baber/WOPTO huggingface dataset:
Patent GB-1127828-A (GB)
Title: Fan thrust reverser for jet propulsion plant
Inventor: WARD PETER ARTHUR
IPC: F02K1/70
Filed: 1966-06-29
Abstract: 1,127,828. Turbofan thrust reversal. ROLLSROYCE Ltd. 28 June, 1967 [29 June, 1966; 4 Feb., 1967], Nos. 29274/66 and 5477/67. Heading B7G. A thrust reverser for a ducted fan jet propulsion engine comprises a double-walled casing 16 having several groups of radially aligned inner and outer thrust reverser flaps 26, 25, Fig. 2, pivotally mounted (e.g. at 27 and 31) near their downstream ends, there being means (e.g. a jack 35) to move the flaps between an inoperative position where they provide part of the inner and outer walls 37, 36 of the casing 16, and an operative position where their upstream ends lie radially inwardly, or outwardly, of the inner, or outer, wall, shown in broken lines, Fig. 2. The jacks 35, 58 may either be each connected directly to a group of flaps, or be all connected to a single annular ring 69, Fig. 7, which is in turn connected to the flaps. In Fig. 2 the outer flap 25 is shown pivoted to the inner flap 25 at 31 and has a further pin (33), Fig. 3 (not shown), sliding in a cam slot (34) in the thickness of the casing 16. In Fig. 7 the inner flap 63 is shown with a rubber tip 76 to provide a better seal on the compressor casing 53. In Fig. 8, the inner flap 63a is shown jointed at 94, the outer flap being replaced by four small ones 64a . . . 64d which are moved by a second jack, not shown. At the lowest part of the thrust reverser, there may be vanes (93), Fig. 10 (not shown), in the casing 16 between the flaps to deflect the reversed jet efflux sideways to prevent ground erosion. The engine may be carried on a pylon under a wing, Fig. 5 (not shown).
Patent GB-854276-A (GB)
Title: Apparatus for working materials by means of a beam of charged particles
IPC: H01J37/304
Filed: 1959-08-27
Abstract: 854,276. Photo-electric control systems. ZEISS STIFTUNG, C., [trading as ZEISS, C. [Firm of]]. Aug. 27, 1959 [Aug. 30, 1958 (2); Sept. 6, 1958], No. 29275/59. Class 40(3). [Also in Groups XX and XL(a)] In apparatus for boring holes in a workpiece 19 with a beam of charged particles, light from a source 34 is directed downwards on to the workpiece and the working region is viewed by the reflected light transmitted through the objective lens 28 and deflected by the mirror 30 to a micro-projection device at 27, a thermocouple or photo-electric cell in the path of the projected image switching off the beam of charged particles when the workpiece is bored through and no radiation appears.
Patent GB-901879-A (GB)
Title: Process for recovering adipic acid from the reaction products of the air-oxidation of cyclohexane
IPC: C07C51/42
Filed: 1960-08-24
Abstract: Adipic acid and adipic acid esters in the form of the acid are recovered from the reaction product of the oxidation of cyclohexane into mainly cyclohexanone and cyclohexanol with a molecular oxygen-containing gas, by bringing the product into intimate contact with water, thus hydrolysing the adipic acid esters to adipic acid, separating the aqueous extract containing adipic acid from the reaction product, subjecting this extract to evaporation to reduce the water content, dissolving the evaporated extract in an organic solvent capable of forming a low-boiling azeotrope with water, subjecting the resulting mixture to azeotropic distillation to reduce the water content thereof, precipitating the adipic acid from the residue of the distillation by lowering the temperature and separating the precipitated adipic acid in crystalline form from the mother liquor.  Preferably the aqueous aqueous extraction of the cyclohexane oxidation product is carried out at a temperature in the range 30-200 DEG C.  The treatment with water may be carried out as a multistage counter-current continuous extraction.  Suitable organic solvents are, for example, 2-nitropropane, 1 - nitropropane, nitroethane, nitromethane, chloroform and carbon tetrachloride and mixtures thereof.
