baber/WOPTO huggingface dataset:
Patent GB-540813-A (GB)
Title: Improvements in or relating to holders for articles
IPC: A47L13/512
Filed: 1940-08-12
Abstract: 540,813. Fastenings. KELLEMS PRODUCTS, Inc. Aug. 12, 1940, No. 12899. Convention date, Aug. 17, 1939. [Class 44] [Also in Group XIV] Gripping-devices 2 for the handles of brooms &c. 1, consisting of sleeves of stranded wire loops inter-woven to permit the sleeves to expand or contract radially, are supported from a metal base 3 secured to a support by screws. The base 3 is channelled at 4, Fig. 5, to accommodate the twisted ends of the wires. Hooks 24 for other articles may be stamped out of the base. In one modification, Fig. 6, the ends of the wires are clamped between annular parts of bracket members 15, 16. Similar clamping arrangements may be employed in attachments to horizontal surfaces. The wires may be looped through holes in a base plate 45, Fig. 10, and their free ends secured together by coupling members 46.
Patent GB-300516-A (GB)
Title: An improved mercury vapour trap
IPC: F04B37/02
Filed: 1927-05-13
Abstract: 300,516. Finch, G. I. May 13, 1927. Vacuum tubes.-Mercury vapour is absorbed in or prevented from access to evacuated wireless valves, lamps &c. by an alloy of two or more alkali metals, e.g. sodium and potassium, liquid at ordinary temperatures, with which it forms an amalgam. The connections C, F, to the pump and valve &c. are connected to the vessel A constituting the mercury trap by mercury-sealed joints D, G. The alloy may be poured through the tube F on to the trays J, K, L, overflowing over the bottom of the vessel. A small drop of alloy may be inserted in the valve &c. before sealing off. The surface is retained fresh by shaking the vessel or by " flashing," or the alloy may be agitated by iron paddles actuated magnetically or may be continuously agitated. During the early stages of evacuation, the trap may be bye-passed.
Patent GB-862961-A (GB)
Title: High speed mixers for solid materials in powder or granular form
IPC: B01F29/63
Filed: 1957-04-23
Abstract: 862,961. Batch mixing machines. MORITZ, J. April 23, 1957 [April 20, 1956], No. 12937/57. Class 86 A high speed mixer for powdered or granular materials comprises a container b, Fig. 1, rotatable about its central transverse axis c and provided with at least one internal plane partition a, all the edges except one of the or each partition being immovably connected throughout their lengths to the container wall or walls and the free edge of the or each partition is either curved or has a cut-out or cut-outs, as shown in Figs. 2A, 2B and 2C, such that when the container is rotated the material to be mixed will fall from the of each free edge in thin sheets, to facilitate the mixing. The container may be rectangular in cross-section instead of cylindrical. Partitions may be provided on opposite sides of the transverse axis and there may be opposed partitions on each side, as described with reference to Figs. 4 and 5 (not shown). The free edge of the partition may be provided with open tapered channels, as described with reference to Figs. 6 and 7 (not shown). In modifications, the container may be of crossshape or Y-shape in cross-section, the stem of the latter having discharge orifices and a partition disposed apposite the orifices. When cross-shaped, the container is provided with four partitions, at the intersections of the arms of the cross. In another modification the container 10b, Fig. 10, is rotatable about its longitudinal axis 10c and provided with longitudinal partitions 10a the free edges of which are cut-out or curved.
Patent GB-234282-A (GB)
Title: Improvements in and relating to gully covers
IPC: E03F5/046
Filed: 1924-05-27
Abstract: 234,282. Rogers, S. S., Broad & Co., Ltd., and Owen, J. May 27, 1924. Manhole covers.-Covers of the kind having a vertical inlet opening set in line with the kerb have the road-retaining bar A adjustable to suit the varying heights of kerb and channel. Ribs or corrugations D may be provided on the bar to arrest and direct the flow of water in the channel.
