baber/WOPTO huggingface dataset:
Patent GB-1178895-A (GB)
Title: Improvements in or relating to Flexible Driving Shaft Outer Members
Inventor: STOCKWELL WALTER STANLEY
IPC: F16C1/26
Filed: 1967-11-13
Abstract: 1,178,895. Tubes; Bowden mechanisms. SMITHS INDUSTRIES Ltd. 13 Dec., 1968 [13 Nov., 1967], No. 51636/67. Headings F2K and F2P. An outer member 1 for a flexible driving shaft for transmitting longitudinal or rotational movement comprises an inner layer 2 of helically wound metallic strip with adjacent turns abutting or spaced apart, an intermediate reinforcing layer 3 of metallic braiding and an outer layer 4 of extruded plastics material, e.g. high density polyethylene. The metallic braiding may comprise groups of interwoven steel wire strands there being three strands in each group and each strand is of 32 S.W.G. The inner surface of the inner layer 2 may be parallel to the axis of the member or, as shown, each turn of the metallic strip is generally concavo-convex in cross-section. An end fitting 7 may be connected to the outer member by moulding the end fitting directly thereon or swaging the end fitting about the outer member.
Patent GB-1470380-A (GB)
Title: Device for cutting top vegeetation  combustion engine exhaust gas
IPC: A01B39/18
Filed: 1973-11-08
Abstract: 1470380 Cylinder type mower with cutter wires BRITISH SUGAR CORP Ltd 22 Oct 1974 [8 Nov 1973] 51784/73 Heading A1F Apparatus for topping tall weeds growing with sugar beet or destroying potato hulms comprises at least one cutting wire 11 held taut between adjacent vertical and coaxial discs 4 which are fixed upon a common horizontal, rotatable shaft. The wires are spaced around the periphery of the discs and have coiled ends which are releasably held within the end slots 14 of bolts 12 by pins located in apertures 15. The wires are tightened by adjusting nuts 13 and may be parallel or inclined to the rotational axis so as to accommodate potato ridges. They may, if desired be protected from centrifugal deformation by auxiliary discs, bands or helical wires. The drive is taken from a tractor or a separate motor and the cutters may be protected by an overhead guard.
Patent GB-1208286-A (GB)
Title: Process for producing a coated substrate
Inventor: GOINS ROBERT EUGENE
IPC: C08J9/38
Filed: 1967-11-14
Abstract: 1,208,286. Crushed polymeric foam coating. GAF CORP. 14 Nov, 1967 [15 Nov., 1966], No. 51837/67. Heading B2E. A substrate with an adherent coating of a crushed polymeric froth is produced by (a) forming an emulsion-polymerized latex composition containing a water-soluble organic surfaotant; (b) applying the resultant polymeric froth directly to the substrate; (c) partially drying the froth and substrate to a moisture content in the range of 3 to 20% by weight and retaining the froth in its expanded form during the drying process without gelation or the use of cross-linking agents; (d) crushing or compressing the partially dried polymeric froth adhering to the substrate uniformly under high pressure to a density of 30 to 65 pounds per cubic foot such that on release of pressure the layer does not recover to more than 125% of its compressed thickness; and (e) drying and curing the resultant crushed polymeric froth coated substrate. The polymerized latex emulsion may be reactive latex selected from carboxylated latexes and halogenated vinyl latexes, examples of which are given, and the detergent is selected from alkali metal, alkaline earth metal, ammonium and amino salts of higher fatty acids and mixtures thereof, e.g. ammonium stearate. The latex may be of acrylic or polyvinyl chloride latex polymer. A detackifying agent selected from waxes, dusting talc, silicone oils, aliphatic oils, thermosetting resins, soluble ethylene polymers, and polyethylene emulsions, may be employed and are added to the coating prior to the final step of drying and curing the crushed polymeric froth. The crushing or compressing may be effected by passing the substrate and foam layer between calender rolls at high pressure, e.g. 20.000 Ibs at the nip between the rollers. The substrate may be a fibrous or non-fibrous flexible sheet material, such as drapery fabric, textile fabrics of woven knitted, felted or other construction, plastics film, fibre glass or paper.
