baber/WOPTO huggingface dataset:
Patent GB-445172-A (GB)
Title: Improvements in or relating to dewaxing hydrocarbon oil
IPC: C10G73/06
Filed: 1935-10-22
Abstract: Paraffin-wax is separated from hydrocarbon oils such as lubricating oil distillates or petrolatum by adding methyl isobutyl ketone, chilling the mixture for example at 0 to -20 DEG  F., and separating the precipitated wax.  Methyl isobutyl ketone which is an anti-solvent for wax may be mixed with acetone.  Viscous oils may be diluted with gasoline, benzol or homologues thereof or with propane or butane.  The precipitated wax may be separated by centrifuging, filtration or by settling.
Patent GB-225876-A (GB)
Title: A method of and means for cleaning ashlar and other gables, floors or other parts ofbuildings
IPC: B24C3/06
Filed: 1924-12-06
Abstract: 225,876. Naamlooze Vennootschap Maatschappij Drop's Oudste Rotterdamsche Glazenwasscherij, (Assignees of Westerbeek, J.). Dec. 7, 1923, [Convention date]. Buildings, ceilings, floors, and walls, cleaning; cleaning by use of sand. - Apparatus for cleaning gables, walls, floors, &c. of buildings comprises a vehicle carrying means for electrically, pneumatically or mechanically driving pumice stones, brushes or other tools and simultaneously supplying to the surface steam or hot water impregnated with sand or soda. As shown in plan the apparatus is arranged on a motor vehicle- 1 the engine 5 of which drives through a shaft and belting a dynamo 2 connected through a switchboard 6 to a number of terminals 7 on a board 8. Cables 9 connected to these terminals convey power to small portable motors 10 driving tool-holders 11. A steam boiler 12 is connected by a pipe 13 to one or more connections 15 on the board 8 for flexible pipes 16 provided with jet-pipes 17. A reservoir 20 for sand or soda has at its base a feed screw driven through gearing 26, 27 from a motor 32, which forces sand or soda into the pipe 13. This reservoir is also connected through a valve with the steam space of the boiler so that it may be blown through with steam if it becomes clogged. A pump 35 driven by a motor 360 supplies cold water from a reservoir 36 either to the boiler 12, through a pipe 39, or to the pipe 13 and thence to the jets 17, through a branch pipe 40 with a valve 41. The operator controls the tool with one hand and directs a flow of washing or rinsing fluid with the other.
Patent GB-444648-A (GB)
Title: Improvements relating to electric light fittings
IPC: F21S13/00
Filed: 1934-10-15
Abstract: 444,648. Electric lamps for coalmines &c. ELLISON, Ltd., G., and ANDERSON, J., Wellhead Lane Works, Parry Barr, Birmingham. Oct. 15, 1934, No. 29434. [Classes 75 (ii) and 75 (iv)] An electric lamp, e.g. for illuminating the coalface in a coal-mine, is provided with a hemispherical or other dishlike glass or other transparent front piece d, and a truncated conical reflector e mounted in the front piece with its axis horizontal so as to reflect light laterally and to allow some light to pass centrally through the reflector, a number of small perforations h being provided in the reflector. The front-piece d is held in position by a ring c carrying a guard ring i by arms k. Wire supports f clamped between the casing a and the front-piece f support the reflector e. A rear reflector l may be provided in the lamp.
Patent GB-655759-A (GB)
Title: Center screw conveyer bearing
IPC: B01D33/00
Filed: 1948-11-12
Abstract: 655,759. Bearings for screw conveyers. GENERAL AMERICAN TRANSPORTATION CORPORATION. Nov. 12, 1948, No. 29472. Convention date, Nov. 12, 1947. [Class 78 (i)] [Also in Group XXXIV] A screw conveyer for mounting in the lower portion of a vat or the like for conveying material in the vat towards an outlet port, comprises a bearing assembly 36 which is provided for supporting said screw conveyer intermediate its ends including a flange fixed to the shaft of the conveyer and having a peripheral bearing surface co-operating with a bearing fixed on a bearing bracket which is adjustable and is mounted on a wall of said vat to permit supported rotation of said shaft while being vertically adjustable to position said conveyer and said bearing, the top of said bearing and adjacent portions of said bracket being tapered upwardly and inwardly to form sloping surfaces to divert material which falls into said vat from said bearing. Figs. 1 and 2. General.-Wax is scraped off rotating filter drum 22 by blade 24 and falls into vat 18 whence it is discharged by conveyer 10, which consists of oppositely-threaded screws driven by a motor and falls into shoot 30. Fig. 3. Centre bearing 36.-Conveyer 10 is supported at its centre by bearing 36, the conveyer shafts 12 and 13 have rigid flanges 74 and 76 bolted together by bolts 88, the said flanges being supported within bearing ring 92 fixed on bracket 94 adjustably secured by bolts 96 in slots 110 to wall 20. Ring 92 is formed with sloping surfaces 111, 112 so as to shed any wax that falls thereon. Fig. 5.-End bearing for flow of heating fluid through hollow conveyer shafts 12 and 13 to prevent adhesion of wear to the screw. Fluid from pipe 48 enters inlet chamber 45 and passes through passage 50 to the exterior of tube 42 (which passes through the centre of the hollow screw shafts 12 and 13) and returns through the interior of said tube 42 to discharge chamber 52. The shaft 13 runs in bearings 34 (and the shaft 12 similarly) protected from oil by seal 35 and axial movement of oil is further prevented by seal 68 and by seals 66 and 64 which seals are compressed by the common spring 70 said spring is enclosed in bellows 72 to which air is admitted at 73 and carries away the leaking oil therefrom at 69.
