baber/WOPTO huggingface dataset:
Patent GB-675316-A (GB)
Title: Improvements relating to ion-exchange processes
Inventor: BLIGHT FRANK CHARLES
IPC: B01J49/00
Filed: 1950-01-20
Abstract: In a process for the removal of ammonia from crude water in which the water is passed through a bed of cation-exchange material having exchangeable sodium ions some of the water flowing through the bed is taken from a point in the bed upstream of, and separated by a short distance from, that at which the main body of water leaves the bed, so that there are two effluents, and regeneration is begun when ammonia appears in the first effluent, or the ammonia content therein begins to rise.  The presence or amount of ammonia in the first effluent is preferably determined colorimetrically e.g. with the aid of Nessler solution.  Since the main effluent, being ammonia-free, will give little or no coloration with Nessler solution a photo-electric device responsive to a difference in colour between the effluent treated with the reagent and the main effluent may advantageously be used to actuate a relay which in turn operates an alarm or valves by which the working run is stopped and regeneration of the bed begun.
Patent GB-942519-A (GB)
Title: Tetraureide greases
IPC: C07C275/40
Filed: 1962-01-17
Abstract: The invention comprises tetraureides of formula: R1NHCONHR111NHCONHRNHCONHR111 NHCONHR11 where R, R1 and R11 are C1-30 hydrocarbon radicals and R111 is a cyclic C6-30 hydrocarbon radical, and their production by heating together R1NH2, R11NH2, H2NRNH2 and R111(NCO)2. Specified R values are phenylene, diphenylene, ethylene, propylene, octylene and octadecylene; specified R1 and R11 values are phenyl, p-tolyl, benzyl, dodecyl, tetradecyl, hexadecyl and octadecyl; specified R111 values are divalent radicals derived from diphenylmethane, 3,31-dimethyl diphenylmethane, 3,31-bitolylene and m-xylylene.  The tetraureides are used to prepare grease compositions (see Divisions C3 and C5).ALSO:Grease compositions comprise an oil of lubricating viscosity, e.g. hexa-(4-methyl-2-pentoxy)-disiloxane, poly(methyl)siloxane, poly(methyl-phenyl) siloxane, and polyalkylene oxides such as are prepared by polymerising an alkylene oxide, e.g. propylene oxide, in the presence of water or an alcohol, e.g. ethanol; containing 5-50% of a tetraureide of formula:-R1NHCONHR111NHCONHRNHCONHR111 NHCONHR11 where R, R1 and R11 are C1- 30 hydrocarbon radicals and R111 is a cyclic C6- 30 hydrocarbon radical (see Division C2). The compositions may also contain other grease thickening agents, oiliness agents, extreme pressure agents, oxidation inhibitors, rust inhibitors, corrosion inhibitors, viscosity index improving agents and dyes.ALSO:Grease compositions comprise an oil of lubricating viscosity and 5-50% by weight of a tetraureide of formula R1NHCONHR111NHCONHRNHCONHR111 NHCONHR11, where R, R1 and R11 are C1-30 hydrocarbon radicals and R111 is a cyclic C6-30 hydrocarbon radical (see Division C2). Specified oils are naphthenic-base, paraffin-base and mixed base lubricating oils, other hydrocarbon lubricants, e.g. those derived from coal products, and synthetic oils, such as alkylene polymers (e.g. polymers of propylene and butylene and their mixtures), polyalkylene oxides, carboxylic esters (e.g. from acids such as adipic, azelaic, suberic, sebacic, fumaric, maleic and alkenyl succinic acids and alcohols such as butanol, hexanol, 2-ethylhexanol and pentaerythritol), liquid esters of phosphorus acids, alkyl benzenes, polyphenyls, alkyl biphenyl ethers, silicon compounds (e.g. tetraethyl silicate, tetraisopropyl silicate, hexa-(4-methyl-2-pentoxy) disiloxane, poly(methyl) siloxane and poly(methylphenyl)-siloxane), or combinations of these.
