baber/WOPTO huggingface dataset:
Patent GB-651307-A (GB)
Title: Method of diminishing the formation of foam and preparations therefor
IPC: B01D19/04
Filed: 1948-05-28
Abstract: Tri-n-butyl silicone is prepared by reacting n-butyl chloride with silicon chloroform in ether in the presence of sodium. Sodium chloride is removed by filtration, ether is removed, and the residue distilled.  Similarly by substituting isoamyl chloride for n-butyl chloride tri-isoamyl silicane is obtained.ALSO:Tri and tetra-alkyl silicanes wherein the alkyl groups contain at least 2 carbon atoms are mixed with a solvent or another substance capable of lessening foam formation and added to liquids to diminish foam formation therein.  In general, 0.01 to 0.5 per cent of the silicane suffices but the composition of the mixture itself can vary considerably. Specified silicanes are: tri-ethyl-; tri-(n-propyl)-; tri-isopropyl-; tri-(n-butyl)-; tri-isobutyl-; tri-isoamyl-; tri-(n-hexyl)-; tri-(2-ethyl butyl-1)-; tri-(n-octyl)-; tri-(2-ethyl-hexyl-1)-; tri-dodecyl-; tetra-ethyl-; and the tetra-isopropyl-; n-butyl-; isoamyl- and those containing a larger number of carbon atoms. Solvents soluble in water specified are isopropyl alcohol and polyhydric alcohols or their ethers, e.g. ethylene glycol; glycerine, diethylene glycol, ethylene glycol monoether and thiodiglycol; also ketones, e.g. acetone, whilst solvents sparingly soluble in water are aliphatic alcohols containing at least 5 carbon atoms especially branched chain ones, e.g. 2-ethyl-butanal, 2-ethyl-hexanal and also higher molecular weight alcohols, e.g. oleyl alcohol.  Also phenols, e.g amyl phenols.  Such sparingly water soluble solvents aid in diminishing foam formation as also do phosphoric acid esters, e.g. tri-(n-butyl) or tri-isobutyl-phosphate.
Patent GB-1130477-A (GB)
Title: Orthopedic shoe construction
IPC: A43B7/00
Filed: 1967-03-30
Abstract: 1,130,477. Boots &c. MEILLER RESEARCH Inc. 30 March, 1967 [19 Aug., 1966], No. 14521/67. Heading A3B. An orthopaedic shoe for correcting the position of the foot includes means for establishing a turning moment on the shoe to cause rotation thereof in response to ground engagement of the shoe under the weight of the wearer. As described a shoe 22 has a heel tread 24 having two sets 32, 34 of resilient ribs 36, 38. The ribs 36 are inclined so that when the wearer places his weight on the heel the ribs 36 flex and the shoe moves in the direction of the arrow in Fig. 3. The ribs 38 are inclined in the opposite direction so that the combined effect of the ribs 36, 38 is to exert a turning moment on the shoe and by arranging the inclination of the ribs in the appropriate direction the shoe can be used to correct toe-in or toe-out of the wearer. In a modification one set of ribs is positioned on the sole and the other on the heel. In a second embodiment the ribs are arranged radially in a circular pattern.
