baber/WOPTO huggingface dataset:
Patent GB-1426229-A (GB)
Title: Rocket
Inventor: GUSTAFSSON M E
IPC: F42B12/70
Filed: 1973-06-14
Abstract: 1426229 Rockets BOFORS AB 14 June 1973 [16 June 1972] 28475/73 Heading F3A A rocket for dispersing radar reflecting material, comprises: a casing 3 enclosing the reflecting material (not shown); locking means 32 connecting the casing 3 to the main body of the rocket; and an ignitable charge 36 for releasing the locking means and removing the casing to expose the reflecting material. A tube 7, connected at its forward end to the casing 3, is slidably received within a tube 12 attached to the main body of the rocket. The locking means is comprised by balls which move radially inwardly to unlock tubes 7 and 12 when a piston 22 and a sleeve 21 are driven forwardly by the gas pressure from the charge 36. Continued forward movement of the sleeve 21 causes balls 23 to release the piston 22 which is then driven from the sleeve 21 by the gas pressure. The gas channels 23 thereby opened allow gas to enter the tube 7 so that it moves forwards and lifts off the casing 3 to expose the reflecting material. A perforated plate (not shown) connected to the forward end of tube regulates the air flow impinging on the reflecting material and therefore its rate of distribution.
Patent GB-175337-A (GB)
Title: Improvements in pit tubs and the like railway or tramway vehicles
IPC: B61D11/02
Filed: 1920-10-09
Abstract: 175,337. Milnes, G., and Milnes, E. R. Oct. 9, 1920. Sides; floors. - In colliery corves and like railway or tramway vehicles of the kind in which the sides and ends are formed with interengaging ,portions assembled by a relative sliding movement, the interengaging portions b, c are formed by bending or rolling the edges of the sides and ends so that when assembed they form a circular, squares or like hollow roll adapted to receive the means for securing the sides and ends to each other and to the base e. In the construction shown, the connecting-means comprise bolts g passing through the hollow rolls and through holes in the base and having threaded ends to receive nuts h. The base is preferably formed with a vertical flange f, and the sides and ends may be strengthened by horizontal corrugations.
Patent GB-173623-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M69/08
Filed: 1920-10-09
Abstract: 173,623. Erade, C. J. Oct. 9, 1920. Spray carburettors.-Liquid fuel, supplied' from a constant-level chamber 1 to a fuel pipe 2,. is drawn from the pipe and supplied in an atomized condition to the induction pipe 5 by a jet of compressed air supplied by a compressor 8 through a nozzle 7, the mixture throttle valve 11 being coupled to means for regulating the volume of compressed air delivered at the nozzle 7. As shown, the throttle valve 11 is connected by a rod 13 with a valve 12 controlling the air inlet to the compressor. Non-return valves 14, 15 are provided in the air pipe 6. The crank 18 of the compressor is so coupled to the engine that the delivery period of the compressor synchronizes with the whole or part of the suction stroke of the engine. A cut-off valve 19, which may be coupled with either of the valves 11, 12, and a non-returnvalve 20 are provided in the fuel pipe 2. To facilitate starting, an opening 21 for the introduction of light fuel and a draining-cock 24 may be provided on the fuel pipe 2. In a modification, the air pipe 6 is arranged at the side of the fuel pipe 2 and is connected thereto by a lateral passage. In modifications, the volume of air delivered at the nozzle 7 is varied either by altering the strength of the spring 16 controlling the valve 14 by means of a screw plug, or by providing a valve in the air supply pipe, in either case a relief valve being provided in the compressor or in the delivery pipe between the valve and the compressor. In both' cases the valve is connected to the throttle valve 11. In a further modification, the cylinder of the air compressor or the air delivery pipe is provided with a spring-loaded valve the pressure on which can be varied by an adjustable plug connected with the throttle valve. According to the Provisional Specification, a plurality of pipes may be provided for supplying different fuels or fuel and water.
Patent GB-670878-A (GB)
Title: Improvements in and relating to pulse discriminators
IPC: H04N5/08
Filed: 1948-11-04
Abstract: 670,878. Radio-noise suppression circuits; pulse discriminator circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 4, 1948 [Nov. 12, 1947], No. 28698/48. Classes 40 (v) and 40 (vi). In a pulse width discriminator the incoming signals are delayed and a signal comprising the addition of the original and delayed voltages is applied to a clipper valve stage which is biased to pass only the wanted pulses of longer duration which are present at an enhanced amplitude. Fig. 1 shows a circuit for separating the synchronizing signals in a television signal 2 from noise pulses of shorter duration. The incoming signal is applied to a delay line 8 which has a delay which is just less than the duration of the shortest pulse it is desired to transmit so that wanted pulses appear at the clipper 14 with an enhanced amplitude. The stage 14 is biased to pass only signals of greater amplitude than that of the synchronizing signals in the incoming signal 2 so that both the video signal and unwanted short duration noise signals are suppressed and the wanted line and frame synchronizing signals appear at the output 18. In a modification, Fig. 4 (not shown), the delay line comprises two capacitatively coupled inductors wound in opposite directions on an insulated former. In a further modification shown in Fig. 5 the combined line and frame synchronizing pulses are separated by a further delay circuit 8<SP>11</SP> in the output of the clipper 14 which is followed by a further clipper stage (not shown), which passes only the frame synchronizing pulses of enhanced amplitude which appear at terminal 36. The line 8<SP>11</SP> has a delay which is greater than the duration of the line synchronizing pulses and less than that of the frame synchronizing pulses.
