baber/WOPTO huggingface dataset:
Patent GB-1149161-A (GB)
Title: Absorption pad for use in the treatment of wounds or the care of infants
IPC: A61L15/16
Filed: 1966-02-11
Abstract: 1,149,161. Laminated dressings. PAGEZELLSTOFFKREPP G.m.b.H. 11 Feb., 1966 [12 Feb., 1965 (2); 24 March, 1965], No. 6052/66. Heading B5N. [Also in Divisions A3 and A5] An absorption pad comprises an outer liquid permeable envelope H with wet strength containing a plurality of cellulosic sheets 4 arranged in superposed layers with capillary spaces between the layers and at least one cavity 12 formed through at least some of the layers from one internal face of the envelope, the capillary spaces opening into the cavity. The envelope may consist of one or more layers and may have a portion that is more liquid permeable than other portions overlying cavity 12. Sheets 4 may be formed of cellulosic wadding or flock and, instead of having their edges upturned as shown in Fig. 1, may be arranged flat with their edges connected together by tacking or sticking.
Patent GB-1447023-A (GB)
Title: N,n-dioxides
IPC: C07D311/86
Filed: 1975-02-13
Abstract: 1447023 N,N-Dioxides of bis basic cyclic ketones RICHARDSON-MERRELL Inc 13 Feb 1975 [8 March 1974] 6085/75 Heading C2C Novel compounds of formula wherein Z is oxygen or H 2 ; R 1  is carbon; R 2  is a sigma bond or oxygen; R 3  is methylidyne; A is a straight or branched alkylene chain having from 2 to 4 carbon atoms; R 4  and R 5  are each lower alkyl having from 1 to 3 carbon atoms or when taken together with the nitrogen atom to which they are attached represent the pyrrolidinyl, piperidino and morpholino group; R 6  is H or a group of formula with the proviso that one such R 6  group is H; R 1 , Z and R 3  taken together form a group of formula when each R 6  is H and R 2  is a sigma bond, are prepared by N-oxidation of a compound of Formula II Intermediates of Formula II are prepared by reaction of the appropriate base with a dihalo compound. Pharmaceutical compositions in conventional forms for oral or parenteral administration having anti-viral activity comprise an above novel compound and a carrier or diluent.
Patent GB-589452-A (GB)
Title: Improvements relating to the manufacture of thermo-plastic tubes
IPC: B29C49/00
Filed: 1945-03-12
Abstract: An accurate finely-finished bore is formed in lengths of thermoplastic tubing by threading the tube over an accurately-dimensioned mandrel, introducing lubricant between the tube and mandrel and passing the same through a furnace under external gas pressure substantially greater than atmospheric. The tube may be evacuated or filled with an inert gas to prevent oxidation of the lubricant and the mandrel is formed of a material of considerably greater co-efficient of expansion than that of the tube. The rates of feed and discharge to and from the furnace may differ so that the weight of thermoplastic per foot may be altered during treatment of the tube.  Specification 574,880, [Group XXIII], is referred to.
Patent GB-1325131-A (GB)
Title: Pump and filter unit
IPC: F04D29/70
Filed: 1972-02-10
Abstract: 1325131 Centrifugal pumps SETHCO MFG CORP 10 Feb 1972 [16 Feb 1971] 6181/72 Heading F1C [Also in Division H2] A pump and filter unit comprises a filter 51 for filtering liquid from the pump outlet 44, and an impeller 33 arranged to be driven by a motor through a magnetic coupling comprising driving and driven magnets 24, 28 respectively separated by a portion 20 which defines a chamber 27 in which the driven magnet 28 is housed and into which filtered liquid is introduced. Magnet 28 and centrifugal impeller 33 are mounted on shaft 31 supported by bearings 34 in plate 18. Liquid leaving the pump outlet passes through filter 51 and the majority to outlet 56. Some filtered liquid flows via bore 60, tubing 67 and tube 62 to a chamber 63 which communicates with the pump inlet through an annular opening 66 surrounding the shaft 31, and with chamber 27 through holes 64 in plate 18. This arrangement prevents solid particles in the unfiltered liquid at the pump inlet reaching the chamber 27 and jamming the driven magnet.
