baber/WOPTO huggingface dataset:
Patent GB-788658-A (GB)
Title: An electric discharge lamp arrangement
IPC: H01J61/54
Filed: 1954-07-28
Abstract: 788,658. Control systems for electric discharge apparatus. QUARZLAMPEN GES. July 28, 1954 [July 28, 1953], No. 22051/54. Class 38 (4). [Also in Group XL (a)] A high-pressure xenon discharge lamp 1 has a tubular extension containing a rod 4 carrying a movable electrode 2, the rod being surrounded by a metal tube and provided with a small block 6 of ferromagnetic material movable by a magnet 7. The magnet 7 is movable on a screwed spindle 9 which is rotated by an electric motor 10 in circuit with the switch 16 in the lamp circuit to move the electrode 2 into and out of contact with the stationary electrode 3. A contactor 11 has an operating coil serially connected in the operational circuit of the discharge lamp and change-over contacts 12 inserted in the energizing circuit of the motor, the arrangement being such that when the contactor is operated by the discharge current, the energizing circuit is connected for a directicn of the motor's rotation in which the magnet 7 and electrode 2 are moved away from the stationary electrode 3, whilst when the contactor releases, the energizing circuit of the motor is changed over for movement of the magnet 7 and electrode 2 towards the stationary electrode 3. At each end position of the magnet 7 on the spindle 9 a switch 13, 14 is arranged which is opened by arms fixed to the magnet and which is connected into the motor circuit by a change-over switch 15 actuated by the contactor 11 in such manner that, if the magnet 7 moves towards one of the switches 13, 14, this switch is inserted into the motor circuit. A clutch can be inserted between the spindle 9 and the motor 10 to avoid over-running.
Patent GB-1256395-A (GB)
Title: Electrical surface heating
Inventor: GAISER KURT
IPC: B64D15/12
Filed: 1969-04-30
Abstract: 1,256,395. Laminated heating elements. K. GAISER, E. KRAFT, D. GOTZ, and H. HAUSER. 30 April, 1969 [11 May, 1968], No. 22063/69. Heading B5N. [Also in Division H5] A surface heating resistor comprises a layer 3 of graphite in a cold setting, synthetic casting resin, sandwiched between two insulating layers 2, 4, e.g. of synthetic resin, and provided with suitable current supply terminals 7, Fig. 2 (not shown). The layer 3 may be 50-70% polyester resin and 50-30% graphite, and this resin may be 35-45% weakly reactive polyester resin and 10-20% medium reactive polyester resin and up to 5% monomeric reactive ester resin. The mixture also contains conventional accelerators for cold curing purposes, and other additions, such as 1À5-1À7% methylethyl ketone peroxide and paraffin wax. In an alternative, the layer 3 is 40-70% polyurethane resin and 60-30% graphite. Epoxy resins, alkyd resins and phenol resins are further alternatives. The heating layers are applied by coating, painting or spraying or the heating elements are preformed plates or films, possibly strengthened with glass fibres, or are cast in situ. An earthed protective layer 5 and an outer mechanically protective layer 6 are provided. One layer can be provided as a heat storage layer, and the layers 5, 6 preferably have high heat conductivity. Applications to space heating and deicing are mentioned, particularly floors, walls, ceilings, partitions, roads, bridges, terraces, pathways and aircraft surfaces. When the heating layer is a film, it may be calendered and then cut to the necessary dimensions. It can be supplied in long webs or cut pieces. The heating element can be operated direct from the mains supply or via a transformer. Terminals 7 may be perforated strips embedded in the heating layer 3. Alternatively, metal strips line the edges of layer 3 and a plurality of heating elements are interconnected in series or parallel using contact springs between these metal strips. Additional metal strips may be embedded in layer 3 for optional connection to a current supply, e.g. to improve the current distribution or to allow for acceleration of hardening of the heating layer.
Patent GB-728128-A (GB)
Title: Dispenser for adhesive tape and the like
IPC: B65H35/00
Filed: 1951-09-20
Abstract: 728,128. Dispensers for adhesive tape. HALL, D. M. Sept. 22, 1952 [Sept. 20, 1951], No. 22074/51. Class 73. In a hand dispenser for adhesive tape, the tape is guided by rollers 6, 7, Fig. 1 from a roller 1 and through a slot 11a Fig. 4 in an end piece of a detachable frame 8 which is formed with a serrated edge 11b by which the tape is torn off, a wetting device for the tape being provided either in the form of a roller dipping into a reservoir or, as shown, by a container 3 having a nozzle 9 stopped by a sponge pad 10 against which the tape is pressed by the spring- loaded roller 7. A thumb operated brake 5 is provided on the handle 4 for clamping the roller 1 when the tape is required to be torn.
