baber/WOPTO huggingface dataset:
Patent GB-1068955-A (GB)
Title: Improvements in luminaire
IPC: F21V23/00
Filed: 1964-08-17
Abstract: 1,068,955. Street lighting fittings. GENERAL ELECTRIC CO. Aug. 17, 1964 [Sept. 3, 1963], No. 33579/64. Heading F4R. A bracket which is mounted at one end on a roadside pole 3 and carries a luminaire 4 at its other end comprises an inverted U - shaped channel member 19 the open bottom of which is closed by a hinged cover member 21 carrying auxiliary equipment, the cover member and the equipment thereon being removable and replaceable as a unit. The cover member has two hinge pins which are releasably engaged with hinge hooks 44 at the pole-mounted end of the channel member, and the opposite end of the cover is secured by a fastener 63 so that the cover acts as a compression strut to strengthen the bracket. The auxiliary equipment may include a photo-electric control 70 located beneath a transparent dome 79 on the channel member. Means are described for securing the bracket to the side or top of the pole.
Patent GB-1413549-A (GB)
Title: Bag
IPC: B65D33/25
Filed: 1973-07-13
Abstract: 1413549 Plastics bags ROBERT BOSCH GmbH 13 July 1973 [15 July 1972] 33593/73 Heading B8K A bag has two walls 1, 2 of flexible and weldable or heat-sealable material connected together by side seams 3, 4 and an integral or separate folded bottom 5, there being inclined seams 8, 9 and bottom seams 10, 11 which give to the base an ellipse-like shape so that the bag can be stood upright. A releasable rib and groove closure is provided at the upper end of the walls. As an alternative to the seams 10, 11 extending all round the bag, strips of paper or pasteboard 12, 13 are stuck to the walls, or secured by cut-outs 14, 15 engaging lugs 17, 18 to form a hoop around the bag bottom. An upper seal 22 may be torn off at perforations 23 when the bag is first opened.
Patent GB-962368-A (GB)
Title: Photographic objective
IPC: G02B13/00
Filed: 1962-09-03
Abstract: 962,368. Photographic objectives. CARL ZEISS-STIFTUNG, [trading as C. ZEISS [Firm of]]. Sept. 3, 1962 [Oct. 3, 1961], No. 33656/62. Addition to 931,063. Heading G2J. The objective of the parent Specification is modified by decreasing the length of the front air space to at least 0. 1f and increasing the thickness of the component (L III  as shown) immediately following this air space (d 4  as shown) so that the sum of the length of the air space and the thickness of the component lies between 0. 3f and 0. 9f. Optional data are given for an example of the objective shown in which d 4  and d 5  is equal to 0. 39f and d 4  is about 0.15f.
Patent GB-875568-A (GB)
Title: Improvements in or relating to the production of metal ingots and castings
Inventor: HALL CLIFFORD
IPC: B22D27/04
Filed: 1958-10-21
Abstract: 875,568. Casting-processes. FOUNDRY SERVICES INTERNATIONAL Ltd. Sept. 21, 1959 [Oct. 21, 1958], No. 33673/58. Class 83 (1). Castings are formed with unidirectional columnar crystals by casting in a mould with walls consisting of, or lined with, an exothermic material positively cooling the cast metal at the base of the mould and applying powdered exothermic material to the upper surface of the melt. The thickness of the exothermic material may vary from a minimum near the cooling surface to a maximum at the position remote therefrom. Specifications 627,678, 769,719, 774,490, 774,491 and 835,483 are referred to.
Patent GB-608773-A (GB)
Title: Apparatus for detecting suspended matter in fluids
IPC: G01N21/29
Filed: 1945-12-12
Abstract: 608,773. Smoke detectors. SPECIALTIES DEVELOPMENT CORPORATION. Dec. 12, 1945, No. 33704. Convention date, Dec. 23, 1944. [Class 47 (i)] A device for detecting smoke or other suspended matter in fluid in localised spaces consists of a series of pipes 20, 22 leading from the spaces to a detection cabinet 10 which includes a main visual chamber 14 and individual chambers 16, 18. Air is drawn along the pipes 20, 22 by means of a blower 28 and is led into the respective chambers 16, 18 from whence it passes through the openings 76 into the main visual chamber 14. Light from a lamp 50 passes the lenses 52 up tubes 42 and through slits 60 at opposite sides of the chamber 14 to illuminate any particles of smoke therein by opposed light beams. Semicircular interrupters 62 are rotated so that the light flashes in the chamber 14 and, if any smoke is present, attracts the attention of an observer. Windows 30, 78, 80 are placed in the chambers 14, 16 and 18 at an angle to the line of vision and set back from the front 40 of the cabinet to prevent interference by reflections at the window surface of exterior objects. The individual chambers 16, 18 are lit by separate lamps which may be switched on together at will. The main visual chamber detects the presence, and the individual chambers the source, of the smoke. Means are provided for indicating if an air flow through the device is maintained, by pivotally mounting above the openings 76 in the individual chambers, L-shaped members 84 which are so balanced that the air flow prevents them from obstructing the light in the chamber; but when the air flow ceases, they swing into the light and become visible to the observer. The interrupter 62 may be in the form of a disc with sectors of contrasting colours such as red and green, one sector being left clear. Specifications 568,857 and 608,772 are referred to.
