baber/WOPTO huggingface dataset:
Patent GB-1493645-A (GB)
Title: Liquid-level sensing means and methods
IPC: H01H36/02
Filed: 1975-06-16
Abstract: 1493645 Liquid level indication SAABSCANIA AB 16 June 1975 [17 June 1974] 25560/75 Heading G1H [Also in Division H1] A method of sensing the position of the free surface of a liquid within a container which may undergo angular displacement relatively to an axis fixed relative to the container uses a float-switch comprising two magnetically actuable contacts 13, 15 enclosed in a liquid tight tubular casing 1 in the container, and a float assembly of a buoyant body 22 and a permanent magnet 23 rotatable about and tethered to or by the tubular casing, the arrangement being such that when displacement of the float by the liquid causes the magnet to be remote from the casing the contacts are not operated and the switch is open but when displacement of the float by the liquid causes the magnet to be adjacent the casing the contacts are operated and the switch is closed, any rotation of the liquid container about the axis being compensated for by a compensatory rotation of the float assembly and the displacement of the float by the liquid taking place in a similar manner irrespective of the degree of the rotation of the container. In the embodiment described, the buoyant body and the magnet are mounted on diametrically opposed positions of a ring 20 which is freely rotatable about the tubular casing 1  between two guide walls 16, 17, the inner diameter of the ring being sufficiently larger than the outer diameter of the tubular casing to allow movement of the magnet 23 between positions where it has an effect and has no effect on the contacts. The switch is described as used in aircraft fuel tanks for automatically regulating the supply of liquid to the fuel tanks.
Patent GB-484961-A (GB)
Title: Means for conveying loose material such as sand or the like, more particularly material which tends to cake
IPC: B65G33/00
Filed: 1937-09-21
Abstract: 484,961. Screw conveyers. DEUTSCHE EISENWERKE AKT.-GES. Sept. 21, 1937, No. 25566. Convention date, Oct. 19, 1936. [Class 78 (i)] A means for conveying loose material which tends to cake, such as sand containing clay and the like, consists in a conveyer trough with walls made throughout their thickness of flexible material and a conveyer worm inflexible in the direction transverse to its axis and arranged in the trough. The trough walls may be made of rubber, fabric, flexible thin sheet metal, flexible armoured metal hose or tubing, or wire fabric.
Patent GB-1379980-A (GB)
Title: Pretreatment of caking pit coals to render them suitable for briquetting
IPC: C10B49/08
Filed: 1972-06-02
Abstract: 1379980 Coking coal ESCHWEILER BERGWERKS-VEREIN 2 June 1972 [11 June 1971] 25801/72 Heading C5E A process for rendering coking coal having a swelling index less than 5 suitable for hotbriquetting comprises heating the coal, which should have a grain size up to 14,000 Á, to 400‹ C. in a stream of hot gas with simultaneous horizontal movement of the coal by the gas, at a heating rate of about 1000‹ C. per second. In an illustrated embodiment, a portion of the coal is burnt to provide the hot gas which is passed through a horizontal pipe to which predetermined quantities of the rest of the coal are delivered at spaced points. Water coolers precede and/or succeed a cyclone separator downstream of the pipe.
Patent GB-592268-A (GB)
Title: Manufacture of vat dyestuffs
IPC: C09B5/36
Filed: 1944-12-27
Abstract: Vat dyestuffs are obtained by heating 4-amino -anthraquinone - 2 : 1 (N) - acridone of the formula <FORM:0592268/IV/1> the Bz ring of which is free from substituents, with a p-halobenzoic acid or a functional derivative thereof (which may be further substituted in the nucleus with halogen) preferably in the presence of an inert solvent such as nitrobenzene or dichlorobenzene.  In examples, 4 - aminoanthraquinone - 2 : 1 - (N) - acridone is heated with (1) p-bromo-benzoyl chloride or the p-chloro- or p-fluoro-benzoyl chlorides; (2) p-iodobenzoyl chloride; and (3) 3 : 4-dichlorobenzoyl chloride or the corresponding bromine compound.  In example (4), cotton or viscose artificial silk is dyed from a hydrosulphite vat of the product obtained in (1), fast blue shades.  Specification 25184/10, [Class 2 (iii)], is referred to.  The Specification as open to inspection under Sect. 91 also includes treating the resulting dyestuffs with agents capable of introducing substituents, e.g. with agents yielding halogen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-506566-A (GB)
Title: Improvements in treatment of rubber and similar oxidizable materials
IPC: C08K5/18
Filed: 1938-09-06
