baber/WOPTO huggingface dataset:
Patent GB-147821-A (GB)
Title: Improvements in and relating to brush-shifting apparatus for alternating current electric motors
IPC: H02K23/18
Filed: 1920-07-09
Abstract: 147,821. British Thomson - Houston Co., (Assignees of Altes, W. C. Korthals-). Feb. 13, 1918, [Convention date]. Alternating-current commutator machines.-In alternating-current commutator motors in which the speed is determined by the number of rotor conductors in series between the commutator brushes, and wherein the brush-shifting mechanism is constructed so as to move the brushes with different angular velocities, the two sets of brushes B1, B2 are mounted on movable yokes D1, D2 connected to a handle h, the one D2 directly and the other D1 through gear wheels N, K. On the stud shaft 12 on which the wheel N is mounted is also mounted a wheel M gearing with a stationary wheel G. Any desired ratio between the angular movements of the two sets of brushes can be obtained by suitably choosing the numbers of teeth on the four gear wheels. The normally stationary wheel G is secured to its support E by pin-and-slot connexions 17, 18 so that it may be rotated through a definite angle when the connexions a.re reversed to reverse the direction of rotation of the motor. The reversing switch S, Fig. 3, and a gear wheel 21 gearing with the wheel G are mounted on a shaft 20 so as to be operated simultaneously when the handle h is moved to cause a pin u to engage with a gear wheel t.
Patent GB-744504-A (GB)
Title: Improvements in or relating to polymerization
IPC: C08F2/22
Filed: 1953-07-17
Abstract: Compounds containing the CH2 = C< group are polymerized in emulsion or solution by a continuous process in which during polymerization the deposition of polymeric solids in a selected zone of the polymerization system other than the polymerization zone, e.g. a heat-exchanger, is inhibited by the introduction of oxygen, nitrous oxide, or nitric oxide, including substances which release these gases under reaction conditions.  The gases are preferably introduced at the rate of between 0.0005 and 0.05 cubic feet per pound of resin-forming material in the feed. Acrylonitrile is the preferred substance containing a CH2 = C< group, others being vinyl fluoride, chloride, and bromide, vinylidene chloride and chlorofluoride, vinyl acetate, chloroacetate, propionate, and butyrate, vinyl methyl, vinyl isobutyl, and vinyl 2-chloroethyl ethers, vinyl methyl, vinyl hexyl, and vinyl isopropenyl ketones, ethylene, isobutylene, styrene, methyl styrene, dimethyl styrenes, hydroxystyrene, p - chlorostyrene, methyl, ethyl, n-butyl, isobutyl, dodecyl, 2-chloroethyl, 2-chloropropyl, 2,21-dichloroisopropyl, phenyl and cyclohexyl acrylates, methyl alpha-chloroacrylate, methyl, ethyl, and betahydroxyethyl methacrylates, N-vinyl pyridine, N-vinyl pyrrole, N-vinyl carbazole, N-vinyl indole, N-vinyl succinimide butadiene, chloroprene, and diallyl maleate, which may be polymerized alone or with each other or other compounds such as the alkyl esters of maleic and fumaric acids. As a redox catalyst in aqueous dispersion polymerization there is used an acidified mixture of sodium chlorate and sodium sulphite, together with a small quantity of ferrous sulphate, and other redox catalysts described in Specification 735,225.ALSO:<PICT:0744504/III/1> An apparatus for continuous polymerization consists of a reaction vessel 2 provided with a turbine wheel 4 and a propeller 6 mounted on the same shaft 8; reaction material is fed into line 12 through lines 14, 16 and 18 and is circulated through line 20, pump 22, line 24 and cooler 26, and returned to the vessel while air or other gas is introduced through line 32 or 34, reacted material leaving the system through line 28. Specification 735,225 is referred to.
Patent GB-530997-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/22
Filed: 1939-07-07
Abstract: 530,997. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. July 7, 1939, No. 19876. Addition to 495,834. [Class 103 (i)] In order that the shoe-spreading device may act in a " floating" manner the ends of the pivot 32, Figs. 1 and 2, of the sector-shaped members 30, 31, whose movement by the action of a member 34 operated by a hydraulic piston 51 causes the separation of the shoe-operating plungers 23, 24 are made capable of sliding by being mounted in grooves 37, 38 of the portions 37, 38 of the bifurcated member 34. Retaining means to connect the sector-shaped members with their pivot during assembly consist of washers 42. 43 fitting over the pivot end and provided with projections 44 and 45 engaging in holes in the sector-shaped members. In other constructions the ends of the pivot 32 are placed in :fixed bearings of the member 34, which is itself pivotally connected to the plunger or member for effecting the angular movement of the sector-shaped members.
