baber/WOPTO huggingface dataset:
Patent GB-1500967-A (GB)
Title: Inflatable protector bag for vehicle safety device and method of producing same
IPC: B60R21/231
Filed: 1975-06-12
Abstract: 1500967 Crash restraint bags NISSAN MOTOR CO Ltd and IKEDA BUSSAN CO Ltd 12 June 1975 [28 June 1974 2 July 1974] 25190/75 Heading B7B An inflatable crash bag 46 when expanded has a generally tetrahedral configuration of four substantially ososceles triangular sheet portions 48, 50, 52 and 54 which are circumscribed by five edges 26, 56, 58, 60 and 62 at which the sheet portions are integral with one another and one edge 44 along which two sheet portions 52 and 54 are hermetically joined together. The triangular sheet portions are regular and congruent with each other. An opening 32 is formed in the vicinity of one vertex of the bag 46, such as by removal of the vertex C, and is surrounded by holes 34 for fixing of the bag on a steering wheel hub 66, Fig. 4, or on a dashboard (76), Fig. 8 (not shown), with an explosive inflation device 68 accommodated in the opening 32. To produce the crash bag 46, a flat bag 20, Fig. 2, is initially formed of two superimposed rectangular sheet portions 22, 22<SP>1</SP> which are joined integrally at three edges 24, 24<SP>1</SP>, 26 and open at one edge 28 defining free margins 30, 30<SP>1</SP>. As shown, the flat bag 20 is made by cutting an elongate blank 36 alongside two lateral seams 40. The mid-points M, M<SP>1</SP> of the margins 30, 30<SP>1</SP> are then taken and moved away from one another in directions S, S<SP>1</SP> until the halves of each of the bisected free margins meet each other to be hermetically joined forming the edge 44.
Patent GB-1393116-A (GB)
Title: Hard metal articles and methods of treatment thereof
IPC: C23C10/28
Filed: 1971-05-28
Abstract: 1393116 Sintered carbides bonded with cobalt ruthenium & asmium INTERNATIONAL NICKEL Ltd 26 May 1972 [28 May 1971 27 Aug 1971] 25263/72 and 40324/71 Divided out of 1393115 Headings C7D and C7F A cemented carbide article e.g. a cutting tool or tip in which the binder, at least at the cutting edge consists of Co together with an equal or lesser amount of Ru and/or Os. The cemented carbide consists of 97-80% WC, TiC, TaC or NbC with a weight ratio of Co:Ru of 1.5:1 to 6:1 or a weight ratio of Co:Os of 1:1 to 4:1. The article may be made by compacting and sintering a powder mixture of the carbide, Co, Os & Ru or by coating a green compact of the carbide and Co with a slurry of carbide, Co, Os and/or Ru and then sintering. Alternatively the green or sintered carbide - Co body may be coated with Ru and/or Os e.g. by electrolysis, plasma spraying, vanour deposition or from liquid bright Ru and diffusion at 1250-1400C.
Patent GB-1267323-A (GB)
Title: Injection type light emitting diode and method of making same
IPC: H01L21/208
Filed: 1970-05-26
Abstract: 1,267,323. Crystallizing gallium phosphide. HITACHI Ltd. 26 May, 1970 [28 May, 1969], No. 25330/70. Heading BIG. [Also in Divisions C4 and H1] A light-emitting diode comprises a p type substrate 1 of a III-V compound semiconductor such as Ga P having grown thereon an epitaxial layer 3 of n type Ga P containing a p type layer 2 formed by diffusion of p type dopant from the substrate 1 into the layer 3. Since the p type dopant, e.g. Zn, diffuses faster than unwanted contaminants such as oxygen the p-n junction between the layers 2 and 3 is uncontaminated and light emission therefrom is efficient and of the desired wavelength. The substrate 1 may be solution grown, and the epitaxial layer 3 may be vapour deposited. Preferably, however, the layer 3 is grown by liquid phase epitaxy, e.g. from a Ga solution saturated with Ga P and containing Te, Se, S or Sn as an n type dopant and nitrogen in InN or Ga N as a light emission augmenting agent. The epitaxial deposition may take place in a stream of hydrogen or hydrogen of argon, optionally containing ammonia as a further source of nitrogen dopant.
