baber/WOPTO huggingface dataset:
Patent GB-1094503-A (GB)
Title: Process for the chlorination of alpha-aminoanthraquinones
IPC: C09B1/28
Filed: 1965-09-28
Abstract: A process for preparing chlorinated aminoanthraquinones by chlorination of a -aminoanthraquinones which may be substituted in the anthraquinone nucleus and wherein chlorination takes place in the anthraquinone nucleus is carried out in the presence of N-methyl pyrrolidone or an aliphatic carboxylic acid amide of the formula R3CON(R1)R2, wherein R3 is hydrogen or a C1-C6 alkyl group and R1 and R2 are each C1-C6 alkyl groups and together with the nitrogen atom may form a five or six membered heterocyclic ring.  Preferably, dimethyl or diethyl formamide, N-formylmorpholine or N-formylpiperidine is used.  Chlorination is preferably carried out at below 20 DEG  C. in an inert organic solvent, e.g. a nitro or chlorobenzene, using about 5% by weight of the carboxylic acid amide based on the aminoanthraquinone. The chlorinating agent may be elemental chlorine or a chlorine-yielding agent, e.g. sulphuryl chloride. 1-Amino-2,3,4-trichloro; 1,5 - diamino - 2,3,4,6,7,8 - hexachloro- and 1,8 - di - amino - 2,3,4,5,6,7 - hexachloro anthraquinones are claimed per se.
Patent GB-933377-A (GB)
Title: Improvements in mine car track brakes
Inventor: TROWE GUNTHER
IPC: B61K7/08
Filed: 1960-11-30
Abstract: 933,377. Track brakes. DEMAG A.G. Nov. 30, 1960, No. 41228/60. Class 103 (1). In a railway track brake the brake shoes 9 are applied by brake pistons 3a operating in cylinders 3 supplied at the closed end of each cylinder with hydraulic fluid from a gas-loaded hydraulic pressure reservoir 2 via a solenoidcontrolled slide valve 6 and the brake shoes are released by reversing the valve 6 to pressurize the other end of each brake cylinder allowing the fluid in the closed ends of each cylinder to be released to a storage tank 5. The pressure reservoir 2 is constantly maintained within adjustable limits by means of a pump 1 controlled by a pressure switch 7.
Patent GB-923602-A (GB)
Title: Bushing for producing thermoplastic fibers
IPC: C03B37/083
Filed: 1961-11-20
Abstract: 923,602. Making feeder nozzles for producing thermoplastic fibres. PITTSBURGH PLATE GLASS CO. Nov. 20, 1961 [Dec. 8, 1960], No. 41392/61. Class 83 (2). A method of forming a metal feeder for the production of thermoplastic fibres composed of a bushing and a supporting frame adhering to and thermally insulated from the bushing by a refractory material comprises assembling the bushing and frame in spaced relation to each other, filling the space between the bushing and the frame with an aqueous slurry of a powdered, castable refractory material and drying the refractory material to form a rigid, sealed unit. The bushing 13 is made of platinum-rhodium alloy containing approximately 90% by weight platinum and is heated by electric current passed through terminals 14. Glass filaments 19 are pulled from cones of glass 20 suspended from hollow tips 15 in the bushing. The filaments are grouped into a strand 24 and wound on a forming tube 22. The bushing has a flange 35 beneath which is mounted a stainless steel cooling tube 36 which cools glass seeping between the bushing flange and the forehearth and thus forms a glass seal. The supporting frame 40 for the bushing is made of a manganese-bronze alloy. A thermocouple 44 is welded to the bushing and extends out through the frame. In between the frame 40 and the bushing 13 is poured a castable refractory material 47, e.g. aluminium silicate powder capable of withstanding a temperature of 2,600 F. In carrying out the method a sheet of tin 50, Fig. 5, is placed on a table 52 and the bushing 13 with the thermocouple 44 welded in place is inverted and plated on the tin sheet. The top surface of the frame 40 is coated with sillimanite cement and then inverted and placed around the bushing on the tin sheets. The bottom of the bushing is covered with masking tape and the cooling tube 36 is placed in position on the flange 35 of the bushing. The castable refractory material 47 is poured into the space between the bushing and the frame and allowed to air dry for about an hour. The assembly is then baked at about 200 F. for three to four hours.
