baber/WOPTO huggingface dataset:
Patent GB-690869-A (GB)
Title: Improvements in and relating to forced or mechanical lubrication systems for steam locomotive engines
IPC: B61C17/08
Filed: 1949-12-21
Abstract: 690,869. Fluid-pressure servomotor-control systems. GULF OIL (GREAT BRITAIN), Ltd., [formerly SILVERTOWN LUBRICANTS Ltd.], BULLOCH, R., and TAYLOR, J. Dec. 18, 1950 [Dec. 21, 1949], No. 32752/49. Class 135 [Also in Group XXXIV] A locomotive lubrication system includes a valve 5 for controlling the supply of steam to atomizing means through which the cylinders and steam chests are supplied with oil and the valve is operated by oil pressure obtained from a pump driven from the engine valve gear or other suitable moving part of the locomotive so that the valve is closed when the locomotive is at rest. Steam is supplied through an inlet 9, and an outlet 10 to the atomizers and an exhaust outlet 13 are provided. Oil under pressure from the pump is supplied through conduit 18 to a chamber 17 containing a spring pressed piston 16. An adjustable leak-off passage 19 is provided which is connected to a conduit 21 returning oil to the pump. When the piston 16 rises it closes an exhaust valve 11 through the intermediary of a rod 23 and spring 25. The stem 14 of the valve 1 1 then opens the spring pressed valve 5 and allows steam to pass to the atomizers. When the piston 16 reaches the top of its stroke, it uncovers a safety port 26. When the locomotive comes to rest, the supply of oil to the piston 16 ceases and under the action of springs 7, 22, valve 5 closes and valve 11 opens, whereby the steam supply to the atomizers is cut off and steam remaining in the engine cylinders or valve chests is free to escape through the exhaust outlet 13. Specification 2885/11, [Class 122 (v)], is referred to.
Patent GB-258457-A (GB)
Title: Improvement in fuel pumps for internal combustion engines
IPC: F02M59/36
Filed: 1925-12-29
Abstract: 258,457. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Dec. 29, 1925. Single-acting piston pumps; regulating delivery by by-passes and by opening suction valves. - In a fuel pump for internal-cornbustion engines, the fuel is returned to the suction side of the pump during the first part of the delivery stroke through a passage 20 in the plunger 19 and a passage 22 in the pump body. When the end of a plunger engages a valve 35, the passage is closed and delivery begins through the delivery valve 43. Towards the end of the delivery stroke, the suction valve 27 is opened by a rod 9 operated by the plunger through a lever 57 mounted on an: eccentric pivot 58 which is adjusted by the engine governor to vary the moment of opening of the suction valve.
Patent GB-726176-A (GB)
Title: Cylinder liner
IPC: F16N31/02
Filed: 1953-11-26
Abstract: 726,176. Cylinder liners. AKT.-GES. FUR UNTERNEHMUNGEN DER EISENUND STAHLINDUSTRIE. Nov. 26, 1953 [Nov. 27, 1952], No. 32852/53. Class 122 (1). A cylinder liner 1 for trunk-piston engines has a catch-ring for collecting lubricant dripping from the liner and the interior of the piston 4. The catch-ring comprises a trough 3, bounded by a lip 17 which enters the piston, for collecting oil from the interior of the piston and a further trough 2 to receive oil from the liner and the outer surface of the piston. Stripping surfaces 5, 6, 7 engage the piston and are connected to the trough 2 by passages 11, 12, 13. The troughs are drained to an air chamber or to atmosphere through pipes 14, 15. In a modification for permitting larger swings of the connecting-rod 16, Fig. 3, the piston is cut away at 18, 19 and the lip 17 extends into these openings. The catch-ring may be attached to the liner by screws.