Abstract: 506,566. Preserving rubber, oils, etc.; antioxidants. UNITED STATES RUBBER PRODUCTS, Inc. Sept. 6, 1938, No. 26009. Convention date, Sept. 11, 1937. [Class 70] [Also in Groups III and IV] Rubber and the like and other oxidizable materials, e.g. unsaturated fatty oils, essential oils, petroleum oils and their derivatives such as gasolines, soaps, aldehydes and synthetic resins, are preserved by incorporating a small proportion, e.g..1 to 5 per cent of a carboxy-alkyl-amino-diarylamine. These have the general formula where R1 is an aryl group, R2 is an arylene group and Y is a carboxy-substituted alkyl group. The carboxy group itself may be unsubstituted or substituted. The compounds may be made for example, by the interaction of a primary-amino-substituted diarylamine and a halogeno-carboxylic acid or derivative thereof. In an example, equimolecular proportions of p-amino phenyl-p-tolylamine, monochloro acetic acid, and, anhydrous sodium acetate are heated together in alcoholic solution for about one hour. The solution is then made alkaline with dilute aqueous sodium hydroxide and filtered. The filtrate is acidified and the white precipitate which is formed is filtered off, washed and dried. It is belived to have the formula and may be termedp-(p-tolyl amino)-phenyl. glycine. A list of examples of primary secondary aromatic amines, derivatives of which constitute the preservatives of the invention, is given in the Specification, and also examples of substituted carboxy groups and halogeno compounds. In vulcanizing rubber, the preservatives are preferably employed in conjunction with an organic amine adapted to neutralize any retarding effect of the preservative.
Patent GB-636632-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/86
Filed: 1947-09-26
Abstract: 636,632. Electrostatic precipitation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 26, 1947, No. 26149. Convention date, Sept. 28, 1946. [Class 39 (i)] In an electrostatic precipitator the electrodes formed as a plurality of plates of insulating material covered with conductive material, are supported by metal rods passing through perforations in the plates, the conductive material being omitted around the perforations in alternate plates. The plates may be of fibre glass coated or plated with a metallic coating. The grounded precipitating electrodes 18 and the insulated electrodes 17 of a precipitator of the two-field type such as described in Specification 475,443 are supported on the rods 19, 25. The metallic coating is omitted from the plates 17 at 21 around the rods 19, and from the plates 18 at 26 around the rods 25. Cylindrical metal spacers 22 extend around the rods 19, 25 and space the electrodes 17 and 18 apart, and the outer electrodes 17 from the walls of the cabinet of the precipitator. The rods 19 are secured to the walls of the cabinet by threading nuts on their outer ends, and the rods 25 are similarly secured to the outer electrodes 17 of the electrode assembly.
Patent GB-224880-A (GB)
Title: Improvements in or relating to electric hot-plates
IPC: H05B3/68
Filed: 1924-11-03
Abstract: 224,880. Forget, P. E. Nov. 13, 1923, [Convention date]. No Patent granted (Sealing fee not paid). Wire and ribbon resistances, embedded and encased.-A cast-iron plate A is heated by resistances C arranged between mica sheets E and pressed against the plate A by means of an iron plate G, an asbestos sheet F, bolts D, and angle irons H. The heating elements are enclosed in a metal casing I filled with sand J. A switch-K is provided to permit different heating combinations.
Patent GB-1390668-A (GB)
Title: Shaped products of bonded granules of porous material
IPC: C04B26/04
Filed: 1972-06-05
Abstract: 1390668 Moulding filters NORIT NV 5 June 1972 [7 June 1971] 26202/72 Heading B5A [Also in Division C1] Shaped porous articles have an open structure of porous granules linked by fine particles of normally solid thermoplastic polymer, and are made from granules possessing an open porosity by heating a mass of the granules to a temperature above the initial point of the softening range of the polymer, mixing a stream of falling heated granules with a stream of falling polymer particles which have not been previously heated, collecting the resulting mass of granules having adherent polymer particles and shaping the mass utilizing minimum shearing forces so that the open porosity of the material is retained. Preferably the thermoplastic binder has a particle size of from 80 to 200 microns, and may be used in a proportion of from 10-20% by weight of the granules. The granules may be heated by a stream of hot gas. The binder used may be polyethylene or a copolymer of ethylene with no more than 25% by weight of vinyl acetate. Planar panels of bonded particles may be made by collecting the composite particles on an advancing belt, levelling and compressing the web formed, severing pieces of desired size and cooling. In a preferred embodiment, the composite granules are collected on an imperforate belt of metal covered with a porous paper or polyester web running along with the belt, the web of granules levelled and passed supported by the paper or polyester web on to a second perforated metal belt, the web being cooled by passing cooling air through the web of particles, the web of paper or polyester and the perforated belt. If desired at least one major surface of the levelled particle web may be reheated to above the softening point of the binder. The porous particles used may be active carbon, ion exchange material, molecular sieves, lava, pumice or silica gel. Substantially all the pores of the independant particles are open to the ambient atmosphere.
