baber/WOPTO huggingface dataset:
Patent GB-352286-A (GB)
Title: Improvements in the construction of wings and like structures for aircraft
IPC: B64C3/00
Filed: 1930-08-06
Abstract: 352,286. Aircraft wings. BOULTON & PAUL, Ltd., Riverside Works, and NORTH, J. D., Hill House, Eaton Hill, both in Norwich. Aug. 6, 1930, No. 23487. [Class 4.] An aircraft wing or like component comprising two deep and narrow spars connected by ribs has the front spar braced to a stiff leading edge section to support it against lateral failure. Alternatively the rear spar may be braced by an additional longitudinal member adjacent to it. As shown, the front spar comprising booms A<1>, A<2> and a web A<3> is braced to a leading edge section C by struts D . . D<4> connected to the web A<3> at its neutral axis. The struts are connected to the section C preferably at the points where the ribs B are connected. The rear spar is supported against lateral failure by its connection to the ribs B. In a modified construction, alternate bays between pairs of ribs and the front spar and leading edge are braced by cross wires extending from the intersections of the ribs with the upper boom A<2> to the intersections with the lower edge of the leading edge member and by similar wires extending between corresponding points on the lower boom A<1> and the upper edge of the leading edge member.
Patent GB-474697-A (GB)
Title: Improved carburettor for internal combustion engines
IPC: F02M3/04
Filed: 1936-08-27
Abstract: 474,697. Spray carburetters. SOC. ANON. DES ATELIERS GAMAIN. Aug. 27, 1936, No. 23522. Convention date, Aug. 27, 1935. [Class 7 (iii)] In a carburetter having a suction pipe carrying a float chamber cover and a float chamber carrying main and auxiliary fuel jets, opening movement of the throttle valve closes a conduit leading from the atmosphere to the auxiliary fuel jet. The fuel enters the main jet 13 through a calibrated orifice 13a and. is aerated by air admitted through holes 16a and a passage 16 before being discharged through an orifice 18a. An auxiliary jet 14 is supplied with fuel through a calibrated orifice 14b and aerated with air supplied through a conduit 19 before being discharged through a nozzle 14a. As the throttle opens a cam 5 reduces the supply of aerating air through the conduit 19. Both the normal and the auxiliary fuel jets have reserves of fuel which are drawn into the suction pipe during acceleration. During starting, a valve 20 having an arcuate groove 28 is rotated to allow a starting jet to deliver rich mixture through passages 23, 24 to the engine side of the throttle 4. When the engine is to be used as a brake, the valve 20 is rotated to admit air from a port 26 through the groove 28 and passage 24; simultaneously an orifice 30 in the valve, leading to the atmosphere is brought into register with a passage 25 connected to the idling passage 25a.
Patent GB-914251-A (GB)
Title: Improvements in and relating to magnetos
Inventor: GRIFFITHS LEONARD
IPC: F02P1/00
Filed: 1958-07-22
Abstract: 914,251. Ignition generators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 21, 1959 [July 22, 1958], No. 23545/58. Class 35. A magneto is provided with a distributer comprising cooperating contacts, one of which is supported on the inside of a cover closing one end of the magneto casing, and the other of which is carried at the open end of a cup-shaped member which has a permanent magnet rotor secured to its inner wall. In an embodiment suitable for a twin-cylinder engine a shaft 1 carries at one end a non-magnetic cupshaped member 3 which supports the rotor magnets 4 and polepieces 5. On the open end of member 3 is a slip-ring support having an insert 6a which co-operates with brushes 6g, connected to the armature secondary winding through centre contact 19e, and with brushes 19h (Fig. 4) connected to the two output terminals. Slip-ring insert 6a interconnects pairs of brushes as it rotates. The armature primary winding is connected to an earth terminal and through a tag to condenser 15 and an interrupter (Fig. 2) including a lever 13 which co-operates with disc 8, having two cam lobes, mounted on shaft 1 to actuate the interrupter. Disc 8 also has a diametrical slot 8a into each end of which projects a lobe of an angle-lever AL (Fig. 7, only one shown) which has a centrifugal weight 9 biased inwardly by spring 11. Disc 8 is free to move angularly on shaft 1 and as the speed of rotation increases weights 9 move outwards and interrupter operation is advanced. Cover 19, which supports the armature is preferably of moulded resin. For single cylinder ignition only one cam lobe is needed.
