baber/WOPTO huggingface dataset:
Patent GB-249442-A (GB)
Title: Improvements in and relating to headlights
IPC: B60Q1/14
Filed: 1925-11-20
Abstract: 249,442. Neave, G. Nov. 20, 1925. Reflectors; mounting reflectors on lamp casings; adjusting reflectors from a distance.-In a vehicle lamp the whole or a portion of the reflector is formed of a plurality of segments 14 mounted on spindles 15 which work in one or more hearings 16 and are connected together by universal joints so that, when one spindle is turned bv means of a Bowden-wire attached to a lug 21, all the sectors are simultaneously turned parallel with the axis of the lamp and so cease to function, the sectors being returned to their normal reflecting position by means of a number of springs 20. The sectors may be straight or curbed to form a parabolic or other shaped reflector, and they may have abutting or slightly overlopping edges.
Patent GB-1468689-A (GB)
Title: Shell moulding machine for foundry castings
IPC: B22C15/24
Filed: 1974-07-02
Abstract: 1468689 Foundry moulding MANIWA PRODUCTS CO Ltd 2 July 1974 [3 July 1973] 29329/74 Heading B3G A shell moulding machine includes a blow head assembly 18, 19 on a fixed frame 30, a vice assembly rotatably supported on the frame below the blow head assembly outlet, a pair of core box halves 1, 2 mounted in the vice assembly, the half 1 being pivotable from a position la adjacent the half 2 to a position external of the frame as shown for the ejection of moulded articles from the pivoted half. The latter is mounted on a plate 11 pivoted at 11<SP>1</SP> to a rotary drum 4 mounted on rollers 16 and rotated by means 36-39. Guide rods 6 extend from the drum and carry sleeves 7 supporting a plate 8 secured to the box half 2. The box halves are clamped together by a pistoncylinder means 34, 34<SP>1</SP> on the rods 6, and locked by rods 33<SP>1</SP> extending laterally into receptors 3311 on the drum. The blow head is mounted on a carriage 17 movable by piston-cylinder means 26 from a position below a hopper 25 for filling the head with a resin coated sand mix to a position above the closed box halves for transferring the sand thereto, which is heat set. The rotary assembly is then rotated to invert the box halves and remove excess and which is received at 40. With the box half 1 moved to the exterior of the frame by a piston-cylinder means 3, the moulded articles are ejected by a plate 9 and received by a conveyer 12. An adjustable scraper moves over the box halves after each moulding operation.
Patent GB-1134360-A (GB)
Title: Improvements in spark gaps
IPC: H01T1/02
Filed: 1967-06-26
Abstract: 1,134,360. Protective arrangements. OHIO BRASS CO. 26 June, 1967 [20 March, 1967], No. 29346/67. Heading H2H. A spark gap for lightning arresters and the like of the type where an arc is produced between two electrodes which arc is then caused to take an elongated path by means of a magnetic coil comprises porous ceramic plates 18, 19, 20 having affixed thereto electrodes 23, 24 and 25, 26 so as to form two spark gaps in series, one situated in a chamber 21, the other in a similar chamber 22. When an overvoltage exists spark gaps 23, 24; 25, 26 break down and, considering gap 25, 26, an are is formed in an arc recess. Under the influence of the magnetic field produced by a coil the arc moves radially outward along the electrode 25, 26, through an entrance chamber 47 into an arc elongation chamber 48. A continuing magnetic field then drives the arc into an arc outer chamber 49 where it extinguishes. The walls 50, 51 of the arc outer chamber 49 may converge towards or be parallel to one another and furthermore be placed at an angle to or be parallel to the arc elongation chamber 48. The ceramic plates 18, 19, 20 are made to be transversely permeable so as to improve the operation of the spark gaps. The ridges 34, 35 define the limits of elongation of the arc and, if desired, further ridges may be placed intermediate these two ridges.
