baber/WOPTO huggingface dataset:
Patent GB-1144252-A (GB)
Title: Electric pulse generating circuit arrangement
Inventor: KLOOCK DIETRICH
IPC: H03K3/57
Filed: 1966-03-21
Abstract: 1,144,252. Semi-conductor pulse circuits. ELEKTROPROJEKT BERLIN, VEB. 21 March, 1966, No. 12307/66. Heading H3T. In a pulse generator, a capacitor 6 is charged via an inductor 14 and diode 4 and discharged via a controlled rectifier 5 when the charging current falls below a predetermined level. A half period of the charging oscillation is preferably greater than the time between two discharge pulses. Capacitor 6 may be protected against over-voltage by a further controlled rectifier 15, triggered by a voltage-responsive device 16 and. inductively coupled to inductor 14. Further over-voltage protection is provided by a non-linear resistor 17 or glow discharge tube, arranged to disconnect the source 1.
Patent GB-1450834-A (GB)
Title: Method of manufacturing a material for producing paint film  and other surface coatings having a hammer-finish effect
IPC: C09D5/28
Filed: 1974-03-20
Abstract: 1450834 Coating compositions DRYNAMELS Ltd 20 March 1974 12324/74 Headings C3B C3P and C3R A coating with a "hammer finish" effect is made by: heating a mixture of (R) a coatforming binder, being an epoxy, acrylic, or polyester resin; 0À0-1À0% wt., based on (R), of (A) a flow-promoting and pinhole-inhibiting additive based on an acrylate polymer or copolymer; and #1 pigment, so as to melt (R) and blend the other ingredient(s) therewith; cooling the resultant blended mixture; and mixing 0À005-1À0% wt., based on (R), of (A) into the mixture. Part of (R) may be used to assist incorporation of (A), e.g. by forming a powdered (A)/(R) mix, which may be of particle size 10-600 Ám. 0À1-5À0% wt., based on the mixture, of Al powder may be added, e.g. after the cooling step. (A) may be an acrylate/vinyl ether copolymer.
Patent GB-112111-A (GB)
Title: Improvements in or relating to Wire and like Cutting Devices.
Inventor: LEA WILLIAM CHATER
IPC: B23D29/02
Filed: 1917-08-30
Abstract: 112,111. Lea, W. C. Aug. 30, 1917. Cutters. - Wire-cutters, pruning-shears, &c. comprise a pair of cutting-jaws 1, 2 pivoted together at 3 and formed with crossed tail-pieces 4, 5 pivoted at 6, 7 to levers 8, 9 pivoted at 10, 11, to a connecting-link or pair of links 12, the pivots 6, 7 being below the pivots 10, 11 as shown in Fig. 1. The ends of the levers are preferably cylindrical and toothed so as to gear one with the other. The levers may be folded back as shown in Fig. 4 to reduce the size of the device for carrying. The levers 8, 9 are provided with suitable handles 16, 17.
Patent GB-923569-A (GB)
Title: Optical image transmission systems
IPC: G02B6/06
Filed: 1960-04-08
Abstract: 923,569. Television. FRANKLIN INSTITUTE OF THE STATE OF PENNSYLVANIA. April 8, 1960 [April 10, 1959], No. 12522/60. Class 40 (3). [Also in Group XX] In an image transmission system the position of the image relative to the " input " end of the system is continuously and repetitively changed and a corresponding motion given to the " output " image to compensate for that effected at the " input " end. This is stated to result in an improved " output " image particularly where the transmission system utilizes fibre optics or a television transmission link. An embodiment utilizing a fibrescope system is shown in Fig. 1 and comprises a light transmitting fibre bundle 10 across the " input " end 14 of which an image of an object 12 is moved by changing the effective thickness of a refracting element 18a, such motion being compensated by effecting a similar shift to the light emerging from the " output " end 15 by means of a variable thickness refracting element 18b similar to 18a. The latter comprise fixed refractive members 19 and movable refractive members 20, the latter being moved from the positions shown at 20a, 20b to the positions indicated by similarly referenced chain lines according as fluid (preferably clear and of the same refractive index as members 19, 20) enters or leaves the elements under the control of a pump 24 ... 27. The effective thickness of the elements 18a, 18b, is thus varied and an up-and-down motion of the image light is produced. In an alternative arrangement also utilizing a fibrescope 10<SP>1</SP> (Fig 4) a circular motion of the " input " and " output " light beams is produced by rotation of refracting elements 26a, 26b. Fig. 6 shows an embodiment utilizing a television transmission link in which an up-and-down motion of the " input " and " output " light beam is produced by synchronously rotating refractive prismatic wheels 57, 58 having a thickness varying circumferentially from a minimum to a maximum over 180 degrees and then back to a minimum over the next 180 degrees. Instead of refracting elements such as 57, 58, rotating reflecting elements producing a varying angle of reflection may be employed (Fig. 7, not shown).
