baber/WOPTO huggingface dataset:
Patent GB-825869-A (GB)
Title: Improvements in or relating to foamed resin materials
Inventor: AMES THOMAS RAWLINSON
IPC: C08G18/42
Filed: 1956-12-07
Abstract: A method of producing rigid or semi-rigid foamed masses comprises reacting together, in the presence of water and a tertiary amine catalyst, an organic diisocyanate and an alkyd resin derived from the reaction of a nondrying oil, a semi-drying oil or a nut oil, an alcohol selected only from polyhydric alcohols containing at least four primary or secondary hydroxyl groups per molecule and a mixture of dicarboxylic acids or their anhydrides, the amount of water being 1 to 5% by weight of the alkyd resin.  Oils specified are castor, cottonseed, coconut and palm kernel oils.  Pentaerythritol is the preferred polyhydric alcohol.  The products can be made self-extinguishing by the inclusion in the reaction mixture of antimony trioxide, chlorinated paraffin waxes or tri-b -chlorethyl phosphate.  In examples, resins are prepared by heating respectively: (1) castor oil, (2) crude coconut oil, and (3) cottonseed oil with pentaerythritol in the presence of calcium naphthenate, followed by further reaction with a mixture of adipic and phthalic acids. The products are foamed by mixing with water and a tertiary amine such as N - ethyl - morpholine followed by a mixture of 2 : 4- and 2 : 6-toluylene diisocyanates.ALSO:A method of producing rigid or semi-rigid foamed masses comprises reacting together, in the presence of water and a tertiary amine catalyst, an organic diisocyanate and an alkyd resin derived from the reaction of a non-drying oil, a semi-drying oil or a nut oil, an alcohol selected only from polyhydric alcohols containing at least four primary or secondary hydroxyl groups per molecule and a mixture of dicarboxylic acids or their anhydrides, the amount of water being 1 to 5 % by weight of the alkyd resin.  Oils specified are castor, cottonseed, coconut and palm oils.  Pentaerythritol is the preferred polyhydric alcohol. The products can be made self-extinguishing by the inclusion in the reaction mixture of antimony trioxide, chlorinated paraffin wax or tri-b -chlorethyl phosphate.  In examples resins are prepared by heating, respectively, (1) castor oil, (2) colide coconut oil and (3) cottonseed oil with pentaerythritol in the presence of calcium naphthanate, followed by further reaction with a mixture of adipic and phthalic acids.  The products are foamed by mixing with water and a tertiary amine such as N-ethyl-morphaline followed by a mixture of 2 : 4- and 2 : 6-toluylene diisocyanates.
Patent GB-1338714-A (GB)
Title: Photographic colour silver halide developing process
IPC: G03C7/42
Filed: 1971-08-11
Abstract: 1338714 Bleaching or bleach-fixing photographic silver halide material AGFAGEVAERT AG 11 Aug 1971 [20 Aug 1970] 37624/71 Heading G2C Colour photographic images are produced by colour developing an imagewise exposed photographic silver halide material and then bleaching and fixing or bleach-fixing, the bleaching or bleach-fixing being effected in the presence of an aromatic sulphohydrazide of the formula:- wherein R<SP>1</SP> is H, NO 2  or carboxyl and R<SP>2</SP> is H, halogen or alkyl or alkoxy having up to 3 carbon atoms. The bleach-fixing bath may contain 0À5-10g of the aromatic sulphohydrazide per litre, 100-200g of sodium or ammonium thiosulphate per litre and 1-5g of a white coupler per litre. The developed material may be treated with an aqueous solution of the aromatic sulphohydrazide before bleaching. These compounds are antifoggants and prevent the formation of bleach fog.
Patent GB-336859-A (GB)
Title: Improvements in knife sharpeners
IPC: B24D15/08
Filed: 1929-12-09
Abstract: 336,859. Gibbons, K. M. Dec. 9, 1929. V-slot blade sharpeners.- Relates to a knife sharpener of the type described in Specification 233,855, and consists in an improved construction. A cradle 1 cut from extruded bar of the appropriate crosssection having a thick central portion 4 is slotted to carry cutting discs 3 and slides into a channel portion 6, the whole being secured to a base 7 by screws 8 passing up into the thick central portion of the cradle.