Patent GB-1099196-A (GB)
Title: Process for producing salts of higher alkyl sulphate
IPC: C07C45/50
Filed: 1965-09-29
Abstract: Laundry compositions comprise salts of higher alkyl sulphates obtained by reacting at least one C10- 24 olefin with carbon monoxide and hydrogen in the presence of a rhodium catalyst, hydrogenating the product to form higher alcohols, sulphating these and neutralizing these with a base, e.g. a metal hydroxide, ammonia or an amine. Conventional additives may be present.ALSO:Salts of higher alkyl sulphates are obtained by reacting at least one C10- 24 olefin with carbon monoxide and hydrogen in the presence of a rhodium catalyst, hydrogenating the product to form higher alcohols, sulphating these and neutralizing the resultant sulphation products with a base. Suitable rhodium catalysts include rhodium salts, sodium and ammonium chlororhodites, carbonyls, and metallic rhodium.  An aromatic hydrocarbon medium may be used. Sulphation may be effected with concentrated H2SO4, oleum, SO3 or chlorosulphonic acid, possibly in chloroform or carbon tetrachloride solution.  Suitable bases include metal hydroxides, organic amines and ammonia.
Patent GB-986540-A (GB)
Title: Apparatus for monitoring the generation of static electricity
IPC: F17D5/06
Filed: 1962-11-02
Abstract: 986, 540. Voltage measuring & testing. BRITISH PETROLEUM CO. Ltd., and K.J. MARSH. Oct. 4, 1963 [Nov. 2, 1962], No. 41532/62. Heading G1U. Apparatus for determining a value of electrostatic field strength within a storage tank receiving liquids of low conductivity, arising from electric charges generated by the transfer of the liquid thereto, comprises a supply line connecting to the storage tank, a bleed off line connected to the delivery line, a simulation tank fed from the bleed off line, and an electrical field strength meter determining the electrostatic field strength within the simulation tank. In Fig. 1 a storage tank 1 is connected over line 2, electrically operated control valve 3, pump 4, filter 5 and flowmeter 6 to a second storage tank 7, and a bleed off is taken over line 8 succeeding the filter to a simulation tank 9 having an outlet pipe 10 returning to the suction side of the pump, and proportioned to maintain the simulation tank 9 almost but not quite full. An electric field meter at the head of the simulation tank develops a signal representing the field strength therein, which is amplified at 12 to operate an inducter recorder and/or alarm, and/or to control the valve 3. Provided that no substantial electrostatic charge is generated after bleed-off, and that the difference between the fractions of the charge which relax in the bleed-off and in the supply does not exceed 10%, the equilibrium charge in the simulation tank is proportional to the equilibrium charge in the storage tank. Experimental results are given. The apparatus is adaptable for use in refuelling aircraft, filling road tankers, or transferring fuel in refineries and installations. Specification 942,607 is referred to.
