baber/WOPTO huggingface dataset:
Patent GB-1219539-A (GB)
Title: A high speed camera
IPC: G03B39/00
Filed: 1969-09-24
Abstract: 1,219,539. High speed cameras. BNK INSTRUMENT CO. Sept.24, 1969 [Sept.24, 1968J, No.46914/69. Heading G2A. A high speed camera comprises a multiple reflection means 38 in the light path, for sequentially receiving and directing light on to sequential portions of the image recording means 46 in response to changes in the light path produced by the movement across it of a slit. As shown in Fig.1, light enters the camera through an objective lens 21, passes through a fixed slit 36 between two light shields 32, 33 and is reflected by two fixed mirrors 22 and 37 on to the multiple reflection means 38. From these the light is reflected through a focusing lens 45 on to a photo-sensitive film sheet 46, which may be one of a stack of such sheets in a cartridge 47. The multiple reflector 38 is shown in more detail in Fig.3, and comprises a number of narrow slabs 41 securely held in a metal block 40. The front face 42 of each slab constitutes the reflective surface, and the slabs are tilted alternately upwards and downwards, as at 41<SP>1</SP> <SP> </SP>or 41<SP>11</SP>. They are also arranged in a slightly arcuate configuration Fig.4 (not shown). Between lens 21 and the fixed slit 36 is disposed a frusto-conical ring member 23 Fig.2 having a large number of slits 27 round its periphery, and mounted at an angle, as shown, on a shaft 30, which can be driven by a motor 31. Thus the light beam, as indicated by the broken line in Fig.2, will pass through one of the slits 27 as the member 23 rotates. As this slit traverses across the light beam, the latter will be slightly changed in direction, as indicated by the "spread" of the beam as shown falling on mirror 22 in Fig. 1. The reflected beam will thus be swept across the reflecting surfaces of the reflector 38, and thus on to different areas of the film sheet 46, as indicated by the arrows in Fig.1. The alternate arrangement of sloping faces in reflector 38 will produce a double row of images, and Fig.5 (not shown) illustrates eight successive frames of a high speed phenomenon such as a bullet piercing a metal plate, arranged in two rows of four each. Various modifications are described having different arrangements of moving slits, e.g. as slits in a moving band or film-strip, Figs.8, 9, 10, (not shown) or as radial slits round the periphery of a rotating disc Fig.7, (not shown). Fig.6 (not shown) is an arrangement having two sets of moving slits, for use simultaneously.
Patent GB-960754-A (GB)
Title: Process for the preparation of bis(o-phenylenediimino) diboron
IPC: C07F5/02
Filed: 1962-12-12
Abstract: Bis(o-phenylenediimino)diboron of the formula: <FORM:0960754/C1/1> <FORM:0960754/C1/2> is made by heating a mixture of o-phenylenediiamine and a tetra(dialkylamino)diboron of the formula B2(NR2)4, wherein R represents a primary or secondary alkyl radical containing from 1 to 6 carbon atoms. Preferably a solvent is used which is inert under the reaction condtions and has a boiling point higher than that of the dialkylamine formed as a by-product, the mixture being refluxed with continuous removal of the dialkylamine. The tetra-(dialkylamino)-diboron may be used in excess of the stoichiometric amount to replace part or all of the inert solvent. Hydrocarbon and other solvents are specified.  Suitable diboron reactants are listed which can be made as given in Specification 868,191.  Detailed examples starting from tetra (dimethylamino)diboron and tetra(diisopropylamino)diboron are described.