Patent GB-1515776-A (GB)
Title: Pulsed excitation alternator
IPC: H02K33/00
Filed: 1976-06-08
Abstract: 1515776 Alternators J H JARRET and J M B JARRET 8 June 1976 [9 June 1975] 23565/76 Heading H2A An alternator includes a coil 1 which is surrounded by a yoke 2 which co-operates magnetically with a cyclically moving magnetic body 3, the ends of the coil being connected to terminals of a constant voltage source 5 via controlled valves 6a, 6b, and each coil end having a further connection to the terminal of opposite polarity via a monodirectional current link 7a or 7b. In the position of Fig. la, valves 6a and 6b are closed for a short duration, and a current pulse flows through coil 1 to magnetize the magnetic circuit. Valves 6a, 6b are then opened, Fig. lb, and the reduction in flux in the circuit as part 3 moves to the right causes a voltage to be induced, current flowing in the links 7a, 7b. On reaching the end of its travel to the right, (Fig. 1c, not shown) the current is abruptly interrupted; and no current flows during the return stroke (Fig. 1d, not shown). Valves 6a, 6b may be thyristors, and links 7a, 7b may be diodes. Rotary alternators are also envisaged.
Patent GB-601225-A (GB)
Title: Improvements in and relating to a method of preparing ferrous metals for cold drawing and to the method of cold drawing
IPC: B21D22/20
Filed: 1944-11-27
Abstract: A lubricating composition, intended more particularly for use in the cold drawing or forming of ferrous metals under pressure comprises oleaginous material, sulphur and water.  The sulphur may be chemically combined or intimately mixed with the oleaginous material and may exist in concentrations from one-half of 1 per cent to 15 per cent.  The concentration of water may vary between one-half of 1 per cent to 5 per cent.  The ferrous metal to be drawn is immersed in a bath of the composition, preferably at a temperature of from 125 DEG to 160 DEG  F. until a heavy black coating is formed thereon after which it is removed and subjected to the drawing operation.
Patent GB-1139123-A (GB)
Title: Purification of enzyme inhibitors
Inventor: WERLE EUGEN
IPC: C07K14/81
Filed: 1967-05-22
Abstract: 1,139,123. Enzyme Inhibitors. FARBENFABRIKEN BAYER A.G. 22 May, 1967 [26 May, 1966], No. 23654/67. Heading A5B. Proteolytic enzyme inhibitors are purified (concentrated) by contacting an impure aqueous solution of the inhibitor with a waterinsoluble polymer-enzyme combination material whereby at least some of the inhibitor is sorbed by the combination material, separating the combination material from the unsorbed aqueous phase, and desorbing a purified aqueous solution of the inactvator from the combination material, the latter having been formed by contact of a proteolytic enzyme, inhibitable by the inhibitor, with a polymeric material cross-linkable by this proteolytic enzyme. The inhibitor may be trypsin, kunitz or kallikrein inhibitors; the enzyme may be trypsin, chymotrypsin or kall-krein and examples of suitable polymeric material are ethylene-maleic anhydride copolymer, maleic anhydride-vinylpyrrolidone copolymer and methacrylic acid-methacrylic acid-3-fluoroanilide copolymer. In a modification of the process, the combination material is water-soluble and, as the impure aqueous solution, serum containing the inactivator is used. The inhibitor is subsequently desorbed by shifting the pH and/ or modifying the ion concentration and/or displacement by means of competitive inhibitors or enzymes e.g. tryptamine, n-butyl-amine or epsilon-amino caproic acid for trypsin, and/ or by the addition of substances, such as urea, which are capable of loosening or dissolving molecular interactions, possibly by a reversible denaturation of the proteins concerned.
