baber/WOPTO huggingface dataset:
Patent GB-1027937-A (GB)
Title: Improvements in and relating to screw rotor compressors
Inventor: NILSSON HANS ROBERT
IPC: F04C18/16
Filed: 1962-10-31
Abstract: 1,027,937. Rotary compressors. SVENSKA ROTOR MASKINER A.B. Oct. 31, 1962, No. 41146/62. Heading F1F. In a positive displacement rotary compressor of the intermeshing screw type comprising a casing 14, Figs. 1 and 2 (not shown), closed at its ends by end walls 16, 18 and having a pair of intersecting bores mounting male and female rotors 10, 12 with the male lands being substantially convex and lying outside the p.c.d. and the female lands substantially concave and lying mainly inside the p.c.d., liquid is injected into the casing at the intersection of the bores through ducts 38 to seal and cool the compressor at a rate so that the mass flow of the liquid to the mass flow of the elastic fluid is at least in the ratio of 1À5 to 1 and the ratio increases in inverse proportion to changes in the tip speed of the rotor. The liquid is supplied through a valvecontrolled duct 34 and after passing through the ducts 38 passes between the rotors and hits a splash plate 42 and then passes around the casing wall. Increase in liquid supplies increases compressor efficiency, but at the same time increases cost of pumping equipment. Also, at high tip speeds with a large amount of liquid, churning occurs resulting in losses. A minimum ratio of 1À5 to 1À0 ensures that the operating temperatures, when hydrocarbon liquids are used, does not exceed the accepted safety standards.
Patent GB-1175052-A (GB)
Title: Improvements in or relating to change giving machines
IPC: G07D1/02
Filed: 1965-09-28
Abstract: 1,175,052. Change-speed apparatus. ELECTRIC SHOP DEVELOPMENTS Ltd., and W. L. ROBINSON. 23 Dec., 1966 [28 Sept., 1965], No. 41227/65. Heading G4X. Change-giving apparatus includes a container 11 for receiving stacks of coins 10, a roller 14 for feeding the coins from the stacks, and a shoot 26 for directing the displaced coins to a coin tube from which they are dispensed as change by a pusher. The coin tube contains a feeler actuated when the coins fall below a predetermined level to complete the drive circuit of a motor 16 rotating the roller 14. The container is inclined to the vertical and may receive coins of two denominations, the shoot being modified to direct the coins into separate coin tubes, Fig. 5 (not shown). In another arrangement, two parallel, inclined containers are provided, the upper one being pivotable about the axis of its associated feed roller. In operation, energization of motor 34 to dispense coins also energizes relay PR/ 2  to close switch PR1 and change over switch PR2. If the coins fall below a predetermined level in the coin tube, switch 31 moves over to operate relay NMR/ 1  closing switch NMR1. The motor 16 is energized to drive the roller 14. A cam 19 on the roller shaft closes a switch 21 for a predetermined period, to hold-on relay NMR/ 1  after switch PR2 returns to the position illustrated A warning lamp 35 indicates when the coins are below the predetermined level and the change-giving apparatus is inactive.
Patent GB-1451783-A (GB)
Title: Abating exhaust noises for jet engines
IPC: F01N1/08
Filed: 1973-10-04
Abstract: 1451783 Jet engines NATIONAL AERONAUTICS & SPACE ADMINISTRATION 4 Oct 1973 [23 March 1973] 41354/74 Divided out of 1451782 Heading F1J To reduce the noise of the exhaust gas from a jet engine of the by-pass type, e.g. ducted fan engine, the by-pass gas flow is given a rotary motion upstream of the by-pass outlet 56 and the main exhaust nozzle 24 whereby the rotation continues in the by-pass outlet and in the flow which exits therefrom. As shown, the by-pass gas is rotated by inclined vanes 68. Further inclined vanes 28 rotate the main exhaust gas flow. Again, Figs. 1, 2, (not shown), the outer casing (2) extends beyond the exhaust nozzle, and an afterburner is provided. Also, Figs. 4, 5, (not shown), the by-pass gas is rotated by tangentially directing exhaust gas into the by-pass duct via inclined slots (136) in the exhaust passage wall (138).
