baber/WOPTO huggingface dataset:
Patent GB-310687-A (GB)
Title: Improvements in the manufacture and production of alkali metal nitrates
IPC: C01D9/04
Filed: 1928-05-31
Abstract: 310,687. Johnson, J. Y., (I. G. Farbenindustrie Akt. Ges.). May 31, 1928. Alkali metal nitrates are obtained by reacting alkali metal sulphates with nitric acid in such quantity that at least two molecular proportions of nitric acid are present for each molecular proportion of sulphate, the quantities being so chosen that practically pure alkali metal nitrate separates at once or on cooling. In using potassium sulphate the molecular proportions of nitric acid required vary from 2 for acid of 28 per cent strength to 4.5 for acid of 50 per cent strength; and for sodium sulphate from 2 for acid of 28 per cent strength to 2.5 for acid of 50 per cent strength. After separation of the alkali nitrate, excess nitric acid may be distilled off from the mother liquor, any alkali bisulphate present be then separated by cooling and returned to the process, and the sulphuric acid solution remaining be recovered.
Patent GB-145409-A (GB)
Title: Improvements in means connected with the cooling of internal combustion engines
IPC: F02F1/06
Filed: 1920-06-12
Abstract: 145,409. Dayton-Wright Co., (Assignees of Kettering, C. F.). June 21, 1919, [Convention date]. Cylinders, cooling.- The difference of temperature between the induction valve side and the exhaust valve side of a cylinder head is reduced by placing in contact with the head a piece of metal of good heat conductivity. A piece of copper 35 may be clamped between the cylinder head 21 and the superstructure 23 carrying the valve spindle guides and forming the admission and exhaust pipes. A piece of non-conducting material 40 may be placed between the parts 35 and 23. The cylinder is surrounded by a jacket 45 through which air is forced and which contains an undulating strip of copper 30 in contact with the cylinder wall and the copper plate 35. Several forms of the plate are described.
Patent GB-762318-A (GB)
Title: Improvements in or relating to stand, pedestal, or floor grinding machines
Inventor: STOCH CZESLAW MICHAL
IPC: B24B41/06
Filed: 1954-05-29
Abstract: 762,318. Grinding. BRITISH STEEL CASTINGS RESEARCH ASSOCIATION. May 27, 1955 [May 29, 1954], No. 15967/54. Class 60 [Also in Group XXVIII] A stand, pedestal or floor grinding machine, e.g. for fettling and dressing castings, comprises a grinding wheel 1 having a cowling 3 connected by trunk 6 to a suction exhaust system. A work-rest 8 consists of freely rotatable rollers 9 extending from front to back and slightly spaced apart. A chamber 12 below the rollers communicates with the interior of the cowling. Sparks, pass by trap openings 13 into the cowling 3. The work-rest 8 is adjustable on a support 15.
Patent GB-1066387-A (GB)
Title: Improved high-pressure vessel constructed of pre-stressed concrete
Inventor: HAY JOHN DOUGLAS
IPC: E04C5/12
Filed: 1965-04-14
Abstract: 1,066,387. Reactor pressure vessels. SIR ROBERT McALPINE & SONS Ltd. Feb. 17, 1966 [April 14, 1965], No. 16096/65. Addition to 936,198. Heading G6C. A nuclear reactor pressure vessel as disclosed in the parent Specification has an annular extension of the cylinder wall projecting axially beyond the adjacent end slab, the ends of at least some of the helical passages in the concrete for the tensioned cables extending through the concrete of the annular extension, and the anchorages for the ends of the tensioned cables in those passages being located at a surface or surfaces of the annular extension. The surface engaged by the cable anchorages may conform to the surface of a frustum of a cone concentric with the cylinder and with the apex of the cone directed away from the cylinder, and the surface may be the wall of a cavity formed within the concrete of the annular extension. With this invention, the number of separate pre-stressing cables required passing through the end slabs and across the width of the vessel is reduced, in some cases to zero, which is of particular advantage where the standpipes extending through an end slab are required to be of close pitch.