Patent GB-680159-A (GB)
Title: Process for the utilisation of heavy oils and residues for the production of oxygen-containing organic compounds
IPC: C07C29/156
Filed: 1950-06-13
Abstract: <PICT:0680159/III/1> Hydrocarbon residues such as heavy oils, tars, and cracked residues are subjected to incomplete combustion with such an amount of oxygen or gas containing free oxygen as to yield a gas mixture, containing 0.7 to 0.9 volumes of hydrogen per volume of carbon monoxide, which is then used in the catalytic synthesis of oxygen-containing organic compounds.  Water vapour, carbon dioxide, and/or methane may be added to the oxygen and the combustion should be carried out under elevated pressure.  Fuel oil is pumped to combustion chamber 3 from tank 1 and burns with oxygen passing through line 4 and preheater 5.  The hot synthesis gas passes through reaction chamber 6 having heat exchanger 7, heat exchanger 5 and cooler 8 to desulphurization device 9.  The gas is then passed to synthesis furnace 10 containing an iron catalyst, and the products are separated in device 11 comprising a condenser, a washer, and an activated carbon absorber.  The remaining gases pass to wash tower 12 and are washed with water under pressure, which passes to depressurization vessels 13, 14 and degasifying tower 15 to recover carbon dioxide, which is returned to the combustion chamber, and wash liquid, which is returned to tower 12.  Methane, obtained as residual gas from tower 12, may be returned to the combustion chamber, or added to the gas before the synthesis furnace.  In alternative arrangements the hot gases at say 1,600 DEG C are passed directly through a gas turbine after reaction 6 or the heat exchanger 7 is replaced by the tube system of a closed circuit turbine system.
Patent GB-492066-A (GB)
Title: Improvements relating to tanks for containing liquids used in the quenching of heat-treated metal articles
IPC: C21D1/63
Filed: 1937-05-27
Abstract: 492,066. Heating and cooling liquids. SERCK RADIATORS, Ltd., and ZIMMERMANN, H. J. May 27, 1937, No. 14699. [Class 64 (i)] A quenching apparatus for metal articles has cooling and circulating means comprising the combination of a tubular cooler a, mounted near one end of a tank b containing the quenching fluid, a centrifugal pump c arranged adjacent to the lower end and at the remote side of the cooler, an electric motor n mounted behind and above the cooler, and a spindle k connecting the motor to the pump. The cooler a is contained in a sheet metal chamber e suspended in the tank b. The tank liquid is caused to flow into the top of the chamber e, down over the tubes q to be withdrawn by the pump c to pass beneath the cooler a, and to rise through a perforated grid i arranged parallel with and near the bottom of the tank b. The cooler a comprises horizontal parallel tubes between vertical headers.
Patent GB-606670-A (GB)
Title: Improvements in and relating to the control of electric motors
IPC: H02H7/093
Filed: 1945-06-11
Abstract: A permanently magnetized core-leg forming part of an electro-magnetic relay (see Group XXXVII), is made of an alloy consisting, for example, of 12 per cent aluminium, 25 per cent nickel, and 5 per cent copper, the balance being mainly iron, thereby affording a material having a relatively great magnetic retentivity and a low magnetic permeability.
Patent GB-420228-A (GB)
Title: Improvements in or relating to apparatus for ozonizing and sterilizing
IPC: C01B13/11
Filed: 1933-05-23
Abstract: <PICT:0420228/III/1> In ozonizers of the type in which each of the electrodes is arranged behind a dielectric, and air to be treated is passed through a space between the dielectrics and is thereby isolated from the electrodes, each dielectric has a roughened surface to which a solid electrode is applied directly, for example by burning or by electrodeposition, whereby the air gap between the electrode and the dielectric is eliminated.  In a preferred form of construction, the ozonizer comprises two concentric cylindrical dielectrics 26 and 28 supported on lugs 31 arranged in end cap 30. The electrodes 25 and 27 are deposited on the inner and outer surfaces of the dielectrics 26 and 28 respectively, which are spaced apart to allow the passage of air which enters through holes 13 arranged in cap 12.  The inner electrode 25 contacts with a hollow cylinder 24 preferably of aluminium by which contact with a high tension bus-bar 1 is made via terminal 7.  The electrode 27 is in electrical connection with the outer casing 29, end-cap 30 and outlet pipe 5 by which connection to the opposite pole of the supply is made.  The dielectrics are preferably made of silica to allow the passage of ultra-violet rays.
