baber/WOPTO huggingface dataset:
Patent GB-1185874-A (GB)
Title: Electric Motor Control Circuits
Inventor: HOOPER BRIAN DAVID
IPC: H02P7/29
Filed: 1967-02-13
Abstract: 1,185,874. Control of D.C. motors. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 2 Feb., 1968 [13 Feb., 1967], No. 6770/67. Heading H2J. A series D.C. motor 1, 2, energizable in either direction of rotation by a battery 5 and interlocked change-over contacts 8, 9 in series with the armature 2, is controlled by a semi-conductor chopper circuit 4 whose firing circuit 12 is in turn controlled by a member 10 manually adjustable to provide a full voltage range across the motor and by a member 11 which detects the sense of the voltage across the armature 2 and restricts the voltage applied to the motor during " plugging " conditions. The circuit 4 varies the mark-space ratio of constant frequency pulses which it applies to the motor and the member 11 applies a signal to the circuit 12 when the motor is operating in the forward direction with respect to the supply voltage (namely when it is not plugging), this signal permitting the circuit 4 to operate over its full range of mark-space ratio variation. Diodes 6, 7 provide stability during the interpulse periods and plugging conditions respectively. In a modification, Fig. 2 (not shown), a parallel combination of resistance and short-circuiting switch is connected in series with the armature and field, the switch being controlled by the member 11 so that the resistance is inserted during plugging conditions and shorted out when the motor is operating normally. This latter form of control may be additional or alternative to the voltage regulator circuit 4 which, in a further envisaged modification, may be free from voltage restriction if the resistance control is present.
Patent GB-989981-A (GB)
Title: Anchoring system for an undersea island
IPC: E21B15/02
Filed: 1963-02-20
Abstract: 989,981. Artifical submerged islands. R. B. FULLER. Feb. 20, 1963, No. 6798/63. Heading E1H. [Also in Division B7] An artificial island comprises a buoyant caisson 1 submerged under the pull of anchor rodes 3-6 extending from the sides of the caisson (see Division B7), whereby the caisson is . held by opposing torques while yielding to slow vertical movement with the tides against the resilient pull of the catenary sags in the rodes. The caisson may form an off-shore oil well rig (Figs. 6 and 9) having buoyancy regulating tanks 7, gear for the well drilling rig, a chamber 14 from which extends an air supply and escape shaft 15 supported by a raft 16, a shaft 13 and an elevator 12. The submerged island may constitute a manned operating base with submarine berthing and communication facilities in which case the caisson has a blister 18 (Figs 14-16) with a flared entrance 19 and an entrance hatch 22 so that the submarine may be brought under the blister with a hatchway on the deck of the submarine located under the entrance hatch 22. A compartment 23 gives access to the caisson proper, the shell and blister of which are triple and quilted, the outer set of spaces being filled with liquid and the inner set with air.
Patent GB-222766-A (GB)
Title: Improvements in combined weighing and counting scales
IPC: G01G19/42
Filed: 1924-03-17
Abstract: 222,766. Marks, E. C. R., (Toledo Scale Co.). March 17, 1924. Counting by weighing.-A weighing-mechanism and a counting-mechanism are combined in one machine in such a manner as to be independently acted upon by the load. As shown, a draw-rod 34 connects the usual platform mechanism with a lever 31, which is suspended at one end from a counting lever 26 by means of a link 30, and at the other end from an automatic load counterbalancing mechanism by means of links 7, 32. The weighing-mechanism is enclosed with its chart in a housing 4, and is provided with a lever 10 carrying tarepoises 17, 18 and a removable capacity-increasing weight 22. The counting lever 26 is pivoted on brackets 25 and provided with a specimen pan 29 and slidable tare weight 28. Locking devices 35, 36 are provided for locking the counting lever and weighing- mechanism respectively.
Patent GB-589230-A (GB)
Title: Method and apparatus for permanently waving hair
IPC: A45D7/04
Filed: 1943-04-30
Abstract: Hair is permanently waved by coiling up or shaping and holding each strand to the form desired and then directly and selectively applying to each strand a waving solution, the hair being isolated in an open-top liquid impervious enclosure or shield (see Group XIV) which allows free access to each coil of hair and also prevents liquid from flowing down the face and neck.  The treating liquid may be an aqueous solution of thio-glycollic acid.  The hair is wound round the joined halves of a mandrel, as described in Specification 589,278, the halves being retained temporarily in interlock by an elastic containing strip.  The strip is then released and the mandrel halves can be-withdrawn leaving the coil available for flushing liquid both inside and out.