Patent GB-1187813-A (GB)
Title: Two-Component Diazotype Material
IPC: G03C1/58
Filed: 1967-10-17
Abstract: 1,187,813. Photographic diazotype materials. KALLE A.G. Oct.17, 1967 [Oct.18, 1966], No.47243/67. Heading G2C. A two component diazotype material comprises a P(N-alkyl-N-aralkyl-amino)-benzene diazonium salt and a coupler of formula wherein R 3  is -NHCONH 2  or -COY, Y being -OH, - OCH 3 , - NH 2  -OC 2 H 5 ,-N(C 2 H 5 ) 2  -NHCH 2 CH 2 OH and R 4  being H when R 3  is NHCONH 2  and -OH when R 3  is COY and R 5  is hydrogen or halogen and as stabilizer a benzene sulphonic acid. The material may also contain a p-(N-heterocyclic)-benzene diazonium salt in a ratio of 1:1 to 1:6 with the first diazonium salt. An azo coupler of formula where R 6  is hydrogen, alkyl or hydroxyalkyl and R 7  is alkyl, hydroxy-amino-, pyrrolidino-, morpholino- or piperazino-alkyl may be present in amount up to 25% by weight based on total weight of coupler present. The material on imagewise exposure and development gives black images which may be used as a master for subsequent photographic copying. 2-hydroxy- 5 -sulphobenzoic acid is the specified sulphobenzoic acid-and a support such as transparentized rag paper or cellulose acetate containing 50-54% acetyl groups may be used. Other acid stabilizers may be used with the sulphobenzoic acid.
Patent GB-1511180-A (GB)
Title: Optical coupler
IPC: H01L31/0232
Filed: 1975-11-18
Abstract: 1511180 Coupling light guides EI DU PONT DE NEMOURS & CO 18 Nov 1975 [18 Nov 1974] 47503/75 Heading G2J Apparatus for linearly coupling light signals (e.g. in a musical instrument) between optical fibres 52 and a source, detector or further fibre 36 comprises a hollow body having a spherical reflecting surface 26. Each fibre 52 is secured in a bore 44 which is "aimed" at a window 38 behind which is located the source, detector or further fibre. Each fibre 52 terminates in a lens 54. The reflecting surface 26 may be diffusely or specularly reflective.
Patent GB-1089520-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
Inventor: RABSON EDWARD JOHN
IPC: F02B55/08
Filed: 1964-11-23
Abstract: 1,089,520. Rotary-piston internal combustion engines. BRICO ENGINEERING Ltd. Nov. 22, 1965 [Nov. 23, 1964], No.47516/64. Heading F1F. A rotary-piston I. C. engine of the kind in which a three-sided rotary piston operates in a stationary housing having an internal surface of bi-arcuate trochoidal configuration, includes a casing having a bore in which a liner is inserted with the internal surface of the liner forming the piston running track and its external surface metallically bonded in the bore. Either the bore or the external surface of the liner or both is or are provided with a metallic coating e. g., copper, by spraying, plating or brazing and after the casing is heated or the liner cooled the two parts are forced into intimate contact with each other. Heat treatment may afterwards be applied to fuse the metallic coating and heat treat the liner working surface.
Patent GB-1275376-A (GB)
Title: A high-tensile metal/fibre laminate
IPC: C22C47/20
Filed: 1970-10-07
Abstract: 1275376 Making fibre reinforced metal laminates. MASCHINENFABRIK AUGSBURG-NURNBERG AG 7 Oct 1970 [7 Oct 1969] 47793/70 Heading B3A [Also in Divisions B5 and C7] A fibre reinforced metal laminate comprises a metal or metal-alloy matrix, e.g. nickel-iron alloy with a nickel content of 30-40% by weight, having high tensile fibres having an ultimate tensile stress of at least 200 kp./min.<SP>2</SP>, e.g. of carbon, boron or a boron compound, embedded therein by means of heat and/or pressure treatment, the coefficients of thermal expansion of the fibres and the metal or metalalloy being substantially equal and being so low at temperatures occurring during the heat and/or pressure treatment that no shear stresses occur between the fibres and the matrix. The fibres may be coated with the metal or metal alloy by vapour coating or electroplating and subjected to heat and/or pressure, or layers of metal or metal-alloy may be stacked alternately with layers of parallel fibres and subjected to heat and/or pressure.
