baber/WOPTO huggingface dataset:
Patent GB-1358754-A (GB)
Title: Resinous microporous transfer structure
IPC: C08J9/28
Filed: 1971-07-26
Abstract: 1358754 Microporous plastics material ADDRESSOGRAPH MULTIGRAPH CORP 26 July 1971 35000/71 Heading C3C [Also in Division B6] A process for forming a resinous, microporous structure adapted to absorb and express a liquid material a plurality of times, comprises: (a) heating a thermoplastic resin to a temperature and for a time sufficient to melt it, (b) forming an emulsion of the melted thermoplastic resin with a liquid incompatible with the resin and (c) cooling the emulsion to solidify the resin and cause it to separate from the incompatible liquid. The resin may be heated to 100-500‹ F. and the amount of emulsifying liquid is usually 50-200% by weight of the resin. The size of the pores may be controlled by the rate of cooling the resin-liquid emulsion, a suitable rate of cooling being 15-40‹ F./minute. The average pore size in such a structure may range from 10 to 60 microns. The emulsifying liquid may be water but polyols are the preferred material. Stabilizing additives, e.g. silica or a polyvinyl resin introduced into the emulsion tend to delay the separation of the microporous structure from the mother emulsion when the emulsion breaks. The emulsifying liquid may contain the liquid which the resulting microporous structure is to express, e.g. an ink. Alternatively the material to be expressed may be loaded on to the formed structure. In the examples the microporous structure is formed from: an ethylene-vinyl acetate copolymer (1,2,4); polyethylene (3); a mixture of polyethylene and ethylene-vinyl acetate copolymer (5, 7, 8); and a mixture of polyethylene and ethylene-isobutylacrylate copolymer (6). In these examples the dyes methyl violet, methylene blue, methylene green, Victoria Pure Blue or Nigrosine may be added to the initial emulsifying liquid or applied to formed microporous structure.
Patent GB-1126681-A (GB)
Title: Improvements in and relating to lamp holders
Inventor: WEITZEL STANLEY LIONEL
IPC: F21V25/04
Filed: 1964-08-26
Abstract: 1,126,681. Lamp holders. LINOLITE Ltd. 20 Aug., 1965 [26 Aug., 1964], No. 35024/64. Heading H2E. A lamp holder has a socket at each end to receive the two ends of a double ended electric lamp tube 3, the socket 4, which is preferably moulded integrally at one end of a plastic base 2 and is provided with a contact 6 designed for connection to the neutral line of the main electric supply at 12, allowing an endwise movement of the tube through a hole 14, Fig. 2 (not shown), and the other socket 20 being normally surrounded by a movable insulated shield 24 having a switch element so that, when the shield is removed to allow the replacement of a tube, the associated contact strip 30 is disconnected from the live mains lead. As shown, the strip 30 is carried by the shield 24 and when the latter is in position, the outer end 34 of the contact strip 30, which forms the switch element, is arranged for co-operation with a second switch element 36 connectedto the live line of the main supply at 42 and actuated by a cord 46 through a ratchet device and a rotary square cam 44. Supports 16 provided in the socket 4 help to locate and centralize one end of the lamp and the socket 20 has resilient insulating clip elements 22 to hold the other end of the lamp when the shield 24 is removed. An insulated reflector 58 secured to the base shields the contact strips 6 and 36 and a razor socket 56 is provided.
Patent GB-802851-A (GB)
Title: Pump construction
Inventor: PERKINS GEORGE SIMPSON
IPC: F04B15/02
Filed: 1956-11-16
Abstract: 802,851. Reciprocating pumps. NATIONAL EQUIPMENT CORPORATION. Nov. 16, 1956 No. 35047/56. Class 102(1). Staggered rows of pump cylinders 2 alternately communicate with delivery nozzles 19 and a supply passage 17 under the control of a slide valve 14 the interior of which communicates with the passage 17, and which has passages 13 which in one position of the valve connect the cylinders to the interior of the valve ; in another position of the valve the cylinders are placed in communication with the nozzles 19 by means of tubes 16. In a modification the valve comprises serpentine grooves, which communicate with the passage 17, and through bores. The cylinders alternatively communicate with the bores and grooves. In a further modification the valve comprises a horizontal portion which controls connection between the cylinders and nozzles and vertical portions which control the connection between the cylinders and the supply.