Patent GB-1195423-A (GB)
Title: Improvements in and relating to Wearing Apparel in the Form of Panty Girdles
IPC: A41C1/00
Filed: 1967-08-16
Abstract: 1,195,423. Panty girdles. SEARS, ROEBUCK & CO. 16 Aug., 1967 [27 Feb., 1967], No. 37774/67. Heading A3V. A panty girdle comprises a body and leg portion formed from two-way stretch fabric having an extensibility of more than 100 per cent. in both directions, the horizontal extensibility being at least twice the vertical, and a crotch piece which is also extensible in two directions, its vertical extensibility being approximately 200 per cent. The fabric of the body and leg portion is preferably warp knitted of Spandex yarns and the crotch piece is a tricot fabric of nylon and Spandex yarns. As shown the body and leg portion comprises inner thigh panels 18 and sections A, A<SP>1</SP>, the latter being seamed directly to each other at centre back (20), Fig. 5 (not shown), and each seamed to an inelastic panel P which comprises a laminate with a lace panel outermost. Sandwiched between layers of the panel and spanning the seam between sections A, A<SP>1</SP> and the panel P are elastic substantially elliptical panels 22. Similar panels 31 are secured to the inner face of the sections A, A<SP>1</SP> by seams 32, 33. Each section A, A<SP>1</SP> includes an extension (27), Fig. 5, which is folded back from the seam (20) on the inside of the girdle and further elastic reinforcing panels (30) span the edges of the extensions (27). Waist and leg bands a, b are of a material and stretchability similar to that of the adjacent body portion and have a soft inner facing. Strips 50 have a plurality of passages (55), Fig. 7 (not shown), for hooking on suspenders.
Patent GB-1183522-A (GB)
Title: Improvements relating to pneumatic Actuators
Inventor: RUSSEL LIONEL VIVIAN FRANK
IPC: F15B11/076
Filed: 1966-05-16
Abstract: 1,183,522. Pneumatic actuators. P.C . PAYNE & CO. (KEYNSHAM) Ltd. Aug.16, 1967 [May 16, 1966], No.37800/67. Divided out of 1,183,521. Heading F1P . In a pneumatic actuator comprising a pair of pistons 1 each reciprocable in a respective cylinder 2 by gas pressure applied to one face thereof and wherein the cylinder spaces on the opposite faces of the pistons are filled with liquid which has to flow from one cylinder space to the other when one or other piston is pressurized, the pistons are provided with spaced seals 12, 13 and a bleed passage therebetween, whereby gas which leaks past the seal 12 is exhausted through the bleed passage and does not enter the liquid. The bleed passage may be directly connected to atmosphere or, as shown, may be controlled by a flap valve 14. The pistons 1 in the embodiment shown are ganged together, but they may be independently located in cylinders having their liquid spaces connected by a conduit.
Patent GB-1400499-A (GB)
Title: Synchronous electrical machines
IPC: H02P6/14
Filed: 1972-08-14
Abstract: 1400499 Electric motor supply circuits; commutating inverters SIEMENS AG 14 Aug 1972 [17 Aug 1971] 37907/72 Headings H2F and H2J  At start-up of a synchronous electrical machine in which current is sequentially supplied to the windings by a group of thyristors, the latter are forcibly commutated by a circuit comprising a capacitor C in series with an auxiliary thyristor p. The synchronous motor shown has four stator windings energized sequentially through thyristors p 1 -p 4 . On commutating from p 1  to p 2 , for example, auxiliary thyristor p is triggered simultaneously with p 2 , C which is initially charged to a negative voltage by source U H , discharges through p 1  to reduce the thyristor current to zero, p 1  is turned off, C is then positively charged from the supply and p 2  begins to pass the motor current through its associated winding. C then discharges again through the diode D, thyristor p 2  and associated stator winding. Finally C is recharged from source U H  to its initial negative voltage, ready for the next commutation. In a modification, Fig. 1b (not shown), in which the commutating thyristors are arranged as a 3-phase bridge inverter, a separate starting circuit (C, p, D, U H ) is provided for each half of the bridge. In both embodiments the thyristors are commutated by the machine back e.m.f. above about 20% of rated speed.
