baber/WOPTO huggingface dataset:
Patent GB-189254-A (GB)
Title: Improvements in trap nests
IPC: A01K31/16
Filed: 1921-09-03
Abstract: 189,254. Chant, G. N. Sept. 3, 1921. Trap nests.-A trap nest comprises a nest compartment 1, an outlet compartment 2 leading to a pen and vertically sliding doors 5, 6 connected together by a cable 7 passing over rollers 8, 9. When the bird enters the compartment 1, the nest 12 is depressed and acts upon a projection 31 raising arms 29 to close the entrance temporarily. The egg laid rolls down a shoot 18 of canvas and releases a catch 17, allowing the heavier door 5 to close and the door 6 to open. The bird passes through the compartment 2, depressing the floor 20 and actuating levers 23 connected to the door 6 so that the nest is re-set. A non-return door 10 closes the exit. Specification 133,985, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-773757-A (GB)
Title: Method of treating zinciferous surfaces
Inventor: VAN LEON
IPC: C23C22/37
Filed: 1955-08-15
Abstract: A zinciferous surface is passivated by treating it with an aqueous acidulated solution containing 20-90 g/litre hexavalent chromium (calculated as CrO3), not less than 0.25 gram chloride ((calculated as NaCl) for each gram of hexavalent chromium (calculated as CrO3) and not less than 0.4 g/litre complex fluoride (calculated as fluorine), said solution having a pH of 1.9-2.8 and a temperature of 160 DEG -195 DEG F. and the treatment time being 2-10 seconds. Preferably, the solution contains chloride in an amount approximately equal to the hexavalent chromium, and 0.9-1.8 g/litre complex fluoride, and its pH may be adjusted by additions of sodium hydroxide or hydrochloric acid. The hexavalent chromium may be introduced as chromic acid or as a salt of chromic acid such as potassium chromate, sodium dichromate or ammonium chromate or dichromate, the chloride may be introduced as hydrochloric acid, sodium chloride or ammonium chloride, and as a source of complex fluoride may be used fluosilicic acid, fluoboric acid, fluozitconic acid fluostannic acid, fluotitannic acid or a soluble salt thereof.  The process is stated to be particularly useful in the passivation of galvanized surfaces containing, for example, 4 per cent or more of aluminium. A final siccative finish of paint, lacquer, or japan may be applied to the passivated surface.
Patent GB-1142769-A (GB)
Title: Benzhydrylcarbamates and process for preparing the same
Inventor: RICHTER SIDNEY BERNARD
IPC: C07C271/06
Filed: 1967-05-19
Abstract: 1,142,769. N - Methyl - benzhydrylcarbamates. VELSICOL CHEMICAL CORP. 19 May, 1967, No. 23504/67. Addition to 1,110,617. Heading C2C. [Also in Division A5] The invention comprises N-methyl-2-dimethylamino - 5 - chlorobenzhydrylcarbamates substituted by a methyl group in the 21- or 41- position or by a chlorine atom in the 31- or 41- position. The compounds are prepared by reacting the appropriate benzhydrol with methylisocyanate.
Patent GB-1133867-A (GB)
Title: Production of improved vinyl acetate copolymer emulsions
IPC: C08F283/06
Filed: 1966-05-26
Abstract: 1,133,867. Preparation of vinyl acetate copolymer emulsions. CELANESE CORP. 26 May, 1966 [4 June, 1965], No. 23553/66. Heading C3P. Vinyl acetate copolymer emulsions - are obtained by initially polymerizing vinyl acetate with minor amounts of one or more ethylenically unsaturated comonomers in an aqueous medium containing a surfactant comprising a major proportion of a polyether having at least four ether linkages, starch or a water-soluble cellulose derivative as protective colloid and a water-soluble free-radical polymerization catalyst, and continuing the polymerization by introducing additional monomer and catalyst until an emulsion containing more than 55% of polymer is formed, an additional quantity of surfactant being added before the last addition of monomer, and a further quantity of catalyst alone is finally added and the catalyst-containing emulsion is maintained at an elevated temperature until a reduction in viscosity of the emulsion is achieved. The emulsions may be incorporated in paint compositions. In the examples vinyl acetate, ethyl acrylate and di-(2- ethylhexyl)-maleate or dioctyl maleate are copolymerized using a surfactant mixture comprising nonylphenylpolyethylene glycol ether and nonylphenoxypoly (ethyleneoxy) ethanol, hydroxyethyl cellulose and a defoamer blend, the initiators being potassium persulphate, hydrogen peroxide, sodium chlorate, sodium persulphate and ammonium persulphate. In Example VI a composition is prepared comprising a vinyl acetate-ethyl acrylate-dioctyl maleate copolymer emulsion, methyl cellulose, 2,2,4 - trimethylpentanediol - monoisobutyrate, potassium tripolyphosphate, TiO 2 , CaCO 3 , water, propylene glycol, and phenyl mercuric acetate.
