baber/WOPTO huggingface dataset:
Patent GB-943958-A (GB)
Title: Novel steroid compounds and processes for their preparation
IPC: C07J7/00
Filed: 1960-12-22
Abstract: The invention comprises 1b -formyl methylene - 2a  - acetonyl - 4bb - methyl -8ab -perhydrophenanthrene-4, 7-dione, 16-#xhydroxy-18-nor-pregnane-3, 11, 20-trione and processes for the preparation thereof in which the 16, 17-ozonide of 17-methyl-18-nor-D-homoetiochol-16-ene-3, 11-dione is subjected to reduction to obtain the desired 1b -formylmethylene-2a -acetonyl -4bb -methyl-8ab -perhydrophenanthrene-4, 7-dione in solution which on evaporation gives 16#x-hydroxy -18-norpregna-3, 11, 20-trione. Reduction may be effected by zinc and acetic acid. Specification 943,957 also is referred to.
Patent GB-1201379-A (GB)
Title: Process for the electrolytic production of olefin oxides from olefins
IPC: C25B3/23
Filed: 1967-10-04
Abstract: 1,201,379. Electrolytically producing olefin oxides. FARBENFABRIKEN BAYER A.G. 4 Oct., 1967 [14 Oct., 1966], No. 45199/67. Heading C2C. [Also in Division C7] Olefin oxides are electrolytically produced from olefins, e.g. ethylene, propylene, butylene, or halogenated mono-olefins, e.g. allyl chloride, using a diaphragm cell 1 with an aqueous electrolyte containing an alkali metal halide, e.g. NaCl and/or KCl, wherein a halogen component of the anolyte or a hydrolysis product thereof is reacted in a reactor 5 outside the cell with an olefin or a halogenated mono-olefin, e.g. introduced with an inert paraffin gas through a gas distributer 9, to form the corresponding halohydrin, which is subsequently reacted with the alkaline catholyte to form the olefin oxide by dehydrohalogenation. Preferably, circulation of the anolyte is maintained between the anode compartment and the reactor by pipes 6, 7 and the upward flow of gas in the reactor. A component stream from the anolyte circuit may be delivered through the diaphragm 4 to the catholyte compartment (Fig. 1) or reacted with the alkaline catholyte outside the cell in dehydrohalogenation reactor 17 as shown, the electrolyte being returned to the cell via pipe 12  after separation of the olefin oxide formed through pipe 15, preferably facilitated by steam and/or vacuum. Similarly, circulation of the catholyte may be maintained inside or outside the cell, e.g by pipes 19 and the upward flow of hydrogen in the cathode compartment. The component anolyte streams from a plurality of cells may be reacted together with the olefin or halogenated mono-olefin in one reactor, and the component catholyte streams thereof then reacted in one dehydrohalogenation reactor. The anode 2 may be of graphite, or Ti coated with a Pt group metal, the uncoated parts being protected with an oxidic layer. The cathode 3 is preferably a wire gauze of iron or steel. The diaphragm 4 may be of asbestos, polyfluorohydrocarbons, polyolefins, e.g. polyethylene, -propylene, -butylene, polystyrenes, polyacrylonitrile, PVC or copolymers of vinyl and vinylidene chloride, in the form of porous plates or woven fabrics; porous Ti may also be used. The pressure in the anode compartment is preferably higher than that in the cathode compartment.
