baber/WOPTO huggingface dataset:
Patent GB-964236-A (GB)
Title: Process of waterproofing leather
IPC: C14C9/00
Filed: 1962-11-01
Abstract: Leather is water-proofed with an aqueous emulsion of an organic isocyanate carrying a lipophilic radical, the emulsion containing as emulsifier a sulphamido and/or sulphimido compound carrying a higher aliphatic radical.  The isocyanate may be hexyl, cyclohexyl, octyl, dodecyl, stearyl, or dodecylphenyl isocyanate. 2-10% of the isocyanate in the form of a 2-25% aqueous emulsion may be used.  The emulsifier may be prepared by reacting a saturated aliphatic hydrocarbon fraction of boiling range 200 DEG -350 DEG C. or a halogenated product thereof first with chlorine and sulphur dioxide and then with ammonia or an organic ammonia derivative containing a basic primary or secondary amino group. 10-100% of emulsifier based on the isocyanate may be used.
Patent GB-1089025-A (GB)
Title: Improvements in or relating to epicyclic gear trains
Inventor: HARDING CLIVE
IPC: F16H1/28
Filed: 1965-09-30
Abstract: 1,089,025. Toothed gearing. G. & E. BRADLEY Ltd. Sept. 30, 1966 [Sept. 30, 1965], No. 41618/65. Heading F2Q. In an epicyclic gear train comprising driving sun gear 11, driven planet carrier 14 and fixed annulus gear 23, backlash is taken up by a helical spring 21 connecting planet pinions 12, 20 rotatably mounted on a planet spindle 19, planet pinions 13, 17 being pinned to a spindle 15 which is journalled in the planet carrier 14. On assembly, the helical spring 21 is deformed elastically. In a modification, the annulus gear 23 is replaced by a fixed sun gear.
Patent GB-1337773-A (GB)
Title: Pulsed droplet ejecting system
IPC: H04R17/08
Filed: 1971-09-07
Abstract: 1337773 Reciprocating pumps CLEVITE CORP 7 Sept 1971 [9 Sept 1970] 41640/71 Heading F1A [Also in Division B8] Apparatus for ejecting small quantities of liquid e.g. drops of ink for ink jet printers and recorders, comprises a conduit 4 connected to a supply reservoir 1 and having an outlet orifice 5 and an electro-mechanical transducer 10 adjacent the orifice, electrical pulses being applied to the transducer to cause ejection of liquid. The transducer may be electro-strictive or magnetostrictive. In Fig.1, the transducer comprises Piezo-electric ceramic tubing 13 with electrodes 14, 16 across which the electrical pulses are applied, the energy of the pulses being controlled to control the size of the drops ejected. Orifice 5 is formed in a watch jewel 11. A narrow bore inlet tube 8, or a restricted inlet orifice, Fig.1b (not shown), restricts back flow of liquid. The electrical pulses have a short rise time to cause a sudden volume change of the transducer to overcome the surface tension at the orifice and eject liquid, and have a slow decoy to prevent the surface tension at the orifice being overcome and to enable further liquid to be drawn into the conduit from the reservoir. A tubular transducer with a closed end may be connected to the side of the conduit Fig.5 (not shown). In Fig.6, a ceramic disc 44 is exposed at its rim to the liquid in annular chamber 51 to draw liquid from inlet 8 and eject it through orifice 5 due to contraction and expansion of the disc when electrical pulses are applied across electrodes 58, 59. For corrosive liquids, a pipe for the liquid is secured within the transducer tube, Fig.4 (not shown). Transistor circuits for supplying the electrical pulses to the transducer are described, Figs.2 3 (not shown).
