baber/WOPTO huggingface dataset:
Patent GB-968102-A (GB)
Title: A process for preparing polyurethanes from polymeric materials
Inventor: TAYLOR JOHN ARTHUR GORDON
IPC: C08G18/64
Filed: 1961-04-28
Abstract: Polyurethanes are prepared by reacting an organic polyisocyanate or polyisothiocyanate with the product formed by reacting a polyglycidyl ether of a polyhydric phenol and a polyhydric alcohol in presence of a catalyst. The polyglycidyl ether may be derived from bisphenol A, resorcinol, hydroquinone, 4,41-dihydroxydiphenyl, or bis (hydroxyphenyl) methane.  Suitable polyhydric alcohols are aliphatic diols or triols, alkylene oxide polymers and copolymers and products prepared by polymerizing materials such as epichlorhydrin (see Specification 960,009). Reaction may be in an organic solvent (e.g. benzene) at -10 DEG  to 50 DEG C.  Preferred catalysts are acidic, e.g. boron trifluoride, sulphuric or phosphoric acid, stannic chloride, aluminium trichloride, titanium tetrachloride, aluminium alkyls, boron alkyls, or Friedel Craft catalysts. Examples 1-4 describe the production of intermediates from the diglycidyl ether of bisphenol A and (1) polypropylene glycol (average mol. wt. 400) and boron trifluoride ethrate in benzene.  (2) polypropylene glycol (av. mol. wt. 2000), (3) dipropylene glycol, (4) polypropylene glycol (av. mol. wt. 2,000) using sodium hydride as the catalyst.  The polymeric products may be reacted with a polyisocyanate or polyisothiocyanate to form a prepolymer which, if it contains free isocyanate groups may be reacted with a compound with a plurality of active H atoms to form a polyurethane plastic; or, if it contains free active hydrogen atoms may be reacted with a polyisocyanate or polyisothiocyanate to form the polyurethane plastic. Alternatively, the polyurethane plastic can be formed directly from the polymeric intermediate, a polyisocyanate or polyisothiocyanate and a compound containing a plurality of active hydrogen atoms. The polyurethane plastics may be produced as rigid or resilient foams by conventional techniques.  Example 5 describes the preparation of a flexible foam from the polymeric product of Example 4, toluene diisocyanate, water, triethylene diamine, silicone oil, and stannous octoate, the ingredients being mixed in a stirred mixing head and the foaming liquid cured in a mould.  Specification 868,996 also is referred to.
Patent GB-348889-A (GB)
Title: An improved process for producing low boiling oils from higher boiling oils
Filed: 1930-05-20
Abstract: <PICT:0348889/III/1> In a two-stage process for obtaining oils of low boiling-point from heavy oils the oils in the first stage are destructively hydrogenated in the liquid phase at relatively low temperatures, e.g. 750-925 DEG  F. and under 50-100 atmospheres pressure and the products are divided into fractions of low and intermediate boiling-point the intermediate fractions being converted in a second stage into low boiling products rich in aromatic constituents by heating them in the vapour phase at high temperature e.g. 850-1056 DEG  F., the hydrogen evolved in the second stage being used again in the first stage.  Crude oil is pumped through preheating coils 14, 12 to a heating coil 1 and reaction drum 3 supplied with hydrogen from a compresser 8 and lines 7, 10. The vapours produced pass to a fractionating tower 13, from which the low boiling-point fractions pass to a condenser 16 and separator 17.  The intermediate fractions condensed in the tower 13 are delivered through a pipe 22 to a second stage comprising a heating coil 24 and a vapour-phase reaction drum 25 filled with catalytic material and supplied with hydrogen from a heater 30. The products evolved are passed through an exchanger 29, where they are cooled by the hydrogen, to a fractionating tower 31, where the heavier fractions are condensed and returned to the coil 24 by a pump 23, while the lighter fractions pass on to a condenser 32 and are separated from the hydrogen in a separator 33.  The light fractions from each stage of the process are preferably blended to give a motor fuel having good antiknocking qualities.  The hydrogen from the vessel 33 is passed through a purifier 20 and returned by a pump 21 and line 7 to the system.
