baber/WOPTO huggingface dataset:
Patent GB-127942-A (GB)
Title: Improvements in or relating to the Supports or Mountings for Engines.
Inventor: CLARKSON THOMAS
IPC: F16M5/00
Filed: 1918-06-03
Abstract: 127,942. Clarkson, T. June 3, 1918. Casings; frames.-A motor for a road vehicle, such as r. tandem-cylinder internal-combustion or compound steam-engine with groups of cylinders inclined to one another, as described in Specification 127,941, is provided with lateral projections the outer ends of which form bearings engaging inwardly-directed trunnions secured to the side frames of the vehicle. The rear end of the motor is held centrally by a removable pin G secured to a cross-beam. In the engine described in the above-mentioned Specification, frames A, secured between the cylinders and the crank casing, are provided with projections B having bearings B' which engage the trunnions E.
Patent GB-571732-A (GB)
Title: An improved method of producing carbon black
IPC: C09C1/44
Filed: 1943-06-07
Abstract: 571,732. Carbon black. BRASSERT & CO., Ltd., H. A., and BRUTON, A. L. June 7, 1943, No. 9107. [Class 90] A method of producing carbon black comprises carbonising a substantially ash-free carbonaceous material in an oven preferably having a substantially horizontal bed, such as a so-called Knowles oven, e.g., of the kind described in Specification 492,836, [Group XII], until its volatile matter content is between 1 and 5 per cent., and then reducing the residue to a particle size such that 90 per cent. or more is below 10 microns diameter, the majority of the material being below 0.25 microns. Grinding may be carried out in a ball mill running in closed circuit with a series of cyclone separators or electric precipitators. The carbonaceous material used may be solid or liquid, for example, coal, pitch, tar oils, or an extract of coal. According to the Provisional Specification, the volatile matter is preferably reduced to 0.5 per cent. or less. Specification 102,645, [Class 90], also is referred to.
Patent GB-154839-A (GB)
Title: A clamping appliance for fixing the cemented extension of soles to the fronts of "louis heels"
IPC: A43D25/12
Filed: 1920-03-29
Abstract: 154,839. Young, C. A., and Wooding- ton, J. H. March 29, 1920. Heels, machines for.-A clamping-appliance for holding the cemented extension of soles to the fronts of " Louis heels comprises a two-part spring steel plate a, a<1> carrying a felt pad a<5> pressed against the front of the heel by a crossbar b. The cross-bar b forms one side of rectangular frame having side members b' and a pivoted rear cross-bar b<5>. The side members b<1> have pivoted thereto at c<1> duplicate levers e connected by springs e<3> with a sliding cross bar d carrying a felt pad d<2> engaging the back of the heel and clamped by a thumb-screw b<6> engaging the crossbar b<5>. The levers c are held in clamping position by pawls e<4> and carry at their lower ends pins e<6> engaging arms f<2> pivoted to the side-members b<1> and connected by springs f<1> with a curved pressure bar f engaging the plate a<1>. The end g<5> of the sole extension is held against the top of the heel by a plate c<4> pressed downwards by springs c<5> between the plate and a cross-bar c<1>.
Patent GB-234782-A (GB)
Title: A device for teaching number in combination, analysis, factors, and multiples
IPC: G09B19/02
Filed: 1925-04-06
Abstract: 234,782. Passmore, A. A. May 27, 1924, [Convention date]. Teaching arithmetic. -A device for teaching arithmetic consists of a tray a, Fig. 1, or a frame e, Fig. 6, divided into equal spaces by vertical lines which are numbered consecutively, and a number of movable blocks c made to varying lengths to the same scale to fit in the tray or slide in the frame. The blocks c are numbered in accordance with their length, and, as shown in Fig. 1, may be used to demonstrate the combinations of numbers which add up to 10, or to illustrate the factors of 10. To effect the same for numbers less than 10, a rectangular mask may cover up the 10, 9, or other column on the tray a, or a mask m, shaped as shown in Fig. 8, may be used to demonstrate the combinations of numbers which add up to 7, or to any other number less than 10. The frame e, Fig. 6, is formed at the front with a shelf g at the back of which is a groove in which the blocks c slide. This frame can be used for teaching addition, subtraction, or for teaching the factors of numbers up to 144. For subtraction, a stop k is set to the required number, and a block c corresponding to the number to be subtracted is moved against the left edge of the stop. By reading from the left edge of the block c, the answer is obtained. The stop k is held in position by a clip l, or by a pin engaging in one of a series of holes in the groove in which the slides c move. Blind persons, teaching.-The number blocks may be provided with Braille characters.