Patent GB-755551-A (GB)
Title: Fire retardant coating composition
IPC: C09D5/18
Filed: 1954-03-09
Abstract: A fire-retardant coating composition comprises an aqueous dispersion of a mixture of a latex-like dispersion of a film-forming polymeric material in an amount of 30 to 15 per cent of the solid content of the mixture, and 70 to 85 per cent of non-film-forming fire-retardant solids which consists essentially of (1) a foam-forming substance selected from monoammonium phosphate, diammonium phosphate, phosphoric acid, ammonium sulphate, sulphamic acid, ammonium sulphamate, ammonium bromide, sodium tungstate and sodium borate; (2) from 10 to 70 per cent by weight of the foam-forming substance, of one or more polyhydric compounds selected from starch, the hexitols, the pentitols and the mono-, and ditetritols; and (3) from 0 to 55 per cent based on the weight of (1), of a compound selected from glycine, urea dimethyl urea, guanyl urea, guanidine, and dicyandiamide.  When a starch is used as ingredient (2) it is present in an amount less than 15 per cent by weight of (1).  The composition may also contain other ingredients such as thickening agents, e.g. sodium alginate, low viscosity methyl cellulose, gum tragacanth, gum arabic, or Irish moss, pigments, e.g. titanium dioxide, and fungicides and bactericides such as sodium pentachlorophenolate, beta naphthol, copper fluoride, boric acid, borax, zinc salts, arsenates, or arsenites.  Filmforming materials mentioned are polyvinyl chloride, copolymers of vinyl chloride with vinylidene chloride or vinyl esters, copolymers of styrene and butadiene and copolymers of vinylidene chloride and acrylonitrile.  The polyhydric compound may be pearl corn starch, mannitol, arabitol, mono dipentaerythritol or a dimer of pentaerythritol.  The compositions may be used to coating buildings materials, e.g. fibre board.
Patent GB-313106-A (GB)
Title: Improvements in coin-freed apparatus
IPC: G07F11/02
Filed: 1928-03-05
Abstract: 313,106. Jofeh, E. J. March 5, 1928. Delivery of articles stored in rows.-The front article 6<a>, Fig. 2 of a row pressed into position by a spring 15 is .pushed out through an opening 4<b> by a rod 5 carried within the casing by the arm 2<b> of an operating lever 2 pivoted at 3. The lever has an operating portion 2<a> extending through a slot 4<c> in the casing. The outlet, 4<b> is normally closed by spring-returned hinged doors 7, 8 having arms 7<d>, 8<d> normally resting against a stop 7<e> and a projection 9<a> of a lever 9 respectively. The lever 9, in the normal operation, allows the arm 7<d> to pass freely but, if the door 8 is opened by an instrument in an attempt to withdraw an article fraudulently, the lever 9 is moved about its pivot 9<b> by a spring 9<c> and locks the upper door 7. Coin action, mechanical-connection.-A coin c, Fig. 1, is inserted through the slot 4<c> and drops through a shoot 10 to a section 10a connected by a laterally moving hinge 10<d> to the operating lever. The coin rests on a guide 11 with its upper edge projecting so as to engage a pin 13P and lift a detent lever 13, when the lever 2 is operated. In the absence of a coin, a projection 13<a> on the detent engages a shoulder 10<b> on the section 10<a>. A full stroke of the lever 2 is ensured by a pawl 10<i> engaging ratchet teeth 10<h>. Testing edge for milling. - If milled edged coins only are to be used, the pin 13<p> has a knife edge 13<g> and the guide 11 is pivoted at 11<a> and provided with teeth 11<d>. It also has a projection 11<c> arranged in the path of a projection 10f on the section 10<a>. A milled edged coin rests on the teeth 11<d> and is engaged by the knife edge 13<g> so that it turns the guide 11 on its pivot to move the projection 11<c> clear of the projection 10<f>. A smooth coin slides along the guide 11 without turning it. In operation coins are moved laterally off the guide 11 by a rod 10<e> attached to the section 10<a> and extending through a slot in the top of the casing. " Empty " machines, locking; coin-slit closing-devices.-When the last article is delivered, a projection 16<a> on a plate 16 pressed by the spring 15 engages the pusher rod 5 and prevents the return of the operating lever 2. A shutter 2<c> carried by the lever 2 closes the coin slit 4<c>.
