baber/WOPTO huggingface dataset:
Patent GB-235432-A (GB)
Title: Improvements in drying apparatus
IPC: D06F58/08
Filed: 1924-09-06
Abstract: 235,432. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 6, 1924. Air and gases, controlling circulation of.- Laundry-drying apparatus comprises an insulated chamber heated by steam pipes 12 and having rotary shafts 20 for supporting and conveying through the chambers perforated clothescontainers 34. The containers are placed within and withdrawn from the chamber through openings closed by sliding windows. A continuous circulation of air is maintained through the chamber by a fan which communicates with the chamber through openings 56, 58, and moisture-laden air may escape through an opening in the lower part of the chamber. Specification 235,433 is referred to.
Patent GB-717799-A (GB)
Title: Production of n-vinyl ª-pyrrolidone
Filed: 1952-08-22
Abstract: A process for the production of N-vinyl a -pyrrolidone comprises subjecting N-b -hydroxyethyl a -pyrrolidone to dehydration.  N-b -Hydroxyethyl-a -pyrrolidone is obtained by reacting ethanolamine with g -butyrolactone, with distillation of water from the reaction mixture, suitably at 200 DEG  to 250 DEG  C., the initial product being N-b -hydroxyethyl-g -hydroxybutyramide.  The dehydration, which is preferably carried out in the presence of a dehydrating catalyst, may be carried out in the liquid or vapour phase.  In the liquid phase the N-b -hydroxyethyl a -pyrrolidone may be passed downward through a chamber filled with particles of the catalyst heated to 200 DEG  to 400 DEG  C., preferably 320 DEG  to 350 DEG  C. Alternatively the N-b -hydroxyethyl a -pyrrolidone may be added to a liquid such as mineral oil, diphenyl or diphenyl oxide which contains suspended finely divided catalyst and is maintained at reaction temperature; the water and N-vinyl a -pyrrolidone are preferably distilled off at 150 to 300 mm. and the process may be operated continuously.  Vapour phase dehydration is preferably effected at 250 DEG  to 350 DEG  C. and at pressures below 100 mm.  Basic or neutral catalysts are suitable.  Specified are calcium oxide, aluminium oxide, and a mixture of aluminium oxide, iron oxide and potassium hydroxide. Hourly space velocities of 500 to 4000, preferably 2600, in the vapour phase process and of 150 to 300 in the first-mentioned liquid phase process are suitable.  In examples N-vinyl-a -pyrrolidone is prepared by (1) passing N-b -hydroxyethyl a -pyrrolidone (the product obtained from the reaction of ethanolamine and g -butyolactone at 200 DEG  to 250 DEG  C. with distillation of water) downwards over activated alumina particles heated to 270 DEG  to 290 DEG  C.; (2) passing N-b -hydroxyethyl a -pyrrolidone vapour over activated alumina at 300 DEG  to 340 DEG  C.; (3) gradually adding N-b -hydroxyethyl a -pyrrolidone to activated alumina particles suspended in white mineral oil heated to 320 DEG  to 350 DEG  C., with condensation of the evolved vapours; (4) heating ethanolamine and g -butyrolactone at 200 DEG  to 250 DEG  C. with distillation of water from the mixture, and passing the vaporized residue over activated alumina at 290 DEG  to 335 DEG  C.
