baber/WOPTO huggingface dataset:
Patent GB-152743-A (GB)
Title: Improvements relating to rudder operating gear
IPC: B63H25/34
Filed: 1919-07-16
Abstract: 152,743. Fraser, G. H., and Jarvis, G. F. July 16, 1919. Steering-gear. - Relates to operating gear for twin rudders adapted for steering or reversing, which are moved by a tiller, sector, or wheel. A tiller j, Fig. 1, is pivoted to a stud a carried by a nut b which may be traversed by a screw c carrying a drum or chain wheel d. The nut b slides in guides e. Radial arms i are mounted on the concentric rudder stocks g, g<1> and are connected by links h, Fig. 2, to the ends of a crosshead f carried by the nut b. When the nut b is traversed longitudinally, the angularity of the arms i is altered and the rudders closed for reversing. The ordinary steering movements are effected by turning the tiller j, which moves both rudders in the same direction. In a modification, the tiller may be arranged below the nut b. In another modification, Fig. 5, the movements of the carriage b may be effected by levers k pivoted on a cross-bar l and moved by a rod m. In another modification, Fig. 8, the steering is irreversible. The nut b is provided with an extension b<1> supporting a screw n which carries a drum o for operating the gear. The nut p engages the slotted extension f<1> of the cross-head f.
Patent GB-676396-A (GB)
Title: A process for the recovery of hydrogen sulphide and other acid constituents from gases particularly illuminating gas
IPC: C10K1/12
Filed: 1950-07-17
Abstract: 676,396. Gas purifying processes. KOPPERS GES., H. July 17, 1950 [July 16, 1949], No. 17832/50. Class 55 (ii). In a gas scrubbing process employing ammoniacal liquor afterwards treated in a still from the middle part of which a weak liquor poor in acid constituents is drawn off and returned to the scrubber, ammonia vapours are drawn off at a point below the weak liquor outlet and, e.g., after condensing are also returned to the scrubber. Aqueous ammonia from a gas washer 1 is pumped to the top of a distillation column 9, part being directed through a heat exchanger 10 and introduced into a middle portion of the column. Steam admitted at a bottom inlet 13 carries off hydrogen sulphide and other acid constituents, and ammonia which is reversed in a saturator 15. Diluted liquor is withdrawn through a pipe 17 and passes through heat-exchanger 10 back to the washer. In the lower part 12 of the column liquor is treated with lime, ammoniacal vapours being withdrawn. through a pipe 20, condensed and admitted through a valve 22 into the liquor stream returning to the washer. A second washer may recover remaining traces of ammonia.
Patent GB-458445-A (GB)
Title: Improvements in casings suitable for small electric apparatus such as tubular condensers
IPC: H01G13/00
Filed: 1935-06-21
Abstract: 458,445. Condensers; resistance casings. STANDARD TELEPHONES & CABLES, Ltd., and LENO, J. A., 63, Aldwych, London. June 21, 1935, No. 17890. [Class 38 (ii)] [See also Group XXXVI] A tubular casing suitable for small electrical apparatus f such as condensers, grid-leaks, &c. comprises two shells each of half-cylindrical shape provided with a recess e at one end, and a lug b at the other of external dimensions the same as the internal dimensions of the recess, grooves a being formed in each half so that connecting wires g can emerge through the flat ends of the casing. The enclosure is complete except for these grooves. The casing may be made of moulded insulating material.
Patent GB-974631-A (GB)
Title: Improvements in or relating to dishwashing machines
IPC: A47L15/32
Filed: 1962-05-09
Abstract: 974,631. Dishwashing machines. F. W. BLANCHARD Inc. May 9, 1962 [Jan. 22, 1962], No. 17894/62. Heading A4F. The dish-rack 71, 75 of a dishwashing machine is rotated by water jets 132, emitted from a tube 21 beneath the dish rack, impingeing on the dishes. The tube 21 also emits a series of braking jets 134 at a greater angle to the vertical than the jets 132, to maintain the rotational speed of the dish-rack substantially constant, irrespective of the size and distribution of the load. The main propulsion jets 132 preferably make angles of 18 degrees with the vertical and 60 degrees with the braking jets 134 and are greater in number than the latter. An additional jet 135, preferably at an angle of 60 degrees to the vertical, impinges on the dish-rack to ensure that it rotates regardless of how the load is distributed. Specifications 974,632 and 974,633 are referred to.
