baber/WOPTO huggingface dataset:
Patent GB-1094943-A (GB)
Title: Azo dyestuffs containing at least two phthalimide residues
Inventor: HORSTMANN WALTER
IPC: C08K5/3417
Filed: 1966-08-22
Abstract: The invention comprises azo dyestuffs, free from sulphonic acid groups, of the formula <FORM:1094943/C4-C5/1> wherein the R's are identical or different aromatic radicals, the X's are identical or different substituents, A is a carbocyclic or heterocyclic radical and m is 0, 1, 2, or 3.  They may be obtained by reacting a monoazo dyestuff of the formula <FORM:1094943/C4-C5/2> or a functional derivative thereof, with a diamine of the formula H2N-A-NH2. Examples are given for the preparation of the dyes. They are useful for colouring plastics, lacquers and papers, and for the production of printing inks and pigment pastes.  Monoazo dyes of Formula (II) or their functional derivatives are obtained by diazotizing optionally substituted 3-aminophthalic acids or their functional derivatives and coupling with 2-hydroxy-naphthoic acid-3-arylides, the components being free from sulphonic acid groups, and further reacting if necessary, to form the functional derivatives.ALSO:Polyvinyl chloride or grafted polymers of acrylonitrile-butadiene-styrene are coloured with azo dyestuffs free from sulphonic acid groups, of the formula <FORM:1094943/C3/1> wherein the R's are identical or different aromatic radicals, the X's are identical or different substituents, A is a carbocyclic or heterocyclic radical and m is 0, 1, 2 or 3. Examples are given in which it is stated that particular dyes may be incorporated into one of the above polymers.
Patent GB-1355134-A (GB)
Title: Pneumatic control circuits
IPC: F15C4/00
Filed: 1971-08-11
Abstract: 1355134 Fluid-pressure servosystems J C ECKARDT AG 11 Aug 1971 [13 Aug 1970] 37728/71 Addition to 1286123 Heading G3P A pneumatic controller has a differential pressure amplifier 1 providing an output y in line 10a in response to pressures established by a pair of pressure dividers constituted respectively by restrictors 2, 3 and 4, 5. A desired value w is applied at restrictor 4, and a negative feedback pressure derived from time delay unit T V  and buffer amplifier 7 is applied at restrictor 5. An actual value x is applied at restrictor 2, and a positive feedback pressure derived from line 15 by time delay unit T N  and buffer amplifier 6 is applied at restrictor 3. The amplifiers 6, 7 have internal feedback applied via respective pressure dividers 13, 14 and 18, 17. Each of the amplifiers has balls 23 controlling flow to and from the respective output passage. In a modified controller, buffer amplifier 7 and time delay unit T V  are omitted and the time derivative of the actual value x is applied at restrictor 2. A twostage amplifier 1 is used in this case.
Patent GB-1142555-A (GB)
Title: Nickel-cobalt steels
Inventor: FLOREEN STEPHEN
IPC: C22C38/10
Filed: 1967-08-16
Abstract: 1,142, 555. Ni-Co-Mo steels. INTERNATIONAL NICKEL Ltd. Aug. 16, 1967 [Aug. 25, 1966], No. 37798/67. Heading C7A. Steel age-hardenable in the martensitic state has the following weight percentage composition:- Ni 14-22 C 0-0À15 Co 12-25 Si 0-1 Mo 2-4 Mn 0-1 Ti 0-0À4 W 0-2 Zr 0-0À1 B 0-0À01 V 0-2 Be 0-1 Mg 0-0À025 Cu 0-6 Cr 0-3 Nb 0-3 Al 0-0À4 Ta 0-4 Fe and impurities - balance. The steel may be homogenised at 1260‹ C., solution-treated at 760‹ -879‹ C. and aged at 370‹ - 540‹ C. It is suitable for the production of forgings, castings, plate, landing gear, die blocks, machinetool parts, and fasteners.
