baber/WOPTO huggingface dataset:
Patent GB-1484106-A (GB)
Title: Dry cooling towers
IPC: F28B1/06
Filed: 1975-10-06
Abstract: 1484106 Cooling towers HAMON SOBELCO SA 6 Oct 1975 [27 Nov 1974] 40766/75 Heading F4S A dry cooling tower operating by natural draught which may be assisted by fans, comprises vertical banks 14 of tubes set back within the tower from the cooling air inlet or inlets 12 at the foot of the tower shell 11, and horizontal or slightly inclined banks 19 of tubes mounted above the inlet(s) 12 each being supported at one end on the vertical tube banks 14, and at the other end either on posts 18 or on a lintel 41 of the tower shell. Any spaces such as 25 between adjacent tube banks 19, 42 between the tube banks 19 and the shell 11, and 45 (Fig. 2) at the ends of the tube banks, are closed so that all the cooling air is directed over the tubes. Air flow is horizontally across the tube banks 14 and vertically across the tube banks 19 (Fig. 1). When fans are utilized, they may be mounted in a series of circular air-inlet openings near the foot of the tower shell. The individual tube banks comprise two groups (A, B, Fig. 2) of tubes and the tubes are disposed in a V-formation with the tubes extending between headers such as L, L<SP>1</SP> and M, M<SP>1</SP>, Fig. 5. The tubes may be of plastics or of metal and may be smooth or finned. The tube banks may be interconnected in any suitable series or parallel arrangement. In the form shown in Fig. 5 water to be cooled or steam to be condensed flows in the tube banks which are connected in series between an inlet duct 27 and an outlet duct 28. A pipe-line 38 serves to remove gas from the tubes when they are being filled with liquid and for admitting a gas such as dried air or nitrogen when the tube banks are being emptied. Radially extending wind baffles 39 are provided in the tower shell.
Patent GB-1056443-A (GB)
Title: Control circuit for a direct-current drive
IPC: H02P3/12
Filed: 1963-10-16
Abstract: 1,056,443. Control of D.C. motors. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Oct. 16, 1963 [Oct. 17, 1962], No. 40834/63. Heading H2J. [Also in Division G3] A D.C. motor 2 is supplied from three-phase network 1 through rectifier 3 and a pulsing circuit comprising controllable semiconductor 4 and freewheeling diode 5. A control device 6 for the semiconductor 4 receives signals representing respectively the motor current, the voltage across buffer capacitor 8, and a reference voltage. For braking, the motor is connected across resistor 10 which is in parallel with controllable semi-conductor 11 and in series with inductance 12. A control device 13 for the semi-conductor 11 receives signals representing respectively actual and desired values of the braking- current. Field winding 15 is reversed by electronic switches. The function of the changeover switch 9 may be carried out by electronic switches.
Patent GB-1478614-A (GB)
Title: Liquid fuel pumping apparatus for an internal combustion engine
IPC: F02M41/14
Filed: 1973-08-30
Abstract: 1478614 Fluid-pressure servo-motor systems CAV Ltd Z2 Aug 1974 [30 Aug 1973] 40871/73 Heading G3P [Also in Division F1] In a rotary distributer fuel injection pump having a cam (17) movable to alter the injection timing in response to the pressure established in a by-pass 32 by the position of a throttle member 30 controlling the quantity of fuel supplied to the pumping chamber, the throttle member 30 has a first groove 31 connected to a feed pump and a second groove 33 connected to drain, the grooves 31, 33 being arranged selectively to communicate with the by-pass 32 through respective restricted passages 53, 54 before direct communication is established. The restricted passages are in the form of triangular recesses, each recess being in communication with its respective groove or with one side of the entrance to the by-pass 32. In order to facilitate production the entrance to the by-pass and its associated recesses may be formed in a sleeve 40.
