baber/WOPTO huggingface dataset:
Patent GB-849308-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: ELTHAM BARRY EDWARD
IPC: G21C1/10
Filed: 1957-09-19
Abstract: 849,308. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Sept. 12, 1958 [Sept. 19, 1957], No. 29473/57. Class 39(4). A high pressure carbon dioxide cooled reactor 1 has heavy water moderator 4 contained within an aluminium tank 2 pierced by tubes 18 accommodating the fuel elements, the coolant gas flowing through pipes 8, 9 and a heat exchanger 6. The moderator 4 is pressurized to equal the gas pressure by a gas pipe 12 tapped from the pipe 9 and leading through a pipe 11 to a gas/moderator interface 10. To prevent an excessive amount of carbon dioxide being dissolved in the heavy water at the interface the interfacial temperature is reduced to 5-15‹C. by cooling coils 13. Decomposition products of deuterium and oxygen which escape at the interface 10 are circulated in a closed circuit 14 including a pump 16 and recombination unit 15, the recombined heavy water being returned to the tank 2 through a valve 17.
Patent GB-949998-A (GB)
Title: Process for the production of butadiene
Inventor: DANCER STUART NEIL
IPC: C07C5/48
Filed: 1961-08-16
Abstract: Butadiene free from acetylene is prepared by reacting butene at an elevated temperature, e.g. 200-500 DEG  C., in the vapour phase with molecular oxygen over a catalyst and recovering by conventional means butadiene containing not more than 0.3% by volume of acetylene. A gaseous diluent, e.g. nitrogen and/or steam may be employed. The catalyst may be bismuth tungstate or molybdate, mixtures of tin oxide and antimony oxide, phosphoric acid/alumina, and phosphoric acid/tin oxide.  The acetylene may be removed by fractional distillation extractive distillation with acetonitrile or extraction with a preferential solvent for the butene/butadiene mixture, e.g. aromatic, alicyclic or aliphatic hydrocarbons.
Patent GB-909532-A (GB)
Title: Improvements in dry powder type fire extinguishers
IPC: A62C13/00
Filed: 1960-08-26
Abstract: 909,532. Fire-extinguishers. JONES & CO. (ENGINEERING) Ltd., SAMUEL, and PHILLIPS, C. H. Aug. 21, 1961 [Aug. 26, 1960], No. 29595/60. Class 47. A small fire-extinguisher in which powder is expelled from a closed container 1 by gas pressure derived from a gas cartridge 11 pierced on operation of a manuallyoperable plunger 12 has a neck fitting 3 including a cylindrical support 5 for the cartridge 11 fitted with cartridge-piercing means 9 through which gas can be admitted to the container 1, at least one port 8 for effluence of powder to a discharge nozzle 7 and is provided with a pair of sealing-rings 15, 16 on the plunger 12 which, in the inoperative position, isolate the ports 8, and in the operative position open the ports to the nozzle 7. As shown, a spring- pressed pin 15 in the plunger actuating stem 13 is employed to ensure that the plunger is retained in its operative position.
Patent GB-228659-A (GB)
Title: Balancer for un-symmetrically loaded alternating current systems
IPC: H02J3/26
Filed: 1923-11-24
Abstract: 228,659. Railing, A. H., and Kahn, M. L. Nov. 24, 1923. Balancing.-An unsymmetrically loaded three phase alternating current system is balanced by two synchronous single phase machines connected within the star connection of a synchronous three phase machine. The single phase machine D, Fig. 3, is connected to the mid point of the single phase machine E, F, and at no load the electromotive forces are in quadrature. The three terminals of the combined machines complete the star connection of the three phase machine A, B, C. By varying the excitation of the machines D and EF the neutral point of the combination is shifted so that it takes an unbalanced load from the supply system and compensates the existing unsymmetrical condition of the latter. The exciting windings D', and FE<1> of the single phase machines are supplied by pairs of opposed direct current machines G, G' and H, H<1>. The relays controlling the fields of these direct current machines virtually measure the height KL of the vector triangle, Fig. 2, and the distance PL, LR. The relays, if acting against springs or gravity. will correct both the phase angles and the voltages, whereas if they react with each other they will control the phase angles only.
