baber/WOPTO huggingface dataset:
Patent GB-1183644-A (GB)
Title: Seal.
IPC: E21B33/00
Filed: 1967-11-15
Abstract: 1,183,644. Joint making packing. ROCKWELL MFG. CO. 15 Nov., 1967 [3 Jan., 1967], No. 52074/67. Heading F2B. [Also in Division E1] Annular packing 40 between concentric stationary members 2, 4 comprises retainer rings 32, 34 and a resilient backing ring 38 shown in Figs. 2 and 3 respectively before and after compression by the retainer rings.
Patent GB-1273330-A (GB)
Title: Regulating means for apparatus for spraying workpieces with comminuted material
IPC: B05B5/16
Filed: 1969-04-21
Abstract: 1,273,330. Spraying powders. ATLAS COPCO A.B. 21 April, 1969 [26 April, 1968; 14 Jan., 1969; 27 March, 1969], No. 52343/71. Divided out of 1,271,731. Heading B2L. Means for regulating the output of a mixture of powder and air from an injector 95 of a spraying plant comprises a trigger 82 which controls two valves 84, 85, air supply valves 89, 90 controlled by the valves 84, 85 and check valves 93, 94 which feed the air to the injector 95. When the trigger 82 is only partially depressed valve 84 only is opened and air passes from supply bore 86 through a pressure reducing valve 92, supply valve 89 and check valve 93 to the injector. When the trigger is further depressed both valves 89, 90 are opened. The control system can be used in a spraying apparatus which is essentially similar to that described in Specification 1,271,731 except that instead of the turnstile valve a butterfly valve is provided at the base of the hopper.
Patent GB-1083935-A (GB)
Title: A method of extracting nucleosides and/or bases which are components of nucleic acids
IPC: C12P19/32
Filed: 1965-12-09
Abstract: Nucleosides and/or purine or pyrimidine bases are extracted from aqueous solutions thereof with tri-(C2- 5 alkyl) phosphates, preferably in the presence of one or more neutral salts.  After separation from the aqueous phase, the phosphate solution of the nucleoside or base may be re-extracted with an aqueous solvent. Compounds specified as suitable for such extraction include adenine, adenosine, cytosine, cytidine, guanine, guanosine, hypoxanthine, inosine, isocytosine, 5-methylcytosine, orotidine, thymine, thymidine, uracil, uridine, xanthine, 7-methylxanthine, xanthosine, 5-amino - 4 - imidazolecarboxamide riboside and 21, 31 - isopropylidene - O - guanosine.  The latter compound is prepared by oxidizing 2 - mercapto - 21,31 - isopropylidene with H2O2 and heating the product with aqueous ammonia.
Patent GB-1047080-A (GB)
Title: Process for separation of nickel from cobalt in ocean floor manganiferous deposits and product thereof
IPC: C22B47/00
Filed: 1964-12-24
Abstract: Nickel is separated from cobalt in ocean floor magniferous deposits by breaking up such ore, differentially leaching the manganese phase including the nickel from the iron phase including the cobalt, then removing and processing the manganese phase to remove the nickel and separately processing the solid iron phase to obtain the cobalt.  A slight excess of sulphur dioxide or nitrogen dioxide is percolated through the agitated aqueous slurry of crushed ore, which may have been subject to reduction roasting, until a solution having a maximum concentration of manganese, nickel (and copper) and a minimum of iron and cobalt as rolls is obtained.  The pH of the slurry is controlled solely by the reaction between the gases, the water and the dissolving elements and is < 7 while manganese, nickel and associated elements are dissolving.  The Ni can be recovered from solution by precipitation and separation of Cu with H2S, followed by precipitation of Ni with hydrogen gas or the Mn can be separated by differential thermal reduction.  The Co is recovered by standard acid leaching of the dewatered, filtered and washed solid tails.  The process may be carried out batchwise or continuously.