Patent GB-1222050-A (GB)
Title: Linear condensation polymers containing carbonamide and heterocyclic linkages
IPC: C08G73/06
Filed: 1968-01-10
Abstract: 1,222,050. Polyamide - polybenzoxazoles. MONSANTO CO. 10 Jan., 1968 [13 Jan., 1967], No. 45282/70. Divided out of 1,220,451. Heading C3R. [Also in Division C2] The invention comprises polymers having recurring units of formula They may be prepared from the corresponding heterocyclic diamine and phthaloyl halide or from the corresponding polyamide polyphenol having, for example, recurring units of formula The products may be made into films and fibres. In Example I 2,4-diaminophenol dihydrochloride is reacted with isophthaloyl chloride in polyphosphoric acid to produce the heterocyclic diamine which is polymerized with terephthaloyl chloride in a mixture of hexamethyl phosphoramide and DMA containing LiCl. In Examples II and III an amino-nitrophenol is reacted with a phthaloyl chloride to produce the corresponding diamide of the acid; this is reduced to the corresponding diamine which is polymerized with a phthaloyl chloride in N-methylpyrrolidone containing LiCl. The resulting polyamide-polyphenol is made into a film and then heated to cyclize it.
Patent GB-1410786-A (GB)
Title: Detonators
IPC: F42C11/02
Filed: 1972-10-02
Abstract: 1410786 Detonators DEFENCE SECRETARY OF STATE FOR 2 Oct 1973 [2 Oct 1972] 45429/72 Heading F3A In a detonator operable by electrical signals derived from a piezoelectric transducer element when subjected to mechanical pressure, the piezoelectric element has a resistivity of less than 5 Î 10<SP>11</SP> ohm-cm., in order to provide safety against premature detonation. The element may be made from a polycrystalline ceramic comprising lead zirconate and lead titanate, doped with uranium. Strontium may replace part of the lead in order to restore the dielectric constant and planar coupling coefficient to their original values before the addition of uranium. As shown, the detonator comprises piezoelectric disc 5, brass disc 2, apertured spark-gap washer 3, anvil 6, and baseplate 7; R1 is a high resistance, R2 a low resistance, and SW the arming switch. In a modification, Fig. 2 (not shown), two additional brass plates are provided, one on each side of the piezoelectric disc.
Patent GB-1056760-A (GB)
Title: Retractable undercarriages
Inventor: PERDUE JACK
IPC: B64C25/34
Filed: 1963-11-18
Abstract: 1,056,760. Retractable undercarriages. ELECTRO-HYDRAULICS Ltd. Nov. 13, 1964 [Nov. 18, 1963], No. 45483/63. Heading B7G. A retractable aircraft undercarriage has a wheel assembly comprising a member pivoted on the aircraft about a fore-and-aft axis, and a power-operated actuating shaft, movement of which is transmitted through a retracting rod connecting the shaft to the member causing the member to pivot about the axis. As described, there are three wheels mounted on trailing links 13A, 13B, 13C, pivotally mounted on member 1A, 1B, 1C, and the members are each mounted on a pin 2A, 2B or 2C and are connected through arms 18, 19 (Fig. 2, not shown), and rods 20A, 20B, 20C to the actuating shaft 21. To retract the wheel assembly the shaft 21 is moved longitudinally by an hydraulic jack, displacing the rod 21 to the broken line position. The hydraulic jack may be replaced by a rack-and-pinion, or the shaft 21 may be threaded, and the rods 20A, 20B, 20C connected to nuts engaging it (Figs. 3 and 4, not shown), to form a screw jack. The links 13A, 13B, 13C may be a leading link, or may carry two wheels.
Patent GB-1406088-A (GB)
Title: Seating units
IPC: A47B83/02
Filed: 1972-10-03
Abstract: 1406088 Multiple seating for use with tables KIKU CO 3 Oct 1972 45488/72 Headings A4H and A4J The end portions 14 of a multiple seating unit 10 which is used around a table 40 are pivotally connected to the central portion 12 of the unit for movement about vertical axes 32, the ends 14 being movable to an out of the way position to allow access to the central portion. The end portions may be moved on castors or rollers (30) Fig. 2 (not shown). Each end portion is provided with a vertically slidable locking rod (34) engaging an opening 38 in the floor. A U-shaped unit may be used around a rectangular table.