Patent GB-327743-A (GB)
Title: Lubricating mechanism for rotary valves
IPC: F01L7/02
Filed: 1928-10-11
Abstract: 327,743. Moravec, J. E. Oct. 11, 1928. Channels in valves.-In a valve for internal-combustion engines comprising a number of sections mounted on a rotary shaft, lubrication of the bearing surfaces is effected by oil forced through the shaft and valve sections in a staggered path which does not conflict with the fuel inlets. Each valve section 12 has reduced extensions 13, formed with projections 14 and recesses 15 engaging with corresponding parts on the adjacent extensions, and the reduced extensions rotate in bearings 16 formed with inner bushes 21. The extensions 13 have axial channels 28 and diametral holes 34 adjacent the end faces of the valve sections co-operating with annular channels 33 formed by cups 30 independently mounted on the extensions 13. The annular channels are continuously in register with longitudinal channels 35 in the valve sections, spaced apart from the fuel inlets 7. On reaching a valve section oil is deflected radially outwards, and after passage through a longitudinal channel 35 is directed inwardly to a central channel 28 from which it reaches the bearing surfaces by radial holes 22<c>. The circuit of the oil is completed by axial passages in stub shafts 22 communicating with oil chambers 37, and inlet and outlet pipes 43, 44 through which the oil is forced by a pump 40 from a sump 41.
Patent GB-1425987-A (GB)
Title: Diode laser pumping
IPC: H01S5/042
Filed: 1973-06-20
Abstract: 1425987 Lasers BOFORS AB 20 June 1973 [3 July 1972] 29361/73 Heading H1C [Also in Division H3] A pulse source for a diode laser 1 comprises a transformer 13 magnetically charged periodically from a D.C. supply 9, 11 through a primary winding 25 and a transistor 15, a condenser 3 which is charged by discharge of the transformer when transistor 15 is opened, and a thyristor 5 which discharges the condenser 3 through the diode when activated, the transistor 15 becoming re-operative to commence recharging of the transformer at the same time as the condenser discharges through the diode. Control of the transistor 15 is effected by the combination of a transformer feedback winding 27 and a diode 19, the feedback winding also supplying an activating pulse to the thyristor 5 by way of a C.R. circuit 31, 33 and a PNPN diode 35 at the same time as transistor 15 becomes operative. Charging of condenser 3 is restricted to the deenergized phase of the transformer operation by a rectifier 23. The laser diode pulses may be monitored by a resistive circuit 7, and the pumping current and pulse frequency controlled by varying an emitter resistor 18. An avalanche transistor may replace thyristor 5.
Patent GB-1509266-A (GB)
Title: Coin operated lock
IPC: G07F17/12
Filed: 1975-07-14
Abstract: 1509266 Coin operated lock AMERICAN LOCKER CO Inc 14 July 1975 [5 March 1975] 29435/75 Heading G4V A coin operated lock having a vertically inclined coin shoot 36 in which coins are releasably retained within the shoot by engagement of a lowermost properly sized coin with an intercepting finger 60 in an edge to edge relationship with a next lower coin and against a support surface 148 which is formed with a recess 153 opposite to a coin sensing finger 82, the proper location of the intercepting finger relative to the coin sensing finger allows coin blockage of the sensing finger only when the proper number and denomination of coins are deposited in the coin shoot. The lock is suitable as a "caretaker" type locker and is mounted on face plate 18. There is a custodian lock 20 and a patron lock 22. The patron lock has a cylindrical housing, not shown, rigidly fixed to plate 18. Rotatably mounted thereon is barrel 42 which is drivingly connected to an extension 43 of a lock cylinder rotatably mounted within the cylindrical housing. Barrel 42 has a disc 44 having an arm which is attached to lock bolt 40 so that operation of the lock cylinder causes movement of the lock bolt. A rod 74 is also driven to operate a counter 28. A spring biased pawl 50 engages a disc 46 on barrel 42 except when released by linkage connected to sensing finger 82. A patron lock release lever 24 has a disc engageable with a recess in disc 44 to stop movement thereof until the lever has been operated. A lever 62 is pivotably mounted on shoot 36 and carries intercepting finger 60. A cam follower portion 68 thereof engages cam surface 72 on a bracket 70 carried by barrel 42. Rotation of the barrel allows for forward movement of lever 62 so that finger 60 moves to a coin release position. To cater for different numbers of coins and different denominations two interchangeable levers 62 and two spacer bars 106 are provided. Recess 153 operates when incorrect coinage is entered into the shoot and ensures that such coinage moves away from the sensing lever 82 and cannot block it. Lever 82 is spring biased toward bracket 84 and only allows pawl 50 to be moved to an inoperative position if it engages a coin when the lock cylinder is rotated.
