baber/WOPTO huggingface dataset:
Patent GB-1274664-A (GB)
Title: Improvements in and relating to rotor windings of dynamo-electric machines
Inventor: EASTON VIVIAN
IPC: H02K19/26
Filed: 1968-05-15
Abstract: 1,274,664. Synchronous machines. C. A. PARSONS & CO. Ltd. 9 May, 1969 [15 May, 1968], No. 23140/68. Heading H2A. In a synchronous machine having a rotor with two separate windings which are D.C. excited from separate sources, a change-over controller sensitive to the rotor angle, i.e. the angle between the magnetic axis of the rotor and the effective flux controls the excitation current to the windings such that over a predetermined range of rotor angles, equal excitation currents are supplied and when the load angle moves outside said range unequal currents are supplied to maintain a substantially constant rotor angle. By controlling the excitation in this manner it is stated that a more economic use is made of the conductor material of the windings and the windings can be designed for a lower maximum current. The windings A, B may be of diamond coil form and are brought out to separate sets of slip rings connected as shown to D.C. sources A1, B1 controlled by excitation controllers D, C. In this arrangement the machine is a turbogenerator and winding A supplies mainly the synchronizing torque and winding B the output of the machine. The controller C is therefore responsive to the output voltage of the machine and within the predetermined range of load angles referred to, the change-over controller E, which is connected to controller D, responds to a current signal from winding B. Outside said range, controller E responds to the rotor load angle. The windings are shown applied to a cylindrical rotor but they are equally applicable to a salient pole rotor, one winding being provided in this ease in slots in the pole shoes.
Patent GB-1135290-A (GB)
Title: Improvements in or relating to electron beam apparatus
IPC: H01J37/305
Filed: 1966-05-25
Abstract: 1,135,290. Electron beam furnaces. AIR REDUCTION CO. Inc. 25 May, 1966 [18 June, 1965], No. 23277/66. Heading H1D. In an electron beam furnace the beam from an electron source 13 situated below the crucible 47, Fig. 1, or to one side below a lateral shelf 29, Fig. 7, is passed through a focusing and deflecting magnetic field which first increases in strength and is then constant either over the remaining portion of the path or over an intermediate region which is followed by a region in which the field decreases in strength or is of constant strength but lower magnitude. The flux lines of the field of increasing in strength increase in curvature in the direction of the electron source. As shown in Fig. 1, the magnetic system comprises two pairs of polepieces 23, 23a and 63, 63a, energizing coils 51, 53, 55 and a ferromagnetic base plate 49. The source 13 is situated in the fringe field of polepieces 23, 23a and the field increases to a region of constant intensity between parts 70, 70a of the polepieces 23, 23a. A weaker but constant field is provided between polepieces 63, 63a. In Fig. 7 the polepieces 77 shaped as shown are spaced from the side limbs of a U-shaped ferromagnetic support 89 by a plurality of coils shown in dotted lines. The ampere-turns of these coils may be individually varied. In another embodiment with a rotating crucible 101, Fig. 8, in which due to centrifugal force the molten material is urged into a slot in the inside wall of the crucible, a plurality of electron sources 13 are provided, each source being associated with an electromagnet comprising angularly disposed polepieces 109, 109a and parallel pole faces at the ends of the polepieces. In a further embodiment, Fig. 11 (not shown), the beam passes between parallel polepieces of a U-shaped electromagnet. Guidance is given in the Specification as to the extents of the various magnetic field regions along the beam path.
Patent GB-590345-A (GB)
Title: Improvements in portable structures adapted for use as dwellings
IPC: B60P3/34
Filed: 1944-11-23
Abstract: 590,345. Portable dwellings; hospitals. GORE, W. A. C. SAUNDERS-KNOX-. Nov. 23, 1944, No. 23300. [Class 20 (i)] [Also in Groups XXXII and XXXIII] A dwelling, temporary hospital, or sanatorium carried upon a wheeled chassis or barge has inner and outer shells 1, 2 which can be housed within each other and which are pivoted centrally at 5 so that they can be turned to lie at an angle to each other, thereby providing additional accommodation. The outer component 2 is open-sided at 11 and curtains, flaps or roller blinds are used to complete the side walls at 11 when the components are in the open position shown in the Figure. Folding beds are ,carried in cupboards in the side walls of the inner body, the doors of these cupboards forming tables when lowered into the compartments 3 provided by the outer body. The whole structure may be rotatably mounted upon its chassis, jacks 14 being provided to support the wings. Roller-bearings and rack-and-pinion gear may be provided to facilitate rotation of the various parts. A greater number of components than two may be used and filling pieces for roof, wall and floor gaps may be used to complete a circular or polygonal structure.
