baber/WOPTO huggingface dataset:
Patent GB-1480453-A (GB)
Title: Process for the preparation of alkenyl-succinic anhydride
IPC: C08F8/00
Filed: 1975-05-30
Abstract: 1480453 Lubricants RHONE-POULENC INDUSTRIES 30 May 1975 [31 May 1974] 23688/75 Heading C5F [Also in Division C3] Lubricating oil compositions comprise as dispersant, detergent, anti-rust and thickening agents alkenyl succinic anhydrides, or acids, or salts or reaction products thereof with polyols or polyamines, prepared by reacting maleic acid or anhydride with a polymer of molecular weight 150 to 100,000 derived from a C 2-30  monoolefin at 150‹ to 280‹ C. and 1 to 10 kg./cm.<SP>2</SP> absolute in the presence of 0À002 to 0À6 gram atoms of bromine per gram molecule of polyolefin. The bromine may be introduced as free bromine, hydrobromic acid, mono- or dibromosuccinic acid or anhydride or mono- or dibrominated polyolefin, preferably after 25 to 70 % of the olefin polymer has reacted. The olefin polymer may be a homopolymer, copolymer of two or more olefins, or copolymer of an olefin with a diene, triene or vinyl aromatic compound. Examples describe alkenyl succinic anhydrides prepared by reacting polyisobutylene with maleic anhydride in the presence of (3) hydrogen bromide, (4) hydrobrominated polyisobutylene, (5) dibromosuccinic anhydride, (6 to 11) polyisobutylene dibromide and (12 to 14) bromine.
Patent GB-1155641-A (GB)
Title: New Water-Soluble Reactive Anthraquinone Dyestuffs,their Preparation and Use
Inventor: ECKERSLEY DENNIS
IPC: C09B62/44
Filed: 1966-05-27
Abstract: 1,155,641. Anthraquinone dyestuffs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 May, 1967 [27 May, 1966], No. 23792/66. Heading C4P. The invention comprises compounds of the formula where B is an optionally substituted phenylene nucleus, R 1 , R 2  and R 3  are H or alkyl of 1-4 carbon atoms, R is a divalent aliphatic or carbocyclic radical, X is N, C-Cl or C-CN, W is Cl or Br, A is an optionally substituted benzene or naphthalene radical, Y is CO or SO 2 , Z is alkyl of 2 or more carbon atoms substituted in the #-position to the NH group by Cl or OSO 3 H and n is 1 or 2. The compounds are prepared by reacting one mole of a compound of the formula in either order with one mole each of compounds of the formulµ
Patent GB-398636-A (GB)
Title: Improvements in insect traps
IPC: A01M1/10
Filed: 1932-08-26
Abstract: 398,636. Insect traps. OPPERMAN, O. R., 3, Albemarle Street, Clerkenwell, London. Aug. 26, 1932, No. 23923. [Class 5 (i).] An insect trap comprises a jar 11 or similar receptacle in which the bait is placed and which is provided with a slightly truncated removable cover 4 of inverted conical shape forming a depending converging inlet, the cover 4 being formed with a series of smaller openings 1 in addition to the inlet opening 3 to allow the aroma of the bait to be readily perceivable and being provided with supporting means adapted to engage the rim 11a of the jar or the like. The cover is formed from a transparent or translucent flexible material, such as celluloid or cellulose acetate, and the edge of the inlet opening 3 is formed with integral flexible tongue-like extensions 7 which are adapted to be pressed outwards slightly as the insect enters the trap. The supporting means comprise wire supports 9 secured to the cover 4 by eyelets 10. In a modification, the cover 4 is pressed or moulded from a single disc of celluloid or the like and is provided with an integral flange adapted to clip over the edge of jar. The bait may be placed directly in the jar, or a spongy material saturated with the bait may be wired to the cover.
