baber/WOPTO huggingface dataset:
Patent GB-1130846-A (GB)
Title: Process for the production of oxazole
Inventor: BROWN CHRISTOPHER JOHN
IPC: C07D263/32
Filed: 1966-05-11
Abstract: 1,130,846. Oxazole; acrylonitrile and acetonitrile; acrolein. BP CHEMICALS (U.K.) Ltd. 21 April, 1967 [11 May, 1966], No. 20801/66. Heading C2C. Oxazole and by-products acrylonitrile, acetonitrile and acrolein are produced by reacting at elevated temperatures in the vapour phase propylene with O 2  and NH 3  over an oxidation catalyst, the proportion of propylene in the feed being at least 4% by volume, the concentration of NH 3  being at least 4% by volume and the molar ratio of O 2  to olefine being at least 2. The oxazole can be separated from the by-products by fractional distillation, solvent extraction or hydroextraction.
Patent GB-354952-A (GB)
Title: Improvements in rotary stencil duplicators
IPC: B41L13/04
Filed: 1930-07-09
Abstract: 354,952. Stencil-duplicators. HARTMANN, E. B., (trading as ANDREWS & CO.), 106, Great Saffron Hill, London. July 9, 1930, No. 20808. Drawings to Specification. [Class 100 (ii).] Inking-apparatus.-In rotary stencil-duplicators of the type comprising a pair of inking-cylinders arranged one above the other and connected by stencil-carrying bands, the working surface of the upper cylinder is roughened so as to avoid slip relatively to the ink-distributing roller. The roughening may comprise (1) shallow grooves, preferably V-shaped, disposed lengthwise of the cylinder so as to form minute parallel ridges; (2) transverse grooves arranged at right-angles to the axis of the cylinder or at any other suitable angle ; (3) transverse grooves crossing one another to provide projections; (4) longitudinal grooves crossing transverse grooves. The grooves act also as ink-containing means ensuring proper density of the duplicated matter.
Patent GB-643313-A (GB)
Title: Improvements in variable stroke pumps
IPC: F04B1/22
Filed: 1948-08-06
Abstract: 643,313. Revolving cylinder swash plate pumps. DOWTY EQUIPMENT, Ltd., and AMOR, D. R. P. Aug. 6, 1948, No. 20829. [Class 102 (i)] A swash plate pump has the plunger and cylinder assembly joined in contrarotating sections and the reactions of the forces developed in all the cylinders are taken by a single member. The pump has two assemblies 11, 12 rotated in opposite directions from a drive shaft 16 by bevel gears 13, 14 which engage a common bevel gear 15 on the drive shaft. Plungers 18 reciprocable in the cylinders 17 are actuated by swash plates 19, 20, journalled in a control ring 21 which is adapted to rock about trunnions 22 so as to vary the stroke of the pistons. The swash plates are maintained in engagement with their journals by springs 23, 24 and thrust members 31 are interposed between the plungers and their respective swash plate to ensure that the reactions of the co-axial plungers are approximately " in line." The outer ends of the cylinder assemblies 11, 12 engage valve plates 25, 26 respectively, which have arcuate slots 27, 28 communicating with conduits 29, 30 which may each be either the suction or delivery conduit according to the direction of the inclination of the swash plates.
Patent GB-224946-A (GB)
Title: Improvements in safety devices of the automatic cut-out type for alternating currentcircuits
IPC: H01H83/12
Filed: 1923-08-18
Abstract: 224,946. Cox, F. B. Aug. 18, 1923. Protective arrangements.-In a polyphase circuit having a circuit breaker held closed by mechanical means against an opening force, a no-volt release is provided comprising an electromagnet and nor. mally operative mechanical means controlled thereby which when released release the means holding the circuit-breaker closed the electromagnet winding in series with or across he polyphase lines, and controlling a switch in the no-volt circuit which is opened on disturbance of balance in the current traversing the electromagnet windings. As applied to the circuitbreaker described in Specification 208,731, the feeders A<1> - - A<3> are. connected to the threephase motor C through a triple-pole circuitbreaker having pairs of fixed contacts a<1>, c' - - a<3>, c<3> bridged by members b<1> - - b<3> carried by the vertically movable operating rod b<4>. The no-volt coil d<4> is connected across a pair of phases and has in its circuit a switch F operated by a pivoted bar f<1> carrying an armature adapted to be attracted, to the core g. On the core are windings g<1> - g<3> connected across phases as shown in Fig. 1 or in series with the phases as shown in Fig. 2. Normally currents in windings g<1> - -g<3> balance and the switch F remains closed but on a predetermined disturbance the switch F is opened. The consequent de-energization of the coil d<4> releases its core D allowing the striker arm d<1> to be moved over by its spring d<2>, so colapsing the toggle E and allowing the circuit-breaker to be opened by its springs b<5>. The point of release is varied by moving a weight f<3> along a graduated scale on the lever f<1>.