Patent GB-1353572-A (GB)
Title: Precipitating agent for amylase assay
IPC: C12Q1/40
Filed: 1972-11-10
Abstract: 1353572 Assaying amylase WARNERLAMBERT CO 10 Nov 1972 [6 Dec 1971 5 April 1972] 51933/72 Heading G1B A temperature-independent precipitating agent solution for use in the colorimetric determination of the amylase concentration in a fluid sample, comprising, in an aqueous solution having an apparent pH of from 5. 6 to 6.7, from 0.05% to 0. 20% by weight, based on the total weight of the precipitating agent solution, of zinc chloride; from 68% to 87% by weight, based on the total weight of the precipitating agent solution, of an ethylene glycol monoalkyl ether; from 0. 24% to 2.44% by weight, based on the total weight of the precipitating agent solution, of benzoic acid; and from 0.08% to 0.30% by weight, based on the total weight of the precipitating agent solution, of an alkali metal hydroxide. In use, a sample containing amylase is incubated with a dyed starch substrate for a specified time, unhydrolysed starch is precipitated with the composition of the invention and the optical density of the supernatant is measured. The process is applicable to body fluids.
Patent GB-1156680-A (GB)
Title: Integral Switch and Indicator
IPC: H01H47/24
Filed: 1966-11-21
Abstract: 1,156,680. Proximity detectors. ANELEX CORP. Nov. 21, 1966 [Nov. 19, 1965], No. 52111/66. Heading G1N. [Also in Divisions C4, H1 and H3] An integral proximity detector and indicator light comprises two transparent detector electrodes 14, 16 on the surface of an electroluminescent device 2. Approach of a metallic element or an operator's finger lowers the capacitive reactance thereby triggering gas tube 20 to emit light which causes the resistance of a photo-sensitive device 8 to drop sufficiently to cause the electro-luminescent device 2 to glow. Resistor 18 may be chosen to bias tube 20 between its firing and cut-off points whereby removal of the finger leaves the tube triggered, the device being reset by a switch 22. Alternatively, resistor 18 may bias tube 20 below its cut-off point whereby removal of the finger causes cessation of the glow. A second photo-sensitive device 26 may provide an independent output 24. The electrodes 14, 16 may be made of conductive glass. Instead of the form of capacitor shown, a single plate may co-operate with one of the transparent conductive plates of the electroluminescent device. Several devices may be assembled in a single control panel and common switch 22 may reset all the devices.
Patent GB-1086707-A (GB)
Title: Improvements in or relating to apparatus for generating pulsating currents of high amperage
IPC: H03K3/352
Filed: 1964-12-22
Abstract: 1,086,707. Converting J. VAN EIJNSBERGEN. Dee. 22, 1964 [Dec. 23, 1963], No. 52157/64. Heading H2F. An arrangement for producing pulses of variable duration and spacing comprises a pair of rectifiers A, D (e.g. ignitrons, thyratrons, thyristors) alternately feeding positive and negative pulses to a load 5, and a commutating circuit which applies to the rectifiers a reverse voltage which is higher than the voltage controlled by the rectifiers. In operation, capacitor plate 3a is initially charged to - 550 v. and on firing rectifier A a circuit is completed to NP taking 3b to +500 v. and 3a to - 50 v. Rectifier B is then fired taking 3a to +500 v. and 3b to + 1050 v. Rectifier A is now cut off and the capacitor 3 discharges and charges in the reverse direction until plate 3a reaches + 500 v. when rectifier B is cut off. The cycle then repeats in the opposite sense with rectifier D conducting. Instead of a D.C. input the circuit may be arranged to operate from an A.C. supply, the inputs of all rectifiers then being connected to one pole of the supply.
