baber/WOPTO huggingface dataset:
Patent GB-1163819-A (GB)
Title: Power-Driven Hand Tools
IPC: B27B9/00
Filed: 1967-07-11
Abstract: 1,163,819. Sawing. ROCKWELL MFG. CO. 11 July, 1967 [13 July, 1966], No. 31814/67. Heading B5L. [Also in Division H2] A portable power-driven circular saw comprises an electric motor mounted in a dielectric casing 11 and having its current carrying parts isolated from the shaft 29 by a dielectric sleeve 15, a circular saw 71 driven from the shaft via gears 41, 41a and an impact resistant housing 1 surrounding the motor and forming a hollow handle 91 in which a trigger-operated switch is mounted. The housing 1 is made in halves 7, 5 from a dielectric polymer material the halves being secured together by screws 95 in order to clamp the motor casing 11 within the housing; the casing is made from an asbestos filled phenolic material. An end cap 9 is secured to half 7 and is removable in order to gain access to the motor brushes (21, Fig. 7). The shaft 29 is formed with a portion 41 arranged to engage a gear-wheel 41a rigidly mounted on an arbor 63 which is rotatably mounted in a fixed guard portion 3 secured to the housing half 5. The saw blade is secured to the arbor by a slip clutch arrangement comprising two washers 67, 69 clamped by a screw 73. A movable guard portion (57, Fig. 10) is pivoted on a bush 59 mounted in the portion 3 and is normally urged to a closed position by a spring (62). A cooling fan 37 for the motor draws air through an opening 27a and discharges through a slot formed in a cover 32 adjacent the saw blade.
Patent GB-630569-A (GB)
Title: Improvements in syringes or spreaders for pulverulent and/or liquid substances
IPC: B05B11/06
Filed: 1946-10-26
Abstract: 630,569. Powder distributers. FLATABO, R. Oct. 26, 1946, No. 31846. Convention date, April 11. [Class 18] [Also in Group XXIX] A syringe or spreader for powders or liquids is characterized in that a pump 1 or pressure gas container or a combination of both is provided with a lid shaped plate member 6 for enabling operative association with either a powder container or a liquid container having an ejector tube or nozzle. As shown in Fig. 1 the pump 1 is closed by the plate member 6 of greater diameter than the pump cylinder and having a central outlet hole 5 in front of which is a non-return valve housed in a member 7. The pump may be fixed to a powder container 10 through which extends a tube 11, the wall of which is provided with perforations 12. The plate member 6 acts as a lid for the container 10 which communicates with a tapered outlet 14, having an adjustable nozzle 15, 16. The member 7 extends into the tube 11 and forms a tight junction therebetween. When used for liquid spraying the pump is attached to a liquid container 18, having an ejector tube 19, by inserting the outlet member 7 into a conical sleeve 20 secured to the cover of the container by a fixture 21. The pump is locked to the container by means of a bayonet joint, the edge of the sleeve 20 having lugs 22 engaging lugs 23 on the plate member 6. The sprayer may be provided with a pressure container.
Patent GB-395687-A (GB)
Title: Manufacture of a new polymerisation product and of moulded bodies therefrom
IPC: C08F20/14
Filed: 1931-11-17
Abstract: 395,687. Polymerization products; moulded bodies. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London, and HILL, R., Hexagon House, Blackley, Manchester. Nov. 17, 1931, No. 31901. [Class 2 (iii).] Moulded articles are manufactured by thermoplastic moulding of the polymerization products of methyl methacrylate, which may be obtained by polymerizing methyl methacrylate by known processes, preferably in the presence of a known polymerization catalyst such as oxygen, an organic peroxide, an ozonide, or an agent giving off oxygen. The polymerization may be effected in the presence of a solvent or diluent, and is preferably performed at 60- 100 C., the temperature being controlled by cooling if necessary. The polymerization products are if necessary pulverized, placed in a mould, preferably already hot, which is then closed and the powder heated and pressed, e.g. at 80-200 C. and pressures of À1 ton per sq. in. and upwards. The moulding may also be effected by extrusion. Plasticizers, e.g. camphor or tricresyl phosphate, filling materials, e.g. metallic powders or crushed mica, or colouring materials, soluble or insoluble, may be added to the polymer prior to moulding, e.g. by milling on heated rolls, or to the methyl methacrylate prior to polymerization. By suitably choosing soluble dyestuffs and by stratifying or otherwise filling the mould variegated effects may be obtained. The moulded bodies are suitable for the manufacture of unsplinterable glass. Moulded sheets may be used by themselves when a transparent medium of good mechanical properties is needed. Examples describe the moulding of polymerization products obtained by the following methods: (1) methyl methacrylate is heated to 100 C. in the presence of benzoyl peroxide ; (2) methyl methacrylate is heated to 60 C. in the presence of acetic anhydride and sodium perborate and the product is pulverized and moulded ; (3) methyl methacrylate mixed with titanium white and china clay is heated to 100 C. in the presence of benzoyl peroxide ; the moulded products are white opaque bodies ; (4) methyl methacrylate mixed with the disazo dyestuff obtained by coupling tetrazotized diamino - di - p-xylylphenylmethane with #- naphthol is similarly polymerized ; the product yields transparent orange red moulded bodies. Specifications 15271/14, [Class 2 (iii), Dyes &c.], 355,712, and 358,534 are referred to. The Provisional Specification describes also the use of dibutyl phthalate as a plasticizing agent, and refers also to the polymerization of methyl methacrylate by exposure to light. Methyl methacrylate may be obtained by treating methyl alpha-hydroxyisobutyrate with a dehydrating agent, e.g. phosphorus pentoxide.