Patent GB-638822-A (GB)
Title: A valve control device for fuel supply systems
IPC: F02C7/26
Filed: 1946-07-24
Abstract: 638,822. Liquid-fuel burners. BENDIX AVIATION CORPORATION. July 24, 1946, No. 22104. Convention date, July 25, 1945. [Class 75 (i)] [Also in Groups XXVI and XXIX] A valve device 35b, Fig. 1, associated with a hydraulic accumulator 35a in the fuel system of a gas turbine 10, for ensuring adequate pressure at the fuel jets 18 for atomizing the fuel when starting, is arranged to permit the accumulator to be charged from a fuel pump 22 driven by the turbine when the latter is rotated by a starter motor 31 during the initial starting period, and to allow the discharge of the accumulator through on outlet 37 to the jets upon the building up of pressure in a conduit 19 consequent upon the opening of a fuel throttle valve 24. The pump 22 draws its supply from a reservoir 20 and discharges through a check valve 23. A valve 70, opened by a spring 74 and closed by fuel pressure in the conduit 19, drains the latter when the turbine is shut down. The valve device has a bore 47, Fig. 2, closed at its ends by covers 48, 49 and housing a piston 50 loaded by a spring 65. The covers 48, 49 are connected with the inlet and outlet pipes 36, 37 and also have inwardly extending bosses 61, 53 extending into the piston and providing seats for spring-loaded lift valves 56, 57. The valve 57 is also adapted to co-act with a seat 63 in the piston. The left-hand end of the piston is subjected to atmospheric pressure through an aperture 68 whilst the right-hand end is exposed to the pressure in the conduit 19 through a passage 67. When starting the turbine the throttle valve 24 is closed and the pump pressure acts through the pipe 36 on the valve 56 which opens and permits the flow of fuel into the piston, past the valve seat 63 and through passages 66, 44, 43 to the interior of the accumulator consisting of a bladder 39 loaded by compressed air. When the throttle valve 24 is opened pressure in the conduit 19 acting on the right-hand end of the piston 50 moves the latter to the left, first interrupting the fuel flow from the pump to the accumulator by moving the seat 63 into engagement with the valve 57, and then moving the latter away from its seat on the boss 53 to allow the accumulator to discharge to the outlet 37. The piston is returned to its original position on reduction of pressure in the conduit 19 when the throttle valve 24 is closed for shutting down the turbine.
Patent GB-1499550-A (GB)
Title: Apparatus and method for monitoring erosive wear of gas turbine blades
IPC: F01D21/00
Filed: 1975-05-22
Abstract: 1499550 Monitoring wear of turbine blades BROWN BOVERI-SULZER TURBOMASCHINEN AG 22 May 1975 [28 June 1974] 22105/75 Headings G1N and G1S Apparatus for monitoring the wear of gas turbine blades comprises a rod of similar material subjected to the same combustion gases, whose dimensions are continually checked. In one embodiment the electrical resistance of the test rod is measured. In another, the test rod is a hollow tube supplied with a pressure difference between the inside and outside. When erosion causes a leak to appear the pressure difference is reduced and an alarm is energized. A number of test rods of different cross-sectional area may be used to increase the sensitivity.
Patent GB-286980-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/82
Filed: 1927-08-23
Abstract: 286,980. Sharp, A., (Soc. GÚnÚrale MÚtallurgique de Hoboken). Aug. 23, 1927. Catalytic processes.-Sulphuric acid is prepared from sulphurous acid gases by oxidizing them by a contact process, removing the sulphur trioxide, and treating the remaining gases in towers or chambers packed with broken flint &c. and washed with nitrosylsulphuric acid preferably according to the processes described in Specifications 231,853, 244,764, 249,914 or 267,885, [all in Class 1 (ii), Inorganic compounds other than &c.]. The sulphur trioxide produced by the contact process may be absorbed by the sulphuric acid produced in the second stage.
Patent GB-1145320-A (GB)
Title: Process for the preparation of bacterial cultures for vaccines against pertussis and
Inventor: STEJSKAL VLADIMIR
IPC: C12N1/20
Filed: 1967-05-12
Abstract: 1,145,320. Pertussis and parapertussis vaccines. USTAV SER A OCKOVACICH LATEK, OBOROVY PODNIK. 12 May, 1967 [20 May, 1966], No. 22163/67. Heading A5B [Also in Division C6] Bacterial cultures of Bordetella pertussis and # parapertussis are cultivated by a continuous process wherein the bacteria are cultivated in a liquid nutrient medium in which they are allowed to multiply at an exponential rate whilst maintaining the specific growth rate (Á) of the culture at a factor of between 2.8 and 5 times per hour, and periodically removing a quantity of the culture (e.g. 70-85% each 10-20 hours) and replacing it with fresh nutrient medium so as to maintain the culture in the exponential growth phase. Starting with culture withdrawn from the second growth cycle, the portions of culture removed may be worked up into vaccines in conventional manner.
