baber/WOPTO huggingface dataset:
Patent GB-877132-A (GB)
Title: Petroleum residual fuel oils containing oil-insoluble metallic additives
IPC: C10L1/12
Filed: 1959-11-09
Abstract: A petroleum residual fuel oil has a finely-divided, oil-insoluble metallic additive stably suspended therein together with a calcium acetate hydrate formed in situ in the oil by the neutralization of a calcium base with acetic acid.  Metallic additives specified are iron oxide, magnesium oxide, magnesium hydroxide, magnesium sulphate, dolomite, alumina, kaolin, calcium oxide and mixtures of these, but nickel compounds are also mentioned.  Such additives are dispersed in the oil in order to (a) reduce the formation of stack solids during combustion, (b) abate high temperature corrosion caused by vanadium and other contaminants in the oil and (c) curtail low temperature corrosion attributable to the presence of sulphur in the oil.  The calcium base may be the oxide, hydroxide or carbonate, and a little water may be added in the case of the oxide and carbonate in order to supply the water of hydration.  In the examples, acetic acid is added to a slurry of calcium hydroxide in a portion of the fuel oil, magnesia or ferric oxide is then incorporated and the mixture diluted with the rest of the fuel oil.
Patent GB-1306979-A (GB)
Title: Production of granules
IPC: B29C48/05
Filed: 1970-08-06
Abstract: 1306979 Extruding thermoplastic material H HENCH 6 Aug 1970 [6 Aug 1969 15 June 1970 (4)] 37927/70 Heading B5A Apparatus for the granulation of plastics material comprises a melting vessel 2, Fig. 1, from which molten plastics is fed to an extruder 3, Fig. 3, comprising a number of radial ducts 14 each leading via a valve 15 to an extrusion nozzle 16 emitting a molten plastics strand. The nozzles are arranged in a circle and the strands therefrom are received by a correspondingly located circular series of fluid coolant ducts 50, Figs. 6 and 7, located in a vertically adjustable unit 4 supported by a wheeled carriage 7. The upper end of each duct is surrounded by a tubular casing 51 and is associated with a removable injector head 52. Coolant water is supplied to a headwater chamber 44 of the unit 4 and passes via a filter 46 into the heads 52 containing radial guide fins 58. Water under pressure is fed to an annular chamber 47 and flows upwardly through a filter 48 to an annular space 59 surrounding each duct into its injector head where the flow is reversed to create a suction effect around the strand. Each strand passes from a duct 50 through an attached pipe 10 to a cutting unit 5, Fig. 9, comprising a housing 69 receiving the ends of the pipes and the discharge of coolant therefrom. A shear bushing 73 is positioned at the outlet of each strand into the housing 69 and co-operates with a vertically adjustable rotary cutter comprising a circular series of detachable cutters 74 located on the periphery of a circular rotor 76 driven via a shaft 79, drive gear 8 and motor 9, Fig. 1. The extrusion nozzles may be located in two or more concentric circles, in which case instead of a single rotary cutter a number of rotary cutters may be located on a circle, each co-operating with a group of shear bushings. A heating medium surrounds the ducts 14 and the valves controlling the flow therethrough may be operated simultaneously by means of a valve control ring 22, Fig. 3, carrying rollers, Fig. 8, (not shown), engaging valve control levers 18. The rotational position of the ring is controlled pneumatically or manually. In a modification a cylindrical filter is located between each valve and the nozzles which it feeds, means being provided to allow heating medium to flow around the valves and the filters which are removable.
