baber/WOPTO huggingface dataset:
Patent GB-1474605-A (GB)
Title: Surface acoustic wave devices
IPC: H03K5/06
Filed: 1975-05-14
Abstract: 1474605 Surface wave devices DEFENCE SECRETARY OF STATE FOR 14 May 1975 [13 May 1974] 21148/74 Heading H3U In a surface wave device, waves from input transducer means 2 travelling along tracks 3 and 4 are respectively reflected by gratings 5, 6 towards further gratings 9, 10 which reflect the waves to output transducer means 13, 14, metal layers 15, 16 of varying width being provided between the gratings in each track so as to vary the velocity of waves passing beneath them and thus to determine the impulse response of the device. The grating elements 7, 8 are strip conductors or equal depth grooves and, as shown, their spacing varies along the length of the gratings so that the device gives a swept frequency output. The shapes of layers 15, 16 are complementary, in that they would form a trapezium if combined, and the indent and narrowest parts of layer 15 introduce phase changer of # and #/2 respectively so that waves reflected at the ends of the gratings cancel at the combined output 17 and waves reflected at the centres are in phase. Alternatively elements 7, 8 may be equallyspaced, in which case the metal layers would combine to form a rectangle. In the modification of Fig. 4 (not shown) tracks 3, 4 lie on opposite sides of input transducer 2 and a single output transducer is used. In an alternative arrangement two input transducers may be used.
Patent GB-1065671-A (GB)
Title: Apparatus for testing materials
IPC: G01N3/08
Filed: 1964-05-22
Abstract: 1,065,671. Expanding rollers. LAWSON HEMPHILL Inc. May 22, 1964 [May 22, 1963], No. 21149/64. Heading F2U. [Also in Division G1]  An expandable bobbin or pulley-for use in apparatus for measuring the stress/strain characteristics of yarn &c. (see Division G1)- comprises flanges 64 having radially extending slots 65 in which fit the ends of slats 66 of the expandable hub, and end discs 68 in spira grooves 69 of which fit pins 70 extending out  wardly from the slats so that on rotation of the end discs relative to the flanges and hub, the hub is expanded or contracted. The end discs 68 are rotated by shaft 42C and the flanges and hub by sleeve 41C. Shaft 42C normally rotates with sleeve 41C but on handles on the machine frame being turned, the shaft through a planetary gear arrangement rotates relative to the sleeve. A spring 72 is fixed at one end to cover 71 connecting sleeve 41C to flange 69 and at the other end to disc 68, and eliminates any backlash in gear trains driving the shaft and sleeve.
Patent GB-1412154-A (GB)
Title: Vehicle cleaning apparatus
IPC: B60S3/06
Filed: 1973-05-03
Abstract: 1412154 Vehicle cleaning apparatus TAKEUCHI TEKKO KK 3 May 1973 [19 May 1972] 21152/73 Heading B7J. A vehicle cleaning apparatus comprises a brush 6 suspended from a brush-carrying arm 7 which is fast with a shaft 5 journalled in a free end of a support arm 4, the arm 4 being pivotally mounted by a shaft 3 in brackets 2, 2<SP>1</SP> on a portal frame 1, and wheels 10 and 14 fast with the shaft 5 and bracket 2 respectively being connected by a transmission mechanism such that rotation of the brush-carrying arm 7 causes simultaneous rotation of the support arm 4 at a rotational speed higher than that of the arm 7. The transmission mechanism comprises a gearwheel 12 and chain sprocket wheel 13, both carried by an intermediate shaft 11 journalled in the arm 4, the gear-wheel 12 meshing with gearwheel 10 and the sprocket wheel 13 being connected to chain sprocket wheel 14 by a chain 15. The support arm 4 carries a projection 19 which is biased to abutment with a stop 18 on the frame 1 by a counterweight 17 on a flexible cable 17<SP>1</SP>, but the arm 4 is moved away from this position of abutment when a vehicle contacts the brush 6, exerting pressure between the brush and vehicle.