Patent GB-481793-A (GB)
Title: Improvements in or relating to machines for harvesting root crops
IPC: A01D25/04
Filed: 1936-09-14
Abstract: 481,793. Harvesting root crops. RYDER, W. A., ARTHUR, W. H., and PYLE, A. Sept. 14, 1936, No. 22275. [Class 6 (iii)] The soil at the sides of the rows of the crop is loosened by coulters 89 adapted to be raised for transport by linkage 91 and part of the tops is cut off by an adjustable rotating knife 48. The roots are then lifted by a share 17 adjustably secured to an auxiliary frame 15 carried by links 85 on bars 10a of the main frame. The leaves of the loosened roots are gripped between jaws 23 carried on a rotary gripping wheel 22 and actuated by spring pressed stem members 28 engaging a fixed cam 29 these stem members being connected to the jaws through lazy tong devices 26. The wheel 22, which is also carried on the auxiliary frame 15, carries the roots to a positioning conveyer 33 which is mounted in a frame 31 that is preferably pivoted at one end and resiliently supported at the other so that by the shoulders of the roots engaging spring plates 41 the frame is moved to a position in which the desired amount of top projects from each root as it is carried to the topping cutter 30 by gripping members on the conveyer. A tailing cutter may also be fitted. The topped roots fall into a container 44 which is fitted with a deflecting plate so that the roots are directed to the desired side, beaters being provided to throw the roots upwards thus cleaning them. The auxiliary frame, which may be raised by a rack bar 86 connected to one of the links 85 and adapted to be meshed with a pinion on the land wheel shaft, is locked in its lowered position by a spring bolt that may be freed to release the lock by lifting a pawl 77 by a finger lever 81 and pulling back a hand lever 16a. As the auxiliary frame is raised a pinion transmitting motion to the gripping wheel 22 and the conveyer 33 is lifted out of mesh with another pinion on a shaft in the main frame.
Patent GB-460924-A (GB)
Title: Improvements in terry fabrics
IPC: D06P5/00
Filed: 1935-08-09
Abstract: 460,924. Pile fabrics. HOLT. W. Aug. 9, 1935, No. 22475. [Class 142 (iv)] In a figured Terry fabric the pile warp is of oner or more plain colours, the figuring being effected by dyeing or printing the ground warp. The weft may be plain or coloured. Reference has been directed by the Comptroller to U.S.A. Specification 1,847,807.
Patent GB-709135-A (GB)
Title: Improvements in or relating to television transmitting apparatus
Inventor: LAWRENCE NATHANIEL QUENTIN
IPC: H01J31/26
Filed: 1951-09-26
Abstract: 709,135. Television. PYE, Ltd. Sept. 25, 1952 [Sept. 26, 1951], No. 22504/51. Class 40 (3) In a film television transmitter a film frame and a luminous scanning raster are alternately imaged on the photo-cathode of an image iconoscope type picture-signal generating tube. As shown, light images of film frames from an intermittent motion film projector 17 are directed on to the photo-cathode 2 of the tube 1 by reflection of a mirror 26 which is rotated at such speed (by means of arm 27 and motor 29) in relation to the film pull-through mechanism and to the frame rate of the luminous raster produced on screen 9 of cathode-ray tube 8 that the mirror is in position to reflect the film images on the photo-cathode during the pull-through periods of the raster on screen 9 and moves out of this position to allow this raster to impinge on the photo-cathode during the full-through period of the film mechanism. The photo-electrons liberated by cathode 2 due to the action of the film frame light images are focused on to the target electrode 3 by the focusing coil 7 and the resulting charge image is then discharged by the action of the photo-electrons liberated by cathode 2 during the periods when the luminous raster impinges thereon. The discharge current develops a video voltage across resistor 33 which is supplied to the transmission equipment 34. The electron beam in the tube 8 may be blanked during frame retrace periods by means of blanking pulses from a generator 32. Specification 656,069 is referred to.
