baber/WOPTO huggingface dataset:
Patent GB-1141175-A (GB)
Title: Aromatic polymers containing anhydride groups
Inventor: NEALE ALAN JEFFREY
IPC: C08G61/10
Filed: 1966-08-17
Abstract: 1,141,175. Aromatic polyanhydrides. MONSANTO CHEMICALS Ltd. 14 July, 1967 [17 Aug., 1966], No. 36742/66. Addition to 1,037,111. Heading C3R. Aromatic polyanhydrides are obtained by heating an aromatic polysulphonyl halide with an aromatic intramolecular carboxylic anhydride having at least two replaceable nuclear hydrogen atoms per molecule and a third aromatic compound having at least two replaceable nuclear hydrogen atoms per molecule, so that sulphur dioxide and a hydrogen halide are evolved. Copper or a copper compound may be present as a catalyst. In examples, polymers are prepared from benzene-m-disulphonyl chloride, phthalic anhydride and isomeric terphenyls. Other sulphonyl halides mentioned are benzene- 1,3 - disulphonyl bromide, 2,4,5,6-tetrachlorobenzene - 1,3 - disulphonyl chloride, naphthalene - 2,7 - disulphonyl chloride, diphenyl-4,4<SP>1</SP>- disulphonyl chloride, diphenyl ether-4,41-disulphonyl chloride, diphenyl sulphide-4,41-disulphonyl chloride, dibenzothiophen - 2,8 - disulphonyl chloride and dibenzofuron-3,7-disulphonyl chloride. Other anhydrides mentioned are monochlorophthalic anhydrides, phenylphthalic anhydrides, naphthalic anhydride, 3,3<SP>1</SP>,4,4<SP>1</SP> - biphenyl tetracarboxylic dianhydride, benzophenone 3,31,4,41 - tetracarboxylic dianhydride and diphenylsulphone 3,3<SP>1</SP>,4,4<SP>1</SP>- tetracarboxylic dianhydride. Other aromatic compounds mentioned which may be used as the third component are biphenyl, binaphthyl, quinquephenyl, sexiphenyl, septaphenyl, diphenoxy - terphenyl, diphenoxyquaterphenyl, bis - phenoxy - biphenyl ether, bis - phenylthiobiphenyl ether, diphenylsulphone, bis - (dibenzothienyl) benzene, bis - dibenzofuranyldiphenyl ether, tetraphenyl silane, phenyl tri-(3- phenoxyphenoxy), di - (triphenylsiloxy) benzenes, hexaphenyl - cyclotrisiloxane, octaphenylcyclotetrasiloxane and polysilicate polyesters.
Patent GB-1073872-A (GB)
Title: Improved method and apparatus for manufacturing double-faced paperboard or corrugating machines
IPC: B05C1/08
Filed: 1965-08-27
Abstract: 1,073,872. Web coating apparatus. SAMUEL M. LANGSTON CO. Aug. 27, 1965 [Aug. 31, 1964], No. 37058/65. Addition to 1,038,906. Heading D1L. The apparatus for manufacturing double faced paperboard on a corrugating machine described in Specification 1,038,906 is modified in that the means for transferring adhesive from a reservoir 31 to the flute tips of a corrugated medium 9 in a plurality of small closely spaced discrete masses include an elongated roller 30 having a plurality of closely spaced cells formed in its surface, which roller is adapted to rotate with a portion of its surface in said reservoir whereby the cells are filled with adhesive and the surface is coated with adhesive, and means for removing substantially all adhesive from the surface of said roller and varying the amount of adhesive in the cells which means comprises a second roller 33 positioned adjacent said first roller in non- contacting relationship therewith. The space between the applicator roll and said second roll is preferably between .005 and .016 inches. In use the above adhesive metering and applying means may be combined with a pressure control means guiding the corrugated medium to insure adequate adhesive transfer without danger of flute crushing. Such means comprise a pair of arms 35 (not shown), 36 which support between their rider roll 37 and flexing roll 38, and are connected at their outer ends to a piston and cylinder device 39. The arms 35, 36 may be independently pivotal or fixed to pivot in unison and the rolls 37, 38 may be carried in arms 35, 36 by self aligning bearings which allow the rolls some degree of translational movement. The nip pressure between the roll 37 and applicator roll 30 can be adjusted to that required to give adequate adhesive transfer without crushing of the flutes by connecting the cylinders of devices 39 to a constant pressure pneumatic or hydraulic circuit associated with each (Fig. 8, not shown).
