baber/WOPTO huggingface dataset:
Patent GB-1394455-A (GB)
Title: Ground fault detectors
IPC: H02H3/027
Filed: 1972-07-25
Abstract: 1394455 Protective arrangements WESTINGHOUSE ELECTRIC CORP 25 July 1972 [30 Aug 1971 (2)] 34665(72 Heading H2K A protective arrangement comprises earth fault current sensing means, e.g. a core balance transformer 30, an input circuit 35 to provide an output signal when the earth fault current exceeds a predetermined level and variable time delay means 40 connected to the input circuit 35 and providing an output after a predetermined delay to an output circuit 44 which provides a tripping signal to cause the opening of a circuit interrupter 150 and includes a "memory circuit" to maintain the tripping signal until reset. When the earth fault current exceeds the predetermined level, a diode 82 is forward-biased causing a transistor 84 to switch off. A capacitor 104 is now charged from a source 60 through resistors 86, 106A, 106B until a transistor 110 conducts, causing current to flow through resistors 114, 116, 118 and produce a voltage V7 at the base of a transistor 122 such that this transistor conducts and shunts the base-emitter circuit of a transistor 128. The transistor 128 ceases to conduct allowing the voltage V8 at the gate of a controlled rectifier 132 to increase. This causes the rectifier 132 to conduct and complete a circuit across a rectifier bridge 140 in circuit with the trip coil 147 of the circuitinterrupter 150. The voltage V8 is also applied through a diode 134 to the junction between resistors 116, 118 to provide the memory action which maintains the transistor 122 conductive until a reset switch 46 is opened. The time delay circuit may be disabled so as to obtain substantially instantaneous tripping by closing a switch 170 so that when the earth fault current is large enough, the voltage at a junction 172 on a voltate divider 88 renders a transistor 168 conducting to connect the base of the transistor 110 through a low resistor 94B to the supply conductor 31. The transistor 110 conducts to cause the tripping operation.
Patent GB-1428837-A (GB)
Title: Ignition systems
IPC: F02P5/155
Filed: 1973-07-20
Abstract: 1428837 Timing ignition; ignition systems ROBERT BOSCH GmbH 20 July 1973 [24 July 1972] 34731/73 Heading F1B A device for controlling the ignition timing in an ignition system of an internal combustion engine, in dependence upon at least one operating parameter of the engine, comprises a storage capacitor 10, a source of charging current 11 for charging the capacitor and a source of discharge current 12 for discharging the capacitor, both of the charging and discharging sources being adapted to be operable responsively to the rotation of a crankshaft of the engine to alternately charge and discharge the capacitor at predetermined angular positions respectively of the crankshaft, the device being operable at a predetermined state of charge of the storage capacitor and during a discharge period of the latter to provide a signal for triggering an ignition operation of the ignition system. The discharge rate of the capacitor is adjustable responsively to at least one operating parameter of the engine. The system comprises an evaluating switching device 14 connected to the storage capacitor for triggering the ignition operation. A controllable semi-conductor switch (not shown) when triggered by the output signal of the evaluating switching device 14 discharges an ignition capacitor by way of a spark gap of a spark plug of the engine. The timing can be controlled according to engine temperature, load and speed, the air temperature and the composition of the exhaust gas of the engine.
Patent GB-923471-A (GB)
Title: Organotin compounds
IPC: C08K5/57
Filed: 1961-09-27
Abstract: Bis(dialkyltin carboxylates) and bis(diaryltin carboxylates) of formula <FORM:0923471/IV(a)/1> where R (which may be the same or different) and R1 (which may be the same or different) represent C1-C18 alkyl or monocyclic aryl groups, and R1 may be additionally substituted by carboxy or hydroxy groups or halogen atoms, are used as heat and light stabilizers for polyvinyl chloride compositions.ALSO:The invention comprises bis(dialkyl tin carboxylates) and bis(diaryl tin carboxylates) of formula <FORM:0923471/IV(a)/1> where R (which may be the same or different) and R1 (which may be the same or different) represent alkyl or monocyclic aryl groups containing 1 to 18 carbon atoms.  R1 additionally may be substituted by carboxy or hydroxy groups or halogen atoms. They may be prepared by reacting a di-substitutedtin dihydride R2SnH2 with a carboxylic acid R1COOH: 2R2SnH2 + 2R1COOH --> R2Sn(COOR1)Sn (COOR1)R2 + 3H2 Under some conditions, a disubstituted-tin diacylate may be produced R2SnH2 + 2R1COOH --> R2Sn(COOR1)2 + 2H2.  The disubstituted-tin acylate may be further reacted with disubstituted-tin dihydride: R2SnH2 + R2Sn(COOR1)2 --> R2Sn(COOR1)Sn(COOR1)R2 + H2 Mixed and/or unsymmetrical compounds may be produced by using mixtures of tindihydrides (R32SnH2 + R42SnH2 or R3R4SnH2) and/or mixtures of carboxylic acids.  Solvents such as diethylether, heptane, hexane, toluene, benzene, cyclohexane or chloroform may be used when the reagents are not liquids.  The reaction may be conducted in an inert atmosphere, e.g. nitrogen.  An additional method of preparation consists in reacting a disubstituted tin compound R2Sn with an acyl peroxide (R1C(O)OO)2. The products may be used as heat and light stabilizers for polyvinyl chloride composititions (see Group IV(a)), and as biocides.