Patent GB-892567-A (GB)
Title: Improvements in or relating to waste heat boilers
IPC: F28G3/16
Filed: 1961-01-16
Abstract: 892,567. Cleaning heat-exchangers. METALLGESELLSCHAFT A.G. Jan. 16, 1961 [April 16, 1960], No. 1783/61. Class 99(2). [Also in Group XIII] A waste heat boiler heated by hydrocarbon gases and/or vapours from a catalytic cracker, is divided into two or more stages, each stage including not more than three banks of tubing through which the working fluid passes and is provided with a shot cleaning device effective to remove deposits due to hydrocarbons condensing on the tubes thereof. As shown in Fig. 1 the boiler comprises two stages 7, 8 respectively including banks 9a . . c and 10a . . c. Cracked gases and vapours at high temperature enter the top of the first stage and pass down each stage in turn. Each stage 7, 8 is provided with its own tube cleaning device 11, 12 which produces a rain of shot which may consist of steel pellets of a size between 3 and 6 mm. The pellets rebound from one tube to another knocking off the deposits of hydrocarbon condensing thereon as the gas temperature falls so that heat transfer efficiency is maintained. The shot is collected at the bottom of each stage and is blown back through a return gate 4 and pipes 3 to a separator 5 and thence via a delivery pipe 6 to the ejector plate. In a modification, the gases leaving the bottom of the first stage enter the second stage at the bottom, the greatest deposit being formed, therefore, on the uppermost bank of tubing in this stage which is that upon which the cleaning device acts most intensely and effectively.
Patent GB-413700-A (GB)
Title: Improvements in or relating to the manufacture of pots, cartons, and like receptacles of paper, cardboard, and the like
IPC: B31B1/74
Filed: 1933-01-20
Abstract: <PICT:0413700/III/1> <PICT:0413700/III/2> <PICT:0413700/III/3> <PICT:0413700/III/4> To render paper &c. cartons and the like o the kind consisting of a rolled blank provided with channelled metal end closures engaging over the beaded or plain ends of the tapered or cylindrical body portion, suitable for containing oils or fatty substances, the body portions 1, Figs. 3, 4, are treated interiorly or exteriorly or both with a proofing 10 of casein hardened with formalin and containing glycerine, the exterior being sometimes further proofed with thin sheet aluminium &c. and the joints within the channels of one or both of the end closures 3, 4 are sealed by means of tar pitch or asphalt 22, the p  longitudinal seam of the body being also if desired treated with this substance.  The pitch or asphalt is applied to the end or ends of the carton body by means of the apparatus shown in Fig. 5. The pitch &c. contained in a supply tank 23 and maintained molten by means of an electric immersion heater, is delivered as required on to an absorbent felt &c. pad 26 disposed within a ring 27 containing an electrical heating element, the ring being connected by a forked lever 29 with cam or other means for raising and lowering the pad in applying the coating to the ends of the bodies.  The carton bodies are held in ring members or dies 30 of which five may be provided, rotatable about their own axes and also about a central axis.  In the manufacturing operation the members 30 assume in turn positions in which (1) the bodies are inserted in the machine; (2) the sealing material 22 is applied to the ends; (3) the bases 4 are fitted; (4) the bases are clinched to the bodies, the beads 2 being formed simultaneously at the upper ends; and (5) the cartons are ejected from the machine.  The casein &c. proofing may be applied to the material of the carton body before manufacture, but is preferably applied to the formed body, the apparatus shown in Fig. 6 being used for proofing the interior.  In this the placing of the carton 1 in position causes levers 12, 13 to operate a valve 14 enabling the proofing liquid to flow from the supply tank 16 to the spraying nozzle 11; removal of the treated carton again operates the valve to direct the liquid through a pipe 21 into a sump from which it is returned to the supply tank by the action of a pump 18.
