baber/WOPTO huggingface dataset:
Patent GB-1193586-A (GB)
Title: Process of Preparing a Mixture of a Lactam and an Alkali Compound of this Lactam
IPC: B01J19/18
Filed: 1968-04-05
Abstract: 1,193,586. A mixture of a lactam and an alkali metal compound thereof. STAMICARBON N.V. 5 April, 1968 [5 April, 1967], No. 16476/68. Heading C2C. [Also in Division C3] A mixture of a lactam and an alkali metal compound thereof is prepared by a continuous process which comprises continuously introducing an alkali metal hydroxide and a molten lactam into a first reaction vessel 17 (not shown) and therein reacting the said hydroxide and lactam by heating under reduced pressure, passing the vapour of water present in the said first reaction vessel through a condenser 21 (not shown) under conditions such that the lactam present in the vapour condenses and flows back into the reaction vessel and substantially all of the water vapour is removed overhead therefrom and continuously passing an amount of the reaction mixture from the said first reaction vessel into a second reaction vessel 17<SP>1</SP> (not shown) at such a rate that a substantially constant liquid level is maintained in the said first reaction vessel and passing water vapour from the said second reaction vessel through a condenser 21<SP>1</SP> (not shown) under conditions such that the lactam present in the vapour condenses and flows back into the said second reaction vessel, and all or substantially all of the water vapour is removed overhead therefrom and continuously discharging reaction mixture from the said second reaction vessel at such a rate that a substantially constant liquid level is maintained in the said second reaction vessel. The second reaction vessel may be followed by a third or by a storage tank 27 (not shown). The alkali metal hydroxide may be supplied as an aqueous solution. The starting product may be any of various #-lactams, or mixtures thereof.
Patent GB-1209313-A (GB)
Title: HIGH VOLTAGE n-p-n TRANSISTORS
Inventor: HUGHES THOMAS LAWRENCE
IPC: H01L21/22
Filed: 1967-04-11
Abstract: 1,209,313. Transistors. JOSEPH LUCAS (INDUSTRIES) Ltd. 1 March, 1968 [11 April, 1967], No. 16543/67. Heading H1K. A high voltage transistor is produced by the steps shown in the flow sheet, which comprise: 1. starting with a wafer of N-type silicon which forms the collector region; 2. diffusing-in phosphorus to form N+ type regions; 3. removing the upper N+ type region by etching or lapping; 4. diffusing-in aluminium from the vapour to produce a P-type surface region; 5. removing part of the P-type region by photomasking and etching; 6. heating in an oxidizing atmosphere to redistribute the aluminium so that the maximum concentration is below the surface and the gradient is shallow at the collector junction, to form the base region; 7. diffusing-in boron to form a P+ type region; 8. removing the P+ type region from the N- type wafer and heating in wet oxygen to form a glass layer; 9. forming a window in the glass layer and diffusing phosphorus through the P+ type region into the P-type region to form the emitter region; 10. (not shown) heating in wet oxygen to further redistribute the impurities; 11. (not shown) applying emitter, base and collector contacts, all to the top surface if desired.
Patent GB-434752-A (GB)
Title: An improvements in or relating to amusement apparatus
IPC: A63G1/42
Filed: 1934-06-05
Abstract: 434,752. Amusement apparatus. HIRST & SONS, Ltd., B., and HIRST, C., Weymouth Street, Halifax, Yorkshire. June 5, 1934, No. 16674. [Class 132 (i)] In a roundabout having a passenger seat in the form of a ring a suspended from a central pillar f so as to rotate and swing thereon, the supporting rods b are screwed into a flange or lugs c<1> on the cap c universally mounted at d on the pillar, and at their lower ends the rods b are screwed into, pivoted, or otherwise secured to base plates g bolted at h to the ring seat a. The rods may be secured to the lower end of the cap c by an apertured flange or lugs c<2>, or by U-shaped members, the legs of which pass through the cap and are bolted thereto.