Patent GB-1218415-A (GB)
Title: Process for the simultaneous preparation of 1,2-dichloroethane, 1,1,2-trichloroethane and 1,1,2,2-tetrachloroethane using a fixed bed catalyst
Inventor: BENAROYA GUY DU CREST GERARD
IPC: C07C19/055
Filed: 1968-05-17
Abstract: 1,218,415. Oxychlorination process. PRODUITS CHIMIQUES PECHINEY - SAINTGOBAIN. 17 May, 1968 [19 May, 1967], No. 23673/68. Heading C2C. 1,2 - Dichloroethane, 1,1,2 - trichloroethane and 1,1,2,2 - tetrachloroethane are produced by passing a gaseous mixture comprising a mixture of ethylene and vinyl chloride containing at least 20 molar per cent of ethylene and at least 7 molar per cent of vinyl chloride, molecular oxygen and HCl through at least one reaction zone containing a fixed bed catalyst, the maximum temperature in the reactor being from 340‹ to 420‹ C. The gaseous mixture may be passed through two successive reaction zones operated such that the rate of reaction in the first zone is less than that in the second zone. The different operating conditions in the two zones may be achieved by using different catalysts, temperatures, pressures or flow rates, by regulating the quantity of ethylene and vinyl chloride mixture reacting before it reaches the exit from the first zone, by using zones of different crosssections, by regulating the molar ratios of the reactants or by using catalyst supports having different average specific surface areas. Specified catalyst supports are silica, silicates, clays, alumina, aluminosilicates, magnesia, graphite or alumina. Pentachloroethane may be produced as a by-product.
Patent GB-1014633-A (GB)
Title: Improvements in aircraft landing system
IPC: G01S1/64
Filed: 1962-06-20
Abstract: 1,014,633. Radio navigation. CUTLERHAMMER Inc. June 20, 1962 [June 28, 1961], No. 23777/62. Heading H4D. Specification 940,509 describes an aircraft landing system utilizing two spaced radio beacons, each beacon transmitting a vertically scanning horizontal fan beam modulated with pulse signals coded in accordance with the instantaneous elevation of the beam, and apparatus in the aircraft for decoding the beam signals to afford an error signal indicating deviation of the aircraft from a predetermined landing path. In the present invention a fixed glide angle guidance beacon, e.g. a standard I.L.S. glide path beacon or a non- scanning beam replaces the scanning beam at the " front " site. In the aircraft computing apparatus of Figs. 16 and 17 of Specification 940,509 the angle a is inserted as a constant corresponding to the I.L.S. glide path. Computation of ground speed as described in that Specification may not be accurate: the speed is inserted as a constant value or by the pilot.
Patent GB-946678-A (GB)
Title: Improvements in or relating to rock drilling and like boring apparatus
Inventor: STENUICK ANDRE
IPC: E21B17/18
Filed: 1960-07-07
Abstract: 946,678. Percussive drills. HALIFAX TOOL CO. Ltd. June 29, 1961 [July 7, 1960], No. 23814/60. Heading B4C. [Also in Division E1] A " down the hole " percussive pneumatic drill has conduit means to supply flushing liquid or gas into the bore hole independently of the compressed air for operating the drill. The drill comprises a cylinder 1, a bit 4, a piston 6, and a distributer valve 7 controlling ports 9, 10 for supplying air below the piston and ports 11 for supplying air above the piston. The cylinder is slidable on a shock absorber piston 13 having ports 15 for the supply of air to a check valve 17 immediately above the valve 7. The piston 13 is connected to the drill string 19 which is formed by tubes according to Specification 946,679 and is connected to a rotation motor at the earth's surface. The piston has a plunger 30 which projects into a bore 34 of the valve chest 8 of the valve 7 when the drill is reciprocating against the earth, the plunger and bore forming a bypass valve which is the subject of Specification 946,677. The drill string has a central conduit for the passage of the flushing fluid and connected by a coupler 44 to a tube 42 which discharges fluid into a central bore 51 of the bit having outlets 52. The operating air for the drill passes through the string in the annulus about the central conduit to the interior of the piston 13. Air passes down through the ports 15 and valve 17 to the valve 7. The valve 7 supplies air above the piston 6 through ports 11 when the valve is raised due to air pressure below it, and supplies air below the piston 6 through ports 9, 10, ducts 23, 24 and ports 25 when in its lowest position. Towards the ends of the downward and upward strokes of the piston 6 air is exhausted through ports 12, space 35, channels 36, and the bore 51 in the bit. When the bit is moved out of contact with the earth the plunger 30 withdraws from the bore 34 and most of the air passes to above the piston 6 to hold it down and stop reciprocation whilst the rest of the air flows through the ports 10 and ducts 24 to the bit. The drill is suitable for sub aqueous drilling. Specifications 714,663, 844,607 and 844,608 also are referred to.