Patent GB-457648-A (GB)
Title: Improvements relating to portable power driven percussive tools
IPC: B25D17/08
Filed: 1936-07-29
Abstract: 457,648. Percussive tools. CLIMAX ROCK DRILL & ENGINEERING WORKS, Ltd., 4, Broad Street Place, London.-(Wodaok Electric Tool Corporation; 4627, W. Huron Street, Chicago, U.S.A.) July 29, 1936, No. 21033. [Class 124] A tool - retaining device comprises a U-shaped piece 30 which slides laterally into engagement with a nose piece 32 resiliently supported by the spring 40 on the front head of the drill 10. The U-member is locked against lateral movement by the sleeve 41 which is forced forward by the spring 42, but can be pulled back by hand to release the tool. In a modification the piece 32 is rigidly connected to the front head of the drill 10.
Patent GB-1474019-A (GB)
Title: Liquid fuel dispensing system
IPC: B67D7/22
Filed: 1973-05-03
Abstract: 1474019 Dispensing liquids DRESSER EUROPE SA 3 May 1974 [3 May 1973] 21140/73 Heading A4T A liquid fuel dispensing system comprises dispensing pumps 10 each having a fuel meter (not shown) including an electric pulse transmitter for generating pulses representative of the volume of fuel dispensed, a central control 11, a data transmission link 13 or 18 between each pump 10 and the control 11, means at each pump 10 for accumulating the pulses from the respective transmitter during dispensing, and sampling means at the control 11 for repetitively deriving inputs indicative of dispensed volume from the pulse accumulating means in turn, which inputs are updated at each sampling. Data transmission may be via lines 18 provided for the purpose or high frequency signals may be carried by the power supply lines 19 for the pumps. During dispensing of a selected blend of high and low grade fuels, respective pulse transmitters (P 1  ), (P 2 ) Fig. 1 (not shown), in lines supplying the two grades may be employed to produce signals which are processed in order to control a servomotor (S) for adjusting a mixing valve to maintain the correct blended proportions. Details of the current price and blending ratio for each grade available may be stored in memory (K), the unit price, volume dispensed and the resultant total price as calculated by the electronic system for each pump 10 being fed to the data link 13, 18 for display. Each pump may have a respective display arrangement, Fig. 3 (not shown) possibly located on the dispensing nozzle, the arrangement comprising thirteen seven-segment display devices (31), grouped to indicate unit price, dispensed volume and total cost. The electronic system may be adapted to include means for adjusting the unit price e.g. according to time of day, bank-note or credit card accepting means, trading stamp or receipt issuing means, &c., and for self-service applications the central control may include a central keyboard console, Fig. 4 (not shown), and an intercom system.
Patent GB-1460682-A (GB)
Title: Diverter valve
IPC: F16K1/44
Filed: 1975-05-19
Abstract: 1460682 Valves AMERICAN STANDARD Inc 19 May 1975 [5 June 1974] 21147/75 Heading F2V A diverter valve is mounted in the downturned end 16 of a spout 12 and comprises a hollow spool 52 provided with an upper seal 64 which co-operates with a surface 22 to control flow through the spool. A lower seal 48 clamped between a detachable end piece 40 and the spout co-operates with the skirt portion 60 of the spool to control flow around the spool. On pulling the handle 36 the spool is moved from the lower bath position to an upper shower position in which it is held by water pressure acting on the effective area of the seal 64 which is larger than that of the seal 48. The spout and valve are preferably formed of modified polyphenylene oxide and the seals of natural or synthetic rubber.