Patent GB-1003885-A (GB)
Title: Improved sectional hot-water boiler
IPC: F23M5/00
Filed: 1961-09-29
Abstract: 1,003,885. Sectional hot water boilers. E. FEHR. Sept. 29, 1961 [Sept. 30, 1960], No. 35129/61. Headings F4A and F4B. The combustion chamber of a sectional hot water boiler is convertible from solid to oil fuel firing by positioning bricks 5 against the ribbed chamber walls by means of lugs No and Ns or N u  to force gases from an oil flame F down through the grate R and thence between the bricks S and the section walls to flues Fs and Fm above the chamber. The lugs may be east integrally with the sections in a cast iron boiler, or welded on in the case of steel sections.
Patent GB-1381497-A (GB)
Title: Tunnelling machines
IPC: E21D9/08
Filed: 1971-07-27
Abstract: 1381497 Tunnelling machines EDMUND NUTTALL Ltd 1 Feb 1972 [27 July 1971] 35331/71 Heading E1F A tunnelling machine comprises a shield 1 and a digging head mounted within and on the forward portion of the shield and comprising a single cutter-carrying arm 5 that is oscillated about an axis 7 extending substantially horizontally and at right angles to the axis of the shield. The arm is oscillated by a chain drive 10 or by a rocking lever, both of which can be actuated by hydraulically powered, piston cylinder motors 13, 14. Multi bladed rotors 34a feed excavated material onto a conveyer 31 extending back through the shield. Specification 1381496 is referred to. Reference has been directed by the comptroller to Specifications 1278347.
Patent GB-1393142-A (GB)
Title: Tris-hydroxyalkyl-beta-thiopropionyl hexahydrotriazines
IPC: C08K5/378
Filed: 1972-05-17
Abstract: 1393142 Triazine derivatives CIBA-GEIGY AG 17 May 1972 [1 June 1971] 35469/74 Divided out of 1393141 Heading C2C Novel compounds of formula where R is where R<SP>1</SP> and R<SP>2</SP> are independently H or CH 3  are prepared by reacting with HSCH 2 CH(OH)R 2  in the presence of a base.
Patent GB-631331-A (GB)
Title: Combination lock
IPC: E05B37/12
Filed: 1946-11-29
Abstract: 631,331. Permutation locks. TUCHOLSKI, G. Nov. 29, 1946, No. 35500. Convention date, June 29. [Class 44] In a permutation lock of the type in which the elements are set by counting clicks, the outside operating knobs are connected to toothed wheels having untoothed parts to provide a zero point from which the clicks are counted. Mounted on the same spindles as the toothed wheels 14 are locking discs 15 in the rims of which are notches 22 which in the unlocking position are aligned with projections 23 on the sliding bolt 10. Each toothed wheel is engaged by a pivoted spring loaded pawl 19 which carries a projection 29 at the top co-operating with a projection 31 on the bolt to effect a locking of the toothed wheel 14 in positions of the bolt between fully shot and fully retracted to prevent picking by " touch ". The locking discs are rotatably mounted on the spindles and arranged normally to turn with the wheels 14 by frictional engagement under the action of springs 16. The combination may be changed by holding the bolt retracted in the unlocking position of the discs to prevent their rotation and turning the knobs to the new position, thus moving the locking discs relative to the friction wheels.