Patent GB-411102-A (GB)
Title: Improvements in and relating to variable speed and reversing gearing
IPC: F16H3/00
Filed: 1932-11-29
Abstract: 411,102. Reverse gearing. FOX, P. A., 2, Beverley Road, Wavertree, Liverpool. Nov. 29, 1932, No. 33717. [Class 80 (ii).] In a reverse gear for motor-car gear boxes, the reverse idler shaft is cranked or notched tc provide clearance for the large gear wheels on the mainshaft and /or the countershaft. The reverse idler d rotates or the shaft e which is notched as shown tc provide clearance for the gear wheel f on the countershaft.
Patent GB-877809-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H9/00
Filed: 1957-10-29
Abstract: 877,809. Arc-preventing in switches. I-T-E CIRCUIT BREAKER CO. Oct. 29, 1957 [Nov. 19, 1956], No. 33759/57. Class 38 (5). In a multi-phase circuit-breaker having a moulded case 20, 22 with channels in which the contacts are located, barriers 64, 66 are provided for restricting the circulation of ionized gases between the contacts of different phases through openings in the walls 44, 52 of the channels, so as to prevent flashover between the phases. In the arrangement shown, the outer channels of a three-phase circuit-breaker have barriers to restrict the flow of ionized gases through apertures 62 in the channel walls, the apertures permitting the use of a common operating shaft 60. Slots 74 at the top of the barriers and holes 72 in the barriers permit some leakage of gases so as to avoid the production of excessive pressures. Specifications 783,366 and 869,424 are referred to.
Patent GB-429359-A (GB)
Title: Improvements relating to metal window or door frames
IPC: E06B1/02
Filed: 1933-12-01
Abstract: 429,359. Window frames; door jambs. HOPE & SONS, Ltd., H., and BIRCH, F., Halford Works, Smethwick, Staffordshire. Dec. 1, 1933, No. 33762. [Class 20 (iii)] The fixed metal frame of a door or window fitted to a cavity wall comprises members a, b, each adapted to form a hollow boxlike cover for the adjacent edge of the cavity. In the construction shown, the side members a are formed with flanges c, d, bearing against the walls of the cavity w, the flange d being shaped to overlap a portion of the plastic covering e of the wall. The upper member b is provided with laterally extending flanges f, g abutting against the surfaces of the wall opening. The lower member b may be similarly constructed or, as shown, it may be combined with a tile sill h to cover the cavity and may be shaped to receive one edge of a window board j. Flexible or plastic jointing material may be interposed between the flanges of the members a, band the wall to serve as a seal and to assist in holding the fixed frame in position.
Patent GB-365509-A (GB)
Title: Improvements in or relating to elastic fluid turbines driving electric generators
IPC: F01D15/10
Filed: 1930-10-24
Abstract: 365,509. Turbines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, LAW, A. H., Stanford House, Stanford, near Rugby, and CHITTENDEN, J. P., South Lodge, Westfield, Rugby. Oct. 24, 1930, No. 33765/31. Divided on 365,213. [Class 110 (iii).] In a turbo-generating set which comprises two generators 2, 5, independently driven on separate shafts by a H.P. turbine 1, and I.P. and L.P. turbines 3, 4, an atmospheric relief valve 6 is located on the connection between the H.P. stage and the I.P. stage. A shut-off valve 10 is also supplied between the units 1, 3, but is placed after the valve 6. Interlocking gear, illustrated in Fig. 3, is automatically operated by oil pressure such that when the valve 6 is open, valve 10 is closed. Oil under pressure enters a port 16 and a valve 15 allows the oil to flow either above or below a piston 13 to close or open the valve 6 in dependence. of the position of a piston 18 which is pivoted to a link 17 by means of a rod 18a. A pipe 20 communicates with the exhaust of the H.P. turbine 1, and an increase in the normal pressure in the exhaust causes a downward displacement of the piston 18, against the pressure of an adjustable spring 21. The lower side of piston 18 is under atmospheric pressure. In an alternative arrangement a twoway valve may be used in place of the valve 10, to connect the turbine 1 either to the I.P. turbine 3 or to atmosphere. Overspeed tripping devices 8, 9 are provided on turbines 1, 3, to close the inert-stage valve 10 and so open the valve 6. The trip 8 also closes the main inlet valves 7. In starting up the plant the valve 6 is closed until the pressure in the H.P. exhaust rises until it exceeds normal, forces down piston 18 and causes valve 6 to open. The pressure then falls allowing piston 18 to rise and the valve 6 to reclose. In a modification the mechanical interlock between valves 6, 10 is omitted, and the valve 10 is operated either directly by hand or electromagnetically.
