baber/WOPTO huggingface dataset:
Patent GB-1001039-A (GB)
Title: Process for the production of cyclopentadienyl thallium compounds
IPC: C07F17/00
Filed: 1962-07-18
Abstract: Cyclopentadienyl thallium and substituted cyclopentadienyl thallium compounds are prepared by reacting a cyclopentadiene or substituted cyclopentadiene with an undissolved thallium salt in the presence of a basic liquid having a pkb up to 5. Suitable thallium salts include the bromide, iodide, thiocyanate and preferably the chloride, TlCl. Specified bases include aqueous inorganic bases for example alkali or alkaline-earth metal hydroxides and ammonia, and strong organic bases for example primary, secondary and tertiary amines.  The base should be chosen according to the Tl+ concentration in the reaction mixture so that the cyclopentadienyl concentration produced thereby is sufficient to obtain values above the solubility product of the organo-thallium compound.
Patent GB-817620-A (GB)
Title: Improvements in or relating to the ammonia-soda process for the manufacture of soda ash
IPC: C01D7/18
Filed: 1957-09-03
Abstract: <PICT:0817620/III/1> Ammonium chloride solution from an ammonia-soda process is passed via line 1 to an ammonia still 2 (as shown), or a plurality of stills in parallel (not shown) where it is contacted in counter-current flow with steam from line 13 whereby carbon dioxide and free ammonia are stripped off.  The stripped solution is passed to a prelimer 7 via line 6 wherein it is mixed with an excess of lime from line 8.  The resulting slurry is returned to still 2 via line 9 wherein the fixed ammonia is distilled off. The evolved carbon dioxide and ammonia leave the still 2 via line 12 while the residual slurry is passed via a line 11, a heat trap 14, and a line 15 to a settler 20, wherein lime and calcium carbonate settle out.  The settled lime and calcium carbonate are passed via line 22 to a prelimer 23 wherein they are mixed with a solution of fixed ammonia, e.g. ammonium chloride or sulphate substantially free from carbon dioxide from line 24.  The resulting slurry is passed via line 25 to a still 26 wherein it is contacted in counter-current flow with steam from line 27.  The ammonia thereby evolved leaves the still 26 via line 28 while the residual solution is passed via line 29 and heat trap 30 to waste. The solution passed to prelimer 23 via line 24 may be a portion of the solution withdrawn from still 2 via line 6 or it may be derived from another ammonia-soda process using sodium chloride or another sodium salt.  Sufficient ammonium salt solution is preferably employed in prelimer 23 for complete reaction with the lime and calcium carbonate from line 22.
Patent GB-866949-A (GB)
Title: Improvements relating to ducting or trunking for air or other gases
Inventor: DUDLEY ARTHUR
IPC: F16L59/14
Filed: 1958-08-30
Abstract: 866,949. Flexible ducting. BAXTER, WOODHOUSE & TAYLOR Ltd. Aug. 28, 1959 [Aug. 30, 1958], No. 27899/58. Class 99(2). Ducting for air or other gases comprises at least one layer of air-impervious material, such as plastic film or metal foil, not sufficiently rigid to maintain a given shape, bonded to one or more layers of a semi-flexible, lowdensity, insulation medium, e.g. fibrous or a foam material which is capable of maintaining a given shape under the intended internal working pressure, and thereby to determine the shape of the air-impervious material, and which is sufficiently resilient to return to that shape if deformed. As shown, layers 2, 3 of glass cloth are bonded to a fibre glass mat or a sheet of polyurethane 1, the three layers being quilted together by stitching 4, and bonded to the layer 2 is a layer 5 of metal foil, e.g. aluminium, or alternatively, a coated layer of woven fabric or a layer of synthetic plastic film. The tubular body formed from these layers is surrounded by a layer 6 of glass wool and a layer 7 of polyvinylchloridecoated textile fabric. In' alternative constructions, the foil or film layer 5 is replaced by a sprayed or brushed-on impervious layer. When metal foil is not used, for the purpose of dissipating static electric charges, one or more continuous metal elements is or are provided in or on the insulating material ; alternatively, there is provided a sprayed or brushed-on metallic layer, or the quilting stitches 4 are of a metallic thread. To facilitate the joining of lengths of ducting, the layers 1, 2, 3 are extended beyond the layer 6 and the layer 7 is folded down over the ends of the layer 6.