Patent GB-1435171-A (GB)
Title: Keyboards
IPC: H01H13/12
Filed: 1973-05-11
Abstract: 1435171 Retractive switches SUMLOCK ANITA ELECTRONICS Ltd 9 May 1974 [11 May 1973] 22538/73 Heading H1N A keyboard comprises a plurality of pushbuttons 5 located in a cover-plate 4, each pushbutton 5 co-operating with a strip of electrically conductive material secured by a tag 12 to a base-plate 8 and having a resilient part 11a with a free end normally extending towards the pushbutton but capable of being moved on depression of the pushbutton towards a fixed contact 9, Fig. 4 (not shown), on base-plate 8. Each moving contact consists of a plate 11 of gold plated nickel silver formed with a helical cut and deformed in an open spiral to form the resilient raised part 11a. The fixed contacts 9 are made of gold-plated phosphor bronze wire. Each pushbutton 5 is provided with antirotation flanges. The keyboard is used in an electronic calculating machine with batteries 6 and an integrated circuit board 7 which includes the calculating circuitry.
Patent GB-281035-A (GB)
Title: Improvements relating to the recovery of soda from its solutions
IPC: C01D7/00
Filed: 1926-09-13
Abstract: 281,035. Wallace, W. M., and Mac- Gregor, J. Sept. 13, 1926. Solids, treating with liquids. - Spent soda liquors such as are obtained in the treatment of esparto, rags, straw, grass, bamboo &c. are calcined in a furnace and discharged upon a travelling grate as described in Specification 217,468, [Class 1 (ii), Inorganic compounds, other than &c.]. The calcined product is next passed to a dissolver b having means for breaking up large pieces of the material and the solution is conveyed to a tank d from which it is passed to causticizing pots through a pipe d<2> when of sufficient strength. As the liquor can be continuously circulated between the tank d and the dissolver b, the latter can be of small dimensions.
Patent GB-837724-A (GB)
Title: Work feeding attachment for sewing machines
IPC: D05B15/02
Filed: 1958-07-15
Abstract: 837,724. Sewing machines. SINGER MANUFACTURING CO. July 15, 1958 [July 15, 1957], No. 22595/58. Class 112 A sewing machine is fitted with an attachment adapted to impart top feed in a direction transverse to that of the machine's normal feed. As shown, the attachment 30 enables a machine having the normal direction of feed across a cylinder bed 12, to be used for feeding work up or off the bed for the production of tubular articles, the normal feed dog being immobilized by a cover plate 25. The attachment, which is of conventional form, has a work-feeding foot 40 and a workjogging foot 39 operated by a lever 35 having a bifurcated end which is normally engaged directly with a screw 17 securing a needle 16 to the needle bar 13. The attachment is modified by removing the member adapted to be secured directly to a seat 19 on the presser bar 18 by a screw 20, and by providing in its place an upstanding flange 31 secured by a pair of screws 32 to one end of an adapted bracket 33 formed at its other end with a socket 34 which is clamped to the seat 19 by the screw 20. The attachment is thus secured to the sewing machine in a position at right angles to the conventional arrangement. An adapter bracket 36 is also secured by a screw 37 to the needle clamp 15, and a pin 38 which extends from bracket 36 at right angles to the needle clamp screw 17 engages the bifurcated end of lever 35 for actuating the latter. The machine is arranged for zig-zag stitching and the combined effect of the jogging of the work and the needle at right angles to each other accordingly provides for additional ornamental stitching patterns. The needle opening 41 in the work jogging foot 39 is enlarged to accommodate both jogging movements.
Patent GB-257743-A (GB)
Title: An improved closure, and method of sealing same for cans, "tins", and like receptacles
IPC: B65D43/02
Filed: 1925-09-10
Abstract: 257,743. Saunders, A., Saunders, V., and Saunders, R. Sept. 10, 1925. Lever lids.- A tin or other container having a top flange 2 comprising a depending wall 5 inturned to form a bed 3, the free edge of which constitutes the mouth of the container, is closed by a ' lever lid ' of double tier form of which the upper tier includes an horizontal flange 9 adapted to co-operate with the bed 3 to form a seal and the lower tier fits in the mouth of the container and is secured therein by expounding its base 11 under the bed to form a second seal. A packing ring 12 may be disposed between the flange 9 and bed 3.
Patent GB-465816-A (GB)
Title: Improvements relating to the wrapping of articles, such for example as chocolates or sweetmeats
IPC: B65D65/00
Filed: 1935-08-12
Abstract: 465,816. Packages; wrappers. L A I M A, Ltd. Aug. 12, 1935, No. 22665. Void. Convention date, April 8. [Classes 94 (i) and 94 (ii)] A wrapper for sweetrneats &c. comprises a square blank having on one side of a diagonal a representation of an animal's head with the ears extending to the ends of the diagonal, as shown in Fig. 1. The article, which may be enclosed in an inner wrapper, is placed in the upper corner of the wrapper, which is wrapped round it up to or adjacent to the diagonal, and the corners are folded and rolled to simulate ears as shown in Fig. 2, the portion bearing the animal's head hanging down unfolded.
