baber/WOPTO huggingface dataset:
Patent GB-1419577-A (GB)
Title: Preparation of alpha,beta-unsaturated carboxylic acids
IPC: C07C51/145
Filed: 1973-07-27
Abstract: 1419577 α,#-Unsaturated carboxylic acids ROHM GmbH 27 July 1973 [31 July 1972 7 Aug 1972] 35874/73 Heading C2C [Also in Division B1] α,#-Unsaturated carboxylic acids are obtained by reacting ethylene or propylene with oxygen and carbon monoxide under substantially anhydrous conditions in a solvent medium (e.g. an aliphatic acid) in the presence of a catalyst system comprising, or derived from, (a) at least one solvent-soluble compound of Al, Be, Mg, Ca, Sr or Ba and (b) at least one solventsoluble compound of Pd, Ti, V, Cr, Mn, Zr, Nb, Mo, Tc, Hf, Ta or W. The oxycarbonylation is preferably effected in the presence of a water-binding agent (e.g. a carboxylic acid chloride or anhydride) and generally at 20‹ to 300‹ C. under atmospheric or superatmospheric pressure (e.g. 5 to 200 atmospheres gauge). A stoichiometric excess of CO and/or olefin may be used and the catalytic system is generally employed in an amount of 0À01 to 5% by weight of the solvent medium, the molar ratio of component (a) to component (b) therein being preferably from 0À1 : 1 to 10 : 1. Typical compounds employed as components of the catalyst system are chlorides, bromides, chlorates, nitrates, carbonates, hydroxides, oxides, formates, acetates, benzoates, phthalates, picrates, acetylacetonates, carbonyls or metallic complexes. The examples describe the oxidative carbonylation of ethylene and propylene to form acrylic acid and methacrylic and/or crotonic acids respectively. Propionic and isobutyric acids are obtained as by-products. Catalyst systems used comprise MnCl 2 /Al(Ac) 3 , WCl 6  / AlCl 3  / NaAc, WOCl 4  / AlCl 3  / NaAc, WCl 6  / BeCl 2 , TiCl 4  / Al(Ac) 3 , PdCl 2  / AlCl 3  / LiCI, PdCl 2  / CaCl 2 /Ca(Ac) 2 , PdCl 2 / MgCl 2 / Mg- (Ac) 2 , PdCl 2 /Al(Ac) 3 /LiCl and, for comparison, PdCl 2 /CuCl 2 /LiCl/NaAc [Ac = acetate].
Patent GB-454199-A (GB)
Title: Improvements in and relating to regulating arrangements for electric alternating current stage and similar lighting installations
IPC: G05F1/34
Filed: 1935-12-31
Abstract: 454,199. Supplying consuming devices. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Dec. 31, 1935, No. 36071. Convention date, June 1. Addition to 448,302. [Class 38 (iv)] In a regulating arrangement for A.C. stage and similar lighting installations in which the load is connected to A.C. supply through a pair of reversely connected discharge gaps in series with a choking coil, the gas or vapour discharge gaps are controlled so that when a potential is supplied to the lamps so that they are fully illuminated, the discharge gaps are conducting throughout the half waves of A.C. By this means flickering of the lamps is eliminated throughout the control range.
Patent GB-445214-A (GB)
Title: A cycle stand
IPC: B62H3/02
Filed: 1935-01-07
Abstract: 445,214. Cycle stands. WILFORD, T. L., 11, Pownall Street, Macclesfield, Cheshire. Jan. 7, 1935, No. 36081 /34. [Class 136 (i)] A foldable cycle stand comprises a drip tray a to collect mud, oil, &c. and a cycle supporting frame consisting of two uprights c hinged at their lower ends to the tray for folding and adjustment, and provided at their upper ends with hooks e or clips to engage the cycle frame, the uprights c being connected near their upper ends by a tie-bar h, which is secured in position by clamps after the uprights have been adjusted. The uprights c have telescopic extensions d, which are adjustably secured in the split ends of the tubes c by clips f provided with bolts g and wing-nuts g<1>, which also serve, in conjunction with clamp washers, to secure the slotted tiebar h in position. The uprights c are inclined over the tray to increase stability, and their bent lower ends c<1> are hinged in clips b under the tray a, so that the uprights may be folded down on to the tray after removal of the tie-bar h. The front wheel of the cycle is held by a forked member l pivoted to a bracket k on an adjustable slide i, the member l being extended at l<2> to engage the bracket k and form a stop. A member m engages the back fork of the cycle.