Patent GB-1027362-A (GB)
Title: Process of recovering fluorine, sodium, and aluminium compounds from wastes from aluminium furnaces
IPC: C01F7/54
Filed: 1963-09-26
Abstract: Cryolite is precipitated in two stages which may be continuous from the alkaline (e.g. NaOH) back solution of furnace wastes from the melt electrolysis of Al2O3 in molten cryolite, in the first stage from a basic solution using an HF-containing solution and then from an acid solution using an AlF3-containing solution. The first precipitation is done preferably at pH 7.5-13 by adding tower acid, i.e. the aqueous liquid from washing waste gases from electrolytic Al production furnaces.  After removal of cryolite, the mother liquor contains a large amount of NaF which is precipitated in the second stage as cryolite preferably at a pH 2-6.5 using tower acid to which has been added Al(OH)3 to form AlF3.  The residual mother liquor is separated from the cryolite and may be recycled to the leaching process, preferably after CO2 stripping, with addition of further NaOH.  The precipitating agents may be added in a continuous stream to a continuous stream of leach solution. The pH may be controlled by conventional means.
Patent GB-972828-A (GB)
Title: Improvements relating to bale openers
IPC: D01G7/04
Filed: 1961-10-24
Abstract: 972,828. Bale opening machines. MASCHINENFABRIK RIETER A.G. Oct. 24, 1961 [Oct. 31, 1960], No. 38044/61. Heading D1N. A bale opening machine with rotary disc tearing members within a casing and a pneumatic transport channel 16 connected to the casing through an intermediate housing 14 has a rotary bladed member 19 in the housing for transferring fibres to the channel 16. An air inlet is provided at the end of the channel 16 away from the fibre outlet.
Patent GB-1066888-A (GB)
Title: Improvements in hay harvesting machines
IPC: A01D78/10
Filed: 1964-09-18
Abstract: 1,066,888. Haymaking machines. FELLAWERKE G.m.b.H. Sept. 18, 1964 [Jan. 22, 1964], No. 38276/64. Heading A1F. A rotary rake head haymaking machine in which a frame member 1 suports a number of rotating heads 3 is characterized in that at least one tine arm 10 of the outermost heads is detachable from its associated head to lessen the width of the machine for transport. In Fig. 1 the arm 10 is held in a sleeve 11 by a pin 17. A holder for the detached arms is provided on the frame member 1 and is arranged so that the detached arms engage the heads to stop them rotating. In the embodiment of Fig. 8 (not shown), the tine arm 10<SP>1</SP> is pivoted to be movable through 90 degrees and is held in its working position by a catch 33, and in its transport position by a pin 29. In the embodiment of Fig. 10 (not shown) the arms 8 are all secured to a U-shaped plate 37 which is detachably engaged with the driving shaft 5 of the head with the co-operation of a pin 43.
Patent GB-375281-A (GB)
Title: Improvements in and relating to containers for fragile articles
IPC: B65D5/50
Filed: 1930-12-19
Abstract: 375,281. Containers for incandescent lamps &c. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fuller, C. T. ; 2067, Hanover Road, Cleveland Heights, Ohio, U.S.A.) Dec. 19, 1930, No. 38344. Convention date, Dec. 21, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 18 and 94 (i).] A packing container for fragile and other articles, e.g. glass articles such as incandescent lamps, vacuum tubes, and other electrical devices comprising sealed containers comprises an outer container 10, e.g. of cardboard, containing articles 11 each contained in an individual wrapper 12 preferably comprising a corrugated paper lining 13 and adapted to be expanded by the bulb. The outer container has tabs 14, 15, 16 whose ends engage the inner face of a side of a wrapper 12.