Patent GB-1313191-A (GB)
Title: Ironmodified bismuth phosphomolybdate catalyst
IPC: B01J23/88
Filed: 1970-06-17
Abstract: 1313191 Iron-containing bismuth phosphomolybdate catalysts STANDARD OIL CO 17 June 1970 [24 Sept 1969] 29366/70 Heading B1E Iron-containing carrier-supported bismuth phosphomolybdate catalyst is prepared by a process which comprises the sequential steps of comminuting carrier-supported bismuth phosphomolybdate material with sufficient water to form a paste, adding an aqueous solution of ammonium heptamolybdate to the paste to form a slurry, adding the slurry to a dispersion of silica in water acidified with phosphoric acid, -dispersing an iron salt in acid solution in the resulting slurry to form a homogeneous mixture, drying the mixture and calcining the resulting dried product at a temperature below the inactivation temperature of the resulting iron-containing catalyst. As exemplified, comminuting is effected by ball-milling, the iron salt used is ferric nitrate nonahydrate acidified with nitric acid, drying is effected by spray drying to form a microspheroidal product and calcining is effected at a temperature of 1260F. The carrier-supported bismuth phosphomolybdate material may be fresh, used, spent or depleted catalyst which is intended for use, or has been used, in the annoxidation of an α,#-monoolefin, for example propylene or isobutylene, to the corresponding unsaturated nitrile, for example acrylonitrile or methacrylonitrile.
Patent GB-1401073-A (GB)
Title: Internal combustion engine having a regulating arrangement
IPC: F02C9/56
Filed: 1972-06-22
Abstract: 1401073 Gas turbine plant MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 22 June 1972 [25 June 1971] 29370/72 Heading F1G [Also in Division F2] An engine comprises a first governor for controlling the fuel supply to the engine and a second governor for controlling the load on the engine, the two governors being driven at engine speed and, independently of each other, operating to control the fuel supply and the load on the engine over the entire operating range of the engine, the point of intersection of the characteristic curves of the two governors forming the operating level of the engine. In Fig.1 the engine is a gas turbine engine 5 and the first governor 16 which is driven from the engine, controls the position of the valve member 17 and so the area of the fuel metering orifice 18. The governor is loaded by two springs 14, 15, the spring 14 being controlled by an accelerator 12 and by a decelerator 13; the spring 15 is of constant loading. The fuel passes to a combustion section 5a from which gases pass to the turbine 5 which may be coupled through a hydrostatic transmission 11a to drive a motor vehicle. A second governor 20 is provided to control the transmission 11a and acts to control flow of fluid from pump 7 by means of a valve member 21 which controls a metering orifice 22; the fluid passes to one side of the piston of the actuator 10a which acts to control the transmission 11a. A changeover device 9a is provided to permit forward and reverse motion of the vehicle. The engine may alternatively drive an airscrew as shown at Fig.1b, the governor 20 acting to control the pitch of the blades of the airscrew.
Patent GB-1065404-A (GB)
Title: Improvements in compositions for coating and impregnating building materials
IPC: C08L95/00
Filed: 1964-07-20
Abstract: A composition for coating or impregnating building materials and serving for rust and water-proofing comprises a resin curing at atmospheric temperatures, a bitumen emulsion containing 96-98% bitumen, and water.ALSO:Building material is treated with an aqueous emulsion comprising a water-proofing and adhesive resin curing at room temperature (Benybond) and a preservative bitumen (Flintcote). Materials specified are plaster, concrete and brickwork.
