baber/WOPTO huggingface dataset:
Patent GB-346337-A (GB)
Title: Method of and apparatus for making sand cores
IPC: B22C13/14
Filed: 1929-12-30
Abstract: 346,337. Making foundry cores. MOREHEAD, F. H., 144, Amory Street, Brookline, Massachusetts, U.S.A. Dec. 30, 1929, No. 39754. [Class 83 (i).] Cores for casting pipes, columns &c. are formed on a flexed rotary arbor or by rotating a coated arbor in contact with a flexed knife; the flexure being in timed relation to the rotation of the arbor. Such a core is straightened in use by the density of the cast metal. A perforated arbor 14 is mounted by rollers 16 on a stand 10 and rotated by a key 23 on a shaft 20 driven by toothed gearing 22, 25 and a pulley 8. An inclined blade 27, which is flexed by a cam 40 driven through toothed gearing 46, shapes mould material dropped on the arbor by a riddle 53 and hopper 50. In a modification the blade is stationary and the arbor is rotated in a flexed condition by securing eccentrics 73, adapted to rotate in bearings 72, on projecting ends of the arbor. The arbor is, in this case, held by three rollers 62 at each end.
Patent GB-1409241-A (GB)
Title: Spreading of particulate matter
IPC: B05C19/00
Filed: 1971-08-25
Abstract: 1409241 Even particulate coating IMPERI AL CHEMICAL INDUSTRIES LTD 18 Aug 1972 [25 Aug 1971] 39841/71 Heading B2E [Also in Division Dl] Apparatus for evenly distributing even small quantities of particulate material onto a substrate comprises, a hollow cylinder 1 having a slot 4 therein extending parallel to the axis of the cylinder; a rotor 2 comprising a shaft 5 mounted coaxially through the cylinder 1 and a plurality of axially extending vanes 7 mounted at their ends by supports (8), Fig 3 (not shown), fixed to the shaft 5, the rotor 2 being at least as long as the slot 4, the outer edges of the vanes 7 lying adjacent but not touching the inner wall of the cylinder and the vanes 7 having a radially measured dimension less than the internal radius of the cylinder 1 so that a channel 20 is defined; means for supplying particulate matter at a constant rate to the channel 20; said rotor being rotatable at a uniform rate to maintain turbulence in the fluid within the cylinder; and means for advancing a substrate at a uniform rate adjacent the slot 4. The vanes may be interconnected by braces 6. Preferably a turboblower 33, 33', Fig 4, forces air past a baffle 32, 32' to entrain particles supplied from a vibro-screw feed 31, 31' and carry them to the channel 20, 20' of apparatus mounted on both sides of a substrate. The substrate 21 is preferably non-woven fabric of 5 denier fibres with a core of nylon 6.6 and a sheath of nylon 6, the core being 65% of the total fibre weight, the fibres being bonded by heating to soften the nylon 6 sheath. Self cross-linking acrylic adhesive emulsion 25 may then be applied by a gravure roller 22 dipped in a trough 26 and having a doctor blade. Fibres of α-cellulose are then applied by the apparatus before the adhesive is dried by a drier 41.
Patent GB-975209-A (GB)
Title: Well head assembly
Inventor: RAULINS GEORG MAX
IPC: E21B33/04
Filed: 1962-10-26
Abstract: 975,209. Wells &c. OTIS ENGINEERING CORPORATION. Oct. 26, 1962, No. 40527/62. Heading E1F. In a well tool arrangement comprising a well head 20 and hanger members 72, 72b, 72c, 170 telescoped therein defining annular flow passages 200 -- 203, each hanger member has a lateral port connecting one flow passage to the exterior of the housing (i.e. through conduits 26 -- 29), and the hanger members are individually and releasably locked one within another. The hanger members are located within the well head by means of dogs 73, 73b, 73c, 173, the dogs being locked in their outermost positions by axially movable sleeves 84, 84b, 84c, 175. The well head is supported by tubing 210 and the hangers support casings 120b, 120c, 120d. After lowering the hanger 72 into position by a tool (Fig. 6, 8, not shown), seals 158 - - 161 are compressed by fluid (cement) applied through a valve 142. Seals 158b, 159b, 160b and 158c, 159c are also compressed by fluid supplied through valves 148b, 148c. In the construction shown in Fig. 9, ball valves 303, 333, 377 control the sealing fluid, and the casing 120b is supported by slips 342 so that an additional seal 325 is required. Fig. 12 (not shown) illustrates an arrangement in which the seals are gas filled 'O' rings engaging tapered surfaces, and a scraper on each hanger cleans those surfaces in assembly.
