baber/WOPTO huggingface dataset:
Patent GB-774502-A (GB)
Title: Gas turbine plant
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F02K3/062
Filed: 1954-07-01
Abstract: 774,502. Gas-turbine plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 30, 1955 [July 1, 1954], No. 19357/54. Class 110 (3). In a gas-turbine power plant comprising a rotor carrying two concentric rows of blades one within the other, the two rows operating at different temperatures, the blades of the blade row operating at the lower temperature are mounted at their ends nearest the other blade row on an annular support member to which is connected one end of an axiallyextending ring which is formed with a plurality of axially-extending slits open at the other end of the ring. The slits provide between them a plurality of flexible fingers, the end of each finger being secured to one of the blades of the other blade row at the end of that blade nearer the first-mentioned blades. The gas-turbine plant shown is of the ducted-fan type and comprises two contra-rotating turbine rotors 4, 6, the turbine 4 being connected through shaft 5 to the compressor 3, and the turbine 6 being connected to the ducted fan blades 7 which are disposed in the duct 8. The blades 6a mounted on the rotor disc 6 have tip shrouds 6b which are not connected with each other. A thin sheet metal frusto-conical ring 10 having flanges 10a, 10e at its ends is formed with axial slits 10b (see Fig. 3), the slits forming axial fingers 10d and the flange 10e on each finger 10d is secured to a blade tip shroud 6b. The other flange 10a of the ring 10 is secured to a built-up annular support member 9 which is formed with a groove 9a in which the roost of the ductedfan blades 7 are mounted. A second ring member 11 having axial slits 11b forming fingers 11a is secured by flanges on the fingers 11a to the individual tip shrouds 6b. Interengaging sealing rings 9c and 1b are mounted on the support member 9 and combustion chamber outer casing 1a respectively. Cooling air flows from the space between the combustion chamber casing 1a and the wall 2 of the annular flame tube between the blade shrouds 6b, 4b and the support member 9 through the slits 10b, 11b in the rings 10, 11. The outer wall 13 of the ducted fan is connected by struts 14 to the combustion chamber casing 1a, and carries a row of stationary blades 15. The invention is also applicable in the case of gas-turbine plant in which the annular compressor flow channel is disposed around the annular turbine flow channel. Specification 774,503 is referred to.
Patent GB-386650-A (GB)
Title: Improvements connected with signs and traffic control indicators
IPC: G08G1/09
Filed: 1931-07-06
Abstract: 386,650. Signs and traffic-control signals. WILD, E., 11, St. Clements Road, Nechells, Birmingham. July 6, 1931, No. 19368. [Classes 40 (i) and 118 (ii).] Signs and traffic-control indicators are adapted to be illuminated by artificial light or daylight by means of louvre shutters. In a casing 3 louvres 4 formed on their fronts as reflecting surfaces are pivotally mounted at each end on a support 5 and connected together by a link 6 with a stud 18 to engage a forked pivoted lever 7, moving between stops 13, 14 and at the other forked end 9 engaging a pin 8 on a rod 10 connected to the cores of two solenoids 11, 12 which are adapted to be actuated alternatively to open and close the louvres 4. With the louvres closed to form a continuous reflecting surface, daylight is reflected from the surface through a stencil 15 in front of the louvres to illuminate the sign formed by the stencil. For use at night an electric light 16 is positioned in the casing, the stencil 15 then being illuminated with the louvres. in the open position shown in Fig. 2. A dash-pot or other suitable device may be employed to retard the action of the solenoids, whilst the stops 13, 14 against which the lever 7 engages may be formed as contacts for completing and breaking the circuits by which the solenoids 11, 12 are energized. A series of signs may be mounted together and arranged to operate one after the other or in any other suitable manner,. one sign controlling the circuit for another, whilst dashpots may be connected to the louvres in a suitable manner to retard their speed of opera. tion. A traffic control indicator may be constructed as above with the pivoted louvres behind the usual coloured lens, the louvres being operated by the usual arrangement for controlling the light source. Specification 356,501, [Group XVIII), is referred to.
Patent GB-663757-A (GB)
Title: Improved method of producing ammonia from hydrogen and nitrogen
IPC: C01C1/04
Filed: 1948-07-19
Abstract: Ammonia is synthesized from nitrogen and hydrogen at temperatures not exceeding 450 DEG C. and preferably at 250-400 DEG C using a catalyst containing copper and at least one of the metals iron, nickel or cobalt.  Nitride forming metals such as magnesium or vanadium may also be present.  The catalysts may be prepared for example by thermal decomposition of formates, acetates of cyanides, the metals being deposited on an alumina carrier. Specification 640,170 is referred to.