Patent GB-909148-A (GB)
Title: Improvements in or relating to the production of orthophosphate solutions
IPC: H01Q1/42
Filed: 1960-08-26
Abstract: Aqueous alkali metal orthophosphate solutions are concentrated by contacting them with phosphorus pentoxide produced by the combustion of phosphorus in an oxygen-containing gas.  Phosphorus introduced through a line 2 (see the drawing) is burnt by a burner 3 in air in a tower 1.  The phosphorus pentoxide formed passes through a mist resulting from the atomization <PICT:0909148/III/1> of orthophosphate solution introduced by a line 4.  Solution also is introduced by line 5 and flows down the walls of the tower 1. Concentrated solution is removed by a line 6, and may be recycled, partially or wholly.  A fan 8 draws air through the tower 1 and so removes water vapour, any unabsorbed phosphorus pentoxide or suspended droplets of solution being removed in vessel 9 after passing through a tower 13 containing a mist of orthophosphate solution.  The starting solution may be a crude sodium phosphate solution obtained by reacting sodium carbonate or hydroxide with impure phosphoric acid obtained by reacting calcium phosphate ores with sulphuric acid.  In examples solutions of disodium hydrogen phosphate and trisodium phosphate are concentrated.
Patent GB-155698-A (GB)
Title: Improvements in telephone and like circuits
IPC: H04M1/74
Filed: 1919-11-27
Abstract: 155,698. Western Electric Co., (Western Electric Co.). Nov. 27, 1919. Telephone systems.-A substation circuit comprises a transmitter T, a receiver R, a three-coil transformer N1, N2, N3, and an auxiliary resistance X, arranged as shown in Fig. 3, and is so designed that (1) the impedance of the transmitter T is equat to the impedance of the rest of the circuit, including the line L. as seen from the transmitter, whereby the telephonic energy delivered by the transmitter is a maximum, (2) theimpedance of the line L is equal to the impedance of the substation network, as seen from the line, whereby the proportion of energy delivered by the line to the substation is a maximum, (3) thÚ transmitter T and receiver R are conjugate, so that there is no " side-tone," i.e. the transmitter is without effect on the neighbouring receiver, (4) the line L is conjugate with the auxiliary resistance X, so that when the substation is receiving energy from the line no energy is wasted in thisresistance. Calculations are given for proportioning the several resistances substation network and of the line and the ratios of the 3-coil transformer N1, N2, N3 so as to secure these results, and it is shown how it is possible, at a small sacrifice of efficiency, to discriminate against noises originating in the line. If the impedance of the line includes a considerable reactance component the resistance X is correspondingly corrected; for example, in the case of a submarine cable having distributed capacity the resistance is shunted by a condenser. Modified circuits equivalent to that shown in Fig. 3 are described; for example, the coil N1 may be between the transmitter and receiver meshes, and the resistance X may be incorporated in the coil N3. Fig. 7 shows an equivalent circuit for a local-battery substation, the transmitter T and receiver R being fed in parallel by a local battery B, while a large impedance separates their circuits so far as voicecurrents are concerned. The invention is applicable to repeater circuits.