Patent GB-737545-A (GB)
Title: A system for the automatic control of a heating installation in accordance with weather conditions
IPC: G05D23/24
Filed: 1953-12-04
Abstract: 737,545. Electric control systems. LANDIS & GYR AKT.-GES. Dec. 4, 1953 [Dec. 6, 1952], No. 33807/53. Class 40 (1). In a system foi automatically controlling a heating installation in accordance with weather conditions, the heat losses in an electrically heated " heat loss-measuring instrument " 10, Fig. 1, exposed to the weather conditions, are evaluated in a similar instrument 20 subjected to a substantially constant external temperature, e.g. by mounting it in the boiler-house of the building to be heated. Both instruments are heated by parallel connected circuits, the evaluator serving to regulate the furnace. A resistance thermometer 12 in the " heat loss " instrument 10 is connected in an automatically balanced D.C. bridge circuit 12-15, the output of which is amplified in a magnetic amplifier 30 which controls the supply of heat to the coil 11  in instrument 10 to maintain the internal temperature thereof substantially constant. This is achieved as shown, through a relay 33; a contact 34 of which varies the duration of current flow in the heater coil. Alternatively, the amplifier output may supply the heating power directly, Fig. 3 (not shown), or, through the relay 33, may control a reversible motor to adjust a variable ratio transformer, Fig. 2 (not shown), feeding the heater coil 11. The evaluating instrument heater coil 21 is fed in parallel with the heater 11. The internal temperature of the evaluating instrument which thus varies with the heat losses of instrument 10, is compared with the temperature of the building heating fluid flowing in a pipe P by temperature sensitive resistors 22-23 in a further bridge 22-25, the output of which is amplified in a magnetic amplifier 40, the output relay 43 of which regulates the furnace through an instrument 47, in known manner. Bridge resistance 13 is variable and set according to the desired building temperature. The bridge regulating resistance 24 is used to compensate for ambient temperature changes of the evaluator 20. The bridge resistance 15 may also be made dependent on the temperature of one or the average of that of several rooms in the building to compensate for temporary temperature changes. The same effect may be produced, alternatively by using additional temperature sensitive resistors in the arms 23, 24 of the second bridge. Nickel or semiconductors are used as temperature sensitive elements.
Patent GB-805009-A (GB)
Title: Improvements in methods and apparatus for burning solid fuel
IPC: F23K3/00
Filed: 1955-11-25
Abstract: 805,009. Solid fuel combustion apparatus. VORKAUF, H. Nov. 25, 1955 [Dec. 6, 1954], No. 33833/55. Class 51 (1). In a boiler furnace, fuel from a hopper 3, Fig. 1, is fed by a ram 4 into a water-tube lined degasefication chamber 1 where it is coked and ignited in the presence of air passing from chambers 12 to 13. Gases emanating from the chamber 1 are forced by air discharge nozzles 14 through the chamber 13 into a chamber 17 in which the air and gases mix prior to passing horizontally through the water-tubed combustion shaft 2 to effect thereby further combustion of the fuel which has, due to continuous application of the ram, passed from the chamber 1 to the shaft 2 through a passage 7 which is also lined with water-tubes. Slag collects on a grate 5 from whence it is ejected whilst the gases from the shaft pass into a chamber 21 where secondary air is added. In lieu of using nozzles 14 suction in chamber 13 may be produced by withdrawing the gases from the chamber 1 through a box 15 from whence they are introduced into the chamber 17 by a fan which also supplies the combustion air. Grate fallings from the chamber 1 pass to the grate 5 through chamber 17, a grate-like flap 19 and a chamber 20. In a modification, the ram 4, Fig. 2, pushes the fuel upward and the degasefication gases are withdrawn from the chamber 13 into the box 15 by a fan which forces them, together with combustion air, into the chamber 17. The ram 4 may be in parts and so driven that the parts do not all press forward together. In order to optically acertain fuel level in the shaft 2, a chamber may be provided between the chamber 1 and the shaft. This chamber 24, Fig. 4, may house automatic fuel regulating means comprising a plate 25 welded to a resilient water-cooled tube 26. Fuel pressure on the plate moves the tube to eventually actuate ram interrupting means. The fuel may be delivered to the chamber 1 by screw conveyers 29, 30, 31, Fig. 5, which selectively deliver from one or other part of the width of the hopper 32. The conveyers may be driven separately or so that they are switched in at intervals until all are operating. The chamber 1 may be longitudinally sub-divided by partitions.