Patent GB-1407569-A (GB)
Title: Process for preparing ethylene homo-or co-polymers and  the catalyst therefor
IPC: C08F4/64
Filed: 1973-06-01
Abstract: 1407569 Tri-component Ziegler catalyst ASAHI KASEI KOGYO KK 1 June 1973 [8 June 1972 (2)] 26223/73 Heading C3P [Also in Division C2] Ethylene is homo- or copolymerized in the presence of as catalyst (A) a hydrocarboninsoluble reaction product of (i) an organoaluminium compound of the formula R a Al(OR) 3-a , where R is a hydrocarbon group and a is 2À20 to 2À85, with (ii) a titanium compound containing at least three halide groups, at a temperature up to 50‹ C., (B) (iii) an organo-aluminium compound of the formula R b Al(OR) 3-b  where b is 2À02 to 2À20, or (iv) a compound of the formula AlR c (OR) d X 3-(c+d)  where X is halogen, c is 1À0 to 2À0 and d is 0À1 to 0À9, and (C) a titanium compound of formula (RO) e TiCl 4-e  where e is 1À0-2À0. Components A (i) and B (iii) can be obtained by reacting the corresponding trihydrocarbyl- and trihydrocarbyloxy-aluminium compounds, while component B (iv) may be obtained by reaction of the corresponding dihydrocarbyl aluminium hydrocarbyloxide and hydrocarbyl aluminium mono-, di- or sesquihalides. In typical examples polyethylene or ethylene-propylene copolymer are obtained using heptane reaction medium and hydrogen gas, and catalysts of (A) (C 2 H 5 ) 2À40  Al(OC 2 H 5 ) 0À60  - TiCl 4 (C 2 H 5 ) 2À80 Al(OC 2 H 5 ) 0À20 - TiCl 4 (C 2 H 5 ) 2À80 Al(OC 2 H 5 ) 0À20  - TiCl 3À5  - (OC 4 - H 9 ) 0À5 , (i-C 4 H 9 ) 2À4 Al(OC 2 H 5 ) 0À6  - TiCl 4  or (CH 3 ) 1À0 (C 2 H 5 ) 1À55 Al(O-n-C 4 H 9 ) 0À45  - Ti(O-n- C 4 H 9 ) 0À5 Cl 3À5 , (B) Al(C 2 H 5 ) 2À20 (OC 2 H 5 ) 0À80  or (n - C 6 H  3 ) 2 Al(OC 2 H 5 ) 0À67 Cl 0À33 , and (C) T : (OC 4 H 9 )Cl 3 , Ti(OC 4 H 9 ) 1À5 Cl 2À5 , Ti(OC 8 H 17 )Cl 3  or Ti(OC 2 H 5 ) 2 Cl 2 , or, in control procedures, TiCl 4  or Ti(OC 4 H 9 ) 4 .
Patent GB-737973-A (GB)
Title: Semi-trailers with readily removable bodies
IPC: B60P7/13
Filed: 1953-09-23
Abstract: 737,973. Traitors; vehicle body mountings. CIOCCA, G. Sept. 23, 1953 [Sept. 24, 1952], No. 26241/53. Classes 108 (1) and 108 (2). A semi-trailer having a body which may be removed from the tractor 3 and bogie 5, Fig. 1, and transported on a railway truck, is mounted on king-pins 2 and 6 on the tractor and bogie respectively. In a modification, Fig. 2, the king-pins 2 and 6 are at different distances from the line of action of the C.G., so that the tractor may take a smaller proportion of the load than the bogie 5, and alternative king-pins 2a and 6a are provided for use when the trailer is to be towed by a tractor hitched to the end BD. Latches 7 and 8 are provided for locking the body to the bogie and tractor respectively, locking of latch 8 with simultaneous unlocking of the latch 7 conditioning the vehicle for backing. The body is provided with two landing gears 10, 11, pivotable about 22, 23 and provided with rollers 24, 25 serving to support the body on release from the tractor 3 and bogie 5.
