baber/WOPTO huggingface dataset:
Patent GB-1239987-A (GB)
Title: Phosphonic acid derivatives
Inventor: CHRISTENSEN BURTON GRANT
IPC: C07F9/6571
Filed: 1968-10-24
Abstract: 1,239,987. Epoxy phosphonic acid derivatives. MERCK & CO. Inc. 24 Oct., 1968 [30 Oct., 1967; 15 May, 1968], No. 50635/68. Heading C2C. [Also in Division A5] Novel phosphonic acid derivatives of the general formula where R and R 1  are hydrogen, or substituted or unsubstituted hydrocarbyl, acyl or heterocyclic radicals or R and R 1  together form a cyclic ester group, are prepared by epoxidation of the corresponding propenyl derivatives, preferably with a peroxy compound. The invention also comprises the salts of the above compounds which are acidic, and also the compounds of formulµ Specified peroxidation reagents are hydrogen peroxide, inorganic peracids, perorganic acids, organic hydroperoxides, peroxy imidates, oxygen in the presence of a catalyst, oxidizing metal salts, alkali metal hypohalites, ozone and alkyl perborates or perphosphates. The sodium salt of cis - 1 - propenylphosphonous acid is prepared by reacting dibutylchlorophosphite with 1 - propynyl magnesium bromide, heating the resulting dibutyl - 1 - propynyl - phosphonite with an ion exchange resin, and subjecting the resulting 1 -propynylphosphonous acid to neutralization with sodium bicarbonate and catalytic hydrogenation.  Di - 2<SP>1</SP> - (methyl - 21 - butenoate) - cis - propenyl phosphonate is prepared by reacting methyl - 3 keto - butenoate, sodium hydride and diethyl ether and treating the resulting product with cis-propenylphosphonic dichloride. The bis - p - benzoquinone ester of cis - propenyl - phosphonic acid is prepared by reacting cis - propenylphosphonic dichloride with monocarbobenzoxy hydroquinone, followed by hydrogenation.
Patent GB-1292324-A (GB)
Title: Fluorescent compositions
Inventor: CHENOT CHARLES FREDERIC
IPC: H01J61/44
Filed: 1969-10-15
Abstract: 1292324 Luminescent materials GTE SYLVANIA Inc 15 Oct 1969 [15 Oct 1968] 50759/69 Heading C4S A phosphor has the formula where 0À2 # x # 0À001 and 0À1 # y. The phosphors are prepared by heating components which decompose below 700‹ C. including carbonates, halides, oxides, hydroxides, oxalates, tartrates and acetates, e.g. Cd(NO 3 ) 2 .H 2 O, ZnNO 3 .6H 2 O, boric acid, Tb oxalate decahydrate and optionally. Ga 2 O 3  are heated twice in air to 700‹ C.
Patent GB-1480201-A (GB)
Title: Four zone semiconductor device
IPC: G11C11/39
Filed: 1975-12-11
Abstract: 1480201 Semi-conductor memory device NCR CORP 11 Dec 1975 [6 Jan 1975] 50815/75 Heading H1K A programmable memory device consists of a PNPN semi-conductor zone structure with electrodes on its end zones and a charge storage means bridging one of the inner zones and separated from said zone and an overlying control electrode by dielectric material. The charge storage means may be constituted by a floating layer of aluminium embedded in aluminium oxide, or disposed between a thin silicon dioxide layer adjacent the zone and a thicker silicon nitride layer separating it from the control electrode, or by the interface between layers of silicon dioxide and silicon nitride. The mode of operation of a random access matrix memory array incorporating such devices is described. Specifications 1,055,682 and 1,367,325 are referred to.
Patent GB-1524250-A (GB)
Title: Sliding clasp fastener stinger and method and apparatus for manufacture
IPC: A44B19/40
Filed: 1975-12-15
Abstract: 1524250 Sliding clasp fasteners TEXTRON INC 15 Dec 1975 [9 Jan 1975] 51240/75 Heading E2S A sliding clasp fastener stringer consists of a continuous filament coupling element of which each coupling section has one leg 234 secured by thread 238 to one surface of a tape 228, and the other leg 232 secured to the opposite surface by threadless bounding 200, such as by adhesive, or ultrasonic or thermal bonding. The leg 232 may be notched at 254 with teeth 258 to bite into the tape, the notch locating thread 238.
