baber/WOPTO huggingface dataset:
Patent GB-1100727-A (GB)
Title: Improvements in or relating to permeable foamed macromolecular material
Inventor: ATKINSON EDWARD BROWELL
IPC: C08J9/04
Filed: 1964-11-27
Abstract: Fluid-permeable shaped structures are prepared by extruding an expandable macromolecular material through an extrusion die so that it expands on emergence from the die, stretching the material by withdrawing it under tension from the die in such a manner that its cross-sectional area is reduced to at most one quarter of the area which would have resulted from extrusion without stretching to elongate cells and interconnect them in a direction parallel to the tension thereby providing side-by-side passages extending longitudinally through the structure, and cooling the resin whilst maintaining it in a stretched state. Additional passages may be formed by a gauze in the extruder close to the die orifice.  The material may be withdrawn through a smooth bore sleeve coaxial with the orifice and spaced apart from it.  The shaped structure may be rolled between plates or rollers or subjected to crushing in directions perpendicular to the direction of elongation of cells. Suitable materials are polystyrene, copolymers of styrene with vinyl toluene, methyl methacrylate, acrylonitrile, or other acrylates or methacrylates, polyethylene, polyvinyl acetate, polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, a graft copolymer of styrene on a polyvinyl chloride trunk, a graft copolymer of vinyl chloride on a polystyrene trunk, polyvinylidene chloride, and post-chlorinated polyvinyl chloride. Suitable blowing agents are hydrocarbons, gases such as carbon dioxide, nitrogen or helium injected under pressure into the extruder, and materials which decompose to give a gas.  The resin may be contacted with the liquid or vapour of a sequestering, chelating or other complexing agent before or after extrusion. The structures are useful as cigarette filters.  In Example 2 finely ground activated charcoal is incorporated into the structure, and in Example 3 polyethylene oxide is incorporated to give increased retention of phenol.ALSO:A cigarette filter comprising a fluid-permeable shaped structure is prepared by extruding an expandable macromolecular material through an extrusion die so that is expands on emergence from the die, stretching the resin by withdrawing it under tension from the die in such a manner that its cross-sectional area is reduced to at most one quarter of the area which would have resulted from extrusion without stretching to elongate the cells and interconnect them in a direction parallel to the applied tension and thus to provide side-by-side passages extending longitudinally through the structure, and cooling the resin whilst maintaining it in a stretched state.  Additional passages may be formed by a gauze in the extruder close to the die orifice.  In Example 2 finely devided activated charcoal is incorporated into the structure and in Example 3 polyethylene oxide polymer is incorporated to give increased retention of phenol.ALSO:Extrusion pellets of polystyrene are coated by tumbling with liquid paraffin and sodium bicarbonate.
Patent GB-1486466-A (GB)
Title: Internal combustion engines
IPC: F02M25/07
Filed: 1974-11-08
Abstract: 1486466 Auxiliary combustion chamber IC engines; exhaust gas recirculation HONDA GIKEN KOGYO KK 8 Nov 1974 [8 Nov 1973 ] 48451/74 Heading F1B An I.C. engine comprises a main combustion chamber 15 supplied with air-fuel mixture via a main inlet passage 18 and a pre-combustion chamber 23 supplied with richer air-fuel mixture via an auxiliary inlet passage 22 and having an ignition means 25, the two combustion chambers being connected by a flame passage 24 and an exhaust passage 19 leading from the main combustion chamber 15 and communicating with a conduit 42, 43, 59 to conduct part of the exhaust gas to the auxiliary inlet passage 22 and a conduit 42, 61, 75 to conduct part of the exhaust gas to the main inlet passage 18. Opening