Patent GB-1127559-A (GB)
Title: Steering column assemblies for use in motor vehicles
IPC: B65B7/24
Filed: 1967-09-07
Abstract: 1,127,559. Collapsible steering column assemblies. GENERAL MOTORS CORP. 7 Sept., 1967 [28 Sept., 1966], No. 40940/67. Heading B7H. A steering column assembly for use in a motor vehicle comprises a telescopically collapsible steering shaft 22, a support bracket 44 secured, as by welding 46, to a jacket tube 20 of the shaft 22, a mounting member 58 securable to a support structure 34 of the vehicle and a connector 66 which normally connects the support bracket 44 to the mounting member 58, but is arranged to yield under impact conditions of the vehicle to allow the shaft 22 and bracket 44 to move relative to the mounting member 58. As shown in Figs. 2, 4, there are three mounting members 58, each with two pairs of flanges 62, 64 engaging and slidable in rearward opening slots (52), (54), (56) (Fig. 3, not shown) of the bracket 44 which permit free forward but limited rearward movement of the steering column upper part relative to the support structure 34. There are twelve connectors 66 which have shearable reduced neck portions 68 and are made of plastics injection moulded in situ in apertures in the bracket 44 and flanges 64. The mounting members 58 are secured to flanges 38 and 40 of the structure 34 by nuts 70 on hanger bolts 42.
Patent GB-1469197-A (GB)
Title: Preparation of 1-aminoalkyl triazolobenzodiazepines
IPC: C07D487/04
Filed: 1975-10-08
Abstract: 1469197 Preparation of 1 - aminoalkyltriazolobenzodiazepines UPJOHN CO 8 Oct 1975 41145/75 Heading C2C  The invention comprises a process for preparing compounds of Formula VIII wherein R is H, CH 3  or C 2 H 5 ; each of R<SP>1</SP> and R<SP>11</SP> is H or C 1-3  alkyl provided that at least one of R<SP>1</SP> and R<SP>11</SP> is C 1-7  alkyl; R 1  is H or CH 3  and each of R 2 , R 3 , R 4  and R 5  is H, C 1-3  alkyl, halogen, NO 2 , CF 3 , C 1-3  alkoxy or C 1-3  alkyl thio which comprises treating a compound of Formula V with a #-phthalimidocarboxylic acid of formula and a dehydrating agent and warming the resulting product in an organic solvent to obtain a compound of Formula VI heating the compound VI with hydrazine in ethanol to obtain a compound of Formula VII and treating said compound VII with a carboxylic acid aldehyde in the presence of a condensing agent (e.g. sodium cyanoborohydride) to obtain the compound of Formula VIII which is optionally reduced with diborase to give a compound of Formula IX Pharmaceutical compositions having sedative, tranquillizing, muscle relaxant and antidepressant activity for oral, rectal and parenteral application comprise a compound of general Formula VIII or IX or a pharmaceutically acceptable acid addition salt thereof together with a pharmaceutically acceptable diluent or carrier.