Patent GB-819042-A (GB)
Title: Improvements relating to liquid fuel burners
Inventor: PAYNE NORMAN HORACE
IPC: F23D11/38
Filed: 1956-09-27
Abstract: 819,042. Supplying liquid fuel to burners. DOWTY FUEL SYSTEMS Ltd. Sept. 27, 1957 [Sept. 27, 1956], No. 29564/56. Class 75(1) A liquid spray nozzle, especially of the spill type, is provided with a jacket surrounding the nozzle having a substantially unrestricted opening into the combustion chamber and a restricted opening from a pressurized fuel conduit, so that liquid fuel may enter the jacket and there evaporate, preventing the nozzle temperature rising above the boiling point of the fuel at the pressure in the combustion chamber. In the form shown, fuel passes by a pipe 1 via tangential orifices 4 to a swirl chamber 3 and spray orifice 5, spill returning by way of an annular spill orifice 6, a tube 9, a chamber 11 and a pipe 2 inside and concentric with pipe 1. The chamber 11 has a restricted orifice 13 at the rear whereby fuel escapes into a shroud 12 enclosing the nozzle and having an unrestricted opening 14 surrounding the spray orifice 5. The supply and return pipes 1, 2 may be enclosed in a thermally insulating jacket 15. The nozzle is stated to be particularly useful for burners in which the fuel is injected against the flow of combustion air.
Patent GB-960428-A (GB)
Title: Improvements in belt conveyors
IPC: B65G43/00
Filed: 1960-08-26
Abstract: 960,428. Endless belt conveyers. GOODMAN MANUFACTURING CO. Aug. 26, 1960 [Aug. 28, 1959], No. 29590/60. Heading B8A. In an endless belt conveyer wherein the belt is supported by idler roller assemblies carried by one or more cables extending longitudinally of the conveyer, a plurality of spaced transverse members, which are arched over the loadcarrying run of the belt, are carried by the cable or cables to prevent the belt from leaving the conveyer completely due to wind gusts. As shown, troughing idler roller assemblies 15 for supporting the load-carrying run of the belt are suspended between cables 13, 14, and rigid tubular bars 40, which also act as spreaders, are connected to the cables by U-shaped plates 44, 45. The return rollers 33 are suspended from the cables 13, 14 by chains 34 as described in co-pending Specification 941,201. In a modification (not shown), the spreader bars are connected directly to the ends of the troughing idler roller assemblies and are suspended from one or more cables not located at the ends of the assemblies.
Patent GB-929081-A (GB)
Title: Improvements in spindles for mounting printing rollers
IPC: F16D1/091
Filed: 1960-08-26
Abstract: 929,081. Hollow rollers. R. KAUSCHKA. Aug. 26, 1960 [Aug. 26, 1959], No. 29597/60. Class 34 (1). [Also in Group XXIV] A hollow printing roller is mounted on a spindle having at least two ducts opening into the peripheral surface of the spindle at spaced points along its length, which ducts communicate with a bore or bores, respectively, in the spindle whereby fluid under pressure can be introduced through the ducts to the surface of the spindle and having a conically-shaped portion on each side of each duct opening which diverges away from the opening, the spindle including a pair of expanding rings mounted thereon between each pair of oppositely directed conical portions associated with each duct opening, the rings being axially displaceable on the spindle and having internal conical surfaces of the same conicity as the conical portions of the spindle and external surfaces corresponding in shape to the internal surface of the printing roller and sealing means between each pair of expanding rings for defining a sealed chamber in the annular space between the spindle and the roller so that the fluid under pressure introduced thereinto through the associated duct will serve to move the rings apart to clamp the spindle and roller against relative movement. A printing roller 15 is clamped on to a spindle 1 to prevent relative movement therebetween by passing a fluid under pressure through an axial bore 2 of the spindle and a radial duct 3 which opens on to the peripheral surface of the spindle. Clamping means between the spindle and roller on both sides of the duct comprise expanding rings 5, 6 having an internal conical surface corresponding in conicity to the cones 7, 8 on the spindle, of which the cone 7 is removable to enable a bush 9, slidable rings 10, 11, sealing rings 12, 13 as well as the rings 5, 6 to be mounted on the spindle. The fluid under pressure passes through the duet into a chamber 14 bounded by the bush 9 and sealing rings 12, 13 which are thereby displaced from the duct 3 entraining the rings 10, 11 and thus displacing the rings 5, 6 in the same direction to lock the roller 15 with respect to the spindle. At least two such clamping means are spaced along the length of the spindle which may be served by a single or separate bores.