Patent GB-687080-A (GB)
Title: Improvements in or relating to looms
IPC: D03D49/06
Filed: 1950-05-19
Abstract: 687,080. Vibrating warps in looms. SIDDLE, H. July 3, 1951 [May 19, 1950], No. 12570/50. Class 142(ii) Lease rods 11 are preceded by rods 1 mounted in bearings and connected to the sley by a rod 9, movement of the sley, rocking the rods 1 to agitate and separate the warp threads.
Patent GB-344273-A (GB)
Title: Improvements in or relating to high frequency valve circuits
IPC: H03B5/18
Filed: 1930-04-23
Abstract: 344,273. Valve circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. April 23, 1930, No. 12594. Convention date, June 1, 1929. [Class 40 (v).] A valve circuit for high frequencies comprises an oscillating circuit inductance coil composed of two conductors, one connected to the grid and the other to the anode, the grid conductor being extended parallel with the anode conductor as far as the anode connection point and the anode conductor being similarly extended parallel to the grid conductor so that the distributed capacity between the conductors is so large that they are practically equivalent to one conductor at the working frequency. The Figure shows an oscillator arrangement in which the whole circuit is bifilar, the conductors being of copper strips separated by mica ; the anode and grid direct current connections are made through a movable double slider. The filament, grid and anode leads may be wound together to form a choke, the " live " ends of which may be earthed to the screening transmitter case through condensers K1 .. K4; similar earthing may be provided through condensers K5 .. K8. The object of the invention is to obviate the difficulty of connecting both grid and anode direct-current feeds to a point of zero alternating-current potential in the oscillatory circuit, which is necessary to prevent high-frequency currents from passing along the feed lines.
Patent GB-1301801-A (GB)
IPC: B01J13/20
Filed: 1971-05-03
Abstract: 1301801 Treating microcapsules NATIONAL CASH REGISTER CO. 3 May 1971 [14 May 1970] 12641/71 Heading B8C Microcapsules having walls comprising organic polymer material and made by any of the conventional liquid/liquid phase separation techniques, are rendered more hydrophobic by treatment with an organosilicon compound having groups reactive with the polymer material. Treatment may be carried out on the finished microcapsules or may be incorporated into the manufacturing process. The method is particularly useful for treating microcapsules which have been subjected to a treatment with components of a condensation polymer which is formed in the interstices of the capsule walls to render them less permeable. In this case, the treatment may be combined with the step of forming the condensation polymer. Examples of suitable capsule wall material are: gelatin, gelatin/gum arabic, succinylated gelatin, carrageenan, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, hydrolysed copolymers of methyl vinyl ether or ethylene and maleic anhydride, melamine - formaldehyde resins, starch, zein and polyethylene oxide. Suitable organosilicon compounds are: γ-glycidoxypropyltrimethoxy silane; N - (trimethoxysilylpropyl)-ethylene diamine and silanes containing epoxy, amino and vinyl groups.
