baber/WOPTO huggingface dataset:
Patent GB-1199286-A (GB)
Title: Self Cancelling Switches
Inventor: HOLT WILLIAM DAVID
IPC: H01H43/30
Filed: 1966-12-13
Abstract: 1,199,286. Electrically released switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 27 Nov., 1967 [13 Dec., 1966], No. 55692/66. Heading H1N. A thermally operable self-cancelling switch includes a plurality of bimetallic elements heated sequentially to determine the overall operating period of the switch. Operating member 15 is biased to the open position shown in Fig. 1, by spring 26 and carries two bimetal arms 28, 29 formed with latches at their lower ends. Arms 28, 29 are in electrical contact with spring 26 through rivet 27 mounting spring 26 and arms 28, 29. Fined contact 21 is formed with two catches 22, 23 on its upper surface. To close the contacts, member 15 is moved clockwise so that the latch on arm 29 latches behind catch 22. The circuit is then completed through fixed contact 19, spring 26, rivet 27, bimetal arm 29 and fixed contact 21. As the current flows, bimetal 29 heats up and bends to one side freeing itself from catch 22 so that spring 26 urges member 15 towards the open position but before the movement is completed, the latch on bimetal 28 engages catch 23 so that the circuit is again completed between the fixed contacts through bimetal 28. Bimetal 28 heats up and bends to one side freeing itself from catch 23 so that spring 26 completes the movement of member 15 to the open position. When the switch is in either of the contacts closed position, the switch can be opened manually by depressing member 15 against the pressure of two springs 18 which support the bearing posts 16 of member 15 to move the latches on bimetal arm 28, 29 below the catches 22, 23 to free bimetal arms 28, 29 and allow spring 26 to pivot member 15 to the open position. In a modification in place of springs 18, bearing posts 16 are supported by a plate hinged at one end and supported by a spring at the other end.
Patent GB-1478045-A (GB)
Title: Polyurethane foams
IPC: C08G18/42
Filed: 1973-12-03
Abstract: 1478045 Overpacked polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Nov 1974 [3 Dec 1973] 55970/73 Heading C3R A moulded cellular polyurethane article is obtained by foaming, in a closed mould of volume less than that which the foam would occupy if allowed to rise freely, a mixture of a polyester polyol, a prepolymer from a polyester polyol and excess polyisocyanate, a blowing agent, and optionally other known ingredients of polyurethane foam-forming mixtures, at least one of the reactive components of the mixture having a functionality greater than 2, said component(s) being present in a proportion giving rise to a flexible product. The higherfunctional component may be the polyester polyol, the polyisocyanate or a non-polymeric cross-linking agent, and suitably introduces 0À01 to 1 branching point per 1000 units of molecular weight. In the examples 78À54 p.b.w. of a poly-ethyleneglycol adipate, 14À32 p.b.w. of 1 :4-butanediol, 0À5 p.b.w. of triethylene diamine and 0À3 p.b.w. of water are mixed with 98À5 p.b.w. of a prepolymer from poly-ethyleneglycol adipate and diphenylmethane diisocyanate. In Example 1 the polyester also contains trimethylolpropane residues; in Example 2 1 p.b.w. of the butanediol is replaced by trimethylolpropane; in Example 3 the diisocyanate contains c. 7 wt. per cent of crude material, of which c. 55% is of functionality greater than 2; there are thereby introduced 0À016, 0À038 and 0À054 branch points per 1000 MW in the polymer products, which are packed to give about twice the free-rise density.
Patent GB-1200610-A (GB)
Title: Process for manufacturing parts provided with a sintered surface layer
Inventor: HECK FRIEDRICH
IPC: F16D69/04
Filed: 1967-12-11
Abstract: 1,200,610. Friction members. DURIAWERK KARL KEMPF G.m.b.H. 11 Dec., 1967, No. 56265/67. Headings F2C and F2E. [Also in Division C7] Parts such as clutch plates having a grooved or notched sintered surface layer are compacted with a flat press tool to force surface material into the grooves. A powder layer applied to a backing plate is presintered, compacted with a ridged press tool to form grooves, sintered and finally compacted with flat press tool. A clutch plate with a spiral groove and a flank angle of 30-90 degrees and a total groove surface area of 20-35% may be produced, for a clutch running in oil. The oil enters the groove and cools the plate.