Patent GB-594565-A (GB)
Title: Apparatus for discharging fluids under pressure
IPC: A62C13/00
Filed: 1945-03-13
Abstract: 594,565. Discharging gases; discharging liquids. SPECIALTIES DEVELOPMENT CORPORATION. March 13, 1945, No. 6290. Convention date, March 13, 1944. [Classes 8 (ii) and 102 (ii)] [Also in Group XXI] Apparatus for discharging fluids under pressure comprises a fluid container 10 having an outlet 14 closed by a disc 26 formed with grooved weakened portions to facilitate shattering thereof to release the fluid through the outlet 14 to a conduit 45. A perforated cupshaped member 82 prevents the disc fragments from entering the conduit 45. In the form shown, the disc 26 is shattered by an electricallyfired cartridge 66 but any other suitable shattering means may be used.
Patent GB-794198-A (GB)
Title: Improvements relating to helicopters
Inventor: FORSYTH ARCHIBALD GRAHAM
IPC: B64C27/18
Filed: 1955-03-04
Abstract: 794,198. Helicopters. FAIREY AVIATION CO., Ltd. June 4, 1956-[March 4, 1955], No. 6411/55. Class 4. The tip of each blade 31 of a helicopter rotor is provided with two separate jet propulsion nozzles 32, 33 connected respectively by ducts 23, 24 to collector chambers 21, 22 in the rotor head. The chambers are coaxially arranged and connected respectively to the outlet ducts 11, 12 of separate compressors driven by gas turbine engines (not shown). The ducts 23, 24 may be enclosed within a further duct 41 which extends through each blade from root to tip whereby a flow of air to cool and silence the jets may be created by centrifugal action and the induction caused by the propulsion jets. In a modification the jets on one pair of diametrically opposed blades may be supplied from one compressor and the jets on the other pair of blades supplied from the other compressor. Fuel may be supplied to the jets and ignited.
Patent GB-1465185-A (GB)
Title: Mining tools
IPC: E21B10/26
Filed: 1974-02-12
Abstract: 1465185 Mining tools, augers; core samplers KENNAMETAL INC 12 Feb 1974 [20 Feb 1973] 06420/74 Heading E1F A point attack pick for mounting for free rotation about its longitudinal axis on mining tools, earth augers and core samplers comprises a body 76 that is axially shorter than and of greater diameter than the integrally associated shank 74 and a co-axial, forwardly tapering, hard metal carbide insert 90 having a head portion and a stem 88 that is considerably smaller in diameter than the head portion and is cemented in the leading portion of the body 76 so that the rear face of the head portion abuts the front face of the body, which has an axial length as long as the axial length of the head portion. The shank 74 can be so retained in a bore in a mounting block of the tool by a keeper 78 engaging in a groove in the shank 74 that the rear face of the body 76 abuts the front face of the block. All the faces at the stepped portions of the pick are perpendicular to the axis thereof. The head portion of the insert 90 may have a cylindrical rear portion, a conically tapered intermediate portion and a conical leading portion of greater taper than the intermediate portion. The stem of the insert is preferably of substantially the same diameter as the shank 74 and is of substantially half the length of the body 76, which may have a slightly tapered portion at the leading end. Such picks are mounted in blocks on rotatably driven carriers as disclosed in the referred to Specification 1241250. Reference has been directed by the comptroller to Specification 1241250.
Patent GB-199696-A (GB)
Title: Improvements in or relating to artificial-draught coolers for the cooling water of steam-condensing plant on vehicles
IPC: F28B9/04
Filed: 1923-03-06
Abstract: 199,696. Kohler, C. June 23, 1922, [Convention date]. Cooling condensers, air blast for.-The condenser cooling-water of a locomotive is distributed in fine streams from perforated pipes 3 arranged on a tender 1 on to horizontal perforated partitions 7 arranged in one or more compartments 4, 5, and is cooled by currents of air flowing in the same direction as and in contact with the streams. The air currents may be produced by one or more suction fans 8 at the rear of the vehicle. The air enters through louvres 10 at the sides of the compartments and through openings 11 at the front end, the latter openings utilizing the effect of motion of the vehicle. The cross-section of the structure approximates to that of the clearance gauge, as shown in Fig. 2. If desired there may be one cooling compartment only, with a suction fan on a shaft at right angles to the axis of the vehicle. Where two compartments are provided, the water cooled in the upper compartment may be passed to the lower one for further cooling. The cooled water is collected in a tank 13. The vehicle may be open at the top, but is preferably partially covered to exclude soot, dust, &c. The artificial draught may be created by compression fans at the front, in which case the louvres 10 are situated below the partitions 7 and serve as outlets.