Patent GB-972501-A (GB)
Title: Dispensing of gas charged liquids
IPC: B67D1/04
Filed: 1960-11-03
Abstract: 972,501. Forcing liquids by gaseous pressure. REYNOLDS METALS CO. Nov. 3, 1960 [Nov. 4, 1959], No. 37871/60. Heading F1R. In a beer container for storing in a domestic refrigerator and having a flexible bag 18 containing a pressurized gas, e.g. carbon dioxide, for dispensing the beer, the delivery conduit 46 is tapered and has a pressure-reducing, flowcontrol valve 52 at its inlet to prevent excessive foaming during delivery. The pressure of the beer is reduced to substantially atmospheric during its passage through conduit 46, foam produced by the pressure reduction in passing through valve 52 being reabsorbed by the beer during its passage through conduit portion 47, Fig. 3. Valve 52 comprises a flexible, apertured disc 54, the aperture size varying inversely with the container pressure. Delivery valve 16, Fig. 2, has a snap action and may be provided with a sealing wire and padlock to prevent unauthorized use. The container is filled and bag 18 inserted, with solid carbon dioxide, through aperture 14 closable by plug 22. The container may be of aluminium and conduit 46 of moulded nylon. U.S.A. Specification 2,454,929 is referred to.
Patent GB-949517-A (GB)
Title: Electrical timing device for photographic exposure
IPC: H05G1/42
Filed: 1961-10-24
Abstract: 949,517. Photo-electric exposure control. AGFA A.G. Oct. 24, 1961 [Oct.28, 1960], No.38095/61. Addition to 878,102. Heading G1A. [Also in Division G2] The device of the parent Specification for timing the exposure of photographic material is modified in that the means for varying the potential on an electrode of a valve in dependence upon the Schwarzschild coefficient of the photographic material comprise at least two resistance-capacity components, the capacitors thereof being connected in series. During exposure the photo-cell 28 charges a condenser 27 until the thyratron grid 37 rises to the potential of cathode 29, firing the valve to energize a relay 23 which extinguishes the printing lamp or operates a shutter. The cathode potential is the algebraic sum of the tapping potential of potentiometer 51 and the potential on condensers 32. The switches 23c, 23d are opened at the start of exposure and condensers 32, 34 charge to vary the cathode potential. The charing rate and the charging voltage are set by setting resistors 33, 35 and potentiometers 46,47 which are coupled to potentiometer 51, to allow for any particular Schwarzschild coefficient. Differences in spectral sensitivity of photo-cell and film may be corrected in the same way. The invention may be applied to X-ray photography and to colour printers employing simultaneous exposures by providing three timing devices or employing sequential exposure by providing means for automatically setting the timer in accordance with the Schwarzschild coefficient of each photosensitive layer. Specifications 817,277 and 863,606 also are referred to.
Patent GB-846782-A (GB)
Title: Improvements relating to lifts
Inventor: ELVY STEPHEN THOMAS
IPC: B66B13/24
Filed: 1957-12-12
Abstract: 846,782. Paternoster lifts. HALL Ltd., J. & E. Dec. 12, 1958 [Dec. 12, 1957], No. 38657/57. Class 78 (1). In a paternoster lift there are provided on the cages and/or the lift shaft movably mounted members which when contacted by a passenger trying to enter or leave a cage not positioned at a landing stage actuate a switch or other control member to stop the driving motor of the lift. As shown, each cage has a pivoted floor portion 6 from which depends a hinged flap 5, while a flap 13 pivoted to the cage roof extends upwards and overlaps the flap 5 on the next cage. If a passenger wishing to enter a descending cage puts his foot between two cages the flaps 5 and 13 and the floor portion 6 of the respective cages are moved to the dotted line position so that levers 8 linked respectively to the flap 13 and floor portion 6 are pivoted to cause rollers 7 on the ends of levers 8 to engage an endless cable 10 held in tension between a resiliently mounted pulley 11 at the top of the lift and a fixed pulley at the bottom of the lift. As a result the pulley 11 is pulled downwards and operates through an operating lever (Fig. 4a, not shown) a switch to disconnect the driving motor. A spring is provided to return the flap 13, while the flap 5 and floor portion 6 normally return by gravity, but if not fully returned are positively returned at the upper or lower end of the lift by a cam 14 engaging a peg 15 carried by the flap 5. The cam 14 may be resiliently mounted at 17, Fig. 3, so that if the flap 5 jams the cam will swing about a pivot 18 and operate a switch 19 to switch off the driving motor. Each landing stage also has a pivoted portion 3 which pivots upwardly and switches off the driving motor if a passenger tries to step out of an upwardly-moving cage before reaching the landing stage.