Patent GB-1472680-A (GB)
Title: Process for producing cholesterol oxidase
IPC: C12N9/04
Filed: 1975-12-23
Abstract: 1472680 Determination of cholesterol ester &c ONO PHARMACEUTICAL CO Ltd 23 Dec 1975 [27 Dec 1974] 52553/75 Heading G1B [Also in Division C3] Cholesterol oxidase is made by extraction from a cultivation of Schizophyllum commune (IFO 4928). Ester type cholesterol may be converted into free type cholesterol and estimations made using cholesterol oxidase thus prepared in a 0À4 M phosphate buffer (pH 5À2) at 37‹C. Hydrogen peroxide produced is decomposed with a peroxidase and the oxygen generated accepted by a dihomogen e.g. o-anisidine to oxidize it and permit estimation by colonsimetric methods.
Patent GB-1237829-A (GB)
Title: Apparatus for quick freezing of aqueous solutions or suspensions to be submitted to lyophilization
Inventor: RIGOLI MARIO
IPC: F26B5/06
Filed: 1969-10-27
Abstract: 1,237,829. Refrigerators. M. RIGOLI. 27 Oct., 1969 [5 Nov., 1968; 16 Oct., 1969], No. 52622/69. Heading F4H. Apparatus for freezing aqueous solutions or the like comprises a tank tiltable about a horizontal axis 25 and closed by a removable airtight cover 18 which houses at least one frame 25 which is rotated at variable speed by a motor 19 and belt system through a shaft 24 extending through the base of the tank. Liquid is frozen whilst being spread in thin layers within vials or the like (not shown) supported in bored trays mounted in the frame 25 by the rotary action, and the freezing process is performed either by circulation of cold air within the tank produced by a fan 32 mounted on the cover blowing air over cooling coils 28 and distribution means 31, or by cooling the frame 28 (Fig. 3) by means of a refrigerant introduced through the shaft 24. In a further modification, a plurality of cooling frames of figure-of-eight shape are separately or severally driven within the tank.
Patent GB-1504175-A (GB)
Title: Central dictation system
IPC: H04M11/10
Filed: 1975-12-23
Abstract: 1504175 Centralized dictation systems DICTAPHONE CORP 23 Dec 1975 [27 Dec 1974] 52674/75 Heading H4K  In a centralized dictation system including at least one record/reproduce station 18 and at least one remote dictation station 10, control signals take the form of constant currents of different magnitudes generated at 10 and decoded at 18, each different current magnitude being indicative of at least one different function, e.g. re-wind, record, playback, to be performed at a station 18. The current generator 56 forms the subject of Specification 1,504,176. Bascially, it comprises a constant current source (102) Fig. 3 (not shown) into whose output may be switched any one of a plurality of resistors (114-124), the resistor value determining the magnitude of the constant current supplied over the control line 46 to the station 18. The decoder 78 receives on line 46 control signals from a remote station. Each signal is a constant current which may have one of three magnitudes, and may be either unmodulated or may have a tone signal superposed thereon. Hence six different signal conditions can be distinguished. An incoming signal is converted to a voltage at 150, any tone component being shunted off through band pass filter 154. After passage through a low pass filter 152 the voltage signal is applied to a threshold circuit 160 comprising three differential amplifiers 162-166, each having a different reference level. A discriminating arrangement including transistors 212-232 ensures that even if more than one threshold is exceeded an output will only be produced from that circuit branch I, II or III corresponding to the highest exceeded threshold. This output is gated at one of the gates 242-252 with a signal, derived from 154 and 156, indicating the presence or absence of a tone, to produce a function signal which is then transmitted to the appropriate part of the record/reproduce station. Priority operation.-A privileged user is provided at his dictation station with a priority key. Depression of this key, after a connection has been made to a station 18, causes the dictation station to be connected, via the station 18, to a priority record/reproduce station, Fig. 6 (not shown).