Patent GB-430916-A (GB)
Title: Improvements relating to photographic baths
IPC: G03C5/305
Filed: 1933-12-27
Abstract: 430,916. Photographic processing baths. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Dec. 27, 1933, Nos. 36369 and 36370. Convention dates, Dec. 24, 1932 and Sept. 28, 1933. [Class 98 (ii)] A photographic bath for the treatment of photographic layers after exposure, including developing, toning or fixing baths, comprises as an addition to the usual constituents or in substitution for a part thereof an ammonia derivative containing in the molecule at least one hydroxyalkyl radical with or without other aliphatic or cycloaliphatic radicals. Examples given are mono-, di-, or triethanolamine, propanolamine, butanolamine, oleylethanolamine, cyclohexylethanolamine, hydroxyethylmorpholine, hydroxyethylpiperidine, hydroxyethylethylene diamine, ethyldiethanolamine. The ethers or hydroxyethers, or the salts, particularly those derived from weak acids, such as carbonic or sulphurous acids, of the hydroxyalkylamines may be employed. Examples of developing and toning baths are given. The hydroxyalkylamines may replace the alkali carbonates or hydroxides in the developer. The Specification as open to inspection under Sect. 91 comprises also the addition to baths of the kind referred to above of ammonia derivatives containing in the molecule at least one hydroxyalkyl radical with also mononuclear aromatic radicals. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1405271-A (GB)
Title: Process for the production of a phosphate-contai'ing fertilizer
IPC: C05B7/00
Filed: 1972-08-03
Abstract: 1405271 Ammonium phosphate fertilizer HELLENIC CHEMICAL PRODUCTS & FERTILIZER CO Ltd 3 Aug 1972 [4 Aug 1971] 36389/72 Heading C1A Ammonium phosphate fertilizer containing calcium sulphate (as inert diluent) is prepared by reacting phosphate rock (calcium phosphate) with phosphoric acid to produce calcium dihydrogen phosphate which is reacted with ammonium sulphate to produce ammonium dihydrogen phosphate and calcium sulphate, the remaining phosphoric acid being reacted with ammonia to produce ammonium dihydrogen phosphate and the calcium sulphate content of the fertilizer product (ammonium dihydrogen phosphate and calcium sulphate)- being controlled by the quantity of phosphate rock used in the reaction with the phosphoric acid.