Patent GB-948791-A (GB)
Title: Improvements in or relating to the production of uranium and plutonium monocarbides
Inventor: SOWDEN RONALD GEORGE
IPC: G21C3/62
Filed: 1960-12-02
Abstract: Uranium monocarbide or a mixture thereof with up to 30 moles per cent of plutonium monocarbide is prepared by the reaction of a uranium oxide, or a mixture thereof with up to 30 moles per cent of a plutonium oxide, with substantially the stoichiometric proportion of elemental carbon, at a reaction temperature of up to 1500 DEG  C. and under a pressure below 200 m  of mercury over the reactants, the gaseous products of the reaction being continuously removed. Preferably, the reactants are used in powder form.  The use of the mixture of both oxides yields a single-phase mixed carbide. In Examples 1 and 2, uranium dioxide and carbon are heated to 1380 DEG C. at a pressure not exceeding 150 m  of mercury.  In Example 3, excess oxalic acid is added to a solution containing uranium and plutonium nitrates.  The precipitate is dried, calcined and reduced in hydrogen to yield a powder of mixed uranium/plutonium oxide. This is mixed with carbon and heated to 1420 DEG  C. at a pressure not exceeding 150 m  of mercury.
Patent GB-857065-A (GB)
Title: Improvements in slip casting
IPC: B29C41/16
Filed: 1958-12-23
Abstract: A hollow article, e.g. a crucible, of metal or a metallic compound is cast in a plaster of Paris mould from a slip prepared by suspending the powdered metal or metallic compound in a mixture of a resin and an organic suspending medium, e.g. toluene or xylene.  In one example 904 gms of tunsten powder of average particle size 2 to 2,2 microns were added to 90 m.l. of a solution of methyl phenyl polysiloxane in xylene; about 9 gms of the resin being in the solution.  The slip was cast and the dried crucible sintered in a graphite furnace at 1900 DEG C. in an argon atmosphere.  The polysiloxane may be formed in situ by mixing a hydrolysable silane with water in an organic medium. Silicon, molybdenum, metal carbides, nitrides, borides, silicides, salts, and halides may be cast by the method.
Patent GB-1418962-A (GB)
Title: Weighing machine provided with an hydraulic damper device
IPC: G01G23/08
Filed: 1973-09-05
Abstract: 1418962 Sealing hydraulic dampers W KRAUT [trading as BIZERBA-WERKE WILHELM KRAUT KG] 5 Sept 1973 [8 Sept 1972] 41742/73 Heading F2S [Also in Division G1] An hydraulic piston-cylinder damper for damping movements of the weighing lever 12 of a balance (see Division G1) has on the piston-rod 8 a sealing element 15 which is normally ineffective but which, when the piston-rod is displaced sufficiently, closes the piston-rod opening 9 to prevent loss of liquid during transportation of the balance. When the knife edge 13 of the weighing lever 12 is lifted off its seat 14 to lock the balance the piston-rod 8 is raised so that the sealing element 15 contacts the resilient end wall 6. The sealing element 15 may also be resilient. The sealing element 15 may be attached to the piston-rod 8 outside the end wall 6 and descend on to it when the balance is locked.
Patent GB-418363-A (GB)
Abstract: 418,363. Electric selective signalling systems. SHIPTON, E., Caxton House, Tothill Street, London. Feb. 22, 1933, No. 5478. [Class 40 (i).] In an intercommunication telephone system or, according to the Provisional Specification only, in an office signalling system, a different audible signal is connected up or a different note is generated by a marginal - type interrupting relay in accordance with the voltage connected to a signalling system. As shown in the Figure, potentials of 4 volts and 6 volts respectively are connected to the signalling line by keys A and B. When 4 volts potential is applied the calling device 4 only responds whilst when 6 volts potential is connected the marginal relay 2 is energized and device 6 becomes effective. Embodiments in which the relay 2 is omitted and in which a single relay having lower voltage and higher voltage armatures is used as the responding device, the lower voltage armature interrupting the supply circuit to provide a buzzer effect, are described in the Specification.