Patent GB-1019430-A (GB)
Title: Gun mounting
IPC: F41A27/08
Filed: 1964-12-30
Abstract: 1,019,430. Gun mountings. KELLER & KNAPPICH G.m.b.H. Dec. 30, 1964 [Jan. 14, 1964], No. 52806/64. Heading F3C. A mounting for quick-firing guns on armoured vehicles comprises a rotatable platform 2 supporting the trunnion plates 3 outside the armoured interior of the vehicle, the gun 5 enclosed by an armoured housing being mounted between the plates by means of trunnion bearings 7 so as to be vertically pivot. The armoured housing closely surrounds and supports the gun in a cradle, the trunnion bearings extending from the housing being of open-ended hollow construction to allow ammunition to be fed therethrough to the gun. The plates 3 are arranged to cover the open end of the bearings 7 whilst maintaining sufficient space to permit passage of ammunition from below the rotatable platform to the hollow bearings. The ammunition is fed by guide members 6 from a box 18 mounted below an upright 14 on which are mounted the elevating gear 10, 11, the training gear 12, 13, the sighting device 21, 20, and a seat 15, 16 and foot rest 17 for the gunner.
Patent GB-1415531-A (GB)
Title: Method and apparatus for use in testing bodies having curved surfaces
IPC: G01N29/27
Filed: 1972-11-15
Abstract: 1415531 Ultrasonic inspection devices ultrasonic probes SCANNING SYSTEMS Inc 15 Nov 1972 [17 Nov 1971] 52846/72 Headings H4D and H4J A body having a generally circular section peripheral surface is inspected by transmitting into it an ultrasonic pulse at an angle such that surface waves are produced on the body and such that ultrasonic energy penetrates the body to a substantial depth and is refracted to travel along a closed path whereby part of the energy migrates towards the surface to reinforce the surface wave energy, the reinforced energy being subsequently detected. An in-rail testing station, Fig. 1, for inspection of moving railway wheels 40, includes a support rail 106 between the ends of two running- rail sections; a flexible boot 250 which is filled with liquid couplant and houses a transducer probe; and couplant sprays 192, 193. The probe, Fig. 8, has two piezo-electric transducers 122, 124 each with a urethane coating 123, 125 and a tungsten-loaded elastomer damping backing 138, 139. A mask 126 of urethane in which are dispersed nitrogen-filled phenolic micro-bubbles directs the transducer beams and reduces inter-transducer cross-talk. The mask is supported in a gimbals arrangement 216, 218, 220 which allows the probe to pivot, when contacted by a wheel rim 38, to give optimum probe alignment irrespective of the amount of rim wear. Test procedure.-By pulsing transducers 122, 124 alternately, a wheel is tested in turn by pulses travelling in opposite directions about its rim. The transducer orientation is such that surface waves are induced in the rim running surface 38 and shear waves are produced which penetrate more deeply into the rim. The energy of the latter waves eventually migrates towards the rim running surface, and reinforces the surface waves. For a given pulse transmission by one transducer, echo pulses from rim defects are received back at that transducer and a series of through-transmission pulses are received at the other transducer as the ultrasonic pulse makes successive circuits of the rim. The time between successive through-transmission pulses is measured digitally to indicate in which of four or more ranges the wheel diameter lies. Each through-transmission pulse has two or more peaks in its envelope, these peaks arising from energy returned from the rim running surface and the wheel flange respectively. The interval between the two peaks of the first through-transmission pulse is determined by a ramp generator to provide a measure of the amount of rim wear. Paint sprays or a recorder are actuated if significant flaws or rim wear are detected. A circuit checks that effective flow and wear tests have been made. For testing wheels moving at high speed, two testing stations are provided in respective spaced sections of the rail; clockwise travelling test pulses being used at one and anti-clockwise at the other. Details are given of logic circuitry for controlling the test sequence and of AGC and pulse-gating arrangements (Figs. 17A-17E, not shown).