Patent GB-1417210-A (GB)
Title: Electromagnetic pumps
IPC: H02K44/06
Filed: 1973-08-15
Abstract: 1417210 Pumps operating by electromagnetic interaction with fluids INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 15 Aug 1973 [16 Aug 1972] 38651/73 Heading H2A An electromagnetic pump comprises a rod shaped member 7 of ferritic material disposed within and substantially parallel to a tube 1 so as to form between the member and tube a substantially annular flow passage 8, and a magnetic circuit disposed outside the tube, the circuit being arranged, in use, to pass a magnetic field across an electrically conductive fluid in the flow passage and thereby cause the fluid to move along the flow passage, the tube 1 being closed at one end 2 and the rod shaped member 7 being hollow. The fluid enters the pump at 4, is propelled along the flow passage and leaves through the hollow member 7. The magnetic circuit comprises six angularly spaced, axially extending, slotted, laminated cores 12 and a plurality of annular coils 15, each coil being located in the corresponding slots of all six cores. The coils are made of oxide insulated aluminium strip.
Patent GB-1057425-A (GB)
Title: Improvements in and relating to radiation detectors
IPC: G01R29/08
Filed: 1964-09-22
Abstract: 1057425 Testing micro-wave equipment MICROTHERM Ltd 22 Sept 1964 [30 Sept 1963] 38690/64 Headings G1U U5T1B U5T2A U5T2C and U5P18 Apparatus for detecting when radiation from micro-wave equipment exceeds a predetermined safety level comprises a gas discharge tube 10 provided with conductors 18, 20 forming a half-wave dipole at the radiation frequency and coupled via a transformer 28 to a transistor audio-oscillator 44. The oscillator 44 effects a preliminary ionization of the tube 10 so that when the R.F. energy is coupled into the tube via the dipole the ionization is increased and shifts into the arc glow region which is characterized by a change in colour of the glow. To increase the forward pick-up of the dipole a reflector plate 29 may be provided.
Patent GB-1519745-A (GB)
Title: Extrusion of pyrotechnic compositions and screw extruder therefor
IPC: B29C48/03
Filed: 1976-09-17
Abstract: 1519745 Mixing screws SOC NATIONALE DES POUDRES ET EXPLOSIFS 17 Sept 1976 [25 Sept 1975] 38708/76 Heading B1C [Also in Division B5] A plasticised nitrocellulose composition containing water is extruded from a screw extruder including a preliminary zone 6 receiving the composition at an extruder inlet 2 and comprising a helical thread; a compacting zone 7 comprising e.g. three, eccentric and angularly staggered discs; a throttling zone 8 comprising either discs of a diameter slightly less than the screw bore, or reversed pitch threads of a closer pitch than zone 6 and which may be interrupted; a draining zone 9 comprising threads of a coarser pitch than zone 6 and a barrel outlet 10 for draining water; and at least one, and preferably two sequential downstream zones which each comprise sequences of a mixing and shearing zone 11, and 16, effecting gelatinisation of the composition; a throttling zone 12, and 17; similar to the zone 8 a drying zone 13, and 18, connected at 14, and 19, to a vacuum pump for drying water from the composition by evaporation; and a zone 21 in which the composition pressure is progressively increased prior to extrusion from the die 3. A recompression zone 15, and 20, preferably follows each drying zone 13, and 18. The extruder preferably comprises a pair of non-interengaging screws which rotate in the same direction in cylindrical bores. The shearing zones 11 and 16 respectively comprise five and eight discs offset angularly along a helical path of one turn. Each drying zone 13, and 18, comprises a helical thread, of courser pitch than that of the recompression zone 15, and 20. Preferably the vacuum applied is less than 200 mm Hg. e.g. 90, in zone 13, and in zone 18 is less than 60 e.g. 20. The extruder is regulated thermally by water circulated through the screw in two separate circuits, a heating circuit 22, 23 circulating e.g. at 80, along a peripheral helical path of the screw, and a cooling circuit 24, 25 circulating e.g. at 60, axially of the screw for zone 21 and the conical screw tip 22. The zones each comprise elements keyed to the screws. With a propellant composition, feed thereof is effected from a blade mixer to the inlet 2 via a constant flow feed device which is alternatively operable to feed an inert, non- nitrated cellulose at the commencement and termination of extrusion.
