baber/WOPTO huggingface dataset:
Patent GB-1361090-A (GB)
Title: Fused ring quinazolinones
IPC: C07D498/04
Filed: 1971-10-07
Abstract: 1361090 Isoxazoloquinazolines CARTERWALLACE Inc 7 Oct 1971 [8 Oct 1970] 46597/71 Heading C2C The invention comprises compounds of formula  and their physiologically acceptable acid addition salts, wherein X and Y are each H, OH, halogen, sulphanyl or C 1-6  alkyl or alkoxy, and R<SP>1</SP>, R<SP>2</SP> are each H or C 1-6  alkyl. These compounds are prepared by reacting (1) an appropriately substituted isatoic anhydride with an isoxazolidin-3-one; (2) an alkyl N-3-chloropropionylanthranilate with NH 2 OH; (3) an oaminobenzohydroxamic acid with a 3-chloropropionyl chloride. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have anti-inflammatory, antipyretic, diuretic, antiserotonin and antibradykinin activity, and are stated to prolong the duration of hippocampal seizures in laboratory animals.
Patent GB-1120825-A (GB)
Title: Extraction of crude alkaloids
Inventor: MAINIL JEAN LOUIS PAUL
IPC: C07J75/00
Filed: 1965-11-05
Abstract: The invention comprises a process for isolating the crude alkaloids funtumine and funumidine from undried leaves of Funtumia latfolia by digesting with an aqueous acid solution, heating the pulp so formed, separating the aqueous acid solution therefrom and treating the solution to obtain the alkaloids.  The leaves may undergo a preliminary fermentation.  5a -androstone-17b -ol-3-one is obtained from a mixture of funtumine and funtumidine by conversion to the mixture of N-acetyl derivatives, oxidation to form N-acetyl-funtumine, reaction with a hydroxylamine salt to form 3a -acetylamino-20-oximino-5a -pregnane, subjecting this to a Beckmann reaction to obtain 3a ,17b -diamino-5a -androstane, reacting this successively with chloramine and sodium methanolate to form 5a -androstane-3,17-dione, converting this to its 3,3-dimethyl ketal, reducing this with sodium borohydride to form the 3,3-dimethoxy-17b -ol, and hydrolysing the ketal group.  N,N1 - di - (isopropylidene, salicylidene or benzylidene) - 3a ,17b  - diamino - 5a  - androstanes are prepared by reaction of 3a ,17b -diamino-5a -androstane with the appropriate aldehyde or ketone.
Patent GB-1031897-A (GB)
Title: Improvements in or relating to stabilizing apparatus for ships
IPC: B63B39/03
Filed: 1963-11-28
Abstract: 1,031,897. Stabilizing ships. H. D. FANSHAWE. Nov. 30, 1964 [Nov. 28, 1963], No. 47143/63. Heading B7M. A stabilizing apparatus for a ship incorporating two liquid-holding means 1, 2 normally on the same level, each liquid-holding means consisting of a series of closed liquid-holding compartments 1A, 1B, 1C, 1D; 2A, 2B, 2C, 2D all on the same level and pressurized in ascending steps of pressure, has means comprising ducts 3A, 3B, 3C, 3D, a valve device 5 having passages 5A, 5B, 5C, 5D, 5E and duets 4A, 4B, 4C, 4D for connecting each compartment (1B, 1C, 1D) except the compartment (1A) at lowest pressure of one selected liquid-holding means (1) at a point below its minimum liquid level to the compartment (2A, 2B, 2C) of the other liquid-holding means, (2) pressurized to the next lower step of pressure at a point below its minimum liquid level, and a pump 12 having its inlet connectible to said compartment (1A) at lowest pressure of said selected liquidholding means (1) and its discharge cannectible (via duct 11) to the compartment (2D) at highest pressure of said other liquid-holding means (2), corresponding compartments of the two liquid-holding means at the same pressure being interconnected (via pipes 13A, 13B, 13C, 13D) at points above the maximum liquid level 14 in the compartments. The valve device 5 has its ganged members 6 and 7 operated by cylinders 8 and 9 under the control of a rollsensing device 10.