Patent GB-864588-A (GB)
Title: Improvements in composite bodies and method of making same
IPC: H01F41/02
Filed: 1958-12-23
Abstract: 864,588. Making dynamo-electric machines and composite sheets; jointing; casting. GENERAL ELECTRIC CO. Dec. 23, 1958 [Jan. 2, 1958], No. 41547/58. Classes 83 (1), 83 (2) and 83 (4). A method for bonding and insulating metals comprises forming an oxide coating on at least one surface of the metal surfaces, applying a material over the oxide coating capable of chemically reacting with the oxide in the presence of heat, and subjecting the metals and the coated surface or surfaces to heat at a temperature suitable to effect such chemical action between said material and the oxide to form a product upon cooling which bonds the metals together, while also insulating them from each other. In an embodiment for making a squirrelcage rotor used in dynamo-electric machines, the assembled laminations 14 are degreased in a bath of strong alkaline-soap solution or carbon tetrachloride, and then annealed for 10 to 12 hours to increase the oxide layer on the slot walls 20. When cooled, the assembled laminations are dipped in a bath of a saturated solution of borax for approximately thirty seconds. Alternatively, the borax is applied by dusting or spraying it in the slots previously wetted by water or other liquid. The assembly is next heated to 525‹ C., and the laminations are subjected to a pressure of approximately 20 tons prior to placing the assembly in a centrifugal mould, and casting molten aluminium or other conductor bar material at a temperature of 950‹ C. in the slots to form the conductor bars. In another embodiment, Fig. 3,. a number of steel laminations 30 provided as hitherto with a heavy oxide coating and a borax coating on one or both sides are assembled and pressed together by an hydraulic jack. The assembly is then heated to approximately 800‹ C. and, upon cooling, the laminations are separated by an insulator 32 which also rigidly bonds them together. In a further embodiment, a coated steel sheet is dipped in molten aluminium to form a composite metal sheet comprising a thin layer of aluminium bonded to the steel sheet by an interposed glass layer. Sodium ammonium phosphate or boric acid may be used instead of borax.
Patent GB-988388-A (GB)
Title: Improvements in or relating to decollator units
Inventor: GOREHAM PETER ERNEST
IPC: B41L1/00
Filed: 1962-05-04
Abstract: 988,388. Decollating units. LAMSON PARAGON Ltd. May 6, 1963 [May 4, 1962], No. 41690/64. Divided out of 988,387. Drawings to Specification. Heading B6B. The subject-matter of this Specification is identical with that described in Specification 988,387, but the claims are concerned with the manner in which the carbon interleave is wound up.
Patent GB-1450096-A (GB)
Title: Method and apparatus for treating water
IPC: B01J47/04
Filed: 1973-09-06
Abstract: 1450096 Ion-exchange CLARKE CHAPMAN Ltd 31 July 1974 [6 Sept 1973] 41931/73 Heading B1J Apparatus for treating water comprises two vessels each containing a mixed bed of cationexchange and anion-exchange material, each vessel having an inlet and an outlet, an inlet conduit having two branches connected respectively to the vessel inlets, an outlet conduit having two branches connected respectively to the vessel outlets, an on/off valve in each branch of each conduit, and further conduits connecting a point in the inlet branch of each vessel downstream of the on/off valve to a point in the outlet branch of the other vessel upstream of the on/off valve, two further on/ off valves being provided one in each said further conduit. The arrangement is such that the beds can be operated in series during startup and in parallel during normal running; or flow may be through one vessel only, while the other bed is being regenerated.
Patent GB-1081446-A (GB)
Title: Refractory composition
IPC: C04B35/01
Filed: 1964-10-16
Abstract: Pitch-bonded basic refractories are produced by impregnating basic refractory grains having an open porosity of 25-50% with carbon or a carbonaceous residue, intimately mixing said impregnated grains with bonding pitch, and shaping the mixture. The refractory grains may be calcined dolomite, alumina, silicon carbide, forsterite or mullite but preferably contain at least 95% by weight MgO and not more than 40% SiO2, and may have pores of effective diameter 5-100 microns. The pores may be impregnated with a carbonaceous liquid such as liquid pitch or tar which is subsequently carbonized by heating or converted to a polymerized residue by air-blowing and heating, or they may be impregnated by deposition of carbon from a hydrocarbon gas at a cracking temperature.  An amount of 8-11% bonding pitch with a softening point of 65-150 DEG  C. may be used, and a minor amount, e.g. 40%, refractory fines of - 200 mesh (U.S. sieve) may be added to the refractory grains.  The total carbon content of the refractory shape after carbonization of the bonding pitch may be 5-28% by weight.
