baber/WOPTO huggingface dataset:
Patent GB-363648-A (GB)
Title: Improvements in pyroxylin solutions and methods of making same
IPC: D01F2/26
Filed: 1930-06-19
Abstract: For the production of low-viscosity cellulose nitrate solutions, cotton or other cellulose material is subjected to the action of a mild oxidant, and after all the oxidant has been exhausted, the material is nitrated and then dissolved in a solvent such as amyl acetate to which thinners such as gasoline, benzene, or toluene may be added.  The solutions are suitable for use as pyroxylin paints. The cellulosic material may be purified or unpurified cotton, straw, or wood pulp, or cotton and wood pulp mixtures.  The oxidizing agent may be permanganate, hypochlorite, peroxide, or chromate. Preferably, the oxidizing medium is slightly alkaline, neutral, or slightly acidic.  In an example, surgical cotton is suspended in a dilute slightly alkaline solution of potassium permanganate until the re-agent is consumed. The product is washed with a dilute solution of sodium bisulphite, and then with water.  It is dried and then nitrated with a mixture of nitric and sulphuric acids.  The product is dissolved in amyl acetate giving a solution of reduced viscosity.
Patent GB-1472286-A (GB)
Title: Dispensing of portions of fibrous material
IPC: B65B1/36
Filed: 1974-04-29
Abstract: 1472286 Discrete uniform tobacco portions FOCKE and PFUHL VERPACKUNGSAUTOMATEN SONDERKONSTRUKTIONEN 29 April 1974 [5 May 1973] 18766/74 Heading A4C [Also in Division A2] Discrete identical portions of a fibrant material, e.g. tobacco, supplied continuously as a coherent fleece are obtained by constraining the fleece to flow by an air current in the direction of conveyance, packing the individual fibres of the fleece into a measuring chamber to form a strand of uniform density and thereafter severing the strand. As shown in Fig. 1 fibrous tobacco 10 is fed by conveyer 11 to funnel entry 13 where air injectors 19, 20 constrain it to pass into measuring chamber 15. Sensor 24 determines the uniformity of density and rotary cutter 18 severs the discrete portion. In an embodiment not shown a number of measuring chambers 15 rotate into the appropriate position of alignment with passage 14 successively.
Patent GB-660008-A (GB)
Title: A process for the manufacture of reaction products of polymers of conjugated dienes with sulphur dioxide
IPC: C08C19/20
Filed: 1948-07-13
Abstract: Reaction products of polymers or copolymers of conjugated dienes with sulphur dioxide are obtained by reacting solutions of the polymeric material with liquid unstable addition compounds of sulphur dioxide with organic carbonyl compounds.  Specified carbonyl compounds are acetone, methyl ethyl ketone, cyclohexanone, benzaldehyde and diacetone alcohol.  A higher reaction rate and use of less catalyst, particularly hydroperoxides, are made possible in view of the relatively high concentrations of sulphur dioxide in the adducts. The polymeric dienes are those of molecular weight above 5000 containing a plurality of unsaturated carbon-to-carbon linkages, e.g. polymers of butadiene, methyl butadiene and dimethyl butadiene, copolymers of mixtures of these or with other compounds such as isobutene, styrene, vinyl chloride, vinyl esters, acrylic acid, methacrylic acid, acrylonitrile and methacrylonitrile.  Compounds of molecular weight below 5000, particularly alkadienes and alkyl compounds, may be included in the reaction, as described in Specification 527,075.  The reaction products may be produced in the form of threads, fibres, tapes or films, by extruding a solution of the polymeric material and a hydroperoxide through an orifice of the desired shape into the liquid containing the sulphur dioxide.  The Specification as open to inspection under Sect. 91 comprises also as compounds capable of forming adducts with sulphur dioxide, alcohols, e.g. methyl alcohol; ethers, e.g. dimethyl ether, diethyl ether, anisole, dioxane and epoxy-ethane; thioethers, e.g. diethyl sulphide; and inorganic compounds, e.g. aluminium chloride, alkali and alkaline earth iodides and thiocyanates. Further, polymers which may be reacted with the sulphur dioxide include polymers and copolymers of acetylene and its derivatives or homologues, and copolymers of dienes and/or acetylenes with, in addition to the above vinyl compounds, acrolein, methyl isopropenyl ketone and vinyl ethyl ether.  This subject-matter does not appear in the Specification as accepted. Specifications 611,919, 616,276 and 659,083 are referred to.ALSO:In the reaction between rubber or polymers of dienes with sulphur dioxide (see Groups IV (a) and V), the sulphur dioxide is used in the form of liquid unstable addition compounds with organic carbonyl compounds.  Specified carbonyl compounds are acetone, methyl ethyl ketone, cyclohexanone, benzaldehyde and diacetone alcohol.  The Specification as open to inspection under Sect. 91 comprises also as compounds capable of forming adducts with sulphur dioxide, alcohols, e.g. methyl alcohol; ethers, e.g. dimethyl ether, diethyl ether, anisole, dioxane and epoxy-ethane; thioethers, e.g. diethyl sulphide; and inorganic compounds, e.g. aluminium chloride, alkali and alkaline earth iodides and thiocyanates. This subject-matter does not appear in the Specification as accepted.  Specifications 527,075, [Group IV], 611,919, 616,276 and 659,083, [Group IV (a)], are referred to.