Patent GB-129909-A (GB)
Title: A Lightweight Travelling Box for Dogs, Cats, Rabbits or Cavies.
Inventor: BEATTIE CHARLES JAMES
IPC: B65D6/14
Filed: 1918-12-03
Abstract: 129,909. Beattie, C. J. Dec. 3, 1918. Ventilating boxes; lined boxes; battens, strengthening; fittings, external; handles.-A ventilated box for carrying dogs &c. comprises double ends B, C forming a space D, the outer frame C being perforated to the level of the inside frame B which extends to about two-thirds the height of the end; a direct draught upon the inmate of the box is thus avoided. Battens I fixed to the outside of the ends prevent the cases being stacked closely together, and thus ensure ventilation. A carrying strap J, passing over the lid of the box, is secured to the batten I. The sides, ends, and lid are of plywood, and the bottom is provided with battens E.
Patent GB-964177-A (GB)
Title: Improvements relating to optical projection systems
IPC: H04N5/225
Filed: 1961-06-02
Abstract: 964,177. Projection systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 2, 1961 [June 4, 1960], No. 19980/61. Drawings to Specification. Heading G2J. [Also in Division H4] A device for projecting a configuration on a carrier simultaneously on to a projection screen and a pick up screen of a television camera said screens arranged on different light paths comprises said carrier, a projection lens, a spherical concave mirror (which may be completely transparent) and a television camera objective so arranged that the optical path distance between each of the two lenses and the mirror is equal to the radius of curvature; the carrier is spaced from the projection lens at least by a distance equal to the focal length. Several embodiments are described in which plane mirror(s) (fully or half silvered or transparent) are used to deflect the various light beams. The surfaces of the plane mirror(s) may be inclined to each other by an angle of less than 3 degrees to prevent a double image being formed and a positive correcting lens may be placed near the camera objective.
Patent GB-843887-A (GB)
Title: Three-dimensional lattice type capacitor for tank gauging
IPC: G01F23/26
Filed: 1958-06-23
Abstract: 843,887. Electric tests. LIQUIDOMETER CORPORATION. June 23, 1958 [July 31, 1957], No. 20002/58. Class 37. A capacitor for use in a system for measuring the quantity of liquid in a container irrespective of its shape or attitude comprises two electrodes, each formed by a plurality of conductive wires arranged in a three-dimensional lattice, the wires of one electrode being disposed between the wires of the other electrode, and the electrodes extending throughout the whole space within the container. Fig. 2 depicts a capacitor comprising two orthagonal electrodes, one formed by wires 10, 11, 12 the other by (shaded) wires 13, 14, 15, and held in mutual spaced relation as shown by cross-shaped members 20 of insulating material lateral movement being prevented by sleeves 23 which may be conductive. Alternatively the electrodes may be spaced by strips of insulating material which are fastened diagonally across " cubes " formed by one electrode, the centre of each strip holding a junction of the wires of the other electrode. In addition to, or instead of, internal spacers, the ends of the wires of the electrodes may be fitted into blind bores in pieces 30 (Fig. 4) of insulating material which engage the container wall 26 as shown, or fit into recesses formed in or on the wall. In another embodiment, honeycomb-shaped lattices form the electrodes.
Patent GB-673094-A (GB)
Title: Improvements in or relating to sealing material for use in glazing and for similar purposes
IPC: C03C25/27
Filed: 1949-08-02
Abstract: 673,094. Coated yarns. BRITISH BELTING & ASBESTOS, Ltd., and BRIGGS, H. Aug. 1, 1950 [Aug. 2, 1949], No. 20104/49. Class 120(iii) [Also in Groups X and XXVI] A sealing material for use in glazing and for similar purposes comprises asbestos yarn coated with a rubber-like plastic material consisting of a polyvinyl compound such as polyvinyl chloride or acetate; polyvinylidene chloride or the like used in conjunction with a suitable plastisizer, e.g. tri-cresyl phosphate.
Patent GB-275252-A (GB)
Title: A method of manufacturing hollow cables for overhead high tension lines
IPC: H01B5/10
Filed: 1927-07-28
Abstract: 275,252. Felten & Guilleaume Carlswerk Akt.-Ges. July 31, 1926, [Convention date]. Cores for cables.-A hollow cable for overhead high-tension lines is characterised by the feature that the wires, before being laid to form the cable, are bent into the helical form they are to occupy in the finished cable. It is stated that a single layer cable made in this way is free from strain or twist and the wires do not tend to spring apart from one another.