Patent GB-235129-A (GB)
Title: Improvements in or relating to the manufacture of hydrogen by the partial liquefaction of gaseous mixtures containing the same
IPC: F25J3/02
Filed: 1924-11-04
Abstract: 235,129. Soc. l'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. June 3, 1924, [Convention date]. Separating gaseous mixtures by liquefaction.-In the separation of hydrogen from gaseous mixtures, such as coke oven or illuminating gas, by partial liquefaction, the liquid which contains nitrogen produced in the process is subjected in an auxiliary column to a progressive rectification or vaporization under the pressure of the liquefaction, the gas rich in nitrogen thus produced being returned to the place where the liquid is produced, and the residual liquid substantially free from nitrogen being evaporated to effect the partial liquefaction. The liquefaction column is provided with an upper nest of tubes B for the final liquefaction, and an auxiliary rectification column C is in open communication with the collector D at the bottom of this nest of tubes. The cooled compressed gas to be treated is delivered by a pipe G partly to the lower nest of tubes H in the main column and partly to the vaporizer V at the base of the column C. The liquid from the vaporizer is passed through the pipe E to the compartment I surrounding the tubes B. The liquid produced in the nest of tubes in the vaporizer V is passed through the pipe L to mix with the liquid in the main column. The unliquefied gases in these tubes are passed through a pipe Z into the collector D. The compressed gas may be admitted to the main column at a lower pressure than to the auxiliary column, by manipulation of the valve X. Specification 174,327 is referred to.
Patent GB-381698-A (GB)
Title: Improvements in or relating to flushing apparatus for lavatories or the like
IPC: E03D1/12
Filed: 1931-09-21
Abstract: 381,698. Siphon-discharge waterwaste-preventers. DOBB, W., 22, West Lane, Edwinstowe, and GLOVER, 0., County Police Station House, Potter Street, Worksop, both in Nottinghamshire. Sept. 21, 1931, No. 26310. [Class 26.] The discharge from an air-release siphondischarge water-waste-preventer takes place through a tube 4 projecting into a water seal 7 constituted by an upstanding wall 8 within a well 6 disposed beneath the cistern, the pressure within the bell 10 being released to start the flush by means of a release-valve 13 fitted to a pipe 12 extending to a point outside the cistern. In addition to the usual overflow 14, a second overflow 5 leading to the well 6 may also be provided. The outlet 9 may communicate with a number of flushing pipes.
Patent GB-504886-A (GB)
Title: Spool device for hair permanent waving apparatus
IPC: A45D2/32
Filed: 1938-09-09
Abstract: 504,886. Hair-waving devices. CARL. SSON, A. Sept. 9, 1938, No. 26328. [Class 131] In permanent hairwaving devices wherein the hair is clamped between two pivoted rubber-covered limbs 1, 2 and then grasped between the pivoted limbs 10, 11 of a spool on which the hair is wound, a helical spring 13 on a reduced end of' the limb 10 allowing one-way winding, has a tangential end piece -14, which betvrc on the adjacent face of t,lte clamp to prevent unwinding of the spool.
Patent GB-445518-A (GB)
Title: Improvements relating to method of and apparatus for treating plastics
IPC: B29B7/56
Filed: 1935-09-24
Abstract: 445,518. Kneading plastics. WINGFOOT CORPORATION, Wilmington, Delaware, U.S.A. Sept. 24, 1935, No. 26433. Convention date, Jan. 30. [Class 86] Plastic material such as rubber is kneaded in a machine comprising a number of parallel rolls arranged to form a trough with small spaces between adjacent rolls which are rotated in such a manner as to draw the material from the trough at a number of points, means being provided to return the material to the trough. The rollers 12, 16 are rotated in opposite directions to each other, and to rollers 10, 14. The material passes out of the trough formed by these rollers through the gaps between the rollers 10, 12 and 14, 16, the peripheral speeds of the rollers 10 and 14 being different from that of rollers 12 and 16 whereby the material is kneaded as it emerges. The sheets of material are returned to the trough by aprons 20, 22 provided with tensioning rollers 36 and driven by contact with the material on the rollers 10 and 14, auxiliary chain driving means 46, 47 being provided. The sheeted material is picked up from the aprons by knives 37, 38 and by rollers 39, 41 and 43, 45 which may be driven or not. The material is discharged from the trough at the end of the operation by reversing the direction of rotation ; it then passes between the rolls 12, 16. Arms 54 fitted with knives 56 are swung round their pivots 55 and strip any of the sheeted material carried by the rollers 39, 41. The ends of the trough are formed by plates having finger-like parts extending into the bights between the rolls, the fingers between the rolls 12, 16 being curved towards each other to reduce the length of the opening between the rolls.