Patent GB-1123169-A (GB)
Title: Improvements in or relating to refractory compositions
Inventor: JACOBS LOUIS JOHN
IPC: C04B35/628
Filed: 1966-09-19
Abstract: A refractory composition comprises a substantially homogeneous mixture of refractory particles containing a major proportion of calcined alumina coated flint clay.  Optional ingredients are kyanite, bond clay, and water. Cooling is by using an aqueous slurry of alumina which can contain binders, e.g. alkyl celluloses, which are used in conjunction with anti-fermenting agents e.g. HCHO or H2O2. The slurry also includes surfactants, a long list being given. The refractory product can be packaged as slabs in moisture proof bags.
Patent GB-1046315-A (GB)
Title: Game
IPC: A63H15/04
Filed: 1965-10-01
Abstract: 1,046,315. Balancing games. M. I. GLASS [trading as MARVIN GLASS & ASSOCIATES]. Oct. 1, 1965 [March 16,1965], No. 41712/65. Heading A6H. Apparatus for playing a balancing game comprises a flexible support 28 mounted in member 18 which is in turn balanced on a fixed upright 16, together with an object 34 adapted to be balanced at the upper end of support 28, and playing pieces 36 for application to or removal from the member 18 by competing players, as dictated by chance apparatus, the latter preferably comprising a pack of cards bearing the relevant instructions.
Patent GB-923643-A (GB)
Title: Polymeric foam materials
Inventor: TAYLOR STANLEY DOUGLAS
IPC: C08J9/00
Filed: 1958-12-27
Abstract: Cellular polyurethanes are obtained in a two-stage process by reacting a polymer containing terminal hydroxy groups with an organic compound having at least two -NCX radicles (X being either oxygen or sulphur in each case) to form a prepolymer, dispersing therein an inert mineral oil, adding an isocyanate reactive foaming agent and curing the foam.  Suitable polymers are polyethers, polythioethers, polyesters, polyesteramides and polyamides.  Polyglycols are preferred and exemplified, and include halogen substituted polyglycols, polyether diamines and polydiglycol formals.  Aliphatic alicyclic and aromatic isocyanates are listed whilst the preferred mineral oils are liquid paraffin and liquid petrolatum.  Polydimethyl siloxane and dimethyl benzylamine may also be present.ALSO:Cellular polyurethanes are obtained in a two stage process by reacting a polymer containing terminal hydroxy groups with an organic compound having at least two-NCX radicles (X being either oxygen or sulphur in each case) to form a propolymer, dispersing therein an inert mineral oil, adding an isocyanate reactive foaming agent and curing the foam. Suitable polymers are polyethers, polythioethers, polyesters, polyesteramides and polyamides.  Polyglycols are preferred and exemplified, and include halogen substituted polyglycols polyether diamines and polydiglycol formals.  Aliphatic alicyclic and aromatic isocyanates are listed whilst the preferred mineral oils are liquid paraffin and liquid petrolatum.  Polydimethyl siloxane and dimethyl benzylamine may also be present.
Patent GB-1045559-A (GB)
Title: Improvements in or relating to an actuator
IPC: H01H13/14
Filed: 1964-10-13
Abstract: 1,045,559. Retractive switches. VITRAMON Inc. Oct. 13, 1964 [Aug. 18, 1964], No. 41807/64. Heading H2B. An actuator for a retractive switch 11 is arranged so as to minimize the transmission of vibration or shock to the switch contacts. The switch 11 is carried on a, framework. 20 having legs 22 for mounting purposes. The button 12 of switch 11 is urged downwardly by a resilient member 19a which also restrains a moving contact blade 18a from engaging a fixed contact 17a (Fig. 6, not shown). A lever 24 and a straddling U-shaped lever 25 are independently pivoted on a spindle 27 such that lever 24 engages button 12 and would operate it under action of a spring 30 were it not prevented by overlapping engagement with lever 25, oppositely urged by a spring 36 (most clearly seen in Fig. 4, not shown). Fingers 40 on lever 25 are lifted by articles passing thereunder, or by a push-button (not shown), to allow lever 24 to actuate the switch 11; the lever 25 disengages lever 24 after it has moved sufficiently to actuate the switch and then has no mechanical interaction on the button 12.
