baber/WOPTO huggingface dataset:
Patent GB-1516340-A (GB)
Title: Anionic polyurethanes
IPC: C08G18/38
Filed: 1975-11-13
Abstract: 1516340 Sizing paper with anionic polyurethanes AKZO NV 13 Nov 1975 [7 Dec 1974] 46878/75 Heading D2B [Also in Division C3] Paper is sized with a sizing solution containing at least one anionic polyurethane prepared by reacting (A) a monomeric, aliphatic dihydroxyl compound containing an aliphatic substituent containing at least 10 carbon atoms with (B) a polyisocyanate to form an NCO- terminated preadduct and then either (1) chainextending the preadduct either with (a) an aliphatic monomeric diol containing an acid group capable of salt formation and converting the acid group completely or in part into a salt by reaction with a base, or with (b) an aliphatic monomeric diol which contains an acid group which has already been completely or partly neutralised to the corresponding salt group; or (2) reacting the preadduct first with a monomeric aliphatic trihydroxyl compound in a molar ratio of 1:1 and then with a cyclic anhydride of a dicarboxylic acid and converting the acid group formed either completely or in part into a salt by reaction with a base. In the Examples unsized raw paper is surface sized with solutions containing an anionic polyurethane prepared by reacting a glycerol monostearate (or trimethylolpropane monostearate) / tolylene 2, 4- and 2, 6-diisocyanate preadduct with either (I) the triethyl amine salt of either 2, 2'-bishydroxymethylpropionic acid or glycerol monosuccinate, or (2) with trimethylol ethane monosuccinic acid ester and then with triethylamine, or (3) with glycerol, then phthalic acid anhydride and then with triethylamine. The sizing solutions optionally contain starch degraded by oxidation, and an optical lightener.
Patent GB-1032270-A (GB)
Title: Process for preparing isoxazole derivatives of sulfanilamide
IPC: C07D261/16
Filed: 1964-11-19
Abstract: 3 - Sulphanilamido - 5 - C1- 5 alkyl - isoxazoles, optionally bearing a halogen substituent (e.g. Cl, Br or I) in the 4-position, are made by condensing a 3-amino-5-alkyl-isoxazole or the corresponding 4-halo-derivative with an N,N1-bis (4-halosulphenyl-phenyl)-urea and hydrolysing the resulting N,N1-bis[4-(4-halogenated or unhalogenated - 5 - alkyl - 3 - isoxazolyl - sulphamoyl) -phenyl] urea with an acid or alkali.
Patent GB-1159181-A (GB)
Title: Symbol Generator
IPC: G09G1/12
Filed: 1966-10-21
Abstract: 1,159,181. Cathode-ray tube displays. INTERNATIONAL STANDARD ELECTRIC CORP. 21 Oct., 1966 [23 Oct., 1965], No. 47143/66. Heading H4T. In an arrangement for producing symbols &c. composed wholly of rectilinear elements on the screen of a cathode-ray display tube by appropriate deflections of the beam such deflections are produced by supplying selectively to the vertical and horizontal deflection means during predetermined spaced intervals the output of a basic repetitive waveform generator and/or its inversion together with one of at least two steady state signals. The basic waveform is produced by a sinusoidal oscillator 3, Fig. 1, (also 13, Fig. 4, not shown) and the steady state signals are derived from the output of a bi-stable multivibrator 2 operating as a 2: 1 frequency divider supplied with the output of a free-running clock comprising multi-vibrator 1 which serves as a time base for the system. The circuit of Fig. 1, which is intended to cause the tracing of a "square" symbol, (Fig. 3, not shown), operates by supplying to the vertical and horizontal deflection connections J and H respectively, during successive clock pulse intervals, the outputs of frequency divider 2 and of oscillator 3 in such a manner that the output from divider 2 positions the electron spot on the tube screen in a required X or Y co-ordinate position whilst simultaneously, the output of oscillator 3 which is applied to the Y or X deflection means deflects the spot to-and-fro to trace a line. This arrangement may be utilized to trace symbols which require vertical and horizontal lines only and where lines inclined at 45 degrees are required the X and Y deflection means are  supplied with the output of oscillator 3 either in phase with respect to each other or 180 degrees out-of-phase by employing inverter 4 as described with reference to Fig. 4 (not shown). To position different symbols at different screen positions steady state signals derived from the B<SP>1</SP> output of frequency divider 2 via further series connected 2: 1 frequency dividers are combined with the outputs on the vertical and horizontal deflection connections J, H as described with reference to Fig. 8 (not shown). Different symbol shapes are depicted in Figs. 6, 7, 10, 11 (not shown).
