baber/WOPTO huggingface dataset:
Patent GB-109795-A (GB)
Title: Process for Cleaning Filters in connection with the Purification of Sugar, Oils and Chemicals.
Inventor: WOOSTER PHILIP LISCOMBE
Filed: 1917-08-10
Abstract: 109,795. Wooster, P. L. Aug. 17, 1916, [Convention date]. Filters with loose filtering-materials.-In the purification of sugar, oils, and chemicals by passage through charcoal and like filters, when the filtering-medium becomes clogged, the sugar &c. retained in it is recovered by applying suction to the filter, the residue being dissolved or washed out in the usual manner, and suction may be applied or air otherwise forced through the filtering-medium simultaneously with the application of the washing-liquid. In the plant shown, the filtrate from the filters a is delivered by pipes i which can be cut out by cocks k to allow suction to be applied to the filters by a pump c acting through a chamber b. The material extracted by the suction passes into the chamber b and through a barometric leg d and a seal tank e to a tank f from which it is delivered by a pump g.
Patent GB-237219-A (GB)
IPC: B41L29/00
Filed: 1925-05-04
Abstract: 237,219. Deutsche Maschinenbauund Vertriebs-Ges. July 21, 1924, [Convention date]. Rotary machines; stencils and stencilling; printing-surfaces.-In duplicating apparatus comprising a printing-cylinder c provided with two rows of unequally-spaced pins for attaching a correspondingly perforated printing-sheet a, the spacing of the pins in one row is the reverse of that in the other row whereby the sheet cannot be attached with the wrong side out but may be changed end for end. As shown, one row of pins b is fixed, and the other d is mounted on a roller f acting, under the influence of a coil spring g, to stretch the sheet over the cylinder c. The pins b, d and the perforations h may be spaced as shown in Fig. 3, the distance between consecutive pins increasing uniformly. For different constructions of apparatus, the spacing may be varied to prevent the use of unsuitable sheets in any particular machine.
Patent GB-119223-A (GB)
Title: Improvements in the Desulphurisation of Zinc Sulphide Ores.
Inventor: RIGG GILBERT
IPC: C22B1/04
Filed: 1918-07-15
Abstract: 119,223. Rigg, G. Oct. 30, 1917, [Convention date]. Roasting.-Zinc sulphide ores are desulphurized by roasting in two stages, the sulphur content being reduced in the first stage to such an extent that fusion and slagging are avoided in the second stage which is effected by blast roasting, for example in the Dwight-Lloyd apparatus. The first stage may be carried out by partial roasting to the required extent, or by partial or complete roasting and mixing the product with unroasted ore. The partially roasted ore may be mixed with a binder such as clay or slime concentrates and water before treatment by the blast roast. In the blast roast steam or water vapour may be mixed with the air passed through the ore. In some cases part or all of the gases from the blast roaster may be passed over one or more hearths of the preliminary roasting furnace so as to increase their content of sulphur dioxide.
Patent GB-123479-A (GB)
Title: Improvements in and relating to Valve Operating Mechanism for Internal Combustion Engines.
Inventor: PHELPS ROSS WILLIAM
IPC: F01L1/12
Filed: 1918-07-16
Abstract: 123,479. Phelps, R. W. July 16, 1918. Valve-gear. - Comprises a rocking-member located between a valve stem and its actuating cam and having a flat surface which engages the cam swell. In the construction shown in Fig. 1, inlet and exhaust valves 8, 7 respectively are actuated by a single cam 1 which engages a pair of rocking-members 4, 3 pivoted at 6, 5, the members 4, 3 having flat surfaces 9, 11 in contact with the actuating cam. The parts are so dimensioned and arranged as to give a maximum valve opening when the piston speed is a maximum.