Patent GB-487756-A (GB)
Title: Pressure relief valves for fluid-circulating systems
IPC: F16K17/04
Filed: 1937-12-16
Abstract: 487,756. Valves. COVENTRY RADIATOR & PRESSWORK CO., Ltd., and PARKINSON, A. Dec. 16, 1937, No. 34814. [Class 135] An adjustable pressure relief valve for a liquid-circulating system such as the two tubes 11 of an oil-cooler comprises a detachable unit 17, arranged in a byepass chamber 16 and carrying the valve 23, which is removable, to enable the spring-loading of the valve to be accurately set by means of the adjusting screw 27, without having to adjust or detach any other parts.
Patent GB-603836-A (GB)
Title: Improved reamering machine for producing grooved formations round the edges or margins of ceramic hollow-ware
IPC: B28B11/12
Filed: 1945-12-22
Abstract: 603,836. Grooving ceramic ware. HARTLEYS (STOKE-ON-TRENT), Ltd., and ROWLEY, R. Dec. 22, 1945, No. 34839. [Class 124] In a machine for producing grooves around the edge of an article of ceramic hollow-ware, the open end of the article rests upon or is supported against a series of reamers, each rotating about its own axis and cutting across said edge. In the form shown, the reamers 19 lie in radial slots 22 in a rather flat, inverted, cone-shaped plate 20 with a surrounding inverted channel-section part 21 which is adjustable for height by means of packing between it and a horizontal flange 14 on a vertical casing 10. The reamers are carried by sleeves 17 in housings 15 and are driven by bevel pinions 18 meshing with a bevel crown-wheel 13 driven by an electric motor 11. The crownwheel carries fan blades 24 to draw trimmings downwards through the slots 22 and openings in the crown-wheel. The article 26 is centred by a ring 25.
Patent GB-633706-A (GB)
Title: Recovery of acetone, ethyl alcohol and butanol from their aqueous solution by distillation
IPC: C07C29/80
Filed: 1946-11-25
Abstract: The aqueous solution containing ethanol, butanol and acetone is introduced into a stripping column where the organic compounds in the solution are completely vaporized; the vapours are fed at an intermediate point into a second column from the head of which acetone is withdrawn while aqueous butanol is withdrawn at the base; a liquid mixture of ethanol, acetone and water is withdrawn from the second column at a point between the head and the feed inlet, and this liquid mixture is introduced into a third column from the head of which acetone with only traces of ethanol is withdrawn, while aqueous ethanol containing some acetone, is withdrawn at the base. Some acetone may be withdrawn as a hot liquid free from carbon dioxide from near the head of the second column.  The acetone with traces of ethanol withdrawn from the head of the third column may be passed to the top part of the second column.  The aqueous butanol withdrawn from the base of the second column may be cooled and passed to a separator; the aqueous layer may then be passed to the stripping column while the butanol layer is dehydrated in a fourth column.  In an example, a fermented liquor containing 2 per cent total solvents (comprised of 65 per cent butanol, 4 per cent ethanol, and 31 per cent acetone) is introduced into the head of the first column which is maintained at 193-198 DEG  F.  The vapours leaving this column are fed into the second column near the middle, a temperature of 180 DEG F. being maintained one-third the way between the middle and head of the column.  Acetone is withdrawn from the head, and aqueous butanol from the base, of this second column, and a liquid mixture consisting of 80 per cent acetone, 6 per cent ethanol and 14 per cent water, is taken off midway between the head and the middle of the column.  This liquid mixture is introduced into the third column where a head-temperature of 133 DEG  F. is maintained.  Acetone is withdrawn from the head of this third column, and the base product consists of 30 per cent ethanol, 10 per cent acetone, and 60 per cent water.
