baber/WOPTO huggingface dataset:
Patent GB-1281331-A (GB)
Title: Method of radio transmission of signals unaffected by interference
Inventor: BOELKOW LUDWIG
IPC: H04K3/00
Filed: 1962-09-20
Abstract: 1281331 Radio signalling L BOLKOW 20 Sept 1962 [21 Sept 1961] 35920/62 Heading H4L A method of radio transmission of signals, unaffected by interference, comprises generating at the transmission station a wide band noise of approximately constant power ratio per frequency interval, from which at least two frequency bands are selected, of which, in order to generate a signal content, one frequency band is stopped and replaced by a frequency band of the same power distribution correlated with the other frequency band, so that the noise to be emitted to the receiving station also has an approximately constant power ratio per frequency interval. The method may be applied to transmitting command signals to a guided missile. In the transmitter shown in Fig. 3 a noise generator 1 supplies noise, extending for example from 10 to 25 Mc/s, to a filter 2 which rejects two spaced bands centred on frequencies f 1  and f 3  and having a width of 4 Mc/s for example; the rejected bands pass to terminals of order transmitters 9 and 10, and the noise, less the rejected bands, is passed on to a filter 3. The frequency band centred on frequency f 2 , which is midway between f 1  and f 3 , is taken wattless from unit 2 and fed to the converter 5 where it is transposed to frequency bands f 1  and f 3  by a signal from a local oscillator 6 operating at frequency f 2 -f 1 . The outputs from converter 5 are fed direct and through phase inverters 13 and 14 to terminals of the order transmitters 9 and 10. Each order transmitter has three positions and passes on to unit 3 either the original band f 1  or f 3  abstracted by unit 2 (zero signal) or a transposed band f 2  (positive signal) or a transposed and phase-inverted band f 2  (negative signal); in each case the output of unit 3 is a noise spectrum covering the whole range of noise generator 1, and this output is passed to the transmitter output stage 4 and the aerial. At the receiver, Fig. 4 (not shown), the three bands f 1 , f 2  and f 3  are separated by a filter, and bands f 1  and f 3  are transposed to frequency f 2  by a local oscillator and mixers. The local oscillator must be in phase with that at the transmitter, and in the case of missile control the synchronism can be established before launching. The transposed bands f 1  and f 3  are then compared with band f 2  in two correlator units, which may comprise simple multipliers and low-pass filters, to recover the two command signals chosen by units 9 and 10. In a modification, Figs. 9 and 10 (not shown), the local oscillators at the receiver and transmitter are not synchronized and differ in frequency by an amount #f. Only two commands, instead of three, can be sent on each channel, and the transmitter is the same except for the omission of phase-inverter units 13 and 14. The receiver is the same except that the correlator units include filters tuned to frequency #f instead of low-pass filters.
Patent GB-1382232-A (GB)
Title: Process for the recovery of selenium from waste gas
IPC: B01D53/46
Filed: 1973-07-27
Abstract: 1382232 Selenium from waste gases ASAHI GLASS CO Ltd 27 July 1973 35930/73 Heading C1A Selenium is obtained from waste combustion gases by treating the gases with an aqueous absorbent comprising an alkali metal sulphite and/or bisulphite thus absorbing the selenium component as selenite and humidifying the gases, passing the treated gases through a glass fibre filter and adding acid to the solution obtained from the first and second steps to precipitate elemental selenium. The concentration of absorbent in the solution is in the range 0À1 to 10 wt. per cent. If desired the sulphite/bisulphite may be produced in the absorber from an alkali-metal hydroxide or carbonate and SO 2  present in the waste combustion gas. The temperature of the waste gas is decreased to 50-90‹ C. and its relative humidity increased to 110% or less, so that on passage through the glass fibre filter water condenses out and any sulphur oxides in the gas dissolve in the condensate. The pH of the condensate and absorbent is adjusted to 1-3 by addition of, e.g. sulphuric acid to precipitate selenium.