Patent GB-1464095-A (GB)
Title: Proximity detectors
IPC: H03K17/96
Filed: 1974-05-21
Abstract: 1464095 Touch responsive switching systems THORN DOMESTIC APPLIANCES (ELECTRICAL) Ltd 21 May 1974 [26 April 1974] 47992/75 Divided out of 1464093 Heading G1N [Also in Division H2]  A proximity detector for use in the power control apparatus described in the Parent Specification 1464093 comprises an insulating plate 31, first electrodes on one face of the plate and second electrodes 17, 19, 20 on the opposite face of the plate. Three proximity detectors forming "count up," "count down" and "off" switches are mounted on a glass plate 31 to form a control panel. The second electrode of each detector comprises a metallic layer 17, 19, 20, the layers being separated by a zone 18 and covered with lacquer. Similar metallic layers forming the first electrodes are mounted on the opposite face of the glass plate and are connected to current detecting switch circuits. Electrical shielding is provided by a dielectric sheet 32 and a conductive screen 33. When an operator's finger touches or is positioned adjacent one of the layers 17, 19 or 20, the capacitive charging current that flows to earth via the operator is detected by the respective switch circuit to produce an output signal.
Patent GB-1090430-A (GB)
Title: Gear cutting tools and method of sharpening same
IPC: B24B3/34
Filed: 1965-11-15
Abstract: 1,090,430. Grinding cutters. GLEASON WORKS. Nov. 15, 1965 [Dec. 24, 1964; June 28, 1965], No. 48405/65. Headings B3D and B3L. A bevel-gear-cutting tool comprises a shank 30 and relatively inclined cutting faces 26, 27 such that the edges may be sharpened by a cutting tool moved in a plane bisecting the angle between the faces without cutting away the shank. The tool is left-, or right-, hand and has sidecutting edges 12, 13 (the outer one 12 being a finishing edge), a top-cutting edge 14 and a mounting face 23. The shank 30 may be made of softer, less-expensive steel and welded or joined to the cutter portion 10. The tool, in use, is clamped by a screw 74 Fig. 9, to a T-support 73 clamped to a block 66 adjustable along a block 62 adjustable transversely and laterally on a tool slide 55. Two such tools are provided in a machine for cutting teeth in a gear G, the gear being indexed by one tooth at-a-time if finish-cutting is taking place or two teeth at-a-time for roughcutting. The cutter is sharpened by a wheel 31, Fig. 4, adjustable axially and vertically. The work is clamped on a bracket 38 adjustable angularly in conjunction with a gauge 44. In modifications, the grinding wheel may be oscillated to produce a concave or convex cutting face on the tool which may have curved edges as illustrated in Figs. 10 and 11 for producing tooth curvature modifications. In a further modification, the cutter is made in the form of a bar 200, Fig. 12. When the bar has been used to a half-way point, it is reversed and used as an oppositely-handed cutter. There is a rounded portion 207 at the base of the groove in the cutter face. In a mounting for the tool, a wedge 238, Fig. 15, can be adjusted longitudinally against a scale to adjust the tool angularly by tilting it about a surface 239. Securing screws 242 seat on a wedge block which tends to increase the clamping forces should the cutting forces tend to displace the tool.
Patent GB-1010238-A (GB)
Title: Benzenesulphonyl-semicarbazides and process for their manufacture
IPC: C07D205/04
Filed: 1962-12-21
Abstract: Compounds of the formula <FORM:1010238/C2/1> in which X and Y are hydrogen, halogen or an alkyl or alkoxy group of 1-6 carbon atoms and, if X is hydrogen Y may also be a trifluoromethyl, azide, acetyl or benzoyl group and Z is an alkylene group of 3-7 carbon atoms optionally bearing C1- 4 alkyl substituents are made by reacting a corresponding benzenesulphonamide with a bis-alkylene-carbohydrazide of the formula <FORM:1010238/C2/2> at a temperature above 100 DEG  C. and, if desired, converting a resulting salt into the free compound or into another salt, and/or converting a free compound into its salt.  The reaction is suitably carried out by heating the benzenesulphonamide, preferably in the form of its sodium salt with the bis-alkylene-carbohydrazide in equimolecular quantities in an open flask.  1,1,5,5-Bis - alkylene - carbohydrazides are made by reacting a 1,1-alkylene-hydrazine <FORM:1010238/C2/3> with a chloroformic ester.  Pharmaceutical preparations having hypoglycemic acitivity comprise the compounds prepared by the process of the invention in admixture or conjunction with a carrier.  The sulphonyl carbazides may suitably be used in the form of their salts with organic or inorganic bases or acids and the preparations preferably taken are in forms suitable for oral administration such as tablets. Reference has been directed by the Comptroller to Specifications 887,886 and 929,054.