of throttle valves 28, 33 by leftward movement of rod 38 causes a torsion spring 107 to rotate integral arms 19 and 82 anti-clockwise to open a valve 53, 54 unless this valve is kept closed by the action of vacuum in a chamber 101 communicated from a port 112 via line 111 and valve assembly 115 when one or more of the following applies: (a) vehicle speed below  20 kph, (b) oil temperature below 45C, (c) manifold vacuum above 400 mm. Hg, the valve assembly 115 being controlled by switches 128, 129, 130. Thus no significant recirculation occurs via valve 53, 54 until normal operating conditions are attained, although a by-pass 60 is provided to allow a very small amount of recirculation. When none of the conditions (a), (b), (c) applies armature 116 of valve assembly 115 is moved leftwards to admit atmospheric air via vent 118 so that a valve 123 closes and air passes via filter 141 and bleed orifice 140 to slowly relieve the vacuum in chamber 101  allowing the throttle rod to gradually open the valve 53, 54. Recirculation of exhaust gases to the main inlet manifold 30 takes place via a valve 71, 72 which is closed by a spring 73 when strong manifold vacuum is communicated from port 112 via line 111 and valve 146 to vacuum chamber 148. In Fig. 2 (not shown), vacuum actuated valve assembly 62 is replaced by a valve assembly (62a) actuated by lever arm (173) integral with arms 82, 91 via a lost motion device (168) (169) so that the valve assembly 44 opens before the valve assembly (62a).
Patent GB-1035568-A (GB)
Title: A method of manufacturing constriction-type pipettes from plastics material
IPC: B01L3/02
Filed: 1964-11-30
Abstract: 1,035,568. Moulding pipettes. O. BUUS. Nov. 30, 1964 [Dec. 6, 1963], No. 48495/64. Heading B5A. [Also in Division B1] In order to form a constriction in a pipette tube 8 of translucent plastics material a wire 10 is located in the tube within a heated chuck-like device and the jaws of the chuck are moved radially inwardly. The material extrudes between the jaws to form ribs.
Patent GB-1083586-A (GB)
Title: Improvements in or relating to walls and wall panels and furnaces and like heated enclosures incorporating same
IPC: C21D9/00
Filed: 1964-11-30
Abstract: 1,083,586. Electric - furnaces. H. JERU. Nov. 30, 1964, No. 48669/64. Heading H5H. [Also in Division F4] Refractory steel strips 1 forming electric heating resistances lining a furnace, are supported by external ties 8 and secured directly to rigid low density refractory plates 3. The steel strips are spaced by ceramic sleeves, and the bolts 4 securing the strips 1 to the plates 3 may be shot into position, the outside of the wall having mineral wool insulation 5 with an outer impervious skin 5a of impregnated glass tissue. Some of the bolts 4 may be connected to the outside ties 8,. which may be spring-mounted.
Patent GB-1063128-A (GB)
Title: Improvements in rings for ring spinning and twisting frames and travellers therefor
Inventor: EADIE DENIS SHELDON MCGREGOR
IPC: D01H7/60
Filed: 1964-12-02
Abstract: 1,063,128. Spinning rings. EADIE BROS & CO. Ltd. Nov. 19, 1965 [Dec. 2, 1964], No. 48912/64. Heading DID. A groove or recess a<SP>1</SP> is provided in the upper surface of the circumferential flange a by which a spinning ring is held in the ring holder C to receive the upper nose portion b<SP>2</SP> of the traveller B to facilitate the lower nose portions b passing under the ring when the traveller is being placed on the ring. As shown the recess extends through the ring holder C and a slide D moves in the recess. When a traveller is being fitted slide D is, as shown, moved outwardly preferably against spring action but during normal operation it fills recess a<SP>1</SP> (Fig. 1c not shown). In Fig. 2b, not shown, the recess a<SP>2</SP> covers the full depth of the flange and is normally closed by a pivoted member D<SP>1</SP>. In Fig. 3b, not shown, the recess is covered by a strip of resilient material D<SP>2</SP> which can be depressed by the lower nose portion of the traveller.