Patent GB-937996-A (GB)
Title: Improved warning or safety apparatus
Inventor: BEEVERS ERNEST ARTHUR
IPC: F23N5/08
Filed: 1960-12-09
Abstract: 937,996. Pressure gauges. PEEBLES & CO. Ltd. Dec. 27. 1961 [Dec. 9, 1960], No. 42455/60. Class 106 (2). A warning system for indicating abnormal changes of pressure in a pipe-line 1 comprises a diaphragm 2 which on deflection by a predetermined amount moves a flag 4 to prevent light from the lamp 5 reaching the photo-cell 6. The signal pulse, via an amplifier 7, energizes the coil 26 of a relay 8 to produce the following three results: (1) the contacts 16, 27 are closed and the bell 15 rings; (2) the pairs of linked contacts 18, 20 and 22, 25 are opened to deenergize the lamp and to de-energize the coil 12 of a further relay 10 which stops the motor 9 applying the fluid pressure.
Patent GB-1286307-A (GB)
Title: Circuits including schottky barrier diodes and methods of making them
Inventor: HODGES DAVID ALBERT
IPC: H01L21/00
Filed: 1969-08-27
Abstract: 1286307 Transistor bi-stable circuits WESTERN ELECTRIC CO Inc 27 Aug 1969 [17 Dec 1968] 42606/69 Heading H3T [Also in Divisions G4 and H1] A memory cell circuit comprising two junction transistors 82, 85, interconnected to form a flip-flop employs Schottky diodes 83, 86 as load impedances. The emitters of the transistors are connected together to a common word line 94 of the memory and their collectors are coupled to the memory digit lines 89, 92, via diodes 88, 91. Diodes 84 and 87 are included in the circuit only because fabrication is simpler if they are included but their parameters are arranged to be such as to minimize their effect. To write into the cell, one or other transistors is turned " on " by supplying a current from one or other digit line while the word line is earthed, and the cell is read by sensing with a balanced detector the polarity of the voltage between the digit lines, which depends on which transistor is " on ".
Patent GB-941948-A (GB)
Title: Improvements relating to the formation of phosphate coatings on metallic surfaces
Inventor: TRIGGLE ANN MAUREEN
IPC: C23C22/73
Filed: 1961-11-30
Abstract: A phosphate coating is formed on a metallic surface by using a solution containing a phosphate and a coating metal, the solution being depleted in the coating metal while other undesired cations accumulate, wherein such accumulated cations are removed and simultaneously replaced by the coating metal by treating all or part of the solution with a cation-exchange material charged with ions of the coating metal, such as by continuously passing a fraction of the solution through a bed of the material, e.g. a sulphonated styrene/divinyl benzene copolymer, and returning it to the main body of the solution. The solution may contain zinc phosphate, the cation-exchange material being charged with zinc ions and undesired ions removed.  For example:  with an accelerator added as a sodium salt, e.g. nitrate, nitrite, hydroxide, Na ions accumulate; with ferrous surfaces, Fe++ ions accumulate; with a nitroguanidine accelerator, amino-guanidine phosphate is formed which also dissolves Fe; with supersaturated zinc phosphate solution accelerated with hydrogen peroxide as disclosed in Specification 554,654, free acid formed is neutralized with NaOH with the result of accumulation of Na ions; with urea phosphate acting as phosphoric acid, the urea hydrolyses to ammonia, thus accumlating undesired NH4+ ions. In the process disclosed in Specification 645,157 for coating on aluminium or an alloy thereof using a hot solution containing a dihydrogen phosphate of a coating metal, a fluoride and an oxidizing agent, the coating metal charged in the cation-exchange material is exchanged for undesired dissolved aluminium; the fluoride requirement is thereby reduced. Solutions containing coating metals other than Zn, e.g. Mn, may be used.
