baber/WOPTO huggingface dataset:
Patent GB-819781-A (GB)
Title: Improvements in and relating to tarnish-resisting materials
Inventor: STROUD EDWARD GEORGE
IPC: C23F15/00
Filed: 1954-08-31
Abstract: 819,781. Tarnish - resisting paper &c. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 31, 1955 [Aug. 31, 1954; June 1, 1955], Nos 25269/54 and 15734/55. Class 96. [Also in Group XVII] Tarnish-resisting paper, e.g. jewellers' tissue for wrapping silver &c., strawboard or millboard, for protecting metals from being tarnished by sulphur compounds, is made by coating or impregnating a web of paper &c., with at least 2 per cent by weight of chlorophyll or a substituted chlorophyll wherein the phytyl alcohol residue and a methyl group have been substituted, at least in part, by the residue of a straight-chain alcohol having the formula CnH 2n +  1 OH where n is 12, 14, 16, 18 or 20, applied in the form of a solution, the solvent then being evaporated. The chlorophyll may be water- or oil-soluble and may be, or include, sodium-, sodium-copper-, or sodiumpotassium-copper-chlorophyllin. The solution may contain sufficient non-corrosive wax, e.g. cetyl alcohol or ceto-stearyl alcohol and tannic acid to give to the paper the following relative proportions by weight : chlorophyll 1-2, wax 3-12, tannic acid 1-6. The solution may also contain an alkaline substance or an organic base. For example, solutions containing watersoluble chlorophyll may also contain borax or an alkali metal hydroxide, carbonate or bicarbonate such as sodium carbonate or bicarbonate. The paper may contain from 60 to 160 per cent of an alkali metal bicarbonate computed on the weight of chlorophyll. Solutions containing oil-soluble chlorophyll may also contain a primary, secondary or tertiary amine, an amino-alcohol such as mono-, di- or tri-ethanolamine, or morpholine. Water-soluble chlorophyll may be dissolved in aqueous ethyl alcohol. Oil-soluble chlorophyll may be dissolved in benzene, toluene or isopropyl alcohol, e.g. mixed with water when tannic acid is also to be taken into solution.
Patent GB-205653-A (GB)
Title: Improvements in steering hand-wheels for motor-cars and the like
IPC: B62D1/04
Filed: 1922-09-19
Abstract: 205,653. Read, H. A. Sept. 19, 1922. Hand-wheels, steering, for motor vehicles are formed with a major portion integral with the hub and a minor portion pivoted thereto to facilitate access to the driver's seat. The wheel may be specially made, as shown in Fig. 1, with a segment 5 pivoted at 7 to the main segment 1, or a segment may be cut from an existing wheel', as shown in Fig. X, and replaced by a fitting having a similar segment 5<c> pivoted thereto. The movable segment is secured in its normal position in the plane of the wheel by a bolt or bolts.
Patent GB-1192915-A (GB)
Title: Production of Polyurethanes
IPC: C08G18/16
Filed: 1966-06-07
Abstract: 1,192,915. Polyurethanes. AULT & WIBORG Ltd. (Chemical Products Corporation). 7 June, 1967 [7 June, 1966], No. 25417/66. Heading C3R. Polyurethanes are prepared by reacting a polyisocyanate with a compound containing a plurality of hydroxyl groups in the presence of an organo-mercury salt of a substituted succinic acid of the general formula wherein each of R and R<SP>2</SP> is an organic group which is linked to mercury through a carbon atom and R<SP>1</SP> is an aliphatic hydrocarbon group having at least 8 carbon atoms. The polyisocyanate may be used as such or in the form of a prepolymer with a diol or polyol. Preferred compounds containing hydroxyl groups are polyesters, polyesteramides and polyethers. Suitably, the organo-mercury salt is used in combination with a conventional amine catalyst. In specific examples mixtures of bis-(phenylmercury) dodecylsuccinate and morpholine and bis-(naphthylmercury) dodecylsuccinate and N- ethyl morpholine are used as catalysts. The reaction mixture may also contain fillers. Reference has been directed by the Comptroller to Specification 1,053,383.