Patent GB-1208294-A (GB)
Title: Improvements in thermal power plants
Inventor: HRYNISZAK WALDEMAR
IPC: F02C7/105
Filed: 1967-10-27
Abstract: 1,208,294. Thermal regenerators. CLARKE, CHAPMAN & CO. Ltd. 25 Oct., 1968 [27 Oct., 1967], No, 48987/67. Heading F4K. [Also in Division F1] In a gas turbine plant the rate of heat transfer through a rotary regenerator R is controlled by varying the rotational speed of the regenerator in dependence upon the ambient temperature. The drum or the inlet and outlet hoods of the regenerator is/are driven through reduction gearing G by an auxiliary turbine T2. The latter is supplied with driving gas tapped from the exhaust stream of the main turbine T1 via a valve B controlled in response to ambient temperature.
Patent GB-962523-A (GB)
Title: Dyeing and printing processes
IPC: D06P3/66
Filed: 1962-12-31
Abstract: Textile materials of natural or regenerated cellulose are dyed or printed with water-insoluble reactive dyestuffs that advantageously contain at least one -OH group by applying an organic/aqueous padding liquor or print paste that contains the dye in true solution and wherein the organic solvent is a ketone or ketone-like product containing no -OH groups, and effecting fixation by treatment with an acid binding agent at any stage of the process.  The specified ketones and ketone-like products are acetone, methyl ethyl ketone, dioxane, tetrahydrofuran, dimethyl sulphoxide, tetramethylene sulphone and dimethyl formamide.  The padding liquor or print paste may contain up to 50% by weight of the organic liquid and may advantageously contain the acid binding agent (many specified) as well as neutral salts and other adjuvents, e.g., urea and carboxylic acid amides of low molecular weight.  Fixation may be achieved by the application of steam or dry heat or by prolonged storage optionally with rotation at room or moderately raised temperature.  The dyes to be used in the present process are free from -SO3H and -COOH groups and advantageously contain an -OH group as well as at least one reactive group (many specified)., they may be from the stilbene, azine, dioxazine, xanthone, thioxanthone, nitro, phthalocyanine, anthraquinone and especially azo dyestuff series, the latter of which may contain a metal atom.  The process may be applied to materials of viscose, linen, viscose staple and especially cotton.  Examples of padding and printing are given.  In Example 6 the reaction accelerators 1:4-diaza-bicyclo- (2:2:2)-octane and dimethyl hydrazine are coemployed.
Patent GB-492409-A (GB)
IPC: A21C11/00
Abstract: 492,409. Moulding Eccles cakes. WALKLET, J. June 15, 1937, No. 16538. [Class 87 (ii)] A machine for making Eccles cakes comprises an endless belt carrying a number of moulds consisting of a metal cup C mounted on and spaced from a square plate A, having a tube depending therefrom, and an ejector plate D inside the cup C mounted on a rod B which passes through the tube and carries a weighted wheel at its lower end.. The belt is made of wood and passes over octagonal pulleys. Paste and filling are placed in the mould and are stamped down by a stamper which also trims the paste. At the end of the belt the mould is inverted and the cake is pushed out by the weight of the wheel on to a conveyer.
Patent GB-1444968-A (GB)
Title: Manufacture of t-butanol
IPC: C07C29/80
Filed: 1973-10-26
Abstract: 1444968 t-Butanol; hydration of isobutylene BASF AG 26 Oct 1973 [27 Get 1972] 49913/73 Heading C2C t-Butanol is made by hydrating isobutylene with 20-48% w./w. aqueous H 2 SO 4  at 20- 45‹ C., extracting the t-butanol from the mixture with a saturated or a monoolefinic or diolefinic aliphatic or cycloaliphatic hydrocarbon having at least three carbon atoms or a C 6-10  aromatic hydrocarbon or a mixture thereof and isolating the t-butanol from the product, e.g. by distillation.
