baber/WOPTO huggingface dataset:
Patent GB-1003078-A (GB)
Title: Improvements in and relating to chair-leg connections
IPC: F16B12/06
Filed: 1963-07-02
Abstract: 1,003,078. Furniture frames. F. DRABERT, E. DRABERT and F. DRABERT, [trading as DRABERT SOHNE]. July 2, 1963 [April 2, 1963], No. 26285/63. Heading A4H. The central pillar 2 of a chair is connected to the legs 1 by placing the lower end of the pillar 2 and the inner ends of the legs 1, which are not connected thereto, into a mould 4, filling the mould 4 with liquid material 3, e.g. aluminium alloy or a resinous material, and allowing it to cool or become cured. The pillar 2 and legs 1 may be formed from tubular heat resistant material and the inner ends of the legs 1 may be flattened before moulding to produce an increase in torsional strength.
Patent GB-1490280-A (GB)
Title: Gravity separator for separating particulate material
IPC: B07B4/08
Filed: 1975-06-20
Abstract: 1490280 Pneumatic separating FORSBERG'S INC 20 June 1975 [21 June 1974] 26328/75 Heading B2H  An apparatus for separating particulate material comprises a perforate, triangular deck 16 which slopes downwardly towards its front edge 16.1 and also slopes downwardly along its front edge from one corner 16.7 to the other 16.8, the deck being mounted for oscillation on a fixed base 12; means for moving air upwardly through the deck; an outlet 14.3 for delivering particulate material onto the deck; and an air outlet 22.2 arranged to direct air through the material falling from the outlet 14.3. The air stream introduced through the outlet 22.2 entrains the very light particulate material and carries it through an overhead exhaust part 14.2. The said air stream also distributes the remainder of the material over the oscillating deck 16; the lightest particles 11.2 being transported towards the lower front corner 16.8 and the heaviest particles being deposited near the rear corner 16.4. The movement and inclination of the deck cause all the particles thereon to travel towards the front edge 16.1, the lightest partides spilling over the edge adjacent the corner 16.8 and the heaviest particles spilling over the edge adjacent the comer 16.7. The particles are collected in a hopper 12.1 divided into compartments by partitions 17.1 whose positions can be adjusted by means of handles (17.3).
Patent GB-1017536-A (GB)
Title: Tubular connection for radiators
Inventor: OSTERMAN KARL
IPC: F24H9/12
Filed: 1963-07-03
Abstract: 1,017,536. Pipe connections. AGA-PLATFORADLING A.B. July 3, 1963, No. 26356/63. Heading F2G. [Also in Division F4]  A tubular connector attached to a radiator 5 has inlet and outlet pipes 4, 6 for the heating medium, the pipe 6 being connected to an aperture in the lower portion of the radiator and the pipe 4 being disposed within the pipe 6 and terminating at a higher level than that of the aperture; the pipe 4 extends into and fits substantially tightly in a vertical passageway 17 in the radiator.
Patent GB-762050-A (GB)
Title: Weaving looms
IPC: D03D47/24
Filed: 1954-09-13
Abstract: 762,050. Shuttleless looms. SULTZER FRERES SOC. ANON. Sept. 13, 1954 [Sept. 19, 1953], No. 26403/54. Class 142 (2). Weft patterning mechanism for a gripper shuttle loom comprises weft feeders 83, Fig. 5, carried by a feeder changer 81 which can be turned about its pivot by cam links 46a, Fig. 6, on a pattern chain 46 ; the selected feeder is located (for sliding endwise to present its weft to a shuttle) by a notched sector 84, Fig. 5, and a cam-operated lever 87. The pattern chain sprocket 45 is driven through a Geneva mechanism, the pin wheel of which may have less than its full complement of pins so that the pattern chain is not advanced on every pick of the loom; there may be two Geneva mechanisms in series to increase the scope of variability in the drive. A clutch (not shown) as interposed in the shaft 49 between the follower lever 48 and the feeder changer 81, the clutch having a single V-shaped dog so that if the loom is turned backwards, without moving the pattern chain, the dog rides out of the notch in the other clutch element and re-engages, under spring load, when the loom runs forward again. Fig. 10 shows a simpler mechanism controlling two weft feeders 131, with no pattern mechanism other than a cam 134 which imparts a greater movement to a rod 142 than is necessary to bring the feeder changer 128 against stops 156, 157, the surplus movement being absorbed by springs 154, 155.
