baber/WOPTO huggingface dataset:
Patent GB-1380679-A (GB)
Title: Processing circuit
IPC: F02P17/04
Filed: 1973-04-30
Abstract: 1380679 Transistor pulse circuits SIEMENS AG 30 April 1973 [28 April 1972] 20515/73 Heading H3T A circuit providing an output pulse in dependance on an input pulse from an occurrence sensing means, e.g. a transducer coil S, comprises: a store C1 for storing the peak value of a first pulse from the sensing means S; a threshold device T3 operable when the leading edge of a subsequent pulse from the sensing means S reaches a threshold level dependent on the value stored in C1; and threshold changing means R3, T5, operative when the device T3 operates, to change the threshold level so that the threshold device will reset when the trailing edge of said subsequent pulse passes the new threshold level. A first sinusoidal pulse from transducer coil S charges capacitor C1 to its peak value to determine the potential at one end of a potential divider R1, R2, the potential at the other end being determined by an average signal derived from L.P. filter R4, C2. The threshold voltage of T3 is determined by the potential at the junction of R1, R2 and when the leading edge of the next pulse passes through this value, transistors T3, T4 turn on to initiate an output pulse. Transistor T5 also turns on to connect R3 in parallel with R2 so that the threshold of T3 falls to a new value at a rate determined by the discharge time of capacitor C3. When the trailing edge of the input pulse falls below the new value the transistors T3, T4, T5 switch off to terminate the pulse. The output pulse train thus comprises pulses having variable trailing edges dependent on the width, and hence on the rate, of the pulses produced by coil S. The circuit may be used in a dead centre indicator for an engine in which the pulses are produced by an armature moving past the coil S. In such a system, a speed dependent error occurs which can be compensated for if the variable trailing edges are used to indicate the dead centre.
Patent GB-1298186-A (GB)
Title: PROCESS FOR THE CATALYTIC MIXED OLIGOMERIZATION OF 1,3-DIOLEFINS WITH alpha-UNSATURATED ORGANIC COMPOUNDS
IPC: C07C2/04
Filed: 1971-04-19
Abstract: 1298186 Co-oligomerization of diolefins and ethylene STUDIENGESELLSCHAFT KOHLE mbH 19 April 1971 [7 Feb 1970] 20529/71 Heading C5E [Also in Division C2] Mixed oligomers of 1,3-diolefines or substituted 1,3-diolefines with ethylene are prepared by reacting the monomers in the presence of a cycloolefine-cobalt complex as a catalyst. Butadiene, isoprene, piperylene, octatriene and methyl heptatriene may be used and the reaction may be in an inert solvent or in excess diene. Complex cyclooctenyl cobalt cyclooctadiene and cyclooctenyl cobalt cyclooctadiene-ethylene, propene or butene may be used as the catalyst. Examples 10 and 11 describe the reaction of butadiene with ethylene to give hexadienes.
Patent GB-227390-A (GB)
Title: Improvements in and relating to railway chairs for vignole rails
IPC: E01B9/66
Filed: 1924-08-30
Abstract: 227,390. Sautreau, E. Aug. 30, 1924. Chairs with adjustable jaws; chair wedges; chairs 1 have lugs 3 which receive arched jaws 5 secured by screws passing through holes 7 in the jaws, the Vignole rail being pressed on to wedges 6. These wedges are secured to the sleepers by studs and washers, and short wedges of differing thickness may be used instead of single long ones. A wedge is used on each side of the rail and holds the rail clear of the chair base, the wedge being tapered to suit the inclination of the rail.
Patent GB-1206613-A (GB)
Title: Warning device for use with seat belts
Inventor: PRICKETT ALFRED DONALD
IPC: B60R22/48
Filed: 1967-05-03
Abstract: 1,206,613. Safety belts. JOSEPH LUCAS (INDUSTRIES) Ltd. 21 March, 1968 [3 May, 1967], No. 20560/67. Heading A3V. [Also in Division G2] A warning device for use with seat belts in road vehicles includes two optical cables 14, 15 associated with the two parts of the seat belts 11, 12 respectively and having ends which are arranged to be aligned when the seat belt is properly fastened, a light source 16 for transmitting light into one of the optical cables and warning means associated with the other optical cable for giving the required warning. This warning means is preferably by means of a lens 17, at one end of the cable 15, which is situated in the dashboard 18. The ends of the cable are preferably provided with lenses for directing light from one to the other.