Patent GB-1424360-A (GB)
Title: Spotlieghts
IPC: F21V17/00
Filed: 1972-05-22
Abstract: 1424360 Lamps ROTAFLEX (GREAT BRITAIN) Ltd 11 May 1973 [22 May 1972] 23943/72 Heading F4R A spotlight comprises a parabolic reflector 1, a lamp holder 3 extending transversely of the reflector and supporting a bulb L, and a further reflector 12 disposed in front of the bulb and having a reflective rear surface for reflecting light from the bulb on to the reflector 1. The lamp holder is rotatable about its axis by means of a thumbscrew 8 slidable in a slot (9) in a cover member 4 secured to the reflector 1, the rotation enabling rough focussing of a general service filament lamp bulb. The reflecter 12 may have a part spherical rear surface 13 and be held to the reflector 1 by a thumbscrew 14 clamped to cover member 4.
Patent GB-323464-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B1/00
Filed: 1928-08-21
Abstract: 323,464. Coombe, C. E. Aug. 21, 1928. Compressing plant, general arrangement of ; valves, arrangement and actuation of.-In a refrigerating machine having a multiple effect " cooler e between the condenser b and the evaporator f, the valves for admitting the gas from the cooler e to the compressor are actuated by the circulating fluid. The compressor discharges through pipes d<1>, d<2>, separator d<3>, and pipe d<4> to the condenser, whence the liquefied refrigerant flows through a pipe el and valve n to the cooler e, and through a valve p and pipe f<1> to the evaporator, which is connected through a pipe f<2> to the compressor inlet port a<6>, Fig. 3. The gas space of the cooler e is connected by a pipe l and branches l<1>, l<2> to valve casings j<1>, j<2> containing sliding piston valves k<1>, k<2>. These valves are carried by double plungers k<3>, k<4> arranged in cylinders communcating at their outer ends by pipes m<1>, m<2> with the compressor discharge pipe d<4>, and at their inner ends by pipes m<3>, m<4> with the opposite inlet valve passages a<4>, a<5>. At the end of a compression stroke, the momentary peak pressure is transmitted through one or other of the pipes m<3>, m<4>, and overcoming the condenser pressure moves one of the piston valves to admit gas from the cooler to the compressor cylinder. As soon as the compressor piston begins the return stroke, the condenser pressure preponderates and again closes the correspond ing piston valve k<1> or k<2>.
Patent GB-922616-A (GB)
Title: Improvements relating to mounting arrangements for internal combustion piston engines in motor vehicles
IPC: B60K5/12
Filed: 1959-07-14
Abstract: 922,616. Mounting engines. DAIMLERBENZ A.G. July 14, 1959 [July 15, 1958], No. 24168/59. Class 79(3) A motor vehicle engine and clutch and gear housing 1, 2, 3 having horizontally disposed cylinders is mounted upon resilient bushes 6, 7, 8 which are more resilient axially than diametrically. The rear mountings 7 and 8 are coaxial.
Patent GB-479189-A (GB)
Title: Improvements in or relating to self-closing stop valves
IPC: F16K17/26
Filed: 1937-09-04
Abstract: 479,189. Self - closing stop valves. COCKBURNS, Ltd., and GRANT, T. Sept. 4, 1937, No. 24200. [Class 135] A self-closing stop valve of the kind in which a main valve member is moved to the closed position under emergency conditions by fluid pressure acting on a piston under the control of an auxiliary valve and in which an actuating spindle operatively connected to the main valve member for normal operation of the valve has a fluid pressure power device arranged to free the valve spindle for selfclosing actions when the control valve device operates to start said self-closing action. In the form shown in the Figures the main valve 1 is mounted in a cage 20, secured to a piston 2 having a screwed actuating spindle attached thereto. This spindle co-operates with a nut 31 rotatable by a hand wheel 30 and normally restrained against axial movement by a pair of sliding catches 33 slidable in guides 40 to engage a peripheral groove on the nut. Spindles 33<1> secured to the catches are provided with followers 43 engaging cam slots 431 in a plate rotatably mounted coaxial with the actuating spindle. This plate has an operating handle 49 and is also coupled by a link 45 with a piston 34. When the control valve operates to release pressure from the underside of the main piston to initiate the self-closing action, the exhaust fluid passes through pipe 37 to the second cylinder and moves the piston against the action of its loading spring to release the nut. As the piston 34 reaches the end of its stroke it opens an exhaust port 51 so preventing further movement. A restricted passage 52 connects the space below the piston with the exhaust port to prevent the accumulation of leakage and to permit the exhaust of pressure fluid during the time the piston is being returned by the spring to its initial position.