Patent GB-1391403-A (GB)
Title: Method and apparatus for applying finish to a moving web
IPC: D06B19/00
Filed: 1973-06-04
Abstract: 1391403 Apparatus for applying a foamed coating E I DU PONT DE NEMOURS & CO 4 June 1973 [5 June 1972] 26452/73 Heading D1L An apparatus for preparing and applying a foamed mixture made from a pressurized gas and a coating liquid to a textile web moving in a path comprises (i) an elongated housing arranged in use to be positioned across the path and consisting of walls forming an inner chamber with a longitudinal slot through one wall which slot is in communication with the chamber and in use is disposed towards the path, (ii) means for mixing a supply of coating liquid with a supply of pressurized gas and (iii) a diffusion filter positioned in the chamber for receiving the mixture of coating liquid and gas from the means for mixing. If desired a pair of housings may be arranged on each side of the path to apply the mix to opposite sides of the web. The housing may be a cylinder with a perforated distribution plate fitted in the slot and means may be provided to adjust the length of the slot. The coated web may subsequently be dried. As shown in the figure the applicator assembly is generally designated by 100 and the foam producer by 10. The foam producer includes a pipe 12 extends from a solution supply (not shown) to a metering pump 14 which pumps solution via pipe 16 through a conventional filter 18 which is connected via pipe 20 to one side of a pipe tee 22. In the other leg of this system a pipe 24 extends from a compressor at source (not shown) through a throttle valve 26 and connected needle valve via pipe 28 through check valve 30, pipe 32 to the second side of pipe tee 22. Output from tee 22 passes by pipe 34 to prefoamer assembly 36, pipe 38 to a second prefoamer 40 and thence by pipe 42 to fitting 102 which is connected to applicator cyclinder 104 of the assembly 100, by a filter cartridge 106. The foamed coating is applied to the web from axial slot 108 via perforated distribution plate 112 fitted therein. Figure 4 (not shown) illustrates foam application to both sides of a moving endless tow.
Patent GB-521094-A (GB)
Title: Improvements in submarine mines
IPC: F42B22/08
Filed: 1938-09-10
Abstract: 521,094. Submarine mines. TAILLEFERRE, H., and BLAISE,ÀL. M. Sept. 10, 1938, No. 26494. Convention date, Oct. 22, 1937. [Class 9 (ii)] A mine, whether anchored or free, is provided with means which cause it to oscillate up and down to vary its depth of submersion. The mine 3 comprises a lower chamber 26 for ballast water which communicates with an upper chamber 24 through a tube 25. A liquefied gas, e.g., ammonia, in a vessel 15 is liberated by a valve actuated by a hydrostatic device in a chamber 7 when the mine descends, and the gas passes by a pipe 22 to the upper chamber 24. It thereupon exerts pressure on the ballast water and expels some of it through an escape valve in a bell 35. The mine then rises and the hydrostat projects a jet of water through a pipe 23 into the chamber 24 and dissolves the ammonia gas. The internal pressure being thus relieved, external water passes into the mine through the bell 35 and the mine again begins to sink. The ammonia gas is prevented from absorption by the ballast water by a film of oil A on the surface thereof. The rate of oscillation of the mine may be controlled by regulation of the size of the ports in the bell 35 and by a spring brake applied to a stem on the hydrostat piston.  The Specification as open to inspection under Sect. 91 describes also a metal lattice attachment 1, Fig. 1 (Cancelled), extending above and below the mine and, somewhat obscurely, a magnetic firing device which does not admit of satisfactory abridgment. This subject-matter does not appear in the Specification as accepted.
Patent GB-839826-A (GB)
Title: Method and apparatus for manufacturing hollow articles from thermoplastic material
IPC: B29C35/16
Filed: 1958-08-20
Abstract: 839,826. Blow-moulding hollow articles. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M. I. COLOMBO & C. Aug. 20, 1958 [Sept. 10, 1957], No. 26768/58. Class 87(2). An extruded tube 5 of e.g. polythene is blown into the shape of a mould having cooling jackets 9, by moving a mould (on endless chains or rotary tables) into contact with the tube, and moving the mould in the direction of the tube, closing the bottom of the tube by. members 11, dropping a tablet of gas producing material, e.g. ammonium carbonate, through a pipe 4 into the tube, sealing the other end of the tube by members 10, and allowing the heat of the tube to volatalize the tablet and blow the tube into the mould. Either or both of the members 10, 11 may be made integral with the mould. The operation may be controlled automatically by e.g. electric switches.
