baber/WOPTO huggingface dataset:
Patent GB-490231-A (GB)
Title: Improvements in and relating to electric circuit-breakers with arc-extinguishing means
IPC: H01H33/76
Filed: 1937-02-11
Abstract: 490,231. Gas - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 11, 1937, No. 4125. Convention date, Feb. 11, 1936. [Class 38 (v)] An arc-extinguishing chamber has walls composed of organic material capable of yielding, under the heat of the arc, a quenching gas or vapour, and, for preventing soot-formation, there is included in the material of the latter an impregnating medium comprising a fluid artificial resin such as a urea-aldehyde condensation product with which is admixed a filling material capable of yielding carbonic, such as ammonium carbonate or bicarbonate, or an ammonium carbonate having the hydrogen of the ammonium replaced wholly or partly by aliphatic or aromatic groups, for example, tetra-ethyl ammonium carbonate and carbonates ofmonomethylamine. Linen, paper, and wool are suitable as the organic material, and the impregnating medium amounts to more than 100 per cent of the latter so as substantially to cover it and to play the part of gas-yielding material. The Specification as open to inspection under Sect. 91 states also that calcium or magnesium carbonate, or calcium bicarbonate, could be added to hard rubber during the vulcanizing process, and refers also to marble sand and chalh. for example 50 per cent by volume marble sand and 50 per cent caoutchouc and sulphur, boric acid being capable of use as part of the filler. This subject-matter does not appear in the Specification as accepted.
Patent GB-572080-A (GB)
Title: Improvements relating to fuel injection systems for internal combustion engines
IPC: F02M67/12
Filed: 1944-03-06
Abstract: 572,080. Injecting fuel. ROVER CO., Ltd., and BOYLE, W. R. March 6, 1944, No. 4136. [Class 7 (iii)] In a fuel supply system in which a pump delivers fuel through a nozzle opening into the induction pipe or cylinder, the fuel outlet, which may have a self-closing valve m, is surrounded by a passage f connected by a pipe j<1> to the exhaust pipe e, the exhaust gases serving to disperse the fuel delivered from the nozzle. The gas may have a whirling motion or throw the fuel against an impact plate. A valve i controls the flow of the exhaust gas and when the nozzle delivers directly into the cylinder, a non-return valve is provided in the passage f.
Patent GB-695149-A (GB)
Title: A corset
IPC: A41C1/16
Filed: 1951-02-22
Abstract: 695,149. Corset stiffeners. MENZ, E., and SCHMIDT, M. W. Feb. 22, 1951, No. 4291/51. Class 141. [Also in Group XXXII] A corset of the kind having stiffening springs removably inserted in pockets and resilient both longitu. dinally and transversely is characterised in that the pockets are pro. vided at the front, rear and both sides. The ratio of length to breadth of the spring is about 3: 1 and it presses against the pocket seams Each spring may be oval or U. shaped with one leg longer than the other. It may be made of plain or coiled or zig-zag wire and the oval stiffeners may each have a bulge at the lower end, Fig. 2. In the case of a coiled or zig-zag wire stiffener the pitch of the coils or loops may vary throughout the length. The coils may be flattened and two oppositely wound coils may be engaged to form the stiffener.
Patent GB-552356-A (GB)
Title: Improvements relating to the method of producing hollow or tubular bodies of steel or other metals and apparatus therefor
IPC: B21J9/04
Filed: 1942-04-01
Abstract: 552,356. Billet piercing. MILLSPAUGH, W. H. April 1, 1942, No. 4344. (Class 83 (iv)] Hollow bodies, particularly those of centrifugally cast steel for the production of steam generator drums or large tubes, are supported in a container and a mandrel is driven completely through by a series of hammer blows. The container 2 has sufficient taper to permit extraction of the pierced billet and may have a correspondingly tapered liner 3. It is supported on a base 1 that also supports a pedestal 4 on which the billet A rests. The mandrel 5 with enlarged head 6 is supported by a crosshead 7 guided by rods 8 in tubes 9 welded to the container.