Patent GB-626900-A (GB)
Title: A mechanism for the propulsion of velocipedes and the like
IPC: B62M1/18
Filed: 1946-12-17
Abstract: 626,900. Cycle &c. driving mechanism. MARTIN, J. L. Dec. 17, 1946, No. 37167. [Classes 136 (ii) and 136 (iii)] Driving mechanism for cycles and like vehicles comprises a saddle 1 oscillatorily pivoted to a fixed point of the vehicle by means of a supporting and guiding member 2, the saddle being linked through a connecting rod 12 to a crank shaft 14 forming part of the vehicle wheel unit and linked through another member 6 to two levers 8 having operating pedals 11. The levers 8 pivot about a shaft 10 secured to stays 51 forming part of the vehicle frame. These stays are connected at one end to the head tube 5 and at the other end to the crank shaft by means of bearings.
Patent GB-932520-A (GB)
Title: Production of dicyanagen
IPC: C01C3/00
Filed: 1961-10-17
Abstract: Dicyanogen is prepared by oxidizing hydrogen cyanide at elevated temperatures in the presence of a silver catalyst with a quantity of oxygen which is less than is theoretically required for complete oxidation of hydrogen cyanide to cyanogen.  The quantity of oxygen is preferably from 10-60% of that theoretically required.  The oxygen may be diluted with an inert gas, e.g. nitrogen.  The silver catalyst is preferably supported on conventional supports, those specified being alumina, pumice, kieselguhr and silica gel.  Suitable reaction temperatures are from 400 DEG -800 DEG C.  Preferably the not gaseous reaction products are cooled by spraying with weakly acidified water, e.g. containing 0,1-5% of acid, specified acids being sulphuric, hydrochloric, phosphoric and organic acids, sulphuric acid being preferred.  The spray process removes impurities such as ammonia, urea, ammonium cyanate and unreacted hydrogen cyanide; the latter may be recovered and recycled.  To completely remove oxygen and nitrogen from the dicyanogen, the gas is liquified.  An example describes the process using various percentage quantities of oxygen.
Patent GB-1436585-A (GB)
Title: Coke quenching
IPC: C10B39/04
Filed: 1973-08-06
Abstract: 1436585 Quenching hot coke KOPPERS CO Inc 6 Aug 1973 37298/73 Heading F4B Water is sprayed from a header 45 on to hot incandescent coke in a quenching car 11 thereby producing quenched coke and a slurry of coke breeze and of liquid. The slurry drains into a sump 21 where, by gravitational settling, a thickened sludge and clean supernatant liquid are formed. The clean liquid is recycled from the upper part of the sump by a pump 25 to the spray header 45 through a suction line 89 conduit 93 and optionally a surge tank 17. The sludge is withdrawn from the lower part of the sump by a pump 23 to a breeze collecting tank 77 through conduits 73, 75. Water drains from the tank 77 back to the sump 21 through a conduit 83. The sludge withdrawn from the sump can alternatively be supplied to coke breeze discharge headers 85. The sump has downwardly converging walls 55a, 55b, may be of rectangular or circular cross-section, and may have a cover (not shown) over its top. The breeze collecting tank 77 has a gate 81 through which the breeze can be discharged to the coke quenching car or some other conveying device. Quenching valve 43, which controls operation of the spray header 45, may be opened for a predetermined time. Surge tank 17 may have pressure or float devices that automatically cut off and turn on pumping means 25 depending on the liquid level in the tank. Any breeze which collects in the surge tank 17 can be discharged by opening the valve 103. There is a quenching hood 15 with gas cleaning and dust removing equipment (not shown). Figs. 3 and 4 (not shown) illustrate alternative sumps 21, each of which includes a dividing wall (105) extending from the sump top to a position adjacent downwardly sloping walls 55a, 55b and extending across the sumps' cross-section. The slurry enters these sumps to one side of the wall (105).