Patent GB-961567-A (GB)
Title: Improvements in or relating to the making of shaped structures, particularly films and fibres from polypropylene
IPC: D01F6/04
Filed: 1961-08-16
Abstract: 961,567. Polypropylene films and fibres. HERCULES POWDER CO. Aug. 16, 1961 [Aug. 17, 1960], No. 29627/61. Heading B5B. Films and fibres are produced by extruding a solution of a stereoregular polypropylene that is at least 95% insoluble in n-heptane at 21‹ C., and removing the solvent by evaporation from the extruded fibres or film by means of a current of heated air or other gas, the solution being obtained by heating to at least 130‹ C. a slurry resulting from the polymerization of polypropylene according to known methods at a temperature below 90‹ C. with a transition stereospecific metal catalyst in an inert organic solvent in which the polymer is soluble to the extent of at least 15% by weight at temperatures of 130‹ C. and above and essentially insoluble at temperatures below 90‹ C., from which slurry the catalyst has been removed or in which slurry it has been inactivated, and to which slurry or solution a stabilizer has been added, the solvent after separation from the filaments or film being recycled for use in further polymerization. The solvent may be a saturated aliphatic hydrocarbon or a mixture of such hydrocarbons boiling in the range of 100‹ to 210‹ C. The catalyst may be a combination of a compound of a metal of Group IV B , V B , VI B  or VIII of the Periodic Table and an organometallic compound of a metal of Group I A , IIA, IIB or IIIB of the Periodic Table, e.g. a combination of titanium trichloride and an alkylaluminium compound selected from aluminium trialkyl and a dialkylaluminium halide. The catalyst may be removed by adding a watersoluble aliphatic alcohol to the polymer slurry and then washing the slurry with an aqueous liquid. Reference has been directed by the Comptroller to Specification 851,611.
Patent GB-652587-A (GB)
Title: Improvements in or relating to crystal contact devices and to methods of manufacturethereof
IPC: H01L29/00
Filed: 1948-11-15
Abstract: 652,587. Crystal contact devices. GENERAL ELECTRIC CO., Ltd., JAMES, E. G., and LINDELL, A. O. E. Nov. 15, 1948, No. 29644. [Class 40 (iv)] In a crystal contact device of the type having two or more metallic members with substantially point contact, the metallic members are in the form of parallel wires and the crystalline element contacts the peripheral surface of the wires at points along their length. In Fig. 1, two wires 2 are fixed by a cement 3 to a block 1 of insulating material such as ceramic or synthetic resin, and a germanium crystal 4 mounted on a support 5 is arranged to be in contact with the wires. The support 5 may be resiliently mounted, the whole device being housed in a protective container. The surface of the crystal 4 may be conical, hemi-spherical, or planar in shape, or may be in the form of a knife edge. The wires 2, which may be of very small diameter and closely spaced, may be placed on the block 1 by a winding process in which a wire is wound around the insulating block, the surplus turns and wire portions then being removed to leave the two wires which have been secured to the block by cement. The two wires may be laid in a groove cut in the insulating block, or may be wound round a part-cylindrically shaped block.
Patent GB-464988-A (GB)
Title: Brushes and brooms with rubber loops and method for the production of the same
IPC: A23L27/10
Filed: 1935-10-28
Abstract: 464,988. Brushes. FRIZ, T. Oct. 28, 1935, Nos. 29715, 29716, and 29717. Convention dates, Oct. 27, 1934, Nov. 20, 1934, and Feb. 20, 1935. [Class 19] Rubber brushes, particularly for cleaning fabrics, consist of loops 3, 6, Fig. 1, of soft rubber placed so closely together that the edges between the loops do not touch the fabric during brushing. The loops are produced, preferably, by incisions in a rectangular rubber strip. The loops 3, Fig. 2, are attached by wooden bars 4 to a stock 1, while loops 6 are attached to a metal strip 7 which is nailed in a groove 2. The other end 8 of the rubber loop is stuck over the end 5 so that the nail heads are covered. In a modification, Fig. 3, rubber loops 11 of more or less circular formation are secured by metal strips 12, 13 with bristles 14 arranged in grooves 15 at each side. In another modification, Fig. 4, for cleaning glasses, series of loops 21, 22, 23 are arranged ring-fashion round a stepped circular stock. The rings are constructed as in Fig. 5, with curved retaining members 33. A number of such rings may be clamped on a cylindrical or conical handle. In a final modification, Fig. 8, loops 35 may be attached to a concavo-convex handle 36.