Patent GB-513753-A (GB)
Title: Improvements in or relating to apparatus for cleaning cinematograph films
IPC: G03D15/00
Filed: 1938-04-19
Abstract: 513,753. Kinematograph projectors. SOMAN, L. April 19, 1938, No. 11783. [Class 97 (i)] A device for applying a treating liquid to the film drawn from a magazine through the projector head comprises a cradle mounted on the projector head and carrying pads applying the liquid to opposite sides of the film, the device having means to distribute liquid to the pads and additional means to discharge liquid in proximity to the film after passage through the pads comprising a valve opened by contact with a flame. As shown, the liquid is contained in a cylinder 26 adjustable on an arm 21 and connected by tubes 35, 38 to the cradle 18, which is mounted by screw on a plate 14 on the projector and supports the film magazine 16. The tube 38 supplies liquid to the pads 71, 72, Fig. 6, and the tube 35 is connected to the valve 42 having apertures 44 opened by, a thermal control 45 when the film ignites, the valve being .placed adjacent the first loop of the film. The liquid passes to the pads through tubes 67, 68; the flow in each tube being regulated by independently operated valves. The pad 71 is fixed and the pad 72 is carried on bars 77 slidable in the casing, springs 81 holding the pads together engage the film 17 which is guided !by rollers 92..95 carried on a framework; slidably removable from the projector for cleaning &c. To facilitate film-threading, slots 85A, 97, Fig: 1, are provided and -the cleansing chamber has a hinged door 86 carrying a finger 89 to engage a nut 82 on one of the bars 77 when the pad 72 has been retracted and the door is open, so as to hold the pad in the retracted position until the door is again closed.
Patent GB-789232-A (GB)
Title: Improvements relating to coal or ore washing plants
Inventor: SYMINGTON ROBERT
IPC: B03B5/44
Filed: 1955-04-25
Abstract: 789,232. Washing granular materials. SIMON-CARVES, Ltd. Feb. 6, 1956 [April 25, 1955], No. 11838/55. Class 82(2) A plant for washing coal or ore into fractions of different specific gravities by a sink and float process, comprises a centrifugal type separator or cyclone to which raw material and medium of correct density are supplied, means for returning medium leaving with the separated products to the input, screens for washing the separated products to remove medium adhering thereto, a magnetic concentrator for recovering and concentrating the dilute medium thereby obtained, a demagnetizer for the concentrated medium, and means controlled by the density of the medium at the input, whereby the demagnetized medium is directed to the input or to the concentrator for further concentration. Medium or appropriate specific gravity is combined with the raw coal in a fuel tank 1, the combined medium and raw coal mixture is pumped to a cyclone separator 3 where the raw coal is separated into light and heavy fractions which are transferred to screens 4 and 5. As the materials travel along the screens, medium is drained from them and returned to the feed tank via pipe 6 and they are then sprayed with water to remove medium still adhering. The dilute medium so formed passes to a partition screen 7, the materials from the screens 4 and 5 being screened separately. The materials retained on the partition screen 7 are combined with the respective light and heavy fractions from screens 4 and 5. The dilute medium passing through screen 7 passes to tank 8 whence it is pumped to a medium recovery system incorporating a density control. The recovery system comprises a tank 10 where the medium is concentrated magnetically;-surplus water is fed to the sprays over screens 4 and 5. The concentrated medium is then pumped through a demagnetizer 11 to a splitter box 12 whence it is either recirculated to tank 10 or fed to tank 1. This operation is controlled by an instrument 17 measuring the specific gravity of the medium in the feed tank 1 and actuating a device 14 for controlling the splitter box 12. One or more magnetic separators may be incorporated to treat the streams of dilute medium from the screens, separately before they pass to the recovery system; or one or more magnetic separators may be used to treat the magnetic medium recovered in the recovery system. In each case, the medium is demagnetized following magnetic separation and prior to its return to the correct medium circuits. In each case, also, the fine solids removed on the magnetic separator will be recombined with either the light or heavy fraction. Specification 728.195 is referred to and Specification 678,737 is referred to in the Provisional Specification.
Patent GB-1076192-A (GB)
Title: A method and apparatus for controlling devices with many stable states of equilibrium
Inventor: SISORSKY VITALY PETROVICH
IPC: H03K3/02
Filed: 1964-03-20
Abstract: 1,076,192. Multistable devices; transistor circuits. INSTITUTE MATEMATIKI SIBIRSKOGO OTDELENIA AKADEMII NAUK USSR. March 20, 1964, No. 11991/64. Headings H3A and H3T. A control arrangement for switching a multistable device 1 of the type described in Specification 1,054,652 to a different stable state comprises switch means 6 operated by a triggering pulse which connects a charged capacitor 7 across a filter capacitor 3, across which the D.C. control and output voltage of the device is developed. The resulting change in D.C. control voltage shifts the device to an adjacent stable state in which it provides a different D.C. output voltage. The arrangement may also be used to control a multistable device of the kind described in Specification 1,076,193.