Patent GB-870716-A (GB)
Title: Improvements in or relating to means for driving separately a plurality of shafts mounted in a rotary frame
Inventor: JONES OWEN HERBERT
IPC: F16H37/00
Filed: 1959-01-19
Abstract: 870,716. Motor-driving; arrangements. BEASLEY FRENCH & CO. Ltd. Jan. 7, 1960 [Jan. 19, 1959], No. 1948/59. Class 35. [Also in Group XVI] A plurality of rotary shafts 20, 22, rotatably carried in a rotary frame 15 in turn rotatably carried in a stationary housing 11, are driven via respective drive transmission means 27, 30 and drive shafts 24, 25 by respective electric motors 34, 35 carried in fixed positions by the housing 11. As shown, the transmission means comprises idler gear trains rotatable on arms 16, 17 of the frame 15 which is carried by bearings 12 in the housing 11. The frame 15 is rotated by its own electric motor 18 via gearing 19. The invention is applicable to driving paper reels 21, 23 feeding a web into a printing machine.
Patent GB-573142-A (GB)
Title: Improvements in the metallising of ceramics
IPC: C04B37/02
Filed: 1942-02-13
Abstract: 573,142. Coating non-metallic surfaces with metals; silvering. GENERAL ELECTRIC CO., Ltd., and RANSLEY, C. E. Feb. 13, 1942, No. 1949. [Class 82 (ii)] Ceramic articles are metallized by coating them with a mixture of finely-divided copper, copper oxide or both and finely-divided silver, silver oxide or both and heating the coated article in a non-reducing atmosphere, e.g. air to temperature above the melting point of the copper-oxide-silver entectic (about 940‹ C.). The proportion of silver in the mixture greatly exceeds that of copper oxide, e.g. in a ratio of 20 to 1 and the temperature used is 1050‹ C. The coated ceramic may be subsequently coated with a layer of silver or silver oxide, or both, and heated to a temperature, e.g. 900‹ C., at which the pure silver sinters to the underlying.layer, but at which it does not melt.
Patent GB-1206755-A (GB)
Title: Devices for attaching skirting-boards to walls
Inventor: SEYMOUR-WALKER KAY JOHN
IPC: E04B2/82
Filed: 1967-01-13
Abstract: 1,206,755. Skirtings. NATIONAL RESEARCH DEVELOPMENT CORP. 5 Jan., 1968 [13 Jan., 1967], No. 1990/67. Headings E1B and E2B. [Also in Division H2] Skirting boards 9 are attached to a wall by clipping over opposite arms 1 of U-section strip metal clips placed in position on the panel 7 before the panel is placed on the support structure. The skirting boards each have flanges 13 and 14 secured by the clips. Each limb of the clip may include a loop to support electrical wiring. One limb of the clip may be flat against the panel when it is within the cavity of a cavity wall.
Patent GB-122850-A (GB)
Title: Improvements in Sluice Gates.
Inventor: SAMAIN PIERRE
IPC: E02B13/02
Filed: 1919-01-28
Abstract: 122,850. Samain, P. April 27, 1914, [Convention date]. Sluice gates.-A sluice gate comprises a hollow cylinder freely open at both ends and with a stepped surface formed of an enlargement A<1>, Fig. 1, or A<2>, Fig. 2, to balance the gate. The gate, Fig. 1, in the upper race may be raised by a cable B<1> with pointer G<1>, handle E<1>, and screw C<1>. The gate, Fig. 2, in the lower race, may have a table D<2> for weights. The Specification as open to inspection under Sect. 91 (3) (a) describes the sluice gate shown in Fig. 1 (Cancelled). This comprises a hollow body A open at both ends and of closed horizontal section, preferably circular, the gate resting on the end of a pipe E of corresponding section, which connects the upper and lower races of the stream &c. A packing F and guides K are provided. The gale and a counterweight Q are connected to opposite ends of a rocking beam M which is controlled by a lever U This subject-matter does not appear in the Specification as accepted.