Patent GB-1168264-A (GB)
Title: Explosive Cladding of Metals
IPC: B23K20/08
Filed: 1966-10-21
Abstract: 1,168,264. Welding by pressure. E. I. DU PONT DE NEMOURS & CO. 21 Oct., 1966 [23 Oct., 1965], No. 47380/66. Heading B3R. In explosively cladding a metal backer layer with one or more metal cladding layers, the metal layers are disposed parallel or at an initial angle of less than 10 degrees and the cladding conditions are such that no substantial amount of melt is formed at the interface during cladding. By "no substantial amount of melt" is meant no melt at all or an amount of melt having an equivalent melt thickness of less than 10 microns, this being obtained by dividing the total volumes of alloy by the area of the interface. The equivalent melt thickness is preferably less than 1 micron. There is preferably no diffusion at the interface and a wavy interface having a wave amplitude of at least 5 microns but not more than 50% of the thickness of the thinner layer is preferred. Ordered plastic deformation parallel to the interface is exhibited and any solidified melt is in localized regions spaced between areas of metal-to-metal metallurgical bonding. No substantial melting is obtained when the "collision velocity", i.e. the velocity with which the line or region of collision travels along the layers to be bonded is less than a critical velocity which may be 2300 to 2500 m.p.s., preferably above 1400 m.p.s., e.g. above 1900 m.p.s. The layers may be the same or different and may be alloys. The metals should preferably have a specific gravity of at least 2, e.g. between 4 and 17, especially copper, nickel, iron, silver, titanium, zirconium, tantalum, aluminium, columbium, chromium, cobalt, vanadium, platinum, gold and their alloys. Different metals should preferably have a difference not greater than 9 in their specific gravities. The "impact angle", i.e. the angle between adjacent portions of the layers at the point or line of collision is preferably 7-20 degrees for titanium and 4-18 degrees for nickel. The explosive loading is preferably at least 0À2 and up to 8 times the weight of the cladding layer. A metal base-plate 1 and a cladding plate 2 are spaced in parallel relation by crinkled metal ribbons 4 at the plate corners and the plate 2 is surmounted by granular explosive 5 in a container 6. The explosive is initiated by a blasting cap 7. Mild steel baseplates are clad with nickel plates in this way, the bonding being over more than 90% of the interface, and having equivalent melt thicknesses ranging from less than 1 micron. Mild steel is similarly clad with titanium and the equivalent melt thickness from less than 1 micron. Similarly nickel-copper; tantalumsteel; stainless steel-aluminium; titaniumstainless steel; zirconium-carbon steel and zirconium-stainless steel bonds were effected. In another example a steel plate is clad with a titanium plate, the latter being initially tilted at 4 degrees.
Patent GB-1302425-A (GB)
IPC: H01J9/227
Filed: 1970-10-06
Abstract: 1302425 Luminescent screens RCA CORPORATION 6 Oct 1970 [6 Oct 1969] 47443/70 Heading H1D [Also in Division G2] A photographic method of making a screeen by coating a support surface with a photosensitive film including a polymeric material, exposing the film to radiation in a desired pattern, developing the film to remove portions of it from the surface, coating the whole surface, removing the remaining portion of the film with its overlying coating to uncover areas of the surface, and depositing phosphor material on the uncovered areas; is characterized in that the photosensitive film contains 0À06-0À50 weight parts of inert light-scattering particles per part of polymeric material, the particles having a size between 150 and 5000 . The particles may be of titanium dioxide, zirconium dioxide, aluminium oxide or silicaon oxide, and their presence facilitates visual inspection of the film before and after exposure, and promotes a more uniform hardening and a better defined image of the illuminated areas of the film. The process may comprise depositing an opaque coating which fills the interstices of a multi-dot colour screen, as described in Specification 1,180,195. In one example the photosenstivie film material comprises 3À42% polyvinyl alcohol, 0À43% titanium dioxide, 0À34% ammonium dichromate and the balance water. A less water-soluble polymer may be added in an amount up to the weight of the polyvinyl alcohol, and the example quoted above may include 1À71% acrylic polymer.
