baber/WOPTO huggingface dataset:
Patent GB-1141808-A (GB)
Title: Improvements relating to the operation of reactor systems
Inventor: WINSOR JOHN
IPC: C10G49/26
Filed: 1965-10-04
Abstract: 1,141,808.  Vapour phase reactor systems; desulphurizing aromatic feedstocks. BRITISH PETROLEUM CO. Ltd. 29 Sept., 1966 [4 Oct., 1965], No. 41939/65. Heading C5E. A process for operating a vapour phase reactor system under pressure so as to achieve rapid pressurization comprises passing a feedstock over a fixed bed of contact material in a reactor in the presence of an amount of hydrogen or H 2 -containing gas regulated so that the H 2  partial pressure is 0À001 to 5% of the reactor pressure, condensing condensible material at not less than the reactor pressure, passing the material to a high pressure separator and supplying directly to the separator a gas inert to the liquefied material therein in amount such that the liquefied material is saturated with gas and an excess of gas 15 provided, the pressure thus achieved in the separator in turn pressurizing the reactor to the desired pressure. The process is particularly applicable to the desulphurization of aromatic hydrocarbon feedstocks (e.g. benzene) without appreciable hydrogenation for example as described in Specification 1,141,809. The reactor pressure may be 30-1000 p.s.i.g. and is preferably equal to the separator pressure. The gas supplied to the reactor may be H 2  or mixtures containing at least 50 mol.-per cent H 2  and C 1 -C 4  hydrocarbons. The gas supplied to the separator may be H 2 , C 1 -C 4  hydrocarbons, N 2 , or mixtures thereof. Steam cracking tail gas or catalytic reformer off-gas may be used for both supplies. The contact material may be Ni supported on a refractory oxide of a Group II to V element or on kieselguhr, pumice or sepiolite.
Patent GB-1109025-A (GB)
Title: Control rod actuating mechanism
Inventor: SCHOPPEN WILLIBALD
IPC: G21C7/12
Filed: 1966-09-20
Abstract: 1,109,025. Controlling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. 20 Sept., 1966 [29 Sept., 1965], No. 42006/66. Heading G6C. [Also in Division F2] A control rod actuating mechanism for use with a liquid metal cooled fast reactor comprises elements 2 for gripping the top of the control rod 1, a rod 3 for actuating the gripping elements by displacement in a coaxial tube 4, means outside the reactor vessel for displacing the tube 4 through the reactor vessel wall, a metal bellows 10 as sealing means between the tube 4 and the actuating rod 3 and a gasket (not shown) as sealing means between the tube 4 and the reactor vessel wall, apertures 13 in the lower part 4a of the tube 4 which enable the liquid metal to flow freely through the tube 4, and guiding elements 14 rigidly connected to the tube 4 which make point contact with the actuating rod 3. The tube 4 is guided in its displacement by keys 15 which slide in longitudinal apertures 16 in a stationary outer guide tube. The liquid metal can enter the tube 17 freely through the apertures 16. The liquid metal provides continuous lubrication of the mechanism. The stationary outer guide tube is secured to a stationary tube which extends through the reactor vessel wall and supports a biological protection plug encircling the upper part 4b of the displaceable tube 4. The gasket which is located in the stationary tube cooperates with the displaceable tube 4 to bound a number of consecutive annular chambers and a sealing block. A small flow of gas derived continuously from a gas blanket above the liquid metal in the reactor vessel experiences a series of expansion steps in the annular chambers, the pressure differences being produced in a direction such that there is no leakage of active gas outside the reactor vessel. The gas circuit includes a reservoir, the dwell time of the gas in the reservoir being long enough for satisfactory deactivation. With such a gasket, high-speed rod movements of several metres become a possibility while on the other hand the movements of the bellows are short and slow with no maintenance problems arising.