Patent GB-208252-A (GB)
Title: An improved tool or apparatus for truing up valves and valve seatings
IPC: B23C3/05
Filed: 1922-09-21
Abstract: 208,252. Chatham, J., and Coleman, J. A. Sept. 21, 1922. Portable turning- apparatus; cutters and cutter bars.-A device for trueing valves and valve seatings comprises a member a having a slotted conical portion adapted to receive three or more cutters b each having two parallel cutting edges. For trueing the seating the member a is fitted with a guide d bored to receive the valve stem and a member c provided with serrated grippers e which grip the valve stem through the engagement of their ends with the cutters. Trueing of the seat is then effected by rotating the valve under pressure by a screw driver &c. For trueing the valve, the stem is guided in V-grooves in upper and lower guide blocks g which are recessed to engage flats on the member a so as to hold the cutters against rotation. The cutting is effected by revolving the valve by a wrench pressure being exerted on the valve head by the screw of a clamp the arms of which are located in vertical V-slots in the guide blocks.
Patent GB-1059276-A (GB)
Title: Improved pesticidal compositions
IPC: A01N25/22
Filed: 1964-06-19
Abstract: A pesticidal composition having a prolonged active life and an enhanced stability, comprises a biodcidal organic phosphoric acid ester as active ingredient, finely dispersed silicic acid as vehicle, and a hydroxyquinoline as stabiliser.  The active ingredient is preferably a compound of the formula: <FORM:1059276/A5-A6/1> wherein R and R1 each represents a C1C5 alkyl radical, R11 represents a hydrogen atom or a methyl group, V, X1 and Z each represents an oxygen or sulphur atom, and Hal represents a halogen atom, or an ester that can be derived from a compound of the above formula by saturating the double bonds with halogen atoms.  The composition may additionally contain active carbon, an antioxidant, a wetting agent, an adhesive or a further pesticide.  The compositions, in particular those which contain a homologue of dichlorovinyldimethyl phosphate, are also suitable for use as anthelmintics.
Patent GB-259976-A (GB)
Title: Improvements relating to stereotype-plate casting apparatus
IPC: B41D3/00
Filed: 1926-10-14
Abstract: 259,976. Schnellpressenfabrik Frankenthal Albert et Cie, Akt.-Ges. Oct. 14, 1925, [Convention datej. Stereotype, casting. Relates to means for heating the metal supply channels in stereotype casting machines. The molten metal is delivered from the melting-pot 1 through passages 4, 5 to the moulds 6, 7 by a pump 3, and passages 10, 11, adapted to be partly or wholly closed by flaps 33, are provided for returning excess metal to the pot. The passages 10, 11 and the ends of the passages 4, 5 are located in chambers 17, 16 respectively through which part of the combustion products from the furnace. 18 can be led. If the chambers are not to be heated, a flap 27 is closed and the combustion products pass around the pot 1 to the discharge duct 26. When the flap 27 is open, part of the combustion products pass directly into the chamber 16, through a pipe 29 into the chamber 17 and thence to the discharge duct 26. A flap may also be provided in the main passage round the pot to prevent heating of the pnt.