Patent GB-1179307-A (GB)
Title: Encoding Binary Information Signals.
IPC: H04L25/49
Filed: 1967-08-23
Abstract: 1,179,307. Digital transmission systems. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES. 23 Aug., 1967 [24 Aug., 1966], No. 38755/67. Heading H4P. Prior to transmission, binary data is converted to multi-level data in which one level is zero and in which there are 2p further levels, each level + q having a corresponding level - q of the same significance. The binary data is first converted to an intermediate signal having (p + 1) levels which is then converted to the (2p + 1) level signal. The latter conversion takes place according to one of three rules, depending on the required spectral characteristics: (a) successive elements in the same level in the (p + 1) level signal are converted to the corresponding level in the (2p + 1) level signal but have opposite signs; or (b) an element in the (p + 1) level signal is converted to the corresponding level in the (2p + 1) level signal and has a sign which is opposite to that of the sum of the levels of the (2p + 1) level signal since the conversion started if the level of the element is lower than the value of this sum; or (c) the value of the sum in (b) above is minimized, and if the sum becomes zero the sign of the next element in the (2p + 1) level signal is made opposite to that of the nearest preceding element having a level other than zero. Transmission may take place via two orthogonal carriers. At the receiver the multilevel signal is converted back to binary. The receiver may contain error-detecting circuitry which prevents errors becoming cumulative.
Patent GB-1276539-A (GB)
Title: Accelerator for gypsum plaster
Inventor: KINKADE WILLIAM ARTSMAN
IPC: C04B28/14
Filed: 1969-08-01
Abstract: 1276539 Plaster accelerators UNITED STATES GYPSUM CO 1 Aug 1969 [19 Aug 1968] 38770/69 Heading C1H A plaster accelerator is obtained by grinding a charge containing gypsum and a sugar until the surface area is substantially increased and heating under conditions precluding dew point formation to calcine partly the dihydrate. The charge can be anhydride containing combined water and so equivalent to having a gypsum content, or it can be a mixture of e.g. gypsum, sugar and sand. Boric acid is optional.
Patent GB-1363558-A (GB)
Title: Application of bearing material
IPC: B23K20/00
Filed: 1972-08-21
Abstract: 1363558 Bearings GULF & WESTERN METALS FORMING CO 21 Aug 1972 [25 Aug 1971] 38833/72 Heading F2A [Also in Division B3] A bearing member is made by applying a tube of aluminium alloy bearing material 52 to the surface 39 of a cylindrically shaped opening which extends through a body. The surface of the body is heated to 500 to 700 F. (260 to 391 C.) and a tube of the bearing material is placed in the opening so that one end of the tube coincides with one end of the opening, and the other end of the tube lies intermediate the ends of the opening. Pressure is applied to the tube so as to press it against the surface of the body and to reduce its thickness and extend it along the opening, the zone of application of pressure progressing through the opening. The tube is stretched thereby exposing fresh, unoxidized fresh metal at the surface of the tube adjacent the surface whereby the material is bonded to the surface under the pressure at the elevated temperature. Pressure is applied to the tube by a part-spherical mandrel 48.