Patent GB-1486199-A (GB)
Title: Electric power plant having a multiple computer system for redundant control of turbine and steam generator operation
IPC: G06F19/00
Filed: 1974-11-04
Abstract: 1486199 Automatic control of steam turbine plant WESTINGHOUSE ELECTRIC CORP 4 Nov 1974 [6 Nov 1973 #] 47571/74 Heading G3N [Also in Division G4]  A control system for a steam turbine power plant includes two digital computers one of which acts as a standby unit and has its input and output settings updated so that in the event of a malfunction of the operating computer a 'lumpless' changeover of control to the standby computer is obtained.
Patent GB-1254918-A (GB)
Title: Devices for use in assessing flow speed
IPC: G01S15/60
Filed: 1969-09-26
Abstract: 1,254,918. Doppler flow-meter. SIEMENS A.G. 26 Sept., 1969 [28 Sept., 1968], No. 47593/69. Heading H4D.  In a Doppler flow-meter, ultrasonic energy received after reflection from a moving material (e.g. blood) will have a range of frequencies depending on the distribution of component speeds in the flow and means are provided for obtaining respective measures of the intensity of the received energy at preselected frequencies. In the Fig. 1 embodiment frequency f s  (e.g. 5MHz) is transmitted by transducer 1 and demodulator 3 extracts the Doppler side-band f D  from the echo frequency band f E . To determine the average flow speed, f D  is passed to n (e.g. 12) filters 4 (e.g. with pass bands spaced by 500 Hz) tuned respectively to frequencies fa, fb ... fn, and the energies Sa, Sb ... Sn at these frequencies are measured by respective peak detectors 5 whose outputs are each multiplied at 6a, 6b ... 6n by a factor representing the interval #f between the filter tuned frequencies. The multiplier 6 outputs are added at 7 to give a signal representing  and are multiplied at 8a, 8b ... 8n by signals representing fa, fb ... fn respectively. The multiplier 8 outputs are summed at 9 to give a signal which is divided at 10 by the adder 7 output. The resulting quotient represents the mean speed and is indicated or recorded. In a simplified embodiment (Fig. 2, not shown) where #f is constant, multipliers 6 are eliminated and the multipliers 8 are replaced by weighting potentiometers.
Patent GB-1057679-A (GB)
Title: Alternating current generator
IPC: H02K21/00
Filed: 1963-12-03
Abstract: 1,057,679. A.C. generators. L.R. POWER CORPORATION. Dec. 3, 1963 [Dec. 4, 1962], No. 47611/63. Heading H2A. In a planar-air-gap machine having a rotating field, the output is varied by moving the stator coil or coils laterally in or out of the field. In Fig. 1, the coreless coil 8 is situated between field rotors 6 and turns about pivot 12a to vary the output. Automatic regulation through the transmitted torque is achieved by the use of a restraining spring 15. The adjustable stator coil may have an iron core (Fig. 4, not shown). If desired, the stator coil may be split as shown in Fig. 5, into two sectors 80, 80<SP>1</SP> pivoted at 70, 70<SP>1</SP> to move in opposite directions under the control of a linkage. An arrangement is described (Fig. 6, not shown) in which the coils move in the same direction under spring control to enable self-regulation.
Patent GB-1525926-A (GB)
Title: Means for the absorption of solar energy
IPC: F24S10/50
Filed: 1975-11-17
Abstract: 1525926 Solar heating L G LITCHFIELD 17 Nov 1975 [6 Nov 1974] 47967/74 Heading F4U A solar panel comprises a container in the form of a bag made from flexible transparent synthetic plastics material within which is contained a dark liquid, the bag being supported on a reflective backing adjacent a base of heat-insulating material. The liquid is preferably water in which is suspended or dissolved a. material to darken the water. The liquid may further include dissolved additives to inhibit degradation and prevent sedimentation. The bag includes internal divisions 11 to create a serpentine flow path 12. As shown, the bag is disposed on a backing sheet of corrugated aluminium 15 in a housing 5 having a heat insulating base 9 and two transparent covering sheets of plastics material 16. The panel may be linked to either a central heating system (Fig. 4, not shown) or a domestic water supply (Fig. 5, not shown).