Patent GB-771816-A (GB)
Title: Improvements in or relating to calculating machines
IPC: G06C7/06
Filed: 1955-09-07
Abstract: 771,816. Calculating-apparatus. FELT & TARRANT MANUFACTURING CO. Sept. 7, 1955 [Sept. 22, 1954], No. 25629/55. Class 106 (1).  A calculating-apparatus has provision for adjustment of the amount key touch, comprising a manually adjustable cam adapted to control the initial tension simultaneously in all of separate ordinal key return springs. The invention is applied to a powerdriven key responsive machine of the type described in Specification 344,868 comprising columns of amount keys 25 and, associated with each column, a key-depressed parallel-motion linkage whereby a hook 51 is engaged with an actuator wheel 62 and a sector 29, connected with the hook, is rocked under control of the depressed key to enter the digit value into an accumulator 38. The parallel-motion linkage comprises an upper keyengaged bar 41 pivotally carried by levers 44 and 45, a spring connected between the bar 41 and lever 44 providing the main resistance to key depression. In the present machine, this spring is replaced by a spring 201 connected at one end to a known key-locking bar 101 pivoted at 103 to the upper ends of the levers 44 and 45, and at the other end to an arm 204 secured to a transordinal shaft 205. An arm 206 at one end of this shaft carries a roller 207 engaged by the cam end of a slide 209. Longitudinal adjustment of this slide by means of a finger piece 216 on the key plate results in rocking of the shaft 205 and simultaneous adjustment of the initial tension in all the springs 201. A detent 218 engages teeth 219 in the slide 209 to retain it in adjusted position. The key frame is removable and carries the slide 209 with it, the arm 206 then abutting an end stop 24.
Patent GB-409573-A (GB)
Title: Improvements in or relating to advertising device for use in connection with postal letter-boxes
IPC: C21B3/06
Filed: 1933-09-15
Abstract: 409,573. Advertising on letterboxes. ALTMANN, W., 1, Wilhelmsaue-Schoelerpark, Wilmersdorf, Berlin. Sept. 15, 1933, No. 25647. Convention date, Sept. 26, 1932. [Class 3 (ii).] A letter-box B is provided with a detachable hood A comprising a frame a supporting transparent plates c behind which are mounted, in frames d, transparent plates c<1> bearing advertisements which are illuminated by lamps i. The top f of the hood, hinged at f and secured by a lock at h, is provided with ventilation holes g, and the bottom b is provided with an electric and heat insulating lining b<1>, e.g. of asbestos.
Patent GB-184091-A (GB)
Title: Improvements in or relating to sole-levelling machines
IPC: A43D89/00
Filed: 1921-09-28
Abstract: 184,091. Denne, M. T., and Gimson Shoe Machinery Co., Ltd. Sept. 28, 1921. Sole-levelling. - Relates to work supports for sole-levelling machines of the kind described in Specifications 17939/09 and 22849/10, wherein the last is clamped upon a pin and toe rest by heel-clamping jaws geared together on the upper end of a lever and having between them a flexible connection, the jaws and connection being forced against the back of the heel by a movement of the lever, and consists in actuating the lever to clamp the last by a sliding wedge forced between a part of the lever and an adjacent support by a pinion engaging rack teeth on the wedge. As shown, the lever 1 is actuated by a wedge 12 forced between a roller 10 on the lever and an adjacent roller 15 by a pinion 7 operated by a hand-wheel and engaging teeth 14 on the wedge.
Patent GB-698548-A (GB)
Title: Improvements in the distillation of tall oil
IPC: C09F1/00
Filed: 1950-10-23
Abstract: Tall oil is subjected to two-stage fractional distillation under reduced pressure (below 20 mm. Hg) and in the presence of steam.  The bulk of the fatty acid content of the oil is taken overhead in the first stage; and the bottoms from the first stage are separated, in the second stage, into residual fatty acids and resin acids as two separate distillates, a pitch together with other non-volatile components as residue.  The oil is preferably distilled in layers of less than 3 cm. thickness; and the rate of flow is adjusted so that the time-of-residence in <PICT:0698548/III/1> the apparatus is less than 15 minutes.  Tall oil containing 45 per cent resin acids, 45 per cent fatty acids, 2 per cent hydroxy-acids and 8 per cent unsaponifiable matter, is supplied through line 1 into fractionating column 2, and through line 23 into still 3.  The oil supplied through line 1 is uniformly distributed over the whole crosssection of the column.  The still 3 is supplied through line 4 with high-pressure wet steam.  The column is maintained under a pressure less than 20 mm. Hg. by condensers (not shown) connected to pipe 12.  The head of the column is maintained at about 200 DEG C by a dephlegmator (not shown). The overhead vapours are passed to cooler 6, maintained at about 150 DEG -180 DEG C, wherein C18 fatty acids are condensed; the condensate is collected in container 7.  The uncondensed vapours pass-on to cooler 9 wherein C18 fatty acids are condensed. The lower fatty acids and steam are led-off to further condensers through pipe 12.  The residue from still 3 is fed through pipe 13 into the still 14 of column 16, which is also maintained under a pressure less than 20 mm.  Steam at about 290 DEG -310 DEG C is passed into the still 14 through pipe 15, and the head of column 16 is maintained at 190 DEG -200 DEG C.  Residual fatty acids are withdrawn from the head of column 16 through pipe 17, pure resin acids are run-off through pipe 20, a non-volatile residue is drawn-off through pipe 22.  The residual fatty acids may be fed to the apparatus wherein fractional condensation of the bulk of the fatty acids is being effected. Specification 640,244 is referred to.