Patent GB-1090866-A (GB)
Title: Pressure-sensitive copying system
IPC: B01J13/02
Filed: 1966-03-02
Abstract: In a pressure-sensitive copying system including at least one pair of transfer and receiving sheets, the colour-generating system between adjacent sheet surfaces comprises (a) at least one substantially colourless first chromogenic material, which may be basic, and (b) at least one polymeric material which may be acidic, and is capable of reacting with the first chromogenic material in the presence of a common solvent (c) which is contained as discrete droplets in a pressure-rupturable medium, and (d) a light-colouring second chromogenic material selected from N-pivalyl-leuco-methylene blue, 2, 2 dimethylbutyryl-leuco-methylene blue or p-anisoyl-leuco-methylene blue, or mixtures thereof, which is supported on the transfer sheet but is transferred to the receiving sheet on release of the solvent thus preventing fading of the colour generated on the receiving sheet.  The colour-formers and solvent may all be present on or in the transfer sheet or one or more of the solvent, first chromogenic material or polymer can be present on or in the receiving sheet.  The polymer or the first chromogenic material may be dissolved in the solvent or they may be in solid form on or in either the transfer or the receiving sheet.  The second chromogenic material may be dispersed or dissolved within the solvent in the transfer sheet or may be dispersed in the transfer sheet in finely divided form or in solution.  The component(s) of the colour-generating system can be incorporated into the paper furnish, wet web or finished paper. Examples of suitable first chromogenic materials, polymers and solvents are given.
Patent GB-502059-A (GB)
Title: Improvements in or relating to heating pads for the permanent waving of hair
IPC: C09K5/18
Filed: 1938-03-25
Abstract: 502,059. Heating by chemical action. ZOTOS CORPORATION, and JACKSON, L. MELLERSH-. March 25, 1938, No. 9212. Addition to 461,740. [Class 64 (ii)] The thermophoric mixture for heating pads according to the parent Specification which comprises an oxidizing agent and a metal capable when moistened of reducing the same to generate heat together with an accelerator comprising a mixture of an acid or an acidic salt and a metal oxide, is modified by replacing the accelerator by the ionizable salt of a heavy metal that results from their chemical union. The ionizable salt may be formed in the mixture in situ by addition of a suitable heavy metal such as copper and an acid or acidic salt. An ionizable salt specified comprises copper sulphate. In addition to the salt, an acidic material may be added, particularly if the salt is difficultly soluble. A suitable mixture comprises 1À5 grams aluminium metal, 2À0 grams potassium chlorate, 1À0 grams copper sulphate, and 4À0 grams fuller's earth.
Patent GB-1016659-A (GB)
Title: Improvements in or relating to a process for producing substituted norbornyl ureas
IPC: C07C17/30
Filed: 1964-03-04
Abstract: A urea compound of the formula <FORM:1016659/C2/1> in which R, R1 and R2, when taken as individual radicals, are each hydrogen, chlorine, bromine, an alkyl radical having 1 to 4 carbon atoms or chloromethyl, and when taken as a group, R2 is hydrogen, and R and R1 taken together represent a chemical bond ( - ), -CH2-CH = CH-, or -CH2CHCl-CHCl-, and R3 and R4 are each an alkyl radical having 1 to 8 carbon atoms, is made by contacting a thiourea compound of the formula <FORM:1016659/C2/2> stepwise with phosgene in a water-free organic solvent at a temperature in the range of 0 DEG  to 80 DEG  C. and then with water in aqueous medium at a temperature in the range of 0 DEG  to 100 DEG  C. in the presence of an acid acceptor.  The intermediate thiourea compounds are made by contacting an unsaturated norbornene compound with HSCN generated in situ from a salt of thiocyanic acid and a mineral acid in aqueous media, at temperatures below 150 DEG  C. to produce a corresponding norbornyl isothiocyanate which is then reacted with a dialkyl amine HNR3R4 at temperatures below 150 DEG  C.  Suitable chloro-substituted norbornenes are obtained by reacting 2-chloro-1-propene, 2,3-dichloropropene-1, or vinyl chloride is reacted with cyclopentadiene (which may be obtained by depolymerizing dicyclopentadiene).  Detailed examples are given. Reference has been directed by the Comptroller to Specifications 890,540.