Patent GB-1464965-A (GB)
Title: Adhesion using saturated polyester
IPC: C09J5/02
Filed: 1974-05-13
Abstract: 1464965 Laminating process FUJI PHOTO FILM CO Ltd 13 May 1974 [24 May 1973] 21154/74 Heading B5A A process for bonding materials together comprises either: (a) coating the surfaces of the material with an epoxy resin, interposing a saturated polyester containing less than 70 mole per cent of residues derived from ethylene glycol as the glycol component between the coated surfaces; or (b) coating each face of a sheet of polyester as defined in (a) with an epoxy resin, interposing the coated sheet between the materials, and hot pressing the resultant assembly in the absence of any hardening agent for the epoxy resin. The materials to be bonded may be of metal, e.g. aluminium, steel, copper, lead or brass, glass, ceramic material plastics, e.g. polyethylene terephthalate or polyvinylchloride, rubber, thermosetting resin or wood. The epoxy resin may be aromatic or aliphatic, many suitable epoxy resins being specified, and may be applied as a solution in a ketone, the solvent being evaporated prior to assembly of the components to be bonded. The polyester resin, which may be in pellet form when the epoxy resin is applied to the surfaces to be bonded, may be derived from ethylene glycol, a glycol of the formulµ HO-(-CH 2 -)- m OH or where R is hydrogen or methyl, m is 3 to 12 and n is 2 to 10, e.g. methylene glycol octane diol or diethylene, triethylene, polyethylene or polypropylene glycol and a dicarboxylic acid, e.g. terephthalic, isophthalic, orthophthalic, adipic, carboxyphenylacetic or naphthalene-2,6-dicarboxylic acid, a hydroxyacid, e.g. p-#-hydroxyethoxybenzoic acid being optionally included on the reaction mixture.
Patent GB-420764-A (GB)
Title: Improvements in or relating to sealed tins or like containers for tobacco or like goods
IPC: B65D51/20
Filed: 1933-07-27
Abstract: 420,764. Tins, boxes, &c. ROTHMAN'S, Ltd., and WYNER, H., 5, Pall Mall, London. July 27, 1933, No. 21171. [Classes 18 and 66] A tin or box for cigarettes, tobacco, &c., sealed air-tight by a readily frangible thin sheet 5 of lead or other metal soldered to the mouth flange 4, is provided with a hinged cover 6 attached to the container by means of hinge barrel members 10, 11, soldered or other. wise secured to the upper part of the wall with no part thereof passing through the wall.
Patent GB-732885-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/02
Filed: 1953-07-31
Abstract: A coating composition for depositing a coating of a luminescent material on a vitreous surface, such as the envelope of a fluorescent lamp, comprises a luminescent material suspended in an aqueous solution of a methyl cellulose binder and having a flow agent, consisting of a water soluble mono-hydroxy alcohol higher than methyl alcohol, in solution therewith.  The composition can contain approximately 0.8 per cent methyl cellulose (1500 c.p.s. viscosity) by weight.  The flow agent consists of an alcohol from the group of ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec.-butyl, n-amyl and iso-amyl alcohols, and can be butanol amounting to approximately 5 per cent by volume of the solution or ethanol amounting to approximately 30 per cent by volume of the solution.  A wetting agent, preferably in the order of 1 per cent by weight of luminescent material, can be incorporated in the composition, such as sodium lauryl sulphate (known under the trade name Duponol-C), and materials known under the trade names Renex and Nopalcol.  A defoamer, preferably in the amount of 0.1 p  per cent by volume of the composition, can be incorporated, such as tributyl phosphate, and materials known under the trade names Foamex, Nopalcol 1-L, Nopco KF, Diafoam and Polyglycol P-1200. The coating composition can be prepared by dry mixing the luminescent material with a sufficient amount of methyl cellulose to produce the desired viscosity in the final composition, adding water and the flow agent thereto and agitating the resultant mixture.  A specific example is given.  In a second method of preparation methyl cellulose is dissolved in water containing butanol which has been heated to approximately 85 DEG  C. and the resultant mixture is agitated while it is cooled to a temperature of 5 DEG  to 10 DEG  C. to obtain a clear solution.  The defoamer and wetting agent may be added and the luminescent material suspended therein by ball-milling.  In a modification a lacquer is first formed which is subsequently diluted to the desired viscosity.