Patent GB-206471-A (GB)
Title: Liquid-tight coating on porous bodies, particularly applicable on the porous bodies of electrodes of batteries or electrolysing apparatus
IPC: C25B11/00
Filed: 1923-05-11
Abstract: 206,471. Soc. Anon. le Carbone. Nov. 3, 1922, [Convention date]. Addition to 198,656. Electrodes.-Porous bodies such as electrodes for batteries or electrolytic apparatus are protected against the entry of liquids by means of a sheet of a pectised colloid such as that known under the registered trade mark cellophane, or asbestos fabric impregnated with colloidal silica, one or more of the sheets being wrapped round the porous body and held in place by a flexible band. To ensure good contact between the sheets and the porous body an intervening layer of a plastic electrically conductive material such as powdered plumbago moistened with water may be used.
Patent GB-655277-A (GB)
Title: Improvements in the production of nitrogen-containing polymers
IPC: C08G73/08
Filed: 1948-05-10
Abstract: Polyaminotriazoles are obtained by heating together in a mobile state until a polymer is obtained a mixture comprising a hydrazine, a dicarboxylic acid and a diamine or substance yielding same on hydrolysis, the components being proportioned so that the sum of the amino groups and hydrazine moles present exceeds the number of carboxylic groups, and the number of amino groups does not substantially exceed the number of carboxylic groups, the amount of hydrazine present being sufficient to give a polymer having affinity for cotton dyestuffs.  Preferably there is 5-20 per cent excess of amino and hydrazine moles.  Polymers are thus obtained having terminal hydrazide groups.  The diamine and dicarboxylic acid may be replaced by the corresponding polyamide.  The polymers may be melt spun by extrusion at a temperature about 10 DEG  C. above the melting-point of the polymer, which is for this purpose preferably plasticized with sulphonamides, phenol, urea, thiourea, &c.  When used for coating compositions cellulose acetate, acetobutyrate, oxyethyl cellulose, benzyl cellulose, &c. may be added.  In examples: (1) 200 parts dimethyl adipate and 300 parts hexamethylene diamine were refluxed in 162 parts methanol for 3 hours, the excess being then removed by heating at 240 DEG  C. in a current of nitrogen, 400 parts of the waxy solid obtained were mixed with 200 parts adipic dihydrazide and heated under nitrogen to 200-220 DEG  C.; the clear melt was heated for 1 hour at 240 DEG  C. and then for a further 2 hours under 2 mm. pressure and was then drawn into fibres which dyes to a deep red or blue in 2 minutes with Durazol Fast Scarlet or Clorazol Sky Blue FF; (3) as in (1) the adipic acid being replaced by sebacic dihydrazide; (4) 300 parts of hexamethylene diammonium adipate and 50 parts 60 per cent aqueous hydrazine were heated in an autoclave for 3 hours at 210 DEG  C. and 150 pounds pressure. Specifications 612,609, 613,020, 627,124 and 655,276 are referred to.
Patent GB-1392407-A (GB)
Title: Coupling device
IPC: F17C13/00
Filed: 1973-03-16
Abstract: 1392407 Releasable fastenings ANTARGAZ SA DE DISTRIBUTION DE GAZ LIQUIDES DE PETROLE 16 March 1973 12835/73 Heading E2B [Also in Divisions F2 and F4] In a coupling device for a pressurized gas cartridge, having a peripheral bead B surrounding its gas outlet valve, a sleeve 10 is resiliently urged to a position in which its radial grippers 10b are backed by body 9 and thereby held in locking relationship with bead B. Handle 14 may be used as a lever (the flange 15 constituting a fulcrum) to displace sleeve 10 against the action of compression spring 11, thus allowing grippers 10b to move radially inwardly and release bead B. The sleeve 10 may be of P.T.F.E. The coupler may support a gas cartridge (C Fig 1, not shown) beneath the support frame of a camping gas stove base.
