baber/WOPTO huggingface dataset:
Patent GB-1503494-A (GB)
Title: Tracked air cushion vehicles
IPC: B60V3/04
Filed: 1974-05-08
Abstract: 1503494 Air cushion vehicles; railway systems BLISS PENDAIR Ltd 8 May 1975 [8 May 1974] 20244/74 Headings B7K and B7L An air cushion vehicle transportation system comprises a load carrying body 2 supported by hangers 4 from a lift platform 6 and by struts 14 from end bogies 10, the platform and bogies running within an inverted channel section track 8 and being supported by ambient air pressure due to the formation of a zone 12 of lower-than-ambient pressure, the struts 14 being so constructed as to bias the bogies 10 towards the top wall of the track 8 by a force equal to at least a substantial portion of the weight of the bogies. The struts 14 are each constructed as an hydraulic piston and cylinder device (Fig. 3, not shown) connected to an accumulator 16 and a motor driven pump which maintains a substantially constant pressure within the strut cylinder so that the bogie is supported at all times. As shown in Fig. 7 air is drawn from the suction space 73 by a fan within a main duct and the space is sealed laterally by edge sections 50 each comprising a hollow section having a bearing 58 slidably mounted on a rod 57 and guided by rollers 54, the section being sealed to lift platform 6 by a flexible seal 55 and connected by a flexible duct 70 to the main duct below fan whereby the section may be fed with pressurized air. A skirt assembly 52 is supported by pivot 64 on a spring-loaded slidable rod 53 and further connected to section 50 by a bellows duct 71, the assembly comprising a plenum chamber 60 formed with an apertured resilient layer 61, and a replaceable strip 62 forming a labyrinth 67 within which are formed positive pressure air cushions which co-operate with the respective vertical inner wall of the track. A seal 66 connects section 50 to the skirt assembly 52. The end bogies are provided with rollers to engage the inner top and side walls of the track and apparatus is provided to automatically maintain platform 6 in an optimum position in the depth of the track (Fig. 9, not shown).
Patent GB-768261-A (GB)
Title: Improvements in or relating to apparatus for slotting the ends of metal rods
IPC: B21F13/00
Filed: 1954-07-12
Abstract: 768,261. Making pit props; shearing. SOC. ANON, DES FORGES & BOULONNERIES HERMANT HICGUET ET D'ARS-SUR-MOSELLE. July 12, 1954 [July 11, 1953], No. 20316/54. Classes 83 (2) and 83 (4). The end of a metal rod 1, Fig. 3, e.g. a pit prop, is split by a wedge-shaped blade moved relatively to the rod in a direction parallel to the axis of the rod. The blade 8, Fig. 1, having a cross-section of the shape shown in Fig. 2 is secured in a block 3 having a cylindrical bore 4 the inner end of which is surrounded by a hardened ring 5. A steel rod 1 heated to about 700‹ C. is fixed and the bore 4 is passed over the end of the rod which is split by the blade 8 into two portions which are deflected through apertures 26, 27 in the sides of the block 3. When the rod is slit to the required depth, the blade 3 is withdrawn. The blade 8 is adjustable lengthwise so that the full length of the cutting edge can be used.
Patent GB-1372914-A (GB)
Title: Apparatus for rolling metal strip
IPC: B21B13/20
Filed: 1972-05-02
Abstract: 1372914 Rolling mills W F LAUENER AG 2 May 1972 [6 May 1971] 20328/72 Heading B3M A planetary rolling mill, which is suitable for rolling strip B issuing from a continuous casting plant, includes a pair of heavy feed rollers 1 and 2, and a pair of roll assemblies carrying work rolls 5 and 6. The feed rollers, which are designed to absorb vibrations produced by the mill, weigh between 80 and 120 kg. per centimetre of strip width. They are driven by toothed gears 9 and 10 and urged together by hydraulic cylinders 16.  Each roll assembly includes a main shaft 3 or 4 carrying spaced parallel rolls 5 or 6, the shaft being motor driven through reduction gearing. The necks of the rolls (Fig. 2) are supported in spiders 42 and are provided with gears 38 meshing with toothed sleeves 37. The sleeves are driven by toothed belts 35 to rotate the rolls before they initially contact a workpiece. Resilient or friction clutches are associated with the gears 38 to allow for variations in the speed of each roll as it contacts the workpiece. The belts are driven by hydraulic motors supplied by a motor-driven pump. The roll assemblies are carried in chocks which are urged together by hydraulic cylinders 39 and are adjustable by screws 40. Oil galleries in the roll shafts 3 and 4 and the spiders 42 supply oil to the rolls, and sprays 49 supply an oil emulsion to the roll surfaces adjacent the strip. The strip can follow a horizontal path, as shown, or can move along an inclined path, or upwardly or downwardly.