Patent GB-1322597-A (GB)
Title: Compounds derived from tetralone
IPC: C07D295/096
Filed: 1970-09-02
Abstract: 1322597 1-Amino-1-vinyl-tetralines U K PANDIT and H O HUISMAN 2 Sept 1970 [3 Sept 1969] 41921/70 Headings C2C and C2U The invention comprises compounds (IV), wnere R is C 1-8  alkoxy and X is -(CH 2 ) 2 , -(CH 2 ) 3 - or -CH 2 -O-CH 2 -, and their preparation by reacting a perchlorate (III) with a Grignard reagent CH 2  : CH-MgHal, where Hal is Cl, Br or I. Perchlorates (III) are made by reacting tetralones (I) with the appropriate cyclic amines and reacting the resulting cyclic amine (II) with HClO 4 . Steroids (VI): where R is C 1-8  alkoxy and R<SP>2</SP> is C 1-8  alkyl are made by reacting compounds (IV) with 2-(R<SP>2</SP>- substituted) - pentan - 1,3 - ones and cyclizing the resulting seco-steroid (V):
Patent GB-1060266-A (GB)
Title: Optical objective system
IPC: G02B15/14
Filed: 1964-10-16
Abstract: 1,060,266. Zoom lenses. M. C. SCHNEIDER and H. J. SCHNEIDER, [trading as JOSEPH SCHNEIDER & CO. ] Oct. 16, 1964 [Oct. 16, 1963], No.42243/64. Heading G2J. The objective comprises a vari-focal forward group I-IV and a fixed focus rear group V, the forward group consisting of a first, normally fixed, positive component I consisting of a negative lens L1 in front of three air spaced positive lenses L2-L4; a second movable negative component II consisting of two air spaced negative lens members L5, L6 and L7; a third movable negative component III consisting of a single negative lens member L8, L9; and a fourth fixed positive component IV consisting of a single positive lens member L10. Optical data are provided for the example shown.
Patent GB-1432034-A (GB)
Title: Edge improvement for window with electrically conductive layer
IPC: H05B3/86
Filed: 1973-09-07
Abstract: 1432034 Laminated windscreens SIERRACIN CORP 7 Sept 1973 42334/73 Heading B5N [Also in Divisions H3-H5] In the manufacture of electrically-heatable windscreens an electrically conductive coating 27 is applied to a transparent plastics carrier film 26, an edge portion of the coating is removed, and the film is bonded to a transparent plastics layer 23. A transparent rigid outer layer 21, e.g. glass, polymethyl methacrylate, polycarbonate, is generally provided. The removal may be achieved by abrasion or by etching with HCl/HNO 3  around the entire periphery, the central area being masked if necessary; abrasion may further roughen the underlying carrier 26 and thus facilitate lamination. The interlayer 23 may be polyvinyl butyral and the carrier 26 and coating 27 may be vacuummetallized polyethylene terephthalate film. A further outer layer 22 and optionally an interlayer 24 are generally provided, although carrier 26 may form an outer layer. As shown, the assembly includes a copper foil bus-bar 11 which may be bonded to the coating 27 by a conductive adhesive or by heating and which becomes embedded in the interlayer 23 during lamination. In assembling the layers, the interlayers 23, 24 and the carrier 26 may be united to form a pre-laminate.