Patent GB-906785-A (GB)
Title: Wire takeup block
IPC: B21C1/14
Filed: 1961-04-10
Abstract: 906,785. Winding and reeling; drawing wire. VAUGHN MACHINERY CO. April 10, 1961 [Nov. 4, 1960], No. 12849/61. Class 83 (4). Wire handling apparatus comprises a hollow stationary take-up block; a rotatable flyer and drive means operative to rotate the flyer about the block to wrap wire around one end of the block for removal in coil form from the other end of the block; and a fluid circulating and cooling system mounted on the block and operative to circulate fluid coolant through the block thereby to extract heat from it and from the wire wrapped around it and to cool the thus heated fluid for recirculation through the block. Heated wire W, for eaxmple heated consequent upon a drawing action, passes through a bore 15 of a rotating flyer shaft 2, over pulleys 21, 19 carried by a flyer 16 to be laid around a take-up block 20 having a slightly tapered external surface. Thus the comolutions of wire wrapped on the block are moved axially therealong and on to a horn 31, which may comprise curved rods 32 secured at one end to the block 20, to fall therefrom to a drum. The block 20 is held stationary by a gear 25 thereon meshing with a pinion 26 on a shaft 27 journalled in the flyer 16 and carrying at its other end a pinion 28 rolling on a fixed gear 29. A rotary pump 42 on the block 20 and driven by the flyer shaft 2 circulates cooling fluid, e.g. water or oil from a reservoir 40 through a pipe 36 to a helical cooling passage 35 in the block. The heated coolant then passes through a pipe 37 to a radiator 38, comprising a finned tube 45 coiled inside a sheet metal housing 44 of the horn 31, and back to the reservoir 40. Cooling air may be blown from a housing 47 around the outside of the block 20 at 48 and through the block at 49, 50 over radiator tubing 45. Wire drawing dies may be disposed in advance of the take-up block assembly or a die may be mounted on the flyer 16 between the block 20 and pulley 19 or between the pulleys 19 and 21.
Patent GB-543194-A (GB)
Title: Improvements in and connected with automatic circuit breakers and similar electric switchgear
IPC: H01H83/22
Filed: 1940-08-12
Abstract: 543,194. Electrically released switches. CRABTREE & CO. Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. Aug. 12, 1940, No. 12869. [Class 38 (v)] A polyphase thermal release device capable of operating with a pre-determined time-lag on sustained balanced overloads and with shorter time-lag on unbalance, comprises a pair of slidable trip bars the movement of which produces tripping. The element for the phases and the ambient-temperature compensating element are in compartments b, b<SP>1</SP> in a base a. Each element comprises a nearly-cylindrical bi-metal element i, one end of which is bent outwards to form an arm i<SP>1</SP>, whereas the other end is secured at l<SP>1</SP> to a V-shaped lever l pivoted by means of a pin k in a sleeve h' in an insulating support h around which is disposed the heater coil g The arms l<SP>2</SP> of levers l extend into slots f<SP>1</SP> ir insulating trip bar f, the slots having wide parts f<SP>2</SP> through which pass the arms i<SP>1</SP> into rectangular slots j in a further insulating trip bar e which has an extension x engaging the trip means. Or balanced overload, Fig. 3, the arms i' tend to move e to the left, and l<SP>2</SP> to move f to the right and as the trip means restrain e, f moves until it strikes the ambient-temperature strip o act. ing as a stop, whereupon e is forced to the left to produce tripping. If unbalance occurs, one element remains unflexed and holds f agains movement, so that the other elements at once move e in the tripping direction, the width of slots j being such as to prevent interference by the unflexed arms i<SP>1</SP>. The strip o is fixed to one end of a pivoted lever v which is pulled by spring w<SP>1</SP> so that a pin u thereon engages an adjusting cam q on spindle r having an indicating knob s and plate. Lever v is pivoted at its top end, Fig. 1, to a plate w which can be adjusted bodily in the factory by a screw y so as to bring the strip o near to, or further from, the plate f, it being then sealed against further adjustment.