Patent GB-862991-A (GB)
Title: Improvements in or relating to rotary hearth heating furnaces
Inventor: DAUCH ALAN D
IPC: C21D9/00
Filed: 1958-12-16
Abstract: 862,991. Rotary hearth furnaces. SALEMBROSIUS SOC. ANON. HOLDING. Dec. 16, 1958, No. 40630/58. Class 51 (2). A rotary hearth furnace for heating billets, slabs &c. in hot-working operations comprises sets of burners 27 disposed across raised sections of the roof 13, 16, 19 and 22 having respective inclined sections 12, 15, 18 and 21, with burners 28 in the side walls of a final soaking zone 25. A discharging opening 4 and charging opening 5 are provided in the outer side wall, and a single waste gases flue 9 leads to a stack.
Patent GB-1055614-A (GB)
Title: Colour lakes
Inventor: HERTEL OTTO
IPC: C08G14/12
Filed: 1964-10-07
Abstract: A colour lake consists essentially of a basic dye and an alkali-soluble condensation product which is obtained by reacting in an acid aqueous medium (a) 2-5 mols. of an aromatic hydroxy compound, (b) 1-6 mols. of urea, alkylurea or alkylene urea or a methylol or methylol ether derivative thereof, (c) 1-6 mols. of an aromatic mononuclear carboxylic, sulphonic, aminocarboxylic, aminosulphonic or hydroxycarboxylic acid or an aliphatic dicarboxylic acid or an aryloxy fatty acid, and (d) 9-11 mols. of formaldehyde or a compound yielding formaldehyde, the formaldehyde preferably amounting to 38-50 mol. per cent of the total. Suitable compounds are (a) phenol, the cresols, 4-t-butylphenol, thymol, a - and b -naphthols. pyrocatechol (empyreumatic oils), partly methylated pyrocatechol, resorcinol, hydroquinone, 2- and 4-hydroxydiphenyl, 4,41-dihydroxy-diphenyl-methane, -propane and -sulphone, 4-hydroxydiphenylsulphone and phenylhydroxynaphthylsulphone, (b) urea, methylurea, N,N1-dimethylurea, ethyleneurea, propyleneurea, and acetylenediurea, and preferably methylol or dimethylolureas and alkyl ethers thereof, when (d) is correspondingly reduced, (c) benzoic acid, benzenesulphonic acid, p-toluenesulphonic acid, anthranilic acid, sulphanilic acid, 2-hydroxy-4-aminobenzoic acid, salicylic acid, gallic acid, malonic acid, glutaric acid and phenoxyacetic acid, (d) free formaldehyde, formalin, 1,3,5-trioxane, paraformaldehyde and hexamethylene tetramine.  The condensation is preferably conducted between 30 DEG  C. and the reflux point.  The products may be washed with hot water and dried in vacuo, or on a roller or in a spray dryer.  They are soluble, e.g. in methanol, ethanol, ethylene glycol, and acetone, and may be used as laking agents for basic dyes, e.g. auramine, rhodamine, Victoria Blue, methyl violet and crystal violet dyes and malachite green, to be used in carbon paper waxes, lithographic compositions and ballpoint pen inks.  In examples, hydroxy diphenylsulphone, phenol or 4,41-dihydroxy-diphenylsulphone, plus thymol, resorcinol, hydroquinone, 2 - hydroxydiphenyl or p - t - butyl-phenol, and salicylic acid, and dimethylolurea or a urea-formaldehyde mixture are added to concentrated HCl and refluxed.  In other examples, benzoic, anthranilic, sulphanilic or salicylic acid and dimethylolurea or its methyl ether or dimethylol ethyleneurea are added separately to the reaction product of 4,41-dihydroxydiphenylsulphone or p-t-butylphenol with formalin in hydrochloric acid solution. A flexographic printing ink containing 30 parts of a styrene/diethyl maleate copolymer, 90 of ethanol, 10 of ethylene glycol, 7 of rhodamine B and 14 of a hydroxydiphenylsulphone/thymol/ salicylic acid/dimethylolurea condensate is described.
