baber/WOPTO huggingface dataset:
Patent GB-1326630-A (GB)
Title: Process for sweetening hydrocarbon streams
IPC: B01D15/00
Filed: 1970-10-14
Abstract: 1326630 Sweetening hydrocarbons by adsorption UNION CARBIDE CORP 14 Oct 1970 [15 Oct 1969] 48725/70 Heading C5E In a process for removing sulphur-containing compounds from a sour hydrocarbon stream by preferentially adsorbing the sulphur-containing compounds from the liquid phase on to a crystalline zeolitic molecular sieve, the zeolitic adsorbent is regenerated with a water-containing purge gas stream to leave 2 to 5 wt. % water on the regenerated adsorbent. Suitable feeds are those resulting from the destructive hydrogenation of coal, L.P.G., natural gasolines and other petroleum fractions boiling between - 44 and 180 F. and mostly comprising C 3  to C 6  hydrocarbons, and olefin-containing streams and contain sulphur as hydrogen sulphide, aliphatic and aromatic mercaptans, thiophene, 1,2-dithiol and carbonyl sulphide. Suitable adsorbents are mordenite, chabazite, erionite, faujasite and zeolites X, Y, L and # which can be tableted or pelletized, e.g. with a clay or alkali metal silicate binder. The sulphur compounds are adsorbed from a downwardly flowing liquid stream on to zeolitic adsorbent in one of two swing reactors at a liquid superficial linear velocity of 0.1-20 f.p.m. The adsorbent is regenrated with a hot purge gas, e.g. at 450- 700 F. and 15-100 p.s.i.a., containing moisture at a dew point of 10-160 F., e.g. methane, hydrogen, nitrogen, carbon dioxide or an oxygen-free mixture of carbon dioxide and nitrogen from the combustion of air and methane, or with a steam purge at 212-400 F. followed by drying the adsorbent to 2-5 wt. per cent water, e.g. with nitrogen, hydrogen or natural gas.
Patent GB-1032999-A (GB)
Title: Photoflash lamp
IPC: F21K5/08
Filed: 1964-12-01
Abstract: A lacquer for coating the envelopes (e.g. of glass) of flashbulbs comprises cellulose acetate and a mixture of two blue dyes and a red dye, the blue dyes having absorption maxima in the ranges 6600 to 6800 and 5600 to 6500<\>rA respectively and the red dye in the range 4800 to 5750<\>rA.  Specified solvents are acetone, ethanol, diacetone alcohol, ethylene glycol monomethyl ether.ALSO:Glass envelopes of flashbulbs are coated with a lacquer comprising cellulose acetate, two blue dyes and a red dye, the blue dyes having absorption maxima in the ranges 6600 to 6800 and 5600 to 6500 respectively and the red dye in the range 4800 to 5750 .  Specified solvents are acetone, ethanol, diacetone alcohol, ethylene glycol monomethyl ether.
Patent GB-1067690-A (GB)
Title: Shot-blasting apparatus
Inventor: THOMSON ROBERT SMITH
IPC: B24C9/00
Filed: 1964-12-03
Abstract: 1,067,690. Blasting. GUYSON INDUSTRIAL EQUIPMENT Ltd. Jan. 3, 1966 [Dec. 3, 1964], No. 49116/64. Heading B3D. Shot blasting apparatus has a cabinet comprising a primary portion 1 and a secondary portion or canopy 3. The portion 1 is provided with legs 2 or is supported on a pedestal, is of hollow inverted substantially pyramidal shape, and has a pair of opposing side walls 5 tapering downwardly to the front and interconnected by a rear wall 6, there being no front wall. Hinged to the rear wall 6 is the canopy 3 which is dished and has a top 7 with an inclined panel 8, tapered side walls 9, a front wall 10 and a rear wall 11. The panel 8 contains a transparent observation window 12. The front wall 10 incorporates a pair of openings each covered by a flexible sealing member 13 having slits therein to permit introduction of the operator's hands into the blast chamber. A handle 14 is secured to the wall 10. Means may be provided for latching the canopy in closed position. The canopy is retained in open position by a bracket 15 or by lever mechanism; manual opening of the canopy may be assisted by a counterweight, pneumatic or dash-pot device or spring also serving to retain it in open position. Housed in the blast chamber is a shot-blasting gun 16 having compressed air and abrasive supply pipes 17, 18. A pipe is connected to the bottom of the portion 1 for sucking away abrasive for recirculation. The gun 13 is controlled by a valve which may be operated manually or by a pedal; preferably the valve is linked to the canopy so that the valve is automatically opened when the canopy is closed, and vice versa. The outer perimeter of the canopy walls may be beaded or flanged so that abrasive particles do not lodge thereon. A gasket or seal may be secured to the edge of the canopy.