Patent GB-1086961-A (GB)
Title: Improvements in "organosilicon materials"
IPC: C07F7/08
Filed: 1964-10-15
Abstract: The invention comprises (1) silanes of the formula <FORM:1086961/C3/1> (2) cyclic siloxanes of the formula <FORM:1086961/C3/2> (3) linear siloxanes of the unit formula <FORM:1086961/C3/3> (radicals on terminal Si atoms must be other than methyl), and (4) solid copolymers of <FORM:1086961/C3/4> and R1112SiO units, wherein R is a monovalent aryl or halo-aryl radical, R1 is an alkyl radical of 1 to 4 C atoms, R11 is H, R1 or an acyl radical, R111 is R, R1 or an alkenyl or cyanoalkyl radical, and n is 3 to 8 inclusive.  An aryl trihalosilane can be reacted with a t-alkyl alcohol in the presence of pyridine to yield t-alkoxy aryldihalosilane which can either be treated with an alkalibicarbonate in an organic solvent to yield the corresponding silane diol or be hydrolysed to yield cyclic siloxanes (2). Silanes (1) can be made by reacting aryl trialkoxysilanes with t-alkylacohol in the presence of an alkali alkoxide catalyst, and these, in turn, can be reacted with acid anhydrides to yield the corresponding acyloxysilanes.  The cyclic siloxanes (2) can be polymerized, e.g. using an alkali metal hydroxide, to yield linear siloxanes (3); and the copolymers (4) can be made by equibrating the cyclics (2) with cyclics of the formula (R1112SiO)n.  Examples describe the above preparation of (1) t-butoxyphenylsilanediol (2) t-butoxyphenyldimethoxysilane, (3) t-butoxyphenyldiacetoxysilane, (4) t-butoxyphenylacetoxysilanol, (5) 2,4,6-tris-(t-butoxy) - 2,4,6 - triphenylcyclotrisiloxane, (6) t - butoxyphenylpolysiloxane, and (7) t-butoxyphenylsiloxane-dimethylsiloxane copolymer.  Uses.-The polymers can be used for electrical insulation; silanes (1) and cyclics (2) can be used as process aids or plasticizers, e.g. phenylsilsequioxane can be plasticized with cyclics (2), as in Example 5, and the diol (1) can be used as a structure-reducing additive in silicone rubbers, as in Example (1).
Patent GB-1281357-A (GB)
Title: Process and apparatus for hydrogen fluoride recovery
Inventor: TELLER A J
IPC: B01D53/68
Filed: 1969-08-25
Abstract: 1281357 Gas recovery WELLMAN-POWER GAS Inc 25 Aug 1969 [5 Sept 1968] 42188/69 Heading C1A Gaseous hydrogen fluoride is removed from a gas containing it by passing the gas through a support material comprising alumina particles whose surface is coated with from 4 to 30 parts by weight of potassium hydroxide and/or sodium hydroxide per 100 parts of alumina. The alumina particles are preferably 1 to 20 mesh particles of activated alumina and are preferably coated with a monomolecular layer of the hydroxide. The gas is preferably at a temperature of 15 to 70 C. and the support material is preferably a bed of particles from 1 to 8 inches deep. An installation for carrying out the above process comprises an air vent, Fig. 1, including the support material positioned in the vent to contact the gas containing the HF as it passes through the vent.
Patent GB-1197397-A (GB)
Title: Process for the manufacture of Disazo Pigments
IPC: C09B33/147
Filed: 1968-09-05
Abstract: 1,197,397. Preparation of disazo pigments. CIBA Ltd. 5 Sept., 1968 [15 Sept., 1967], No. 42303/68. Heading C4P. Disazo pigments of formula (I) in which R 1  is an aryl residue, R 2  a naphthalene residue in which the azo, hydroxyl, and carboxylic acid amide groups are in the 1, 2 and 3- positions, R 3  is an arylene residue are prepared by heating a diazo-amino compound containing residue R 1  with a bis-naphthol of formula (II) in aqueous-organic solvent in presence of an organic acid, preferably a polyhalogenated fatty acid at 60-180‹ C. The diazo-amino compounds may be formed from an aryldiazonium salt and a primary or secondary amine including pyrrolidine, piperidine, morpholine, dicyclohexylamine. Organic solvents include chlorobenzene, nitrobenzene, o-dichlorobenzene pyridine, ethylene glycol, acids specified are formic, acetic, trifluoro, and trichloroacetic.
Patent GB-973967-A (GB)
Title: Improvements relating to telegraph systems
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H04L1/00
Filed: 1960-12-15
Abstract: 973,967. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. Dec. 8, 1961 [Dec. 15, 1960], No. 43153/60. Heading H4P. A telegraph system includes at the transmitter, means for deriving a plurality of check signals from a block of signal elements, each check signal comprising a number of elements which are individually derived from different groups of signal elements in the block, the different check signals being derived in accordance with different mathematical laws, and at the receiver, means is provided for deriving corresponding check signals from the received block of signal elements and for comparing them with the transmitted check signals in order to detect errors. Specification 636,700 is referred to.
