baber/WOPTO huggingface dataset:
Patent GB-1180675-A (GB)
Title: Device for Regularising the Speed of Electric Commutator Motors
IPC: H02K13/14
Filed: 1968-04-11
Abstract: 1,180,675. Control of D.C. motors. COMPAGNIE GENERALE D'ELECTRICITE. 11 April, 1968 [19 May, 1967; 16 June, 1967], No. 17710/68. Heading H2J. The speed undulation of a low-speed motor due to passage of the commutator-segments under the brushes is eliminated by producing an undulation in the supply voltage which is of the same frequency and amplitude as the undulation due to the commutator and in phase opposition thereto. A disc 1 keyed to the shaft of the motor 3 comprises alternate transparent and opaque sectors 4, 5, co-operating with a light source 6 and photo-cell 7 whose output is applied to the motor through a variable-gain amplifier 8. This amplifier is adjusted so that the voltage-undulation applied to the motor is equal to that due to the commutator and the disc is keyed on the shaft so that the undulations are in phaseopposition. In other arrangements, the photocell is illuminated by reflection from sectors of the disc, or a photo-resistive cell is connected in series with the motor. In a further embodiment, the disc is an insulator having conductive sectors equal in number to the commutator-segments and cooperating with brushes in series with the source of supply voltage for the motor, Fig. 3 (not shown). The member supporting the conductive sectors may be an insulating cylinder, Fig. 4 (not shown).
Patent GB-810021-A (GB)
Title: Gas meter
Inventor: ALEXANDER ARTHUR
IPC: G01F3/22
Filed: 1954-06-16
Abstract: 810,021. Gas meters. PARKINSON COWAN Ltd. [Formerly PARKINSON & COWAN Ltd]. June 14, 1955 [June 16,1954], No. 17719/54. Class 54. A gas meter has at least four single-acting diaphragms 55 which operate a driving spindle 30 and are directly coupled together in pairs so that the two diaphragms of each pair are forced to reciprocate together as a unit. The diaphragms are coupled together by rods or tubes 58 arranged to run on rollers 59 and drive the spindle 30 through connecting rods 60 and a single throw crank 61. This spindle drives a rotary valve 44 and, through a worm drive and a shaft 62, the index mechanism 63. Gas enters an upper space 15 of the casing through an inlet 17 and is allowed to flow by the rotary valve 44 through gasways, such as 26, 28, to each measuring chamber in turn and returns, again by way of the valve 44, to a lower space 16 connected to the outlet of the meter by a pipe (not shown) which passes through the space 15 and is sealed to a partition 13 by a rubber O-ring. The meter casing consists of three pressings 10, 11, 12. Specification 810,022 is referred to.
Patent GB-102947-A (GB)
Title: Life Preservers or like Life-saving Devices.
Inventor: EDMONDS SAMUEL PRESTON
IPC: B63C9/115
Filed: 1916-12-09
Abstract: 102,947. Edmonds, S. P. Dec. 20, 1915, [Convention date]. Body-attachments, buoyant. - In a life-saving device in which the front and back buoyant elements 1, 2, preferably filled with silk floss or the like, are connected by straps 4 between which the head is inserted, the upper edge of the back element 2 is straight, while the upper edge of the front element 1 is formed with a recessed part leaving projecting parts 3, which serve to receive and support the head when a person becomes exhausted. Straps 6 connected to intermediate parts of the back element are drawn through rings or buckles 8 on the front element and fastened. The waist tapes or straps 12 are secured to the lower outer corners of the back element and pass through rings 14 at the sides of the front element. When it is required to incline the head backwards, the lower end of the front element is folded upwards and secured in position by fastening the snap-hooks 9 over the rings 8. The rear element is preferably half the size of the front element. Specification 27664/13 is referred to.
Patent GB-698522-A (GB)
Title: Improvements in driving mechanisms for automatic switches
Inventor: ENESCOTT JOHN
IPC: H01H63/20
Filed: 1951-07-27
Abstract: 698,522. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. July 11, 1952 [July 27, 1951], No. 17806/51. Class 40 (iv). In a ratchet-and-pawl driven selector switch the reciprocating movement of the pawl 41 is obtained from a rotating cam 45. The impulsing of the rotary magnet 58 causes the lug 61 of the member 59 to disengage the member 52 from the abutment 54, thereby enabling a spring clutch 49 to transmit the drive from a constantly rotating shaft 46 to the cam 45 via the bevel-gears 47, 48. When the solenoid has moved the member 59 a short distance a cammed surface of this member engages an abutment 62 which deflects the lug 61 out of engagement with the member 52 which thus returns to its original position to disengage the clutch after one revolution irrespective of the length of the impulse applied to the solenoid. Similar arrangements are provided for the vertical movement of the switch. If the switch is to act as a hunting switch the abutment 62 is omitted to allow continuous movement of the switch while the solenoid is energized. Individual directly controlled electric motors may be provided for the shaft drives if desired instead of using the clutch device. The holding detent for the ratchet may be mounted on the switch frame by means of an eccentric screw for rapid adjustment thereof.