Patent GB-948765-A (GB)
Title: Improvements in or relating to reinforced tape or sheet material assemblies
Inventor: PARSONS RAYMOND ARTHUR
IPC: C09J7/22
Filed: 1959-09-28
Abstract: 948,765. Laminates. DYMO INDUSTRIES Inc. Aug. 11, 1960 [Sept. 28, 1959], No. 32866/59. Heading B5N. A reinforced tape or sheet, e.g. for making labels or tags, comprises a sheet 11 of a plastics material of the kind which undergoes permanent coldflow deformation at low elongations, and embossment of which produces areas of colour contrasting with the rest of the material, and a laminated backing 12 comprising at least one layer 13 of a pressure-sensitive adhesive adherent to one surface 14 of the sheet 11, and a backing layer 16 which is detachable from the laminated backing 12. The sheet 11 may comprise polyvinyl chloride (P.V.C.) or P.V.C.-polyvinyl acetate copolymers, and may be transparent or coloured, and the layer 16 may be polyethylene or aluminium foil, and may be coloured or metallized. The backing 12 may include one or more fibrous or woven fabric sheets 17 (e.g. a cellulosic or plastics fibre cloth) impregnated with adhesive and secured by pressure-sensitive adhesive 19 to the layer 16. Adhesives mentioned are those prepared from natural rubber, butadienestyrene copolymers, or acrylic, methacrylic or vinyl polymers. Natural and synthetic resin, antioxidants, pigments and plasticizers may be added, e.g. rosin, terpene polymers, pine tar, hydrogenated coumarone-indene resins and methyl ester of hydrogenated rosin. The completed laminate is embossed as indicated to provide a colour contrast between the embossed and unembossed areas. The Provisional Specification describes also additional materials for the sheet 11, namely: steel, nylon, and cellulose acetate-butyrate copolymer, and polyisobutyrene may be used as the adhesive. Specification 866,024 is referred to.
Patent GB-1500029-A (GB)
Title: Process for purifying glycine or d,l-alanine
IPC: C07C227/00
Filed: 1975-08-07
Abstract: 1500029 Purifying glycine and alanine SHOWA DENKO KK 7 Aug 1975 [8 Aug 1974] 33018/75 Heading C2C A process for purifying glycine or D,L-alanine by decomposing cyano impurities contained therein comprises heating an aqueous solution of the glycine or D,L-alanine in the form of an alkali metal salt in the presence of an alkali metal hydroxide, the alkali metal hydroxide being present in an amount sufficient to maintain the pH of the aqueous solution at a value of at least 13À5 and the heating being effected at a temperature of from 100‹ to 180‹ C. for a period of time sufficient to decompose the cyano impurities without causing decomposition of the glycine or D,L-alanine in the form of the alkali metal salt, and the free glycine or D,L-alanine, if required, is then liberated from its alkali metal salt.
Patent GB-1089957-A (GB)
Title: Improvements in and relating to relays
IPC: H01H50/64
Filed: 1965-08-03
Abstract: 1,089,957. Electromagnetic relays. METZENAUER & JUNG G.m.b.H. Aug. 3, 1965 [Aug. 18, 1964; May 11, 1965], No. 33098/65. Heading H2B. The contact sets of an electromagnetic relay may be altered from normally open to normally closed and vice-versa without altering the return force on the armature. In Fig. 4 contact bridges 6, 7 are mounted on pressure springs in a contact carrier 2 and move between the limbs of respecive U-shaped contact members 8, 9 each of the contact members being provided with an insulating cap 13 on one limb or other depending on whether a normally open or normally closed set is required. The caps may be reversed by removing a cover plate 17 which is apertured to enable the condition of the contacts to be seen. In Fig. 7 (not shown), the bridge is movable between the limbs of a pair of U-shaped contact members and has an insulating layer on one side. Reversal of the bridge changes the contact set from normally open to normally closed or vice-versa. In Fig. 6 (not shown) each moving contact comprises two electrically connected contact bridges between which fixed contact members, insulated on one side or the other by insulating plates, are positioned.