Patent GB-1435773-A (GB)
Title: Refrigeration process and plant having an incorporated cascade  circuit and a precooling circuit
IPC: F25D13/00
Filed: 1973-08-31
Abstract: 1435773 Liquefaction processes H KRIEGER 31 Aug 1973 [1 Sept 1972] 41169/73 Heading F4P In a process for liquefying a stream 30 of natural gas, the apparatus for producing cold comprises a cascade circuit b and a precooling circuit a, coolant in the precooling circuit a being compressed by compressor 50 and cooled by water cooler 51 and being passed on to path 11 of a heat exchanger 1 where it is in heat exchange with path 12 of the exchanger, path 12 being fed with completely evaporated and expanded coolant produced by fractional condensations at 34, 36 and subsequent expansion and heating, superheated vapour being supplied from compressor 32 and water cooler 33 of the cascade circuit a to path 15 of a heat exchanger 2 prior to the fractional condensation, path 15 being in heat exchange with coolant in the precooling circuit a which, after passing through path 11 of exchanger 1, is expanded by throttle 56 and then fed to path 13 of exchanger 2. In precooling circuit a, compression and cooling of the coolant at 50, 51 is followed by feeding of the coolant to a phase separator 52, the liquid being pumped by pump P and then cooled by cooler 54, whilst the vapour is again compressed at 55 before passing to water cooler 54. From cooler 54 the coolant is drawn off substantially as liquid and after passing through path 11 is supercooled. It is then drawn off from throttle 56 as saturated vapour and is totally evaporated in path 13 of exchanger 2. In cascade circuit b, superheated vapour, produced by compression and cooling at 32, 33, is partly condensed in path 15 of exchanger 2 and passed to phase separator 34, liquid being drawn off through channel 19 of exchanger 3 whereby it is supercooled, the coolant being then expanded in throttle 35, partly evaporated in path 18 and totally evaporated and superheated in path 14. Vapour from 34 is partly condensed in path 20, fed to separator 36, and the vapour and liquid drawn off recombined, after the liquid is cooled in path 23 and expanded at throttle 37 and the vapour condensed in paths 24, 27 and expanded at throttle 38, so that the combined flow passes through paths 22, 17 to be completely evaporated before entering exchanger 1.
Patent GB-988868-A (GB)
Title: Alkaline dry cell
IPC: H01M4/02
Filed: 1961-11-20
Abstract: 988,868. Batteries. K. ANDO. Nov. 20, 1961 [Nov. 28, 1960; May 8, 1961; June 7, 1961 (2)], No. 41428/61. Heading H1B. An alkaline dry cell has an electrolyte 3 of caustic alkali containing an alkali metal zincate and comprises an anode compound A, which is an uncompressed mixture of zinc powder 2 and electrolyte 3, a separating diaphragm 4, and a cathode depolarizer 5, of a mixture of carbon with mercuric oxide and/or manganese dioxide, which is mixed with electrolyte 3 to provide the cathode compound B. The anode 6a is a bar of iron, nickel-plated iron or nickel, the current collector 7 is a wire net of brass, copper or copper alloy, the container 1 is of porous insulating material and the lid 6 is of iron. The particles of zinc powder 2 are coated with a colloidal substance such as carboxymethyl cellulose, and the zinc powder may be amalgamated. The diaphragm 4 is of anti-alkali treated Cellophane or synthetic resin. The cell may be packed in an anti-alkaline treated plastics cell of polystyrene or nylon and coated with plastics paint such as epoxy resin.
Patent GB-1014931-A (GB)
Title: Method for forming a p type layer on a silicon crystal
IPC: H01L21/00
Filed: 1962-11-02
Abstract: 1,014,931. Impurity diffusion in silicon. COMPAGNIE FRANCAISE THOMSON HOUSTON. Nov. 2, 1962 [Nov. 2, 1961], No. 41556/62. Heading H1K. Formation of a deep, high concentration P- type layer by diffusion of boron in silicon is performed in two successive steps:-(a) boric acid is heated to vaporization and transported in a carrier gas to come into contact with silicon members to be treated which are heated to a temperature at which the boric acid decomposes; (b) the silicon members are then heated further in a gaseous atmosphere free from boric acid vapour to a temperature at which diffusion of the boron takes place in the silicon for a period of time dependent on the thickness of the diffused layer required. In an embodiment (Figure, not shown) a furnace comprising a quartz tube has two zones at different temperatures with boric acid crystals in one zone and silicon discs in the other. A current of argon gas charged with boric acid vapour passes from the first zone at 175‹ C. into the second zone at between 500-900‹ C. to act on the silicon discs therein for two hours and then diffusion is carried out in the absence of boric acid vapour whilst the silicon discs are heated to a temperature of 125‹ C. A vitreous layer is formed on the surface of the discs during the deposition of the boric acid in vapour form. This layer absorbs undesired impurities and is subsequently removed. Conventional diffusion methods involving gallium, aluminium and indium to form P-type silicon are briefly referred to. The method is applicable to the mass production of semi-conductor devices of which PIN diodes, P+NN+ rectifiers, photodiodes and unspecified types of radiation detectors are quoted as examples.