Patent GB-1003031-A (GB)
Title: Improvements in vacuum forming of shaped articles
Inventor: HINTON JAMES JONES
IPC: B29C51/42
Filed: 1960-10-21
Abstract: 1,003,031. Vacuum forming. DUNLOP RUBBER CO. Ltd. Oct. 5, 1961 [Oct. 5, 1960; Jan. 19, 1961], Nos. 36090/60 and 2150/61. Heading B5A. In the vacuum forming of a large thermoplastic sheet, the pressure on the upper surface thereof is reduced as it softens so that it is retained in substantially planar configuration. Theremoplastic sheet 1 is gripped between frame 4, 5 and maintained by elastomeric strip 8 in sealing contact with vertically reciprocable box 10 as it is heated from above and below, by electrical elements arrayed in overlapping relationship within box 10 and lower heating unit 17, whilst the box 10 is evacuated to counteract any sagging tendencies of the sheet 1 until a drop in pressure of the order of the sheet weight/unit length is attained. The lower heating unit is removed and shaping former 22 raised to sealingly engage lower frame member 5 whereupon, after removal of the box 10, air is withdrawn through holes 25 in the former 22 to mould sheet 1 into contact with the surface thereof. The sealing strip 7 of frame 4, 5 may be retained by adhesive within a groove therein and may be of V-section. Plasticized or unplasticized vinyl resins, polyethylene and polypropylene and polyacrylates may be formed by the method into ship's hulls, dishes, buckets, plates and ashtrays. The seal 8 may be of silicone rubber, polyurethane or neoprene rubber. Specification 972,823 is referred to.
Patent GB-972609-A (GB)
Title: Improvements in or relating to the catalytic decomposition of peroxides
IPC: C07D301/14
Filed: 1962-09-21
Abstract: Aliphatic peroxy acids, possibly containing hydrogen peroxide, may be decomposed in liquid media by the catalytic action of a platinum group metal i.e. Pt, Pd, Ru, Rh, Ir or Os, or a mixture thereof, supported on carbon, alumina, BaSO4, asbestos or kieselguhr. Preferably platinum supported on carbon powder is used. Of the total catalyst and support 0.1-10% by weight, preferably 0.2-8%, should be active catalytic metal.  The support may be in the form of granules, powder (preferably), pellets or spheres.  The reaction temperature, which must be in the liquid range of the mixture, is preferably low, e.g. room temperature, and the pressure may be atmospheric.  The catalytic effect of platinum group metals, supported on carbon powder and on alumina pellets, on solutions of hydrogen peroxide in dilute hydrochloric acid, peracetic acid in water, peracetic acid in epoxy soybean oil and hydrogen peroxide with peracetic acid in these solutions is illustrated.ALSO:The decomposition of peracetic acid, or of hydrogen peroxide together with peracetic acid, present as a contaminant in epoxy soybean oil is effected by the catalytic action of a platinum group metal supported on a finely-divided carrier.
Patent GB-1431317-A (GB)
Title: Hydrophilic polymers of ethylene
IPC: C08F8/34
Filed: 1973-07-30
Abstract: 1431317 Hydrophilic ethylene copolymers SNAMPROGETTI SpA 30 July 1973 [31 July 1972] 36255/73 Heading C3P Hydrophilic ethylene copolymers having a contact angle of less than 120 degrees may be prepared by reacting sulphuric acid or alkaline potassium permanganate solution with a copolymer of ethylene with a minor proportion of a comonomer having at least two carbon to carbon double bonds, the copolymer containing 0À1 to 20 centres of unsaturation per 1000 carbon atoms of the polymer chain. The polymer may be a copolymer of ethylene with a minor proportion of butadiene. The products are receptive to adhesives, dyes and metals, and in the form of fibrils may be dispersed in water together with cellulose fibrils in the manufacture of paper. In examples ethylene/butadiene copolymers in the forms of films and fibrils are treated with sulphuric acid or alkaline potassium permanganate solution.