Patent GB-447964-A (GB)
Title: Machine for shaping and wrapping prismatic pieces of ice cream and the like in paper and the like
IPC: B65B25/06
Filed: 1935-12-16
Abstract: 447,964. Wrapping-machines. SCHWEIZERISCHE INDUSTRIE GES., and SCHLAEPFER, A., Neuhausen, Schaffhausen, Switzerland. Dec. 16, 1935, No. 34901. [Class 94 (i)] [See also Group V] A bar of ice-cream &c., is fed by a continuously running band to a cutter from which the pieces fall on to another similar band to be eventually transferred by grippers to wrappers on a further band. The speeds of the bands and grippers are chosen so as to keep the pieces separate throughout. A bar 1 of ice cream is fed by a feed band 2 against a stop 4, and a cutter 6 severs a portion 8 along the line 7. The stop 4 moves to position 4<1>, allowing the portion to fall on to a second feed band 9, and turning it over into the flat position. The portion 8 moves against a stop 10, which is arranged at such a height from the band 9 that small pieces pass beneath and out of the machine by a shoot 11. The portion against the stop 10 is gripped at the ends by wood-lined grippers 12, pivoted at 18 on a horizontally movable rail 19. The rail 19 moves in a vertically movable guide 22, so that the grippers 12 seize the portion, raise it and move it laterally to a position above a wrapper 13 and release it. The wrapping is effected while the portion moves over a plate 17.
Patent GB-654396-A (GB)
Title: Evaporator for an absorption refrigerating machine
IPC: F25B39/02
Filed: 1947-12-31
Abstract: 654,396. Refrigerating. SCHWENDIMANN, G. Dec. 31, 1947, No. 34957. Convention date, Sept. 28, 1946. [Class 29] An evaporator for a continuous cycle absorption refrigerating system comprises horizontally disposed concentric tubular members a, b the former being finned, the annular space between which contains refrigerant distributing means, liquid refrigerant and inert gas entering at the top, the gaseous mixture leaving at the bottom and the inner tubular member b being adapted to contain ice-making containers. The liquid refrigerant distributing means may be plates c which the refrigerant traverses in succession or may comprise a horizontal trough in the upper part of the evaporator beneath which the evaporator is filled with small glass balls, metallic fragments, metal rings, porous or vitreous materials or the like. The member b may be open or closed at one end or closed permanently at one end and by a door at the other end.
Patent GB-937350-A (GB)
Title: Ventilated mattress handle
Inventor: CONNOR FRED HERBERT WILLIAM
IPC: A47C31/08
Filed: 1961-09-29
Abstract: 937,350. Matress handles. PITATONE ENGINEERING CO. Ltd. Aug. 17, 1962 [Sept. 29, 1961], No. 35102/61. Class 52 (4). A mattress handle 2 includes an elongated hand hold member 6 which is fastened at each end 3 to a mattress cover 1 by means of a plug 5, extending through an opening 4 in the end portion 3 and through a hole in the mattress cover 1, and a retaining clip 15 which is sprung on to the inwardly projecting end 9 of the plug 5. The plug 5, which may be of polystyrene, is provided with ventilator holes 11 and a flange 12 having ribs 13. The clip 15 comprises an annular metal disc having inwardly directed, inclined radial teeth 16. The hand hold member 6 may be moulded from polyethylene.
Patent GB-164677-A (GB)
Title: An improvement in visiting and like cards
IPC: B42D15/10
Filed: 1920-12-14
Abstract: 164,677. Elder, D. Dec. 14, 1920. Visiting and like cards.-A visiting, business, or like card is made of sensitized paper, upon which a portrait is photographically printed, and the usual wording, such as the name and address, is printed photographically or otherwise. The cards may be produced by printing the portrait and wording at intervals on a strip of sensitized paper which is afterwards cut to the required size.