Patent GB-730226-A (GB)
Title: Improvements in or relating to the manufacture of viscose and of regenerated cellulose fibres therefrom
IPC: D01F2/06
Filed: 1952-11-25
Abstract: In the manufacture of viscose, alkali cellulose is shredded at below 30 DEG  C. for not over 2 hours and is immediately xanthated with over 45 per cent (based on cellulose) of carbon bisulphite added at below 20 DEG  C., the temperature of the mixture being then maintained at not below 25 DEG  C. until xanthation is completed. The xanthate is dissolved in water to produce a viscose containing not less than 1.5 per cent of cellulose and not more than 2.5 mol. of sodium hydroxide per anhydroglucose unit.  The viscose thus produced is spun without having been aged into a spinning bath below 30 DEG C. containing less than 30 and 50 g./L. of sulphuric acid and Glauber's salt respectively, and the extruded filaments are stretched in the bath during their coagulation by means of a stepped or conical godet and stationary thread guides both submerged in the bath, the filaments being caused to lap successively larger diameter parts of the godet.  In the example wood pulp of D.P. 780 is steeped in 17.5 per cent caustic soda solution at 20 DEG  C. for 2 hours, pressed to 2.75 times the initial weight of the pulp, and shredded at 15 DEG  C. for one hour.  Carbon bisulphide, in a proportion of 50 per cent, based on the weight of the pulp, is added gradually to the pulp at below 15 DEG  C., the temperature of the mixture being maintained below 20 DEG  C. for up to 2.5 hours after the addition of the carbon bisulphide and being thereafter raised to 25 DEG  C. for one hour. The cellulose xanthate thus obtained is dissolved in water to produce a viscose containing 6 per cent of cellulose and 2.82 per cent of caustic soda and having a falling ball viscosity of 520 seconds.  The viscose, without ageing, is spun out into a bath containing 10.3 g./L. sulphuric acid at 25 DEG  C. and the filaments are stretched by means of a four-step godet having step diameters in the ratio 1 : 2 : 2.5 : 3.
Patent GB-280250-A (GB)
IPC: B60Q1/124
Filed: 1927-11-08
Abstract: 280,250. Nestler, F. C. Nov. 8, 1926, [Convention date]. Road-traffic signals.-In means for directing road-traffic signals a supporting spindle a is connected by an arm f to a double-acting piston h in a cylinder i mounted to allow of axial movement limited by resilient washers n<3> in a ring n<1> carried by arms n clamped by bolts n<2> to a bearing b. Two oppositely-coiled helical locking springs j<1>, j<2> are provided on the spindle a, the outer ends of the springs engaging notches m<5> in the bearing and the inner ends engaging respectively elongated slots m<3>, m<4> in levers k<1>, k<2> mounted loosely on the spindle and having a pin- and-slot connection k<3> with the cylinder i. The ends of the cylinder i communicate through pipes s<3> with a valve r<2> having a piston r<1>, controlled by a Bowden wire r<3> and a spring r<4>, ports s<2> open to the atmosphere, and a conduits' communicating with a suction conduit. When the valve r' is operated to produce a suction in the cylinder i on one side of the piston h, air is admitted to the other side of the piston and moves the cylinder to actuate the levers k<1>, k<2> so as to loosen one of the springs j<1>, j<2> and allow the spindle to be rotated by the piston h, the other spring being loosened automatically during the rotation. At the end of the movement the cylinder i and levers k, k<2> are returned by the washers n<3> and actuate the springs to lock the spindle. Specification 263,920, [Class 80 (iii), Linkwork &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the spindle may be rotated by the cylinder, the piston being only slightly movable for releasing the springs, the piston may be controlled by gaseous fluid under pressure, the valve may comprise two independent pistons operated against the action of springs by push-buttons and the spindle may be controlled by electrical means. A device is described also in which a number of pairs of spring-pressed balls y, Fig. 5 (Cancelled) are arranged in recesses x<1> in a member x between the spindle bearing b and recesses, having oppositely-inclined cam faces u<1>, u<2>, in a member u connected to the spindle a. The member x is provided with a finger z, which projects through an opening z<1> in the member u and is connected as by cables z<2> with an operating handle. This subject-matter does not appear in the Specification as accepted.
Patent GB-209531-A (GB)
Title: Improvements relating to contact spring sets such as are used in telephone systems
IPC: H01H13/64
Filed: 1922-11-02
Abstract: 209,531. Siemens Bros. & Co., Ltd., and Goodwin, W. E. Nov. 2, 1922. Keyboard switches; relays.-Contact spring- sets of the make-before -break type are provided with a mechanical lost-motion device to ensure an interval between make and break. In the keycontrolled set shown in Fig. 2, spring 3 carries a pin 5 which passes through apertures in spring 2 and a tongue 10 and bears against spring 6. Upon throwing of the key, spring 2 engages the flexible tongue 10 which is attached to spring 6, and upon further movement tongue 10 comes against spring 6 and forces it away from pin 5. In the set shown in Fig. 6, upon lepression of the key the cam 29 first makes contact between springs 24, 26 and then breaks contact between springs 25, 27. Fig. 8 shows a set similar to that of Fig. 2, but controlled by a relay, the armature 33 of which is pivoted on a knife edge 34 of a yoke 35.