Patent GB-307519-A (GB)
Title: Improvements in thermionic valve amplifying systems
IPC: H04N5/60
Filed: 1927-10-10
Abstract: 307,519. British Thomson-Houston Co., Ltd., and Kinman, T. H. Oct. 10, 1927. Thermionic amplifiers.-A thermionic-valve high-frequency amplifier is made simultaneously selective to two or more predetermined frequencies by including a plurality of circuits Ls1, Cs1, Lh1, Ch1 tuned to different predetermined frequencies in the anode circuit of a valve V1, each tuned circuit affording a negligible impedance to frequencies to which the other circuit is tuned. The potential variations created by the tuned circuits are applied to the grid of a succeeding amplifying valve V2 or to a detector through a condenser C2 or by circuits tuned to the predetermined frequencies and respectively coupled to the corresponding tuned anode circuit. Specification 277,799 is referred to.
Patent GB-1465146-A (GB)
Title: Electorstiatic powder-coating method and apparatus
IPC: B05B15/04
Filed: 1974-06-17
Abstract: 1465146 Electrostatic powder coating FUJI PHOTO FILM CO Ltd and CHUGOKU MARINE PAINTS Ltd 17 June 1974 [18 June 1973] 26799/74 Headings B2E and B2L  Powder 2 is selectively coated on an article 1 by uniform deposition on the surface, the powder may be electrostatically adhered to the article and coating powder is selectively removed from areas not requiring coating. The coating powder may be charged before or after deposition.  Suitable coating powders include thermosetting resins, e.g. epoxy resins, phenol resins, unsaturated polyesters and polyurethanes, silicone resins and acryl resins and thermoplastic resins, e.g. polyvinyl chloride, polyvinyl acetate, cellulose acetate butyrate, vinyl chloride/ vinyl acetate copolymers, polyvinyl alcohol, polyethylene, polycarbonate, polypropylene, polyamides, polyfluorocarbons and polyesters. The diameter of the particles should be between 20 and 150 microns.  Suitable substrates include steel sheets, aluminium, copper, silver, gold and mixtures thereof. Glass or resin coated with a thin film of aluminium, palladium, copper, silver, gold or tin oxide may also be used as a substrate. A primer may be applied prior to powder coating or the surface may be grained or acid pickled. Coating powders 2 deposited on surface portions 4 and 5 of article I can be blown off by blower 6. Unwanted coating powder 7 is recovered by entrainment in the air flow which carries it to a recovery device. Alternatively unwanted coating powder can be sucked through port 8 into pipe 9 and recovery device 10. Metal plate 11 (Figure 6) to be welded or fusion cut may be conveyed by carriage 14 at a speed of 1-12 metres/minute. Charged coating powders are deposited on the plate by coating apparatus 15. Suction or air blow apparatus 16 removes excess powder. The coated substrate may be heated so that the powder forms a continuous film.
Patent GB-151288-A (GB)
Title: Improvements in "keyless" winding and setting mechanism for watches
IPC: G04B27/04
Filed: 1920-09-20
Abstract: 151,288. Jackson, W. J. Mellersh-, (Soc. Anon. d'Horlogerie et Bijouterie de Geneve). Sept. 20, 1920. Keyless mechanism. - In keyless winding and setting mechanism for watches in which the sliding pinion is brought into gear with the winding pinion or with the setting-gear according as the winding-stem is pushed or pulled, the " tirette " i, Figs. 1 and 3, or two-armed lever which is actuated by the stem m, is pivoted in a recess on the outer face of the large or dial plate g while the spring rock-arm k whose end k' engages the sliding pinion o is arranged on the inner face. The end i<1> of one arm of the lever i is bent at right-angles to engage the usual groove in the stem m, the end of the other arm being formed as a guiding-ramp having a straight portion i<2> and a curved portion i<3>, which act on a stud l projecting from the arm k through an elongated hole g<1> in the plate g. The portion i<2> serves to push the stud l down to bring the pinion o into engagement with the setting-gear, the portion i<3> locking it in the setting position against the spring action of the arm k. In a modification, Fig. 7, the rock-arm k is formed separate from the spring which acts on the rounded portion carrying the stud l. In a further form, the " tirette " i carries the stud l, and the rook-arm k, Fig. 11, is formed with the guiding-ramp k<2>, k<3> and a projection k<4> against which the separate spring acts. The locking portion of the ramp, instead of being circular, may be angular or may be a flange forming an obtuse angle with the flange which plays the part of a ramp.