Patent GB-459311-A (GB)
Title: Coke oven gas by-product recovery
IPC: C10K1/04
Filed: 1935-07-17
Abstract: 459,311. Condensing and washing processes. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Koppers Co. of Delaware ; Koppers Building, Pittsburg, U.S.A.) July 17, 1935, No. 20396. [Class 55 (ii)] Coke-oven gas is sprayed with ammonia liquor in a main 13 immediately as collected from ovens 11 and, separated from heavy tar and liquor in a downcomer 17, passes to an electrical tar-precipitator 20 at temperatures of 180-200‹ F. or somewhat less so that naphthalene-free tar is obtained. The still hot gas is washed with ammonia liquor in a cooling tower 27 and the cooled gas with the naphthalenefree tar in a tar-scrubber 41, the gas finally passing through an ammonia saturator 53 and acid separator 55 to an indirect cooler 57. The tar and liquor are separated in a tank 22, the liquor being returned to main 13 and the tar pumped through a cooler 46 to the tar scrubber. Wash liquor from tower 27 drains to a decanter tank 31 from which naphthalene and light tar or tar oils discharge into a sump 33 and the watery condensate passes through a filter 35 and cooling coils 36 back to the washer 27. Surplus condensate together with that from the final cooler 57, is pumped to a still 65 and ammonia vapour is returned to the gas at the saturator inlet. In a modification, the saturator is located in front of the primary cooler and washer and the final cooling is effected in a relatively small direct contact tower supplied with the same condensate as the primary cooler. Surplus condensate from the coolers is supplied to a dephenolizing tower.
Patent GB-841312-A (GB)
Title: Improvements in or relating to the manufacture of polymeric methacrylic acid products
Inventor: WARSON HENRY
IPC: C08F220/12
Filed: 1955-07-14
Abstract: Water-insoluble, alkali-soluble copolymers are made by adding an ester of acrylic or methacrylic acid, e.g. methyl methacrylate to an aqueous solution of methacrylic acid in a proportion of from 10 to 70% of the ester on the weight of total monomers and effecting copolymerization at a temperature not substantially exceeding 65 DEG C. in the presence of a percompound as a catalyst, whilst agitating to form an aqueous dispersion of the copolymer. Catalysts specified are the alkali metal and ammonium persulphates, an additional quantity of which may be added during the course of the reaction. The polymerization may be conducted in two stages, first at a lower and then at a higher temperature. The aqueous polymerization medium may contain a water miscible organic solvent such as methanol or acetone.  In an Example (6) the use of a polymerization medium containing a small quantity of formic acid is illustrated.  The copolymer products are soluble in aqueous caustic soda and ammonia.
Patent GB-1328924-A (GB)
Title: Production of aldolization products from isobutyraldehyde and  glyoxal
IPC: C07H9/04
Filed: 1971-04-19
Abstract: 1328924 Aldolization BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [28 Jan 1970] 20474/71 Heading C2C [Also in Division C6] Isobutyraldehyde and glyoxal are reacted in the presence of a tertiary amine to give aldolization products comprising: 2,2-dimethyl-3- hydroxysuccindialdehyde (I); 2-hydroxy-3,3- dimethyl-4-oxotetrahydrofuran (II), and 3- isopropyl - 7 - hydroxy - 8,8 - dimethyl - 2,4,6- trioxabicyclo[3,3,0]octane (III). I and II are claimed per se. Suitable amines include mono- and poly-amines and ion exchangers containing tertiary amino groups. Water may be present, optionally with solubilizing solvents. II may be obtained by treating I with a tertiary amine. I and II are stated to be active against houseflies and II and III against aspergillus, while I is also stated to have tanning activity.
Patent GB-211799-A (GB)
Title: Improvements in paper streamers
IPC: A63H37/00
Filed: 1923-08-11
Abstract: 211,799. Kasuga, H. Aug. 11, 1923. Ornamenting.-A paper streamer is formed from several sheets of paper of different colours, wound upon metallic or like cores 1 - - 5 to any desired form, e.g. triangular. The rolls are assembled as shown and the ends of the sheets are laid one upon the other as at 6 and attached to one end of a wrapper 7, the sheets then being cut to form a number of tightly-wound strips and the whole fastened by the wrapper 7 and adhesive 10.
