baber/WOPTO huggingface dataset:
Patent GB-1470449-A (GB)
Title: Apparatus for the reduction of gas mixtures
IPC: G01N21/76
Filed: 1974-11-29
Abstract: 1470449 Separating gases; nitrogen oxides PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Nov 1974 [4 Dec 1973 31 Jan 1974] 51803/74 Heading C1A [Also in Division G1] Apparatus for use in the determination of nitrogen oxides in air comprises a container which has an inlet and an outlet and is filled with a granular composition comprising a mixture of ferrous sulphate and an alkali metal bisulphate in molar ratio from 3 : 1 to 1 : 1, optionally applied to the surface of an inert carrier material such as pumice. Also mentioned are silica, quartz, polytetra-fluoroethylene. The pumice may have grain size 6 to 7 mesh (1 to 2 mm.), surface area 100 to 200 m.<SP>2</SP>/gm. and may be impregnated with a 1 : 1 molar mixture of FeSO 4 7H 2 O and KHSO 4 . The apparatus shown is for the determination of NO and NO 2  in air by measuring the chemiluminescence produced on reacting NO and 03, and comprises ozonizer 14 for producing a constant stream of ozone to reaction chamber 15, optical filter 16 and photomultiplier tube 19, conduits 7, 8, for admission of air to the chamber, conduit 7 having connected across it a container 12 as defined above and conduit 8 including means 9 for removing nitric oxide, valves 10, 11 being adjustable to allow flow to the chamber of either air (for determination of its NO content) or air which has passed through container 12 (for determination of its NO 2  and NO content). The apparatus of Figs. 1-3 (not shown) for determination of the NO 2  content of a gas stream comprises means (2) for introducing NO 2  into a pure air stream, a container (5) as above for reducing the NO 2  into a pure air stream, a container (5) as above for reducing the NO 2  to NO, an oxidator 6 for oxidizing the NO to NO 2  again and a coulometer (7) for determining the amount of NO 2  in the gas stream.
Patent GB-1196038-A (GB)
Title: Production of Cracked Gas by Catalytic Cracking of Hydrocarbons.
IPC: B01J37/02
Filed: 1967-11-15
Abstract: 1,196,038. Making combustible gas. BADISCHE ANILIN- & SODA-FABRIK A.G. 15 Nov., 1967 [16 Nov., 1966], No. 51965/67. Heading C5E. [Also in Division B1] Combustible gas consisting mainly of H. 2  with some CH 4  is made by catalytically cracking C 2  to C 30  hydrocarbons with steam in a tubular reactor at a temperature above 550‹ C., the catalyst comprising, by weight, 35 to 55 % Ni and 10 to 30% calcium aluminate binder, having magnesium oxide as carrier, and having an internal surface area of 15 to 50 sq. metres per gram. The catalyst should be alkali free or contain less than 0À5% b.w. reckoned as alkali metal. The catalyst at the inlet and/or exit ends of the tubes may be replaced by another catalyst, e.g. a high cracking activity Ni and/or Co catalyst at the inlet, and a calcined Ni or Co catalyst for cracking CH 4  to H 2  at the exit. The catalyst at the entry end of the tube may consist of finer particles, e.g. 4 to 6 mm. in size, than the rest of the catalyst. Feedstocks include olefins and gas oils.
Patent GB-1375106-A (GB)
IPC: D06C23/04
Filed: 1972-11-13
Abstract: 1375106 Selective printing or embossing DATA CARD CORP 13 Nov 1972 [15 Nov 1971] 52221/72 Heading B6F Two or more lines of characters are embossed on a credit card or other medium by a single embossing module (e.g. 18, Fig. 5) having a fixed row of embossing elements (punches P 1  to P n  and dies D 1  to D n ), by subjecting the card to a square wave movement as it is transported past the elements. The card is indexed along a guide rail 14b, Fig. 3, by pins 118, Fig. 4, of an endless band 116 acting as pushers. In each horizontal index or embossing position, the card is vertically displaced to present each time to be embossed to the fixed embossing elements, by vertical displacement of the rail 14b. A complete card embossing system (Fig. 1) comprises an input hopper (10) and an output hopper (12) for the cards which are transported therebetween along a track (14) passing through three modules (16, 18 and 20) operative to emboss the lines with single or plural lines. The third module (20) may be used to magnetically encode the cards. Although the system is normally under computer control, a typewriter (28) provides for manual input as well as a hard copy output of what is embossed and encoded.