Patent GB-1206210-A (GB)
Title: Impregnated thread for use in dentistry
Inventor: LENNE CURT YNGVE
IPC: A61L17/00
Filed: 1968-08-27
Abstract: 1.206,210. Surgical threads. BOFORS A.B. 27 Aug., 1968 [29 Aug., 1967], No. 40900/68. Heading A5R. [Also in Division D1] Thread, for use in dentistry, is composed of rayon fibres which may be mixed with a minor proportion of natural, e.g. cotton fibres, and is impregnated with at least one substance having vaso constrictive, astringent or etching properties suitable for laying free the gingival preparation limit. Such substance may be adrenalin, aluminium oxychloride or zinc chloride, or a mixture thereof.
Patent GB-928685-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1959-12-02
Abstract: 928,685. Smokers' ash-trays. HAPPICH G.m.b.H. GEB. Dec. 2, 1959 [Dec. 11, 1958], No. 41007/59. Class 130. A vertical base-plate 1 having holes for screw attachment to a railway coach wall carries on a bracket 2 a pivot 3 for a tipping ash receptacle 4 which is held in the operative position by engaging locking recesses 10 in two closely-spaced arms 16 which pass through two slots 15 in the receptacle 4 and which are mounted on a strip 11 slidably retained to the base plate 1 and having a projecting end 12 for operating it against a spring 19 to release the receptacle 4. The arms 16 are automatically lifted by their underedges 14 on return of the receptacle, which has a lid 9 held closed or open by a spring 8. In use, the arms 16 project inside the receptacle 4 to form a cigar rest.
Patent GB-1462495-A (GB)
Title: High-content azide  formulation
IPC: A01N59/08
Filed: 1974-09-20
Abstract: 1462495 An azide formulation P P G INDUSTRIES Inc 20 Sept 1974 [3 Oct 1973] 41031/74 Heading A5E A granular agricultural product having a high content of an alkali or alkaline earth metal azide, a liability factor below 20%, as well as a particle size of 8-100 mesh (U.S. Standard), comprises 20-80% by wt. of the azide and 15-75% by wt of a diluent material which is at least one alkali metal halide. The preferred composition contains sodium azide with a stabilizer e.g. K2CO3 (1-5% by wt) and a binder (.2-10% by wt) e.g. sodium silicate, dextrin or polyvinyl alcohol and can be prepared using e.g. a pellitising disc or fluidised bed equipment.
Patent GB-1358912-A (GB)
Title: Manufacture of pile fabrics
IPC: D04H11/00
Filed: 1971-09-06
Abstract: 1358912 Pile fabrics FORSCHUNGSINSTITUT FUR TEXTILTECHNOLOGIE 6 Sept 1971 41372/71 Heading D1K A simulated corduroy is made by stitched pile material 2 to a base fabric 1 and severing the pile material between the rows of stitches to form pile tufts 2a, 2b. Each stitch is inserted between the legs of the tufts so that each leg is individually stitched to the base fabric and the loops 2c of the tufts extend in the same direction as the stitches. The pile material zig-zags between adjacent rows of stitches and two rows of different coloured pile material, Figure 4, may be utilised. The pile may be laid over warpwise pile wires before cutting.
