baber/WOPTO huggingface dataset:
Patent GB-1219866-A (GB)
Title: Improvements in or relating to fluid flow control valves
Inventor: MIGDAL KAZIMIERZ STANLEY
IPC: F16K17/04
Filed: 1969-06-19
Abstract: 1,219,866. Valves. I. V. PRESSURE CONTROLLERS Ltd. 19 June, 1969, No. 31190/69. Heading F2V. A valve comprises a closure member 15 urged on to a seating 13 at the mouth of a discharge passage 11 by a spring assembly 18, with a sealing part 17 of resilient material, e.g. rubber, carried thereby, and a pin 19 of metal or non- elastomeric material positioned in the mouth of the passage 11, having a stem portion and a head portion of increased diameter to fit in a recess at the mouth of the passage 11, and the surface of the pin 19, or the passage 11, is grooved or scored so that the pin will not constitute a sealing member, but will prevent distortion of the sealing pad 17.
Patent GB-954790-A (GB)
Title: Improvements in foundation garments
IPC: A41C1/00
Filed: 1959-09-14
Abstract: 954,790. Corsets. W. N. HAYLOCK. Sept. 9, 1960 [Sept. 14, 1959], No. 31214/59. Heading A3V. A girdle has a front panel comprising a pair of extensible cross-over webs 6, 7, each web being secured down each side to the garment at least one web being detachably secured down one side by a sliding clasp or other fastener and permanently secured down the opposite side and temporary interlocking means such as bands 17, 18 of "Velcro" (Registered Trade Mark) on the contacting surfaces of the webs. The girdle may be reinforced by means of one or more pleats 15 in the fabric of the web, one or more fabric bands sitched to the web, or reinforcing yarns etc. woven into the fabric. A non-extensible vertical band 16 (Fig. 1 not shown) may also be used as reinforcement on one or both webs. The rear panel 1 and rear side panels 2, 3 are made of vertically extensible fabric and the front side panels 4, 5 of two way stretch fabric.
Patent GB-972796-A (GB)
Title: Improvements in or relating to helical screw thread pumps
IPC: F04C2/107
Filed: 1963-08-08
Abstract: 972,796. Rotary pumps. MONO PUMPS (AFRICA) (PROPRIETARY) Ltd. Aug. 8, 1963 [Sept. 10, 1962], No. 31303/63. Heading F1F. In a pump comprising two rotor and stator pump units of the Moineau type, each unit of opposite hand, is arranged in a common casing 1 adapted to be connected at its top to a rising main, wherein the two stators 2 and 3 are separated by a common annular side inlet chamber 12, wherein the two rotors 4 and 5 are hollow and form together a common bore such that the upper pump unit delivers upwardly directly into the rising main, while the lower pump unit delivers downwardly into reverse flow chamber 14, up the common bore and out through ports 8 into the rising main. As shown, the casing 1 is of tubular form of circular cross-section suitable for use in boreholes. The stators 2 and 3 are made of resilient material, e.g. rubber and are fixed to the inside of the casing, e.g. by an adhesive. The top end of the upper rptor 4 is connected to a driving shaft 9 by means of universal couplings 10.
Patent GB-1014168-A (GB)
Title: Rotatable plug-type valve
IPC: F16K11/085
Filed: 1963-08-08
Abstract: 1,014,168. Valves. STANDARD TELEPHONES & CABLES Ltd. Aug. 8, 1963 [Aug. 16, 1962], No. 31321/63. Heading F2V. A rotary-plug valve comprises a casing having side connections 1 and 2 and peripheral connections 3 and 4, and a plug 7 having recesses, e.g. 9 and 10, disposed alternately on each side of the plug. The plug extends into a close proximity of the casing at the peripheral face and cavities 11 and 12 are formed at its sides. The casing is formed from two pieces 5 and 6.
Patent GB-1065426-A (GB)
Title: Novel titanium dioxide pigments
IPC: C08K9/00
Filed: 1964-08-04
Abstract: The tinting strength of TiO2 pigments is improved by a dry treatment involving (a) increasing the pour density to above 0.95 g./c.c., e.g. up to 1.5 g./c.c., then (b) decreasing it to below 0.9 g./c.c. by fluid energy melting. Step (a) may be effected by compaction or by milling in a ball, pebble, edge-runner, rotorstator or two-roll mill. The fluid energy mill may be a "Micronizer" (Trade Mark), "Jet-O-Mizer" or "Reductionizer" mill.  The TiO2 may have been produced by flame oxidation or hydrolysis of Ti halide, or by precipitation from solution, and may have been calcined or amine treated.ALSO:TiO2 pigments are subjected to a 2-stage dry milling process: (a) in a ball, pebble, edge-runner, rotor-stator, or two roll mill, by which their pour density is increased to above 0.95 g/cc; and (b) in a fluid energy mill, by which their pour density is decreased to below 0.9 g/cc.