Patent GB-205058-A (GB)
Title: Improvements in and relating to electron discharge devices and circuit arrangements therefor
IPC: H04B1/16
Filed: 1923-08-21
Abstract: 205,058. British Thomson - Houston Co., Ltd., (Assignees of Hull, A. W.). Oct. 3, 1922, [Convention date]. Thermionic amplifiers and detectors. - A thermionic device comprises a main cathode, heated by electron discharge and radiation from an auxiliary cathode, a control electrode, and an anode, the auxiliary cathode being heated by current from part of the secondary of a transformer which is also connected with the anode. As shown in Fig. 1, the auxiliary cathode 2, preferably in the form of a straight filament surrounded by a cylindrical main cathode 5, is connected across part of the secondary 13, one end of which is connected with the cathode 5, and through a telephone receiver 16 with the anode 9, resistances 14 and condensers 15 being interposed as shown for smoothing out fluctuations in the current.. It is stated that with this system of connections rectified current is supplied to the anode. The outer surface of the cathode 5 may be coated with a thermionically active material so that electrons are emitted therefrom at a temperature low in comparison with that of the inner surface. In the device shown in Fig. 4 for obtaining rectification of both half waves, a coiled auxiliary filament 2 suspended on supports 17,. 18, 19 is heated from an ordinary lighting circuit, and the cylindrical main cathode 5 is provided with a flange 20 for shielding the electrons from the electrostatic field of the filament 2 and its supports. In the arrangement shown in Fig. 2, a valve is connected to the lamp socket, and the lighting circuit is used as a wireless receiving antenna. For this purpose a point on the transformer 22 is earthed and the main cathode 5 is connected through an inductance 23 and a variable condenser 24 to earth. The grid 7 is connected with the other end of the inductance, as shown. A retroactive coil 27 may be connected in the anode-cathode circuit.
Patent GB-1284042-A (GB)
Title: Improvements in or relating to crushers and a method of feeding material to them
IPC: B02C2/00
Filed: 1971-04-19
Abstract: 1284042 Gyratory crushers REX CHAINBELT Inc 19 April 1971 [6 Feb 1970] 21196/71 Heading B2A A bowl liner 34 particularly for a gyratory crusher comprises a generally frusto-conical portion 36 and an upper generally cylindrical portion 38. A shoulder 48 is mounted on the inner surface of the neck, preferably by welding. The shoulder may comprise square section bar, which may be continuous or in segments. The shoulder protects the neck from wear due to churning of material, as indicated by the arrow 32. More than one shoulder or bar may be used. The outer surface of the neck 38 has a surface 52 to assist in positioning the liner. The crusher includes a feeder, distributorchute or baffle arrangement disposed on or above the head 16.
Patent GB-994180-A (GB)
Title: Improvements in or relating to couplings for trailer vehicles
Inventor: BOWDEN WILLIAM TURNER
IPC: B60D1/06
Filed: 1961-06-13
Abstract: 994,180. Ball-and-socket vehicle couplings. PEAK TRAILER & CHASSIS Ltd. June 13 1961, No. 21213/61. Heading B7T. A ball - and - socket coupling comprises a spring pressed ball engaging plunger 13, and a spring pressed wear pad 32 the axis of which is tangential to the surface of the ball and at an obtuse angle to the axis of the plunger. A plunger locking pin 15 has a collar 19 pinned thereto by a cotter 20, and when the limbs 24 of a locking padlock are removed, the pin may be lifted against its spring by the handle 22 to disengage the pin head 17 from the hole 23 in the housing 5 and permit the handle and plunger 13 to be displaced rearwardly to release the ball. The collar 19 moves in a slot 21 during movement of the plunger, and a pin 30 engaging a slot 29 in the handle prevents rotation of the handle and serves also to fix the housing to the shaft 11. The slot 21 is covered at all times by a rubber washer 28 clamped between the handle and a shoulder on the collar 19.
