baber/WOPTO huggingface dataset:
Patent GB-1425309-A (GB)
Title: Process for the preparation of 5-nitro-1,4-naphthoquinone
IPC: C07G11/00
Filed: 1974-07-26
Abstract: 1425309 5 - Nitro - 1,4 - naphthoquinone NIPPON SHOKUBM KAGAKU KOGYO CO Ltd 26 July 1974 [31 July 1973 22 Oct 1973 28 Dec 1973] 33258/74 Heading C2C 5 - Nitro - 1,4 - naphthoquinone is prepared by nitrating 1,4-naphthoquinone with nitric acid in the presence of sulphuric acid under conditions such that the dehydrating value of sulphuric acid is at least 4, and adding the reaction. mixture to an aqueous medium to precipitate the product, the dehydrating value of sulphuric acid being defined as (the total weight of sulphuric acid in the reaction system) divided by (the total weight of water in the reaction system). The reaction may be carried out in the presence of sulphur trioxide preferably in an amount sufficient to maintain the reaction system substantially free of free water.
Patent GB-1015108-A (GB)
Title: Production and purification of polypropylene
IPC: C08F6/00
Filed: 1964-08-14
Abstract: Atactic polypropylene and catalyst residues, are removed from polypropylene made by conventional "low-pressure" techniques, by extraction with an azeotropic mixture of isopropyl alcohol and heptane containing a small amount of hydrogen chloride.  The Specification contains a flow-diagram of a continuous process involving the bulk polymerization of propylene in the presence of a catalyst consisting of TiCl3 cocrystallized with AlCl3, and (C2H5)2AlCl, removing residual liquid propylene by flashing in a cyclone separator, extracting the polymer with the above aeotropic mixture, recovering the mixture, and washing the polymer until free of acid e.g. with NaOH.
Patent GB-194012-A (GB)
Title: Improvements in children's scooters, cycles, velocipedes and the like
IPC: B62K3/08
Filed: 1921-12-12
Abstract: 194,012. Field, E. D. Dec. 12, 1921. Driving-chains, adjusting; spring devices; bicycles; foot cycles. - Children's scooters, cycles, velocipedes &c. are constructed of a main member a of one length of material, having rear forks in the form of a U-shaped piece or two longitudinal bars b attached thereto by two clips l, k. In the case of a chain-propelled vehicle these clips may allow for adjustment of the chain, the clip k being adjustable along the member a and clip l allowing the forks to slide by means of slots c. The pedal cranks are carried in a lug f rigidly fixed to the member a. The rear forks may be twisted as shown at h to form flat springs, and the frame may be stengthened by an upper stay-bar e. If desired, the clips l, k may both be disposed upon the substantially horizontal portion of the main member.
Patent GB-1072777-A (GB)
Title: Chair
IPC: A47C7/38
Filed: 1964-08-14
Abstract: 1,072,777. Seats. J. G. A. BERG. Aug. 14, 1964, No. 33329/64. Heading A4J. The arms rests 11 of a chair, are formed to provide a support for the elbow of an occupant in both forwards, and backwards and laterally inclined positions of his upper arms. The arm rests 11 are extended backwards beyond the front side of the back rest 1, 2, the front portions inclined upwards and forwards, and the back portion of the arm rests 11 may be broadened and inclined upwards. Also the outer edges of the arm rests 11 may be curved upwards or they may be formed with a hard padded head, Fig. 12 (not shown), along the outer edge and a softer padding inside. The seat 3 and back rests 1, 2 may be individually angularly adjustable. A Windsor chair and an easy chair with a padded head rest and neck rest are described.