Patent GB-169050-A (GB)
Title: Improvements in and relating to expanding bracelets
IPC: A44C5/08
Filed: 1920-07-08
Abstract: 169,050. Arkinstall, J. July 8, 1920. Bracelets.-Each unit of an expanding bracelet comprises a slotted centre link a and two pairs of side links b having cross-bars f passing through the link a and acting against springs e. The pairs of side links b are extensibly connected to the corresponding links of the adjacent units by parallel rods surrounded by springs d acting between heads on the rods and the ends of the links.
Patent GB-491108-A (GB)
Title: An improved displacement flow meter
IPC: G01F1/52
Filed: 1937-07-13
Abstract: 491,108. Fluid - meters. COXETER & SON, Ltd., and WELLESLEY, G. July 13, 1937, No. 19416. [Classes 54 and 69 (i)] A flow meter for fluids comprises a liquid column which is temporarily moved by the flowing fluid in order to indicate the flow, the movement also serving to displace a quantity of the fluid to maintain delivery of it from the meter during the indicating period. The figure shows an apparatus for delivering a mixture of cyclopropane and oxygen for anaesthetic purposes, and comprising a similar metering device for each. The apparatus consists of a sight-feed tube 5 and measuring tube 6 for the oxygen, and similar tubes 7, 8 for the cyclopropane, extending between headers 3, 4. The lower ends of the tubes 5, 6 communicate by way of apertures 15, 16 and a passage 14 in the header 4, so forming a U- tube for containing the indicating liquid. The oxygen is delivered by a pipe 9 and bubbles from perforations 13 in its lower end through the liquid. From the top of the sight-feed tube 5, the oxygen passes by way of a duct 18 and normally-open cock 19 to the space above the liquid in the tube 6, whence it passes by a duct 20 to the delivery orifice. When, however, the flow is to be measured, the cock 19 is closed, the incoming gas then depressing the liquid in the tube 5 and causing it to rise in the tube 6, the flow being read by noting the time taken for the delivery of a given volume as indicated by the rise of liquid against a scale on the tube 6. Whilst the liquid is rising it displaces the oxygen trapped above it in the tube 6 so that the feed to the outlet continues. The cyclopropane is similarly measured in the tubes 7, 8 and passes either into the duct 20 for delivery together with the oxygen, or into a duct leading to a separate outlet.
Patent GB-749699-A (GB)
Title: Refining petroleum distillates
Inventor: POTTER EDWARD BARRIE VERNON
IPC: C10G27/08
Filed: 1953-07-14
Abstract: Sour petroleum distillates are treated with cupric chloride, an adsorbent and an oil-soluble phenol or amine antioxidant. Antioxidants referred to are substituted phenols, naphthols, phenolic amines and aliphatic and aromatic amines, e.g. 2, 6-di-t-butyl 4-methyl phenol, 2, 4-dimethyl-6-t-butyl phenol and di-sec. butyl-para-phenylenediamine.  The adsorbent may be a clay such as fullers earth.  The petroleum distillate may be a gasoline, or a catalytically cracked naphtha.  The Provisional Specification refers to the use of antioxidants in general.
Patent GB-196187-A (GB)
Abstract: 196,187. Watson, R. May-1, 1922. Registering time of working of machines.-A motor vehicle is provided, with time-driven counters controlled by the running of the vehicle and of its engine so that the aggregate times during which the vehicle is running, the motor is idling and both are stationary can be obtained. In the form shown diagrammatically in Fig. 2, three time meters S, I, R are adapted to be driven electrically from a battery c and the various circuits are controlled by a hand-switch K and by automatic switches m, v. The switch m is operated by a bellows 4 connected by a pipe 5 with the intake of the motor B and switch v is operated through a lever 12 by a centrifugal governor driven by the propeller shaft 3. When the vehicle and the motor are at rest, the switches permit actuation of the register S. If the vehicle is running, switch v is shifted by the governor so as to cut out register S and throw in register R. When the vehicle is stationary with the engine running, switches m and v effect closure of circuit to register I to the exclusion of registers S and R. In the form shown in Fig. 3, the registers are of the rotary counter type and are driven by friction wheels 29, 30 adjustable along a clockdriven shaft 28 by means of clutch levers 38, 36 controlled by magnets 40, 37 wired to the switches v, m as in the first construction. Normally the counter S<1> is driven from the shaft by wheel 30 but when the motor starts the magnet 37 slides the wheel upwards into gear with the counter I'. If now the vehicle is put in motion, the govenor breaks circuits to magnet 37 and closes circuit to magnet 40 which thereupon causes wheel 29 to gear with counter R<1>. In this condition, the wheel 30 is held out of engagement with counter S<1> by a slidable sleeve 29a.