Patent GB-983959-A (GB)
Title: Paint and similar brushes
Inventor: KIDD FRED
IPC: A46B15/00
Filed: 1962-12-22
Abstract: 983,959. Paint brushes. BRITISH BRUSH MANUFACTURERS RESEARCH ASSOCIATION. Feb. 11, 1964 [Dec. 22, 1962], No. 48517/62. Heading A4K. In order to accommodate any swelling at the roots of the bristles of a paint brush, the wedge 3 is made of a crushable, non-resilient and rigid sythetic foam. A wedge of rigid foamed polyurethane may be bonded by its base to a block 4 of epoxy bristle bonding agent.
Patent GB-1509909-A (GB)
Title: Mooring terminals
IPC: B63B22/02
Filed: 1975-09-12
Abstract: 1509909 Monomooring terminals DAVID BROWN-VOSPER (OFFSHORE) Ltd 12 Sent 1975 [8 Nov 1974] 48540/74 Heading E1H [Also in Division B8] A buoyant structure I held below sea level by chains 2 extending to an anchor block 3 has a fixed drum 11 with a rotatable top ring 13 into or onto which a pipe bundle 7 can be coiled or uncoiled. A ship is moored to the structure by a cable 9 for the transfer of liquid cargo to and from it. The top ring 13 has a reversible hydraulic motor 17 which drives the bundle 7 longitudinally while the ring 13 is rotated by a similar motor 14 on the structure. By actuating the motors 14, 17 together in the appropriate directions the bundle can be uncoiled from within the drum 11 for connection to a moored ship or on reverals can coil in a disconnected bundle. The bundle extends down through an aperture 21 and includes a power line 23 from a power pack 22 which line is connected to the motors 14, 17.
Patent GB-1114289-A (GB)
Title: Improvements in or relating to outboard motor assemblies
IPC: B63H20/10
Filed: 1965-12-02
Abstract: 1,114,289. Mounting outboard motors. OUTBOARD MARINE CORPORATION. 2 Dec., 1965 [23 Feb., 1965], No. 48572/67. Divided out of 1,114,288. Heading B7V. In an outboard motor assembly comprising a propulsion unit 13 attached to the boat transom 16 by mounting bracket 35, a second bracket 27 is connected to the mounting bracket by horizontal pivotal shaft 51, removable locking bolt 57 prevents relative pivotal movement between second bracket 27 and mounting bracket 35, and yoke 25 pivotally connects the propulsion unit 13 to the second bracket 27 for horizontal movement about bearing 29 and for vertical movement about pivot-pin 81.