Patent GB-765777-A (GB)
Title: Improvements in hand-operative knitting machines
IPC: D04B39/00
Filed: 1954-10-14
Abstract: 765,777. Knitting-machines. RAJNAI, B. Oct. 14, 1954 [Oct. 14, 1953], No. 29677/54. Class 74 (2). Each support 14 for the end of the pin bar 32 of a hand-operated knitting device is secured by a nut 31 against a wedge 22 which is inserted between a flange 18 of the support 14 and a block 2 fixed to the front of the device. By adjusting the position of the wedge 22 the position of the bar 32 in front of the device can be varied and thereby effect the length of the loop drawn by the hooks which are reciprocated between the pins. The face of the block 2 is serrated to receive a tooth on the wedge 22 to prevent its movement after it -has been positioned. Spacing bolts 37 are provided along the front of the device to position the midportions of the bar 32. Specification 765,776 is referred to.
Patent GB-1466277-A (GB)
Title: Sulphites of aromatic glycolic amides
IPC: A01N/
Filed: 1974-07-05
Abstract: 1466277 Aromatic glycollic amide sulphites BASF AG 5 July 1974 [7 July 1973] 29874/74 Heading C2C The invention comprises sulphites of glycollic amides having the formula in which R n <SP>1</SP> denotes 0-4 substituents selected from alkyl, alkoxy, haloalkyl and halogen, R 2  denotes an aliphatic, cycloaliphatic or araliphatic radical, and R 3  denotes an aliphatic or cycloaliphatic hydrocarbon radical of not more than 6 carbon atoms which may be substituted by halogen and/or hydroxy. They may be prepared by reacting a chlorosulphinate of formula ClSO 2 R<SP>3</SP> with a glycollic amide of formula The products of the invention may be used as active ingredients in herbicidal compositions. The compositions may contain conventional extenders and diluents, wetting agents, other herbicides or pesticides or growth regulators.
Patent GB-879024-A (GB)
Title: Improvements in or relating to glass fibre sheet material
IPC: D04H5/12
Filed: 1957-09-23
Abstract: 879,024. Needle felts; laminates. MICROCELL Ltd., HODGSON, D. J., and KIRBY, T. Dec. 23, 1958 [Sept. 23, 1957]. No. 29885/57. Classes 42 (2) and 140. Non-woven glass fibre sheet material comprises a series of substantially parallel rovings (i.e. bundles of strands which are made up of a number of filaments) of continuous glass filaments held together by randomly disposed chopped glass fibres. The latter, which are preferably between ¢ and 4 inches long, are applied to the rovings as a layer and are needled into the rovings to hold the latter together. Asbestos or cellulosic fibres may be included with the randomly-disposed glass fibre, The material may be used as a reinforcement for a product moulded from a synthetic resin, e.g. a polyester, epoxy or phenolic resin. The reinforcement may comprise a number of superimposed layers of the material with the rovings of the material extending in different directions.
Patent GB-341033-A (GB)
Title: Apparatus for handling ash and other solids in bulk
IPC: F23J1/00
Filed: 1929-10-02
Abstract: 341,033. Feeding grannlar &c. materials. ASH CO. (LONDON), Ltd., 63, Lincoln's Inn Fields, London.-(Duetsch, J.; 95, North Walnut Street, East Orange, New Jersey, U.S.A.). Oct. 2, 1929, No. 29920. [Class 59.] In apparatus for handling ash and other solids in bulk, comprising surfaces 3 which receive and contain the solids in piles, the surfaces 3 incline downwards divergingly from a summit, liquid under pressure being directed against the exposed surfaces of the piles. Ash is washed from the surfaces 3 through gratings 5 into the sluiceway 6. The openings 4 in the lateral walls 1 of the hopper are closed and sealed by counterweighted doors 7. Housings 9 having inspection doors 10 contain highpressure pipe lines 11 which have ball and socket joints so that water is discharged from nozzles 12 across the full width of the surfaces 3. A T-shaped member 14 at the apex of the supporting surfaces prevents water overshooting the apex when the ash level is low. In a modification for hoppers of considerable width, a plurality of openings 4 and doors 7 is provided on each side, and a sluiceway extends down each side.