Patent GB-856099-A (GB)
Title: Improvements in or relating to a device for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1957-01-02
Abstract: The subject-matter of this Specification is included in that of Specification 856,098 but the claims differ.
Patent GB-223645-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H01H21/02
Filed: 1923-07-23
Abstract: 223,645. McKinley, E. W., and Shea, M. A. June 23, 1923. Switches, without quick action; contacts.-A switch for selecting various groups of signal lamps and operating a tell-tale lamp simultaneously with any particular group comprises a stationary and a rotatable part, the stationary part being provided with the tell-tale lamp socket which forms a pivot for the rotatable part. The switch comprises a fixed disc 9, Figs. 2 and 3, provided with a series of spring pressed contacts 27 - - 35 with which co-operate contacts 37 - - 41, Figs. 2 and 4, carried by a pivoted disc 10 provided with a handle 42. The pivot is formed by the socket 11 of the tell-tale lamp 14. The rotatable disc 10 has recesses 44, 45, 46 in which project the disengaged contacts to hold the disc in its respective operative positions. The switch is mounted on a casing 8 which is split longitudinally to form two sections 15, 16, the sections being held together by a cap 17 fitting over a portion 18 of the casing. The cap 17 has a window 20. The tell-tale lamp 14 may be switched into series or parallel with the signal lamps by a switch 0 mounted in the casing 8. This switch comprises a pivotally mounted disc 48 carrying a plurality of spring pressed contacts 62 which co-operate with contacts 54 mounted on a fixed disc 47. The contacts on the pivoted disc 48 are connected together in pairs and the disc is operated by a handle 49.
Patent GB-530714-A (GB)
Title: Fuzes for shells or bombs
IPC: F42C1/14
Filed: 1939-06-29
Abstract: 530,714. Projectile fuzes. DUNCAN, W. O. (Aktiebolaget Tolfvan Osakeyhtio). June 29, 1939, No. 18929. [Class 9 (i)] In a percussion fuze for bombs or shells, the firing-pin 4 is mounted for spring-release action in a cup 2a at the end of the impact firing-rod 2 so that firing takes place even if the firing-rod jams on violent impact. The release of the firing-pin 4 is controlled by a sleeve 7 which, together with the firing-rod 2, is initially retained in safety position by centrifugal bolts 1 released during flight. On impact, the sleeve 7 moves forwards by' inertia to release balls 6 retaining the pin 4 which then moves under the action of a spring 5 to fire the detonator 3. The sleeve 7 acts as a shield for the pin 4 to prevent premature firing.
Patent GB-1473261-A (GB)
Title: Contraceptive device
IPC: A61F6/04
Filed: 1975-05-06
Abstract: 1473261 Contraceptives A KOPELOWICZ 6 May 1975 [7 May 1974] 18979/75 Heading A5R A contraceptive for positioning over the glans penis comprises a cap 1 provided with extendible folds 2 and having an adhesive layer 5 at its inner lower edge for securing the cap on the glans, a detachable flange 3 having a reinforcing ring 4 being provided around the edge of the cap to racimate mounding thereof on the glans and being joined to the cap by a weakened zone. Prior to use, a detachable protective covering, e.g. of cloth, completely covers the interior surface of the cap.