Patent GB-1123474-A (GB)
Title: Dimerisation process
Inventor: HAMBLING JAMES KEITH
IPC: C07C2/32
Filed: 1966-04-25
Abstract: Alpha-olefins are dimerized to give pre-dominantly linear products by contact with a catalyst comprising (a) a complex organic compound of a Group VIII metal, (b) an activating agent, and (c) a tetra-alkyl tin compound, at a temperature in the range - 40 DEG  to + 200 DEG C. under such conditions of pressure that the reactants are maintained in the liquid or partially condensed phase.  Suitable catalyst components are (a) nickel acetylacetonate, (b) aluminium diethyl ethoxide and aluminium triethyl, and (c) tetra-ethyl tin and tetra-butyl tin.  A solvent or diluent may be present.  Examples illustrate the dimerization of propylene.
Patent GB-1235825-A (GB)
Title: Improvements in or relating to changing devices for furnaces
IPC: F27D1/18
Filed: 1970-04-15
Abstract: 1,235,825. Charging device for furnaces. IPSEN INDUSTRIES INTERNATIONAL G.m.b.H. 15 April, 1970 [26 April, 1969], No. 17910/70. Heading F4B. A charging device for a heat-treatment furnace 10, comprises a container 14 linked to a sliding door 15 of the furnace by a rod 18, the container 14 being suspended from a pivot 17 which extends transversely to the direction of movement of the door 15. The door carries a shoot 21 slidable along a plate 22. In operation to charge the furnace 10, the drive 16 opens the door 15 and thus tilts the container 14, the shoot 21 being drawn by the door 15 across the charging aperture 25 into alignment therewith. The rim of the shoot 21 is fitted with a device 23 which produces a sheet of flame (24, Fig. 2) which covers the aperture 25 and prevents the admission of cold air into the furnace.
Patent GB-1068977-A (GB)
Title: Improvements in or relating to switching networks for use in telecommunications exchange systems
IPC: H04Q3/68
Filed: 1966-04-25
Abstract: 1,068,977. Automatic exchange systems. SIEMENS A.G. April 25, 1966 [April 26, 1965], No. 17954/66. Addition to 1,058,893. Heading H4K. The switching network of the parent Specification is provided with a so-called path-seeking network which has a junction point for each switch of the switching network and which serves in response to end markings to determine the shortest available route. The path-seeking network may be duplicated.
Patent GB-715242-A (GB)
Title: Improvement in adjustable magnetic focussing system for beam tubes
IPC: H01J37/143
Filed: 1952-07-16
Abstract: 715,242. Electron beam apparatus. SPERRY CORPORATION. July 16, 1952 [July 16, 1951], No. 18052/52. Class 39(1) An electron discharge apparatus, such as a klystron or travelling wave tube, has two pole pieces 41, 43, Fig. 1, forming part of the tube envelope and traversed by the beam, and two soft iron magnetic coupling rings 47, 49 connected to the opposite ends of a permanent magnet 45, the rings 47, 49 and polepieces 41, 43 being relatively adjustable in planes perpendicular to the beam, preferably by means of two sets of three or more adjusting screws, Fig. 2 (not shown). This arrangement compensates for undesired asymmetries in the magnetic field due to the asymmetrical disposition of the magnet, misalignment of drift tubes 27, 29 between cavity resonators 17, 19, 21, and of the electron gun, presence of ferrous alloys in the individual resonator tuning units such as 31, 33, 35 and in the input or output couplings, or partial saturation or non-uniform flux density in the pole pieces 41, 43. Each ring 47, 49 comprises two semicircular parts mortised and pinned together at one meeting point and making a butt joint adjacent to the flat surfaces of contact with the magnet 45, Fig. 2 (not shown). Rings 47, 49 are screwed to brass spacer 67 attached to two plates 69 secured to magnet 45 at 77. The magnet system is preferably mounted rigidly, and magnet 45 may be of bar or U-shape. The tube has three cavity resonators 17, 19, 21 and hollow collector 23, and 25 and 41 serves as the final gun anode, 17 is the input resonator and 19, 21 give a low and high power output respectively; the resonators are individually tuned as by piston 31 actuated by screw 35 through bellows 33. The tuning units may be all similarly constructed and be at different angular positions. The energy coupling may be to or from coaxial lines for 17, 19 and to a wave guide for 21.
Patent GB-972555-A (GB)
Title: Improvements in or relating to rocket launchers
IPC: F41F3/065
Filed: 1961-05-18
Abstract: 972,555. Rocket launchers. THOMAS FRENCH & SONS Ltd. (Engine Matra S.A.). Aug. 20, 1962 [May 18, 1961], No. 18088/61. Heading F3C. Rocket launching tubes 12 in a rocket launcher on an aircraft are provided with closure means 13 freely but closely fitting within the forward ends of the tube and thus readily displaceable from the tubes upon firing of the rockets. The closure means may take the form of a cylindrical plug but as shown it comprises a spherical hollow body 13 of polythene or P.V.C. strengthened by radial braces 15 and provided with a peripheral rib 14 adapted to engage seating 12a in the tube to locate the body 13 axially in the tube. A through hole 16 in the body 13 permits equalization of pressure in the body 13 relative to outside pressure with change in altitude. A frangible nose cone may cover the front of the launcher in addition to the tube closure means to provide satisfactory streamlining.
