baber/WOPTO huggingface dataset:
Patent GB-1527242-A (GB)
Title: Rotatable brushes
IPC: A46B13/02
Filed: 1975-03-24
Abstract: 1527242 Rotary brushes BUTTERWORTH SYSTEMS Inc 16 March 1976 [24 March 1975] 12153/75 Heading A4K [Also in Division B7] A rotatable brush 25 for cleaning underwater surfaces comprises a disc 100 to one face of which bristles 101 are attached adjacent the periphery. A flexible or elastic membrane 103 surrounds the bristles to extend within 10 mm to 40 mm from their free ends. The arrangement is such that when the brush is rotated underwater, a reduction in pressure is produced within the volume confined between disc 100, the surface engaged by the brush and the membrane 103, thereby biasing the brush towards the surface.
Patent GB-1524117-A (GB)
Title: Method for compressing then expanding a television signal
IPC: H04N7/12
Filed: 1976-03-25
Abstract: 1524117 Television THOMSON-BRANDT 25 March 1976 [28 March 1975] 12157/76 Heading H4F The bandwidth of a television signal is compressed for recording on a video disc 135 in pairs of concentric circular tracks or two adjacent concentric spiral tracks by splitting each picture video signal V i  into a low frequency signal B i  and a high frequency signal H i . The signals B i  of n (e.g. five) successive pictures, rendered simultaneously available by a video signal generator 111, are frequency multiplexed on separate carriers in modulators 124-126 and recorded on one track, while just one of the signals H i  corresponding to one of the n successive pictures is recorded on the other track. Alternatively the mean of the signals H i  over the n pictures may be recorded. As shown the filtered (113-115) low frequency portion of the luminance signals Y i-2 -Y i+2  frequency modulate 124-126 subcarriers from oscillators 116-118 and are added 132 for recording on one track of disc 135 with the similarly frequency modulated 128-129 associated sound signals S i-2 -S i+2  from generator 111. The high frequency portion of one luminance signal Y, is obtained via filter 112, frequency modulated 130 on a subcarrier and added 133 to the chrominance signal C i  of that picture after frequency modulation 131 thereof on another subcarrier. The output of adder 133 is recorded on the second track of disc 135. Instead of recording H i  and C i  from one picture of the five (n) successive pictures the mean of the signals H i  and C i  from the five pictures may be recorded. Readout and display of the thus recorded video disc is effected by optically scanning each track five (n) times and successively gating out the appropriate low-frequency portions of the luminance signals and the associated sound signals from one track while repeatedly supplying the high frequency portion H i  and the chrominance signal C i  from the other track to a display monitor. The presence of one of the low frequency portions carriers in the high frequency portion channel is detected and used to ensure correct positioning of the disc pickup head assembly.
Patent GB-553020-A (GB)
Title: Improvements in or relating to liquid fuel containers
IPC: B65D65/40
Filed: 1940-07-27
Abstract: 553,020. Polysulphide resinous compositions. SHAKESBY, L., BAKER, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 27, 1940, No. 12229. [Class 2 (iii)] [Also in Groups XXIX and VIII] In a flexible or semi-flexible container for liquid fuel or oil in which the walls immediately in contact with the liquid are composed of fabric treated to render them capable of retaining the liquid, said walls comprise two or more layers of fabric and one or more layers of a synthetic rubber-like composition impervious to liquid hydrocarbons, the layers being firmly bonded together and at least one layer of the rubber-like composition being sandwiched between layers of fabric. The rubber-like composition may be a polymer or interpolymer of chloro-prene known as neoprene, or a polysulphide polymer obtained by reaction of an alkaline polysulphide with a suitable organic body. The fabric may comprise cotton sheeting; the composite material having a tensile strength of 150 to 220 pounds per square inch in both directions, and a rip strength of over 10 lb. In an example, cotton fabric weighing 4 ounces per square yard, and having 80 pounds tensile strength in both directions, is coated on one side with a dope of about 35 per cent. concentration made by dispersing in solvent naptha a mix comprising in parts by weight, neoprene 100, soft carbon black 50, whiting 50, magnesia 10, zinc oxide 10, cotton seed oil 5 and pine tar 5. Specification 502,681, [Group VIII], is referred to.