Patent GB-290881-A (GB)
Title: Dummy figure for attachment to racing animals
IPC: A63K3/00
Filed: 1927-09-15
Abstract: 290,881. Gaynor, T, F. Sept. 15, 1927. No Patent granted (Sealing fee not paid). Figures.-Racing animals are provided with dummy riders secured astride the animals. The figures A may be stuffed or inflated and are cemented or otherwise attached to a jacket B buttoned to the dog or other animal. The hands A<1> are detachably secured to certain of a series of buttons B<1> on the jacket in order to maintain the figure in the desired posture.
Patent GB-655699-A (GB)
Title: Improvements in or relating to the brightening of surfaces of aluminium or aluminiumalloy
Inventor: FRASCH JEAN
IPC: C25D11/16
Filed: 1948-09-16
Abstract: 655,699. Brightening chromium or aluminium alloys electrolytically. SOC. DE PRODUITS CHIMIQUES DESTERRES RARES. Sept. 16, 1948, No. 24344. Convention date, Sept. 24, 1947. [Class 41] A process of brightening the surface of an article of aluminium or aluminium alloy comprises degreasing the surface, immersing the article in a strongly acid phospho-chromic solution, submitting the article as anode to electrolyte treatment in an alkaline bath containing phosphate and aluminate ions, immersing the article again in a strongly acid phospho-chromic solution, and submitting the article to anodic oxidation in an acid electrolyte. The first-mentioned strongly acid solution preferably contains about 30 to 35 per cent phosphoric acid and about 10 to 15 per cent chromic acid and has a pH value below 1. The article may be degreased electrolytically in a solution of 5 per cent sodium carbonate, 5 per cent sodium phosphate and 2 per cent sodium silicate at room temperature,. with a voltage of 10 to 12 volts. The bath containing phosphate and aluminate ions may be prepared by dissolving trisodium phosphate and sodium aluminate in water or by dissolving aluminium phosphate in caustic soda solution. Potassium compounds may be used instead of sodium compounds. The anodized article may be sealed in boiling water or in an aqueous solution of nickel acetate.
Patent GB-301972-A (GB)
Title: Improvements relating to the sinking of lining walls, or walls of shafts, caissons, hollow piers, or the like structures
IPC: E02D23/08
Filed: 1927-09-16
Abstract: 301,972. Leighton, J. M. Sept. 16, 1927. Caissons ; piers.-In constructing and sinking caissons, hollow piers &c., a lubricated mould 1 is supported as by rods 1<a> and the cutting shoe 2<a> or like member is supported in the mould by members 3<a>, concrete &c. being then filled thereon to form the first part of the structure: when this concrete has set, the mould is filled and sinking of the structure is commenced, the structure, being added to by successive thin layers of concrete &c. and sinking controlled so that the concrete sets before leaving the mould. The members 3a may pass through the mould or otherwise or they may be replaced by sets of links 5, Fig. 2. Pipes 11 are embedded in the concrete for use in passing lubricant to the space between the structure and the surrounding soil. Sinking is continuous and is controlled by means of screws 3 connected to the membsrs 3<a> or links 5 and each carrying nuts 7, 8, on opposite sides of a member 6 pivoted to a trestle 4 and co-operating with tension and pressure indicators 9, 10.