Patent GB-585481-A (GB)
Title: Improvements in and relating to adhesive compositions
IPC: C09J7/02
Filed: 1944-09-22
Abstract: A pressure-sensitive adhesive composition comprises 15 to 45 per cent by weight of a polymeric vinyl acetal of a medium to high degree of polymerization, 30 to 55 per cent by weight of a tackifying material and 10 to 40 per cent by weight of a plasticiser.  The compositions may be applied to backings such as paper, cloth, regenerated cellulose, cellulose ethers and esters and metals and is preferably spread on in solution using alcohol p  or toluene and alcohol as solvent.  Suitable polymeric acetals are polyvinyl formal, acetal, butyral, isobutyral, benzal-butyral, pental, hexal and heptal.  The tackifiers include natural resins and their derivatives such as hydrogenated rosin and its glyceride ester.  Suitable plasticisers are tricresyl phosphate, butyl acetyl ricinoleate, butyl laurate, pine oil, blown or raw castor oil, methyl phthalyl ethyl glycollate, triethylene glycol di-2-ethyl butyrate, drying oil-modified alkyd resins, dibutyl phthalate, dicapryl phthalate and dibenzyl sebacate. Materials which act both as tackifiers and plasticisers may also be used and include highly polymerized blown castor oil, gelled castor oil and other modified castor oils.
Patent GB-477586-A (GB)
Title: Improvements in or relating to compositions for and methods of killing weeds
IPC: A01N59/00
Filed: 1936-06-30
Abstract: A composition for killing weeds comprises a chlorate of an alkaline earth metal and at least 5 per cent of one or more soluble non-oxidizing compounds of an alkali or alkaline earth metal, the non-oxidizing compound should be one which produces a non-volatile alkaline residue on ignition and which in solution reduces the ionization due to hydrolysis of the chlorate to chloric acid and the composition should be substantially free from any other oxidizing agent and from acidifying agents and combustible carbonaceous material.  The addition of the non-oxidizing compounds is stated to reduce the fire hazard due to the use of the chlorates whilst rendering them more effective as weed-killers.  Non-oxidizing compounds specified are the carbonates, bicarbonates, acetates, aluminates, borates, silicates, formates, hydroxides, ferrocyanides and phosphates. The composition preferably contains 1-10 parts non-oxidizing compound or compounds to 10 parts of chlorate; in examples the compositions comprise 6 parts sodium chlorate to 4 parts of sodium carbonate, and 6 parts of sodium chlorate to 3 parts of sodium carbonate and 1 part of sodium acetate the latter composition may be produced by adding acetic acid to a solution of sodium chlorate and sodium carbonate.  The composition may be applied dry but is preferably applied in the form of a 5-20 per cent solution. Specification 396,701 is referred to.  Reference has been directed by the Comptroller to Specification 451,894, [Group III].
Patent GB-596050-A (GB)
Title: Improvements in electrically actuated valve units
IPC: F16K31/06
Filed: 1945-07-16
Abstract: 596,050. Electrically-actuated valves. STONER, F. E. July 16, 1945, No. 18193. Convention date, Feb. 12. [Class 135] [Also in Group XXXV] A light-weight solenoid valve assembly for lubricant dilution systems comprises a body 10 with oppositely disposed inlet and outlet passages 11, 12 and a, transverse bore 16, a valve seat 17 formed by the flat bottom of the bore 16 and having a central port 18 and an offset port 19 opening into the passages 12, 11 respectively, a slidable solenoid plunger 22 with an annular seal 24 which seats around the port 18, a Hanged bushing 20 mounted in the bore 16 so that its flange 21 bears against the exterior of the body 10 and a solenoid coil 26 mounted between the flange 21 and a top plate 28 so that when energized it opens the valve. When the solenoid is de-energized, the valve is closed by a spring 36 and the inlet pressure which has access to a chamber 39 above the plunger 22 by passages 37, 38 and a space formed between the plunger 22 and a counterbore 41. The flange 21 has metal-tometal contact with the upper face of the body 10 which has a recess 42 completely containing a ring seal 43 when compressed. The upper part of the plunger 22, which is of steel or like magnetic material, slides in a sleeve 25 bonded to the bushing 20 and receiving in its upper end a stud 27 projecting from the plate 28. The coil 26 is surrounded by a casing 29 which also serves to clamp in position a cap 31 carrying a fitting 33 for the attachment of an electric cable. A wire 34 is passed through the fitting into an opening 35 in the plate 28. The inlet port 19 is of arcuate shape. The passages 11, 12 are enlarged at 14, 15 for the attachment of pipes.