Patent GB-682017-A (GB)
Title: Process for the manufacture of therapeutically active substances
Filed: 1950-05-16
Abstract: 81 (i) An active substance useful for the treatment of malignant tumours is prepared by treating animal blood or milk at a temperature of 25 to 35 DEG  C. with an excess of a water immiscible sol vent to take up lipoid bodies; subjecting the thus treated blood or milk, separated from most of the supernatant solvent, to an adsorption treatment with a solid adsorbent, drying the adsorbate in vacuum; and eluting the dried pro duct in a neutral to slightly alkaline physio logical common salt solution at a temperature not exceeding 40 DEG C.  The preferred starting materials are blood taken from pregnant female animals or milk taken just after parturition.  Ether is the preferred water-immiscible solvent.  The adsorption treatment is preferably effected at a temperature not substantially above 0 DEG C. with a material such as kaolin, Fuller's earth or Bolus Alba.  The adsorbate may be dried under high vacuum at 45 DEG  C. to remove all traces of solvent before the elution step.  Speci fication 682,048 is referred to.
Patent GB-872495-A (GB)
Title: Continuously operating tea withering, fermenting and firing machine
Inventor: TULL DONALD WILLIAM
IPC: A23F3/08
Filed: 1959-04-10
Abstract: 872,495. Tea withering apparatus. CROMBIE, P. Jan. 6, 1960 [April 10, 1959], No. 12261/59. Class 34(2) A tea withering apparatus comprises an air heated chamber 1 through which trays 6, on which the tea is spread at 8, are conveyed in a zig-zag fashion in a series of horizontal traverses by a pair of parallel, spacedapart chain conveyers 3 to which the trays are pivotally secured by pins 7 to a discharge point 11. The chains are threaded over rows of driven sprockets 5 which raise or lower and also reverse the direction of travel of the chains, and one row is movable to adjust the tension of the chains. The trays have wheels 12 which run on runner angles 13 between the chains, the leading wheels engaging guides 14 when negotiating the turn-about at the ends of the chamber, while the trailing wheels lift a latch 16 which normally closes a gap 15 in the runner angle to permit the wheels to move from one runner angle to the next without moving from the horizontal plane. The latch falls back into position under its own weight when the wheels start in the reverse direction to provide a bridge over the gap.
Patent GB-416835-A (GB)
Title: High ohmic resistance provided with a protective coating of varnish
IPC: H01B1/00
Filed: 1934-04-24
Abstract: 416,835. Resistance coatings and deposits. ELEKTRISCHE GLUHLAMPENFABRIKEN J. KREMENEZKY AKT.-GES., 55, Dresdnerstrasse, Vienna. April 24, 1934, No. 12297. Convention date, April 27, 1933. [Class 37.] A high ohmic resistance which is formed as a thin layer of carbon or metal upon an insulating carrier and has a varnish coating is further provided with an intermediate coating which adheres slightly to the resistance layer for the purpose of providing greater protection against deterioration of the resistivity factor. A cellulose or other varnish containing a high proportion of non-binding filler may constitute the intermediate coating.
Patent GB-184235-A (GB)
Title: Improved ticket to be employed to indicate the reservation of places or seats
IPC: B61D41/04
Filed: 1921-04-29
Abstract: 184,235. Boucher, A. A. April 29, 1921. Ticket fastenings. - A ticket of the kind which can be bent round a rod and then held in position by interlocking means consists of paper or other flexible material, preferably rectangular in shape, and is provided with a separate metal clip having an extension which is adapted to be passed through a hole or slot in the ticket, the extension being afterwards bent to prevent its withdiawal from the slot. The clip may be of the shape shown in Figs. 2 or 4 and the hole or slot may be rectangular or circular. The Specification also describes a system of numbering seats in railway carriages and a system of gummed labels to be used in conjunction with the tickets for the reservation of such seats.
Patent GB-199208-A (GB)
Title: Improvements in coal, stone, and like breakers
IPC: B02C13/20
Filed: 1922-05-02
Abstract: 199,208. Pardee, F. May 2, 1922. Impact pulverizers.-Relates to coal and other breakers of the type comprising one or more rotary anvil members and one or more hammer members having a different velocity. In the form shown, a slowly rotating horizontal shaft 14 carries a number of notched discs 15 on to which the coal is fed from a shoot 30 at the ascending side, and a parallel shaft 18 rotating at high speed carries hammers 19 which pass between the discs 15 and break the coal thereon. The discs 15 are notched to form anvil members 16 which are grouped in pairs 17, Fig. 2. The hammers 19 may be all in line or arranged in staggered relation around the shaft 18. The striking face of the hammer mav be flat, convex, concave, or sharp-edged, or the hammer may be shaped as a coal pick. The shaft 18 is driven through a breaking-pin clutch and is geared through pinions with the shaft 14. The notches 29 in the discs have straight flaring sides into which the coal &c. is fed from the shoot 30 with tongues 31 entering between the members 16 of each anvil, and with flanges 32 to guide the lumps of coal so that they will span the blades. In a modification, each member 16 co-operates with the members on both sides of it and hammers are located between each two members 16, alternate hammers being offset angularly from each other. In another modification, Fig. 9, the hammers 56 and anvils 57 rotate on the same axis, coal being fed from a shoot 67 so that it falls into a notch just behind the hammer. The hammer, which in this instance rotates four times as fast as the anvil, overtakes the lump of coal in the position shown, and breaks it.