Patent GB-1472675-A (GB)
Title: Treatment of chromium ore residues
IPC: C01G37/14
Filed: 1975-11-25
Abstract: 1472675 Treating chromium ore residues ALLIED CHEMICAL CORP 25 Nov 1975 48478/75 Heading C1A The solid residue obtained in the production of chromates from chromite ore by roasting under alkaline oxidizing conditions and extracting the water-soluble chromate so formed, is treated by reducing the particle size of the residue so that at least 20% by weight of the residue, dry basis, passes through a 200 mesh U.S. Standard Sieve; this reduces pollution by the bleeding of water-soluble chromium compounds when the residue is stored or disposed of. Preferably the size reduction is carried out in the presence of water, more preferably in the additional presence of acid to reduce the pH of the aqueous medium containing the size-reduced particles to 7-11.
Patent GB-1015959-A (GB)
Title: Improvements in or relating to a method for manufacturing a laminated panel having acellular internal structure
IPC: B26F1/38
Filed: 1963-12-10
Abstract: 1,015,959. Honeycomb paper. F. DIJKSTERHUIS and H. U. DIJKSTERHUIS. Dec. 10,1963 [Dec. 14,1962], No. 48680/63. Heading D2B. [Also in Division B5] In a method for making a laminated panel having a cellular internal structure, the cellular structure is formed by cutting tongues in a strip of material 21, e.g. of paper or cardboard, on a base support and pressing the residual portions of the strip between the tongues into grooves in the support and connecting an outer plate to the tongues. The strip 21 is fed from a reel 22 on to a moulding roller 19 which has a pattern of grooves as shown in Fig. 5 and passes a cutting roller 26 which forms a pattern of cuts 12 on the strip shown in thick lines in Fig. 6 and corresponding to the diagonal grooves 11 on the moulding roller 19. A roller 27 having ridges corresponding to the longitudinal and transverse grooves 10 and 9 of the moulding roller contacts the strip and presses the parts 17 and 18 of the strip in between the tongues formed by the cuts 12 into the grooves 9 and 10 causing the tongues to be bent out of the plane of the strip 21. The lips of the tongues are then bent by means of a roller 28. The strip, now in its final cellular form contacts a cardboard strip 1a coated with glue and the two are pressed together by an endless belt 29 and pass through a drying tunnel after which another strip 46 is glued to the cellular strip 21 so that a panel comprising outer layers 1a and 46 and an inner cellular structure is formed.
Patent GB-1525938-A (GB)
Title: Fluid delivery systems
IPC: F02C7/236
Filed: 1975-11-27
Abstract: 1525938 Centrifugal pumps; gas turbine engine fuel systems GENERAL ELECTRIC CO 27 Nov 1975 [29 Nov 1974] 48799/75 Headings F1C and F1G Fluid such as fuel for a gas turbine engine is delivered by a system comprising primary and booster pumps 16, 12 (which may be centrifugal) connected by a clutch 20; and a machine 14 (which may be a vane type positive displacement pump) driven as a pump by the primary pump drive-shaft 18, during a first operational mode when the output pressure of the primary pump is less than a predetermined value to pump fluid from the primary pump outlet to the system outlet, the machine 14 acting as a motor during a second operational mode, driven by fluid from the primary pump outlet to drive booster pump 12, when the primary pump output pressure reaches or exceeds the predetermined value. Lines 26, 28, 32 convey the fluid pumped by machine 14 to the system outlet during the first mode, check-valve 36 being open and check-valve 38 closed, the pressure being maintained by a valve 50 which provides a bleed path to the primary pump inlet. Booster pump 12 is driven with machine 14 via clutch 20 and pumps fluid via line 22 to pump 16 to prevent cavitation. When the predetermined pressure is reached, an actuator 48 operated by the primary pump output pressure via control means 46 disengages clutch 20, the output pressure also operating a discharge valve 44 to connect the output of machine 14 to the primary pump input causing a pressure drop across the machine which thereby acts as a motor to drive booster pump 12, valve 36 then being closed and valve 38 open. The flow to machine 14 is regulated by a restriction 55 in line 26.