Patent GB-1103860-A (GB)
Title: Dyeing process
Inventor: MACLEOD JOHN KENNETH
IPC: D06P3/24
Filed: 1965-09-30
Abstract: Textile materials are dyed by impregnating the material with a dyestuff composition followed by immersing the impregnated material in a bath of liquid halogenated hydrocarbon at a temperature conducive to the fixation of the dye on the material. Preferably the textile material is hydrophilic, e.g. viscose rayon and nylon and any method of application of the dye may be used. The dyes may be applied from emulsion thickened compositions, e.g. oil-in-water or water-in-oil emulsions.  Reactive acid and direct dyes are preferably applied and halogenated hydrocarbons specified are trichloroethylene, 1,1,1-trichloroethane, perchloroethylene and mixtures thereof.  In Examples a bath of boiling perchloroethylene is used to fix a reactive dye in viscose rayon and acid dyes on nylon 66.
Patent GB-1448369-A (GB)
Title: Removal of hydrocarbons from a gas contaminated therewith
IPC: B01D5/00
Filed: 1973-09-05
Abstract: 1448369 Separating hydrocarbons from gases ALUMINIUM CO OF AMERICA 5 Sept 1973 [21 Sept 1972] 41700/73 Headings B1B and B1C Hydrocarbons are removed from a gas by deposition on solid particles of a fluidised bed by passing the gas through the bed and maintaining the particles at a temperature not greater than the condensation temperature of the hydrocarbons by applying a liquid coolant to the particles to coat the particles with a thin film of coolant. The coolant, e.g. water, may be injected directly into the bed or onto the bed from above to maintain the bed at <125C. The particles may be alumina, coke, sand, silica and calcium carbonate, and the gas may be that emitted upon baking carbon electrodes.
Patent GB-863517-A (GB)
Title: Improvements relating to the separation of platinum from other metals
Inventor: RAPER ALAN RICHARDSON
IPC: C01G55/00
Filed: 1958-12-24
Abstract: Platinum is recovered as ammonium hexachloroplatinate from acid chloride solutions which also contain other precious metals, the necessary ammonium ions for the precipitation being provided by the hydrolysis of an amide in the solution.  Any water-soluble hydrolysable amide may be employed, but formamide, acetamide, and especially urea, are preferred.  The acknowledgement of prior art refers to the use of ammonium chloride to precipitate ammonium hexachloroplatinate from acid chloride solution.  The greater the acidity and temperature of the solution, the more rapid the hydrolysis and thus the precipitation.  When urea is employed it is preferred to employ 3 to 5 times the theoretical amount required and to boil for about six hours.  With acetamide the precipitation may be effected at 50 DEG C., and with formamide the precipitation may be effected at room temperature or preferably below.  When acetamide is employed, too large an excess should not be used as the palladium content of the precipitate will be increased by increasing excess of acetamide.  The starting solution may be prepared in conventional manner by dissolving the platinum-containing material in aqua regia, and then removing nitric acid, nitro and nitrosyl compounds by treating with formic acid or evaporating to dryness with hydrochloric acid and dissolving the residue in hydrochloric acid.  Gold is removed by precipitating with a reducing agent.  Any iridium present should be reduced to the trivalent state to prevent its precipitation with the platinum.  The ammonium hexachloroplatinate may be washed with ammonium chloride solution and then ignited to give platinum sponge, which may if desired be further refined by repeating the solution and precipitation steps described above.