Patent GB-428900-A (GB)
Title: A new or improved method of and means for bending sheet or strip metal
IPC: B21D5/06
Filed: 1934-07-20
Abstract: 428,900. Flanging strip. EASTWOOD, G. W., 18, Tile Hill Lane, Coventry. July 20, 1934, Nos. 21233 and 27566. [Class 83 (iv)] In a machine for flanging strip b held between a lower jaw c and an upper reciprocated jaw, a die a with projections a<1> engaging grooves c<1> in the jaws is traversed by hand along the jaws to flange progressively the exposed edge b<1>. In a modification the die a is pivotally mounted in a holder and is oscillated to hammer the edge as the die is traversed to assist the flanging. The die may be oscillated by a flexible shaft and crank mechanism.
Patent GB-336266-A (GB)
Title: Improvement in coin sorting devices
IPC: G07D5/04
Filed: 1929-07-10
Abstract: 336,266. White, A. E., (Norske Automatfabrik Aktieselskapet). July 10, 1929. Coins, testing.-In a coin-testing device which is adjustable for coins of different diameter and which comprises two hinged plates 1, 2 with a coin channel 3 between them, a detachable distance piece 14 situated near the outlet of the channel is adapted to co-operate with a weighted trap lever 13 to stop coins which have the correct diameter but which are too light. The channel 3 is formed as a groove in the plate 1 and is adjusted for coins of different diameters by detachable distance pieces such as 7. The plane of the plates 1, 2 is inclined so that a coin, the diameter of which is too small, will tilt outwards through an opening 6 formed in the plate 2 as also will a coin which is too heavy on its depressing a lever 9. The lever 13 is such that it is not depressed by a coin of insufficient weight, so that such a coin is held between the stop 14 and the lever. Thin coins pass through a slot in the bottom of the channel, the width of which may be controlled by means of the screw 4.
Patent GB-457700-A (GB)
Title: Method of and apparatus for testing subscriber's stations in ordinary service on a telephone system
IPC: H04M1/24
Filed: 1936-07-31
Abstract: 457,700. Telegraphones. SOC. TELEFONICA INTERREGIONALE PIEMONTESE E LOMBARDA, S.T.I.P.E.L., and OGLIETTI, G., 10, Via Confienza, Turin, Italy. July 31, 1936, No. 21298. [Class 40 (ii)] [See also Group XXXIX] Phonographic apparatus called a phone repeater which is provided at a telephone exchange for testing the efficiency of substation instruments comprises a ribbon 4 of magnetic material located in a helical groove in a record drum 3 and co-operating with recording, reproducing and cancelling magnets 5, 6, 7 on a laterally sliding carriage 20. The drum is driven by a motor 18 through a clutch controlled by a magnet 11. Due to the engagement of the magnets in the groove, the carriage moves from left to right as the drum rotates, and at the end of the traverse a magnet 23 lifts the carriage and allows it to return to its starting position. The magnet 23 is controlled by contacts 32 closed by the carriage in its extreme position. The circuits are such that the clutch magnet 11 is disconnected at contacts 27-29 operated by the carriage in its normal position after two traverses have been made.
Patent GB-588623-A (GB)
Title: Improvements in building sections
IPC: E04B1/348
Filed: 1945-02-28
Abstract: 588,623. Building units. SINGER, O. Feb. 28, 1945, Nos. 21315/44 and 26050/44. [Class 87 (i)] A building unit comprises integral roof, wall and floor sections a, a', a<2>, and may be in the form of a metal or concrete frame c, e covered with inner and outer shells d of, for example, plywood, and aluminium and balsa wood, respectively. A modified unit is in the form of two such units back to back.
Patent GB-871436-A (GB)
Title: An improved sealing end for entry into a transformer or like casing of a single-core high-tension electric cable
IPC: H01F27/04
Filed: 1958-07-03
Abstract: 871,436. Cable terminations. PIRELLI S.p.A. July 3, 1958 [Oct. 26, 1957], No. 21322/58. Class 36. A single-core, fluid-filled, high-tension cable is sealed into a transformer or like casing 18 by means of the arrangement shown. The cable conductor 5 is connected to the conductor 17 within the casing by a connector 4 which is screened by, and sealed to, a conductive ring 1. The ring 1 is embedded within a sleeve 2 of thermosetting synthetic resin provided with an external flange 21 to which the flanges of the casing and the conical cap 6 are secured. The connector 4 is provided, on the side to which the cable is joined, with a duct 10 by which the space containing the insulating fluid within the cable is placed in communication with the conical cap. Specifications 752,376. 752,377, 775,084 and 782,256 are referred to.