Patent GB-1499280-A (GB)
Title: Preparation of hexamethylene diamine
IPC: C07C209/48
Filed: 1976-04-30
Abstract: 1499280 Hexamethylene diamine DU PONT OF CANADA Ltd 30 April 1976 17819/76 Heading C2C Hexamethylene diamine is made from 2- cyanocyclopentanone and especially a mixture of adiponitrile and a small amount of 2-cyanocyclopentanone by treatment with hydrogen and ammonia at a temperature of 100-275‹ C. and a pressure of 300 to 600 kg./cm.<SP>2</SP> and in the presence of an activated iron oxide catalyst which may contain promoters. The mixture of adiponitrile and 2-cyanocyclopentanone may be obtained by suitable treatment of crude adiponitrile containing 2-cyanocyclopentylideneimine as an impurity.
Patent GB-237248-A (GB)
IPC: F16D1/04
Filed: 1925-07-13
Abstract: 237,248. Weimer, A. July 21, 1924, [Convention date]. Securing together machine elements for the transmission of rotary motion.-Relates to means for mounting cams &c. in a readily-detachable manner between bearings on a shaft, and consists in dividing the shaft and leaving a gap, which is normally bridged by a special form of coupling-sleeve. A sleeve f, slidably keyed to the shaft sections c, d between bearings b, is cut completely through at g along one end of a diametral plane and partially cut through at h along the other end. The sleeve is clamped to the shaft parts by nuts m, n engaging threads i, k, the active surfaces of which, as shown in Fig. 4, are inclined at 10‹-20‹ to the shaft axis. One of the cams &c. a may be secured on the sleeve by the nut n, the others being held on the shaft part d by a nut o, spacing-sleeves p, q being employed. To dismantle, the nuts m, n are slackened, the sleeve f moved to the left to expose the gap e, and the cams &c. a passed therethrough after removal of the nuts n, o.
Patent GB-440194-A (GB)
Title: Improvements in or relating to corrosion resistant alloy steels and articles made therefrom
IPC: C22C38/34
Filed: 1934-06-16
Abstract: A corrosion-resistant steel contains about 0,01-2,0 per cent of carbon, ,07-1,0 of phosphorus, ,15-5 of copper, ,35-6,0 of chromium, 0,35-6 of silicon, 0,3-8 (preferably 1-6) of chromium, not more than 0,5 of manganese, not more than 0,1 of sulphur and the rest substantially iron. Small amounts, for example, a fraction of 1 per cent of nickel, molybdenum nickel and cobalt may also be present. Tungsten may also be present.  The Specification as open to inspection under Sect. 91 describes a steel containing the same ingredients in the same proportions as the steel described above, but without chromium, and also one in which the whole or part of the silicon is substituted by aluminium, the content of the latter metal being 0,08-,75 per cent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-500653-A (GB)
Title: Improvements in and relating to electric wall socket outlets
IPC: H01R13/453
Filed: 1938-06-27
Abstract: 500,653. Two-part couplings. SAX & CO., Ltd., J., and ASTEN, T. A. June 27, 1938, No. 17940/37. [Class 38 (i)] The socket contacts of a wall socket are covered by a disc A biassed by a spring D to the closed position and located in a guide ring B attached to the front of the socket member and enclosed by a cover rim C that overlaps the periphery of the disc A., The disc is turned by means of the plug member and since there is no central pivot the friction at the periphery of the disc makes it difficult to turn by other means than the correct plug.
Patent GB-1115418-A (GB)
Title: Steel for hot work operations
IPC: C22C38/42
Filed: 1967-04-19
Abstract: A hot-work implement (e.g. die) steel consists by weight, of .C.0.3 - 0.45% .Mn.0.4 - 0.8% .Si.0.2 - 0.65% .Ni.0.4 - 1% .Cr.1.7 - 2.6% .Mo.0.55 - 1.2% .V.0.06 - 0.2% Fe and impurities (P 0.025% maximum, S 0.035% maximum) - balance.  The steel may be normalized from 1700 DEG F, water or oil quenched from 1650 DEG F and then double tempered to desired hardness.