Patent GB-735960-A (GB)
Title: Improvements in or relating to insulated electric cables and impregnating compounds therefor
Inventor: KING ALBERT
IPC: H01B13/30
Filed: 1953-04-30
Abstract: 735,960. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. April 29, 1954 [April 30, 1953], No. 12003/53. Drawings to Specification. Class 36. [Also in Group VIII] In a fully-impregnated, non-draining cable having a dielectric of impregnated fibrous material, the impregnant comprises a microcrystalline petroleum wax mixed with a low dielectric loss synthetic hydrocarbon wax having a melting-point between 85 and 120‹ C. The synthetic hydrocarbon wax may comprise from 1-40 per cent by weight of the compound and the total wax content may comprise from 20-100 per cent by weight of the compound, the balance, if any, comprising a cable-impregnating mineral oil. The synthetic hydrocarbon wax may comprise a mixture of a microcrystalline wax having a melting-point of 108- 110‹ C. and an average mol. wt. of about 600, and obtained in the hydrogenation of carbon monoxide in accordance with the Fischer- Tropsch synthesis, and a polyethylene wax having a melting-point of about 110‹ C. and a mol. wt. of 2000-6000. The compound may also contain a minor proportion of one or more plasticizers such as polyisobutylene, rosin, polyethylene and butyl rubber, and small proportions (0.01-1.0 per cent) of other ingredients such as anti-oxidants and metal sequestrators. Specifications 581,830 and 698,055 are referred to.
Patent GB-111817-A (GB)
Title: Improved Means for Locking Nuts.
Inventor: BOLT COLUMBUS HARRY
IPC: F16B39/02
Filed: 1917-08-21
Abstract: 111,817. Bolt, C. H. Aug. 21, 1917. Locking nuts. - A screw 7 threaded through a nut 4 has a conical point which enters the work 1 to lock the nut. The point is formed with ratchet teeth which prevent the screw from working loose. The screw may cut its way through the edge of a washer 5 or engage one of a number of notches in the washer.
Patent GB-470591-A (GB)
Title: Improvements in the method of treating phosphates under conditions of incandescence
IPC: C05B13/02
Filed: 1936-04-27
Abstract: An improvement in or modification of the process described in the parent Specification is characterized in that the mixture of crude phosphates of apatite structure, alkali compounds and refractory acid-acting substances is heated rapidly, and then exposed to the action of the flames for a prolonged time at white heat in a rotary tube furnace provided with stemming rings or widenings.  The reaction mixture may be sintered or completely fused, but superficial fusion only should be avoided.  The admixture of the ground ingredients is preferably moistened, and may be formed into small lumps by an extrusion press.  If desired, the lumps may be dried before introduction to the furnace.  Gas, oil or coal-dust firing is employed, and air, or air enriched with oxygen or steam can be used as a blast.  The blast gas is preferably preheated, for example, by the waste heat of the furnace, or by the heat liberated from the cooling clinker.  The furnace liner may be cooled from the exterior. The ground product may be mixed with potassium or nitrogen compounds to form neutral or basic fertilizers.  In examples, the furnace tube is maintained at 1250--1350 DEG  C., in the flame zone, and at red incandescence at the end.
Patent GB-447800-A (GB)
Title: Improvements in or relating to the construction of bubbler column units
IPC: B01D3/20
Filed: 1935-04-18
Abstract: 447,800. Jointing pipes to plates. RALPH, S. J., INGLIS, G. O., and ALUMINIUM PLANT & VESSEL CO., Ltd., Northfield House, Point Pleasant, Wandsworth, London. April 18, 1935, No. 12035. [Class 99 (i)] [See also Group XII] The plates of a bubbling column are formed with openings 2 having upstanding edges 3 to engage with the vapour pipes 4, which may be formed of stainless steel. The hoods 10 rest on the tops of the pipes 4 and are held in position by bolts 12, and the vapours escape through openings 6. In a modification, the openings 2 are of segmental or sectorlike form so as to leave a central boss which supports the lower end of the bolt. The tubes 4 may have tapered lower ends pressed into the edges 3 by a tapering mandrel.