Patent GB-667980-A (GB)
Title: Improvements in or relating to guards for the cooking rings of electric and gas cookers and the like
IPC: F24C15/36
Filed: 1949-08-17
Abstract: 667,980. Guards for cooking-stove hotplates. FLETCHER, J. J. June 28, 1950. [Aug. 17, 1949] No. 21373/49. Class 126. A guard for the hot-plate of a gas or electric cooker comprises a three-side wire mesh frame 1, flared outwardly towards its upper edge 2 and secured to the cooker top by clips 6 connected to the guard by springs 7. Alternatively, the frame may be hinged to the rear edge of the hot-plate so that it may be swung upwardly into an inoperative position.
Patent GB-1530063-A (GB)
Title: Reduction of the cyanide content of aqueous waste streams
IPC: C02F9/00
Filed: 1977-05-23
Abstract: 1530063 Purifying aqueous wastes to remove cyanide ions MONSANTO CO 23 May 1977 [24 May 1976] 21563/77 Heading C1C A process of treating an aqueous stream containing cyanide wastes in a concentration of up to about 1000 ppm of said contaminant comprises contacting said stream with formaldehyde and a compound which will generate HSO 3 -at a temperature from about 80‹ to 135‹ C. while maintaining the pH of the reaction mixture in the range from 8 to 12 for a period of time sufficient to reduce the cyanide content to less than 1 ppm using a HCHO/CN- molar ratio of at least one and an HS0 3 -/CN- molar ratio from about 1À0 to about 1À5.
Patent GB-712253-A (GB)
Title: Improvements relating to toys
IPC: A63H11/04
Filed: 1951-09-13
Abstract: 712.253. Toys. PERRIN, F. Dec. 15, 1952 [Sept. 13. 1951], No. 21575/51. Class 132(3) A representation of a woodpecker 1 moves under gravity down a rod 4 in a series of jerks after the figure has been 'set in slight vibration in a vertical plane. The figure is attached to a slider 3 by means of a closecoiled spring 2. the slider having a bore 5 by which it is mounted on the rod 4 with limited play. The rod is resiliently mounted in a spring 11 which is secured at its lower end in a socket formed in a base 10.
Patent GB-242573-A (GB)
Title: Improvements in mixing and kneading machines
IPC: A21C1/04
Filed: 1925-08-28
Abstract: 242,573. Haagen & Rinau, and Rinau, W. Feb. 21, 1925, [Convention date]. Rotary batch-mixers. -In a mixing or kneading machine of the kind in which rotating beaters work in a rotating pan, the beaters c, d are mounted in a plane which is tangential to the conical surface developed by the bent part b of the beater shaft. The beaters at the upper part of their path lie in a plane parallel to and above the upper edge of the pan, thus enabling the latter to be removed. The beater c is further from the end of the shaft b than the beater d and its path lies further from the pan bottom.