Patent GB-500290-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M19/02
Filed: 1938-06-24
Abstract: 500,290. Spray carburetters. HERSEY, J. C. June 24,1938, No. 19667/37. [Class 7 (iii)] In a carburetter in which incoming air is whirled about a main nozzle disposed longitadinally of the air passage, the nozzle has an annular orifice which directs the fuel radially outwards as well as forwardly and the fuel is supplied to the nozzle through a channel of annular section formed with a constriction of smaller cross-section than that of the outlet orifice of the nozzle. The carburetter comprises a frusto-conical body member 7, Fig. 3, having at one end a cylindrical cowl 33 provided with air inlets 36 and at the other end a further frusto - conical member 10 adapted to be secured to the induction pipe. Tongues 34, extending inwardly from the inlets 36, and adjacent gusset plates 35 give the air a whirling motion around a casing 39 carrying the fuel nozzle, the casing being supported by a fuel inlet tube 22. The fuel passes from the tube 22 to annular grooves 42, 43 within the casing 39 and the forward groove 43 communicates with an aperture 47 in a fixed tubular member 44 which separates an adjustable nozzle member J<1> from the casing 39. At its forward end, adjacent the end of the casing 39, the bore of the fixed member 44 is enlarged. forming a shoulder 65B and its mouth is flared outwardly at 50 to form one side of an annnular nozzle, the other side of which is constituted by the movable member J<1>. The member J<1> is shaped as shown in Fig. 5B, the hollowed portion 65 permitting fuel to flow from the aperture 47 past the shoulder 65B when an enlarged portion 65A of the member J<1> is displaced from the shoulder The front portion of the member J<1> conforms to the taper of the casing 39 and mouthpiece 50 of the fixed member 44 to direct fuel drawn out of the nozzle by the whirling air stream, the velocity of which is increased by a Venturi V opposite the nozzle, through triangular apertures 16, 21 in a pair of nested cores 12, 20, the inner one of which is rotatable to act as a throttle valve. The edges of the apertures are chamfered to give a Venturi effect to them. The nozzle member J<1> projects through the ends of the cones 12, 20 and its rear end is threaded at 62 to receive a knurled nut 59 which also screws into a fixed steeve 55 to adjust the member J<1> by a differential screwaction. The member J<1> is hollow to provide for slow running and starting, the fuel for which enters its bore through the rear groove 42 in the casing 39 and either of two apertures 77, 78 in the member J<1> according to whether a tubular member 72, Fig. 5A, inserted in the member J<1> is turned to set an aperture 76 in the tube 72 vertically for slow running or horizontally for starting, its level in the latter instance being below the normal fuel level. The cowling 33 may be replaced by a flared inlet member having its end open for the inlet of air.
Patent GB-615356-A (GB)
Title: Improvements in smoothing, polishing or like machines
IPC: B24B13/02
Filed: 1946-07-02
Abstract: 615,356. Grinding and polishing machines. TAYLOR, D. July 2, 1946, No. 19688. [Class 60] In a smoothing or polishing machine, the workpiece carrier or tool is mounted on a shaft or member which near one end is supported in a spherical bearing and at the other end is mounted on a crank arm or revolving member at a point radially offset from the axis thereof, means being provided for revolving the shaft or member about its own axis. The machine shown comprises a frame 1 supporting a bowl 2 secured to a cylindrical drum 4 formed with an interior conical surface 5 and an upstanding sleeve 6 carrying a collar 7 adjustable by studs encircled by springs 9. The collar and sleeve are formed with part-spherical surfaces for the reception of a spherical bearing bush 8 for a shaft 12 coupled to a crank arm 11 on the shaft of an electric motor 10, the bush being mounted between a thrust bearing 20 adjustable by a nut 23 and a thrust bearing 21 urged upwardly by a spring 22. The shaft is keyed to a wheel 13 urged upwardly by a spring 15 and carrying a rubber band 14 engaging the surface 5, the shaft being thus rotated as its axis describes a conical path. Alternatively, the shaft may carry a toothed wheel meshing with an internal gear. A work carrier 16 is detachably mounted at the top of the shaft and comprises a spherical rim 17, concentric with the bearing 8, around which lenses to be treated are mounted by adhesive. Suitably shaped grinding or polishing blocks formed with poppit holes are located by pairs of pointed screws 27 on bell-crank levers 25 pivoted at intervals around the rim of the bowl 2, the levers being acted on by springs to press the blocks against the lenses. Catches are provided to hold the levers in the inoperative position when required. The work carrier 16 may be mushroom shaped, in which case the levers are arranged to press the blocks downwardly on to workpieces mounted on its upper surface, or the surface of the carrier or a member thereon may constitute the grinding or polishing surface against which the workpieces are pressed. For grinding and polishing spherical lenses, a tool or work carrier may be mounted at the top of the shaft and the work or lap held in location thereon by means of a stationary or moving pointed rod. Grinding or polishing fluid supplied to the work is received in the bowl 2 and passes out through an opening 2a to a compartment 28 and collecting tank.