Patent GB-1068775-A (GB)
Title: Cursive character generator
IPC: G09G1/10
Filed: 1964-10-23
Abstract: 1,068,775. Cathode-ray tube displays. RAYTHEON CO. Oct. 23, 1964 [Nov. 19, 1963], No. 43383/64. Heading H4T. In an arrangement for deflecting the beam of a cathode-ray tube to trace Alpha-Numerio characters the X and Y co-ordinates of a plurality of segments forming the outlines of the latter are determined by a like plurality of weighting elements to which sequential pulses are applied selected weighted outputs being fed to the tube deflection circuits through smoothing circuits while results in the character being formed with smooth curved segments some of which are undesired and are blanked out. Fig. 5, shows one embodiment in which the weighting elements comprise resistor networks 72, 74, the networks for each character being fed with sequential pulses from a generator 70 and connected to respective switching circuits 84, 86 to enable the desired character to be selected. Outputs from circuits 84, 86 are then fed to operational amplifiers 94, 98 which supply the X and Y deflection amplifiers 158, 160 via filters 154, 156 which smooth the discrete segment signals. This obviates the need for wide-bandwidth deflection circuits by avoiding sharp corners in the tracing of the characters and results in the beam changing direction in a smooth curve loop which does not form part of the characters, such loop then being blanked out by means of pulses derived via network 76 and switching circuit 83 and applied to the tube intensity control electrode 166. The weighting of each resistor in the networks 72, 74 is so selected that the beam moves at uniform speed and thus produces a trace of uniform intensity. Instead of employing a separate resistor for each segment (e.g. 40) a smaller.number (e.g. 6) weighted in a binary code fashion may be employed. The various steps in the tracing of the letter " R " together with required deflection and blanking waveforms are described with reference to Figs. 1 to 4 (not shown). In a further embodiment (Fig. 6, not shown) the X and Y co-ordinates are determined by a diode character-selection matrix which selects appropriate combinations of pulses to provide binary coded signals for application to the filters 154, 156 (Fig. 1) via digital-to-analogue converters.
Patent GB-1004061-A (GB)
Title: Improvements in wall ties
IPC: E04B1/41
Filed: 1963-11-05
Abstract: 1,004,061. Wall ties. H. C. NICHOLLS. April 30, 1964 [Nov. 5, 1963], No. 43609/63. Heading E1V. A wall tie of synthetic plastics material has a shank 17 formed with one or more transverse ribs 16 to prevent the passage of water along the shank. The shank, which is circular or oval in cross-section has a smooth polished surface to prevent adhesion thereto of mortar droppings. Forked wall-engaging portions 10 are perforated or roughened or provided with ribs 11, and the end portions are turned to provide flanges 14, 15.
Patent GB-933670-A (GB)
Title: Improvements in or relating to core boxes
IPC: B22C7/06
Filed: 1961-12-08
Abstract: 933,670. Core-boxes. FORD MOTOR CO. Ltd. Dec. 8, 1961 [Jan. 3, 1961], No. 43983/61. Class 83 (1). The junction between parts of a core-box is sealed by an air seal, pressure air being supplied to a network of holes 19, Fig. 1, or grooves 23, Fig. 4, to eliminate or reduce air/ sand leakage from the core cavity during blowing.
Patent GB-1515610-A (GB)
Title: Method of recovering selenium and mercury from metallurgical products
IPC: C01B19/02
Filed: 1976-10-22
Abstract: 1515610 Selenium and mercury PREUSSAG AG-METALL 22 Oct 1976 [23 Dec 1975] 43994/76 Heading C1A [Also in Division C7] Selenium and mercury are recovered from intermediate-products, by-products or waste products obtained from a metallurgical process, the products being suspended in water or dilute hydrochloric acid, chlorine gas is introduced into the aqueous suspension until mercury combined with selenium and/or sulphur, and elementary selenium, which are initially in the suspension, have gone into solution, the solution is alkalized to precipitate the mercury as mercuric oxide, and, after filtration to remove the mercuric oxide and acidification, the selenium is precipitated from the filtrate by reduction. The solution into which the chlorine gas has been introduced may be boiled to reduce the selenium. Residual mercury in the solution after alkalization may be precipitated by adding ammonium hydroxide solution.
Patent GB-1422528-A (GB)
Title: Providing a tube with a widened socket at one end
IPC: B29C53/00
Filed: 1972-12-26
Abstract: 1422528 Thickening and grooving tube ends INDUSTRIELE ONDERNEMING WAVIN NV 26 Dec 1972 [19 April 1972] 44324/72 Heading B5A The end of a PVC or polyethylene tube 1 (Fig. 2) is heated until thermally deformable, its wall thickness is increased between inner and outer supporting wall surfaces 5, 20, the outer wall of the pipe end is cooled while the outer wall surface 20 is removed, and the internal diameter of the tube end is increased to form a socket, there being sufficient residual heat in the tube end to raise its temperature again for deformation. A PVC tube end is heated to 140 C. and pushed over a mandrel 5 surrounded by a die 9. The die and mandrel are subjected to relative axial movement to thicken the tube end 3, which is then cooled to 75 C. to produce a skin by supplying coolant to the die 9 and mandrel 5. The die 9 is then moved away axially, and the tube end pushed over a mandrel enlargement 4 to form a socket, (see Fig. 3). An internal groove is formed in the socket by means of a mould 15, rubber ring 7 and conical slide 8, by suitably shaped segments attached to the mandrel part 4, or by blow moulding.