Patent GB-602284-A (GB)
Title: Improvements in electric fans
IPC: F04D25/10
Filed: 1945-10-13
Abstract: 602,284. Electric fans. SPENCER, T. D., and PATENT LIGHTING CO., Ltd. Oct. 13, 1945, No. 26828. [Class 110 (i)] In a fan of which the motor 6, Fig. 1, is mounted on a base 1 for gyratory movement produced by a crank arm 10 pivoted to the base and rotated about the motor axis through reduction gearing, the reduction gear includes a reaction gear-wheel 17, Fig. 4, an output gear-wheel 20 coaxial therewith and having a pitch circle diameter differing slightly from that of the reaction wheel, and an input member 21 coaxial with the wheels 17, 20 and on which is journalled eccentrically a gearwheel 28 meshing with the wheels 17, 20. The wheels 17, 20 have 100 and 99 teeth respectively. Wheels 29, 30, in fixed angular relationship, but with teeth relatively displaced half a tooth pitch, may be arranged on a second journal 27 on the input member diametrically opposite to the journal 26 carrying the wheel 28. The journal 27 and wheels 29, 30 may be replaced by a balance weight.
Patent GB-411010-A (GB)
Title: Improvements in rotary valves of internal combustion engines and pumps
IPC: F01L7/02
Filed: 1933-10-02
Abstract: 411,010. Valves. CROSS, R. C., 33, Midford Road, Odd Down, Bath. Oct. 2, 1933, No. 27031. [Class 7 (vi).] The housings of the rotary valves of internal-combustion engines and pumps are provided with a port 3 having a continuous integral lip 4 normally tending to project towards the valve space. The port may be formed in a detachable unit 2, which may be of different metal from the rest of the housing, and may be attached to the adjoining parts by means of flanges 5. Specifications 276,890, [Class 7 (vi)], and 373,660 are referred to.
Patent GB-1307144-A (GB)
Title: Benzodiazepine derivatives processes for producing them and compo sitions containing them
IPC: C07D243/26
Filed: 1971-04-19
Abstract: 1307144 Benzodiazepines SUMITOMO CHEMICAL CO Ltd 19 April 1971 [23 April 1970 14 May 1970 (2)] 27064/71 Heading C2C Compounds of the general formula (R = C 1-4  alkoxy, C 3-6  cycloalkyl; X = halogen; Y=C 1-4  alkyl; n= 1-3) and their acid addition salts are prepared by (a) reacting a compound of the formula with a reactive ester of BC n H 2n OH, or (b) removing the protecting group(s) from a compound of the formula (Z = nitrogen protecting system) and ring-closing the product, optionally followed in either case by salt formation. The above compounds are sedatives, muscle relaxants, hypnotics and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier. Reference has been directed by the Comptroller to Specification 972,968.
Patent GB-770025-A (GB)
Title: Device for steering aircraft, rockets and the like, having a jet propelling nozzle
Inventor: BERTIN JEAN HENRI
IPC: B64C9/38
Filed: 1953-10-02
Abstract: 770,025. Reaction propelled aircraft. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Oct. 2, 1953 [Oct. 10, 1952], No. 27103/53. Class 4. [Also in Group XXVI] A device for steering an aircraft having a jet propulsion nozzle is characterized by a tubular member 4 having a longitudinal slot 2, mounted at the nozzle outlet and rotatable relatively thereto about its axis, the latter being perpendicular to the nozzle axis, the slot opening into the jet at an angle depending on the position of member 4, the latter being connected to a source of gas under pressure. In the embodiment of Fig. 1, a rectangular section nozzle 1 is provided with a curved smooth extension 3 along one of its longer sides, and has on its opposite side a cylinder 4, provided with a slot 2, rotatable in a part cylindrical housing 5 secured to the nozzle. A servo-operated toothed rack may rotate a pinion fast to the cylinder. The interior of the cylinder is connected through a valve to a source of pressure, e.g. the compressor or combustion chambers of a turbo-jet unit, so that a transverse jet of variable direction issues from slot 2. Variation of the direction of the transverse jet varies the direction of the main jet to control the aircraft. In a modification, the housing 5 comprises a wide slot, and a wide slot is provided in the cylinder 2, so that rotation thereof causes the slots more or less to overlap, controlling the quantity of flow in the directing jet. In this case the valve in the pressure supply line, which may be of the simple full on or full off type, may be omitted. Specifications 691,302, 691,948 and 696,088 are referred to.