Patent GB-340362-A (GB)
Title: An improved device for smoking cigarettes and the like
IPC: A24F13/14
Filed: 1929-11-04
Abstract: 340,362. Cigarette holders. TURNER, F., 22, Rufford Avenue, Edwinstowe, Nottinghamshire. Nov. 4, 1929, No. 33525. [Class 130.] A device for enclosing a cigarette or tobacco within a tube for smoking has the tube formed with a number of stepped longitudinal slots 7 and with a square slotted closed end 5, or with a removable cap. Specifications 256,086 and 318,215, [both in Class 130, Tobacco], are referred to.
Patent GB-1478293-A (GB)
Title: Piston having a re-entrant bowl type combustion chamber for an internal combustion engine
IPC: F02B3/06
Filed: 1973-07-13
Abstract: 1478293 Diesel engine piston combustion chambers PERKINS ENGINES Ltd 9 July 1974 [13 July 1973 28 July 1973] 33567/73 Heading F1B [Also in Division B3]  A sheet metal, e.g. stainless steel, shield 28 has a radially outwardly extending rim 30 located in a recess 32 in the piston crown 20 and a re-entrant portion 36 engaging the wall of the piston cavity 24 to retain the shield in position. The shield may cast-in position on a multi-piece core when casting the piston or the portion 36 can be deformed into engagement with the cavity wall by a roller tool (42), Fig. 3 (not shown). The piston can be rotated past the tool or the latter can be arranged to orbit inside the cavity 24 to effect shield deformation. The piston lip 26 may have stress relieving notches 38. The outer edge of the rim 30 may be chamfered, Fig. 4 (not shown), to enable some of the material of the piston to be deformed over the chamber (31) and the outer edge of the portion 36 may dig into the cavity wall, be rolled into a depression (48), Fig. 5 (not shown), in the wall or have tabs (52), Fig. 6 (not shown), deformed into a groove (53) in the wall. The shield may be bowl-shaped, Fig. 7 (not shown), and located in a cylindrical cavity 24 in the piston to define an air gap (40) with the cavity wall outwardly of the cavity opening (62) defined by the shield.
Patent GB-1158272-A (GB)
Title: A Reversible Rotary Hydraulic Fluid Motor.
Inventor: BIASI CHARLES PHILIP DE
IPC: F03C2/30
Filed: 1966-07-26
Abstract: 1,158,272. Alternative road/rail vehicles. C. P. DE BIASI. 26 July, 1966, No. 33663/66. Heading B7D. [Also in Division F1] A vehicle wheel driven individually by a rotary hydraulic motor (see Division F1) comprises a plate 98, Fig. 9, secured to the rotary housing 14 of the motor and formed with a base portion 104 carrying a pneumatic tyre 108 for vehicle operation over ordinary terrain and a further plate 142 formed with a rim 144 which co-operates with a rail 146. The radial dimension of the plate 142 is less than that of the tyre 108 to permit alternative operation of the vehicle on a railway track or ordinary terrain without alteration to the wheel. If desired, the plate 142 may be entirely removed. A braking assembly including a brake shoe 114, Fig. 6, engageable with a brake lining 112 secured inside the base portion 104 may be fitted. Braking is effected hydraulically by means of double-acting pistons 122.
Patent GB-324741-A (GB)
Title: Improvements in and relating to tractors
IPC: B60K17/30
Filed: 1928-11-17
Abstract: 324,741. Horn, V. A. van. Nov. 17, 1928. Axle structures.-In a tractor with all four wheels driven, the front axle casing comprises a, central ring portion 7, Fig. 5, and covers 8, 9 having fore-and-aft extensions 10, 11 pivoted in frame brackets 12, 13. The axle-shafts 21 are driven from a longitudinal shaft 6.