Patent GB-336567-A (GB)
Title: Steel framing for walls, ceilings, roofs and the like
IPC: E04B1/24
Filed: 1929-07-10
Abstract: 336,567. Jaklin, H., and Frostig, O. July 10, 1929. Ironwork, constructional. - The beams and columns forming the skeleton of a building are made of sheet metal with hollow flattened flanges, and are connected together by brackets 34, 35, 39, 40, Fig. 6, inserted through slots in the edges of the flanges of one member and into the hollow flange of the adjacent member, or by wires 36, Fig. 7. Beams in the same plane are connected as shown in Fig. 3, by severing the ends of the flanges from the web of beam 70, flattening the severed ends, and inserting them into slots in the edges of the flanges of beam 69. A third girder 71 is bevelled at the flanges and similarly connected. The joints so made are further secured by wires 37, 41, Fig. 4. The walls, floors, and roof are completed by horizontal and vertical tie-rods 14, 15, 16, and concrete 21, 24 cast in situ with temporary shuttering or applied to strips 18 of corrugated cardboard, reeds, or wood wool. The spaces 25 may be left empty or be filled with slag, peat, or the like. The columns are anchored to the concrete plinth 7 by plates 9 formed with lugs turned up to fit the hollow flanges and other lugs to key with the concrete.
Patent GB-847045-A (GB)
Title: Improved gas turbine installation
IPC: F02B71/06
Filed: 1958-07-02
Abstract: 847,045. Combustion product plant. GENERAL MOTORS CORPORATION. July 2, 1958 [July 15, 1957], No. 21180/58. Class 7(1). [Also in Groups XXVI, XXIX and XXXI] In a gas turbine-electric locomotive plant a free-piston gas generator delivering heated products of combustion to the gas turbine comprises a chamber 18 supplying air to compression chambers 24 which discharge into air bores 31. Compressed air from the latter enters combustion chambers 20 via ports 33, and the products of combustion mixed with surplus air are discharged from the combustion chambers via ports 37 into a duct 39 connected to the intake of the turbine. A re-circulating duct 41, interconnecting a compression box 31 with the air supply chamber 18, is controlled by a valve 43 operated by a pressureresponsive servo 54. The combustion chambers 20 are supplied with fuel by pumps 49a, 49b operated by a linkage 53 from a pressureresponsive servo 56. The pressure applied to servos 54 and 56 is determined by a regulator valve 63 supplied with oil at constant pressure from a pump 67 and having a plunger 71, inward movement of which serves to increase the pressure applied to the servos 54 and 56. The latter are so arranged that, on increase of pressure, servo 54 closes valve 43 before servo 56 begins to operate the fuel pumps 49a, 49b, any further increase of oil pressure serving to increase the output of the fuel pumps. A throttle control valve 79 receiving oil from pump 67 has a throttle lever 81, movement of which serves progressively to increase the pressure applied to a pressure-responsive servo 74 for moving plunger 71 inwardly. A pressure-responsive servo 84 is also coupled to plunger 71. When the locomotive is under control of the throttle lever 81, a pipe 87 connected to the servo 84 is vented to the atmosphere, and the settings of the re-circulation valve 43 and the fuel pumps 49a, 49b are controlled by the throttle servo 74. When the throttle lever is moved to the closed or idling position, pressure on the throttle servo is removed and pressure, under control of the turbine speed governor, is applied via pipe 87 to the servo 84, the latter then controlling the settings of the re-circulation valve and the fuel pumps.
Patent GB-807772-A (GB)
Title: Improvements in or relating to seat-equipped tables
IPC: A47B83/02
Filed: 1956-07-09
Abstract: 807,772. Furniture combinations. CLACK, B. J., and CLACK, E. A. July 9, 1957 [July 9, 1956], No. 21188/56. Classes 52(2) and 52(3) A table has at least one seat rigidly carried by suspension means pivotally mounted in a horizontal axis on the table structure at a position above the seat so the seat can be swung inwardly and upwardly to be stowed beneath the table, the seat having a leg-unit which can be brought to an out-of-use position to permit the storage of the seat. The construction is shown in Figs. 1 and 3. The legs 11 assume a vertical position when the seat is swung beneath the table where the members 5 may be engaged by clips. A back rest may be provided, pivoted to the member 9.
Patent GB-308135-A (GB)
Title: Improvements in and relating to the manufacture of slippers, shoes and footwear
IPC: A43B3/10
Filed: 1928-07-24
Abstract: 308,135. Haldinstein, G. E., (trading as Haldinstein & Sons, P.). July 24, 1928. Drawings to Specification. Connecting uppers to insoles and soles. - In the manufacture. of a shoe or slipper wherein the upper is attached to a sole or insole before it is shaped or lasted, the upper, inside out, has its margin sewn to an inner sole. A sock to which a layer of felt is attached is sewn to the inner sole, and a shank and heel piece are inserted. The shoe is then turned right side out, a last is inserted, and the upper is hammered to the shape of the last. The shoe is then heeled, a quarter stiffener is inserted, and a sole is attached by sewing or cement.