Patent GB-1360292-A (GB)
Title: Differential amplifier circuit
IPC: H03F1/52
Filed: 1972-09-26
Abstract: 1360292 Transistor amplifying circuits HITACHI Ltd 26 Sept 1972 [27 Sept 1971] 44422/72 Heading H3T In a differential amplifier comprising transistors T1, T2 with the collector to emitter path of a further transistor T3 as common emitter impedance, the base biases on the transistors T1, T2 are derived from a further transistor T7, in emitter follower connection over resistors R4 and R9 and R7. The input is applied to the base of transistor T1, over capacitor C3. An output stage comprising complementary transistors T4, T5 is driven from the collector circuit of transistor T1, negative feedback being applied from the output terminal to the base of transistor T2 by means of resistors R6, R7 and D.C. blocking capacitor C2. Transistor T6 comprising a current generator provides a D.C. path for transistor T5. The arrangement provides for the rapid charging of capacitors C2, C3 and decoupling capacitor C1, and also prevents a "pop" signal being produced, on switching on. Fieldeffect transistors may alternatively be used.
Patent GB-1370147-A (GB)
Title: Method and apparatus for sorting tomatoes by colour
IPC: B07C5/342
Filed: 1971-09-23
Abstract: 1370147 Orienting articles on endless conveyers NII PO KONSERVNA PROMISHLENOST 23 Sept 1971 [26 Sept 1970] 44509/71 Heading B8A [Also in Divisions G1 and G4] Tomatoes to be sorted photoelectrically (see Division G1) are fed to the sorting station by a conveyer. Tomatoes are delivered to V-section belt 46 from hopper 43 via a static orienting plate 45 where they obtain a spinning motion and are spaced at substantially equal distances for passage down belt 46 which is oscillated perpendicular to its motion direction to complete orientation. Sorting takes place at 48.
Patent GB-445422-A (GB)
Abstract: 445,422. Motor-vehicle axles; mounting motors. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works Ltd. Motor Car & Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) Oct. 3, 1934, No. 28342. Addition to 445,421. [Classes 79 (iii) and 79 (iv)] In a vehicle having each road wheel driven by a separate motor and mounted on an independent axle 1 swinging about a longitudinal axis of the vehicle each motor 6 is disposed immediately adjacent to the wheel which it drives. Each axle pivot may be situated at 2 at the centre of the vehicle or at 2<1> at the opposite side from the road wheel. The motor 6 drives the road wheel through a shaft 5 and pinion 7 gearing with a gear-wheel on the road wheel, the gearing being outside the road wheel so as to be readily accessible.
Patent GB-1253742-A (GB)
Title: Novel pyridoindole derivatives and a process for the manufacture thereof
IPC: C07D471/04
Filed: 1969-09-10
Abstract: 1,253,742. 2H - Pyrido[4,3-b]indole derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 10 Sept., 1969 [10 Sept., 1968], No. 44587/69. Heading C2C. The invention comprises compounds of formula wherein R 1  is H, Me, PhCO or Ph-alkyl; R 2 , R 3 , R 4  and R 5  are each H, halogen, alkyl, alkoxycarbonyl, CO 2 H, alkoxy, HOCH 2  or CF 3 ; and R 6  is H or alkyl, each alkyl group therein containing 1-6 C atoms; their pharmaceutically acceptable acid addition salts, and hydrates of such salts. These compounds (excepting those containing CO 2 H or HOCH 2 ) are prepared by reacting an N-amino-N-2-(R 6 -substituted-4-pyridyl)ethylaniline with an N-R 1 -4-piperidone; the CO 2 H-compounds (I) are prepared by hydrolysis of the alkoxycarbonyl-compounds (II), and the HOCH 2 -compounds by reduction of I or II. Starting materials.-The preparation of N-2- (4-pyridyl)ethylaniline and its N-nitroso and N- amino derivatives is described. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have analgesic activity.