Patent GB-853950-A (GB)
Title: Catalytic hydrocarbon radiochemical conversion process
IPC: B01J19/08
Filed: 1957-06-11
Abstract: Hydrocarbon oils are converted to other hydrocarbons, particularly branched and unsaturated hydrocarbons, by irradiation with gamma rays and neutrons in the presence of a hydrocarbon conversion catalyst impregnated with at least 5% by weight of water.  Some oxygenated compounds, e.g. carboxyl compounds, are also produced.  The catalyst may be suspended in the oil or may be in the form of a fixed or moving bed.  The catalyst size is preferably below 1000 microns, with a surface area greater than 50 square meters per gram and a pore volume greater than 0.2 c.c. per gram.  Water may be added to the feed material when using a fixed bed to maintain the required proportion of water.  The reaction may be carried out in a nuclear reactor, and the feed stream may serve as moderator. After irradiation the product is separated into its constituents, part of which may be recycled.  The preparation of three catalysts is described:-alumina catalyst.-An excess of ammonia water was added to an aluminium alcoholate solution.  The aqueous slurry was dried at 250 DEG F. and the alumina calcined at 1100 DEG F. for 4 hours, the product having a surface area of 100-200 square metres per gram. Silica-alumina catalyst.-A silica hydrogel was soaked in an aluminium sulphate solution and then treated with ammonia followed by washing free from sulphate.  The product after drying and calcining at 1200 DEG F. for 3 hours had a surface area of about 500 square meters per gram.  Platinum on alumina.-This was a commercially available catalyst containing 0.6% by weight platinum and 0.6% by weight chlorine in the form of 3/16 X 1/8 inch cylinders having a surface area of 300 square meters per gram and a pore size of 50 to 80  . All three catalysts were impregnated with water, e.g. up to 27% by weight of water.  Three oils were subjected to radiation in the Brookhaven nuclear reactor in the presence of the catalysts, and the products were analysed and compared with those obtained using either no catalyst or water-free catalyst.  It is stated that the catalyst may contain an additional, e.g. hydrogenating, component affecting the conversion, e.g. the elements, oxides or sulphides of platinum, molybdenum, palladium, nickel, rhodium and euthenium. Silica or salts or oxides of potassium, calcium and magnesium may also be present.  A radiochemical accelerator may also be present, e.g. boron 10, lithium 6 and cadmium, as elements or compounds, e.g. tri-n-dodecylborate, which give off alpha or beta rays upon neutron capture.  Other catalyst bases referred to are silica, zirconia, titania, magensia, zinc aluminate and activated charcoal.  Specifications 802,552, 814,562 and 823,426 are referred to.
Patent GB-458241-A (GB)
Title: Improvements in or relating to motor vehicle suspensions
IPC: B60G11/22
Filed: 1936-07-02
Abstract: 458,241. Vehicle spring-suspensions; springs. GETEFO GES. FUR TECHNISCHEN FORTSCHRITT, 13, Woyrschstrasse, Berlin. July 2, 1936, No. 18422. Convention date, July 2,1935. [Classes 108 (ii) and 108 (iii)] In vehicles having independently sprung wheels mounted on pivoted arms or levers and provided with an arrangement for taking up the forces of the mass when cornering the pivoted arms are mounted on the spring body at the height of the plane passing through the centre of gravity. Fig. 1 shows a body 1 in which the wheels 3 are carried by half-axles 4 pivoted at 5 in the plane 2 of the centre of gravity. Rubber springs 6 are provided for taking up the load applied uniformly to the body while springs 8 serve to resist the forces due to unequal load. The rubber springs may be of various forms and as shown in Figs. 3 and 4 may consist of end portions 16 secured to a metal eye 15 by a layer of adhesive 17 the intermediate portions being provided with slits 19, 20 causing the portions to form strips which may have a circular, oval or other cross-section. Fig. 11 shows another form of rubber spring which is adapted for both tensile and compressive stresses and is provided with buffer parts 23. The arms supporting the wheels may oscillate in a plane parallel to the longitudinal centre or in a plane inclined thereto, in order that the wheel may move backwardly on striking an obstruction. Fig. 17 shows an arrangement in which the half axle when rising also moves backwardly, helical surfaces 29 on the half axles and guides co-operating, while rubber springs may be provided to resist this action and if desired to serve as the resilient suspension.