Patent GB-1434718-A (GB)
Title: Polymer composition
IPC: C08F279/02
Filed: 1972-08-10
Abstract: 1434718 Moulding compositions BP CHEMICALS INTERNATIONAL Ltd 23 July 1973 [10 Aug 1972] 37403/72 Heading C3P Thermosetting moulding compositions comprise (a) a high vinyl polybutadiene (i.e. above 25% 1,2-bonded units), (b) a free radical initiator, e.g. 1,3-bis-(tertbutylperoxyisipropyl) benzene or a mixture thereof with 1,1-di-tertbutylperoxy - 3,3,5 - trimethyl cyclohexane, and (c) as a shrink controller atactic polypropylene. Exemplified compositions also contain (Example 2) silica, butylated hydroxytoluene and α - methacryloxypropyl trimethoxysilane, and (Example 4) calcium carbonate, glass fibre and trimethylolpropane trimethacrylate.
Patent GB-1439607-A (GB)
Title: Flameproofing of textile fibres
IPC: C09K21/10
Filed: 1972-08-11
Abstract: 1439607 Textile treating compositions ALBRIGHT & WILSON Ltd 7 Aug 1973 [11 Aug 1972] 37634/72 Heading C3R [Also in Division D1] Cellulosic textile fibres are flameproofed by impregnation with an aqueous solution containing a precondensate of urea and a tetrakis (hydroxymethyl) phosphonium salt together with any excess of the phosphonium salt necessary to make up a ratio of urea to phosphonium salt lying between 0À05 : 1 and 0À25 : 1 mole, the solution being neutralized by the addition of an alkali or base to a pH in the range 5 to 8, preferably 5À8 to 7, and treating the impregnated material with ammonia to form a cross-linked polymer. The phosphonium salt is preferably the chloride (THPC), but may alternatively be the bromide, acetate, phosphate or sulphate. The concentration of the precondensate solution may be from 20 to 40%, preferably 25 to 30% by weight. It may be prepared by refluxing the requisite quantities of urea and phosphonium salt in water, or by refluxing the urea and phosphonium salt at a molar ratio of 0À5 : 1 and adding the necessary excess of phosphonium salt to the solution subsequently. The neutralizing agent may be caustic soda or sodium carbonate. The ammonia may be applied in two stages, first as gaseous ammonia and second as aqueous ammonia, or alternatively by the rapid gas cure method of Specification 1,439,608. The process may be applied to the treatment of lightweight cotton fabrics, e.g. nightwear.
Patent GB-905942-A (GB)
Title: Improvements in air blast dryers
IPC: D21F5/02
Filed: 1958-11-24
Abstract: 905,942. Drying-apparatus. GARDNER, T. A. Nov. 24, 1958, No. 37727/58. Class 34 (1). A paper web 20, Fig. 1, passing over a steamheated drying roll 21 is also dried by jets of air from nozzles 50 formed in a hood 25 laterally spaced a half-inch radially inward from the surface of the web. The hood is movable to and from the web by arms 26 on trunnions 27 about which it may be swung by cables 28. An inner wall 30, Fig. 4, within the hood 25 formed of the bases of a series of channel members 45 forms a plenum chamber 31 to which the drying air is led through a pipe 32, the chamber being shorter than the hood with its end walls 33, 34 spaced from the ends of the hood. The side walls of the nozzles 50 are formed of the converging outer ends 53, 54, Fig. 3, of facing flanges of adjacent channel members 45, which are welded to the end walls 33, 34 and to an intermediate partition 35 within the chamber 31 provided with apertures 36 to permit flow of air throughout the chamber. Saturated air from the surface of the web is led through passages 51 which alternate with the nozzles and which are formed by the members 45, to the ends of the hood 25 externally of the walls 33, 34 whence it is exhausted through a pipe 38. The nozzles are spaced an inch apart, have slots which are long as compared with their width and have spacers 59 welded to sides 54. A portion of the saturated air is discharged through a blower while the majority passes through a filter and heater to be recirculated by the blower into the chamber 31 by the pipe 32. In modifications, Figs. 10, 11 (not shown), the web is trained about a series of drying rolls with a hood placed above the upper surface of one web, and the web is fed over a stationary plate. In another modification, Fig. 19 (not shown), the nozzles may comprise tubes mounted on manifolds and spaced in all directions to permit escape of vapour-carrying air.