Patent GB-1409256-A (GB)
Title: Fire extinguishing system
IPC: A62C35/58
Filed: 1972-11-13
Abstract: 1409256 Fire-extinguishing sprinkler head US FIRE CONTROL CORP 13 Nov 1972 [15 Nov 1971] 52261/72 Heading ASA A sprinkler head which has a body portion defining an inlet, outlet and intermediate flow passage includes in the flow passage a reservoir of a chemical fire extinguishant and a valve coupled to a combustion products responsive actuator the reservoir being disposed in the passage between the valve and the outlet, the actuator opening the valve at a predetermined level of combustion product. In Fig 1 body 23 comprises inlet 24, outlets 25 and fluid flow passage 26. The latter houses valve washer 27 connected by rod 28 to actuator sensor 29, and reservoir 33 of crystalline extinguishant enclosed in mesh screen 35. Spring 31 normally urges washer 27 against the mouth of 26 to close 26. Sensor 29 contains an expansible crystalline material. In the event of fire the expansion of the latter acts through rod 28 to lift washer 27 from its seat and allow fluid flow through reservoir 33, to discharge from outlets 25. Shield 36 protects the sensor from the fluid discharge. When ambient temperature falls below the critical metal point of the sensor crystals the latter contract, and washer 27 is restored to its closing position by spring 31. Fluid flow then ceases. In Fig 2 the valve means comprises valve element 52 acted on by spring 56 to displace an opening 53 from passage 46, and rod 54 attached to actuator 55 which can counteract the spring to align opening 53 and passage 46. Chemical block 48 is retained in reservoir 47 by spacing shoulders 49, which ensure free fluid flow round block 48. As in Fig 1 the actuator 55 both initiates and teminates discharge. The solid extinguishant may be a surfactant. The actuators may be smoke-sensitive instead of heat-sensitive if required. A number of identical sprinklers may be used in a single system to protect a large area, as schematically shown in Fig 3.
Patent GB-1333009-A (GB)
Title: Pulse generating circuits
IPC: H02M7/537
Filed: 1971-11-11
Abstract: 1333009 Pulse generators ESB Inc 11 Nov 1971 [11 Dec 1970] 52479/71 Heading H3T [Also in Division A5] A pulse generator comprises a plurality of capacitors charged in parallel from a supply during the period between pulses supplied by a pulse generator powered by the supply and connected in series with each other and with the supply during the pulses. The Figure shows a heart pacemaker including capacitors C 9 , C 10  and C 11  which are charged in parallel via resistors R 10 , R 12 , R 14  and diodes D 5 , D 6  and D 7 . Each pulse from a generator 12 saturates transistor Q 3  so that the left-hand plate is connected to earth and the right-hand plate is at the supply voltage below earth. Q 4 , Q 5  and Q 6  are each saturated by the preceding transistor so that the capacitors are connected in series with the supply giving four times the supply voltage to the load terminals 46, 48. The emitter resistor R 17  in conjunction with the diodes D 8 , D 7  limit the output current to a constant value irrespective of the load and a Zener diode D 10  prevents excessive output voltage. The control pulses are derived from a complementary type blocking oscillator circuit 12 in which a capacitor C 2  is charged until its voltage is such that Q 1  starts to conduct, whereafter by regenerative action the transistors are turned on and then off. During this on period the capacitor is discharged and the transistors thus remain off until the current through R 6  has again recharged the capacitor. The supply is obtained from three batteries connected in parallel through isolating diodes and the charging circut for the oscillator is connected to each battery so that if one or two of the parallel battery circuits fail the pulse rate slows detectably.
Patent GB-1502413-A (GB)
Title: Burners
IPC: F23D11/38
Filed: 1973-11-15
Abstract: 1502413 Burner nozzles BOC INTERNATIONAL Ltd 5 Feb 1975 [15 Nov 1973] 53092/73 Heading F4T A liquid fuel burner comprises a nozzle having a central gas passage 5, Fig. 1, an outer passage or passages 1 connected to the central passage at 2, and an intermediate passage or passages 10-12, for connection to a liquid fuel source, the central passage or the outer passage having a constriction 6 so that the cross-sectional area of the passage increases in a direction downstream of the constriction. In operation, oxygen enters the nozzle through annular passage 1, some of the oxygen flowing through conduit 2, passage 4 and out through an aperture 5, while the remainder flows through a constriction 6, expands, and leaves the nozzle through an annular aperture 8. Oil enters the nozzle through passage 10 and flows through conduits 11 to passages 12, and out through discrete apertures 14. This arrangement ensures thorough mixing of the oil and oxygen. In a modification, Fig. 3, central oxygen passage 20 has a restriction 22. Air may be supplied instead of oxygen, and fuel gas instead of oil. The ring of discrete fuel apertures 14, Fig. 1, may be replaced by a single annular passage and the outer annular oxygen passage 8 could be replaced by a ring of discrete apertures, each of which has a constriction.