Patent GB-430919-A (GB)
Title: Improvements in or relating to the control of electrical discharge appliances with gas or vapour filling
IPC: H02M1/06
Filed: 1933-12-27
Abstract: 430,919. Converting; motors. AKT.- GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Dec. 27, 1933, No. 36406. Convention date, Dec. 24, 1932. Addition to 430,915, [Group XL]. [Classes 35 and 38 (ii)] In a converter or frequency changer employing grid-controlled gaseous-electric discharge devices, suppression of the arc at each anode while the latter is still under positive voltage is effected by applying negative potential to control grids dimensioned and arranged as in the parent Specification and simultaneously raising the cathode voltage by causing a condenser connected between each main anode and an auxiliary anode to discharge through a path between the auxiliary anode and the cathode. In the example shown, a synchronous motor comprising a rotor winding 5 and polyphase stator winding 4 fed in series through a pair of grid-controlled discharge devices 2, 3 from a single-phase transformer 1 is caused to operate as a phase advancer by commutation of current between the two halves of the transformer secondary in advance of the voltage by the method described. Each of the main anodes 10, 13, 16, 19 of the discharge devices associated with the winding 4 are equipped with grids 11, 14, 17, 20 as described in the parent case, to which grids negative potentials are applied at appropriate intervals by synchronously driven rotary contact apparatus. Each discharge device is also equipped with auxiliary anodes 67, 22 connected to the main anodes through condensers 69, 70, 71, 72. These condensers are charged during the inoperative periods of the auxiliary anodes from an auxiliary winding 26, 27 on the transformer 1. The auxiliary anodes are associated with grids 68, 23 to which positive voltages are applied through the rotary contact apparatus simultaneously with the application of negative voltages to the grids associated with the main anodes. Thus an arc fed by the condenser voltages is started at each auxiliary anode at the moment when it is desired to terminate the are at the corresponding main anode, and accordingly under the combined influence of rise in cathode potential and the negative voltage on the suppressor grid current may be commutated in advance of the main anode voltage. Additional grids 12, 15, 18, 21 are associated with each main anode to facilitate ignition and reduce disturbances arising through the forced commutation.
Patent GB-1492196-A (GB)
Title: Sodium-sulphur storage battery
IPC: H01M10/39
Filed: 1975-09-05
Abstract: 1492196 Sodium-sulphur storage battery AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 5 Sept 1975 [8 Oct 1974] 36569/75 Heading H1B A sodium-sulphur storage battery comprises a sodium reservoir 1 of metal, incorporating a heater 10 between double metallic walls 1<SP>1</SP>, 1<SP>11</SP>, a solid electrolyte 2 connected to the reservoir, an anodic reactant 5, i.e. Na, contained in the electrolyte, a cathodic reactant 4 contained outside the electrolyte, and a battery housing containing the above-mentioned components. Wall 1<SP>1</SP> may be of Ni-Fe alloy and wall 1<SP>11</SP> of stainless steel; these are separated by insulator 11, e.g. of cylindrical mica members or a glass tube; 11 contains heater 10 of Ni-Cr alloy wire whose windings are closer at the top than the bottom. Ceramic electrolyte 2 may be betaalumina; its connection to the reservoir is described in detail in Fig. 2 (not shown); 3 is C felt impregnated with S or Na polysulphide, 6 is a cathodic collector in the form of strips of stainless or Mo-steel, and is connected to stainless steel cathode 7 having terminal 17; glass tape 12 surrounds cathode 7, and external heating coil 13 surrounds 12; 16 is the anode terminal. Reference has been directed by the Comptroller to Specification 1,392,911.
Patent GB-1102711-A (GB)
Title: Improvements in or relating to mounting devices
Inventor: BARNES ROBERT
IPC: H05K3/30
Filed: 1963-09-17
Abstract: 1,102,711. Mountings for transistors and like devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 17 Sept., 1964 [17 Sept., 1963], No. 36573/63. Heading HlK. An insulated, e.g. polypropylene, disc 1 has integral protuberances 13, 14 from one face so that an electric component such as the encased transistor 23 may be mounted on the disc in contact with the protuberances but spaced from the body of the disc. The protuberances 13, 14 are themselves surmounted by further integral projections 15, 16 for locating a transistor 23 as in Fig. 3; there are also downward projections 11, 12 to space the disc from a support surface such as the printed circuit board 24. The disc has slots 2 to allow for the component leads 23A, 23B to pass through the disc and be connected to terminals 25 on the board 24.