Patent GB-348949-A (GB)
Title: Electric snap-switch
IPC: H01H19/64
Filed: 1930-07-08
Abstract: 348,949. Snap-action switches. FAIRWEATHER, W., 29, St. Vincent Place, Glasgow.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) July 8, 1930, No. 20624. [Class 38 (v).] Bases; contacts; indicators, applications of. - A snap - switch comprises a cover, in which is journalled a switch - key, and a u n i t switch - section including a fixed contact-carrying casing and a rotary contact-member journalled in the casing. The cover and casing have interengaging means for centring these members and the key and rotary member have interengaging means for coupling them together when the cover is applied to the switch-section. The bottom of the casing and rotary member are formed to receive another switch section, so that a stack is formed having one cover and a single switch-key. Figs. 3 and 5 show a single-pole switch comprising a cover 2, a unit 1 and key 5 terminating in a recess 23 which engages a similarly-shaped projection 21 on a rotary member 9. The under side of the unit 1 is recessed at 14, and apertured at 17 to receive a projection 18 at the lower end of the member 9, which also has a bearing formed in the recess 20 in the member 2. A pair of contacts 11 in a slideway in the member 9 are pressed outwardly by a spring 13 into engagement with contacts 6 which are located on the faces of a ratchet-tooth construction arranged in a well in the unit 1. One pair of terminal lugs 7 attached to the contacts 6, are tapped to receive screws 8 in peripheral apertures 30<1> which are covered by slides 30. An indicator disc 24 fitting over the member 9 so as to be movable therewith co-operates with a window 29 in the cover 2. To make a multi-pole switch, such as 3-pole in Fig. 7, a second unit 1 is applied to the first unit so that the projections 15, 19, 21 of the second unit engage respectively in apertures 14, 17, 22 of the first unit. In the second unit, however, the axis of the contacts is at right-angles to that of the first unit, as shown in Fig. 7, so as to separate the terminals as widely as possible.
Patent GB-601395-A (GB)
Title: Products having a pile surface of porous rubber elements and method of producing such products
IPC: B29B7/74
Filed: 1945-08-11
Abstract: A pipe-like surface is formed on an embossed base layer by spraying a fine stream of a natural or synthetic rubber dispersion thereon and intermingling in said stream before impact a coagulant for the rubber dispersion.  For the spraying operation a double spray gun is employed, the nozzle 34 supplying rubber dispersion and the nozzle 35 supplying a coagulant, the two nozzles being hinged together at 36. The rubber dispersion is supplied to the inner nozzle 39 from a flexible hose 41 through a passage 38 and is atomized by compressed air supplied from a flexible hose 49 through duct 47 to air chamber 45.  The passage 47 is branched at 50 and leads through the hinge to supply air to the other nozzle 35, in order to atomize the coagulant supplied through a flexible hose 56 and duct 55.  When a flattened spray is required caps 44 and 53 may be used, these caps having diametrically opposed ears 68 with air outlets 69 directed inwards towards the spray. Varying sizes of inner nozzle tops 39 and 52 can be used.  The sprays are arranged to intersect about 3 inches from the nozzles. A suitable rubber dispersion consists of centrifuged <PICT:0601395/III/1> latex, dimethylamine, formaldehyde, water, phthalic anhydride, potassium oleate, casein, sulphur, bentonite, methylethylamine, a ketone-arylamine condensation product, colouring matter, wetting agents and preservatives.  A composition which may be applied to the embossed base layer prior to spraying consists of pale crepe, a condensation product of acetone and aniline, benzol-thiazyl-disulphide, di-ortho-tolyl-guanidine, whiting, zinc carbonate, rosin, powdered sulphur, and a hydrocarbon solvent.ALSO:An adhesive consists of pale crepe, a condensation product of acetone and aniline, benzo - thiazyl - disulphide, di-orthotolyl-guanidine, whiting, zinc carbonate, resin, powdered sulphur and a hydrocarbon solvent.
Patent GB-478886-A (GB)
Title: Improvements in safety or pressure relieving devices for fluids
IPC: F16K17/16
Filed: 1936-07-27
Abstract: 478,886. Pressure-relieving devices. EVERSURE ACCESSORIES, Ltd., and VENNER, D. J. V. July 27, 1936, No. 20685. [Class 135] A frangible disc pressure. relieving device comprises a disc 3 of brass or thin pen steel clamped against a seat 4 by a screwed member 5 bored to provide an escape channel and also to serve as a die for a punch 7. The punch which may have a flat end or the periphery may be sharpened is formed integrally with a piston 6 slidable in the body portion 2 under the pressure in the fluid container. Passages 10, 11 are formed in the piston and body portion respectively, which passages connect to provide a discharge passage when the disc has been pieced. According to the Provisional Specification the piston and punch may be omitted.