Patent GB-650990-A (GB)
Title: Improvements in or relating to the colouration of yarn or fabrics composed wholly orpartly of secondary or acetone-soluble cellulose acetate
Filed: 1948-06-10
Abstract: Fabrics of secondary cellulose acetate are dyed with an acid leuco compound of a vat dyestuff in the presence of 30 per cent or more of a water-soluble swelling agent at a temperature within the range 25 DEG  to 60 DEG  C. and for a time insufficient to cause saponification of the cellulose acetate.  The vat dyestuff may be reduced under acid conditions, or may be reduced under alkaline conditions and subsequently acidified.  In a modification, the fabric is padded with the acid leuco compound without the swelling agent and then padded with the swelling agent; this modification may be used where the acid leuco compound is unstable in the presence of the swelling agent.  In examples: (1) Caledon Jade Green XN is vatted with caustic soda and sodium hydrosulphite in presence of a dispersing agent, ethyl alcohol is added and the solution acidified with acetic acid-the solution is then used to dye cellulose acetate fabric at 30 DEG  C.; (2) Caledon Yellow Brown 3GS is similarly vatted, ethyl alcohol and ammonium thiocyanate added and the solution acidified with acetic acid-cellulose acetate is then dyed with this solution at 26 DEG  C.; (3) Caledon Dark Blue GS is reduced with sodium hydrosulphite in presence of sodium dinaphthylmethane-b ,b -disulphonate and a dispersing agent, ethyl alcohol is added and a cellulose acetate-cotton fabric dyed with the solution at 30 DEG  C.; (4) Caledon Red Violet 2RNS reduced under alkaline conditions is acidified, added to ethyl alcohol and padded on to a cellulose acetate-cotton fabric at 50 DEG  C.; (5) cellulose acetate fabric is mechanically impregnated with the dyebath of (3); and (6) Caledon Blue CGD vatted under alkaline conditions and acidified with acetic acid is padded on to a cellulose acetate-cotton fabric at 45 DEG  C. and the fabric is then run through a second padding mangle where it is impregnated with aqueous ethyl alcohol at 50-55 DEG  C. Specifications 341,408, 479,867, 517,751 and 622,676 are referred to.
Patent GB-905953-A (GB)
Title: Energy transfer circuits
IPC: H03K25/00
Filed: 1959-04-16
Abstract: 905,953. Electric digital to analogue converters. THOMPSON RAMO WOOLDRIDGE Inc. April 16, 1959 [Aug. 14, 1958], No. 13016/59. Class 40 (1). [Also in Groups XIX and XL (c)] In a circuit for converting digital signals to analogue signals, negative-going digit pulses applied to transistor Tb cause capacitor 21b to discharge into a storage capacitor 31 and so incremently increase the voltage across the latter capacitor. This voltage is applied through emitter followers 51, 52 to an output terminal and is also fed back through a rectifier 41b to bring the potential at the right-hand terminal of capacitor 21b up to the potential across the capacitor 31 so that each successive input pulse causes equal increments of voltage across capacitor 31. Positive-going digit pulses applied to transistor Ta effect equal decrements of voltage across capacitor 31 in a similar manner. In an alternative arrangement (Fig. 4, not shown), the transistors and semi-conductor rectifiers are replaced by thermionic valves.
Patent GB-241123-A (GB)
Title: An improved process for the production of urea
IPC: C07C273/04
Filed: 1925-05-19
Abstract: 241,123. Casale, L. Dec. 23, 1924, [Convention date]. Ammonium carbonate may be obtained as a byproduct in a process for the continuous production of urea from ammonia and carbon dioxide, in which the gaseous mixture obtained in the catalytic synthesis of ammonia, by means of apparatus such as that described in Specifications 185,179 and 193,789, [both in Class 1 (i), Chemical processes &c.], is caused to react with carbon dioxide while still under the influence of pressure and heat. A mixture of nitrogen and hydrogen under pressure passes from the tube 1 through a purifier 3 to the catalytic apparatus 5. The gaseous mixture leaving the chamber 5, containing a high percentage of ammonia at a temperature of about 250 C. and under a pressure of about 800 atmospheres, enters the chamber 7, into which compressed carbon dioxide is admitted through the tube 8. The temperature in the chamber 7 ranges between 150 C. and 200 C., and a catalyst, e.g. alumina, kaolin or silica, may be present. The urea condenses with the water formed at the same time in the lower part of the chamber 7 which may be cooled. The residual gases pass through a cooling apparatus 10 and enter a receptacle 11, where residual water, ammonium carbonate, and ammonia are collected. The uncombined hydrogen-nitrogen mixture which may contain some ammonia, is re-circulated through the apparatus by means of a pump 12.