Patent GB-931411-A (GB)
Title: Improvements in or relating to a method of manufacturing silicon semi conductor devices
IPC: H01L21/00
Filed: 1959-11-10
Abstract: 931,411. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 10, 1959 [Nov. 13, 1958], No. 38072/59. Class 37. An alloy-junction silicon transistor or crystal diode is made by alloying to a body of silicon a material consisting mainly of indium and comprising at least one other significant impurity having a segregation constant in silicon exceeding that of indium, at a temperature between 900‹ C. and the melting point of silicon, preferably above 1050‹ C. The additional significant impurity may be aluminium, the aluminium content in the material not exceeding 1% by weight, e.g. 0.5%, or aluminium and antimony may be added, the ratio between the atomic concentrations of the antimony and the aluminium exceeding the ratio between their segregation constants in silicon. After alloying and cooling, the resolidified indium alloy may be removed by etching and replaced by a higher melting point metal or alloy e.g. by tin, lead or bismuth or an alloy of these metals with a donor or an acceptor and/or with silicon, e.g. by alloying and/or by electro-deposition. A small quantity of replacement material may be applied by vaporisation and melting, after which a further quantity of replacement material may be applied galvanically. In an example an alloy of indium and aluminium is alloyed to one face of a disc of monocrystalline N-type silicon having a resistivity of 1 ohm-cm., at a temperature of 1100‹C. in a hydrogen atmosphere and, after cooling, a pellet consisting of an alloy of gold and antimony, the antimony content being 5% by weight, is alloyed to the opposite face of the silicon disc at a temperature of 700‹ C. Dimensions are given.
Patent GB-1109457-A (GB)
Title: Segmented diaphragm assembly for turbines
IPC: F01D9/04
Filed: 1965-09-07
Abstract: 1,109,457. Turbine stator blades. WORTHINGTON CORPORATION. Sept. 7, 1965 [Nov.17, 1964], No.38115/65. Heading F1T. In a diaphragm assembly for turbines, a number of nozzle blade segments 30, Fig.1, each comprising at least one blade are attached to an outer segmented ring 14, 16 and located by an inner segmented ring 18, 20 for relative movement therewith for expansion purposes. Preferably, the rings 14, 16 and 18, 20 are forged , and the segments 30 are cast from stainless steel. Radial projections 38, Fig. 2, of the segments 30 are clamped in a circumferential groove 40 in ring 14, 16 by a segmented member 44 containing a seal 48 for the rotor blade tips. Axially extending pins (49), Fig. 3 (not shown), in bores through the junction between the outer surfaces of the projections 38 and the bottom of the groove 40 prevent circumferential movement of the segments 30. Expansion clearances 57 are provided. The ring 18, 20 comprising two segments located together by pins 60, 62, has a peripheral projection 64 extending into channels 66 in the segments 30 with expansion-permitting clearances 68. Moreover, the ring 18, 20 has guide keys 72 which engage grooves in the segments 30 with radial clearances 76. Circumferential clearances 33 are provided between the inner parts 32 of segments 30. The ring 18, 20 carries a labyrinth seal 59 for the rotor. The diaphragm assembly is positioned within the turbine casing by a locating surface 52, and by pins 80 which are located in holes 78 with radial clearances 82.
Patent GB-1083815-A (GB)
Title: Vaccine adjuvants
Inventor: NEAL RALPH ARTHUR
IPC: A61K39/39
Filed: 1963-10-01
Abstract: A vaccine for immunising a vertebrate against a protozoal disease comprises an antigen preparation of protozoal origin together with a saponin preparation.  The vaccine may contain appropriate pharmaceutical excipients and may be sterile.  The antigen preparation can be obtained from the causative protozoa, or from a morphological form other than that occurring in the vertebrate host. Antigen preparations for vaccines against disease caused by Trypanosoma spp. may be obtained from other species of protozoal flagellate non-pathogenic to the vertebrate species to be immunised. The antigen preparation can be obtained from protozoal cells grown in culture medium and, in many instances, from the surrounding medium. The cellular antigen preparation may be produced by killing the protozoal cells using conventional techniques.  The medium itself may be used as an extra-cellular antigen preparation, or the antigenic material may be isolated therefrom.
