baber/WOPTO huggingface dataset:
Patent GB-1416720-A (GB)
Title: Process for separating aromatic hydrocarbons from mixtures of hydrocarbons
IPC: C07C7/04
Filed: 1972-12-12
Abstract: 1416720 Separating aromatic hydrocarbons from mixtures UNION CARBIDE CORP 12 Dec 1972 [13 Dec 1971] 57290/72 Heading C5E Aromatic hydrocarbons boiling in the range 80‹ to 175‹ C. are recovered from a feedstock 1, by contacting in an extraction column 3 with a mixture of water and a water-miscible organic liquid having a boiling point of at least 200‹ C. to provide an extract 19, which is distilled in the column 23 in the presence of steam to provide an aromatics side stream 26, an overhead stream 18, which is recycled as reflux aliphatic hydrocarbons to the column 3, and a raffinate 5. The overhead 18 from the distillation column is cooled to form an aqueous phase 31 which is used as the stream 32 to wash the raffinate 5 and as the stream 33 to wash the portion of the aromatic stream 26 sent to the benzene-recovery distillation column 62 and then to the toluenerecovery column 68, alternatively according to the embodiment set out in claim 1 the aqueous phase 31 is not divided as shown but used to wash the raffinate 5 and then to wash the aromatics stream 26. As shown in Fig. lb the raffinate 5 and the extract 19 are cooled by being used to provide about half the heating requirement for the benzene and toluene distillation columns 62 and 68. The water/solvent mixture suitably comprises 1 to 8 wt. per cent water; dipropylene glycol, tripropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, N-methyl-2-pyrrolidone, acetamide, diethylenetriamine, triethylenetetramine, diethanolamine, para-cresol and metacresol are listed as suitable solvents.
Patent GB-1126828-A (GB)
Title: By-pass fitting for a fluid line
Inventor: MUELLER FRANK HIERONYMUS
IPC: F16K51/00
Filed: 1966-11-19
Abstract: 1,126,828. Pipe joints; junction pieces; stopping pipes. MUELLER CO. 19 Nov., 1966, No. 57413/67. Divided out of 1,126,826. Headings F2G and F2P. [Also in Division G1] A gas meter installation is identical to that described in the parent Specification, but the claims are directed towards the by-pass fitting which comprises the valve 46 having a boss 69 provided with a by-pass port 70 communicating with the bore of the valve. The by-pass port 70 is closed by a tamper proof plug 74 having an outwardly facing wedge-shaped end and interior threads 83. In order to remove the plug to divert the flow of gas along the by-pass line the tool attached to one end of the by-pass line is screwed on to the boss 69, a cap 76 having first been removed. A wedge shaped end of the tool is screwed into engagement with the plug which is then unscrewed from the boss.
Patent GB-1240550-A (GB)
Title: Improvements in or relating to processes of and furnaces for consumable-electrode-forming cast metal ingots
IPC: C22B9/20
Filed: 1968-12-04
Abstract: 1,240,550. Casting processes. ALLEGHENY LUDLUM STEEL CORP. 4 Dec., 1968 [29 Dec., 1967], No. 57691/68. Headings B3F. [Also in Divisions H3-H5] In a consumable electrode arc furnace the consumable electrode 30 is made positive relative to the molten pool 28 and a metal oxide is added to the pool so that more heat is dissipated in the electrode tip 2 than in the molten pool. The metal oxide is selected from barium oxide, calcium oxide, nickel oxide, strontium oxide, thorium oxide, titanium oxide, cerium oxide or caesium oxide. The oxide may be added to the molten pool in granular form during the initial stage of operation, during hot-topping, or may be added continuously. Preferably a tube or tubes 64 of the same metal e.g. steel, as the electrode 30 and containing compacted oxide may be secured to the electrode so that oxide is continuously added to the molten pool as the electrode tip and tube or tubes 64 melt. The electrode 30 is raised and lowered by a motor 44 controlled by a conventional arc voltage control system 48. By providing oxide packed steel tubes 64 at the top of electrode 30 and making electrode 30 negative, the voltage is reduced when the oxide is released, the arc is stabilized and ideal hot topping conditions are achieved. The chamber 18 may be evacuated or filled with argon which has the effect of pinching the arc away from the crucible wall 12.
