baber/WOPTO huggingface dataset:
Patent GB-789555-A (GB)
Title: Improvements in or relating to electro-static treating systems
IPC: B03C3/66
Filed: 1955-12-16
Abstract: 789,555. Supply systems for electrostatic precipitators. RESEARCH CORPORATION. Dec. 16, 1955 [Jan. 10, 1955], No. 36157/55. Class 38 (4). An electrostatic treating system comprises two groups of treating sections energized by half-wave rectified high-tension voltage pulses from a common transformer. As shown, one group comprises a number of electrostatic precipitator sections 1a, 1a<SP>1</SP>, 1a<SP>11</SP>, the respective discharge electrodes of which are connected to a secondary terminal 9a of a high-tension transformer 4 through individual rectifiers 5a, 5a<SP>1</SP>, 5a<SP>11</SP>. The collector electrodes of this group of sections are earthed. A second group comprises precipitator sections 1b, 1b<SP>1</SP>, the discharge electrodes of which are connected to the other secondary terminal 9b of the transformer through individual rectifiers 5b, 5b<SP>1</SP>, the collector electrodes of the second group being likewise earthed. The terminals 9a, 9b are connected to earth through oppositely-poled rectifiers 6a, 6b. Alternate half-waves of current thus pass through the first group, whilst intermediate half-waves in the opposite direction pass through the second group. Although arcing in one section will temporarily influence the voltage of all sections connected to one transformer terminal, there is no leakage of energy from the other group to the one in which arcing occurs. A voltage regulator 7 may be provided in the primary circuit of the transformer 4, and a ballast resistor 8 limits current in the event of arcing. In a modification, the rectifiers in series with the discharge electrodes of the various sections are of the thermionic diode valve type having their cathodes heated from low-voltage secondary windings on the transformer, Fig. 2 (not shown). In a further arrangement, the rectifier for each precipitator section is in the form of a thermionic valve having a control grid. Automatic biasing means is provided for each grid for applying increased negative bias when there is excessive current in the discharge circuit. Such means may comprise a resistor in the cathode circuit of the valve and having its negative side connected to the control grid. In another embodiment, the automatic biasing means comprises a transformer with its primary winding either in the anode or cathode circuit of the valve, and its secondary winding connected to the control grid, Fig. 3 (not shown).
Patent GB-433253-A (GB)
Title: Improvements in or relating to the production of magnesium hydroxide
IPC: C01F5/22
Filed: 1934-12-17
Abstract: Readily filterable magnesium hydroxide is obtained by suspending calcined and slaked lime or dolomite in a medium containing in solution considerable amounts of nitrates of the alkalies or alkaline-earths, alkali chlorates, or preferably calcium chloride, and treating the suspension with magnesium chloride liquor at an elevated temperature.  The reaction medium may contain also small amounts of boric acid or borates.  In a modification, the preferably strongly calcined lime or dolomite is slaked with the aid of an aqueous solution of chlorides or nitrates of the alkalies or alkaline earths, caustic alkalies, boric acid, borates, or potassium thiocyanate, which cause hydration of the lime in a form particularly suitable for the reaction with magnesium chloride.  Slaking may be effected with an excess of solution sufficient to form the suspension to be used for the reaction, and after separation of magnesium hydroxide, the reaction solution containing calcium chloride may be used for the slaking and/or suspension of a fresh batch of lime or dolomite. Preferably an excess of magnesium chloride is used for the reaction, and coarse particles of lime remaining with the precipitated magnesium hydroxide are either removed by sedimentation or sifting, or comminuted by mechanical means during the reaction.
Patent GB-807661-A (GB)
Title: Improvements in and relating to the pyrolysis of ethane
IPC: C07C5/327
Filed: 1955-12-16
Abstract: <PICT:0807661/IV (b)/1> A process for pyrolizing ethane comprises injecting ethane into a fast-flowing constricted stream of another gas at a very high temperature, gradually expanding the cross-sectional area of the stream downstream of the point of injection of the gas to be pyrolysed and rapidly cooling the gas mixture within a fraction of a second after injection of the ethane. In a preferred process, ethylene is produced by injecting ethane into a fast-flowing constricted stream of superheated steam at 2000-3000 DEG  F. so as to form a mixture with a temperature of 1600-2400 DEG F., gradually expanding the cross-sectional area of the stream downstream and rapidly cooling to below 1000 DEG  F. within 0.1 second.  The preferred apparatus is a vapour phase reaction chamber 11 in the form of a venturi tube with an outlet 11a and an inlet 11b and quenching means 12 supplied by water through a line 17a, the whole then passing to a heat exchanger 13 in which substantially all the steam is condensed and separated out from the gases in separator 18.  Fresh water from a container 19 is compressed in a compressor 15 and superheated in a vessel 16.