Patent GB-868103-A (GB)
Title: Incandescent lamp with screen means
IPC: H01K1/26
Filed: 1958-10-22
Abstract: 868,103. Electric incandescent lamps. GENERAL ELECTRIC CO. Oct. 22, 1958 [Oct. 28, 1957], No. 33803/58. Class 39(2). An incandescent lamp, especially a high voltage projection lamp, comprises a sealed glass envelope, a pair of parallel lead-in conductors 8, a planar type filament 7 between the conductors and lying in the plane passing through them and a screen 20 for preventing blackening of the bulb, the screen being of flat angular form with the apex 21 adjacent the upper margin of the filament 7, one portion 22 of the screen extending beyond the filament in a plane parallel thereto and the other portion 23 extending away from the filament at an acute angle, the width of the screen being approximately the same as that of the filament. The lamp may be of the type described in Specification 435,663. The screen is of fine wire mesh e.g. of tungsten and is supported by wires 25 from a ceramic bridge 12 joining the lead-in conductors 8. The screen may be connected to one of the lead-in conductors or by a separate conductor to the positive high voltage. It serves to collect particles vaporized from the filament and also for absorbing heat and thereby preventing blistering of the bulb.
Patent GB-947736-A (GB)
Title: Improvements relating to coolant circulation in internal combustion engines
IPC: G05D23/13
Filed: 1961-09-21
Abstract: 947,736. Cooling systems for internal-combustion engines. DAIMLER-BENZ A.G. Sept. 21, 1961 [Sept. 23, 1960], No. 33916/61. Heading F4U. [Also in Division F2] In combination with the cooling system of an I.C. engine, apparatus for regulating coolant circulation, comprises a main regulating and shut-off valve device operated by means responsive to the temperature of the coolant, which device regulates the relative distribution of coolant from an inlet 3 between two paths leading from it, one path 21 through the radiator and the other path 19 bypassing the radiator, and an auxiliary regulating and shut-off valve device by the manual operation of which the distribution of coolant between the two paths can be controlled, this auxiliary device, which is arranged in one path 19, being adapted, in one end position, to open the path 19 and, in another end position, to close the path 19, but to open a path through a passage 24 which discharges into the other path 21. As shown, the slidably mounted hollow cylindrical auxiliary valve member 7, operated by hand wheel 15, seats on one end of the similarly mounted hollow cylindrical main valve member 4 which has an open passage 6 in this end and co-operates at the other end with a fixed seat to control flow into the radiator path 21. The temperatureresponsive wax-containing capsule 9 operates the main valve through a movable plunger 17, a spring 10 loading the valve toward the fixed seat through links 12. In the event of failure of the main valve 4, the auxiliary valve 7 can push it on to the fixed seat, thereby shutting off flow through the main valve to the radiator. Thereafter, the auxiliary valve is operable to divide the flow through open passage 6 as required between the by-pass 19 through the co-operating seats 22, 23 on the respective valves, and the radiator passage 21 through the ported passage 24 controlled by the outer end of the auxiliary valve.
Patent GB-1156122-A (GB)
Title: Improvements in or relating to Axial Piston Type Pumps and Motors.
Inventor: MOLLY HANS
IPC: F01B3/00
Filed: 1966-07-28
Abstract: 1,156,122. Reciprocating pumps and motors. H. MOLLY. July 28, 1966 [Aug. 7, 1965], No.33993/66. Heading FIA. In an axial piston pump or motor the pistons are connected to the swash-plate by ball and socket type joints, the centres of which are displaced by a distance (e) from the piston axis in the direction of the line from the centre line of the cylinder block to the point on the swash-plate nearest the block. The cylinder block rotates and the pistons are non-rotatable; the cylinder bores rotate relative to the pistons which include passages controlling in and out flow.