Patent GB-687165-A (GB)
Title: Improvements in or relating to cold storage chambers
IPC: F25D23/06
Filed: 1947-03-03
Abstract: 687,165. Nonconducting coverings for heat. WATSON, F. (Isoleringsaktiebolaget W. M. B. March 3, 1947, No. 16142/50. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 2, 1947]. Divided out of 687,131. Class 64(ii) The subject-matter of this Specification is substantially the same as that of Specification 687,131 (except that the inlet and outlet to a block are invariably at the opposite ends of the block in the present Specification) but the claims differ. In the present invention there is no limitation to block construction, but in a cold storage chamber, moisture is, removed from floor, roof and wall insulation by air passing through distributing channels 78, 82, 82<SP>1</SP>, 82<SP>11</SP>, 90 and secondary passages such as those formed by corrugated sheets of insulation 12 nearest the chamber interior. Further, there is a zone of intercommunication, e.g. as at the bottom left hand angle of the chamber as shown, between the end or ends of the secondary passage or passages of a horizontal side, e.g. the floor 60, and the similar end or ends of a vertical side so that drying air flows in series through the two sides. Furthermore, there is communication between the opposite passage end or ends of the horizontal side and an air distributing channel, e.g. 82, from which channel air is obliged to flow to the zone of intercommunication through the horizontal side, since the ends 102 of the channel are closed to prevent the flow of air therefrom through the adjoining distributing channels 82". A distributing channel, e.g. 82<SP>1</SP>, in the zone, however, conducts some of the air from the horizontal side to a similar channel, e.g. 82<SP>11</SP>, of a vertical side contiguous to the vertical side previously referred to. The channel 90 at the top of the chamber performs a similar function to that of the channel 82 at the bottom. Specifications 550,562 and 556,453 also are referred to.
Patent GB-638875-A (GB)
Title: Improvements in or relating to electric air heaters
IPC: F24H3/00
Filed: 1948-07-20
Abstract: 638,875. Electric space heaters. BAKER, J. E., and WESTON, F. H. July 20, 1948, No. 16276/47. [Class 39 (iii)] An electric air convertion heater comprises a cabinet of rectangular cross-section having all walls flanged at the edges 5, the cabinet being assembled with the side walls 2 inside the top and bottom wall flanges, the front wall 9 which fits inside the bottom wall flanges having its flanges outside the sidewalls. Screws passing through the top and bottom walls 3 and 4 into the side and back wall flanges, hold the assembly together. An electric fire A or heating element is in the compartment 17 which has air outlet through perforated plate 16. A baffle plate is fitted inside on the front wall and reflector 19 is sprung into position in compartment 18. Front wall 9 is readily movable for access to the fire or element.
Patent GB-1465080-A (GB)
Title: Method and test kit for estimating chemical pollution in  aqueous fluids
IPC: G01N31/22
Filed: 1974-04-11
Abstract: 1465080 Estimating chemical pollution in aqueous fluids MILES LABORATORIES Inc 11 April 1974 [16 April 1973] 16328/74 Heading G1B The degree of pollution in an aqueous fluid e.g. streams, lakes, and the effluents of manufacturing processes is estimated by determining the amount of free chlorine, i.e. hypochlorous acid or hypochlorite ion in aqueous solution, which will react with a known amount of the aqueous fluid to form bound chlorine, i.e. the products containing chlorine, other than hypochlorous acid and the hypochlorite ion, and includes the chloride ion. The determination of the amount of free chlorine may be accomplished (1) by a titration of the aqueous fluid with free chlorine to find the maximum amount of free chlorine which reacts to form bound chlorine with a known amount of the aqueous fluid or (2) by contacting a known amount of the aqueous fluid with a known amount of free chlorine, the known amount of free chlorine being not less than that amount capable of completely reacting with the known amount of aqueous fluid to form bound chlorine, and determining the amount of free chlorine present in the aqueous fluid after a predetermined period of time, the amount of free chlorine which reacted to form bound chlorine being calculable by difference. A test kit for use in the above method comprises (a) a volumegraduated container, (b) a source of known amounts of free chlorine, and (c) means for detecting the presence, and optionally the amount, of free chlorine in the aqueous fluid. The free chlorine may be introduced into the titration by means of a composition which releases a known amount of free chlorine when contacted with the aqueous fluid e.g. an alkali metal or alkaline earth metal hypochlorite. The means for detecting the presence of free chlorine may be a eolourimetric reagent including one or more compounds having the Formula:- where R and R' are each hydroxy or amino and X, X', Y and Y' are each hydrogen, hydroxy, methyl or methoxy e.g. syringaldazine and/or vanillinazine which may be in the form of one or more tablets. The reagent composition may be incorporated with a carrier member, preferably an absorbent material such as paper, porous polymers, plastics and absorbent gels.