Patent GB-531432-A (GB)
Title: Article-supporting device for use with shelving
IPC: A47B96/02
Filed: 1939-07-21
Abstract: 531,432. Shelves. BUSSCHAERT, A. L. July 21, 1939, No. 21295. [Class 52 (i)] Shelves having inturned flanges 2... 5 on the underside at the edges are provided with a device comprising a length of wire the ends of which are bent as shown at a ... d, p, r, s, t to fit in the channels formed by the flanges and with intermediate parts f, g, h and i, k, m which extend part of the distance between the flanges and are spaced from the undersurface of the shelf. It is stated that gas masks may be stored, the cylinders resting on the shelves and the face-engaging portions supported by the device arranged below the shelf immediately above.
Patent GB-1030152-A (GB)
Title: Moderator structures for nuclear reactors
Inventor: THORN JAMES DOUGLAS
IPC: G21C5/16
Filed: 1962-06-01
Abstract: 1,030,152. Moderator structures. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 22, 1963 [June 1, 1962], No. 21331/62. Heading G6C. A sub-assembly for building a nuclear reactor graphite moderator structure comprises a twopart brick and a two-part tile, the brick comprising two spaced elongate coaxial tubes having lengthwise grain structure, and the tile also comprising two coaxial parts with a lengthwise grain structure, the outer of the tile parts having parts for interlocking with adjacent outer tile parts. The outer tube 10a may be square but is preferably of hexagonal section and includes spigots 21, 22 at its ends which engage corresponding spigots on the outer tiles 11a; the inner tube 10b is similarly engaged with the two inner tiles 11b. Lateral restraint for the assembly is provided by keys and keyways on the tiles as seen in Fig. 2. The keys may be separate, but are preferably integral. Two sets of spacers 27, 28, also on the tiles, serve to maintain in axial alignment the inner and outer tubes, and a fuel element (not shown) within the inner tube respectively. Thus, all lateral location surfaces are carried by the tiles. The outer tiles may have radial slits extending partially or fully through them (Fig. 3. not shown) in order to relieve hoop stresses therein. The inner tubes and tiles may be replaced during the life of the core, they being the part of the core most liable to radiation damage. Coolant gas circulation.-Coolant gas which has not yet been in contact with fuel elements passes in parallel flows 35, 36 on both sides of the outer tubes and tiles. This flow may be in series or in parallel with the main coolant flow 37 through the fuel rod channel 20. The fuel may be in the form of a cluster of small diameter rods located in a sleeve 38 (shown chain dotted in Fig. 1); in this case, both inner and outer tubes and tiles will be sandwiched between flows of coolant gas which has not passed over the fuel rods.
Patent GB-683332-A (GB)
Title: Improvements in or relating to moving or attracted iron measuring instruments having band suspensions
IPC: G01R5/14
Filed: 1950-08-30
Abstract: 683,332. Current and voltage measuring instruments. SIEMENS & HALSKE AKT.- GES. Aug. 30, 1950 [Oct. 31, 1949], No. 21463/50. Class 37. An instrument for measuring current or voltage comprises a coil 2, Fig. 1, fed with the current or voltage to be measured and acting on an iron armature 3 co-operating with a fixed iron 22, 23, Fig. 2, the armature 3 being in two parts and being mounted on a torsion strip 4, Fig. 2. A mirror 7, Fig. 1, on the strip reflects light via mirrors 15, 16, Fig. 4, to a scale 11 which is appropriately curved to maintain good focusing over its length. The coil 2 may be circular, oval or substantially rectangular and preferably contains chambers 20, 21, Fig. 3, in which vanes carrying the armatures 3 operate to provide damping. The coil 2 may be varied by rotating the suspension to vary the initial spacing between the fixed plate and the armature. Zero adjustment is obtained by varying the orientation of the mirror relatively to the suspending strip.