Patent GB-952977-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
IPC: G21C5/14
Filed: 1962-11-01
Abstract: 952,977. Fuel elements. GENERAL DYNAMICS CORPORATION. Nov. 1, 1962 [Nov. 15, 1961], No.41431/62. Heading G6C. A nuclear reactor ceramic fuel element comprises a stack of hollow ceramic moderator blocks within which is a second stack of ceramic moderator blocks, defining therebetween an annular space in which are positioned a plurality of ceramic fuel rods. The invention is particularly applicable to gas (e.g. helium) cooled reactors, and the moderator ceramic used in the fuel elements may be graphite, alumina, or zinconia, but it preferably beryillia; the fuel rods assembled within the element are a mixture of a fissile oxide and a ceramic moderator such as beryllia or alumina, enclosed in stainless steel tube. Fuel element. The fuel element 12 (Fig. 1) comprises a series of hollow square section ceramic moderator blocks 14 lined internally with a stainless steel tube 60; the inner stack of ceramic moderator blocks 74 is lined externally with a stainless steel tube 100; thus the two tubes define are annular space 76 which contains the fuel rods. The top end of the element is capped and includes a lifting knob 98. The lower end cap locates on a nozzle 40 in the lower grid plate 24 of the reactor, and has means for passing coolant gas from the lower plenum chamber to the annular fuel rod space. A central tube 72 provides additional locating means for the inner moderator stack, and also provides a channel for housing instrumentation leads 96, which lead to a connector 58 at the bottom of the element. Immediately above the connector 58 is a stainless steel strainer 56 for filtering coolant gas entering the element through ports 59. Fuel rod. In the fuel element described, there are 18 substantially identical fuel rods. Each stainless steel fuel rod can 114 is capped at both ends and includes a ceramic plug 120; which is relatively pervious to fission product gaees, situated immediately below the fissile material 122. The space 124 below the plug 120 acts as a fission gas expansion chamber. The fuel may be enriched urania, or thoria and is intimately mixed with a ceramic moderator. A minor difference resides in the top cap construction; 6 of the 18 top caps include pins 130 to facilitate alignment of the fuel rods within the annulus. Specification 941,661 is referred to.
Patent GB-1096208-A (GB)
Title: Dynamo-electric machine with direct cooling of the rotor winding
IPC: H02K3/22
Filed: 1965-09-30
Abstract: 1,096,208. Cooling for dynamo electric machines. BROWN, BOVERI & CO. Ltd. Sept. 30, 1965 [Oct. 2, 1964], No. 41566/65. Heading H2A. In a dynamo-electric machine, e.g. a turbogenerator, cooling gas enters the hollow conductors of the rotor winding at inlet ducts A, B, A<SP>1</SP>, B<SP>1</SP>, in each end winding and emerges at a region C, C<SP>1</SP> intermediate the ends of the rotor and at least one of the ducts B or B<SP>1</SP> is arranged so that when gas passes through it an injector effect is produced to suck gas through another of the ducts A or A<SP>1</SP> into the winding. The end winding conductors may have thicker walls than the parts of the conductors in the slots so as to enable the inlet ducts B, B<SP>1</SP> to be formed obliquely and give the required gas injection.
Patent GB-983612-A (GB)
Title: Improvements relating to cooking utensils
Inventor: BATE FRANK
IPC: A47J36/20
Filed: 1962-11-06
Abstract: 983,612. Cooking vessels, REVO ELECTRIC CO. Ltd. Oct. 18, 1963 [Nov. 6, 1962], No. 41909/62. Heading A4A. A roasting dish, or like cooking utensil, comprises a tray 3 supporting a perforated dish-shaped platform 4 having a non-planar food-receiving portion 4b, and sloping side walls integrally connected to the portion 4b, which is formed adjacent its juncture with the side walls with several elongated slots 4d each of which is substantially parallel to the adjacent part of the juncture. The portion 4b may be of conical or pyramidal configuration and may have a perforation 4e at its apex, and the side walls may have perforations 4c.