Patent GB-1394228-A (GB)
Title: Transmission couplings
IPC: F16D3/205
Filed: 1972-08-03
Abstract: 1394228 Universal joints GLAENZER SPICER 3 Aug 1972 [25 Jan 1972] 36300/72 Heading F2U A homokinetic joint comprises three axles (2) Fig. 1 (not shown) extending radially from a shaft (3) and each mounting a roller 1 of part circular cross-section, engaging a corresponding straight roller way 21 in a sleeve 4, 22, 23, when sectioned in the plane containing the axles (2), the rectangles circumscribing the rollers 1, intersect as at 7. The roller ways may be formed in the shell either by forming in the hub (33) of a gear (34) Figs. 13, 14 (not shown) or by deforming a cylindrical sheet metal wall 4, which may be spot welded within a further cylindrical wall (17) Fig. 9 (not shown), or by inserts 20 in a sheet metal tube 22. The sheet metal wall 4, 23 may be encased in a plastics part (35) Fig. 15 (not shown) or have an elastomeric layer 25 mounting it in a further similarly shaped sheet metal part. To connect the, or the outer sheet metal part to a shaft, it may have an outward flange, or may have a blind end 28 welded to a stub shaft 29.
Patent GB-869928-A (GB)
Title: Improvements in or relating to device employing square loop hysteresis materials
Inventor: CHAIMOWICZ ADAM
IPC: G11C11/08
Filed: 1956-11-28
Abstract: 869,928. Magnetic record heads; electric selective - signalling apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Nov. 25, 1957 [Nov. 28, 1956], No. 36377/57. Classes 40 (1) and 40 (2). [Also in Groups XIX, XXXV and XXXIX] A magnetic core device comprises two annular zones of material having a square hysteresis loop, the two zones being both linked by an input winding and an output winding. As shown in Fig. 1, the two zones are separate rings 1, 2 of different diameter provided with separate input and reset windings 3, 5 and an output winding 4, the intensity and/or duration of the input signal determining whether neither, one, or both the cores are switched and the output winding, which is responsive to a reset pulse, being connected to a pulse amplitude discriminating device. In alternative arrangements: (a) different materials may be used for each ring, (b) several rings may be used to give more than three states. As shown in Fig. 3, a single block of material provides two zones and additional output windings such as 12, 13 passing through apertures at different distances from the centre respond in accordance with the zones switched. The core materials may be ferrite or metallic tape or a film of alloy on glass whereupon the windings may be printed. A half adder is constituted by the Fig. 3 arrangement modified so that the winding 12 links the hole 10 and the centre hole and the windings 12 and 13 are connected in series opposition to an output device. With one unit of current from an input device 7 switching the inner half of the core, and two units switching the whole core, a " sum " output is attained in the series connection of windings 12 and 13 on a single " one " input, and a " carry " output is attained by the output device 8 on an input of two ones, the device 8 being a further magnetic core. The result could be attained with separate cores as in Fig. 1, the input winding could be replaced by two windings each supplied by one unit of current, and the input and reset functions could be performed by a single winding. An amplitude discriminator comprises a core with a number of holes, say 10, at different radial distances from the centre, each annular section being linked by winding. Upon resetting, the outermost winding responding gives an indication of the amplitude of the input signal. The arrangement may act as an amplifying and delay device, the characteristic being shown in Fig. 4, and delay arising from the time interval between setting and resetting. A magnetic recording head shown in Fig. 5 is provided with a selector winding 20 which is pulsed to provide remanence in one sense in the inner annular section and in the other sense beyond the hole 17. A read-write winding links the hole 17 and is connected through transformers to an amplifier 19.
Patent GB-361638-A (GB)
Title: Carburettors for internal-combustion engines
IPC: F02M19/08
Filed: 1930-12-04
Abstract: 361,638. Spray carburetters. DODSON, E., 66, Lewin Road, Streatham, London. Dec. 4, 1930, No. 36586. [Class 7 (iii).] In a carburetter having a transversely projecting fuel tube 3 the latter is provided with a streamline fairing 4, Fig. 1, to obviate the formation of eddies in the air or mixture stream passing through the choke tube. Alternatively a fin 4, Fig. 3, may divide the choke tube in the region of the fuel tube, a portion of this fin in the rear of the fuel tube being cut away as shown ; the fin may. also be extended to the entrance of the air intake.