Patent GB-927742-A (GB)
Title: Weighing control for liquid handling apparatus
IPC: G01G13/00
Filed: 1961-08-16
Abstract: 927,742. Weighing-apparatus. UNION TANK CAR CO. Aug. 16, 1961 [April 18, 1961], No. 29503/61. Class 143. A tank 12 is supported by its base being welded to a resilient projection 22 from a feed conduit 20 and is so arranged that the greater part of it overhangs one side of the conduit. Flowable material, e.g. sewage, passes through a check valve 54, permitting flow in one direction only, along the conduit 20 and into the tank 12 through an opening 42. The space in the tank above the material is then in communication with the atmosphere through a vertical internal pipe 48 which is an extension of a pipe 44 which passes through the conduit 20 and leads to a valve 56, open to the atmosphere. When the weight of material in the tank is sufficient to tilt it against the resistance of the resilient member 22, switch contacts 38, 30 followed by contacts 40, 32 are closed. An electrical circuit, Fig. 9, is thus completed, energizing a switch relay 66 and a valvecontrol relay 68. The relay 68 moves the valve 56 so that it puts the pipe 48 in communication with a source of compressed air 62, whereby the material is forced out of the tank through a check valve to a discharge conduit. The tank therefore starts to swing back and switch contacts 40, 32 separate, but when the switch relay 66 was energized it closed a switch 70 and established a holding circuit, and the entry of compressed air to the tank therefore continues as it swings back. When the tank is right back the switch contacts 38, 30 separate and the original conditions are restored. In a modification, pneumatic control is used, including a valve 92, Fig. 5, in which a sliding member 90 has a stem 102 on the end of which is a disc 104. The valve 92 is situated so that, when the tank 12 is empty, its side is against the disc 104, the member 90 then being in the position shown in Fig. 5, when the pipe 44 is in communication with the atmosphere through a port 106 and thus the pipe 48 in the tank. As the tank fills it swings away from the disc 104 but the member 90 remains undisturbed until the inner face of a bracket 76, projecting from the tank wall, meets the other side of the disc 104 and moves the member 90 so that the pipe 44 is put into communication with the source of compressed air through a port 108, resulting in discharge of material from the tank as before. A passage 110 from the port 108 allows the final movement of the member 90 to be aided by air pressure. As the empty tank swings back it does not restore the position of the member 90 until the bracket 76 has travelled through the full return distance.
Patent GB-229400-A (GB)
Title: Improvements relating to tennis courts and the like
IPC: E01C13/06
Filed: 1923-11-22
Abstract: 229,400. Lorentzen, W. H. C., and Hollis, C. W. Nov. 22,1923. Continuous flooring.-Material for the surfaces of hard tennis courts, applicable also for garden paths and floors of summer houses, shelters and verandahs, comprises heavy mineral dust such as granite dust, a dryer such as oxide of lead, and an emulsion of oil in water, with or without suitable colour. In an example, the proportions given are 2 cwts. of granite dust, 2 ozs. oxide of lead and pint of boiled linseed oil emulsified in 2 pints of water.
Patent GB-1359735-A (GB)
Title: Grab for loose materials
IPC: E02F3/47
Filed: 1971-06-23
Abstract: 1359735 Grab buckets PEINER MASCHINEN-UND SCHRAUBENWERKE AG 23 June 1971 [23 June 1970] 29517/71 Heading B8H A grab for loose material comprises two grab shells 1a, 1b which move towards and away from each other about bearings 2a, 2b mounted on an operating head 3 by means of a cylinder 10, a flap being provided in the region of the upper, outer marginal zone of each grab base 14a, 14b, such that in the position shown in Fig. 1a the flaps form an extension (11a) of the grab bases so that more material (indicated by the hatched area 15a) can be held by the grab than when the flaps are hinged upwardly (11b) as in Fig. 1b leaving an opening 16 adjacent each grab base.