Patent GB-1394419-A (GB)
Title: Method and apparatus for filling electrically conductive particulate material into electrical connector sockets
IPC: B30B11/02
Filed: 1973-08-16
Abstract: 1394419 Making electrical sockets INTERNATIONAL BUSINESS MACHINES CORP 16 Aug 1973 [2 Oct 1972] 38794/73 Heading B3A [Also in Division B8] A method of filling electrically conductive particulate material 39, Fig. 3, into electrical sockets 24 of an electrical device 23, comprises loading the material on to an upper surface of a transfer plate 11 having holes 12 arranged in a pattern corresponding to that of the sockets, closing the holes by sealing means, e.g. elastomer element 15, vibrating the plate 11 to transfer the material into the holes 12, removing excess material from the upper surfaces of the plate 11, replacing the sealing means by the device 23 and vibrating the plate 11 and device 23 to transfer the material into the sockets 24. The transfer plate 11 is mounted in a loading fixture 10, which is preferably of brass or other non-magnetic material, and the material 39 comprises submicron powder of nickel and gold. The fixture 10 is mounted on a vibrator (18), Fig. 2 (not shown), and vibrated at 250-300 Hz to transfer the powder into the holes 12, the frequency corresponding to a resonant mode of the apparatus. A wiper element 20 removes the excess powder. The elastomer element 15 is removed carefully and replaced by the device 23 which is held in position by a holding plate 25. The apparatus is then vibrated through a range of 250-4000 Hz to transfer the powder into the sockets 24. The powder is compacted by a preform apparatus, Fig. 3, comprising compactors 36 and pin hole forming plungers 37. When the plungers are driven downwardly, springs bear on the compactors and the plunger tips are forced into the powder.
Patent GB-354152-A (GB)
Title: Improvements in spring suspensions for cycles and like vehicles
IPC: B62K25/14
Filed: 1930-12-24
Abstract: 354,152. Cycle spring frames. GOURDIN, R. P., Amilly, Loiret, France. Dec. 24, 1930, No. 38951. Convention date, Dec. 26, 1929. [Class 136 (iii).] In a spring suspension for the front or rear wheels of cycles &c. the wheel spindle o<1> is carried on each side by one end of a lever b, which is pivoted at o to a member a on the fork and is connected at f near its other end to a rod c provided with a piston g adapted to slide, against the action of opposed compression springs m, n, in a cylinder d, which is pivoted at e to a clip h &c. on the fork. By means of removable attachment members a, h, the suspension may be applied to existing cycles. Instead of helical springs, rubber, pneumatic, or other springs may be employed, and a friction damper may be provided.
Patent GB-1351158-A (GB)
Title: Lead for aircraft propeller electrical deicer system
IPC: H01B7/04
Filed: 1971-08-19
Abstract: 1351158 Aircraft propeller blade de-icing arrangements B F GOODRICH CO 19 Aug 1971 [20 Aug 1970] 39035/71 Heading B7V [Also in Division H1] An aircraft propeller de-icing arrangement includes a detachable lead 53 clamped between the adjustable pitch propeller blade unit 19 and the spinner bulkhead 15 of the propeller assembly 10 by cable clamps 69, 67, engaging the lead 53 over its enlarged ends 66, 65. Each de-icer "boot" on a blade 19 contains two alternately energized radially disposed resistance heaters. The lead strap 17 contains three wires 18 connected to terminals 27, 28, 29, on a portion 26 of bracket 22, which portion mounts the cable clamp 69. Lead 53 includes three insulated wires 57, 58, 59, connected between terminals 27, 28, 29, and a terminal block 38 on bulkhead 15. Wires 39, 40, 41, connect block 38 to slip rings 35, 36, 37, engaged by suitable brushes (not shown) for power supply purposes. The construction of lead 53, with a heat-shrunk sleeve 63, Fig. 5 (not shown), is described (see Division H1).
Patent GB-1026165-A (GB)
Title: Improvements in and relating to screw rotor machines
IPC: F04C18/16
Filed: 1962-10-16
Abstract: 1,026,165. Meshing-screw compressors and expanders. SVENSKA ROTOR MASKINER A.B. Oct. 16,1962 [Nov. 8, 1961], No. 39068/62. Heading F1F. In a rotary compressor, or expander, of the meshing-screw type, the axial thrust on a male male rotor 10 (Fig. 1, not shown) is balanced by a pressurized liquid, e.g. oil, acting on a piston 48 which is attached to a shaft extension 26 at the high-pressure end of the rotor. The said liquid is supplied by an independent source to a chamber 44 containing the piston through an inlet 44, leakage into an adjacent working space 20 being minimized by a labyrinth seal 46. The piston is coupled to the shaft extension by a key 49 and abuts the inner race of a roller bearing 30 which in combination with a ball bearing 32 supports the shaft extension in a chamber 50. Leakage of said liquid from chamber 44 into the chamber 50 serves to lubricate the bearings, whilst leakage into the space 20 effects lubrication of the highpressure end of the male rotor and that of an associated female rotor 12 (Fig. 2, not shown). Surplus liquid in the chamber 50 escapes through an opening 51. Sealing and cooling liquid, e.g. oil, is injected into the space 20 from a chamber 36 through a plurality of slots 38 formed in a housing structure 14 for the rotors.