Patent GB-444422-A (GB)
Title: Improvements in calculating devices
IPC: G06G1/00
Filed: 1934-12-11
Abstract: 444,422. Calculating - apparatus. SEYLER, C. A., Public Analyst's Office, Nelson Terrace, Swansea. Dec. 11, 1934, No. 35527. [Class 106 (i)] Apparatus for calculating various properties of coal comprises a disc 2 pivoted on a fixed disc 1, the discs having logarithmic and/or linear scales, an index arm 3 being provided if desired. The scales are constructed on the hypothesis that the percentages of hydrogen and carbon in the coal are related by certain given formulae to the calorific value and the percentage of volatile matter. The calorific value is set out on scales Q<g> on the fixed disc 1 and the volatile matter on scales B1, B2, D on the movable disc 2. The scales B1 and part of D are linear and the scales B2 and the remainder of D are logarithmic, the linear scale being used for non-anthracitic and the logarithmic for anthracitic coals, the basic formulµ being different in the two cases. The percentage of hydrogen is read on scales C1 and C2 and the percentage of carbon on the scale E on the fixed disc. Other scales on the movable disc comprise : (1) A sulphur scale S. (2) An ash scale A. (3) A scale marked (n-1) A0, giving the volume of excess air supplied in combustion. (4) A log. scale L1. Other scales on the fixed disc are : (5) A scale V0 giving the volume of wet flue gases. (6) A scale A0 of theoretical requirements of air. (7) A scale I of impurities. (8) A scale M of moisture and mineral matter. (9) A logarithmic scale L2: A diagram 5 is secured to the fixed disc 1, the co-ordinates representing percentage of carbon and carbon hydrogen ratio. The dotted lines then represent fuels with equal percentages of CO2 in the dry flue gases. Another similar diagram 6 is also provided. A further diagram 4 is formed on a card slidable in grooves on the disc 1 so that it may be changed for other diagrams. Alternatively, two or more diagrams 4 may be circumferentially slidable round the disc 1. Each diagram 4 comprises isofunctional lines arranged according to Seyler's classification to represent some property of the fuel. The properties concerned are : (1) Caking value. (2) Hardness of coal and derived coke. (3) Softening and swelling temperatures. (4) Percentage swelling. (5) Ignition temperature. A slit may be cut in the moving disc to co-operate with a curve on the fixed disc to show the caking value.
Patent GB-522360-A (GB)
Title: Ultra-high-frequency magnetron discharge devices
IPC: H01J25/58
Filed: 1938-12-06
Abstract: 522,360. Magnetron oscillators. STANDARD TELEPHONES & CABLES, Ltd. Dec. 6, 1938, No. 35529. Convention date, Feb. 3. [Class 39 (i)] In an ultra-short wave magnetron a linear filamentary cathode 6, Fig. 1, is surrounded by an anode formed of a number of rods 10 held in a conductive ring 8. A magnetic field is applied by magnet poles 4, 5 and when the rods 10 are chosen to be an odd number of half-wave lengths of the generated frequency, they resonate alternately in opposition. The rods may be replaced by flat or curved plates arranged radially at an inclination to the radius. To prevent the interception of electrons by ring 8 the rods may be bent inwardly as shown in Fig. 3 to lie in a cylindrical surface wholly within the inner edge of the ring ; or the ring may have small inward projections carrying the rods. The ring 8 is placed at a nodal point. The output may be taken off by a rod coupled inductively to one rod. For frequency-multiplication or division, two or more anode structures may be arranged along the filament, as shown in Fig. 9, the number and length of the rods corresponding to different frequencies. The frequency changes may also be effected by rods 10, Fig. 10, of differing lengths carried on either side of a support ring 8. An indirectly heated cathode may be used. End shields 11, 12 prevent impact of electrons on the envelopes. Specification 398,263 is referred to. The Specification as open to inspection under Sect. 91, also describes alternative anode structures consisting of a wire wound in zig-zag or in a helix with the length of each straight part of the zig-zag or half turn of the helix one or more half-wave lengths. This subject-matter does not appear in the Specification as accepted.