Patent GB-663181-A (GB)
Title: Improvements in and relating to control systems for electric heaters such as electric blankets
IPC: H05B3/34
Filed: 1948-09-29
Abstract: 663,181. Automatic temperature control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 29, 1948 [Oct. 1, 1947], No. 25386/48. Class 38 (iv). In an automatic temperature control system for an electric blanket wherein the heater 6is temperature-sensitive, a valve circuit is provided which is responsive to the resistance of the heater and is arranged to control a relay 12 so as to hold the heater circuit closed at its contacts 10, 11 until the heater reaches a predetermined temperature. The heater 6 is connected into one arm of a bridge circuit comprising fixed resistances 13, 15 and manually variable resistance 14. The bridge is fed from supply line 7, 8 and the output applied through a transformer 22 to the grid of a valve 24, the anode of which is fed from a rectifier 32. The output of the valve 24 is applied through a voltage double rectifier to the grid of an amplifier 33, the output from which controls the relay 12. In operation, when the supply is turned on, the relay 12 is not energized and the output from the bridge is large so that a large negative bias is applied to the grid of valve 33, and the relay remains deenergized. For the purpose of energizing relay 12, therefore, a motor 49, cam 48 and contacts 47 are provided, contacts 47 momentarily earthing the grid of valve 33 so that sufficient current flows to energize relay 12. Since the heater 6 is thereby connected, the output of the bridge falls and the negative bias is removed from valve 33, thereby allowing the relay 12 to remain energized. When the temperature of the heater 6 reaches the predetermined value, however, its resistance has increased sufficiently to cause the bridge output and thus the bias on valve 33 to be of such a value that the valve current is no longer sufficient to energize the relay 12. Relay 12 therefore, and heater 6, become de-energized. Contacts 47 are intermittently operated but the relay 12 will only remain energized again after the temperature of the heater has fallen below the predetermined value.
Patent GB-403191-A (GB)
Title: Improvements in rotary fluid clutch and variable gears employing cylinders and pistons
IPC: F16D31/02
Filed: 1932-09-12
Abstract: 403,191. Hydraulic transmission of power. DOPSON, W. E., 15, Thornton Road, Mortlake, London. Sept. 12, 1932, No. 25388. [Class 69 (ii).] Hydraulic power - transmission apparatus comprises radial cylinders A, Fig. 1, staggered to facilitate cooling and to permit the connecting rods P to be arranged side by side on a single throw crank N. The pistons are provided with non-return valves C, and communication between the outer ends of the cylinders and the crankcase is controlled by a plug valve F having passages G with V-shaped outer ends. The valve is turned by a slidable collar J, provided with a skew cut T engaging a fixed pin U. The control valve may be as shown in Fig. 4.
Patent GB-1180647-A (GB)
Title: Process for the Preparation of Basic Zirconium Sulphate and Products Resulting Therefrom
IPC: C01G25/02
Filed: 1967-06-01
Abstract: 1,180,647. Zirconium compounds. FABRIQUES DE PRODUITS CHIMIQUES DE THANN ET DE MULHOUSE. 1 June, 1967 [2 June, 1966], No. 25403/67. Addition to 1,060,223. Heading C1A. Basic zirconium sulphate is prepared by contacting a sintered sodium silicozirconate mass with a mixture of HCl and H2SO4 (also containing fluoride ions) at a temperature which does not substantially exceed 50‹ C. A colloidal solution of SiO2 is formed containing NaCl and Na2SO4 together with a precipitate of the product which is separated, washed and hydroextracted. To avoid gelling of the SiO2 sol. during the preparation, the ZrO2 concentration should not exceed 25 g./l. At least the stoichiometric amount of acid required to decompose the silicozirconate should be used, with H2SO4 present in such an amount that the SO3/ZrO2 molar ratio is between 0À4 and 0À8. Fluoride ions are provided by hydrofluoric acid comprising 7-8 wt. per cent of the total acid used. The basic zirconium salt may be calcined to form ZrO2 or dissolved in H2SO4 to form zirconium sulphate.