Patent GB-1216256-A (GB)
Title: Improvements in or relating to the separation of hydrogen containing gas mixtures
Inventor: LINDE HERMANN
IPC: F25J5/00
Filed: 1968-10-04
Abstract: 1,216,256. Separating H 2  and CH 4  LINDE A.G. 4 Oct., 1968 [3 Nov., 1967], No. 47153/ 68. Heading B1L. [Also in Division F4] Separation of a hydrogen-containing gas mixture, e.g. coke oven gas, delivered by a compressor to provide either ammonia synthesis gas or pure hydrogen is effected by cooling the gas mixture in at least two reversible regenerators 2 to 4 and 5 to 7 thereby condensing high boiling components, further cooling the resulting crude hydrogen fraction in heat exchangers 14, 15 and 17, 18, 19, and then either freeing it from methane by scrubbing with liquid nitrogen in a column 20, thereby producing synthesis gas;or condensing the methane in a condenser (not shown) which replaces the column 20, thereby producing pure hydrogen. The synthesis gas or the pure hydrogen is expanded at 25 and part of the expanded gas is then passed through tube coils 8 to 13 in at least one of the regenerators 2 to 7. Another part of the gas is used to cool heat exchanger 22 traversed by compressed nitrogen delivered by a compressor 21. This nitrogen is further cooled at 23 prior to being liquefied in an expansion valve 24, and then fed either to column 20 as washing liquid, or to the substituted condenser (not shown) for purifying the crude hydrogen. Condensate withdrawn from column 20 or the substituted condenser is expanded at 27, 28 and used to cool heat exchangers 19, 23, 14 and regenerators 5 to 7, before being withdrawn at 30.
Patent GB-996527-A (GB)
Title: Improvements in or relating to photographic developing apparatus
IPC: G03D9/00
Filed: 1962-12-14
Abstract: 996,527. Photographic developing apparatus. A. W. FISKEN. Nov. 27, 1963 [Dec. 14, 1962], No. 47210/62. Heading G2A. In a developing bath 10 having a plurality of vanes such as 12,13 for guiding photographic sheets into the liquid, the lower end 13b of the vane 13 nearest the front wall 17 of the bath is cranked towards the wall 17 and away from the adjacent vane 12. In use, an exposed sheet is fed through the space 16 between vane 13 and wall 17, and a positive transfer sheet through space 16a between vanes 13 and 12. The cranked end of vane 13 tends to keep the exposed sheet from contacting the transfer sheet for a longer period, so allowing more time for development. The sheets are then guided up to pass between pressure rollers 18, when the transfer is effected. The surfaces of the stainless steel vanes (plastic in Provisional Specification) have a series of pear-shaped dimples 25 projecting therefrom, alternately on one side and then the other (Fig. 4, not shown), these facilitating the motion of the sheets over the vanes.
Patent GB-1338223-A (GB)
Title: Switches in coin operated apparatus
IPC: G07F5/06
Filed: 1970-12-22
Abstract: 1338223 Coin-freed apparatus ELECTRIC SHOP DEVELOPMENTS Ltd and W L ROBINSON 22 Dec 1970 [26 Sept 1969] 47480/69 Heading G4V Coin-freed apparatus comprises a coin slide (10) (Figs. 1 to 6, not shown) freed for operative movement by the insertion of at least one coin therein, a switch 94 and switch operating means co-operating with the slide and arranged so that at least two operative movements of the slide are necessary before the switch is operated. The coin slide is preferably of the form described in Specification 1,273,147. In the embodiment described, which is designed as a "two-times" accumulator, a part 77 of the slide acts by means of spring 76 on contact button 75 which slides within housing 70, an end 86 of the button 75 being a push fit within the bore of a hollow splined sleeve 84, the splines 85 corresponding to grooves 79 in a collar 78 within the housing. As the sleeve 84 is moved knife-edge projections 84a at its end co-operate with the chisel edges 90 of arms 89 of the abutment member 87 to slightly rotate the member which is mounted on a shaft 91 extending from a block 92 that carries a contact 94 of the switch, and urged towards the sleeve, within which a shaft 88 of the member is located, by a spring 93. On movement of the slide back to its initial position the slight rotation previously imparted to the member 87 by the knife-edges 84a enables the member to be further rotated by interaction between the chisel edges 90 of arms 89 and inclined edges 82 of members 80 so that the arms 89 now lie between the members 80. On a second operation of the coin slide a further slight rotation of member 87 is made by the edges 84a and now an arm of the member is in a position to operate the contact 94 of the switch. On return to the initial position the chisel edges 90 co-operate with inclined edges 81 of members 80 so that the arms 89 again sit in grooves 83 in the members 80. The accumulator may be adapted for a greater number of operations by changing the number of arms 90 and members 80.