Patent GB-687216-A (GB)
Title: Improvements in electric fuse holders
IPC: H01H85/56
Filed: 1950-08-19
Abstract: 687,216. Fusible cut-outs. CRABTREE & CO., Ltd., J. A., and HILL, W. E. July 23, 1951 [Aug. 19, 1950], No. 20599/50. Class 38 (i). In a cartridge-fuse holder comprising a moulded insulating body a in which are secured blade contacts b<SP>1</SP>, the inner ends of the contacts are bent to U-form to embrace the end caps of the fuse, and the shorter arm b<SP>3</SP> of each contact carries a spring plunger d which resiliently engages an end cap and retains it within the U. An opening in the body enables the fuse to be projected out of the contacts past the plungers d,
Patent GB-873699-A (GB)
Title: Improvements in and relating to hardeners for aminoplast resins
IPC: C08K9/04
Filed: 1958-06-27
Abstract: A hardenable composition comprises an aminoplast, e.g. a urea- or melamine-formaldehyde resin, and a hardening agent which does not melt or decompose below 100 DEG C. and which is in the form of particles, preferably of a size more than 0,5 mm., enclosed in a layer of an acid amide having a melting point of at least 50 DEG C. as protective substance without hardening action.  The amides also have a plasticizing action on the aminoplasts. Hardening agents specified are sodium chloroacetate, oxalic and adipic acids and ammonium chloride which is the preferred one and the coating thereof is described in the examples (see Group III). Acid amides specified are the amides of stearic, palmitric, caproic, myristic, acrylic and methacrylic acids.ALSO:In coating ammonium chloride, for use as a hardener for aminoplasts, pulverulent ammonium chloride is suspended at an elevated temperature in a solution of an acid amide having a melting point of at least 50 DEG C. in a solvent in which ammonium chloride is substantially insoluble and the mixture is then cooled during which the acid amide is deposited on the particles of ammonium chloride.  The examples describe the above method of coating ammonium chloride with palmitic, stearic, caproic and acrylic acid amides Myristic and methacrylic acid amides are also specified.  Solvents specified are petrol, benzene, methyl alcohol and trichlorethylene.
Patent GB-534015-A (GB)
Title: Improvements in or relating to coking and cracking oils
IPC: C10G9/36
Filed: 1939-07-15
Abstract: 534,015. Cracking and coking oils. STANDARD OIL CO. (INDIANA). July 15, 1939, No. 20656. Convention date, July 16, 1938. [Class 32] In a multi-stage cracking and coking process in which the crude stock is coked without prior cracking, the vapours formed in the cracking are fractionated into fractions of low and high boiling range, the high boiling fraction is cracked and the products obtained recycled to mix with the vapours from the coking zone, and the low boiling fraction is cracked or reformed at high temperatures in a second cracking zone. The crude may be coked directly by passage through a heated coil 31 into a coking drum 33 from which products pass to a fractionating tower 35 and thence to a second tower 54 where the distillate is separated into a light fraction collected in a receiver 63 and a heavier fraction collected at the bottom of the tower 54. This latter fraction is cracked in the first cracking coil 59 and the products re-cycled to a separator 40 at the bottom of the tower 35 so that the vapours from the coking and first cracking operations are intermingled and fractionated together. The light fraction collected in receiver 63 is fed through line 79 as stock for the second cracking stage comprising cracking coil 66, separator 70, and fractionating tower 73, the stock being fed to the tower 73 so that it is mixed with the products of the second cracking stage before being fed through line 77 to the coil 66. In the preferred form shown when the crude stock contains gasoline and like constituents of low boiling range the crude is pre-heated in a coil 13 prior or after passage to a tower 18 where the lighter constituents are removed and used in part as stock for the second cracking coil 66 while the residual constituents are fed through line 46 to the tower 35 so that they are pre-heated and partly vapourised by the vapours from the coking zone before being passed through lines 48, 49, 52 to that zone. The residues from the second separator 70 are returned to the first separator 40.
Patent GB-1036068-A (GB)
Title: Improvements in and relating to methods of producing a water-soluble mass suitable for the manufacture of cores for wax models
IPC: B22C7/02
Filed: 1963-05-24
Abstract: Mixtures of water-soluble inorganic salts and water-soluble polyglycols are used to form cores for wax models in a casting process.  The salts may be chlorides, carbonates, phosphates, or nitrates.  In the examples various mixtures are made of sodium, potassium or ammonium chloride with 16.6-35% by volume of a polyethylene glycol wax of molecular weight 6,000-7,500 or 5,000-7,500.  In general 15-35% by volume of a polyglycol of molecular weight of the order of 103 and 104 is preferred.