Patent GB-439426-A (GB)
Title: Improvements in or relating to internal combustion engines of the liquid-fuel injection compression-ignition type
Inventor: RICARDO
IPC: F02B19/00
Filed: 1934-06-06
Abstract: 439,426. Oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. June 6, 1934, Nos. 16817/34 and 13778/35. [Class 7 (iii)] At the end of the compression stroke of a compression-ignition engine in which part of the charge is forced through a tangential passage D in a plug C into a chamber B, not more than 50 per cent of the total combustion space is formed by the chamber B and the passage D, while the remainder is formed by the clearance between the piston G and the cylinder head A, which clearance is increased locally by a recess H adjacent the end of the passage D. The chamber B, which may be of spherical or cylindrical form, is located either in the cylinder head, Fig. 1, or in the cylinder casting, Fig. 7, whilst the recess is formed either in the cylinder head or in the piston. The recess may be formed as shown in Fig. 6, by a flat-bottomed triangular depression which is bulged outwardly adjacent the passage D, or as shown by the dotted line Hx as half an ovoid along the minor axis of which the gases issuing from the passage are directed. The recess H may be shaped so that the gases issuing from the passage D will be split into two portions, to each of which a rotary motion is imparted. As shown in Figs. 3 and 7, the gases enter a part-spherical depression H<4> laterally adjacent two part-spherical depressions H<1>, H<2>, which may be situated symmetrically, and are split into two streams by a ridge H<3> along which the depressions H<1>, H<2> merge. In the modified construction shown in Fig. 10, the gases enter one end of a trench H' and are split into two streams which rotate in flat-bottomed circular depressions H<5> H<6>, which may be symmetrically situated, by a rib H<8> formed where the depressions merge. The bottom of the trench H' may slope downwards towards the depressions H<5>, H<6>, which lie opposite the inlet and exhaust ports. To facilitate starting, the whole or a portion of the fuel is temporarily injected into that part of the combustion space lying within the cylinder. Specification 371,025 is referred to.
Patent GB-110819-A (GB)
Title: Extraction of Cyanides from Ammoniacal Liqour.
Inventor: BAKER HARRY
IPC: C01C3/08
Filed: 1916-11-25
Abstract: 110,819. Baker, H. Nov. 25, 1916. Aluminium, nickel, silver, tin, and zinc cyanides.-Ammoniacal liquor is boiled with an oxide hydrate or carbonate of an alkali or alkaline earth to recover ammonia in the usual way, and the residual liquor is then boiled with the addition of a salt or salts of aluminium, nickel, silver, tin, or, according to the Provisional Specification, zinc, to precipitate the corresponding cyanides.
Patent GB-374275-A (GB)
Title: Improvements in light projectors
IPC: F21S8/10
Filed: 1931-06-10
Abstract: 374,275. Light projectors. PIERRON J., 109, Grande Rue, Vaux-sur-seine, France, June 10, 1931, No. 16936. Convention date. July 30, 1930. [Classes 75 (ii) and 75 (iv).] Lantern fronts.-The front of a light projector is fitted with two right prisms C, D with their hypotenuse surfaces b, f together, the prism D having a parallelopiped elongation b .. e enclosed in an opaque sheath M which may be formed by part of the casing G. The angles of the prisms are such that extraneous rays of light emanating from points above a surface S, S<1> are absorbed by the sheath M and prevented from entering the projector. The projector may comprise an electric lamp H having its filament coinciding with the centre of a semispherical reflector B and the first focus F<1> of a semi-ellipsoidal reflector A. The surface a, b of the prism C may be made lenticular or otherwise formed to vary the light distribution, for example it mav be made concave so that the rays of light are brought to a focus F<3> instead of to the second focus F<2> of the reflector A.
