a train of pulses provided that pulses are applied to terminal S1 out of phase with those applied to terminal S2. The switches may be transistors, cold cathode tubes or other equivalent vacuum or semi-conductor devices. The purpose of capacitor C1 is to minimize the risk of overloading the source of supply when the source supplies power to a plurality of circuits such as those shown. Resistor R2 is so chosen that the capacitor charges slowly when the switches are non- conductive.
Patent GB-943133-A (GB)
Title: New phthalocyanine dyestuffs, their manufacture and use
IPC: C09B47/26
Filed: 1961-09-26
Abstract: In an example (3) a green-blue lacquer is made by adding to an alkyd-melamine resin, a solution in toluence of a copper phthalocyanine tetrasulphonamide containing attached to each amide nitrogen atom a lauryloxypropyl group.ALSO:The invention comprises copper phthalocyanine tetrasulphonamides which are free from salt-forming groups and which contain attached to each amide nitrogen atom an alkoxyalkyl group containing in the alkoxy residue 11 to 30 carbon atoms and in the alkyl residue 2 or 3 carbon atoms. Alkoxyalkyl groups specified are lauryloxy-, myristyloxy-, stearyloxy- and behenyloxy-propyl and -ethyl groups.  The dyes are made by reacting an appropriate alkoxyalkylamine with a copper phthalocyanine tetrasulphonyl chloride free from incompletely chlorinated tetrasulphonic acid, prepared for example by reacting a copper phthalocyanine sulphonic acid or an unsulphonated copper phthalocyanine with chlorosulphonic acid and, before isolating the tetrasulphochloride, treating the reaction mixture with thionyl chloride.  Examples are given.
Patent GB-1083504-A (GB)
Title: Zinc pyrophosphate plating process
IPC: C25D3/22
Filed: 1964-08-24
Abstract: An aqueous alkaline e.g. pH 10.5-12 pyrophosphate solution for producing bright zinc electro-deposits contains at least one zinc salt, preferably Zn2 P2 O7 to provide a total P2 O7/Zn weight ratio of 6.5-8.0, and has dissolved therein (1) a carrier selected from bis-[sulphonaphthyl] methanes, naphthalene derivatives containing at least one substituent viz. hydroxy, amino, imino or sulphonic acid in the free acid or alkali metal salt form, benzene or alkyl or imino-benzene derivatives containing a sulphonic acid group in the free acid or alkali metal or ammonium salt form, a sulphonamido or sulphonimido group, and allyl sulphonic acid and alkali metal salts thereof; and (2) a carbonyl compound, viz. an aldehyde such as o-, m-, p-hydroxybenzaldehyde, benzaldehyde, piperonal, veratraldehyde, b -methoxylpropionaldehyde, furfural, glyceraldehyde, anisaldehyde, salicylaldehyde propyl sultone, ethyl vanillin, thiophene-2-aldehyde, or a ketone such as acetophenone, acetylacetone, isophorone, dihydroxyacetone.
Patent GB-1443926-A (GB)
Title: Elec-ron-optical image tube systems
IPC: H01J31/44
Filed: 1972-07-24
Abstract: 1443926 Image pick-up tubes D J BRADLEY 20 July 1973 [24 July 1972] 34544/72 Addition to 1329977 Heading H1D An electron optical image tube system comprises photocathode 3 for receiving pulse-form light images, extraction electrode 4, deflector electrodes 7a, 7b causing the electrons to follow a path at aperture defining means 9 having a rotational component of motion about the tube axis, control means adjustable so that the photoelectron pulses may be caused to coincide with the aperture, and pick-up means (e.g. electron multiplier 11). Fig. 1 also includes conical focusing electrode 5, anode 6, phase control 15 producing with the deflectors a spiral or circular scan, linear ramp voltage source 14, mode-locked laser 18, and stationary flat disc 9 with aperture (19) (Fig. 2a, not shown). The aperture may be # Ám width (e.g. 50 Ám) and shaped to match the focusing field of the tube to produce a finer point image with increased time resolution. Pulse durations may be 1 picosecond or less and the rate of circular scan is equal to, or a mutliple or sub-multiple of the pulse repetition rate. An optical delay line (Fig. 3, not shown) ensures coincidence of the photoelectron pulse with the aperture, and by changing the delay by a known amount the intensity may be plotted with a time resolution depending on aperture width. Alternatively the relative phases of the deflecting voltages may be changed continuously by device 15. An array of disc apertures (26a), (26b), (26c) &c. of different widths (Fig. 2b, not shown) produces different time resolutions, the scanning circle radius being correspondingly changed. Alternatively, a slit of varying width may be used (Fig. 2c, not shown). Electron multiplier 11 may be mounted inside the tube or on the end wall, while recorder 13 may be a pen recorder or oscilloscope.