Patent GB-1162409-A (GB)
Title: Aqueous Polymeric Dispersions
Inventor: KLEBERT WOLFGANG
IPC: D06M15/29
Filed: 1967-09-18
Abstract: 1,162,409. Aqueous polymeric dispersions; reacting addition polymers with isocyanatecontaining polymers. FARBENFABRIKEN BAYER A.G. 18 Sept., 1967 [30 Sept., 1966], No. 42362/67. Headings C3G, C3P, C3R and C3T. [Also in Division D1] Aqueous polymeric dispersions are prepared by reacting (1) an aqueous dispersion of a polymer or copolymer of olefinically unsaturated monomers containing groups capable of reacting with NCO groups with (ii) product obtained by reacting a high M.W. compound which contains at least two active hydrogen atoms with an excess of polyisocyanate, the proportions of (i) and (ii) being such that no free NCO groups are present in the resulting dispersion. Suitable monomers which may be used to form the polymer or copolymer (i) are α,#-definically unsaturated monocarboxylic acids and their esters and amides and acrylontrile and methacrylonitrile, aromatic vinyl compounds, aliphatic vinyl compounds, conjugated diolefins, methylol compounds of acrylamide and methacrylamide and Mannich bases of acrylamide and methacrylamide. Exemplified polymers (i) are derived from butyl acrylate/styrene/acrylamide, and styrene/butyl acrylate/acrylamide grafted on to polybutadiene. The product (ii) is suitably prepared by reacting a polyether, polyester or polysiloxane which contains at least two active hydrogen atoms with excess of an aliphatic cycloaliphatic or aromatic diisocyanate. The product (ii) may be prepared in the form of an aqueous emulsion to which may be added an anionic, cationic or non-ionic emulsifying agent and then added to the aqueous dispersion of the polymers or copolymers (i). Alternatively the product (i) may be emulsified directly into the aqueous polymer or copolymer dispersion.
Patent GB-1458660-A (GB)
Title: Thrust balancer device
IPC: F16C17/06
Filed: 1972-09-13
Abstract: 1458660 Bearings GLACIER METAL CO Ltd 12 Dec 1973 [13 Sept 1972] 42468/72 Heading F2A A thrust bearing has a device for balancing loads between parts of the bearing, the device comprising two members 11 each having a sealed capsule 17 for hydraulic fluid, the capsules being interconnected by a flexible fluid pipe 19, and each member having load bearing surfaces 14 on opposite sides of the member, the surfaces being relatively movable. The capsules may consist of bellows 15 connecting parts 12, 13 carrying the load bearing surfaces. A thrust bearing may have more than one balancing device, each consisting of two or more interconnected members. The thrust in the devices may be equalized by arranging for the load bearing surface of one of the members of one device to be in contact with the load bearing surface of a member in the other device. The arrangement may be such that the pressure of fluid may be varied externally (Fig. 6, not shown).
Patent GB-961850-A (GB)
Title: Apparatus for measuring magnetic fields
Inventor: BONNET GEORGES
IPC: G01R33/24
Filed: 1959-12-15
Abstract: 961,850. Magnetic testing apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 15, 1959 [Dec. 16, 1958], No. 42672/59. Addition to 888,439. Drawings to Specification. Heading G1N. The self-oscillatory circuit resonant at the Larmor frequency comprising the coil 13 shown Fig. 4 of the parent Specification is shunted by a network having an input admittance constituted by a negative conductance and a susceptance, means being provided for automatically varying the value of the conductance in dependence upon the amplitude of the oscillations delivered by the resonant circuit such that the absolute value of the conductance is a decreasing function of the amplitude, and means for rendering negligible the value of the susceptance. The arrangement facilitates tuning of the circuit and increases the precision of measurement of the Larmor frequency. The network comprises essentially an amplifier having a first amplification stage with a variable gain, a second amplification stage and an adjustable feedback circuit between the two stages. The means for automatically varying the value of the conductance comprise means for deriving from the oscillating voltage of the resonant circuit a D. C. voltage having an amplitude proportional the oscillating voltage and means for delivering the D. C. voltage to the first amplification stage to reduce the gain of the first stage when the D. C. voltage increases. The means for minimising the value of the susceptance comprise a negative feedback loop in the second amplification stage and at least one variable compensating capacitor adapted to balance the phase shift produced by the network so as to make it equal to zero for a frequency located at the centre of the working frequency band corresponding to the magnetic field to be measured. Specification 914,751 also is referred to.