Patent GB-1328936-A (GB)
Title: Float for a level gauge
IPC: G01F23/76
Filed: 1972-04-12
Abstract: 1328936 Liquid level control floats ETS A JOHNSON & CIE 12 April 1972 [29 April 1971] 16954/72 Heading G1H A float 3, consisting of two hollow spheres 14, 15 connected by a tube 16, is made of steel, stainless steel, titanium or non-ferrous alloy, such as a copper and nickel, and is filled with an inert or neutral gas, such as argon under a pressure of between 10 to 100 bars, to withstand a pressure of up to 200 bars at temperatures of 350‹C (Celsius).
Patent GB-1194284-A (GB)
Title: An Instrument for Measuring and Transposing Angles.
Inventor: JOHANSSON BENGT VILGOT
IPC: G01C21/20
Filed: 1968-04-09
Abstract: 1,194,284. Navigational plotting instruments. B.V. JOHANSSON. April 9, 1968 [April 19, 1967], No. 16966/68. Headings G1F and G1X. A position finding instrument for determining the angle between sighting lines to observed objects comprises at least two and preferably three arms 1, 3, 5 relatively pivotable about a hollow bush 13, the arms 3, 5 being provided with a plurality of sighting line markings in the form of ribs 87, and the arm 1 having spaced sights 83, 85, so that after sighting on the desired objects, the instrument may be placed on a map, and the edges 89 of the arms 35 and a line 91 marked on the arm 1, which is transparent, may be used to locate the point of intersection 7 of these lines and thus of the point at which the observation was carried out. The arms 3, 5 are both formed of spaced flat members which close over the arm 1. The arm 3 is connected by link 41 to a slide 33 with a pointer 97 which slides over a scale on the central arm 1 to indicate the angle between the line 91 and the ribs 87 on the arm 3. A screw 39 is provided to lock the slide 33 in its adjusted position. The arm 3 is similarly connected by a link 49 to a slide 47 moving over a further scale on the arm 1, the relative pivotal movement of the arms, 1, 3 in this case being effected by rotation of a knob 59 connected to a worm-wheel 55 meshing with a gear 51 on the link 49. The worm-wheel 55 is carried by a bracket 63 which may be moved manually to disengage the worm-wheel 55 from the gear 51 so as to enable course adjustment of the arm 3. A spring 75 normally holds the gears in engagement and enables fine adjustment during sighting. The instrument is described as being of use in determining position by using the centre arm 1 and one of the side arms to sight on two known points, the bearing of one of which is also known, and alternatively by using all three arms to sight on three known points.
Patent GB-902506-A (GB)
Title: Improvements relating to chucks
IPC: B23F23/06
Filed: 1960-05-13
Abstract: 902,506. Chucks and mandrels. GLEASON WORKS. May 13, 1960 [May 20, 1959], No. 16973/60. Class 83 (3). A chuck comprises a body 10, Fig. 1, and a collet 23 supported thereby for axial movement, the collet having a split tubular portion with axially-spaced sets 28, 29 of work-engaging sections, the splits extending longitudinally and separating the sections of each set from each other, and also separating from each other parts 33 which interconnect longitudinallyaligned sections of the spaced sets, these parts being bowed in an axial plane to permit limited relative axial movement between the sets. The body has surfaces 19, 20 engaging the sets for deflecting them radially inwardly to grip a workpiece P, and spaced so that set 28 is deflected before set 29. The collet is movable by a draw-rod 25 which may be hydraulicallyactuated. In a modification, a mandrel comprises a body 40, Fig. 4, with spaced surfaces 42, 43 engaging sets 48, 49 of collet 44 for deflecting them radially outwardly to grip a workpiece P<SP>1</SP>. Set 49 is deflected before set 48 and the collet is movable by a drawroof 47.
Patent GB-130228-A (GB)
Title: An Improved Sparking Plug.