Patent GB-1094916-A (GB)
Title: Machines for wrapping rectangular block-like articles
IPC: A24C5/35
Filed: 1965-10-01
Abstract: 1,094,916. Wrapping-machines. A. SCHMERMUND. Oct. 1. 1965 [Oct. 21, 1964], No. 41745/65. Heading B8C. Rectangular block-shaped articles 3 are directed by a pusher 1 through the feed-path of a wrapper 4, and then between guides 10, 10<SP>1</SP> into a cell having a bottom wall 11 and a top wall 12, thus folding the wrapper into a U-form around the article. The wrapping material is fed from a web 4 between rollers 5, 6, the latter roller carrying a cutter 7 to cut off suitable lengths of wrapping material. Guide means 92, 93 define the feed path of the wrapper to the wrapping position. A hinged finger 90 retains the articles in position 3a after they have been pushed forward by the part 1a of the pusher 1. On withdrawal of the pusher the articles drop to position 3b, from where the next stroke of the pusher feeds them through the wrapping web into the cell. Folding blocks 18, 19 mounted on the upper and lower walls of the cell respectively, tuck the wrapping material at the leading end of the article, and a folding member 20 subsequently descends and folds the upper rear part of the wrapping material downwards. The cell moves downwards, thereby folding the lower rear part of the wrapping upwards, and a heating member 22 seals the wrapping material at the rear. In the lower position of the cell fingers 26 fold the lateral rear parts of the wrapper and simultaneously a push member 23 pushes the article out of the cell between walls 15, 16 where a plough 17 folds the lateral lower portions of the wrapping material upwards. The push member 23 moves in a slot in the bottom walls 11 and 16 thereby allowing the cell wall 11 to be raised after the article has left the cell. The articles are pushed on to a raisable platform 27, and hence lifted into a stack at positions 3f, the final fold of the wrapper being made by walls 29<SP>1</SP> carrying heaters to seal the package. The walls 29<SP>1</SP> are movable horizontally to avoid obstruction of the articles. The walls of the cell are returned to their upper positions separately for reception of a further article, the upper wall being raised first, thereby facilitating rapid transport of articles through the machine. In a modification, Fig. 8 (not shown), a composite block of individual blocklike articles is wrapped in a machine essentially similar to that illustrated.
Patent GB-942405-A (GB)
Title: Improvements in or relating to transistor devices for logical systems
IPC: H03K3/335
Filed: 1960-12-05
Abstract: 942,405. Transistor switching and bi-stablecircuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 5, 1960 [Dec. 8, 1959], No. 41754/60. Heading H3T. A switching element for a logic circuit comprises a transistor so arranged that it operates under class A conditions. A transistor switching circuit, Fig. 3, includes in the emitter path of a high-frequency diffused junction transistor 1, a germanium diode 2 which is connected in a reverse direction. In the " off " state of the switch, this diode is rendered conductive by the bias supply 3 to provide a forward bias for the transistor. The output circuit from the stage includes a Zener diode 8, operating in its breakdown region, which determines the collector potential such that the base-collector junction remains reverse-biased in the "on" condition. In order to compensate for the variations in the performance of individual transistors, a diode 11 is connected in a forward direction in the emitter circuit. This diode is preferably a silicon diode having a high threshold voltage, so that the threshold voltage of the circuit including this diode and the base emitter path of the transistor is always higher than that of diode 2. The diode 11 also protects the base-emitter path against reverse voltage breakdown. The Figure shows two such stages 11, 11<SP>11</SP> connected in cascade. In an alternative arrangement, Fig. 4 (not shown), the threshold diode is connected in the input to the base circuit and may then also serve as an element in a diode logic circuit. A further threshold diode may also be included in the emitter circuit. In a second embodiment, the circuit is arranged as an emitter follower, Fig. 5 (not shown), the collector being connected direct to the negative supply, and the Zener diode in the output circuit omitted. In a third embodiment, providing push-pull outputs, Fig. 6, the diode 2 is replaced by a resistor in series with a second transistor 2<SP>11</SP> which also has a Zener diode 811 in its output. The base of this second diode may be taken to a bias source 15, or a further input signal may be applied to it. In Fig. 7 (not shown), three stages of the type shown in Fig. 3 have common output circuit 8, 9 and a common diode 2, thus forming an OR-gate. A bi-stable circuit may be formed by cross coupling two stages, Fig. 8, triggering pulses being applied via a third transistor 15 which has its emitter coupled via capacitors 19, 19<SP>1</SP> to the junctions of the diodes 2, 11 and 2<SP>1</SP>, 11<SP>1</SP> respectively. A number of biasic circuits may also be interconnected by diodes to form any desired logic circuit, Fig. 9 (not shown).