Patent GB-1055605-A (GB)
Title: Oil burner apparatus
IPC: F23N1/00
Filed: 1965-10-05
Abstract: 1,055,605. Supplying oil to burners. DANFOSS A.S. Oct. 5, 1965 [Oct. 30, 1964], No. 42210/65. Heading F4T. An oil pump 2 (Figure not shown), supplying a burner nozzle 4 through a cut-off valve 4 is driven by an asynchronous electric motor 1 having a main winding 7 and an auxiliary winding 8 arranged so that when the motor is deenergized the two windings form a complete circuit and the current therein brings the motor to rest in a relatively short time. The two windings may be permanently arranged to form a closed circuit, Fig. 1 (not shown), or a starter switch controlling the auxiliary winding closes or is shunted by a further switch when the main switch is opened, Fig. 2.
Patent GB-1271858-A (GB)
Title: Method of and device for measuring the thickness of metal strip
IPC: G01B15/02
Filed: 1969-08-26
Abstract: 1,271,858. Thickness measurement by radar. INSTYTUT METALURGII ZELAZA IM STANISLAWA STASZICA. 26 Aug., 1969 [26 Aug., 1968], No. 42365/68. Heading H4D. In gauging the thickness of a metal strip by microwave reflection therefrom, the strip is displaced along a reference surface from which the microwave aerial is maintained at a constant distance. The strip may be measured before or after being rolled.
Patent GB-1360284-A (GB)
Title: Fluid stream direction indicator
IPC: G01P13/02
Filed: 1971-09-13
Abstract: 1360284 Measuring direction of fluid flow electrically THOMSON - CSF 13 Sept 1971 [23 Sept 1970] 42651/71 Heading G1N Apparatus for indicating the direction of flow of a fluid comprises a tube 1 rotatable on bearings 2 and fixed to a rotor 5 having three vanes 51, 52, 53 movable within respective chambers 41, 42, 43 in a stationary housing 3 so as to equalize the fluid pressures in the parts a 1 , b 1 , c 1 , of the chambers with those in the parts a 2 , b 2 , c 2 , due to fluid communication with two rows of pressure tappings 81, 82 in the tube, the resultant angular displacement of the rotor being sensed electrically by synchros, resolvers or potentiometers on tube extension 1a, and a test electric motor including a rotor 11 and stator 26 connected to the tube so that angular displacement of the tube may be effected for checking the functioning of the apparatus in the absence of a fluid. The rotor 11 has three magnetic poles and the stator six polepieces and coils and is energized so that three different positions of the rotor are possible. The apparatus is said to be applicable to detecting the angle of incidence or yaw angle of an aircraft.
Patent GB-1022541-A (GB)
Title: Improvements in pulverizing mills
IPC: B02C13/28
Filed: 1962-11-12
Abstract: 1,022,541. Beater mills. BABCOCK & WILCOX Ltd. Nov. 12, 1962 [Nov. 11, 1961], No. 42652/62. Heading B2A. In a mill for pulverizing and drying material, e.g. raw brown coal, comprising a staged beater mill section 1, Fig. 1, and a fan mill section 2, the beater mill section is formed so that the diameters of adjacent mill stages are different, and the diameter of the last beater mill stage is not greater than the diameter of the inlet aperture 41 of the fan mill section. The beaters 11 are arranged in three annular rows, and are respectively, equi-angularly spaced around a shaft 3, each row together with the lining 9 secured to the casing 8, constituting a stage. Material and gas delivered through an inlet 6 are prevented from entering the first stage radially inwardly of the path swept by the beater heads by a plate, rotating with shaft 3, comprising a cover disc 24 and a curved plate reinforcement 25. In a further embodiment, the protective structure 24, 25 is replaced by an oval plate inclined downwardly and inwardly towards the first beater stage and attached to a stationary shaft projection tube extending around the mill shaft 3, a complementary curved member being welded at one edge to the edge of the plate. A disc 34 secured to the shaft hub 12 separates each mill stage, but can be dispensed with where the beater heads are mounted on arms which broaden towards the hub to which they are secured, Fig. 5 (not shown). The fan mill section 2 comprises a rotor having a circular row of vanes 21 extending around the axis of shaft 3. The vanes are located between a disc 18, secured to a hub 17 of the shaft, and an annular disc 19, axially spaced from disc 18, and connected to disc 18 by cross-members 20, the vanes being removably secured to discs 18 and 19. The fan mill inlet aperture 41 is outwardly defined by the inner edge of the annular disc 19. Material is led into the fan mill section by a short transition shaft 23, whose inner surface is flush with the inner surface of a section 9 of wear resistant material, which is of smaller diameter than the last of the beater mill stages. A three stage beater mill section may be formed with the first and third stages of equal diameters and the second stage of either greater or less diameter, the linings 9 associated with the smaller diameter stage or stages being made thicker than that of the other or others. The beater heads of one beater stage may be staggered with respect to the beater heads of an adjacent beater stage.