Patent GB-1521331-A (GB)
Title: Process for manufacturing high-yield pulps
IPC: D21C3/22
Filed: 1975-09-22
Abstract: 1521331 Pulp manufacture MO OCH DOMSJO AB 22 Sept 1975 [23 Dec 1974] 38855/75 Heading D2W Pulp having a yield of 70-93% is prepared from lignocellulosic material by a process in which a first stream of lignocellulosic material is washed, steamed, digested to a yield of 65-92%, and mixed with a second stream of undigested lignocellulosic material without intermediate washing; the mixture is heated to 363-473K in a pressure vessel to effect further deliquification; and the resulting product is mechanically defibrated.
Patent GB-1015285-A (GB)
Title: Process for preparing pin a high specific activity free from p
IPC: G21G1/02
Filed: 1962-10-15
Abstract: 1,015,285. Transmutation of elements. NIHON GENSHIRYOKU KENKYO SHO. Oct. 15, 1962 [Dec. 13, 1961], No. 38932/62. Heading G6P. The preparation of <SP>32</SP>P is effected by the nuclear reaction using the Szilard-Chalmers process. The present process differs from that described in Specification 765,489 in that it is free from <SP>33</SP>P, as natural phosphorus consists of 100% <SP>31</SP>P. Anhydrous phosphorus oxyacid compounds, sealed in a polyethylene tube, are used as the target substances and are irradiated in a nuclear reactor. The irradiated salt is cooled, dissolved in a chloride solution and then passed through a strongly basic anion-exchange resin.
Patent GB-1144587-A (GB)
Title: Improvements in or relating to bait cutting machines
IPC: A01K97/04
Filed: 1966-09-01
Abstract: 1,144,587. Bait cutting machine. T. CHRISTIANSEN. 1 Sept., 1966 [14 Sept., 1965], No. 39010/66. Heading A4C. A machine for cutting small fish (shown in outline) into pieces for use as bait in line fishing comprises a pair of oppositely rotating shafts 1, 2 driven by motor 11, each shaft carrying a set of radial or circular knives 3, the angle between the shafts being adjustable between 30 and 45 degrees. The fish is fed through an adjustable opening in the lid of the machine, guides 10 extending from the lid in a comb-like manner between the blades. The shafts slope down away from the driven end. Guide 12 is shaped to allow fish to be split lengthwise by the adjacent blade. Adjustable flaps (14) are provided below the knife blades to separate heads and tails from the rest of the cut fish.
Patent GB-898689-A (GB)
Title: Improvements in or relating to spark arrester or dust separator apparatus
Inventor: GREEN KENNETH DAVID
IPC: F23J15/02
Filed: 1959-11-18
Abstract: 898,689. Centrifugal separators. PRATDANIELS (STROUD) Ltd. Oct. 31, 1960 [Nov. 18, 1959], No. 39136/59. Class 23. [Also in Group X] A centrifugal spark arrester and dust separator comprises a main dust collection chamber 11 into which projects an inlet pipe 10 and outlet pipe 12, the lower end of which is coaxially mounted within the inlet pipe but spaced therefrom to form a space 13 for the passage of dust into the chamber 11 which has been centrifugally extracted from the gases entering through the inlet pipe by a whirling gas flow produced by the tangential introduction of air through nozzles 20 in the inlet pipe by means of a fan (not shown). The dust on entering the chamber is deflected by baffles 16 to deposit the heavier dust particles or sparks and the finer dust or sparks are carried into secondary collection chambers 15 for collection in hoppers 17 by a flow of air induced by the upward flow of gases through the inlet pipe producing a suction effect at the upper end of a tubular member 19 coaxially arranged in spaced relation within the lower end of the inlet pipe 10, which member communicates through conduits 18 with the chamber 15. Instead of the nozzles 20 and fan, stationary inclined blades may be arranged in the pipe 10 to produce the whirling gas motion and instead of two secondary collection chambers any other number may be utilized.
