baber/WOPTO huggingface dataset:
Patent GB-703558-A (GB)
Title: Improvements in or relating to closure devices for containers
Inventor: KNIGHT JOHN THOMAS
IPC: B65D45/32
Filed: 1951-02-12
Abstract: 703,558. Container closures. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 12, 1952 [Feb. 12, 1951], No. 3399/51. Class 125 (3) In a closure for a metal container 1 having a beaded rim 2 and lid 4 a rubber sealing ring 3 of square or rectangular section, hollowed internally to the external diameter of the bead, is placed around the rim 2 and embraced by the shaped edge of the lid 4 and a U-sectioned band 5 in two parts hinged by a pin joint is applied to press the lid into engagement with the sealing ring and retain it in position.
Patent GB-862196-A (GB)
Title: Manufacture of petroleum gas
Inventor: TOL CORNELIS
IPC: C10G9/00
Filed: 1959-01-30
Abstract: 862,196. Coking petroleum. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Jan. 30, 1959, No. 3418/59. Class 55 (2). A feed of petroleum oil distillate is subjected to a first cracking treatment at a temperature between 500‹ and 700‹ C. and at a pressure between 10 and 135 kg./cm.<SP>2</SP>, the product from the first cracking treatment being separated. by distillation to give a normally gaseous fraction, and a liquid fraction having a final boiling-point below 235‹ C., at least 50% of the liquid fraction being subjected to a second cracking treatment under the above conditions of temperature and pressure. The liquid fraction may be recycled such that the second cracking treatment occurs in the first cracking zone or the second cracking treatment may be effected in a separate cracking zone. Preferably the feed to the first cracking zone is entirely fresh feed and the feed to the second cracking zone is entirely of the liquid fraction from the first cracking zone. Any residue produced in the first cracking treatment may be separated from the other products before subjecting them to further treatment. Alternatively the gaseous products or gaseous and residual products from the first cracking zone may be combined with the corresponding gaseous products, or gaseous and residual products from the second cracking zone. Coking may be carried out on the residual products in any conventional manner, e.g. hydrocarbonaceous material is passed at a pressure of 7-35 atmospheres through a pipe still in which it is heated at 350-525‹ C. The hydrocarbonaceous material is then passed to a coking chamber where it is subjected to further cracking to form coke. Coking may also be carried out in a fluidized bed.
Patent GB-839309-A (GB)
Title: Production of conjugated diolefins
Inventor: WIRTH MAX MARIN
IPC: C07C2/86
Filed: 1958-02-03
Abstract: Conjugated diolefines are prepared by the process of the parent Specification which involves reaction in the vapour phase between a mono-olefine having up to six carbon atoms in the molecule and formaldehyde or acetaldehyde over a silica-alumina catalyst wherein the catalyst is pretreated with steam, e.g. at 500-850 DEG  C., and atmospheric-500 pounds per square inch pressure, for 0.1-100 hours. If desired, this treatment may also be effected after reactivation of the catalyst by heating in air.
Patent GB-833340-A (GB)
Title: Apparatus for indicating that the level of material in a storage space is at a greater than a predetermined height
Inventor: LINDENBERG WALDEMAR
IPC: G01F23/24
Filed: 1956-02-03
Abstract: 833,340. Indicating height of material in a container. PETERS A.G., C. Feb. 3, 1956, No. 3499/56. Class 37. An apparatus for giving an indication of the height of material stored in a container 2 comprises a tuned plate, tuned grid oscillator using a pentode valve 28. One end of the grid coil 26 is connected to earth and its other end in addition to being connected to the grid is connected to a probe 6 which is mounted within the container by means of insulating sleeves 8 and struts 10. A plate 12 may be fixed to the lower end of the probe to ensure good contact with the material 4. If the container is made of conducting material it is earthed and if it is made of a non-conducting material a plate 14 is provided below the level of the probe end or plate 12. When the material in the container rises to a level so that it contacts the plate 12 or the end of the probe its capacity is placed across the tuned grid circuit and its conductivity damps the circuit; hence the oscillator goes off tune or ceases to oscillate and the anode and screen currents of the valve 28 consequently change. These changes in current cause a differential relay 50 to operate to switch on an indicator lamp 62. The differential relay has one coil connected in the anode circuit and its other coil connected in the screen circuit of the valve 28. This embodiment only gives an indication that the level of the material is at or above the end of the probe 6 and when a continuous indication of the level is required the probe 6 is replaced by a condenser comprising two parallel plates, one plate being connected to earth and the other plate being connected to the grid end of the grid coil. Thus as the material rises between the plates the changing capacity of the condenser changes the tuning of the grid circuit of the oscillator and hence changes the anode current of the valve which is indicated on a milliammeter calibrated in terms of material level.