Patent GB-1063019-A (GB)
Title: Indole derivatives
Inventor: CORT GERARDUS JOHANNES BERTRAM
IPC: C07D401/06
Filed: 1964-09-07
Abstract: New piperidinoalkylindoles of general formula <FORM:1063019/C2/1> wherein R1 represents a hydrogen or halogen atom, R2 represents a hydrogen atom or a lower alkyl group or an aryl group which may be substituted by a halogen atom or methylene dioxy radical and n represents 1 or 2, and the non-toxic acid addition salts thereof, are prepared by reduction of the carbonyl group or groups in a compound of general formula <FORM:1063019/C2/2> wherein X represents a -CO- or -CH2- group and the other symbols are as defined above, by methods known per se for the reduction of a -CO- group to a -CH2- group, such as by use of lithium aluminium hydride, and if desired forming the required acid addition salts.  N - [2 - indolyl - methyl] - 3 - (p - chlorophenyl and methyl) glutaric amide acids are prepared by reaction of 2-aminoethyl-indoles with 3-(p-chlorophenyl and methyl) glutaric acid anhydrides.  N - [2 - indolyl - methyl] - 3 - (p-chlorophenyl and methyl) glutaric imides are prepared by refluxing the previous amide acids with acetic anhydride.  l - [2 - (2 - Indolyl)ethyl] - 4 - p - chlorophenyl-piperid-2-one is prepared by refluxing isotryptamine, d  - bromo - b  - (4 - chlorophenyl)ethyl valerate, potassium carbonate, and a crystal of potassium iodide in xylene.  Pharmaceutical compositions having analgesic and muscle relaxant activity and which can be administered orally in the form of tablets, pills, capsules, suspensions, emulsions, syrups and elixirs, contain a compound of the first general formula above or an acid addition salt thereof as the active ingredient.
Patent GB-447432-A (GB)
Title: Improvements in the construction of floors
IPC: E04B5/44
Filed: 1934-12-21
Abstract: 447,432. Floors; blocks; casting beams in situ. GRAWER, E., and STROMEYER, L., Dautheweg, Leipzic, Germany. Dec. 21, 1934, No. 36707. [Classes 20 (ii), 20 (iv), and 87 (i)] A method of constructing floors from pre - formed blocks 1 consists in suspending the blocks in juxtaposition from temporary supports by means of hooked ledges 2 provided on the top surfaces of the blocks, and uniting such blocks by mortar and reinforcements introduced into the spaces between the blocks, the supports being removed after setting of the mortar. Each block 1 comprises, as shown in Fig. 3, the hooked ledge 2, projecting lips 4<1> at the base, and horizontal grooves 3. The supports may be in the form of angle irons 9 engaging the hooked ledges 2 of the blocks, and the lips 4<1> of adjacent blocks are arranged in contact to provide spaces 4 for the reinforcements 5 and mortar. The bars 9, instead of being carried by the walls, may be supported on girders 13, as shown in Figs. 7 and 8, being formed with undercut notches 10 for engaging the flanges of the girders. The ends of adjacent bars 9, in this case, may be arranged to overlap. The blocks shown in Fig. 8 are provided with a lip 4<1> at one side only. If desired, the floor may be provided with a cementitious layer over the blocks 1, and in this case the blocks may be supported from the supports by iron hooks which become embedded in the cementitious layer and are subsequently cut off flush with the floor surface. A floor beam may be constructed below the floor, as shown in Fig. 9, by means of relatively adjustable mould sections 16, 16<1> which are suspended from the girders 13 by means of cross-bars 17 and bolts 18.
Patent GB-302288-A (GB)
IPC: F02M1/00
Filed: 1928-12-13
Abstract: 302,288. Deutsche Zndustrie-Werke Akt.-Ges. Dec. 13, 1927, [Convention date]. Spray carburettors. -Fig. 2 is a plan of a cylinder head in in which two carburettors e each having its own induction pipe are supplied by a common float - chamber f. Sliding throttle valves g, Fig. 4, of the carburettors, are arranged to be opened in succession, by Bowden wires k, which are moved together and act through springs h, n the strength of which is intermediate that of springs i, m loading the throttle valves.