Patent GB-587428-A (GB)
Title: Improvements in and relating to pincers, shears, wire and bolt cutters and similar gripping or cutting tools, and like appliances
IPC: B26B17/02
Filed: 1944-11-27
Abstract: 587,428. Wire cutters &c. MUTER, A. J. Nov. 27, 1944, No. 23604. [Class 61 (ii)] A cutting or gripping tool comprises two jaw members 8 pivoted together at 9 and which may have renewable cutter blades 10, two bell crank gripping levers 1 pivoted together at 2 and two intermediate transmission bell crank members 6 pivoted together at 7 and to the bell crank levers at 5 and to the jaw members at 11. Specification 572,558 is referred to.
Patent GB-839171-A (GB)
Title: Divalent metal catalysts and their use in the polymerisation of epoxides
IPC: C07C45/33
Filed: 1958-07-23
Abstract: The invention comprises compounds of the general formula H2N-M-OR where M is a divalent metal from Group II of the Periodic Table, of atomic number 4-57, and R is an organic radical.  Specified values for M are calcium, strontium, barium, magnesium, and zinc, and values specified for R are alkyl, cycloalkyl, aryl, alkaryl, or aralkyl, R may contain one or more oleginic double bonds, a sulphone group, or an ether group, or any functional organic group or atom inert to oxirane oxygen. The compounds may be prepared by reacting the divalent metal with ammonia, and reacting the metal hexammoniate or diammoniate so formed with an epoxide, alcohol, phenol or aldehyde. Examples are given.ALSO:Olefine oxides are polymerized in the presence of a catalyst of general formula H2N-M-OR where M is calcium, strontium, barium, magnesium or zinc, and R is an organic radical.  The catalyst may also comprise a mixture of the above amide-alcoholate with the metal amide.  Specified values for T are alkyl, cycloalkyl, amyl, alkanyl or aralkyl.  R may contain one or more olefinic double bonds, a sulphone group, or an ether group, or any functional organic group or atom inert to oxirane oxygen.  The polymerization process may be carried out at - 30 DEG  to 150 DEG C., in the presence of an inert diluent.  The catalysts may be used for both the copolymerization and homopolymerization of lower olefine oxides.  Specified oxides are ethylene and propylene oxides and 1,2- and 2,3-epoxybutanes.  Granular polymers may be produced by polymerizing at temperatures below 70 DEG  C. while agitating in the presence of a diluent.  Examples are given.
Patent GB-979646-A (GB)
Title: Improvements in or relating to the comparison of magnitudes of numbers
Inventor: PENNEY DONALD SIDNEY
IPC: G06F7/02
Filed: 1961-07-03
Abstract: 979, 646. Comparing digital data. MICROCELL Ltd. June 29, 1962 [July 3, 1961], No. 23984/61. Heading G4M. In a circuit for comparing two binary numbers registered in registers 22, 23, the digits of the second number are inverted at 24, and the inverted digits applied, together with the true digits of the first number, to majority gate circuits 19, 20, 21 &c., the circuit 19 being for the least significant digits. The gate circuits 19, 20, 21 &c., each have three inputs and one output, the output of each being connected as one of the inputs to the next gate circuit, and are such that each produces an output only when signals are applied to at least two of its inputs. If there is an output from the final gate of the series then the number in the register 22 is greater than that in the register 23. If there is no such output the converse inequality holds, or else the numbers are equal. The application of a signal to the third input 25 of the first gate circuit 19 will distinguish these two cases by producing an output from the final gate only in the case of equality. The gate circuits 19, 20 &c. comprise transistors (Fig. 1, not shown).