Patent GB-1417532-A (GB)
Title: Process for the manufacture of methyl mercaptan
IPC: C07C319/08
Filed: 1974-05-07
Abstract: 1417532 Methylmercaptan RHONE-PROGIL 7 May 1974 [30 Nov 1973] 20112/74 Heading C2C  Methylmercaptan is prepared by reacting methanol with H 2 S in the vapour phase by passing them over at least 3 consecutive alumina catalyst beds, all the H 2 S being introduced at the first bed with the methanol being introduced at at least 3 consecutive beds, while maintaining the temperature from 280 to 450 C. throughout the reaction mixture and the pressure from 2À5 to 25 bars, the overall molar ratio of H 2 S to methanol being from 1À10 to 2À5. The alumina preferably has a specific surface area of 100 to 350 m.<SP>2</SP>/g. The methanol may be introduced partly in liquid and partly in gaseous form.
Patent GB-320382-A (GB)
Title: Improvements in or relating to shaping or stretching devices
IPC: D06F59/06
Filed: 1928-07-11
Abstract: 320,382. Anglim, K. July 11, 1928. Drying clothes. - An open frame for drying and shaping socks or stockings is made in two or more parts hinged or detachably connected together half-way down the legs. Two rustLess wires forming the top and bottom of the legs are joined at 12 by tubular ferrules, or the frame is formed from wires 10, 14, 15 hinged at 16, 17, the top wires being connected by a ferrule 18. A resilient loop 20 mav be formed in the frame for adjustment to different-sized stockings, and a supporting loop 19 formed as shown.
Patent GB-531116-A (GB)
Title: Improvements in gas-tight seals whereby electric conductors pass into a vitreous envelope
IPC: H01J5/24
Filed: 1939-07-12
Abstract: 531,116. Glass. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., and FRANCIS, V. J. July 12, 1939, Nos. 20288/39 and 5515/40. [Class 56] [Also in Group XXXVI] To seal a conductor through a vitreous envelope 1, at least 1 mm. thick, a flat 2 is formed on a convex part, with a hole therethrough, the conductor 4, embedded in vitreous material 5 of such mass as to fit the hole is introduced, the edges are heated to join the abutting parts, and fused vitreous material 6 is added to the outside to make up the thickness at least to that originally present. Specification 506,562, [Group XXXVI], is referred to.
Patent GB-1208683-A (GB)
Title: Safety device for boilers
Inventor: GINGRAS ROCH HENRI
IPC: F22B37/42
Filed: 1968-04-30
Abstract: 1,208,683. Safety devices for boilers. R. H. GINGRAS. 30 April, 1968, No. 20339/68. Heading F4A. [Also in Division H1] A boiler safety device to prevent overheating upon drop in liquid level comprises a temperature responsive device 23 removably mounted in a tube 21 passing through the boiler wall. The device 23 comprises a fusible plug 41, Fig. 5, normally closing the circuit between two electrical leads 37 passing from a heat resistive cable 25 through a ceramic block 35 closing the upper end of a tube 31. The tube 21 is mounted on the water side of a fire wall 15 of a boiler, e.g. by welding thereto, but may be mounted on the fire side. If the liquid level drops below a permitted level, the temperature of the wall 15 rises and the plug 41 melts and falls to the bottom of tube 31, breaking the electrical circuit and actuating an alarm or cutting off the fuel supply to the boiler. In Fig. 8 the device comprises two long leads 37<SP>1</SP> and one short lead 37<SP>11</SP>, the plug 41 normally closing a circuit between one lead 37<SP>1</SP> and the lead 37<SP>11</SP> in a circuit controlling a fuel valve. Upon an overheat condition, plug 41 melts to break the above circuit, cutting off the fuel supply, and closes the circuit between the two conductors 37<SP>1</SP> to operate an alarm.
Patent GB-1403469-A (GB)
Title: Windscreen wiper assembly
IPC: B60S1/38
Filed: 1973-04-30
Abstract: 1403469 Windscreen wipers SWF-SPEZIALFABRIK FUR AUTOZUBEHOER GUSTAV RAU GmbH 30 April 1973 [28 April 1972] 20411/73 Addition to 1314938 Heading A4F A main windscreen wiper yoke is coupled to a secondary yoke 14 by an integrally formed connector 20 e.g. of plastics material, a pivot pin 13 passing through transverse bores 12, 21 in the yoke 10 and connector 20 and held against axial displacement by the walls of a recess 15 in the yoke 14, into which the connector 20 is slid and retained by lugs 18 on the yoke 14 which engage in recesses 25 in the connector 20.