Patent GB-1242985-A (GB)
Title: Method of freeze drying
Inventor: ELERATH BYRON EVERETT
IPC: F26B5/06
Filed: 1970-05-05
Abstract: 1,242,985. Instant coffee. GENERAL FOODS CORP. 5 May, 1970, No. 21668/70. Heading A2B. [Also in Division F4] To reduce the entrainment of fine particles by the flow of sublimed water vapour during vacuum freeze drying of coffee extract, slight surface thawing of the frozen particulate matter is allowed (at a temperature between 0‹F. and -5‹F. for up to 6 minutes) and refreezing effected, before freeze drying is begun (at a temperature less than -30‹F. It is stated that the surface thawing and refreezing causes the fine particles to tend to adhere to the larger particles during rapid freeze drying and that after drying the particles tend to separate freely during handling The coffee extract is frozen by blast, tunnel or belt freezing, or slow freezing in a cold chamber, and then comminuted by single or multiple grinder (some fine particles may be screened out prior to drying). The frozen comminuted particles are then loaded into ribbed trays (e.g. as described in Specification 1,000,545) or a shelf-cart (e.g. as described in Specification 1,184,207) in the cold room (at -30‹F. to -40‹F.), and then placed in the freeze drying chamber (at less than 500 microns of Hg). The surface thawing is carried out either in the cold room by maintaining the trays to a temperature (above the eutectic point) of from 0‹F. to -5‹F. for 5 minutes, or in the freeze drying chamber by maintaining -5‹F. for 4 minutes (the chamber being isolated from the vacuum source so that the pressure rises from 600 to 800 microns of Hg, e.g. to 675 microns).
Patent GB-460591-A (GB)
Title: Improvements relating to electric cables
IPC: H01B11/00
Filed: 1935-07-31
Abstract: 460,591. Cables. SIEMENS BROS. & CO., Ltd., and FOSTER, A. E. July 31, 1935, No. 21737. [Class 36] A cable of the air-space type comprises a tube of low loss thermoplastic insulating material, such as polystyrol, surrounding a conductor which is centred within the tube by being formed at intervals along its length with projections, e.g. of wave shape, which locally bear on substantially diametrically opposite points of the inner wall of the tube. The tube mav be surrounded by a screen or return conductor formed of metal strip, and may be sheathed with lead. A plurality of cables,. with or without individual metallic coverings, may be enclosed by a common sheath. The Figure shows a conductor 1 having spaced wave-like projections 2 which support the conductor centrally within a tube formed of wrappings 3a, 3b, 3c of polystyrol or a mixture of polystyrol and a plasticizer. The wrappings 3a, 3b, which are in opposite directions, are applied with a long lay. A return conductor or screen, consisting of copper strips 4 held in place by a copper tape binding 5, is applied over the wrapping 3c. A lead sheath b, surrounded by armouring wires 8, embedded in jute servings 7, 9, complete the cable. Successive projections 2 may be staggered about the axis of the conductor. In a modified construction the wrappings 3a, 3b, 3c are replaced by an extruded tube. Specification 452,772 is referred to.
Patent GB-266765-A (GB)
Title: Improvements in, and relating to, the generation of gas from liquid hydrocarbons forcombustion, lighting and other purposes
IPC: C10G9/00
Filed: 1925-09-01
Abstract: 266,765. Goldsbrough, R. E., and Goldsbrough Patents Co., Ltd. Sept. 1, 1925. Vaporizing-apparatus.-Gas is generated from liquid hydrocarbons by forming a mixture of the hydrocarbon with an atomizing agent, and introducing a decarbonizing agent such as steam into the mixture which is then allowed to expand and is passed through heated passages which may have a catalytic action, the resulting gas being led to a burner or gas-holder. Oil from a pipe 6 is heated in a steam heater 5 and passed by a pipe 7 and valve 24 to nozzles 15 delivering into a fanshaped mixing chamber 2 to which steam is supplied from a pipe 25 and central nozzle 16. Each nozzle 15 comprises a cylindrical casing 18 containing a member 27 the central portion 28 of which is a close fit and serves as a piston, one face 33 of which is subject to the oil pressure and the other face 34 to steam pressure, a spring 87 of adjustable tension pressing the conical end 36, in which is a steam discharge opening 20, against the seating 19 in the chamber casing 14. When the oil and steam valves 24, 26 are opened, the mixed fluids flow into the mixing chamber 2, but when the valve 44 of the central nozzle 16 is opened the pressure on the member 27 is relieved and the oil inlet between the conical end 36 and 19 is widened so that the amount of steam supplied to the chamber 2 can be increased until a surplus of steam is present. The mixture then enters an expansion chamber 57 leading to a gasifying chamber 3 formed by conical members 46, 47, external ribs on the member 46 engaging the member 47 to form a spiral passage 3. The members 46,47 are made of chromium-nickel alloy and exert a catalytic action preventing the deposition of carbon and promoting the formation of methane. The gas is led by a pipe 58 to a burner nozzle 60, a pipe 61 leading to a gas holder. Air for combustion is supplied through louvres 64 in a casing 62 and a further supply is admitted through adjustable openings 74 in a ring 72. Specifications 215,801 and 226,676 are referred to.