Patent GB-651695-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M7/133
Filed: 1948-12-03
Abstract: 651,695. Spray carburetters; regulating. BENDIX AVIATION CORPORATION. Dec. 3, 1948, No. 31377. Convention date, Dec. 30, 1947. [Classes 7(iii) and 7(vi)] A carburetter for an engine which operates normally on-less than the full number of cylinders comprises a fuel nozzle 22 fed from a float chamber 24 through a conduit 28 containing a main metering jet 30, and an auxiliary jet 70 in parallel therewith closed by a valve 72 at normal operation and opened at high power operation on all cylinders. The carburetter also includes an accelerating pump 114 actuated from the throttle valve by a member 116, a power enrichment jet 90 opened at full throttle by a spring-loaded member 100 connected to a suction-actuated piston 104, and a spark advance mechanism actuated by the suction on the engine side of the throttle valve transmitted through a pipe 140. During normal operation a solenoid 180, Fig. 3, is energized to rotate a shaft 184 clockwise, whereby a lever 186 lifts a rod 76 to allow the valve 72 to close, lever 187 lifts a rod 150 to allow a valve 144 to close an air bleed 142 into the pipe 140, a lever 185 moves a stop beneath the piston 104 to prevent opening of the power jet 92, and a further lever moves a stop to limit the stroke of the accelerating pump 114, the pston of which is resiliently connected to the actuating member 116. For high power operation, the solenoid 180 is de-energized causing return of the shaft 184, whereby the valve 72 is opened to increase the fuel supply, the air bleed valve 144 is opened to modify the effect of the increased suction on the spark advance mechanism, and the levers 185, 186 withdraw their respective stops to permit operation of the power enrichment device 104 and allow the accelerating pump to perform a complete stroke. A ball valve 134 in the accelerating pump outlet pipe 128 opens an air inlet 132 to destroy suction on the fuel in the pipe 128 when the pump is not operating. The fuel nozzle'is fed from a well 26 with an emulsifying device 40 and discharges beneath a bar 48 provided with lips 49, 51, which prevent fuel dribbling therealong to the Venturi wall 20. Specification 619,292, [Group XII], is referred to.
Patent GB-466018-A (GB)
Title: Improvements in the lubrication of gas meters
IPC: G01F15/00
Filed: 1935-11-13
Abstract: 466,018. Gas meters. GLOVER & CO., Ltd., T., and WILSON, J. S. Nov. 13, 1935, No. 31393. [Class 54] A pump 1 secured to the outisde of the outer wall 2 and driven from the meter mechanism supplies lubricant through pipes 3, 4, distributing boxes 5, 6, and tubes 7, 8 to holes 12b in the valve seatings leading to grooves or recesses 12<a> in the working faces. Non-return valves 14 may be included in the pipes or tubes. The pump may be driven through toothed gearing from a worm 10 on the shaft operating the valves, means preferably being provided to allow the pump to be operated by hand when the meter is not in operation,
Patent GB-910854-A (GB)
Title: Black level stabilisation circuit
Inventor: BARNARD CLIFFORD ALBERT
IPC: H04N5/53
Filed: 1960-09-13
Abstract: 910,854. Automatic gain control arrangemerits. PYE Ltd. Sept. 4, 1961 [Sept. 13, 1960], No. 31505/60. Class 40 (5). In an automatic gain control arrangement to stabilize the black level of a composite video waveform in a television amplifier, the television waveform from the amplifier is detected and D.C. coupled to a gating device, the gated pulse output being A.C. coupled to a clamp circuit Which clamps the output to a pre-set D.C. potential during part of the reference portion of the wave and then the output is filtered to produce a D.C. control voltage for the amplifier. In the embodiment, an amplifier A at a receiver or transmitter feeds detector D. The output from the detector is applied to the suppressor grid of a pentode valve V1 which is normally cut-off. The valve V1 is made to conduct by the application of line frequency gating pulses which are applied to the control grid from source GS during the black level period. The gating pulses are 4 to 5 microseconds wide and may be derived from the synchronizing pulses of the television waveform. The output from V1 is A.C. coupled via C1 to a clamp circuit CC which consists of two diodes D1, D2 which are fed with 2-microsecond clamping pulses, to clamp the signal to a reference voltage V during the gating pulse period. The clamped waveform is directly coupled to a cathode follower V2, the output of which is filtered, F, and the D.C. control voltage output is applied to one or more stages of amplifier A. If the arrangement is used in a transmitter another amplifier SA may be added between the gating valve V1 and the control valve V2. If a colour television signal is being stabilized and a colour synchronizing H.F. burst is present in the back porch period, the reference potential may be obtained from the synchronizing pulse or from the front porch period.