Patent GB-527217-A (GB)
Title: Improvements in or relating to the filtration of fluids
IPC: B01D39/14
Filed: 1939-03-03
Abstract: 527,217. Filtering gases. ORR, W. M. March 3, 1939, No. 6973. [Class 8 (ii)] [Also in Group I] A filtering medium comprises bundles of fibres each of which has the individual fibres adhering to one another by their natural binding material, the bundles being matted together by a mass of individual fibres and having their axes in planes parallel to the direction of flow of fluid through the medium. Fibres of wood, sugar cane, bagasse or corn stalks may be used. Some varieties of insulating beard serve as a suitable medium. The mechanical action of the fibre may be enhanced by treatment with a chemical solution. Thus for drying gases the fibres may be treated with a solution of calcium chloride. In the construction shown discs 1, each consisting of bundles of fibres arranged horizontally and mixed with shorter variously arranged fibres are superposed between plates 7, 13 to form a hollow cartridge which is mounted in a casing 8. The discs may be secured together by layers of adhesive. Liquid to be filtered enters the casing through an inlet 15 and the filtrate is discharged through a perforated pipe 5. A spring 14 between the plate 13 and the cover of the casing holds the discs in position. In modified apparatus, shown in Fig. 4, the discs 1 are spaced from a central screen core 19 by decolorizing clay 20. Boneblack or charcoal or, when a gaseous fluid is being treated, calcium chloride may be used in place of clay.
Patent GB-928991-A (GB)
Title: An improved flexible coupling
IPC: F16D3/50
Filed: 1961-02-25
Abstract: 928,991. Universal joints. F. E. SWAIN. Jan. 30, 1962 [Feb. 25, 1961], No. 6988/61. Class 80 (2). A universal joint comprises two members interlinked in the manner of chain links, their remote ends being connected to the driving and driven shafts, and the members being separated axially and circumferentially by flexible material to which they are bonded. As shown in Fig. 1, the members consist of flat U- shaped links 1, 2 bonded to a separating block 3 of rubber or like material, the ends of the links having holes 4 for securing them to the driving and driven members. In the form according to Fig. 5, the links 12, 13 are embedded in a flexible block 14 with end plates 15, 16 by means of which the material of the block may be compressed to any desired extent when the bridge pieces of the driving and driven members are secured by nuts on the ends of the links. In the modification according to Fig. 9, the torque-transmitting members 35, 36 each consist of integral double U-shaped links.
Patent GB-1158055-A (GB)
Title: Improvements In Shooting Games Employing Moving Targets
IPC: F41J7/04
Filed: 1967-02-14
Abstract: 1,158,055. Spring gun with movable target. LUIS CONGOST S.A. 14 Feb., 1967 [21 Feb., 1966], No. 7019/67. Heading A6S. A spring gun 1 firing a projectile 36, fitted with a posterior appendix 37-38-39 to limit its forward and backward movement, is pivotably mounted on a base 2 upon which is also mounted a pivoted channel 4 (Fig. 4 not shown) arranged to tilt as a result of rotation of the gun and along which a spherical target 5 is free to roll in a direction transverse to that of the movement of the projectile. The bullet 36 with its posterior appendix 37-38-39 is fired by the spring 42 which can be held in the "loaded" position by insertion of its end 41 in a notch 46 (Fig. 2 not shown) of the slot 45. The gun is pivoted about its projection 10 which is engaged in hole 14 of the base 2 and is guided by the travel of its projection 16 in an arcuate slot 15 of the base 2. The channel 4, caning the target 5, is supported on the tower 3, and is tilted about the pivots 24 by movement of the rod 53 which is engaged in the central projection 30 of the channel 4 and which is in turn operated by movement of the lever 47 which is pivoted about 48 and moved by the movement of projection 50 of the gun.
Patent GB-213265-A (GB)
Title: Machine for packing paper rolls
IPC: B65B25/14
Filed: 1924-03-19
Abstract: 213,265. Ljungstr÷m, W. March 22, 1923, [Convention date]. Operating belt forks.-A machine for wrapping rolls of paper for newspapers &c. in paper, jute cloth, &c., is driven from a shaft 12, Figs. 1 and 3, carrying fast and loose pulleys 13, 14. The belt shifter 17 is mounted on a blade, spring 18 on a link 16 operated by a lever 15. The blade constantly tends to shift the belt to the loose pulley but is prevented therefrom during the running of the, machine, by engagement in a notch 20 in the table while the belt is on the fast pulley. When a predetermined number of turns of paper have been applied to the roll, a cam 28 on a wheel 27 forces a. slide 21, through a lever 23 and slide 25, to disengage the spring 18 from the notch 20. The belt is thereby shifted to the loose pulley and the machine stops. The number of turns is controlled by a step pulley 29 from which the shaft carrying the wheel 27 is driven.