Patent GB-1223805-A (GB)
Title: Glass tube manufacture
Inventor: REEVES ALEC HARLEY
IPC: C03B17/02
Filed: 1969-05-29
Abstract: 1,223,805. Glass tube manufacture; glass fibres. STANDARD TELEPHONES & CABLES Ltd. 29 May, 1969, No. 27162/69. Heading C1M. A hollow open-ended cylinder of glass having a radially graded composition is made by causing molten glass 5 to flow under gravity at a controlled rate down the interior wall of an open-ended tube 2 which rate is determined in relation with a variation with time of the glass composition and of the temperature of the tube 2 so that a succession of substantially uniform thickness layers 6 of solidified glass are built up on the wall. The crucible 1 is heated at 3 and tube 2 at 4 and the glass 5 is flowed over the top of tube 2 to form layer 6 while excess glass 7 flows out at 8. Fresh layers are built up by changing the composition and the required temperature of tube 2 to give discrete layers or alternatively the composition and temperature may be changed continuously. The tube of glass is then removed, preferably by dissolving off the tube 2, and heated and pulled to form a rod and thence a fibre into graded composition. The graded fibre is particularly for fibre optics with refractive index increasing towards the centre. Suggested glasses therefor are initially, in weight percentages: Na 2 O 15; CaO 10; SiO 2  75 which is gradually changed to Na 2 O 20; CaO 10; SiO 2  70 giving the centre with increased refractive index.
Patent GB-1016328-A (GB)
Title: Improvements relating to radial seals for rotary-piston engines
IPC: F01C19/10
Filed: 1964-07-01
Abstract: 1,016,328. Rotary-piston engines. DAIMLER-BENZ A.G. July 1, 1964 [July 4, 1963], No. 27231/64. Heading F1F. A three or more sided piston 2, of trochoidal type for a rotary-piston engine Fig. 1, (not shown particularly an I.C. engine, in which each of a plurality of axially-extending grooves 3, located each at a piston corner 1, contains two radial spring-loaded sealing strips 4, 5, one behind the other in the direction of piston rotation, wherein one of the strips has a smaller mass than the other. This can be achieved by making one strip radially shorter than the other, making one of steel and the other of light weight metal, making one solid and the other hollow or by providing one or more recesses in one of the strips. The result is that the natural periods of oscillation of the two strips is different which produces relative movement and friction between the strips to damp down movement and reduce wear on the perpheral surface 8 of the housing 9.
Patent GB-1504005-A (GB)
Title: Safety device for a pump fed oil-fired heater having a flue damper
IPC: F23N1/06
Filed: 1975-06-27
Abstract: 1504005 Valves S A NILSSON 27 June 1975 [24 April 1975] 27397/75 Heading F2V [Also in Division F4] A safety device for a damper 6 in the flue 2 of an oil-fired heater 1 comprises a valve means 28 for controlling oil flow between a pump 18 and a burner head 27, and a damper position sensor 29 which controls the valve means to shut off the oil supply when the damper is moved to close the flue. Butterfly damper 6 is carried by a spindle 5 which is pivoted by a piston and cylinder actuator 10 and an arm 8, and also carries an eccentric 7 which coacts with the contact 33 of a limit switch 31 which controls valve 28. Pump 18 is connected to an electric control system 20 which includes a thermostat 21, a relay 22, and a pyrostat 23, and controls the stopping and starting of heater 1. In operation, oil is supplied by pump 18 to cylinder 11, which opens damper 6. Simultaneously, oil is supplied to burner head 27. When pump 18 stops, the pressure in pipe 17 decreases, so that damper 6 is closed by a spring 16 and eccentric 7 causes switch 31 to close valve 28 to shut-off the oil supply to burner head 27. The oil to the burner head may be supplied through cylinder (36), Fig. 2 (not shown). Valve 28, Fig. 3 (not shown), may include a clock box (42).
Patent GB-780117-A (GB)
Title: Device for sealing fluid lubricant in the hub of a rotating wheel
IPC: F16J15/32
Filed: 1955-09-28
Abstract: 780,117. Oil seals. KAYSER, A. J. Sept. 28, 1955, No. 27634/55. Class 122 (5). A wheel hub is sealed against oil leakage by a resilient sealing ring 20 radially compressed between the hub bore and a rigid ring 21 of circular crosssection located in a V-groove 25 in its inner periphery and having a flexible circular sealing lip 24 extending from its inner surface into resilient sealing contact with the radial flange 19 of a metallic L-section ring 18 fixed to the wheel axle. The sealing ring 20 has a free external diameter larger than the hub bore and is provided on its outer surface with ratchet-like ridges 22 and a second flexible sealing lip 23 that extends into resilient contact with the flange 19 to prevent ingress of dust and moisture. Specification 694,706 is referred to.