Patent GB-554741-A (GB)
Title: Improvements in or relating to riveting dollies
IPC: B21J15/36
Filed: 1942-03-19
Abstract: 554,741. Hinges &c. WARNE, F. J. March 19, 1942, No. 3688. [Class 65 (ii)] [Also in Group XXII] Relates to the angular adjustment of pivoted members, comprises means for locking in the adjusted position. and is described with reference to holders up for use in writing. An adjustable dolly has a holder 2, that is adapted to receive interchangeable snaps, having a shank pivoted in the fork end of the shank 4 on an eccentric portion of a pin 1. Interengaging serrations 5 hold the parts in the adjusted position. A half turn of the pivot 1 carries the serrations out of engagement leaving the holder 2 free to be adjusted, a further half turn re-engages the serrations after which the parts are locked by a screw 3.
Patent GB-764150-A (GB)
Title: Improvements in or relating to pliers
IPC: B25B27/20
Filed: 1955-02-08
Abstract: 764,150. Pliers. WALDES KOH-I-NOOR Inc. Feb. 8, 1955 [March 16, 1954], No. 3697/55. Class 61 In pliers for handling open-ended spring retaining rings, means for controlling the angular movement of the handles towards one another comprises a bracket 23 fixed to the bottom of the channel of one of the handles 19, the other end of the bracket having a threaded eye 26 to receive an adjusting screw 27 extending transversely between the handles and having a head 28 disposed adjacent to but normally spaced from the other handle 18. The screw 27 is locked in adjusted position by a lock nut 30. The fixed end of the bracket 23 is curved to correspond to the bowing of a leaf spring 20 which is fixed at one end to the bottom of the channel of the handle 19 and bears against the bottom of the channel of the handle 18, the bracket and the spring being secured to the handle 19 by a rivet 21. The jaws 14, 15 have pointed tips which may be inclined out of the plane of the arms 10, 11. The arms are pivoted by a rivet 12 which extends through offset hub portions 13, 13a, compression of the handles causing spreading of the tips of the jaws. In a modification for use with internal rungs. the plier arms are pivoted in crossed relation.
Patent GB-742242-A (GB)
Title: Improvements in the cooling of turbine rotors
Inventor: FLINT JOHN AVERY
IPC: F01D5/08
Filed: 1951-02-15
Abstract: 742,242. Elastic-fluid turbines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Feb. 15, 1952 [Feb. 15, 1951], No. 3705/51. Class 110(3) In an elastic fluid turbine having a rotor provided with one or more cooling passages, the cooling fluid is supplied to a tangential entry in a member formed with an annular cavity surrounding the rotor axis at the inlet to one of the cooling passages. The rotor comprises discs 1, 2. 3 interconnected at 5, 6 by screwed flanges and spaced apart to form cooling spaces 15, 16. The discs 1, 3 are carried on stub shafts 9, 10. A sleeve, 22 and an end disc 13 are mounted on the shaft 9, a cooling space 14 being formed between discs 1, 13. The shaft 9 is hollow and surrounds a tube 20 leading to space 16 and the annular space 21 between the bores of the shaft and the tube communicates with space 15. The shaft 9 or the interior of the sleeve is splined to provide passages 9a leading to space 14. The bore of the shaft or the exterior of the tube 20 may be similarly grooved. The member 24 forming an end cap of a bearing housing has annular cavities 24a, 24c communicating with space 21 and passages 9a. Cooling fluid is supplied to the cavities through tangential inlet bosses. Cooling fluid is also supplied to the tube 20. Passages 1a, 2a, 3a lead from the cavities to the blade roots. Discs 29 with radial ribs are arranged in the cooling spaces 14, 15, 16 to form radial passages which are lined with polished metal. Specification 742,241 is referred to.
Patent GB-449339-A (GB)
Title: Improvements in or relating to the formation of electrodes for the electrolysis of liquids
IPC: C25C7/02
Filed: 1935-02-06
Abstract: 449,339. Making electrodes. RALPH, S. J., and ALUMINIUM PLANT & VESSEL CO., Ltd., Point Pleasant, Wandsworth, London. Feb. 6, 1935, No. 3822. [Classes 83 (i) and 83 (ii)] [See also Group XXXVI] An electrode for the electrolysis of liquids comprises a hollow cylindrical body of a relatively expensive metal, with a surmounting ring of cheaper metal of good electrical-conductivity united thereto by fusion. A hollow, cylindrical, nickel body a is secured to a ring b of copper by casting, welding, or silver-soldering. Openings c for the passage of the electrolyte are formed by slitting the tube a before flaring the end. The member a may be cut from a tube, or bent up from a sheet metal blank the edges being welded as far as the position at which flaring commences. Pins secured to the tongues or other protuberances may assist the union of the parts a, b.