Patent GB-793137-A (GB)
Title: Improved lubricant
Inventor: CLOGG ALAN DAVID
Filed: 1956-03-02
Abstract: Pipe-sealing compositions comprise a lubricating oil thickened to a grease consistency with a water-resisting metal soap and containing a metal powder and a minor proportion of a bitumen. Suitable oils have viscosities of 50 to 1000 SUS/100 DEG  F., mineral oils being preferred, though synthetic oils such as diesters, complex esters and blends thereof may also be used.  The soap may be any conventional water-resisting soap, e.g. the calcium and aluminium soaps of C12-24 fatty and hydroxy fatty acids such as are derived from tallow, wool-grease, glycerides, stearine, olein, whale oil or fish oils, and which may be associated with C1-12 fatty acids.  The powdered metal is preferably zinc but copper, lead, tin and aluminium may also be used.  The bitumens are preferably from petroleum sources, such as the bottoms fraction of petroleum vacuum distillation, and have a preferred penetration of 150-250 dmm/77 DEG  F.  Excess alkali must be avoided in the saponification lest it react with the metal which should be added at as low a temperature as possible.  In an example a pipe-sealing composition is prepared from the following ingredients: wool grease fatty acids, distilled whale oil fatty acids, mineral oil (100 SUS/210 DEG  F.), hydrated lime, bitumen (190/210 penetration) and zinc dust.ALSO:Pipe-sealing compositions comprise a lubricating oil thickened to a grease consistency with a water-resisting metal soap and containing a metal powder and a minor proportion, preferably 10 to 20 per cent wt., of a bitumen.  Preferred bitumens are those from petroleum sources, e.g., the bottoms fraction of petroleum vacuum distillation.  The lubricating oils may be mineral or synthetic, e.g., diesters, complex esters and blends thereof. Examples of water-resisting soaps are the calcium and aluminium soaps of C12-24 fatty and hydroxy fatty acids which may be associated with the corresponding salts of C1-12 fatty acids.  The powdered metal is preferably zinc, but copper, lead, tin, or aluminium may also be used.  An example is prepared from the following ingredients: wool grease fatty acids, distilled whale oil fatty acids, mineral oil, hydrated lime, bitumen and zinc dust.
Patent GB-1350736-A (GB)
Title: Process for production of acrylic acid and methacrylic acid
IPC: C07C51/42
Filed: 1972-02-14
Abstract: 1350736 Acrylic and methacrylic acids SUMITOMO CHEMICAL CO Ltd 14 Feb 1972 [15 Feb 1971] 6711/72 Heading C2C In a process for the preparation of acrylic and/or methacrylic acid by the gas phase catalytic oxidation of propylene and/or acrolein or of isobutylene and/or methacrolein with molecular oxygen, acrolein and/or methacrolein are/is stripped from the resulting aqueous product by contacting with oxygen. Air alone, or with enhanced oxygen concentration may be used as the oxygen source with a contact temperature of 0‹ to 80‹ C. in a wet wall, packed or plate, stripping tower. The resulting gaseous mixture after stripping is used as the oxygen source for further oxidation to the acids.
Patent GB-595504-A (GB)
Title: Improvements in or relating to machines for moulding dough and like plastic material
IPC: A21C7/01
Filed: 1945-03-17
Abstract: 595,504. Sheeting and coiling dough. JONES, D. A. March 17, 1945, No. 6747. [Class 87 (ii)] Dough from a hopper 1 is sheeted by rolls 2, 3, of which the roll 2 is laterally adjustable, coiled on a belt 4 by flaps 9, 13 (see Specification 595,544), and directed on to a pressure member 16 by a guide 44 which is pivoted at 44a and weighted at 15. Stops limit the oscillatory movement of the guide. The coiled dough piece is then rolled between the lower run of the belt and the member 16, which is adjustable in height by means of arms 17, 18 and screw-threaded spindle 21. Lateral walls, of which one, 35, is shown, prevent spreading of the dough as it passes between the lower belt run and the member 16. The dough-contacting face of the member 16 may be flat, concave or convex. A rigid plate backs the lower belt run. The moulded dough pieces fall down a shoot 22. The same or another shoot may be disposed below the rolls, as shown in dotted lines, to convert the machine into a rolling machine. The weight 15 may be replaced by a spring, or the member 44 may be not pivoted but moved bodily. According to the Provisional Specification the rolls may be spring-loaded and fitted with a safety cut-out device operated by the rolls parting when the operators hand is caught therein.