Patent GB-1145753-A (GB)
Title: Improvements in or relating to window constructions
Inventor: ELLIOTT NORMAN BARTON
IPC: E04F10/06
Filed: 1965-10-07
Abstract: 1,145,753. Window frames; awnings. B. H. TECHNICAL DEVELOPMENTS Ltd. 21 Dec., 1966 [7 Oct., 1965], No. 42685/65. Heading E1J. In a window construction as claimed in Specification 1,040,251 the frame member 4 of a surround frame 1 houses a roller blind 5 extendable through a horizontal slot 7 for use and having its outer edge 6a connected to a bar 9, end-connected to the outer ends of arms 10, hinged to the vertical frame members, U-shaped in cross section and engaging, when out-of-use, over the hollow flanges or ribs 2 of the members. When the blind 5 is unrolled, the bar 9 forms a weather seal and a rain-deflecting member.
Patent GB-904554-A (GB)
Title: Improvements relating to the cooling of semi-conductor devices
Inventor: SAUNDERSON DAVID MERVYN
IPC: H01L23/40
Filed: 1959-12-16
Abstract: 904,554. Semi-conductor devices. STONE & CO.. (DEPTFORD) Ltd., J. Nov. 4, 1960 [Dec. 16, 1959], No. 42779/59. Class 37. A semi-conductor device such as a transistor or, as shown (Fig. 2), an encapsulated Ge or Si rectifier 4, has a conical portion 3 which is received in a complementary recess 2a in a heatdissipating body 1a. The rectifier 4 extends into a counterbore 17a in the body 1a to which it is bolted, the arrangement being such that the edge 5 of the rectifier adjacent the conical portion does not seat against the body. The body 1a, which comprises a plurality of fins 20, may be produced by extrusion. Fig. 1 shows an arrangement similar to that described in Specification 881,571, in which the conical portion 3 of rectifier 4 is received in a complementary recess 2 in a heat-sink body 1 of Cu, A1, &c. A thin disc 6 of mica &c. is interposed between body 1 and a thickened portion 7 of the wall of a box, e.g. of cast Al, in which the rectifier is mounted by means of a threaded stud 9 passing through an insulating, e.g. ceramic, bush 8 and a mica washer 14, and being secured by nut 10 in a recess 11 in the exterior of the wall, the recess being filled with insulating compound and closed by an A1 disc 19.
Patent GB-868561-A (GB)
Title: Improvements in or relating to cast iron
IPC: C21C1/10
Filed: 1959-12-16
Abstract: A process for producing cast iron containing nodular graphite and less than 0.04% magnesium comprises adding to the molten cast iron calcium silicide, calcium fluoride and a magnesium alloy, the amount of magnesium alloy being in excess of that required to produce more than 0.04% magnesium and the amounts of calcium silicide and calcium fluoride being such that less than 0.04% of magnesium is retained and casting the metal.  The magnesium alloy may be a magnesium ferro-silicon containing 8% magnesium, and 1% of each of the magnesium alloy, calcium silicon and calcium fluoride may be added to the melt.  The melt is preferably low in sulphur though not necessarily so and, if required, ferro-silicon may be added as a graphitizer.