Patent GB-1423882-A (GB)
Title: Centreless grinding machines
IPC: B24B5/28
Filed: 1973-10-23
Abstract: 1423882 Centreless grinding RICHARDS MICRO-TOOL CO Inc 23 Oct 1973 [27 Nov 1972] 49389/73 Heading B3D A work holder and rotating mechanism for a centreless grinding machine comprises support means 30, 38 for rotatably supporting a workpiece W, a driving wheel 58 mounted for rotation and movably mounted to engage the workpiece and to be supported thereby so as to be movable towards and away from the workpiece during rotation, and means 62 for varying the pressure of the drive wheel against the workpiece. The support means consist of plates 30, 38 which have V-shaped recesses for rotatably supporting the workpiece and are adjustably mounted by blocks 28, 36 slidable along guideways 26, 34 on a support 24. A further block 46 is adjustable along guideway 26 and carries an adjustable holder 44 for an end stop 42. The support 24 is carried by a mount on a bed 12 longitudinally and transversely adjustable by handwheels 20, 22 on a base 10. The support is adjacent a grinding wheel 16 and carries a fixed arm 52 having a pivot 56 for an arm 54. One end of the arm carries the driving wheel 58 which is driven by a motor 60 and is urged against the workpiece with a pressure determined by the position of an adjustable weight 62. The axis of the driving wheel is inclined to that of the workpiece so that as the workpiece rotates it is also urged against the end stop. The arm is movable about the pivot 56 to an upper inoperative position for loading and unloading a workpiece.
Patent GB-1534709-A (GB)
Title: Heat stable organopolysiloxane composition
IPC: C08L83/04
Filed: 1975-12-03
Abstract: 1534709 Heat stable organopolysiloxane composition TORAY SILICONE CO Ltd 3 Dec 1975 [6 Dec 1974] 49627/75 Heading C3T A mixture for imparting heat stability to organopolysiloxanes comprises (1) a reaction product of (a) an alkali metal siloxanolate having from 1 to 3 organic groups attached to each Si through silicon-carbon bonds and containing an average of at least 3 organosiloxane units per molecule, with (b) a cerium salt of an organic carboxylic acid or cerium chloride, the said cerium salt being soluble in an aromatic hydrocarbon solvent or a chlorinated hydrocarbon solvent, and (2) at least one metal compound selected from organic carboxylic acid salts and alkoxy compounds of zirconium, titanium and iron. The organopolysiloxane which is heat stabilized may be a fluid or a silicone rubber stock and is generally an essentially linear diorganopolysiloxane of unit formula R x SiO (4-x)/2 , where R is an alkyl radical of less than 7 carbon atoms, phenyl, a #-perfluoroalkylethyl radical of 3-9 carbon atoms or a C 2 -C 6  alkenyl radical and x is 1À98 to 2À01. The organopolysiloxane composition may also contain inorganic fillers, metal soaps, pigments, vulcanizing agents and crosslinking agents. The alkali metal siloxanolate is preferably prepared by preparing a siloxanolate having alkali metal atoms on each of the terminal siloxane units and then further reacting with a linear diorganopolysiloxane to form a siloxanolate having alkali metal atoms on only one terminal siloxane unit. Suitable organic carboxylic acid cerium salts include cerium-2- ethyl-hexanoate and cerium naphthenate. Suitable Zr, Ti or Fe salts of organic carboxylic acids include those of 2-ethylhexanoic acid, naphthenic acid, oleic acid, lauric acid and stearic acid. In the Examples heat stability mixtures are prepared (1) by mixing either zirconium 2-ethyl hexanoate or tetrabutylzirconate with a reaction product prepared by reacting either cerium 2-ethyl-hexanoate or cerium chloride with a potassium siloxanolate, which siloxanolate has been prepared from KOH, hexamethylcyclotrisiloxane and octamethylcyclotetrasiloxane followed by further reaction with a trimethyl silyl-endblocked dimethylpolysiloxane of viscosity 20 c.s. in the presence of hexamethylphosphoramide; or (2) by mixing either tetrabutyltitanate or iron-2-ethylhexanoate with a reaction product obtained by reacting sodium trimethylsilanolate with a trimethyl silyl - endblocked dimethylpolysiloxane (20 c.s.) and then with either cerium chloride or cerium - 2 - ethyl hexanoate. The above heatstability mixtures were used to stabilize dimethylpolysiloxane fluids or a phenylmethylsiloxane-dimethylsiloxane copolymer fluid.