Patent GB-1183308-A (GB)
Title: Method of Recovering Fluorine from Carbonaceous Waste Material
IPC: B09B3/00
Filed: 1969-01-23
Abstract: 1,183,308. Recovering fluorine as HF. ELEKTROKEMISK A.S. 23 Jan., 1969 [1 Feb., 1968], No. 3888/69. Heading C1A. Fluorine is recovered from waste carbonaceous material, in the form of gaseous HF, by pyrohydrolysis in the presence of steam and air, the process being carried out continuously in a fluidized bed reactor to which solid carbonaceous material crushed to granular form is continuously added, the fluidizing gases being a mixture of air and steam. The preferred temperature is above 1100‹ C., and the fluidizing gases may be preheated in a heat exchanger. The heat demand comes either entirely from the combustion of the carbonaceous material or partly also from added fuel. The grain size is preferably below 10 mm. and the fluorine may be recovered from the off gas by washing with water or aqueous alkali. Disclosed is the recovery of fluorine from pot linings and pot rakings, scum and cyclone dust derived from the melt electrolytic production of aluminium. The fluorine recovered may be converted into cryolite and returned to the electrolysis.
Patent GB-1134221-A (GB)
Title: Improvements in and relating to the dyeing of pile fabrics
Inventor: HYDE CHRISTOPHER THOMAS
IPC: D06P1/642
Filed: 1965-01-29
Abstract: 1,134,221. Dyeing pile fabrics. COURTAULDS Ltd. 25 Feb., 1966 [29 Jan., 1965], No. 3971/65. Heading D1B. Pile fabrics containing hydrophobic fibres in the pile are dyed by impregnating them with a dye medium containing a foaming agent which encourages the formation of foam when subjected to heat at at least 90‹C and subsequently subjecting the fabric to a heat treatment at at least 90‹C. The foaming agent should have gas forming and foam stabilising properties and may be a single compound, e.g. an amine oxide having a polar group and a hydrocarbon chain e.g. N-dodecylmorpholine oxide or may be a mixture containing e.g., a quaternary ammonium salt, e.g. trimethyl-N-hexadecylammonium chloride and a volatile compound e.g. methanol or ethanol. The heating is preferably accomplished with steam at about 100‹C. The fabrics may be of nylon, polyester, acrylic, modacrylic or cellulose acetate fibres which may be mixed with non-hydrophobic fibres, e.g. viscose, and be in the form of carpets, velvets, fleece fabrics, simulated furs, blankets and napped fabrics. The dye medium may be applied by spraying, padding or printing and may also contain thickeners; in the Examples the auxiliaries coemployed are ethylene carbonate, sodium chlorate and urea.
Patent GB-1520715-A (GB)
Title: Method and circuit arrangement for the interference-free reception of the baseband of a baseband vocoder
IPC: H04B1/66
Filed: 1977-02-01
Abstract: If the baseband of baseband vocoder signals transmitted as modulation by AM transmitters is intended to be received free from interference even by conventional AM receivers, the coded amplitude signals and synchronisation signals must not be audible, the masking effect having to be taken into account here. Since the synchronisation signals are also transmitted in signal pauses, their level must be very low, which leads to separation difficulties during demodulation by vocoder receivers. The phase of the carrier of the synchronisation signals is therefore shifted by means of the phase shifter (PS) through 90 DEG  in relation to the phase of the carrier of the coded amplitude signals. <IMAGE>
Patent GB-1157240-A (GB)
Title: Metering and Dispensing Device for Viscous Liquids
IPC: G01F13/00
Filed: 1968-01-25
Abstract: 1,157,240. Delivering measured quantities of viscous liquid. SCOTT PAPER CO. 25 Jan., 1968 [2 Feb., 1967], No. 4064/68. Heading B8N. The dispensing apparatus described in the present application is substantially the same as that in Specification 1,124,313 except that both the walls 11, 12 are inclined to the movable member 17 and that both are provided with flexible strips 15; the chains are directed to such features. The lower edge 18 of the member 17 may have a wavy or other shaped contour (Figs. 5 and 6).