Patent GB-846944-A (GB)
Title: Non-return valve
Inventor: CRICK JOHN SIDNEY
IPC: F16K15/06
Filed: 1957-10-09
Abstract: 846,944. Non-return valves. BRITISH OXYGEN CO. Ltd. Oct. 1, 1958 [Oct. 9, 1957], No. 31572/57. Class 135. A non-return valve consists of a closure member 14 urged towards a seat 13 by a spring 19 and having three longitudinal grooves 16 which increase in depth towards the end of the member remote from the seat to form flow passages that guide flowing fluid into the bore of the spring. The spring is received in a recess in the end of the closure member, opening movement of which is limited by a shoulder 20. The valve seat and/or the closure member may have resilient inserts, and the closure surfaces may be conical instead of flat.
Patent GB-1218135-A (GB)
Title: Substituted phenethylamine derivatives
IPC: C07D317/58
Filed: 1968-07-02
Abstract: 1,218,135. Phenethylamine derivatives. ABBOTT LABORATORIES. 2 July, 1968 [28 July, 1967], No. 31587/68. Heading C2C. Novel phenethylamine derivatives of the general formula wherein R and R 1  are each a hydrogen or halogen atom or a trifluoromethyl, di-(C 1-7  alkyl)amino, C 1-7  alkoxy or C 1-7  alkyl group, or R and R 1 , taken together in the 2- and 3-positions, form a fused benzene ring, or R and R 1 , taken together in the 3- and 4- positions, form a methylenedioxy group; R2 is a hydrogen atom or a phenyl or C 1-7  alkyl group; R 3  is a hydrogen atom or a C 1-7  alkyl, aryl, aralkyl or trifluoromethyl group; and X is a cycloalkyl, cycloalkyl-C 1-7  alkyl or hydroxyalkyl group; and acid addition salts thereof are prepared (a) by reaction of an amine of the general formula NH 2 X with a phenylacetaldehyde derivative of the general formula followed by reduction of the resulting imine of the general formula with sodium borohydride or lithium aluminium hydride; or (b) when X is a cycloalkylmethyl group, reaction of a phenethylamine derivative of the first general formula above wherein X is a hydrogen atom with a carboxylic acid chloride of the general formula X<SP>1</SP>COCl, wherein X<SP>1</SP> is a cycloalkyl group, followed by reduction of the resulting amide with lithium aluminium hydride; optionally followed by salification of the product.
Patent GB-1479021-A (GB)
Title: Devices defining component storage zones for conveyors
IPC: B65G47/51
Filed: 1974-07-17
Abstract: 1479021 Endless conveyers K G HINTERKOPF 17 July 1974 [1 Aug 1973] 31639/74 Heading B8A An endless conveyer has a storage device associated therewith and comprising a first section 10 of conveyer chain extending between fixed sheaves 3 and movable pulleys 6 and a second section 11 of the chain extending between fixed sheaves 2 and movable pulleys 5, the pulleys 5, 6 being so interconnected that when one set moves to lengthen its corresponding chain-section, the other end moves to shorten its corresponding chain section so as to enable the device to receive objects whilst not advancing them or vice versa. As shown the pulleys are mounted on common carriages 9 also connected to chains 30 to pulleys 29 in turn driving further carriages 8 which carry guides 26 for the conveyer chain, and fixed guides 25 are also provided. In alternative embodiments the pulleys are carried by respective mechanically interlinked carriages.
Patent GB-193931-A (GB)
Title: Improvements in or relating to locomotives
IPC: B61C9/14
Filed: 1921-11-25
Abstract: 193,931. Vickers, Ltd., Variable Sp eed Gear, Ltd., Ingoldby, M. K., and Henderson, Sir B. Nov. 25, 1921. Hydraulic transmission apparatus.- Relates to locomotives of the kind having an internal-combustion engine B directly coupled to one or more pump units C, and one or more motor units D connected to the driving wheels without the use of gear wheels and so that the motor units and the driving wheels rotate at the same speed. The motor unit is of the parallel cylinder type having a valve plate against which the cylinder barrel rotates, and the shaft d extends through the valve plate, each end of this shaft being provided with a crank D<1> connected to the driving wheels by a coupling-rod D<2>. In a modification the shaft d forms the axle of a pair of driving wheels, this axle being coupled to another by coupling-rods.