Patent GB-693302-A (GB)
Title: Improvements relating to domestic fuel bunkers and like containers
Inventor: WIMPENNY GEORGE
IPC: F24B15/04
Filed: 1950-10-23
Abstract: 693,302. Coal bins. STOPPER MANUFACTURING CO.. Ltd. Aug. 24. 1951 [Oct. 23, 1950]. No. 25735/50. Class 20(i) . A detachable door unit for a domestic fuel bunker comprises a front part 4 having a door 11 similar to that described in Specification 458,927, side plates 6 extending backwardly from the front 4 and carrying vertical guides 9 and downwardly and backwardly sloping rests 10 for the door 11 when in its open position, a baffle plate 8 attached to the front 4 above the rests 10, and a downwardly sloping ramp 7 extending inwardly from the front 4 under the door 11. To open the door 11, it is raised slightly, swung about pins 13 on the guides 9 and then slid inwardly on the rests 10. The unit is adapted to be fitted into existing bunkers.
Patent GB-487769-A (GB)
Title: Process for the production of multi-colour pictures having a sound record
IPC: G03C7/24
Filed: 1936-09-22
Abstract: 487,769. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) Sept. 22, 1936,No. 25740. [Class 98 (ii)] Multi colour originals or component colour records are copied on to multi layer photographic material having several superimposed silver halide layers which contain colour formers fast to diffusion and the material subjected to colour development. Suitable colour formers are described in Specifications 458,400, 465,823, 475,191, and 479,838. The multi colour original may have been itself produced by colour development, by imbibition printing, by the Indigosol process as in Specification 345,575, by the dyestuff bleaching out process or by the silver bleaching out dye process. Lenticular negatives may also be used. After development, the undeveloped silver halide is not fixed, and a sound record printed on the margin. The sound track is developed in black and white, e.g. by hydroquinone. The whole film may be immersed or the development may be confined to the margin by dipping in the developer. A resist may also be employed. The film is then fixed. In a modification, the picture area alone may be fixed and the sound record copied in the unaltered margin. As colour formers there are specified the dibenzidide of alpha-naphthoic acid for blue greon, 1-4 - palmitoyl aminophenyl - 3 - methyl - 5 - pyrazolone for purple and the benzidide of benzoylacetic acid ester for yellow. Para-amino-dimethylaniline is used as the colour developer.
Patent GB-623571-A (GB)
Title: Improvements in automatic lathes
IPC: B23Q5/34
Filed: 1946-08-28
Abstract: 623,571. Traversed headstock lathes. MANUFACTURE DE MACHINES DU HAUTRHIN SOC. ANON. Aug. 28, 1946, No. 25763. Convention date, Aug. 3, 1939. [Class 83 (iii)] The longitudinal displacement of the headstock of an automatic lathe is controlled by a cam 3 which rotates in a plane perpendicular to the axis of the headstock and acts through two levers 1, 9 arranged in perpendicular planes, the lever 1 transmitting the motion from the cam through a slide 6 to the lever 9. The lever 9, pivoted at 10, has a slide along which a bushing 16 acting on the headstock 17 can be fixed so as to vary the displacement of the latter. The mechanism may be loaded by a spring or a weight to maintain the active components in co-operative contact. In an alternative construction, co-axially-mounted twin cams are used, the resulting profile actuating the slide through a lever having two components pivoted on a common shaft and adjustably connected by a screw.
