baber/WOPTO huggingface dataset:
Patent GB-1224175-A (GB)
Title: Heat storage devices
Inventor: HARTLEY SYDNEY BENJAMIN
IPC: F24H7/00
Filed: 1967-10-09
Abstract: 1,224,175. Heat storage apparatus. ALBRIGHT & WILSON (MFG.) Ltd. 4 Oct., 1968 [9 Oct., 1967], No. 46142/67. Addition to 1,034,929. Heading F4U. Heat storage apparatus comprises, in conjunction with heating means, composite members each having an inner portion of an ironphosphorus alloy containing from. 2 to 30% phosphorus, and an outer portion consisting of a fired refractory material stable at a temperature in excess of 500‹ C. The preferred phosphorus content is from 6 to 10% and preferred refractory materials, are listed. As shown, the inner portion 11 and the refractory surround 12 are themselves surrounded by thermal and electrical insulation 13, e.g. glass wool within a steel canister 14. An insulated electric heating coil 15 is wound around the canister. Alternatively (Figs. 1 and 2, not shown) the insulation 13 and canister are omitted and the heating element is located in a channel formed in an outer face of the refractory surround. The iron-phorous alloy may be poured into the surround in the molten state and allowed to solidify or may be pre-cast or machined to the desired shape. The surround may be lined with a releasing agent, e.g. carbon black, or thermal insulation, e.g. asbestos or dicalcium silicate before insertion of the alloy. The composite members may be mounted in a casing having air inlets and outlets and a fan.
Patent GB-1146513-A (GB)
Title: Systems for recovering loads from aircraft and space craft
IPC: B64D25/10
Filed: 1966-10-17
Abstract: 1,146,513. Ejection seats. STENCEL AERO ENG. CORP. 17 Oct., 1966 [21 Oct., 1965], No. 46390/66. Heading B7G. [Also in Division F2] A load ejectable from an aircraft to be collected by parachute comprises a load carrier 1 (e.g. an ejection seat) and load P, a reaction motor 3, a brake 5 (see Division F2) and line 4 assembly, wherein the line of action of the thrust F t  from the motor 3 acts at a distance e from the centre of gravity CG, and of the brake and line assembly F r  at a distance to provide opposing moments, and wherein the line has initial slack, 4a, 4b, 4c and loops in pack 9, the relative durations of action being in accordance with Fig. 3, and wherein the distance x increases with the initial rotation of the load P and carrier 1 due to the offset thrust F t . The line 4, of limited length, may be played out of a store 10, through the brake 5 and an eye 8 on a bridle 7. This may consist of a bipod 25, 26 pivoted to two spaced brackets 28, 30 at the front of the carrier 1 and a steel rope 39 anchored at the rear 40, so that the bridle may be folded under the carrier prior to use. The motor thrust F t  and the braking thrust F r  may be adjusted to ensure that at no time does the component of F r  parallel to the spine of the pilot P exceed 90% of the corresponding component of F t .
Patent GB-1536617-A (GB)
Title: Pulse summing devices
IPC: H03K21/40
Filed: 1977-11-08
Abstract: 1536617 Counters SIEMENS AG 8 Nov 1977 [22 Nov 1976] 46445/77 Heading G4D A totalizing counter, e.g. accumulating totals of price or quantity in a petrol dispenser, has electronic stages for the low orders and an electromechanical counter for the high orders, means being provided to automatically set the electronic stages, which lose their count during a power failure or disconnection, to a predetermined value upon restoration of the supply. If the electromechanical counter records litres and the electronic stages record hundredths then the latter are set to 50 so that on average over many disconnections the total recorded remains accurate.
Patent GB-1478989-A (GB)
Title: Slide rules
IPC: G06G1/04
Filed: 1974-10-29
Abstract: 1478989 Slide rule H RIEHLE 29 Oct 1974 [22 Nov 1973] 46655/74 Heading G4B In a slide rule of the type having a flat graduated slide 14 slidable between and viewable through a pair of scale plates, construction is facilitated by forming a frame member as two identical interlocking members 19 in each of which one of said plates 9 is locatable; said members and plates being interengaged to form a slide structure wherein said slide and preferably at least one transparent cursor member are slidably housed. As shown, identical slide members 2 (Figs. 2, 3) each incorporate a holding groove 10 and shoulder portion 11 wherein scale plates 9 (Figs. 1, 5) are locatable. The members 2 are relatively orientated at 180 degrees and interlocked in the plane of Fig. 2 via elongated tenons 4, 8 and mortise cavities 6, 7 to form a slide structure (Fig. 5) wherein a tongue member 14 viewable through scale plate windows 13, together with at least one cursor member, are housed. The slide rule is formed of a synthetic plastics resin, and adhesive may be used to further secure the mortise and tenon joint.