Patent GB-1175618-A (GB)
Title: Stabilized Hydrocarbon Polymers
IPC: C08K5/13
Filed: 1967-10-27
Abstract: 1,175,618. Poly - cis - butadiene elastomer composition. ETHYL CORP. 27 Oct., 1967 [31 Oct., 1966], No. 48986/67. Heading C3P. A composition comprises an unvulcanized cis-polybutadiene elastomer and a 4,41-bisphenol of the formula wherein R 1  and R 3  are the same or different and are each an alpha-branched alkyl group of 3 to 20 carbon atoms, a cycloalkyl group of 6 to 20 carbon atoms or an alpha-branched aralkyl group of 8 to 20 carbon atoms, and R 2  and R 4  are the same or different and are each an alkyl group of 1 to 20 carbon atoms, a cycloalkyl group of 6 to 20 carbon atoms, or an aralkyl group of 7 to 20 carbon atoms. The compositions are suitably oil-extended; conventional vulcanizing ingredients may be added and the composition vulcanized. The stabilizer is suitably added to solution polymerized polybutadiene (cement), followed by solvent removal (e.g. with boiling water) to form a crumb of unvulcanized rubber. Many specific stabilizers are mentioned, those preferred having R 1 , R 2 , R 3  and R 4  identical. Examples are given of the use of 4,41-bis- (2,6 - di - tert - butyl phenol), 4,4<SP>1 </SP>- bis - (2,6- di - cyclohexyl phenol) 4,4<SP>1 </SP>- bis - (2,6 - disec - butyl phenol), and 4,4<SP>1</SP> - bis - [2,6 - di- (α-methylbenzyl)-phenol].
Patent GB-1487080-A (GB)
Title: Flow limiters and to hydrostatic bearing arrangements incorporating flow limiters
IPC: F16C32/06
Filed: 1974-11-14
Abstract: 1487080 Valves; bearings CENTRE D'ETUDES ET DE RECHERCHES DE LA MACHINE-OUTIL 14 Nov 1974 [28 Nov 1973] 49215/74 Headings F2V and F2A A flow limiter for controlling flow from a pressurized annular space 33 to each of four pockets 4 around the shaft 2 of a hydrostatic bearing has a deformable plate 22 with a central thickened portion which is normally spaced from the orifice 20 and is moved relative thereto by the pressure differential across the plate. The plates each have two legs (25) which are received in guide slots (24) in the stepped portions 23. The plates are retained in chambers 32 formed between flats on the outside of an inner annular member 31 and an outer annular member 30. The flow limiters act to increase the pressure in a pocket 4 when the shaft moves towards that pocket to produce a force tending to move the shaft away from that pocket.
Patent GB-1280367-A (GB)
Title: Stock inlet for paper machines
IPC: D21F1/02
Filed: 1969-10-08
Abstract: 1280367 Papermaking BELOIT CORP 8 Oct 1969 [13 Nov 1968] 49395/69 Heading D2A A paper-making machine comprises a stock inlet box, a stock header extending across the width of the inlet box, groups of spaced risers which are narrow compared with the header, extending upwardly between the header and the inlet box, wall means being provided which internally divide the header into compartments which communicate with different ones of the groups of risers, and means for selectively and individually blocking off the flow of stock through the compartments. The groups may be formed by rows of tubes extending in the cross-machine direction, one or more rows constituting a group. As shown tube rows 38, 39 form one group, and tube rows 40 and 41 another. All the tubes are preferably of the same length. Valve 33 is slidable in throat 26 formed in the inlet box, to cut off flow from the first group in the position shown, or allow flow when slid back. The stock header is preferably of the rectangular cross-section shown, and may be supplied with stock from a conduit which has a straight run prior to the header.