Patent GB-1236863-A (GB)
Title: Storage container for liquefied gas
Inventor: JACKSON ROBERT GLOVER
IPC: F17C3/06
Filed: 1969-10-31
Abstract: 1236863 Liquefied gas storage containers CONCH INTERNATIONAL METHANE Ltd 31 Oct 1969 53380/69 Heading F4P An above- or in-ground storage container for liquefied gas has a pressure-tight roof 3 from which a ceiling 10, comprising insulated panels 16, is suspended by hangers 9, the panels being free to move relative to each other and the hangers on temperature change. The hangers form a square lattice and each carry a cruciform housing 13 into which frame members 12 are fitted, the panels being mounted on the members by means of flanges 18. A bracket 23 connecting the hanger and housing is provided with spacers 24, the relative dimensions and the coefficients of expansion of the spacers and hangers being such that the ceiling is at a constant height, and centering devices 28 on the ceiling ensure that it is correctly positioned above the storage space defined by itself and a tank 5 which is separated by insulation 4 from an outer tank 2. Alternatively the bracket of each hanger may carry two vertically separated plates between which insulated panels having tubular edges are held. Layers of insulating material 19 may be applied to the panels before or after assembly, and the panels may be triangular.
Patent GB-1330866-A (GB)
Title: Manufacture of heat exchangers
IPC: F28D7/16
Filed: 1970-11-12
Abstract: 1330866 Making heat exchangers; coiling L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 12 Nov 1970 [13 Nov 1969] 53990/70 Headings B3A and B3E A method of making a helical-tube heat exchanger comprises mounting a core 1 vertically on a base 24, and winding at least one tube 2 around it by establishing relative rotational and translational motion between the tube and core, whereby the tube forms a helix having an axis coaxial with the longitudinal axis of the core. This eliminates the tendency of the core to bend when mounted horizontally in conventional apparatus. The tube 2 is supplied from a spool 16, which is suspended from a member 14<SP>1</SP>. A rotary device 8, comprising a fixed lower section 19 and an upper section mounted on rollers 18, rotates the spool 16 around the core. As the spool is rotated, hydraulic jacks 12 raise a platform 4, on which the device 8 is mounted, and an operator guides the tube 2 on to the core 1. The location of the tube may be indicated by a template on the core or the tube may be guided into hollows 26 in metal strip uprights (28), Fig. 2 (not shown). Each spool may be provided with more than one tube, and there may be more than one spool. A roller device may be located between the spool and the core to perform one or more of the following operations on the tube; cleaning, straightening, pre-bending, flattening, guiding or tensioning.
Patent GB-1477377-A (GB)
Title: Steel rod and method of producing steel rod
IPC: C21D8/06
Filed: 1974-12-16
Abstract: 1477377 Steel rod KOBE STEEL Ltd 16 Dec 1974 [17 Dec 1973 (2)] 54180/74 Heading C7A [Also in Division B3]  A steel rod of composition:- Fe and impurities balance, having a diameter of at least 9 mm, a tensile strength of at least 115 kg/ mm.<SP>2</SP> a substantially pearlitic microstructure and which is drawable without re-heating. The rod may be prepared by hot rolling a billet at 1100C to 1600C to rod form, water quenching to 800- 850C and subsequently normalizing in either still air or by forced air cooling. The rod may be stress relieved at 350C and subjected to at least 35% reduction of area during subsequent drawing operations without re-heating.
Patent GB-544314-A (GB)
Abstract: 544,314. Cash registers. KOOPERATIVA FORBUNDET FORENING, U.P.A. Nov. 22, 1940, No. 16766. Convention date, Sept. 29, 1939. [Class 106 (i)] A safety device is provided connected to at least one of the sliding detents locking the control keys in depressed position so that unless the key is fully depressed the start key cannot be operated. On a plate 8 is pivoted an angle lever 9 one arm of which is pivotally connected to a long rod 10. A fin 11 on the other arm engages a recess in the detent 12 of the key bank 2. The rod 10 extends through an aperture in the frame 14 so that the said cam lies in the path of movement of a projection 16 bent from a rockable member 15. When the keys 5 and detent 12 are in exact locking position, the above path is unobstructed. If a key 5 is only half depressed, the pin 11 will not be able to engage its recess and the rod will not be rocked out of the path of the projection 16 and thus the start key, depression of which rocks the member 15, cannot be depressed.