Patent GB-768630-A (GB)
Title: Process for the preparation of lubricating greases
IPC: C09K23/54
Filed: 1955-04-26
Abstract: A lubricating grease, which has no tendency to flow out of the bearings when the machinery is not operating, is prepared by dispersing a clay in water, adding a surface-active agent and a water-immiscible lubricating oil to the dispersion, removing any water which may separate from the mixture at this stage, subjecting the remaining mixture to a quiescent heating period of between 0.1 and 5 hours at a temperature at which water does not boil off but at an average temperature above 50 DEG C. without any substantial working, and thereafter substantially completing the dehydration while working the composition.  The clay may be bentonite, hectorite, saponite, nontronite or attapulgite.  The surface-active agent may be of the cationic, anionic or non-ionic type and suitable agents are onium salts (e.g. amine salts or quaternary ammonium salts), longchain aliphatic amines, partial amides formed by the reaction of fatty or rosin acids with aliphatic polyamino hydroxy compounds (e.g. the condensation products of ammonia or amines with halohydrins), hydroxy compounds (e.g. alcohols, glycols, or hydroxy acids), polyvalent metal soaps and the materials known under the Registered Trade Marks "Span" and "Tween."  Specific examples of suitable surface-active agents are listed.  The lubricating oil may be mineral oil, an ester of dicarboxylic acid (e.g. bis-2-ethylhexyl sebacate), an ester of an acid of phosphorus (e.g. an organic phosphate, phosphonate or phosphinate, particularly tricresyl or trioctyl phosphate), a polyoxyalkylene compound (e.g. ethylene oxidepropylene oxide copolymer or a polymer or copolymer prepared from polyalkylene glycols), a silicone, an organic silicate, a fluorocarbon or a halogenated aromatic.  If desired, the clay and a surface-active agent of the onium salt type may be reacted together to produce an onium clay.  A water-soluble acid (e.g. phosphoric, hydrochloric, sulphuric, hydrofluoric, silicic, boric, acetic, propionic, lactic or citric acid) may be added to the clay dispersion.  Antioxidants and anticorrosion agents (e.g. aromatic amines such as phenyl-a -naphthylamine and nitrites such as sodium nitrite) may be added to the grease composition.  Apparatus for carrying out the preparation of the grease is described.  In an example, the process is applied to the preparation of lubricating grease from hectorite, phosphoric acid, mineral lubricating oil and a partial amide formed by the action of tallow fatty acids on an ammonia-epichlorohydrin condensation product.  Specifications 727,353 and 728,779 are referred to.
Patent GB-474058-A (GB)
Title: Improvements in and relating to golf clubs and like striking implements
IPC: A63B53/14
Filed: 1936-04-28
Abstract: 474,058. Golf - club &c. handles. TINGEY, A. April 28, 1936, No. 12054. [Class 132 (ii)] A handle for a golf club or other striking implement having a ridge or ridges 5, 6, extending longitudinally down the grip in a predetermined relationship with the head of the implement to facilitate the correct hold, is characterized by the ridge or ridges being integral with the spirally wound elastic or flexible material comprising the grip.
Patent GB-939246-A (GB)
Title: New alkylene bis-dithiocarbamyl derivatives and fungicidal compositions containing them
IPC: A01N47/26
Filed: 1960-04-06
Abstract: The invention comprises compounds of the formula <FORM:0939246/IV(a)/1> where R1-R4 represent the same or different C1-C10 alkyl groups, X is O or S, and n is 2 or 3; and their preparation by (i) reacting an ethylene or propylene bis-dithiocarbamate with a dialkyl carbamyl or thiocarbamyl chloride; (ii) (when X = S) reacting a mixture of molar quantities of polyethylene thiuram disulphide or polypropylene thiuram disulphide and a suitable tetraalkyl thiuram disulphide with an alkali metal cyanide; (iii) (when X = S) reacting a suitable bis-(dialkyldithiocarbamyl)ethylene- or propylene-bis-dithiocarbamate with an alkali metal cyanide; and (iv) (when X=S) reacting a mixture of a suitable sodium dialkyldithiocarbamate and disodium ethylene- or propylene-bis-dithiocarbamate in molar ratio 2:1 with an amount of phosgene equimolar with respect to the first-named compound. The compounds of the invention are fungicides (see Group VI).ALSO:Fungicidal compositions comprise one or more compounds of the formula <FORM:0939246/VI/1> where R1-R4 represent the same or different C1-10 alkyl groups, X is O or S, and n is 2 or 3 (see Group IV (b)), and an inert solid or liquid carrier therefor, with or without dispersing agents, wetting agents, and/or other fungicides or pesticides.