Patent GB-646257-A (GB)
Title: Improvements in or relating to air or like conditioning systems
IPC: B64D13/06
Filed: 1948-08-03
Abstract: 646,257. Cooling gases. GARRETT CORPORATION. Aug. 3, 1948, No. 20478. Convention date, Oct. 24, 1947. [Class 29] [Also in Group X] A gas, e.g. air is supplied to a compartment to be conditioned thereby, e.g. an aircraft cabin 10 through an inlet 14 for rammed air, a compressor 16 and first and second heat-exchangers 22, 40, the cooling passage of the exchanger 40 being connected to ducts 58, 47, arranged in parallel, and leading to the cabin. A work-extracting engine 18, coupled to the compressor 16, is arranged in the air flow to the duct 47, the air in the latter being thereby cooled. A part of the cooled air, determined by the setting of a valve 51, is tapped off by a duct 49 to serve as a coolant in the heat-exchanger 40. The remainder is apportioned, according to the setting' of a valve 53, between the duct 52 for supply to the cabin, and the coolant passages of a heat-exchanger 55, through the cooling passages of which, air, in volume, controlled by a valve 59, flows from the duct 58. The coolant for the first exchanger 22 is rammed air from an inlet 26. The rammed air may, according to the setting of valves 31, 27, 29, be led directly through a duct 26a to the duct 33 leeading to the coolant passages, or it may drive an engine 30 and become cooled before passing the valve 33a to the duct 33, the valve 32a being closed. The engine 30 is connected through a clutch 34a to the compressor 16. If the energy content of the rammed air is too low to drive the engine 30, i.e. when the aircraft speed is low, the valve 31 is opened and the valve 27 is closed. The engine is then driven by pressure air bled from the turbo-jet compressor, the air being admitted to the engine 30 by opening the valve 29. The exhaust valve 32a would be opened and the valve 33a closed.
Patent GB-768151-A (GB)
Title: Improvements in or relating to socks and stockings
IPC: A41B11/00
Filed: 1954-07-14
Abstract: 768,151. Hand knitted socks &c. SOUTER, I. G. June 6, 1955 [July 14, 1954], No. 20539/54. Class 141. [Also in Group VIII] The toes of hand knitted socks or stockings are shaped as shown, to conform to the shape of the feet of a wearer.
Patent GB-776342-A (GB)
Title: Resinous reaction products and their method of preparation
Inventor: SEAR DEREK WILLIAM
IPC: C08C19/00
Filed: 1953-07-25
Abstract: A resinous reaction product is prepared by reacting a rubbery copolymer containing carbonyl groups, such as a butadiene-methyl isopropenyl ketone copolymer, a lower aliphatic ketone, such as acetone or methyl ethyl ketone, and a naturally occurring substance containing or generating a phenol, such as quebracho extract; the ketone and the naturally occurring substance containing or generating the phenol may be condensed prior to admixture with the copolymer. The reaction may be carried out by mechanically working and simultaneously heating a mixture of the reactants in the presence of a catalyst such as para-toluene sulphonic acid and para-toluene sulphonyl chloride or by passing hydrogen chloride gas into a solution of the reactants.
Patent GB-473718-A (GB)
Title: An improvement relating to traps for rabbits and like vermin
IPC: A01M23/26
Filed: 1936-07-27
Abstract: 473,718. Animal traps. SAWYER, F. E. July 27, 1936, No. 20702. [Class 5 (i)] In a rabbit or like vermin trap of the kind in which spring-controlled arms B, B<2> are folded down beneath a catch H and one beside the other when the trap is set, two platforms K, L are provided, so that depression of either allows the trap to be sprung. The arms and platforms are pivoted to a stock A to which are riveted feet J. The arm B<2> is slotted to receive the arm B, a stop S<1> limiting the upward movement. The catch H is pivoted to the platform B' and is adapted to engage a projection G on the platform B.