Patent GB-742202-A (GB)
Title: Improvements in or relating to the desulphurisation and desiliconising of pig iron
IPC: C21C1/02
Filed: 1953-07-27
Abstract: A process for reducing the silicon and sulphur contents of pig iron consists in treating the molten metal with a slag containing substances having a desulphurising action and metallic oxides capable of oxidising the silicon of the pig iron, the quantity and initial composition of the slag being such that the silica content of the slag does not become high enough to destroy the desulphurising properties, and allowing the slag to react with the metal.  In a known desulphurising slag consisting of lime, silica, and fluorspar, some or all of the silica may be replaced by iron and/or manganese oxides and this slag used to reduce the silicon of the metal to the desired extent; the slag now has the required desulphurising properties and reacts with the metal to remove p  sulphur.  The operation may be performed in a rotating furnace which allows of thorough mixing of slag and metal.  The slag may be added in the liquid condition.  Some reducing substance should be present in the metal during desulphurising and such condition may be achieved by leaving 0,2 per cent Si in the metal.  The Si could be replaced by Al, Ti, Ca, or Mg or compounds thereof.
Patent GB-212825-A (GB)
Title: Improvements in spraying devices
IPC: B05B1/26
Filed: 1923-08-16
Abstract: 212,825. Babcock & Wilcox, Ltd., and Weston, S. F. Aug. 16, 1923. Jet nozzles; annular sheets; jets with regulable orifices.-A device particularly for spraying ash and clinker hoppers with water, of the kind comprising a tubular casing c adapted to be connected to a water-supply pipe a and having a longitudinally grooved plunger d adjustably held therein to control the size of a passage x between the end of the casing c and the enlarged head g of the plunger, has a conical recess i formed in the head g and communicating with the water space through tangential passages j, so that the device, in addition to giving an adjustable annular sheet spray, produces a secondary whirling spray of smaller radius. The passages j may be blocked when only one spray is desired. A filter tube k surrounded by wine gauze l may be fitted to the inlet end of the tube c.
Patent GB-517071-A (GB)
Title: Improvements in heddle frames
IPC: D03C9/06
Filed: 1938-07-14
Abstract: 517,071. Loom healds DATHE, P. July 14, 1938, No. 20885. [Class 142 (i)] The heddles 7 are arranged in groups A, B alternatively carried on two pairs of top and bottom bars 5. Between the adjacent groups of heddles on each bar 5 brackets 6 are arranged connecting the bar and the top or bottom rail 1 of the heddle frame. The bars 5 may be side by side as shown in Figs. 2 and 7, or superposed as shown in Fig. 4a. Instead of being connected by brackets 6 to the heddle frame members 1 the inner bars 5 may be connected to the outer bars 5 by members. 10, Fig. 4a, and the outer bars 5 connected by brackets 6 to the rails 1, or the bars 5 may be connected to middle plates 11, Fig. 7, secured to the rails 1. As shown in Fig. 11, the bars 5 are provided with slotted eyes 16 to engage studs 12 on the plate 11, a blade spring 14 perforated to receive the head of one stud 12 locking the bar in position.
Patent GB-1026031-A (GB)
Title: Stabilized chlorocyclopentadiene derivative and pesticidal composition containing the same
IPC: C07C17/42
Filed: 1964-05-20
Abstract: Bis(pentachloro-2,4-cyclopentadien - 1 - yl) is light-stabilized by addition of diphenylamine and (or) phenothiazine.ALSO:Pesticidal compositions contain bis(pentachloro-2,4-cyclopentadien-1-yl) which has been light-stabilized by addition of diphenylamine and/or phenothiazine.  The compositions may be in the form of liquids, wettable powders or dusts and may contain conventional carriers, dispersing agents, surface-active agents, sticking agents blending agents, solvents and colorants, instances of some of which are given. Specific compositions are described.
Patent GB-1163673-A (GB)
Title: Applicator Device for Liquids.