Patent GB-1247981-A (GB)
Title: Process for the production of isophthalic and terephthalic acids
IPC: C07C51/265
Filed: 1969-05-07
Abstract: 1,247,981. Isophthalic and terephthalic acid. ATLANTIC RICHFIELD CO. 7 May, 1969 [9 May, 1968], No. 23349/69. Heading C2C. A two-stage method for the production of a high purity terephthalic and isophthalic acid from C 8  aromatic hydrocarbon feedstock containing a major amount of the desired isomer of xylene corresponding to the desired acid, comprises oxidizing a feed comprising an alkanoic acid containing 5 to 15 weight per cent of the desired xylene isomer to the corresponding toluic acid in a first oxidation stage with a gas containing free molecular oxygen, said feed containing above 0.05 moles cobalt per kilogram of feed as catalyst, 0À1 to 4 weight per cent water and less than 5 weight per cent orthophthalic acid, the first oxidation stage being maintained at a temperature of 210 to 300 F., a pressure of 50 to 1000 p.s.i.a. and an oxygen partial pressure of 5 to 500 p.s.i.a., the feed being oxidized in the first oxidation stage for a period sufficient to provide a first stage oxidation product wherein at least 50% of the xylene in the feed has been oxidized to the corresponding toluic acid, the cobalt catalyst within the first stage comprising 10 to 50% trivalent cobalt and the remainder bivalent cobalt, the said first-stage oxidation product containing less than 5 weight per cent orthophthalic acid and less than 5 weight per cent water, and then oxidizing the said first stage oxidation product with a gas-containing free molecular oxygen in a second stage in the presence of above 0.05 mole per kilogram first stage product of cobalt at least 30% of which is in trivalent form, and 0.05 to 0.5 moles of an alkanal corresponding to the alkanoic acid per mole of toluic acid in the first stage product at a temperature of 190 to 275 F., a pressure of 50 to 1000 p.s.i.a. and an oxygen partial pressure of 10 to 500 p.s.i.a. for a period cf time sufficient to obtain a secondstage oxidation product representing at least 70% conversion of the xylene in the feed to the corresponding benzene dicarboxylic acid.
Patent GB-767085-A (GB)
Title: Improvements in heat exchangers
IPC: F28D15/02
Filed: 1951-10-08
Abstract: 767,085. Heat exchangers; Perkins tubes. HUET, A. Oct. 8, 1951 [Oct. 6, 1950; Oct. 31, 1950], No. 23366/51. Classes 64(2) and 64(3) Perkins tubes a which extend through a wall b separating two ducts and transfer heat between fluids flowing through the ducts have longitudinal tangential fins c. These fins extend in opposite directions from opposite ends of a diameter. The tubes are arranged in rows and staggered from row to row, and the fins form sinuous passages for the fluids. Each tube may have a globular central part d, Fig. 3, fitting in a curved aperture in the wall b so that it can be adjusted or shaken for cleaning.
Patent GB-1181922-A (GB)
Title: Track Toy
Inventor: ERNST MAX
IPC: A63H18/02
Filed: 1968-05-17
Abstract: 1,181,922. Track toy. M. ERNST. 17 May, 1968 [24 May, 1967], No. 23485/68. Addition to 1,181,921. Heading A6S. A modified track, for the toy described in the main invention, has track sections comprising lower parts, that define guide ducts 1, 2, and upper cover parts 12, that define guide slots (above the guide ducts), the upper parts being connected to the lower parts by mortise and tenon joints 9, (10). The lower parts are of lattice structure comprising guide slots 1, 2 and edge member 3, 4 cross-linked by members 6, 7. The mortises 9, which are provided on reinforced parts 8, are cylindrical bores with constrictions at their bases and are a snap fit with the tenons (10) of the upper parts 12 (14).
Patent GB-845489-A (GB)
Title: Stepping gear for cam-operated electrical switches
IPC: H01H19/11
Filed: 1958-07-22
Abstract: 845,489. Cam-operated switches. NAIMER, H. L. July 22, 1958 [Sept. 16, 1957], No. 23572/58. Class 38 (5). An indexing mechanism for a switch has three diametrical guides 8 for slides 4 which co-operate with a toothed wheel 2, two of the guides being at right angles to each other, and the third being at 30 degrees to one and at 60 degrees to the other. The number of slides actually used and the number of teeth on the wheel 2 depend on the required number of switch positions.