Patent GB-1152376-A (GB)
Title: Improvements in or relating to Trans Stilbene Derivatives
IPC: C07D309/12
Filed: 1966-12-06
Abstract: 1,152,376. Trans-stilbene derivatives. SYNTEN CORP. 6 Dee., 1966 [7 Dec., 1965; 22 June, 1966], No. 54582/66. Heading C2C. Novel trans-stilbene derivatives of formula wherein R<SP>1</SP> and R<SP>2</SP> are H or C 1-6  alkyl and at least one of R<SP>3</SP> and R<SP>4</SP> is cyclopentyl, tetrahydrofuran-2-yl or tetrahydropyran-2-yl while the other may be H, a hydrocarbon carboxylic acyl group of less than 12 carbon atoms or one of the above, are prepared by modification or introduction of the R<SP>3</SP> and/or R<SP>4</SP> group, for example reaction of a compound where R<SP>3</SP> and/or R<SP>4</SP> is H with cyclopentyl halide, dihydrofuran or dihydropyran, optionally followed by esterifioation of a remaining R<SP>3</SP> or R<SP>4</SP> if hydrogen or saponification of remaining R<SP>3</SP> or R<SP>4</SP> if acyl optionally additionally followed by etherification or esterification. Monoacylhydroxy compounds are prepared as intermediates by reaction of one equivalent of acid chloride and one equivalent of the dihydroxy compound of above formula (R<SP>3</SP>= R<SP>4</SP>=H), e.g. 3-(p-acetoxyphenyl)- and 3-(ppropionoxyphenyl) - 4 - (p - hydroxyphenyl) - 3-hexene.
Patent GB-1412269-A (GB)
Title: Louver assembly
IPC: F24F13/15
Filed: 1972-11-30
Abstract: 1412269 Ventilators FORD MOTOR CO Ltd 30 Nov 1972 [7 Jan 1972] 55236/72 Heading F4V A louvre assembly comprises a housing 12, vanes 36 linked to at least one pair of common gang bars 48, 50 by flexible hinges 46, projections 56 from at least two vanes 36 mounted in openings 30 in the housing 12 for pivotal movement of the vanes 36, at least one bar 48, 50 being formed with teeth which engage grooves 26 on a surface of the housing 12 to hold the vanes in any selected position. The openings 30 are each formed in a resilient tab 32 formed by a cut-out portion 34. The housing 12 and the assembly of vanes 36 and bars 48, 50 are each integrally moulded from a plastics material. The teeth and grooves may extend across, as shown, or longitudinally of the housing 12.