Patent GB-1059490-A (GB)
Title: Polymerisation of episulphides
IPC: C08G75/08
Filed: 1963-07-25
Abstract: The invention comprises copolymers derived from a mixture of monomeric episulphides at least one of which contains at least 4 carbon atoms and is free from ethylenic unsaturation; and a general process for polymerizing one or more episulphides using at least one metal carbonate catalyst comprising Zn, Mn, Cd, Pb, Co or Ni carbonate.  Specified monomers are ethylene, propylene, 1,2-butylene, 2,3-butylene and styrene sulphides and allyl thioglycidyl ether. Polymerization can be effected in the presence of an inert solvent and under normal or autogenous pressure.  It is preferred to use 1-5% by weight catalyst and operate at 80 DEG  C. Zinc carbonate is the preferred catalyst. Polyethylene episulphides obtained by the present process are crystalline solids, polypropylene episulphides are elastomers and copolymers of ethylene and propylene sulphides are extrudable materials.  Copolymers of propylene sulphide and allythioglycidyl ether can be cured by known techniques.  Examples relate to the preparation of polyethylene sulphide and copolymers of ethylene and propylene sulphides.
Patent GB-1161221-A (GB)
Title: Prilling.
Inventor: HARRIS GORDON JOHN
IPC: B01J2/04
Filed: 1966-07-01
Abstract: 1,161,221. Prilling and coating. FISONS FERTILIZERS Ltd. 1 Dec., 1966 [1 July, 1966], No. 29560/66. Headings C1A and C1B. A granular fertilizer material is coated by allowing droplets of molten fertilizer material to fall through a cooling tower and while in a fluid state passing the droplets through a dust-bearing zone in the cooling tower, the dust in the dust-bearing zone having been mixed with an agent to modify the amount of dust picked up by the granules. The granular material may contain ammonium nitrate ammonium sulphate nitrate, an ammonium phosphate, potassium nitrate, a potassium phosphate, sodium nitrate, potassium chloride, or urea, alone or mixed together or with other materials. The mixture of dusts contains talc or kaolin with one or more of montmorillonite altapulgite, magnesium oxide or magnesium carbonate and may also contain a surfacemodifying agent such as salts of long chain fatty acids, sulphonates, amides of long chain fatty acids, calcium stearate and fatty acid alkanolamine compound. In the examples, molten urea and ammonium nitrate was dropped down a column so that they formed drops, and these were contacted with a mixture of talc and fuller's earth fluidized by air to a dust content of 0À05-0À2 1b. dust per cubic foot of air. The fluidizing air flow was countercurrent to the flow of the molten substance, and the granules picked up up to 14% of dust; the amount depending on the composition of the dust and of the granular material. The granules prepared by this process have better non-caking properties than the compounds alone.
Patent GB-707646-A (GB)
Title: Hydraulic fluids
Inventor: ELLERY ERIC
IPC: C10M173/02
Filed: 1950-12-04
Abstract: Aqueous mixtures useful as hydraulic fluids comprise polyglyceryl monoacrylate and/or polyglyceryl monomethacrylate and preferably also a water miscible alcohol boiling above 100 DEG C., such as ethylene glycol, diethylene glycol, or glycerol.  The mixtures may also contain corrosion inhibitors such as sodium nitrite, sodium benzoate, or triethanolamine phosphate.  The polyglyceryl monoacrylate or monomethacrylate may be prepared either by heating with a dilute mineral acid a polymer of an ester of acrylic or methacrylic acid and 4-methylol dioxolane or a derivative thereof having one or two alkyl and/or aryl substituents in the 2-position, or alternatively the esters of 4-methylol dioxolane referred to above may be hydrolysed with mineral acid whilst in their monomeric form, and after neutralization the glyceryl acrylate or methacrylate thus produced may be polymerized whilst in solution.