Patent GB-1019094-A (GB)
Title: Improvements in disc brakes for vehicles
Inventor: BROWN PETER WILLIAM
IPC: F16D55/228
Filed: 1963-05-02
Abstract: 1,019,094. Disc brakes. GIRLING Ltd. April 16, 1964 [May 2, 1963], No. 4365/63. Heading F2E. In a disc brake of the kind in which friction pads for engagement with opposite faces of a brake disc rotatable with the wheel are mounted in a non-rotatable caliper which straddles a portion of the periphery of the disc, the caliper being mounted to swing about an axis substantially at right angles to the axis of the brake disc, the friction pad on one side of the disc is located radially inwards from the pad on the other side and one pad is applied to an adjacent face of the disc by actuating means associated with the caliper, the other friction pad being applied to the other face of the disc by the reaction on the caliper. In the embodiment shown in Fig. 2, the brake disc is constructed as a ring 41 extending radially inwards from an axially extending flange which is secured by bolts 42 to a pressing 43 mounted on the hub of a wheel and this assembly is housed within the rim 44 of the wheel which is carried by a dished disc 45. The inner periphery of the ring 41 is straddled by a floating caliper 46 which is mounted-to swing about a stationary pivot 55. A friction pad 47 is adapted to engage the inboard face of the ring and is carried by a rigid backing plate 48 guided on pins 49 and urged into engagement with the disc by a piston rod 51 of a piston working in an hydraulic cylinder in the inboard limb of the caliper. A second friction pad 52 is mounted on a backing plate 53 and guided on members 55 to be located in the caliper on the outboard side of the ring and is urged into engagement with the outboard face of the ring by the reaction on the caliper when the hydraulic cylinder is pressurized. The friction pads 47, 52 are both tapered in a radial direction and the inner edge of the ring 41 is chamfered at 54 at such an angle that the clearance between this edge and the caliper does not vary appreciably as the friction pads wear and the angular position of the caliper changes.
Patent GB-293279-A (GB)
Title: Improvements in or relating to hose clamps
IPC: F16L33/08
Filed: 1928-02-13
Abstract: 293,279. Robinson, L. Feb. 13, 1928. Clips, band.-Relates to detail improvements in a band clip of the type in which a tangentially arranged worm 5 housed in a casing 4 attached to one end of a band 3 engages depressions 6 formed in the surface of the band at its other end. The casing 4 is bent cylindrically to points 12 to surround the worm over more than half of its circumference, and the lower part of the casing forming a channel for passage of the end of the band engaged by the worm has upstanding lugs 7 which center a corresponding slot in the end of the band to which the casing is attached, and the band is bent to provide shoulders 11 bearing against the ends of the base of the casing and also to make the inner face of the casing flush with the inner face of the rest of the band. The worm is mounted by means of a. bush 14 fitted in the end of the casing and having a tapered opening in which the end 15 of the worm is expanded.
Patent GB-582447-A (GB)
Title: Improvements in or relating to power supply systems for carrier communication systems
IPC: G05F1/46
Filed: 1944-03-10
Abstract: 582,447. Automatic control systems; supply systems for thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. and KELLY R. March 10, 1944, No. 4482. Addition to 559,377. Drawings to Specification. [Class 38 (iv)] Voltage.-In an automatic voltage control - system according to the parent Specification, the output voltage/current characteristics of the high-tension and low-tension supplies are matched at least over the operating load range so that both voltages remain constant when the loads vary in a fixed ratio. Manual rheostats provided in series with the outputs are adjusted to retain this condition for different load ratios. Typical characteristic curves are given. Specification 515,948 is referred to.
Patent GB-348192-A (GB)
Title: Improvements in insulating compounds
IPC: C08C19/20
Filed: 1930-02-10
Abstract: A plastic composition for submarine cable insulation comprises (1) one or more rubber derivatives resulting from the exothermic reaction with rubber of a sulphonic compound having the grouping R - SO2 - X wherein R represents an organic radical or hydroxy group, and X represents a hydroxy group or chlorine; and (2) 10-50 per cent of guttapercha, balata, &c. deresinated or not. Various minor constituents such as antiagers &c. may be included. The proteins present in the raw rubber are broken down wholly or in part by the treatment with the sulphonic compound, to water soluble products which may be washed out.  United States Specification 1,605,180 is referred to.