Patent GB-296440-A (GB)
Title: Improvements in drying chambers with heating floor
IPC: F26B9/06
Filed: 1928-08-25
Abstract: 296,440. Soc. Anon. de Commentary Fourchambault et Decazeville. Sept. 1, 1927, [Convention date]. Drying ovens.-Furnace gases are led through two or more flues M arranged symmetrically in the floor T of a drying chamber and provided with adjustable openings O. The gases after use in the chamber pass through an adjustable grating and a hole N in the floor to the chimney. The furnace is immediately under the chamber, and is separated from the brickwork thereof by a beam j. Three furnace doors B, C, D are provided for stoking, cleaning and ash removal, the lower doors being pivoted on a large door. The air draught is regulated by holes Q on the doors, and a forced draught may be used, tubes G, H above and below the grate leading from the blower. Powdered coal may be charged on to a grate by door C. Several furnaces may be used for large chambers.
Patent GB-1083404-A (GB)
Title: Method for producing stable salts of dichloroisocyanuric acid
Filed: 1965-06-10
Abstract: Sodium and potassium dichloroisocyanurates are prepared by reacting dichloroisocyanuric acid and NaOH or KOH as a slurry in an aqueous reaction medium at a pH of 6-7 and a temperature of 5-65 DEG  C., separating the reaction mixture into substantially solid and liquid streams, drying the solid stream to obtain the desired product, and filtering the liquid stream to remove particles of greater than 15 microns size and recycling the filtrate to the aqueous reaction medium.  The alkali and acid may be reacted in stoichiometric proportions, and the separation may be facilitated by cooling to e.g. 20 DEG  C.  The product may be dried, e.g. to less than 0.2% H2O, by contacting with a heated gas, e.g. air.  The process may be carried out as a continuous or batch-wise process.
Patent GB-225010-A (GB)
Title: Improvements in or relating to spring clips
IPC: B62H1/00
Filed: 1923-10-03
Abstract: 225,010. Terry & Sons, Ltd., H., and Terry, A. E. Oct. 3, 1923. Supports attached to cycles. -A clip for securing a stand or support for a motor-cycle in its raised or out-of-use position comprises a pair of leaf springs 1, 2 secured to the rear mudguard 6 so as to be pendant therefrom, and having a pair of jaws 4, 5 with which a transverse bar of the stand can engage, an L-shaped lever 14 being provided to secure the jaws in gripping position. The lever 14 has projections 13 forming a pivot support in a U-shaped bracket 10 mounted on the jaw 5.
Patent GB-336345-A (GB)
Title: Improvements in the shanks of driven fastening devices
IPC: F16B15/06
Filed: 1929-08-12
Abstract: 336,345. Humphris, F. Aug. 12, 1929. Nails, serrated. - The surfaces of nails are provided with roughened panels surrounded by plain surfaces, the apices of the gmining or roughening ridges slightly projected above the plain surface. An S-sectioned rail, Fig. 2, has a grained panel a surrounded by a plain surface b forming a guiding edge. Fig. 9 shows a spike having a. grained panel a provided on its point part. In other forms the roughening is formed by small conical holes with surrounding ridges.
Patent GB-1431039-A (GB)
Title: Pressure transducer arrangements
IPC: G01L9/00
Filed: 1972-05-25
Abstract: 1431039 Automatic control of temperature EMI Ltd 15 May 1973 [25 May 1972] 24563/72 Heading G3R [Also in Division G1] A pressure transducer comprises a disc of silicon forming a diaphragm 1 and bearing an array of diffused resistors 2, 3, 4, 5 connected in a bridge network from which signals indicative of the pressure to which the diaphragm is subject are taken at terminals 7, 9 the bridge being itself connected as an arm of a second bridge network including further resistors 12, 13, 14 and from which an output signal indicative of diaphragm temperature is taken from terminals 15, 16 and compared in differential amplifier 17 with a reference voltage from potentiometer including resistors 18, 19, 20 across source + V,  - V, the resulting error signal being applied to a heating resistor 21 formed on the diaphragm which maintains the diaphragm within 2‹C of a reference temperature determined by the potentiometer. Alternatively the housing in which the diaphragm is mounted may be provided with a heater resistor instead of or in addition to heater resistor 21. Where both heater resistors are provided there may be a separate temperature sensing and control circuit for the housing including a copper resistance coil and a platinum resistance thermometer or thermistor for temperature sensing.