Patent GB-725435-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G7/04
Filed: 1953-02-13
Abstract: 725,435. Electric indicating systems. CAPDEPONT, G. Feb. 13, 1953 [Feb. 14, 1952], No. 4089/53. Class 40 (1). Automatic weighing apparatus comprises a balance 1 wherein a body P on one scale pan is balanced by a tare weight T on the other pan together with an electro-dynamic force F opposed to (or added to) the tare and produced by the interaction of a permanent magnet 3 and a coil 2 energized by a current I, which is derived from a constant voltage source 6 through an ammeter 7 and a tapped variable resistance 4, whose slider 5 is adjusted by a motor 9 controlled by contacts or a photoelectric cell (not shown) responsive to deflections of the balance beam to restore equilibrium. A vernier resistance (not shown) in series with resistance 4 may be varied by the motor through reduction gearing to cover the intervals between successive taps and the motor is also adapted to rotate a contact arm 10 over contacts 11a to 11e to selectively energize indicating or control devices 12a to 12e in accordance with the equilibrating rotation dependent on the weight of body P, from current source 14 through series resistance 15, the selector switch being normally by-passed to earth by contacts 13 which open when the balance beam is in equilibrium to allow energization of the selected device 12. Contacts 13 are replaceable by photoelectric, inductive or capacitative equilibrium detectors. The apparatus is applicable to the recording of weights of articles in continuous production, and to the rejection of substandard articles; the equilibrating motor being energized when each article is brought into the weighing position. Sorting and recording devices may alternatively be operated mechanically from the motor shaft. Damping may be introduced by winding coil 2 on a conductive former.
Patent GB-546194-A (GB)
Title: Improvements in or relating to aim-testing devices for firearms such as rifles
IPC: F41A33/02
Filed: 1941-03-27
Abstract: 546,194. Teaching shooting. MARTIN. A. E. March 27, 1941, No. 4117. [Class 119] A light-projector aimtesting device comprising- a tube adapted to be attached to a firearm is equipped at its front end with a rotatably adjustable lens of which the optical axis is eccentric to the axis of angular adjustment of the lens and at its rear end with a source of light that is adjustable transversely to the direction of projection whereby the projected spot of light may be brought into coincidence with the point of aim as viewed along the sights. The tube 1 adapted to be mounted on a rifle 2 by clips 8, 9 engageable with the usual bayonet supports, is provided with a rotatably-adjustable simple lens at 3, the optical axis of which is eccentric to the axis of adjustment, that is to the axis of the tube 1 and the electric bulb 4 is carried by a lever 7 mounted on a vertical pivot 6. The battery 11 is attached to the trigger guard 12 by a clip 11a to which is secured a contact strip 13 whereby the circuit of the bulb 4 is closed on pulling the trigger 14.
Patent GB-1453225-A (GB)
Title: Wet-chemical leaching of molybdenum sulphide-containing material
IPC: C22B3/04
Filed: 1974-01-29
Abstract: 1453225 Recovering molybdenum MOLYSCAND AB 29 Jan 1974 [30 Jan 1973] 4145/74 Heading C1A Molybdenum is recovered by wet-chemical leaching of molybdenum sulphide-containing material with nitric acid by effecting the leaching with vigorous agitation and with substantially stoichiometric proportions of nitric acid in at least two steps such that the resulting leach solution is substantially free from nitric acid and subsequently subjecting the leach solution to solvent extraction to transfer molybdenum values dissolved therein to an organic phase. Vigorous agitation is required to prevent molybdic acid formed during leaching from being precipitated on to the molybdenum sulphidecontaining material. An amine - containing organic phase may be used, optionally containing at least one tertiary alkylamine in which the alkyl chain has 6-20 carbon atoms. Alkylamine resins, quaternary ammonium compounds, alkyl phosphorus compounds, lowboiling petroleum fractions and long chain aliphatic alcohols are also mentioned as components of the organic phase. The process may be operated as a batchwise continuous process. Copper, iron and rhenium are also extracted. Copper and iron may be stripped from the organic phase with sulphuric acid, and the organic phase then treated with ammonia or ammonium ions to extract ammonium paramolybdate and perrhenate. This solution is passed through an anion exchanger where perrhenate is absorbed, and ammonium paramolybdate is recovered by precipitation or crystallization. The perrhenate is then eluted with perchloric acid.
Patent GB-1120384-A (GB)
Title: Improvements relating to underground gasification of coal
IPC: E21B43/295
Filed: 1966-02-02
Abstract: <PICT:1120384/C4-C5/1> A method for the underground gasification of the exposed face 1 of a coal seam comprises locating a movable wall 2 parallel to the face 1 to define a combustion space C, supplying one or more streams of an oxidant (e.g. air, oxygen, steam or carbon dioxide) to the space C to promote combustion and gasification of the face 1, extracting hot products of combustion from the space C, and advancing the wall to keep pace with retreat of the face.  The wall may comprise vertical sections articulated together and mounted by arms 4 on self-advancing roof supports 3.  Self-sealing members 5 may be provided on the wall 2.  Oxidant is supplied through passages (not shown) in the wall 2 from a pipe 6 and product gases similarly withdrawn through a pipe 7.  The space C may be compartmented by vertical partitions carried on the wall 2.  Advance of the wall 2 may be automatically controlled through sensing devices on the wall.