Patent GB-769110-A (GB)
Title: Improvements in weighing machine
Inventor: KNOBEL MAX
IPC: G01G5/00
Filed: 1954-09-27
Abstract: 769,110. Fluid-pressure servomotor control systems. PNEUMATIC SCALE CORPORATION, Ltd. Sept. 27, 1954, No. 27901/54. Class 135. [Also in Group XVIII] A weighing machine comprises pneumatic control means having an elongated passage 34 terminating in an orifice 36, a conduit 38 within the elongated passage terminating a distance from the orifice several times the greatest sectional dimension of the conduit, a supply of pressure air at 48 to one of the passages, a connection 44 from the other passage to pressure responsive means, e.g. the weight indicating pressure gauge 46, and a movable weighing element 26 connected to means 30 for controlling the flow of air from the orifice 36. The weighing platform 26 is supported by two leaf springs 20, 22 and spring 28. The pipe 44 may also lead to a piston operating a pen recorder and to a piston operating displaced switch contacts controlling under and over load warning lights. The piston may also operate displaced electric contacts controlling two solenoid operated valves controlling respectively the bulk and dribble flow of material to be weighed. U.S.A. Specification 2,634,080 is referred to.
Patent GB-749269-A (GB)
Title: Improvements in or relating to push graders
IPC: E02F3/76
Filed: 1953-10-12
Abstract: 749,269. Earth-moving apparatus. REID, J. M. Oct. 12. 1954 [Oct. 12, 1953], No. 27992/53. Class 68(1) In a push-grader the cylinder 1. of a double-acting, hydraulically-actuated jack is pivotally connected to one arm 3 of a bell-crank lever 2 and the piston rod 4 is connected to the arm 5 of a bell-crank lever 6. The levers 2, 5 are swingable fixed fulcrums 7. The other arm 2a, 5a of each lever 2, 5 is connected to a link 8 pivotally connected to a blade-carrying member 9 pivoted at 10 on the chassis of the grader. Actuation of the jack thus causes the members 9 to swing either upwardly or downwardly. The jack may have opposed pistons and piston rods.
Patent GB-408531-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03G3/26
Filed: 1933-10-11
Abstract: 408,531. Valve circuits for wireless reception ; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London- (Assignees of Travis, C.; 354, West Allen's Lane, Philadelphia, U.S.A.) Oct. 11, 1933, No. 28073. Convention date, Nov. 8, 1932. [Classes 40 (iii) and 40 (v).] In orde r to avoid the use of a visual tun ing meter &c. in a receiver embodying automatic gain regulation, a double-humped characteristic is given to the coupling between a carrier amplifier and gain control detector. As shown, a superheterodyne receiver comprises a radio-frequency amplifier 2, first detector 4, oscillator 6, intermediate-frequency amplifier 9 and second detector 10, while some of the intermediate-frequency energy is amplified by a valve 11 fed through a condenser 12 from the input of valve 9, and rectified by a diode 19. The anode circuit of the diode 19 includes a potential divider 21, 22, 23 from different tappings of which gain-control potentials are applied to the grids of valves 2, 4 and 9 through resistances 24, 25 and 27 respectively. The intermediatefrequency coupling transformer 16 between the valves 11 and 19 has a double-humped characteristic as shown in Fig. 2, so that more intermediate-frequency energy is passed therethrough if its frequency is displaced either above or below the required value by inaccurate tuning of the oscillator and high-frequency stages, to produce a reduction of amplification in the receiver proper, the maximum amplification for small changes of the tuning dial occurring when the incoming signals are correctly tuned. Alternatively, the double humped characteristic may be produced by a tuned circuit 15, 17, Fig. 4, coupled to the valve 19 through a condenser 15<1> and also to a further tuned circuit 33<1>, 161 or by a network of inductances and capacities 15, 50, 51, 52, Fig. 5, connected as shown as a coupling network between the valves 11 and 19.
Patent GB-956139-A (GB)
Title: Junction transistors
Inventor: LOWE RONALD CHARLES
IPC: H01L21/22
Filed: 1959-08-18
Abstract: 956,139. Transistors. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 11, 1960 [Aug. 18, 1959], No. 28149/59. Heading H1K. A junction transistor is made by diffusing impurities of one conductivity type into the surface of a silicon slice to form emitter and collector layers covered by glass films, masking the collector surface and selected areas of the emitter surface, etching away the exposed part of the emitter, and then removing the mask and diffusing into the silicon impurity of the opposite conducting type. In the example a phosphorus doped N type silicon crystal is first lapped to a uniform thickness of 0.004 inch and lightly etched in acid. Acceptor impurity is then diffused into both its surfaces to form P regions 0.0003 inch thick overlain by glassy layers. An acid resistant mask is applied by a photographic process to leave only the centre of one surface exposed, and the glassy and P regions removed from the exposed part by etching. After removal of the mask the crystal with its donor impervious glassy layers is heated in a donor atmosphere to form a low resistivity layer and overlying glassy layer on the exposed surface. During this process acceptor impurity stored in the glassy layers diffuses into the crystal to extend the P regions to a depth of 0.016 inch. The glass films are next removed in hydrofluoric acid and the surfaces coated first with nickel and then with gold. A mask 15 (Fig. 4) is applied to expose only the inner edge of the P region 7 which is then delineated by etching to the full depth of the region using aqua regia to remove the metal layers and an acid etch to remove the silicon. Finally, after removal of the edges of the crystal by etching through a further mask, electrodes are soldered to the plated surfaces 15 of the emitter, collector, and base zones 7, 8, 9.