Patent GB-1340102-A (GB)
Title: Heat resistive complex materials strengthened by a fibrous  structure formed in situ
IPC: C04B35/581
Filed: 1971-05-21
Abstract: 1340102 Sintered refractory bodies TOKYO SHIBAURA ELECTRIC CO Ltd 21 May 1971 [23 May 1970] 16364/71 Heading C7D A refractory body with a fibrous structure is formed by hot pressing in a non oxidising atmosphere a powder mixture containing at least one of Al 4 C 3 , AlN, SiC, Si 3 N 4 , B 4 C and BN and 0À5-15 mole % of at least one of Sc 2 O 3 , La 2 O 3 , Y 2 O 3 , lanthanides and Y, Al garnet Al 3 Y 5 O 12 . The powders, particle size 0À5-2 microns are pressed at 20-1500 kg/cm<SP>2</SP> and 1300-2400‹C. The mixture may also contain BeO, SiO 2  and TiB and may be cold compacted prior to hot pressing. In an example, 97 mol A1N and 3 mol Y 2  O 3  with stearic acid was compacted at 5000 kg/cm<SP>2</SP> prior to hot pressing in flowing N 2 . The press temperature was raised stepwise for hot pressing and different pressures applied at different temperatures e.g. 400 kg/cm<SP>2</SP> at 1400‹C and 800 kg/cm<SP>2</SP> at 1700‹ C,
Patent GB-1049082-A (GB)
Title: An electrical heating element of silicon carbide and a method of making such a heating element
IPC: H01B1/04
Filed: 1965-04-15
Abstract: An electrical heating element is made by cementing together SiC bodies, each having a free Si content of 0.1-10% by wt.  The element contains at least one "hot part," which becomes incandescent during use and which has a free Si content of \sO 2.5%, preferably \sO 1.0%, and at least 2 "cold parts" which do not become incandescent during use, and which preferably have a substantially higher free Si content than the "hot part," e.g. \sO 5%. At least one part of the cement joining two portions of the bodies has a free Si content \sP the lower of the two bodies, and \sO 1.1 x the higher, e.g. \sO 3%, preferably 0.5-2%.  Both bodies joined may be of the same Si content. Each of the SiC bodies themselves may have one section forming a cold part of the element, and another forming a hot part; these may have substantially the same Si content, or the hot part may be treated to increase the Si content.  The element may have hot parts in the form of 3 limbs and a bridge attached to one end of each, and cold parts in the form of portions connected to the other ends.  A method of manufacture is also claimed, in which the initial cement may contain pulverous carbon of maximum grain size 100 m , and may also contain Si powder of maximum grain size 100 m , or may be a carbonaceous mass containing none, only some, all or an excess of the Si required, any further required being provided in vapour form (siliconization), and some of any excess being evaporated during heat treatment.  A carbon filling may be inserted into the SiC bodies if tubular near a joint before siliconization to prevent oxidation of the tubular body from the inside, and is entirely or partially consumed.
Patent GB-1215099-A (GB)
Title: Process for producing nicotinic acid mononucleotide
IPC: C12P19/30
Filed: 1969-03-28
Abstract: 1,215,099. Preparing nicotinic acid mononucleotide. KYOWA HAKKO KOGYO CO. Ltd. 28 March, 1969 [29 March, 1968], No. 16481/69. Heading C2C. Nicotinic acid mononucleotide is obtained by culturing a nicotinic acid mononucleotideproducing micro-organism belonging to a genus selected from Brevibacterium (e.g. from the species Brevibacterium ammoniagenes), Corynebacterium, Arthrobacter and Micrococcus (e.g. from the species Micrococcus sodonensis) under aerobic conditions in an aqueous nutrient medium containing nicotinic acid or nicotinamide or a non-toxic salt thereof, e.g. the sodium, potassium, sulphate, hydrochloride, or ascorbate salt. The nicotinic acid or nicotinamide or salt thereof may be added to the nutrient medium at the initiation of or during the course of fermentation either all at one time or intermittently. The culturing is generally conducted at 20‹ to 40‹ C. and at a pH of 4À0 to 9À5 and the nicotinic acid mononucleotide may be recovered from the fermentation liquor by, e.g., ion exchange resin treatment, solvent extraction, precipitation, adsorption, chromatography or concentration.