Patent GB-1208050-A (GB)
Title: An apparatus for simulating the movements of a sea vessel or land vehicle
Inventor: HERVIEU RENE
IPC: B25B1/24
Filed: 1968-11-27
Abstract: 1,208,050. Craft movement simulator; training drivers. R. HERVIEU. 27 Nov., 1968, No. 56304/68. Headings B7H and B7V. A simulator of the movements of a craft comprises a screen E, a projector 1, and means rotating the projector about two perpendicular axes. In Fig. 1 a variable-speed motor 30 drives through gears two rotary discs 39, 40. Wheels 51, 52 are rotated by the discs and are longitudinally slidable along but non-rotatable relative to shafts 23, 22. A nut 20 on a screwthreaded portion of shaft 22 has a projection positioned in a slot 18 in a leg 17 on the projection. Rotation of shaft 22 causes movement of nut 20 and thus rotation of projector 1 about a first axis through a foot 8. Shaft 23 is connected by bevel gear 16 to a screw-threaded shaft carrying a guide member 11 in which is located a roller Z slidable on a rod 10. Rotation of shaft 23 causes raising or lowering of the guide member and rotation of projector 1 about an axis through trunnions 7. A manual control 46 is connected to a screw 44 and nut 45 to control the position of wheel 42 on rotary disc 41. Shaft 43 is connected by gearing to a rotary element in the projector forming the image on the screen. Shaft 43 is also connected by gearing to a wheel 48 carrying arms 49, 50 with trunnions 53 entering guides 54 slidable along shafts 23, 22. Rotation of wheel 48 moves wheels 51, 52 to adjust the speed of the image in respective directions. Couplings 47, 31, 34 are provided.
Patent GB-1329299-A (GB)
Title: Method of reducing bit line to bit line coupled noise in a plated-wire memory stack
IPC: G11C11/155
Filed: 1970-12-01
Abstract: 1329299 Magnetic storage apparatus SPERRY RAND CORP 1 Dec 1970 [5 Dec 1969] 56940/70 Heading H3B In order to reduce noise in a magnetic plated wire memory including two arrays of plated wire bit lines the bit lines in each array are divided into groups and alternate bit lines of each group of one array are connected in a non- transposed manner to like alternate bit lines of the corresponding group of the other array and the remaining bit lines of each group of the one array are connected in a transposed manner to like remaining bit lines of the corresponding group of the other array. Each array 72 or 74 Fig. 3 (not shown) and Fig. 4 includes two planes 75, 76 and 77, 78 each plane including a plurality of parallel coplanar plated bit lines, e.g. 91, 92 and a plurality of parallel word lines orthogonal to the bit lines, the bit lines in each plane being divided into a plurality of groups, e.g. 60, 61. Each group is provided with two dummy bit lines D so that during read out a selected one of the storage bit lines A and a dummy bit line D are connected to respective inputs of a differential amplifier to cancel common mode noise signals. Corresponding bit lines, e.g. 91A, 91B, in the two planes of each array are connected together in a non-transposed manner at one end. The serially connected even numbered bit lines 0, 2, 4 ... 16 of array 72 are connected in a non-transposed manner, e.g. by line 91E to corresponding like numbered bit lines of array 74 and the serially connected odd numbered bit lines 1, 3, 5 ... 17 of array 72 are connected in a transposed manner to corresponding odd numbered bit lines of array 74, e.g. by line 92E. This transposed/non-transposed intercoupling of the bit lines results in a reduction of cross talk noise due to bit line generated noise fields. In order to ensure that the bit lines of each active line A dummy line D combination is either both transposed or both non-transposed alternate bit lines of two contiguous groups of bit lines are grouped together to define a bit of the word that is associated with a particular selected word line, e.g. bits 0, 1 of groups 60, 61. The bit lines that define pairs of bits of a word are interposed with each other, alternate bit lines defining a particular like bit as shown.
Patent GB-1490977-A (GB)
Title: Catalysts
IPC: B01D53/86
Filed: 1973-12-10
Abstract: 1490977 Treating exhaust gases UNITED KINGDOM ATOMIC ENERGY AUTHORITY 27 Nov 1974 [10 Dec 1973 13 May 1974] 57208/73 Heading ClA [Also in Divisions B1-B2] I.C. engine exhaust gases are treated for reduction of nitrogen oxides and oxidation of carbon monoxide using a catalyst comprising one or more platinum group metals, e.g. Pt, sputtered on to a particular carrier material (see Division B1-B2) comprising an aluminium bearing ferritic alloy substrate, which may be surface oxidized, provided with a continuous layer of adherent carrier material by application to the substrate of material at least partially in gel form, followed by firing. The carrier material may be alumina, ceria, yttria, zirconia, titania,or yttria-stabilized alumina. The alloy substrate may be in the form of a rolled, corrugated sheet. The exhaust gas treatment apparatus may comprise a pair of catalyst chambers, each containing the catalyst, connected for serial treatment of the exhaust gases with intermediate oxygen injection. Reference is made to Specification 1,471,138.