Patent GB-1039541-A (GB)
Title: Improvements in or relating to valves for controlling fluid flow
Inventor: JONES JOHN EDWARD HERBERT
IPC: F16K27/10
Filed: 1963-02-05
Abstract: 1,039,541. Making valves. BABCOCK & WILCOX Ltd. Feb. 5, 1964 [Feb. 5, 1963], No. 4599/63. Heading B3A. [Also in Division F2] A gate valve has a body welded to a pipe 27 with an intermediate slotted portion 31, 33 to permit movement of the gate 65 into the pipe to a closed position, the gate engaging seating surfaces 61, 63. The body is formed from two spherical segments which are low alloy steel, up to and including austenitic steel, or of pressed steel clad by the deposition of weld metal either before or after pressing, the segments being electro-slag welded together along a horizontal diameter or in a plane containing the axes of the pipe 27 and of a forged extension 16 forming a chamber for the gate. The seating surfaces 61, 63 consist of hard facings on sleeves 45, 47 welded to the interior of the pipe 27 which may be of slightly different material from the body. In alternative constructions, the latter is provided with vertical cylindrical extensions or is of generally cylindrical shape while the valve seats are formed on separate annular members welded to recesses at the ends of the sleeves 45, 47.
Patent GB-1213933-A (GB)
Title: Improvements in or relating to fire extinguishers
Inventor: HUTHSING CHARLES KEET JR
IPC: A62C13/00
Filed: 1969-01-28
Abstract: 1,213,933. Reciprocating pumps. C. K. HUTHSING JNR. Jan.28, 1969 [Oct.22, 1968], No.4703/69. Heading F1A. [Also in Division A5] A portable hand-pump operated fire extinguisher comprising a fluid tank 10 into which extends a manually actuable pump includes pump handle 17 and resilient U-shaped carrying handle 29 pivotally mounted by legs 30, 31 on tank 10, handle 29 being pivotable into an overlying, snap-lock position with the hand-grip of handle 17 when the latter is retracted towards the tank, whereby the two handles are unified to a single locking and carrying handle. The pump is enclosed in housing 20 mounted in opening 25 of the upper wall of the tank and consists of piston 19, connected to stem 18 of handle 17, spring 24, and piston head 23 (incorporating a check valve) adjacent to semi-spherical screened fluid inlet 22.
Patent GB-610086-A (GB)
Title: A process for the production of asphaltic bitumens
IPC: C10C3/02
Filed: 1946-02-14
Abstract: Asphaltic bitumens are prepared from asphaltic mineral oils and the working-up products thereof (which may themselves be bitumenous substances) by treating preferably above 100 DEG C. with up to 5 per cent cyclic compounds containing one or more nitro and/or nitroso groups and also one or more oxygen containing acid groups as nuclear substituents.  The treatment may be effected by incorporating the cyclic compound which may previously be dissolved in a suitable solvent or diluent into the initial material which is in liquid form or may be brought into that state by liquefying or dissolving in a suitable solvent.  The acid groups other than nitro or nitroso groups comprise OH, SO3H, SO2H, SO2CL, COOH and COCL.  There may also be present substituents which need not be directly united to a nucleus such as alkyl, oxyalkyl, aldehyde, keto, amino and iminogroups and halogens.  Examples of substances with which the treatment may be carried out are picric acid, dinitrocresol, nitroso phenol, nitrocyclohexyl alcohol, nitro-oxyquinoline, nitrobenzene sulphonic acid, dinitrobenzene sulphonic acid, nitrosolbezene sulphonic acid, nitronapthalene sulphonic acid, nitrobenzene sulpho-chloride, nitrobenzee sulphamide, chlor-nitrobenzene sulphonic acid, nitrobenzoic acid and trinitrobenzryl chloride.  Specification 440,311, [Group XII], and German Specification 642,259 are referred to.
Patent GB-537567-A (GB)
Title: A process for manufacturing compositions particularly suitable for road construction purposes
IPC: C09K17/40
Filed: 1940-03-14
Abstract: 537,567. Road materials. FIFE, J. G. (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). March 14, 1940, No. 4773. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 7, 1940.] [Class 22] Compositions suitable for road construction purposes consist of sand, clay (with or without the addition of stone chippings), water and asphaltic residues originating from mineral oils or mineral oil products and containing at least 2 per cent. by weight of solid paraffin wax, or tars containing at least 1 per cent. by weight of solid paraffin wax. Cracking residues may be used, and the residues or tars may be applied as such, diluted with solvents such as gasoline, or in the form of aqueous emulsions.