Inventor: COOKE HOWARD SEYMOUR
IPC: H01T13/34
Filed: 1918-10-18
Abstract: 130,228. Cooke, H. S. Oct. 18, 1918. Sparking - plugs. - Stepped bearing surfaces 12, 15 are formed on the casing and mica insulator. An internal nut 14 secures the mica insulation in position on the electrode, and is itself engaged by a nut 19 which bears on the outer end of the insulating member 17 seated in a recess 18 in the casing, thus drawing together the surfaces 12, 15.
Patent GB-1069412-A (GB)
Title: Improvements in and relating to methods of manufacturing designs comprising a vacuum evaporation deposition step
Inventor: PICK ULRICH
IPC: C23C14/04
Filed: 1964-04-24
Abstract: A design is formed by vacuum depositing a film (less than 10-5 cm.) of e.g. lead or tin on a glass substrate, cutting a design on the film, and taking a photographic copy of the design.  The copy is contact printed, and using a further plate having opaque dots Fig. 5 (not shown) a combined design Fig. 7 (not shown) is formed.  This design is used to form a superconducting Crowe cell matrix by depositing a tin film on mica, covering with a photo-resist, exposing it under the design, and removing the unwanted material by sandblasting. Lead conductors may be vacuum deposited on the reverse side of the mica, and on a silicon monoxide layer covering the tin.
Patent GB-973361-A (GB)
Title: Pyrazolo-pyrimidines and process for their manufacture
IPC: C07D487/04
Filed: 1961-05-10
Abstract: The invention comprises a compound of the general formula <FORM:0973361/C1/1> in which R1 represents a hydrogen atom or an alkyl, hydroxy-alkyl, oxa-alkyl or cyclo-alkyl group or an at most binuclear aryl group or a pyridyl group, R3 represents a hydrogen atom or a lower alkyl group, R5 represents an alkyl or tertiary aminoalkyl group, and R6 represents an alkyl or aralkyl group, a physiologically tolerable quaternary ammonium compound thereof, and a process for the manufacture thereof wherein the tautomerizable hydrogen atom in a 1-R1-3-R3-4-OXO-4, 5-dihydro-6-R6-pyrazolo [3, 4-d] pyrimidine is exchanged for the residue R5 by reaction with a reactive ester of an alcohol of the formula R5-OH. R1 and R6 may be further substituted by halogen, alkoxy or trifluoromethyl. Pharmaceutical compositions having coronary dilating activity and containing the above compounds are employed enterally or parenterally in tablets, dragees, suspensions or emulsions.  Specifications 937,722, 937,723 and 937,724 are referred to.
Patent GB-570348-A (GB)
Title: Improvements in or relating to the production of copolymers of vinyl chloride and fumaric esters
IPC: C08K5/1515
Filed: 1943-10-20
Abstract: A plastic composition comprises a vinyl chloride-fumaric acid p ester copolymer and from 0.1 to 5 per cent of a 1,2-epoxy compound. The copolymer and the epoxy compound may be milled together, or the copolymer may be dissolved in a solvent such as cyclohexanone, methyl ethyl ketone-xylene, methyl isobutylketone-xylene, acetone-toluene, acetone or tetrahydrofurane and the epoxy compound added, or the mixture produced in other known ways.  1,2-epoxy compounds specified are ethylene oxide, ethyl-, phenyl-, or benzyl-, ethylene oxides, propylene oxide, phenoxy-, parachloro-, henoxy-, phenylphenoxy-, orthocresoxy-, paratertiaryamylphenoxy-, xylenoxy-, hexahydrophenoxy-, or naphthoxy-, propylene oxides, phenoxy butyleneoxide, benzalacetophenone oxide, epichlorohydrin, glycidol, diglycide ethers and esters of epoxy propionic acid. Copolymers specified are those of vinyl chloride with the following fumaric acid esters:-dimethyl, diethyl, di-n-butyl-, di-isobutyl, dicyclohexyl, dibenzyl, or di(chloroethyl), or the esters of fumaric acid with methyl, ethyl or butyl glycol ethers. Copolymers of vinyl chloride, fumaric acid esters and other monomers are also included. Plasticizers, fillers, metal deactivators, pigments, dyes, softeners, natural resins or other synthetic resins may also be incorporated in the compositions.  In examples compositions of vinyl chloride-diethyl fumarate with phenoxy propylene oxide, phenylethylene oxide, #s-cresoxy propylene oxide, p-tertiaryamylphenoxy-propylene oxide, xylenoxypropylene oxide and benzalacetophenone oxide and of vinyl chloride-dimethyl fumarate with ethylene oxide and propylene oxide are given.  Specification 570,331 is referred to.