Patent GB-1488970-A (GB)
Title: Two-layer sintered contact member for electrical switchgear
IPC: H01H1/04
Filed: 1975-09-22
Abstract: 1488970 Switch contacts SIEMENS AG 22 Sept 1975 [30 Sept 1974] 38864/75 Heading H1N A sintered contact for an electric switch comprises a first contact layer of dispersion hardened silver with a metal oxide hardening additive and a second solderable carrier layer of a dispersion hardened metal such as silver or copper with a metal oxide as hardening additive. Suitable hardening additives for the first layer are one or more oxides of Cu, Zn, Cd, Sn, Pb, In, La, Ce, Sb, Bi, Te, Mo, Mn, Ca, Fe, Co and Ni. With a second layer being mainly silver suitable hardening oxides are of Mg, Ca, Al, Si, Ti, Zr, Cr, Fe, Co and Ni. With a second layer being mainly copper the oxide is selected from the metals Mg, Al, Ti and Zr. Numerous examples with powder proportions and sintering pressures and temperatures are given.
Patent GB-1097796-A (GB)
Title: Improvements in or relating to hose couplings
Inventor: COPE NORMAN DALE
IPC: F16L33/24
Filed: 1965-09-11
Abstract: 1,097,796. Hose couplings. SINGLEHURST ENGINEERING Ltd. Sept. 6, 1966 [Sept.11, 1965], No. 38892/65. Heading F2G. In a re-usable coupling, the socket 1 has a plain cylindrical clamping section 3 between the inner smaller end of a tapered mouth 2 and a recess 5 of a diameter larger than that of the section 3. A screw-thread 6 on the taper which fades away at the adjacent end of the section 3 may extend the full length of or part way along the taper and fade out towards the end of the mouth 2. The socket is screwed on to a hose 16 and a nipple 13 is screwed into the socket to clamp the hose between the nipple and section 3.
Patent GB-967220-A (GB)
Title: Improvements in or relating to folding cartons
Inventor: KELLY DOUGLAS ARTHUR JOHN
IPC: B65D5/10
Filed: 1961-10-31
Abstract: 967,220. Cartons. TAYLOWE Ltd. Oct. 24, 1962 [Oct. 31, 1961], No. 38908/61. Heading B8P. A self-locking end closure for a tubular carton which is erected from a flat-folded blank is constituted by flaps on the ends of side panels 1-6, said flaps comprising the pairs of diametrically opposed hingedly-connected flaps 1a, 2a and 4a, 5a and two single flaps 3a and 6a which are secured by adhesive to extensions 2b and 5b of the pairs of flaps. The flaps are secured while they are in a horizontal position, and when the blank is flat folded are folded inwards and upwards against the inner faces of their related panels. The flaps are automatically swung down to their operative position by the extension of the blank to tubular form. Small slits 10 may be provided at the junction of the flaps 1a, 2a and 4a, 5a to interengage and lock the base structure in the operative position.