Patent GB-1159054-A (GB)
Title: Process for the preparation of Olefins
Inventor: MCGRATH BRIAN PATRICK
IPC: B01J23/28
Filed: 1967-02-13
Abstract: 1,159,054. Disproportionating olefins. BRITISH PETROLEUM CO. Ltd. 29 Jan., 1968 [13 Feb., 1967], No. 6750/67. Heading C5E. Olefins are prepared by co-disproportionating an initial mixture of an olefin of the formula R(R 1 )C=CR 2 (R 3 ), where the R substituents are H, alkyl or aryl groups, with an easily polymerizable tertiary olefin containing the grouping or a secondary olefin containing the grouping wherein Ar is an aromatic radical, in the presence of a catalyst comprising molybdena supported on Al 2 O 3  wherein the support or the molybdena on Al 2 O 3  catalyst has been modified by the addition of a minor proportion of alkali or alkaline earth metal ions. The catalyst may also comprise an oxide of cobalt. The catalyst may be activated by thermal treatment either in a stream of inert gas (e.g. N 2 , CO 2  or He) or in a stream of air or O 2  followed by a final treatment in an inert gas. Examples describe the co-disproportionation of a feed containing butene-2 and isobutene to give a product containing propylene and 2 methylbutene-2 using a catalyst containing 0.25% Na<SP>+</SP> and a catalyst containing 1.15% Ca<SP>+ +</SP>.
Patent GB-1094036-A (GB)
Title: Improvements in or relating to chill cast nylon film
IPC: B29C48/08
Filed: 1965-02-17
Abstract: A steam-treated chill-cast nylon film may be coated on one side with another thermoplastic polymer; as exemplified, 0.03 millimetre thick nylon film is extrusion-coated with a 0.05 millimetre thickness of polyethylene.  The steam-treated chill-cast nylon film is made by extruding a thin semi-molten web of nylon on to a surface, maintaining the web in cooling heat-exchange contact with the surface to cool the web until it becomes a self-supporting film, separating the self-supporting film from the surface, and treating both surfaces of the film with steam to render the film resistant to the formation of quilting and gauge bands.  The semi-molten web preferably is cooled to a temperature of 93 DEG C, for example by extruding the web at a temperature of 260 DEG C on to a casting surface maintained at a temperature of 93 DEG C; the web preferably has a thickness of from 0.01 to 0.08 millimetres.  The self-supporting film preferably is treated with steam at atmospheric pressure and at a temperature of from 100 DEG C to 110 DEG C, the steam treatment preferably being carried out on freshly prepared film.
Patent GB-1216553-A (GB)
Title: Improvements in or relating to the manufacture of filters for cigarettes
IPC: A24D3/02
Filed: 1968-02-12
Abstract: 1,216,553. Tobacco smoke filters. MOLINS MACHINE CO. Ltd. and D. W. MOLINS. 5 Feb., 1969 [12 Feb., 1968], No. 6855/68. Heading A2C. [Also in Division B8] Apparatus for depositing quantities of granular material such as charcoal between filter plugs 4 spaced at intervals along a moving paper web 3 which is curved upwardly around the plugs to form a channel, comprises a wheel 1 rotated in synchronism with the web so that each of a series of pockets 5 in the wheel discharges into a space between two plugs, and a flexible diaphragm, e.g. of rubber, fitted to the base of each pocket is deformed by air pressure admitted through a hole or holes 7 from a chamber 9 to assist in the discharge of the material as the pocket leaves the end of a guide 10. The communication between the holes 7 and chamber 9 may be through a valve. A modification is referred to in which the granular material is discharged simultaneously to a number of positions between plugs on a sideways-moving paper strip.