Patent GB-555570-A (GB)
Title: A new mixture of unsaturated fatty acids and a process for making same
IPC: C11C1/00
Filed: 1941-09-23
Abstract: 555,570. Fatty acids. OHIO STATE UNIVERSITY RESEARCH FOUNDATION. Sept. 23, 1941, No. 12332. Convention date, Oct. 4 1940. [Class 91] [Also in Group IV] Marine oil fatty acids are treated to separate them into fractions consisting of saturated and unsaturated acids (the latter having different numbers of double bonds) by dissolving in a solvent and cooling to effect fractional crystallization. The several cooling stages may be in the range 0‹ to -80‹ C., the first crystals being the saturated acids and the final solution the most highly unsaturated. The several fractions all contain acids of different molecular weights. Detailed examples are given of the fractionation of the acids of menhaden oil, other oils mentioned being herring, sardine and whale oils. Specification 439,128 is referred to.
Patent GB-729690-A (GB)
Title: Apparatus for stabilising and manoeuvring submarines
IPC: B63H25/42
Filed: 1953-05-04
Abstract: 729,690. Resilient engine mountings. HOKE, H. H. May 4, 1953 [May 15, 1952], No. 12361/53. Class 122 (3). [Also in Groups XIII and XXXIII] In a cushioned mounting for a power plant, which plant is a miniature form of that described in Specification 719,505, the base 76 is imposed on a rubber mat 77 seated on a secondary base 78, and a marginal cushion of rubber 79 is imposed upon the base and secured in position by a marginal flange 80 bolted to an upstanding flange 81 formed integrally with the secondary base. Specifications 710,924 and 718,857, [all in Group XXXIII], are referred to.
Patent GB-1181693-A (GB)
Title: Method of Rolling I-Sections with Parallel Flanges
IPC: B21B1/08
Filed: 1967-03-16
Abstract: 1,181,693. Rolling. INSTYTUT METALURGII ZELAZA IM. STANISLAWA STASZICA. 16 March, 1967 [17 March, 1966], No. 12369/67. Heading B3M. The flanges 2 of an I-section are brought from an inclined position to a position perpendicular to the web 1 of the section, in the final step of a rolling process.
Patent GB-1035706-A (GB)
Title: Improvements in or relating to a process for manufacturing sliding clasp fasteners
IPC: A44B19/60
Filed: 1964-03-24
Abstract: 1,035,706. Sliding clasp fasteners. LIGHTNING FASTENERS Ltd. March 24, 1964 [March 27, 1963], No. 12404/64. Heading E2S. A process for manufacturing sliding clasp fasteners comprises assembling together lengths of stringers, each comprising a stringer tape having fastener members, by interengaging their fastener members, mounting a plurality of sliders on the assembled lengths of stringers at spaced apart intervals depending upon the desired fastener lengths, applying reinforcement strips to the assembled lengths of stringers at spaced apart positions between the sliders depending upon the desired fastener lengths and severing the assembled lengths of stringers in positions so as also to cut the reinforcement strips and form separate sliding clasp fasteners each having a slider, each cut reinforcement strip forming end stops for successively cut separate fasteners. The sliders may either be assembled to the coupled lengths facing in the same direction as shown or alternatively they may face alternately in opposite directions. When the sliders face in the same direction each reinforcement strip or if strips are used on each side of the fastener lengths, the pair of strips, form the bottom stop of one fastener length and the two top stops of the adjacent fastener length, the cut which is made through the reinforcement strip or strips and the coupled lengths being T-shaped to produce these end stops. When the sliders are assembled to the coupled lengths facing in opposite directions alternately, bottom stops for adjacent fastener lengts are formed by cutting through a reinforcement strip on one side of the fastener lengths, the fastener lengths themselves, and if provided a reinforcement strip on the other side of the fastener lengths. The top stops are formed by bonding a strip to each fastener length on one or both sides of the length and cutting through the strips and the lengths simultaneously to provide four top stops. Instead of providing separate reinforcement strips on opposite sides of the lengths single strips can be used passing round both sides of the coupled lengths. Reference has been directed by the Comptroller to Specification 900,183.