Patent GB-868582-A (GB)
Title: Apparatus for feeding or treating foliate, fibrous or other materials
IPC: B65G27/00
Filed: 1958-12-05
Abstract: 868,582. Feeding tobacco. KÍRBER, K. Dec. 5, 1958 [Feb. 1, 1958], No. 39269/58. Class 130. [Also in Group XXX] Apparatus for feeding tobacco comprises a jigging conveyer 1 having an inclined bottom 8 and delivery points 2, 3, 4 in one side wall in front of which are arranged adjustably mounted deflectors 5, 6, 12, respectively. Shoots 7 fixed to the conveyer outside each delivery point have a series of spaced parallel rods 15 secured to them. These rods loosen and open the tobacco as it passes over them and are made of comparatively soft material so that they may readily be bent.
Patent GB-1060019-A (GB)
Title: Separator for paper pulp suspensions
IPC: B01D29/11
Filed: 1965-09-15
Abstract: Suspension, e.g. paper pulp, is introduced to a chamber surrounding a tubular perforated screen, and filtered pulp passes inwards through the perforations, which are in the form of slots which widen out towards the inner surface, which partly defines a chamber from which filtered pulp is withdrawn. Vertically-arranged blades rotate close to the screen surface in the filtrate chamber to provide agitation and backwashing pulsations.
Patent GB-1237582-A (GB)
Title: A method and apparatus for maintaining the roll gap constant in a rolling stand
IPC: B21B37/64
Filed: 1968-08-16
Abstract: 1,237,582. Rolling mills. ACHENBACH SOHNE G.m.b.H. 16 Aug., 1968 [18 April, 1968], No. 39325/68. Heading B3M. [Also in Division G3] The roll gap in a rolling stand is kept constant by controlling the pressure in jacks 8, which place the stand under tensile stress, in response to measurements of both the rolling pressure and the thickness of a rolled workpiece. Signals from a load cell measuring the rolling pressure, and from a thickness detector 10, are fed to an adding device 11 and to a pressure regulator for the jacks.
Patent GB-1316648-A (GB)
Title: Percussively ignitable multilamp flash unit
IPC: G03B15/04
Filed: 1970-08-14
Abstract: 1316648 Percussive flash units GTE SYLVANIA Inc 14 Aug 1970 [14 Aug 1969] 39393/70 Heading G2A The base 56 of a multi-lamp percussive flash unit (20), Figs. 1 and 2 (not shown) is provided with apertures (69) through which a camera member 263 can pass to sense the presence of a cocked striker (68) and to release the same, there being a control surface 302 adjacent each aperture (69), which surface acts to arrest the member 263 during its sensing movement into engagement with a cocked striker to prevent premature release thereof. Alternatively, separate sensing and actuating members may be provided. The camera socket surround 100 may be provided with dampening mechanism 300 associated with the control surface. As the camera socket is rotated in association with the operation of film advancing mechanism a retracting cam 118 operates on follower 240 which, via mechanism 207 engaging member 205, withdraws the member 263 from the unit (20). Further rotation of the socket causes the follower 240 to drop off cam ring reach 307 onto reach 308 under spring action, thus allowing the member 205, and hence the sensing member 263 to use so that the latter engages the base 56, Fig.7. Further rotation brings the follower 240 into engagement with reach 310 and the sensing member 263 into engagement with the surface 302 Figs. 6, 8 (not shown), while mechanism 207 again contacts the member 205 at the point 278. The final rotational increment of the socket causes the follower 240 and sensing member 263 to move towards recess 312 and into the aperture 69 respectively, the mechanism 207 again separating from the member 205. The upward movement of the sensing member 263 is halted by the cocked flash lamp striker (81). If, however, the flashlamp has already been fired, the member 263 will continue to rise, thereby causing a signal flag (262) to become visible in the camera viewfinder (18). For firing an unused flash-lamp, the member 263 is moved sharply upwards, on operation of the camera shutter release (14), to release the striker (81) and fire the flash-lamp. Insertion of the flash unit changes over the shutter speed to its flash setting.