Patent GB-482785-A (GB)
Title: Thermionic amplifiers
IPC: H03F1/36
Filed: 1937-04-01
Abstract: 482,785. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. April 1, 1937, No. 9301. Convention date, April 1, 1936. [Class 40 (v)] Comprises various arrangements in which one or more negative feed-back connections are made from a class B push-pull output stage to a previous stage in a cascade amplifier. Fig. 1 shows two class B stages in tandem with feed-back connections from the upper valve of the final pair to the lower valve of the preceding pair. Close coupling between chokes 31, 32 and primary windings 8, 8<1> reduces parallel-singing tendency. The arrangement neutralizes the gasping effect experienced in previous attempts to use class B stages in cascade. In other arrangements, a single feed-back connection is made from one end of the primary of the output transformers to a single sided stage which may immediately precede the class B stage, Fig. 3 (not shown), or may be separated from it by a single sided stage, Fig. 2 (not shown) or by a class B and a class A push-pull stage, Fig. 4 (not shown).
Patent GB-142088-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M23/03
Filed: 1920-04-01
Abstract: 142,088. Salatje, P. J. P. April 19, 1919, [Convention date]. Spray carburettors.-Fuel is supplied to the float chamber through a pipe 46 provided with an adjustable valve 50, and the float chamber has an air vent 35.
Patent GB-821023-A (GB)
Title: Improvements in the drafting of textile fibres
Inventor: MATTHEW JOHN ALEXANDER
IPC: D01H5/40
Filed: 1955-04-01
Abstract: 821,023. Drafting textile fibres. LINEN INDUSTRY RESEARCH ASSOCIATION. April 3, 1956 [April 1, 1955], No. 9504/55. Class 120(2) Apparatus for controlling the drafting of fibrous slivers to reduce short period irregularities includes mechanism operative by variations in the drafting force on the slivers to vary the degree of draft on the sliver. Both pneumatic and mechanical gauging units are described. In one embodiment, Fig. 2, a pneumatic gauging unit 15 is connected to bellows 13 and to a source of compressed air. According to variations in the drafting force on a sliver, a back pressure is varied to expand or 'contract the bellows 13 causing a movable guide 10 to increase or decrease the length of the path taken by the sliver between the rollers 2, 3. A gauging unit, such as 15, may be placed in front of the guide 10 and stationary guides or rollers may also bear upon the sliver between the feed and drafting rollers. The gauging unit may be incorporated in the movable guide. In another embodiment, Fig. 4, the position and speed of the feed rollers is varied according to the pressure variations indicated by a pneumatic gauging unit, which indications cause a vane 60 to obstruct to a greater or lesser extent the flow of air between orifices 58, 59 resulting in movement of bellows 55 to alter the position of a lever 49 carrying feed rollers 47, 48. Since the feed rollers 47, 48 oscillate about a driving gear wheel 52, their speed varies with each movement. A mechanism for varying the speed of feed rollers driven by bevel gears without affecting the position of the rollers is described. Another pneumatic apparatus employs bellows to alter the pressure of control rollers located between the feed and drafting rollers. A mechanical form of this apparatus has a feeler rod 99, Fig. 8, on an arm pivoted at 95 that carries a roller 93 which bears against a roller 92 driven at a higher surface speed than the feed rollers. Fibre control arrangements such as aprons, fixed guides or rods, or positively driven rollers singly or in pairs may be included in the apparatus. The apparatus may be employed to introduce slubs or thick places into yarns by utilizing a valve such as 100, Fig. 2 or 101, Fig. 4, to cut off the supply of compressed air to reduce the length of the drafting reach. According to the Provisional Specification long period irregularities may be reduced, slubs may be produced by employing a standard yarn as a pattern, time delay devices may be incorporated, electrical or electronic units may be used for measuring thickness and stop mechanism may be employed to operate when irregularities become excessive. Specifications 656,135 and 716,370 are referred to in the Provisional Specification.
Patent GB-359866-A (GB)
Title: Improvements in or relating to gears for actuating the auxiliary devices of radial aircraft engines
IPC: F02B67/10
Filed: 1931-03-30
Abstract: 359,866. Driving engine auxiliaries. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. March 30, 1931, No. 9600. Convention date, March 29, 1930. [Classes 7 (ii), 7 (iii), and 7 (v).] A supercharger B is driven from a sleeve 1 on the crankshaft through an intermediate shaft 5a, which also drives a lubricating-oil pump A. The sleeve 1 also drives a shaft 12 which actuates simultaneously a compressed - air distributer C, a fuel-feeding pump, and a revolution indicator.