Patent GB-337448-A (GB)
IPC: C10K1/04
Filed: 1929-07-31
Abstract: 337,448. Siemens - Schuckertwerke Akt.-Ges. Jan. 9, 1929, [Convention date]. Gases, treating with liquids and steam.- Furnace gases before passage through a dustfilter 3, particularly an electrostatic separator, are brought to uniform temperature and humidity by passage through a heater 5, a stream of cold water in cooler 6 and a steam injector 7, all controlled automatically by a contact thermometer 12 and a contact hygrometer 15 in the gas main 1.
Patent GB-1406418-A (GB)
Title: Apparatus for controlling the forward and return movements of a drilling spindle
IPC: B23Q16/00
Filed: 1974-05-28
Abstract: 1406418 Drilling apparatus; slide feeds FABRIQUE DE MACHINES ANDRE BECHLER SA 28 May 1974 [14 June 1973] 23599/74 Headings B3C and B3B An apparatus for controlling the forward and return movements of a drilling spindle 3 comprises a primary actuation element, cam drum 6, for controlling the drilling spindle, plunger means operatively connecting the primary actuation element with the drilling spindle, reversing valve means 27 for acting through the agency of the plunger assembly upon the drilling spindle for initiating rapid forward and return movements, and means for triggering forward movement of the drilling spindle during a portion of the time that the drilling spindle carries out its rapid return movement, said triggering means including adjustable means, element 30, for selectively determining the position during the rapid return movement of the drilling spindle that its rapid forward movement is initiated. In operation a stop or other means initiates electro-magnetic actuation of the reversing valve so that air is passed to the right hand side of piston 13. This causes rapid return movement of the spindle and shut-off slide 16. Element 30 allows venting of the reversing valve by one of ports 31, 32 or 33. When the appropriate port is closed by slide 16 the reversing valve is caused to supply air to the L.H.S. of the piston 13 for rapid forward movement of the spindle.
Patent GB-973472-A (GB)
Title: Improvements in or relating to dust collection devices for suction cleaners
Inventor: CARPENTER KENNETH
IPC: A47L9/14
Filed: 1960-07-06
Abstract: 973,472. Suction cleaner filter bags. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 23, 1960 [July 6, 1960], No. 23648/60. Heading A4F. [Also in Division B1] The motor driven suction fan of a handlepropelled suction cleaner exhausts dustladen air through an upwardly directed flexible impermiable duct 1 of elongated cross-section and through a downturned nozzle 5 having its upper end 6 secured to a flanged aperture 4 in one side of the duct 1 near the upper sealed end 2 thereof and having detachably connected at its lower end 7 a paper filter bag 11; the assembly being surrounded by a conventional appearance bag suspended from the cleaner handle. The tube 1 and nozzle 5 are constructed of thermoplastic material.
Patent GB-686619-A (GB)
Title: Improvements in and relating to solid fuel fired furnaces
IPC: F23H9/00
Filed: 1950-09-27
Abstract: 686,619. Boiler furnaces. FOSTER WHEELER, Ltd. Sept. 27, 1950 [Sept. 27, 1949], No. 23719/50. Class 51 (i). In a water tube boiler furnace fired with solid fuel by a spreader stoker 16 the grate 10 is divided into four sections 10a-10d each disposed over its own ash pit 12a-12d each ash pit being divided into two superposed sections 26a-26d and 28a- 28d by doors 24a- 24d formed with plates 50 tightened round shafts 44 by bolts 52 and positively secured thereto by screws 54, said shafts being actuated from the front wall of the ash pit by cranks 48. The upper parts 26a-26d of the ash pits are supplied with combustion air from a main 38 having branches 38a-38d with outlets controlled by dampers 40a-40d actuated by rods 41a-41d from the front of the furnace. The grate sections are supported on partitions 20 and the side walls 22 defining the ash pits, and the grate members 30 of each section are connected by a rod 32 to the piston rod 36 of a dumping mechanism individual to that section. Ash can thus be dumped from each grate section independently of the others, and by closing the doors 24a-24d can be removed from the lower ash pit sections 28a-28d without disturbing the operation of the furnace.
Patent GB-160121-A (GB)
Title: Improvements in or relating to gear wheels
IPC: F16H55/14
Filed: 1919-12-05
Abstract: 160,121. Laminated Gears, Ltd., and Bellhouse, E. L. W. Dec. 5, 1919. Toothed wheels are formed of laminµ a secured between flanges e, d by clamping - screws f, which form keys connecting the laminµ a to a central hub b, engaging recesses in both. The flanges e. d are both separate from the hub b. Specifications 20696/13 and 18720/14 are referred to.