Patent GB-200689-A (GB)
Title: Improvements in or in connection with discs for the wheels of motor cars and the like
IPC: B60B7/20
Filed: 1922-06-30
Abstract: 200,689. Wigg, J. June 30, 1922. Advertising on vehicle wheels. - A stationary conical advertising d i s c weighted at n is perforated at its centre to receive a casting or other fitting f mounted upon ball or other bearings provided on a pin b secured to the usual axle cap a of a road vehicle. The member f is secured to the disc m and is closed by a cup h which presses the bearing e against a distance piece d.
Patent GB-613199-A (GB)
Title: Improvements connected with the adjustment of rudder pedals on aircraft
IPC: B64C13/02
Filed: 1946-06-15
Abstract: 613,199. Hydraulic machines. HELLIWELLS, Ltd., and PICKRELL, S. H. June 15, 1946, No. 18044. [Class 69 (ii)] [Also in Groups XXIV and XXXIII] The setting of the rudder pedals of aircraft may be adjusted to suit the length of the pilot's legs without affecting the rudder, the pedals being locked after adjustment by closing solenoid-operated valves in a hydraulic interconnection of the pedals. The pilot is assisted in making the adjustment either by a device which automatically locks the pedals after they have moved to a position previously determined by the pilot or by a dial indicating the setting of the pedals. The block o<1> in Fig. 1 slides on a shaft o to control the rudder and is moved by a pedal a connected to the block o by a linkage comprising a link j, a cylinder c and a link k<1> connected to a pistonrod on a piston sliding within the cylinder c. Adjustment of the pedal a relatively to the block o thus involves movement of the piston. The spaces on either side of the piston in the cylinders c corresponding to the two pedals a are cross-connected as shown in Fig. 4 by conduits c<2> through a valve d<1> controlled by a solenoid d. Thus, when the valve d<1> is opened by operation of the solenoid d, the pistons c<1> may be moved in the cylinders c, in one direction by the pressure of the pilot's feet and in the other direction by a spring (not shown) in the cylinders, thus adjusting the setting of the pedals a. A Bowden cable g3 secured at g<4> to the cylinder c is wound round a drum on which may be mounted a dial indicating the setting of the pedals. Alternatively, the drum may form part of a mechanism which closes the switch operating the solenoid d to keep the pedals unlocked, until the setting of the pedals, as shown by the position of the drum, corresponds to the position to which the pilot has turned a control knob to predetermine the setting of the pedals.
Patent GB-813368-A (GB)
Title: Sorting device for items bearing information
IPC: B07C3/00
Filed: 1957-06-07
Abstract: 813,368. Letter or record-card sorting machines. STANDARD TELEPHONES & CABLES. Ltd. June 7, 1957 [June 12, 1956], No. 18140/57. Class 106 (1). In a sorting machine of the kind having a number of deflecting flaps W1-W4, Fig. 1, arranged along the path of feed of the record cards or other documents to be sorted, each card is sensed at 1 to derive a sort control indication, each sorting pocket has a stepping register appropriated to it and the control indication is applied to the first stage of the register corresponding to the pocket to which the card is to be sent. The control indications are stepped along the registers by the movement of the card by signals produced by photoelectric detectors in front of each flap and the final stage is arranged to open the flap to deflect the card into the pocket. The first flap is controlled by a stepping register of two stages of which the first is set when the card is sensed and the second stage, set when the stepping signal is applied from a detector S1 serves to open the flap. The second flap is controlled by a stepping register having three stages, the second and third of which are set in turn by signals from detectors S1 and S2 in front of the first and second flaps. In the same way the stepping registers for the third and fourth pockets have four and five stages respectively. Each detector, e.g. S1 gives a start signal on line S1a when the leading edge of the card obscures it and a final signal on line S1e when the trailing edge leaves it. The final signal is used to reset the flap after the card has passed into the pocket. In the form described the machine is applied to sort letters into one of four pockets depending upon the orientation of the letter, i.e. whether the stamp appears in the top right, bottom left corners on one side or the other. Record cards, cheques or other documents may be sorted in the same way the data sensed controlling the operation of the machine.