Patent GB-1117886-A (GB)
Title: Ethylene-vinyl chloride polymers, and rubber-like elastomers obtainable therefrom
IPC: C08F20/58
Filed: 1966-08-02
Abstract: Curable copolymers comprising 20 to 40 parts by weight of ethylene, 60 to 80 parts by weight of vinyl chloride and 0.5 to 5 parts by weight of an acrylamide compound of formula CH2=CR1CONCH2-O-R2 where R1 is hydrogen or methyl and R2 is C1- 8 alkyl, may be prepare by copolymerizing the monomers in aqueous emulsion under pressure.  The resulting latices may be used to coat films or impregnate paper or fabrics and the copolymers cured in situ by heating.  In examples terpolymers are prepared by copolymerizing vinyl chloride, ethylene and N-butoxymethyl acrylamide in aqueous emulsion in the presence of an alkyl benzene sulphonate, potassium dihydrogen phosphate, sodium hydroxide, potassium persulphate and sodium sulphite, the product of Example II being compounded with carbon black.
Patent GB-191271-A (GB)
Title: Improvements in chicken hovers
IPC: A01K31/19
Filed: 1921-12-23
Abstract: 191,271. Frost, A. E., and Dairy Outfit Co., Ltd. Dec. 23, 1921. Rearing-appliances.-A hover for chicks comprises a hood carrying flaps of felt &c. which is adjustable in height and with which a stove having a removable top carrying flue, pipe may be employed. The hood A has tubular fittings D which slide on rods D<1> resting upon or in the ground. Clamping screws D<2> secure the hood at any height. The stove comprises a cylinder C within which a charcoal block is kindled on a grating C<2>. The conical top C<1> carrying a flue B, which passes loosely through the hood A, is then put in place. Guards F, G surround the stove and the roof of the hover, and the felt flaps E are passed over rods or wires A<2> carried by the hood, which has also holding clips A<3> for the flaps.
Patent GB-413201-A (GB)
Title: Improvements in or relating to carbon sliding contact members
IPC: B60L5/20
Filed: 1933-12-08
Abstract: 413,201. Carbon electric collectors. CONRADTY, E., and CONRADTY, C., (trading as CONRADTY, C.), 9, Spittlertorgraben, Nuremberg, Germany. Dec. 8, 1933, No. 34655. Convention date, Dec. 27, 1932. [Class 104 (iii).] In a sliding carbon collector of straight or curved form, the space c between the carbon a and its metal support b is filled with a casting material, such as sulphur or metal of low melting point.
Patent GB-1523863-A (GB)
Title: Twist lock
IPC: B60P7/13
Filed: 1975-10-29
Abstract: 1523863 Twistlock W B NESS 29 Oct 1975 [6 Aug 1974] 34665/74 Heading E2B A twistlock fastening comprises a hollow mounting body 1 supporting a bolster or guide member 3 for vertical sliding movement thereon, the member 3 rotatably carrying a spindle 20 having a T-head 2 which may be passed through a slot 80 in container 8 and secured therein by rotating to a position transverse of the slot, the spindle 20 having projections 60 engaging recesses 40 in housing 4 of the body 1 when in the raised position so that the spindle must be further raised to disengage projections 60 and recesses 40 before rotation of the T-head for disengagement from container 8. As shown, the operating handle 5 has a continuation (50, Fig. 1, not shown) which rests on ledge 7 on body 1 in the raised, but disengaged position (Fig. 1) so that further raising of spindle 20 is necessary to clear ledge 7 and enable engagement of projections 60 and recesses 40 on rotation of T-head. Spindle 20 has spring-loaded balls 90 engaging detents 39 in bolster 3 in both aligned and transverse positions of T-head 2.
Patent GB-972264-A (GB)
Title: Process for the preparation of substantially carbon monoxide free gases of high calorific value
IPC: C10K3/04
Filed: 1962-09-11
Abstract: A process for the preparation of carbon-monoxide-free gases from desulphurized gases containing mainly hydrogen and carbon monoxide comprises passing the gases and water vapour at from 400 DEG  to 600 DEG  C. over a nickel catalyst on an oxide support, the nickel content being 50% by weight or less, and the support including an oxide of a Group II metal.  The oxide support may be mixed with oxides of Group III and/or IV metals.  Catalyst promoters such as iron or magnesium oxides may be added.  The process is preferably carried out at pressures above 5 atmos.  The oxide supports may be burned raw magnesite, raw dolomite, or dolomitic limes.