Patent GB-1182478-A (GB)
Title: Improved Hollow Ball for Grinding Mills
IPC: B02C17/20
Filed: 1967-11-17
Abstract: 1,182,478. Ball mills. KNORR-BREMSE G.m.b.H. 17 Nov., 1967 [23 Nov., 1966], No. 52435/67. Heading B2A. [Also in Division B3] A hollow ball for use in a ball mill comprises a plurality of components, e.g. a pair of hemispherical shells 1, 2 assembled with rotationally-symmetrical shrinkage joints, e.g. collars 3, 4 with undercut surfaces 5. The shell 2 is heated before assembly. The shells are secured by a rivet 6 and/or welded. The shells are made of wear-resistant material.
Patent GB-1481819-A (GB)
Title: Method of making a triple density silicon nitride article
IPC: B28B1/00
Filed: 1974-12-05
Abstract: 1481819 Sintered silicon nitride articles FORD MOTOR CO Ltd 5 Dec 1974 [20 Dec 1973] 52581/74 Heading C7D Triple density Si 3 N 4  articles such as gas turbine rotors are made by (a) hot pressing a powder mixture of 95-99À5% Si3N4 and 5-0À5% stensification aid e.g. MgO to form a first shape e.g. a hub, (b) injection moulding a mixture of Si powder and a thermoplastic binder and heating to remove the binder and form a second shape e.g. the rotor ring (c) slip casting Si powder on to a surface of the second shape and nitriding the composite (d) mating a surface of the first shape with the slip cast surface of the nitrided composite and hot pressing together e.g. at 1625-1700C to form the triple density article. The first shape is formed by hot pressing at 1650-1800C.
Patent GB-1135213-A (GB)
Title: Improvements in or relating to manufacture of moulded articles
Inventor: ASH BERNARD
IPC: H02G1/14
Filed: 1965-12-10
Abstract: 1,135,213. Moulding cable sheaths or dielectrics. H. M. POSTMASTER GENERAL. 10 Dec., 1965, No. 52668/65. Heading B5A. Polyethylene dielectric is reinstated by the moulding thereof between joined inner conductors (3, 4) (Figs. 1 and 2, not shown), and unjoined outer conductors (5, 6), of two coaxial telecommunication cables (1, 2), by enclosing the unjoined dielectric within a longitudinally split mould (7) with the moulding space loaded with polyethylene string, slugs, tape, granules or split cylindrical pre-cast form, whereby the mould (7) is heated by an electric heating element and molten polyethylene is injected under pressure, from suitable apparatus connected to the mould, to complete filling of the mould (7), and the pressure is maintained until the moulding has cooled. After joining the outer conductors (5, 6) the polyethylene sheath is completed between the cable outer sheaths (9, 10) by repeating the process or by using a polyethylene sheath to cover most of the length and joining this at either end by a similar moulding process, using a shorter mould. The mould (7) is water cooled at either end (7a) and is provided with cooling fins (7b). Suitable portable injection moulding apparatus is mounted about a collar 23 located between a stainless steel injection barrel 24 on an electrically heated barrel extension 25. Curved legs 20 are pivotally connected at 21 to a collar extension bracket 22 and loaded by springs 28 connected to stub axles 26 projecting on either side of the collar 23 providing an over centre action to hold the legs 20 in either the full line moulding position when the legs 20 may be inserted into support tubes, or a retracted position shown in dotted lines. The injection part of the apparatus is mounted about a pair of guide rods, e.g. 33, connected at one end to a plate 34 and pivotally at the other end to the stub axles 26 whereby, with the injection piston 39 fully retracted, a stepped 47 and chamfered 49 open end of the bore of barrel 24 allows the injection ram 40 to be pivoted on the rods 32, 33 to a vertical position to permit loading of the barrel 24. The ram is slidably mounted in a bearing block 37 at one end and is fixed at the other end to a thrust plate 36 slidable along the guide rods 32, 33 under the action of a manually operated screw 41 which engages within the ram 40 and which is formed with a disc 43 and fixedly carries a collar 44 between which is located a pressure plate 35 slidable on the rods 32, 33 against loading springs 45, 46 which are supported on the plate 34 whereby moulding pressure is developed by compression of the springs when the piston 39 is advanced to push the charge through the nozzle 50. The moulding pressure developed may be measured by the position of pressure plate 35 along a right hand scale of a graduated rod 38 and the position of the piston head 39 in the bore of the barrel 24 is indicated by the position of thrust plate 36 along a left hand scale on the rod 38.