Patent GB-278539-A (GB)
Title: Improvements in apparatus for delivering quantities of coal, coke, gravel, sand or other like material as from hoppers, bunkers or silos to trucks or wagons
IPC: B65D90/58
Filed: 1926-11-09
Abstract: 278,539. Gas Light & Coke Co., Leech, W. J. B., and Birks, F. M. Nov. 9, 1926. Shoots.-The outlet shoot of a storage hopper a for delivering coal, coke, gravel, sand, &c. into truck is provided with a pivoted quadrantal gate b<1>, b<2> having a hollow depending portion b<3> arranged so that when in the discharging position, as shown, the edge b<5> extends above the free surface of the material as determined by a rearwardly directed plate e<3> beneath the hopper. The lower wall e<2> of the shoot extends laterally a distance x beyond the opening of the hopper a, so that the weight of the material is supported mainly by the shoot, and the pivoted door b<2> is easily swung into the position shown in broken lines to close the shoot for removal of the truck. The shoot and the door comprise sector-shaped side plates c, b<1> connected by transverse plates e<3>, e<2>, b<2>. The door is moved about its pivot f by a lever g. A number of doors with the levers g in line may be operated by a rope L or other connection from a single hydraulic cylinder or other operating device, and several such series of doors may be connected in parallel for delivery to trucks on parallel tracks.
Patent GB-708708-A (GB)
Title: Improvements in or relating to the recovery of sulfuric acid from spent sulfuric acid
Inventor: FUQUA MACK CASTLEMAN
IPC: C01B17/92
Filed: 1952-11-10
Abstract: Dilute aqueous sulphuric acid contaminated with carbonaceous material is concentrated from 45-50 per cent. to 90-98 per cent. strength by concentrating to an intermediate strength of 65-70 per cent., washing with a non-reactive wash oil to remove the carbonaceous material, and finally concentrating to 90-98 per cent. strength.  The wash oil may be a mixture containing 10-20 per cent. of pine oil and 90-80 per cent. of kerosene, or "oxo" alcohol bottoms, and may be used in an amount of 0.2-5 per cent., preferably 0.5-1 per cent.  The acid of intermediate acid strength may be at a temperature of 50-70 DEG C. before mixing with the wash oil.
Patent GB-778232-A (GB)
Title: Improvements in or relating to heated cylinders, rollers and the like
Inventor: SPOONER WILLIAM WYCLIFFE
IPC: F26B13/18
Filed: 1954-10-01
Abstract: 778,232. Drying cylinders. SPOONER DRYER & ENGINEERING CO., Ltd. Sept. 13, 1955 [Oct. 1, 1954], No. 28282/54. Class 34(1) A roller or cylinder 1, e.g. for textile drying or paper making, is heated by feeding steam into water circulated through it. A pump 8 circulates water from an inlet valve 9 past a steam inlet 10 into a stub shaft 3 which is journalled on the water pipe for rotation of the cylinder. The hot water passes over a shell 15 in the cylinder to a similar stub shaft 3 at the other end to return to the pump 8. A relief valve 13 for the discharge of water and air at the cylinder outlet is connected by a stationary pipe 14 to the top of the cylinder. The steam at higher pressure than that of the water enters through a valve 11 controlled by a thermostat disposed in the water flow and preferably close to the outlet water connection.
Patent GB-502467-A (GB)
Title: Improvements in and relating to arrangements for preventing the loss of collar studs and the like
IPC: A44B3/00
Filed: 1938-09-29
Abstract: 502,467. Stud retainers. LANDGRABER, J. Sept. 29, 1938, No. 28357. Convention date, Sept. 29, 1937. [Class 43] A collar-stud retainer consists of a thin rubber disc a with a relatively long narrow slot b enabling it to be slipped over the head of a stud. ' Preferably, the rubber is reinforced by a fabric insert and is thickened at the edges c.