Patent GB-989380-A (GB)
Title: Nitrogen recovery
IPC: F25J3/02
Filed: 1962-03-30
Abstract: A process for recovering pure nitrogen suitable for liquefaction from waste gas from nitric acid production by ammonia oxidation, containing oxygen, carbon dioxide and oxides of nitrogen, comprises reacting the waste gas over a palladium, platinum, rhodium, iridium or ruthenium catalyst with a fuel gas present in an excess over the stoichiometric amount required to reduce oxygen and nitrogen oxides present to a low level, contacting the waste gas before and/or after said reaction with ethanolamine and/or an aqueous solution of sodium, potassium or lithium hydroxide, scrubbing the gas with water and drying it. Fuel gases specified are hydrogen, hydrocarbons, for example natural gas or methane, carbon monoxide, coke oven gas, refinery off-gases or carbon monoxide-hydrogen-hydrocarbon mixtures. The catalyst is preferably supported. An additional water-scrubbing may be used after an alkali treatment prior to reaction with the fuel gas.  Preferred reaction conditions are 0 to 100 p.s.i.g. and 150 DEG to 800 DEG  C.  The liquefied product may be used to purify hydrogen, or to form a mixture of 3 parts hydrogen and 1 part nitrogen, by scrubbing.
Patent GB-363936-A (GB)
Title: Improvements in a process for manufacturing barium sulphate of definite granule size
IPC: C01F11/46
Filed: 1931-04-28
Abstract: In order to produce coarsely crystalline barium sulphate for example for use in paints, the chemically precipitated compound is heated at a temperature from 300-1000 DEG  C. or over in the presence of not more than 10 per cent, say ,1 per cent, of a fusion agent such as an alkali oxide, hydroxide, carbonate, chloride, sulphide or sulphate, or alkaline earth chloride or sulphide.  These may be added, or the water soluble reaction products obtained in the precipitation of the barium sulphate may be incompletely washed out.  After say 1-2 hours ignition the sintered mass is preferably chilled in water, and ground.  Specification 288,498, [Class 1 (iii), Oxides &c., Metallic], is referred to.
Patent GB-899542-A (GB)
Title: Apparatus for winding warp threads on a beam
IPC: D02H3/00
Filed: 1959-04-13
Abstract: 899,542. Beaming machines. RUTI MACHINERY WORKS Ltd. April 13, 1959 [April 11, 1958], No. 12488/59. Class 142(1) The beam is supported between two driving heads mounted on rails 4 to which they can be clamped to suit the length of the beam. Each head houses a centre 8 driven by a chain wheel 11, the centre having a square hole 8b to receive a square stub shaft of the beam. To remove a beam, the machine is brought to rest with a key 29 in the centre 8 in line with a keyway 30; a pneumatic cylinder 35 is then operated to retract the centre 8 by a distance 8d, the beam itself being prevented from moving by a fixed stop 36 abutting the stub shaft. The upper part of the wall of the square hole 8b is cut away for a distance 8c so that the beam is now free to be lifted out of the centres. This is done by engaging a hook 46 under each stub shaft; the hook is pivoted at 45 to an arm. 42 driven through worm gearing 51, 52 to swing the beam out of the machine.
Patent GB-1081275-A (GB)
Title: Egg laying batteries
IPC: A01K31/17
Filed: 1966-03-22
Abstract: 1,081,275. Poultry batteries. KEEN MANUFACTURING CORPORATION. March 22, 1966 [April 15, 1965], No. 12499/66. Heading A1M. A cage batery for laying hens comprises spaced inverted-V-shaped frames 10 interconnected by elongated troughs 24 supported in brackets 22, and rows of cages partially supported on the troughs by means of hangers 61. The frames 10 are further connected by rod-like members 18 to which are secured sloping wires 20 which support the floors 31 of the upper rows of cages. The rear-to-front wires of the cage floors are extended and bent as shown to form an egg-receiving trough in which an endless belt conveyer 35 is located, the belt being operated intermittently to deliver the eggs to a collecting bin. Brackets 80 support the return run of the egg conveyer and also serve to connect adjacent cages together A V-section water trough 70 is adjustably positioned in front of each row of cages, a plastics liner 76 rendering the trough watertight. A feed trough 24 preferably extends around the battery at each level feed being moved along the trough by means of a conveyer chain the links of which carry scraper plates. Feed is delivered to the trough from an overhead hopper with a pair of delivery shoots one corresponding to each trough of the battery. The legs 11 or the frames 10 are provided at their lower ends with vertical portions and planks (16) are located against these portions to define a area in which droppings falling through the floors of the cages are confined.