Patent GB-980363-A (GB)
Title: Improvements in or relating to gas turbines
IPC: F23R3/06
Filed: 1962-12-04
Abstract: 980,363. Gas turbine plant. J. JERIE. Dec. 4, 1962 [Dec. 4, 1961], No. 45872/62. Headings FIG and FIT. In an inlet housing for the inlet guide vanes of a gas turbine, having an outer casing filled with compressed air and an inner casing or guide wall forming the feed duct to the guide vanes, the inner casing or guide wall is provided, upstream of each guide vane, with one or more bores lying on the streamline which divides the flow over the dorsal and ventral parts of the guide vanes, the distance of the bores from the leading edges of the guide vanes not exceeding twice the pitch of the vanes, as means for admitting cooling air. In an inlet of a gas turbine having guide vanes 21, Fig. 3, compressed air passes from the space between outer and inner casings 16 and 19 of the inlet, through bores 22a, 22b, 22c, arranged on flow lines 23, to cool the power gases supplied through ignition tubes 18. Upstream of each vane 21<SP>1</SP>, the bores 22b and 22c are replaced by a bore 25 in a radial part of the inner casing 19. In an alternative embodiment, Fig. 1, in which the flow lines are straight and parallel, bores 13a, 13b, 13c and 14a, 14b, 14c are provided for each guide vane 1. The bores may all be of the same size and instead of being circular they may be oval, of tear-drop shape or substantially rectangular with a single baffle, Fig. 6 (not shown), or a double baffle Fig. 8. Tubular members, for directing the compressed air to the plane extending through the leading edges of the guide vanes, may be arranged in a circular bore, Fig. 10 (not shown), or in an oval bore, Fig. 11, thereby providing upstream of the tubular member, an auxiliary air feed, which cools the tubular member.
Patent GB-1338013-A (GB)
Title: Deep-freezing apparatus
IPC: F28D11/00
Filed: 1971-10-04
Abstract: 1338013 Refrigerating foodstuffs FRIGOSCANDIA CONTRACTING AB 4 Oct 1971 [8 Oct 1970] 46095/71 Heading F4H [Also in Division B8] Apparatus for deep-freezing foodstuffs e.g. spinach comprises two co-operating tracks 1 and 2, the outer track 1 being provided with transversely extending ridges, opposing spray units 3 and 4 for spraying liquid coolant on to the portions of the tracks which are co-extensive, and means 7 and 8 for breaking the frozen cake 6 detected from the tracks 1 and 2 into bars along the transverse grooves formed in the cake by the ridges 5. The tracks 1 and 2 are spaced apart a greater distance than the height of the ridges 5 by plastics strips 13.
Patent GB-981007-A (GB)
Title: Improvements in gas-heated apparatus having a closed combustion chamber
IPC: F24C15/00
Filed: 1963-11-22
Abstract: 981,007. Balanced flue connections; chimneys. JUNKERS & CO. G.m.b.H. Nov. 22, 1963 [Dec. 10, 1962], No. 46147/63. Headings F4J and F4W. The waste gas duct outlet aper ture of a gas-heated apparatus' sealed from its containing room and connected to a ventilated chimney of the Se-duct type, is arranged in plane lying at an acute angle to the adjacent chimney wall, the top edge of said aperture being flush with said wall but set back relative to its bottom edge which projects forwardly into the chimney space. Each room-sealed combustion chamber 16, 17, 18, 19 and 20 of respective storey levels 11, 12, 13, 14 and 15 is provided with an air inlet duct 26 enclosing a waste gas duct 25, both ducts being connected to a chimney 21. In the basic embodiment of storey level 11, the waste gas outlet aperture 30 is inclined at an acute angle to the adjacent chimney wall 31, the top of said aperture 30<SP>1</SP> being flush and set back from its projecting bottom edge 30<SP>11</SP>. In the embodiment of storey 12, a baffleplate 32 extends across the inlet duct at the base of the waste gas duct in a plane which is parallel with the adjacent chimney wall 31 and which may extend as far forward as to be coincident with said wall, the depth of said baffle being equal to the distance the aperture bottom edge projects into the chimney space. In the embodiment of storey 15, an inclined deflector plate 33 is disposed between each of the side surfaces of the waste duct and the opposite inlet duct side wall. An additional deflector plate may be disposed between the aperture bottom edge and the base of the inlet duct. The embodiments of storeys 13 and 14 show three such plates incorporated, said deflectors being inclined and flat in the former and horizontal with dependent downwardly-curved lips 34<SP>1</SP> in the latter. Though the waste gas duct is shown enclosed by the air inlet duct in the preferred embodiments, the basic arrangement of the outlet aperture of the waste duct relative to the chimney is applicable to constructions in which inlet and waste gas ducts are separate.