Inventor: JONES REGINALD
IPC: B05C1/08
Filed: 1967-05-05
Abstract: 1,163,673. Inking apparatus. STABILAG ENG. Ltd. 26 April, 1968 [5 May, 1967], No. 20938/67. Heading B6C. [Also in Division B2] An applicator device for liquids such as printing ink comprises a housing, a roller with a portion of its curved surface protruding from the housing and another portion in a chamber extending in the housing from an inlet to an outlet, and a pair of positive displacement pumps respectively for supplying liquid to and removing it from the chamber. A pair of bodies 2, 3, secured together by bolts 4, are formed in their abutting faces with circular recesses providing a housing 8 for an applicator wheel 7 mounted on a driving shaft 16 journalled in the bodies 2, 3. Part of wheel 7 projects outwardly from housing 8 and part projects inwardly into a semi-annular chamber 9 provided by an enlargement of housing 8. A groove 11 in body 3 connects one end of chamber 9 with a hole 13 through body 3, and a groove 12 in body 2 connects the other end of chamber 9 with a hole 14 through body 2. Circular recesses in bodies 2, 3 provide a chamber 20 communicating with chamber 8 and housing a circular disc 19 mounted eccentrically on a spindle 21, rotation of which thereby serves to vary the distance between disc 19 and wheel 7. Grooves 29 in the bodies 2, 3 provide a passage interconnecting chamber 20 and groove 11. A pump 15, mounted on shaft 16, draws liquid from a line and delivers it via a spring-loaded non-return valve and via hole 13 and groove 11 to chamber 9. Some of the liquid is carried by wheel 8 for application to the work, the coating thickness being determined by the angular setting of disc 19. Excess liquid is drawn from chamber 9, via groove 12 and hole 14, by a pump 18 mounted on shaft 16, and is returned via a spring-loaded non-return valve to the line. At the re-entrant side of wheel 7, housing 8 provides a converging gap 30 to prevent sudden increase of liquid pressure thereat. It is stated that the pair of pumps may be provided by three gear-wheels of which the central wheel co-operates with each of the outer wheels to define two gear pumps. A plurality of applicators may be used in parallel.
Patent GB-294606-A (GB)
Title: Improvements in antenna
IPC: H01Q1/14
Filed: 1928-07-19
Abstract: 294,606. Trico Products Corporation, (Assignees of Cameron, R.). July 27, 1927, [Convention date]. Aerials.-A compact, demountable aerial comprises a vertical post 1 on which is threaded a supporting-member 2, Fig. 3, for four lateral arms 5. Insulated wire is threaded through notches formed in the sides of the post 1 and arms 5 so as to form two separate open-ended windings located in two planes mutually at right-angles. Each winding starts from a notch near the member 2 and is anchored in an outer notch on one of the arms 5, the two free ends being connected to a common down-lead 11. The vertical height of each coil is less than the lateral stretch.
Patent GB-945358-A (GB)
Title: Improvements in and relating to electric motors
Inventor: FLOYD GERALD WILLIAM
IPC: H02K7/12
Filed: 1960-06-15
Abstract: 945,358. Electric motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 2, 1961 [June 15, 1960], No. 21038/60. Heading H2A. [Also in Division F2] An electric motor has at each end of its rotor an axially facing annular cam each engaging a cam on the shaft so that limited axial movement of the rotor takes place when the rotor rotates relative to the stator. Fig. 1 shows an induction motor having a rotor support 6 rotatably mounted on its shaft. Cam surfaces 7 (Fig. 3) are formed at each end of the support and these engage cams 8 pinned to the shaft so that when over-run of the shaft occurs when the motor is switched off the rotor moves downwardly of the drawing. This brings a friction surface 11 mounted on the end 10 of the rotor support into contact with a stationary disc 12 to brake the rotary movement. A spring may be provided to urge the rotor in the direction which brings the friction surfaces into contact (Fig. 2, not shown). Specification 903,197 is referred to.
Patent GB-531370-A (GB)
Title: Improvements in hair curlers
IPC: A45D6/04
Filed: 1939-07-20
Abstract: 531,370. Hair curling devices. HOYSTED, E. A. July 20, 1939, No. 21058. [Class 131] A hair curler comprising a body portion 4 with a resilient clamp 8 is provided with an angled tubular extension 5 within which one leg 6 of a hair pin 2 is inserted, the angled nature of the extension 5 bending the leg 6 and holding the hair pin in position by friction. After the lock is wound the curler is withdrawn leaving the curled lock gripped by the hair pin. Fig. 6 shows a modification in which the body portion 4<SP>1</SP> is cylindrical and is provided with the angled tubular extension 10.
Patent GB-453114-A (GB)
Title: Improvements relating to lubricants and to lubrication
IPC: C10M137/10
Filed: 1934-12-29
Abstract: Lubricating-compositions especially for use under high pressures consist of a lubricating oil base and a polyhalogen derivative of benzene or homologue of benzene added in an amount less than 20 per cent of the total composition.  Compounds specified are, o-dichlorbenzene, 1 . 2 . 4 . trichlorbenzene, chlorinated toluene, xylene or cymene.  Compounds containing more than 55 per cent of halogen are preferred.  Specifications 425,324, [Group XXXVI], and 430,045 are referred to.