Patent GB-1074937-A (GB)
Title: Recovery of values from sulfur dioxide containing flue gases
IPC: C01B17/76
Filed: 1964-08-31
Abstract: The recovery of sulphur values from a flue gas at 800-1000 DEG  F containing solid particles entrained therein, SO2, SO3, O2 and water vapour, said flue gas having been produced by the combustion with air of solid-particle-producing, sulphur-containing fuel and containing 0.15-0.2% by volume SO2, comprises separating entrained solid particles to yield a flue gas containing less than 0.01 grain of solids per s.c.f. of gas, contacting the resulting substantially solids-free flue gas at 750-900 DEG  F. with a U2O5-containing catalyst suitable to oxidize SO2 to SO3 in the presence of O2, reducing the temperature of the resulting treated gas to below the dew point of H2SO4 present, e.g. 160-280 DEG  F. to effect reaction of SO3 with H2O and recovering the resulting condensed H2SO4.  The separation of entrained particles may be effected by passing the gas through a filter or cyclone separator and then an electrostatic gas-solids separation zone. The catalyst is preferably in the form of a permeable mass or shallow bed.  The water vapour content of the flue gas is preferably in stoichiometric excess with respect to the sulphur oxide content of the flue gas for the production of H2SO4 therefrom.  The flue gas may be produced by the combustion of coal, lignite, hard and soft coal, distillate and residual fuel oils useful for power generation.  The flue gas typically contains 0.006% by volume SO3 and 0.20% SO2, the other constituents being CO2, CO and N2.
Patent GB-1244333-A (GB)
Title: Improvements in or relating to cargo stowage aboard ships
Inventor: CLARK RONALD
IPC: B63B25/00
Filed: 1968-07-25
Abstract: 1,244,333. Removable decks in container ships. HYDROCONIC Ltd. 21 July, 1969 [25 July, 1968], No. 35655/68. Headings B7A and B7S. In a container ship, platforms 12 are provided each of the same plan area as the containers that the ship's container guides 11 are intended to take and each is fitted with corner latches 19 to co-operate with a lifting spreader. The platforms are secured by tapered locking- pieces 15 on supports 14 temporarily provided, at intermediate levels on the container guides 11.
Patent GB-1222479-A (GB)
Title: Security transport vehicle
IPC: B60P3/00
Filed: 1969-07-16
Abstract: 1,222,479. Security vehicle. FORD MOTOR CO. Ltd. 16 July, 1969 [27 Aug., 1967; 21 Dec., 1968], No. 35731/69. Heading B7B. A security transport vehicle comprises a separate cab and freight compartment, the latter being divided into a space 8 for bulky valuables and safes for boxes. The cab is divided into two compartments each accessible only through a respective door. The safes each have a cover 9 in the side of the van and a device 11 automatically securing an inserted box in the safe and releasable from the driver's compartment. In Fig. 3 (not shown) safes are fitted in a frame 25 in the back of a van behind a space 21 for bulky valuables.
Patent GB-758905-A (GB)
Title: Improved curve-describing instrument for drawing involutes
IPC: B43L11/08
Filed: 1954-12-10
Abstract: 758,905. Curve - describing instruments. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT-GES. Dec. 10, 1954 [Dec. 23, 1953], No. 35884/54. Class 97 (3). A curve-describing instrument for drawing involutes consists of a board having an arcuate or semicircular edge, a tangent element connected to the board so that it can roll on the edge of the board, or vice versa, a bar pivoted at the centre of curvature of the board, a pin slidably connected to the bar, and a carriage which rolls parallel to the rolling edge of the tangent element and carries a stylus adjustable perpendicularly to the rolling edge at various distances therefrom and guided along the bar to describe involute curves of various base circle diameters according to the position of the stylus, when the tangent element rolls on the edge of the board or vice versa. As shown in Fig. 1, a bar 15 has a straight edge K rolling on the semicircular edge of a board 10. Contact is maintained by steel wires or strips 13, 131 fixed to the bar at 12, 12<SP>1</SP> and to the board at 14, 141. When the bar 15 rolls on board 10, a guide pin 20 on the bar describes an involute. The guide pin engages a slotted bar 18 pivoted at 11, the centre of curvature of the edge of the board. A carriage 25 movable along bar 15 has a slide 27 adjustable thereon at right-angles to the edge K, and carrying a stylus at 30. The stylus traces an involute when bar 15 rolls on board 10, the base circle radius being the radius of curvature of the edge of board 10 less the distance of the stylus fiom edge K. An alternative arrangement is described in which the board rolls on a fixed straight edge.