Patent GB-1502767-A (GB)
Title: Production of phenols
IPC: B01J31/22
Filed: 1974-05-06
Abstract: 1502767 Production of phenols BURMAH OIL TRADING Ltd 30 April 1975 [6 May 1974] 19806/74 Heading C2C A process for producing a phenol or a substituted phenol by decomposing a secondary aromatic hydroperoxide comprises effecting the de-composition in the presence of a catalyst comprising a compound comprising at least one metal atom or cation or at least one non-metallic cation and at least one moiety derivable from an anion of the formula wherein S is a sulphur atom; Y represents an atom of sulphur or oxygen, or a group of the formula = V-R<SP>1</SP> wherein V represents an atom of nitrogen or phosphorus and R<SP>1</SP> is a hydrogen atom or a substituted or unsubstituted hydrocarbyl group; and X is a group of the formula wherein each R represents a substituted or unsubstituted hydrocarbyl group and recovering the required phenol or substituted phenol from the decomposition product. The preferred catalysts are transition metal N-substituted mono- or dithiocarbamates and transition metal di-substituted di- or monothiophosphates.
Patent GB-447641-A (GB)
Title: Vehicle hood
IPC: B60J7/20
Filed: 1935-07-13
Abstract: 447,641. Vehicle hoods. BESSONNEAU, M., 8bis, Rue Delariviere-Lefoulon, Puteaux, Seine, France. July 13, 1935, No. 20079. Convention date, July 13, 1934. [Class 108 (i)] In vehicle hoods adapted to be folded and housed in a recess in the rear of the vehicle the hood comprises a rear portion consisting of a folding pillar and rear hoops and a front portion connected to the rear portion and adapted to be folded therewith, the front portion comprising the front cross-bar carried by bars or arms adapted to slide relatively to one another and the whole to fold against the rear folding pillar. The rear portion comprises the folding pillar 1 pivoted to the body at 4 and having pivoted thereto the rear hoops 2, 3. The front portion comprises a front crossbar 10 connected to side telescopic bars 11, 13 by short links 10a. The bar portion 13 is connected to the pillar 1 by links 19 and is also connected to the body by links 14, 15 the pivot of the links 14, 15 being adapted to slide in a slot 18 on the pillar 1. A pair of toggle links 21, 23 connects the bar portion 11 with the pillar as shown, a link 24 connecting the link, bar portion 13, and the toggle link 21. In operation of opening the hood the bar portion is drawn down the pillar 1 and the bar portions 11, 13 telescoped ultimately causing the front portion of the hood to be superposed on the rear portion and folded with it into the recess enclosed by the flap 27. Window guides 8 are connected to the pillar 1 and a hoop stick 9 is linked to the bar portion 13. A spring 5 is provided to assist raising the hood. The hood may be manipulated by electric motor 31 as shown.