Patent GB-1314053-A (GB)
Title: Olefin polymerization
Inventor: LONGI P
IPC: C08F110/02
Filed: 1970-07-29
Abstract: 1314053 Olefin polymerization MONTECATINI EDISON SpA 29 July 1970 [31 July 1969] 36622/70 Heading C3P Olefins are polymerized by contact with a catalyst comprising (A) a hydride or organometallic compound of a Group I-III metal; and (B) the product prepared by contacting a titanium compound with a carrier comprising an anhydrous manganese halide in an active form or under conditions such that activation occurs. The component (B) may be prepared (a) by contacting a titanium compound with an activated anhydrous manganese halide obtained by dissolving an anhydrous manganese halide in an organic solvent and rapidly evaporating the solvent under reduced pressure and above 100 C.; (b) by grinding together a titanium compound and an activated support; (c) by treating an inactive anhydrous manganese halide with a liquid titanium compound or a solution of a titanium compound in an organic solvent under conditions such that the titanium compound becomes anchored on to the carrier; or (d) by contacting an anhydrous manganese halide with an excess of TiCl 4  at the boiling point and removing the excess. The examples, all of which relate to the polymerization of ethylene, illustrate the following catalysts: (A) Ai(iC 4 H 9 ) 3  with Ti[N(C 2 H 5 ) 2 ]Cl 3 ; Ti[OC 3 H 7 n]Cl 3 ; Ti[OCOC 6 H 5 ]Cl 3 ; Ti[OCOCH 3 ]Cl 3 ; 3TiCl 3 .AlCl 3 ; Cl 3 TiSO 3 -C 6 H 4 CH 3  ; Ti 2 [OiC 3 H 7 ] 3 Cl 3 ; TiCl 4 ; [N(CH 3 ) 4 ]Ti 2 Cl 9  or (C 5 H 5 NH) 3 TiCl 3  supported on MnCl 2 ; or Ti[N(C 2 H 5 ) 2 ]Cl 3  supported on MnBr 2 ; (B) Ti[N(C 2 H 5 ) 4 ]Cl 3  supported on MnCl 2  with AlH(iC 4 H 9 ) 2  or Al(C 2 H 5 ) 3 .
Patent GB-327169-A (GB)
Title: Electrical make and break contact for electric clocks and watches
IPC: G04C1/02
Filed: 1928-12-31
Abstract: 327,169. Walker, J., and Walker, J. V. Dec. 31, 1928. Electric clocks.-An electric clock in which a short spring B is re-energized by a magnet E and drives ratchet and pawl mechanism H, G to the clockwork H<1>, H<2>, and in which the armature lever F has a fork A positively making and breaking the circuit, is provided with an adjustable timing screw I on one arm of the fork to vary the time during which the magnet circuit is closed. The fork A coacts with a lever C which is friction-tight on its pivot and carries a contact coacting with a fixed adjustable contact D.
Patent GB-1003390-A (GB)
Title: Improvements in or relating to radar systems
IPC: G01S13/72
Filed: 1961-10-13
Abstract: 1,003,390. Radar. TELEFUNKEN PATENVER-WERTUNGS G.m.b.H. Oct. 13, 1961 [Oct. 13, 1960], No. 36902/61. Drawings to Specification. Heading H4D. In a pulse radar system having a rotating antenna a predictor computer (not described) estimates the probable future position of a moving target from previous target positions. Signals from targets not within the predicted zone are rejected. The received signals are fed to a digital detector, the output of which supplies a buffer store which feeds the signals, uniformly distributed in time, to the visual display. To prevent overloading of the store, the signals applied to it are subjected to two restrictions, first only those above a threshold value are used and secondly, of these, only those from the most probable target zone are selected. The choice of signals from threshold and zone considerations is effected in a filter, which feeds the store and which is subject to control from the computer. Each probable target position, calculated by the computer, generates two further values, in the filter, by the addition and subtraction of an increment 8. A new target signal is compared, in the filter, with a series of such previously calculated expected values, representing a zone of target positions, and a target signal for which coincidence with a calculated value occurs, is passed through the filter to the store. To prevent overloading of the system where a large number of targets are encountered in a narrow sector of the antenna scan angle, the target echoes are accepted into an additional store preceding the filter. A first echo is erased from the store when the following echoes fail to appear twice in succession and a known target is erased when echoes fail to appear four times. At each antenna bearing, the range is divided into 1,000 discrete units and 10,000 bearing units are scanned thereby providing 10<SP>7</SP> separate swept polar co-ordinates.