Patent GB-632785-A (GB)
Title: Manufacture of cold-swelling starch products and of solutions of such products
Inventor: LOLKEMA JAN
IPC: C08B31/00
Filed: 1946-04-23
Abstract: Starch products capable of dissolving in cold water to form solutions which when dried by heating on a substratum in the presence of a substance which promotes condensation of starch with an aldehyde produce water-insoluble layers are made by heating a mixture of starch or a starch derivative with a proportion of water not greater than twice the weight of the starch or starch derivative and with an aldehyde, especially formaldehyde, or a substance yielding an aldehyde by decomposition, on a rotary drum while pressing mechanically to form a thin layer which dries simultaneously or immediately afterwards, more than 10 per cent of aldehyde, calculated on the weight of dry starch or starch derivative being employed and the heating on the drum being, at a temperature below 140 deg. C., and the Ph of the mixture so heated being preferably 5-7. Specifications 494,927 and 632,789 are referred to.  The Specification as open to inspection under Sect. 91 comprises also making cold swelling starch in the presence of more than 10 per cent of aldehyde at a temperature below 140 degrees C. without restriction otherwise on the mode of procedure, and the production of water insoluble layers from solutions of such cold-swelling starch merely by drying.  This subject-matter does not appear in the Specification as accepted.
Patent GB-664627-A (GB)
Title: Improvements in spray nozzles
IPC: B05B1/12
Filed: 1949-05-09
Abstract: 664,627. Spray-producers, &c. PARKES, J. A. May 1, 1950 [May 9, 1949], No. 12273/49. Class 69 (iii). A piston member 12, with a diametral bore 16, is moved back and forth within a nozzle 10 by a spindle 21 carrying pinions 20 engaging a toothed rack 17 integral with the piston, thus varying or cutting off liquid flow from an outlet 13. The spindle is rotated by a knurled knob 23 containing a leather washer 24 which is forced against the knob by a spring 25.
Patent GB-1305426-A (GB)
IPC: F23D14/78
Filed: 1970-03-13
Abstract: 1305426 Steelmaking CHEMETRON CORP 13 March 1970 [26 March 1969] 12278/70 Heading C7D [Also in Division F4] In a process for refining steel in a direct arc electric furnace using a water cooled burnerlance 10, oxygen supplied through inner pipe 11 in excess of the stoichiometric quantity is mixed with fuel supplied through concentric pipe 12 in a Venturi 24 and therefrom allowed to expand and burn. The oxygen stream is faster than the fuel stream which may be natural gas, hydrogen, propane or a liquid fuel such as fuel oil, pitch or tar.
Patent GB-275730-A (GB)
Title: An improved apparatus for testing motor vehicles
IPC: D04B9/28
Filed: 1926-05-12
Abstract: 275,730. Frost, W. May 12, 1926. Dynamometers; systems for testing motor vehicles. - Comprises a construction of selfcontained apparatus of the type having a platform carrying one or more movable track members adapted to be engaged and driven by the driving wheels of the motor vehicle, means for applying a measured braking force to oppose movement of the track members and means for measuring the rate of movement of the track members. A platform 1 is formed with a ramp 2 at each end. Two rollers 3, 4 spaced apart and arranged at each side of the platform are located so that they protrude above the upper surface to receive a driving wheel 24 of a motor vehicle. The rollers are longer than the width of a vehicle wheel to accommodate vehicles of varying track width. The rollers 3 freely rotate while the rollers 4 are mounted on a shaft 5. One element of a multipleplate clutch 8 is mounted on the shaft 5, the other element being rigid with a sleeve 9 loose on the shaft 5 and of limited rotary movement. The sleeve 9 has a crank-disc 10 a pin 11 on which is connected to one end of a rod 12, the other end of which affords an abutment for a stout spring 14 carried in a casting 15 pivoted to the frame member 7. The clutch is actuated by a lever 17 and linkage 18, 19, the lever 17 co-operating with a rack 17<a>. The compression of the spring is indicated on an instrument 20 by a band 21 attached to the sleeve and passing over a pulley 22. An instrument 23 including a speedometer and revolution counter is coupled to the shaft 5. A tie member 25 prevents the driving wheels moving off the rollers. Reference has been directed by the Comptroller to Specification 279,914.
Patent GB-141532-A (GB)
Title: Improvements relating to boilers of the marine type
IPC: F22B33/04
Filed: 1919-05-16
Abstract: 141,532. Turnbull, C. May 16, 1919. Marine-type boilers; water-circulation tubes in water-space.-In a marine boiler of the kind in which the gases are led from the combustion chamber C to the front of the boiler through one or more horizontal flues D fitted with vertical cross water-tubes E, some of the water-tubes are of larger diameter than the others and contain pipes F<1>, F<2> for improving the water circulation extending from near the water-level to the lower parts of the boiler.