Patent GB-518740-A (GB)
Title: Fading regulation in television receivers
Inventor: SCHLESINGER KURT
IPC: H04N5/53
Filed: 1938-08-30
Abstract: 518,740. Automatic volumn control. RADIOAKT.-GES. D. S. LOEWE. Aug. 30, 1938. No. 25421. Convention date, Aug. 30, 1937. Addition to 464,492. [Class 40 (v)] In a television receiver, A.V.C. potentials are derived solely from the frame synchronizing signals. As shown, the output valve feeds a transformer 6, preferably tuned to the frame synchronizing frequency and coupled to a rectifier 2 having a load resistance 4 from which A.V.C. potentials are derived. The valve 2 is normally disabled by a bias from source 8, but is rendered operative while the frame synchronizing signals are active by impulses from the time-base generator 10 through condenser 7. The Specification as open to inspection under Sect. 91 comprises also an embodiment in which the condenser 7 is replaced by an inductive coupling. This subject-matter does not appear in the Specification as accepted.
Patent GB-1162114-A (GB)
Title: An improvement in or relating to Tyre Pressure Gauges
Inventor: WALTERS DEREK JOHN
IPC: G01L17/00
Filed: 1966-06-08
Abstract: 1,162,114. Pressure gauges. D.J. WALTERS. June 7, 1967 [June 8, 1966], No.25480/66. Heading G1L. A tyre pressure gauge is provided with a test head in which a relatively soft sealing washer is held by a collar 14 engaging a peripheral edge portion somewhat thinner than the rest of the washer 12.
Patent GB-332107-A (GB)
Title: Improvements in light diffusers for electric incandescent lamps
IPC: F21S13/00
Filed: 1929-08-21
Abstract: 332,107. Brunnquell, O. Aug. 21, 1929. Wall lamps.-A translucent shell 4 encloses an electric incandescent lamp, and has an opening the edge of which is shaped so as to fit against the wall or other supporting surface, the suspension being by cords, the lamp wire, or a rigid suspension. In the construction illustrated the shell is connected, as by a hinge 7, to a supporting plate 8 which bears against the wall. A reflector 1 is fastened to the plate and carries the lampholder.
Patent GB-692367-A (GB)
Title: Lithographic printing plate
IPC: B41N3/03
Filed: 1950-10-20
Abstract: 692,367. Printing-surfaces. TOLAND, W. C., HAMILTON, M. H., and REYNOLDS, A. P. Oct. 20, 1950, No. 25650/50. Drawings to Specification. Class 100(ii) A lithographic printing plate comprises a base, e.g. a paper coated with a water repellent resin, a coating on the base, greasy image portions fixed to the coating, the coating including a water-swellable material, melamine-formaldehyde resin and a water-soluble organic dibasic acid which is dispersed throughout the coating in a finely divided solid state. The water-swellable material may include polyvinyl alcohol or natural colloids such as gelatin, glue, gum arabic, or Irish moss, and the water-soluble organic dibasic acid is a watersoluble dicarboxylic acid, e.g. oxalic, fumaric, succinc, or tartaric acid. The coating also includes fillers such as clay and Blanc Fixe. An intermediate colloidal layer, e.g. a mixture of polyvinyl alcohol, formaldehyde, Blanc Fixe and clay, may also be employed to assist in bonding and prevention of scum formation. Both the melamine-formaldehyde resin and the dicarboxylic acid are dispersed in a finely divided state throughout the coating so that the resin forms hard, water impervious masses throughout the coating thus presenting a number of highly grease retentive anchor points to which a greasy typewritten image or character may be attached, the intermediate areas being grease repellent. It is stated that the acid, by releasing hydrogen ions which diffuse to the surface of the plate, prevents ink emulsification and controls swell of the colloid. Specification 692,366 is referred to.