Patent GB-1537166-A (GB)
Title: Machines adapted for use in handling electronic component
IPC: B23P21/00
Filed: 1976-04-23
Abstract: 1537166 Conveying and orienting electronic components USM CORP 23 April 1976 [23 April 1975] 16494/76 Headings B8A and B8C A machine like that described in B.P. 1,329,761, is modified so as to be able to orient components D which have radially extending lead portions S (Fig. 6) (an adjacent main portion L of each load extending co-axially with the associated lead of the same component). The leads are fed to an endless conveyer along an S-shaped path defined by toothed wheels 42, 44. A cam-like member 52 has a series of flat surfaces 54, 55, and 56, which successively engage the body of the component and cause it to rotate about, and lag behind, the coaxial lead portions until the latter are engaged by pick-off members 30, 30, of the conveyer. At the downstream end of the conveyer, the components are successively fed to taping mechanism and it is necessary for this operation that the body portions of the components lead relative to the co-axial portions. This is achieved by the action of spring members 96 and 98 (Figs. 6 and 8). These members are secured by their upstream ends to a curved channel-shaped member 66 which is disposed between the end sprockets of the conveyer. Further flexible members 74, 74, are biased to a converging relation by a spring 92. The co-axial portions of each component are constrained to bear against the arcuate profiles of the flanges of the channel-shaped member 66. In operation, each component has its body portion first centred by the action of the members 74, 74, and then lifted up into a leading position relative to the lead portions by their bottoms engaging the spring members 96 and 98. The components are then engaged by portions 60 (Fig. 6) of a wheel 26 of the taping mechanism.
Patent GB-1378580-A (GB)
Title: Process for separating uranium from plutonium
Inventor: RATHVON H C
IPC: G21C19/46
Filed: 1972-04-10
Abstract: 1378580 Purifying uranium ATLANTIC RICHFIELD CO 10 April 1972 [11 May 1971] 16497/72 Heading C1A [Also in Division G6] Uranium is purified from plutonium by contacting an acid-free organic solution of uranium and plutonium with an aqueous solution of an amine reducing agent for plutonium to remove the plutonium from the solution. Optionally the aqueous amine solution contains a holding agent, capable of decomposing nitrate ion, which may be hydrazine, sulfamic acid, formic acid or urea. The amine reducing agent may be methyl- or ethyl-amine, hydroxylamine or hydroxylamine sulphate, nitrate or chloride. The uranium/plutonium organic solution is derived by dissolving a nuclear fuel in nitric acid, extracting the solution with an organic solvent and then stripping excess acid with an aqueous stripping agent to form the required solution. The organic solvent is an alkyl ester of a phosphorus containing acid in a hydrocarbon or halohydrocarbon diluent. For example tributyl-phosphate diluted with an aliphatic, aromatic or halogenated aliphatic hydrocarbon.
Patent GB-656267-A (GB)
Title: Improvements in or relating to ornamenting leather
IPC: B44C1/17
Filed: 1948-06-19
Abstract: 656,267. Ornamenting leather. REPTILE DRESSERS, Ltd., and SMITH, H. W. June 19, 1948, No. 16524. [Class 76] [Also in Group XVI] A pattern is applied to leather by coating the leather with an adhesive of a type which will remain flexible when dry, e.g. synthetic resin, cellulose lacquer, or gum, drying the adhesive, applying to the adhesive-coated face of the leather a heat-fixing transfer, having an adhesive coating, carrying the desired pattern, the transfer being of a type which produces a flexible pattern coating on the leather, subjecting the leather and applied transfer to heat and pressure, e.g. 130‹ F. at 200 1bs./sq. inch for 5 secs., wetting and removing the transfer backing, and then drying and staking the leather. The surface may be subsequently sprayed or coated with a flexible cellulosic, albuminous, or casein lacquer, and the leather is then dried and finally glazed or plated or both.
Patent GB-257700-A (GB)
Title: Improvements in picking mechanism for looms for weaving
IPC: D03D49/24
Filed: 1925-06-27
Abstract: 257,700. Hollingworth, E. June 27, 1925. Picking-motions.-In a spring-picking motion in which the spring k connecting the picking- levers l is extended by the reciprocation of a longituldinal rod e, the rod e is actuated by a crank-lever d, linked to a crank i<1> on a side-shaft i. The shaft i is driven at half-speed from the main crank-shaft by gearing j' - - j<5>. The rod e, which is adjustably connected to the lever d, actuates levers q. When the lever q oscillates to the left, Fig. 3, a shoulder q<1> thereon shifts the lever l to extend the spring until a catch r engages a pin s. On return movemtnt of the lever q, an adjustable pin t thereon raises the catch r to allow picking to take place. The spring k is connected to the levers l by flexible connections m, which pass round rolls o, n on the frame and the levers l respectively. At the end of the picking-motion, the roll n moves downward relatively to the roll o so that the connection m is taken up slightly to cushion the picking-lever l. The crank i, the rod e, and their connections are in the same vertical plane.