Patent GB-1154205-A (GB)
Title: Particle Precipitation from Gases
IPC: H02N3/00
Filed: 1966-08-05
Abstract: 1,154,205. Electrostatic precipitators. GOURDINE SYSTEMS, Inc. 5 Aug., 1966 [5 Aug., 1965], No. 35149/66. Heading B2J. Apparatus for precipitating particles contained in a gas stream comprises a conduit 10, Fig. 1, defining a flow path with upstream and intermediate and downstream portions 14, 23 a corona electrode 20 and an attractor electrode 18 to produce a radial space charge field in the fluid in the downstream portion. An axial ion-repelling field is produced in the intermediate portion by a dielectric nozzle 14. The radial space charge field causes particles to be driven to the boundary of the flow path in the downstream portion so that the particles are precipitated' from the fluid. The inner wall of the particle collecting section 23 has an earthed conductive liner 24. In operation, H.T. is applied across the electrodes 18, 20, and the charges on the ions and particles collected at the inner wall 24 are conducted to ground. The nozzle portion may include a stack of annular sections 36 Fig. 2 including particle traps 38 to prevent precipitated particles shorting out the section. In another embodiment precipitators leave via an annular opening 40, Fig. 3. Precipitators may be arranged in parallel stages, the corona electrodes being thin wire, and the attractor electrodes conductive strips, and particles may be dislodged from plates, which form a conduit wall, by rapping or vibrating. An aerosol may be injected into the working fluid to prevent "ion slip" (a condition where fluid velocity is greater than ion velocity). The aerosol liquid may be continuously recycled by a pump and an annular collecting reservoir.
Patent GB-400213-A (GB)
Title: Improvements in and relating to the housing and ignition of flares, and more particularly flares used on aircraft
IPC: B64D47/04
Filed: 1932-01-18
Abstract: 400,213. Aircraft flares and apparatus for dropping flares and the like from aircraft. NASH, A. F., London Road Works, Kingston-on-Thames. Jan. 18, 1932, Nos. 35153/31 and 7107/32. [Class 9 (ii).] Relates to apparatus of the kind in which a flare or the like is adapted to be extended beyond the general surface of some portion of the aircraft before being ignited or dropped, and consists mainly in arranging the extensible means to establish an electrical connection with a source of electrical energy when the means are extended. As shown in Fig. 2, a flare 15 is carried by a socket 14 on an arm 13, which is pivoted at 16 and is adapted to be swung out by a spring 19 when a door 2 hinged along one of its sides is unlocked as shown in Fig. 4; and when the arm 13 is thus extended, contacts 26 thereon are brought into engagement with fixed contacts 29, whereupon the flare can be ignited or dropped. The door 2 may be locked in various ways, for example by a hook-lever 8, Fig. 7, interlocked under the influence of a spring 6 with the pivoted armature 9 of an electromagnet 12, which is energized to unlock the door. The outward swing of the arm 13 is delayed by a dash-pot 23 connected by a rod 22 to a lug 21 on the arm 13. The flare 15 is held in the socket 14 by a catch 50 connected by a link to a bell-crank 56 co-operating with a cam 58, which is pivoted to the arm 13 at 59 and has a tooth 60 adapted to be engaged by a hooklever 61 interlocked under the influence of a spring 62 with the armature 63 of an electromagnet 64. The cam 58 prevents any release of the flare so long as the arm 13 is enclosed by the door 2 ; but when the door is open and the arm in the extended position, energization of the electromagnet 64 will free the cam 58 and allow the catch 50 to be turned by a spring to jettison the flare. Extensible shields to prevent the flare from interfering with the airman's vision are also described. In one form, Fig. 4, the shield comprises a number of pivoted blades 49, 49a .. 49d which open out like a fan when a pinion 42 is rotated by a rack 41 under the influence of a spring in a link 44 when the flare supporting arm 13 is swung out. In a modification, Fig. 14, the fan-like set of blades 72, 72a .. 72d, pivoted at 73 on a slide 77, are opened out as shown by a spring 75 when the slide 77 is lowered by gravity, the slide 77 being mounted on the flare carrying arm 71 and the blades being normally confined by rollers 79 when the slide 77 is pulled up. The rollers 79 also serve as stops for the slide 77.