Patent GB-1067879-A (GB)
Title: Toothed clutch
Inventor: CLEMENTS HERBERT ARTHUR
IPC: F16D23/10
Filed: 1964-08-25
Abstract: 1,067,879. Clutches. S.S.S. PATENTS Ltd. Aug. 9, 1965 [Aug. 25, 1964], No. 34804/64. Heading F2C A synchronous self-shifting clutch substantially similar to that shown in Fig. 7 of Specification 977,714, is provided with radially resilient means for locating the final driving and driven clutch members axially while accommodating some misalignment. The means comprises a disc 52 fixed on a spindle 53 which is carried by a clutch member 19. The periphery of the disc 52 is in sliding contact with white metalled bearing surfaces of a ring 9 and flange 8 fast with a clutch member 1. The ability of the spindle 53 to flex slightly and/or of the disc 52 to deform enables the clutch to accommodate slight misalignment of the input and output shafts.
Patent GB-1211229-A (GB)
Title: Improvements in or relating to raising and lowering regulators
Inventor: PRIESTMAN FRANCIS DENNIS
IPC: H02G9/00
Filed: 1967-07-28
Abstract: 1,211,229. Regulator for curved vehicle windows. ROOTES MOTORS Ltd. 29 July, 1968 [28 July, 1967], No. 34898/67. Heading E2M. [Also in Division F2] A regulator for raising and lowering an article curved about a horizontal axis (e.g. a curved window glass in a vehicle door) comprises a flexible U-shaped lever arm 14 attached to a quadrant 10 rotatable about a pivot 11 by means of a handle (not shown) on a spindle 12 carrying a gear (not shown) engaging the quadrant. The free end of the lever arm carries a roller 15 running in a channel attached to the lower edge of the window glass.
Patent GB-384807-A (GB)
Title: An improved mounting means for the operating lever or dolly of a tumbler switch
IPC: H01H23/14
Filed: 1931-12-18
Abstract: 384,807. Switch handles. TUCKER, J. B., Kings Road, Tyseley, Birmingham. Dec. 18, 1931, Nos. 35045/31 and 259/32. [Class 38 (v).] The pivot pin d of the dolly of a tumbler switch is mounted between the bridge piece a and the base c. Slots are provided in the bridge piece to accommodate the pivot pin and endwise move ment is thus prevented. In a modification the pivot pin is partly accommodated in slots in the bridge and partly in slots in the base. In a further modification the pin is entirely accommodated in slots in the base.
Patent GB-1511865-A (GB)
Title: Process for oxidising sulphur dioxide
IPC: C01B17/775
Filed: 1975-08-26
Abstract: 1511865 SO 2  removal; H 2 SO 4  NIPPON OIL CO Ltd 26 Aug 1975 [27 Aug 1974] 35189/75 Heading C1A Sulphur dioxide in a gas stream is oxidized by contacting it with an oxygen containing gas in the presence of a catalyst comprising an aqueous solution containing at least 3 p.p.m. each of pentavalent vanadium ions, divalent manganese ions and trivalent iron ions. Reference is made to Specifications 1,466,783 and 1,481,066.
Patent GB-1427245-A (GB)
Title: Disc brakes
IPC: F16D65/18
Filed: 1973-07-24
Abstract: 1427245 Spot-type disc brakes GIRLING Ltd 11 July 1974 [24 July 1973] 35205/73 Heading F2E An hydraulically-operated disc brake for vehicles of the kind comprising an actuator located on one side of the disc 2 and including first and second oppositely-acting pistons 20, 21, respectively movable relative to a stationary housing 1, the directly-actuated friction pad assembly 12 being applied by the first piston 20 and the indirectly-actuated friction pad assembly 7 being applied by the second piston 21 through a yoke 5 movable with respect to the stationary housing 1 in a direction parallel to the axis of the disc 2, is characterized in that the yoke 5 and the second piston 21 are rigidly connected, and the drag on the indirectlyactuated friction pad assembly 7 is transmitted to the housing 1 through the second piston 21 which is of an axial length substantially equal to that of the housing 1, the pistons and the housing being sealed by flexible boots 27, 28, respectively connected between the housing and each piston. As shown, the second piston 21 is hollow and works in an open-ended axially-extending bore 4 in the housing 1 and the first piston 20 works in the second piston, boot 28 being connected between piston 21 and the outer end of the housing and boot 27 being connected between piston 20 and the inner end of the housing; boot 28 is clamped by a retaining ring 29. Also as shown the second piston is provided with a pair of circumferentially-spaced spigots 22 which project through complementary openings 23 in the yoke 5 and receive nuts 24 for clamping the second piston against the yoke. End faces 15 of backing plate 14 of pad assembly 12 engage slidably with complementary surfaces 16 of arms 17 projecting from housing 1. In Figs. 5, 6 (not shown) the spigots are replaced by a single central boss having flats to hold it against rotation while the nut is tightened, and yoke, piston and nut are eventually locked against relative rotation by a tab washer.