Patent GB-391375-A (GB)
Title: Improvements in and relating to tool rotating chuck
IPC: B23B31/12
Filed: 1932-10-26
Abstract: 391,375. Chucks. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) Oct. 26, 1932, No. 29959. [Class 83 (iii).] A tool-holding chuck which may be actuated whilst rotating comprises a body 11 attached to a driving shank 10 and having freely rotatable thereon a cap 14 bevelled at the lower end to engage jaws 22 normally held apart by springs. The cap is held to the body by a flange 12 on the body and a disc 13 attached to the cap by screws. A sleeve 15 is splined to the body by a radial pin engaging a keyway therein, the lower part 18 being cylindrical and guided in a flange 19 on the cap whilst the upper part is screwed for engagement with dogs 23 radially slidable in the cap. Springs 24 normally maintain the dogs clear of the sleeve 15 as shown in the Figure, and to close the chuck an exterior ring 26 is raised to cause the bevelled edge of a groove 27 therein to engage the dogs with the sleeve, whereupon the rotation of the body and sleeve within the cap depresses the sleeve and moves the jaws axially through a thrust plate 21. To release the chuck, the ring 26 is lowered, thereby releasing the dogs 23 from the sleeve 15 and allowing a spring 20 to move the sleeve upwards.
Patent GB-223190-A (GB)
Title: Improvements in or relating to the manufacture of aralkyl resorcinols
IPC: C07C39/15
Filed: 1923-11-28
Abstract: Aralkylresorcinols are produced by heating resorcinol and an aromatic acid with a condensing agent such as zinc chloride, purifying the resulting acylresorcinols, and reducing them, for example, by means of zinc amalgam and hydrochloric acid.  An example shows the production of benzylresorcinol, the intermediate benzoylresorcinol being purified before reduction by passing carbon dioxide into a sodium carbonate solution of the reaction mixture and crystallizing the precipitated oil from benzene.  The benzylresorcinol is finally distilled in vacuo and recrystallized from benzene.  The products are non-toxic antiseptics and germicides.  Reference has been directed by the Comptroller to Specification 222,136.
Patent GB-890526-A (GB)
Title: Process for the preparation of acrylonitrile
Filed: 1959-09-02
Abstract: The process of the parent Specification for the simultaneous preparation of acrylonitrile, monovinyl acetylene and acetaldehyde by introducing acetylene and hydrocyanic acid under superatmospheric pressure in the range 1-4 atmospheres absolute and at about 70 DEG C. to about 110 DEG C. into an aqueous cuprous chloride solution containing dissolved hydrochloric acid, ammonium chloride and/or an alkali metal chloride is modified by using an amount of between about 20% and 50% of HCN, calculated on that quantity of HCN which would, when using an excess of HCN, be converted to acrylonitrile under the reaction conditions. By-products obtained include divinyl acetylene, cyanbutadiene, methyl vinyl ketone, chloroprene and higher acetylene polymers.
Patent GB-1347825-A (GB)
Title: Conveying installations using pneumatic tubes
IPC: B65G51/20
Filed: 1972-06-27
Abstract: 1347825 Pneumatic despatch apparatus SOC FRANCAISE DES TUBES PNEUMATIQUES 27 June 1972 [30 June 1971] 30082/72 Heading B8A A pneumatic tube conveyer installation comprises a pneumatic tube element closed at one end and floating clapper valve means comprising at least one floating clapper valve co-operable with two valve seats, one valve seat being associated with the closed end of the tube element, the other valve seat being associated with the opposite end thereof. In one embodi ment, Fig. 1, two valves 8, 11, are provided ir opposition so that as a carrier arrives at the station formed by tube element 1 closed at the end 3, the carrier is braked by a cushion of air caused by the closing of valve 8 and the opening of valve 11, the valves operating automatically by the air flow conveying the carriers. For despatch, valve 8 opens while valve 11 closes In an alternative embodiment (Fig. 5, not shown) volumetric blowing machines are used in conjunction with a floating clapper valve having a double seating.