Patent GB-643857-A (GB)
Title: Extruding apparatus for forming tubes of uniform internal diameter and having an external diameter variable along the length of the tube
IPC: B21C25/08
Filed: 1947-01-23
Abstract: 643,857. Extruding. COMPAGNIEGENERALE DU DURALUMIN ET DU CIUVRE. Jan. 23, 1947, No. 2090. Convention date, Feb. 15, 1946. [Class 83 (iv)] A press for extruding tubes having a uniform internal diameter and an external diameter varying along the length of the tube comprises a circular die 10, and a mandrel having a conical part 4 adapted to be advanced through the die as extrusion proceeds, thereby causing an increase in the wall thickness of the tube which is expanded to a constant internal diameter by a cylindrical end portion 5 of the mandrel. The inner end of the mandrel is screwed into a piercing ram or mandrel holder 6 extending through a hollow pressing ram 7 or, alternatively may be fixed to the pressing ram. An oppositely tapered portion 3 facilitates the extraction of the mandrel from the residue of the billet.
Patent GB-1346166-A (GB)
Title: Torque applying devices
IPC: B25B13/46
Filed: 1973-01-15
Abstract: 1346166 Socket wrenches LITTON INDUSTRIES Inc 15 Jan 1973 [20 Sept 1972] 2105/73 Heading B3W A torque applying wrench has a driving element with an extension 14 for detachable locking engagement with a driven element, such as a socket, the driving element has a handactuable detent mechanism comprising an actuating element 32, Figs. 1 and 2, in the form of an elongate spring, and a detent element 16, the spring is movable to apply a camming force to the detent element to retract, it, also the spring allows the detent member to be retracted by a force thereon, the force not being exerted by the spring. The spring engages in an oblique slot in the detent element such that downward pressure on button 18 and thus sleeve 22 and leaf spring 32 causes the detent member to be moved inwardly. During this operation the lower end of the spring 34 pivots about protrusion 26 and due to its short length is rigid. If a socket is removed from the extension manually then the spring pivots about protrusion 28 which due to the length of spring involved is flexible. The embodiment of Fig. 4 operates similarly although spring 32 is replaced by rod spring 52.
Patent GB-208411-A (GB)
Title: Improvements in track sanding devices for tramway cars and like vehicles
IPC: B61C15/10
Filed: 1923-01-24
Abstract: 208,411. Curry, T. Jan. 24, 1923. Sand, distributing on wheel tracks.-Means for operating a sand valve at the rear of a tramcar or the like from the front of the vehicle comprise a slidable rod i in a bracket j<1> which coacts at one end with a lever p, on a sanding shaft h and carries at the other end a pulley g over which passes a cable c held by a hook j at one end, the other end passing over a guide pulley or pulleys to a handle e normally held on a hook f; a spring m is kept in compression by a pin n on the rod to actuate the rod on the release of the handle e. The spring may be held in tension and according to the Provisional Specification may be replaced by a pivoted weighted arm connected with the slidable rod.
Patent GB-592628-A (GB)
Title: Improvements in or relating to modulation detector circuits for angle-modulated oscillations
IPC: H03D5/00
Filed: 1945-01-27
Abstract: 592,628. Valve receiving circuits ; frequency and phase modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 27, 1945, No. 2164. Convention date, Jan. 27, 1944. [Class 40 (v)] A detector circuit for angle-modulated oscillations comprises an electron discharge tube having at least a control electrode, anode and cathode arranged to operate as a limiter, and having a reactive impedance in its space current path, so arranged that voltage variations are developed across the impedance corresponding to the angle-modulations and rectifier in shunt with the impedance which produces a rectified version of the variations across its load impedance. As shown, applied to a F.M.-A.M. receiver, F.M. waves received at 1 and A.M. waves received at 2 are selectively fed by switches 4, 5 through a R.F. amplifier 3 and frequency changer 6 to the I.F. amplifier 7, the output of which includes a circuit 8 tuned to the mean I.F. for the F.M. waves, e.g. 4.3 Mc., in series with a circuit 9 tuned to the I.F., e.g. 455 kc., for A.M. reception. The circuits 8, 9 are coupled to correspondingly tuned circuits 22, 23 connected in series with a resistor 24 in the grid circuit of the double-diode-triode 10. For A.M. reception, switches 19 and 28 are closed. Switch 28 short-circuits resistor 24 and applies a suitable bias to the grid 12. Switch 19 applies the full H.T. to the anode 13 so that the triode section of the tube 10'functions as a class A amplifier, the inductance 16 in the cathode lead acting as the output load and producing degeneration so that the gain is unity. The diode anodes 14, 15 rectify the signal, the demodulated voltages appearing across the diode load resistors 32, 34 being applied respectively to the audio-frequency amplifier and to the A.V.C. line 37 which acts on the stages 3, 6, 7. A single diode, however, may be used for both these functions. For F.M. reception, switch 28 is opened to disconnect the grid biassing source and insert the series resistance 24 in the grid circuit, and switch 19 is opened to insert a resistance 17 in the anode lead whereby the triode saturates at low input voltages. The plate current is thus substantially constant so that the voltage across the inductor 16 in the cathode lead follows the frequency variations of the input. The limiter resistance-capacity network 24, 27 prevents undesired amplitude variations in the F.M. input from appearing across the inductor. 16 which thus functions as a discriminator. The voltage variations across inductor 16 are rectified by the diode 14 as for A.M. and passed to the A.F. stage. The A.V.C. circuit 37 is rendered inoperative automatically since input amplitude variations are not repeated across the cathode load 16. The inductor 16 may be replaced by suitable network, e.g. combinations of series and parallel resonant circuits, if a linear impedance-frequency response therefor is required.