Patent GB-1149214-A (GB)
Title: Process for obtaining p-chlorophenyl isocyanate
IPC: C07C265/12
Filed: 1966-07-22
Abstract: 1,149,214. p-Chlorophenyl isocyanate. RUMANIA, MINISTRY OF INDUSTRIAL CHEMICALS. 22 July, 1966 [26 July, 1965], No. 33141/66. Heading C2C. p-Chlorophenyl isocyanate is prepared by reaction of phosgene on a solution of p-chloroaniline in toluene (amine : toluene ratio 1 : 4) at 100-105 C. in a molar ratio of 1À05 moles phosgene per mole of amine in the presence of 0À1-0À2 g. of active carbon epr gram of pchloroaniline used.
Patent GB-1397137-A (GB)
Title: Evacuated tube water hammer pile driving
IPC: E02D7/26
Filed: 1972-07-14
Abstract: 1397137 Pile drivers ORB Inc 14 July 1972 [16 July 1971 30 June 1972] 33175/72 Heading B3H [Also in Division E1] In a method for sinking a pile under a body of water the apparatus comprises a hollow tube 4 connected to the pile 1, the tube 4 being sequentially evacuated by pump 6 and filled with ambient water by opening a valve 8 at the end of the tube 4, the incoming water, when it strikes the lower end of the tube 4 or any residual water therein producing a driving pulse. The tube 4 may be located within a hollow pile with retractable means at the lower end of the tube for engaging the pile, Figs. 2, 3 (not shown). In another arrangement, Fig. 4 (not shown), the hollow pile itself constitutes the tube 4. In such cases the water may be removed from within the pile by releasing a quantity of steam from a tube extending from a steam generator at the water surface into the pile, the pressure pulse acting on a pile tip (122), Fig. 5 (not shown), or piston-like means (140) attached to the end of the tube and engageable with the pile, Fig. 6 (not shown). The hollow tube may also be evacuated by combusting or reacting suitable fuels within the tube. Baffles located within the tube may prolong the duration of each drive pulse and may also effect a screwing action. In another embodiment the water is removed by raising a piston located within a hollow pile, the piston then being released to allow the water to refill the pile, Fig. 13 (not shown). The tube 4 may be provided with reservoir of, possibly pressurized, liquid at its upper end, the tube 4 being evacuated by steam or other condensible vapour acting on the underside of a free piston slidably located in the tube, Fig. 14 (not shown).
Patent GB-849484-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: HALL WILLIAM BATEMAN
IPC: G21C3/36
Filed: 1957-10-24
Abstract: 849,484. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 3, 1958 [Oct. 24, 1957], No. 33228/57. Class 39(4). A nuclear fuel plate has on at least one face extended surfaces in a herringbone pattern. The plates are spaced apart and stacked so that on opposed faces of adjacent plates the pattern is reversed to cause helical flow of coolant between plates. The extended surfaces are made by finning, ribbing, or roughening.
Patent GB-643850-A (GB)
Title: Apparatus for transmitting terms to a distance
IPC: G08C15/02
Filed: 1946-11-08
Abstract: 643,850. Phase difference measurements. ELECTRICITE DE FRANCE. Nov. 8, 1946, No. 33310. Convention date, Nov. 20, 1945. [Class 37] [Also in Group XXXVIII] Two waveforms whose phase difference is to be determined are applied through respective transformers T1, T2 to rectifier networks I, II. In one network the two waveforms are summed and in the other network applied differentially. The rectified outputs of the two networks appearing across load resistors R are fed differentially to the output line CD which yields a unidirectional potential directly proportional in magnitude to the phase displacement. Linearity is achieved by limiters 1, 2 which bring the two input waveforms to the same amplitude and preferably transform them to rectangular shape. Specifications 631,725 and 631,726, [Group XXXVII], are referred to.
Patent GB-443388-A (GB)
Title: Improvements in and relating to dock gates
IPC: B63B9/00
Filed: 1934-11-20
Abstract: 443,388. Dock gates. BOX, E., Lindisfarne, Stoneyhurst Road, South Gosforth, Newcastle-on-Tyne. Nov. 20, 1934, No. 33357. [Class 68 (ii)] In a flap-gate operating-gear of the kind comprising ropes attached to the gate and wound on and off a winch, there is fitted a " stenting " or compensating gear which takes up the vibrations of the gate due to sea waves. The gate 1, pivoted at its lower edge, is raised and lowered by a rope 2 and a winch. The rope is led round guide pulleys 7, 8, and also under a pulley 6 to which is attached a weighted carriage 5 in a pit 11. If the gate vibrates in a seaway, the carriage 5 rises and falls, taking-in and paying-out the rope 2. Buffers 9 absorb the shock as the carriage 5 rises to its uppermost limit, and are compressed as the gate closes.