Patent GB-702870-A (GB)
Title: Method of purifying saturated free fatty acid and the product thereof
Inventor: JENNESS LESLIE GEORGE
IPC: C11C1/00
Filed: 1952-03-20
Abstract: <PICT:0702870/III/1> Saturated fatty acids are separated from unsaturated fatty acids or other soluble impurities by forming small discrete particles of the mixture and treating the particles with a selective solvent for the unsaturated fatty acids or other impurities in which the saturated fatty acids are insoluble, the composition of the mixture being pre-arranged so that it is of a hardness to allow it to be formed into discrete particles and contains sufficient soluble matter to allow the solvent to penetrate the particles but insufficient soluble material to permit the particles to be broken down by the action of the solvent.  Thus if the starting material does not conform to the requirements it is necessary to add either saturated fatty acids or an impurity such as unsaturated fatty acids to produce a starting material of the required characteristics.  The particles may be formed by melting the material and then subjecting it to a flaking operation or spraying it to give granules; or the particles may be obtained by graining or other crystallisation operation; or by breaking up a large mass of the starting material. The treatment may be carried out with solvent at a temperature at which the solubility of the saturated fatty acid is very slight.  The solvents specified comprise aliphatic, aromatic or cyclic hydrocarbons or mixtures thereof, chlorinated hydrocarbons, furane compounds such as furfural, thiophene, monohydric alcohols, ethers, acetone and mixtures thereof.  Exemplified solvents comprise heptane or benzene or a mixture thereof.  The solvent and fatty acid mixture are used in approximately equal proportions by volume.  The process may be applied to the treatment of tall oil, various split oils and fats, hydrogenated or not, commercial stearic acid and particularly hydrogenated, split and flaked soya bean oil, black grease.  In the latter application the extract, after removing solvent, contains free fatty acids, mainly unsaturated, and unsaponifiable matter.  The acids may be removed by distillation, leaving unsaponifiable matter which is a source of tocopherol and stegmasterol.  A suitable plant for batch operation comprises an extraction tower 1 to which the raw material 2 is introduced until it is nearly filled.  Solvent 3 is supplied to a point where it covers the material and is allowed to stand until the extraction is complete.  The solution is then drained into a tank 4 and sent to a still 5, giving a residue 6 and solvent 7 for return to the storage tank 3.  Two wash solvents are supplied from the tank 3 to the tower and collected in first and second wash tanks 8, 9.  The solid saturated fatty acids 10 in the tower are removed to a still 11 to remove solvent 13, which is returned to the tank 3.  The wash liquors may be used in subsequent operations.  The operation may be adapted for continuous working, the solvent flowing continuously through the tower.
Patent GB-416385-A (GB)
Title: Manufacture of new vat dyestuffs of the anthracene series
IPC: C09B57/12
Filed: 1933-03-10
Abstract: Vat-dyes are prepared by condensing an anthracene tetracarboxylic acid or anhydride of the formula <FORM:0416385/IV/1> or <FORM:0416385/IV/2> with an o-diamine or a salt thereof in presence or absence of a dissolving or diluting agent.  The products are probably anthracylene-di-(arylimidazoles).  Water, glacial acetic acid, acetic acid, pyridine, nitrobenzene or an excess of the o-diamine may be employed as reaction medium; the products may be halogenated in the usual manner.  The above carboxylic acids are prepared by reacting aceanthrene with malonic acid dinitrile in presence of a metal chloride condensing agent and treating the product so formed with an acid chlorate solution followed by alkaline hypochlorite solution.  In examples, the above tetracarboxylic acid is condensed with o-phenylenediamine and 4-ethoxy-1.2-phenylenediamine; the products dye dark-blue shades from the vat.  The Provisional Specification also relates to the foregoing condensation applied to substitution products of anthracene tetracarboxylic acid or anhydride.  In addition reference is made to a process wherein anthracene tetracarboxylic acid or anhydride is condensed with an o-nitroamine, this product being reduced with simultaneous ring-closure to the imidazole; also to a further process wherein the condensation with the o-diamine is effected in a low-boiling diluent to yield an intermediate which may be converted to the imidazole by a more drastic heat treatment.  Reference is also made to halogenation of the products.