Patent GB-1022953-A (GB)
Title: New homosteroids and process for their manufacture
IPC: C07J63/00
Filed: 1962-11-06
Abstract: The invention comprises 9,10-seco-9,19-cyclopregnanes and -androstanes (i.e. 9-B-homo-19-nor-pregnanes and -androstanes) and a process for the preparation of 9,10-seco-9,19-cyclo-steroids wherein an 11-oxo- or 3,11-dioxo-9b , 19-cyclosteroid is treated with an acid and, if desired, in the resulting 11-oxo-9,10-seco-9, 19-cyclosteroid containing a double bond starting from the 10-position or a D 4-3-oxo grouping, the 11-oxo group is reduced to the 11-hydroxyl group or eliminated and/or the double bond starting from the 10-position or the D 4-double bond is hydrogenated.  The process of the invention results in the formation of a double bond which in the presence of a 3-oxo group, migrates into the 4,5-position. Suitable acids are mineral acids, strong organic acids and Lewis acids, ketals, enol ethers and enamines present being split up during the reaction. During the reduction of an 11-oxo group a 3-oxo group is also reduced, but it may subsequently be regenerated by the Oppenauer method.  An 11-oxo group is preferably eliminated by the Wolff-Kishner method, other keto groups being protected.  Starting materials for the present process may be of the androstane, pregnane, cholane, cholestane, spirostane or cardanolide series and they may contain saturated or unsaturated hydrocarbon groups, free, esterified or etherified hydroxyl groups, free or functionally converted keto groups or halogen atoms as substituents in one or more positions of the ring system or 17-side chain. In the products, a cholestane or spirostane side chain or ring-system may be degraded to a hydroxy-acetone side chain or an hydroxyl or oxo group.  Esters may be hydrolysed and free hydroxy groups esterified, a list of suitable esterifying acids being provided.  Examples are given, the products being D 4-3,11,20-trioxo - 9,10 8 seco - 9,19 - cyclopregnene; D 4 - 3,11 - dioxo - 17a  - methyl - 17b  - acetoxy-9,10 - seco - 9,19 - cycloandrostene; and D 4 - 3,11 - dioxo - 17b  - acetoxy - 9,10 - seco-9, 19-cycloandrostene and the corresponding 17b -ol.  A list of further starting materials and products is also provided.  3,11,20 - Trioxo - 9b ,19 - cyclo - 5a  - pregnane is prepared by warming the corresponding 3,20-diethylene ketal with methanolic acetic acid. Other starting materials are prepared by the processes described in Specifications 1,011,122 and 1,022,209.  The homosteroids of the invention, which may have anabolic, androgenic, gestagenic or anti-inflammatory, hypotensive or sodiouretic effect, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-928906-A (GB)
Title: Process for preventing or reducing foam formation
IPC: C11D3/00
Filed: 1961-11-24
Abstract: Polyglycol ethers of saccharides are used to inhibit foaming in liquids.  Polyglycol ethers of nonyl phenol can be used as additional foam reducing agents.ALSO:Ethylene, propylene and butylene oxides are reacted with saccharose, galactose, maltose and raffinose at 100-130 DEG C. in the presence of potassium hydroxide, sodium hydroxide or sodium methylate to give polyglycol ethers.
Patent GB-995429-A (GB)
Title: Photographic objective
IPC: G02B15/14
Filed: 1961-11-29
Abstract: 995,429. Varifocal objectives. C. HAUSER, and K. VOKENHUBER. Nov. 29,1961 [Nov. 29, 1960; April 11, 1961], No. 42630/61. Heading G2J. During adjustment of the focal length in one part of the adjustment range the spacing of two of the movable lenses is maintained constant whereas in another part of the adjustment range, the spacing between two other lenses is kept fixed. Fig. 2 shows a varifocal objective consisting of negative lens L 1a , positive lens L 1b , negative lens L 2  and positive lens L 3 . Increase of focal length to a certain value is effected by relative movement of lens L 2  and the system formed by lenses L 1a  and L 1b ,which are maintained at a fixed spacing. Any further increase of focal length is obtained by relative movement of lenses L 1a  and L 1b , the lens L 2  remaining at a fixed distance from the lens L 3 . In the objectives of Fig. 4, there is zero spacing between negative components L 2 a, L 2 b until a certain focal length is reached; further change of focal length is affected by altering the spacing between lenses L 2a , L 2b  and maintaining fixed the spacing between lens L 2a  and the positive lens L 1  which is moved together with L 2a . Lens L 3  is a fixed positive lens in this embodiment.