Patent GB-391231-A (GB)
Title: Improvements in or relating to multi-roll grinding mills
IPC: B02C4/22
Filed: 1931-10-27
Abstract: 391,231. Roller and roller-and-breast mills. MACCALLUM, A. E. G., 35, Garratt Lane, Wands worth, London. Oct. 27, 1931, Nos. 29782 and 29783. [Class 59.] In a roller mill a hopper co-operating with the grinding roll is divided into compartments containing a grinding element or elements so arranged that multiple grinding can be effected within the hopper by transferring material under treatment from one compartment of the hopper to the other. As shown in the Figure, a hopper 3 with base 4 is pivotally mounted on a rod 26 and is divided into two compartments A, B by a partition 5, the end of which houses a grinding bar 7 adapted to be pressed into contact with a roll 1 by means of screwed rods 8. A roll 10, which may be reciprocated, is loosely mounted in the compartment A and is rotated bv frictional contact with the roll 1. Stirrers 19, 20 are mounted in the compartment A, B respectively and are independently driven. A valve-controlled outlet 30 is fitted to the chamber B and a spring-pressed scraper 32 removes the paint &c. adhering on the roll 1. A slidable gate 11, movable by a rod 12 is adapted to partially cover an orifice in the partition 5 and forms a weir over which the paint &c. collected in the chamber B returns to the chamber A for regrinding. Powder and liquid are fed into the chamber A and are mixed by the stirrer 19, the roller 10 crushing any lumps contained therein. The mixture passes under the grinding bar 7 and gradually fills the chamber B from which it passes over the weir to the chamber A for regrinding. When the grinding is complete the material is removed through the orifice 30. The mill is cleaned by withdrawing the scraper 32 so that the unground material is removed by a scraper 36. The hopper is then unclamped from the framework 2 and revolved on the rod 26, the loose roll 10 being supported on guides 29. In a modification the hopper is divided into three compartments and the grinding bars may be mounted radially with respect to the roll 1. The hopper may be applied to the last roll of a series, a separate mixing and feed-roll being furnished for the first roll of the series. The hopper base and roll may be heated or cooled. A narrow grinding bar may replace the scraper 32 and a tray, preferably provided with partitions near the end thereof, may be provided to collect the material passing under the bar. The coarse material collected in the end compartment is returned for regrinding.
Patent GB-1090179-A (GB)
Title: Improvements in or relating to slide projectors
IPC: G03B23/02
Filed: 1966-07-04
Abstract: 1,090,179. Slide changing apparatus. FRANKE & HEIDECKE G.m. b. H. [trading as REOLLEIWERKE FRANKE & HEIDECKE]. July 4, 1966 [July 13, 1965], No. 29923/66. Addition to 1, 032, 067. Heading G2J. The projector of the parent Specification is improved by the inclusion of a pusher rod 22 bearing a roller 23 and actuated by a cam 21 on the crank arm 11 which operates the slide-moving claw 13, the roller 23 moving above the slide chute transversely to the image gate to disengage the bottom edge of a slide leaving the gate from the top edge of the next slide.
Patent GB-1065091-A (GB)
Title: Swing door actuating mechanism
Inventor: DALLEY LEONARD CHARLES
IPC: E05F15/04
Filed: 1963-07-30
Abstract: 1,065,091. floor actuating means. DBANS AND LIGHTALLOYS Ltd. July 28, 1964 [July 30, 1963], No. 30071/63. Heading E2M. A swing door actuating mechanism operated by either a foot pad or by photo-electric cell means comprises a piston 24 which is slidable within a cylinder 22 and transmits rotary motion to a door drive spigot 10. Through a flexible connection in the form of a series of balls 26 or rollers guided in tracks (320 Fig. 7) and abutting against a vertical face 20 of a cam 16 integral with the door spigot, the cam engaging a roller 40 to compress springs 56, 58. When the door is opened the cylinder and piston arrangement 24, 22 is made inoperative ,by means of the micro-switch 60 and the door is urged to the closed position by means of ,the springs 56, 58. The piston may be either hydraulically or pneumatically operated or may ,be the plunger of a solenoid.
Patent GB-708814-A (GB)
Title: Improvements in or relating to setting fabric
Inventor: MECKLENBURGH GEORGE KEVIN
IPC: D06M11/57
Filed: 1950-12-08
Abstract: Fabrics containing yarn having fibres of a synthetic linear condensation polymer are set by applying an aqueous emulsion and/or solution of an organic swelling agent for the polymer boiling above 160 DEG  C., optionally in conjunction with electrolytes, and then heating the treated fabric in a dry hot zone maintained at a temperature of from 160 DEG  C. up to 10 DEG  C. below the melting point of the polymer.  Specified swelling agents for the polymer are benzyl alcohol, phenol, m-cresol, ethylene glycol, glycerol, a - and b -dichlorhydrin, N-diethyl formamide and aniline.  Heating may be effected by hot air, superheated steam, a heated roller or infra-red radiation.  The fabric may be dried prior to heating.  Specified polymers are polyureas, polyurethanes, polyesters such as polyglycol terephthalate and polyamides such as polyhexamethylene adipamide, polytetramethylene adipamide, polyoctamethylene adipamide, polydecamethylene adipamide, polyhexamethylene sebacamide and polypentamethylene sebacamide.  Specified electrolytes are aluminium sulphate, magnesium sulphate, sodium chloride and sodium thiosulphate.  Specification 708,815 is referred to.