Patent GB-1300370-A (GB)
Title: Pipe joints
IPC: F16L47/10
Filed: 1971-10-13
Abstract: 1300370 Pipe couplings UPO OSAKEYHTIO 13 Oct 1971 [13 Oct 1970] 47701/71 Heading F2G A pipe joint, which may either be used in a flexible condition, Fig. 1, on in other applications, with the parts telescoped together, Fig. 2, to make a rigid joint, includes a packing ring 3 and an abutting U-section ring 4. In Fig. 2, a wedge ring 5 is inserted into the ring 4 to secure the pipes together. The pipes 15, 16 are of plastics and, instead of stepping socket end 2 outwardly at 7, spigot end 1 may be stepped inwardly to provide flexibility.
Patent GB-1147939-A (GB)
Title: Method of pumping viscous crude oil
IPC: E21B43/12
Filed: 1966-10-24
Abstract: 1,147,939. Deep well pumps. CHEVRON RESEARCH CO. Oct.24, 1966 [Oct.23, 1965], No.47737/66. Heading F1A. [Also in Division El] A down-the hole pump for an oil well comprises a reciprocable plunger 30, Fig.2, carrying ballvalve 38, and a ball-valve 48 in a fixed housing 40, upward movement of the plunger closing valve 38 and opening valve 48 to admit well-fluid to chamber 37 and downward movement closing valve 48 and opening valve 38. In another embodiment, plunger 114, Fig.5, is reciprocated by piston 112 controlled by slide valve 117 to supply activating fluid from pipe 126 alternately to opposite sides of the piston. The fluid is such as to form an oil-inwater emulsion with the viscous crude oil being pumped, thereby reducing its viscosity, and hence the fluid from the exhaust side of piston 112 passes via passage 107 to the inlet chamber 105. The plunger is double acting with ball-valves 122, 123 controlling the inlets from chamber 105 and ballvalves 111, 113 controlling the outlets 120, 121 to the common delivery passage.
Patent GB-1029289-A (GB)
Title: Improvements in or relating to composite sheet material
IPC: B32B15/08
Filed: 1962-12-19
Abstract: 1,029,289. Laminates. K. H. SCHEUFELEN, and K. E. SCHEUFELEN. Dec. 19, 1962 [Dec. 23, 1961], No. 47907/62. Heading B5N. A laminate comprises at least one layer of paper-like material impregnated with a melamine-formaldehyde resin bonded to one or both sides of a metal layer. The metal layer may be steel, light metal bronze or brass and may be in the form of a foil, mesh, perforated foil or expanded metal. The paper-like material may be paper made from natural or synthetic fibres or both or a paper fibre fleece. The melamine formaldehyde resin may contain plasticizers. To increase the bonding between the metal layer and the impregnated paper an intermediate layer can be interposed, e.g. an epoxy resin or a foil of thermoplastic resin such as polyvinyl chloride, polyvinyl acetate, polyacrylates and polymethacrylates. The surface of the metal layer may be treated by phosphatization, chromate treatment, anodizing or coating with polyvinyl butyral. The laminate is made by assembling the layers while the synthetic resin is still uncured or partially cured and applying heat and pressure to cure the resin and bond the layers together. The laminate may be subsequently shaped by the application of heat and pressure.