Patent GB-1522883-A (GB)
Title: Illumination device for a photographic copying apparatus
IPC: G03B27/52
Filed: 1976-09-22
Abstract: 1522883 Photo-copying DURST AG 22 Sept 1976 [22 Sept 1975] 39288/76 Heading G2A An illumination device for a photo-copier comprises two alternative light shafts of different crosssectional areas (corresponding to different original formats), one shaft having a fixed axis and being relatively large enough to contain the other shaft and the other shaft being laterally movable into and out of operative position with respective partial, collapse and reformation of said one shaft. A diffusion screen for either or both sides of either or both shafts may be secured to the movable shaft. As shown, a shaft 1 has a fixed screen 11 and a side 3 which is movable from stops 4 Fig. 1 with a shaft 5 which is integral with side 3, has guide bars 6 and carries screens 9 and 10 for shafts 1 and 5 resp. The shafts are of square cross-section Fig. 3 (not shown). In another embodiment Figs. 4 and 5 (not shown), movement of the smaller shaft into operative position effects rotation of a screen (12), pivotally connected to the larger shaft, out of operative position.
Patent GB-1476975-A (GB)
Title: Test and diagnosis device in combination with a data-processing unit
IPC: G06F11/267
Filed: 1974-09-10
Abstract: 1476975 Computer fault diagnosis COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE CII HONEYWELL BULL 10 Sept 1974 [10 Sept 1973] 39518/74 Heading G4A A test and diagnosis device for a data processing unit P1 (Fig. 1) includes a second processing unit P2 to which the first is connected by (1) a bidirectional link DL for the transmission of control signals for the exchange of information, (2) a channel EDG for transmission of test and diagnosis instructions and data from P2 to channels E which are connected to the elements of processor P1 to be tested and (3) a channel SDG for transmission of test and diagnosis data on channel S from the tested elements to processor P2, information on the latter two channels being validated by a circuit 10. A switch 14 may be operated to connect channel 15 to channel E so that maintenance may be effected using a manual control panel PM. Display of information received in channel S from the processor unit P1 is effected using channel 16. In operation the unit P1 signals on line e that an abnormal operation has been produced. The unit P2 then proceeds to a program of test and diagnosis by a succession on input/output microdialogues sent to a circuit 11 where they are decoded and used to control circuit 12 (for input) and circuit 13 (for output). Circuit 12 comprises a plurality of units (121-125, Fig. 3, not shown) supplying information representing for example the address to which data is to be sent, the data to be used, the method of diagnosis or an order, e.g. stop, start for the processor P1.
Patent GB-870606-A (GB)
Title: Hydrocyclones
IPC: B04C5/081
Filed: 1956-12-28
Abstract: A hydrocyclone for classifying fine particles has a maximum internal diameter of 5 to 30 m.m, a length of 10 to 30 times the maximum internal diameter, and a feed inlet area equivalent to that of a circle whose diameter is from 1/4 to 1/8 of the maximum internal diameter.
Patent GB-1097335-A (GB)
Title: Float-actuated valves
Inventor: PERCIVAL ERIC ROBERT
IPC: F16K31/26
Filed: 1963-10-08
Abstract: 1,097,335. Valves. CELANESE BUILDING COMPONENTS Ltd. Oct. 7, 1964 [Oct. 8, 1963], No. 39554/63. Heading F2V. A float-actuated valve co-operates with a seat 5 held in place against an adapter 6 in the valve body, by a nut 8; the moving closure member 9 carries a resilient seating-washer 10 and is of cruciform cross-section, the vertical bar of which incorporates a slot 15 for connection to the float arm. All parts of the valve except the float arm 11 and nut 16 are formed from a moulded thermoplastic material which is inert to the chemical and physical actions of water, e.g. P.V.C., acetal resin, acrylonitrile butadiene styrene copolymer. The washer 10 may be of rubber and the seat of brass.