Patent GB-1389062-A (GB)
Title: Towing cables for vehicles
IPC: B60D1/18
Filed: 1972-03-01
Abstract: 1389062 Flexible towing connections A P A KG OTTO BAUDER 1 March 1972 [3 March 1971] 9619/72 Heading B8B [Also in Division H2] A vehicle towing cable comprises two steel cable pieces 1, 1<SP>1</SP> of approximately equal lengths, with jackets of electrically insulating material and metallic retaining parts 2, 2a and 2<SP>1</SP>, 2<SP>1</SP>a at the ends of these pieces, spring clips being either detachably on non-detachably connected to the retaining parts to facilitate use of the cable pieces as a pair of conductors for connecting an exhausted vehicle battery with a good one. The two cable pieces 1, 1<SP>1</SP> extend through a pair of discs 3, 3<SP>1</SP> between which is housed a compression spring 4 and when the towing cable facility is being used, the retaining parts 2a and 2<SP>1</SP>a engage the discs to compress the spring 4 during shock loading in the towing operation, the other retaining parts 2, 2<SP>1</SP> being engaged by buckles 5, 5<SP>1</SP> to form loops at the ends of the cable. The spring closed clips for coupling to battery terminals may be either permanently secured to the retaining parts of the cable (Fig. 2, not shown) or removably secured thereto by a retaining part receiving sleeve having a locking screw therein (Fig. 3, not shown).
Patent GB-218725-A (GB)
Title: Improvement in or connected with the insertion of vaginal swabs
IPC: A61F13/26
Filed: 1923-04-09
Abstract: 218,725. Scrutton, F. April 9, 1923. Tampon-introducers; tampons; pessaries.-A vaginal tampon c of compressible absorbent material such as sponge, and preferably enclosed in a silk net c<1>, is compressed into a tube a and, after insertion of the tube into the body, is ejected therefrom by means of a plunger b having an enlarged head b<1> and fitted at the outer end with a collar b<3> to prevent the head b<1> from passing beyond the end of the tube. The tampon c when not compressed is considerably larger in diameter than the tube a. When used to apply liquid medicaments the tampon is charged therewith whilst it is compressed within the tube a. Reference has been directed by the Comptroller to Specifications 2848/07, 24977/10, 972/11, and 109,457.
Patent GB-1338198-A (GB)
Title: Polymers having improved properties
IPC: C08K5/38
Filed: 1972-03-02
Abstract: 1338198 Polyethylene compositions MONSANTO CO 2 March 1972 [3 March 1971] 9665/72 Heading C3P Compositions comprise polyethylene and 0À1 to 1À0 weight per cent based on the polymer of sodium benzoate. The sodium benzoate may be added as an aqueous solution, e.g. during the densification of low bulk density polymers. The compositions may also contain conventional stabilizers, e.g. hindered phenols and dialkyl thiodipropionates, and anti-static agents, e.g. oleamide, lauric acid diethanol-amide and ethoxylated amines. The compositions may be moulded into articles of improved environmental stress crack resistance, and examples describe compositions of sodium benzoate, calcium hydroxide and (1) polyethylene modified with butene-1 and acetylene, dilaurylthiodipropionate and ethoxylated fatty amine, (2) polyethylene modified with hydrogen, dilauryl thiodipropionate and ethoxylated fatty amine, and (3) polyethylene modified with butene-1 and acetylene, and hindered phenol antioxidant.
Patent GB-714796-A (GB)
Title: Improvements in the production of coatings on articles from ethylene polymers
IPC: C09D127/06
Filed: 1952-04-17
Abstract: A solution of a vinyl chloride polymer with a resin soluble in alkyl substituted benzenes, e.g. an alkyd or a cyclohexanone resin is used for coating the surface of ethylene polymers.  The solutions may contain pigments, dyestuffs, plasticizers, and driers.  The vinyl chloride polymers may be polyvinyl chloride and those prepared from a major amount of vinyl chloride with vinyl esters or ethers, e.g. vinyl isobutyl ether, or acrylic compounds. The solvents may be alkyl substituted benzenes, e.g. toluene, xylene, esters, e.g. butyl acetate, chlorinated hydrocarbons, ketones, or mixtures.  The plasticizers may be chlorodiphenyl and phthalic acid or phosphoric acid esters, such as tricresyl phosphate.  Specified pigments are iron oxide and titanium dioxide.  Driers mentioned are lead, manganese or cobalt naphthenates.
Patent GB-742370-A (GB)
Title: Improvements in or relating to film materials
Inventor: CHALLIS KENNETH JOHN
IPC: G03C1/93
Filed: 1953-04-09
Abstract: 742,370. Coated films. ILFORD, Ltd. March 31, 1954 [April 9, 1953], No. 9697/53. Class 140. [Also in Group XX] A film base comprises a highly hydrophobic supporting sheet (a) consisting of polyvinyl chloride, or a copolymer of vinyl chloride with vinylidene chloride, or a copolymer of either of these with another substance, a surface layer (b) thereon which consists of a linear polyphosphate of the general formula :- in which both R and R<SP>1</SP> are aryl groups, a layer (c) superimposed on layer (b) and consisting essentially of nitrocellulose, and a layer (d) superimposed on layer (c) consisting essentially of gelatin. In a modification layers (b) and (c) are replaced by a single layer containing the constituents of both layers (b) and (c). Vinyl chloride-vinylidene chloride and vinyl-chlorideacrylate film are used in the examples.