Patent GB-1210947-A (GB)
Title: Gas lighter with two-part tank
Inventor: DIETERLE HORST
IPC: F23Q2/42
Filed: 1968-05-23
Abstract: 1,210,947. Gas fuelled lighters. HEINRICH MALTNER G.m.b.H. 23 May, 1968 [24 May, 1967], No. 24781/68. Heading F4F. A gas fuelled lighter comprises a tank 1 having two parts 2, 3 of synthetic resinous material welded together, the part 2 forming a holder 9 for a filler valve retained therein by the part 3. A compression spring 17 acts between a projection 18 on the part 3 and the valve body 13 to urge the body 13 against an annular seal 12 in a bore 11 of the holder 9 to cover a fuel inlet bore 14, 15. To refill the lighter the body 13 is pressed inwards to open the bore 15, further movement of the body 13 causing the seal 12 to uncover a ventway 16. A wall 6 in the tank contains a flat tube, a bore 8 houses a burner valve, and the lighter ignition system is mounted by means of screw 21 engaging a blind bore 20 in the projection 18. In a modification (Fig. 2, not shown) the projection 18 bears legs (24) which act as stops for the seal 12.
Patent GB-739024-A (GB)
Title: Improved process for the recovery of serum albumin
Inventor: GROSSNICKLE MYRON DUBEL
IPC: C07K14/765
Filed: 1953-09-08
Abstract: Serum albumin is recovered from an aqueous solution of mammalian serum containing other protein constituents of mammalian blood by selectively coagulating the other protein constituents by heating the solution to a temperature between about 45 DEG  and 75 DEG  C., the solution being at a pH on the alkaline side of the isoelectric point of the serum albumin but not above 5.7 and containing caprylate ions at a concentration of between approximately 0.0075 and 0.02 M.  The aqueous solution should preferably contain not more than 12 per cent solids.  The caprylate ions are generally introduced by adding a water-soluble salt of caprylic acid to the solution.  The pH may be adjusted to required value, preferably about 4.9 to 5.5, by means of acids or acid salts such as hydrochloric, sulphuric and phosphoric acids or their acid salts and acetic or oxalic acid.  The denatured globulin and other non-albumin proteins are removed after the heating and purified albumin recovered from the residual solution by evaporation to dryness, if desired after dialysis, or precipitation by means of a water-miscible organic solvent. Examples describe the recovery of serum albumin from bovine plasma, hog plasma, lyophilized sheep plasma and bovine whole blood.  Blood serum may also be used. The aqueous solutions treated may contain small amounts of lower alcohol as when whole blood is treated with ethanol in 4 per cent concentration at pH about 7.3 to remove fibrinogen.
Patent GB-222674-A (GB)
Title: Improvements in or relating to lifting gears
IPC: B66C7/00
Filed: 1923-10-06
Abstract: 222,674. Morris, Ltd., H., and Smith, G. T. Oct. 6, 1923. Stowing chains. - In hoisting apparatus the slack portion X of the load chain is collected in a rotary box H driven through worm gearing by the hoisting mechanism.
Patent GB-239727-A (GB)
Title: Improvements in tools for grinding and polishing glass
IPC: B24D7/18
Filed: 1924-10-20
Abstract: 239,727. Losky, E. Oct. 20, 1924. Tools for grinding and polishing spherical &c. facets in crystal glassware comprise a short part-spherical cap f of metal provided with a tapered angular perforation whereby it may be mounted on a correspondingly-shaped pin d attached to the grinding spindle i. The tool is used with loose grinding material.