Patent GB-1022656-A (GB)
Title: Improvements in or relating to gelatin compositions
Inventor: YAMAMOTO NOBUO
IPC: G03C1/30
Filed: 1963-11-28
Abstract: Gelatine is hardened by the addition of an alkali metal, alkaline earth metal or quaternary ammonium salt of 2 : 4-dichloro-6-hydroxy-s-triazine. Examples are given of the use of the sodium, potassium and the tetramethylammonium salts.
Patent GB-1081735-A (GB)
Title: Optical pattern follower
IPC: G06K11/02
Filed: 1965-11-08
Abstract: 1,081,735. Transistor pulse circuits. CANADIAN WESTINGHOUSE CO. Ltd. Nov. 8, 1965 [April 17, 1965], No. 47186/65. Heading H3T. [Also in Divisions G1 and H2] A photo-electric line follower comprises capacitors 39 and 40 which are periodically charged through transistors 41, 42 rendered conductive by a pulsating D.C. signal from transistor 45. In between chargings, the capacitors are discharged by the outputs of the balanced D.C. amplifier 36, 37 at rates proportional to the illumination of the phototransistors. When the voltage on the capacitors has fallen to a preset level, the unijunction transistors 56, 57 conduct and trigger the siliconcontrolled rectifiers 66, 67. D.C. is thereby fed to a steering motor during the period after the first S.C.R. has struck and before the other strikes. If the phototransistors are equally illuminated the S.C.Rs. strike together and the motor remains de-energized, but any difference in illumination results in the motor being energized to rotate the phototransistors in a sense tending to equalize the illumination.
Patent GB-1514110-A (GB)
Title: Process for preparing tetrafluoroboric acid
IPC: C01B35/06
Filed: 1976-11-12
Abstract: 1514110 Tetrafluoroboric acid HOECHST AG 12 Nov 1976 [15 Nov 1975] 47222/76 Heading C1A Tetrafluoroboric acid is obtained as an aqueous solution by reacting a gas containing HF (which may be a gas obtained in the fluorination of organic compounds) with a boron-oxygen compound, containing only B+O or B+O+H, in the solid state, e.g. H 3 BO 3 , HBO 2  or B 2 O 3 . If the gas contains HCl, some may pass into the product solution, and may be removed by blowing with an inert gas, e.g. air, oxygen, or nitrogen, or the residual gas after removal of HF and HCl.
Patent GB-1305471-A (GB)
IPC: H01L29/00
Filed: 1970-10-05
Abstract: 1305471 Semi-conductor devices SONY CORP 5 Oct 1970 [6 Oct 1969] 47260/70 Heading H1K A negative impedance characteristic including two distinct stable portions 8I, 8II, Fig. 7, before the negative impedance portion 8N is produced between two electrodes M 1 , M 2 , Fig. 8, situated on respective impurity-doped regions D 1 , D 2 , preferably separated by a distance greater than the diffusion length of either type of charge carrier, in a relatively high resistivity semi-conductor substrate S. The regions D 1 , D 2  are arranged so as to inject carriers of opposite polarities into the substrate S, and the negative impedance characteristic is obtained by the action of the depletion regions associated with reverse-biased junctions J 3 , J 4  between the substrate S and respective impurity-doped regions D 3 , D 4  situated on opposite sides of the main current path between the first regions D 1 , D 2 . The Specification includes an explanation of the effect for various combinations of conductivity-type for the various regions; viz. (a) S-# type; D 1 , D 3 -P + type; D 2 , D 4 -N type: (b) S-# type; D 1 , D 3 , D 4 - P+ type; D 2 -N type; (c) S-v type; D 1 - P+ type; D 2 , D 3 , D 4 -N type. Appropriate biasing arrangements are disclosed for each case. In the Fig. 8 embodiment the regions D 1 - D 4  are arranged concentrically by diffusion into a # type Si body S having a resistivity of greater than 10-15 #cm. The region D 2  is annular and is separated from the central region D 1  by two arc-shaped regions D 3 , D 4 , the main current in the device flowing between the regions D 1 , D 2  through the gap between the regions D 3 , D 4 . The body S is supported mechanically at its lower surface by a polycrystalline Si substrate grown on the body S over a suitable seeding layer such as amorphous or polycrystalline SiO 2  or a sand-blasted surface of the body S. An insulating layer of SiO 2 , Si 3 N 4  or SiN overlies the upper surface of the body S. Other configurations of the various regions are disclosed, Ge and intermetallic compound semi-conductors are also referred to.