Patent GB-1318986-A (GB)
Title: Cross flow blower
IPC: F04D17/04
Filed: 1970-10-09
Abstract: 1318986 Transverse-flow blowers K ZENKNER 9 Oct 1970 [10 Oct 1969] 48109/70 Heading F1C [Also in Division F2] A wedge-shaped vortex-forming tongue 2', Fig.2, with its two sides 6', 7' subtending an angle of about 10 degrees to about 60 degrees is spaced from the rotor periphery by approximately 5% to approximately 15% of the rotor diameter, the angle subtended at the rotor axis betweenthe tongue and the beginning 9 of a spinal guide wall 3 being approximately 130 degrees to approximately 180 degrees. The spacing a between the beginning 9 of the wall 3 and the rotor periphery is approximately 10% to approximately 30% of the rotor radius, successive spacings a 2 , a 3  and a 4  at respective intervals of 60 degrees, 30 degrees and 30 degrees increasing by respective amounts in the region of 5%-30%, 10%-30% and 20%-35%, a final increase in the region of 20%-50% occurring to provide a spacing a 5  at the end of the spiral. The remainder 11 of the wall 3 is either straight on, as shown, of reversed curvature. The spiral subtends an angle of 140 degrees - 190 degrees . at the rotor axis; it may be made up of circular arcs of differing radii, the radii reaching a maximum and then decreasing towards the end of the spiral. The side 6' of the tongue 2' has a length at least equal to 15% of the rotor radius and is at an angle of about 15 degrees to about 45 degrees to the tangent at the nearest point on the rotor periphery. The rounded tip 14 of the tongue has a radius which is 5%-25% of the rotor radius. A convergent portion of the outlet 19 which increases the outflow velocity by at least about 20% has a length l equal approximately to 0À75- 1À25 of the rotor radius. The distance between the side 7' of the tongue 2' and the wall 3, expressed as a fraction of the rotor radius, is approximately 0À75 to approximately 1À50 at the narrowest part of the outlet and 1-2 at the widest part. Formation of a boundary layer in the inflow to the blower may be prevented by a tongue 30, Fig. 4, having permeable sides 30a, 30b through which air can flow from the outlet to the suction side of the blower, this flow being controlled by a filling 31 of glass wool, stone wool, foamed artificial material or filtering material impregnated with synthetic resins which also has a silencing effect.
Patent GB-1027186-A (GB)
Title: Thermal hardening of rails
IPC: C21D9/04
Filed: 1964-11-27
Abstract: Steel rails are caused to traverse a zone wherein the head is heated and are simultaneously cambered by an amount sufficient to equalize the thermal contraction resulting from the subsequent quenching. Cambering may be effected by the weight of the rail on either side of the heating zone in conjunction with an upwardly acting camber roll. Rails may be joined into strings before heat treatment and a number of strings may be treated in parallel, the joints being staggered. The rate of quenching is such that martensite formation is avoided. Suitable apparatus is described and illustrated.
Patent GB-1524270-A (GB)
Title: Stabilizer for halogen-containing polymers
IPC: C08K3/34
Filed: 1976-11-19
Abstract: 1524270 Borate-ester salts; polymer stabilizers HOECHST AG 19 Nov 1976 [21 Nov 1975] 48357/76 Heading C3K [Also in Division C2] Halogen-containing polymers are stabilized using a mixture of a primary stabilizer and a co-stabilizer comprising a metal salt of an acidic basic acid ester of a polyhydric alcohol of formula HO-CH2[CH(OH)]n-CH2OH, where n = 2-5; the molar ratio of basic acid to the polyhydric alcohol is from 1 : 0À5 to 1 : 4, and the salt contains cations of an alkali metal, an alkaline earth metal, Zn, Cu, Cd, Sn, Pb, Mn, Co, Ni, Al, Zr, La or Ce. In the examples, the polyhydric alcohols used are sorbitol, mannitol, xylitol and pentaerythritol (comparative) and the metals of the borateester-salt are Ca, Mg, Al, Na, Sr, Sn-II, Pb-II, Cd, Ni-II, Cu, and Zn.