Patent GB-139122-A (GB)
Title: Improvements in or relating to the mounting of prints and the like
IPC: B44F1/02
Filed: 1919-09-16
Abstract: 139,122. Whitehead, Ltd., W. F., and Smith, D. N. Fison-. Sept. 16, 1919. Pictures, photographs, and the like, mounting. - A print &c., faced with a film of gelatine, is mounted directly upon a stiff backing of millboard &c. and is finished by binding strips of paper or fabric around the edges. A film of gelatine is placed on a layer of varnish on a flat surface, and a moistened print is pressed face downwards upon the gelatine. When the gelatine is dry, it adheres to the print, which is then secured by adhesive to the backing, and the strips of paper &c. are fixed around the edges. A hanging-ring may be engaged by a loop of tape secured at the top edge under a sheet of paper gummed to the back, and a light calendar may be suspended from the lower edge by strips of tape similarly secured.
Patent GB-387397-A (GB)
Title: Method of producing styrol
IPC: C07C1/30
Filed: 1931-08-12
Abstract: Styrol is prepared by heating a halogenethylbenzene with a small amount of a salt of an organic base.  The salt of an organic base may be a salt of pyridine, dibenzylamine, diethylamine or aniline with hydrochloric, sulphuric, or phosphoric acid, or of pyridine with acetic acid, or a salt of piperidine or of a pyridine or quinoline alkaloid.  Instead of adding a salt of an organic base as such, a small amount of free organic base may be added, whereby a salt of the base is formed in situ.  Ten examples are given in which ethylbenzene is chlorinated in the dark at 100-110 DEG  C., the product is freed from unchanged hydrocarbon by distillation, and the residue is refluxed at 155-175 DEG  C., after addition of a salt of an organic base selected from those named above; the reaction mixture is then separated from the salt by decantation and steam-distilled to recover styrol; in examples 3 and 6, the steam-distillate is fractionated, and the fraction boiling below 165 DEG  C. is heated in a sealed tube at 180 DEG  C. to produce a resin; in example 9, the fraction of the steam-distillate boiling below 165 DEG  C. is heated under reflux at 100 DEG  C. in the presence of water to produce a resin; in example 10, the residue from the steam distillation and the residue from the fractionation of the steam-distillate are passed together through a cracking tube at 600-700 DEG  to produce styrol and ethylbenzene.
Patent GB-812268-A (GB)
Title: A novel unsaturated hydrocarbon and a process for the manufacture thereof
IPC: C07C11/28
Filed: 1956-12-28
Abstract: The invention comprises 3,8-dimethyl-decatriene - (3,5,7) - diyne - (1,9) and the preparation thereof by treating a triphenyl-[3-methyl-penten - (2) - yn - (4) - yl - (1)] phosphonium halide, e.g. the bromide, with phenyl lithium in the presence of a solvent or diluent in the cold and heating the the resulting mixture containing triphenyl - [3 - methyl - penten - (2) - yn - (4) - ylidene - (1)] - phosphine with 3 - methyl-penten - (2) - yn - (4) - al - (I).  It is preferred to carry out the initial step in the above process in the presence of either at ca. 0 DEG  C. and in an inert atmosphere.  One detailed example is given.  Triphenyl - [3 - methyl - penten - (2) - yn - (4)-yl - (1)] - phosphonium halide is prepared by condensing triphenylphosphine with 1-halogeno - 3 - methyl - penten - (2) - yne - (4) in glacial acetic acid.  It is preferable to use 1-bromo - 3 - methyl - penten - (2) - yne - (4) in the process. Specification 812,269 is referred to.
Patent GB-1502054-A (GB)
Title: Casing and casing liners for centrifugal pumps of the volute type
IPC: F04D7/04
Filed: 1976-06-02
Abstract: 1502054 Centrifugal pumps WARMAN INTERNATIONAL Ltd 2 June 1976 [13 June 1975] 22802/76 Heading F1C The volute region of a centrifugal slurry pump casing comprises two circular segments of differing radii 12 and 15, Fig.3, centred at 14 and 17 respectively and joined tangentially at 13, the first segment commencing at outwater 9 and the second segment leading tangentially at 10 into a discharge branch 11, the pump casing having a cast metal or rubber (23, 24) Fig.5, liner the shape of which corresponds to the shape of the inner surface of the casing. The inner radius e.g. 25 of the casing and liner is the same for all axial cross-sections around the periphery.