Patent GB-1134311-A (GB)
Title: Improvements in baffle plate separators for separating particles from gases
IPC: B01D45/08
Filed: 1967-05-23
Abstract: 1,134,311. Air conditioning. SOC. AMELIORAIR. 23 May, 1967 [16 Dec., 1966], No. 24009/67. Heading F4V. [Also in Division B1] An air cleaner comprises an array of parallel, corrugated baffles 2, defining tortuous passages therebetween through which air flows horizontally, each baffle being hingedly suspended by its upper edge so that baffles may be pushed aside, as shown, for cleaning from upstream and/or downstream sides. During normal use (Fig. 1, not shown), the lower ends of baffles are spaced apart by one or two combs (5) (Figs. 5, 6, not shown), which are run down the upstream and/or downstream edges of baffles and engaged in fittings at the bottom. The cleaner may be used downstream of a blower and humidifier (Fig. 7, not shown) and removes dust and any water droplets, introduced by nozzle (13), which are not vaporized. The Fig. 7 arrangement is used on the intake side of an airconditioning system.
Patent GB-778906-A (GB)
Title: Improvements in electroluminescent lamps
IPC: H05B33/14
Filed: 1953-08-31
Abstract: 778,906. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 31, 1953 [Aug. 30, 1952], No. 24077/53. Drawings to Specification. Class 39(1). Materials having an energy gap between their valence and conduction bands of more than 3À5 electron volts comprise zinc sulphide and zinc silicate each activated by manganese (3-40 per cent). The materials are embedded in dielectric or used directly as a compressed layer in electroluminescent lamp constructions. Specifications 731,365, 737,596 and 778,905 are referred to.
Patent GB-647061-A (GB)
Title: Improved method of and apparatus for the manufacture of chocolate
IPC: B02C4/04
Filed: 1947-09-01
Abstract: 647,061. Mixing appliances. AASTED, K. C. S. Sept. 1, 1947, No. 24129. Convention date, March 21, 1946. [Class 86] [Also in Group VI] Consists in a method for manufacturing chocolate in which comminuted cocoa beans and sugar are mechanically mixed together and thereafter are subjected to a pressure increasing to the order of magnitude of 200kg/cm<SP>2</SP>, such that the cocoa butter leaves the cells of the comminuted cocoa beans but remains in the mixture whereby the mass is transferred into a plastic condition. As described, the comminuted cocoa beans and sugar are mixed in a chamber 1 by means of rotating blades 4 until the charge assumes a granulated character, a gate 5 then being opened to deposit the charge into the pressure vessel 8. As shown, the pressure vessel comprises a pug-mill the worm of which has a pitch which progressively decreases towards the ejection end whereat the charge, in a pastelike condition, is forced through nozzles 10 in an end plate 9 on to a roller mill 15. Alternatively the pressure vessel may comprise a piston and cylinder.
Patent GB-532743-A (GB)
Title: Improvements relating to electric lamp bulb enclosures
IPC: F21V7/04
Filed: 1939-08-22
Abstract: 532,743. Electric lamp bulb enclosures. RILEY, W. G. Aug. 22, 1939, No. 24136. [Class 75 (ii)] An electric lamp bulb enclosure is in the form of a hollow glass body formed in one piece comprising a concave reflecting portion of corrugated cross section and having a silver or other metallic reflecting surface b on its outside, an annular clear portion c of corrugated cross section, a bowl-shaped diffuser portion d and a cylindrical or like clear portion e having a lip f.
Patent GB-966498-A (GB)
Title: Poly-ª‡-olefin fibres and filaments
Inventor: BENSON RICHARD WILLIAM HAROLD
IPC: D01F6/04
Filed: 1962-06-25
Abstract: 966,498. Stereoregular poly-α-olefine filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 7, 1963 [June 25, 1962], No. 24284/62. Heading B5B. In a process for making resilient fibres and filaments of stereoregular poly-α-olefines by melt extrusion, winding and heat-setting, the extruded and wound filaments are heat set at a temperature above 110‹ C., so that the birefringence of the extruded, heat-set filaments or fibres is greater than 10 x 10<SP>-3</SP>. Heat setting may be carried out with the filaments in relaxed state or held at constant length. The filaments may be crimped before heat-setting. Isotactic polypropylene filaments made in accordance with the invention have a recovery of at least 85% after 2% extension for 2 minutes. Recovery is defined as where L 1  is original length and L 2  is the length immediately after release of tension. In examples, melt extruded isotactic polypropylene filaments are wound up at 2500- 3000 ft/minute, and heat set at 140‹ C. for 1 hour while held at constant length.
Patent GB-180263-A (GB)
Title: Improvements in wheels for tractors
IPC: B60B1/00
Filed: 1921-09-13
Abstract: 180,263. Manwaring, H. T. W. Sept. 13,1921. Compression - spoke wheels comprise two sets of spokes, those, d, on the outer side of the wheels being arranged in a vertical plane and riveted to the flange b of the hub a and the flange e of the rim f, and those, i, on the inner side, being inclined from the hub towards the vehicle and bolted to the hub flange c and to a ring h which is bolted to the rim flange g and set at the inclination of the spokes.