Patent GB-1157159-A (GB)
Title: Freezing System for Pipes
Inventor: BUSSI JEAN
IPC: G21C13/028
Filed: 1967-11-02
Abstract: 1,157,159. Stopping pipes. COMMISSARIAT A L'ENERGIE ATOMIQUE. 2 Nov., 1967 [15 Dec., 1966], No. 49944/67. Heading F2P. [Also in Divisions F4 and G6] Apparatus for temporarily blocking a substantially horizontal liquid carrying pipe by forming a plug of ice therein comprises an annular refrigerant jacket 20 disposed around the pipe 4, the length of the jacket being greater above than below the pipe. As shown, the pipe 4 carries heavy water acting as the moderator and coolant of a nuclear reactor 1 and is disposed coaxially within a further pipe 6, the space 7 between the pipes being in limited communication with a pool 2 of demineralized water in which reactor 1 is immersed. The jacket 20 comprises a relatively long upper section 21, a relatively short lower section 22 and side section 23 having inclined end faces, each section being of part-annular form. Liquid nitrogen is supplied in parallel to the sections from an annular leader 32, the nitrogen being supplied to the leader and withdrawn from the sections, in the form of vapour by air jacketed tubes which extend through a flange 16 of a coupling unit 12 for pipe 4. In operation, jacket 20 freezes the water in space 7 as well as that in pipe 4. The outer surface of pipe 4 is grooved at the location of the jacket to facilitate the adhesion of an ice layer formed between jacket and pipe, and the internal surface of the pipe has annular shoulders (Fig. 3, not shown) to facilitate adhesion of the ice plug.
Patent GB-1146437-A (GB)
Title: Hydrogenation reactions and catalyst
Inventor: LOGAN WILLIAM REID
IPC: C01B15/023
Filed: 1965-11-25
Abstract: 1,146,437. Hydrogen peroxide. LAPORTE CHEMICALS Ltd: 14 Nov., 1966 [25 Nov., 1965], No. 50184/65. Heading C1A. [Also in Division B1] H 2 O 2  is made in a cyclic process including alternate hydrogenation and' oxidation of anthraquinone derivatives in the presence of a catalyst comprising a macroreticular ion exchange resin, having a surface area of at least 5 m<SP>2</SP>/gm. carrying a deposit of one or more of Ru, Rh, Pd, Os, Ir and Pt.
Patent GB-1338687-A (GB)
Title: Clothes pegs
IPC: D06F55/00
Filed: 1971-10-28
Abstract: 1338687 Clothes pegs H L SNAITH 28 Oct 1971 [30 April 1971] 50267/71 Heading E2B A clothes peg consists of a one piece moulding of a synthetic resin plastics material having at least three legs, the legs being displaced from each other along a line corresponding to that of a clothes line on which the peg is to be used with adjacent legs on opposite sides of the clothes line. Each leg is ribbed 5 and provided with a ridge 12 towards its top end so that when the peg is applied to the clothes line the ridges are sprung over the line; the legs overlap at their lower end portions and then spread outwardly to provide a lead in for the line.
Patent GB-1279987-A (GB)
Title: Guards
Inventor: JOHN RONALD
IPC: F16P1/02
Filed: 1969-10-15
Abstract: 1279987 Machinery guards MOLINS MACHINE CO Ltd 14 Oct 1970 [15 Oct 1969] 50556/69 Heading F2J A guard 8, as described for the spindle 1 and tool 2 of a machine tool, comprises a flat strip wound in helical form with adjacent turns overlapping secured by a split ring 9 to a fixed plate 7 and to the spindle 1 so that movement of the tool towards and away from the workpiece 3 contracts and expands the guard. Stops formed by narrow strips secured to the edges of the helical strip or by turning over the said edges limit the adjustment of the guard and prevent adjacent turns disengaging. The strip may be stainless steel or other resilient material and the guard may be between any fixed and movable parts.