Patent GB-1533667-A (GB)
Title: Crosslinkable mixtures
IPC: C08G73/10
Filed: 1976-12-17
Abstract: 1533667 Unsaturated imide polymers CIBA GEIGY AG 17 Dec 1976 [19 Dec 1975] 52828/76 Heading C3R Cross-linkable unsaturated bis-imide/diamine mixtures contain a bis-imide of the formula or a cyclized derivative thereof. A is derived from an olefinically unsaturated diacid; Q-Y-Q is the residue of a diamine; R and R<SP>1</SP> complete a carboxyl, ester or salt group or two R<SP>1</SP> complete an anhydride ring; and X is H or, when the -N linkage is in the 4-position, COR. Such bis-imides are described and claimed in Specification 1,533,668. Mixtures wherein Y is an oligomeric radical within the scope of Specification 1,533,669 are disclaimed. Reference is also made to Specification 1,190,718.
Patent GB-1087672-A (GB)
Title: Billet cutting method and apparatus
IPC: B23D21/00
Filed: 1964-12-31
Abstract: 1,087,672. Shearing; extruding. AMERICAN METAL CLIMAX Inc. Dec. 31, 1964 [March 27, 1964], No. 52998/64. Headings B3P and B3W. Heated billets from a furnace 16 are fed by reversibib rollers 19 to a shear 10 which comprises a fixed apertured cutter 12 and a reciprocating apertured cutter 13, driven by an hydraulic cylinder 32. The length cut off, which is for use in an extrusion press is determined by a gauging stop 24 which is adjustable along a rack 26 and which incorporates a limit switch 28 to initiate the operation of the shear. Beyond the cutter 13 is a cradle formed by rollers 22 which support the cut-off material and which rises with the cutter 13 when the shear separates. The cut-off piece is ejected from the cutter 13 when it is in its raised position by a rock bar 35 which is operated by an hydraulic cylinder 38 through a rack 37 and a pinion 36. The cylinder 38 is controlled by a limit switch 39 which is actuated by the cutter 13 when it reaches its uppermost position. Servo-valve control mechanism returns the shear to its starting position.
Patent GB-1261486-A (GB)
Title: Apparatus and process for loading boreholes
IPC: F42D1/10
Filed: 1970-11-09
Abstract: 1,261,486. Spray producers. AFRICAN EXPLOSIVES & CHEMICAL INDUSTRIES Ltd. 9 Nov., 1970 [21 Nov., 1969], No. 53113/ 70. Addition to 1,202,478. Heading B2F. [Also in Division E1] The apparatus of Parent Specification which apparatus is for use in the filling of a borehole with a slurried or a plastic mass, e.g. explosives or cement, is modified in that the nozzle structure of the apparatus now comprises a tube 1 sealed in the smaller opening of a truncated and outwardly and forwardly diverging conical mantle 4 made of a material of sufficient rigidity or so reinforced that the mantle cannot be inverted when inserted into a borehole and subjected on its inner, leading surface to back pressure from any mass discharged into the borehole from the tube. The tube may be a flexible hose or may be rigid and attached to a flexible hose. The mantle may, to facilitate insertion into a borehole, be folded downwardly and inwardly of the tube and have its forward end embraced by a jettisonable cap. The material of the mantle may be rigid or flexible and the mantle may have a skirt of a more flexible material than the material of the mantle. The central angle of the mantle cone is preferably less than 120‹ and the mouth of the mantle is less than twice the length of the mantle when the mantle is in use.