Patent GB-1101636-A (GB)
Title: Improvements in or relating to polishing compounds
IPC: C03C15/02
Filed: 1965-12-16
Abstract: A polishing compound is obtained by grinding a bastuosite concentrate and firing in a Hf atmosphere at above 1400 DEG  F. but not above the sintering temperature for at least 15 mins. The concentrate contains at least 65% rare earth oxides and is ground to a size less than 5m .ALSO:A refractory polishing compound is obtained by grinding a bastuasite concentrate and firing in a H.F. atmosphere or above 1400 DEG  F., but not above the sintering temperature for at least 15 minutes.  The concentrate contains at least 65% rare earth oxides and is ground to a size less than 5m .
Patent GB-1484733-A (GB)
Title: Squaring and to square rooting electrical circuits
IPC: G06G7/20
Filed: 1975-12-11
Abstract: 1484733 Electric analogue calculating FERRANTI Ltd 11 Dec 1975 [13 Dec 1974] 53913/74 Heading G4G An electric analogue circuit for deriving square or square root functions utilizes the fact that the source-drain current of a field effect transistor is proportional to the square of the source drain voltage when the gate is held at the "pinch-off" level. In Fig. 1, which gives an output voltage at 38 related to the square of an input voltage at 40, the gate 14 of F.E.T. 11 is held at the "pinch-off" level by connection to the gate 19 of a further similar F.E.T. 16 in a circuit 15 which maintains a small current through F.E.T. 16. The input at 40 is applied to the drain 13 of F.E.T. 11 through an amplifier 25 and the input inverted by another amplifier 29 is connected to the source 12 of F.E.T. 11. An amplifier 36 whose inputs are connected between the midpoint of the feedback loop of amplifier 29 and the source 12 has a feedback resistor 37 which tends to maintain the inputs of amplifier 36 equal and thus carries a current equal to the source-drain current of F.E.T. 11 and hence proportional to the square of the input signal, thus giving the desired output at 38. A square root circuit using the same principles is illustrated in Fig. 2 (not shown).
Patent GB-1444445-A (GB)
Title: Non-slip waistband product and method for manufacturing the same
IPC: D06N7/00
Filed: 1973-11-23
Abstract: 1444445 Silicone coated waistband JOHNSON & JOHNSON 23 Nov 1973 [24 Nov 1972] 54469/73 Heading. B2E [Also in Division A3] A waistband, e.g. for use in trousers, pants and skirts, may be prepared from a fabric 10 e.g. woven, non-woven or knitted, having a pattern, e.g. wavy lines 11, dots of an elastomeric silicone compound adhered to one surface thereof, the silicone compound being flexible at temperatures from -30‹F to +250‹F, a Shore A hardness of 20 to 45, a tensile strength of 250-500 psi, a percent elongation of 100 to 500% and a linear shrinkage of less than 2%. Such a product may be prepared by applying to one surface of a base fabric in a pattern, e.g. through hypodermic needles, an elastomeric silicone compound having a viscosity of between 12000 and 25000 centipoises and a tackfree time of less than 40 minutes. Then the compound is gelled, e.g. while the fabric passes over the reach of conveyor, to allow it to seep in and adhere to the permeable portions of the fabric, oven curing the compound at between 90‹F and 185‹F in an atmosphere containing at least 7 grains of water per cubic foot and ageing the cured compound and fabric for at least one hour to remove volatile toxic material from the compound and fabric.
Patent GB-1108420-A (GB)
Title: Motor vehicles having hydrosta tic drive
IPC: B60K17/10
Filed: 1966-12-07
Abstract: 1,108,420. Vehicle steering arrangements. CLARK EQUIPMENT CO. 7 Dec., 1966 [29 Dec., 1965], No. 54695/66. Heading B7H. In a motor vehicle with a pair of driven wheels 12<SP>1</SP>, driven by respective variable displacement hydraulic motors 50<SP>1</SP> arranged in series, and a pair of steerable wheels 14<SP>1</SP>, means are provided which vary the displacements of the motors in accordance with the angle of steer. The wheels may be both steerable and driven (Fig. 1, not shown) or either steerable or driven (Fig. 5) and the motors 50<SP>1</SP> may be swashplate motors or tilting head motors, as shown. An engine-driven constant displacement pump 62<SP>1</SP> supplies the motors 50<SP>1</SP> through conduits 68<SP>1</SP>, 70<SP>1</SP>, 72<SP>1</SP> and a pump 641 supplies a manually controlled open-centre spool valve 82<SP>1</SP> which selectively supplies steering rams 86<SP>1</SP> at the wheels 14<SP>1</SP>. Deflections of the wheels 141 are communicated through a tie-bar 40<SP>1</SP> and linkage 132, 128, 126 to a centrally pivoted lever 122 which pivots the motors 501 through links 56<SP>1</SP> to provide differential displacements and hence differential wheel speeds. In the alternative vehicle with four driven steerable wheels, each motor housing 54 (Fig. 2) is pivoted relative to its respective wheel drive shaft 30 about a king-pin 16 by a link 56 pivoted to the adjacent tie-rod 40 to vary the motor displacement during steering.