Patent GB-1111256-A (GB)
Title: Method and device for widening a drill-hole in rock
IPC: E21D9/11
Filed: 1966-08-23
Abstract: 1,111,256. Bore hole widening drills. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. 23 Aug., 1966 [24 Aug., 1965], No. 37727/66. Heading E1F. Widening of a pilot bore in rook is accomplished by roller cutters of a drill notching, preferably spirally, the wall of the bore before further rolling cutters act on the exposal face of the rock radially outwards of the pilot bore to form a final bore of the required diameter.
Patent GB-1107615-A (GB)
Title: A record media driving arrangement
IPC: G11B15/29
Filed: 1966-08-24
Abstract: 1,107,615. Record media driving apparatus. NATIONAL CASH REGISTER CO. 24 Aug., 1966 [20 Oct., 1965], No. 37962/66. Headings G4M and G5R. In a record media driving arrangement the record media 12 lies between and is driven by co-operable constantly rotating capstan and pinch rollers 50, 54. An annular magnetic member 86 is resiliently mounted on and is movable relatively to pinch roller 54 when magnetically attracted by annular magnetic elements 62, 64 on capstan roller 50, on energization of coil 76 of electromagnet 52. De-energization of coil 76 permits element 86 to return to a position in which record media 12 is no longer gripped. A brake 18 is energized at the same time as the coil 76 is de-energized. So that the media may be driven in two opposite directions, two driving means 14, 16 and two brakes 18, 20 are provided.
Patent GB-1071716-A (GB)
Title: Speed varying mechanism
IPC: F16H29/04
Filed: 1964-09-17
Abstract: 1,071,716. Variable speed ratchet gears. T. OKANO. Sept. 17, 1964 [Sept. 17, 1963], No. 37973/64. Heading F2D. A variable ratio gear comprises an adjustable throw input eccentric 16, 17 gyrating a ring 18 which oscillates arms 30 connected by oppositely acting one-way roller clutches to pinions 35-39 and 52-56 respectively meshing internal and external teeth formed on an output member 62. During operation, the inner eccentric 16 is rotated directly by an input shaft 1, and the outer eccentric 17 is rotated at the same speed by a bevel gear 10 meshing bevel planets 6 on a carrier driven from the input shaft 1 at a reduction ratio of 1: 2 by gears 2, 3, 4, 9, the planets 6 also meshing a bevel gear 11 which is normally held stationary by irreversible wormwheel 12 and worm 13 gearing. The throw of the eccentric is adjusted to vary the ratio of the gearing by adjusting the worm 13.
Patent GB-1036939-A (GB)
Title: Improvements relating to cutting blades
IPC: B26B21/60
Filed: 1963-09-26
Abstract: Cutting blades e.g. razor blades are coated with polythene and heated in an oxygen-free atmosphere at 150 DEG C. to 500 DEG C.  The polythene may be applied by dipping, spraying, flame-spraying or brushing with a dispersion or solution in an organic liquid.  The oxygen-free atmosphere may be a reducing atmosphere (e.g. natural gas), an inert gas (e.g. nitrogen) or a vacuum.  The polythene may be co-polymerized with a vinyl or acrymonomer, maleic anhydride or butadiene: or it may be mixed with another polyolefin or a polyvinyl resin.  The blades may be degreased and pre-heated before coating.