Patent GB-1446557-A (GB)
Title: Process for the cleavage of dihydroperoxides
IPC: C07C39/08
Filed: 1973-11-15
Abstract: 1446557 Process for the cleavage of dihydroperoxide SUMITOMO CHEMICAL CO Ltd 15 Nov 1973 [21 Nov 1972] 53113/73 Heading C2C Di-isopropylbenzene dihydroperoxides are cleaved by contacting a cleavage feed solution of di-isopropylbenzene dihydroperoxides containing as impurities isopropylphenyldimethylcarbinol, (2-hydroxy-2-propyl) cumene hydroperoxide and di-(2-hydroxy-2-propyl) benzene, with an acid catalyst to obtain resorcinol and/or hydroquinone, the content of the impurities in the said feed solution being controlled such that the ratio of the number of 2-hydroxy-2-propyl groups to the number of molecules of the dihydroperoxides is not more than 0À61 : 1.
Patent GB-1495297-A (GB)
Title: Process for the production of perfluoro hydrocarbons
IPC: C07C17/367
Filed: 1974-12-10
Abstract: 1495297 Perfluorohydrocarbons and derivatives by irradiation of polymers AKADEMIE DER WISSENSCHAFTEN DER DDR 10 Dec 1974 53329/74 Heading C2C Perfluorohydrocarbons of chain length up to 30 C atoms or substituted derivatives thereof or corresponding perfluorocarboxylic acids are produced by irradiation of solid perfluorinated hydrocarbon polymers with electron beams, the intermediately formed fission products are optionally reacted with a reactant and the desired products are immediately removed from the irradiation zone. The irradiated material is preferably PTFE and substances which are reactive under the selected radiation conditions may also be passed in. The desired products are preferably removed by a current of carrier gas, which may itself become active during irradiation, e.g. O 2  or a mixture of O 2 /inert gas. The products obtained may be deactivated and retreated with electron beams or fractionated and reacted with an amine, alcohol, phenol, carboxylic acid. Sulphonic acid hydrogen halide, vinyl compound or ammonia. Amongst the examples PTFE is irradiated in a current of N 2  to give n-perfluoroparaffins and perfluoroolefins; PTFE is irradiated in a current of air to yield COF 2  and n-perfluorocarboxylic acid fluorides which are hydrolysed by atmospheric moisture to the corresponding perfluorocarboxylic acids. The carrier gases exemplified include NO and SOCl 2 .