Patent GB-987751-A (GB)
Title: Copolymerisation process
Inventor: OSMOND DESMOND WILFRID JOHN
IPC: C08F20/62
Filed: 1960-07-25
Abstract: Copolymers of acrylic or methacrylic acid or an ester, amide or nitrile thereof with maleic anhydride are prepared by a process in which the monomers are copolymerized in an organic liquid which is non-polar relative to the copolymer so that the copolymer is insoluble therein, polymeric material precipitated from the liquid being maintained in dispersed stabilized particulate form and copolymerization being continued on the surface of the dispersed polymeric particles.  The particle may be stabilized by a surface-active agent, e.g. ethylene oxide condensates with long chain alcohols and acids, or preferably a block or graft copolymer of which one constituent is solvated by the non-polar liquid and the other is compatible and precipitated with the copolymer.  The block or graft copolymer may be formed in situ from the acrylic monomer and a natural or synthetic rubber or the methacrylate of a styrene/allyl alcohol copolymer or an allyl alcohol terminated polylauryl methacrylate.  Specified polar liquids are hydrocarbons, diisobutyl ketone, lauryl oleate and cetyl laurate. Copolymerization may be effected in the presence of organic peroxides and azo compounds.  In Examples: (1) methyl methacrylate and maleic anhydride are copolymerized in the presence of white spirit, xylene, crepe rubber and benzoyl peroxide; (2) methyl methacrylate and maleic anhydride are copolymerized in the presence of white spirit, degraded rubber and benzoyl peroxide; (3) methyl methacrylate, ethyl acrylate and maleic anhydride are copolymerized in the presence of white spirit, liquid polybutadiene, benzoyl peroxide and lauryl mercaptan; (4) methyl methacrylate and maleic anhydride are copolymerized in the presence of kerosene, cetyl alcohol/ethylene oxide condensate and azo bis-isobutyronitrile; and (5) a stabilizer precursor is prepared by copolymerizing lauryl methacrylate and ethylene glycol monomethacrylate with benzoyl peroxide in petroleum and reacting the product with methacryloyl chloride; and methyl methacrylate, b -ethoxyethyl methacrylate and maleic anhydride are copolymerized in the presence of petroleum, the stabilizer precursor and azo bis-isobutyronitrile.  Specification 941,305 is referred to.
Patent GB-1199343-A (GB)
Title: Improved Waveguide Water Loads for R.F. Energy
Inventor: ROSSINI GIORDANO ROMENIC
IPC: H01P1/26
Filed: 1968-05-29
Abstract: 1,199,343. Waveguide dissipative loads. VARIAN ASSOCIATES. 29 May, 1968 [29 June, 1967], No. 25788/68. Heading H1W. A waveguide water load for absorbing electromagnetic wave energy includes an input waveguide separated from the water load by a radiation-permeable but fluid-impermeable dielectric window, the water load including a fluid flow channel formed by an H-plane septum axially spaced from the window together with fluid input and output parts, the arrangement being such that the fluid coolant flows in opposite directions on the two sides of the septum, and in a curvilinear flow pattern in the vicinity of the window. As shown, the window 8<SP>1</SP> is sealed between the waveguide 7 and the water load 9 having coolant input and output ports 18, 19 at its further end, which ports communicate with opposite sides of the H-plane septum 12 via passages formed by the E-plane septum 17 and sloping ramps 15 and 16. The window is preferably n#g/ 4  thick where n is an odd integer; is of alumina, sapphire, or beryllia; projects into the water load as shown to minimize its temperature rise; and has a dielectric constant E 1  such that E 1  = E 0 E 2  where E 0  and E 2  relate to air and to the coolant respectively, to minimize reflection. Preferably, an inductive iris is disposed in the waveguide spaced from the window to increase the bandwidth and cancel residual reflections from the window; a formula for the window-iris spacing is included.