Patent GB-1370137-A (GB)
Title: Coin freed vending machines
IPC: G07F5/18
Filed: 1971-11-25
Abstract: 1370137 Article vending machines DEAN VENDING Ltd 24 Nov 1972 [25 Nov 1971] 54756/71 Heading G4V A coin-freed vending machine comprises a plurality of individually operable rotary dispensers located beneath respective article columns and connected with a single coin release mechanism, a plurality of cams 52b to 55b each rotatable with a respective one of the dispensers, and a plurality of slidable members 61 to 64 together defining an abutment on each side of each cam, rotation of any one cam causing movement of the abutments so that no other cam may be rotated. In the embodiment shown each dispenser (not shown but similar to those shown in Fig. 3) is supported on a respective shaft 52 to 54, provided with a manually operable knob, e.g. 54b. The members 61 to 64 are each provided with four cut-outs 61c to 61f &c. and are arranged so that each plate has the edge of one cut-out abutting a respective cam, Fig. 6, the members being biased to the left by springs 61g to 64g. An initial rotation of any cam will move the corresponding member so that a step, e.g. 61h on the member slides a bar 86 to pivot coin shoot 71 and move an inserted coin 92 against a lifting plate 82. The release lever 79 then pivots to remove a stop pin 81 from the paths of steps, e.g. 61k on the member and permit full movement of the member. In another embodiment (Figs. 1 to 4, not shown) the shaft of each dispenser (12) to (15) is provided with a respective gear, ratchet and pawl, e.g. (12d), (12e) and (12f), the gears being connected via idlers (35) so that rotation of any shaft rotates all the gears in the same direction, one of the gears being connected with a coin release mechanism, e.g. as described in Specification 1,058,772.
Patent GB-1178807-A (GB)
Title: Electrical Bistable Circuit
Inventor: SCHUENEMANN CLAUS HEINRICH
IPC: H03K3/012
Filed: 1968-11-20
Abstract: 1,178,807. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORP. 20 Nov., 1968 [15 Dec., 1967], No. 54987/68. Heading H3T. A bi-stable circuit comprises two doubleemitter four layer transistors with their middle layers cross-coupled, a first emitter of each connected to a common potential source and the other emitters to respective sources of input signals. The collectors may be connected to a common supply resistor. Addressing is effected by changing the potential of the commoned emitters so as to divert current in the conducting transistor to the other emitter. Read-out is effected by detecting current flow in one of the non-commoned emitters and writing is effected raising the emitter potential so as to prevent current-flow. The circuit is compared with a similar known bi-stable circuit comprising cross-coupled conventional double - emitter transistors and individual diode collector loads (Fig. 1, not shown).
Patent GB-1421786-A (GB)
Title: Method of and installation for treating a gaseous mixture
IPC: A23B7/12
Filed: 1972-11-30
Abstract: 1421786 Separating gaseous mixtures L'AIR LIQUIDESOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 30 Nov 1972 [30 Nov 1971] 55454/72 Heading B1L A process of separating gaseous mixtures e.g. air into at least a first constituent e.g. nitrogen and a second consituent e.g. oxygen is an adsorption/desorption cycle in which the mixture is passed into an adsorption zone where the first constituent is preferentially absorbed at the highest pressure in the cycle. The absorbed second constituent which may be retained in the absorbent is eluted at a second lower pressure and all second constituent is conveyed from the absorption zone and finally the absorption zone is desorbed of the first constituent by reduction to a lowest pressure. Various embodiments of the process are described involving choice of eluting gas, directions of flow and processes involving more than two constituents and more than one absorber.