Patent GB-432599-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs
IPC: C09B29/06
Filed: 1934-04-28
Abstract: Azo dyes are made by coupling diazotized aromatic amines not containing sulphonic or carboxylic groups with N-arylaminonitriles not containing sulphonic or carboxylic groups and having the formula X(Y)NRCN, where R is a methylene group or a chain of methylene groups, the hydrogen atoms of which may be substituted by alkyl, aryl or aralkyl groups, X is hydrogen or an alkyl, hydroxyalkyl, aryl or aralkyl group, such as a methyl, ethyl, hydroxyethyl, phenyl or benzyl group, and Y is an aryl group, such as a phenyl, tolyl or naphthyl group, which may be substituted.  Specified amines from which the diazo compounds may be obtained are aniline, 4-nitraniline, o-toluidine, 2-amino-5-nitrophenol, 2-chloro-4-nitraniline, a -naphthylamine, and aminoazo dyes such as 4-aminoazobenzene and 4<1>-nitro-4-aminoazobenzene.  Specified coupling components are N-phenylaminoacetonitrile, a -N-phenylamino-a  - phenylacetonitrile, N - hydroxyethyl - N - phenylaminoacetonitrile, N-phenyl-b -aminopropionitrile, N-diphenyl-b -aminopropionitrile, N - phenyl - a - aminobutyronitrile, N-phenyl-g  - aminobutyronitrile, N - phenyl - N - ethyl-b -aminopropionitrile, N - ethyl - N - m - tolyl - b  - aminopropionitrile, N-a -naphthyl-b -aminopropionitrile, N - phenyl - a  - aminocaprylonitrile, and N - hydroxyethyl - N - m - tolylaminoacetonitrile.  The dyes are useful for dyeing cellulose esters and ethers or for colouring varnishes, spirit or nitrocellulose lacquers, stearin, paraffin wax, fats and oils in yellow, orange or red shades.  In the examples, (1) diazotized 4-nitraniline is coupled with N-phenyl-b -aminopropionitrile, N-ethyl-N-m-tolyl-b -aminopropionitrile, or N-a -naphthyl-b -aminopropionitrile; (2) diazotized 2-chloro-4-nitraniline is coupled with N-ethyl-N-phenyl-b -aminopropionitrile; (3) diazotized 4-nitraniline is coupled with N-phenylaminoacetonitrile or N-hydroxyethyl - N - m - tolylaminoacetonitrile; (4) diazotized 4-aminoazobenzene is coupled with N - ethyl - N - phenyl - b  - aminopropionitrile; (5) diazotized 5-nitro-2-aminophenol is coupled with N-ethyl-N-m-tolyl-b -aminopropionitrile.  Nitriles.  The specified a -aminonitriles are obtainable by the method of Knoevenagel (Berichte, 37, 4073 et seq.).  The specified b -aminonitriles are obtainable by the process of Specification 404,744.  N-Phenyl-g -aminobutyronitrile is obtainable by the method of Blank (Berichte, 25, 3042).
Patent GB-912454-A (GB)
Title: Improvements in or relating to the preservation of silage
Inventor: BACHMAN MARVIN CHARLES
IPC: A23K3/03
Filed: 1961-04-10
Abstract: A process for the preservation of silage comprises incorporating in the silage prior to storage the ferric, ferrous, manganese, magnesium, cupric, cuprous or cobalt salt of bacitracin.  A nutrient carbohydrate e.g. molasses or corn may also be added.
Patent GB-774994-A (GB)
Title: Improvements relating to automatic record player apparatus
Inventor: JR JAMES EDWARD VISTAIN
IPC: G11B17/02
Filed: 1954-11-15
Abstract: 774,994. Magazine gramophones. ADMIRAL CORPORATION. Nov. 15, 1954, No. 12892/56. Divided out of 774,993. Drawings to Specification. Class 40 (2). The Specification is substantially the same as 774,993 from which the present Specification is divided, but the claims refer to means by which switching off of the motor at the end of the last record is effected.
Patent GB-1517245-A (GB)
Title: Process of producing alkenylphenol polymers
IPC: C08F12/24
Filed: 1976-03-31
Abstract: 1517245 Polymerization of alkenylphenol monomers MARUZEN OIL CO Ltd 31 March 1976 12899/76 Heading C3P An alkylphenol is polymerized using a cationic initiator in solution in a saturated aliphatic nitrile or aromatic nitrile having a b.pt. below 200‹ C., the concentration of the alkenylphenol being 1 to 50% by weight relative to the nitrile. In the examples p- or m-vinylphenol or p-isopropylidenephenol are polymerized in solution in acetonitrile or propionitrile using BF3, VOCl3 or BF3 etherate as initiator.