Patent GB-406963-A (GB)
Title: Process for the treatment with hydrogenating gases of distillable carbonaceous materials
IPC: C10G1/08
Filed: 1932-09-08
Abstract: The treatment with hydrogenating gases of carbonaceous materials under pressure and at 250--700 DEG  C. to obtain hydrocarbons is carried out in the presence of catalysts comprising halogen compounds, other than iodine compounds, of silver, copper, titanium, tin, chromium, manganese, nickel or cobalt together with sulphides of metals of Groups 5 and 6 of the periodic system or of nickel or cobalt.  Oxides, hydroxides, sulphides or other compounds of other metals may also be present particularly oxides, hydroxides or sulphides of copper, silver, zinc, tin, cadmium, manganese, uranium, rhenium, nickel, cobalt, lithium, magnesium or aluminium.  Elementary silicon and nitrides, phosphides, borides, arsenides and selenides may also be present. Carrier substances having a dispersive and catalytic action, e.g. active carbon, silica gel, pumice stone or porous sherds of burnt fire clay may also be employed.  The catalysts may be ground to colloidal fineness and may be impregnated on the carbonaceous materials.  Vapours of a middle oil are passed at 440 DEG  C. and 200 atmospheres pressure over a catalyst obtained by mixing 70 parts of tungsten sulphide with 30 parts of manganese bromide.  Titanium bromide, cobalt chloride or chromium bromide are also specified.ALSO:The treatment with hydrogenating gases of organic substances containing oxygen or sulphur, such as phenol or cresols, to obtain hydrocarbons, is carried out under pressure and between 250--700 DEG  C. in the presence of catalysts comprising halogen compounds, other than iodine compounds, of silver, copper, titanium, tin, chromium, manganese, nickel or cobalt together with sulphides of metals of the fifth or sixth periodic group or of nickel or cobalt. Oxides, hydroxides, sulphides or other compounds of other metals may also be present particularly oxides, hydroxides or sulphides of copper, silver, zinc, tin, cadmium, manganese, uranium, rhenium, nickel, cobalt, lithium, magnesium or aluminium. Elementary silicon and nitrides, phosphides, borides, arsenides and selenides may also be present.  Carrier substances having a dispersive and catalytic action, e.g. active carbon, silica gel, pumice stone or porous sherds of burnt fire clay may also be employed.  The catalysts may be ground to colloidal fineness and may be impregnated on the carbonaceous materials.
Patent GB-1271574-A (GB)
Title: Improvements in and relating to nuclear fuel elements
Inventor: DIEUMEGARD MAX
IPC: G21C3/04
Filed: 1969-07-18
Abstract: 1,271,574. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 18 July, 1969 [23 July, 1968], No. 36342/69. Heading G6C. A fuel element has a vent in the form of a tube providing a restricted passage for the removal of fission gas, the tube being disposed and terminating at one end in a chamber which will surmount the portion of the cladding which will be uppermost when the fuel element is in its operative position, the chamber having in its portion which will be lowermost discharge orifices for fission gases leaving the element. In the embodiment shown, the vent is a filled tube 10 housed within an upper chamber 6 of the element, being wound helically on itself with its lower end 13 passing through a plate 4 which separates the chamber 6 from an intermediate chamber 7 housing a stack of fuel pellets 9. The tube 10 is formed of corrosion-resistant steel and is filled with a compact but porous material, preferably MgO. On leaving the tube 10, the fission gases escape through orifices 14 near the bottom of the chamber 6. The tube 10 produces a considerable head loss during passage of the fission gases and consequently the pressure within the cladding 1 is greater than that of the external medium, e.g. liquid sodium coolant. As a result, the medium does not enter the cladding through the orifices 14. A filter 15, e.g. a sintered metal disc, protects the end 13 of the tube 10 from deposits and the condensation of certain fission products, e.g. Cs. A chamber 8 in the lower portion of the element, i.e. its coolest region, traps condensable fission products, e.g. Cs, Rb and Te. In place of the filled tube 10, a crushed or extruded capillary tube may be used.