Patent GB-534527-A (GB)
Abstract: 534,527. Fluid-pressure servomotor-control systems. SMITH & SONS (MOTOR ACCESSORIES) Ltd., S. and MEREDITH, F. W. July 13, 1939. No. 20449. [Class 135] A servomotor - control system is provided with a follow-up train including a fluid conduit separate from the fluid circuit of the servomotor for transmitting movement of the servomotor to the controller by the transfer of fluid through the conduit, said conduit also communicating through a leak passage with a collapsable fluid reservoir in which a substantially constant fluid pressure is maintained. The Figure shows the invention applied to the actuation of an aeroplane control surface. The power piston 31 is coupled to the control surface by a rod 32 and lever 34 and is controlled by a piston valve 20 actuated by a pair of opposed bellows 11, 15 acting through a rod 13, lever 16 and link 18. The bellows is subject to a fluid pressure depending on the pressure of the controlling variable which may be produced by a gyroscopic apparatus as described in Specification 526,101. The bellows 15 is subject to fluid pressure in a conduit 38 produced by a bellows 39 moved by the lever 34 acting through a lever 42 and spring 40. The conduit 38 is connected to the bellows chamber through a restriction 45 and through a branch conduit 46 fitted with an adjustable constriction 47 with a bellows 48. The outside of this bellows is loaded by a constant pressure maintained by a restricted supply and relief valve 52. A relief valve 54 actuated by a spring-loaded bellows 57 connects the two sides of the power piston in the event of the failure of the compressed air supply and connections 62, 63, lead to a differential pressure gauge for indicating the load on the piston. In a modification the bellows 11, 15 are separately loaded by leaf springs and are coupled to the control valve by a floating lever. In another form the lever 42 acts directly on the bellows 40 and a bellows subject to the pressure in the conduit 38 actuates a switch in circuit with a hold-on relay and electromagnet. In the event of abnormal variation of pressure occurring in the conduit 38 this switch is opened and the electromagnet de-energized permitting a spring to open a relief valve in the compressed air supply conduit and so prevent further movement of the power piston. The control elements are mounted in an air-tight casing 66 from which it is withdrawn through a return pipe 61 and may be used over and over again thus simplifying the problem of cleaning and drying the air. According to the Provisional Specification the choke 47 may be byepassed by a relief valve to prevent damage to the control parts when the control surfaces are manually operated.
Patent GB-1247762-A (GB)
Title: Improvements in an apparatus for machining by abrasion and generation bodies of revolution having a circular generatrix
IPC: B24B5/26
Filed: 1969-10-31
Abstract: 1,247,762. Grinding. SOC. NOUVELLE DE ROULEMENTS. 31 Oct., 1969 [6 Nov., 1968], No. 53501/69. Heading B3D. A method of grinding bodies 8 of revolution having a circular generatrix comprises disposing the workpieces in a driving device 10, 11 and imparting two movements of rotation to the workpieces, one being a rotation of each workpiece about its axis and the other a rotation of all the workpieces with the driving device about the axis OZ<SP>1</SP> of the device, the axis forming a predetermined angle with the axis OZ of rotation of a grinding wheel 6 having a spheroconcave surface, the workpieces being automatically fed into and ejected from the driving device. The grinding wheel is mounted on a carrier 7 rotatable in a sleeve 17 and driven from a motor 16, the sleeve being axially adjustable by a screw mechanism 18. The workpieces are automatically fed into cavities in a driving cage 10 and are rotated about their axes by a track 11 rotated by a motor 26 at a different speed to that of the cage 10 which is driven by a motor 23. The workpieces are held in the cavities by springs or jets of fluid pressure and a circular track 13. The driving device is mounted on a block 27 adjustable about a pivot 28 on a plate 29 to a predetermined position using a gauge block 35, and the plate can be adjusted by a fluid-operated device 32, 33 along a slideway 30 to a position determined by a gauge block 40.
Patent GB-1162846-A (GB)
Title: A Solid Rocket Propellant
Inventor: OVERSOHL WILHELM
IPC: F02K9/20
Filed: 1966-12-01
Abstract: 1,162,846. Propellants. NITROCHEMIE G.m.b.H. 1 Dec., 1966 [1 Dec., 1965; 9 April, 1966], No. 53897/66. Heading F3A. Rocket motor comprising a plurality of degressively burning, elongated propellant grains inhibited at their end faces, at least some of the grains having a six-lobed cross-section define by six slots spaced substantially equidistantly around the periphery of the grain and extending for the length of the grain, a deeper slot alternating with a shallower slot. The six-lobed grains may be of substantially regular hexagonal cross-section, or deformed from the regular cross-section to fit more closely in a cylindrical casing. The individual grains may be adhesively bonded together along their edges. Some of the remaining grains are hollow cylindrical grains with inhibited end faces and two or more longitudinally extending slots, and some have the six-lobed cross-section along part of their length and the hollow cylindrical slotted crosssection along the rest of their length. The individual grains consist of propellant compositions having different burning rates.