Patent GB-616563-A (GB)
Title: An improved anti-friction coating for films
IPC: C08J7/046
Filed: 1946-07-17
Abstract: 616,563. Coated films. GENERAL ANILINE FILM CORPORATION. July 17, 1946, No. 21439. Convention date, Aug. 9, 1945. [Class 140] [Also in Group XX] The slippage and anti-static characteristic of sheets, films or foils of water insoluble, organic film-forming material is improved by treating the sheet on at least one surface with a solution of a monomeric, neutral, alkyl ester of silicic acid in a volatile solvent and subsequently removing the solvent. The esters of silicic acid used are of the formulae (R@O), (R2O), (R3O), (R4O) Si or (R@O), (R2O), SiO, where R1 to R4 each represent an alkyl group of from 1 to 5 carbon atoms. Examples of these esters are tetraethyl orthosilicate, trimethyl ethyl silicate, methyl triethyl orthosilicate and the diethyl ester of silicic acid. The treated sheet materials may be cellulose derivatives; polyvinyl chloride; copolymers of vinyl chloride and vinyl acetate, vinyl chloride and vinylidene chloride; polyamides; polyvinyl alcohol; polyvinyl acetaldehyde acetal resins; or partially hydrolysed acetate resins such as described in U.S.A. Specifications 1,939,422 and 2,036,092. An extensive list of solvents is given which includes solvent mixtures. The ester solution may be applied by dipping, spraying or brushing. Specification 581,751 is referred to.
Patent GB-1268586-A (GB)
Title: Releasable coupling arrangement
Inventor: MUELLER FRANK HIERONYMUS
IPC: F16D1/06
Filed: 1970-05-05
Abstract: 1,268,586. Shaft couplings. MUELLER CO. 5 May, 1970, No. 21585/70. Heading F2U. A shaft coupling comprises inner and outer sleeve members 10, 22 whose ends are provided with wedge shaped projections or dogs 56 brought into longitudinal engagement by a manually operable freely rotatable screwed collar 38 with an external thread 40 engaging an internal thread at the end of sleeve 22 and a split abutment ring 39 carried by sleeve 10. As shown the coupling is applied to a drill in which a shell cutter 14 is secured to a collar 26 at the end of sleeve 22 by threads 32 and held in position by an end ring 34 secured by bolts 36.
Patent GB-1305856-A (GB)
IPC: G01N30/93
Filed: 1971-04-19
Abstract: 1305856 Coating apparatus A B INSTRUMENTA 19 April 1971 [18 Feb 1970] 21585/71 Heading B2L Hand coating apparatus for applying a film of liquid to a row of plates having substantially the same width and thickness comprises a front guide bar 1 a rear control bar 2 defining the thickness of the layer to be deposited and lateral walls 3 which, in the coating position, overlap the edges of the plates to be coated, sealing strips 4 which are raised relatively to the front guide bar 1 and the rear control bar 2 so that they do not touch the plates at normal variation of thickness of the plates. Adjustable spacers 8 are provided which rest on the plates so that the height of the control bar 2 and hence the coating thickness can be adjusted.
Patent GB-669266-A (GB)
Title: Improvements in or relating to electric circuit-arrangements for television camera tubes
IPC: H04N5/228
Filed: 1950-09-01
Abstract: 669,266. Television. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 1, 1950 [Sept 3, 1949], No. 21617/50. Drawings to Specification. Class 40 (iii). [Also in Group XL (c)] The output signal from a television camera tube is derived from two electrodes producing voltages of opposite phase and is fed to a pushpull amplifier. As described, the voltages are obtained from equal resistors inserted in the leads to the mosaic plate and collector electrode respectively of an iconoscope tube. Unequal resistors may however be used when a tube employing an electron multiplier is used.
Patent GB-460773-A (GB)
Title: Improvements in methods of and apparatus for picture transmission
IPC: H01J31/32
Filed: 1935-07-30
Abstract: 460,773. Cathode - ray tubes. LIPPINCOTT, D. K. July 30, 1935, No. 21632. [Class 39 (i)] An optical image is projected on a photo-electric cathode 2, the emitted electrons being focused by electromagnets 19 on to an insulated target 6 to form a negative charge image thereon. The target is scanned by a beam from a gun 11, with scanning electrodes 12, 14 ; the beam causes secondary emission from the target to bring elementary areas of the target to an equilibrium value, the resulting current through the resistor 24 connected to the back plate 5 of the target giving the required signals. A mesh anode 15 collects the emitted secondaries. The cathode 2 and target 6 are off-set and are at an angle of 45‹ to the line M joining their centres, so that the picture is projected directly on the cathode and the gun 11 is at right-angles to the target. The target is formed of a thin sheet of mica or of a continuous film of magnesium oxide ; it is supported by the back plate 5. The velocity of the electrons from the cathode 2 is kept low so that they do not cause secondary emission.