Patent GB-1089779-A (GB)
Title: Shell structure for stair steps
IPC: E04C/
Filed: 1964-12-07
Abstract: 1,089,779. Stairways. U. BERTELE. Dec. 7, 1964 [Dec. 7, 1963; Oct. 26, 1964], No.49638/ 64. Heading E1W. A stairway is built from end-supported hollow elements I, II of brick, concrete &c which are shaped to rest on each other, with or without spacers 12, each element having a longitudinal recess which is filled on site with reinforced concrete. The recess may initially be closed by a top wall which is removed to allow filling. The elements may have a cross-section which is substantially triangular, or substantially rectangular, Fig. 5 (not shown), and may be manufactured in opposed pairs, Fig. 2 (not shown) which are subsequently divided.
Patent GB-1330679-A (GB)
Title: Tri-level voltage generator circuit
IPC: H03K3/353
Filed: 1970-10-20
Abstract: 1330679 Transistor pulse circuits HONEYWELL Inc 20 Oct 1970 [12 Feb 1970] 49788/70 Heading H3T A three level voltage generator comprises two inputs V x , V y  providing binary drive signals and a switching circuit 15, 16 connected between the input V x  and an output terminal, the switching circuit having a first control input, e.g. the gate of FET 16, connected to the input V y  and a second control input, e.g. the gate of FET 15, fed with a signal from a feedback circuit driven from the output, the generator be such that: with both inputs in their first or second states the output depends on the state of one of the signals; and with V y  in its first state and V x  in its second the output is at an intermediate level determined by the state of one and by the signal from the feedback circuit. A voltage divider comprising the chain of FET's 10 and leakage resistance 33 biases FET 11 such that the potential at point 31 is - 10v. t 0  F. and the output zero when V x  = 0, V y  = O, V p  = - 20v. time t 0 . F ET's 11, 13 are both conducting, FET 12 is cut off decause V p  turns on FET 17 to discharge capacitor 34, and FET's 14, 15 are cut off. FET 16 has its source and drain at the same potential, V x  and output both 0, but has - 10v. on its gate so that it can conduct if a potential difference occurs between the source and drain. V p  then changes to 0 turning off FET 17. At a subsequent instant, t 1 , V x  changes to - 20v. allowing FET 16 to conduct thus lowering the potential at the output to turn on FET 14, and thus FET 12. With FET's 12, 14 conductive, the potential at point 31 falls turning off FET 16 to prevent any further change in the output voltage, which now is at - 5v. At time t 2 , V y  changes to - 20v. and FET 15 turns on lowering the output voltage to - 16v. At time t 3 , V x  reverts to zero and FET 15 conducts in the reverse direction causing the output to revert to zero once more. V y  then reverts to zero turning off FET 15 and at t 4  V p  reverts to - 20v. to turn on FET 17 and discharge capacitance 34, thus restoring the initial state. FET's 11, 12 may be earthed by a lead 37 or by FET 36 to minimize current when the three-level voltage is not being generated. FET 40 may be added to improve the time between cycles, and unit 39 may be included if it is required that V y  should revert to zero during the period t 2  to t 3 .
Patent GB-1126586-A (GB)
Title: Liquid discharge device for gas-liquid contacting trays
IPC: B01D3/20
Filed: 1965-11-24
Abstract: 1,126,586. Gas/liquid contact columns. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 Nov., 1965 [26 Nov., l964], No. 49957/65. Heading B1R. A downcomer for the discharge of liquid from a tray 2 to a subjacent (tray in a gas/ liquid contact column .provides an outlet 10 opening into .the space below tray 2 and an arrangement of plates. such as 5 and 6 which provides even under a low liquid loading a curtain of liquid from the lower end of the passage between the plates across the opening 10 thereby preventing upward passage of gas through the downcomer. In a modification the passage through which the liquid curtain is discharged is circular and in a further modification liquid is preferentially discharged down the side of a plate projecting above and below the tray and the passage through which the liquid curtain is discharged is defined by the lower end of this plate and a short plate adiacent the lower end of the plate and spaced therefrom.