Patent GB-1389348-A (GB)
Title: Method of packaging laminar electrodes and packages thereof
IPC: D04B11/32
Filed: 1972-08-21
Abstract: 1389348 Packaging laminar electrodes SPETSIALNOE KONSTRUKTORSKOE BJURO TYAZHELYKH TSVETNYKH METALLOV PRI INSTITUTE "GINTSVETMET" 21 Aug 1972 38924/72 Heading B8C Laminar electrodes 1 each having at least one hole 2 are formed into a package by stacking the electrodes with their planes parallel and their holes in alignment, passing a packaging element 11 of the same material as the electrodes through the aligned holes, pressing the electrodes together, and bending the element 11 at opposite ends to hold the electrodes together. The holes 2 may be trapezoidal and have a bent edge portion 3, as shown, or may be rectangular. Two holes 2 may be provided and may be turned through an angle of 180 or 90 degrees to each other, or two pairs of holes may be provided which are turned through 180 degrees with respect to each other. The rectangular electrodes may be stacked directly on top of each other or a part 8 or parts of the stack may be turned through 90 degrees with respect to another part 9 of the stack, as shown. When a faulty electrode is cut into two, the good halves may be packaged by forming at least two twin stacks and orientating these at right angles to each other. The packaging element may be S-shaped, as shown, may be U- shaped or may have U-shaped bases embracing the edge portions 3 and forming supporting legs. One U-shaped packaging element having its ends bent over may be passed through two sets of aligned holes. The electrodes may be cathodes.
Patent GB-1182867-A (GB)
Title: Cigarette Making Machine.
Inventor: HERRMANN JOHANNES
IPC: A24C5/18
Filed: 1968-08-15
Abstract: 1,182,867. Cigarette-making machines. TABAK-UND INDUSTRIEMASCHINEN DRESDEN VEB. 15 Aug., 1968. No. 38990/68. Heading A2C. In a continuous rod cigarette-making machine, cut tobacco is pneumatically fed to a suction feed wheel 1 which wheel, together with its lateral limiting walls 5, 6 as a sub-assembly, is journalled for rotation about a swivel spindle 14 so located relatively to the formed tobacco rod 35 that it may be swung out of its operating position whilst remaining connected to its drive mechanism. The spindle 14 also acts as a driving shaft and is drivingly engaged through gears with the feed wheel 1 and with the main driving shaft of the machine. The wheel 1 sub-assembly also includes a trimmer 32. A hollow shaft 3 of the wheel 1 is connected to a suction fan (not shown) by a flexible tube 8. A stop screw 22, mounted on the subassembly, determines the operating position of the wheel 1 against a stop 20 that is fixedly mounted to the main frame of the machine. A flap 25 is provided in a feed passage 23 of a pneumatic tobacco distributor. When the machine is stopped during production, the flat 25 is first opened to clear accumulations of tobacco in the passage 23, the feed wheel sub-assembly swung to the position shown by broken lines in Fig. 1 and the drive briefly engaged to remove any blockage of tobacco in the machine. In the swung out position ready access is available for adjustment or servicing of the machine, including replacement of worn conveyer bands or replenishing the supply of wrapping paper 27. In another embodiment, (Fig. 3 not shown), the pivot spindle 14 is arranged at right angles to the tobacco rod 35 and not parallel thereto as described above.
Patent GB-1475017-A (GB)
Title: Air conditioning module
IPC: F25B21/02
Filed: 1974-09-06
Abstract: 1475017 Peltier cooling module COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 6 Sept 1974 [18 Sept 1973] 39024/74 Heading H1K A Peltier heating/cooling module for air conditioning comprises an array of P and N thermoelements connected in alternating sequence via conductive bridges with hollow ribs, the bridges together constituting hot and cold plates disposed on opposite sides of the array, the ribs in each plate being arranged parallel to one another and facing inwards towards those of the other plate. In one embodiment (Figs. 1 and 2 not shown) the ribs, which are corrugated along their lengths, form parallel channels in the outer faces of the hot and cold plates which channels are disposed vertically in operation to encourage convection currents. In an alternative structure (Fig. 3 not shown) the channels in one plate are orthogonal to those in the other. Two such structures may be arranged back to back in the wall between two rooms with the channels facing the rooms extending vertically; while the space between the horizontally extending inward facing channels is force ventilated. The space between the hot and cold plates may be filled with foamed polyurethane to improve heat and sound insulation and a channel provided at the lower end of the channels to collect condensation.