Patent GB-629337-A (GB)
Title: Hydrohalogenation of unsaturated organic compounds
IPC: C07C17/08
Filed: 1947-06-05
Abstract: Hydrohalogenated unsaturated aliphatic hydrocarbons are produced by effecting the anti-Markownikoff addition of a hydrogen halide under the influence of actinic light to an unsaturated aliphatic hydrocarbon from which impurities of an aromatic nature have been removed by a treatment with selective adsorption agents or selective solvents for the said impurities.  Selective solvents instanced are liquid sulphur dioxide and furfural which are preferred and dimethyl sulpholane, phenol, propane-cresylic acid mixture and b  : b -di-chloroethyl ether.  Adsorption agents instanced are silica gel, activated charcoal, kaolin, diatomaceous earth, aluminium hydroxide or oxide, burned magnesium oxide and zeolite.  The impurities are removed because they tend to filter out light and treatment should be continued by, e.g. successive washings with fresh solvent or by passing through tubes packed with adsorption agent, until the olefine has an absorptive limit of below 3200 A.U., preferably below 3000 A.U. The process is primarily applicable to olefine mixtures or fractions containing at least ten carbon atoms in the molecule produced by cracking hydrocarbon molecules and particularly to olefines having a single double bond in the 1-position. Hydrohalogenation under ultra-violet light may be effected in the vapour or liquid phases or in a mixed liquid-vapour phase although with high molecular weight olefines a liquid phase reaction is preferred.  Ordinary temperatures may be used and the reactor should be cooled in some cases to below 0 DEG  C.  Solvents may be present and they should be inert to hydrocarbons and transparent to ultra-violet radiation, e.g. heptane, iso-octane and nonane are preferred.  All hydrogen halides are instanced as being effective but particularly hydrogen bromide.  In example (1) a Balik-Papan cracked wax C14 olefine fraction is divided into two portions, one of which is passed through a column of silica gel to realise an adsorptive limit of 2960 A.U. compared with the untreated portion's limit of 4050 A.U., both portions then being treated at 0 DEG  C. with hydrogen bromide in the presence of light from a mercury arc lamp when it is found that 90 per cent of the treated and less than 10 per cent of the untreated olefine is converted to tetradecyl bromide, in (2) another portion of the above fraction is extracted six times with equal volumes of liquid sulphur dioxide to realise an absorption limit of 3200 A.U. when it could be readily photohydrochlorinated as is the case when furfural or dimethylsulpholane are used as solvents. Specification 554,499 is referred to.
Patent GB-835368-A (GB)
Title: Improvements in impact force transmitting devices
Inventor: SIMON RALPH
IPC: E21B1/36
Filed: 1958-05-09
Abstract: 835,368. Percussive tools. INGERSOLLRAND CO. May 9, 1958, No. 14961/58. Class 124. A percussive drill, in which the impact is transmitted through a drill steel from a starter to a working implement, has the working implement movable relative to the drill steel. As shown, the working implement comprises a bit 26 threaded on to a stub shaft 28 which is movable relative to a retainer 25 and is prevented from rotating by a bush 32 screwed into the retainer and provided with flutes which engage splines on the shaft 28. The retainer is screwed on to the steel 18 and splines 38 on the rear of the shaft 28 prevent the working implement from falling out of the retainer. The working implement acts as a trap for the percussive wave, the length of which is approximately equal to twice the length of the striker used, the length of the working implement being equal to the length of the striker.
Patent GB-975669-A (GB)
Title: Improvements in and relating to gear hobbing
IPC: B23F5/22
Filed: 1963-04-16
Abstract: 975,669. Gear-cutting. FABRIQUE DE MACHINES MIKRON S.A. April 16, 1963 [May 11, 1962], No. 14972/63. Headings B3K and B3T. A method of hobbing gears consists in cutting the teeth on the gear on both upward and downward traverse strokes of the hob with infeed between the strokes. The hob 36 is carried in a head 31 adjustable angularly on a flange 22 on a sleeve 20 movable axially by hydraulic means between stops 29, 30 and guided by a rod 24. A motor 37 rotates a pulley 38 to rotate the hob through gears 41, 45, 46, 48, 49 and the work through gears 50-70 including a differential gear 64. The hob slide 14 is traversed by a screw 81 driven through gears 71-78 including reversing gearing 82-86 controlled by an hydraulically - operated clutch 87. The workpiece speed is adjusted on reversal of traverse by gears 89-92 which drive on to the differential housing 64 and which are chosen according to the helix angle of the gear. The speed of traverse of the tool can be reduced for finishing.