Patent GB-1506719-A (GB)
Title: Air pumps
IPC: F16L33/00
Filed: 1975-10-30
Abstract: 1506719 Rotary positive-displacement fluidmachines L PINTER 30 Oct 1975 [19 Nov 1974] 50116/74 Heading F1F Apparatus for charging an inflatable article e.g. a boat, with compressed air comprises a motor operated by the exhaust-gases of a motor vehicle and driving a rotary air-compressor, which may be of the sliding-vane type wherein the vanes are disposed non-radially in a rotor 32. The motor too may be of the sliding-vane type and have its rotor 12 connected to the rotor 32 by a shaft 14 to which a thumb wheel 60 is secured to facilitate starting. When the apparatus is in use a gas-inlet sleeve 62 and an air-outlet sleeve are connected by hoses, Figs. 5 and 6 (not shown), to the exhaustpipe of the vehicle and the inlet valve of the inflatable article. A filter 50 may be lodged in the inlet of the compressor. The spent exhaust-gases escape through a port 28.
Patent GB-1088200-A (GB)
Title: Improvements in brake devices for motor vehicles
IPC: F16D55/00
Filed: 1965-11-25
Abstract: 1,088,200. Disc brake, cooling. E. CLAVEAU. Nov. 25, 1965, No. 50142/65. Heading F2E. A vehicle wheel 4 mounted on an axle 10 includes a disc brake having friction surface provided on the one hand by friction pads 6 embedded in the wheel and on the other by a surface 17 of a disc 14 slidably and non- rotatably mounted on the fixed structure 12 and urged towards the wheel against the action of springs 28 by two pistons 22 disposed in cylinders 20. In other embodiments the friction pads or annulus are provided on the movable member 14 and the light alloy wheel is provided with an inserted cast iron friction surface. The pistons 22 may be actuated by rods (36, Fig. 5, not shown) which extend through the rear walls of the cylinders and co-operate with a cam member 42 rotated by a manually operated lever 46. Flanges 38 are provided on the rods to maintain the volume of fluid constant when the brake is hand-operated. Cooling.-Cooling fins 2, 18, are provided on the friction members and the wheel hub flange 7 may be provided with radial fins to act as a centrifugal fan. The plate 14 has an air inlet 30 (Fig. 10, not shown) and a nozzle for connection to an air supply, e.g. an opening facing towards the front of the vehicle.
Patent GB-1162013-A (GB)
Title: Vented Closure Structures for Industrial Shipping Bags
IPC: B65D33/01
Filed: 1966-11-09
Abstract: 1,162,013. Bags with air vents. UNION CARBIDE CORP. 9 Nov., 1966 [9 Nov., 1965], No. 50254/66. Heading B8K. Air can escape from a bag of impervious material through an aperture 22 in a corner of the bag separated from the remainder of the bag by an incomplete join 20. The bag may be flat or block-bottomed. In the gussetted bag illustrated seals 20 joining the surfaces A, B; C, D of the gussets in pairs end short of the inner and outer folds 14, 16 of the gussets and of the bottom seal 18. This arrangement may be made in each of the four corners and holes 22 may be made through all four surfaces of each gusset. The bags are preferably formed by heat-sealing from plastics, but they may be formed by sewing or glueing from other impervious materials. The simple diagonal seals 20 illustrated may be replaced by sets of parallel heat-seals, or by discontinuous seals of other configurations.
Patent GB-1163317-A (GB)
Title: A Method of Rapid Alkaline Polymerization of Lactams by means of One-Component Catalysts
Inventor: BUKAC ZBYNEK
IPC: C08G69/20
Filed: 1966-11-10
Abstract: 1,163,317. Anionic polymerization of lactams. CESKOSLOVENSKA AKADEMIE VED. 10 Nov., 1966 [11 Nov., 1965], No. 50348/66. Heading C3R. Alkali or alkaline earth metal salts of betaketoamides R<SP>1</SP>HN.CO.CHR<SP>3</SP>.CO.R<SP>2</SP>, where R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are alkyl, cycloalkyl or aryl, are used without promoters as catalysts for the rapid anionic polymerization of lactams. In examples sodium or calcium salts of or are used for the anionic polymerization of caprolactam. In Example 6 70 mole per cent of caprolactam is copolymerized with 30% of C-methyl caprolactam.