Patent GB-736783-A (GB)
Title: Improvements in or relating to lubricating compositions
Inventor: BURNETT ROBERT LE GRICE
IPC: C10M169/00
Filed: 1952-02-27
Abstract: A lubricating composition comprises a halogenated hydrocarbon having 14-42 per cent fluorine content and 37-61 per cent chlorine content and a substantially inert solid filler of particle size not greater than 100m .  Suitable halogenated hydrocarbons are those prepared by reacting refined white spirit or chlorinated naphthalene with chlorine trifluoride in the presence of an inert solvent according to the process of Specification 633,678, or by reacting chlorine trifluoride with hexachlorobenzene and/or decachlorodiphenyl and/or octachloronaphthalene according to the process of Specification 695,811, [Group IV (b)].  The term "inert filler" is defined as a filler which will withstand chemical attack by at least one of the following: corrosive gases such as chlorine and fluorine, acids such as hydrochloric and sulphuric acids, and aqueous alkalies such as sodium hydroxide solution.  Suitable fillers are silica, carbon black, phthalocyanines, calcium fluoride, corundum, china clay, titanium dioxide and octachloronaphthalene.  In the examples, lubricating compositions are described which are in the form of greases, pastes or creams and which consist of a halogenated hydrocarbon produced by reacting chlorine trifluoride with a mixture of hexachlorobenzene, decachlorodiphenyl and octachloronaphthalene according to the process of Specification 695,811 [Group IV (b)], and silica, carbon black, graphite, octachloronaphthalene, copper phthalocyanine or chlorinated copper phthalocyanine.  According to the Provisional Specification, the halogenated hydrocarbon should contain 14-35 per cent fluorine and 30-60 per cent chlorine. Specification 669,048 also is referred to.
Patent GB-508598-A (GB)
Title: Improved press for moulding powdered material
IPC: B30B15/00
Filed: 1938-02-18
Abstract: 508,598. Moulding powdered materials. MACEY, H. H., and BRITISH REFRACTORIES RESEARCH ASSOCIATION. Feb. 18, 1938, No. 5137. [Class 87 (ii)] A press for moulding clay or other powdered material is provided with means for maintaining a zone of low pressure around the plunger and the mouth of an openmouthed mould during the approach of the plunger to the mouth of the mould, whereby air is removed and a dense brick or article is obtained. As shown, the press has a mould box 4, a lower plunger 8 and an upper plunger la. The plunger la is carried by a hollow plunger 1 having a slide box 2 provided with a peripheral rubber or like beading 7 adapted to make a tight joint with the top of the mould box. The plunger 1 is connected to a vacuum pump and has ports 3 adapted to be uncovered by the slide box when the plunger 1 descends. In operation, powder is placed in the mould box and the plungers move inwardly, part of the air in the mould and around the upper plunger passing through grooves 5 in the sides of the plunger 1. When that plunger descends further and into the position shown, the ends of the grooves 5 are closed by the slide box 2, and the ports 3 are uncovered. The final pressure is then applied. The upper plunger moves upwardly and projections 6 thereon raise the slide box 2, while the lower plunger rises to eject the moulded brick.
Patent GB-657721-A (GB)
Title: Improvements in or relating to headers for steam superheaters
IPC: F22G7/06
Filed: 1949-02-25
Abstract: 657,721. Steam superheaters; headers. SUPERHEATER CO., Ltd., and MELHUISH, H. Feb. 25, 1949, No. 5192. '[Class 123(iii)] A header for a locomotive &c. smoke-tube superheater comprises wrought steel steam distributing and collecting channels 1, 2 which are closed at their ends by welded-on plates 17, 18 and 19, 20 respectively and are provided with finger chambers or pockets 3, 4, and steam inlet and outlet pipes 22, 23 welded to the channels at appropriate apertures 13, 14 and 21 therealong; the pockets 3, 4 are of cast iron or steel and provided with neckings 15, and, preferably, the pipes 22, 23 are also constituted by ferrous metal castings, although they may be made of wrought steel. The two channels may be spaced from one another by overlapping lugs 25, 26 welded along the opposed walls thereof, and at each end a lug 27 welded to one channel engages a horizontal U-shaped member 28 on the other channel and is secured to it by a bolt 29; alternatively the two channels are held together in spaced relationship by a longitudinally-extending bar, adapted to engage recesses in lugs on the walls or neckings of the pockets 3, 4, and securing bolts or studs. The header is mounted on the usual supporting brackets on the smoke-box wrapper plate by plates 30 welded to the extreme end pockets 3, 4. In the construction shown the channels are each constituted by two steel strips 5, 6, the longitudinal edges of which are bent downwardly and upwardly respectively, and are welded together at 7, 8 along their opposed edges; they may, however, be formed of weldless steel tubing rolled or pressed to the required cross-section.