Patent GB-1009204-A (GB)
Title: Improvements in or relating to mixed anhydride dyestuffs
Inventor: COBB MALCOLM CARNIE
IPC: D06P3/24
Filed: 1961-11-23
Abstract: The invention comprises dyes of formula R-CO-O-CO-R1, wherein R is an organic grouping containing a chromophore and R1 is an alkyl group which optionally bears halogen acyl or acylamino substituents.  The dyes may be used to colour polyamide materials, e.g. wool or nylon by immersion in a hot aqueous dispersion of the above dyes containing acetic acid followed by treatment with sodium carbonate. The dyes are presumed to react with the fibre. Specified values of R are monoazo and anthraquinone dyes.  In examples 1-(21-methoxy-phenylazo)-2-hydroxy -3-naphthoic acid, 1-(41-carboxyphenylazo)-2-naphthol, or 4-carboxy-41-dimethylamino-azobenzene is dissolved in methylene chloride with the addition of trimethylamine and ethyl chloriformate is added. The dyes containing the group -CO-O-CO-C2H5 are obtained from the mixture by distilling off the methylene chloride in vacuo, dissolving the residue in dioxan, pouring the solution into water and filtering off the dye.
Patent GB-1245105-A (GB)
Title: A method and machine for labelling articles, more particularly textiles
Inventor: NOODER NICOLAAS WILLEM CORNELI
IPC: B65C1/00
Filed: 1968-09-05
Abstract: 1,245,105. Labelling machines. N. W. C. J. NOODER. 5 Sept., 1968 [13 Sept., 1967], No. 42270/68. Heading B8F. A labelling machine, e.g. for textiles comprises a carrier 2, mounted with a tape supply roll 6, and movable between two units, whereupon at a first unit 3 the tape is printed on, and at a second unit 4 a printed tape portion 73 is cut off and heat sealed to an article. In operation tape 71 is fed past a roller 24 by superimposed feed rolls 26, 27, located in an aperture in a guide passage 25, so projecting a portion 72 of the tape 71 into the printing unit 3 at the first carrier position. The printing unit 3 comprises an inked ribbon 33 and an adjustable printing wheel 32, set by a lever (36), Fig. 3 (not shown), or automatically. A shaft 5 (see also Fig. 4), driven by an electric motor or electromagnets, carries a disc 51 with a belt 52 fixed to an abutment 53 at one end and at the other end to an arm 28 of the feed roller 27, which has a free wheel mechanism (not shown). Rotation of the shaft 5 effects both the projection of the tape portion 72 by its action, via the disc 51, and belt 52 on the feed roller 27 and also the rotation, through 45 degrees, of the carrier 2 between its first and second positions. Starting in the Fig. 1 position, i.e. with the tape portion 72 already projecting into the printing unit 3, clockwise rotation (when viewed downwardly) of the disc 51 causes the carrier to swivel to the second unit 4. During this operation the feed roller 27 free wheels so that no more tape is projected. The second unit 4 comprises reciprocating stamps 41, 42, the stamp 41 being heated, and having a knife edge 43 which coacts with a resiliently mounted lower knife edge 44. The marked portion of the tape is now cut off and heat sealed to the required article. Movement of the carrier 2 back to its first position causes a further tape portion 72 to be projected for continuation of the process.