Patent GB-1400020-A (GB)
Title: Lubricating greases
IPC: C09K3/00
Filed: 1972-11-01
Abstract: 1400020 Greases LABOFINA SA 1 Nov 1972 [15 March 1972] 50399/72 Heading C5F A lubricating grease comprises 5-25 wt. per cent, based on the weight of grease, of a thickening soap, 1-10 wt. per cent, based on the weight of grease, of a stabilized anionic emulsion of unoxidized polyethylene having a mean mol. wt. of more than 10,000, and a particle size between 0À02 and 0À5 microns, the emulsion containing 35-60 wt. per cent of polyethylene and 8-12 wt. per cent of anionic emulsifier, the rest of the composition being an oleaginous vehicle which may contain usual additives. In examples, the vehicle is mineral oil, naphthenic oil or a mixture of naphthenic oil and 2-ethylhexyl adipate. The soap may be a salt of 12-hydroxystearic, palmitic, oleic, benzostearic, acetopalmitic or toluostearic acid. Anti-oxidants, EP agents and rust preventatives are specified. The grease may be made by mixing the soap and base oil at elevated temperature adding the emulsion, cooling to form a gel, and homogenizing the gel.
Patent GB-1531349-A (GB)
Title: Sodium chloride flavour substitute composition and use thereof
IPC: A23L27/40
Filed: 1976-12-03
Abstract: 1531349 Saline flavourings MILES LABORATORIES INC 3 Dec 1976 [22 Dec 1975 18 Oct 1976] 50566/76 Heading A2B Foodstuffs are given a saline flavour by incorporating therein a glycinamide salt or a composition thereof, e.g. in amount 0.1- 4 wt.% of the foodstuff. The compositions may comprise 20-91 wt.% glycinamide hydrochloride, sulphate, glutamate, citrate, malate, adipate, tartrate, fumarate, phosphate or ascorbate and 9-80 wt.% of a flavour enhancer, e.g. glutamic acid or its Na, K, Ca and Mg salts, sodium 5'-inosinate and/or sodium 5'-guanylate, NaCl, and mixtures of glutamates or KCl with fumaric, glutamic, citric, malic, tartaric, adipic or ascorbic acid. The compositions may also include spices and flavoured hydrolysed vegetable protein.
Patent GB-1154659-A (GB)
Title: Fuel Nozzle Contaminant Trap.
IPC: F23D11/38
Filed: 1967-11-09
Abstract: 1,154,659. Edge filter. GENERAL MOTORS CORP. 9 Nov., 1967 [20 Feb., 1967], No. 50996/67. Heading B1D. [Also in Division F4] A fuel injection nozzle for a gas turbine engine has orifices 51, for secondary fuel, protected from clogging by an edge filter 21 - - 26 which defines apertures of smaller width than the orifices. Primary fuel passes through central passage 31 to orifice 54 without filtering. The edge filter comprises central hollow stem 22, casing 21, washers 23, 24, 26 and ring 25. Washer 23 is a press fit on stem 22 and holds the other members thereon, stem 22 being brazed to washer 26. Washers 24, 26 have radial grooves 42, (43), which form apertures in cooperation with ring 25 (Figs. 2, 3, not shown), while washer 23 and casing 21 define a complete annular gap therebetween which serves as the upstream aperture. The filter and the nozzle assembly are clamped to fuel supply boss 10 by cap 18. An alternative filter (Fig. 4, not shown) comprises a first annular gap and ten radial passages (91, 92). Gap and passage dimensions are exemplified.
Patent GB-1367012-A (GB)
Title: Containing such compounds
IPC: C10N30/10
Filed: 1972-11-07
Abstract: 1367012 Sulphur containing compounds CHEVRON RESEARCH CO 7 Nov 1972 [15 Nov 1971] 51373/72 Heading C2C [Also in Division C5] The invention comprises compounds of the following formulµ wherein R 1  and R 2  represent alkyl groups containing at least 4 C atoms which sterically hinder the adjacent OH or SH group, R 3 , R 4  and R 5  represent C 1-20  alkyl, hydroxyalkyl, hydroxyalkoxyalkyl, hydroxyalkylpoly-(oxyalkyl), aralkyl or aryl, providing that when R 3  is alkyl it contains at least 2 C atoms when R 1  and R 2  are both t-butyl; R 6  is C 1 -C 8  alkylene; each R 7  represents H, alkyl or aryl; X represents O or S, and Y represents H or a metallic cation. They may be obtained by combining a 4-thiol- or 4- hydroxy-dithiobenzoic acid or a metal salt thereof with 0 to 1 equivalent of a proton donor to obtain a first reaction product, and thereafter combining said first reaction product with from one-half to two equivalents of a compound selected from haloalkanes, α-halo-#-hydroxyalkanes, α-halo-#-hydroxyalkoxyalkanes, α- halo- #-hydroxy-polyalkoxyalkanes, halo-aralkanes and haloaryl compounds to give the required compounds. Examples are given for the preparation of the compounds. They are useful as additives for lubricating compositions.