Patent GB-199641-A (GB)
Title: Improvements in paint and like mixing and kneading machines
IPC: B01F9/10
Filed: 1922-09-08
Abstract: 199,641. Gundlach, P. Sept. 8, 1923. Rotary batch - mixers. - In paint-mixing machines comprising a container f rotating about a scraper h and vertically reciprocating stirrers e, the stirrer-blades are arranged with their ends close to the end of the scraper which extends in close contact with the container from the centre of the container to the filling-level. The scraper h is carried by an arm i which is detachable and is adjustably secured in a socket l on the frame a by a clamp k.
Patent GB-157515-A (GB)
Title: Fish products and the production thereof
IPC: A23K1/10
Filed: 1919-10-06
Abstract: 157,515. Jagger, P. B. Oct. 6, 1919. Fish, treating.-Human food and food for animals are produced from portions of soft-scaled and soft-skinned fish, such as cod and ling, usually rejected, viz. the heads, skins, and backbones. The heads are split open and eyes, jaw, teeth, and, if desired, the gills and mouth removed. The split heads may be used as a " kind of fish steak," or may, like the skins and backbones, be dried and ground into meal for human food. The portions removed from the heads are dried and ground to form food for animals. The drying is preferably performed by means of wood smoke, into which antiseptic substances such as creosote or aromatic flavour such as nutmeg may be introduced. The fish may be freed from oil by solvents, in known manner, before treatment. Fig. 1 shows a machine for treating the heads. These are placed on trays 8, which are conveyed by travelling bands 1 to cutters 3 which split the heads open, cutters 2 which remove the jaws and teeth and punches which remove the eyes. The cutters may be mounted on a block manually operated by a screw, &c. The punches are also manually operated, and the distance between them may be adjustable to suit the size of the head operated on, or several pairs of punches may be provided to suit different heads. The eyes, &c. pass to a shoot 5, while the remainder is carried on to a shoot 6. The shafts driving the band I may carry toothed wheel; 10 engaging with pins 9 on the trays.
Patent GB-246101-A (GB)
IPC: B21B39/00
Filed: 1925-10-01
Abstract: 246,101. Schulte, K. Jan. 19, 1925, [Convention date]. Addition to 244,421. Roller-way conveyers.-The rollers of a live roller-bed forming the rotors of electric motors, as described in the parent Specification, are formed with an external shell 1 to come in contact with the hot billet being transported and an internal shell 2 to produce the turning moment. The shells are separated by a heat and electricity-insulating layer 3. To prevent deformation of the inner shell by falling billets an air space is arranged between the two shells. The inner shell is preferably provided with longitudinal slots like a squirrel case armature, or the outer shell may carry internally a tubular short circuited armature with sheet metal rings and metal bars or conductors. The passing of the billet may automatically switch in and out the individual motor or group of motors concerned.
Patent GB-1488642-A (GB)
Title: Classifying apparatus for classifying particulate materia
IPC: B07B4/02
Filed: 1976-06-14
Abstract: 1488642 Air classifier N YOSHIMORI 14 June 1976 [13 June 1975] 24581/76 Headings B2H and B2P An apparatus for classifying particulate material comprises a cylindrical housing 1, a discharge opening at the top of the housing, an inlet port 2 for admitting fluid into the bottom of the housing so as to create in the latter an upward whirling flow of the fluid towards the discharge opening at the top of the housing, means 19, 10 arranged to admit particulate material to be classified into the region of the upward whirling flow, rotatable vanes 5 mounted near the top of the housing for separating coarse particles from fine particles and to allow discharge of the fine particles through the discharge opening, a rotatable disc 8 mounted above the inlet port 2 and including a plurality of radial nozzles 6 for projecting jet streams of the fluid against the inner wall of the housing, a plurality of guide plates 25, 26 near the inlet port for smoothly guiding coarse particles falling down along the inner surface of the housing without them being disturbed by the whirling flow of the fluid, and a port 4 at the bottom of the housing for discharging coarse particles. A number of inlet ports 2 are arranged to direct fluid tangentially to the inner wall of the housing to create whirling of the fluid. The particulate material to be classified is fed down a chute 19 on to a perforated radial dispersion plate 10 carried by rods 7 on top of the disc 8 which is driven by an electric motor 17 through a shaft 18 extending from a gear box 9. The fluid ejected by the nozzles 6 is the same as that admitted through the ports 2 and is supplied to the nozzles by a pump 20 via a conduit 21 and a vertical cylinder 22. The vanes 5 are driven by an electric motor 14 through a gear box 13 and define restricted fluid passageways with annular inclined rings 15 secured to the inner wall of the housing.