Patent GB-1163020-A (GB)
Title: Improvements in or relating to Road Studs
Inventor: GRIMSDELL JAMES ROLAND
IPC: E01F9/07
Filed: 1966-12-29
Abstract: 1,163,020. Road marker studs. BECKETT, LAYCOCK & WATKINSON Ltd. 13 Dec., 1967 [29 Dec., 1966], No. 58091/66. Heading E1G. In a self-cleaning reflective stud adhered or riveted to a road surface 12, a circular rubber plunger 13 carrying one or more reflectors 15 and seating on a base plate 10 fixed in a rubber moulding 19, has a turned-up annular edge 17 which, as the plunger is depressed, rises and lifts one or more wiper blades 20 formed on the moulding 19 so that the height of the wiped surface is greater than the stroke of the plunger. As shown the reflector 15 comprises a glass annulus reinforced by a wire ring, the wiping blade 20 being also annular.
Patent GB-1441946-A (GB)
Title: Rotary swaging dies
IPC: B21J13/02
Filed: 1973-12-14
Abstract: 1441946 Swaging dies STEVENS & BULLIVANT Ltd 24 Sept 1974 [14 Dec 1973] 58123/73 Heading B3H A rotary swaging die 10 of the type with a tapering recess 14 has the closed end of the recess defined by a die insert 18 which is releasably fixed to the die. The insert is positioned by bolts or dowels 20 and may be made of tungsten carbide or high speed steel. Two dies are used in combination to taper the end of a tube. After a large amount of use the recess 14 may be reground for tapering larger tubes.
Patent GB-1244975-A (GB)
Title: Benzodioxane derivatives
IPC: C07D513/10
Filed: 1968-12-11
Abstract: 1,244,975. Benzodioxane derivatives. YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd. 11 Dec., 1968 [11 Dec., 1967; 13 Dec., 1967], No. 58916/68. Heading C2C. Novel compounds of formula and acid addition salts thereof wherein R<SP>1</SP> is H, Cl, methyl or methoxy, R<SP>2</SP> is H, C 1-4  alkyl, benzyl or phenyl optionally substituted by Cl, CF 3 , methyl or methoxy, A<SP>1</SP> is -CH 2 -, -CH 2 CH 2 -, -CO-, -CH 2 CO- or -CH(OH)CH 2 -, A<SP>2</SP> is -CH 2 -, -CH 2 CH 2 - or -CH(CH 3 )- and Z is -S-, -SO- or -SO 2 -, are prepared by reacting the compounds of formulµ wherein Y is a reactive radical such as halogen or methyl- or p-tolylsulphonyloxy, or by reaction of a compound of formulµ with HS-A<SP>2</SP>-COOH and R<SP>2</SP>NH 2  optionally with salt formation. 2 - (4 - Oxopiperidinomethyl) 1,4 - benzodioxane is prepared by reaction of 1,4-benzodioxan - 2 - yl methyl methane sulphonate and 4,4-diethoxypiperidine followed by acid hydrolysis. Pharmaceutical compositions in conventional forms for oral or parenteral administration an having vascodilator activity comprise an above novel compound or salt and a carrier or adjuvant.
Patent GB-1422065-A (GB)
Title: Monoazo dyestuffs containing trifluoromethyl and substituted-  sulphamoyl groups
IPC: C09B29/01
Filed: 1973-12-21
Abstract: 1422065 Monoazo dyestuffs containing trifluoromethyl and substituted-sulphamoyl groups BAYER AG 21 Dec 1973 [23 Dec 1972] 59300/73 Heading C4P Novel dyestuffs of the formula (wherein X is C 2 -C 4  alkylene, arylene or arakyllene, all of which are optionally substituted; Y is -SO 3 H or, if X is arylene, -SO 3 H or -SO 2 NHSO 2 R 6  in which R 6  is alkyl or aryl; R 1  is H or optionally substituted alkyl; R 2  is H, Cl, acylamino or optionally substituted alkyl; R 3  and R 4  are each H or optionally substituted alkyl but are not both H; and n is 1 or 2) are prepared by conventional coupling of a diazotized aniline with an N-substituted aniline. They are suitable for dyeing natural and synthetic fibre materials, particularly synthetic polyamides. Specification 1,422,066 is referred to.
Patent GB-1364108-A (GB)
Title: Power and heating unit
IPC: F28F13/06
Filed: 1971-12-22
Abstract: 1364108 Tubular heat exchangers STALLAVAL TURBIN AB 22 Dec 1971 [23 Dec 1970] 59555/71 Heading F4S [Also in Division F1] In a plant including an axial flow steam turbine 1 and a heat exchanger 4, the heat conducting medium flowing through the tubes 8 of the latter is heated in at least two stages by exhaust steam taken from the turbine at different pressure levels by dividing the turbine outlet into at least two parallel flow channels by means of annular partition walls 12, 13 on the stator and rotor blades respectively. The walls 12, 13 merge with a fixed wall 14 defining chambers 10, 11 which direct the respective flows into chambers of heat exchanger 4 separated by a partition 9. At least one blade stage 16 is provided in the lower pressure flow channel. In a modification (Fig. 2, not shown) four parallel flow channels lead to the corresponding stages of the heat exchanger.