Patent GB-1285599-A (GB)
Title: Separation of cyanogen chloride and hydrogen chloride
IPC: C01B7/01
Filed: 1969-11-14
Abstract: 1285599 Separating CNCI from HCl DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 14 Nov 1969 [19 Nov 1968] 55795/69 Heading B1L Cyanogen chloride is recovered from gas streams also containing hydrogen chloride by absorbing the cyanogen chloride in a chlorinated hydrocarbon, in which hydrogen chloride is substantially insoluble. A suitable arrangement is to pass the stream upward in countercurrent to absorbent, whereby the hydrogen chloride may be removed as gaseous overhead; the liquid bottoms containing the absorbed cyanogen chloride is then either fractionally distilled or the absorbent preferentially dissolved in another solvent, e.g. hexachlorobutadiene, which may thereafter be removed by distillation, to yield a gaseous overhead of cyanogen chloride and a liquid bottoms of absorbent, which is then returned to the absorption stage. In examples, the preferred absorbents are 1, 2, 4-trichlorobenzene, tetrachloroethylene and carbon tetrachloride.
Patent GB-1067826-A (GB)
Title: Apparatus for detecting and correcting horizontal misalignment of a railway track
Inventor: STEWART JOHN KENNETH
IPC: E01B35/00
Filed: 1963-10-15
Abstract: 1,067,826. Checking railway track alignment. CANADA IRON FOUNDRIES Ltd. Oct.15, 1963, No.56055/66. Divided out of 1, 067, 825. Heading G1A. To check and correct horizontal misalignment of railway track a wheeled carriage is provided having a transmitter 13 of, for example, infrared radiation directing a narrow beam longitudinally of the track and a receiver spaced there from and aligned to receive the radiation beam. An opaque screen 41 is located between the transmitter and receiver and is positioned laterally in accordance with a rail following member. The carriage is provided with jack means 45 J operative to shift the track horizontally in one direction in response to obstruction of the beam by the screen and in the opposite direction in response to transmission of the beam in such a way as to maintain the jack means in a hunting condition when the apparatus is in operation. This effectively straightens the track. Rollers 60-63 maintain the carriage in a predetermined lateral position and resist the jack forces. The carriage may progress continuously during operation and biassing can be provided to follow a predetermined curve. A modification in which the transmitter, Screen and receiver are on three separate trucks each spring-urged to closely follow the same rail is described with reference to Fig. 1. The jack in this case operates against a ballast anchor and the equipment must be stopped for jacking to take place. The apparatus of the present invention may be combined with the vertical profile and cross level investigating and correcting apparatus described in Specification 1,014,324.
Patent GB-1235369-A (GB)
Title: Silver halide photographic emulsions
IPC: C09B23/06
Filed: 1968-11-26
Abstract: 1,235,369. Methine dyes. FUJI SHASHIN FILM K.K. 26 Nov., 1968 [27 Nov., 1967], No. 56107/68. Heading C4P. [Also in Divisions G2-G3] Methine dyes of formulµ are prepared respectively by (1) treating 2- #- anilinovinyl) - 5,6 - dichloro - 1,3 - diethylbenzimidazolium iodide with NaOH, and (2) condensing 1 - carboxymethyl - 5,6 - dichloro- 3 - ethyl - 2 - methylbenzimidazolium bromide with diphenylformamidine.
Patent GB-1415227-A (GB)
Title: Process and apparatus for making metal powders
IPC: B22F9/08
Filed: 1973-12-05
Abstract: 1415227 Granulating metals HOECHST A G 5 Dec 1973 [13 Dec 1972] 56424/73 Heading C7X Molten metal e.g. iron is granulated by allowing it to fall from a funnel 5 on to a stream of water supplied through a nozzle 7, the angle between the metal and the water being 60 to 80 degrees. The nozzle is adjusted by a member 9 to vary this angle.
Patent GB-1456676-A (GB)
Title: Dental cleansing compositions
IPC: A61K8/66
Filed: 1973-12-07
Abstract: 1456676 Dental cleansing compositions containing dextranase COLGATE-PALMOLIVE CO 7 Dec 1973 [8 Dec 1972 27 Nov 1973] 56837/73 Heading A5B Stabilized dental cleansing compositions, e.g. cream or gel toothpastes and mouthwashes, contain dextranase and at least one watersoluble compound which provides in the composition, as a stabilising activator, free manganese (II) cations and/or calcium cations and/ or magnesium cations, the stabilising activator being present in an amount in the range from 0.001 to 0.3% by weight of the composition. Manganous, calcium and magnesium nitrates and chlorides, and manganous and magnesium sulphates are the preferred water-soluble compounds. The compositions may contain conventional ingredients such as dental polishing agents, flavouring agents, fluorine compounds and surface active agents e.g. a sulphoacetamide such as the potassium salt of N-(2'-lauroyloxyethyl) sulphoacetamide or a sodium potassium or ethanolamine salt of a compound of the formula R(CH 2 ) 2-3 -NHCOCH 2 SO 3  in which R is a fatty acyl group with 12-18 carbon atoms.