Patent GB-918303-A (GB)
Title: Material exchange columns
IPC: B01D3/28
Filed: 1960-07-22
Abstract: In a fractionating-column comprising a group of ducts 1, containing packing-material, wherein the vapour and the reflux-liquid flow in countercurrent, each tube for the discharge of vapours of the less volatile fraction has a non-return <PICT:0918303/III/1> valve 22, and all the tubes discharge the vapours into a common chamber 21 when the valves are open, provision being made for adjusting the pressure in chamber 21 whereby the simultaneous opening and closing of the valves can be effected, as required. The lower ends of the exchange-ducts pass through partitions 5, 6 between which is a steam-heated chamber 25 whereby the liquid in the base of the ducts is boiled.  The mixture, which it is desired to fractionate, is pumped through pipe 24, wherein it is vaporized.  The vapours flow via distributing tank 23 and tubes 30 into the exchange-ducts.  The pressure in the ducts is maintained constant by a vacuum pump 41 and a regulator 43, connected via cooling-trap 45 to the condenser 32 for the heads-product.  The bottoms product, discharged as vapour through the non-return valves into chamber 21, is condensed in condenser 52, the pressure in which is controlled by regulator 56.  The vapour in chamber 21 flows to condenser 52 when valve 51 is open, this valve being controlled by time-controlled device 59 in dependence on the density of the condensate.  The non-return valves are opened for about 3 to 5 minutes in every hour; during the rest of the time they remain closed so that the product is concentrated inside the ducts. With decreasing concentration of the condensate from condenser 52, the opening-period of the valves is reduced, while with increasing concentration it is lengthened.  The concentration of heavy water is referred to.  When the more volatile component of the mixture is to be withdrawn during a determined interval of time, the non-return valves are mounted at the top ends of the exchange ducts.  Condenser 32 and distributing tank 23 form the inventive subject-matter of Specifications 918,304 and 918,305, respectively.
Patent GB-719788-A (GB)
Title: Improvements in and relating to the production of synthesis gases containing hydrogen and carbon monoxide
Inventor: PEARCE RONALD JAMES PERRETT
IPC: C10J3/46
Filed: 1951-11-02
Abstract: 719,788. Gas producer:; gas compositions. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 25, 1952 [Nov. 2, 1951], No. 25656/51. Classes 55 (1) and 55 (2) In a process for the continuous production from particulate coal of a synthesis gas containing large proportions of carbon monoxide and hydrogen, the coal is injected by a gas such as carbon dioxide or nitrogen through a line 4 into a carbonization and gasification vessel 1, steam being admitted at 5 at sufficient velocity to form a fluidized or boiling bed. The bed is maintained at a temperature of 850‹ to 1050‹ C. by withdrawing char through line 11 and passing it in a gas stream admitted at 12 into a vessel 2 where it is entrained in an upflowing stream of preheated air entering at 8. The char is partly burnt and the remainder, which is highly heated, separates from the blow gas in vessel 3 and returns to vessel 1 through a pipe 6. The product gas is withdrawn at 7 whilst the blow gas passes to a waste heat boiler 13. The coal feed line 4 enters the vessel 1 at a point remote from the char inlet from pipe 6 so that carbonization gases are subjected to cracking in contact with the char before they reach the outlet pipe 7. The synthesis gas produced contains in percentages by volume CO 2  10-20, CO 20-35, H, 30-65, CH, 0-3, the remainder being nitrogen. Specification 679,996 is referred to.