Patent GB-322024-A (GB)
Title: Improvements relating to toys
IPC: A63H3/10
Filed: 1928-09-14
Abstract: 322,024. Knight, S. A. Sept. 14, 1928. Folding models; pictorial toys.-A toy figure a, pressed from sheet material, has a part b at the lower end that may be formed to represent the ground upon which the figure stands and is so cut or punched out from the blank that it may be bent on the line at which the cuts terminate to occupy a position transversely to the figure, and to extend outwardly on both sides of the figure to form a base upon which the figure stands erect. The figures are preferably stamped out in relief and may take the form of farmyard animals, soldiers, houses, trees, gates, outbuildings, wells, bridges, hayricks, barns, sheds, &c.
Patent GB-685170-A (GB)
Title: Improvements in or relating to covers or lids for dust bins or other receptacles
IPC: B65F1/16
Filed: 1950-10-31
Abstract: 685,170. Dustbins. TAMINI, M. Oct. 31, 1950 [Oct. 31, 1949]. No. 26524/50. Class 26. [Also in Group XVII]. A dustbin lid of rubber or similar resilient material comprises a ring B of substantially U-shape in cross-section having a groove G which engages the entire free edge of the bin, and a closure C, a portion of the periphery of which is rigidly connected to the ring and the remainder being capable of upward movement, the free portion (in the closed position) resting on the ring. The free portion is preferably the major part of the periphery.
Patent GB-860950-A (GB)
Title: Electric arc welding
Inventor: CRESSWELL ROBERT ARTHUR
IPC: B23K9/14
Filed: 1957-08-22
Abstract: Fluxes of the following compositions in parts by weight: (a) 45 rutile, 5 fluorspar, 15 felspar, 16 high carbon ferro-manganese, 18.5 other alloying materials, e.g., ferro-molybdenum and ferro-chromium or (b) 30 rutile, 10 fluorspar, 8 limestone, 5 felspar, 22 ferro-chromium, 6 nickel, 10 ferro-niobium are used as electrode coatings in arc welding (see Group XXII). Specifications 584,299, 795,672 and 860,959 are referred to.
Patent GB-377014-A (GB)
Title: Improvements relating to thread guides or lappets for spinning and twisting machines
IPC: D01H13/04
Filed: 1931-09-23
Abstract: 377,014. Lappets for spinning and twisting machines. APPLEBY, E. and APPLEBY, Ltd., J., Castle Works, Tower Road, Aston, Birmingham. Sept. 23, 1931, No. 26535. [Class 120 (ii).] In a thread guide or lappet for spinning and twisting machines of the kind in which a wire loop f through which the thread passes is adjustable relatively to the lappet by a spiral cam i, the lower plate e is formed at its underside with a pair of deep depressions g which provide at the upper side of the plate a pair of parallel ridges h, between which the stem of the loop can lie and which serve to support the cam i within the lappet. The lower plate is held in position by turning over its underside the lower edges of the flanges s of the upper plate a, at the rear of which are formed hinge parts b for co-operating with corresponding parts c on the attachment plate d. At the inner end of the lower plate a pair of upward projections j are provided to prevent relative movement between the plates.
Patent GB-297674-A (GB)
Title: Air moistening apparatus for use in connection with incubators
IPC: A01K41/00
Filed: 1928-09-15
Abstract: 297,674. Karthaus, L. J. G. Sept. 24, 1927, [Convention date]. Air, moistening.-The fan 5 of an incubator directs air past heating tubes and moistening devices comprising cloths or wicks 10 carried by frames 9 and dinping into water troughs 11. The water troughs are supplied by a pipe 13 connected to a container 14 fed from a tank 15 through a float valve. The supply of water to the fabric is regulated automatically so that the humidity of the air is kept approximately at 41 per cent. A wet bulb thermometer 18. arranged in the middle compartment and having a wick 20 extending into a bottle 21 filled with water is arranged to complete an electric circuit should it register a temperature of 80' Fahr. or over and so to energize a solenoid 24 actuating a valve 27 opening the supply of water to the troughs. One of the cloths or wicks 10 may be used as the wick of the thermometer 18. In a modification the water valve is controlled directly by a rod actuated by the movements of an ether-filled capsule that is covered by the moistened wick. The Specification as open to inspection under Sect. 91 (3) (a) describes also a method of controlling the humidity in which the area of moistened cloth or wick exposed to the air is varied either by raising or lowering the frames supporting the cloth wicks dipping into the water trough, by rolling up the fabric or by covering the surfaces by a movable flat or cylindrical screen. This subject-matter does not appear in the Specification as accepted.