Patent GB-662575-A (GB)
Title: Improvements in the separation of a mixture of organic compounds
IPC: C07C29/86
Filed: 1949-06-13
Abstract: The production in purified form of individual components of a mixture consisting mainly of acetone, methyl ethyl ketone, alcohols, oxides, acetals, acetaldehyde, and higher complex aldehydes, e.g. a fraction of the products of the partial oxidation in vapour phase of hydrocarbons such as propane or butane, is effected by catalytically hydrogenating until the higher aldehydes and part of the ketones are reduced to hydroxy compounds, and thereafter separating individual components. Hydrogenation may be effected with Raney nickel and free hydrogen at 300-2000 p.s.i. and 150-250 DEG  F., the pH being kept at 5-7, using 3-12 per cent by weight of catalyst, for a time of about 1-2 hours.  The mixture of catalyst and organic compounds may be passed through a series of vertical towers while introducing hydrogen, preferably in excess, and which may be recycled, into the base of the first tower.  After separating catalyst by settling, the product is fractionally distilled and extracted to separate acetone, methyl ethyl ketone, methanol, tetrahydrofurane, n-propanol, isopropanol, and the butanols.
Patent GB-1146240-A (GB)
Title: Coil form and apparatus and method
IPC: H01F41/12
Filed: 1967-04-05
Abstract: 1,146,240. Coif formers. W. F. STAHL. 5 April, 1967 [13 July, 1966], No. 15701/67. Heading B8M. [Also in Division F2] A coil form of generally rectangular shape in cross-section, for use e.g. as core-like base for the winding of a transformer, coil, inductance &c. and having no spiral-like gap between the adjacent convolutions of the outermost spirally wound layer for the wire windings to drop into, comprises a plurality of adhesively united layers 11, 12 each layer including a ribbon of at least 0-005 inch thick spirally wound relative to the tube axis adjacent layers having the convolutions thereof overlapped, adjacent spiral convolutions in at least the outermost of said layers being spaced apart to define a spiral gap and a covering ribbon layer 15 spirally arranged relative to the tube axis and having convolutions in overlapped relation to said outermost layer convolutions to cover said gap, said covering ribbon layer having adjacent convolutions mutually overlapping at 18 and adhesively united to said of outermost layer and being constructed of a material having a thickness of less than 0-004 inch. In one form five layers of kraft paper such as 11, 12 of 0-005 inch thick having polyvinyl acetate adhesive are used to make a basic coil form, and then a ribbon 15 e.g. of 0-0015 kraft paper is applied, and adhesively bonded to cover the gaps 14. The coil form may be formed of layers of varying thickness from 0-005 to e.g. 0-010 inch and the layers may be of fish paper, phenolic-impregnated paper &c. The ribbon 15 may be of the same material or consist of a vinyl acetate film. A number of spaced coils (19), Fig. 1 (not shown), are wound along the form which is cut into lengths to provide individual coils. A square section mandrel is rotated by a mechanism 22, which has pressure rolls 24 and is mounted upon a frame 20, to form a coil 23 which is overwound by a ribbon 15 which first passes from a reel 25 through an adhesive applying apparatus 26 to be glued on its underside. A stripper mechanism 39, mounted on a carriage 37 reciprocable by a piston rod 38, is adapted to grip the completed form and move it horizontally off the rotating mandrel.
Patent GB-568343-A (GB)
Title: Improvements in and relating to apparatus for the electrical precipitation of suspended particles from gases
IPC: B03C3/62
Filed: 1943-09-24
Abstract: 568,343. Electrostatic precipitation apparatus. HOLMES & CO., Ltd., W. C., LAKE, E. M., and HOLMES, F. B. Sept. 24, 1943, No. 15717. [Class 39 (i)] The electrodes of electrostatic gas cleaning apparatus are formed of glass rods which may be coated with a metal such as lead, or left uncoated, the deposition of the material suspended in the gas, such as sulphuric acid, being relied on to provide the necessary degree of conductivity. A number of rods may be connected together in the form of a chain, being provided with hooks 6, Fig. 3, and eyes 5, Fig. 5, at opposite ends for this purpose. The upper rod has a ball end 2, Fig. 5, engaging a slotted socket 12 in a hook member 8 for suspension on a support 9 ; the lowest rod has a hook 7, Fig. 3, for attachment of a weight. The hook member 8 may have a metal coating over its whole surface or localised on the part contacting with the electrode and support.