Patent GB-669678-A (GB)
Title: Improvements in or relating to the deep-drawing of sheet metal
IPC: B21D24/00
Filed: 1949-11-18
Abstract: 669,678. Cupping. RHODES, C. J. Nov. 18, 1949, No. 29627/49. Class 83 (iv). In a deep-drawing press, the sheet blank is gripped between a draw-ring and a hollow die with a constant pressure whilst it is drawn into the die by a plunger. A ram head 1 carries the die 2 which, in the idle position, is spaced from the drawring 8 to allow the insertion of a blank therebetween, the end of the plunger 9 also being flush with the draw-ring. After a predetermined travel of the head 1 to the left in the Figure, adjustable links 36 pivoted at 35 to the head, ride by means of ramps 47 under stationary rollers 48 to cause dogs 44 thereon to engage recesses 30 in rack bars 25 pivoted at 26 to a slidable plate 12. When the die 2 isspaced from the drawring 8 by the thickness of the blank, the dogs 44 engage shoulders 45 on the bars 25 so that the ring and die travel together at a constant distance apart. As soon as the rack-bars 25 begin to move, they rotate pinions 18 engaging a rack 14 on the plunger 9, which is thereby forced into the die 2 to draw the blank past a die-ring 2c and a reducing-ring 2d. On reversal of the head 1 the plunger 9 withdraws and the open end of the neck engages a stripper ring 2e in the die, and when the plunger is completely withdrawn the work falls out of a window in the side of the die 2. When the rams 47 ride off the rollers 48, the draw-ring 8 remains stationary to allow the die 2 to recede therefrom and the remainder of the withdrawal of the ram 9 is effected by springs 41. The die 2 may contain more than one reducing-ring 2d.
Patent GB-371764-A (GB)
Title: Improvements in or relating to fluid actuated regulating valves
IPC: G05D16/10
Filed: 1931-10-26
Abstract: 371,764. Dashpots. LEMOINE, P. L., 81, Rue de la Tour, Paris. Oct. 26, 1931, No. 29692. Convention date, Nov. 20, 1930. [Class 108 (iii).] A piston 2 fixed to a fluid - actuated regulating valve 1 and movable in a cylinder 5 is provided on its external cylindrical surface with a helical groove 6 which places the spaces 10, 11 separated by the piston in communication with one another but limits the rate of movement of the piston and valve. The valve 1 is coaxial with the piston 2 and of equal diameter so that outlet pressure acts equally on the upper surface of the valve and the lower surface of the piston. Any sudden changes obtaining in the space 10 are not readily conveyed to the space 11 on account of the inertia of the fluid in the groove 6. In a modification the helical groove 6 is in the surface of the cylinder.
Patent GB-325254-A (GB)
Title: Improvements in and relating to the treatment of nitrocellulose
IPC: C06B23/00
Filed: 1928-10-16
Abstract: 325,254. Imperial Chemical Industries, Ltd., and Fleming, J. S. B. Oct. 16, 1928. Cellulose nitrates.-Nitrocellulose is freed from water and rendered safe for transport by treatment with a mixture of a liquid substantially immiscible with water such as normal butyl alcohol, toluol, or xylol, and a small quantity of liquid substantially miscible with water, such as ethyl alcohol. In an example 1 part by weight of nitrocotton containing 30 per cent water is treated in a centrifuge with a mixture containing 90 per cent normal butyl alcohol and 10 per cent ethyl alcohol of strength 66‹ overproof until the content of water in the nitrocellulose has been reduced to about 1 per cent. Specification 293,291 is referred to.
Patent GB-1017776-A (GB)
Title: Improvements in or relating to electric circuits
Inventor: PERRINS ALLEN ROSS
IPC: H02H9/02
Filed: 1962-08-03
Abstract: 1,017,776. Protective arrangements. SUPERIOR ELECTRIC CO. Aug. 3, 1962, No. 29921/62. Heading H2H. A rate of change of current limiting apparatus comprises a load 14 in which it is desired to limit the rate of change of current, the load being supplied from a single-phase A.C. source 11, 12 by way of two circuits having an inductor 19 or 21 in parallel with a unidirectionally conducting device 20 or 22 respectively, the devices 20, 22 being oppositely poled. In other embodiments a rectifier bridge, which may include controlled silicon rectifiers, is used with a single inductor connected across one diagonal. When the load is supplied from a D.C. source only one inductor in parallel with a unidirectionally conducting device is required.