Patent GB-645618-A (GB)
Title: Therapeutically active alkaloid preparation
IPC: A61K31/46
Filed: 1947-08-07
Abstract: A solid, uniform and stable preparation for the treatment of affections of the central nervous system is prepared by mixing assimilable forms of the alkaloids hyoscyamine, atropine and scopalamine in such preportions that the hyoscyamine is 75.5 to 95 per cent, the atropine 20.0 to 1.5 per cent and the scopalamine 5 to 0.5 per cent by weight of the total alkaloid content of the preparation.  Assimilable forms are the alkaloid salts with mineral acids such as hydrobromide, hydrochloride and sulphate or with organic acids, such as tartrate, acetate and lactate, so long as such salts are soluble in aqueous or alcoholic solution. The alkaloids may also be used per se.  A preferred composition comprises hyoscyamine hydrobromide, atropine sulphate and scopalamine hydrobromide.  Other therapeutic materials such as citric acid and ammonium chloride may be present.  An example is given of a tablet containing the alkaloids, milk sugar, sucrose, starch, acacia, talc and medicinal paraffin.
Patent GB-683879-A (GB)
Title: Improvements in or relating to devices for improving the error curves of induction meters having a number of driving parts
IPC: G01R11/36
Filed: 1951-09-14
Abstract: 683,879. Supply meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Sept. 14, 1951 [Oct. 6, 1950], No. 21677/51. Class 37. Relates to a compensating device for improving the error curve of polyphase meters on heavy loads. In the 3-phase, 2-element nieter shown, Fig. 1, the current flux emanating from current poles 15, 15<SP>1</SP> in the lower driving element 11 induces an E.M.F. in an auxiliary winding 18 and this drives a current through a winding 17 on an auxiliary pole 16 disposed between current poles 14, 14<SP>1</SP> in the upper driving element 10. The flux produced by the current in the winding 17 interacts with the flux generated by the current poles 14, 14<SP>1</SP> so that the total driving torque of the element 10 is increased to offset the braking or self-damping effects of the current fluxes at heavy loads. In a modification, Fig. 4, the current magnet in the lower driving element 11 is divided into two branches 41, 42 with branch 42 forming a low reluctance path for parasitic or interference fluxes generated in branch 41 which bears the winding 18. In a further modification, Fig. 2 (not shown), a 3-phase, 2-element meter contains two compensating devices so that each driving element exerts an increased torque on heavy loads. A 3-phase 3-element meter may similarly have three compensating devices or, Fig. 3 (not shown), one auxiliary pole only formed in the central driving element and bearing two separate windings in closed circuit, respectively, with windings in the upper and lower driving elements.
Patent GB-675588-A (GB)
Title: Improvements in or relating to a portable van structure for perishable products
IPC: B64D13/08
Filed: 1949-08-22
Abstract: 675,588. Receptacles detachable from aircraft. HODGES RESEARCH & DEVELOPMENT CO. Aug. 22, 1949 [Feb. 11, 1949], No. 21733/49. Class 4. [Also in Group XIII] One or more vans 10, 11, 12 having hollow walls containing an eutectic solution 16 and adjoining air passages 17, are assembled into an aeroplane fuselage and a portion of the cold air normally flowing around the fuselage during flight is directed by scoops 19, 20 into the passages 17 to cool the vans and freeze the eutectic. Each of the vans has an insulated outer layer 15 and the air passages 17 are controlled by valves 22. The outlet ends of the air passages have scoops 21 facing away from the direction of travel to cause a suction effect. After the entectic has been frozen the valves 22 are closed and the air passages 17 connected to vacuum producing means 25 by valves 28 to insulate the vans. The melting of the eutectic cools the vans after removal from the aeroplane or cold air or refrigerant may be circulated through the passages 17. The vans may be shaped to complete the fuselage of the aeroplane, and have doors 30 forming when closed continuations of the air flow passages and eutectic containing sections. Specification 642,271, [Group XIII], is referred to.