Patent GB-1139045-A (GB)
Title: Improvements in control wheels for use, for example, with wheel or roller conveyors
Inventor: COLLERAN BRIAN MATHEW
IPC: F16D63/00
Filed: 1966-09-24
Abstract: 1,139,045. Roller conveyers. LINK 51 Ltd. 20 Sept., 1967 [24 Sept., 1966], No. 42739/66. Heading B8A. [Also in Division F2] A control wheel which may form one of the wheels of an inclined track of a roller or wheel conveyer, for providing braking action on articles moving down the conveyer, comprises a stationary hub part 10 coupled by restraining means 48 to a rotatable rim part 12. The means 48 comprises an escapement 70, 72 driven by a gear train which steps up the rotational speed of the rim part 12. A tyre 44 which engages the articles is located in a channel formed when annular walls (24, 26), Figs. 2-4 (not shown) are secured together by rivets 38.
Patent GB-1166035-A (GB)
Title: Cyanoalkyl 2-Pyrazoline-5-One and their use as Photographic Colour Couplers
Inventor: EYNDE HECTOR ALFONS VANDEN
IPC: C07D231/52
Filed: 1966-09-26
Abstract: 1,166,035. Cyanoalkyl pyrazoline derivatives. GEVAERT-AGFA N.V. 30 Aug., 1967 [26 Sept., 1966], No. 42823/66. Heading C2C. [Also in Division G2]  2 - Pyrazoline - 5 - one compounds containing in the 1-position of #-cyano alkyl group of the formula wherein R 1  is an alkyl or aryl group and R 2  is hydrogen, or wherein R 2  is hydrogen or an alkyl group including a cyanoalkyl group and R 1  is hydrogen, which compounds preferably correspond to the general formula wherein R represents an alkyl, aryl or heterocyclic group, -NHaryl, -NHCO alkyl, -NH CO aryl,-NHCO aralkyl-NHCONH alkyl, -NHCONH aryl, -NHCONH aralkyl, alkoxycarbonyl amino, aryloxycarbonylamino or aralkyloxycarbonyl amines, including these groups carrying further substituents, may be obtained by known methods, e.g. (i) by cyclization of the appropriate #-cyano-alkylhydreajzine with an acylacetic acid ester, or (ii) by modifying a corresponding 1- # - cyanoalkyl - 3 - amino - 2 - pyrajzolin - 5 one derivative (which may be prepared, for example, by the cyolization of an appropriate hydrazine with the ethyl ester of #-imino - # - ethoxy - propionic acid). The # - cyanoalkyl - hydrazine starting materials may be obtained by reacting the appropriate α-cyanoalkene with hydrazine hydrate.
Patent GB-1320209-A (GB)
Title: Leak detector valve assembly
IPC: F17D5/02
Filed: 1970-09-08
Abstract: 1320209 Leak detectors ROSAN ENTERPRISES 8 Sept 1970 [8 Sept 1969] 43019/70 Heading G1S A system of fluid carrying pipes connected to an inlet 18 and an outlet 19 of a leak detector passes fluid through chambers 17b, 17a and around the end of an axially guided plunger 22 which is normally held away from a seat 34 by a spring 32. A leak test may be carried out by isolating any appliances connected to the pipes and manually holding the plunger down on the seat 34. If a leak is present in the system then fluid from the inlet pipe passes through a bleed hole 25 in the plunger and a nozzle 24 into a liquid 21 in a transparent cup 20. The fluid does not mix with the liquid chosen to fill the cup and the fluid bubbles through the liquid to the leak outlet and provides a visible indication. If there is no leak then no fluid-flow takes place.