Patent GB-1224208-A (GB)
Title: Improvements in proximity switches
Inventor: WILSON DAVID ALEXANDER
IPC: H03K17/95
Filed: 1968-07-12
Abstract: 1,224,208. Proximity switches. BURGESS MICRO SWITCH CO. Ltd. June 25, 1969 [July 12, 1968], No.33488/68. Heading G1N. A proximity switch for detection of ferromagnetic or electrically conducting materials has a ferrite cored coil 12, Fig. 1, forming part of an oscillator circuit, the circuit and subsequent detector and amplifier stages being mounted on boards 16 within a common casing 10. External power is supplied via a cable 24 which also carries the output leads for switching the load. The oscillator output is rectified by diode D1, Fig. 1, and through the Darlington pair T2 controls the current in load Z. The ferrite core, which is E-shaped in cross-section, Fig.3 (not shown), has an adjustable slug for fine setting of the switching distance, and the casing 10, which carries lock nuts 26 for mounting, may be screw-threaded to provide a coarse adjustment when mounted. The load Z may comprise any visual and/or audible indicator, or other switching elements. The casing 10 may be epoxy filled for use in liquids or explosive gases.
Patent GB-486549-A (GB)
Title: A new or improved apparatus for preventing ice formation on aircraft surfaces
IPC: B64D15/02
Filed: 1936-12-07
Abstract: 486,549. Preventing formation of ice on aircraft. HEADEN, L. A. Dec. 7, 1936, No. 33503. [Class 4] Apparatus for preventing ice formation on aircraft in which an air heater on the engine is in communication with a tube located in the leading portion of the aircraft surfaces comprises a blower C, Fig. 1, for forcing air heated from a muff A surrounding the engine exhaust manifold into tubes H, J located in the leading edges of the wings and formed with forwardly directed jet apertures such that the heated air is maintained at such a pressure in the tube that it is directed as jets against the interior of the leading edge parts K, Fig. 2. Blower C is driven by a windmill which, with its drive shaft, is readily detachable. Pipes H, J are formed in two lengths of differing diameter, H<1>, H2 and J<1>, J<2> respectively, formed with jet apertures H<3>, J<3> of increasing diameter or frequency outwardly. The aggregate cross-sectional areas of all the apertures are less than the mean cross-sectional area of the tube. The connection between the pipe portions may be telescopic to facilitate wing removal. A pipe L provided with a valve L<1> may be used to provide heated air to the cockpit. A byepass valve L<2> permits use of blower C for evacuating heated air from the neighbourhood of the engine in hot climates where wing heating is unnecessary.
Patent GB-656935-A (GB)
Title: Improvements in or relating to the heat treatment of comminuted mineral solids
IPC: F27B1/08
Filed: 1948-12-30
Abstract: 656,935. Treating ores. ERIE MINING CO. Dec. 30, 1948, No. 33503 Convention date, Jan. 14. [Class 82(i)] [Also in Group XII] In a method of 35 heat treating comminuted inorganic mineral solids in which the solids move downwards and a heating gas moves upwards, the rate of flow of the , gas is controlled by a means responsive to the temperature of the spent gas escap  ing from the top of the mass. As shown pellets to be indurated are fed into a chamber B of a furnace and pass down-  wards through a constricted portion into a chamber A from which they are removed. by a device 32. Such an apparatus is described in Specification 656,694, [Group XII]. A gas is passed under pressure through an inlet 15 and, on its passage upwards in chamber A, it extracts heat from the pellets until it reaches the restricted portion 4 where it passes into an annular space 25 and thence to a heating chamber C where its temperature is raised by a burner under the control of a thermostat 40. The heated gas then passes into chamber B where the pellets are dried and hardened. In order that the induration may be correctly performed without spalling or crushing of the pellets, the rate at which the gas flows through the apparatus is controlled by a thermostat 35 measuring the temperature of the spent gas and controlling the speed of the blowing fan 17. The temperature of the spent gas may be maintained above, but close to, its dew point. The heat for induration may be obtained completely or partly by mixing a combustible substance with the pellets and burning this material by using air as the gas. Specification 647,490 also is referred to.