Patent GB-1413136-A (GB)
Title: Method of producing sheet steel or strip
IPC: C21D8/12
Filed: 1972-10-23
Abstract: 1413136 Heat-treating silicon steel; nitriding NIPPON STEEL CORP 23 Oct 1972 [22 Oct 197 2 Nov 1971] 48660/72 Heading C7D [Also in Division B3] Steel containing (by wt.) not more than 4% Si, not more than 0.085% C, 0.01-0.065% acid-soluble Al, and N present up to 0.012%, together with optionally 0.013-0.027% S is formed into a slab, heated to above 1200‹C and cooled to a temperature in the range 1250- 1000‹C in less than 200 seconds after which it is hot-rolled to plate and cooled to 600‹C or below in less than 200 seconds. The plate is then cold rolled to sheet or strip in one or more stages, the one or final stage involving a reduction of 65- 95%, and the product finally annealed at more than 800‹C. There may be interposed between the hot and cold rolling operations a continous annealing process at 750-1200‹C, in the course of which the nitrogen content of the steel may be enriched by 0.0005-0.004%; after annealing the steel is rapidly cooled, particularly to 400‹C in 2 to 200 seconds to obtain 0.0005 to 0.0095% of precipitated AlN. Alternatively the plate may be nitrided for 30 seconds to 30 minutes at above 600‹C either in nitriding gas or after coating with manganese nitride, and then annealed. The final product is used particularly for transformer cores.
Patent GB-1125777-A (GB)
Title: Improvements in or relating to implements for working crop lying on the ground
IPC: A01D78/02
Filed: 1965-11-16
Abstract: 1,125,777. Haymaking machines. TEXAS INDUSTRIES Inc. 16 Nov., 1965 [4 Dec., 1964; 8 June, 1965], No. 48705/65. Heading A1F. The subject-matter of this Specification is identical with that of Specification 1,125,776.
Patent GB-1373804-A (GB)
Title: Heating of blood samples contained in non-metallic vessels
IPC: A61M5/44
Filed: 1971-10-21
Abstract: 1373804 Electric heating apparatus SIEMENS AG 21 Oct 1971 [21 Oct 1970] 49062/71 Heading H5H A blood sample 19 in a non-metallic vessel is heated by induction in a portable apparatus as described below. The apparatus for heating the blood sample 19 in a non-metallic vessel 18 (e.g. glass) comprises a housing 1 on a base 2; a helical silvered copper induction coil 3 of 3-5 turns to receive the vessel 19 and a plastics support plate 20. The coil is connected via leads 14-15 and plugs 12, 13 to a high frequency generator (not shown) a tuning capacitor 7 being provided to cause resonance to occur in the coil. The blood sample may be frozen or cooled and about 400 watts of energy may be supplied by the generator. Dimensions of the coil are disclosed. The generator operates at frequencies of the order of 27 Mhz.
Patent GB-986174-A (GB)
Title: Improvements in or relating to tensioning devices for driving chains
Inventor: DUNCAN IAN GAIR
IPC: F16H7/08
Filed: 1962-12-31
Abstract: 986,174. Chain-tensioning arrangements. BORG-WARNER Ltd. Dec. 16, 1963 [Dec. 31, 1962; March 28, 1963], Nos. 49177/62 and 12350/63. Heading F2Q. A chain tensioner, e.g. for a cam-shaft drive, comprises a blade 13 of plastics material, e.g. nylon or a hard synthetic rubber, approximately the width of the chain 12, one end 16 being attached to a fixed fulcrum and the other end 14 forming a floating fulcrum resting against a guide 15, and a tension spring 17 extending between the fulcrums or between the floating fulcrum and an intermediate point on the blade. The fixed fulcrum is usually adjacent the driving sprocket 10, and the working surface of the blade may be faced with a soft synthetic rubber. The plastics material of the blade will acquire a permanent set conforming to the natural line of the slack flight of the chain. The blade may be of uniform thickness along its length, or have thickened ends tapering progressively toward the centre portion. Fig. 3 shows a blade of reduced thickness adjacent its ends, the main portion 20 of the blade thickening progressively toward the centre. The portion 20 may be of channel or T section with the taper on the flange(s) 21 thereof. In another blade form, the thickness progressively reduces from the fixed fulcrum to the floating fulcrum. Blades for use with longer chain flights have a " steady " near the midpoint (Figs. 7 and 8). In Fig. 7, the floating fulcrum 18 is pin jointed at 26 to one end of a slide 27 bearing against a fixed surface 28, a link 30 being pin jointed to the other end of slide 27 and to the blade mid-point. Fig. 8 shows a single flexible member 33 pin jointed at 26 to the floating fulcrum and at 34 to the blade midpoint, the spring 32 connecting the ends of member 33. The pin 34 may be omitted to give a sliding contact. Members 27 and 33 are preferably of a high friction plastics material to provide damping. To obviate flutter of roller chains, the fixed fulcrum end may be shaped to follow the chain path where the chain tends to cling to the driving sprocket as it leaves the latter.