Patent GB-1194240-A (GB)
Title: A Fodder Loosening Implement.
IPC: A01F29/00
Filed: 1967-12-19
Abstract: 1,194,240. Animal feed appliances. TEXAS INDUSTRIES Inc. 19 Dec., 1967 [11 Jan., 1967], No. 57725/67 Heading A1M. [Also in Division B8] A fodder loosening implement comprises a frame 1, fodder loosening members 54 and members 42 for feeding bales to the loosening members and to retain the bales while the fodder is loosened. The bales are carried by an endless chain conveyer 7 into a passage 30A where they are guided by oppositely rotating tined rollers 42, and the fodder is loosened from above by a pair of tines 54 which repeatedly move through the bales. The fodder then passes through vertical knife blades (30B) and on to an outlet (28A) in the front of the implement, Fig. 5 (not shown). The tined rollers 42 rotate slowly whereas the loosening tines 54 move quickly, the movement of the tips of the tines 54 being variable by means of pin 59 and slots 60 to adjust the speed and extent of loosening. The frame 1 is supported by three ground wheels (16), (22), Fig. 5 (not shown), the implement is self-propelled, and is steered and controlled by an operator walking behind it. A motor 88 drives the movable parts of the implement and at least one ground wheel, and the transmission drive to the various moving mechanisms and to the ground wheel is controlled from a steering member (105), Fig. 7 (not shown).
Patent GB-1398217-A (GB)
Title: Alkali metal salts of polyester resins
IPC: C08G63/676
Filed: 1973-12-14
Abstract: 1398217 Glass fibre laminates ICI UNITED STATES Inc 14 Dec 1973 [8 Jan 1973] 58067/73 Heading B5N [Also in Division C3] A laminate of fibreglass mats is prepared by coating a sheet of polyethylene terephthalate (PET) film with a resin composition comprising the potassium salt of polyoxypropylene-bisphenol A fumarate, styrene as crosslinker, and dimethyl aniline and benzoyl peroxide as catalysts, placing the following layers each coated with the above resin composition, in the following order on the PET sheet: a continuous fibreglass mat, 2 layers of chopped fibreglass mats, another continuous fibreglass mat and a second PET film. After curing the PET films are removed.
Patent GB-1249534-A (GB)
Title: Improvements in signal converters
IPC: G06K1/18
Filed: 1969-11-27
Abstract: 1,249,534. Data storage. ALMEX A.B. 27 Nov., 1969 [29 Nov., 1968], No. 58145/69. Heading G4C. Digits recorded serially by bit on complementary channels KA, KB of a magnetic tape are transferred parallel by bit to a recoder 41 via a register 28-31 into which bits are routed by gates 24-27 as a chain of stages 22 is advanced on detection of successive bits, the first stage 22 being set on detection of a control bit recorded in both channels KA, KB. AND gate 7 detects the control bit to successively trigger monostable circuits 10, 12, 14, signals D, E being used to reset the chain 22 and enter a 1 in the first stage 22. The trailing edge of the control bit produces signal F which shifts the 1 to the second stage 22 in preparation for the first bit. Successive bits are detected by OR gate 19 to provide the following shifting operation of chain 22. If any bit is missing in a digit the sixth stage 22 will not be set and read-out control will not be actuated. If a bit, other than a control bit, is recorded in both channels KA, KB, gate 15 sets error bi-stable 16.