Patent GB-1468695-A (GB)
Title: Dehydro-oligomers of diisopropylbenzene
IPC: C08L33/00
Filed: 1974-07-30
Abstract: 1468695 Dehydro-oligomerization of diisopropylbenzene BASF AG 30 July 1974 [31 July 1973] 33517/74 Heading C5E Colourless dehydro-oligomers of diisopropyl benzene having an average degree of polymerization of 3 to 30 comprise m- and p-diisopropylbenzene units in an average weight ratio m : p of 8 : 1 to 5 : 4. They may be prepared by reacting (i) a mixture obtained from the Friedel- Craft reaction of benzene with propene comprising 50-80% m-isomer, 10-40% p-isomer and up to 15% non-copolymerizable organic compounds with (ii) an organic peroxide compound at 130-230 C. in the presence of (iii) a reducing agent immiscible with the organic phase. Compounds used in the examples are (ii) di-t-butylperoxide, t-butylphenyl phthalide hydroperoxide; (iii) phosphorous acid, sodium hydroborate and cadmium grit. The exemplified products have 5 to 7 or 6 to 9 monomer units.
Patent GB-1474751-A (GB)
Title: Angle measurement
IPC: E21B47/00
Filed: 1975-07-23
Abstract: 1474751 Measuring angles FERRANTI Ltd 23 July 1975 [31 July 1974] 33732/74 Heading G1N Apparatus for measuring the angle of inclination #, Fig. 1, at the lower end of a marine riser 13 connecting a floating drilling platform 10 to the drilling location 12 on the seabed 11 comprises two accelerometer assemblies 15, 16, Fig. 2, fixed to the riser 13 close to each other and close to the flexible joint 14. Each accelerometer assembly contains two accelerometers measuring force components along two axes X, Y each perpendicular to the main axis of the riser 13. It is shown that when # is small, the components of # along the X and Y axes can be calculated from the four accelerometer signals and the known dimensions r and d.
Patent GB-1312164-A (GB)
Title: Toothed or positive-drive belt
IPC: F16H7/02
Filed: 1971-07-19
Abstract: 1312164 Toothed belt gearing INDUSTRIE  PIRELLI SpA 19 July 1971 [6 Aug 1970]  33739/71 Heading F2Q To ensure long service life and reduce wear of the flanks of the belt teeth of an endless positive driving belt 3 in which the belt teeth 4 have substantially straight inclined flanks radiused both at their tips and at their roots by an arc 16 of a circle, the belt teeth are proportioned such that the radius of said arc 16 is equal to a value which falls within the range from 5 to 10% of the pitch p of the belt teeth 4, the ratio between the whole depth h of the belt teeth 4 and their pitch p and the ratio between the dimension s of the belt teeth 4 along their tip line and their pitch p falling within the range from 0À25 to 0À4 and being preferably within the range from 0À3 to 0À38, and the ratio between the whole depth h of the belt teeth 4 and the diameter d 1  of the smaller pulley 1 with whose teeth 5 the teeth 4 of the belt 3 are to mesh falling within the range from 0À05 to 0À20.