Patent GB-331571-A (GB)
Title: Improvements relating to inking apparatus for printing machines
IPC: B41F31/20
Filed: 1929-03-06
Abstract: 331,571. Crabtree & Sons, Ltd., R. W., and Smith., E. W. March 6, 1929. Inking -apparatus. - The fountain-roller b is provided with an ink-controlling blade a, which is set in an upstanding position inclined slightly over the fountain-roller and disposed substantially tangentially thereto, the lower edge of the blade being adjustable by means that can be secured in position after the adjustment is made. The blade is secured to a bridge c by means, such as studs e, and its lower edge is adjusted by means of screws f, each carried within a screwthreaded bush g, and having a head i for manipulation. The lowest position of the screws f within the bushes is determined by flanges h. The bushes are adjusted by means of hexagonal heads j, and are locked by means of screws k.
Patent GB-1034494-A (GB)
Title: Electrodeposition of chromium
IPC: C25D3/10
Filed: 1965-02-19
Abstract: A chromium plating bath includes a hexavalent chromium compound, a sulphate ion, and a polyhalogenated di-carboxylic acid of formula <FORM:1034494/C6-C7/1> Where X is 0, 1 or 2; Y is 1 or 2; when X = 0 and Y = 1 then R3 and R4 are Cl, F, or Br; when both X and Y = 1, R1 and R3 are F or Cl, and R2 if F, Br, or Cl and R4 is F, Cl, Br, or H; when X and Y total 3 or 4, R1, R2, R3 and R4 are all fluorine or 2F and 2Cl.  Suitable compounds are tetrachloro-succinic acid, hexafluoro-glutaric acid, and octa fluoro-adipic acid.  The sulphate ion may be added as H2SO4 or strontium sulphate.  The ratio CrO3/SO4 is between 150 and 300 to 1.  Optional additions are, strontium chromate, dichromate, or carbonate; thorium, or uranium fluoride, fluosilicate, fluozirconate, fluoborate, or fluotitanate; trifluoromethyl sulphonic acid, Z-hydro-perfluoroethyl-1-phos-phonic acid, and p-ethyl cyclohexyl sulphonic acid.
Patent GB-1485133-A (GB)
Title: Apparatus for the manufacture of bags made by heat-sealin
IPC: B31B29/00
Filed: 1974-08-28
Abstract: 1485133 Makes valved bags DAI NIPPON PRINTING CO Ltd 28 Aug 1974 [28 Aug 1973 (2)] 07358/77 Divided out of 1485132 Heading B5D The subject-matter of this Specification is identical with that described in parent Specification, but the claims are concerned with a machine for making the bags.
Patent GB-845205-A (GB)
Title: Means for securing together two or more components of a structure and the method of so doing
IPC: F16B37/00
Filed: 1957-03-06
Abstract: 845,205. Wall-plugs and bushes. PLUMMER, A. July 10, 1957 [March 6, 1957], No. 7464/57. Class 89(1) Means for securing together two or more components 11, 12, comprises a selftapping-screw 21 engaging an unthreaded deformable-nut 20 of synthetic-resin or thermo-plastic material, having at least one diametrical-slot 29 extending from the entering-end to a point short of the flange 24. The nut has a bore 26 tapering inwards towards the slottedend, and in use the nut 20 is inserted in one component and then deformed by the screw 21. The nut may be fluted externally, and may be deformed in the wall &c. by a tool, not shown, before insertion of the screw. The outside diameter of the nut approximates to. its overall length.
Patent GB-856838-A (GB)
Title: Method of converting excessively moist, plastic, and greasy ores into lump form on a sintering band
IPC: C22B1/20
Filed: 1958-03-07
Abstract: In a method of converting excessively moist, plastic and greasy ores into lump form on a sinter band by two-zone sintering such material with a wide range of grain size, preferably up to 35 mm., is bedded in the lower layer, the upper layer consisting at least mainly of material previously dried and roasted in the lower layer of a previous operation.  The upper layer may include small quantities of fines from the upper layer of the previous operation and/or the finer portion from undried ores screenable without drying.  Any portions of moist ore above 50 mm. may be separated and disintegrated.  The coarser portions from the lower layer, preferably over 8 mm., can be taken directly to the blast furnace.  Crude ore which is too moist even for the lower layer may be rendered gas-permeable by admixture with return material, e.g. 10 to 18% In treating several differing ores simultaneously the moist portions of ore may be exclusively bedded in the lower layer and the finer portions with return material in the upper layer.  With a single kind of ore the lower layer may be exclusively of crude ore and the upper layer a mixture of crude ore and return material, the proportion of the latter increasing with moistness.  The heat may be supplied partly by solid fuels and partly by hot gases.