Patent GB-1013182-A (GB)
Title: Improvements in ice detector
IPC: G01N27/00
Filed: 1963-12-23
Abstract: 1,013,182. Detecting ice formation electrically. W. ROTH. Dec 23, 1963 [Dec 24, 1962], No. 50649/63. Heading G1N. The variations in the natural frequency of vibration of a circular diaphragm clamped around its periphery, when ice deposits form on its surface, is used to measure the degree of ice formation. As shown (Fig. 1), a magnetic diaphragm 11 is associated with a coil 16 wound on a permanent magnet core 15. The coil is connected in the input and output circuits of an amplifier 31, thereby causing the diaphragm to oscillate at its natural frequency which is dependant on the stiffness and thickness of any ice layer 17 on it. In an alternative arrangement (Fig. 2), coil 16 is balanced against a similar coil in an unexposed transducer 10, ice on the diaphragm is exposed transducer 10 producing a change in the impedance of the coil, which is indicated by the phase of the unbalanced signal, as measured by a phase detector 38. The unexposed transducer 10 provides automatic compensation for auxiliary variables. The apparatus is capable of distinguishing between deposits of different stiffness, e.g. ice and grease.
Patent GB-1438809-A (GB)
Title: Heating control systems
IPC: G05D23/22
Filed: 1973-10-31
Abstract: 1438809 Temperature controls in glass fibre manufacture PPG INDUSTRIES Inc 31 Oct 1973 [2 Jan 1973] 50676/73 Heading C1M [Also in Division H2] Apparatus for manufacturing glass fibres comprises a plurality of orifice tubes 16 each having a plurality of orifices 18 in its lower wall portion, from which extrude streams of molten glass delivered to the tubes 16 under pressure from a reservoir 14. The tubes 16 are secured to a common electrical bus-bar 48 by way of clamping bars 44 and are supplied with current so as to be heated by connections 92 the current being controlled by thyristors 80, 82 mounted between the arms of a member 56 extending from the connection 92. An arm 108 and a screw 112 are provided to adjust the pressure of a contact 46, carried by the connection 92, against the end of a tube 16. Various baffles are arranged around each tube 16 so as to direct cooling air from a supply tube 32 over the extruded glass fibres.
Patent GB-1124828-A (GB)
Title: Coating process
Inventor: TAYLOR PERCY RONALD
IPC: B22C9/04
Filed: 1965-11-30
Abstract: 1,124,828. Refractory moulds. MONSANTO CHEMICALS Ltd. 6 Oct., 1966 [30 Nov., 1965], No. 50696/65. Heading B5A. In a process for the production of refractory moulds to be used for casting metals, a pattern is coated with a slurry of binding agent and refractory filler, the pattern being vibrated during at least part of the coating operation. The binding agent may contain silica and is preferably a solution of a hydrolysed organic silicate or a silica sol. The pattern is preferably coated by dipping and vibrated while still submerged, preferably for 40-80 seconds at a frequency of preferably 30-2000 c.p.s. and an amplitude of preferably 0À010-0À030 inch. Mechanical contact between vibrating means and pattern is preferably established before vibrating or while the amplitude is < 0À001 inch, the amplitude thereafter being increased to the level desired. Several coatings each of slurry and stuces are usually applied, vibration being effected during at least the first two slurry-coating operations. The apparatus may have means for varying the amplitude of vibration and for adjusting the depth of the pattern within the slurry bath.
Patent GB-1162139-A (GB)
Title: Electric Kettles
Inventor: MORRIS RICHARD CHARLES
IPC: A47J27/21
Filed: 1965-12-01
Abstract: 1,162,139. Kettles. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 15 Nov., 1966 [1 Dec., 1965], No, 50997/65. Heading A4A. [Also in Division H5] A lidless kettle has a fluid-tight top cover 38 which is removable for replacement of the heating element 16. The handle 42 is integral with the cover 38 or is adhesively secured thereto. The kettle has a cut-out (not shown) or a simmering control device. Handle 42 comprises a ribbed, inverted U-shaped, structural member 46 with a cover member 48 of inverted U-section secured thereto by screws 50, which member 48 also locks end-plates 54 (stainless steels trims with inturned flanges) placed in position on the upright portions of member 46 after screws 44 have been tightened to secure cover 38 and handle 42 to the kettle top 4.