Patent GB-1488369-A (GB)
Title: Continuous process for producing polysiloxane oils
IPC: C08G77/10
Filed: 1974-12-23
Abstract: 1488369 Preparation of liquid polysiloxanes GENERAL ELECTRIC CO 23 Dec 1974 [14 Jan 1974] 55512/74 Heading C3T Polysiloxanes of viscosity 3-50,000 cp./25‹ C. are continuously prepared by passing into a first column maintained at 150-200‹ C. a polysiloxane feed of [R 2 SiO] x , HO(R 2 SiO) y H, (R 3 Si) 2 O and/or R 3 SiO(R 2 SiO) z SiR 3 , wherein R is a C 1-15  alkyl, alkenyl or cycloalkyl radical, x is 3-10 and y and z are 1-10, optionally together with up to 1 wt. per cent of the siloxane feed of a diatomaceous earth and up to 1 wt. per cent of a hydroaluminium silicate (e.g. montmorillonite) activated with HCl or H 2 SO 4 , of acid equivalent 5-35 mg. KOH/g. and particle size 10-80 microns, removing therefrom a siloxane fluid containing less than 1000 p.p.m. of water, optionally to a surge tank, then passing the fluid into a second column at 150-200‹ C. packed with the acid activated hydroaluminium silicate defined above so as to provide 10- 200 p.b.w. of silicate per 100 p.b.w. of siloxane fluid resident, and continuously removing the desired siloxane product, preferably to a stripping column to remove low-boiling materials. Preferably the residence times in the two columns are 0À5-5 hours and 10 mins.-2 hours, and the inlet pressure for the second column is 15-100 p.s.i.g. with a one-atmosphere outlet pressure. In the two examples a mixture of siloxanes HO-(Me 2 SiO) 10-20 H and (Me 2 SiO) 3-8  containing 4À5 wt. per cent of Me 3  SiOSiMe 3  (Example 1), or of HO(MeViSiO) 10-20 H and (MeViSiO) 3-8  containing 10 wt. per cent of Et 3 SiOSiEt 3  (Example 2), is fed with c. 0À1 wt. per cent of H 2 SO 4 -treated hydroaluminium silicate and c. 0À05 wt. per cent of a diatomaceous earth to a column at 150-160‹ C. with a residence time of 1 hour, and the product is removed to a surge tank at 150‹ C. and thence at 25 p.s.i.g. to a second column packed with the same acid-treated clay and diatomaceous earth in 2 : 1 wt. ratio, at 160‹ C. with a residence time of 1 hour, and thence to a stripping column at 300‹ C. and 5 mm.Hg to give products of 130 or 350 cps./25‹ C.
Patent GB-1159494-A (GB)
Title: Ionisation Gauges
Inventor: BUCKINGHAM JOHN DOBLE
IPC: H01J41/14
Filed: 1966-12-12
Abstract: 1,159,494. lonization monometers. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 11 Dec., 1967 [12 Dec., 1966], No. 55551/66. Heading H1D. An ionization gauge having a filamentary cathode 1 (shown in end view) includes a pair of parallel electron collector anodes 3 and a pair of parallel ion collector electrodes 2, the said two pairs of electrodes being disposed at rightangles to each other to define a box-like region through which the filamentary cathode passes. The filament 1 of platinum 10% rhodium alloy coated with yttrium oxide is tensioned by a wire spring at each end. The anodes 3 are mounted at the edges of an aperture in a plate 4, and the ion collectors 2 are connected together by a strap 5. In an alternative embodiment (Fig. 3, not shown), the filament 1 is tensioned by an S-shaped spring at one end, the anodes 3 are formed integrally with the plate 4, and the ion collectors 2 are flat plates. The construction is stated to extend the linear measuring range from 10<SP>-6</SP> torr to pressures as high as 1 torr.
Patent GB-1209395-A (GB)
Title: Pilfer-proof closure and method for its manufacture
IPC: B65D41/34
Filed: 1968-11-22
Abstract: 1,209,395. Forming apparatus for a bottle cap; stamping. CONTAINERS Ltd. 22 Nov., 1968 [7 Dec., 1967], No. 55570/68. Headings B3A and B3Q. [Also in Division B8]  A forming apparatus produces a bottle cap of the type having an upper portion 27 and a skirt 28 provided with internal score lines 30. A blank disc 15 is positioned under the forming apparatus so that a punch 12 can cut and form a cup as it descends in co-operation with a block 11. Longitudinal extensions (18), Fig. 3 (not shown) on the block 11 cause the scoring 30. Alternatively the block 11 comprises apertures, and movable score-forming members positioned internally of the block which are adapted to move outwardly after the formation of the cup. A trim ring 20 is disposed below the block 11. The circumferential slit line comprising bridges 25, 26 and slots 24 is formed after the cup is removed from the block 11.