Patent GB-414908-A (GB)
Title: A new or improved machine for distributing washers upon cores in moulds, or for likepurposes
IPC: B29D99/00
Filed: 1933-09-08
Abstract: 414,908. Feeding washers to rubber heel moulds &c. TRENTON PATENTS, Ltd., 68, Aldersgate Street, London.-(Patten, W. H., and Scholz, A. M. ; Trenton, New Jersey, U.S.A.) Sept. 8, 1933, No. 24958. [Class 117.] A machine for locating concave washers on the pins of rubber heel moulds &c., comprises one or more shoots 76, Fig. 1, containing the washers and an oscillating hopper 36 with escapement means for supplying the washers in uniform position to the shoots, the machine being transversed across the moulds and the traversing movement utilized to oscillate the hopper. As described three shoots are provided on their undersides with guide plates to position them directly over the pins which pass through cut-away portions therein and successively enter the holes in the end washers and withdraw them from under spring retaining fingers 94 during the movement of the machine. The lateral shoots are preferably allowed a limited amount of oscillation about a vertical axis to adjust themselves to the out-ofline positions of the pins. The machine is mounted on wheels 12 and is dragged over the moulds by a handle 4A. The supply hopper 36 is oscillated about a horizontal axis at the upper ends of the shoots by a resilient connecting rod 38 and crankshaft 26 driven through gearing from the wheels 12. The bottom of the hopper comprises a part 46, Figs. 4 and 5, fixed to the sides and provided with grooves 48, 50 leading to the upper ends of the shoots and adapted to receive rows of washers. These grooves are preferably disposed obliquely so as to facilitate the entry thereinto of washers in the oscillating movements of the hopper. The escapement and selecting device consists of a part of the hopper bottom 52 which is hinged at its rear end 54 and has at its forward end bifurcated spring fingers 58 which lift out of the grooves those washers which are lying therein with their concave side uppermost. The plate 52 is normally acted on by a light spring 56 to close the exit from the grooves, and is lifted at the end of the counterclockwise rocking movement of the hopper by the abutment of a pin 31 with the frame of the machine to release the washers in the grooves. A second abutment 66 is provided which acts at the end of the clockwise movement of the hopper to lift the plate and release any washers that may have been trapped between the ends of the fingers and the bottom of the hopper.
Patent GB-207162-A (GB)
Title: Manufacture of naphthalene derivatives and of dyestuffs therefrom
IPC: C07C309/43
Filed: 1923-10-08
Abstract: 1-Oxynaphthalene-8-sulphonamide is prepared by the action, on 1 : 8-naphthsultone, of ammonia under such conditions that the saponifying action thereof is small compared with the addition effect; this may be attained by the action of ammonia of high concentration for a long time at a low temperature; the action of dilute ammonia at a high temperature is to be avoided, the product then being 1-oxynaphthalene-8-sulphonic acid.  Examples are given in which the naphthsultone is treated with water and gaseous ammonia in a closed vessel, or stirred with concentrated ammonia, or heated at 60-80 DEG  C. with water and ammonium carbonate.  Monoazo dyes and chromium compounds thereof. - The above-described 1-oxynaphthalene-8-sulphonamide, when coupled with a diazotized 1 : 2- or 2 : 1- aminonaphthol, or a substitution product thereof, yields mordant dyestuffs dyeing wool in blue to black shades when after-chromed; by treatment with agents yielding chromium the dyestuffs from chromium compounds which also dye wool in similar shades.  In examples, 1-oxynaphthalene-8-sulphonamide is coupled with 1-diazo-2-oxynaphthalene-4-sulphonic acid or its nitrated derivative; chromium compounds are made by boiling the dyestuffs with chromium formate, acetate, fluoride, or hydroxide, or with a mixture of chromium oxide, caustic potash and glycerine; or they may be made by the processes of Specifications 104.045 and 191,972.  The dyeing properties are also given of the corresponding dyestuffs from chlor- or brom-1-diazo-2-oxynaphthalene-4-sulphonic acid, 2-amino-1-oxy-4-nitronaphthalene-7-sulphonic acid, and the 4-methylene-sulphonic acid of 1-amino-2-naphthol.