Patent GB-850041-A (GB)
Title: Improvements in or relating to the moisture-proof protection for windings of electrical machines disposed in slots
Inventor: WEST ALLAN LUKE
IPC: H02K3/44
Filed: 1958-07-04
Abstract: 850,041. Insulation for dynamo-electric machine windings. BRUSH ELECTRICAL ENGINEERING CO. Ltd. May 20, 1959 [July 4, 1958], No. 21503/58. Class 35. Water-tight insulation of a slot winding is produced by lining the slot with two layers of silicone resin glass cloth or like material between which there is a sheet of silicone rubber, placing the conductors in the slot together with a silicone paste, folding the edges of the slotlining layers down at the slot mouth and securing with a slot wedge, and curing by heat. The end-windings are filled with paste and wound half-lap with silicone rubber tape, a protective tape such as fibre glass being wound on top. Connections from one coil to another are protected by silicone rubber sleeving, tape and paste protected by fibre-glass tape. The complete winding is then impregnated with a varnish which is hardened by stoving.
Patent GB-430774-A (GB)
Title: Process for the production of therapeutically active tetrazole derivatives of the terpene series
Filed: 1934-07-23
Abstract: Therapeutically active tetrazoles are produced by treating camphor or thujone or their isomers and homologues with hydrazoic acid in the presence of an acid catalyst, or their oximes or oxime esters with hydrazoic acid or an azide.  Acid catalysts mentioned are mineral acids, phosphorus pentoxide, zinc chloride, aluminium chloride, ferric chloride, antimony pentachloride, tin tetrachloride, phosphorus oxychloride, phosphorus pentachloride and thionyl chloride.  In examples: (1) camphor dissolved in a solvent such as benzene, chloroform, carbon tetrachloride, or trichlorethylene, containing hydrazoic acid is treated with antimony pentachloride. The solvent is removed and any unchanged camphor distilled in steam. The tetrazole is precipitated with hydrochloric acid, taken up in ether, and purified by crystallizing the mercuric-chloride double compound.  (2) Japanese camphor dissolved in benzene is added to a benzene solution of hydrazoic acid and tin tetrachloride in benzene, and the product worked up as in example 1.  (3) Concentrated sulphuric acid is added to a benzene solution of hydrazoic acid and camphor, and worked up as before.  (4) Thujone oxime is dissolved in a mixture of chloroform and pyridine and treated with benzene sulphonic chloride, powdered sodium azide or a solution of hydrazoic acid in chloroform is added, and the temperature slightly raised. The product is liberated with dilute sulphuric acid, taken up in benzene, and recrystallized from ether and petroleum ether.  (5) A benzene solution of thujone is added to a benzene solution of hydrazoic acid, tin tetrachloride, and concentrated sulphuric acid, and the product worked up as before.  Specifications 250,897, 252,460, 257,418, and 280,529, [all in Class 2 (iii)], are referred to.
Patent GB-1452547-A (GB)
Title: Urinary sediment stain
IPC: G01N1/30
Filed: 1974-05-15
Abstract: 1452547 Stain composition  R STERNHEIMER 15 May 1974 [29 Oct 1973] 21557/74 Heading G1B A stain for unfixed, wet urinary sediment and cellular elements of serous effusions comprises, in combination in non-alcoholic solution having a pH in the range from 2 to 5, a copper phthalocyanine dye and a red xanthene dye. The copper phthalocyanine dye may be National Fast Blue, Alcian Blue, Astrablau. The xanthene dye may be Pyronine B, Rhodamine G, Acridine red. Also mentioned are Alcian green and Pyronine Y. The copper phthalocyanine dye stains the nucleus of damaged cells blue, the red xanthene dye stains the cytoplasm red and the mucoproteins are stained blue.