Patent GB-597516-A (GB)
Abstract: 597,516. Cash-registers. ERICSSONS KASSAREGISTER AKTIEBOLAG, L. M. Dec. 13, 1944, No. 25058. Convention date, Dec. 13, 1943. [Class 106 (i)] A cash register is characterised in that when no amount key is depressed, the machine is caused in a cycle of operation to perform a total-taking operation automatically without the depression of a total-taking key. On the depression of the multiple-items key 1, Fig. 1, a spring-loaded flap 3 falls in front of a pin 2 on the key stem to hold the key depressed. Depression of an amount key 15 depresses its associated locking bar 14, a projection 19 of which engages a projection 13 on a bar 8 spring-pressed to the left. At the operation of the machine by turning the crank or depressing the motor key, a cam 11 rotates without affecting the bar 8 and the selector rack 20 of the kind-of-operation bank is arrested in multiple-item position by the stem of the key 1. If, on the other hand, no amount key is depressed, then the projections 19 and 13 do not engage and when a pin 10 on the bar 8 drops off the high point of the cam 11, the bar 8 slides to the left to rock the flap 3 and release the key 1, if the key has been depressed. The rack 20 rises to its full extent and multipleitems total-taking ensues, irrespective of whether the key 1 has been actuated or not. During each machine cycle, a lever 37, Fig. 2, rocks a shaft 29 about another shaft 31 to reset any amount bars 38 and locking bars 14 which have been displaced. Operation of the manual correction key 34 has the same effect. A cam 41 on the shaft 29 also restores the bars 39, 40 of the clerks' and transaction banks, except when the multiple-items key 1 has been depressed, when a pin 26 on a bar 25 rotates the shaft 29 so that the cam 41 is clear of the bars 39, 40, whereby the setting of keys in the clerks' and transaction banks is maintained until the key 1 is released in a total-taking cycle. The amount keys are locked against depression until a key in the clerks' or transaction banks has been depressed to raise a bar 46, Fig. 3, clear of a projection 51 on a spring- pressed composite bar 43, 44, projections 42 of which normally underlie the key locking bars 14, but which move to the right under spring action when-projection 51 is freed. Towards the end of the cycle, after the bars 14, 46 have been restored in known manner, a lever 54, which may be identical with lever 37, restores the composite slide 43, 44. Instead of making the release of the multiple items key 1 dependent on the amount keys, it may depend on the clerks' or transaction keys. The construction of Fig. 3 may be used between two or more key banks, so that keys in the various banks must be depressed in a predetermined sequence.
Patent GB-1375380-A (GB)
IPC: D02G1/08
Filed: 1971-12-23
Abstract: 1375380 False-twisting yarns; friction surfaces TEIJIN Ltd 23 Dec 1971 [24 Dec 1970 25 Dec 1970] 59917/71 Headings D1F and D1D A process for false-twisting a yarn comprises passing a continuous filament yarn Y between the frictional engaging surfaces of two frictional rotors 6, 7 of the same diameter and which face each other with the rotary shafts not on the same axis and rotate in opposite directions to each other, the yarn being fed to the said surfaces at a speed at least equal to 500 metres per minute, and a tension F 1  being imparted to the yarn in a fialse-twisting zone, the tension F 1  satisfying the relation 0.85> F 1 >6.35 x 10<SP>-4</SP>V-0.1 where V is the yarn feeding speed in metres per minute. The yarn is preferably withdrawn from the frictional engaging surfaces at a tension lower than the tension F 1 . The yarn is preferably withdrawn from the frictional engaging surfaces at a tension lower than the tension F 1 . The frictional rotors 6, 7 may be wetted with an inert liquid, e.g. water, or aqueous solution of spinning oil, preferably by means of a cord 13 and tank 14 for the liquid. In the case that the rotors are wetted, the liquid is removed from the yarn downstream of the rotors by means of a compressed air jet 8; the air may be heated or not. The yarn Y is heated on heater 4 prior to contacting the rotors 6, 7. In an alternative embodiment, the rotors are cooled by compressed air jets directed towards the non-opposing portions of the rotor surfaces. The rotors preferably comprise a substrate with a rubber or elastomeric material adhered thereto. A cover wheel may surround the substrate and rubber or elastomer, the rubber or elastomer projecting beyond the cover wheel in the axial direction. The rotors may be mounted on ball bearings or pneumatic bearings, one of the rotor shafts being slidable in the axial direction.  The yarn may be composed of polyethylene terephthalate or nylon. The ratio of the yarn feed speed to the speed component of the peripheral speed of the frictional rotors at right angles to the direction of yarn feed is preferably in the range 0.7 to 0.9, and the ratio of the yarn feed speed to the speed component of the peripheral speed of the frictional rotors in the yarn feed direction is preferably in the range 1.05 to 1.40.