Patent GB-1170663-A (GB)
Title: Process for preparing Silver Catalysts
Inventor: WATTIMENA FREDDY
IPC: C07D301/10
Filed: 1967-03-22
Abstract: 1,170,663. Silver catalysts. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 15 Feb., 1968 [22 March, 1967; 30 Oct., 1967], Nos. 13486/67 and 49261/67. Heading B1E. [Also in Division C2] A silver containing catalyst is prepared by impregnating a particulate solid porous substance with a solution of a reducible silver compound and subsequently evaporating the solvent by intimately contacting the particulate porous solid substance with a treated gaseous atmosphere under such conditions that at least 80% by volume of the liquid adsorbed by the solid porous substance is evaporated in at most 900 seconds and reduction occurs simultaneously. In a modification, the particles to be dried may fall through a heated and fluidized bed of an inert particulate solid the fluidized state of the particles being maintained by the upward stream of the drying gas. Suitable carrier materials include pumice, ceramics, SiC, SiO 2 , Al 2 O 3  and SiO 3 -Al 2 O 3 . The silver catalysts may contain promoters which include compounds of alkali or alkaline earth metals in the form of their oxides, or precursors such as hydroxides, carbonates, nitrates, acetates, &c. The silver compound is reduced to the metal or the oxide in the "shock-drying" treatment by heat or by the presence of a reducing agent. Most suitable reducing agents are polyhydric alcohols. The reducing agents and promoters are preferably impregnated during or prior to the drying treatment. Shock-drying temperatures are generally in the range 200‹ to 900‹C. The impregnated catalyst particles may have the form of pellets, spheres, rings or cylinders. Various pore volumes and surface areas are specified throughout.
Patent GB-1154824-A (GB)
Title: Solution Storage Arrangements for Absorption Refrigeration Systems
Inventor: MERRICK RICHARD HENRY
IPC: F25B15/04
Filed: 1967-10-30
Abstract: 1,154,824. Refrigerating. CARRIER CORP. 30 Oct., 1967, No. 49291/67. Heading F4H. An absorption refrigeration system comprises an analyser column 38 through which vapour from the generator 13 flows in direct contact with absorbent solution, a rectifier 35 which receives refrigerant vapour from column 38 and communicates through line 58 with the condenser 11, and a reservoir 65 which is disposed within the rectifier 35 and receives absorbent solution flowing from the analyser over a weir 76. Solution from the reservoir 65 returns to the analyser through a restricted aperture 77 beneath the weir. Weak solution is forwarded to an outlet 37 in the analyser via a conduit 36 which is in heat exchange relationship with the vapour flowing in the space between the rectifier and reservoir shell 35, 65 and with strong solution flowing from the generator to the absorber 10 through a tube 45 located within conduit 36. Absorbent condensed from the refrigerant vapour in rectifier 35 is returned to the analyser through tube 67. Solution heated in generator tube 50 is supplied to a vessel 70 within the analyser, the vessel having a perforated top to allow the escape of vapour while solution from the vessel passes through conduit 47 to tube 45.
Patent GB-1060258-A (GB)
Title: Improvements in or relating to pharmaceutical pastilles
Inventor: WEIR ROBERT FOSTER
IPC: A61K9/48
Filed: 1964-12-05
Abstract: A pharmaceutical pastille comprises an outer layer of gelatin, a minor proportion of an aliphatic polyhydric alcohol and a therapeutic amount of at least one medicament selected from antitussives, expectorants, batericides and bacteriostats, and a aqueous, liquid, demulcent core.  Specified medicaments include morphine, codeine, pholcodine, dextromethorphan, squill, apomorphine, ipecacuanha, noscapine, creosote, guaiacol, terpine hydrate, tyrothricin, gramicidin, penicillin, cetrimide and like active quarternary ammonium salts.  Constituents of the demulcent liquid may include sorbitol, chloroform and essential oils.  A local anaesthetic, e.g. benzocaine, amethocaine, benzamine or clove oil may be present in the shell or core.