Patent GB-607662-A (GB)
Title: Improvements relating to stone cutters
IPC: B28D1/12
Filed: 1946-02-11
Abstract: 607,662. Cutting stone. CARLYLE & CO., Ltd., R., and HOLMES, C. E. Feb. 11, 1946, No. 4156. [Class 124] A stone cutting tool comprises blades b, b<SP>1</SP> made of tungsten carbide or like cutting alloy and brazed in plates or blocks a which are made of mild steel or the like and which are keyed into a swinging or reciprocating bar or the like c, the blades in alternate plates being splayed in opposite directions. The blades project on both sides and below the plates.
Patent GB-145093-A (GB)
Title: Improvements in inductances for wireless telegraphy and allied uses and in the manufacture thereof
IPC: H01F41/06
Filed: 1916-03-23
Abstract: 145,093. Clarke, E. R. March 23, 1916. Winding - machines for electric inductances. A disk of presspahn or other insulating-material a has an odd number, for example nine or eleven, of radial slots having bevelled edges. Wire is wound spirally from the bottom of the slots to the periphery, passing through the slots backwards and forwards alternately. The slots are widened at their periphery as shown at b<1> to facilitate winding. Fig. 2 shows a machine for winding the coils. The insulating-disk a to be wound is mounted on a mandrel d. The wire passes through a metal loop 0 which is caused to make a half oscillation while the disk turns through the angle between two slots.
Patent GB-1536942-A (GB)
Title: Apparatus for controlling the operation of a package filling device
IPC: F04B53/14
Filed: 1976-02-04
Abstract: 1536942 Reciprocating pumps INDUSTRIE WERKE KARLSRUHE AUGSBURG AG 4 Feb 1976 [5 Feb 1975] 04309/76 Heading F1A A pump for a packaging machine comprises a piston 1 reciprocated by a cam 11 acting via rocker 3 and an electromagnet 7 which is de-energized to disconnect the piston from its drive. In the embodiment shown, electromagnet 7 is mounted on a member 8 clamped to piston-rod 4 and prevented from rotating by guide 10, and rocker 3 is coupled to a member 5 slidable on piston-rod 4 and attracted to the electromagnet 7 to connect the drive. A locking pin 9 holds the piston in a deadcentre position when disconnected from its drive. An eccentric pin 12 connects a cam follower to rocker 3 for setting the piston stroke. In Fig. 2 (not shown), a further electromagnet (13) mounted on a fixed frame acts to lock the piston in its deadcentre position when the drive is disconnected. In Fig. 3 (not shown), rocker 3 is connected to a guided rod (17) carrying the drive electromagnet (7) which attracts a member (16) on the piston-rod.
Patent GB-758545-A (GB)
Title: A method of processing metals in comminuted or powder form
IPC: B22F3/12
Filed: 1954-02-15
Abstract: 758,545. Powder metallurgy. NIPPON SODA CO., Ltd. Feb. 15, 1954 [March 5, 1953], No. 4416/54. Drawings to Specification. Class 83 (4). Billets are made by filling comminuted or powdered metal, metal mixtures or alloys, into a casing, heating and exhausting the container and applying impulsive force to the surface of the casing while continuing its exhaustion and maintaining it at a temperature which softens the metal. A temperature of from one-half to two-thirds of the melting point of the metal or alloy is suitable. In an example, 8Kg. powdered titanium was put into a casing 5.5 inches diameter and 13 inches long, of carbon steel 6 mm. thick, the casing was exhausted while being heated to 900-1000‹ C. and a hammer of #th ton was applied at the rates of 180 strokes per minute four'times with intermediate reheating, for a total time of five minutes. In another example, nickel powder was placed in a casing of Cr-Ni stainless steel which was exhausted while heating to 730-930‹ C., hammered as before and finally annealed for one hour at 750‹ C. Other examples are given for iron, tantalum, zinc, aluminium, copper and zinc, nickel and manganese, titanium and copper, titanium and manganese. Examples are also given of the production of billets from titanium and nickel in scrap form, the scrap being cleaned and washed, crushed and treated by a magnetic separator for the removal of iron before being filled into the casing.