Patent GB-501632-A (GB)
Title: Improvements in or relating to fuel-injection systems or devices for internal-combsution engines
IPC: F02M55/02
Filed: 1937-08-25
Abstract: 501,632. Valve gear; fuel injectors. AMERY, G. Aug. 25, 1937. No. 23876/38. Divided out of 501,588. [Classes 7 (iii) and 7 (vi)] In a fuel injector having valve which is .opened by fuel pressure and closed by applying fluid pressure to a. piston whilst the injection pressure is still maintained, an auxiliary valve is provided which cuts off the fuel supply to the injector when the valve is closed. The nozzle-valve 120, which is urged towards closing position by a spring 124, is closed when fuel, under pressure, is admitted through a pipe 94 to a chamber 121 in which it acts upon a piston 122 carrying a push-rod 143 which rests on the valve 120. The pressure also acts upon a piston 132 to seat an auxiliary valve 130 and cut off the supply of injection fuel through passages 102, 134 to the space around the valve 120. To relieve the pressure in this space when the valve 120 is seated, grooves 136, 137 in the valve place the passage 134 into communication through passages 159, 160, 141, 142 with a chamber 125 having a drain pipe 103 leading to the fuel tank. Fuel leakage past the piston .122 or the valve 120 is'also led away through the drain pipe 103. A distributer controls the admission of fuel to the pipes 94 of the injectors and a low pressure is maintained in the pipes 94 during the period that they are disconnected from the source of fuel pressure. Specifications 468,360 ; 468,372, [Group XXVIII], 501,588; and 501,633, [Group XXVIII], are referred to.
Patent GB-1254775-A (GB)
Title: Internal combustion engine accesory unit assemblies
Inventor: GREGORY DONALD FREDERICK
IPC: F02B67/04
Filed: 1969-05-10
Abstract: 1,254,775. Lubricating; distributers. GENERAL MOTORS Ltd. April 23, 1970 [May 10, 1969 ], No.23899/69. Heading F1B. An I. C. engine accessory units assembly comprises a housing 1, Fig. 1 journalling a drive-shaft 5 which carries a toothed pulley and a plurality of engine accessory units including a fuel pump 23 an ignition distributer 8 and an oil pump 14, the ignition distributer, the oil pump and a fuel pump actuator cam 22 being arranged coaxially of the drive-shaft. The housing has internal passages leading from entry and exit ports at the mounting face to the oil pump and further passages to and from a mounting face 30 for an oil filter. The oil pump may be an internally meshing lobed gear type.
Patent GB-1303483-A (GB)
IPC: C08L27/12
Filed: 1970-05-18
Abstract: 1303483 Oxybenzoyl polyester-fluorinated polymer composition CARBORUNDUM CO 18 May 1970 [28 May 1969] 23912/70 Headings C3P and C3R A composition useful, e.g., for making bearings which can operate at high temperatures without lubrication comprises a mixture in a ratio of 1 : 100 to 100 : 1 of an oxybenzoyl polyester and a polyfluorinated addition polymer stable to at least 400‹ F. such as polytetrafluoroethylene having M.W. above 6000. Preferred polyesters have formula where p is 30 to 200, e.g. those described and claimed in Specification 1,173,121, and copolyesters containing oxybenzoyl units are also suitable, particularly those which form the subject of Specification 1,303,484. The composition may be formed by mixing and compacting granular polyester and granular addition polymer. Fillers such as bronze, graphite, molybdenum disulphide or glass fibres may also be included in amounts up to 70% of the total weight. Bearings made from P.T.F.E.-based compositions are described.
Patent GB-1284403-A (GB)
Title: Improvements in and relating to filtering apparatus
Inventor: SOWTER GEOFFREY THOMAS
IPC: B01D29/00
Filed: 1968-08-08
Abstract: 1284403 Filter G T SOWTER 5 Aug 1969 [8 Aug 1968 10 May 1969] 37895/68 and 23945/69 Heading B1D A liquid filter comprises a cyclindrical perforated casing C, a wire gauze tube E, carbon granules F, upper and lower removable filter elements G and G' comprising lengths of pleated paper attached to and held in generally cylindrical contour by end rings (not shown), the length of paper having an outer covering M and M1 of perforated oil board, a felt plug H, a base A and a removable end cap U.