Patent GB-1383089-A (GB)
Title: Suction dredger
IPC: E02F3/92
Filed: 1972-08-15
Abstract: 1383089 Suction dredgers HOLLANDSCHE AANNEMING MAATSCHAPPIJ NV 14 Aug 1973 [15 Aug 1972] 38030/72 Heading E1F A draghead 1 for a suction dredger comprises a first cutting element 2 for breaking up ground 3 over which the draghead is moved in order that it may be removed by suction through pipe 8, and a rotating cutting element 4 which is driven by a motor 6 to exert a force on the ground to assist movement of the draghead. The speed and/or torque of the motor 6 are controlled in dependence on the tension in the pipe 8, as measured by strain gauges 9. Cutting element 2 may comprise teeth carried by a part 11 pivotable about the axis 10 of the rotating cutter by actuator 21, or may be a driven cutter (20), Figs. 3, 5 (not shown) rotating in the opposite direction to cutter 4, which may comprise at least one pair of rotating elements whose axes are relatively inclined. The height of the cutting elements is adjustable by means of roller 12 and a shoe (18).
Patent GB-1308493-A (GB)
Title: Method of reconstituting an electric cable sheathing employing a heatshrinkable thermal screen
IPC: B29C63/42
Filed: 1970-08-07
Abstract: 1308493 Reconstituting an electric cable by moulding CABLES DE LYON ALSACIENNE 7 Aug 1970 [13 Aug 1969] 38294/70 Heading B5A [Also in Division H2 In the repair or replacement of an electric cable sheathing the original sheathing is removed to uncover a conductor which is then covered by a thermal screen comprising a strip or sheath which is heat shrunk in place; fresh sheathing is then applied to the strip and is held in position by injection moulding a securing member of thermoplastic material on to it. In Fig. 1 a coaxial submarine transmission cable comprising conductors 1 and 3 and polyethylene insulation 2 and 4 has its insulation 4 removed to the left of the plane 5 to uncover the conductor 3, and an end portion 7 of polyethylene is applied up to the plane 6. A thermal screen 8 of polyethylene bevelled at its ends and slid under the insulation 4 and 7 is heat shrunk on to the bare conductor and a polyethylene sheath 9, longitudinally slit at 10, is applied and secured by injection or press moulding a polyethylene member 11-13 around it. The material of the screen 8 may, alternatively be P.V.C., P.T.F.E. silicone or butyl rubber.
Patent GB-1126269-A (GB)
Title: Internal combustion engine brake
IPC: F01L13/06
Filed: 1966-08-26
Abstract: 1,126,269. Valve gear. JACOBS MFG. CO. Aug. 26, 1966 [Oct. 1, 1965], No.38326/66. Heading F1B. An I.C. engine brake comprises a cam 17, Fig. co-operating with mechanism to open a spring-closed exhaust valve 11, a piston 21 carried by the mechanism having a hydraulically actuated condition wherein an auxiliary cam 19 co-operates with it to actuate the mechanism to open the valve at or near to the end of the compression stroke, the piston being normally out of engagement with the auxiliary cam. Operation: When the solenoid valve 29 is energized it allows the passage of pressurized oil from pump 32 via rocker shaft chamber 35 to chamber 37 in rocker arm 13. Piston 49 and finger 46 are moved downwardly against spring 52 to allow seating of valve 45. The pressure oil unseats valve 45 and passes into bore 22 Fig. 2 to raise piston 21 against spring 26 until it abuts a stop 25. Whilst the solenoid valve remains energized the piston 21 is engaged cyclically by the auxiliary cam 19, whilst valve 45 acts as a non-return valve. Any excessive hydraulic pressure acts on the head 51 of the finger 46 to unseal the clearance 48 to permit pressure relief. When the solenoid is de-energized passage 31 is closed and the system drains through a relief valve 54. The latter maintains a residual pressure in the system. A lubricant duct 56 which lubricates the rocker arm bearing on the rocker shaft through fine orifices (not shown) also fills the hydraulic passages during the time when the solenoid valve is de-energized. In a modification the piston (21a), Fig. 6 (not shown) has a transverse hole (76) through which a smaller stop pin (77) extends. The differing diameters of the pin and the hole limits the piston movement. In a further embodiment two exhaust valves are actuated by a bridge (59), Fig. 9 (not shown) which is actuated by a rocker arm (61), push rod (61) and tappet (69) from a cam-shaft mounted at the side of the engine cylinder. The piston (72) which is engaged by the auxiliary cam during braking is mounted in the tappet (69).