Patent GB-1046861-A (GB)
Title: Improvements in and relating to scaffolding
Inventor: MAGGS WILLIAM FARNHAM
IPC: E04G7/02
Filed: 1963-01-17
Abstract: 1,046,861. Scaffolding; clamps. ACROW (ENGINEERS) Ltd. Jan. 14, 1964 [Jan. 17, 1963], No. 2172/63. Headings E1S and E2B. Scaffolding comprises uprights 2 connected to horizontal frames 6 by clamps 12 adjustable along the uprights, blocks being welded to the uprights to locate the clamps. Each frame consists of two longitudinal members connected by crossbars 14 and having hooks at the ends for engaging in sockets 28, Fig. 4, on the clamps. Each upright consists of sections connected by sockets 32. The clamp 12 comprises a pivoted jaw 20 and a pivoted bolt 22.
Patent GB-814712-A (GB)
Title: Manufacture of new polyhydrophenanthrene compounds
IPC: C07D317/72
Filed: 1955-07-29
Abstract: The invention comprises polyhydrophenanthrene compounds of the general formula <FORM:0814712/IV (b)/1> wherein R1 represents a free or ketalized oxo group, R2 represents a hydroxy or acyloxy group, and Y represents a group of the formula <FORM:0814712/IV (b)/2> or -C­CH, and in which there is a double bond in the 4,5-position in the case where R1 represents a free oxo group, or in the 5,6-position in the case where R1 is a ketalized oxo group.  The compounds may be prepared by treating a compound of the formula <FORM:0814712/IV (b)/3> wherein R1 represents a ketalized oxo group and R2 has the above significance, with a compound of the formula X-CH2-Y, wherein Y has the above significance and X represents a reactive esterified hydroxyl group, in the presence of an alkaline condensing agent and, if desired, liberating the ketalized oxo group in the 7-position. The group R2 may be formyloxy, acetoxy or propionyloxy group.  The group X may represent a halogen atom such as bromine or iodine or a hydroxyl group esterified with an aliphatic or aromatic sulphonic acid such as methane or p-toluene sulphonic acid.  Suitable alkaline condensing agents are alkali metal alcoholates, amides or hydrides, and quaternary ammonium bases such as benzyltrimethylammonium hydroxide.  In the examples 2 : 2-diallyl-, 2 : 2-dipropargyl-, and 2 : 2-dimethyallyl - 4b - methyl - 7 - ethylenedioxy-1 : 2 : 3 : 4 : 4aa  : 4b : 5 : 6 : 7 : 8 : 10 : 10a b -dodecahydrophenanthrene - 1 - one - 4b  - ol and 2 : 2-diallyl - 4b - acetoxy - 4b - methyl - 7 - ethylene - dioxy - 1 : 2 : 3 : 4 : 4aa  : 4b : 5 : 6 : 7 : 8 : 10 : 10a b -dodecahydrophenanthrene-1-one are prepared by the method referred to above.  The last compound is also prepared by acetylating the corresponding 4-hydroxy compound.  2 : 2-Diallyl-, 2 : 2-dipropargyl- and 2 : 2-dimethyallyl-4b -methyl-1 : 2 : 3 : 4 : 4aa : 4b : 5 : 6 : 7 : 9 : 10 : 10a b  - dodecahydrophenanthrene - 1 : 7-dione - 4b  - ol and 2 : 2 - diallyl - 4b  - acetoxy-4b  - acetoxy - 4bb  - methyl - 1 : 2 : 3 : 4 : 4aa  : 4b : 5 : 6 : 7 : 9 : 10 : 10a b  - dodecaphenanthrene-1 : 7-dione are prepared by liberating the keto group in the corresponding 7-ethylenedioxy compounds.  2 : 2 - Diallyl - 4b  - acetoxy - 4bb  - methyl-1 : 2 : 3 : 4 : 4aa  : 4b : 5 : 6 : 7 : 9 : 10 : 10a b -dodecahydrophenanthrene-1 : 7-dione is prepared by acetylating the corresponding 4-hydroxy compound.