Patent GB-1221791-A (GB)
Title: Fertilizer compositions
Inventor: LITTLE DAVID JOHN
IPC: C01C1/12
Filed: 1967-07-25
Abstract: 1,221,791. Mixtures of ammonium nitrate and ammonium phosphate. FISONS FERTILIZERS Ltd. 4 July, 1968 [25 July, 1967], No. 34002/67. Headings C1A and C1B. Molten mixtures of ammonium nitrate and ammonium phosphate are prepared by reacting, in a first stage, phosphoric and/or nitric acid with gaseous or aqueous ammonia in the presence of nitrate and phosphate ions, the ammonia being in an amount in excess of that which can be absorbed by the reaction mixure; and contacting, in a second stage, the ammonia which is not absorbed in the first stage in further nitric and/or phosphoric acid which is intended for use in the first stage, both stages being carried out at sub-atmospheric pressure, and at the boiling point of the materials of that stage. The pressure may be 25-250 mm. Hg. The ammonium phosphate produced has an N: P ratio of 0.9 : 1 to 1.8 : 1, and the mixture may have an N: P 2 O 5  ratio of 1: 2 to 3 : 1. The amount of water added in the first stage is preferably 10-20% by wt., based on the total weight of materials fed to this stage. The reaction may be between ammonia and phosphoric acid, nitrate ions being added as ammonium nitrate, when the phosphoric acid used may be from 30-55% P 2 O 5  by wt. The molten mixtures may be granulated, prilled or flaked for use as a fertilizer, when potassium salts, e.g. KCl, K 2 SO 4 ; ammonium sulphate, urea or trace elements may be added.
Patent GB-434516-A (GB)
Title: Traversing means for yarn winding machines
IPC: B65H54/50
Filed: 1934-03-05
Abstract: 434,516. Yarn winding machines. McKEAN, J. O., 82, Court Street, Westfield, Massachusetts, U.S.A. March 5, 1934, No. 34100. Divided out of 433,478 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 1, 1934, and addition to 402,015 and 433,478. [Class 120 (ii)] The yarn-engaging grooves 6 .. 10 of the yarn-traversing element 4 of the parent Specification as improved upon or modified by Specification 433,478 are made to increase in pitch from the larger to the smaller end of the tapered element.
Patent GB-310069-A (GB)
Title: Improvements in the oxidation of aliphatic compounds of high molecular weight
Filed: 1927-12-17
Abstract: 310,069. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 17, 1927. Oxygenated organic compounds; acids; esters. -The oxidation of aliphatic compounds of high molecular weight with a gaseous oxidant is conducted at a temperature of about 80-180‹ C. in the presence of a catalyst consisting of one or more salts of an organic acid with an alkalineearth metal, magnesium, or aluminium, but in the absence of free alkalies or alkaline earths. Suitable oxidizing agents are oxygen or oxygencontaining gases and/or nitrogen oxides, and suitable catalysts are the stearates, oleates, abietates, anthranilates, and cinnamates of the metals specified. The reaction vessel may contain inert fillers such as aluminium or ceramic materials. In one example, soft paraffin wax in which a small amount of barium stearate has been dissolved is treated with air at 150‹ C. in a tower filled with aluminium rings; a product of acid value 86 and saponification value 236 is obtained. In another example, conducted similarly, calcium or barium cinnamate is used as catalyst and the product has an acid value 103 and a saponification value 130. Specification 156,141 is referred to.
Patent GB-992368-A (GB)
Title: Memory apparatus
IPC: H01F41/34
Filed: 1963-08-29
Abstract: A substrate on which a magnetic material is deposited to form a magnetic memory device is made by coating a highly polished glass sheet with a coating of a non-magnetic metal, e.g. Cu, which is then stripped off and the amorphous thin metal layer is then coated with the magnetic material, e.g. Ni/Fe alloy, on the face formed on the glass.  The glass sheet may be pre-coated with Ag, Au, Ni, Pd or Cr after sensitizing with PdCl2, whereby oxidation of the copper film is prevented.  The glass sheet is polished with a paste of CaCo3 and water, and the nickel or other non-oxidizing coating up to 20m  thick deposited by the electro-less method. The thin copper film is then formed by vapour deposition or electroless deposition, and thickened to 10m  by an electrolytic coating.  The duplex metal layer is then stripped off and coated with a magnetic layer.