Patent GB-291056-A (GB)
IPC: H02P7/34
Filed: 1928-05-22
Abstract: 291,056. Akt.-Ges. Brown, Boveri, et Cie. May 25, 1927, [Convention date]. Electric systems for transmitting mechanical power.-For the propulsion of ships, two electric motors M<1>, M<2> respectively driving propellers S', S<2> are fed by two pairs of controllable generators G<1> - - G<4>, each pair driven by a respective prime mover D', D<2>. The motors are controlled in known manner by varying the feeding voltage, by putting the generators in different seriesparallel groupings, and by cutting out one pair of generators. According to the invention, arrangements are made whereby one generator of a pair can be switched over to feed the motor of another pair, which latter may be put out of use, during low-power running. The field control of the switched-over generator is temporarily transferred to the controller belonging to the idle set.
Patent GB-738617-A (GB)
Title: A process for the production of polymerisation products
IPC: C08F4/00
Filed: 1953-05-29
Abstract: Organic monomers having a terminal carbon-to-carbon double bond are polymerized in bulk in the presence of a redox catalyst system and a polyhydric alcohol which is soluble in the monomer and contains a smaller number of free hydroxyl groups than of carbon atoms, and optionally monohydric alcohols, the total alcohols not exceeding 20 per cent by weight of the monomers.  Monomers mentioned are acrylic and alkylacrylic acids and their esters, e.g. methyl methacrylate. The monomers are preferably polymerized in the presence of polymers, e.g. polymethyl methacrylate.  The redox system may be a mixture of a peroxy compound such as benzoyl peroxide or chlorbenzoyl peroxide and a t.-amine, e.g. phenylethyldibutylamine or the sulphone amines or sulphone carbinols described in Specification 708,077, or the sulphinic acids and salts described in Specification 710,535.  The systems may also include halogen compounds, e.g. those described in Specification 734,948, and metals, e.g. iron and copper, and salts of the type described in Specification 734,848.  Polymerization inhibitors, e.g. hydroquinone, may be added to the monomers. Alcohols mentioned are 1,2-propandiol, 1,3-butandiol, 1,4-butandiol, 1,5-pentandiol, trimethylolethane, the monobutyl ether of glycol, and esters of polyhydric alcohols, e.g. with acetic acid.  The process may be used in the manufacture of artificial teeth and dental fillings.
Patent GB-1456734-A (GB)
Title: Striking tool
IPC: B02C13/28
Filed: 1974-04-04
Abstract: 1456734 Impact pulverizers B H S BAYERISCHE BERG - HUTTEN - UND SALZWERKE AG 4 April 1974 [7 April 1973] 15088/74 Heading B2A An impact pulverizer impact tool is made of two layers one 8 wear resistant (on the striking edge) relative to the other layer 9. The spacing of the impact edge relative to the separating line between the two layers remains substantially constant during wearing down of the tool as at W 1 ....W 5 . The sharp edge 11 remains. The tool may be a rigid beater Fig. 1 or a pivoted hammer Fig. 2. The layer 8 may be tungsten carbide, silicon carbide boron carbide or tool steel, and the layer 9 may be mild steel or cast iron.