Patent GB-484458-A (GB)
Title: Improvements relating to electro magnetic time delay relays
IPC: H03K17/28
Filed: 1937-11-17
Abstract: 484,458. Electromagnetic relays. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 17, 1937, No. 31667. Convention date, Nov. 17, 1936. [Class 38 (v)] Simultaneous operation of contacts s, s<1> from the position shown, causes a steady current to flow through the working winding AI of the relay and an " opposition " current, produced by the discharge of the condenser C and ever diminishing, to fiow through the auxiliary winding AII. The effects of the two currents are, to begin with, equal and opposite but after a time interval, determined by the values of the capacity C and the resistance W, the working winding AI sufficiently overpowers the winding AII to operate the relay contacts. The relay contacts may include a contact a which opens before the others and serves, by completely breaking the current through the winding All, to cause a quick decisive operation of the remaining contacts.
Patent GB-763550-A (GB)
Title: Dialkyl and diacyl derivatives of ferrocene and processes for the preparation thereof
IPC: C07F17/02
Filed: 1954-11-02
Abstract: Dialkyl ferrocenes of formula <PICT:0763550/IV(b)/1> where R is an alkyl group are obtained by hydrogenating at elevated temperature and pressure a diacyl ferrocene of formula <PICT:0763550/IV(b)/2> with gaseous hydrogen in the presence of a catalyst which promotes the reduction of acyl groups in preference to the saturation of double bonds.  The groups R may be the same or different and are preferably C1 to C15 unsubstituted alkyl groups.  Diacyl ferrocenes may be obtained by reacting ferrocene with an acyl halide or anhydride in the presence of an acidic catalyst (especially a Friedel-Crafts catalyst).  The reaction preferably takes place under anhydrous conditions in a solvent which will activate the catalyst but not take part in any reaction. Methylene chloride, methyl chloride, chloroform, di- and sym-tetrachloroethane are specified.  Catalysts specified include aluminium chloride, ferric chloride, antimony pentachloride, boron fluoride, zinc chloride, titanium tetrachloride, hydrofluoric acid, sulphuric acid, phosphoric acid and phosphorus pentachloride.  Reaction may take place at temperatures between about - 10 DEG  C. and about 150 DEG  C., at atmospheric, subatmospheric or superatmospheric pressure.  On completion of the reaction the mixture is poured on to an excess of cracked ice and a strong mineral acid, and the organic phase containing the diacyl ferrocene separated, washed with sodium bicarbonate and distilled water and finally distilled.  The crude product may be hydrogenated as it is or purified by recrystallization from ethanol-benzene, ethanol-hexane, petroleum ether or hexane or by distillation.  Dialkyl ferrocenes.-The so-formed diacyl ferrocene and catalyst may be placed in a pressure vessel in which the contents may be agitated, the vessel swept and then pressurized with hydrogen and the vessel heated until reaction is complete.  The catalyst is a copper chromite catalyst, which may be supported on an inert carrier such as kieselguhr, diatomaceous earth or silica gel. Reaction takes place at temperatures above 150 DEG  C., preferably between 175 DEG  and 200 DEG  C.  Solvents such as lower alkyl ethers (diethyl ether), lower alkanols (methanol, ethanol) and heterocyclic compounds such as dioxane and tetrahydrofuran may be employed.  On completion of the reaction the catalyst is filtered off, the solvent (if used) removed by distillation and the product purified by vacuum or steam distillation, or by recrystallization. The examples describe the preparation of diacetyl ferrocene and its reduction to diethyl ferrocene, di-(n-butyryl) ferrocene and di-n-butyl ferrocene and di-(n-caproyl) ferrocene and di-n-hexyl ferrocene.ALSO:Dialkyl-ferrocenes and diacyl-ferrocenes of formul <FORM:0763550/III/1> and <FORM:0763550/III/2> where R is an alkyl group, (see Group IV(b)) may be used as anti-knock additives in fuels for internal combustion engines.