Patent GB-1046935-A (GB)
Title: Active sonars for detection of submarines
Inventor: HAFNER RAOUL
IPC: G10K15/04
Filed: 1963-07-17
Abstract: 1,046,935. Pyrotechnic devices. WESTLAND AIRCRAFT Ltd. Oct. 16, 1964 [July 17, 1963], No. 28369/63. Heading F3A. Apparatus for creating sound under water to detect submarines and the like comprises a cylindrical casing 1 with hemispherical end closures 2, 3. A housing 4 integral with end 2 is divided into reservoirs 5, 6 for a fuel and an oxidizer, which, through valve mechanism controlled by a timing device within a casing 7, can enter the casing 1. A time-controlled spark generator within a housing 9 is used to ignite the explosive mixture simultaneously at spaced spark gaps 8. The consequent rise in pressure causes vibration of the cylinder wall. By varying the properties of an elastic layer 10 around the casing 1, the oscillations may be damped as required. A relief valve 11 is provided in the end 3. The apparatus is lowered by a cable attached at 12 and weights may be added according to the depth of operation. In Fig. 4 explosive charges are successively fed from a magazine 15 through a duct 14 to a position 13 and there fired to create a succession of shock waves and hence produce vibration of the cylinder 1. So that each shock wave should reach all parts of the cylinder simultaneously, a baffle 16 surrounds the charge at location 13, this baffle being tapered from each end towards the centre and provided with " anti-resonance " holes 17.
Patent GB-821708-A (GB)
Title: Hydraulic shearing machine
IPC: B23D15/14
Filed: 1956-09-17
Abstract: 821,708. Shearing. FERRANTI, A. Sept. 17, 1956 [Sept. 15, 1955; Aug. 22, 1956], No. 28374/56. Class 83 (4). In an hydraulic shear in which a moving blade actuated by a piston-cylinder assembly co-operates with a fixed blade, the machine frame in horizontal section is substantially triangular. The frame is fabricated from plates welded together. The fixed blade A1 which is secured to an anvil 18 is parallel to and projects beyond the ends of the base-line of the triangular section. The moving blade B1 is attached to a carrier 58 having arms 60 extending upwards from the ends of the carrier and joined at the top by a cross-piece 62. The cylinder C containing a piston attached to the centre of the carrier 58 is secured to the frame between the arms 60 which are guided in an aperture 72 in a cap-piece 70 welded to the frame. A plate 64 secured to the carrier 58 has trapezoidal ribs 66 co-operating with similar ribs on a grid plate 44 forming part of the frame. A holddown 78 is operated by hydraulic rams D.
Patent GB-737777-A (GB)
Title: Improvements in the refining of steel in converters
IPC: C21C5/46
Filed: 1953-10-14
Abstract: 737,777. Converters. DEMAG AKT.-GES. Oct. 14, 1953 [Oct. 15, 1952], No. 28400/53. Class 72. Gaseous refining agents are supplied to a converter through a lance fixed to a supporting arm pivotally mounted on a frame and which includes means to bring the lance into operative position above the molten metal. As shown, a lance 2 mounted on a supporting arm 2a is inserted into the mouth of a converter 1. A U-shaped frame 11 carries a trunnion 4 to which the arm 2a is attached by bracket arms 3 and which is rotatable by a motor 10 and gearing. Guide rods 13 and 14 mounted in stationary bearings carry the frame 11 and a plunger 17, operated by power or by hand, connected to the rod 13 produces vertical movement of the arm and the lance. In a modification, Fig. 3 (not shown), the frame is moved vertically by a nut and screw operated by hand, or by a motor, and gearing. The lance may be cooled by the passage of a cooling medium through concentric annular spaces surrounding the tube carrying the reagent.