Patent GB-795603-A (GB)
Title: Improvements in hammering devices for discharge electrodes in electrofilters
IPC: B03C3/76
Filed: 1956-10-19
Abstract: 795,603. Electrostatic precipitation. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Oct. 19, 1956 [Oct. 24, 1955], No. 31916/56. Class 39(1). In an electrostatic precipitator with a hammer or hammers 1a for the discharge electrodes carried by a rotating axle 1 which is driven by a mechanism 3, the axle includes an insulator shaft 4 housed within a chamber 5 and kept clean by a conveyer in the form of a scraper, e.g., a screw worm 6, which is driven by the mechanism 3. The dust accumulating in the chamber 5 is transported to the outlet opening 7. A heater 8, e.g., an electric heater, is also provided.
Patent GB-1530344-A (GB)
Title: Anchorage appliance
IPC: F16B13/08
Filed: 1976-08-02
Abstract: 1530344 Screw sockets RESILIENT GRIP Ltd 28 July 1977 [2 Aug 1976] 32043/76 Heading F2H In an anchor bolt assembly comprising a nut 4 threaded on a headed bolt 1, a metal tube 6 permanently secured to the nut and surrounding the bolt shank, an elastomeric sleeve 8 on the tube, and a metal collar 7 slidable on the tube 6 so that the sleeve 8 is between the collar 7 and the nut 4, the nut, collar, and sleeve when unstressed all having the same outside diameter, the elastomeric sleeve 8 has at least one integral annular flange 10 having an overall diameter between 7% and 15% greater than the rest of the unstressed collar. The flange prevents the nut, sleeve, collar assembly from falling too far into a bore C which has been drilled too deeply.
Patent GB-385080-A (GB)
Title: Improvements in means for supplying auxiliary charges to internal combustion engines
IPC: F02M21/00
Filed: 1931-11-19
Abstract: 385,080. Extra-air admission valves. JERVIS, F., 8, West Avenue, Garden Village, Burnage, Manchester. Nov. 19, 1931, No. 32057. [Class 7 (ii).] A suction-actuated piston valve 12 is housed in a chamber 1 in the cylinder admission pipe and controls two sets of ports 20, 13 which are open to the atmosphere and to a hot air supply respectively. The suction acts on an enlarged head or diaphragm 17 carried by the piston valve 12, and the cold and hot air mix in the passage 18 and enter the admission pipe through an orifice 23. A corrugated baffle 27 rotates the incoming combustible mixture as it traverses the casing 2. In a modified construction, Fig. 3, the head 55 of the piston 42 restricts the mixture inlet during slow running. The cold-air inlet port 43 is regulated by a needle valve 45, and the air enters the valve at the same level as the hot air supply through the passage 39. The valve carries a spreader 54 and a grid 57 drives the combustible mixture into streams before it meets the air supplies. The hot air supply may be heated in a pipe coiled about the exhaust pipe, or be drawn from above the heated radiator water.