Patent GB-460825-A (GB)
Title: Improvements in or relating to cores for tuning or the like coils
IPC: H01F17/04
Filed: 1936-06-22
Abstract: 460,825. Inductances; bobbins or spools. BOSCH AKT.-GES., R. June 22, 1936, No. 17256. Convention date, June 22, 1935. [Class 38 (ii)] [Also in Group IX] Cores for tuning and like coils comprise several parts a, a<1>, a<11 >held together by an insulating body moulded externally thereon. The insulating body may be sprayed on to the core parts which may be provided with recesses into which projections b on the insulating body fit. Alternatively the core a may be entirely surrounded by the insulating body g which thus holds the core parts together. The insulating sheath g and the hollow core part a may be provided with an internal screw thread h so that a tuning screw may be screwed in and out the core. Holes i for the coil holding screws may be provided in extensions of the insulating body.
Patent GB-1009715-A (GB)
Title: Copy-sheets and methods of using them
IPC: G03C1/61
Filed: 1962-05-04
Abstract: 1,009,715. Heat-and light-sensitive materials. MINNESOTA MINING & MANUFACTURING CO. May 4, 1962 [May 4, 1961], No. 17263/62. Heading G2C. A copy sheet comprises a support carrying one or more layers containing a diazonium compound, an azo coupler and zinc oxide and a polar polymeric binder with at least the polar binder and the diazo compound being in the same layer. This sheet may be imagewise exposed to light and developed by heat or imagewise exposed to heat and then fixed by light. Preferably the sine oxide is in a water-resistant polymeric binder as one layer and the diozonium compound and the coupler are in the polar binder as the other layer on the support. The sheet may contain saccharine as an acid stabilizer. Specified polar binders are polyvinyl acetate, cellulose acetate and polyamides.
Patent GB-637719-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines
IPC: F02G1/047
Filed: 1946-06-07
Abstract: 637,719. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 7,1946, No. 17303. Convention date, June 11, 1945. [Class 7 (i)] A regulating device controlling the temperature of the heater or heaters is responsive to thermal expansion of the -circumference of the heater or heaters which takes place during operation of the engine. As shown a valve 14 in the fuel supply pipe 2 to the heater 1 is controlled by levers 5, 6 operated by the expansion of the heater. When the heater expands points 3, 4 move apart and pivot the levers about points 7, 8 against the action of a spring 9. In a modification, a spring strip is located between two heaters so that the expansion of the heaters causes the strip to bend and the movement of its centre point is used to actuate a fuel valve.