Patent GB-1482838-A (GB)
Title: Method for stimulating well production
IPC: C09K8/62
Filed: 1975-10-20
Abstract: 1482838 Stimulating well production TEXACO DEVELOPMENT CORP 20 Oct 1975 [20 Dec 1974 (8)] 42952/75 Heading E1F A method of acidizing a subterranean formation comprises injecting into the formation an aqueous acid solution including from 0.5 to 28% by weight of a non-oxidizing mineral acid, e.g. hydrochloric acid, or from 0.01 to 5% by weight of carbon dioxide, and from 0.005 to 2% by weight of a sulphonated antiscale compound of the formula X-SO 3 <SP>-</SP> A<SP>+</SP> wherein A<SP>+</SP> is an alkali metal or ammonium ion, and X is a group of the formula R-[-OCH 2 CH 2 -]- n  or R 2 -CO-NR 1 - CH 2 CH 2 - in which R is an alkaryl group having 6 to 18 carbon atoms in its alkyl moiety, or a saturated or unsaturated aliphatic hydrocarbon group having 8 to 20 carbon atoms, n is a number from 1 to 10, and R 1  and R 2  which may be the same or different, are each a saturated or unsaturated aliphatic hydrocarbon group containing up to 20 carbon atoms, the total number of carbon atoms in R 1  and R 2  being from 9 to 30. Compounds to inhibit the corrosion of metal, e.g. arsenic, nitrogen or sulphur compounds, and to retard the tendency of the acid to attack calcareous components of the formation, e.g. polyvinyl-pyrrolidone, may be present. The acidizing method may be carried out at pressures sufficient to fracture the formation with the acid solution containing a propping agent, e.g. sand. The acid solution may be continuously or temporarily injected into the formation or may be applied in a modified water flood operation in which there is injected into the formation a slug of the acid solution followed by a slug of aqueous drive fluid, which is thereafter followed by a repetition of the two steps to give a continuous cyclic process.
Patent GB-1388218-A (GB)
Title: Anti-lock brake systems
IPC: B60T8/42
Filed: 1973-09-13
Abstract: 1388218 Antiskid braking systems GENERAL MOTORS CORP 13 Sept 1973 [30 Oct 1972] 42988/73 Heading F2F A vehicle anti-lock brake system comprises a governor driven at the speed of a braked wheel and providing fluid at a pressure proportional to wheel speed and at a flow rate proportional to wheel acceleration or deceleration, an accumulator 80; a valve 160 arranged during wheel acceleration to supply fluid at a pressure proportional to wheel speed to charge the accumulator, an orifice 128 arranged during deceleration of the braked wheel to discharge pressure fluid from the accumulator 80 to the governor at a flow rate limited to a predetermined maximum value by the flow threshold of the orifice so that during wheel deceleration at a rate exceeding that corresponding to the maximum value a differential is established between wheel speed pressure and accumulator pressure, and means responsive thereto in the form of a valve 100 to selectively release and re-apply braking pressure. The governor is constructed to provide flow in one direction during acceleration and in the opposite direction during deceleration and the flow orifice 128 restricts the flow to a rate not exceeding a predetermined value corresponding to the maximum deceleration without wheel lock-up so that deceleration in excess of this value causes a pressure difference across the orifice to operate the control valve.
Patent GB-1198406-A (GB)
Title: Semiconductor Transducer
IPC: H04R23/00
Filed: 1968-09-12
Abstract: 1,198,406. Pressure sensitive semi-conductor device. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 12 Sept., 1968 [29 Sept., 1967], No. 43414/68. Heading H1K. A pressure-sensitive semi-conductor device has a region at a surface of the device wherein the concentration of deep level impurities is greater than that of shallow level impurities, and has at least one metal electrode making rectifying contact with the region and at least one metal electrode making ohmic contact to the device. A P-type Si body 1 is provided with a region 2 of Cu impurity atoms by diffusion or ion bombardment. The rectifying contact 3 is of Ag whilst the ohmic contact is Au doped with Ga. Si may be replaced by Ge, GaAs, GaP, InAs, InSb and SiC and Cu by Au, Fe, Co, Ni, and Mn. A plurality of electrodes may be applied to the body and if a plurality of rectifying electrodes are provided then the device acts as if it were a plurality of devices connected in parallel.