Patent GB-270930-A (GB)
Title: Separation of tertiary from secondary and primary amines
Filed: 1926-08-21
Abstract: 270,930. British Dyestuffs Corporation, Ltd., Rodd, E. H., and Everatt, R. W. Aug. 21, 1926. Amines.-Tertiary amines are separated from admixed primary or secondary amines by treating the mixture with chlorsulphonic acid which converts the primary or secondary amines into a sulphamic acid. If the proportion of secondary amine exceeds 15 per cent a solvent or a further quantity of the tertiary amine is added. In an example, a mixture of mono- and di-ethylaniline is agitated and chlorsulphonic acid is run in. The mixture is made alkaline and the diethylaniline removed by steam distillation; the sulphamate is acidified and hydrolyzed by boiling to reform the monoethylaniline. The process may be applied similarly to the separation of mono- and di-ethylo-toluidines or of mono- and di-methylanilines.
Patent GB-716035-A (GB)
Title: Improvements in and relating to methods of preparing organopolysiloxane elastomers
IPC: C08K5/55
Filed: 1951-09-03
Abstract: A polysiloxane rubber is made by polymerizing a liquid heat-curable polysiloxane containing 1.75 to 2.25 hydrocarbon radicals per silicon atom, using as polymerization catalyst 0.1 to 5.0 per cent. by weight of a boron hydride, until the polymer has the consistency of a gum, mixing the gum with a filler and, as curing catalyst either (a) 0.5 to 5 per cent. of benzoyl peroxide or tertiary butyl perbenzoate or (b) a further 0.1 to 5 per cent. of a boron hydride, based on the weight of the polysiloxane, milling the mixture until homogenous, moulding it to the desired shape at 150 DEG -200 DEG C. under pressure, and curing it by further heating at 150 DEG -200 DEG C. Suitable linear and cyclic polysiloxanes are described in J.A.C.S. 63, 1194 (1941) and in Specifications 586,187, 594,481 and 618,453. Boron hydrides specified are decaborane (B10H14), pentaborane (B5H9), hexaborane (B6H10), the ammonia complex of diborane, B2H6.2NH3, diphenyldecaborane, and the reaction products of B10H14 with hexamethylenetetramine and with p.p1-diaminodiphenylmethane.  The siloxane gums may be made by mixing liquid siloxanes with the boron hydride and allowing the mixtures to stand, with or without agitation, at normal or elevated temperatures.  In examples, (1) elastic gums are made by mixing liquid dimethylpolysiloxane with varying amounts of decaborane dissolved in carbon disulphide, and heating the mixtures to 70 DEG C.; (2) the resulting gums are compounded with titania and benzoyl peroxide or decaborane, heated under pressure and cured at 200 DEG C.  Other fillers specified are zinc oxide, talc, ferric oxide, silica aerogel, lithopone and diatomaceous earth. The elastomers are useful in making gaskets, electrical conductor insulation and shock absorbers.
Patent GB-420113-A (GB)
Title: Improvements in or relating to sheet metal drums or containers and closures therefor
IPC: B65D45/34
Filed: 1933-07-24
Abstract: 420,113. Securing covers of metal drums &c. WAGSTAFF, H., 21, Bridgewater Street, Liverpool. July 24, 1933, No. 20757. [Class 21] The detachable flanged cover of a sheet metal drum &c. is clamped in position by a contractible ring 6 embracing the flange, the ends of which are drawn together by rotating a cam element 12 by means of a handle 14. The cam is locked in position by a flat 18 and an abutment 20 and /or by a wire passing through an aperture 19 in plate 7 and through an aperture in the cam disc. This wire may if desired be sealed.