Patent GB-899370-A (GB)
Title: A process for the production of tropolone
Filed: 1960-12-13
Abstract: In a process for the preparation of tropolone a 2-halotropone is reacted with a mixture of formic acid and water under the influence of heat.  In an example tropolone is obtained by boiling 2-chloro-tropolone with formic acid and water under reflux and reduced pressure, precipitating the product as the sodium salt and acidifying an aqueous solution thereof.  Specifications 887,693, 887,694 and 893,228 are referred to.
Patent GB-1277322-A (GB)
Title: Apparatus for coiling metal bands
Inventor: TRADLER MARVIN M
IPC: B21C47/04
Filed: 1970-09-09
Abstract: 1277322 Winding and reeling WHEELING-PITTSBURGH STEEL CORP 9 Sept 1970 43134/70 Heading B3E Apparatus for coiling metal bands comprises a framework 1, 2, a reel 13 on each side of the framework rotatable on vertical axes, means for driving the reels, a pair of vertically movable laterally spaced rails 23 between said reels, a rear roller 24 mounted on a vertical axis on each of the rails behind the adjacent reel and provided with a groove for receiving a metal band 25, an arm 27 extending forward from each roller, a front roller 28 on the end of the arm adjacent each reel also having a groove, an intermediate roller 30 carried beside the front roller on the arm for engaging the opposite side of the adjoining band and means for raising and lowering said rails continuously at a uniform rate to spool the bands on the reels. Each reel is driven from chain and sprocket gearing by an hydraulic driving unit 18. The rollers 24 and 28 have adjustable collars to accommodate different sizes of band. The rails and the rollers carried by them are reciprocated by double-acting hydraulic cylinders 31 (Fig. 5) the piston rods being attached to the rails by racks 35 which engage pinions 36 mounted on a common shaft 37 so that each end of the rails move together. The flow of hydraulic fluid to and from the cylinders 31 is controlled to raise and lower the rails continuously at a uniform rate by means of a metering pump driven by a chain and sprocket drive 50 (Fig. 9) from the reel shaft 12. Consequently the speed of reciprocation of the rails will depend on the speed of rotation of the reels. A counterbalance valve 52 ensures that the pistons move upwardly and downwardly at the same speed. The reels pull the bands on edge through a separator 62 located after pinch rolls 63, 64 the upper roll of which has an air-operated solenoid controlled drag brake 65. Brakes are also provided on the pinion shaft 37.
Patent GB-1408885-A (GB)
Title: Toilet preparation with antibacterial activity
IPC: A61K8/46
Filed: 1971-09-16
Abstract: 1408885 Preparing a liquid detergent composition CIBA-GEIGY AG 21 Sept 1972 [16 Sept 1971] 43203/71 Heading C5D A liquid detergent comprising (a) an anionic detergent which is an ethylene oxide adduct, (b) a foam stabilizer, (c) a hydrotrope and (d) a bactericide is prepared by mixing the foam stabilizer, hydrotrope and bactericide and then adding the detergent. The detergent may be added as an aqueous or aqueous alcoholic concentrate. The composition may also include perfume and colouring. Ingredients specified include sodium lauryl ether sulphate (detergent), coconut monoethanolamide ethylene oxide adduct (foam stabilizer), industrial methylated spirit (hydrotrope), 2,4,41 - trichloro - 2<SP>1</SP> - hydroxy - diphenyl ether, hexachlorophene, 5,5<SP>1</SP>-dichloro- 2,2<SP>1</SP> - dihydroxy - diphenyl - methane, and 2,2<SP>1</SP> - dihydroxy 5,5<SP>1</SP> - dichloro - diphenyl monosulphide (bactericides) and formalin.