Patent GB-402005-A (GB)
Title: Sewing mechanism for shoe stitchers
IPC: D05B85/00
Filed: 1933-06-17
Abstract: 402,005. Sewing-machines. ROWLEY, H. E. G., c/o Browne & Co., 9, Warwick Court, Gray's Inn, London.-(Landis Machine Co. ; 201, Gano Avenue, St. Louis, Missouri, U.S.A.) June 17,1933, No. 17322. [Class 112.] Lock stitching by shuttles.-In a shoestitching machine of the McKay type, the shuttle is recessed to permit the needle to reciprocate near to the axis of the shuttle to permit stitching through the upper and sole at a point nearer to the breast of the heel than usually possible. The shuttle 11 is oscillated in a holder 12 by a cam on the main shaft 3. This cam moves a lever 14 having a toothed section 15 meshing with a pinion 16 rigid with a gear 17 which engages teeth on the shuttle. The shuttle is hollow and receives a bobbin case 19 and bobbin 20 carrying thread T. The needle 6 at all times works in the groove 21 round the periphery of the shuttle. This groove is enlarged as at 22, Fig. 6, to accommodate the needle bar 7 at the lowermost limit of the needle stroke. The wall of the bobbin case is also grooved for this. This permits the needle to reciprocate at the minimum distance from the shuttle axis. As the needle ascends, its barb draws the horn thread S upwards. The strands of the loop are separated by the point 23 of a lever 24 operated by a link 26 and bell crank 27 controlled by a cam 28 on the shaft 3. The needle, separator and shuttle are timed so that as the needle bar 7 is raised above the position shown in Fig. 2, the point 23 moves inwardly to separate the loop strands of the thread S entering the groove 21, Fig. 7, whereupon the spaced points 29 of the shuttle enter the loop on opposite sides of the needle. The shuttle continues to rotate and the recess 30 therein engages the loop and carries off the needle barb and round the bobbin case. Feed by awl.-The feed awl 150 is carried in an arm 152 actuated by a lever 46, link 49, arm 37, 34, roller 35 and feed cam 36, Fig. 1.
Patent GB-832389-A (GB)
Title: Improvements relating to railway vehicle weight measuring devices
IPC: B61L17/00
Filed: 1957-05-31
Abstract: 832,389. Electric indicating systems. WESTINGHOUSE AIR BRAKE CO. May 31, 1957 [June 1,1956], No. 17325/57. Addition to.797,161. Class 40 (1). The weight of a railway vehicle is measured by means of a rail 1 (Fig. 1), comprising an upper part 2, web 3 and base 4, in which the web is slotted to house two resilient members 12, 13 carrying strain gauges to detect the deflection of the upper part of the rail into the slot. The member 12 comprises a block of rubber, secured by a bonded metal base 14 to the web 3, and mounted to engage the upper surface of the slot 6, in which is embedded two vertical resistance strain gauges. The member 13 comprises a block of rubber 22 sandwiched between a bonded metal base 18, by which it is secured to the web 3, and a pressure block 23 engaging the upper surface of the slot 6, in which is embedded two mutually perpendicular horizontal strain gauges. Hence when the wheel 10 of a vehicle is over the slot 6, the strain gauges in member 12 are placed in compression, and those in member 13 are placed in tension. The resistors are connected in a bridge circuit whose unbalance current may be used to operate control circuits in accordance with the measured weight of the vehicle. In another embodiment (Fig. 5), only one resilient member 30 is used, having one vertical strain gauge 36 distorted by the weight of the vehicle, while a further strain gauge resistor 37 is embedded horizontally in the rubber member 30 in a recess 34 in the base 31 so that it is not affected by distortion of the upper part 2, and is connected in a bridge circuit to compensate for temperature variations. Specification 787,548 is referred to.
Patent GB-267077-A (GB)
Title: A supporting device for telephone apparatus
IPC: H04M1/04
Filed: 1926-07-12
Abstract: 267,077. Brevex Soc. Anon. March 4, 1926, [Convention date]. Addition to 255,854. Brackets, adjusting.-A supporting-device for telephones, shown in Fig. 2, comprises a jointed member, the upper portion 8 of which has a longitudinal slot 9 in which pivots a bolt carrying an arm 13 for supporting the telephone. The supporting-arm is connected to the member 8 by an extension arm 8<1> pivotally connected at one end to the supporting-arm and having a longitudinal slot 9<1> in its opposite end movable relatively to the slot 9. The pivots are locked by hand nuts 16, convex washers being interposed between the nuts and pivoted members. According to a modification, shown in Fig. 3, a bolt in the lower portion 15 of the jointed member engages in a slot in the upper portion on which the supporting- arm is pivotally mounted.