Patent GB-484195-A (GB)
Title: Process for the treatment of liquid or semi-solid foodstuffs for preserving them
IPC: A23C3/00
Filed: 1936-09-01
Abstract: Liquid and semi-liquid foodstuffs, more especially dairy products such as fresh, condensed or skim milk, cream and butter, and meat broth, meat and cheese pastes, oil emulsions and mayonnaises, are preserved by first freeing the material from dissolved gases, enclosing it in an atmosphere of undiluted oxygen under pressure, the pressure not exceeding 20 ats. and being preferably about 8 to 12 ats., the material being heated in this atmosphere to a temperature at which no change in the physico-chemical properties or taste occurs, allowing the material to cool down or cooling it artificially while keeping it in the atmosphere of oxygen under pressure and then storing it in this atmosphere.  The heating may be at temperatures up to 80 DEG  C., preferably at 50-65 DEG  C.  Higher temperatures and pressures and longer heating periods are used with materials of higher than with those of lower nutriment contents.  The material may be freed from gases by forcing oxygen through it.  Examples of the treatment of meat broth, whole milk and evaporated or condensed milk are given. Specification 420,985 is referred to.
Patent GB-258911-A (GB)
Title: Leading apparatus for type composing and casting machines
IPC: B41B11/00
Filed: 1926-09-28
Abstract: 258,911. Waeber, A. Sept. 28, 1925, [Convention date]. Leading-mechanism for single-type composing and casting machines. The leads 28, Figs. 1 and 2, which are supported on two holders 8, 8<1>, mounted on a movable slide 5, and adjustable as regards their distance apart, are delivered to the galley by catches 37 on a vertically moving leading-plate 24, the catches retreating into the leading-plate during the upward movement. The catches are carried by a spring-pressed pivoted member 35, having an adjusting-screw 38. The plate 24 is actuated by the vertically moving galley-screen 43. The slide 5 is clamped by a set-screw 6 in guides in a frame 1, secured to the composing-machine, so that it can be retracted to give access to the line-channel. The lend-holder 8 is mounted in a groove in the slide 5, and is adjustably connected to the holder 8<1> by a slotted extension 17 and a bolt 20. The holder 8<1> is supported by screws 22 passing through slots in a bar 16, which can move in guides 15 on the slide 5. A screw 10, having a knob 11, enables the distance of the ends of the holders from the plate 24 to be adjusted. The plate 24 is guided on strips 23, 23<1>, carried on the slide 5 and bar 16 respectively, by means of lugs 25, one of which is adjustable. Guides 50, 51 for the leads are formed on the plate 24. A hook 33 on the plunger 29 is adapted to engage a notch 34, in order to hold the plunger in retracted position. A stopplate 40 prevents the leads from being lifted during the upward movement of the leading-plate.
Patent GB-403769-A (GB)
Title: A combination pocket tool
IPC: B25F1/02
Filed: 1932-08-27
Abstract: 403,769. Combination wrenches and screwdrivers. HIBBARD, C. G., 75, Arundel Street, Sheffield. Aug. 27, 1932, No. 23991. [Class 61 (iii).] A pocket combination spanner and screwdriver comprises a tubular body a formed with box sockets b, c adapted to receive plugs e, one carrying a recessed screwdriver d and the other an ordinary screwdriver f ; the plugs are held in the sockets in operative or reversed position by ball catches g and may be formed with box sockets h. A clip j is provided for securing the tool in the pocket. Holes i, i are provided to receive a tommy bar, the hole i being in the form of a slot enabling the tool d to be received therein to serve as a tommy bar.