Patent GB-1132165-A (GB)
Title: Digitally controlled vibrational seismic prospecting
Inventor: WATERS KENNETH HAROLD
IPC: G01V1/00
Filed: 1967-03-21
Abstract: 1,132,165. Seismic prospecting. CONTINENTAL OIL CO. 21 March, 1967 [22 June, 1966], No. 13113/67. Heading H4D. In a seismic survey system a digital computer controls a vibrator source and also the recording and processing of received seismic signals. In the Fig. 1 embodiment a digital representation of a desired frequency-swept seismic signal in core store 40 is converted at 44 to an analogue electrical signal for controlling seismic vibrator 22. The output signals of geophone array 30, optionally together with the analogue frequencysweep signal, are time-multiplexed and digitized at 54, 58 and the resulting series of digital values are passed to store 40 where they are stored such that seismic signal travel times are preserved through the physical location of the stored values, the storage, multiplexing and digitizing being synchronized by the computer clock 64. The stored information is then buffered out of core store 40 to rapid-access disc storage 80. Since travel times are preserved in the storage process, further received seismic signals obtained by repeated actuation of the source 22 may be readily composited with the stored information by addition of corresponding digital values for a given travel time, the values being recalled from disc storage 80, processed by the computer, and the composited signal being restored at 80. When compositing has been completed the information in disc storage 80 may be transferred to digital tape storage 82 for further processing (e.g. correlation).
Patent GB-720610-A (GB)
Title: Improvements in gas cleaning devices
IPC: B01D46/10
Filed: 1952-05-23
Abstract: 720,610. Agglutinated fibrous sheet materials. WINGFOOT CORPORATION. May 23, 1952 [Dec. 20, 1951], No. 13159/52. Drawings to Specification. Class 140. [Also in Group XXVIII] Glass fibre, metal wool, string or shredded paper forming a gas-filter mat (see Group XXVIII) is coated at least in part with solid polyethylene capable of developing an electrostatic charge. The mat is coated by dipping in a hot solution of polymer in toluene or xylene, withdrawing and drying at 158‹ F. to remove all traces of solvent. Alternatively powdered polyethylene is sprinkled on a mass of fibres which is then heated to melt the powder. Specification 677,795, [Group XXVIII], is referred to.
Patent GB-927058-A (GB)
Title: Improvements relating to motor vehicles with doors
IPC: B60J5/06
Filed: 1961-04-12
Abstract: 927,058. Vehicle stands. DAIMLER-BENZ A.G. April 12, 1961 [April 12, 1960], No. 13215/61. Class 79(3) [Also in Group XXXII] The substantially vertical hollow pivot tube 20, Fig. 9, for a single support arm 11 for an outwardly swingable motor vehicle door (see Group XXXII) passes through and is secured by a cone 59 in a longitudinal bearer 12 of the vehicle. and serves as a cylinder of a hydraulic jacking or supporting device. The cylinder is connected to a pressure-oil pipe 57 and houses a piston 58 shown also in a partly projected position 59, in broken lines. A sleeve 48, Fig. 7, also passing through the bearer 12 for supporting one end of a control lever 39 for the door 10, serves to receive a foot 49 for supporting the vehicle, or a jack.
Patent GB-133205-A (GB)
IPC: B64C3/18
Abstract: 133,205. Ayling, G. Nov. 6, 1918. Framework.-A strut &c. for aircraft is formed from a metal tube A encased in two or more strips of wood B which are butted or jointed together, and adapted, as by the provision of lips C, to receive fairing attachments D, E.
Patent GB-456154-A (GB)
Title: Improvements in, and relating to, permanent magnets
IPC: H04R9/02
Filed: 1935-05-04
Abstract: 456,154. Magnets. TURTON BROS. & MATTHEWS, Ltd., and THOMPSON, G., Wentworth Street, Sheffield. May 4, 1935, No. 13355. [Class 35] [See also Group XXXIX] The invention relates to permanent magnets, particularly for sound recording or reproducing apparatus of the type comprising outer members a, b, c and a central polepiece d with an air gap e, the parts being clamped together by means of a locating ring of non-magnetic material welded, soldered, riveted, screwed or otherwise secured to the underside of the upper member b and encircling and engaging the centre polepiece under tension applied by securing the centre polepiece to the lower member c, the necessary tension being obtained by providing the centre polepiece with an annular groove fitted with keying means protruding from the groove and abutting against an annular wall forming a boss of the locating ring. According to the invention, a self-retaining single split ring h is seated in the annular groove to constitute the key. The members b, c may be shouldered to retain the magnet a in position and instead of the screw f shown for attaching the members c, d, the central polepiece d may project through a hole in the lower member c, the end being riveted over. The orifice e in the upper member b is large enough to admit the passage of the centre polepiece with the assembled split ring, but the locating ring admits only the passage of the polepiece.
Patent GB-528349-A (GB)
Title: Improvements in containers of cardboard and the like material
IPC: B65D5/74
Filed: 1939-05-04
Abstract: 528,349. Cardboard &c. containers with pouring spouts. KAY BROS., Ltd., and DIXON, D. L. May 4, 1939, No. 13376. [Class 18] A sheet metal, cardboard &c. blank of the form shown is folded to form a container having a pouring spout constituted by .panels 10, 11, projections 13 serving to limit the opening of the spout. The base may be formed of gummed or tuck-in flaps. The container is for material in powder or granulated form, e.g., salt, corn, or bath salts..