Patent GB-327758-A (GB)
Title: Improvements in the manufacture and production of valuable vat dyestuffs
IPC: C09B1/34
Filed: 1928-12-17
Abstract: 327,758. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 17, 1928. Chlorbromanthraquinone benzacridones are prepared by treating chloranthraquinone-benzacridones with brominating agents, or bromanthroquinone-benzacridones with chlorinating agents, or anthraquinone-benzacridones with chlorinating and brominating agents simultaneously, in organic solvents and preferably in presence of halogenating catalysts. Suitable organic diluents are nitrobenzene and trichlorbenzene and suitable catalysts are sulphur, iodine, metals or metal salts such as iron, antimony and the halides thereof. In examples chlorbromanthraquinone-benzacridones are prepared by treating (1) monobromoanthraquinone-2.1-benzacridone (obtainable by brominating the acridone in nitrobezene at 110- 120‹ C. with the aid of iodine) in nitrobenzene with either sulphuryl chloride or chlorine, iodine being present as catalyst, or (2) 4-chloranthraquinone-2.1-benzacridone in nitrobenzene with bromine, or (3) anthraquinone-2.1-benzacridone in nitrobenzene with bromine and sulphuryl chloride simultaneously, iodine being present as catalyst. These products give blue-red dyeings from a violet vat. The Provisional Specification refers to the preparation of chlorbromo-derivatives of anthraquinone-acridones generally. Reference has been directed by the Comptroller to Specification 7923/10.
Patent GB-1427942-A (GB)
Title: Electrical integrated circuit chips
IPC: H01L21/00
Filed: 1973-08-08
Abstract: 1427942 Semi-conductor devices PLESSEY CO Ltd 23 July 1974 [8 Aug 1973] 37579/73 Heading H1K The manufacture of an integrated circuit includes covering the surface of semi-conductor layer 21, Fig. 21, with a two-tier mask 13, 14, forming, in the upper tier 14, a window 15 whose periphery serves as a datum for locating the boundary of a zone 27, Fig. 23, etching the lower tier 13 through the window 15 and continuing the etching to form a cavity 16 which undermines the upper tier 14 and whose wall 17 determines the location of another boundary, introducing restoring material 24 to restore at least part of the original thickness of the lower tier 13, and etching the restoring material 24 to form a hole 19 whose periphery corresponds to that of the window 15 and defines the boundary of the zone 27. The device shown is a transistor in which the said another boundary defines the tolerance limits of the zone 27 which is the emitter. Alternatively, the method may be used to deposit a metal contact on a semiconductor zone. The method is stated to reduce the distance between boundaries to a fraction of a micron as compared with about 4 microns in the prior art. If the restoring material 24 is thicker than the original thickness of the lower tier 13, a liquid etchant is used to form the hole 19, otherwise the material 24 is sputter etched.
Patent GB-1127148-A (GB)
Title: Improvements in or relating to refractory materials and methods of making same
IPC: C04B35/03
Filed: 1966-08-22
Abstract: 1,127,148. Magnesia refractory. KAISER ALUMINUM & CHEMICAL CORP. 22 Aug., 1966 [25 Aug., 1965], No. 37619/66. Heading C1J. A refractory composition comprises (a) magnesia particles containing at least 97À5% MgO, 0À1 to 0À25% Cr 2 O 3 , and not more than 0À5% Fe 2 O 3  plus Al 2 O 3 , (b) 0À1 to 0À2% of finely divided silica, substantially all of which passes 100 mesh and a major proportion of which passes 325 mesh, and (c) an amount of a calcium compound forming CaO upon firing sufficient to provide a CaO : SiO 2  ratio of 1À75 : 1 to 2À6 : 1. The magnesia particles may be in brickmaking size ranges and a minor proportion of the particles pass 100 mesh. The silica may be pumicite or volatilized silica. The composition may be mixed with a tempering amount of water and with 1 to 3% of a chemical bonding agent, particularly 0À5-1À25% of at least one alkali metal, ammonium, or alkaline earth metal polyphosphate, forming the mixture into shape and firing it at a temperature of at least 1650‹ C. The refractory shape may be impregnated with tar and used in a furnace lining.