Patent GB-987919-A (GB)
Title: Apparatus for use in the handling of sausage skins
IPC: A22C13/02
Filed: 1962-11-16
Abstract: 987,919. Shirring sausage casings. H. G. TILSTON. Sept. 23, 1963 [Nov. 16, 1962], No. 43451/62. Heading A2B. [Also in Division D1] In shirring sausage casings on to a former 17 with the aid of a flow of water through the former and rollers 15 for driving the casing on to the former, means 12 are provided for varying the water supply speed to give an initial burst at the beginning of the shirring.
Patent GB-1485975-A (GB)
Title: Elevating roofs
IPC: B60P3/38
Filed: 1974-10-08
Abstract: 1485975 Increasing vehicle accommodation INTERNATIONAL INDUSTRIAL DEVELOPMENT ORGANISATION Ltd and D LEE 30 Sept 1975 [8 Oct 1974] 43465/74 Heading B7B In a vehicle roof having a rigid roof member 2 hinged along an edge to a base 1, a foldable material 11 extending between edges of the roof member and base member is supported by a framework on raising the roof member. Telescopic arms (28), Fig. 1 (not shown), filled with liquid nitrogen under pressure, bias the roof member 2 into the elevated position. Full elevation of the canopy 11 is obtained by the user urging metal loops 23 of a U-shape frame member 21 outwardly, the loops 23 engaging pegs 16 on movable arms 15 of a telescopic U-shaped frame member 13 to urge the arms outwardly. The frame members are locked in their operative position by engaging the lower ends of metal loops 23 in an appropriate pair of grooves 24 formed in wooden spacers 14 of the base 1. The arms 15 are caused to move to their retracted positions by tension springs located within members 13. As shown in Fig. 7 the space provides sufficient room for two longitudinally extending bunk beds 31, 32 and a transverse bed 33 over the roof of the driving cabin. The frame member 21 may be made extensible in length to take up any sagging in wall section (26) Fig. 6 (not shown).
Patent GB-907152-A (GB)
Title: A circuit for generating a linear ramp voltage
Inventor: SMELTZER JACK CAYLOR
IPC: H03K4/24
Filed: 1959-12-22
Abstract: 907,152. Transistor sawtooth circuits. THOMPSON RAMO WOOLDRIDGE Inc. Dec. 22, 1959, No. 43564/59. Class 40 (6). A ramp waveform generator comprises a capacitor having charging and discharging circuits respectively connected to and across the capacitor, the waveform being linearized by means of a " bootstrap " circuit coupled to the charging circuit by means of a Zener diode. As shown, capacitor 18 is rapidly discharged by transitor 10 when pulses 30 are applied to the base. At the end of each pulse 30, capacitor 18 charges via resistor 20, the rising voltage being passed via an emitter follower 64 and a Zener diode 78 to the charging resistor 20 to linearize the waveform. In the absence of pulses 30, rise is terminated when the base potential of transistor 64 reaches that of the collector. Fig. 2 (not shown), relates to a known circuit in which resistor 62 is replaced by a diode and diode 78 is replaced by a capacitor.
Patent GB-1428753-A (GB)
Title: Trolley for the transport of luggage or merchandise
IPC: B62B5/04
Filed: 1973-09-18
Abstract: 1428753 Trolleys ATELIERS REUNIS SA 18 Sept 1973 [6 Oct 1972] 43644/73 Heading B7B [Also in Division F2] The rear wheels 5 of a trolley, especially a luggage trolley or supermarket trolley are braked by brakes shoes 13 applied to a tyre on the wheel 5 by a spring 15. The brakes shoes 13 are released by pivoting a U-shaped handle 9 about a pivot 11 so as to raise rods 14 connected to the handle by links 16. A pin and slot connection 18, 19 compensates for wear of the tyre on wheel 5.