Patent GB-357252-A (GB)
Title: Improvements in electric lamps
IPC: H01J61/96
Filed: 1930-06-21
Abstract: 357,252. Electric incandescent lamps. LEDERER, A., Hermesville, Vienna. June 21, 1930, No. 18993. Convention date, June 25, 1929. [Class 39 (ii).] An electric lamp comprises a glass envelope with a filling of a rare gas at a pressure of 0À5- 50À0 mm. of mercury, at least one filament adapted to be heated electrically to incandescence, and at least one electrode which emits electrons when heated to a temperature lower than that of the filament, the nature and mutual distance of the electrodes, and the gaseous conditions being such that, illumination is provided simultaneously by the incandescent filament and luminous discharge from the electrode. In one form adapted for direct current working, the incandescent filament b, Fig. 1, provided with a leading-in wire a, is connected to a supporting-wire c which is connected to the other leading-in wire d, and a small tube e of nickel or the like provided with a thermionically active layer surrounds the lower end of the filament, the tube being electrically connected to the leading-in wire a. Passage of current produces a luminous discharge between the electrodes e, c. Alternatively the tube e may be omitted, and a part of the filament, preferably the part adjacent to the leading-in wire, coated with materials such as alkaline-earth oxides for the production of the luminous discharge, this portion of the wire being formed of a larger cross section to avoid over-heating. In a modification for alternating current work, two incandescent filaments f, g, Fig. 2, are carried by leading-in wires h, i and a common support k, the lower ends of the filaments being surrounded by, and connected to, short tubes l, m coated with a thermionically active layer. Preferably the electrodes l, m are provided with projecting portions of wire or strip metal which extend towards one another and protect the electrodes by taking up the electron current. Discharge within a glass tube may be effected by arranging a filament in each of two bulbs connected by a transverse tube, or a filament extending the whole length of a tube may have its ends offset at right-angles and surrounded by oxide-coated metal tubes.
Patent GB-124400-A (GB)
Title: Improvements in Tattooing Apparatus.
Inventor: CHAPMAN WALTER WILLIAM
IPC: A61M37/00
Filed: 1918-11-20
Abstract: 124,400. Chapman, W. W. Nov. 20, 1918. Marking animals and the like.-In tattooing- apparatus of the kind comprising two tong-like members pivoted together, the jaw a on one of the members being provided with cavities b to receive the blocks, these cavities are made of unsymmetrical shape to prevent the blocks from being inserted with the wrong side up, and the blocks are formed with correspondingly-shaped bases e to engage in the cavities, and with recesses g for engagement with spring catches whereby they are secured in position.
Patent GB-1116155-A (GB)
Title: Power plants for driving helicopter rotors
Inventor: ROBERTS DEREK AUBREY
IPC: B64C27/12
Filed: 1965-05-06
Abstract: 1,116,155. Starting helicopter rotors. BRISTOL SIDDELEY ENGINES Ltd. 6 May, 1966 [6 May, 1965], No. 19182/65. Headings B7G and B7W. [Also in Division F2] A helicopter rotor is spun up by an auxiliary motor 20 powered by a generator 12 driven by a main engine 1. The motor and generator may be electric, but as described, an hydraulic motor 20 and an hydraulic pump 12 are used. A combined clutch and freewheel 5 (see Division F2) connects the main engine to the rotor 8 and this is arranged to engage automatically when its driven shaft is rotating faster than its driving shaft, and then to supply a signal to stop the power supply to the auxiliary motor. As described, the main engine 1 is a gas turbine engine .started by an electric starter motor 11, and the fluid from the pump 12 driven by the engine, when the auxiliary motor 20 is no longer powered, is diverted by a valve 14 to an hydraulic starter motor 22 on .a second main engine 2, driving through a conventional freewheel 9. The auxiliary motor 20 may be used in flight as an hydraulic pump .to supply for example flying controls.