Patent GB-1194026-A (GB)
Title: Improvements in or relating to tumbler locks
IPC: E05B47/00
Filed: 1967-07-12
Abstract: 1,194,026. Magnetically operated locks. FUJI MFG. CO. Ltd. and K. WAKE. 12 July, 1967 [26 Aug., 1966; 10 Jan., 1967], No. 32062/67. Heading E2A. A lock has a number of permanent-magnet members, each housed in a protective shell, which are moved on the insertion of a key carrying appropriately orientated corresponding permanent-magnet members so as to unlock the lock. In a cylinder lock, Fig. 12, permanentmagnet pin tumblers 105 are normally repelled by permanent magnets 114 rigidly mounted in the cylinder 101 so as to engage recesses 115 in the barrel 102 and prevent its rotation. However, on insertion of a key 110 having correspondingly arranged permanent magnets 106 with their poles orientated in the correct manner, the magnetic tumblers 105 are raised, against the repulsive forces due to the magnets 114, so as to free the barrel for rotation. The magnetic tumblers are preferably of sintered alloy housed in a shell of metal or synthetic resin. The lock may have two diametrically opposed rows of tumblers. Fig. 19 (not shown) and may be so designed that the tumblers are attracted by the key magnets to free the barrel, Fig. 22 (not shown). The magnets 114 may be replaced by springs or the tumblers may be biased by gravity alone into their locking positions. Magnetic tumblers may be used in combination with conventional pin or sliding-plate tumblers, Figs. 6 and 7 (not shown), or with a lever mechanism, Fig. 9 (not shown). In the latter case, the magnetic tumblers (5) are arranged for movement parallel to the axis of the key (10) which has magnets (6) incorporated in its head. The latter repel the tumblers (5) so as to permit rotation of a barrel (2) with the key so that the bit (8') of the latter can operate the levers. In another embodiment, Fig. 30, the barrel of a cylinder lock receives a cylindrical key having magnets spaced along it and extending in different radial directions which cooperate with correspondingly arranged magnetic tumblers 105. A slot in the barrel admits a projection on the key only when the key is inserted in the correct angular orientation. In a further embodiment, Fig. 25, a flat key having a number of magnets arranged transversely to its plane distributed over its surface is inserted into a recess 122 in an auxiliary member 116 normally locked against movement in a barrel 102 by magnetic tumblers 105. The latter are thus moved to permit inward movement of the slide upon which a bevelled end of the latter actuates a divided pin tumbler 117, 118 against the action of an arcuate spring 119 so that the barrel 102 together with the slide 116 can be rotated.
Patent GB-1399918-A (GB)
Title: Epitaxial crystal deposition
IPC: C30B19/06
Filed: 1972-07-10
Abstract: 1399918 Epitaxial growth on a substrate PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 July 1972 [13 July 1971] 32132/72 Heading B1S An epitaxially layer is deposited on a crystalline substrate from a material in the liquid state by (i) placing the substrate and material out of contact with each other in a jig which is placed in a furnace, (ii) contacting the substrate with the material liquefied, and (iii) replenishing the liquid material on the surface of the substrate or varying the composition of the liquid material, by moving at least one slidable wall in the jig, whereby at least a quantity of a material in a liquid state which is separated from the first material is added to the liquid which is already in contact with the substrate. As shown, in jig 1, liquid material 6, is separated by slide 2 from substrates 5, whilst further liquid material 17 is retained on slide 7 containing apertures 14. Positioned below 7 is a slide 8 containing apertures 15, and between slides 7 and 8, is a structure 13, containing apertures 16. In operation withdrawal of slide 2 brings liquid 6 into contact with substrates 5. When the desired growth has been achieved liquid 17 is added to liquid 6, by aligning some or all of the apertures 14, 15, and 16. The materials are preferably semiconductors and in particular a mixed crystal of gallium arsenide and aluminium arsenide which is deposited from a solution in gallium.
Patent GB-877658-A (GB)
Title: A fluid control valve
IPC: F16K41/04
Filed: 1959-09-22
Abstract: 877,658. Valves. AUTOCLAVE ENGINEERS Inc. Sept. 22, 1959 [Sept. 22, 1958], No. 32197/59. Class 135. A lift valve comprises a body 1 having a seat 2 between an inlet 3 and an outlet 4. A bore 12, 17 extending axially away from the seat and screwed at 17, a valve stem 5 having a closure part 6 co-operating with the seat, packing 13 in the bore surrounding the stem, the stem extending through the packing into a space sealed thereby from the fluid, a shank 8 having a recess solidly receiving the outer end of the stem, this stem and the shank being anchored together, e.g. by a pin 10, an annular packing nut 16 surrounding and spaced from the shank and having external threads screwed into the bore for tightening the packing, the nut having internal threads opposite the shank, a sleeve 20 screwed into the packing nut and rotatably surrounding the shank, a pair of thrust surfaces on the shank spaced from opposite ends of the sleeve, a thrust bearing 22, 25 between each thrust surface and the adjacent end of the sleeve, one of the surfaces, e.g. provided on a nut 27, being adjustable to take up backlash, and a handle 21 on the sleeve for screwing the sleeve in and out to operate the valve.