Patent GB-717176-A (GB)
Title: Improvements in or relating to spreader stokers
Inventor: MILLER JOHN MATTHEWSON
IPC: F23K3/18
Filed: 1952-02-27
Abstract: 717,176. Feeding fuel to furnaces. BABCOCK & WILCOX, Ltd. Feb. 27, 1953 [Feb. 27, 1952]; No. 5195/52. Class 51 (1) A spreader stoker includes a horizontal or substantially horizontal track 23 onto which fuel is fed, an orifice 30 connected with a supply of elastic fluid under pressure and which projects a jet of fluid along the track, and a deflector 24 at the end of the track having an upwardly-inclined surface from which fuel is discharged at an upward inclination to the horizontal. Specifications 638,173 and 717,178 are referred to.
Patent GB-364905-A (GB)
Title: An improved portable cooking or liquid heating appliance
IPC: A47J36/26
Filed: 1931-02-19
Abstract: 364,905. Portable stoves. EVERTON, Ltd., E. T. and PAD MORE, A. T., Rea South Street, Birmingham. Feb. 19, 1931, No. 5208. [Class 126.] A picnic stove of the type comprising a pan-like member a containing a lamp, and adapted when in use to support a utensil and when out of use to accommodate it for packing, comprises two strip members b connected to the wall of the pan a by vertical pivots b<1> and adapted to lie against the wall, when out of use, or to be swung inwardly to a position, shown in broken lines, in which they serve to support the utensil within the pan. The members b are, in the apparatus shown, of arcuate form, and when out of use lie in an annular groove a<2> in the wall of the pan, being retained in this position by a stud b3 engaging a slot a4 in the wall. Vertical ribs a<6> pressed inwardly on the wall of the pan frictionally engage the lower rim of the utensil when it is packed in order to retain it in the pan.
Patent GB-671249-A (GB)
Title: Improvements in magnetic suspensions
IPC: F16C39/06
Filed: 1950-03-01
Abstract: 671,249. Bearings. METROPOLITANVICKERS ELECTRICAL CO., Ltd. March 1, 1950 [March 30, 1949], No. 5219/50. Class 12 (i). [Also in Group XXXV] Cross - magnetization is prevented in a magnetic bearing by means of a magnetic shunt of high permeability and low coercive force placed in contact with the magnet and conforming substantially to the cross-section of the magnet at the surface of contact. In the form shown, a single shunt 1 is fixed at the top of the outer cylindrical permanent magnet 2 which is supported in a non-magnetic housing 3 which may be die cast, while the supported member 6 which is also housed in a die-cast body 7 is located laterally by a guide pin 5. In modifications, the shunt may be placed at the bottom or top and bottom of the outer member or the magnet may be axially divided and the shunt placed at the centre. Alternatively, the shunt may be attached to the inner member. In a further modification, the permanent magnet structure comprises a series of permanent magnet laminµ magnetized across their thickness and interleaved with laminµ of material of high permeability and low coercive force. Suitable thicknesses of shunt are mentioned. Specification 550,788, [Group XXXVI], is referred to.
Patent GB-629629-A (GB)
Title: Improvements in cams for operating valves of internal combustion engines
IPC: F01L1/08
Filed: 1947-02-24
Abstract: 629,629. Valve-gear.. AUSTIN MOTOR CO., Ltd., and BISHOP, J. L. H. Feb. 24, 1947, No. 5270. [Class 7 (vi)] A valve-operating cam is designed so that the parts DE, EG, GH, Fig. 1, give an accelerating curve, Fig. 2, consisting of three half-period' sine waves DdE, EfG and GgH. The lift curve developed from the above acceleration curve, consists of portions corresponding to the parts DE and GH represented by an equation of the form y = -R sin mx. + nx i.e.. a negative sine wave combined with an ascending straight line and a portion corresponding to EG which is a halfperiod sine wave. Constant velocity ramps CD, and HJ may be provided at the ends of the operative part of the cam to take up the clearance. To allow for compression in the push rods during the acceleration periods DE and GH, and expansion of the rods in the parts EG, the amplitudes of the negative sine waves in the parts DE and GH and the positive sine wave in the part EG may be reduced. Specification 573,294 is referred to.