Patent GB-677992-A (GB)
Title: Improvements in electronic tubes
IPC: H01J23/083
Filed: 1948-10-04
Abstract: 677,992. Particle accelerators. PHILCO CORPORATION. Oct. 4, 1948 [March 20, 1948], No. 25849/48. Class 39 (i). [Also in Group XL (b)] A charged-particle accelerator includes a helical waveguide 33 into which high-frequency energy may be coupled and a particle gun 22 ... 26 for generating a particle beam and directing it axially of the waveguide, the pitch of the waveguide progressively increasing in the direction of movement of the beam to accelerate the particles as a result of the increasing axial velocity component of the travelling wave produced by the increasing pitch. As shown, the high-frequency energy is generated in the device itself by a similar waveguide 32 of uniform pitch acting as a travelling-wave oscillator and arranged between the gun and the accelerating guide, and coupled to waveguide 33 by loop 65 passing through partition 70. Both guides are formed from helicoidal strips contained within a conducting cylinder 31, guide 33 being terminated by a tapered block 61 of lossy material. The accelerated particles may be allowed to fall on an electrode 27 to provide a high voltage across condenser 75, or upon an X-ray target or a substance to be modified by bombardment with electrons. In an application to a high-voltage cathode-ray tube, Fig. 2 (not shown), the structure including the two waveguides 32, 33 is accommodated in the neck of the tube and the accelerated electrons are focused and deflected over a fluorescent screen, thus permitting high voltage operation without external sources of dangerously high voltage. Specifications 677,986, 677,990 and 677,991 are referred to.
Patent GB-721417-A (GB)
Title: Heterocyclic compounds and methods for obtaining the same
IPC: C07D295/13
Filed: 1952-10-15
Abstract: The invention comprises amides, ureides, and sulphonamides of 1-phenyl-4-alkyl-piperazines obtainable by converting the corresponding 4-alkyl-amine into the amide, ureide or sulphonamide by means of acids, acid anhydrides, chlorides or esters, or alkyl isocyanates or alkali cyanates, or sulphonyl chlorides.  In examples, 4-phenylpiperazines substituted in the 1-position by 3-aminopropyl-, 5-aminoamyl-, and 2-aminopropyl groups are caused to react with ethyl formate, methyl dichloroacetate, methane-sulphonyl chloride, benzoyl chloride, formic acid, acetic anhydride, potassium cyanate, cyclohexylcarboxylic acid, 6-cyclohexylcaproic acid, phenylacetic acid, and benzene sulphonyl chloride, to give the corresponding amides, ureide or sulphonamides.  The melting points of some other products including a propionamide are given.
Patent GB-281611-A (GB)
Title: An improved process for the production of the cyanamides of the alkaline earth metals and magnesium
IPC: C01C3/18
Filed: 1927-09-30
Abstract: 281,611. Caro, N., and Frank, A. R., (Assignees of Stickstoffwerke Ges.). Dec. 2, 1926, [Convention date]. Addition to 279,812. Cyanamides of alkaline earth metals including magnesium are prepared by treating oxides or compounds such as formates, carbonates &c., which form oxides on heating, with gaseous mixtures such as ammonia and carbon monoxide which tend to form hydrocyanic acid. The treatment is carried out at 400-850 C. and at ordinary or increased pressure. The addition of water or the use of moist materials increases the formation of cyanamide. The presence of iron is avoided by using apparatus formed of ceramic materials, zinc &c. and by eliminating iron carbonyl &c. from the gases. Hydrogen sulphide or carbon bisulphide may be added to the gases or calcium sulphide or sulphate to the solid materials, the sulphur serving probably as a poison for the metals 'which act as catalysts to produce decomposition.