Patent GB-318843-A (GB)
Title: Improvements relating to screw propellers
IPC: B63H1/12
Filed: 1928-05-07
Abstract: 318,843. Unislip Propeller Co., Ltd., and Kari, A. May 7, 1928. Screw propellers. - In a screw propeller the radial pitch increases from the root to the tip of the blade and the blades are of aerofoil section. The curvature of the leading edge h2 increases towards the tip, and the following edge j2 is shaped to maintain radial distribution of blade widths as in an elliptical or similar geometrical figure. The leading edge is dimensioned such that a point s, which is nine-tenths the perpendicular distance between tangents at the root and the tip, is set back three-eighths of the maximum width x, t, from the foremost point t. The blade may be rabed aft. Specification 226,321 is referred to.
Patent GB-500017-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/82
Filed: 1938-05-05
Abstract: 500,017. Cathode-ray tubes. LORENZ AKT.-GES., C. May 5, 1938, No. 13459. Convention date, May 5, 1937. [Class 39 (i)] The electrodes of an electron gun are pushfits in a glass tube 1 of uniform diameter, the tube 1 being fixed in the Braun tube radially by radial springs and axially by the electrode leads 12. The electrodesmounted inside the tube 1 are a Wehnelt cylinder 2, a suction anode 3, a lens electrode 4, a diaphragm electrode 5 and the anode 6. The electrode 7, forming part of the lens system, is constituted by a metal coating. An insulating or metallic body 8 carries the cathode 10. The tube 1 may be apertured to accommodate the leads to the individual electrodes. Specification 425,234 is referred to.
Patent GB-253104-A (GB)
Title: Improvements in or relating to liquid measuring devices
IPC: G01F19/00
Filed: 1926-05-28
Abstract: 253,104. Ferdinand, J. A. June 6, 1925, [Convention date]. Tilting or inverting bottle or vessel apparatus; measures of capacity.-A device for withdrawing a measured quantity of a liquid from a bottle or like vessel comprises a stopper A with two apertures C, E fitted with ball valves F, D, and a measuring-vessel H, the spoutlike extension I of which is thrust into the aperture C. The bottle having then been tilted to the position shown, air enters it through the aperture E and pipe G, while liquid enters the measuring-vessel H. When this is filled, its vent J is closed by a finger, and the vessel H is removed from the stopper. The stopper may have a shield B.
Patent GB-1483431-A (GB)
Title: Sheet advancing apparatus
IPC: B65H3/06
Filed: 1975-04-03
Abstract: 1483431 Feeding sheets XEROX CORP 3 April 1975 [12 April 1974] 13626/75 Heading B8R Sheets are separated from the top of a pile 38, Fig. 2, by two friction rollers 36, Figs. 2 and 3, each comprising an inner cylindrical member 84 of solid polyurethane and an extensible resilient sleeve 86 of gum rubber. The rollers are rotated in successively opposite directions by means of a cam 62, and while rotated opposite to feed direction are raised clear of the pile by means of a cam 64. The separated sheet passes up a surface 54 and is arrested and buckled by stops 58. When feed grippers on a chain reach the vicinity of the leading edge of the sheet, the stops are released and the sheet springs into the grippers, which carry it through a xerographic machine, the xerographic drum of which is mounted on the shaft 60 carrying the cams. The sleeve may have resilient and non-resilient portions.
Patent GB-354211-A (GB)
Title: Improvements in or relating to paper wrappers particularly for articles of confectionery
IPC: B32B15/12
Filed: 1930-05-03
Abstract: 354,211. Wrapping materials. WAXED-PAPERS, Ltd. and HOPE, A.R., Nunhead Lane, Peckham, London. May 3, 1930, No. 13688. [Classes 94 (i) and 94 (ii).] A wrapper, for confectionery, and of the type comprising a sheet of waxed paper having superposed thereon a separate piece of metal foil or the like so applied that a portion only of the waxed sheet is covered, is made in a continuous web for use in a wrapping machine, the separate wrappers being severed from the web as required. The foil is secured to.the paper by passing between heated rollers. The wrapper is applied so that the strip 11 of foil overlies the sides of the article and the uncovered portions of the waxed paper 10 extend beyond the ends ready for twisting as shown in Fig. 2.