Patent GB-388512-A (GB)
Title: Improvements in and connected with road construction
IPC: E01C11/16
Filed: 1931-12-12
Abstract: 388,512. Road pavings. SHORTHOSE, G. H., Babcock House, Farringdon Street, London. Dec. 12, 1931, No. 34531. [Classes 87 (i) and 107.] A metal plate for road construction is provided with flanged sides 2 and longitudinal and transverse ribs 3, 4 defining pockets 5 for the reception of paving blocks or fillings of concrete or other material, and the flanged sides are formed with bolt holes for enabling the plates to be bolted together. The pockets entered by the bolts are adapted to be filled with removable wood blocks. The plates may be of cast-iron, pressed steel, &c., and the bolt holes may be of elongated type. A bitumen joint may be provided between the plates.
Patent GB-1400370-A (GB)
Title: Polyacrylate surface active agent
IPC: C11D1/04
Filed: 1973-07-19
Abstract: 1400370 Polymeric surfactants K YAMADA 19 July 1973 [26 July 1972] 34558/73 Heading C3P Polymeric surfactants of the formula in which R is a C 7-20  aliphatic hydrocarbon group, X is -CHOH- or -CH 2 O-, R<SP>1</SP> is hydrogen or C 1-10  alkyl, m is 1-200 and the A groups are -COOH or an alkali or alkaline earth metal or ammonium salt thereof, or an alkali or alkaline earth metal or ammonium salt or mineral acid or carboxylic acid salt thereof, a radical of the formula where n is 2 or 3 and p is 1-4 or an alkali metal, alkaline earth metal, ammonium, mineral acid or carboxylic acid salt thereof or a combination of any such groups with -COOCH 3  groups are obtained by polymerizing an acrylic ester in the presence of a C 5 -C 21  alkanol modifier and reacting the product with an appropriate saponifying, amidating or hydrazidating agent.
Patent GB-904160-A (GB)
Title: Improvements in gas-blast electric circuit interrupters
IPC: H01H33/915
Filed: 1960-10-10
Abstract: 904,160. Fluid-blast switches. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 10, 1960 [Nov. 18, 1959], No. 34698/60. Class 38 (5). A fluid switch compris clue hou ate stat tending through one of the  hou assembly carrying the coope: within the earthed housing 45, and 13, wall of the earthed housing 45 for actuating the assembly. The contact rod 30 is fixe whi mounting boss 33 for adjustment purposes. The puffer assembly comprises an insulating cylinder 17 movable over a fixed piston 18 carried at the end of a fixed tubular insulating guide 19. The movable contact, comprising contact fingers 27 and arcing contact 28, is carried at the end of the cylinder and is connected to a movable guide rod 36 which engages conducting fingers 37. An insulating nozzle 88 is also carried by the end of the cylinder 17 to guide the fluid-blast from the cylinder on to the arc drawn when the contacts are opened. The casing may be sealed and contain sulphur hexafluoride at several atmospheres pressure. Activated alumina may be provided (at 110) to absorb moisture and decomposed arc products. When the switch is used in an overlapping differential protective arrangement, Fig. 6, current transformers 43, 44 are arranged on the earthed casing 45 and may be provided with insulating outer casings 43a, 44a so that fault current to earth, due to a flash-over on an insulator 34 or to a fault occurring within the housing 45, passes between the current transformers 43, 44 and causes the operation of both differential relays 54, 55 and the opening of the switch together with the switches 46, 47 on both sides of the system. A fault 83 or 84 on a feeder 48 or 49 causes the opening of the switch and the appropriate switch 46 or 47 only. In an alternative arrangement, Fig. 7 (not shown), the current transformers may have an outer conducting shield so that a flashover on an insulator 34 only results in the opening of the two switches.