Patent GB-892375-A (GB)
Title: A method of and means for adding aluminium to liquid steel
Inventor: JOBLING ALAN VIVIAN
IPC: C21C7/00
Filed: 1959-06-05
Abstract: 892,375. Refining steel; foundry ladles. ENGLISH STEEL CORPORATION Ltd. May 17, 1960 [June 5, 1959], No. 19319/59. Classes 72 and 82(1). A method of adding aluminium or other element to steel in a ladle comprises progressively feeding a rod or wire of the material to be added at an appreciable depth below the surface of the steel. As shown, a ladle 1, to be filled with molten steel, has a hollow stopper rod 3 through which may be fed a wire 8 of aluminium from a coil 8a by means of electrically driven and remotely controlled rollers 9. When the stopper rod is raised the aluminium wire may be fed into the stream of metal issuing from a nozzle 2. Inamodification a dummy stopper rod extending nearly to the bottom of the ladle may be used, the wire be fed as the metal is poured into the ladle. The material may be in powder or granular form enclosed in a thin steel tube.
Patent GB-233208-A (GB)
Title: Improvements in guide apparatus for propellers
IPC: B63H1/28
Filed: 1924-08-15
Abstract: 233,208. Hiorth, J. Aug. 15, 1924. Screw propellers.-Guide blades A for screw propellers B are provided with replaceable parts E adjacent the propellers, an overlap joint D being completed by rivets, E, screws. or welding. The parts C are made weaker, or of lower strength material than the main part A.
Patent GB-704024-A (GB)
Title: Improvements in the positioning of fuel nozzles in internal-combustion engines provided with energy cells and with a combustion chamber arranged in the piston crown
IPC: F02B21/00
Filed: 1951-08-17
Abstract: 704,024. Air cells. LANOVA AKT.-GES. Aug. 17, 1951 [Sept. 6, 1950], No. 19449/51. Class 7(3) In a fuel-injection internal-combustion engine comprising an elongated troughshaped combustion chamber 6 located in the piston crown and extending in a direction perpendicular to the centre line of the cylinder 1, a fuel-injection nozzle 4 disposed in the cylinder head 3 with its longitudinal axis parallel to the cylinder :axis and having a laterally disposed injection orifice discharging a fuel jet in a direction substantially perpendicular to the cylinder axis and which penetrates, in the T.D.C. position of the piston, about half-way into the depth of the chamber near one end of its longitudinal axis, there is provided an energy cell 10 which is located in the head opposite the injection orifice with its longitudinal axis both lying 'in a plane through the longitudinal axes of the nozzle 4 and cylinder 1, and inclined to meet the centre of the bottom of the combustion chamber when the piston is at T.D.C. The combustion chamber 6 may be elliptical in plan view. In a modification, two small energy cells which replace the single cell in Fig. 1, are arranged so that their axes either meet at the cylinder axis or are parallel to a plane joining the nozzle and cylinder axes.
Patent GB-1460592-A (GB)
Title: Method of manufacturing a friction disc
IPC: F16D65/12
Filed: 1973-05-19
Abstract: 1460592 Resistance sinter bonding GIRLING Ltd 9 May 1974 [4 Sept 1973] 41403/73 Heading C7D [Also in Division F2] A friction disc for a vehicle disc brake comprises a metal (mild steel) backing plate 11 which carries friction pads 12 which are provided by resistance heating powder compacts of friction material at the required positions on the backing plate 11 to sinter the compacts and to bond the pads 12 to the backing plate 11. The friction material may have the following composition by weight: 60% copper, 12% tin, 2% lead, 9% zinc, 4% carbon and 13% silica. In the embodiment of Figs. 1 and 2 the friction pads 13 are of rectangular form and each friction pad 13 on one major surface of the plate 11 is aligned with a respective pad on the opposite surface. A brazing material such as copper, brass, bronze, tin, a tin/zinc alloy, zinc or nickel is plated on to plate 11 prior to the resistance heating operation which utilizes one or more pairs of electrodes contacting aligned compacts on either side of the plate 11. An initial heating and pressing-operation may first be performed to form the lower melting point alloys in the friction material - alternatively the friction material could be composed of such alloys. Figs. 3-5 (not shown) show other arrangements of the pads, those of Figs. 3 and 4 utilizing recesses in the plate. Grooves may be subsequently cut into the surfaces of the pads.