Patent GB-888651-A (GB)
Title: Improvements in or relating to roofing materials
IPC: E04D13/17
Filed: 1960-06-20
Abstract: 888,651. Roofing materials. RUBEROIDWERKE A.G. June 20, 1960 [June 20, 1959], No. 21597/60. Class 93 Roofing material comprises a metal or plastic sheet or a metal-plastic laminated sheet provided with a layer of spaced coarse light heat-insulating elastic grains, e.g. of cork, expanded cork, or foamed plastic, in which the grains project from the surface of the sheet. The grains may be attached by adhesive, e.g. bitumen, or, in the case of a plastic sheet, by attachment to the surface softened by solvent or heat. A plastic sheet may be attached to the upper surface of a metal sheet carrying the grains on its lower surface, or a sheet of roofing felt or a layer of mineral granules may be attached either to the upper surface of a grain-carrying sheet or to the upper surface of the plastic sheet overlying a metal sheet. As shown, the marginal portion a of a sheet 1 carrying spaced grains 2 and an upper sheet of roofing pasteboard 6 may be left free from grains to facilitate overlapping of adjacent sheets.
Patent GB-517527-A (GB)
Title: Improvements in gas meters
IPC: G01F15/00
Filed: 1938-07-21
Abstract: 517,527. Gas meters. WILSON GAS METERS, Ltd., G., and POOLE, D. C. E. July 21, 1938, No. 21632. [Class 27] In dry gas meters in which the operation of the meter is automatically stopped after the meter has passed a predetermined quantity, means is associated with the pointer door or' cover-plate whereby, when this is closed, the stop mechanism is locked against alteration of the setting. A differential gear is introduced between the drive shaft 7 and the pointer shaft 2, and one element of this gear is automatically held stationary when the pointer door is locked. The differential consists of a crown wheel 13, fixed to the shaft 2, a crown wheel 14, unitary with a pinion 15, both rotating freely about the shaft 2, and planet wheels 17, carried by a pinion 18, driven by a worm 6, on the shaft 7. When the door 12 is locked by a detent 16, which is pressed by a spring 22; to a position behind an inclined stop 23, the detent 16 acts as a pawl holding the pinion 15 and wheel 14 stationary and the drives qf the shaft 2, and its associated valve-operating rod 3, is effected through the worm 6, pinion 18, planets 17, and crown 13. On screwing a key on to the end of detent barrel 19 to raise the detent 16 and unlock the door 12, the pinion 15 becomes free to rotate and the pointer 4 can be adjusted to any required position. The incline 23 renders the door selflocking on closure.
Patent GB-1488107-A (GB)
Title: Holder for towels or the like
IPC: A47K10/10
Filed: 1976-05-25
Abstract: 1488107 Towel holders; brackets ROMAN DIETSCHE KG 25 May 1976 [10 June 1975] 21650/76 Headings A4B and A4U A towel holder comprises horizontally spaced arms 7, 7a having integral trunnions 5, 6 mounted pivotally in upper and lower bearing blocks 3, 4 of a wall bracket fastened to a wall by screws 14, 25, the screws 14 passing through aligned holes 12, 13 in the bearing blocks 3, 4 to secure these together. A mask 20 covers the screw 25.