Patent GB-1318225-A (GB)
Title: Method for producing biaxially molecularly-oriented poly-epsilon- caproamide resin film
IPC: B29C48/10
Filed: 1970-12-30
Abstract: 1318225 Biaxially stretching polyamide films KOHJIN K K 30 Dec 1970 [30 Dec 1969 24 Feb 1970] 61721/70 Heading B5B A process for producing a biaxially orientated film of poly-#-caproamide resin comprises biaxially stretching a substantially amorphous unstretched tubular film of poly-#-caproamide substantially free from any hydrogen bonding and having a water content not more than 2% based on the weight of the film (prepared by melt-extruding a poly-#-caproamide through an annular die and quenching and solidifying the extruded tubular film) the film being heated preferably by contact with a heating gas at 45 to 70 C. and preferably 50 to 60 C. during stretching. The film is simultaneously stretched in both the longitudinal and the transverse directions by introducing a gas into the inside of part of the tubular film between a low speed feeding part of the film and a high speed take-up part of the film. The heating zone has a length in the direction of motion of the film of not more than 5 times and preferably 2 to 3 times the diameter of the unstretched tubular film. The tubular film is produced by quenching and solidifying a molten tubular film extruded downward from the ring-shaped orifice of an annular die by means of an internally cooled mandrel having a substantially circular crosssection and comprising a first section having a gradually increasing diameter and a second section for controlling the folding diameter of the film, the first section having an angle of inclination of the surface to a plane perpendicular to the axis of the mandrel of not more than 45 degrees and a radius of curvature of not more than 5 mm. at a shoulder part of the mandrel which first comes into contact with the molten tubular. The cooling mandrel is internally cooled by means of cooling liquid or also the film is cooled through direct contact with a cooling liquid from the outside by providing an external cooling liquid table surrounding the cooling mandrel. The biaxially molecule-oriented film of poly-#-caproamide resin is then heat-set at a film temperature from 90 C. to less than the melting temperature of crystals in a humidity atmosphere high enough to keep the water content at least 1% by weight of the film preferably 2% to the equilibrium water absorption content (usually 8 to 9%) at the time of heat setting while preventing the film from any shrinkage in both longitudinal and transversal directions.
Patent GB-750292-A (GB)
Abstract: 750,292. Solid fuel stores. C. U. R. A. PATENTS, Ltd. Sept. 12, 1951 [Aug. 25, 1950], No. 21146/50. Class 126. A solid fuel stove for room and/or water heating comprises an elongated and inclined fire, chamber 2 to contain the fuel bed with a fuel charging opening 3 and a damper controlled primary air inlet 4 at its upper end and a flue opening 6 at its lower end a secondary air inlet 15 being arranged so as to direct on to the burning fuel adjacent the flue opening a jet of air, a grate 7, 8, being provided at the lower end of the fire chamber beneath the flue opening with a closable air inlet 17 in the stove casing 1 to admit air to the grate. The upper wall 10 of the fire chamber may have corrugations on its lower surface. The secondary air inlet may also be damper controlled. The stove may be adapted for water heating.