Patent GB-412171-A (GB)
Title: Improvements in or relating to heat insulation
IPC: F16L59/02
Filed: 1932-12-13
Abstract: 412,171. Stoves. BERRY, A. F., Welling- ton House, Strand, London. Dec. 13, 1932, No. 35354. [Class 126.] The casing of a cooking oven is constructed from cellular non-conductive material such as Portland or like cement having a surface comprising a film of even close grain composed of the same material. A mixture a of Portland cement and gas forming material such as aluminium with water, with or without crushed burnt clay, finely divided asbestos, granulated cork or pumice stone is charged into a mould b-c the surfaces next to the mould forming a close grained film, which condition is facilitated by slowly withdrawing the inner part of the mould c before the mixture has set, or lining the mould with paper. The mould may be previously lined with pre-formed cellular material. The outer surface of the chamber may be protected by a jacket of cement or asbestos board integral or not with the cellular material. The cellular material may be hardened by treating it with a solution of magnesium-silico-fluoride or firstly with alkaline silicate followed by calcium chloride solution. Specification 329,291, [Class 2 (iii)], is referred to.
Patent GB-1041134-A (GB)
Title: Improvements in or relating to the packaging of prefabricated components for building
IPC: E06B7/00
Filed: 1964-08-31
Abstract: 1,041,134. Packaging building components. A. W. MELDRUM. May 26, 1965 [Aug. 31, 1964], No. 35556/64. Heading B8C. [Also in Division E1] A pre-fabricated window, door or other building component is sealed in a flexible envelope which permits the component to be inspected without breaking the seal. A sealed transparent or translucent plastics wrapping 9 (Fig. 3, not shown) about a prefabricated window unit may be left in position while the unit is incorporated in a building, so that parts of the wrapping may subsequently serve as a waterproof seal. Portions 15, 15<SP>1</SP> (Fig. 5, not shown) of the wrapping may be doubled to provide better protection. The sash portion 9 may be sealed in a further wrapping 8 within the first, and the fastener 5 for securing the sash may be disposed outside the inner wrapping so that the window can be opened and closed without removing the inner wrapping. Part of the inner wrapping remains in position, after unwrapping, to form a gasket. Battens 7 (Fig. 3) may protect the edges of the window frame. A masking strip 11 (Fig. 4, not shown) may be placed over the outside of the outer wrapping 9. An alternative wrapping is formed by wide mesh fabric or net on which partially polymerized synthetic resin is sprayed.
Patent GB-631385-A (GB)
Title: Improvements in or relating to lathes
IPC: B23Q7/04
Filed: 1946-12-02
Abstract: 631,385. Lathes; chucks. JONES & LAMSON MACHINE CO. Dec. 2, 1946, No. 35665. Convention date, Jan. 19. [Classes 83 (ii) and 83 (iii)] [Also in Group XXX] In an automatic lathe, a driving connection is formed between the headstock spindle 20 and a workpiece, e.g. a motor armature 70 or the like, by means of spring - pressed clutch pawls 202 having chamfered lugs 208 which are adapted to engage a splined portion 76 of one, 74, of the armature shaft extensions 72, 74. The latter are adapted to be gripped by bevel-closing collets 170, 196 provided in an axially-movable tailstock ram 22 and in the spindle 20 respectively. A carrier head 56, Fig. 2, provided with gripping jaws 60 transfers an armature from the supply station 52 to a loading station in which it is in alignment with the chucks, and a second carrier head 58 simultaneously transfers another armature from the loading station to a delivery station 54. The armature is pushed from the loading station into engagement with the chucks by the ram 22. After tooling, the ram 22 is retracted and the armature released by an ejector rod 190. The ram 22, carrier heads 56, 58 and ejector rod 190 are operated by means of cams on drums. Making dynamo-electric machines.-A motor armature is transferred from the supply station of an automatic lathe to a loading station where it is chucked and tooled, the tooled armature being released and transferred to a delivery station.