Patent GB-1173282-A (GB)
Title: Shells of Plastics Material
Inventor: SOUTHAM ELDRED VAUGHAN
IPC: B29C51/14
Filed: 1965-12-06
Abstract: 1,173,282. Sheet forming. E. S. & A. ROBINSON (HOLDINGS) Ltd. 3 March, 1967 [6 Dec., 1965], No. 51585/65. Heading B5A. [Also in Division B8] A thermo-formed shell having one or more steep depressions is formed from a sheet blank of uneven thickness, the uneven thickness being due to the presence of one or more thermoplastic reinforcement layers giving an increased thickness to part of its area, and the depression or depressions being at the position or positions of increased thickness in the blank. The shell may be a tray for foodstuffs and a package completed by heat sealing thereon a sheet of lidding material.
Patent GB-518114-A (GB)
Abstract: 518,114. Kettles. PROCTOR, J. N. March 31, 1938, No. 9840. [Class 66] The filling and pouring spout 12 of a "lidless" kettle is provided with a hinged cover 15 which is raised to open the spout when a pivoted thumb-piece 26 provided in the hollow handle 24 is depressed. The handle, which is of heatinsulating material, is screwed to the ends of a clip 22 riveted to a central rib 14 upstanding from the otherwise flat top 13 of the kettle, the base part of the handle being of such shape as to complete the contour of the kettle. The cylindrical rear end 27 of the thumb-piece forms the pivot therefor and rests on a spring 28, both parts being received in grooves in the wall of the handle. The free end is in contact with a spring-controlled plunger 29 which bears on a part 19 of the cover extending rearwardly of the pivot 16.
Patent GB-1160911-A (GB)
Title: Semiconductor Devices
Inventor: SALISBURY IAN DAVID
IPC: H01L23/31
Filed: 1966-11-18
Abstract: 1,160,911. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 18 Nov., 1966, No. 51815/66. Heading H1K. A semi-conductor device comprising a die mounted on a metal substrate, and having leads one of which is connected to the substrate, is provided with an insulating encapsulation layer, and the leads are supported externally of the encapsulation by a bead of insulating material. As shown, Figs. 3 and 4, a transistor 1 is mounted with its base region in contact with a metal substrate 2 and is provided with thick leads 7 connected to the substrate 2 and to the other electrodes 4 by short thin leads 3 of gold or aluminium. The die is encapsulated with a coating 5 of thermosetting or thermoplastic material and bead 6 of similar material embeds the leads 7 a short distance from coating 5 to prevent stresses applied to the leads from being transmitted to the transistor. In a modification, Figs. 1 and 2 (not shown), the thin leads 3 are longer and replace the thick leads 7.
Patent GB-1211075-A (GB)
Title: Carpet gripper or securing device
Inventor: SMITH RONALD
IPC: A47G27/04
Filed: 1966-11-19
Abstract: 1,211,075. Securing carpets. R. SMITH. 20 Nov., 1967 [19 Nov., 1966], No. 51890/66. Heading A4S. A carpet-securing device comprises a U-clip 16 secured to a floor near to a wall, and a hardboard or plastics strip having a serrated edge 18 round which the carpet edge is folded, the strip being rotated about the ridge 28 and slid to abut the opposite edge thereof against the closed end 26 of the clip. The clip has a carpetengaging spike 22 and, in a modification, an apertured extension for securing the clip to a wall. Adjacent strips, cut to required length, may be held together by clamps or connecting pieces.
Patent GB-1525620-A (GB)
Title: Fuel delivery apparatus
IPC: G01F13/00
Filed: 1975-12-19
Abstract: 1525620 Fuel delivery apparatus KOPPENS AUTOMATIC FABRIEKEN BV 19 Dec 1975 [21 Jan 1975] 52194/75 Heading B8N [Also in Divisions G4 and G5] A fuel delivery apparatus has an indicator for fuel quantity and price composed of a set of 7-segment electro-mechanical characters connected by logic circuitary to a flow meter in the feed line. The indicator 33 is supplied with signals which energize coils 46, Fig. 3, to magnetize a high magnetic remanence core 47 to attract or repel a permanent magnet 45 on a pivoted arm 43 which carries a segment 41, 42 of the indicator display. The frame 40 and the control plate 44 are preferably black and the segments are pivoted from under the frame. The logic circuit is fed from pulse generators 8-10, Fig. 1, for each of supergrade, regular and Diesel fuel respectively. The pulses are supplied along two lines to a pulse checking device 11 and then to counters 12, 13 and arithmetic devices 14, 15 controlled by a price setting member 16. The outputs of litre counters 12, 13 and cost counters 19, 20 are fed to respective multiplexers 21, 22 whose outputs are fed to a comparator 23, and in binary and inverse code to memory stores 24, 30. A comparator 25 is used to check each successive information cycle with the previous cycle. The displayed information of the indicator 33 is also checked by a comparator 28. An oscillator 34 supplies clock signals. The BCD-coded information for the litre and cost indication is converted into a 7-segment code for the indicator, Fig. 8, by an apparatus which includes a random-access memory 60 to which BCD input is applied with a comparator 63. The output of the memory is supplied to a code converter 61 which transmits through seven lines to a multiplexer 64 and controlmember 65. The timing of the multiplexer 64 is controlled by outputs S 5  to S 11  of a decoder (57), Fig. 7 (not shown). The output of the converter is also applied to a parallel series converter 67 and a comparator 62.