Patent GB-978482-A (GB)
Title: Improvements in or relating to road forms and like shuttering
Inventor: PETCH JEFFREY
IPC: E01C19/50
Filed: 1962-12-15
Abstract: 978,482. Shuttering for casting roads. JAMES GRUNDY & CO. Ltd. Dec. 3, 1963 [Dec. 15, 1962], No. 47384/62. Heading E1S. A tie rod for connecting adjacent slabs of concrete road is bent at right angles and one arm 17a is held in a recess in the moulding face of a road form 10 by loops 19 of wire while concrete is cast round the other arm 17b the arm 17b being bent out subsequently to be cast in the next road section. The recess may be formed by angles 15 welded etc. to the form or by spaced lugs.
Patent GB-1079880-A (GB)
Title: Recovery of salts from brines
IPC: C01D3/06
Filed: 1965-11-10
Abstract: KCl is recovered from brines containing NaCl and KCl by contacting the brine, at above and KCl by contacting the brine, at above 500 DEG F. and at a pressure sufficient to maintain the brine in liquid form, with an organic liquid which will extract more H2O at a higher temperature than at a lower temperature in proportions such that H2O is extracted and NaCl crystals are formed in the conc. brine, separating off the organic phase, separating the crystals from th conc. brine, and then cooling the conc. brine and separating therefrom the KCl crystals which are formed.  The organic liquid may be a hydrocarbon having, e.g. 6-30 C atoms per molecule, or an alcohol, ketone or ether having e.g. 8-12 C atoms per molecule.  The separated organic phase may be heat-exchanged with the incoming aq. extract, and the heated organic phase then recycled to the extraction.  The brine may be passed countercurrent to hot organic liquid to heat the brine and then extracted with further organic liquid at above 500 DEG  F.  The conc. brine may be cooled by countercurrent contact with organic liquid which is then recycled to the extraction step. H2O may be added to the conc. brine to prevent the precipitation of NaCl.  The preferred pressure is 1000-2000 p.s.i.g.  The aq. organic extract may be cooled to separate it into an aq. and an organic phase. This aq. phase may be made potable by passing it through activated charcoal to remove remaining organic liquid.
Patent GB-1059088-A (GB)
Title: Improvements in and relating to frequency control of signal generators
IPC: H04N5/06
Filed: 1964-11-25
Abstract: 1,059,088. Frequency &c. detection etc.; circuits employing magnetic storage elements; pulse modulation circuits. COMPAGNIE DES COMPTEURS. Nov. 25, 1964 [Nov. 29, 1963], No. 47935/64. Headings H3A, H3B and H4L. A multivibrator having crosscoupled windings on a magnetic core of rectangular hysteresis loop has its output, after appropriate frequency division, phase compared with a reference wave to produce a D.C. control voltage which controls the output frequency and phase of the multivibrator by varying the rate of magnetization of the core. The multivibrator comprises transistors 12A, 12B with collector windings 11A, 11B on a magnetic ring T 0 cross-coupled to the bases through ring windings 13A, 13B, and the frequency, nominally 50 Î 5<SP>4</SP> cycles per second, varies proportionally with the D.C. control voltage U applied through emitter follower 10 to the collector circuits. A television line synchronizing frequency SL of rectangular waveform may be derived from an output winding 14 on the ring and applied through emitter follower 15 and a switching transistor 20 1 passing only one polarity of the waveform, to a division-by-five circuit I also having a magnetic ring T 1 with rectangular hysteresis loop. The input winding 21 1 has onefifth the number of turns of winding 14 and therefore only after five pulses from ring T 0 is the ring T 1  switched to its 1 state. The trailing edge of the fifth pulse produces a large voltage across winding 21 1  which through the reaction winding 24 1  renders conducting a normally blocked transistor 25 1  to energize a zero return winding 23 1  until the reaction coupling of windings 23 1 , 24 1  effects return of the T 1  core magnetization to state O. Transistor 25 1  is then again blocked by its positive base bias. A frequency division-by-five similarly operates in three later stages II, III and IV, each having output windings 22 coupled through normally blocked transistors 20 2  to an input winding 21 2  of a later stage having one-fifth the number of turns. Finally, an output S1 from stage IV at 50 cycles per second is applied to a phase discriminator 3 also receiving a 50-cycle per second reference input from the television frame scanning oscillator, or from a mains A.C. supply. The discriminator output, amplified at 4 to produce the control voltage U determines the multivibrator frequency so that the line frequency output SL is synchronized in frequency and phase with the television camera frame frequency or with the A.C. main frequency.