Patent GB-737738-A (GB)
Title: Improvements in loading machines
Inventor: STRAIN JAMES
IPC: E21D9/12
Filed: 1951-12-24
Abstract: 737,738. Loading machines; endless scraper conveyers. MAVOR & COULSON, Ltd. Dec. 21, 1953 [Dec. 24, 1952], No. 30096/51. Class 78 (1). A loading machine for use in coal mines and quarries comprises an endless scraper conveyer 18 which is supported on a frame comprising a main body 10, mounted on a pair of endless tracks 13, and a jib 11 movable relatively to the body 10 about a vertical pivot 12. The conveyer chain passes round a driving sprocket 20 and a tensioning pulley 21 arranged to take up slack when the jib is swung to either side. The axle 36 of the pulley 21 is displaceable lengthwise of the jib under the control of two lever- and-spring assemblies, each consisting of compression springs 33, 34 supported on rods 37, 38 respectively, and a lever 31 pivoted at one end on a pin 32 on the jib 11. The spring 33 at one end presses directly against the lever 31 and at its other end reacts against a screwed collar 39 on the rod 37 so as to push the axletowards the end of the jib. The rod 37 is slidable through a block 40 swivelled to the end of the lever 31 and also through a bracket 41 fixed to the jib. The spring 34 presses against a screwed collar 42 on the rod 38 and reacts against an abutment bracket 35 on the jib, whilst the rod 38 is secured to a block 43 swivelled to the lever 31 so as to pull it towards the end of the jib. At its opposite end the rod 38 passes through a guide 44 in a plate 45 extending across the jib. The initial stresses applied to the springs 33, 34 are adjusted by the collars 39, 42, whilst the brackets 35, 41 limit the movement of the lever 31 in both directions. The springs 33, 34 with their supporting rods may be arranged on opposite sides of the lever 31. The jib is slewed about the pivot 12 by a hydraulic piston-and-cylinder device mounted on each side of the machine. Each cylinder is mounted on a side of the jib with its piston rod connected to the body 10 by a rope anchored at one end to the cylinder, passed round a pulley on the end of the piston rod and guided by a pulley on the jib to an offset anchor pin on the body 10.
Patent GB-1404084-A (GB)
Title: Closures for containers
IPC: B65D41/48
Filed: 1973-06-25
Abstract: 1404084 Tamper-proof closures JOHNSEN & JORGENSON (PLASTICS) Ltd 7 Dec 1973 [25 June 1973] 30099/73 Heading B8T A tamper-proof closure comprises a cap part 2 hinged to an anchor band 4 and a tear band 3 between the cap part and anchor band with prepared tear lines 5 and 6 connecting the tear band 3 respectively with the cap part 2 and anchor band 4, the tear band 3 being provided with a tear tab 8 for removal of the band 3 and is characterized in that a bridge member 9 is provided to visibly connect the tear band 3 to the cap part 2 and to the anchor band 4, the tear tab 8 forming part of the bridge member 9. The bridge member 9 is connected to the cap and anchor by elements 17 and 18 respectively. A second bridge member 10 is preferably provided diametrically opposite to the bridge member 9, the member 10 comprising one or more than one coupling members. The closure is preferably moulded from plastics material.
Patent GB-1438980-A (GB)
Title: Electrical connecting and disconnecting device
IPC: H01H33/00
Filed: 1973-06-25
Abstract: 1438980 Heavy current switches SIEMENS AG 25 June 1973 [23 June 1972] 30148/73 Heading H1N An electrical switching device for applying and removing a heavy current short circuit connection and suitable for use under conditions of residual excitation of polyphase electrical machine is shown in single-pole form in Fig. 1 and includes a displaceable first member 3, with drive means not shown or described and which is electrically and slidably connected to a bar 1 by a cage 2 and a second member 6 displaceable with the first into a contact making position with a fixed conductor 10 which is provided with counter-contacts 4 and 11. The first member 3 is hollow and switching means 5 is provided within it comprising a conventional vacuum switch, Fig. 2, consisting of a relatively fixed contact 13 connected to the second member 6, a relatively movable contact 14 which is connected to the first member 3 at all times, and including electromagnetic means 7, 18 for opening the contacts of the switching means against the closing force of springs 19, 20. Control means for the switching means 5 and operable in dependence on the displacement movement of the first member 3 comprises switches 9 and 21 actuated by an abutment 8 on member 3 and a relay 22 (Fig. 3a, not shown). In operation, as the first and second members 3, 6 are displaced from an "off" position (Fig. 3a) in which contacts 13, 14 of the switching means 5 are closed and the members 3, 6 are disconnected from the counter-contacts 4, 11 of the conductor 10, towards the contact making position of the device the control means first causes the contacts 13, 14 of the switching means 5 to open (Fig. 3b) before the second member 6 engages the counter-contact 11 (Fig. 3c) but immediately following this engagement the contacts 13, 14 are caused to close (Fig. 3d) and in the fully displaced position the first member 3 engages the counter-contact 4 in the fully connected position of the device. For disconnecting the reverse sequence applies. An alternative arrangement in which the drive means for the displacement action is arranged to act on the bar 1 and thus displace the bar 1, cage 2, and member 3 jointly is referred to.