Patent GB-1330809-A (GB)
Title: Gas turbine engine
IPC: F02C7/105
Filed: 1972-05-25
Abstract: 1330809 Thermal regenerators FORD MOTOR CO Ltd 25 May 1972 [2 Aug 1971] 24587/72 Heading F4K A rotary regenerative heat exchanger incorporating a disc-type matrix 24 rotated within a housing 10 by means of an annular ring gear 26 and torque transmitting means 35, includes a peripheral and crossarm seal arrangement consisting of two C-shaped peripheral seal assemblies 40 and 42 and a crossarm seal assembly 44, each comprising a rubbing shoe 46, 48 and 50 to which a foil 52, 54 and 56 is attached. Each end of the crossarm seal assembly 44 has an end foil 72 attached thereto, the radial inner edge of each foil 72 being welded to the shoe 50 with the radially outer edge thereof projecting outwards so that the lateral edges 72a, 72b are adjacent to and in substantially the same plane as the ends 52a and 56b of the peripheral foils 52 and 56. A secondary foil 76 is positioned radially outwards of each respective end foil 72 and the ends of the respective peripheral foils. Each secondary foil 76 has a flat base portion 80 provided with a concave edge 84 from which an inclined reversely projecting portion 82 extends, the base portion 80 being welded to the ends of the peripheral shoes. A retainer strap 86 attached to the end portions of the peripheral shoes maintains the shoes in proper position. Small tabs 90, 92 can be included on the lateral ends of the projecting portion 82 of the secondary foil to bear against the ends of the peripheral foils.
Patent GB-210737-A (GB)
Title: Improvements in or relating to telephone apparatus
IPC: H04R11/00
Filed: 1923-10-03
Abstract: 210,737. Radiotive Corporation, (Assignees of Schmidt, L.). Jan. 31, 1923, [Convention date]. Magnetic instruments; diaphragms, materials for. The tubular armature 18 of a telephone instrument or transmitter extends through the bore of a coil 14, and a vibratory support therefcr is arranged coaxially with the bore of the coil, is fixed at one end to the armature and at the other end to a fixed support, and its fulcrum is located exactly in the line of its axis and at a point midway between its ends. The permanent magnet 5, Fig. 2, may be of horse-shoe form with pole pieces. which are formed with flanges 9, 10. Each flange is provided with angularly disposed shoes 11, 12, which embrace a cylindrical spool 13 on which the coil 14 is wound. The support for the tubular armature 18 is a rod 17, preferably of phosphor bronze, which has a tight frictional grip in a reduced end of the bore of the armature and is fixed to a support 26 at the other end. This rod 17 is reduced in diameter at 25 so that this portion is on the axis of the armature and midway between its ends and acts as a fulcrum about which the armature and its supporting roct vibrate. The supporting rod 17 is connected to the diaphragm 30, which is preferably of celluloid, by a rod 28. Another form of supporting rod is shown in Fig. 6. Specification 208,330 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) also describes a rod of uniform cross section throughout as the support for the armature. This subject-matter does not appear in the Specification as accepted.
Patent GB-259895-A (GB)
Title: Process relating to the fermentation treatment of fruits, vegetables and residues therefrom
IPC: C12G3/02
Filed: 1925-04-08
Abstract: 259,895. Matzka, W. April 8, 1025. Ferments suitable for the fermentation of aqueous extracts of fruit or vegetable materials without the destruction of the natural aroma of these materials are propagated in portions of the aqueous extracts themselves with the addition of about 12 per cent by volume of alcohol, this proportion of alcohol being subsequently maintained by dilution of the medium. The proportions of sugar and of acid are also maintained constant in the medium during the fermentation by the regulated addition of sugar characteristic of the raw material and of weak acids or of alkalies such as lime. The propagated ferment is filtered off and shaken with an aqueous solution containing about 12 per cent alcohol, 1 per cent tartaric acid and 3 per cent glycerine : it is then again filtered and washed first with a 2 per cent aqueous solution of glycerine and then with pure water, and may subsequently be dried in vacuo at low temperature. Lemons, oranges, grape fruit, citrus, pineapple or waste portions of these fruits are mentioned as suitable raw material. Specification 259,625 is referred to.