Patent GB-906555-A (GB)
Title: Manufacture of polyalkylene terephthalate
Inventor: URE GEORGE REID
IPC: C08G63/83
Filed: 1959-10-06
Abstract: In the manufacture of polyalkylene terephthalates by reacting an alkyl ester of terephthalic acid with a glycol of formula HO(CH2)nOH where n=2-10, manganous glycoloxide is used as a catalyst.  As an additional catalyst, a tri- or pentavalent compound of antimony (e.g. antimony trioxide) may be used.  An insoluble pigment (e.g. carbon black) may be present in the polyester-forming reaction mixture. Examples describe the manufacture of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol.ALSO:Manganous ethylene glycoloxide is made by refluxing manganous acetate tetrahydrate with ethylene glycol.
Patent GB-348042-A (GB)
Title: Arrangement for the distribution and regulation of the energy of stations connected to a ring line
IPC: H02J3/12
Filed: 1929-11-06
Abstract: 348,042. Supply systems. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 6, 1929, No. 33872. Convention date, Nov. 7, 1928. [Class 38 (iv).] Systems depending on static transformers; distribution network arrangements. - In an A.C. system in which a consumer receives energy from a ring main the effective and wattless currents are shared as desired between the two branches of the ring, with or without regulation of the voltage on the consumers bus-bars, by means of transformers arranged to inject into the ring main a voltage which generates a current in the ring which is displaced in phase as desired relative to the current in the ring main at the consuming station. The operation relies upon preponderating inductance in the ring and its transformers, but mixed star-delta and other known artificial connections may, if necessary, be employed to make the phase angle of the auxiliary voltage with reference to ring voltage equal to the angle of impedance of the ring. The voltage is preferably adjustable in magnitude as well as in phase. A single transformer may be employed but preferably two are used and installed at the consuming station, one in each ring feeder, so that, by regulating the voltage equally in opposite directions on each, the load distribution may be effected without changing the consumers bus-bar volts. Insulating transformers may be used to obviate high voltages on the regulating apparatus. The Figure shows an arrangement in which a star-star connected transformer supplies regulating windings to furnish a voltage in phase with the ring current to control the effective energy distribution between the line branches and if required the bus-bar volts and in which a star-delta transformer furnishes a voltage in quadrature with the ring current to control the distribution of wattless current between the line branches. A regulating transformer may be provided for each insulating transformer the tapchanging switches being operated alternately.
Patent GB-1332610-A (GB)
Title: Wheel slip limiters for motor vehicles
IPC: F02D29/02
Filed: 1972-07-20
Abstract: 1332610 Regulating I.C. engines GENERAL MOTORS CORP 20 July 1972 [27 Aug 1971] 34022/72 Heading F1B [Also in Divisions G3 G1] A wheel slip limiter for a motor vehicle, for limiting excessive slip of a driven wheel of the vehicle in the event of application of excessive torque thereto by the vehicle's engine, and for limiting vehicle speed, comprising: a first tachogenerator 12 adapted to be responsive to the speed of the driven wheel and to produce an electrical signal variable as a function of driven wheel speed; a second tachogenerator 10 adapted to be responsive to the speed of a non- driven wheel of the vehicle and to produce an electrical signal variable as a function of non- driven wheel speed; a comparator 18 including resistor-capacitor network 50, 48 of which the time constant is such that for speeds of the non- driven wheel below a predetermined maximum the capacitor is substantially fully charged during each cycle of the output from squaring amplifier 14 but for speeds above the maximum the current flow through diodes 52 is less than a value proportional to non-driven wheel speed; the comparator produces a D.C. signal corresponding to the amount by which the excess of driven wheel speed over non-driven wheel speed exceeds 4 m.p.h. which signal actuates relay coil 24 of a servomotor Fig. 2 (not shown) to move the throttle valve towards the closed position to reduce engine torque and thereby prevent excessive wheel slip or sustained excessive vehicle speed.