Patent GB-461587-A (GB)
Title: Improvements in spring suspension means for wheeled vehicles
IPC: B60G3/18
Filed: 1935-12-19
Abstract: 461,587. Vehicle spring-suspensions; linkwork. HEYERMANS, C., and SARTORIS, G. U. L. Dec. 19, 1935, No. 35222. [Class 108 (ii)] [Also in Group XXIV] In a vehicle spring-suspension for independent steering wheels the stub axle is connected to the steering pivot, king pin, or the like by two or more pairs of folding links, the links of each pair being hinged together and also to the connected parts upon parallel axes, lying at an angle to the axes of the other pair or pairs of links in combination with spring control of the folding and unfolding movements of the links by springs which turn with the wheels in the steering movement. At the end of the axle beam e a support c is pivotally mounted on an inclined pin d and is provided with bosses c<1>, c<2> extending horizontally and at right angles to one another. Upon these bosses are pivoted the lower hinge pins of two pairs of hinged links f, f <1> and g, g<1> folded to an acute angle, the upper hinge pins engaging in a similar manner in two horizontal perpendicular bosses h<1>, h<2> upon a member h to which the wheel stub axle is secured. The pairs of links are each constrained to move in a vertical plane and consequently the member h is constrained to move along a vertical rectilinear line representing the intersection of the two planes. As shown, a coiled spring is arranged between an abutment k<1> on the member h and a washer l<2> carried by a rod l<1> secured to the bell-crank end l of the link g. Any other spring suspension may be employed.
Patent GB-822750-A (GB)
Title: Improvements in or relating to titanium base alloy sheet materials
Inventor: BROOKS HAROLD
IPC: B23K20/233
Filed: 1956-11-19
Abstract: A titanium base alloy contains an element such as carbon and/or boron, which forms a stiff second phase in the alloy, e.g. 25% C remainder Ti, 2% B remainder Ti, 5% Al, 3% Mo, 1% B, remainder Ti, and is clad on the opposed faces with relatively thin sheets of ductile pure titanium or titanium alloy e.g. 5% Al remainder Ti.
Patent GB-972874-A (GB)
Title: Improvements in frames comprising girders
IPC: A47B53/02
Filed: 1962-09-17
Abstract: 972,874. Cabinets; furniture joints. H. INGOLD. Sept. 17, 1962 [May 24, 1962], No. 35304/62. Headings A4B and A4W. A supporting framework 1 with rails upon which run movable cupboards or shelf units 2, 3 has longitudinal girders 5 and transverse rods 6 having slots 21 which are engaged by tabs 17 on girders 5, the tabs being bent to secure the parts together.
Patent GB-777612-A (GB)
Title: Improvements in or relating to axial-flow fluid machines
Inventor: HAWORTH LIONEL
IPC: C07C35/27
Filed: 1954-12-06
Abstract: 777,612. Axial-flow compressors. ROLLS-ROYCE, Ltd. Nov. 23, 1955 [Dec. 6, 1954], No. 35320/54. Classes 110 (1) and 110 (3). In a rotor for an axial-flow fluid machine, of the type including a rotor drum or disc structure with blades pivoted at its periphery, the inlet ends of fluid passages in the pivoted blades and fluid supply passages in the rotor structure meet at positions offset from the respective pivot pins in surfaces of the blade roots and the rotor structure which are urged into contact by operational loads. Fig. 1 shows the first-stage rotor blades 19 of a compressor forming part of an aircraft gas turbine plant. Blade root lugs 28 are intercalated with flanges 27 on the rim of a rotor disc 18 and pivoted thereto by pins 29. Hot air from a later stage or the delivery of the compressor is conveyed through stationary structure to the rotor and thence through slots 20a to an annular manifold 24, from which it passes through drillings 37 in the rotor disc 18 and radial channels 36 in a disc 30 to an annular space 38 formed between the disc 30 and the rotor disc 18. The hot air then passes by way of holes 41 in the upstream flange 27 and overlapping drillings 42 in the upstream lugs 28 to drillings 25 in the leading edges of the blades 19, where it prevents or reduces ice formation on the blades. In operation the axial forces acting on the blades 19 press the upstream face of the upstream lug 28 against the downstream face of the upstream flange 27, thereby substantially avoiding leakage between the holes 41 and 42; to prevent the lug and flange being forced apart by any such leakage, an annular groove 44, through which the leakage can escape freely is formed around the hole 42 and communicates with the space radially outside the rim of the rotor disc 18. Leakage around the pivot pins 29 is prevented by lands 39 projecting from the disc 30 into contact with adjacent flange 27 around the end of each pivot pin. In the embodiment shown in Fig. 5, hot air is supplied through a passage 63 in the bearing housing and thence through the space between two annular sealing flanges 62 to the space 70 between a rotor disc 51 and a disc 66. A ring 74, Figs. 5 and 7, has radially extending corrugations 76 welded to the disc 66 to afford passages through which the hot air flows to cylindrical transfer pieces 78 which lead by way of drillings 60 to passages 59 in the leading edges of the rotor blades 57.