Patent GB-1409887-A (GB)
Title: Aircraft gas turbine engine noise suppression
IPC: F02K1/48
Filed: 1972-12-18
Abstract: 1409887 Jet propulsion jet pipe and nozzle DEFENCE SECRETARY OF STATE FOR 11 Dec 1973 [18 Dec 1972] 58304/72 Heading F1J The invention relates to a gas turbine engine jet pipe in which the ratio of the length to diameter is at least unity, a plurality of members being mounted within the jet pipe at a position adjacent the turbine and movable between positions in which they lie adjacent the wall of the jet pipe and in which they project into the gas flow and form a serrated restriction to gas flow through the pipe. The jet pipe 2 shown carries a series of pivotally mounted members 10 which are movable between positions in which they lie adjacent the inner surface of the jet pipe and in which they project into the gas stream as shown. The members may be of triangular form 10a, Fig. 4 and may be perforated as at 10e, or they may be of T-shape 10b, 10c, Fig. 5, the cross-pieces 10c of the T abutting to form a circular member; again the members may each comprise an arcuate portion 13 and an integral triangular portion 10d. The assembly shown in Fig. 1 comprises a turbine 1, a variable area nozzle 3 defined by flaps 7, and an outer casing 8. A layer of sound absorbent material 9 is disposed around the jet pipe. A re-heat flame stabilizing baffle 6 is disposed adjacent the fairing cone 4. The members 10 when in the projected position define a nozzle 3a upstream of the main nozzle 3. The object of the invention is noise suppression.
Patent GB-1395407-A (GB)
Title: Anti-g valve
IPC: B64D10/00
Filed: 1972-12-18
Abstract: 1395407 Valves HYMATIC ENG CO Ltd 17 Dec 1973 [18 Dec 1972] 58428/72 Heading F2V A valve assembly for automatically controling the inflation of bladders in an anti-g flying suit, comprises a casing 12, Fig. 1, having an exhaust channel 15, a pressure-fluid supply channel 17, and a suit channel 16 communicating with a pipe 38 adapted for connection to the suit. A spool valve 10 in the low-g position shown communicates channels 15, 16 via waist portion 18, but in the event of a high-g manoeuvre of the aircraft (e.g. between 2g and 8g), moves downwardly due to the g-effect on its own mass or on additional mass 19, to communicate channels 16, 17 whereby the bladders are inflated and compress parts of the pilot's body to prevent blood drainage from the head. In order to maintain the bladders somewhat inflated during low-g operation and thereby reduce the response time of the apparatus on initiation of a high-g manoeuvre, the channels 16, 17 are in permanent restricted communication as by the clearance around the spool, and a pressure-responsive valve is provided on the exhaust side of the assembly, whereby the suit pressure is never fully reduced to atmospheric pressure. The pressure-responsive valve may be a flap (50), Fig. 2 (not shown), biased to close by a mouse-trap spring (51) and located at a port exhausting the channel 15 to atmosphere. Alternatively, it may be a sleeve 60, Fig. 3, biased by a spring 62 towards a position in which it prevents communication between channels 16, 15. The spool contains a piston 26 subjected to the pressure in channel 16 via passages 27, 28 and to differential spring force, so that the spool and piston move together to connect the channels 16, 17 at 2g operation but thereafter the spool and piston move relatively with higher g values to produce progressive increases in suit pressure. A pressure relief valve 39 is arranged to crack at a suit pressure corresponding to operation somewhat above 8g. A rubber cover 20 enables the spool to be pressed down manually for testing purposes.
Patent GB-1139990-A (GB)
Title: Nuclear fuel element
Inventor: STOHR JACQUES
IPC: G21C3/26
Filed: 1967-12-27
Abstract: 1,139,990. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 27 Dec., 1967 [25 Jan., 1967], No. 58735/67. Heading G6C. A fuel element comprises a mass of ceramic fuel 14, e.g. an oxide (UO 2 , PuO 2  or a mixed oxide of U and Pu), carbide or nitride, in finely divided form, compacted in a tubular zone between a metallic can 6 and a core 12 of a porous, non-fissile refractory material retaining a substantial resistance to compression and creep at the working temperature of the fuel element and having end parts that project out from the fuel material and are covered by the end plugs 10 of the can. The core 12, which may be of graphite, Al 2 O 3 , MgO, ZrO 2  or SiO 2 , serves to absorb fission product gases and to secure the mechanical rigidity of the element. A graphite core has the disadvantage of reacting with the oxide fuel materials but the reaction kinetics, which are slow if the contact temperature between the fuel and the graphite is low and if the external pressure of the coolant gas is high, result in acceptable valves in the case of a reactor operating with a coolant gas at a high pressure, e.g. 60 bars. In order to avoid any reaction, however, the graphite core may be coated with a refractory oxide, e.g. Al 2 O 3 , MgO or ZrO 2 , by spraying it with a suspension of the refractory oxide in a flow of hot gas. In a process of manufacturing such a fuel element, a graphite core is prepared by machining or extruding a carbon mixture which is subjected to a graphitizing treatment and also to a treatment for increasing its porosity. The can 6 previously equipped with the lower plug 10 is placed vertically on a frame 18 and fitted with a loading funnel 20 provided with a central hub 22 through which the core 12 is slipped into position in the can 6. The fuel material is then poured into the funnel 20 and compacted in the can 6 by vibration of the frame 18. These operations are performed within a gas-tight vessel 24 in which a vacuum is maintained. When the filling is completed, the funnel 20 is removed and the end plug placed in position and screwed to the can 6, e.g. by electron beam welding.