Patent GB-251829-A (GB)
Title: Improvements in or relating to catamenial bandages and supports
IPC: A61L15/16
Filed: 1925-09-03
Abstract: 251,829. Whitlock, E. C. Sept. 3, 1925. Abdominal belts.-The belt comprises several pieces of fabric stitched together, elastic strips 18 being provided between the back portion 19 and the hip portions 19'. Stays 20 of whalebone or non-rustable metal are provided. The belt is fastened in front of the right hip, the joining edges being provided with stays fitted with eyes and pins or beads. A reinforcing band of strong material may be stretched across the front of the belt as an abdominal support. The front of the belt is provided with a tapered portion 25 fitted with a tab 24 and the rear of the belt is provided with a detachable elastic band 27 to which a catamenial appliance may be secured. Adjustable straps 31 for connection to the sides of the catamenial appliance, and stocking supports 36 are also provided.
Patent GB-477146-A (GB)
Title: Supporting main crankshaft bearings
IPC: F16C9/02
Filed: 1937-08-12
Abstract: 477,146. Crank - shaft bearings. ARMSTRONG SIDDELEY MOTORS, Ltd., FELL, L. F. R., and TOWNS, H. L. Aug. 12, 1937, No. 22149. [Class 12 (i)] The main crank-shaft bearings 13 of an internal-combustion engine are each carried by a circular plate 14 fitted in a tubular bore 23 in the crank-case and detachably tied thereto at a number of places round its periphery by bolts 25 extending from outside the crank-case. As shown each bolt 25 screws into a plug 20 located in a transverse hole 19 in the plate 14. The plate is divided diametrically, the halves being bolted together. The plugs 20 are preferably of steel and the plate of an aluminium alloy.
Patent GB-477471-A (GB)
Title: An irish martingale for racing saddlery
IPC: B68B1/04
Filed: 1936-08-12
Abstract: 477,471. Harness. HITCHCOCK, F. C. Aug. 12, 1936, No. 22160. [Class 62] An Irish martingale terminates in rings A provided with spring bolts B so that the reins may be readily inserted therein.
Patent GB-1129764-A (GB)
Title: Heat insulated pipe aggregate
IPC: F16L59/12
Filed: 1966-05-18
Abstract: 1,129,764. Insulating and supporting pipes. E. RYGH, [trading as INDUSTRI-ISOLERING E. RYGH]. 18 May, 1966 [21 May, 1965], No. 22181/66. Heading F2P. In a heat-insulated pipe support assembly, one or more pipes 16, 17 are freely rested on longitudinally spaced supports 7 (one only being shown) in the lower of rigid foamed plastics trough-shaped sections 1 and 2 constituting a support and heat - insulating casing which envelops and is spaced from said pipe or pipes. The arrangement permits free lateral and axial movement of the pipe or pipes due to thermal expansion or contraction without damage to the insulation. The trough-shaped sections, preferably of foamed polyurethane, are adhered at 10 and may be provided with a waterproof plastics cover and also a glassfibre-reinforced polyester coating. A continuous foil inner layer 4, such as aluminium or aluminium-coated plastics, may be provided. Each support 7 comprises rollers 6 on a shaft 8, which shaft is journalled in the side walls 12 and 14 of a U-shaped metal support member embedded or mounted in the lower troughshaped section. An inverted U-shaped yoke 5, having a removable centre portion 18, is also fixed to the side walls of the metal support member to protect the trough-shaped sections from damage on excessive radial or lateral movement of the pipe or pipes. The pipe or pipes may be restricted against radial movement only at distantly spaced point by clamps on long pipe runs.