Patent GB-1173428-A (GB)
Title: Improvements relating to the preparation of Catalysts
Inventor: BOURNE KENNETH HUGH
IPC: B01J23/889
Filed: 1966-08-18
Abstract: 1,173,428. Iron group metal catalysts. BRITISH PETROLEUM CO. Ltd. 15 Aug., 1967 [18 Aug., 1966], No. 32210/67. Divided out of 1169544. Heading B1E. Catalysts having an iron group metal on a support are made by forming a composite of the support and an iron group metal compound by impregnation and reduction of the compound to metal characterised in that the metal compound is reduced in the presence of a minor amount of another metal or compound thereof which is a different iron group metal or rhenium, and which has been added to the support after the first mentioned iron group metal. The support may be an inorganic oxide, metal silicate, (e.g. sepiolite) or aluminosilicate (e.g. clay) or active carbon but preferred are SiO 2 , Al 2 O 3 , MgO or mixtures thereof.
Patent GB-1531828-A (GB)
Title: Ceramic colour compositions and a method for decorating ceramic ware therewith
IPC: C04B41/89
Filed: 1976-08-03
Abstract: 1531828 Coating compositions HERCULES Inc 3 Aug 1976 [4 Aug 1975] 32294/76 Heading C3R [Also in Division C1] A ceramic colour composition, for decorating non-glazed ceramic ware, comprises a dispersion of ceramic pigment or glass colour in a moisture- or steam-settable liquid vehicle consisting of a solution of water-insoluble film-forming resin(s) (e.g. a rosin ester with acid number #50) in a water-miscible solvent therefor, e.g. glycol(s). After the application of the decoration the ceramic ware is coated with a glazing base which is fired. The resin coating step may be repeated prior to glazing.
Patent GB-1277057-A (GB)
Title: Preparation of grafted copolymers from crystalline polyolefines
IPC: C08F255/00
Filed: 1969-06-26
Abstract: 1277057 Grafting polyolefins SOC. NATIONALE DES PETROLES D'AQUITAINE 26 June 1969 [28 June 1968] 32431/69 Heading C3G A monomer is grafted on to an unpreactivated crystalline polyolefin by forming an aqueous suspension of the said polyolefin, bringing the suspension to a temperature equal to or greater than the melting temperature of the polyolefin, adding a free radical catalyst to the suspension and carrying out graft polymerization, the graft monomer being incorporated in the aqueous suspension along with the polyolefin or after the suspension has been brought to the said temperature but before addition of the catalyst. The aqueous medium may comprise a polar solvent miscible with water, e.g. ethanol or dimethyl formamide. In the examples polyethylene is grafted, the graft monomer being (a) ethyl acrylate, (b) acrylic acid, (c) n-butyl acrylate, (d) n-butyl acrylate and n-butyl methacrylate and (e) vinyl pyridine and ethyl acrylate, graft polymers (a) and (d) being saponified with ethanolic NaOH and the saponified graft polymer (a) being treated with HCl.
Patent GB-1522692-A (GB)
Title: Over cap
IPC: B65D51/24
Filed: 1975-08-04
Abstract: 1522692 Tamper-indicating closure caps BEHRINGWERKE AG 4 Aug 1975 [6 Aug 1974] 32450/75 Heading B8T An over cap 4,6, of plastics material for use in place of an aluminium cap for securing stoppered containers of lyophilized products comprises two members connected by at least three and preferably between four and ten bridging elements 5, the upper member 4 comprising a plate 10 and preferably a depending flange 11 and the lower member 6 comprising an annular member adapted to be a snap-fit on the neck of a container 13. Pressure applied to the plate 10 breaks the bridging elements 5, allows removal of the plate and stopper to allow access to the container contents. The closure cap may be injection moulded preferably from polyethylene, polypropylene, polyamide or polystyrene.
Patent GB-1024398-A (GB)
Title: A process for the production of halogen-containing nitriles
IPC: C07C45/69
Filed: 1964-08-10
Abstract: Halogen-containing nitriles are prepared by reacting together, in a polar solvent and in the presence of at least one iron compound as catalyst, an olefinic compound and a halonitrile of the general formula <FORM:1024398/C2/1> wherein X represents a halogen atom, Y represents a hydrogen or halogen atom and Z represents a hydrogen or halogen atom or a saturated or olefinically unsaturated aliphatic group containing 1-8 carbon atoms.  The invention also comprises 5-halo-1-(halo or dihalo)-3-hydrocarbenyl-1-mononitriles. Examples are given.