Patent GB-508158-A (GB)
Title: Improvements in and relating to under-carriages for aircraft
IPC: B64C25/00
Filed: 1938-09-02
Abstract: 508,158. Aircraft undercarriages. ELEKTRON-CO. Sept. 2, 1938, No. 25698. Convention date, Sept. 2, 1937. [Class 4] Relative rotation between the telescopic tubes of cantilever spring-struts in aircraft undercarriages is prevented by means of similar links 9 articulated on the shock-absorber elements 1, 2, their outer ends being connected by one or two links 11. The links 9, 11 may be made of different materials so that the effect of wear is limited to the links 11.
Patent GB-292816-A (GB)
Title: Improvements in charge mixing device for internal combustion engines
IPC: F02M29/08
Filed: 1927-09-29
Abstract: 292,816. Heard, W. H. Sept. 29, 1927. Check elastic valves. - The charge supplied to an internalcombustion engine is mixed by a helically-coiled wire spring A<1> positioned in the induction pipe or the carburettor, the coils of the spring being opened by suction. The spring may be of Venturi, conical, or other shape and may be open or closed at the top.
Patent GB-1496969-A (GB)
Title: Clutches
IPC: F16D48/02
Filed: 1976-06-14
Abstract: 1496969 Clutch control DAVID BROWN GEAR INDUSTRIES Ltd 14 June 1976 [17 June 1975] 25772/75 Heading F2L An hydraulic control system for a clutch comprises a control valve whose slide member 13 is acted upon in opposing directions by a spring 15 and a governor 23, a relief valve 14 which permits oil supplied to the control valve by a pump to return to sump, and a detent 19, 20, 21 for acting on the slide member with a force less than that exerted by the spring 15. As shown, the governor 23 which is connected to an engine tilts a lever 17 against the action of the spring 15 only when the engine has reached a predetermined speed. At lower speeds, oil pumped to the control valve by way of an inlet 12 is directed via a by-pass of the relief valve 14 to an outlet 11 connected to sump whereas at the predetermined speed the slide member 13 is urged against the action of the spring 15 to close-off the outlet 11 and to permit a build-up of oil pressure which, via an outlet 10, operates the clutch before it actuates the relief valve 14 to drain to sump via outlet 11. The detent which is adjustable by a grub screw 21 locks the slide member 13 until the engine speed drops below the predetermined speed. The outlet 10 may be connected directly to a single clutch, or by way of a selector valve to either of two clutches. The clutches may be of the multiplate type or of the single plate type. The outlet 11 may be connected to sump either directly or by way of the friction surfaces of the clutch to permit lubrication and cooling of the latter. The clutch or clutches may be employed in conjunction with a semi-automatic multiratio gear-box of a commercial vehicle.
Patent GB-1202861-A (GB)
Title: Investigation of the internal structure of an animal body
Inventor: SMART DESMOND
IPC: G01N33/12
Filed: 1966-05-11
Abstract: 1,202,861. Lasers. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 24 July, 1967 [11 May, 1966; 9 June, 1966], Nos. 20837/66 and 25793/66. Heading H1C. The suitability of an animal body for use as food is investigated by placing it in a divergent laser beam, and recording the light transmitted on a screen or photographic plate, so indicating the selective absorption of the beam by different parts of the body. Light from a ruby red laser (6943 A) or a gas laser (6328 A) is suitable for investigating the vascular system of the body, and from an argon laser (5145 A) or a nitrogen laser (4000-4300 Š) for investigating muscular or bone structure.