Patent GB-1255537-A (GB)
Title: Process for the preparation of phenylpropanals and phenylpropanols
IPC: C07C45/50
Filed: 1969-06-27
Abstract: 1,255,537. Phenylpropanals. RUHRCHEMIE A.G: 27 June, 1969 [24 July, 1968], No. 30083/69. Heading C2C.  Phenylpropanals are obtained by hydroformylating styrene with CO and H 2  at 80- 200‹ C. and 50-500 atmospheres pressure in the presence of a rhodium catalyst containing 0À05-0À000125% by weight of rhodium based on the styrene. The phenylpropanals can be hydrogenated to phenylpropanols, either with CO and H 2  without the separation of the rhodium catalyst or the addition of another catalyst, or in the presence of a copper chromite catalyst.
Patent GB-1279187-A (GB)
Title: Process and apparatus for stretching a thermoplastic resin film
IPC: B29C49/00
Filed: 1970-06-22
Abstract: 1279187 Stretching tubular films CHISSO CORP 22 June 1970 [21 June 1969] 30214/70 Heading B5B Tubular films made from thermoplastic resins are stretched by passage downwards around a mandrel which is supported, wholly within the film, by means of pressure exerted through the walls of the film by two or more rolls mounted outside the film co-operating with rolls connected to the mandrel and mounted vertically above it. In the embodiment shown in Fig. 1, the film is supplied from the roll 1, passed over preheating rolls 2, which may be replaced by other heating means, between pinch rolls 3, and is then opened out to pass downwards over the mandrel 9. Before the mandrel, the film passes around plate 5, which is suitably an ellipse or in the shape of an oblong whose short edges are replaced by semicircles. Plate 5 carries a pair of rolls 6 and is connected to mandrel 9 by means of supporting rod 8. The rolls 6 co-operate with supporting rolls 7 which are outside the film and so the mandrel 9 is supported by pressure exerted through the walls of the film. The film 4 is stretched over the mandrel 9, which has a frusto-conical form, stretching being facilitated by heating with infra-red heaters 10. The film is then passed over free-running roll 11, through the pinch rolls 12 and then wound up on the winder 13. The film may be longitudinally stretched between pinch rolls 12 and rolls 2, 3 and 4 which are all driven at the same speed. The infra-red oven 10 may be replaced by other heating means such as an electric oven. A hot-air oven or even by immersing the apparatus in a hot water tank.
Patent GB-252039-A (GB)
Title: Improvements in fertilizers
IPC: C05G3/70
Filed: 1924-12-16
Abstract: 252,039. Fielding, W. R. Dec. 16, 1924. Manures.-A fertilizer is made by treating an organic base with deliquescent fertilizing materials such as potassium carbonate or sodium nitrate and with an efflorescent substance such as sodium carbonate, sodium sulphate or alum. Straw, hay, bracken, peat, sawdust, wood-pulp, fishmeal, bonemeal, chaff, hops, sewage sludge or settlings, soil containing organic matter, town refuse and sods are mentioned as suitable bases. The base may be first impregnated in a bath of the efflorescent material and then in a bath of the diliquescent, or both substances may be dissolved in a single bath. The efflorescent and deliquescent substances may also be added to the base in solid form. Other materials may be added to make up for deficiencies of clay, calcium or phosphate in the soil.
Patent GB-1514856-A (GB)
Title: Dust collecting suction apparatus having an indication
IPC: A47L9/19
Filed: 1976-07-22
Abstract: 1514856 Vacuum cleaners ELECTROLUX Ltd 22 July 1976 [29 Aug 1975] 30624/76 Heading A4F [Also in Division Gl ]  Dust collecting suction apparatus includes a contents indicator comprising a cylindrical member 13 rotatably mounted in a transparent cylinder 11  connected to the interior of the dust container, the decrease in container pressure as it fills causing the member to rotate. The rotation is produced by a nut 20 carried by a diaphragm 21 moving  against spring 23 as pressure drops in chamber 22. A retaining device comprises normally engaging teeth on end-walls 16, 26 of cylinder 11 and member 13. When pressure in chamber 22 falls the nut must move member 13 a distance "A" before the teeth disengage and allow the member to rotate.