Patent GB-1192708-A (GB)
Title: A Compound suitable for use as a Retarder in the Vulcanization of Rubber and Vulcanizable Compositions containing it
Inventor: BERTRAND GUY
IPC: C08K5/47
Filed: 1968-09-19
Abstract: 1,192,708. Nitroso substituted diphenylamine. RHONE-POULENC S.A. 19 Sept., 1968 [20 Sept., 1967], No. 44668/68. Heading C2C. [Also in Division C3] The invention relates to N-nitroso-4,4<SP>1</SP>-bis- (2-phenylisopropyl)-diphenylamine. The compound may be prepared by dispersing the 4,4<SP>1</SP>- bis - (2 - phenylisopropyl) - diphenylamine in water and adding sodium nitrite and a strong inorganic acid.
Patent GB-1030168-A (GB)
Title: An electric motor
IPC: H02K3/32
Filed: 1962-11-28
Abstract: 1,030,168. Insulation of electric motors. LICENTIA PATENT-VERWALTUNGSG.m.b.H. Nov. 28, 1962 [Nov. 28, 1961], No. 44971/62. Heading H2A. In an electric motor, e.g. for a refrigeration unit, having a winding accommodated in slots, the insulation of the slots and of the winding end-connections consists of a foil layer and a fleece or fabric layer firmly united together and of a synthetic plastics material. The slots and winding described are those of the laminated stator. The layers may exceed two in number, be united by an adhesive or by fusion, have mutually different softening and melting temperatures, and be of, e.g., polyethylene terephthalate.
Patent GB-1527884-A (GB)
Title: Recording tape deck
IPC: G11B15/26
Filed: 1975-10-30
Abstract: 1527884 Tape cassettes NORTH ATLANTIC INDUSTRIES Inc 30 Oct 1975 [15 Nov 1974] 44976/75 Heading B8M [Also in Division G5] A magnetic tape cassette C has a base formed by a precision metal reference plate C-1 which, when the cassette is in an operative position in a tape deck, engages three rollers (15a), (15b), (15c), Fig. 2A (not shown), which define a positioning reference plane for the cassette in the tapedeck. In use, the cassette is urged against the reference plane by spring-biased rollers (17a), (17b) engaging side flanges of the upper surface C-2 of the cassette, notches C-4 in the cassette sides accommodating latches 21a, 21b which retain the cassette in the operative position in the tape deck. Side flanges of the base plate C-1 engage in guideways (14) of the deck as the cassette is inserted therein, and a spring-biased door C-3 in the cassette is opened during such insertion to expose the magnetic tape T to magnetic head 16. The tape T is driven by a belt extending around the tape reels and around a capstan C-5 provided as part of the cassette and driven by a roller 37 of the tape deck.
Patent GB-1091047-A (GB)
Title: Load-dependent disconnecting device for pressure-medium operated torsionally resilient shaft clutches
IPC: F16D43/286
Filed: 1964-11-04
Abstract: 1,091,047. Friction clutches. LOHMANN & STOLTERFOHT A.G. Nov. 4, 1964 [Nov. 4, 1963], No. 45063/64. Heading F2C. A pressure-fluid engaged friction clutch is in series with a resilient coupling, relative movement between the parts of which on the occurrence of overload or underload disengages the clutch. The clutch comprises cones 1 moved apart to engage the clutch by compressed air in a chamber 10. The cones 1 are fast with a member 2 having cam surfaces 3, 4, and the cones are connected by a resilient coupling to a member 5 in which is mounted a valve 11 controlling the admission of air from a conduit 9 to the chamber 10, a pilot valve assembly 6 also being mounted in the member 5 and having a valve stem 7 co-operating with the cam member 2. In operation under normal load the valve stem 7 is positioned between cam surfaces 3 or 4 according to the direction of rotation. On the occurrence of over- or under-load the valve stem 7 is depressed by a cam surface so that air is admitted to a chamber 28 of the valve 11 to depress it against spring pressure to vent the clutch chamber 10 through passages 12, 13. The valve stem 7 is retained in its depressed condition by balls 25 engaging in a groove 16 in the stem. To re-set the device the supply of compressed air to the inlet passage 9 is terminated, whereupon a spring 22 shifts a ball retaining sleeve 20 downwardly to release the balls 25 from the groove 16 so that the valve stem 7 can be raised to co-operate with the cam member 2 by supplying compressed air to the inlet 9. Air is normally supplied at a pressure of 6 atmospheres; if air is supplied at 3 atmospheres the stem 7 remains out of range of the cam member 2 so that the disengaging device is inoperative, but the pressure is sufficient to engage the clutch so that the clutch may be overloaded for a short time, for example on starting.