Patent GB-1067277-A (GB)
Title: Method for preparation of thorium dicarbide and thorium-uranium dicarbide particles
IPC: C01B31/30
Filed: 1963-12-05
Abstract: Thorium dicarbide particles may be prepared by mixing a thorium oxide sol having a nitrate ion concentration of at least 10-4 molar in a nitrate : Th molar ratio of 0.05 to 0.15 with finely divided carbon in a C : Th molar ratio of at least 4 : 1, converting into solid thorium oxide-carbon particles of a predetermined size and shape, and firing the particles in an inert atmosphere at 1400 DEG  C. or above. The conversion into solid thorium oxide-carbon may be by shaping the mixture into spherical solid agglomerates and dehydrating, or by evaporating to a gel and comminuting.  The gel may be dried at 90-130 DEG C. at 130 DEG C., 12-24 hours drying are required.  The fines produced may be recycled by redispersing in dilute HNO3.  In a modification the starting sol may be prepared by precipitating a haze of solid hydrous oxide in an aqueous nitrate system with NH4OH, digesting for at least 10 minutes, adding carbon in above proportions, then adding sufficient NH4OH to complete the precipitation, adjusting the nitrate : Th ratio to 0.5 to 1.5, digesting until a carbon containing sol is formed.  The U proportion in the sols may be up to 10%. Spherical (Th-U) C2 particles may be prepared by dispersing thorium oxide in nitrate in above proportions, adjusting the pH to 3.5-4.0 with NH4OH; digesting at 80-100 DEG C. until a sol is formed, mixing the sol with finely divided carbon in above proportions, forming into solid spherical particles and firing at 1400 DEG C. or above. The diameter of the fired particles may be 100-250 microns. Thorium oxide may also be prepared by steam denitration of thorium nitrate, or hydrated nitrate, by thermal denitration of the nitrate, or by calcination of the oxalate.  U may be incorporated as uranyl nitrate, as a dispersible oxide, i.e. hydrated UO3 or by precipitated ammonium diuranate.  The inert atmosphere may be of argon.  The oxide may be in concentration up to 5 molar. The NH4OH core may be 3-6 molar, thorium nitrate 0.1-1.0 molar, nitrate ion 10-3 to 10-4 molar.  The carbon may have a mean particle size not exceeding 350 angstroms, and a surface area of at least 600 m.2/gm.
Patent GB-1098153-A (GB)
Title: Mineral oils resistant to oxidation
IPC: C10G67/08
Filed: 1965-11-12
Abstract: A process for the production of a refined mineral oil comprises the steps of hydrogenating a light distillate oil having a boiling-point of from 120 DEG  to 310 DEG  C. under a pressure of 6 mm. of mercury under the following conditions:- .Temperature ( DEG C.).280 -370 .Pressure (bars).20 -150 .Spacial velocity.0.3- 3.5 .Volumes of hydrogen (re. .duced to N.T.P.) per. .volume of oil.100 -500 deriving a raffinate of reduced aromatic hydrocarbon content by solvent extraction of a light distillate oil having a boiling point of from 120 DEG  to 310 DEG  C. under a pressure of 6 mm. of mercury, hydrogenating the raffinate under less severe conditions than the light distillate oil, and combining the hydrogenated light distillate oil with the hydrogenated raffinate.  The solvent may be phenol, furfural, sulphur dioxide, or propane-cresol; the hydrogenation catalyst may be cobalt molybdate on alumina. The product is oxidation-resistant, of low dielectric loss and suitable for electrical purposes.
Patent GB-1504759-A (GB)
Title: 8-allyl-8-hydroxytricyclo (5,2,1,02,6) decane and its use in perfume compositions and as a perfume component
IPC: A61K8/33
Filed: 1975-11-26
Abstract: 1504759 Perfumes NAARDEN INTERNATIONAL NV 26 Nov 1975 [27 Nov 1974] 48568/75 Heading A5B [Also in Division C2] Perfume compositions comprise, with conventional perfume ingredients, 8-hydroxy-8- allyltricyclo [5, 2, 1, 0<SP>2, 6</SP>] decane and optionally o-hydroxybenzyl ethyl ether.