Patent GB-439787-A (GB)
Title: Improvements relating to supply reels of strips of paper or the like for making smoke filter plugs and machines for their treatment
IPC: A24C5/20
Filed: 1935-05-23
Abstract: 439,787. Cigarette-making machines. BUNZL, M., BUNZL, R., BUNZL, E., and BUNZL, G., (trading as ORTMANN'S NACHFOLGER, I.), 161, Engerthstrasse, Vienna. May 23, 1935, No. 15101. Convention date, May 23, 1934. [Class 130] Two or more supply reels b for making smoke filter plugs &c., especially those of crepe paper, an absorptive substance such as cellulose wadding or alternating layers of the paper and wadding, are situated on a common core a with their adjacent end surfaces bearing against each other. The outer faces of reels are coated with adhesive by placing them in a hinged frame 19 which is turned upright to permit the reels to drop between rolls 4 which feed them between coating rolls 5, The rolls 5 dip into adhesive in a trough 20 and the reels are drawn therebetween by rolls 7 which direct them to a removable tray 18. The shafts of the rolls 4, 5 are driven by a single chain and the rolls 7 by gearing from the shaft carrying the chain driving sprocket. The rolls are adjustably spaced apart to accommodate the reels.
Patent GB-806998-A (GB)
Title: Regulator set for electric generators on motor vehicles
IPC: H02J7/22
Filed: 1957-05-13
Abstract: 806,998. Self-contained supply systems. FIAT S.p.A. May 13, 1957 [May 19, 1956], No. 15145/57. Class 38 (4). A regulating device for use with the generators of motor vehicles is characterized in that it comprises an electromagnet 12 acting as a voltage regulator and an electromagnet 16 acting as a current regulator, the two electromagnets being secured to, but electrically insulated from, a magnetic bedplate 1, and an auxiliary armature 8 carrying contacts 15 which serves as a reverse current cut-out and which is so arranged that when operated it completes a magnetic circuit which includes the bedplate 1 and the magnetic cores 4, 5 of the two electromagnets. The electromagnets 12, 16 together with the associated contacts 13, 14 function to regulate the output voltage of a generator D in the usual manner, the armature 8 being attracted when the output voltage of the generator D is sufficient whereby the charging circuit of a battery B is completed by the contacts 15. Should the generator voltage fall below that of the battery the reverse current will reduce the magnetic field wherein the armature 8 will be retracted by a spring or the like to break the circuit between generator and battery.
Patent GB-1163514-A (GB)
Title: Improvements in or relating to racks, trays or the like
Inventor: BAUER HELMUTH
IPC: A47B5/04
Filed: 1968-03-29
Abstract: 1,163,514. Trays. H. BAUER. 29 March, 1968 [29 March, 1967], No. 15164/68. Heading A4H. A tray adapted to be placed on a bath comprises a lazy arms assembly extending between two parallel struts 3, 3<SP>1</SP>. Two pivot points 2a of the lazy arms are pivotally connected to the struts 3, 3<SP>1</SP> and two further pivot points 2b are linked to sleeves 4, 4<SP>1</SP> slidable on the struts 3, 3a; one sleeve 4<SP>1</SP> can be secured by a screw 5<SP>1</SP>. The sleeves, 4 4<SP>1</SP> may be replaced by apertured U-shaped strips (6, Fig. 2) or by sliders (11, Figs. 4, 5) disposed within tubular struts and threaded on rods (12) rotated by handles (13). Stops (9) are adjustably secured to the tubes to prevent the tray from slipping when placed on a bath. Articles are retained on the tray by U-handles 5 on the lazy arms.
Patent GB-933553-A (GB)
Title: Improvements in and relating to grease guns
IPC: F16N3/12
Filed: 1960-04-29
Abstract: 933,553. Pumps; syringes. E. P. SANDHOLM. April 29, 1960, No. 15217/60. Classes 102(1) and 102(2). In a grease gun of the kind having a cylindrical grease container 10, a dispensing head 11 comprising a manually operated piston 28 within a cylinder 26 to withdraw grease from the container and force it through an outlet 34 and an inlet opening 38 through which grease can be pumped into the forward portion of the container, and a slidable plunger assembly arranged for movement away from and toward the dispensing head, the plunger assembly comprises a cup shaped piston 15<SP>1</SP> of flexible resilient material having outwardly flaring side walls 15a<SP>1</SP> extending towards the rear of the container, all other components of the plunger assembly being spaced inwardly of the walls of the container and annular positive stop means 17<SP>1</SP> is provided fixed within the rearward portion of the container to cooperate with the outermost side wall portion 15a<SP>1</SP> to restrict further rearward movement of the piston whilst maintaining engagement between said outermost portion and the inner walls of the container. A sealing gasket 25<SP>1</SP> may be provided at the bottom of annular pockets 24<SP>1</SP>. A modified form of stop means formed by an annular member clamped between the end cap and the walls of the container is also described.