Patent GB-997869-A (GB)
Title: Information storage system
IPC: G11C11/06
Filed: 1963-07-30
Abstract: 997,869. Circuits employing bi-stable magnetic elements. THOMPSON RAMO WOOLDRIDGE Inc. July 30, 1963 [Aug. 2, 1962], No. 30231/63. Heading H3B. [Also in Division G4] In a word-organized memory, a word is selected by an arrangement comprising an array of switches connected respectively to the individual word lines, a single current source connected to all the switches being effective only via selected switch to energize the associated word line. A second array of switches may be provided, each word line being connected to a unique pair of switches, one from each array, Fig. 3. As described, a memory comprises four banks B1-B4 each containing 16 magnetic cores arranged in four word lines. The address of a required word in the memory is set up as four bits WXYZ (= 1101, as shown) in an address register 10, bits YZ selecting one of the four banks B1-B4 via a bank select switch array 20 and bits WX selecting one of the four word lines within a bank via a word select switch array 22. Fig. 4 shows the word select switch array 22 in more detail, the bank select switch array 20 being similar. The word select switch 22 comprises four cores 1-4 each having a bias winding 42; W and X switching windings 46, 44; a read winding 30 and write winding 32. In operation, assuming that the word address is 1101, word select core 4 and bank select core 4 will be switched via decoding matrices such as 34, thereby inducing a voltage in the read output winding 30 of word select core 4 to forward bias a diode 26 associated therewith. After a 0-2 Ás delay a current source I RS  is energized to pass a read current I R  through the selected word line to read out the selected word to a data register, Fig. 3. The data read out can be re-written when the word select core 4 and bank select core 4 are reset by the bias since diode 28 is then forward biased and if, after a 0À2 Ás delay, current source I ws  is energized, a write current I w  is passed along the selected word line to write the data stored in the data register, Fig. 3, into the cores of the selected word. In the same way fresh data can be written into the memory.
Patent GB-1447741-A (GB)
Title: Process for the separation of water from multi-component organic mixtures
IPC: C07C51/46
Filed: 1974-07-08
Abstract: 1447741 Separating water from multicomponent organic mixtures HOECHST AG 8 July 1974 [13 July 1973] 30237/74 Heading BIB Water is separated from multi-organic component mixtures at least one component of which is partially miscible with water and forms an azeotrope therewith, by distilling off the azeotrope, separating the distillate into an organic phase and an aqueous phase, recycling a first portion of the organic phase to the top of the distillation column and recycling a second portion of the organic phase to the column at or below the point of mixture feed. The partially miscible component may be C1-C4 carboxylic acid esters. The mixture may also contain C1-C5 carboxylic acids. The examples describe the removal of water from acetic acid/ vinyl acetate and acetic acid/ethyl acetate mixtures.
Patent GB-1299247-A (GB)
Title: Benzofuran derivatives and process for preparing the same
Inventor: BINON FERNAND
IPC: C07D307/80
Filed: 1970-06-22
Abstract: 1299247 Amino-ethers derived from 3-benzoylbenzofuran LABAZ 21 May 1971 [22 June 1970] 30257/70 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein (a) n is 3, X is Br or I, R is C 2-6  alkyl, Ph or PhCH 2  and Am is Me 2 N, Et 2 N, Pr 2 N, pyrrolidino or piperidino; (b) n is 3, X is Cl, R is Et or Bu and Am is Et 2 N, Pr 2 N, pyrrolidino or piperidino; or (c) n is 4-6, X is I, R is Et or Bu and Am is Me 2 N, Et 2 N or piperidino. These compounds are prepared by (1) condensing the corresponding bromoalkoxybenzoylbenzofuran with Am-H, or (2) (when n=3) condensing the corresponding hydroxybenzoylbenzofuran with Z-(CH 2  ) 3 -Am, where Z is halogen or p-TsO. Therapeutic compositions for the treatment of angina pectoris by oral or rectal administration comprise compounds of the above formula.
Patent GB-1278859-A (GB)
Title: Optical angle-measuring instrument graduated circle securing arrangement
IPC: G01C1/06
Filed: 1970-06-22
Abstract: 1278859 Mounting dials WILD HEERBRUGG AG 22 June 1970 [6 May 1970] 30259/70 Heading G1J A graduated dial 1 (e.g. of an optical angle measuring instrument) is connected to a carrier 3 by at least one resilient adhesive pad 5 (the distribution of which is preferably symmetrical e.g. one or more annular areas or segments about the axis of the dial and carrier). The assembly shown has a locating surface 2 and recesses 6, 7 for excess adhesive.