Patent GB-1345657-A (GB)
Title: Triazolothienodiazepine compounds and pharmaceutical compo sitions containing them
IPC: C07D495/14
Filed: 1972-06-16
Abstract: 1345657 Triazolo [3,4-c] thieno [2,3-e] [1,4] diazepines YOSHITOMO PHARMACEUTICAL INDUSTRIES Ltd 16 June 1972 [18 June 1971 21 June 1971 30 June 1971 8 July 1971 10 July 1971 13 July 1971] 28442/72 Heading C2C Novel compounds I and their acid addition salts in which Ar is optionally substituted phenyl group or a pyridyl group, each of R 1  and R 2  is hydrogen or C 1-4  alkyl or R 1  and R 2  together form a tetramethylene group and R is hydrogen, C 1-4  alkyl or an optionally substituted phenyl group are prepared by reacting a novel compound II with an acid R-COOH or a functional derivative thereof which may be an ortho acid ester, an imino ether, an amidine, an amide, a thioamide, an ester, an acid anhydride, an acid halide or a nitrile. Where the acid derivative is an amidine, an intermediate of Formula IV may be isolated before heating to between 150 and 250 C. to effect ring closure; where the acid derivative is an ester, anhydride, halide or nitrile or with the acid itself an intermediate of Formula V may be isolated before ring closure by heating to 100 to 250 C. without a solvent or in a solvent in the presence of an acid catalyst. Preferred compound is 1-methyl-6-o-chlorophenyl - 8 - ethyl - 4H - s - triazolo [3,4-c] thieno [2,3-e] [1,4] diazepine. Compounds II are prepared by reaction of a novel compound VI in which X is -SH, -SCH 3  or -NH 2  with hydrazine and compounds VI are prepared from compounds VIII by (a) reaction with ammonia in the presence of a Lewis acid to form a compound VI in which X is NH 2  or (b) reaction with P 2 S 5  to form a compound VI in which X is SH which may be reacted further with an alkali metalating agent and with a methylating agent to form a compound VIII in which X is -SCH 3 . 2-Acetylhydrazino - 5 - o - chlorophenyl - 7 - ethyl - 1,2-dihydro - 3H - thieno [2,3-e] [1,4] diazepine, an intermediate of Formula V, may be prepared from the corresponding compound VI in which X is -SH by reaction with acetohydrazide. Compounds (I) are active in narcosis potentiation and in suppression of fighting behaviour and exhibit anti-convulsant effects. They form with a carrier or adjuvant a pharmaceutical composition which may be used as a tranquillizer and administered orally.
Patent GB-284458-A (GB)
Abstract: 284,458. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 19, 1927. Unsaturated aldehydes are prepared by condensing an aldehyde having a CH2 group in the 2- position to the oxo group with an aldehyde not having the same, in presence of an alkali and an alcohol and a minimum amount of water. The hydrogens of the CH2 group in the first aldehyde may be assumed to combine with the oxygen of the CHO group in the second aldehyde and eliminated as water. The products axe useful as perfumes. Examples are given of the preparation of 1-oxo-2-methyl-3-phenyl-propen-2 (a-methylcinnamic acid) from benzaldehyde and 1-oxopropan (propionio aldehyde), 1-oxo-2-ethyl-3- phenyl-propen-2 from benzaldehyde and 1-oxobutan, 1-oxo-2-isopropyl-3-phenyl-propen-2 from benzaldehyde and 1-oxo-3-methyl-butan, 1-oxo-2- ethyl-3-p-methoxyphenyl-propen-2 from 4-methoxybenzaldehyde and 1-oxo-butan, 1-oxo-2-n-amyl- 3-p-methoxyphenyl-propen-2 from 4-methoxybenzaldehyde and 1-oxo-heptan, 1-oxo-2-amyl-4-ethylocten-2 from 1-oxo-2-ethyl-hexan and 1-oxoheptan, 1-oxo-2-amyl-4-ethyl-octadien-2 : 4 from 1-oxo-2-ethyl-hexen-2 and 1-oxo-heptan, and 1- oxo-2-ethyl-5-phenyl-pentadien-2 :4- from I-oxo-3- phenyl-propen-2 and 1-oxo-butan. Similarly, 1- oxo-2-methyl-5-phenyl-pentadien-2 :4 may be obtained from 1-oxo-3-phenyl-propen-2 and 1-oxopropan, 1-oxo-2-amyl-5-phenyl-pentadien-2 : 4 from 1-oxo-3-phenyl-propen-2 and 1-oxo-heptan, 1-oxo-2 : 4 :-dimethyl-5- phenyl - pentadien-2 : 4 from 1-oxo-2-methyl-3-phenyl-propen-2 and 1-oxopropan, and 1-oxo-2-ethyl-4-methyl-5-phenyl-pentadien-2: 4 from 1-oxo-2-methyl-3-phenyl-propen- 2- and 1-oxo-butan. In each case ethyl alcohol is employed, but other alcohols such as methyl or butyl alcohol may be used. Other aldehydes which may be condensed are 1-oxo-buten-2, 1-oxo- 2-methyl-propan, 1-oxo-3-oxy-butan, 1-oxo-2- phenyl-propan. 1-oxo-3-p-tolyl-propen-2. 1-oxo-2- methyl-3-phenyl-propan, 1-oxo-nonan. 1-oxo-undecan, tolyl aldehyde, 4-isopropylbenzaldehyde, piperonal, cyclocitral and furfurol. According to the Provisional Specification, an organic solvent or mixtures thereof may replace the alcohol.