Patent GB-419717-A (GB)
Title: Floor bushing for central-heating pipes and the like
IPC: F16L5/06
Filed: 1934-05-22
Abstract: 419,717. Jointing pipes to floors. THYGESEN, E. S., 7, Boulevarden, Aalborg, Denmark. May 22, 1934, No. 15227. Convention date, May 20, 1933. [Class 99 (i).] A pipe 1 of a centralheating system is jointed to a floor box 3, screwed to or embedded in a floor 5, by asbestos packing 10 which is located at the chamfered top 7 of the box and is compressed against the pipe by an internallychamfered screwed cap 8 thereon. The box is internally threaded at its lower end to receive the usual floor lining pipe 2.
Patent GB-277736-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1926-06-18
Abstract: 277,736. Brown & Barlow, Ltd., and Brown, C. June 18, 1926. Spray carburettors. - In carburettors having a number of induction passages in parallel controlled by separate throttle valves adapted to be actuated in succession, the actuation is effected by peripheral gearing between the throttles. In one form, Fig. 1, the spindle of the primary throttle valve has a toothed sector or quadrant f which, after the main throttle has been almost fully opened, engages a toothed quadrant g on the second throttle to open the latter. The ratio of the gears is such that both valves are fully open together. As a modification, Geneva-stop mechanism mav connect the two valves. The second throttle may be closed by a spring. The primary passage may be provided with a main and a pilot nozzle, as in Specification 271.936, and the secondary passage with a main and an auxiliary nozzle, as in Specification 127,022.
Patent GB-731022-A (GB)
Title: Epicyclic gear box, especially for motor vehicles
IPC: F16H3/66
Filed: 1953-06-04
Abstract: 731,022. Change-speed gear. PAVESI, F. June 4, 1953 [June 5, 1952], No. 15387/53. Class 80 (2). A planetary gear giving a direct and a reduced drive comprises planet pinions 2, in a carrier 3, meshing an internally toothed annulus 6 connected to a main driving shaft 7 and a sun gear 1 carrying non-rotatably but axially slidably a coned friction member 16, movable in one direction to engage a coned surface on the annulus for direct drive and in the other to engage a stationary coned brake member 17 for reduced drive, the coned friction member 16 being moved in one direction by a single helicoidal spring 24 and in the other by a single fluid pressure operated piston 25 in a cylinder 26. The driven planet carrier 3 is fast on a shaft 10 carrying a sun gear 28 meshing planets 35 which in turn mesh double planets 39 meshing an internally toothed annulus 40 and a sun gear 41 of larger diameter than the sun gear 28. The interengaging planets are mounted in a carrier 32 connected to a final driven shaft 13, the carrier rotatably supporting the annulus 40 which can. be held stationary by a positive detent. The sun gear 41 is rotatable on the shaft 10 and can either be clutched thereto for direct drive by a multi-disc clutch 53 engaged against spring force when pressure fluid is admitted to a cylinder 55 and piston 54, via ducts 56, or held stationary for reduced drive by applying a hydraulically operated brake band 46 to a drum 44 secured for rotation with the sun gear. With the clutch 53 and brake 46 disengaged, reverse is obtained by applying the previously mentioned positive detent to the annulus 40. As a modification, the annulus 40 may be split into two parts of which the second meshes the planets 35 and may be held stationary for an additional reduced ratio.