Patent GB-1486255-A (GB)
Title: Vehicle chassis having pivoting axle systems
IPC: B60G11/28
Filed: 1974-12-03
Abstract: 1486255 Vehicle suspension S O HAMMARSTRAND 3 Dec 1974 [7 Dec 1973] 52283/74 Heading B7D In an articulated cross-country tractor having front and rear axles 10, 12 mounted by pivots 12, 13 for oscillation in respective transverse planes relative to front and rear body sections 3, 2, hydraulic cylinders 15, 16, 17, 18 connected between the body sections and the axles are associated with a fluid pressure circuit 25 operable when one axle pivots to cause the other axle to pivot by the same amount in the opposite direction. A distribution valve 30 in the circuit 25 provides alternative positions in which one axle is hydraulically locked while the other can pivot freely, both axles can pivot freely, or both axles are locked. A setting valve 34 fed by a pump 37 may be associated with the circuit lines to the cylinders of one or both axles for redistributing the fluid between the cylinders to controllably tilt the vehicle body. Non- return valves 44 admit make-up fluid to the circuit 25 from a reservoir 39. Double-acting cylinders may be used instead of single-acting cylinders.
Patent GB-1285497-A (GB)
Title: A process for producing needle-coke
Inventor: HOSOI TAKUJI
IPC: C10B57/00
Filed: 1970-11-04
Abstract: 1285497 Coking oils KUREHA KAGAKU KOGYO KK 4 Nov 1970 [7 Nov 1969] 52538/70 Heading C5E A process for making needle coke comprises cracking a petroleum hydrocarbon oil having a low sulphur content in a stream of O 2 -free high temperature gas or steam at 900‹ to 1500‹ C. for a time of from 5 Î 10<SP>-4</SP> to 5 Î 10<SP>-2</SP> second and coking a high boiling fraction from the cracking stage. Any coking method may be used, but delayed coking is preferred. Oils mentioned include light distillates, crudes with not more than 0À5% b.w. sulphur residuals, products of thermal cracking light oils, high boiling aromatic residuals and recycle stock from catalytic cracking light oils, dealkylation and hydroformer residuals, furfurol extracts, duosol extracts, and gas oils from petroleum coking processes. In one example, vaporized naphtha is cracked at 1210‹ C. in a combustion gas to produce ethylene, acetylene and a tar which is cut at 250‹ C. to leave a bottom oil which is coked. In another example, naphtha is cracked in steam at 1100‹ C. to produce ethylene and propylene and a liquid which is distilled at 450‹ C. to obtain a pitch for coking. In a third example, recycle oil is cracked in steam at 1015‹ C. and a pitch having a B.P. above 450‹ C. obtained for coking.
Patent GB-1411376-A (GB)
Title: Alkenyl succinic anhydrides acids salts and esters
IPC: C09K23/36
Filed: 1971-11-18
Abstract: 1411376 Detergents containing alkenyl succinic acid salts or esters UNILEVER Ltd 13 Nov 1972 [18 Nov 1971 15 Aug 1972] 53578/71 Heading C5D [Also in Division C2] Surface active agents or detergency builders comprise alkenyl succinic anhydride reaction products, acids, or mono- or di-salts or esters thereof, prepared by reacting a vinylidene olefine or rearranged vinylidene olefine (8-28 C) with maleic anhydride (see Division C2). The compounds may be the sole agents or in admixture with conventional agents in liquids, powders or bars. Examples describe the use of disodium alkenyl succinates prepared from mixed C 16 , C 18  and C 20  vinylidene olefines and C 14  and C 16  vinylidene olefines reacted with maleic anhydride.