Patent GB-1486603-A (GB)
Title: Rapid processing at elevated temperature of exposed silver halide elements
IPC: G03C1/053
Filed: 1974-04-26
Abstract: 1486603 Polymers containing iminoguanidinium groups AGFA-GEVAERT 9 Dec 1974 [26 April 1974] 18425/74 Heading C3P [Also in Division G2] Poly(vinyl methyl keto iminoquanidium acetate) is prepared by mixing freshly distilled vinyl methyl ketone and aminoguanidinium hydrogen carbonate in ethanol and heating the mixture while gradually adding acetic acid. The resultant monomer is polymerized in situ by adding azobisisobutyronitrile. Co(acrylyloxymethyl, methyl ketoiminoguanidinium acetate / acetonyl acrylate) is prepared by polymerizing acetonyl acrylate using azobisisobutyronitrile and then refluxing the polymer, while heating, with aminoquanidinium hydrogen carbonate.
Patent GB-1181381-A (GB)
Title: Film Drive Unit
Inventor: LAWSON WILLIAM ANDREW
IPC: G03B1/22
Filed: 1967-04-21
Abstract: 1,181,381. Film feed mechanisms. EASTMAN KODAK CO. April 21, 1967 [April 21, 1966], No. 18454/67. Heading G2E. Intermittent film feed mechanism comprises a film advance pawl 20 on a bar 26 cyclically driven by rod 24 eccentrically mounted on motor-driven wheel 22, and rollers 32, driven by rack and pinion engagement with bar 26 through a one way clutch 34, which accelerate the film before the pawl enters one of the equispaced apertures 14. The bar 26 actuates switch 28 to energize a clamping device 29 which prevents "bounce back" of the film during the return stroke of pawl 20. Rollers 32 drive the film at a slightly lower speed than the pawl 20.
Patent GB-731440-A (GB)
Title: Improvements in or relating to axial-flow turbines and compressors
Inventor: HODGE JAMES
IPC: F01D5/18
Filed: 1952-07-22
Abstract: 731,440. Axial flow turbines and compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 5, 1953 [July 22, 1952], No. 18488/52. Class 110 (3). In an axial-flow turbine or compressor, for example a gas turbine, liquid coolant injection means are located around the perimeter of the blade at the root end of the effective portion so that liquid coolant may flow on to the surface of the effective portion around substantially the whole perimeter thereof. In the gas turbine rotor shown, an annular sleeve 12 extends around the rim of the rotor and narrow annular openings 13 are formed between the sleeve 12 and the rotor blades 10. Coolant liquid is fed across the surfaces of the rotor disc from orifices 14 in the stationary injecting rings 15 and the liquid is collected in the sleeve 12 and passes through the openings 13 on'to the surfaces of the blades. The coolant may be water or liquid fuel in the case where the working fluid is to be reheated downstream of the turbine. Further liquid coolant may be discharged around the perimeter of the blade through a second annular space 16 nearer the tip of the blade, the liquid first passing through the interior of the radially inner part of the blade. The invention is also applicable in the case of stator blades, and the quantity of liquid coolant may be varied around the perimeter of the blade. Specification 731,425 is referred to.
Patent GB-1098035-A (GB)
Title: Improvements in flock-coating of articles
Inventor: HOLROYD ERIC
IPC: D04H11/00
Filed: 1964-05-05
Abstract: 1,098,035. Stencilling-apparatus. DUNLOP RUBBER CO. Ltd. April 12, 1965 [May 5, 1964], No. 18587/64. Heading B6C. An apparatus for the continuous production of flocked material comprises a rigid cylindrical stencil unit 15 rotated by the motion of the adhesive coated web 28 which is being screenprinted whilst supported by a driven endless band 29. A flock-dispersing mechanism is located within the stencil unit and comprises a vertically adjustable unit having a flocking head 23 and a vacuum extraction nozzle 25. Stencilling is effected in an electrostatic field formed between electrodes 10 and 10a. Lateral motion of the stencil unit is prevented by idler rolls 19. In a modification a stencil in the form of an endless belt travels in a rectangular path over four rollers at least one of which is driven. The flock-dispersing mechanism is enclosed within the rectangular path. The stencil 14 of unit 15 is made of hardboard in rectangular format before being rolled into cylindrical shape. Several flock-dispersing mechanisms may be provided in the one apparatus each using a different flocking medium from the others. Such differences may be of staple length and/or colour and/or material. Car mats may be produced by this apparatus.