Patent GB-951244-A (GB)
Title: Improvements in and relating to cooking utensils
IPC: A47J27/10
Filed: 1959-09-24
Abstract: 951,244. Cooking vessels. D. ANDERSON, and D. HEALY. Sept. 21, 1960 [Sept. 24, 1959], No. 32566/59. Heading A4A. A saucepan or similar utensil comprises an inner vessel 10 and an outer vessel 11 connected together to provide a water space between them. The inner vessel 10 has an outward flange 13 around its top attached to the top of the outer vessel 11 to close the water space except at a filling orifice 15 having a funnel-like extension 16 for a whistle 17. The inner vessel also has a pouring lip 18. The vessels may be of the same or of different materials, e.g. brass, copper, or aluminium, and may be secured together by soldering.
Patent GB-624017-A (GB)
Title: Methods and apparatus for measuring and controlling a moving column of plastic material
IPC: B28C7/02
Filed: 1946-11-04
Abstract: 624,017. Pug mills. HAWK, E. A. Nov. 4, 1946, No. 32706. [Class 86] [Also in Group XXXV] A pug mill is adapted to give a constant output by driving the main shaft at a speed varying with the output flow of ceramic material. The pug mill 10 is provided with an opening 25 at the top with an elbow joint leading to a discharge aperture 32. A propeller 42 in line with the discharge aperture is rotated by the flowing ceramic material and rotates a disc 44 carrying on one side three concentric metallic rings, the two outer ones being connected through switches to opposite terminals of a reversible motor 68. The inner ring is connected through a relay switch into the generator circuit of the main motor 60. The opposite side of the disc is provided with four metal plates one of which is connected to the middle ring and another connected to the outer ring. The other plates are both connected to the inner ring. A constant speed motor 53 is provided beyond the disc 44 carrying a contact finger 56 connected through a generator 75 to the neutral terminal of the motor 68. The motor 68 operates a sliding rod 63 to actuate a Reeves gear for increasing or decreasing the speed of rotation of the pug mill shaft. If the output speed of ceramic material falls below a certain predetermined value the disc 44 slows down and the finger 56 contacts the middle ring and operates the motor 68 in a clockwise direction and so speeds up the drive on the main shaft of the pug mill. If the output becomes too great the drive is slowed down. If the plates connected with the inner ring of the disc 44 contact the finger 56 the relay switch is operated and the main drive is stopped. In an embodiment, the contact finger is rotated by means of reduction gearing and a flexible drive from a constant speed motor on a jiggering machine.
Patent GB-1116074-A (GB)
Title: Recording and reproducing system
IPC: H04N5/915
Filed: 1965-07-30
Abstract: 1,116,074. Video recording system. SONY CORPORATION. 30 July, 1965 [1 Aug., 1964], No. 32715/65. Heading G5R. A magnetic tape apparatus comprising a number of heads rotated to scan the tape from one edge to the other is characterized in that one or more heads are used for recording and an integral multiple of the recording heads are used for playback. In a first embodiment, Fig. 1, a magnetic tape is arranged in a 180 degrees helical wrap about a rotating drum carrying two heads Ha, Hb angularly spaced by an angle # slightly less than 180 degrees, and axially spaced along the drum a small distance M. The dimensions and speeds are so arranged that when recording the head Ha scans obliquely across the tape each alternate field of a two-field frame, i.e. only fields 1, 3, 5, 7 &c. are recorded. In playback, first head Ha scans a field, and the head Hb scans the same field resulting in an output signal in which each field is repeated twice, i.e. 1,1,2,2,3,3 &c. In a modification, Figs. 6, 7 (not shown), three angularly and axially spaced heads are employed every third frame being recorded and being played back three times. In a second modification, colour signals may be recorded using separate pairs of heads for luminance and chominance signals. The four heads may be at different angular spacing, Figs. 14, 15 (not shown), or may be in two pairs, Figs. 19, 20 (not shown). In a third modification, Figs. 10-11 (not shown), the tape makes a 360 degrees helical wrap, and the heads are only angularly spaced by a small amount. With this arrangement the vertical synchronizing signals are first separated out by a separator 15, Fig. 12, and are used to switch a bi-stable circuit 16 which operates a gate 14 so as to allow only alternate fields, or frames, of a video signal at 7 to be fed to recording head Ha. The synchronizing pulses are also recorded in a longitudinal track by head Ha. In playback, the synchronizing signals picked up by head Ha control a bi-stable circuit 19 which operates two gates 17a, 17b to connect heads Ha, Hb alternately to the output.