Patent GB-1161960-A (GB)
Title: Improvements in methods and apparatus for Injection-Blow Moulding
IPC: B29C49/06
Filed: 1968-08-01
Abstract: 1,161,960. Injection-blow moulding. APL CORP. 1 Aug., 1968 [6 Oct., 1967], No. 36822/68. Heading B5A. In an injection-blow moulding process, the bottom rim of an article is thickened by forcing the bottom wall of the article inwardly after the blowing stage. As illustrated in Fig. 2, a parison formed on core 12 by injection is expanded into blow mould halves 40, 42 by air supplied through duct 22. The mould bottom section 46 comprises base 50 with a convex top 52 and stop-plate 106. A bolt 76 having an enlarged end 104 passes from section 46 through a plate 82, section 46 being biased to the right by spring 96 so that plates 82, 106 contact. Plate 82 is fixed to mould section 40, bottom section 46 being held thereby. After blowing, rod 70 is operated to cam wheel 72 and block 74, which holds it, leftward (Fig. 3, not shown), against spring 96 until plate 106 contacts the undersides of mould sections 40, 42 and so that bottom section is advanced to force the bottom of the article inwardly and thicken rim 30.
Patent GB-979363-A (GB)
Title: Improvements relating to electrical capacitors
IPC: H01G4/015
Filed: 1963-09-19
Abstract: 979,363. Laminates. SIEMENS & HALSKE A.G. Sept. 19, 1963 [Sept. 21, 1962], No. 36871/63. Heading B5N. [Also in Division H1] In a capacitor wherein the plates and dielectric are formed by superimposed triple layer foils each including two layers of dielectric material (e.g. 1 and 3) sandwiching a metal layer (2), the triple layer foils may be prepared by applying for example acetyl cellulose as the first dielectric layer to a paper carrier strip, vapour depositing thereon an aluminium layer and then applying the second dielectric layer of acetyl cellulose or polystyrol as a varnish, and peeling the whole from the carrier. The triple layer foils, 1, 2, 3 and 4, 5, 6, are suitably wound together in a roll, on to the ends of which the metal contact layers 7 and 8 are sprayed.
Patent GB-904381-A (GB)
Title: Rigging system for derricks on ships
IPC: B63B27/04
Filed: 1960-10-27
Abstract: 904,381. Ships' derricks. WARTSILAYHTYMA OY - WARTSILA - KONCERNEN A.B. Oct. 27,1960 [Oct. 27,1959], No. 36929/60. Class 78 (4). A device 12 is prevented from slewing by a guy 5, extending between the derrick tip and a point on the perpendicular to the plane in which the device luffs through the pivot 14 of the derrick, and a second guy 6, 7 extending from the top of the derrick to points A, B which are such that the derrick can be luffed without disconnecting or adjusting either guy. As described, the guy 6, 7 passes through a block 25 attached to the derrick. Alternatively the two ends of the guy may be secured to the derrick tip whilst the guy passes in a loop through blocks at A and B. As a modification of the latter embodiment the guy may pass round a winch between the two blocks so that one part of the guy is wound in as the other part is unwound. In this embodiment a separate luffing winch is unnecessary. A formula is given for calculating the position of the points A and B.
Patent GB-411948-A (GB)
Title: Improvements in, or relating to, nut forging machines
IPC: B21K1/64
Filed: 1932-12-31
Abstract: 411,948. Forging nuts. ETCHELLS & SON, Ltd., D., and ETCHELLS, D. R., Bull Piece Works, Darlaston, Staffordshire. Dec. 31, 1932, No. 37023. [Class 83 (iv).] Dies.-In a nut forging machine in which a heated metal bar is fed with its forward end adjacent a stationary die and against a stop constituted by an extension of the die, the interior of the die comprises complete faces for forming all the faces of the nut in complete form except those presented to the front, these latter faces being produced either wholly by the indenting tools or two by the indenting tools and a third by the shearing off of the nut in the die. An extension a of the die A is shaped to correspond to four sides of a hexagon which is completed by indenting tools G when they enter the heated bar H and compress its end into the extension a. The edges g<1> of the tools G slightly overlap the hexagonal aperture in the die A into which the shaped end of the bar is pushed as it is severed from the stock by the usual tool B and punch C, Fig. 6, the blank engaging a snap tool D and punch E, the latter of which then moves forward to compel the blank to fill the die completely. Further movement of the punch E cuts out the burr, the punch C being simultaneously retracted. Finally, the punch E and snap tool D which is adapted to make a longer travel than usual, move together to eject the formed blank clear of the extension a.