Patent GB-1123266-A (GB)
Title: Apparatus and process for induction heating
IPC: B29C35/16
Filed: 1966-10-17
Abstract: 1,123,266. Seaming non-metallic sheet material. W. C. HELLER. 17 Oct., 1966 [19 Oct., 1965], No. 46267/66. Heading B5K. [Also in Division H5] An apparatus for sealing together plastics webs 36, 38 with iron oxide particles 40 as a susceptor, comprises a conductor 9, 13 connected to a H.F. source and having portions 11, 17 providing axles for conductive pressure wheels 22, 24, the spacing of the conductor portions and wheels being such that the current flows as indicated by the arrows and a concentrated magnetic field is provided in the portions of the wheels adjacent the clearance 30. The axles may have flanges (50-56, Fig. 5). The conductor comprises copper tubing supplied with a water coolant. Wheels 22, 24 may have a low friction insulating coating (25, Fig. 3), e.g. tetrafluoroethylene. Additional pressure wheels (32, 34, Fig. 1) may be used. In a modification (Fig. 4), a second set of similarly mounted pressure wheels may be provided on bent conductor portions (44, 46) to allow heating in two steps.
Patent GB-1445877-A (GB)
Title: Electrostatic wet-developing method and apparatus
IPC: G03G5/00
Filed: 1973-10-04
Abstract: 1445877 Developing electrostatic latent images; electrostatic ink FUJI XEROX CO Ltd 4 Oct 1973 [5 Oct 1972] 46505/73 Heading G2H Latent image 24 is developed by electrostatic attraction of resistive ink 16, which is held in an array of depressions 14 in the surface of an electroconductive, elastic supply member. Preferably the supply member consists of an elastomer layer 10 overlying a substrate 12, and may be in the form of a roller co-operating with a cylindrical imagebearing body. Ink compositions which are usable comprise carbon black dispersed in polypropylene glycol or paraffin, with triethylene glycol dicaprilate or alkylated polyvinyl pyrrolidone.
Patent GB-1085125-A (GB)
Title: Method of removing carbon monoxide from gases
IPC: C01B31/26
Filed: 1964-11-16
Abstract: Town gas containing less than 10% CO is purified by heating with H2S or S the H2S may be that present in the gas to form COS which is then reacted with NH3 to form urea. The term town gas includes illuminating gas and coke works gas.  The heating can be at 200-1200 DEG  C. for 0.01-100 seconds in the presence of catalysts, e.g. Al2O3, silica gel or pumice stone. These catalysts can be coated with a Group VI metal oxide or sulphide, e.g. of W and/or Mo, and a Group VIII metal can also be present. H2S formed by reaction of COS with NH3 can be recycled.  The COS can be washed out of the gas with a solvent in which it is reacted with NH3, or the gas can be cooled with or without the use of pressure to separate the COS for further processing, or the COS + NH3 reaction can be carried out in the gas phase on porous catalysts e.g. active carbon.ALSO:Town gas containing less than 10% CO is purified by heating with H2S or S to form COS which is then reacted with NH3 to form urea. The term town gas includes illuminating gas and coke work's gas.  The heating can be at 200-1200 DEG  C. for 0.01-100 sec. in the presence of catalysts, e.g. Al2O3, silica gel or pumicestone. These catalysts can be coated with a Group VI metal oxide or sulphide, e.g. of W and/or Mo, a Group VIII metal can also be present.  H2S formed by reaction of COS with NH3 can be recycled.  The COS can be washed out of the gas with a solvent in which it is reacted with NH3, or the gas can be cooled with or without the use of pressure to separate the COS for further processing, or the COS + NH3 reaction can be carried out in the gas phase on porous catalysts, e.g. active carbon.ALSO:Town gas containing less than 10% CO is purified by heating with H2S or S to form COS which is then reacted with NH3 to form urea. The COS can be washed out of the gas with a solvent in which it is reacted with NH3, or the gas can be cooled with or without the use of pressure to separate the COS for further processing, or the COS + NH3 reaction can be carried out in the gas phase on porous catalysts, e.g. active-carbon.