Patent GB-403137-A (GB)
Title: Improvements in or relating to regulating means for prime movers
IPC: G05D13/00
Filed: 1932-06-28
Abstract: 403,137. Speed governors ; motor power plant. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and MORRIS, P. D., Tarnside, Bilton Road, Rugby. June 28, 1932, No. 18268. [Classes 57 and 110 (iii).] A plant suitable for ship propulsion comprises a reciprocating steam engine 36 exhausting to a turbine 1 driving an alternating generator, coupled to a motor assisting propulsion, and also a direct current generator for auxiliary purposes. A speed governor 5 coupled to the turbine actuates a control valve 35 controlling hydraulic motors 11, 18 actuating a valve 16 admitting H.P. steam and a valve 17 admitting L.P. steam. If the speed falls below a minimum, the valve 16 is actuated to admit H.P. steam. If the speed rises above a maximum, the valve 17 is actuated to reduce the L.P. steam and at the same time allow some to be by-passed to the condenser 37.
Patent GB-380839-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N3/04
Filed: 1931-06-24
Abstract: 380,839. Television transmitters. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Gray, F. ; 243, West 101st Street, New York, U.S.A.) June 24, 1931, No. 18282. Convention date, June 28, 1930. [Class 40 (iii).] In a television system comprising a light source 1 projecting a beam of light on a scanning- disc 3 with apertures which produce strips of light illuminating areas of an object 7, the scanning-disc has two or more rows 4, 5 of spirally arranged apertures to illuminate distinct areas of the object, and optical means focused on the strips of illumination direct the reflected light to different light-sensitive devices 10, 12. A lens 8 projects the reflected light on additional rows 9, 11 of apertures in the scanning-disc containing prisms, Fig. 4 (not shown), which divert the light reflected from the respective areas to the associated lightsensitive device. Each light-sensitive device is associated with an individual transmission channel 17, 18.
Patent GB-220432-A (GB)
Title: Improvements in spark plugs
IPC: H01T13/16
Filed: 1923-07-16
Abstract: 220,432. Rofe, T. E., and Varvel, S. Le F. July 16, 1923. Sparking-plugs.-Either of the electrodes may be hollow, with non-return valves 24 therein which open on the suction stroke. A cup 28 may be provided for holding starting fluid, the exits 23 from which are also controlled by the non- return valve. The inner end of the central tube may be plugged, lateral openings being provided. The earthed terminal may be in the form of a bridge 15. The tubular electrode is formed with a collar 11 seated within a recess in the insulator.
Patent GB-1421010-A (GB)
Title: Fuel regulating systems especially for the combustion chamber of an aerojet engine
IPC: F02C9/40
Filed: 1973-04-17
Abstract: 1421010 Valves SOC NATIONAL D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 17 April 1973 [18 April 1972] 18331/73 Heading F2V [Also in Division F1] The subject matter of this Specification is similar to that disclosed in Specification 1,421,009, but the claims are concerned with the valve 20 which controls return flow of the fuel. The valve comprises a hollow valve member slidably mounted on a shaft 27 and operated by a bellows 29 which is subjected externally to fuel delivered from passage 4 and liable to contain solid impurities, and internally to fuel which has been filtered, as by filter 31. Thus jamming of the valve member on the shaft by the impurities is avoided. The valve member controls the flow of fuel from inlet chambers 23, 24 to a central outlet chamber 25 communicating with return duct 21.
Patent GB-382255-A (GB)
Title: Improvements in neckwear
IPC: A41D25/16
Filed: 1932-06-29
Abstract: 382,255. Neckties. LAPHAM, A. T., 6, Well Street, Jewin Street, London. June 29, 1932, No. 18428. [Class 141.] A necktie is made capable of being tied at either end and comprises two end pieces A, B substantially identical in shape, each being cut at an angle of 45‹ with the warp and weft threads, interlining members E, F, similarly cut on the " true bias," the pieces A, B being connected by suitably shaped pieces C, D and a neck band insertion G. The pieces are sewn up to the finished form shown in Fig. 3. An elastic strip may be stitched between the material of the necktie and the interlining.
Patent GB-1418178-A (GB)
Title: Production of aqueous solutions
IPC: C08F2/00
Filed: 1973-04-18
Abstract: 1418178 N - vinylpyrrolidone polymerization BADISCHE ANILIN- & SODA-FABRIK AG 18 April 1973 [19 April 1972] 18620/73 Heading C3P N-vinyl pyrrolidone is homo- or copolymerized in an aqueous medium, wherein the polymerization catalyst is supplied in a plurality of portions or continuously in the form of a suspension of a water-insoluble free-radical polymerization catalyst in an aqueous solution of an N-vinyl pyrrolidone polymer, the monomer concentration being 5 to 25% at the beginning of the polymerization and the monomer/ polymer concentration not exceeding 25% throughout the polymerization. In the examples N-vinyl pyrrolidone is copolymerized with methyl methacrylate, acrylamide, acrylic acid or vinyl acetate using catalyst suspensions of azobisisobutyronitrile in aqueous solutions of the same copolymers.