Patent GB-399773-A (GB)
Title: Improvements in or relating to pneumatic hammers and similar percussive tools
IPC: B25D17/24
Filed: 1932-09-12
Abstract: 399,773. Percussive drills. HILLS, F., 45, Airthrie Road, Goodmayes, Ilford, Essex. Sept. 12, 1932, No. 19466/33. Divided on 397,106. [Class 124.] The front end of a percussive drill is provided with a rubber buffer 14 to absorb the blows made by the piston when the steel 11 is withdrawn from the work. The buffer is completely enclosed and can be initially compressed by tightening the side bolts. In a modification the sleeve 10 is screwed on to the tool body 9, and the tool steel is formed with a collar inside the clutch 13 to prevent its withdrawal.
Patent GB-663124-A (GB)
Title: Means for mounting electric switches or other analogous fittings in wall boxes
IPC: H02B1/42
Filed: 1949-07-25
Abstract: 663,124. Switch cases. ALLDAY & SON (1922) Ltd., H. June 30, 1950. [July 25, 1949] No. 19483/49. Class 38 (v). In order that the front face of a switch f mounted in a wall box p may be against the rear face of the cover o, so as to prevent the entry of dust between a dolly-shield r and the cover, the switch is attached to the ends of arms b of a flexible anchorage, the arms a of which are secured to the box by screws c having parts e passing through the switch f for engagement by a screwdriver. The arm b is gapped at h to improve its flexibility and has tongues i through which pass internally-threaded sleeves j, the outer ends of which are expanded over the switch base and the inner ends of which have heads k held non-rotatably by flanges m on tongues i. The cover is secured by screws n which thread into the sleeves and which draw the switch outwards against the cover by virtue of the flexibility of the anchorage. The latter may be made from one or two pieces, which may be both flexible, or one flexible and one rigid. Sockets and other similar fittings may be mounted in a similar way.
Patent GB-1507180-A (GB)
Title: Pharmaceutical compositions
IPC: A61K31/47
Filed: 1975-05-08
Abstract: 1507180 Compositions containing quinoline derivatives ROUSSEL UCLAF 8 May 1975 [9 May 1974] 19488/75 Heading A5B Pharmaceutical compositions comprise 4- [0 - (2', 3'-dihydroxypropoxycarbonyl)-phenyl]- amino-8-trifluoromethylquinoline or a non- toxic acid addition salt thereof, together with a non-toxic salt of a strong acid selected from hydrochloric acid, hydrobromic acid, sulphuric acid, phosphoric acid, maleic acid, α-ketoglutaric acid, methane-sulphonic acid and ptoluene-sulphonic acid with a weak base selected from betaine or lysine.
Patent GB-358005-A (GB)
Title: Improvements in apparatus for dog racing and the like
IPC: A63K1/02
Filed: 1930-06-27
Abstract: 358,005. Dog - racing apparatus. McLEOD, C. E., 32, Claverton Street, London. June 27, 1930, No. 19544. [Class 132 (i).] Apparatus for dog-racing in which the lure is lifted over hurdles comprises a carriage 1, Fig. 1, at the side of the track carrying a support 2 to which a counterpoised arm 3 carrying the lure 6 is pivoted at 18, the pivotal point being above the normal running level of the lure. The arm carries a projection 13 bearing against a flexible guide 11, Figs. 1 and 3, against which a lever 12 may be turned to deflect it at the hurdling points and thus lift the lure into the raised position shown in full lines in Fig. 1. A screen 10 is arranged between the course and the driving mechanism. The arm may also be raised either for hurdling or out of reach of the dogs at any point in the course, by a cord 2, Fig. 1, actuated by an electric motor 15 supplied with current from a rail 46, 47. The arm may be telescopic and projected by compressed air. For this purpose as soon as the arm passes the starting trap a lever on the arm support engages a cam at the side of the track to open a cock to admit compressed air to a cylinder on the piston-rod of which the lure is mounted. The arm may be hinged at 20, Fig. 2, and turned into position 26 so as to pass the starting box and is held by a catch 25 which is tripped by a lever engaging a cam when the spring 21 turns the arm 3 into its running position, the action being checked by a dashpot 22.