Patent GB-985159-A (GB)
Title: Control system for lift truck attachment
Inventor: COMFORT SAMUEL THOMAS
IPC: B66F9/18
Filed: 1963-09-20
Abstract: 985,159. Lift trucks. ALLIS-CHALMERS MANUFACTURING CO. Sept. 20, 1963, No. 37070/63. Drawings to Specification. Heading B8H. A control system for a rotating, side-shifting clamp attachment, mounted on the lifting carriage of a lift truck and comprising a pair of clamp arms actuated by a pair of doubleacting hydraulic rams and mounted on a frame which is rotatable by a double-acting hydraulic motor, includes solenoid valves connected in an electric control circuit including three pushbutton switches -by means of which appropriate valves are actuated to set up an hydraulic circuit for clamping, side-shifting or rotating the clamp arms. Having selected one of the hydraulic circuits by momentarily pressing the corresponding push-button, after which the circuit is maintained activated by a holding circuit, the operator then controls the direction of movement of the clamp arms by a hand lever on a control valve mounted on the truck body and connected to an hydraulic pump and reservoir and, by a pair of hoses, to the hydraulic motors on the lifting carriage. Signal lights are included in each of the holding circuits to indiacte which circuit is activated.
Patent GB-366651-A (GB)
Title: Improvements in means for marking road surfaces
IPC: E01F9/06
Filed: 1930-12-09
Abstract: 366,651. Blocks for marking road surfaces. HAYNES, H. J., 4A, Northleigh, London Road, Portsmouth. Dec. 9, 1930, No. 37075. [Class 87 (i).] A facing of pure white rubber A is united by a vulcanite layer B with a malleable iron base D to form a block shaped as described in Specification 355,894. The facing layers are further interlocked with the iron base by undercut grooves and small corrugations C.
Patent GB-1362315-A (GB)
Title: Method and apparatus for cleaning in a paper machine a press roll  furnished with a resilient covering
IPC: D21G3/00
Filed: 1972-08-09
Abstract: 1362315 Cleaning of press rollers VALMET OY 9 Aug 1972 37139/72 Heading F4G A press roll 2 in the enclosed press section of a paper making machine has a pile or resilient rubber coating from which fibres or paper web are removed by means of a pick-up roll 6 having a smooth hard surface, the roll 6 being cleaned by scraping by a doctor 7. Water is sprayed on to the pick-up roll 6 at 9 to assist cleaning of it, and at 8 to promote transfer of material from the press roll 2 to the pick-up roll 6. The paper web 5 arrives at a roller 1 engaging a felt 11 which is separated from the paper web 5 by the roller 1. The paper web passes via rollers 3 and 4 to a multiple cylinder dryer (not shown).
Patent GB-1282584-A (GB)
Title: Process for preparing coffee
IPC: A23F5/48
Filed: 1969-07-23
Abstract: 1282584 Freeze-drying coffee GENERAL FOODS CORP 23 July 1969 37147/69 Heading A2B [Also in Division F4] A process of preparing a freeze-dried coffee having a dark colour comprises percolating roasted and ground coffee to obtain an extract, cooling the extract to below its entectic point and freeze-drying the frozen extract in a freeze-dryer having a condenser, to 1-2.5% by wt. moisture under a pressure of less than 500 microns of mercury while maintaining the temperature of the coffee below 120‹F and the condenser below -30‹F and while under conditions which prevent melt-back. The process may comprise the removal of oil (by pressing or solvent extraction), volatile aromatics (by distilling) and tars and waxes (by cooling) from the extract and the freeze-concentration of the extract prior to freeze-drying. The oil and aromatics may be subsequently returned to the extract. The freeze-concentration may be carried out in stages and the formed ice may be melted, concentrated and returned to the extract. The extract may be ground prior to or after freeze-drying. The extract may be frozen by passing it on a belt through brine tanks, the temperature of which reduces in the direction of belt travel. The frozen extract may be freeze-dried at 200-500 microns of mercury at a condenser temperature of below -30‹F and then at a pressure below 200 microns of mercury at a condenser temperature of below -55‹F.
Patent GB-885610-A (GB)
Title: Improvements in steroids and the preparation thereof
IPC: C07J75/00
Filed: 1959-11-04
Abstract: The invention comprises cyclopentanophenanthrene compounds of the general formula <FORM:0885610/IV (b)/1> wherein P represents hydrogen or a lower alkyl, monocyclic aromatic, monocyclic aromatic lower alkyl, monocyclic heterocyclic or monocyclic heterocyclic lower alkyl radical and Q represents a monocyclic aromatic, monocyclic aromatic lower alkyl, monocyclic heterocyclic or monocyclic heterocyclic lower alkyl, or wherein P and Q together represent a heterocyclic radical (lower alkyl contains from 1 to 7 carbon atoms), and the preparation thereof by reacting 16a ,17a -dihydroxyprogesterone with an aldehyde or ketone of the formula <FORM:0885610/IV (b)/2> wherein P and Q have the above significance.  The Specification includes a long list of suitable aldehyde and ketone reactants. Detailed examples are given.