Patent GB-685530-A (GB)
Title: Improvements in or relating to gas turbine plant
IPC: F01K23/10
Filed: 1949-06-13
Abstract: 685,530. Gas turbine plant. STEINSCHLAEGER, M. June 1, 1950 [June 13, 1949], No. 15728/49. Class 110(iii) A gas turbine power plant comprises a compressor supplying a gas producer and a combustion chamber, means, utilising the exhaust gases of the plant to preheat the air fed to the combustion chamber, means, such as a precipitator, for removing solids from the producer gases fed to the combustion chamber, at least two turbines arranged in series, a heat exchanger disposed between the combustion chamber and the first turbine to reheat the exhaust gases passing to the second turbine and a conduit to feed a part of the producer gas or the exhaust gases of a turbine or turbines to a steam boiler. The compressor may be a multistage compressor with interstage cooling effected by water or an air current. The fuel used in the steam generator may be solid fuels such as coal or coke in lump or powdered form, liquid, gaseous or liquefied gases such as liquefied propane, butane, methane or mixtures thereof. The air used in the producer is preheated by the exhaust gases of the plant and then saturated to obtain the steam required in the producer. The steam may be generated in a jacket of the producer. The gas producer may be replaced by a gas generator or vaporiser. Specification 575,895 is referred to.
Patent GB-329511-A (GB)
Title: Improvements in or relating to spark arresters for locomotives
IPC: F23J15/02
Filed: 1929-05-21
Abstract: 329,511. Carpenter, G. May 21, 1929. Baffles; ashes &c., collecting and removing.-A spark-arrester for locomotives comprises a vertical cylinder 17, Fig. 1, depending from an opening 16 arranged in a horizontal partition 15 in the smoke-box 11 and surrounding the lower end of the stack 12. Combustion products from the boiler tubes 10 enter the top of the cylinder and traverse a helical passage formed by a helical member 18 before entering the stack 12 below which is the exhaust pipe 13. Slots 20, Fig. 3, edged by baffles 19 are provided in the wall of the cylinder for the passage of ashes &c. which are deposited in the chamber 22 and withdrawn therefrom through a door 21.
Patent GB-799847-A (GB)
Title: Rotary dryers
IPC: F26B11/02
Filed: 1956-05-22
Abstract: 799.847. Drying apparatus. RENNEBURG & SONS CO., E. May 22, 1956 [June 8, 1955], No. 15751/56. Class 34(2) A rotary drying drum for comminuated material and through which a current of heated air is drawn by a fan comprises an entry neck 45, Figs. 1, 2, for the material and the air, an enlarged section 47 in which preliminary drying is effected, a still larger section 49 in which the main drying is carried out, and an outlet neck 51 connected to a housing 18. The housing has a material 71 discharging on to a conveyer and is connected by a duct 72 to a cyclone separator 19 from which separated fine material is discharged through an outlet 74, while the air is exhausted through a duct 73 connected to the fan 20 which is operable up to a temperature of 400‹F. Air is drawn through superposed ducts controlled by louvres 30, 31 into a housing 33 and thence through the neck 45 of the drum by the fan 20, the lower duct having steam heaters 22, 23, 24 supplied by a main 25. The louvres are adjusted through linkage 37 by an air motor 36, the supply of air to which from a compressor 35 is controlled by a potentiometer 34, regulated by a thermocouple 32 which is disposed in the housing 33, and which maintains the temperature of the air entering the drum at a desired value. The material is fed into the neck 45 by a power-driven screw conveyer 39 and carried into the section 47 of the drum by the air current flowing through the neck. Preliminary drying takes place during the passage of the material through the section 47, while the main drying is effected during its relatively slower passage through the section 49. Fine material is entrained by the air and carried through the neck 51 to the cyclone separator 19, while the coarse material is collected by the semicircular part 57 of a pipe 55 which rotates with the drum and discharges into the housing 18. The air flow through the duct 73 of the cyclone separator is adjusted by a damper 78 regulated by an air motor 77, the supply of air to which from the compressor 35 is controlled by a potentiometer 76 regulated by a thermocouple 75 in the housing 18 so as to maintain the temperature of the air leaving the drum at a desired value. The drum is tiltably mounted on an axle 122, Fig. 12, supported in bearings by a hydraulic jack 123, the pressure supply to which from a pump 130 is regulated by a manually-actuated valve 128. The inclination of the drum is shown on an indicator 134. The drum is driven through friction rollers 135, 136 fitted with neoprene tyres and mounted on a shaft 139 driven through reduction gear 138 from an electric motor 137.