Patent GB-348121-A (GB)
Title: Improvements in pattern control mechanism for looms
IPC: D03C15/00
Filed: 1930-01-07
Abstract: 348,121. Jacquard pattern chains. BARKER, G. G., 59, Chancery Lane, London.-(Heywood-Wakefield Co. ; 209, Washington Street, Boston, U.S.A.) Jan. 7, 1930, No. 36352. Divided on 346,347. [Class 142 (i).] The cards 6 are secured by eyelets 7 in the grooved holders 1 which are permanently linked together. The sprockets 2 are hollow and the sprocket faces and the holders are perforated as shown. Specification 346,347 is referred to.
Patent GB-619429-A (GB)
Title: Improvements in variable speed power transmission
IPC: A47B57/40
Filed: 1946-12-10
Abstract: 619,429. Change speed gear. FORD MOTOR CO., Ltd. Dec. 10, 1946, No. 36407. Convention date, Dec. 29, 1945. [Class 80 (ii)] A speed responsive valve controlling the flow of pressure fluid to planetary change speed gear selector clutches has its action modulated in accordance with the load. The change speed gear described in Specification 615,175 is modified by the provision of a pressure relief valve 37 on the fluid pump 33, the action of the valve being modified by the enclosure of the spring 38 in an expansible bellows chamber 39 which communicates with the engine manifold. This results in the pressure of the fluid being proportioned to the load, the modified pressure being applied to the end of the valve 55 through the passages 48, 67 and a groove 68 to oppose the centrifugal action of the weights 56. By this means the conditions of the change of ratio are proportioned to vehicle speed and engine torque.
Patent GB-1115306-A (GB)
Title: Release coating composition
IPC: C09J7/22
Filed: 1965-08-25
Abstract: A release composition for pressure-sensitive adhesive tape comprises a release agent copolymer of stearyl methacrylate and acrylonitrile in proportions ranging from 50 parts by weight of stearyl methacrylate and 50 parts by weight of acrylonitrile to 80 parts by weight of stearyl methacrylate and 20 parts by weight of acrylonitrile.  Stearyl methacrylate means octadecyl methacrylate or octadecyl methacrylate containing higher alkyl methacrylate having at least 12 carbon atoms and consisting predominantly of octadecyl methacrylate.ALSO:A laminate comprises a flexible, substantially non-porous backing sheet and a release coating on at least one surface thereof, said coating comprising a release agent copolymer of stearyl methacrylate and acrylonitrile in proportions within the range from 50 parts by weight of stearyl mechacrylate and 50 parts by weight of acrylonitrile to 80 parts by weight of stearyl mechacrylate and 20 parts by weight of acrylonitrile.  Strearyl methacrylate means octadecyl mechacrylate or octadecyl methacrylate containing higher alkyl methacrylates having at least 12 carbon atoms and consisting predominantly of octadecyl mechacrylate.  Coating may be by a print roll technique or by knife coating.  Solvents are removed by passage through a circulating air oven or oven steam heated cams.  Solvents may be aromatic hydrocarbons, ketones and esters and may include a proportion of aliphatic or napthenic hydrocarbons.  The coating may be applied at 0.001 to 0.02 ounces per square yard to one or both surfaces of the backing.  In the latter case the other surface may be coated with a pressure sensitive adhesive.  An embodiment described has the release coating on one surface while on the other surface are successively a primer coating, a first adhesive coating, a layer of glass yarns embedded in a saturating adhesive coating and a final pressure-sensitive adhesive coating.