Patent GB-319098-A (GB)
Title: Improvements in desulphurising artificial products made from viscose
IPC: D01F11/02
Filed: 1928-07-18
Abstract: 319,098. Imray, O. Y., (Herminghaus & Co., Ges.). July 18, 1928. Cellulose xanthates.-Artificial silk, films, and other products made from viscose are desulphurized by means of a desulphurizing agent which is either free from water or contains a proportion of water insufficient to have any swelling action on the product for example not more than 10 per cent of water. Suitable reagents are liquid organic desulphurizing agents such as pyridine or a solution of an inorganic or organic desulphurizing agent in an organic solvent or mixture of organic solvents, for example a solution of phenol in ethyl alcohol in the ratio 1: 5; solutions of crystallized sodium sulphide or ammonium sulphite in an alcohol, preferably saturated solutions in ethyl alcohol; solutions of pyridine in methyl alcohol or ethyl alcohol, for example in the ratio 1 to 5; solutions of glycerine in an alcohol, for example methyl or ethyl alcohol in the proportion 1 to 5; solutions of cane sugar in ethyl alcohol, for instance in the ratio of 1 to 80; solutions of grape sugar in ethyl alcohol. for instance in the proportion 1 to 50; solutions of monopol oil in ethyl alcohol, for example in the ratio 1 to 3. These solutions are preferably employed at raised temperatures up to the boiling points. The artificial silk, carried for example on spools or bobbins or in the form of skeins, is packed in a closed apparatus and the desulphurizing agent is pumped through the latter, or the type of apparatus known as the Obermeyer apparatus in which the spools or the like are stuck on perforated arms through which the desulphurizing solution is pumped may be used. After desulphurizing, the silk is freed from the residual desulphurizing liquor by washing it with an organic solvent for the desulphurizing agent and may then be dried directly by forcing hot air through it. The wet and dry extensibility of artificial silk desulphurized in this manner exceeds by about 50 per ceut that of silk desulphurized by aqueous solutions. Specification 293,833 is referred to.
Patent GB-800966-A (GB)
Title: Apparatus for melting metals, more especially titanium, in an arc with a self-consuming electrode
IPC: F27D11/08
Filed: 1956-07-05
Abstract: 800,966. Electric arc furnaces. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. July 5, 1956 [July 6, 1955. No. 20881/56. Class 39(3) Apparatus for melting metals, e.g. titanium and zirconium, in an arc with a self consuming electrode comprises a melting vessel which is at least partially lined with the material to be melted, the lining being so arranged as to leave a bowl-shaped or hemispherical space in the middle, and a movable electrode which is rotatable about its longitudinal axis and has a depending head projecting at least partially into the said space. As shown, apparatus for melting titanium comprises a melting vessel 1, e.g. of steel, carrying a lining 2 of scrap titanium in the middle of which is a melting space or bowl 3, current to the lining being supplied through a titanium rod 4. Located inside the bowl 3 is a shaped titanium electrode head 5 which is connected by means of a titanium carrier element 6 to an electrode holder 7 made of metal having good electrical conductivity e.g. copper, and preferably cooled. The complete electrode rotates both about its own axis, as indicated by arrow a and inside the melting bowl, at a radius which may be varied according to the size of the bowl, about the longitudinal axis of the complete apparatus, as indicated by the arrow b. The vessel 1 is carried by a piston 8 so that it may be raised or lowered hydraulically, and it is mounted on the piston by means of a lockable hinge 10 so that it can be tilted to discharge its contents.
Patent GB-148992-A (GB)
Title: Improvements in electromagnetic wave receiving arrangements
IPC: H04L27/06
Filed: 1920-07-12
Abstract: 148,992. Ges. f³r Drahtlose Telegraphie. Feb. 8, 1916, [Convention date]. Thermionic detectors and relays. - A direct-current relay is operated by wireless signals by a thermionic valve having a large filament and high anode voltage, the grid potential of which is such that normally no current flows through the plate circuit. Rectified impulses are amplified by the valves 4, 5 in cascade, and led to the strong current valve 9, having a large cathode 10. The grid potential is adjusted so that no appreciable current flows in the plate circuit, in which is located an ordinary direct-current relay 12. On the arrival of a signal impulse, a direct current is released to operate the relay. A condenser 15 is preferably connected in parallel with the relay.
Patent GB-1009063-A (GB)
Title: Electronic circuit
IPC: H03K23/00
Filed: 1962-05-30
Abstract: 1,009,063. Electronic counters. INTERMETALL GESELLSCHAFT FUR METALLURGIE UND ELEKTRONIK. May 30, 1962 [May 31, 1961], No. 20902/62. Heading G4A. [Also in Division H3] Each stage of a cascade counter comprises a 4-layer transistor diode with characteristics approximating to those of a thyratron with fixed grid potential. The diode represents 0 when it is on and 1 when it is off. With S 1  on the application of an earth input pulse at E turns off S 1  over the path D 1 , C 1 . The next input pulse finds D 1  blocked but passes over D 2 , C 2  to turn on S 1  again. In turning on, S 1  applies a pulse to the next stage. In the 4-stage system shown a delay circuit R 5 , C 3  precedes the turning on of the last stage which then switches off the second and third stage. A decimal count is thus achieved in an excess-6 binary code. A 10-stage cascade counter can effect a count of 1000 in an excess- 24 code in similar manner.