Patent GB-812690-A (GB)
Title: New halogen-testanes and process for their manufacture
IPC: C07J1/00
Filed: 1955-05-12
Abstract: The invention comprises saturated and unsaturated 3,11,17-trioxygenated 9a -halogen testanes and functional derivatives thereof, particularly D 4 - 3 - oxo - 11b ,17b  - dihydroxy - 9a -halogentestenes, their 17a -methyl derivatives and 17-esters thereof; also a process for their preparation by treating a D 9(11)-3,17-dioxygenated testane or functional derivative thereof with a halohydrin-forming agent, e.g. a hypohalous acid or one of its salts, ethers, or esters, a haloacetamide, haloimide or haloamine, and if desired treating the resulting 9,11-halohydrin with a dehydrohalogenating agent and reacting the 9,11b -epoxide formed with a hydrohalic acid, after which hydroxy and/or oxo groups may be liberated or functionally converted.  Suitable dehydrohaloegnating agents are hydroxides or oxides of metals of Groups 1 and 2 of the Periodic System, e.g. silver oxide, also tertiary amines and aluminium oxide.  Specified functional derivatives include esters, ethers, acetals, ketals, their thio analogues, enol derivatives, hydrazones, and semicarbazones.  Subsequently the hydroxyl groups may be esterified, e.g. with acetic, trimethylacetic, propionic, valeric, enanthic, undecylenic, benzoic, phenylpropionic, cyclopentylpropionic and polycarboxylic acids, or etherified, e.g. with carbohydrates.  In examples: (1) D 4,9(11)-3-oxo-17b -propionyloxy-testadiene in t-butanol is treated with N-bromoacetamide and dilute H2SO4 giving D 4 - 3 - oxo - 11b  - hydroxy - 17b  - propionyloxy - 9a  - bromotestene, which is agitated in darkness in pyridine with dried silver oxide living D 4-3-oxo-17b -hydroxy- and 17b -propionyloxy - 9,11b  - oxido - testenes; treatment of the latter in dioxane with dilute HCl gives D 4 - 3 - oxo - 11b  - hydroxy - 17b  - propionyloxy - 9a  - chlorotestene, while HF gives the corresponding 9a -fluoro compound; the corresponding 17b -cyclopentylpropionoxy compounds are similarly prepared; (2) D 4,9(11)-3-oxo - 17b  - hydroxy - 17a  - methyltestadiene treated as in (1) yields D 4-3-oxo-11b ,17b -dihydroxy-17a -methyl-9a -bromotestene and subsequently the corresponding 9a -chloro and 9a -fluoro analogues.
Patent GB-559730-A (GB)
Title: Improvements in or relating to controls for aircraft
IPC: B64C25/22
Filed: 1942-10-01
Abstract: 559,730. Aircraft brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and HENRY, H. P. Oct. 1, 1942, No. 13806. [Class 4] An aircraft having a retractable undercarriage and fitted with both wheel brakes and dive brakes, is provided with a selector device actuated by movement of the undercarriage, or its operating means, to place a common control member into operative connection with the wheel brakes when the undercarriage is lowered and into operative connection with the dive brakes when the undercarriage is raised. As shown, a pneumatic valve 15 is for controlling the wheel brakes and a hydraulic valve 30 for controlling dive braking flaps 24 on the wings are connected by links 21, 33 respectively to points near the opposite ends of a curved lever 22. This lever has notched ends adapted to be engaged by pins 37, 38 bridging the forked ends of plungers 39, 40 spring mounted in fixed abutments 41, 42. A pin 46, connected by a Bowden cable to a thumb lever 52 mounted on the joystick 55, is movable along a slot 45 in the lever 22 by a link 48 connected to an arm 51 on the undercarriage. When the undercarriage is retracted as shown in full lines the pin 46 is brought opposite to the link 33 and simultaneously, by engaging the ends of the plunger 40, the latter is displaced to disengage the pin 38 from the notched end of the lever 22. A pull on the Bowden cable will then move the lever 22 about the pin 37 at its opposite end to actuate the valve 30 without affecting the valve 15. When the undercarriage is lowered the pin 46 is brought opposite the link 21 and the pin 37 is disengaged to enable the valve 15 to be actuated independently of the valve 30. Both valves are biassed to their "off" position, and the valve 15 is influenced. by a rudder bar 19 to render the application of the brakes on the two sides of the aircraft unequal to facilitate steering on the ground. In a modification both valves are actuated from a common source, a distributing valve actuated by the arm 51 directing the pressure fluid either to the wheel brakes or to the dive brakes. The Bowden cable may be replaced by a hydraulic transmission, both brakes may be actuated hydraulically, or the dive brakes may be actuated pneumatically or electrically. In the latter case a switching device controlling electromotors replaces the hydraulic control valve.