Patent GB-693615-A (GB)
Title: Joints for concrete slabs
Inventor: LOE JOHN ALLISTER
IPC: E01C11/10
Filed: 1949-11-25
Abstract: 693,615. Joints in concrete roads and other concrete paved areas. NATIONAL RESEARCH,DEVELOPMENT CORPORATION. Feb. 26, 1951 [Nov. 25, 1949] No. 30270/49. Classes 20(ii) and 20(iv) A contraction or warping joint in a concrete paved area, e.g. a road or airfield slab, is formed by placing on the surface to be covered spaced suports 1, Fig. 1, e.g. of pre-cast concrete, pressed steel or wire, carrying a strip 2 of preformed filling material and a withdrawable bar 3, pouring the concrete to incorporate the supports 1 and strip 2 in the covering and when the concrete has partially set, withdrawing the bar 3 to leave a groove which is subsequently filled with a sealing compound. Cracking along the line of the joint is thus induced, when the joint acts as a contraction joint or if reinforcements or the bars are carried across the joint, it acts as a warping joint. The supports 1 are formed with grooves to receive the bar 3 which comprises a metal bar 4, Fig. 2, capped with a strip 5 of sponge rubber, the whole being covered by sheet rubber 6. The rubber capping serves to prevent damage to the bar and supports by vibrators used in compacting the concrete. While the concrete is still plastic, the bar 3 is partly withdrawn and may be used as a guide for arrising the joint edges, complete withdrawal of the bar being effected when the concrete is stiff.
Patent GB-543096-A (GB)
Title: Improved resinous condensation products and methods of producing same
IPC: C08G12/04
Filed: 1940-08-06
Abstract: 543,096. Resinous condensation products ; proofing permeable materials. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1940, No. 12632. Convention date, Aug. 10, 1939. [Class 2 (iii)] [Also in Group VIII] Resinous condensation products are prepared by heating together an aliphatic aldehyde and a diamide of an unsaturated dicarboxylic acid containing a CH  2  =C # grouping and in which the carboxyl groups are attached to different carbon atoms. Specified diamides are itaconic diamide, methyl itaconic diamide and glutaric diamide, and the condensation may be carried out under acid, alkaline or neutral conditions. Inter-condensates may be produced by adding other aliphatic-aldehyde-reactable organic compounds capable of forming a methylol derivative as an intermediate during the resin formation, e.g. urea, phenols or acetone. The products may be used alone, or mixed with fillers, pigments, dyes or lubricants, as moulding compositions. The liquid condensates may be used in the production of paints, varnishes, lacquers or enamels, and as adhesives. The products may also be used as fire-retardants and water-repellents when applied to wood or to fabrics. Examples are given of the preparation of resinous condensates from itaconic diamide and formaldehyde, with or without phenol or urea. Curing catalysts may be incorporated with the condensates, or self-curing characteristics may be imparted to the resins by inter-condensing into the initial condensation products such substances as chloroacetamide, mono-chloroacetyl urea, chloroacetonitrile, chloral hydrate, chloroacetone, nitrourea, sodium nitrourea, methylene diamino monohydrochloride, aminoacetamide hydrochloride and diethanolamine hydrochloride. The resins of this invention may be modified by introducing before, during or after condensation, partially hydrolysed wood products, lignin, proteins, protein-aldehyde condensation products, phenol-aldehyde condensation products, aniline-aldehyde condensation products, furfural condensation products, alkyd resins, sulphonamide-aldehyde resins, water-soluble cellulose derivatives, natural gums and resins such as copal, shellac or rosin, polyvinyl compounds and super-polyamides. Specified optional additions to the condensation products are alpha cellulose flock, barium sulphate, zinc sulphide, titanium oxides, flaked aluminium or copper, stearates or palmitates of tin and zinc, and waxes such as carnauba and paraffin wax. An example is given of the preparation of a laminated article by dipping paper sheets into an acidified condensation syrup, drying at 80‹ C., superposing the sheets, and beating under pressure. Specifications 519,349 and 542,513 are referred to.