Patent GB-323835-A (GB)
Title: Improvements in methods of and furnaces for annealing wire-or band-rings of iron or another metal by inductive heating
IPC: F27D11/06
Filed: 1928-10-24
Abstract: 323,835. Arpi, R,. and Dahlquist, G. J. M. Oct. 24, 1928. Induction furnaces. -Metal wires or bands to be annealed are wound into rings and the free ends thereof are connected together by welding or other method after which the rings are mounted to form short-circuited secondary coils of a single or polyphase transformer. Several such coils e are threaded on the limbs of a water cooled core a and enclosed in a chamber b having a removable cover g. The core is closed by a removable yoke f and carries a primary winding d. The part of the core in the chamber is heat insulated. The coils e may be short-circuited in series or parallel. Reference has been directed by the Comptroller to Specifications 106,332, 139,881, 291,483 and 297,311.
Patent GB-1323256-A (GB)
Title: Diposal of plastics waste
IPC: F23G7/12
Filed: 1971-07-01
Abstract: 1323256 Burning plastic waste; burners PREUSSAG AG METALL 1 Jnly 1971 [19 Feb 1971] 30956/71 Heading F4B and F4T Plastics waste or by-products in solid, pasty or liquid form are converted to combustible form, burnt, and the exhaust gases and fly ash cooled before separating the fly ash for recovery of metals or metals compounds. A container 1, to which the waste is fed, is heated to melt it or bring it to a suitable temperature for combustion, and mixed with combustion promoters if necessary. Circulating pumps may be used, and solid waste may rest on a grate and have a stream of molten waste directed on to it to accelerate the melting. Molten waste is conveyed by a pump 7, to a burner nozzle 2 in a combustion chamber 3. The pump 7 and the conduit for the waste are enclosed in a sand jacket which is heated. The waste gases and fly ash from combustion chamber 3 are cooled in heat exchanger 4 and cooler 5 and the fly ash is separated at 6, which may be a cloth-tube filter. The molten waste is fed to the combustion chamber 3 through a burner, Fig. 3, having two inlets 24, 25 to a central nozzle 16 surrounded by an air nozzle 18. The outer nozzle 18 and inner nozzle 16 are carried by the feed connection piece 21 with two perpendicular channels 22, 23 communicating with inlets 24, 25 and the lance 17. The outer nozzle carries an air inlet 15. A plug 29 at the end of the axial feed passage 23 enables the burner to be cleared without interrupting the flow. Combustion air may be preheated in the heat exchanger 4. The fly ash recovered, which contains oxides or other inorganic compounds of metals such as titanium, antimony, tin, cobalt or germanium, may be recycled by adding it to the raw materials mix for the plastics.
Patent GB-1188409-A (GB)
Title: Telescopic Tubes
IPC: B64C3/40
Filed: 1967-07-05
Abstract: 1,188,409. Telescopic tube, rotating couplings. AVIONS MARCEL DASSAULT. 5 July, 1967 [24 Feb., 1967], No. 31025/67. Headings F2G and F2P. A telescopic tube comprises cylinders 10, 12 fixed in relationship to each other and a third cylinder 13 disposed therebetween and slidable in a sealed manner through an aperture at the end 11 of the tube 10, the cylinder 13 having a piston 43 slidable in a sealed manner between the first two cylinders, an orifice 16 being provided in the wall of cylinder 13, the crosssectional area S of the cylinder 13 being made equal to the sum of the cross-sectional areas of the annuli 47, 48. As the tube is extended telescopically the volume of fluid therein does not change. A crenellated flange 17 on the cylinder 13 limits the extension of the tube. The ends of cylinders 10 and 12 are provided with a universal joint comprising three rotating joints; the space 62 is open to atmosphere through passage 25. The external end of cylinder 13 is provided with a somewhat similar universal joint.
Patent GB-617697-A (GB)
Title: Improvements in snow ploughs
IPC: E01H5/02
Filed: 1946-10-18
Abstract: 617,697. Snow ploughs. SPENCER, A. Oct. 18, 1946, No. 31027. [Class 107] A V-shaped snow plough has one side a perpendicular to th( wheel axle j, the inclined side b being provided with an ex tension c that is parallel to the side a Connections e and cross connections secure handles d to to the bottom and top of the plough the road wheels i o which can be brought into or out of contact with the ground by pegging a vertical bar m, from which is suspended the wheel axle j, against a cross bar n. A towing bar g is provided at the apex of the V and the edges of the plough are provided with a wear-resisting strip q. The Provisional Specification refers to a plurality of vertical bars m.