Patent GB-846102-A (GB)
Title: Improvements in or relating to spraying apparatus
Inventor: GOUGH EDWARD JAMES
IPC: B05B12/12
Filed: 1956-03-05
Abstract: The interior of a hollow vessel (e.g. a tapered fire extinguisher casing) is sprayed with a plastic substance (e.g. polythene) in powder or liquid form by means of a nozzle member, means being provided for axially reciprocating the nozzle inside the vessel and for rotating the vessel successively in opposite directions during the spraying.  Means may be provided for controlling the speed of reciprocation of the nozzle in accordance with the <PICT:0846102/III/1> varying cross-section or inner surface area of the vessel.  As shown, an article 41 is suspended from a conveyer 40 which moves the article to position above spraying apparatus 42 mounted in enclosure 43.  The article is suspended from the conveyer by means of supporting frame 47 mounted on one end of rod 48 which is rotatably mounted in a frame member 49 secured to conveyer 40.  A bell-shaped member 51 is provided on the rod 48 to engage rollers 52 and 53 on swing doors 45 and 46 in the walls of the spraying enclosure to open the doors to permit the passage of the article 41. The spraying apparatus comprises a vertical support 1 at the lower end of which is mounted a cylinder 2 provided with a piston 3 and upwardly-extending rod 4.  A spray pipe 5 of brass is secured to the outer end of the piston rod, the other end of this pipe being provided with a slit or slits 6 to form a nozzle through which the polythene is sprayed.  These slits are so provided that most of the polythene is sprayed sideways on to the vessel, but enough is sprayed upwards and downwards to ensure that the uppermost and lowermost parts of the vessel are coated.  The spray pipe 5 is guided by means of the member 7 running between the guide members 7b.  At the top of support 1 are two clamps 54 which surround the lower end of the article 41 and hold it steady in the spraying position.  The clamps are operated by compressed air through air lines not shown, and are adapted to open to receive the article and then to close in response to pilot valves 56, 57, 58 on the conveyer, which valves are actuated by the passage of the article 41.  Mounted on the conveyer above the spraying apparatus is an electric motor 59 to rotate article 41 during spraying, first in one direction, then in the other.  The motor 59 drives, through gearing 60, the belt 61, which engages and rotates roller 50 on rod 48.  Mounted near the spraying apparatus is an electric motor 8, the drive-shaft 9 of which projects from each end of the motor.  One end of the shaft supports the air control gearing, the other the electric switch control gearing.  The Specification includes a detailed description of the electric and pneumatic systems controlled by this gearing, which serve to time and operate the successive movements of the apparatus.  The apparatus may form part of a continuous system layout comprising a loading bay, a shot blast plant, a vacuum dustextractor plant, a preheating oven, the spraying enclosure, a fusing oven and an unloading bay.
Patent GB-1068024-A (GB)
Title: Improvements in or relating to discrete-level pulse transmission systems
Inventor: OXFORD ALAN JOHN HENRY
IPC: H04L25/06
Filed: 1963-02-21
Abstract: 1,068,024. Transistor pulse-shaping circuits; pulse modulation; data transmission systems. PLESSEY-UK Ltd. Feb. 19, 1964 [Feb. 21, 1963], No. 6945/63. Headings H3T, H4L and H4P. In a digital single-sideband pulse transmission system of the kind employing pulses having two or more discrete levels, and durations equal to integral multiples of a basic bit duration and in which the reference or zero level in received pulse trains is subject to variation due to distortion, in the transmission path, of the low-frequency components, so that pulses regenerated from the received signal are liable to be subject to error, a low-frequency component is derived from the regenerated pulse output, by a network which distorts the signal waveform by the same amount but in the opposite sense to the distortion inherent in the transmission system, the low-frequency component derived at the output of the network being combined with the received pulse train to compensate for said variation in zero level. It is stated that a single-sideband system of transmission involves the use of filter networks at the transmitter which introduce distortion of the low-frequency sidebands, and also permit transmission of a certain amount of unwanted sideband whereby further distortion is introduced during detection at the receiver. Thus a pulse signal I, Fig. 2, may appear at the input of a pulse regenerator, Fig. 1, at the receiver, as shown at II. The signal II is combined in adding network 1 with a signal III derived from the regenerated output to reproduce a signal IV from which the wander in the zero level has been eliminated. This is shaped and limited in amplitude quantizer 2, which delivers a signal VI to time quantizer 4 and digit rate extractor 3. The latter circuit comprises a square-wave generator which is synchronized by the signal VI applied thereto and from which are derived sampling pulses VIII for application to circuit 4. The sampling pulses cause circuit 4 to derive from the input signal IV applied thereto an output signal V which is an accurate replica of the original signal waveform I except for the introduction of a half-bit delay. The output from network 4, comprising the overall regenerated output signal, is applied to a low-frequency network 5 which, Fig. 3 (not shown), comprises a plurality of cascaded emitter-follower stages spaced by resistance-capacity networks so designed that it delivers an output III which compensates for the low-frequency distortion introduced during transmission.