Patent GB-1394061-A (GB)
Title: Spiral staircases
IPC: E04F11/108
Filed: 1971-10-07
Abstract: 1394061 Spiral staircases C C R THURSTON 6 Oct 1972 [7 Oct 1971] 46601/71 Heading E1B A step for a spiral staircase comprises a tread 8 a reinforcing member 14 and a plurality of portions 2, 3, 4 and 5, therebetween defining a region at one end of the tread through which a newel post of the staircase passes, at least two of the portions 4 and 5 being integral with cantilever arms for supporting the tread. The tread 8 has an annular member 11 integral therewith and this member together with a further annular member 12 confine the portions 2-5 and in the staircase are compressed by the newel post being tensioned. The elements are preferably made of wood but may be metal or plastics.
Patent GB-1029950-A (GB)
Title: Apparatus for supplying tire-building stock
IPC: B29D30/30
Filed: 1963-11-26
Abstract: 1,029,950. Roller conveyers. FIRESTONE TIRE & RUBBER CO. Nov. 26, 1963 [March 13, 1963], No. 46627/63. Heading B8A. [Also in Division B7] A server 10 for supplying tyre tread stock 48 to a tyre building drum 50 comprises a reciprocable carriage 12 including a roller conveyer 30 fixed thereon and a pivotable roller conveyer 34. The tread stock is positioned with one end on each conveyer dashed-line position) and is transferred by hand to the drum.
Patent GB-1222867-A (GB)
Title: A holder for an article
Inventor: KECK KARL MATTHEW
IPC: B26B21/52
Filed: 1968-10-02
Abstract: 1,222,867. Handles; gripping tools; razors. K. M. KECK. 2 Oct., 1968, No. 46830/68. Headings B4B, B4K and B4W. [Also in Division E2] A holder (Fig. 9), for an article e.g. a bladecarrier (Fig. 1), or toothbrush &c., comprises a body 17 formed with a channel-section part 19 defined by a pair of jaws 18, and a pair of extrusions 23 hinged at 24 to the body 17, which extensions may be folded over the jaws to shield the article (Fig. 12, not shown), or may be folded back to act as a handle (Fig. 13, not shown). The blade-carrier, which may mount four double-edged blades 6, is provided with recesses 16 at each end which allow it to be indexed, when held in the holder, to present adjacent edges of a pair of blades for use at the slit 20 between the jaws 18, the latter having formations 22 (or other contour), to engage the recesses 16. The blades are secured to arms 5 of the carrier either by means of studs 9 passing through holes in the blades and subsequently mushroom-headed, or by pins or screws. The carrier may be engaged in the holder by snap action or may be retained by a washer. Extensions 23 may be locked together in either folded position by co-operating parts 31, 32.