Patent GB-1414890-A (GB)
Title: Electrode control switches for flat television screens
IPC: H01J17/49
Filed: 1973-11-19
Abstract: 1414890 Gas discharge display panels; gas discharge switches L SULLOS 19 Nov 1973 [20 Nov 1972] 53648/73 Heading H1D A gas-discharge switch for use with a crossbar address type gas discharge display panel (with which it may be structurally combined) comprises two straight parallel rows of electrodes 4, 5 which are arranged in confronting pairs in a chamber filled with low pressure gas, the electrodes 5 being connected in at least three groups in rotation, such as groups a, b, c as shown, with a connection for each group 6, 7, 8. The electrodes 4 are connected to the horizontal electrodes of the display panel the ends of which may actually constitute the electrodes 4 and connections 6, 7, 8 are fed by a three-phase supply to provide a vertically scanning discharge. Electrode 11 is used to initiate each scan.
Patent GB-1240785-A (GB)
Title: Production of lubricating oils
IPC: C10G67/04
Filed: 1969-11-04
Abstract: 1,240,785. Refining lube oil stocks. TEXACO DEVELOPMENT CORP. 4 Nov., 1969 [8 Nov., 1968], No. 53903/69. Heading C5E. Atmospheric reduced crude oils are subjected to deasphalting, hydrogenation and vacuum distillation to produce light lube oil distillate fractions and vacuum residuum. The atmospheric residuum is deasphalted with propane, n-butane or isobatane at 100-300‹ F. and 200-600 p.s.i.g. The hydrogenation is carried out at 400-800‹ F. and 260-1000 p.s.i.g. using a catalyst, e.g. of Co and Mo or Ni and Mo on alumina. Vacuum distillation of the hydrogenated residuum yields SAE10 and 20 lube oil stocks, gas oils and a vacuum residuum which is deasphalted at 120-300‹ F. and 250-900 p.s.i.g. to provide SAE50 lube oil stock and cylinder stock. The lube oil distillate stocks are solvent extracted with furfural, phenol, dichloroethane, sulphur dioxide or N-methyl pyrollidone at 100-250‹ F. and are then dewaxed with a dewaxing agent comprising a mixture of acetone, methyl ethyl ketone or n-butyl ketone and benzene or toluene or by catalytic hydrogenation at 450-950‹ F. and 0-5000 p.s.i.g. using a catalyst of Pt or Pd on an acid-treated synthetic mordenite.
Patent GB-1447895-A (GB)
Title: Processing a film insert in an aperture card
IPC: G03D5/04
Filed: 1973-11-22
Abstract: 1447895 Photographic processing apparatus EASTMAN KODAK CO 22 Nov 1973 [24 Nov 1972] 54249/73 Heading G2X A film insert 18 mounted in an aperture of a record card 10 is processed by clamping the card between a holder 36 and a sealing member 28 which confines the processing fluid to the exposed surface of the film 18 and the portion of the card at the edge of the aperture; this portion being compressed by members 36 and 28 so that it is impervious to the fluid. As shown, developer, fixer, water and drying air are fed in turn from tanks 84 through valves 52, shown in detail in Fig. 3 (not shown), through a slot 30 in member 28, and out of a slot 32 to a waste tank. Alternatively the card is transported by vacuum holder 36 between separate processing stations. A rotatable turret (34) Fig. 1 (not shown) may support one or more holders 36.
Patent GB-1274226-A (GB)
Title: Variable-pitch bladed rotors
Inventor: CHILMAN JOHN ALFRED
IPC: F01D7/00
Filed: 1968-11-15
Abstract: 1,274,226. Turbines; axial-flow fans; jet propulsion plant; oscillating motors. DOWTY ROTOL Ltd. Nov. 4, 1969 [Nov. 15, 1968], No.54283/68. Headings F1C, F1F, F1J and F1T. Pitch-change mechanism for the blades 10 of a variable pitch rotor, e.g. a ram air turbine or a ducted fan of a gas turbine engine, comprises a hydraulically operated vane type actuator 16 mounted within the rotor hub 13. The actuator 16 is annular comprising an inner part 17 having ten radially outwardly extending vanes 18 and an outer part 20 having ten inwardly extending vanes 21, the vanes 18, 21 defining chambers 23, 24. Both parts 17, 20 are angularly movable with respect to the hub 13 and are respectively provided with rings of bevel gear teeth 26, 27 which mesh with pinions 14 mounted on the blade roots 15. The actuator 16 is controlled by a rotary valve 29 operable by a mechanical input 30, the valve controlling the flow of liquid from a supply pipe 31 to the chambers 23 or 24 to urge the toothed parts 17, 20 in opposite angular directions and thus decrease or increase the pitch of the blades 10. The valve 29 is of the follow-up type so that when a selected blade pitch is reached the valve regains a neutral position. A drain pipe 32 is provided. The actuator 16 may be controlled by a speed responsive governor.