Patent GB-1272402-A (GB)
Title: Radar installation
Inventor: JENKINS WILLIAM ALFRED
IPC: G01S13/87
Filed: 1968-08-21
Abstract: 1,272,402. Radar. PYE Ltd. 15 Aug., 1969 [21 Aug., 1968; 31 Oct., 1968], Nos. 40083/68 and 51745/68. Heading H4D. An aircraft carries a radar transmitter common to aerials 14, 16, 17; aerial 14 traverses to emit a beam over an arc across the nose of the aircraft for weather radar purposes, aerial 16 points in a forward and adjustable direction below the flight path or the horizontal for affording plant range, and aerial 17 views the ground directly below the aircraft and is part of a radar altimeter. Transmitter-receiver 12 is connected to the aerials via a switch 28, controlled to connect the transmitter-receiver to aerial 14 alone for those periods when aerial 14 is in its intermediate traverse positions, to connect the transmitter-receiver 12 to aerial 16 alone when aerial 14 is at the rightward extremity of its traverse, and to connect the transmitter-receiver to aerial 17 alone when aerial 14 is at the leftward extremity of its traverse. Specification 1,272,403 is referred to.
Patent GB-1119088-A (GB)
Title: Current-limiting fuse having arc chutes in which arcs are formed to cut extensions of the current-limiting elements
IPC: H01H85/38
Filed: 1966-11-18
Abstract: 1,119,088. Electric cut outs. S. & C. ELECTRIC CO. 18 Nov., 1966 [26 Jan., 1966], No. 51784/66. Heading H2G. In a cartridge fuse generally similar to that disclosed in Specification 1,108,108 the spark gaps are enclosed in arc blast chutes which direct the heat of the spark on to the auxiliary fuse elements. Thus the auxiliary fuse elements are blown by the combined efforts of the currents through the auxiliary fuses and the heat of the sparks. As shown electrodes 38 are crimped into contact with the auxiliary fuse elements or tapes 30 and are supported in an insulator having radial fins which define the arc blast chutes 73. When a spark bridges the gap between an electrode 38 and the rim 69 of a conductive tube 68, the corresponding chute directs the blast so as to burn through the extension 71 of the corresponding auxiliary fuse element. A garter spring 61 of berylium and copper completes the connection between the electrode 55 and the electrode 14 when the indicator tube is in the non-indicating position (Fig. 1, not shown). An annular washer 75 of inorganic material such as calcium carbonate or magnesium borate which evolves gas for increasing the arc blast action may be included as shown.
Patent GB-1368608-A (GB)
Title: Low temperature liquefied gas tank of a membrane type
IPC: F17C3/02
Filed: 1971-11-09
Abstract: 1368608 Carrying liquefied gases BRIDGE-  STONE LIQUEFIED GAS CO Ltd 9 Nov 1971 [10 Nov 1970] 51999/71 Heading B7A [Also in Division F4] A tanker ship is provided with a cryogenic tank which comprises an outer rigid wall 1a on the inside of which is a heat insulating layer 2, and two membrane-type walls 3a and 3 located inwardly of layer 2. The inner primary wall 3 is thicker than the secondary wall 3a and the space between them, which contains a gas other than that being stored, is kept at a pressure not lower than that between walls 3a and layer 2 and not higher than that in tank 3, thus ensuring no inward buckling of the wall 3a. The pressures in the spaces are controlled by means attached to pipes 10, 11. The upper wall of the tank has a cylindrical member 5 for gas pipes &c. from which cantilevers 9 extend to support the membrane tanks 3, 3a. The radius of curvature of the secondary wall 3a has a smaller radius of curvature at its top and side edges than  that of wall 3 since it is thinner yet has to withstand the same hoop stress.