Patent GB-456024-A (GB)
Title: Improvements in and relating to syphons or appliances for use therewith
IPC: B67D1/04
Filed: 1935-07-25
Abstract: 456,024. Siphon-bottles. GOULD, H., T., 87, Broomwood Road, and GOULD, Ltd., H., Wayford Street, both in Battersea, London. July 25, 1935. No. 21142. Addition to 433,986. [Class 14 (i)] A device as described in the parent Specificationfor throttling the flow of liquid through the nozzle of a siphon bottle and for imparting a whirling motion to the discharged liquid, is mounted in the well 7 of the siphon tube 8. A plug-member 30, provided with a notched seating 32 and whirling orifices 35, 36 as described in the parent Specification, is a screw or press fit in the well 7. The throttling member 10 for co-operating with the seat 32 is held from the seat by a spring 12, the tension of which is adjusted by a nut 11. In modifications, the member 10 is formed as a disc valve or a hollow ball valve. Where a ball valve is used, the upper end of the siphon tube is notched, or the ball is held towards the seat 32 by a spring, so that the ball cannot close the siphon tube during filling.
Patent GB-516204-A (GB)
Title: Improvements in or connected with bee-hives
IPC: A01K47/06
Filed: 1938-07-16
Abstract: 516,204. Beehives. BENNET, J. R. July 16, 1938, No. 21154. [Class 5 (ii)] The alighting-board C is pivoted at 4 to control the entrance 9 to the hive. An aperture 10 leading to a queen and drone escape E, and a detachable shade D may be provided. According to the Provisional Specification, the minimum opening of the entrance may be determined by distance pieces.
Patent GB-222112-A (GB)
Title: Improvements in thermometers
IPC: G01K5/08
Filed: 1924-09-08
Abstract: 222,112. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Sept. 20, 1923, [Convention date]. Drawings to Specification. Thermometers.-In a gas or liquid expansion thermometer the bulb is made of chrome-iron and the capillary tube is made either wholly of glass or partly of glass and partly of chrome-iron, the metallic part of the thermometer being sealed to the glass part. The chromium content is preferably so adjusted that the coefficient of expansion of the bulb is equal to that of the glass.
Patent GB-499804-A (GB)
Title: Improvements in or relating to spectacles
IPC: G02C5/14
Filed: 1937-07-30
Abstract: 499,804. Spectacles. MARYON, S. W. H., and FLEMING, Ltd., J. & R. July 30, 1937, No. 21225. [Class 97 (i)] A spectacle frame comprises end pieces 14 extending laterally from the lenses and having sweepingly curved outer surfaces, in combination with bowed side pieces 19, the curve of each side piece blending with that of the corresponding end piece to form a continuous curve, the combination providing a distance 21 between the temples which is substantially greater than the distance 20 between the end pieces. The invention is particularly applicable to frames in which the end pieces are above the horizontal centre line of the lenses as shown in Fig. 1. As shown in Fig. 9, the end piece 14 curves from substantial tangency to the mounting at the front thereof to a junction 34 with the side piece 19 at a point on the curve substantially less than 90‹ from the front of the mounting, so that the side piece by continuing the curve of the end piece provides increased width of frame over the bony structure bounding the eye sockets. Each side piece 19 consists of a bar-like portion 22 having a hinge connection at one end and an ear piece 24 at the other. The part adjacent the hinge is of heavy rectangular cross-section and the side tapers rearwardly, the part adjacent the ear piece 24 being of circular cross-section.
Patent GB-1131168-A (GB)
Title: Inhibited or-nor gate
IPC: F15C1/10
Filed: 1967-05-08
Abstract: 1,131,168. OR-NOR gate. CORNING GLASS WORKS. 8 May, 1967 [16 May, 1966], No. 21325/67. Heading G4P. An OR-NOR gate formed from a minostable wall-attachment fluidic device is characterized in that it has an additional input 46, Fig. 2, which inhibits switching of the device even though pressure is applied to one or more of the OR-inputs 42, 44.
Patent GB-239844-A (GB)
Title: Improvements in process for finishing panels for radio sets
IPC: B41M1/30
Filed: 1925-08-26
Abstract: 239,844. Hennegan, P. M. Sept. 13, 1924, [Convention date]. Receiving sets, construction of. - The insulating panel 2 of a wireless set is finished by printing lettering, scales &c. on it with a sticky substance preferably by offset and applying a powdered substance to the printed matter and drying. The panel is then coated with a transparent varnish or lacquer. The printing block is preferably photographically produced from a drawing and either a photo-litho or an engraved lead plate, zinc etching or a gelatin plate may be used. An impression from the block or plate is made on a rubber blanket and an offset print made on the panel. Reference has been directed by the Comptroller to Specifications 17378/12 and 106,286, [both in Class 93, Ornamenting].