Patent GB-554295-A (GB)
Title: Improvements in and relating to surgical bandages, dressings and the like
IPC: A61F13/00
Filed: 1942-09-11
Abstract: 554,295. Coated fabric. SMITH & NEPHEW, Ltd., T. J., BURLEY, D. W., and STERN, H. J. Sept. 11, 1942, No. 16574. Divided out of 554,186. [Class 140] A surgical bandage &c. is formed from a stretchable film of polymerized vinyl acetate, with a single plasticizer or mixed plasticizers which is coated with an adhesive, e.g. rubber and resin with or without zinc oxide or other fillers and with or without softeners applied as a solution, e.g. in petroleum spirit. Vinyl acetate 100 parts with 30 parts of diethyl phthalate by weight may be used but methyl glycol phthalate alone or mixed with another plasticizer may be used in lieu of the diethyl phthalate.
Patent GB-1369236-A (GB)
Title: Space frames
Inventor: STRYMOWICZ JERZY
IPC: E04B1/19
Filed: 1972-05-23
Abstract: 1369236 Rod couplings BRITISH IRON & STEEL RESEARCH ASSOCIATION 23 May 1972 [24 May 1971] 16574/71 Headings F2G and F2M [Also in Division E2] In a connector, e.g. in a space frame forming the roofing structure of a building, a tubular frame member 10 is connected to a spigot 12 by displacing separate outwardly-gripping wedges 18 axially, relatively to collet 16, which is thus squeezed inwardly, so that projections 26 are interengaged with those 28 of the spigot. The spigots 12 are welded to a plate structure (Fig. 3, not shown). The inner sleeve 20 may be held against rotation, by means of a special tool, while the nut 38 is being turned.
Patent GB-592590-A (GB)
Title: Improvements in processes for preserving fish
IPC: A23B4/03
Filed: 1944-09-01
Abstract: Fish, such as white spring salmon, halibut, ling cod, red snapper, sole and flounder, are cleaned and dressed by removal of the head, tail, entrails, fins and backbone, and are cut into steaks, cutlets of fillets, the pieces of fish are placed on sheets of cooking paper, the pieces on the sheets of paper being preferably placed on metal slabs and the pieces weighted to keep them flat, gluey substance is removed from the pieces by heating and draining off the liquid which exudes, the pieces are cooked under a pressure of 20lb./sq. in. in a closed chamber for 10-30 min., steam being introduced into the chamber if desired, the condensate is drained from the chamber, and the pieces are dehydrated in the chamber at a temperature of not less than 212 DEG F, and under a pressure of 1 in. mercury or less until less than 10 per cent. of moisture remains.  In dressing the fish and preparing steaks thereof, the backbone is removed through the incision on the underside through which the entrails were removed, the knife being run along the backbone on each side just deep enough to pass beyond the main vertebrae and sufficient uncut flesh being left in the back portion to hold the fish together, the tail end of the backbone is grasped and held up and the flesh severed from remaining unfreed vertebrae by a cross cut the fish is rolled back into shape, and is then drawn through spaced knives.  The Specification as open to inspection under Sect. 91 comprises also the performance of the operations aboard ship (see Group XXXIII), and the dehydration and subsequent pressing into cakes, of offal from the fish dressing.  This subject-matter does not appear in the Specification as accepted.
Patent GB-111483-A (GB)
Title: Improvements in Electrolytic Gas-generators.
Inventor: LEVIN ISAAC HARRIS
IPC: C25B9/19
Filed: 1917-11-13
Abstract: 111,483. Levin, I. H. Nov. 18, 1916, [Convention date]. Washers.-In an electrolytic gas generator, pipes 65, 67 connect the gas-collecting compartments with two chambers 63. From each of these leads a vertical pipe 71. perforated under a bell 72 which is immersed in liquid in a glass cylinder 62, so that gas bubbles from the lower edge of the bell. Water supplied by a reservoir 69 and pipe 70 to the glass cylinder 62 overflows through a tube 73 within the bell to the electrolyte compartments. A U-shaped trap 74 prevents emptying of the pipe 73. With this arrangement, escaping particles of electrolyte are washed back at intervals. Also. undue suction applied to the gas chambers causes air to be drawn in through the pipe 70. thus avoiding entrance of gas from other chambers.
Patent GB-166855-A (GB)
Abstract: 166,855. Morrall, Ltd., A., and Lewis, G. Dec. 3, 1920. Crochet hooks.-A hook is made in one piece and having a flattened handle portion c is formed with a reduced stem a which is of one diameter from a short tapered shoulder d to the hook. Reference has been directed by the Comptroller to Specification 21774/00.