Patent GB-809451-A (GB)
Title: Oxidation of fatty acids
IPC: C07C51/215
Filed: 1955-09-09
Abstract: A monocarboxylic acid and a dicarboxylic acid are produced by oxidation with molecular oxygen of an ethylenically unsaturated higher fatty acid containing at least ten, preferably not more than twenty-four, carbon atoms and also containing at least one ethylenically unsaturated linkage, there being no ethylenic linkages which are conjugated with the carbonyl group of the carboxylic acid radical, wherein said fatty acid is oxidised while in solution in propanol.  Suitable unsaturated acids are oleic acid, palmitic, petroselinic, erucic, and linoleic acids, which may be in pure form, or materials containing them, such as foots oil, may be used.  The ratio of fatty acid to propanol may vary from 2 : 1 to 1 : 10, ratios of 1 : 2 or 1 : 3 to 1 : 5 being preferred.  The oxidation is conveniently effected by passing air, or other gas containing molecular oxygen, through a solution of the fatty acid in propanol, preferably in the presence of an oxidation catalyst, such as a catalyst containing cobalt, manganese, copper or chromium, e.g. cobalt acetate or cobalt naphthenate.  The oxidation may take place at temperatures of from 25 DEG  to 150 DEG  C., preferably between 80 and 90 DEG  C.  If desired, the reaction may be started at a temperature above 90 DEG  C., e.g. 150 DEG  C., to reduce the induction period and after the reaction has begun the temperature may be reduced to the desired range.  The reaction may also be started in the presence of 5 to 20 per cent of the reaction products obtained by a previous oxidation.  The oxidation is advantageously continued until about 50 to 95 per cent, preferably 60 to 80 per cent, of the unsaturated fatty acid has been oxidized.  The products may be isolated by distilling off the solvent together with acetic and propionic acids formed, and saponifying any esters present by refluxing with aqueous sodium hydroxide.  The mixture is then acidified, e.g. with sulphuric acid, and extracted with ether which also results in the precipitation of a dihydroxy carboxylic acid by-product.  After evaporation of the ether, the carboxylic acids are reacted with ethyl or methyl alcohol and the resulting esters are fractionated under reduced pressure.  Alternatively, after evaporation of ether, the mixture is fractionally distilled to recover, in the case of oleic acid oxidation, pelargonic acid and the azelaic acid may be extracted from the residue with hot water.  The dihydroxy acid by-product may be further oxidized to form the same mono- and di-carboxylic acid as described in Specification 809,452. Examples describe the oxidation of oleic acid in n-propanol by passing air through the solution, in the presence or absence of cobalt naphthenate, to give pelargonic acid, azelaic acid and 9,10-dihydroxy stearic acid.
Patent GB-1298729-A (GB)
Title: Improvements in and relating to planetary rolling mills
Inventor: SENDZIMIR TADEUSZ
IPC: B21B13/20
Filed: 1970-05-29
Abstract: 1298729 Rolling mills T SENDZIMIR 29 May 1970 25909/70 Heading B3M A planetary rolling mill employs a pair of roll assemblies each including a number of work rolls 2, Fig. 3, positioned around a backing roll 1, the work rolls being supported at each end in a cage, 3, Fig. 11, surrounding a backing roll. The cage has pockets around its periphery for accommodating chocks 9, Fig. 3, of the work rolls, each pocket being defined by the parallel walls of adjacent bars 8. The bars are secured to a cage either by screws (Fig. 7, not shown), by a tensioning strip 10, Fig. 1, or by tensioning wires 10a, Fig. 4. Elastic liners 14 and 15, Fig. 3, may be positioned between each chock 9 and the adjacent bars 8. Instead of separate bars being provided for each cage, the bars may be extended so that they connect two cages, Fig. 11, and make a rigid assembly. The work roll chocks 9 may be used simply to position the rolls, and further bearings 17 may be provided at the roll ends. These bearings 17 are tensioned by wires 19 to hold the rolls against their associated backing roll. Alternatively, the ends of the work rolls may simply be provided with grooves around which tensioning wires pass (Figs. 9 and 10, not shown). To drive the two roll assemblies in synchronism, gears 12 are provided on the cages. The gears may be formed from separate segments, Fig. 4, held together by tensioning wires 24, and radially adjustable by shims 25. Each roll chock 9 is conveniently of square shape with a non-central bore (Fig. 12, not shown) so that the chock can be positioned in alternative positions in its pocket. The circumferential position of a roll relative to the cages can therefore be adjusted within small limits. The chocks 9 bearings, bearing surfaces of the chocks 9 may be formed of an oil-less plastics material or of glass fibre reinforced plastics material including McS 2 , since their loading is small.