Patent GB-2002974-A (GB)
Title: Direct current power transmission system
IPC: H02J1/00
Filed: 1978-08-18
Abstract: A d.c. power transmission system of the kind comprising rectifier and inverter stations A, B, each having a current regulator 3 and a limit angle control device 8, 9, the current regulators being set with a current order with a certain margin  DELTA I between the rectifier and inverter sides, which current order comprises a first (main current controlling) order 33 and a second order 21 for modulating the current order in dependence on an operation magnitude in an a.c. network 2 connected to a converter station, control signals being transmitted to at least one of the stations by a telecommunication link 22, 34 and further, in dependence on the limit angle control and said margin, one station determining the transmission voltage, whereas the remaining stations are individually current determining. In the event of drop out of the telecommunication link 22, 34, the station B which is connected to the a.c. network 2 which determines the second order is forced to become current determining by making another station A voltage controlling by reduction of its maximum voltage while at the same time the current order is established in this station as the sum of a certain margin  DELTA I and a pre-planned current value. <IMAGE>
Patent GB-2034186-A (GB)
Title: Adjustable coupling
IPC: A63H33/10
Filed: 1978-11-21
Abstract: A coupling for effecting releasable interconnection between two or more members (not shown) comprises two hemispherical shells 1, 2 releasably connected together, preferably by a bolt 6, to form a sphere, each shell having one or more slots 3, 4 within which a hollow connection piece 5 is adjustably secured. A member to be joined is received in sliding fit in the free end (9, figure 3, not shown) of the connection piece 5, which may include a support sleeve (12) to receive a bolt 13 which co-operates with a nut 14 within the sphere to secure the connection piece in position. <IMAGE>
Patent GB-2008829-A (GB)
Title: Acoustic Encoding Apparatus
IPC: B41J5/08
Filed: 1978-11-21
Abstract: Encoding apparatus, e.g. for a business machine keyboard includes a resilient striker (for each key) for inducing diverging sound waves within a rod by impact with it. Transducers positioned along the rod on each side of the striker and at unequal distances from it, convert the sound wave fronts into a first and a second output signal which respectively start and stop an oscillator-driven binary counter (to indicate the location and thus identity of the actuated key). <IMAGE>
Patent GB-2042122-A (GB)
Title: Extruded cushion V belt
IPC: F16G5/08
Filed: 1979-02-12
Abstract: A V-belt of the type which possesses at least one cover layer 1, 2, at least one tensile layer 3, 4, and a cushion layer 20 is improved by forming the cushion layer 20 (irrespective of any internal material enclosed therein) of an undifferentiated homogeneous structure free from internal layers or residual layers or voids. Preferably the cushion layer contains transverse orientation and most preferably it contains linear reinforcing elements such as linters transversely to the longitudinal direction of the belt. Such belts can be made by slicing a cylindrical composite. This is made by winding inside-out upon a building drum 16, firstly the cover layers 12, secondly the tensile layers 3, 4 and by thereafter adding the cushion layer 20 which is introduced over the drum as a preformed cylindrical extrusion inherently possessing lengthways orientation and optionally possessing reinforcing linters orientated along its length. <IMAGE>
Patent GB-2014525-A (GB)
Title: Water spray suppressing mud guard for a motor vehicle
IPC: B62D25/16
Filed: 1979-02-14
Abstract: A mud guard for a motor vehicle incorporates a curved trough (2) and a stratum (3) of filtering material fitted within the trough. The stratum (3) may be spaced from the bottom of the trough so as to leave a space (5) between the stratum and the bottom of the trough. An opening (6) may be formed in the side of the trough, said opening leading from the space (5) between the stratum and the bottom of the trough. Discharge ducts may lead out of the closed ends of the trough to one side of the trough. <IMAGE>
Patent GB-2043244-A (GB)
Title: A process for the determination of two or more components in a liquid sample and a reagent kit for carrying out such a photometric determination
IPC: C12Q1/54
Filed: 1979-02-15
Abstract: A process for the photometric determination of two or more components in a liquid sample comprises addition of reagents for the different components and measurement of the light absorption of the respective reaction products in a measuring cell, the reagents for the different components being added to one and the same sample with the composition of the reagents so chosen that the separate components for the different determinations do not interfere with one another, absorptions of the respective reaction products being measured in this sample.
Patent GB-2044014-A (GB)
Title: Piezoelectric vibration motor
IPC: H01L41/09
Filed: 1979-03-08
Abstract: A piezoelectric vibration motor comprises a multi-stage concentrator (1) of torsional vibrations. One stage (2) of the concentrator (1) contacts a piezoelectric cell (5), and takes up vibrations therefrom. Another stage (3) of the concentrator is fashioned as a ring resonator of torsional vibrations, and contacts and drives a rotor (9) arranged coaxially with the concentrator (1). The first stage (2) is provided with oblique slots (4) for the purpose of transforming longitudinal vibrations into torsional vibrations. In Fig. 2 (not shown), a first stage (12) is provided with quarter-wave rods (14) for the same purpose. The vibration motor is mainly intended for use in sound-recording and -reproducing devices, for example, in electric playback devices. <IMAGE>