Patent GB-1438120-A (GB)
Title: Removal of nitrogen oxides from flue gas
IPC: B01D53/60
Filed: 1973-08-01
Abstract: 1438120 Gas purification EXXON RESEARCH & ENG CO 1 Aug 1973 [1 Sept 1972] 36530/73 Heading C1A Nitrogen oxides may be removed from a gas stream by adding ammonia to the stream to provide at least 0À5 mole of ammonia per mole of NO x  and contacting the resultant stream under oxidizing conditions and at a gas inlet temperature of from 600‹ to 950‹ F. with a solid contact mass comprising at least one non-noble transition metal or compound thereof disposed on a refractory porous carrier having a surface area of at least 40 m.<SP>2</SP>/gram. The contact-mass may comprise copper or ferric oxide, supported on alumina, silica or alumina-silica. Other transition metal oxides which may be used include oxides of vanadium, chromium, molybdenum, tungsten, manganese, cobalt and nickel. The contact mass may be regnerated by treating with air or flue gas containing more than the usual amount of oxygen, or by reduction with hydrogen, carbon monoxide, methane, ethane, propane, butane, hexane or decane, mixed if desired with steam.
Patent GB-965420-A (GB)
Title: Apparatus for dispensing measured quantities of fuel oil
IPC: G01F3/38
Filed: 1960-10-28
Abstract: 965,420. Discharging liquids by direct liquid pressure. K. C. HANSEN, and H. R. HANSEN. Oct. 28, 1960 [Oct. 28, 1959], No. 37190/60. Heading F1R. In an apparatus for dispensing measured quantities of fuel oil, using water under pressure, solenoid-actuated valves for controlling the inflow of oil and the inflow and outflow of water are controlled by a float 11, which floats on water but sinks in oil. When chamber 10 is full of oil, float 11 engages shoulder 14 on rod 12 to operate a mercury switch 35 controlling solenoid 25 to close oil inlet valve 24 and water outlet valve 38 and open water inlet valve 32. Water entering chamber 10 forces the oil out via check valve 29 until float 11 engages shoulder 13 on rod 12 to close water inlet valve 32 and open the oil inlet and water outlet valves. A counter 40 in circuit with switch 35 records the number of operations of the apparatus.
Patent GB-1461863-A (GB)
Title: Flat knitting machines with circulating carriages
IPC: D04B13/00
Filed: 1974-08-23
Abstract: 1461863 Knitting-machines UNIVERSAL MACHINENFABRIK DR RUDOLF SCHIEBER KG 23 Aug 1974 [5 Sept 1973] 37261/74 Heading D1C In a flat machine having carriages 2 circulating over two or more needle beds, the carriages are spaced while over the beds by spacers and joined by interengaging guide elements. The carriages 2 circulate over two pairs of needle beds 3, 4 connected by curved tracks consisting of inner and outer guide rails 7, 8. The carriages are driven by chain 9 and their relative spacing increases as they move around tracks 5, 6-see carriages 2a, 2b. Each carriage carries at one side an adjustable distance pin 15 and a guide bolt 17 engaging in a guide recess 18 in an adjacent carriage, when the carriages are over the beds. The carriages are also held together at this time by catches (19 Fig. 8, not shown) which engage noses (21) on adjacent carriages and are released by cams (20) at the commencement of the curved tracks.
Patent GB-941737-A (GB)
Title: Improvements in or relating to hydrostatic transmissions
Inventor: PEARSON ROBERT COLIN
IPC: F16H61/46
Filed: 1961-05-18
Abstract: 941,737. Motor vehicle hydraulic transmissions. R. C. PEARSON. Feb. 14, 1962 [May 18, 1961], No. 37380/61. Divided out of 941,735. Heading B7H. [Also in Division F2] The displacement of a motor 21 is controlled by a jack 30 responsive to the pressure in motor supply line 16 through conduit 74 and comprising a differential area piston 34 with a passage 36 through it and a compression spring 35 acting on the rod side of the piston. The position of the piston is determined by the balance of the fluid and spring forces on the two sides of the piston, increase of line pressure compressing spring 35 and hence increasing the motor displacement. The passage 36, which prevents sudden piston movements in response to surge in line 16, may be replaced by a plurality of passages through the piston, or a clearance round the piston or by a branch conduit from line 16 communicating with both ends of the jack. Greater restriction to flow in one direction than the other between the sides of the piston may also be provided. Specification 902,185 also is referred to.