Patent GB-1462549-A (GB)
Title: Hydraulic jack
IPC: B66F3/42
Filed: 1975-04-17
Abstract: 1462549 Hydraulic jacks SCAMBIA INDUSTRIAL DEVELOPMENTS AG 17 April 1975 [25 April 1974] 15868/75 Heading F1D In a hydraulic jack of the type shown in Figs. 1, 2, the piston-rod 3 is retracted by unscrewing a bolt 20, which allows liquid to return to a reservoir 2d through passages 19, 18 past a valve member 21, and, to accommodate the bolt at a convenient angle, the rolled base-plate 1 is bent upwards in the region through which the bolt 20 passes. The bolt is unscrewed by a handle 12 which is also used for operating the punch 8. The angle of the bolt 20 to the horizontal is between 5 degrees and 20 degrees. The base-plate 1 is of steel and is deformed cold.
Patent GB-420906-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B21/14
Filed: 1933-06-01
Abstract: 420,906. Water-tube steam boilers. WOOLNOUGH, W. H., and SENTINEL WAGGON WORKS, Ltd., 20, Iddesleigh House, Caxton Street, London. June 1, 1933, No. 15900. [Class 123 (ii)] In a boiler of the Yarrow type having a transverse wall 24 separating the furnace chamber 22 from a rear smoke box 25, to which the furnace gases pass around the transverse wall and through a side flue 34, the side wall 30 of boiler is off-set to form a second smoke-box 37 into which the gases flow from the smoke - box 25 through the back portion 16 of the tube bank on one side of the boiler. The bottom of the transverse wall terminates at an arch 28 over an extension 27 of the furnace chamber beneath the smokebox 25, a fire-door 29 being provided in the end wall of the extension. A superheater or feed heater 35 is arranged in the side flue 34. Specification 328,342, [Class 123 (ii)], is referred to.
Patent GB-1348761-A (GB)
Title: Devices for connecting roof sheathings to roof edges
IPC: E04D13/155
Filed: 1972-04-06
Abstract: 1348761 Securing roof flashing KLAUS ESSER KG 6 April 1972 [20 April 1971] 15974/72 Headings E1W and E2F A device for connecting a roof covering material 4 to a roof edge flashing comprises a universally adjustable joint which also allows rectilinear adjustment. An adjustable clamping foot 16 is secured to a roof surface adjacent a roof edge and adjustably holds a tubular arm member 15 for adjustment by displacement along and rotation about its longitudinal axis. A roof edge flashing support 1 is carried by a tube 8 similarly rotatably and displaceably clamped in a bracket 14 pivoted to the arm member 15 so that the relative inclinations of the longitudinal axes of each tubular element are adjustable. (For Figure see next column)
Patent GB-1179294-A (GB)
Title: Novel Unsaturated Ester Derivatives of Phosphoric Acid having Insecticidal and Acaricidal Properties
IPC: A01N57/10
Filed: 1967-04-07
Abstract: 1,179,294. Pesticides containing phosphate esters. BOEHRINGER I N G E L H E I M G.m.B.H. 7 April, 1967 [7 April, 1966; 25 Nov., 1966], No. 16041/67. Heading A5E. [Also in Division C2] An insecticidal or acaricidal composition comprises a carrier or diluent and a phosphate ester of the formula: in which R 1  and R 2  which may be the same or different are C 1 -C 4  alkyl groups, R 3  is H, Cl or Br, R 4  is H or CH 3 , R 8  is CN, -COOR 5  (wherein R 5  is a C 1 -C 6  alkyl group) or is -C(O)N(R 6 )(R 7 ) wherein R 6  and R 7  which may be the same or different are H atoms, straight or branched chain alkyl or cycloalkyl groups containing up to 6 carbon atoms, or are aryl or aralkyl groups, or together with the adjacent N atom represent a heterocyclic amino group e.g. morpholino or piperidino, and R 9  is H, or when R 8  is a CN group R 9  may additionally represent an alkyl group containing up to 4 carbon atoms. The carrier or diluent may be gaseous, solid or liquid and an emulsifier, wetting agent or sticking agent may be present. The composition may be in the form of a dust, wettable powder, spray formulation, suspension, emulsion, solution or aerosol.