Patent GB-636150-A (GB)
Title: Improvements in and relating to supercharger systems for aircraft cabins
IPC: B64D13/04
Filed: 1947-12-01
Abstract: 636,150. Fluid-pressure servomotor-control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 1, 1947, No. 31700. Convention date, May 13, 1942. [Class 135] [Also in Group XXVIII] In an apparatus for maintaining a desired air pressure and flow in an aircraft cabin, the speed of the supercharger supplying air to the cabin is controlled by means responsive to the discharge pressure of the supercharger and the amount of opening of a valve regulating the flow of air from the cabin is controlled by means responsive to the rate of flow of air from the supercharger. A supercharger 2 supplies air to a cabin 1 and is driven by a motor 5 controlled by an adjustable rheostat 7 regulated by a pressure-responsive bellows device 14 connected by a pipe 15 to the discharge conduit 4 of the supercharger 2 so that the increase of discharge pressure decreases the speed of the motor and vice versa. The stem 26 of a valve 24, controlling the flow of air from the cabin 1, is connected to a piston 27 in a cylinder 28, the piston 27 being subject to cabin air pressure above and below by an equalizing opening 41 and holes 30 in the top and bottom respectively of the cylinder 28. A bore 31 extends through the stem 26 the upper end of which is formed as a valve seat 32 and cooperates with a valve 33 attached to a stem 34 carrying a piston 35 movable in a cylinder 36 under the action of a tension spring 37 and the pressures above and below it which are respectively equal to the pressure in the discharge conduit-4 and the low-pressure side of a double venturi 42 fitted in the discharge conduit. Under normal operating conditions, due to the equalizing opening 41, the piston 27 is balanced. When the air flow through discharge conduit 4 decreases the piston 35 moves upwards and lifts valve 33, allowing escape through bore 31 of pressure above the piston 27 which is thereby raised, increasing the opening of the valve 24 and the flow of air from the cabin 1. As piston 27 moves upward, valve seat 32 approaches the valve 33 and reduces the flow through the bore 31 until the piston 27 is again balanced. The increase in flow of air from the cabin 1 results in a decrease in pressure therein which operates through the pressure-responsive bellows device and increases the speed of the supercharger 2 until the air flow is restored to normal. Similarly, if the air flow in the conduit 4 increases the valve 24 moves toward the closed position to effect an increase in cabin pressure and a decrease in supercharger speed.
Patent GB-1057660-A (GB)
Title: Tambours
IPC: E06B9/11
Filed: 1964-12-04
Abstract: 1,057,660. Roll-top desks &c. MILTECH A.G. Dec. 4, 1964 [Dec. 2, 1964], No. 31845/66. Divided out of 1,057,659. Heading A4H. A tambour comprises a plurality of elongated slats each having a rib (102) on one longitudinal edge and a corresponding recess (104) along the opposite edge, the slats being held together by three nylon rods (116) which extend through the slats and are secured in the end slats. Grooves in the slat ends cooperate with track guide projections on the end panels of a desk.
Patent GB-900786-A (GB)
Title: Improvements in and relating to condensing devices
IPC: B01D7/02
Filed: 1959-09-18
Abstract: Gases containing vaporized, normally solid, constituents, e.g a dicarboxylic acid or its anhydride, are passed through a pipe 3 into a condensation vessel 1 traversed by pipes 7 (Fig. 2) to which a cooling medium, e.g. air, is supplied through a pipe 6. Beneath the vessel 1, and separated therefrom by a sieve 11, is a vessel 9 which carries heating pipes 12 and (or) an electric heater 13 and in which a body of the substance(s) to be recovered is kept in the molten state.  After condensation has proceeded for a sufficient time in the vessel 1, the pipes 3 and 6 are closed and molten material is delivered by a pump 18 to a distribution pipe 19 above the pipes 7. The molten material trickles down over the pipes 7, removing condensate from the pipes and delivering it to the vessel 9, from which it is <PICT:0900786/III/1> <PICT:0900786/III/2> withdrawn as required through a pipe 21 (Fig. 2).  When condensate has been removed from the surfaces of the pipes 7, the pump 18 is shut off and the pipes 3 and 6 are re-opened.  The transition from the condensation stage to the stage of condensate removal may be effected periodically with the aid of a time switch, and the process may be made continuous by arranging two vessels 1 in parallel, one vessel being used for condensation during the periods when condensate is being removed from the other vessel.
Patent GB-420031-A (GB)
Title: Improvements in tea-pots, coffee-pots and like utensils
IPC: A47J41/02
Filed: 1933-11-16
Abstract: 420,031. Hollow-ware. EVANS, A. A., 17, Shaftesbury Mansions, Grayshott Road, Battersea, London. Nov. 16, 1933, No. 31958. [Class 66] [See also Groups VI and XIII] A double-walled vacuum tea or coffee pot is characterized by a double-walled vacuum spout and lid. The pot consists of inner and outer vessels 3, 1, each with its spout 4, 7. The vessels are joined at the upper rims and the space enclosed is exhausted. The lid is hollow and also exhausted.