Patent GB-1118626-A (GB)
Title: Improvements in or relating to the production of carbonaceous materials
Inventor: LOSTY HOWARD HAROLD WALTER
IPC: C01B31/00
Filed: 1964-10-22
Abstract: A carbonaceous material is produced by forming a mixture of less than 5% by weight of cellulosic or hemicellulosic material and more then 95% of an aqueous liquid, e.g. pure water or water and a dispersing agent (zinc chloride), dispersing the material in the liquid by subjecting the mixture to mechanical beating for 30 minutes to 160 hours, regenerating the cellulosic or hemicellulosic material by removing free water from the dispersion, drying the regenerated material at a temperature below the boiling point of water at the pressure at which drying is effected and subjecting the dried material to a decomposition heat treatment, preferably at least partly under superatmospheric pressure, up to a final temperature of 400-2000 DEG  C. in an inert atmosphere, e.g. nitrogen.  The selections of starting material, heating time and heat treatment are such as to give a product with a bulk density of 0.2-1.6 grams per c.c. and a carbon content of 75-100% by weight.  The starting material may be a -cellulose or a mixture of a -cellulose and hemicellulose containing at least 20% by weight hemicellulose, and drying may be at a temperature of at least 40 DEG  and below 100 DEG C. under atmospheric pressure.  The carbonaceous material may be shaped at the regeneration stage and machined after drying or at the completion of the heat treatment. The shaped bodies may be finally heated at a temperature from 2000-3000 DEG  C.
Patent GB-1408936-A (GB)
Title: Apparatus for sealing thermoplastic material
IPC: B65B7/28
Filed: 1972-09-19
Abstract: 1408936 Seaming non-metallic sheet material UNILEVER Ltd 19 Sept 1972 [21 Sept 1971] 43276/72 Heading B5K Apparatus for sealing together two thermoplastic layers 8, 9 comprises a heatable sealing member 1 having a jaw 2 with an elongate sealing surface 3 and an opposing sealing member 4 having a jaw formed from a strip 5 of elastic material covered with a resilient thin strip 6 of metal incorporating an elongate sealing surface 7 parallel to the surface 3, the jaws being offset relatively to each other so as to cause the surface 7 to tilt during a sealing operation, Fig. 2. In one embodiment, Figs. 1 and 2, the strip 5 is made of rubber and is vulcanized to the member 4 and the strip 6. In a modification, Fig. 3 (not shown), for sealing a lid (18) to an outwardly directed annular edge flange (12) of a filled container (13), both jaws (11), (15) are annular with the heatable jaw (11) inwardly offset with respect to the jaw (15). The layers 8, 9 may be thermoplastic film or aluminium foil coated with thermoplastic film.
Patent GB-1187253-A (GB)
Title: Improvements in Door Latches
Inventor: BERRY JOSEPH
IPC: E05C3/24
Filed: 1967-09-26
Abstract: 1,187,253. Door latches. JOHN PICKUP Ltd. 25 Sept., 1968 [26 Sept., 1967], No. 43655/67. Heading E2A. A door latch for operation by disabled persons by simply pushing the handle b<SP>2</SP>, has a pivoted latch C which is moved to the active position, Fig. 2, by engagement with a fixed roller b<SP>4</SP>, and is unlocked from a pawl-lever D by axial movement of the handle, Fig. 3, while at the same time a spring-loaded shoe d<SP>8</SP> passes over-center to rotate the latch to its inoperative position. The handle may be pulled from the other side, e.g. by a magnet. By duplicating part of the mechanism, the latch may be made suitable for a swinging door opening in either direction.