Patent GB-903328-A (GB)
Title: Collapsible stackable stillages for handling materials
IPC: B65D19/38
Filed: 1960-10-20
Abstract: 903,328. Stud-and-socket fastenings; latches. SHILE, R. Oct. 20, 1960, No. 35915/60. Class 44. [Also in Group XXX] The uprights 12, 13, Fig. 1, of a collapsible stillage are held in an erected position by pins 21, Fig. 3, mounted on a deck 11, which cooperate with angularly disposed slots 46 in the members 45 to force flanges 22, attached to the deck 11, into engagement with an abutment surface 31. The force of this engagement increases when a load is placed on the deck 11. The flange 22 is latched in the position shown in Fig. 3 by a spring-urged bolt 50, which is moved to an unlatched position by a handle 57, Fig. 6, and held there by a notch 58. As the deck 11 is raised with respect to the legs to enable the stillage to be collapsed, the pins 21 rotate the bolts 50 so that they are released from the notches 58 and are urged into a position in which the flanges 22 will be engaged next time the stillage is erected.
Patent GB-323886-A (GB)
Title: Improvements in or relating to feedwater heaters for locomotive and like boilers
IPC: F22D1/42
Filed: 1928-12-05
Abstract: 323,886. Trevithick, F. H. Dec. 5, 1928. Feedwater, heating.-A feedwater heater 1 attached to the door 3 of a locomotive smokebox, as described in Specification 170,326, encloses an openended tubular member 15 forming an extension of the chimney 11. Coiled or U-shaped feedheating tubes arranged horizontally are connected to headers 4 on the outside of the smoke-box door. Plates 6, 5 at the top and bottom of the tubes force the furnace gases to pass between the tubes on their way to the chimney. A perforated cylinder 14 serving as a spark arrester is arranged between the tubes and the tubular member 15, which is so supported upon the plate 6 by a flange 16 held by pins 37 that the member may be readily removed, say when starting up. The chimney 11 may be formed with a separate lower part 36 resting upon the feed heater. In a modification, the spark arrester is U-shape and is supported by the smoke-box door. The feedwater is heated by main engine and pump engine exhaust, and by surplus boiler steam before entering the smokebox heater.
Patent GB-426258-A (GB)
Title: Improved method for producing composite metal castings
IPC: B22D19/16
Filed: 1934-12-15
Abstract: 426,258. Casting composite articles. AGA HEAT, Ltd., 456, Oxford Street, London. -(Bjorneborgs Jernverks Aktiebolag ; Varmlands, Bjorneborg, Sweden) Dec. 15, 1934, No. 36036. [Class 83 (i)] In casting articles, such as a stovo known under the Registered Trade Mark " Aga," consisting partly of iron containing 20-40 per cent of chromium and partly of a different alloy or of pig-iron, a cooling insert is placed in the mould to constrict it adjacent the junction of the two metals. The insert is made of cast iron, sand-blasted and cleaned in sulphuric acid and then placed at once in petrol until required. An insert 1 may be located against one or both walls of the mould 2, Fig. 3, or be supported by nails away from both walls 2, Fig. 4. The mould is filled to a point ¢" below the insert with the ferrochrome alloy 4 through a runner 9 then with pig-iron 5, through a runner 10, to 4" above the insert. After a pause of 20 seconds the mould is filled with the pig-iron.