Patent GB-1196625-A (GB)
Title: Charging Device for Unstable Slurries and Thixotropic Pastes
Inventor: REUTHER WOLFGANG
IPC: B01J8/00
Filed: 1967-08-16
Abstract: 1,196,625. Feeding pastes. FORSCHUNGSINSTITUTE FUR NE-METALLE. 16 Aug., 1967, No. 37626/67. Heading B8S. [Also in Division F4B] Hopper 1 is vibrated to discharge paste to a reaction vessel through the apertures 9 formed in bottom plate 7, which is water-cooled, the hopper being carried by frame 2 which rests on springs 7 carried by base 5 supported on resilient blocks 11. The vibrator is carried on the frame 2 and a water seal 10 is provided to prevent escape of gases.
Patent GB-940480-A (GB)
Title: Electron discharge device
IPC: H01J29/62
Filed: 1959-11-06
Abstract: 940,480. Cathode-ray tubes. SYLVANIA ELECTRIC PRODUCTS Inc. Nov. 6, 1959 [Nov. 10, 1958], No. 37752/59. Heading H1D. In an image reproducing cathode-ray tube in which an immersion lens is formed by a cathode 27, a control electrode 31 and a screen electrode 37 and a tripotential focusing lens is formed by the screen electrode 37 and two further electrodes 41 and anode 43, the beam diverging from the cross-over 45 is converged to a focus on the screen. The control electrode 31 is of reduced thickness adjacent the central aperture therein. The diameter of final anode 43 may be less than that of the other electrodes, to improve focusing. The screen electrode 37 may be a cup as shown, or a disc ; electrode 41 may be a cylinder as shown, or an annulus, and the electrodes 41, 43 may be subdivided. In Fig. 7 the cathode 89 surrounded by slotted control grid 91 is disposed transversely and the electrode 95 has a portion of reduced diameter.
Patent GB-377791-A (GB)
Abstract: 377,791. Cash registers. GLEDHILL, A. H., Trinity Works, Halifax, Yorkshire. June 22, 1931, No. 17971. [Class 106 (i).] The keys of a key set and operated cash register are displaceable relative to their axis to engage the key coupler, so that when a key is depressed the displaced keys are also depressed, the displaced keys being returned to their normal positions by the coupler during its upward movement. As shown, the keys A are mounted by elongated slots a on a shaft a<1> and are displaceable forwardly of the machine to engage slots a<6> over the rearward end of the coupler B. A key is resiliently retained in its normal or its displaced position by a plate a<2> pivoted to the key, forked to embrace the shaft a<1> and notched to co-operate with a spring-urged detent a<5>. Upon the depression of a key the key coupler rises, carries with it those keys that have been displaced, and, towards the end of its upward oscillation, engages the rearward ends of the slots a<6> in the displaced keys to return them to their normal positions.
Patent GB-834591-A (GB)
Title: Device for shaping and re-shaping the tips of ball pens
IPC: B43K1/08
Filed: 1956-12-12
Abstract: 834,591. Making ball-point pens; spinning. ALBERTINI, S. Dec. 12, 1956 [Dec. 17, 1955; Dec. 1, 1956], No. 37915/56. Classes 83 (2) and 83 (4). In a device for shaping or re-shaping the tip of a ball-point pen three flanging rollers 15, 16, 17 rotatable on tilted axes 12, 13 and 14 confine the external circumferential envelope 1. of the seat of the tip to be shaped or re-shaped. The rollers may be cylindrical or may be shaped to suit the profile of the finished tip and are mounted preferably with axes intersecting on the axis of a rod 11, Fig. 3. In a modification, the rollers may be mounted in an internal cavity formed by projections at the head of the device.