Patent GB-907899-A (GB)
Title: Improvements in and relating to anchoring devices
Inventor: TAYLOR CECIL ARTHUR
IPC: F16B37/04
Filed: 1959-12-21
Abstract: 907,899. Wall plugs. RAWLPLUG CO. Ltd. Dec. 20, 1960 [Dec. 21, 1959], No. 43338/59. Class 89 (1). A wall &c. plug comprises a tube 1 of resiliently deformable material carrying a nut 2 and having a locking projection 3 for binding against the inside of the wall and preventing rotation of the plug. A screw passing through an article to be mounted on the wall is tightened in the nut, causing the tube to bulge. A flange 4 on the tube bears on the outside of the wall, the inside of which is engaged by the circumferential or lengthwise projection or projections 3 on the rubber, neoprene, &c. tube. A less-deformable section adjacent the flange 4, may protect soft-faced walls. Projections 3 may be provided at different distances from the flange 4 to suit walls of different thicknesses. The tube 1 may be closed behind the nut. Instead of embedding the nut 2 in the tube, it may be bonded to the tube-end. Specifications 622,288 and 700,379 are referred to.
Patent GB-1060587-A (GB)
Title: Apparatus for detecting faults in containers
IPC: G07C3/14
Filed: 1964-10-23
Abstract: 1,060,587. Detecting faults in containers. COMPAGNIE DE SAINT-GOBAIN. Oct. 23, 1964 [Oct. 24, 1963], No. 43343/64. Heading G1M. Apparatus for detecting faults in containers comprises a rigid form 2 which can be introduced into a container to be tested, and which is shaped on its underside to fit the inner face of the container base, plungers 13 normally projecting resiliently from the underside of the form 2 but pushed back into the form when it bears on the bottom of the container, and means to indicate failure of a plunger to be pushed back into the form when the form bears on the container base, to signify that the container is faulty. A member 12, mounted on the rod 3, is dimensioned to fit the top of the container so that the rigid form can only be lowered into the base of the container if the upper dimensions of the container are correct. The plungers are urged downwardly by springs 14 and normally the top end 16 of the plunger makes electrical contact with a part 17 of the rigid form 2. In the working position with no faults on the container base the plungers are pushed upwardly and break the electrical circuit but with any faults at least one of the contacts remains closed.
Patent GB-1097490-A (GB)
Title: Improvements in or relating to corrosion-inhibitors
Inventor: CHIDDIX MAX EUGENE
IPC: A61K31/00
Filed: 1966-09-30
Abstract: A corrosion inhibitor for an acid solution e.g. hydrofluoric, phosphoric, sulphuric, hydrochloric, sulphamic, oxalic or citric acids consists of a compound of the group (1) and (2) where R and R' are H or alkyl of 1 to 6 C atoms, and X is H, R, ROH, OR, phenyl, phenyl substituted R, R-substituted phenyl, OR substituted phenyl or OR-substituted R, so long as one of X, R and R' are other than H.ALSO:Preparation of compounds of the formulae <FORM:1097490/C2/1> and <FORM:1097490/C2/2> wherein R and R1 are chosen from hydrogen and alkyl of 1-6 carbon atoms inclusive and X is hydrogen, .R, .R.OH, .OR, phenyl, phenylsubstituted R, R-substituted phenyl, OR-substituted phenyl or OR-substituted R, with the proviso that one of X, R and R1 is other than hydrogen by reacting propargyl alcohol or a suitably substituted propargyl alcohol with an appropriate epoxy compound in the presence of a basic catalyst, e.g. a strong ion exchange base, or an acid catalyst, e.g. a Lewis acid, respectively. The reaction of propargyl alcohol with styrene oxide, propylene oxide and butylene oxide in the presence of boron trifluoride and with styrene oxide and butylene oxide in the presence of a quaternary ammonium containing resin in the hydroxyl form is described.  The action of styrene oxide on 3,5 dimethyl-1-hexyn - 3 - ol, 3 - methyl - 1 - pentyn - 3 - ol and 3 - methyl - 1 - butyn - 3 - ol in the presence of boron trifluoride is also exemplified.  Monopropargyl glycerol is obtained by the hydrolysis of glycidyl propargyl ether.