Patent GB-685103-A (GB)
Title: Fungicidal compositions
IPC: C07D239/06
Filed: 1951-05-31
Abstract: A fungicidal composition comprises one or more derivatives of a tetrahydropyrimidine having at least nine carbon atoms in the molecule and an inert diluent or carrier, which is not a solvent for the active agent, with or without the further addition of other fungicides and/or insecticides.  The compositions may be in the form of (a) dusts especially with ion-exchange colloids such as clays (b) wettable powders (c) clay-mineral oil suspensions (d) emulsions in which a solution of the pyrimidine in a mineral oil or organic solvent is emulsified with an ionic or non-ionic wetting agent e.g. polyethylene glycol alkyl phenols, alkanolamines e.g. di- or tri-ethanolamine, soaps such as sodium stearate and sodium abietate and sodium petroleum sulphonates.  A preferred emulsifiable oil contains 4 to 30 per cent tetrahydropyrimidine, 0.5 to 10 per cent emulsifying agent, 0.1 to 1.0 per cent emulsifier improver (e.g. isopropyl alcohol, creosote, methyl ethyl ketone, diethylene glycol monomethyl ether) and balance hydrocarbon oil.  The tetrahydropyrimidines may be used in the form of their salts with e.g. benzoic, toluic, acetic, hydrochloric, sulphuric and phosphoric acids.  The tetrahydropyrimidines may be prepared according to Specifications 647,432 and 679,637, [both in Group IV (b)].  Many examples of derivatives of 1,2,3,4-tetrahydropyrimidine, 2,3,4,5-tetrahydropyrimidine and 3,4,5, 6-tetrahydropyrimidine are given.  Preferred fungicides are :-(a) 1,2,3,4-tetrahydropyrimidine derivatives containing 10 to 30 carbon atoms in the molecule and having at least six hydrocarbon radicals attached to not less than four nuclear carbon or nitrogen atoms e.g. 2,2-dimethyl-4,4,5,6-tetraethyl-1,2,3,4-tetrahydropyrimidine; (b) 2,3,4,5-tetrahydropyrimidine derivatives containing 9 to 30 carbon atoms and having at least 5 hydrocarbon radicals attached to not less than 3 nuclear carbon atoms e.g. 2,4-dimethyl-2,4,6-triakyl-2,3,4,5-tetrahydropyrimidine; and (c) 3,4,5,6-tetrahydropyrimidine derivatives containing 9 to 30 carbon atoms and at least 4 hydrocarbon radicals attached to at least 3 nuclear carbon atoms e.g. 2-decyl-4,4,6-trimethyl-3,4,5,6-tetrahydropyrimidine.
Patent GB-168947-A (GB)
Title: Improvements in and relating to methods of and means for producing alternating currents
IPC: H03B9/01
Filed: 1920-05-10
Abstract: 168,947. British Thomson - Houston Co., Ltd., (General Electric Co.). May 10, 1920. Thermionic oscillation generators.-In a method of producing high-frequency oscillations from direct or low-frequency pulsating current by means of a device comprising an electron-emitting cathode and an anode, the electron stream is controlled by a magnetic field produced by the current carried by the stream. In an example, a constant magnetic field, variable by the rheostat 11, is produced by the coil 9 in a thermionic tube 1, the cathode of which is connected through a choke 6, and the anode through a direct-current source 5, to an oscillatory circuit 7, 8, 13. The coil 7 is wound on the tube 1 with the coil 9, and its field produced by the electron current is superimposed on the constant field due to the coil 9. Oscillations are produced in the circuit 7, 8, 13 depending on its constants.
Patent GB-732431-A (GB)
Title: Improvements in or relating to methods of making building blocks
Inventor: DAVIE HUMPHREY BACHE CHRISTOPH
IPC: B28B19/00
Filed: 1950-05-23
Abstract: In the manufacture of a concrete block having a facing of stone pieces, the stone pieces are laid on sawdust in the bottom of a mould, and the mould filled with concrete and vibrated to consolidate the charge.  Some of the concrete may be subsequently chipped away so that the stone pieces stand proud.