Patent GB-1001613-A (GB)
Title: Collagen casing and method of making it
IPC: A22C13/00
Filed: 1962-06-05
Abstract: 1,001,613. Tubular films (sausage casings). JOHNSON & JOHNSON. June 5, 1962 [June 5, 1961], No. 21676/62. Drawings to Specification. Heading B5B. [Also in Division A2] A sausage casing comprising sugar-cured cohered collagen fibrils is made by extruding a tubular body from a fluid mass of swollen collagen fibrils into a coagulating liquid; hardening the body in the wet state, applying a solution containing a reducing sugar to the body, and heating the body at a temperature and for a time sufficient to heat-cure the body. Heat-curing may be effected at from 70-80‹ C. for a period of 24 hours Preferably, the body is dried prior to heat-curing, suitably at from 35-80‹ C. for from 7-9 hours The solution containing the reducing sugar may also contain a plasticizer, e.g. glycerol. Specified reducing sugars include erythrose, threose, arabonose, ribose, xylose, fucose, mannose, glucose, galactose and fructose, which may be present in concentrations of from 0À005%-0À20% by weight of the solution. Desirably, the hardened tubular body is waterwashed, before immersion in the reducing sugar solution In a preferred method, a fluid mass of swollen collagen fibrils obtained from unlimed animal hide, having a collagen solids content of 3À2%-4% by weight is extruded to form a tubular body, which is immersed in a solution of ammonium sulphate to coagulate the collagen and then in an alum solution to harden it A non-collageneous fibrous material, e g hardwood cellulose, may be slurried with the collagen fibrils and extruded therewith to form a casing comprising a non-collageneous fibrous material encapsulated in a matrix of unlimed hide collagen fibrils cohered to form a translucent hyaloid structure. Sausage casings so made are characterized by a combined swell and deformation of 6%-14%, a wet tensile strength of 0À7-1À5 1b, and a shrink tension of 0À3-1À0 1b. They are suitable for both pork and beef products, and the casings containing beef products may be smoked. Casings may be filled with wiener emulsion, the casing being shrunk on and bonded to the emulsion and edible therewith.
Patent GB-170640-A (GB)
Title: Improvements in devices for driving or supporting motor or other vehicles
IPC: B62D57/00
Filed: 1920-07-20
Abstract: 170,640. Zboril, V. July 20, 1920. Non-circular substitutes for wheels. - Propelling and supporting legs having a heel and toe action as described in Specification, 132,812, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], are, actuated by upper and lower oppositely rotating cranks. The leg or striding member 6 is pivoted directly to the pin of the lower crank 3 and is formed with an upper extension having a slot which is engaged by a roller on the pin of the upper crank 56. The upper crank shaft 55 is so geared to the lower one that it rotates oppositely thereto and at double the speed thereof. Feet 66 pivoted to the end of each leg are acted upon by springs which tend always to return them to a certain position relatively to the legs. In a modification, the slot is dispensed with and a similar effect obtained by making the striding member in two parts, the upper part being connected directly to the upper crank pin and adapted to slide in or on the lower member.
Patent GB-971727-A (GB)
Title: Improvements in or relating to the production of formaldehyde/carbamate condensationproducts and their use in the finishing of cellulosic textile fabrics
IPC: C08G12/20
Filed: 1962-06-05
Abstract: Water soluble condensation products are prepared by reacting an alkyl monocarbonate of the formula R11O.OC.NH2 in which R11 is an alkyl group having from 1 to 4 carbon atoms with formaldehyde in aqueous alkaline solution and in a mole ratio of formaldehyde to alkyl monocarbamate of at least 2:1.  Preferred carbamates are those of the above formula wherein R11 is an ethyl or butyl radical. Examples are given.  The products are used in the finishing of cellulosic textile fabrics (see Division D1).ALSO:Cellulosic textile fabrics are finished by impregnating the fabric in the presence of an acid catalyst with an aqueous solution of a water-soluble condensation product derived from an alkyl monocarbamate and formaldehyde (see Division C2), followed by curing at a temperature above 130 DEG C. The treatment renders the fabrics wrinkle-and crease-resistant.  The fabrics are defined as textile fabrics of all kinds, including woven and knitted fabrics, made wholly or partly of natural cellulose, regenerated cellulose or cellulose derivatives.  The impregnated fabric is preferably dried prior to curing.  Specified acid catalysts are inorganic or amine salts of strong mineral acids, preferably the hydrates of zinc nitrate or magnesium chloride.  The treating bath may contain other auxiliary agents such as wetting and softening agents.  The solution may be applied to the fabric by conventional procedures, such as soaking the textile in the solution and padding or centrifuging, followed by drying and curing and then washing off unreacted materials.  Examples describe the treatment of cotton print cloth.  A comparative example describes the treatment of cotton print cloth with an aqueous solution of dimethylol ethyleneurea and zinc nitrate.