Patent GB-1494733-A (GB)
Title: Air cushion vehicles
IPC: B60V1/00
Filed: 1974-12-16
Abstract: 1494733 Air cushion vehicles BRITISH HOVERCRAFT CORP Ltd 16 Dec 1974 [21 Dec 1973] 59618/73 Heading B7K An air cushion vehicle has body structure 21 extended laterally by upwardly foldable rigid platform portions 26 to enable the width of the vehicle to be reduced, bag and finger inflatable skirt 24, 25 supplied through flexible ducts 31 by a lift fan 30, a forward propulsion ducted fan 27 and retractable wheels (not shown) on which the vehicle may travel when the cushion is inoperative and the portions 26 are folded against the body structure. To assist forward propulsion in this mode of operation valve means may be operated to divert air from lift fan 30 to rearwardly directed propulsion ducts 35. In an alternative construction (Figs. 7-12, not shown) the portions 26 are inflatable by fan 30 when the skirt is inflated.
Patent GB-1339575-A (GB)
Title: Method and apparatus for manufacture of particulate fatty materials
IPC: A21D2/16
Filed: 1970-12-16
Abstract: 1339575 Granulating fatty materials EASTMAN KODAK CO 16 Dec 1970 [19 Dec 1969] 59642/70 Heading B5A To form, from a fatty material, a particulate product which is not susceptible to agglomeration, the fatty material, which must have a melting point above ambient temperature, is pumped, from a feed tank 13 where it is melted, to spray nozzles 20 situated inside a chamber 23 cooled by a supply of cold air from inlet 26; the particulate material so formed is passed through valve 58 on to a covered conveyer 32, where it is roughly mixed with a flow conditioning agent, e.g. silica, passed on to the conveyer from a powder feeder 55, the rough mixture being passed to an impact mill 63 for more thorough mixing. The air from the chamber 23 is recycled via exhaust conduit 35, conduits 36, 37 to the refrigeration unit 27, 28, and the fine particle size fatty material extracted with air is removed therefrom by a cyclone 33 and filter system 34, and passed on to the conveyer through valves 59, 60. The material on the conveyer is cooled by a flow of air from the cold air duct 25 passing through conduit 38, along the conveyer and into the chamber 23 through conduit 43. The process may be used to produce particulate fatty acids, fatty acid esters of polyhydric alcohols, e.g. glycerides, or carboxylic esters of polyhydric alcohols &c. Examples given are succinylated mono-glycerides having stearic, myristic, palmitic or behenic acid residues. The "flow conditioning agent" may be magnesium aluminium silicates, silica or starch.
Patent GB-1283785-A (GB)
Title: Production of ethylene copolymers containing hydroxyl groups
IPC: C08F10/00
Filed: 1969-12-17
Abstract: 1283785 Ethylene-unsaturated alcohol copolymers BADISCHE ANILIN- & SODAFABRIK AG 17 Dec 1969 [18 Dec 1968] 61434/69 Heading C3P Copolymers are prepared by copolymerizing (a) 100 parts by weight of ethylene, (b) 0À5 to 8 parts by weight of 3-methyl-3-butene-1-ol and optionally (c) up to 50 parts by weight of at least one further unsaturated monomer containing 3 to 15 carbon atoms, at 800 to 4000 atmospheres and 100 to 320 C. in the presence of a free radical initiator and optionally a polymerization regulator. Specified comonomers are vinyl esters of C 1-5  alkanoic acids and C 1-8  alkyl acrylates and methacrylates. The regulator may be a ketone, ether or aldehyde. The process may be effected batehwise or continuously and examples describe the copolymerization of (1) ethylene and 3-methyl-3-butene-1-ol, together with (2) vinyl acetate in the presence of (1) oxygen and propionaldehyde and (2) di-t-butyl peroxide.