Patent GB-1270869-A (GB)
Title: A continuous casting apparatus
IPC: B22D11/06
Filed: 1969-09-24
Abstract: 1,270,869. Continuous casting. SOC. NOUVELLE SPIDEM. 24 Sept., 1969 [25 Sept., 1968], No. 47087/69. Heading B3F. In a wheel-and-belt casting-machine, the region where the metal is contained in the wheel groove 10 by the belt 3 is surrounded by jackets 20, 21, 22 through which a coolant flows and which are stationary when the casting wheel 11 is rotated. Through holes 26 in the inner walls of the jackets, coolant flows into the spaces 46, 47, 48 surrounding the rim 2 of the wheel 11 to flow over ribs 26a on the rim. It is eventually collected in a receptacle (49) after leaving through gaps left between the coolant jackets 20-22. There are two successive groups of jackets 20-22 along the casting region and radial partitions 23-25 divide the jackets into compartments. Separate conduits 27 (37, 38, 39) for supplying coolant to the jackets have individual valves (40-43) for flow control and these may be electromagnetic for automatic regulation. The casting retains heat until subsequently treated in a finishing machine to which it is passed by guides (8, 9).
Patent GB-1171373-A (GB)
Title: Process for Preparing Primary Normal Alchols
IPC: C07C17/08
Filed: 1967-10-17
Abstract: 1,171,373. Preparation of primary normal alcohols. GULF RESEARCH & DEVELOPMENT CO. 17 Oct., 1967 [30 Nov., 1966], No. 47142/67. Heading C2C. Primary normal alcohols are prepared by reacting normal alpha olefins with HBr under conditions favouring anti-Markownikoff addition to produce a first reaction product containing a primary normal alkyl bromide and a secondary normal alkyl bromide, reacting said first reaction product with a monobasic organic acid to obtain a second reaction product containing a primary normal alkyl ester and HBr, removing HBr from this reaction product and thereafter treating the resulting product with water to convert the primary normal alkyl ester to a primary normal alcohol. The reaction of the normal alpha olefin and HBr is suitably effected in the presence of a free radical initiator. Examples prepare n-octyl alcohol.
Patent GB-1278668-A (GB)
Title: Improvements in or relating to optical electronic solid-state systems
IPC: H01L31/173
Filed: 1969-09-26
Abstract: 1278668 Semi-conductor devices; lasers SIEMENS AG 26 Sept 1969 [27 Sept 1968] 47388/69 Headings H1C and H1K An integrated solid-state optical-electronic circuit includes a semi-conductor body 31 containing various circuit elements optically coupled together by optical paths 32, 320 situated in layers on the body 31 parallel to the upper surface thereof, other layers in or on the body 31 providing electrical interconnections 37, 370 between the circuit elements. The circuit elements employed may include a luminescent diode, which may lase, provided by a PN junction between region 33, 34 in the body 31, which also contains a photo-diode constituted by P-type and N-type regions 372, 371 respectively. The optical coupling paths 32, 320 may be of glass or transmissive crystalline or glass-like material, e.g. semiconducting glass. By provision of two luminescent diodes, photodiodes and optical paths, an optical feedback loop may be formed. One or both ends of the paths 32, 320 may be coupled to the corresponding device by means of hemispherical transmissive bodies 38, 360, preferably carrying a metal reflective coating. The body 360 may be fluorescent to enhance the excitation of the photodiode. A similar hemispherical coupling body 36 is used simply to redirect light from one optical path 32 into one or more other paths such as 320. Other embodiments include one luminescent diode coupled optically to two photo-diodes, one of which is arranged to provide controllable capacitive feedback to the luminescent diode via a PN junction capacitor and an NIN or NSN capacitor also formed in the semi-conductor body. The electrical -paths between the various circuit components are provided by alloyed or diffused N-type semiconducting tracks. Other types of device which may be incorporated into an integrated circuit in accordance with the invention include diodes, transistors, resistors, capacitors, photoresistors, phototransistors, and optical amplifiers and resonators.