Patent GB-1447236-A (GB)
Title: Methods of manufacturing integrated circuits including field effect transistors
IPC: H01L27/07
Filed: 1973-07-30
Abstract: 1447236 Integrated circuits SIEMENS AG 30 July 1973 [26 Sept 1972] 36133/73 Heading H1K The manufacture of an integrated circuit comprises forming a FET in a substrate and subsequently using an ion implantation step to introduce dopant into the channel of the transistor to reduce its threshold voltage, and also to form a resistor having a value between those of the transistor's conductive and blocked states. The ion implantation ensures that the FET is of the enhancement type. As shown, B ions are implanted into a channel region 3 in N-type Si substrate 1 between P-type source and drain regions 2, 4, and into a resistor region 5 between drain region 4 and P-type contact region 6, through thin oxide layers 33, 55. Preferably between 7 Î 10<SP>11</SP> and 1À2 Î 10<SP>12</SP> ions/cm.<SP>2</SP> are implanted with an energy of ca. 38 KeV. With conductivity types reversed, P ions are used. A single transistor and its resistor may form an inverter; two such units may be cross-coupled to form a flip-flop.
Patent GB-782968-A (GB)
Title: Halogenated organosilicon compounds
IPC: C07F7/21
Filed: 1955-12-16
Abstract: The invention comprises silanes and siloxanes of the formula <FORM:0782968/IV (a)/1> in which a is from 1 to 5, n is from 1 to 2, m is from 0 to 3, and R is a monovalent hydrocarbon radical or halogenated aryl hydrocarbon radical.  They are prepared by reacting alkali metal salts of chlorinated phenoxy acetic acids with silanes or siloxanes having 1 or 2 halomethyl substituents per silicon atom. The reaction is best effected in solvents such as dimethylformamide, pyridine, ethers, hydrocarbons and acetonitrile, at temperatures above 50 DEG  C., usually under reflux. Mixtures of the phenoxyacetic acids may be used.  Examples of the radical R include alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl and aralkyl, and chloro-, bromo- and fluoro-substituted aryl.  The siloxanes may be copolymerized with siloxanes of the formula R1zSiO 4-z/2 , in which R1 is hydrogen or a monovalent hydrocarbon or halogenated hydrocarbon radical and z is from 0 to 3.  This may be done by catalytic acid copolymerization, or by reacting the above alkali metal salts with a siloxane in which only some of the silicon atoms have halomethyl groups attached.  The compounds of the invention are useful as lubricants, lubricant additives and herbicides.  The examples describe the preparation of (1) <FORM:0782968/IV (a)/2> and a copolymer thereof with octamethylcyclotetrasiloxane, prepared by using a catalytic mixture of trifluoroacetic and sulphuric acids; (2) (p - chlorophenoxyacetoxymethyl) heptamethylcyclotetrasiloxane; (3) a copolymer of 5 mol. per cent of <FORM:0782968/IV (a)/3> 94 mol. per cent phenylmethylsiloxane and 1 mol. per cent vinyldimethylsiloxane; (4) a copolymer of 1 mol. per cent pentachlorophenoxyacetoxymethyldimethylsiloxane, 90 per cent dimethylsiloxane and 9 per cent chlorophenylmethylsiloxane; (5) 2,4-dichlorophenoxy-acetoxymethyl cyclohexyl octadecyl allyl silane; (6) <FORM:0782968/IV (a)/4>
Patent GB-1043080-A (GB)
Title: Improvements in or relating to filter elements for tobacco smoke
IPC: A24D3/14
Filed: 1965-08-24
Abstract: 1,043,080. Tobacco smoke filters. A. H. FLEISCHMANN. Aug. 24, 1965, No. 36325/65. Heading A2C. A tobacco smoke filter is impregnated with an unsaturated fatty acid and/or a salt thereof. The acid is selected from aliphatic acids of the general formula C n H 2n-1  COOH, C n H 2n-3  COOH, C n H 2n-5  COOH or C n H 2n-7  COOH, for example, oleic acid, arachidonic acid, linolenic acid, sorbic acid, linoleic acid or linolinic acid. Preferably the acid has from 6-22 carbon atoms. The acids salts are preferably the alkali metal, ammonium or zinc salts. The acid or acid salt may be applied from a solvent by immersion of the filter in the solvent, or by spraying the solvent on the filter, followed by drying.