Patent GB-168909-A (GB)
IPC: B43L7/04
Filed: 1921-09-08
Abstract: 168,909. Zovich, G. Sept. 9, 1920, [Convention date]. Rulers.-A parallel ruler comprises a rectangular member l provided with bearings c for a spindle a to which are secured two equal knurled rollers r passing through apertures b in the member l. A handle m is pivoted to the ruler so as to be rotatable around a vertical axis. The member l is maintained in its raised position for movement over the paper &c. by springs q secured to it and slidably mounted on the spindle a. By pressing down the handle the member l is brought into the position l<1> Fig. 2, for ruling purposes, the bearings c having slots f, Fig. 8, to facilitate movement of the spindle therein. The bearings also have recessed portions y into which the spindle can be passed to lift the rollers clear of the paper &c.
Patent GB-1294146-A (GB)
Title: Device for cross feeding individual curved rolled rods or bars
Inventor: BOSE WILHELM
IPC: B21B39/00
Filed: 1970-05-18
Abstract: 1294146 Rolling MOELLER & NEUMANN GmbH 18 May 1970 [3 June 1969] 23964/70 Heading B3M A cross-feed device for individual curved rolled rods or bars comprises carriages 8 transversely displaceable on tracks 10 by a common drive 6, carriers 24 mounted on the carriages 8 and displaceable in the cross-feed direction by a drive 26, and means 12-22 for vertically displacing the tracks 10 so that the carriers 24 can travel under, and engage from below, a rolled rod or bar 3. The carriages 8, with their carriers 24, are displaced towards the first profiled bar 3 by actuating the drive-shaft 6 for a cable drive 4. Depending on the curvature of the bar at least one carrier 24 reaches the bar 3 first, and a feeler rod 38 of the respective carrier is pressed back, thus stopping the drive-shaft 6 and starting the motors 26 of all the carriers 24 whose feeler rods have not yet come into abutting engagement with the bar. These carriers then advance relative to their carriages 8 and are stopped when their feeler rods 38 engage the bar. The last signal for stopping a carrier 24 switches on the drive 12-22 for pivoting the tracks 10 in an upward direction about the shaft 6 after which the carriages 8 together with the carriers 24 holding the bar 3 are displaced towards a roller table 2. At the end of the shift stroke the drive 12-22 lowers the tracks 10 so that the cross-fed bar is deposited in the position 3<SP>1</SP> on the roller table 2. The next operating cycle can be initiated before the profiler has left the position 3<SP>1</SP> by lowering the tracks 10 so that the carriers 24 can travel below the profile.
Patent GB-297568-A (GB)
Title: Improvements in or relating to gas generating plants
IPC: C10J3/00
Filed: 1927-09-12
Abstract: 297,568. Tully, A. V. Sept. 12, 1927. Producers.-In a water-gas producer plant having a preliminary distillation retort discharging into the fuel-bed below, the retort is provided with one or more movable rods or stirrers for agitating the fuel therein. This stirring means may be operated either by connection with the air or steam valves or with the fuel-charging devices, or manually, and liquid or pulverized fuel may be supplied through it to the hot zone of the producer. Alternatively, steam may be supplied through the hollow rod during the down-run, and. external projections on the rod may be used to facilitate the stirring of the fuel. A hollow rod 5 extends into the retort 1 of the producer and is mounted in an extension 3 by connection to one end of a lever 6, the other end of which is actuated by a rod 8 from an air valve 10, so that the poking tube 5 will be caused periodically to move up and down. A liquid hydrocarbon supply pipe 11 and a steam or air pipe 14 are connected to the upper end of the rod by a cap 5a which facilitates cleaning of the rod, the end of which has perforations 12, and is provided with projections 13. In a modification, means are shown for rotating the rod.
Patent GB-990735-A (GB)
Title: Direct current generators
Inventor: ZDROJEWSKI RYSZARD
IPC: H02K19/26
Filed: 1961-07-03
Abstract: 990,735. Dynamoelectric machines. INSTYTUT ELEKTROTECHNIKI. July 3, 1961, No. 24020/61. Heading H2A. A direct current generator has a rotary or stationary armature with each phase of its winding 1 connected to a semi-conductor rectifier 2 mounted in the stator or on the rotor for rectifying alternating current generated in the winding, and has two field windings or magnets arranged to produce fields at rightangles, means being provided for varying the current in both windings or adjusting the magnets. The armature windings may have a large leakage inductance as a result of inserting the windings in closed or semi-closed slots so that the number of phases contributing to the output is at least one-third of the total. The output is regulated to provide a constant load by connecting the main field winding A, B in series with an armature-reaction compensating winding CD and controlling the current therethrough, the current in the latter winding serving to control the number of phases contributing to the output.