Patent GB-1278869-A (GB)
Title: High-strength low-alloy steels having improved formability
IPC: C22C38/00
Filed: 1970-07-14
Abstract: 1278869 Low alloy steel JONES & LAUGHLIN STEEL CORP 14 July 1970 [16 July 1969] 34098/70 Heading C7A Killed, high strength, low alloy steel, comprises: - the Zr content (when present) being at least 0À02% + 6.5 (%N), and sufficient Al to give a killed steel, the balance, apart from impurities, being Fe; and has been hot rolled with a finishing temperature of 1550-1650F. and then cooled at a rate of 20- 135F/sec. to 1025-1175F.
Patent GB-1278158-A (GB)
Title: Process for the copolymerization of pinene
IPC: C08F236/04
Filed: 1970-07-14
Abstract: 1278158 Coated paper PENNSYLVANIA INDUSTRIAL CHEMICAL CORP 14 July 1970 [31 Oct 1969] 34116/70 Heading B2E [Also in Divisions C3 and C5] In Example V, machine-glazed Kraft paper is coated by conventional methods with a hot melt composition comprising 15 parts alphapinene/isoprene copolymer, 15 parts ethylene/ vinyl acetate copolymer, 60 parts paraffin wax of m.p. 115F, 10 parts microcrystalline wax of m.p. 180F, and 0.1 part of butylated hydroxytoluene (anti-oxidant).
Patent GB-869274-A (GB)
Title: Improvements in or relating to fuel systems for internal combustion engines
Inventor: GRIFFITH ALAN ARNOLD
IPC: F02C3/24
Filed: 1956-11-08
Abstract: 869,274. Gas turbine plant. ROLLS-ROYCE Ltd. Oct. 24, 1957 [Nov. 8, 1956], No. 34216/58. Class 110 (3). A hydrogen fuel system for a gas turbine engine comprises a storage vessel for the hydrogen in liquefied form from which the fuel is drawn off in gaseous form, means for compressing and thereby heating the gaseous fuel prior to its delivery to the engine, means for controlling the flow of compressed and heated gaseous hydrogen to the engine and means for returning a proportion of the compressed and heated gaseous hydrogen into the liquid hydrogen in the storage vessel to cause evaporation of the liquid hydrogen. The gas turbine fuel system shown comprises a heat-insulated storage vessel 15 containing liquid hydrogen which has the suction pipe 16 of a multi-stage centrifugal compressor 17 connected to its upper surface. The compressor 17 discharges through a pipe 12 containing a control valve 18 to the combustion equipment 11 of a gas turbine engine. An auxiliary engine comprises a compressor 19 which delivers compressed air to combustion equipment 20 feeding a turbine 21 driving the compressor 19 and a low-pressure output turbine 23, which is used to drive the compressor 17. The exhaust from the turbine 23 passes through a heat-exchanger 29 to atmosphere. Part of the compressed gaseous hydrogen is taken from the pipe 12 and led. through the control valve 26 to the heat-exchanger 29 where it is heated and then passed through a shut-off cock 39 and conduit 38 back to the storage vessel 15. The conduit 37 may be connected to the first stage of the compressor 17, as shown by the dotted line 27. The supply of gaseous hydrogen to the combustion equipment 20 of the auxiliary engine is controlled by a shut-off cock 32 and a control-valve 33. The valve 33 and the valve 26 are actuated by an evacuated, capsule 34 loaded internally by a spring 35 in response to changes in the pressure within the storage vessel 15. When this pressure reaches a predetermined value the valves 33 and 26 are closed down, so reducing the supply of fuel to the combustion equipment 20 and the supply of heated hydrogen to the storage vessel. When this pressure decreases, the valves 33 and 26 are opened. A relief valve may be provided on the storage vessel. The compressed gaseous hydrogen flowing in the pipe 12 may be employed for cooling, for instance parts of the aircraft in which the engine is fitted. The auxiliary engine may be kept running to burn any hydrogen evaporating in the storage vessel. The pressure in the vessel 15 is preferably maintained at less than atmospheric pressure at ground level so that any leakage when the aircraft is stationary will be towards the interior of the vessel. Any air leaking into the vessel will freeze and seal any leakage passage which may exist.