Patent GB-1095720-A (GB)
Title: Polyureas and their production
IPC: C08G18/73
Filed: 1965-11-22
Abstract: Polyureas containing the repeating unit <FORM:1095720/C3/1> wherein X is hydrogen, an alkali metal atom or a -CH2R1 radical, where R1 is hydrogen or a C1- 21 alkyl radical; n is 3 or 4 and R is a C2- 10 divalent hydrocarbon group either unsubstituted or carboalkoxy substituted, are prepared by reacting a diisocyanate of the formula <FORM:1095720/C3/2> with a diamine of formula H2NHNH2, wherein X is a C1- 22 alkyl radical and thereafter if desired with an alkali metal compound or an acid.  The diisocyanates may be prepared by reacting a dihydrochloride of C1- 22 alkyl esters of ornithine or lysine with phosgene, those exemplified being the methyl, ethyl, octyl, butyl, stearyl and decyl ester of lysine and the hexyl ester of ornithine. Exemplified diamines are ethylene diamine, 1,3-propane diamine, 1,6-hexane diamine, 1,4-bis-(aminomethyl) cyclohexane and m-phenylene diamine.  The reaction between the diisocyanates and the diamines may be carried out either by interfacial or solution polymerization.  In the interfacial method the diisocyanate is suitably dissolved in a halogenated hydrocarbon and the diamine in water which solutions on mixing cause the polyurea to precipitate out.  The solution polymerization method involves mixing a solution of the diisocyanate with a solution of the amine both in the same non-protic solvent, e.g. dimethylsulphoxide.ALSO:Esters of diisocyanato carboxylic acids having the formula <FORM:1095720/C2/1> wherein X is an alkyl radical of 1 to 22 carbon atoms, and n is 3 or 4 may be prepared by reacting a dihydrochloride of C1- 22 alkyl esters of ornithine or lysine with phosgene.  The C1- 22 alkyl esters of ornithine or lysine may initially be prepared by reaction of ornithine or lysine with the desired alcohol.  Preferably the phosgenation reaction is carried out in the presence of an inert solvent.  Examples describe the preparation of the methyl, octyl, butyl, stearyl and decyl esters of lysine diisocyanate and the hexyl esters of ornithine diisocyanate.ALSO:Polyureas containing the recurring unit: <FORM:1095720/B1-B2/1> in which X is hydrogen, an alkali metal atom or a -CH2R1 radical where R1 is hydrogen or a C1-21 alkyl radical, n is 3 or 4 and R is a divalent hydrocarbon group of 2 to 10 carbon atoms which may be carboalkoxy substituted, may be coated onto paper, metal foils, glass fabrics and glass panels.  In an Example a polyurea wherein X is a methyl radical, n is 4 and R is a 1, 3-propane radical is dissolved in dimethyl sulphoxide and coated onto a glass panel.  The dimethyl sulphoxide is then driven off by heating, leaving a film of the polyurea on the glass.
Patent GB-1097918-A (GB)
Title: Method and arrangement for loading and unloading fuel elements in nuclear reactors
Inventor: MUELLER ARNO
IPC: G21C19/08
Filed: 1965-11-25
Abstract: 1,097,918. Fuelling reactors. GESELLSCHAFT FUER KERNFORSCHUNG. m.b.H. Nov. 25,1965. No. 50135/65. Heading G6C. A reactor installation comprises a vessel 4 containing fuel elements 1 forming the core 2 cooled by liquid sodium 3 normally having the level 19, the coolant circuit being completed by heat exchangers 7, storage tanks 8 having pumps 6 and pipes 30, 31, 32. The spaces 13, 14, 15 above the coolant in the several vessels are filled with inert gas, pressure equalization between the spaces being maintained by a line 16. The connection between the line 16 and reactor space 13 includes a valve 17, which is normally open, and a blower 18. To perform a fuelling operation the reactor is shut down, valve 17 is closed and the blower 18 is turned on to increase the pressure in space 13 and depress the level of the coolant 3 in vessel 4. A fuel element handling machine 12 introduced through a passage 11 in the top shield 9 is connected through a pipe 23 and throttle 24 to the line 16 so that initially there is a gas flow through the machine to the line. When the coolant is depressed to a level 20 at the lower end of a pipe 38 connected to the line 16 through an open valve 39 there can be no further depression of the level. The liquid coolant now rises in a loading tube 22 of the machine 12 to a level 21 due to the gas pressure differential across the tube ends. The tube 22 is positioned over a selected fuel element 1 and the latter is withdrawn into the tube by a grab 23, the tube then being moved over a storage space 5 into which the fuel element is lowered. The arrangement ensures that at all times the fuel element is immersed in the liquid coolant. If desired, by closing the valve 39, the coolant 3 may be further depressed to a level 26 so that the fuel element heads 27 may be visually seen by a T.V. system 25 to facilitate attachment of the grab 29, the level then being raised to 20 to permit the refuelling to take place as described before. A modified loading tube is described with reference to Fig. 2 (not shown), in which a local circulation path for the liquid coolant is provided to facilitate cooling of the fuel element.