Patent GB-613333-A (GB)
Title: Improvements in or relating to telegraph keys
IPC: H04L15/08
Filed: 1946-01-20
Abstract: 613,333. Tapping keys. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WASSELL, H. J. H. June 20, 1946, No. 18626. [Class 38 (v)] In a telegraph key both the range of movement or " play " of the key and the force of the return spring are capable of adjustment, the settings being shown by indicators. A key bar 1 consisting of upper and lower L- shaped sections 1a, 1b, held together at the centre by the rivets 22 and pivoted at one end by the knife edges 2, carries the contacts 19, 24 mounted on the sections 1a, 1b respectively, co-operating with the fixed contacts 17, 23. The upward return force on the key, provided by a spring 3 of which the end 4 engages in a loop 5 mounted on the bar 1, is adjusted by the rotation of an indexed knob 6, thus causing the rotation of a collar 8 into which is secured the anchored end 7 of the spring 3. The collar 8 is held in position by a pin 9 engaging in a ring of holes in the side of the base 10 and before adjusting the spring, the knob 6 is pushed inwards to disengage the pin. An operating knob 16 and a collar 12, having the upstanding pins 13, screw on a stem 11, of which the square head 27 is situated between the members 1a, 1b. The distance rods 28, 29 are free to slide in diagonally placed holes in the member 1a and the head 27. A knurled skirt 15, loose on the stem 11 has a ring of holes 14 into which the pins 13 engage. The " play " of the key is adjusted by slacking off the knob 16 and then screwing down the skirt 15 and with it the collar 12, which forces the members 1a, 1b apart, via the rods 28, 29, a zero adjustment being made initially, index marks on the skirt indicate the setting. The key-arm 1 is preferably made of aluminium and has preferably a natural period of transverse vibrations above 4000 c.p.s.
Patent GB-981698-A (GB)
Title: Production of halogenated organic compounds
IPC: C07C17/275
Filed: 1962-05-15
Abstract: Halohydrocarbons are prepared by passing a halogen-substituted paraffin and an olefinically unsaturated compound over a halogenated catalyst obtained by contacting a halogenatable inorganic oxide with a compound containing at least two halogen atoms on the same carbon atom; the constituent parts of the haloparaffin add across the double bond.  Specified halogenatable oxides are alumina, boria, silica, titania, zirconia and ferric oxide; specified halogenating compounds are CCl4, CHCl3, CH2Cl2, CCl2F2, CCl3Br, COCl2, CSCl2, CH2F2, CHF3 and CF4.  Before the halogenation the inorganic oxide may be treated with an alkali or alkaline earth metal compound.  The catalysts of Specifications 953,187 and 981,691 may be used.  In an example CHCl3 and C2Cl4 are reacted to give CHCl2.CCl3.CCl3.  Other specified reactants are CCl4, CH2Cl.CHCl2 and (CH3)2CCl.CH2CHCl; and C2HCl3, CHCl = CHCl, C2H4, C3H6 and higher olefines.  Reference has been directed by the Comptroller to Specification 921,796.
Patent GB-867290-A (GB)
Title: A process for the preparation of visnadin from ammi visnaga
IPC: C07D493/04
Filed: 1959-06-01
Abstract: Visnadin, of formula:  <FORM:0867290/IV (b)/1> is extracted from umbels of Ammi Visnaga by treating the ground dried umbels, preferably stripped of their seed, with petroleum ether of b.pt. lower than 110 DEG C., concentrating the solution and then crystallising crude visnadin from the solution.  The concentration is preferably effected in two stages, firstly by heating in a water-bath, then after quiescent period at about 20 DEG C., separating gummy constituents and continuing the concentration under vacuum.  The resulting crude visnadin is further purified either by dissolving in cyclohexane or petroleum ether (b.pt. 70-100 DEG C.) treating the hot solution with activated charcoal, filtering and allowing the visnadin to crystallise at -10 DEG C. for about 24 hours, or by dissolving it in a good solvent for visnadin, e.g. tetrahydrofuran, dioxane, ether, methanol, ethyl acetate, benzene, acetone, ethylene glycol, chloroform, pyridine or dimethyl formamide, treating the solution with activated charcoal, filtering and then adding as precipitation agent a second solvent miscible with the first, e.g. pentane, hexane, heptane or petroleum ether (b.pt. 35-70 DEG C.) and allowing the visnadin to crystallise at about -10 DEG C. A detailed example is given.