Patent GB-344509-A (GB)
Title: Improvement in knitted fabrics and processes for making the same
IPC: D04B1/26
Filed: 1929-12-07
Abstract: 344,509. Stockings. HEMPHILL CO., Central Falls, Rhode Island, U.S.A.- (Assignees of Lawson, J. ; Central Falls, and Lawson, R. H. ; Pawtucket, both in Rhode Island, U.S.A.) Dec. 7, 1929, No. 37588. Convention date, Jan. 18. [Class 141.] A knitted fabric for a stocking comprises a main yarn 38 and a plating yarn 39 knitted together at every course, but not at every wale, and at least one striping thread 40 knitted at certain wales only, not more than one of the yarns being knitted at some or all of the striping wales. Both yarns 38, 39 may be floated at the back of some or all of the striping wales. The striping thread may also float at the back of the striping wales. Specification 300,605, [Class 141, Wearing apparel], is referred to.
Patent GB-758334-A (GB)
Title: Rocket-bomb mounting system
IPC: B64D1/04
Filed: 1954-12-30
Abstract: 758,334. Finned projectiles. ROBERT. R. A.. and MATGE. P. P. Dec. 30. 1954 [Jan. 4. 1954], No. 37628/54. Classes 9(1) and 9(2) Rocket bombs are arranged horizontally one above the other in a vertical row each bomb being supported by the bomb above and the uppermost bomb by a support, the support means being also a guide and the support and guide means being part of the fin structure of the bombs. The rocket body 10 has an annular flange 11 from which project bosses 12 in which are secured rods 13 arranged longitudinally of the rocket and carrying fins A<SP>1</SP>, A<SP>2</SP> .  A<SP>3</SP>, A<SP>4</SP>. Springs 44 surrounding rods 37 aligned or integral with rods 13 bear against bosses 22 which receive the rods 37 and 13 and against sockets 38 bv which the rear end of each fin is pivoted on rod 37. Each boss 22 has a cut-away part 27 co-operating with a tongue 28 of an enlarged part 20 of the associated fin to lock the fin in the expanded position. The enlarged part 20 of fins A<SP>1</SP>, A<SP>2</SP> is forked to form two legs 33, 34 which when the fins are in the collapsed position of Fig. 2 engage ribs 42<SP>3</SP>, 42<SP>4</SP> of circular section on the inner edge of the fins A<SP>3</SP>, A<SP>4</SP> of a rocket B<SP>1</SP> immediately above rocket B, Fig. 2. In the expanded position, the fins are pressed against abutment stops 15, Fig. 11, by their associated springs. To fold the fins, they are pushed forwardly disengaging the tongues 28 from their respective notches and compressing the springs 44. Fins A<SP>3</SP>, A<SP>4</SP> are then pivoted to abut against stops 15, 15 and subsequently fins A<SP>1</SP>, A<SP>2</SP> are folded over fins A<SP>3</SP>, A<SP>4</SP>, the forked parts of fins A<SP>1</SP>, A' then being uppermost ready for engagement with the ribs 42 of another rocket. Forwardly the rockets B, B<SP>1</SP> may be. secured together as in Specification 724,781. The rockets are stored in an aircraft magazine in vertical rows, the uppermost rocket in each row being suspended from a support having ribs similar to the ribs 42 for engagement with the fins of the rocket. As the rocket is fired, it moves forward guided by the ribs 42 of the rocket above, until the fins leave the ribs. Whereupon the fins are forced to expand by the springs 44, until halted bv the stops 15. The fins then set back until tongues 28 enter the notches 27 locking the fins in position. The propellant gases of the rocket escape through a nozle 50 having a frustoconical section 51, a cylindrical part 52 and a divergent outlet 53. The nozzle 50 may be used as a core on which to mould the sleeve 23 supporting the fins.