Patent GB-311664-A (GB)
Title: Improvements in and relating to cellulose ester solutions and plastics
IPC: C08K5/101
Filed: 1927-11-08
Abstract: 311,664. Payman, J. B., Swann, H., Jenkins, W. J., and Imperial Chemical Industries, Ltd. Nov. 8, 1927. Butyl and isobutyl glycollates are prepared by treating glycollic acid with an excess of the corresponding alcohol in the presence of hydrogen chloride or a little sulphuric acid.
Patent GB-270581-A (GB)
Title: Improvements in or relating to devices for adjustably supporting and clamping bodiesor articles
IPC: A61G13/12
Filed: 1926-11-26
Abstract: 270,581. Allen & Hanburys, Ltd., and Baldock, G. R. Nov. 26, 1926. Ball-joints.-A supporting or clamping device for holding various articles in set position, but particularly suitable as an attachment to a surgical operating table for supporting the head of the patient, comprises two arms b on the halves of a diametrically divided spherical bodv a which are adjustable separately or together in a cup-shaped member c and clamped by a screw cap d provided with a handle d<1> or shaped for engagement by a spanner for turning it. The device may be secured to the surgical table by means of a bracket e with a right angled portion slotted at e<1>.
Patent GB-773854-A (GB)
Title: A watch case
IPC: G04B37/08
Filed: 1955-10-20
Abstract: 773,854. Watches. LAISNE, A. A. E. Oct. 20, 1955 [Oct. 21, 1954], No. 29977/55. Class 139. In a watch the glass 4, Fig. 2, is retained against a packing 8 by a screwed ring 6 which screws into the shoulder 5 of the body 1. The edge of the glass has a projection 7 which is aligned with a groove 9 in the seating 2.
Patent GB-882167-A (GB)
Title: Improved dashboard structures
IPC: B60R21/045
Filed: 1960-08-31
Abstract: 882,167. Vehicle dashboards. GENERAL MOTORS CORPORATION. Aug. 31, 1960 [Sept. 9, 1959], No. 29997/60. Class 79(4). A motor vehicle dashboard, shown in cross section, Fig. 2a, comprises a foundation member of metal which may have perforations, open meshes or lattice work, a covering 10x of flexible material, e.g. of leather, imitation leather or "plastic" material and a resilient foamed filling 10#. The dashboard, which is attached to the vehicle bulkhead at 10m, can collapse under impact of the human body and the insert 10i gives sufficient rigidity for the support of electric accessories. Electric wires 20w and electric plugs or a printed circuit, Fig. 4, may be included in the structure during manufacture for establishing connection with the electrical instruments. The dashboard may comprise foamed material portions 10F and 10#, Fig. 3, of different density.
Patent GB-961864-A (GB)
Title: Improvements in or relating to grills for domestic cookers
Inventor: HAY GEOFFREY THOMAS
IPC: F24C15/16
Filed: 1961-08-21
Abstract: 961,864. Grilling stoves. BELLING & CO. Ltd. Nov. 21, 1962 [Aug. 21, 1961], No. 30089/61. Addition to 958,490. Heading F4W. In a cooking stove having three or more radiant plates for heating utensils and two or more spillage trays slidably arranged below them so that at least one spillage tray serves two radiant plates, as described and claimed in the parent Specification, two grill pans are removably supported side by side below a grill extending the full width of the cooker. Supports 3<SP>1</SP> are provided for a full-width grill pan below a two-part grill extending the full width of the cooker, Fig. 1. Channel members 3 secured back-to-back on hangers 2 together with the supports 3<SP>1</SP> enable the full width grill pan to be replaced by two side-by-side pans. The hangers 2 slide on a bar 4 between the two sections of the grill, so that the additional supports 3 can be removed. The two sections of the grill may be individually controlled, so that either section may be used alone.