Patent GB-1275479-A (GB)
Title: Improvements in or relating to linear induction motors
IPC: H02K41/025
Filed: 1969-11-06
Abstract: 1275479 Linear motors MERLIN GERIN 6 Nov 1969 [7 Nov 1968] 54390/69 Heading H2A A linear induction motor comprises a plurality of spaced, circularly-arranged, polyphasewound cores defining axial air gaps between them in which are located a plurality of radially and exially extending armature plates. As shown in Fig. 2, the cores 24, 26, 28, 54, 32, 34 are secured to a casing 27 and the armature plates 12, 14, 16, 18, 20, 22 form part of a longitudinally movable, rod-shaped support 10. Each of the cores may be constructed similarly to core 54 is which a pair of laminated plates 5, 58 has a conduit 60 for cooling fluid located between them. In another embodiment, Fig. 3 (not shown), the armature plates are attached  to the outer casing and extend radially inwardly between cores attached to an inner support. In both embodiments, either the outer casing or the inner support may be movable and the other part stationary.
Patent GB-1136758-A (GB)
Title: Improvements in the manufacture of low-carbon steel
IPC: C21C7/10
Filed: 1965-12-22
Abstract: 1,136,758. Producing low-carbon steel. FRIED. KRUPP HUTTENWERKE A. G. Dec. 22, 1965 [Dec.23, 1964; Jan. 9, 1965], No.54464/65. Addition to 1, 014, 103. Heading C7D. Steel is conventionally produced with a carbon content in the range 0À03 - 0À12%, or appropriately more where an oxidizing agent is added to the bath, and is then tapped in the unkilled state, the steel being subjected to vacuum during tapping. A second vacuum treatment follows, whereby the carbon content of the steel is reduced to below 0À008%, or preferably less than 0À005%; this second step may employ any of the known methods of vacuum treatment. Oxygen or an oxygenreleasing substance such as carbon dioxide may be present during either or both of the vacuum treatment steps, preferably in an amount such that there is an oxygen partial pressure of 1 to 20 mm. of mercury in the free vacuum space, while after decarburization is complete alloying elements such as aluminium and silicon may be added under vacuum. The second vacuum treatment step may itself be divided into two stages, an oxidizing agent being employed in the first stage to effect decarburization, followed by use of an inert gas for degasification and possibly alloying.
Patent GB-1180690-A (GB)
Title: Gas turbine power plant
Inventor: ROBEY CHARLES WILLIAM
IPC: F02K3/062
Filed: 1968-11-18
Abstract: 1,180,690. Gas turbine ducted fan engines. ROLLS ROYCE Ltd. Nov.18, 1968, No. 54684/68. Headings F1G and F1J. A gas turbine engine comprises a main flow duct in which are mounted in flow series, compressor means, combustion equipment and turbine means drivingly connected to the compressor means, there being flow-dividing means for dividing the flow of combustion gases from the combustion equipment into respective separate flows which pass respectively to the compressor-drive turbine means and to a separate power turbine which is connected to drive a fan located in a duct which surrounds part of at least the main flow duct. The invention is shown applied to a gas turbine ducted fan engine suitable for use as a vertical lift engine. The engine comprises a compressor 20 and combustion equipment 21, the gas flow from which is divided by a member 25 into two streams, the inner stream passing to a turbine 22 which drives the compressor 20 through shaft 24, and the outer stream passing to a separate turbine 28 which drives a fan 35 disposed in duct 13. The turbine 28 comprises two blade stages 31, 32, the rotor assembly being mounted on a bearing 33 disposed within the flow dividing member 25, the radially outer ends of the first stage blades 31 carrying a shaft portion 36 on which the fan blades 35 are mounted by their root portions 41. The fan blades comprise two inner portions 42, a clapper portion 43 and an outer portion 44. The main flow duct is defined by walls 15, 16 and the fan duct by walls 16, 17, strut members 38, 39 inter-connecting the walls at the upstream end. The strut members 38 act as inlet guide vanes for the fan 35 and the struts 39 act as outlet guide vanes for the compressor 20. Inlet guide vanes 30 are provided at the inlets to the two turbines 22, 28. Outlet guide vanes 40 are provided at the outlet of the fan 35.