Patent GB-1219722-A (GB)
Title: Improvements relating to the drilling of oil and gas wells
IPC: E21B33/043
Filed: 1969-02-24
Abstract: 1,219,722. Wells &c. VETCO OFFSHORE INDUSTRIES Inc. 24 Feb., 1969 [24 June, 1968], No. 9755/69. Heading E1F. In well apparatus comprising casing hangers W, Z supporting casing Y, X respectively, the hanger Z has a part 128 resting on the hanger W and a part 129 rotatable relative to the part 128, the arrangement permitting the casing X to be rotated to the right whilst fluid is passed upwardly around the casing X to clean the interior of the casing Y, or the well bore, in readiness for cementing. The hanger Z, together with a packer assembly 143 and a seat protector 142 is lowered onto the hanger W by a tool T comprising a running string 155, a mandrel 154 and a torque sleeve 147 having a splined connection to the mandrel. Fluid is passed down the running string and upwardly around the casing Y to pass through passage 165 .. 173, and the running string is rotated to effect the cleaning. The fluid is followed by a charge of cement having an upper plug and after cementing the running string is briefly turned to the left and then turned to the right, the connection 190 permitting the running string and mandrel to rotate relative to the part 129 so that the mandrel is disconnected from the part 129 and the packer assembly blocks the passage 165 . . 173. The tool is then disconnceted from the seat protector by twisting and lifting the string upwardly to remove the pins 148 from their slots, and the tool is finally removed from the well. When the seat protector is no longer required it may be removed by a running tool. The part 128 may be engaged by a latch to prevent upward movement of the hanger Z. The hanger W is seated in a casing hanger J and held therein by a latch 17, and the hanger J seats in a further casing hanger supported by a base structure. In a modification (Figs. 8-10, not shown) the mandrel with its threaded connection to the part 129 is replaced by a fitting having lugs engaging the part 129 and hydraulically controlled latches which engage the part 129, the packer assembly being actuated by a separate tool.
Patent GB-541692-A (GB)
Title: Manufacture of chromium complex compounds of ortho-oxyazodyestuffs
IPC: C09B45/16
Filed: 1940-06-05
Abstract: 541,692. Dyes. SOC. OF CHEMICAL INDUSTRY IN BASLE. June 5, 1940, Nos. 9832 and 9833. Convention dates, June 6, 1939, and May 6, 1940. [Classes 2 (iii) and 15 (ii)] Water soluble chromium complex compounds of azo dyestuffs of the general formula HO-R 1 -N=N-R 2 -OH, wherein R 1  represents a residue of a benzene monosulphonic acid, R 2 - OH represents the residue of a 1-naphthol carrying at least one halogen atom, and both hydroxy groups are in o-position to the azo group, are obtained by the action thereon in an alkaline medium of an agent yielding chromium in presence of a salt of an aliphatic hydroxycarboxylic acid, e.g. tartaric acid. Specified diazo components are 3:6- dichloro- 2-aminophenol-4-sulphonic acid (of which the diazo compound is produced in solution by adding sodium carbonate to a solution of diazotized 1:3:6-trichloro- 2-aminobenzene-4-sulphonic acid), 4-chloro- or bromo-2-aminophenol-6- sulphonic acid, 6-chloro-2-aminophenol-4-sulphonic acid and 4-methyl-2-aminophenol-5- or 6-sulphonic acid. Specified coupling components are the 5:8-dichloro-, 8-chloro- and 8-bromoderivatives of 1-naphthol. The products dye animal fibres, e.g. wool or silk, in shades which are specially fast to fulling and pot ing. Examples relate to (1) the chroming of the dyestuff, 3:6-dichloro-2-aminophenol-4- sulphonic acid# 5:8-dichloro-1-naphthol by boiling it with an aqueous solution of chromium sodium tartrate, such solution being obtained by adding caustic soda solution to a solution obtained by boiling an aqueous solution of tartaric acid with the moist precipitate produced by adding sodium carbonate to an aqueous solution of chromium sulphate, (2) the dyeing of wool with this dyestuff from a boiling aqueous bath containing sulphuric acid. Specification 460,561 is referred to.