Patent GB-1524598-A (GB)
Title: Cameras
IPC: G03B17/38
Filed: 1976-09-16
Abstract: 1524598 Remote release of cameras FRANKE & HEIDECKE GmbH 16 Sept 1976 [25 Nov 1975] 38397/76 Heading G2A A camera shutter is actuated by an electrical pulse derived from a light pulse. The arrangement may operate from a distance, the light pulse being produced by a flash unit, and may be visible or infrared light. It is detected by a photo-transistor 27, or a photo-thyristor 30, or a photo-voltaic cell 34 forming part of a light switch 22. The circuit includes a multi-vibrator comprising two transistors 6, 7, which is connected to the light switch 22 to form a pulse generator. The multivibrator is operable in either a bi-stable or a monostable mode, according to the position of a changeover switch 2, Fig. 1 showing the switch set for bistable operation. When a light flash is triggered, the photo-electric transducer (e.g. the devices 27 or 32) becomes conductive and a pulse is applied to the multi-vibrator circuit. This pulse passes across the capacitors 49 and 10 to the bases of transistors 6, 7. A positive potential is thus applied to the base of a transistor 17, so that a relay 3 is energized, which closes a contact 4. The contacts E, F of relay 3 are plugged into corresponding contacts on the camera, so that as contact 4 closes the camera release contact 5 also closes, thus actuating the camera shutter. The contact 5 may be opened by triggering a second light flash. By switching the multi-vibrator to its monostable state, a predetermined exposure time may be set on a resistor 16.
Patent GB-901545-A (GB)
Title: Improvements in or relating to pulley blocks
Inventor: SHEPHERD HENRY CHARLES
IPC: B66D3/10
Filed: 1959-11-12
Abstract: 901,545. Pulley blocks. LEWMAR MARINE Ltd. Nov. 11, 1960 [Nov. 12, 1959], No. 38444/59. Class 78 (5). When load is applied to a rope passing over the sheave 7 of a pulley block via a pulley 17, the sheave 7 is displaced upwardly so that ratchet teeth 13 carried by it, are brought into engagement with a pawl 15. When load is relaxed, a spring 11 acts through a stirrup 10 to draw the sheave 7 down to its original position.
Patent GB-1203253-A (GB)
Title: Spectrometer entry or exit devices
IPC: G01J3/28
Filed: 1967-08-22
Abstract: 1,203,253. Spectrometers. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE and OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES. Aug.22, 1967 [Sept.1, 1966], No.38645/67. Heading G2J. An input or output device for a grid type spectrometer, provides, after dispersion, signals free from periodic side-structure, and consists of a random distribution of spaced areas 23 on a support 21 the said areas and the support having first and second radiation conveying characters such as transmission and non- transmission. Areas 23 are parallel and elongated in form and together comprises 40-60% of the total area of the support their shorter dimensions being parallel to the direction of dispersion. The support may be transparent, opaque or reflective, as may the randomly spaced areas. A device suitable for an auto-collimation spectrometer has two random sets of areas, each area in one set having a corresponding area in the other set synmetrically placed about the centre of the device. Such a device is prepared by dropping small white discs, "confetti", on to a sticky black, part spherical, concave surface (51), Fig.9 (not shown). The surface (51) is then moved normally to the plane defined by the axis of surface (51) and the optical axis of a camera (54) inclined to the first photographic plate (56) being exposed during this movement. A first random set of elongated images is obtained. The second set is obtained by turning surface (51) through 180 degrees about its axis and further exposing plate (56) during translation of the surface (51). The off-axis exposure corrects for the distortion of the spectrometer.