Patent GB-991890-A (GB)
Title: Improvements relating to search coil assemblies for eddy current testing
Inventor: BAREHAM FREDERICK ROBERT
IPC: G01N27/90
Filed: 1960-12-21
Abstract: 991, 890. Eddy current testing apparatus. BRITISH NON-FERROUS METALS RESEARCH ASSOCIATION. Dec. 21, 1961 [Dec. 21, 1960], No. 43940/60. Heading G1N. A coil assembly for eddy current testing comprises a pair of coil sandwiches each having a primary coil 10 sandwiched between a pair of coils 12, 14 which may all be single turn coils of 0. 002 inch axial length, the coils being screened by discs 16,18 of magnetic material of high permeability. The coils 12, 14 of each sandwich are connected in series phase-assisting and the outputs of the two sandwiches are connected differentially to give a null response in the absence of a flaw. The assembly with tubular insulated spacers is secured by thin paper discs impregnated with an adhesive epoxy resin. Each coil is an annular copper disc having a radial slit and tapered lugs for external connection, and the magnetic screens are also slit radially to reduce hysteresis losses. The primary coils are fed by a 10 kc/s oscillator through a 15 watt amplifier, and the output from the coils 12, 14 after amplification in a frequency selective amplifier 32, is balanced to give a null output in a balancing unit 33 fed also from amplifier 28 in the absence of a flow. The output is applied to a recorder 36 via a phase sensitive detector 35. The arrangement may be passed through a tube or may be passed over a rod or a plane surface.
Patent GB-1460214-A (GB)
Title: Biocidal compositions for the protection of wood
IPC: B27K3/50
Filed: 1974-10-10
Abstract: 1460214 Biocidal composition RHONEPROGIL 10 Oct 1974 [19 Nov 1973] 44001/74 Heading A5E A biocidal composition suitable for application to wood comprises by wt. (i) 5-50 parts of an oil or synthetic resin (ii) 1-10 parts of a biocidal substance, (iii) 40-85 parts of one or more petroleum type solvents, per 100 parts of components (i), (ii) and (iii), and (iv) 2-20% based on components (i), (ii) and (iii), of N- methyl-2-pyrolidone. Up to 6 parts of pigment may also be added e.g. iron oxides or carbon black. Suitable biocides are pentachlorophenol and hexachlorocyclohexane (y-isomer). The preferred solvent is white spirit and a suitable oil is pine oil and the preferred synthetic resin is an alkyd resin.
Patent GB-917321-A (GB)
Title: Improvements in hop picking machines
IPC: A01D46/02
Filed: 1960-12-21
Abstract: 917,321. Hop picking machines. BENSEMANN, E. G. Dec. 21, 1960, No. 44005/60. Class 6(3). A hop machine incorporating lateral picking units B, across the upper ends of which vine is drawn by rollers H, and a conveyer belt C which carries away the picked hops between its slats, is characterized in that rollers or octagonal baffles D are positioned as shown in the figure between the units B and the conveyer C. The rollers D are mounted to rotate in the frame of the machine. A further set of picking units B<SP>1</SP> may be disposed above the units B whereby the vine may be completely stripped. A guard I consisting of parallel rods guides the vine on to the units B and beneath this guard is a grid K and a rotary fork L which breaks down large heaps of branches and laterals and feeds them on to the belt C. A bunch roller M located behind the upper end of the last picking unit together with the roller N prevent recirculation of picked laterals. The conveyer C may be formed of chain wire mesh netting to allow hop petals and seeds to fall through.
Patent GB-1392660-A (GB)
Title: Composition suitable for use as a brazing mixture
IPC: C04B37/02
Filed: 1972-05-23
Abstract: 1392660 Brazing mixture; ceramic-metal joints VARIAN ASSOCIATES 23 May 1972 [1 June 1971] 44015/74 Divided out of 1392659 Addition to 1392659 Headings B3R and B3V The invention relates to a composition suitable for use as a brazing mixture and comprising a majority by weight of columbium (niobium) powder, and a second metal powder selected from iron and nickel and is substantially as described in the Specification 1,392,659.