Patent GB-1499712-A (GB)
Title: Gas turbine control
IPC: F02C9/50
Filed: 1976-06-10
Abstract: 1499712 Controlling gas turbines GENERAL MOTORS CORP 10 June 1976 [20 June 1975]  23993/76 Heading G3N A (known) gas turbine installation Fig. 1 (not shown) employs "burner variable geometry", BVG, to determine the ratio between primary air-flow and total air-flow in the turbine's burner. The invention provides a control system for such an installation, based on measurement of burner inlet and burner outlet (or turbine inlet) temperatures BIT and TIT. The control establishes a ratio of primary-to-total air-flow equal to the ratio of burner temperature rise #T B  to flame temperature rise #T F , these rises being respectively equal to TIT minus BIT and flame temperature minus BIT. Fig. 3 shows the preferred control arrangements. An actual turbine speed signal N 1  determines total air-flow WA and multiplication at 47 by a fuel/air ratio F/A establishes a desired fuel flow-rate W F . F/A is itself automatically adjusted for such variables as speed error, established at 52, and for variations in BIT, the latter adjustment depending on whether the operating conditions are of acceleration or deceleration. The thus-established value of F/A is fed not only to the multiplier unit 47 but also to a subsystem which derives from the value of TIT, measured at 28, a compensated TIT for comparison at 71 with measured BIT and which passes the difference #T B  to a divider 75. Here, it is divided by the flame temperature rise #T F  which is in turn derived from a desired value of flame temperature TF and the measurement of BIT, with certain compensations for operating conditions. Finally, #T B /#T F  affects BVG to achieve the required value of W P /W T  under running conditions. During start-up, however, the control may be modified by special arrangements 19, 87.
Patent GB-508266-A (GB)
Title: Improvements in or relating to regulating devices
IPC: G05B1/04
Filed: 1938-08-15
Abstract: 508,266. Automatic control systems. SIEMENS & HALSKE AKT.-GES. Aug. 15, 1938, No. 24050. Convention date, Aug. 14, 1937. Addition to 444,673. [Class 38 (iv)] Temperature humidity.- Relates to a regulating arrangement having a return control device serving to restore the regulator to a condition of equilibrium after an impulse has been transmitted as described in the parent Specification and consists in providing a return control device comprising a number of temperature responsive resistances connected in the circuit of the impulse transmitter and arranged in spaced relation to a heat conducting bar heated in dependence on the impulse transmitted. In the form shown in the drawing, in which regulation of the temperature of a furnace 1 by the adjustment of a fuel valve 13 is effected by means of a reversable motor 13, operated by a moving coil instrument 4 connected in a bridge unbalanced by a temperature resistance 2 in the furnace, the return control device comprises temperature responsive resistances 35-40 connected in two groups in the arms of the bridge and arranged in spaced relationship to heat-conductive bars 33, 34 which are heated in dependence on the impulse transmitted by means of heating coils 31, 32. Adjustment of the return control device to the characteristic of the process being controlled may be effected by the positioning of the resistances along the bars and by means of shunt resistances 41-46. The system may also be used for regulating the moisture content in paper during manufacture.
Patent GB-1324906-A (GB)
Title: Fluid conduits
IPC: B29C44/18
Filed: 1971-04-19
Abstract: 1324906 Extruding pipe couplings IPP INDUSTRIAL POLYMER PROCESSING SA 19 April 1971 [13 March 1970] 24083/71 Heading B5A [Also in Division F2] In embedding preformed flexible tubes 10, in a surrounding foamed plastics mass to form a multi-channel conduit, with end plates 19, 20 as part of the finished article, the end plate 19 is secured in a forming head, constructed of two water-cooled jackets 52, 53, hinged together. As a molten mixture of polyolefin and a foaming agent is supplied at 61, plate 20 is partly pulled and partly ejected from the end of the forming head, thus pulling the tubes 10 through the holes in plate 19. Holes 62 prevent the formation of air pockets in the foamed material. When the desired length of conduit has been made, after cooling, the head is opened to release plate 19. Another form of plate 19 may be pulled through the head without opening it. The plates 19 and 20 may be of glass fibre reinforced polyamide. Polyurethane is an alternative material for the foamed mass.
Patent GB-637261-A (GB)
Title: Double adjustable regulating valve for radiators or similar heating apparatus
IPC: F16K1/52
Filed: 1947-09-01
Abstract: 637,261. Valves. BRUUN, C. Sept. 1, 1947, No. 24100. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 1, 1947.] [Class 135] A radiator &c. valve comprises a plug i having an asteroid-shaped aperture m therethrough adapted to be shrouded by a sluice plate f, the plug being rotatable into alignment with the inlet k and outlet l of the valve through the plate f which extends into the plug and is actuated by a threaded spindle d. The spindle handle e is fitted with a depending pointer which engages an arcuate slot t in a valve flange rand indicates the position of the plug.