Patent GB-831360-A (GB)
Title: An improved apparatus for winning coal and other minerals
IPC: E21C27/38
Filed: 1957-12-20
Abstract: 831,360. Mineral - mining machines. STAHLWERKE BRUNINGHAUS G.m.b.H. Dec. 20, 1957 [Dec 20, 1956], No. 39690/57. Class 68(1) A cutter-bearing arm 6 pivotally mounted on a carriage 2 scrapes mineral from the buttock of a longwall face as it is swung to and fro by piston-cylinder motors 7, 17 and 18. The carriage 2 is moved by a rack and pinion drive 13 along rails secured to a sledge 1 transversely of the direction of advance of the sledge 1 over the mine floor. The sledge 1 is advanced step by step due to inter-action of two groups of expandable props 3, 3<SP>1</SP> and 5 extending between roof and floor and expandable jacks 4, 14 extending between the sledge 1 and the rear group of props 5. The mineral is received from the cutter arm is retained and loaded sideways to a face conveyer c by inclined ramps mounted on the carriage 2 and extending over the motors 7, 17 and 18.
Patent GB-1155185-A (GB)
Title: Improvements in the Aiming of Weapons
Inventor: SUNDSTROM ERIK WILHELM
IPC: F41G3/22
Filed: 1966-09-06
Abstract: 1,155,185. Sighting system for weapons. BOFORS A.B. 6 Sept., 1966 [6 Sept., 1965], No. 39883/66. Heading F3C. A sighting system for weapons comprises a sight adapted to move in conformity with the barrel 3 of a gun. The sight is provided with a reticule which is mounted for movement in a horizontal and a vertical direction, these movements being effected through a transmission system comprising electromagnetically operated clutch mechanisms (Fig. 2, not shown). When the sight is directed at a target and the sight and barrel are tracking together an extra component of movement is given to the reticule by the transmission system in a direction relatively opposite to that of the barrel during a certain period of time (α.t s ), where α is a predetermined constant and t s  is the estimated time of flight of the projectile. The component of movement is such that the angular velocity of the reticule will be α/1+α times the angular velocity of the barrel. After the time (α.t s ) the sight and barrel are held in their relative positions and the sight is then lined up on the target. The time (α.t s ) is transmitted to the transmission system to actuate the electromagnetic clutches by a timer 14 which may be calibrated in terms of target range. The constant α preferably has a range between 0.5 and 3. The transmission system is linked to a motor 4 which drives the gun in azimuth and to a motor 7 which drives the gun in elevation.
Patent GB-1062888-A (GB)
Title: Dense sodium carbonate
Inventor: PANTING ANTHONY CHARLES MORTIM
IPC: C01D7/18
Filed: 1964-10-01
Abstract: Dense Na2CO3 (i.e. bulk density about 60 lb./cu ft.) is made by reacting NaHCO3 (e.g. crude bicarbonate from the ammonia-soda process) with aq. NaOH (40-70% by wt.) such that Na2CO3 is formed as the stable phase; thereafter changing the temperature and composition of the system such that Na2CO3.H2O is formed as the stable phase, which is separated and heated to give anhyd. dense Na2CO3. The reaction may be carried out in three ways:-(a) using NaOH in 10-15% excess of stoichiometric at 100-105 DEG  C. to form Na2CO3, and then making Na2CO3.H2O the stable phase by lowering the temperature to 3-7 DEG  C. below the transition temp. at which Na2CO3 and Na2-CO3-H2O are in equilibrium, which is at first about 97 DEG  C. but is reduced as more Na2CO3.H2O is formed due to the increase in effective concentration of NaOH, again lowering the temperature below the transition temperature eventually forming the monohydrate completely; (b) as (a) but conversion to monohydrate effected by successive additions of NaHCO3 stoichiometrically equivalent to the free NaOH at the transition temperature; (c) reacting stoichiometric proportions of NaHCO3 and aqueous NaOH at 90 DEG  C. at least and insulating the system against heat loss to enable the heat of the reaction to superheat it above 107.5 DEG  C. to allow all the NaHCO3 to react to form Na2CO3, thereafter cooling to below 107.5 DEG  C. whereby Na2CO3 is transformed into Na2CO3.H2O, which is separated and heated to yield dense Na2CO3.