Patent GB-104014-A (GB)
Title: Improvements in and relating to Trucks for Shell Drying Ovens.
Inventor: HALL ISAIAH
IPC: F26B25/06
Filed: 1916-02-15
Abstract: 104,014. Hall, I. Feb. 15, 1916. Tram carriages.-In a truck for use in shell drying ovens, the supports and spacing-members are adjustable, so that different sizes of shells can be accommodated. A framework c is built on to the body of the truck, and the supports g and spacing-members h are carried by cross-bars e, i respectively. The supports are preferably anglebars cut away on one side at both ends to form extending lips, which fit into inclined slots in the bars e. The spacing-members consist of rods fitting into notches in the bars i.
Patent GB-564066-A (GB)
Title: Improved cam-controlled electric timing device
IPC: G05B19/02
Filed: 1943-02-10
Abstract: 564,066. Actuation of switches. LONDEX, Ltd., BROWN, W. S. F., and MARTIN, B. Feb. 10, 1943, No. 2235. [Class 38 (v)] A timing switch has a contact 7 co-operating with a revolving involute cam 3, having a rest position adjusted by a viewable involute cam 8,. its shaft 4 being driven by a constantspeed electric motor 5. The use of involute cams ensures that the duration of the timing periods is in proportion to the setting of the control cam. In the example, the circuit controlled is that of a relay 2 controlling a main circuit 1, and, to prevent sparking at the contacts 3, 7 other contacts 13, 14 in series are arranged to be opened in advance of the opening of 3, 7 by a cam 16 on shaft 4. The cam 3 is shown as current carrying but it may be made of insulating material and operate a contact co-acting with contact 7. Additional cams may be fitted on the shaft so that this shaft is stopped after a predetermined number of revolutions in such a position that, when started again, it attains its full constant speed before the operating cam acts on the moving contact.
Patent GB-599498-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/067
Filed: 1945-01-29
Abstract: 599,498. Discharge lamps. LUMALAMPAN AKTIEBOLAG. Jan. 29, 1945, No. 2236. Convention date, July 12, 1943. [Class 39 (i)] In a discharge device with gas and/or vapour filling, especially a fluorescent lamp, the electrodes consist of coiled or coiled coil filaments 4 and are activated by an alkaline earth metal compound in the form of a coating applied solely at the points 3, 5 where the filaments 4 are secured to the leading-in wires 2, G, and the coating is supported on discs, bowls, or sleeves 8, 9 ; the electrodes 4 are directly heated at least during starting, but may be directly heated or self-heated during operation. In addition, the fastened ends of the electrodes 4 may be wound with a metal netting or thin coiled wire if relatively large quantities of emissive substance are used. The inside of the envelope may be provided with a fluorescent coating and the filling is mercury and a suitable gas mixture. Specification 434,276 is referred to. The Specification as open to inspection under Sect. 91 describes a modified form in which the supports 8, 9, are dispensed with. This subjectmatter does not appear in the Specification as accepted.