Patent GB-640029-A (GB)
Title: Improvements in or relating to d.c. supply circuits of the kind including controlleda.c./d.c. converters
IPC: H02P7/26
Filed: 1947-07-28
Abstract: 640,029. Rectifying; automatic current control systems. GENERAL ELECTRIC CO., Ltd., and JUDD, S. R. July 28, 1947, No. 20294. [Classes 38 (ii) and 38 (iv)] A control system for a D.C. motor 2 has the field winding 1 fed from an A.C. source 3 through grid-controlled rectifying valves 5, 6 wherein a voltage dependent on the field current is applied to means for comparing it with a reference voltage, the means being arranged to influence the rectifying valves to reduce the difference between the compared voltages. A change in the supply voltage or in the resistance of the motor field tends to cause a change-say an increase-in the field current. The anode current of valves 5, 6, and hence the current in the primary windings 15, 16 of a current transformer 17, thus tends to increase, causing an increase in the voltage developed across resistors 19, 20 and in the direct voltage across the resistor 27. The difference between this voltage and the reference voltage obtained from a battery 29 thus' increases, causing the direct current through valve 31 to increase with a consequent decrease in current through valve 41. The current in the saturating winding 45 of the saturable reactor 46 thus alters, causing a phase shift in the network 49 and through a centre-tapped transformer 55 a shift in the phase of the grid voltages of the rectifying valves 5, 6 in a sense to correct any tendency for the current therethrough, and hence the field current, to vary. In another embodiment is described an arrangement in which the current through the valve 31 is caused to change as before but which valve is so connected that the amplitude of the grid voltages is changed to control the motor field current. The system may be used in polyphase as well as in single phase systems.
Patent GB-205591-A (GB)
Title: Improvements in covers or lap plates of panels used in connection with doors or drawes, or for other purposes, and in the method of manufacture thereof
IPC: B60J5/04
Filed: 1922-07-26
Abstract: 205,591. Austin, Sir H. July 26, 1922. Doors for passenger vehicles.-The covers or panels of automobile doors, drawers &c. are made from a metal sheet A bent to form a flange or lap a enclosing a core B of aluminium. The flange is formed by pressing or bending tools as shown in Figs. 4 and 5. The clamping tools E, G, Fig. 4, are fixed up and the tool H moves against a resiliently-held stop F. The plate when removed from the tools shown in Fig. 4 is reversed and with the core B inserted, is finished by the movable pressing tool P, N.
Patent GB-482491-A (GB)
Title: Hydraulic pressure gauge
IPC: G01L7/16
Filed: 1937-07-23
Abstract: 482,491. Piston-and-spring pressure gauges. SCOVILL MANUFACTURING CO. July 23, 1937, No. 20455. Convention date, July 25, 1936. [Class 106 (ii)] Comprises a particular construction suitable particularly for measuring oil pressures. A housing 10 open at the top has a semi-cylindrical wall 11, parallel side walls 12 and a flat wall 13 connecting the side walls. The bottom 15 has an extension 16 and from near the bottom extends a part 17 internally screw-threaded. The fiat front wall 13 is provided with a longitudinal slot 18 terminating short of the base. Mounted in the housing is a tubular member 19 reduced at the lower end to pass with a close fit through the extension 16 the extreme end being screwthreaded to engage a screw cap 21 which is tightened up against packing to secure the tube 19 in place with its shoulder against the casing bottom. The cap has an opening 23 to suit the viscosity of the liquid the pressure of which is to be measured. The tube has mounted therein a plunger 24. A rod 25 is fixed to a washer 26 seating on the end of the tube and seated on the washer is the end of a butt-ended tube 28 which is flanged at the open end. A spring 27 surrounds the tube 28 seating at the bottom in an annular member with a Z-section rim between which and the flange 30 is located the bottom of a cup member 31. An annular nut 33 screws into the open end of the housing and serves to set the spring under pressure. An indicator 36 part with the cup 31 extends through the slot 18 and moves over a scale of pressures on an indicator plate 34 secured to the housing. The tube 19 is hexagonal in section on the outside and liquid seeping past the plunger 24 can escape over the top and through the clearance to a drain pipe connected at 17.
Patent GB-1386013-A (GB)
Title: Process of producing refractory magnesia-chrome bricks and  compositions
IPC: C04B35/047
Filed: 1972-05-02
Abstract: 1386013 Refractory linings OSTERREICHISCH-AMERIKANISCHE MAGNESIT AG 2 May 1972 [7 May 1971] 20466/72 Heading ClJ [Also in Division F4] Linings in degasifying vessels and in converters for the oxygen-argon process (Jocelyn process) consist of magnesia-chrome bricks formed from a granulated, fused material which contains 10-35 wt. per cent Cr 2 O 3 , up to 4À5 wt. per cent CaO + SiO 2  and has a Cr 2 O 2  : Fe 2 O 3  ratio of at least 3À0. The material may be obtained by fusing a mixture of MgO or precursor thereof with chrome ore with or without added Cr 2 O 3  or CrO 3 , either under non-reducing or reducing conditions (in which latter case, resulting metallic iron is removed magnetically). Manganese and aluminium oxides are stated to be present as impurities. In one embodiment, up to 10 wt. per cent of finely-ground Cr 2 O 3  or CrO 3  is added to the fused material.