Patent GB-847136-A (GB)
Title: Colour photographic process
Inventor: ANDERSON GEORGE DE WINTER
IPC: G03C7/30
Filed: 1957-11-01
Abstract: 847,136. Colour photography. IMPERIAL CHEMICAL INDUSTRIES Ltd., Dec. 10, 1958 [Nov. 1, 1957], No. 34146/57. Class 98(2) Azomethine dye images, produced by colour development, are subsequently converted to azo dye images by treatment with an acid aqueous solution of a primary aromatic or heterocyclic hydrazine. The azo dyestuff obtained is identical with that formed by coupling the diazo compound (which, on reduction, would yield the hydrazine) directly with the colour coupler from which the azomethine dye is formed on colour development. The developed, bleached and fixed material is preferably hardened with formaldehyde or chrome alum before treatment with a warm solution of the hydrazine. The hydrazine referred to include phenylhydrazine and a number of substituted phenylhydrazines, a-naphthylhydrazine, a-naphthylhydrazine-4-sulphonic acid and 2-benzthiazylhydrazine. The aqueous solution may be acidified with sulphuric or hydrochloric acids. Examples of processing multilayer material are given in which a green sensitised gelatino silver iodo-bromide emulsion is processed to a yellow azo dye image. In a further example a magenta image is formed from a green sensitised layer. The exposed emulsion which contains a solution of the potassium salt of a known colour coupler is colour developed with N: N-diethyl-p-phenylenediane, bleached and fixed. a-naphthyl hydrazines are used to convert azomethine dyes formed from pyrazolone or methyloctadecylanilide couplers to azo dyes and nitrophenylhydrazines are used to convert azomethine dyes formed from pyrozolone or #-cyanoacetobenzene couplers to azo dyes. The magenta image is obtained by using a diethylaminophenylhydrazine instead of a phenylhydrazine-4-sulphonic acid with the same pyrazolone coupler.
Patent GB-154906-A (GB)
Title: Improvements in and relating to magneto electric ignition machines
IPC: H02K1/27
Filed: 1920-12-03
Abstract: 154,906. Bosch Akt.-Ges., R. Dec. 3, 1919, [Convention date]. Magneto-electric machines; cores.-In ignition magnetos having rotating field magnets placed within the armature, the rotor is formed of integral unit laminµ, each lamina being preferably shaped as shown in Fig. 1; the radii of the convex and concave edges are equal and the central angle in each case is 90 degrees. The magnet plates a are stamped from a sheet without waste, as shown in Fig. 3, and are arranged in a packet held together by end plates b<1>, b<2>, Fig. 2, and rivets c<1>, c<2>.
Patent GB-825295-A (GB)
Title: Improvements in machines for sharpening razor blades
IPC: B24D15/08
Filed: 1956-11-09
Abstract: 825,295. Sharpening razor blades. Mc- LENNAN, D. Nov. 4, 1957 [Nov. 9, 1956], No. 34361/56. Class 60. A machine for sharpening or honing razor blades comprises two cylinders 1, 2 of case hardened steel having intermeshing gear wheels 8, 9 and rotated by a handle 10. A pawl and ratchet may be provided to prevent rotation in the undesired direction. The blade 15 is located by posts 14 and is pressed on to the cylinders by a block 12 of foam rubber secured in the lid 11 of the casing 7 ; the block carries a permanent magnet 13 which removes the blade from the posts when the lid is removed. The lid may be hinged to the casing and have a spring fastener. The cylinders may be built up of discs of leather or cork.
Patent GB-1045277-A (GB)
Title: Improvements in haulage systems for mineral mining machines
Inventor: MONKS HARRY
IPC: E21C29/14
Filed: 1962-09-07
Abstract: 1,045,277. Winches; tensioning chains; shock - absorbing. COAL INDUSTRY (PATENTS) Ltd. Aug. 30, 1963 [Sept. 7, 1962], No. 34378/62. Heading B8B. A haulage power unit 19, Fig. 2, for mining machines operating in conjunction with a long wall mine face conveyer 10, is slidably mounted on the side of the conveyer and yieldingly restrained as by an hydraulic ram 29 for limiting the tension in the chain C. The motor 19 is mounted on a carriage 21 having slippers 22 with renewable anti-friction liners movable over parallel guide rails 15. The pump 31 supplying pressure fluid to the ram 29 is driven from the conveyer motor 11 and is associated with a regulable relief valve 33 which determines the ram pressure and cable tension.