Patent GB-1011880-A (GB)
Title: Improvements relating to flow indicators for fluid conduits
IPC: G01P13/00
Filed: 1961-11-03
Abstract: 1,011,880. Indicating fluid flow. L. R. McCULLOCH. Oct. 1, 1962 [Nov. 3, 1961), No. 39439/61. Heading G1R. An indicator for flow and non-flow conditions in a fluid conduit 5-6 comprise a helically disposed length of resilient material 4 which is secured by its outer periphery 2 in the conduit lying in a plane across the direction of flow so as to be displaced out of this plane by the flow. The helix is of synthetic plastic of a suitable colour to be observed through a transparent portion of the conduit. The helix shown in Fig. 4 differs from that shown in Fig. 2 in that the centre portion 3 is omitted. Multiple helices may be used. The slit may extend into the clamping portion of the disc. Specification 1,011,879 is referred to.
Patent GB-1508798-A (GB)
Title: Porous silicon nitride bodies
IPC: C04B41/85
Filed: 1974-09-10
Abstract: 1508798 Silicon nitride impregnated with cordierite UNITED KINGDOM ATOMIC ENERGY AUTHORITY 28 Aug 1975 [10 Sept 1974] 39510/74 Heading C1J [Also in Division C7] A porous Si 3 N 4  body has its pores at least partially filled with a refractory comprising cordierite The cordierite may be introduced by impregnating the Si 3 N 4  with MgO and Al 2 O 3  by immer sion in aqueous solutions of Mg(NO 3 ) and Al- (NO 3 ) 2  and firing to decompose the nitrates. The impregnated Si 3  N 4  is then heated in air above 1000‹C to partially oxidize the Si 3 N 4  and finally fired in a non oxidizing atmosphere e.g. at 1300-1380‹C or 1400-1500‹C in nitrogen when silicon oxynitride is formed. The cordierite content is preferably 10-15% by wt. based on the Si 3 N 4  and 1-2% of the oxides of Li, Ca, Mn and Y may also be present.
Patent GB-1126972-A (GB)
Title: Paper making apparatus
IPC: D21F9/04
Filed: 1965-09-17
Abstract: 1,126,972. Paper making apparatus. O. DORRIES G.m.b.H. 17 Sept., 1965 [25 Sept., 1964], No. 39787/65. Heading D2A. A paper-making machine has the crosssection of passage 3 and of the gap 7 between the cylinder 1 and the stock guide adjustable, the region 6 between the passage and gap being of curved profile, and has an adjustable element 10 regulating the outflow of the stock. Passage 3 may be adjusted by means of lower member 4 and/or upper member 5 which also forms the stock guide and which may be adjusted by rotation or displacement. Element 10 is adjusted horizontally by spindle 11. Members 4 and 5 and element 10 can be arranged to be adjusted individually or together, manually or automatically.
Patent GB-888020-A (GB)
Title: Process and apparatus for producing continuous compacted powdered members
IPC: B22F3/17
Filed: 1959-11-25
Abstract: 888,020. Compacting powdered materials. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 25, 1959 [Nov. 28, 1958], No. 39999/59. Class 87(2). [Also in Group II] A metal, ceramic, or metalloid powder is compacted by confining a layer of the powder on at least three sides and exerting a pressure of between 5 and 100 tons per square inch on an open side, said compacting being conducted progressively on successive portions of the layer to produce a first high density section and several successive portions of lower density, and repeating the compacting on successive portions, each successive compaction overlapping a section previously compacted. Iron powder 26 is fed from hopper 16 on to an intermittently movable horizontal support 10 and is compacted by a vertically reciprocable plunger 14, the working surface of which comprises a first flat section 28 and a curved section 30, the upper edge of which slopes at between 5 degrees and 15 degrees to the horizontal, e.g. 7 degrees. Support 10 is moved leftwards half the length of section 28 on each retraction of plunger 14 so that a portion such as B receives full compaction from section 28 on two strokes after partial compaction by section 30 to produce a green iron rod 22 which is passed straight into a sintering furnace. The support 10 may comprise an endless belt, Fig. 1 (not shown). The punch may be of steel, titanium or carbide, and powders suitable for compaction include silicon, titanium, copper, graphite, barium titanate, calcium silicate, and germanium.