Patent GB-714753-A (GB)
Title: Improvements in darkening type matrices
IPC: B41B11/00
Filed: 1950-08-22
Abstract: Cellulose nitrate is used as a binder for impregnating ribbons of woven spun glass with an organic sulphur compound, e.g. thiourea, rubeanic acid (dithio-oxamide), diphenylthiocarbazone, thiosemicarbazide, thioglycollic-beta - aminonaphthalide, ditolylthiourea, thiocarbanilide.  An example comprises thiourea, cellulose nitrate, ethyl lactate, oil of juniper and castor oil, with or without nitrobenzene or alcohol as a thinner.ALSO:Ribbons are impregnated with solid organic sulphur compounds, e.g. thiourea, rubeannic acid (dithiooxamide), diphenylthiocarbazone, thiosemicarbazide, thioglycollic beta-aminonaphthalide, ditolylthiourea or thiocarbanilide.  The ribbons may be of paper, cloth, asbestos paper or woven spun glass.  In the last case, nitrocellulose or collodion may be used as a binder.  A suitable composition comprises thiourea, nitrocellulose, ethyl lactate, oil of juniper and castor oil, with or without nitrobenzene or alcohol as a thinner.ALSO:Metallic surfaces of type matrices are darkened by arranging a dry ribbon impregnated with a solid organic sulphur compound adjacent the surfaces and heating the compound to its decomposition temperature.  The compound may be thiourea, rubeanic acid, diphenyl thiocarbazone thiosemicarbazide, thiogycollic-beta-aminonaphthalide ditolylthiourea thiocarbanilide or ammonium thiocyanate.  A woven spun glass ribbon may be impregnated with the compound in admixture with a binder such as nitro-cellulose or collodion, e.g. a mixture of thiourea, nitrocellulose, ethyl lactate, oil of juniper and castor oil, which may be thinned with nitrobenzene or alcohol may be used.  Alternatively, the ribbon may be of paper, cloth or asbestos paper.  Prior to darkening the background surfaces of the matrices, indentations of stamped characters may be filled with white or light-coloured inert pigment, e.g. calcium sulphate.
Patent GB-336562-A (GB)
Title: Improvements in and connected with wireless systems for use in mobile stations
IPC: H04B1/034
Filed: 1929-07-08
Abstract: 336,562. Graham Amplion, Ltd., and Hodgson, A. D'A. July 8, 1929. Direct-call systems. - Comprises a combined wireless set and inter-communication telephone system for use on aircraft, water-craft, and vehicles. When the multiple switch 23, 20, 21. 22 is in the downward position the system is out of action. When the switch is in the upward position the wireless parts are out of action but the microphones 12, 14 can speak to the head telephones 11, 13 through the contact 20 and coupled coils 16, 17 and also to the loud-speaker 34 through contacts 23, 22 and amplifiers 33, 136. The microphones and head telephones may be allocated to the pilot and mechanic of an aeroplane, while the loud-speaker is for communication with passengers. When the switch is in the right-hand position the wireless receiver 38 is connected to the head telephones 11, 13 via 20, 21, while the loud-speaker circuit and the circuit coupling the head telephones to the microphones are broken at 23 and 20 respectively. When the switch is to the left, the wireless transmitter 30 is brought into action via switch-arm 21 so that it can be controlled through the amplifiers 33, 136 by the microphones 12, 14 which are still coupled via the switch-arm 20 to the head telephones 11, 13. Specification 137,367 is referred to.
Patent GB-1149363-A (GB)
Title: Multi-ply bags and a process and apparatus for the manufacture thereof
IPC: B31B50/80
Filed: 1966-05-11
Abstract: 1,149,363. Making gusseted muiti-ply bags. ALBEMARLE PAPER CO. 11 May, 1966 [11 May, 1965], No. 20958/66. Heading B5D. [Also in Divisions B8 and F2] A mandrel 51 (Fig. 3) about which outer plies of multi-ply tubing are folded and gusseted (Fig. 2, not shown) is hollow so that a seamless plastics inner tube, inflated by a captive bubble is gusseted by passage through the interior of the mandrel to emerge inside the outer folded tube. The ribs 73 on the mandrel may hold spaced transverse lines of adhesive, serving to unite the outer plies with the inner, away from the mandrel body. The composite tube may be drawn through the apparatus by driven rollers (64) (Fig. 2, not shown) and the outer plies are folded and gusseted by rollers (53), (55) and (56), and by shoes (75) (Fig. 2, not shown). The captive bubble may be maintained by an air cylinder floating within the tubing.
Patent GB-275673-A (GB)
Title: Improved apparatus for the concentration of graphite and other ores by flotation
IPC: B03D1/24
Filed: 1927-08-09
Abstract: 275,673. Robillard, J. F. M. R. de Aug. 9, 1926, [Convention date]. Flotation processes and apparatus.-Graphite and other ores are concentrated by flotation by placing them in or passing them through a coptainer formed with apertures or slots, and impinging on the outside of the container jets or streams of water which pass through the apertures or slots carrying air in with them. The apertures may be covered with gauze or other perforated or porous material. In the apparatus shown, water jets from a pipe 7 impinge on openings 4 in a trough 2 through which the ore pulp is passed from one end 1 with the aid of a screw 3, tailings being discharged at the end 8 and concentrates at a trough 9.