Patent GB-1467672-A (GB)
Title: Stabilised epoxy resin
IPC: C08K5/3435
Filed: 1974-04-11
Abstract: 1467672 Stabilized epoxy resins CIBAGEIGY AG 4 April 1975 [11 April 1974] 16127/74 Heading C3B Epoxy resins are stabilized by at least one sterically hindered cyclic amine of formula and salts thereof: q is 1 or 2; x is an organic grouping to complete a 5-, 6- or 7-membered ring; R 1  and R 2  are methyl or together represent -(CH 2 ) 5 -; R 3  is methyl, R 4  is C 1-5  alkyl or R 3  and R 4  together represent, tetra- or penta-methylene, or if q = 1, Y denotes H or O, OH, optionally substituted alkyl or aralkyl, alkenyl, alkynyl or acyl; or if q = 2, Y denotes alkylene, alkenylene, alkynylene, cycloalkylene or aralkylene. The stabilizer may be present at 0À1-10% by wt. of the epoxy resin. Specific examples of I are N-cyclohexyl (2,2,6,6-tetramethylpiperidinyl- 4-)-acetamide; 3-n-octyl-7,7,9,9-tetramethyl- 1,3,8 - triazaspiro[4,5]decan - 2,4 - dion; and 1- chloro - 3,5 - bis - (2,2,6,6 - tetramethylpiperidinylamino-4)-s-triazine. The compositions may be cured by conventional epoxy resin curing agents.
Patent GB-594051-A (GB)
Title: Improvements in or relating to method of constructing joints in trusses made of structural tubes, and metal tubes for such constructions
IPC: E04B1/58
Filed: 1945-06-25
Abstract: 594,051. Joints for tubular structural members. FIERZ, H. June 25, 1945, No. 16128. [Class 20(ii)] Tubular struts in frameworks for aircraft, scaffolding, &c., are joined to other structural elements by distorting the tube transversely in the neighbourhood of the joint to produce a cross-section in which in the central portion the tube walls are flat and in close contact while the adjacent marginal portions are bulbed, the flat portion being used for interconnection by rivets for example with the other joint elements such as gusset plates. To produce the desired cross-section-which minimises the weakness caused by the flattening of the tube-the tube 1 is first pressed into a kidney shape, round fillers 3 are then introduced into the marginal portions 4 and the pressing continued to bring the tube walls into contact between the fillers 3. The fillers 3, which may be of round bar when the joint is at the end of a tube, or flexible steel cable when the joint is intermediate the ends, are then withdrawn. The bulbed margins 4 may be wholly to one side of the flat portion as in Fig. 3 or symmetrically disposed when the part to which the tube is connected is sufficiently narrow .to fit between them.
Patent GB-675970-A (GB)
Title: Process of producing a reinforcing steel bar for concrete structures
Inventor: FROKJAER-JENSEN AXEL
IPC: C21D7/10
Filed: 1949-06-17
Abstract: 675,970. Making bars; mechanically altering physical structure. TENTOR STEEL CO., Ltd. June 17, 1949, No. 16176/49. Drawings to Specification. Classes 83 (ii) and 83 (iv). A process for increasing the strength of a steel bar for reinforced concrete as described in Specification 616,803 is characterized in that, in cold stretching, the steel is stretched beyond the yield region to such an extent that each bar undergoes uniform extension and in that the pitch of the twist, which may be effected, wholly or in part, at the same time as the stretching, lies between 5 and 100 times the diameter of the bar. Twisting may be included in the first part of the cold working and the last part may comprise twisting alone. The permanent extension may lie between 1 and 15 per cent.
Patent GB-694791-A (GB)
Title: Vehicle frame
IPC: B62D21/10
Filed: 1950-06-28
Abstract: 694,791. Motor-vehicle frames. FIAT SOC. PER AZIONI. June 28, 1950 [June 30, 1949], No. 16198/50. Class 79(iv) A vehicle frame comprises channel-shaped side members, secured to a metal floor, which at their central portions are approximately in line with the wheels and which converge at each end, cross members being provided one of which is arranged level with the lower edge of the dashboard and is connected at its ends with the side members by means of inclined members which merge into the side members. As shown, the inverted channel side members 2 are secured to the metal floor 1 provided with a propeller shaft tunnel 3. A U-shaped frame cross member 9, 7 is arranged inclined rearwardly with its centre horizontal portion 7 at the lower edge of the dash board. Each side portion 9 thereof is secured to the corresponding longitudinal 2 by inner and outer triangular plates. At the front an arcuate cross-member 6 of closed inverted channel section is secured to the underside of the longitudinals 2. The engine sump 11 is recessed at 10 to receive the cross member 6, and also at the front 10<SP>1</SP> to receive the steering linkage. The front wheels are independently suspended by upper .and lower links 14, 15 articulated to the longitudinals and the cross member 6 respectively, a stabiliser bar 17 being provided. The rear axle is carried by radius rods 20 and is sprung by two helical springs 21 and stabiliser bars 23. Specification 679,772, [Group XXXII], is referred to.