Patent GB-1324788-A (GB)
Title: Printing machine with a device for preselecting the number of sheets to be printed
IPC: B41F13/54
Filed: 1970-10-16
Abstract: 1324788 Printing apparatus ADAMOVSKE STROJIRNY NARODNI PODNIK 16 Oct 1970 [28 Dec 1969] 49241/70 Heading B6C A printing machine is stopped by disengagement of offset cylinder 28 from a co-operating cylinder when a preselected number of sheets printed is reached. The number of sheets to be printed is set by pushing in control knob 52 against the resistance of a spring, so disengaging tooth 8 from notched disc 9, and turning the knob to set the desired number on dial 53 and give an initial rotation to a ratchet wheel. A pawl 14 rotates the ratchet wheel through an incremental angle with the printing of each sheet, until with the printing of the last sheet a pin 32 on the ratchet wheel contacts a tooth on a lever 5 and initiates tripping of the offset cylinder and disengagement at the paper feed and motor mechanism of the printing machine. The pawls 14 and 46 are then lifted, and the ratchet wheel returns under spring action to its start position, from which it is removed when a new number is set on the dial 53, and printing of that number is commenced, or on repetition printing of the same number of copies.
Patent GB-1136297-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D9/00
Filed: 1966-11-03
Abstract: 1,136,297. Plate heat-exchangers. O. CARDELL. 3 Nov., 1966 [9 Nov., 1965; 24 Jan., 1966; 26 Sept., 1966], No. 49266/66. Heading F4S. A plate heat-exchanger comprises spacedapart parallel plates, e.g. 1, 2 and 2, 3 interconnected by wire spacing elements such as 10, 10<SP>1</SP>, respectively resistance welded to said plates. Arrows 8 and 9 indicate the fluid flow directions in a cross-current type exchanger. The spacing elements have curved surfaces, the radius of curvature of which is equal to or greater than half the distance between the parallel plates. Spacing elements 10, 10<SP>1</SP> are arranged in rows and may have either circular (Figs. 5 to 9) or elliptic cross-section (Figs. 2 to 4), the latter shaped elements being placed such that the ellipse minor axis is perpendicular to the plane of the plates. The spacers when of circular cross-section may be either cylindrical (Figs. 5 and 6, 7 and 8) or spherical (Fig. 9) in shape; all forms of spacer having an arcuate uniform surface in contact with the plate surfaces. In other embodiments (Figs. 10, 11) the plates of each pair are interconnected along two opposed curved edges. Plates 1 and 2 and 3 and 4 (Fig. 10) are joined by welds 11, 11<SP>1</SP>, respectively. An alternative arrangement (Fig. 11) has all the plate edges curved in the same direction. They are welded together with the edge (25) of a plate in contact with the convex edge (26) of an adjacent plate (counter or concurrent type heat exchanger). For large plate surface assemblies two or more plates may be joined together (Fig. 12) at flanges (30, 31). In a stack of plate pairs, spacing elements may be disposed between adjacent plate pairs as well as between plates of each pair.