Patent GB-347224-A (GB)
Abstract: 347,224. Fluid and thermally actuated valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 24, 1930, No. 2499. Convention date, Sept. 30, 1929. [Class 135.] A valve controlling the supply of gas to a burner is actuated by the pressure in the pipe supplying the pilot burner the outlet from which is controlled by a thermally-actuated valve so that the main valve is maintained open so long as the pilot flame is burning. In the form shown in the Figure the main valve f is carried by a spring-loaded diaphragm h clamped between two parts of the casing. The chamber k above the diaphragm is connected through a throttle r with the inlet side of the main valve and through a pipe F with the pilot burner s. This burner has an axial passage t controlled by a valve actuated by a bimetallic strip wand a transverse passage opening beneath the strip so that the match used for initially heating the strip also ignites the pilot flame. The diaphragm may be replaced by a light piston.
Patent GB-1075102-A (GB)
Title: Alternating current generator excitation systems
Inventor: FELTBOWER BERNARD
IPC: H02P9/38
Filed: 1962-09-11
Abstract: 1,075,102. Automatic voltage control. ENGLISH ELECTRIC CO. Ltd. Dec. 11, 1963 Sept.11, 1962], No. 34735/62. Heading G3R. [Also in Division H2] An A. C. generator excitation system includes two rectifying means 16, 21 having their output circuits connected in parallel for supplying D. C. to the generator excitation winding 11, means for supplying the first rectifying means 16 with electric power derived directly from L. V. tappings 17 on the generator output winding 12 the tappings being so arranged that the voltage developed at them is suited to the excitation winding 11 without the need for voltage transformation when the generator develops its normal output voltage, and means for supplying the second rectifying means 21 with power derived from a secondary circuit of a current transformer 25 of which a primary circuit is associated with an output circuit 13 connected to the output winding 12 whereby under fault conditions the excitation winding 11 is supplied automatically from the output circuit; this maintains the fault current for a time sufficient for an overcurrent protective device to operate. As shown, the transformer secondary windings 24 are normally shorted by a 2-pole contactor 26 whose operating coil 27 is connected across the output circuit 13 whereby the fall in voltage consequent upon a fault drops out the contactor to permit energization of the second rectifier 21, and in modifications the contactor is replaced by anti-parallel siliconcontrolled rectifiers (29) Fig. 2, or a star-connected resistive load (31) Fig.3. The current transformer primary circuit alternatively may be on the alternator side of a circuit breaker 14 or is star point connections of the winding 12. The network 16 includes three silicon-controlled rectifiers 18 supplied by an automatic voltage regulator 20 arranged to effect closed-loop control of the alternator output voltage in accordance with a reference signal, and the system also includes a starting switch 23 which automatically opens when the output voltage has risen to half its desired value.
Patent GB-1387236-A (GB)
Title: Implement for affixing metal pick to flower stem
IPC: B25B27/14
Filed: 1973-07-20
Abstract: 1387236 Crimping tool A J SCOTTO 20 July 1973 [30 May 1973] 34764/73 Heading B4W A hand tool for crimping a metal spike 52, Fig. 13, to the stem of a flower 56, comprises a pair of pivotally connected handle levers 12, 14, a frame 48 connected to the pivot 16, track means 72 fixed to the frame for guiding the metal spike from a storage position to a clamping position, jaw means 34 (36) connected to the frame 48 and to the levers 12, 14 for crimping the spike, feed means 78 operatively mounted on the track means for displacing the spike to the clamping position and actuating means 80 mounted on the frame for operating the feed means 78. The jaws 34 (36) comprise interleaved plates 40 and spacers 42 the plates 40 being suitably spaced to engage and crimp laterally projecting arms 68 of the metal spike; the jaws are pivoted on the frame by respective pivot pins 46 and are connected to the ends of levers 12, 14 by further pivot pins 38. A magazine 76 for nested spikes 52 is provided by two projecting arms 82, a spring loaded rod 98 with catch 94 being provided to bias the nested spikes towards the track 72. The handle levers 12, 14 are provided with co-operating cutting edges 58, 60 for cutting the stem of the flower.