Patent GB-970008-A (GB)
Title: Foamed cellular refractory body and method of production
IPC: C03C11/00
Filed: 1962-12-24
Abstract: Cellular refractory bodies are produced from fusible, glassy, crystalline alkali metal oxide-alumina-silicate natural materials having viscosities of at least 105 poises at 1050 DEG  C. and not ever 107 poises at 1500 DEG  C., a liquidus viscosity greater than 105 poises and a liquidus temperature below an effective cellulation temperature within the range 1059 DEG -1500 DEG  C. by mixture with chemically inter-reactable cellulating agents oxygen stable below 1050 DEG  C. but reacting to produce a foam while the material is within the viscosity range 105-107 poises, depositing a layer of the mixture on a refractory bed, cellulating the layer by heating to a temperature to give a viscosity between 105 and 107 poises and holding at the temperature to produce the required degree of cellulation but for not longer than 16 hours, cooling and annealing. Materials specified are granite, obsidian, pumice, pearlite and pitch stone, whilst the cellulating agents are a mixture of a reducing agent e.g. metals, metal carbides and metal sulphides; with an oxidizing agent e.g. a sulphate of an alkali metal or alkaline earth metal. Slag or silica may also be included.
Patent GB-1058967-A (GB)
Title: Process for the production of wax-like ethylene polymers of low molecular weight
Inventor: RATZSCH MANFRED
IPC: C08F10/00
Filed: 1965-11-16
Abstract: Wax-like ethylene polymers of low molecular weight are prepared by polymerizing ethylene at 100 DEG  to 200 DEG  C. and greater than 500 atmospheres in the presence of oxygen and/or a free radical forming initiator, 5 to 30 volume per cent of hydrogen and 0.5 to 12 volume per cent of one or more chain transfer agents. Specified initiators are di-t.-butyl peroxide, dibenzoyl peroxide, dilauroyl peroxide, isovaleroyl peroxide, t.-butyl perbenzoate, azodiisobutyronitrile and 2,21-dicyanazo benzole. Specified chain transfer agents are olefins, paraffins, chlorinated hydrocarbons, alcohols, aldehydes and ketones. The products may be used in the manufacture of inks, polishes, candles, sealing compounds, anti-corrosion agents and textile finishes, and in the paper industry.  In examples ethylene is polymerized in the presence of hydrogen and ethane and/or propane and or oxygen mixtures of dilauroyl peroxide and di-t.-butyl peroxide or of t.-butyl perbenzoate and di-t.-butyl peroxide dissolved in paraffin oil.
Patent GB-1307377-A (GB)
Title: Ignition timing change-over device in combination with a spark advance mechanism having a rotatable timing governor plate
IPC: F02P5/155
Filed: 1970-10-15
Abstract: 1307377 Timing ignition NISSAN MOTOR CO Ltd 15 Oct 1970 [22 Oct 1969] 48988/70 Heading F1B An ignition timing changeover device in combination with a spark advance mechanism having a rotatable timing plate 23 comprises solenoid means 33 including a plunger 34 engaging the timing plate and a switch 35 connected in series to the solenoid means. When the switch 35 is closed to start the engine the solenoid 33 is energized and the plunger 34 is projected to rotate the timing plate 23 and advance the ignition. In a modification (not shown) the plunger 34 is controlled by a thermosensitive device.
Patent GB-1120670-A (GB)
Title: Improvements in or relating to looms, particularly ribbon looms
IPC: D03D35/00
Filed: 1966-11-02
Abstract: 1,120,670. Ribbon looms. J. MULLER. 2 Nov., 1966 [8 Nov., 1965], No. 49033/66. Heading DIE. In a ribbon loom, the weft bobbin is disposed in the warpwise direction in a cylindrical shuttle 20 which is picked and arrested by picking sticks 25, 26. The shuttle is provided with magnetisable hoops 20, and the platforms 23, 24 on which it comes to rest contain permanent or electro-magnets.
Patent GB-1131839-A (GB)
Title: Improvements in or relating to cement and soil stabilization composition
IPC: C04B28/26
Filed: 1966-11-03
Abstract: 1,131,839. Silicate and clay composition. DIAMOND ALKALI CO. 3 Nov., 1966 [5 Nov., 1965], No. 49420/66. Heading C3N. [Also in Division E1] A composition comprises a mixture of, (a) an alkali metal silicate, and an amide gelling agent, and (b) clay. The alkali metal silicate has alkali metal oxide :SiO 2  weight ratio of from 1:3À0 to 1:4. Preferred ingredients are sodium silicate, formamide and bentonite. (a) may also contain a salt of an alkali metal, alkaline earth metal, NH4<SP>+</SP>, Al, Cu or Zn, and HCl, H 2 SO 4 , HNO 3 , H 3 PO 4 , HF, or CH 3 COOH. There may be 14-600 g. clay per litre of aqueous solution of (a). (a) may contain 3-60% volume aqueous commercial alkali metal silicate containing 55-70% wt. water, and 2-30% volume amide. Additional water may be added. The composition may be placed in the cavity surrounding a well casing and allowed to solidify and form a seal; or it may be injected into a permeable earth stratum which is thereby stabilized.