Patent GB-919649-A (GB)
Title: Improvements in mechanical latching devices for electric relays
Inventor: JELLEY GORDON ALBERT
IPC: H01H51/10
Filed: 1960-03-10
Abstract: 919,649. Electrically tripped switches. CRABTREE & CO. Ltd., J. A. March 2, 1961 [March 10, 1960], No. 28732/62. Divided out of 919,648. Class 38 (5). A latched contactor is released when the armature of an adjacent contactor is moved on energization thereof. As shown, a pin 55 movable with the armature assembly projects from the side of the contactor A and engages in slots 58, 59 in a U-shaped member 46 pivoted at 51 and biased by a spring 61 so that when the contactor coil is energized the assembly is latched by the engagement of the pins 55 in slots 59. The armature assembly is thus held in its attracted position until it is released by rotation of the member 46 by a projection 62 on a U-shaped lever 47 on an adjacent contactor B which has a pin 55 carried by its armature assembly and engaging in a slot Go in the lever 47 so as to rotate it when the contactor B is energized. The contactor B may release contactor A mounted on each side thereof on a common base.
Patent GB-285546-A (GB)
Title: Combined drying chamber plant and grate furnace
IPC: F26B23/02
Filed: 1926-11-15
Abstract: 285,546. Herrmann, G. Nov. 15, 1926. Drying - furnaces. -Solid fuel is burnt to heat up quickly a mass of chequer brickwork 3 interposed between a grate and a drying- chamber, and the heat absorbed by the brickwork is then utilised to maintain for a longer period a stream of hot air in the drying-chamber. In the construction shown the brickwork 3 is arranged above the grate 1, and above the open ends of side flues 2 leading from the fire-place. The drying-chamber has no communication with the atmosphere except through the chimney and the fire-place. The bricks forming the chequerwork may be tapered upwards to minimize deposition of dust.
Patent GB-219856-A (GB)
Title: Improvements in spark plugs
IPC: H01T13/46
Filed: 1923-11-15
Abstract: 219,856. Steinacher, R. Nov. 15, 1923. Sparking - plugs; external spark gaps.-An adjustable external spark gap is formed between the outer end of the central electrode and a rod 31 mounted in an insulator 29 which is supported by a sleeve 27 encircled by a cylindrical extension 23 on the gland nut 20. The spark gap may be inspected by bringing into register holes in the sleeves 23, 27, the relative movements of the sleeves being restricted by a bayonet joint consisting of a slot 50, 55 in the sleeve 23 and a struck-out tongue 52 in the sleeve 27. In addition to the fine adjustment for regulating the size of the spark gap, the outer portion of the electrode may be lifted or removed quickly out of sparking range for the purpose of testing the ignition by making use of the bayonet joint. A longitudinally moving sleeve may close the above-mentioned apertures, instead of this being effected by the relative rotation of the. parts.
Patent GB-847591-A (GB)
Title: Improvements relating to binary counting arrangements
Inventor: PEARCE FREDERICK MELVILLE
IPC: H03K23/74
Filed: 1956-09-20
Abstract: 847,591. Counting-apparatus. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Dec. 9, 1957 [Sept. 20, 1956], No. 28798/56. Class 106 (1). In a binary relay pulse counting circuit a bistable element comprises an electromagnetic " lock-on relay " having two operating coils each adapted on energization in either direction to actuate a contact in a corresponding direction and an auxiliary relay arranged on the cessation of each pulse through one coil of the locking relay to provide a path for the next input pulse through the other coil of the lock-on relay, the arrangement of the two paths of the input pulses through the respective coils of the lock-on relay being such that successive pulses move the contact into alternate positions. As shown, Fig. 2, an additive input energizes a relay 1P through a contact 1Q1 and the righthand coil of the relay 1P, to close contact 1P1, the subsequent opening of the input switch completing a circuit through the right-hand coils of the relays 1Q and 1P to change over the contact 1Q1 so that the next additive input passes through the left-hand coils of both relays thereby opening the contact 1P1. On the subsequent opening of the input switch the relay 1Q is de-energized to return the first counting stage to its original " 0 " state. The second counting stage has been operated to its " 1 " state by the second additive input pulse, over a contact 1Q2 which is changed over when the relay 1Q energizes. In this way a count of the additive input pulses is registered by the chain. Pulses to be subtracted are derived from a separate switch and energize such of the counting chain stages as may be reached over the lower " gate contacts " 1Q2, 1Q3, 2Q2, 2Q3, &c.
Patent GB-339698-A (GB)
Title: Improvements relating to gas and water valves or taps for geysers and the like
IPC: F24H9/20
Filed: 1929-09-23
Abstract: 339,698. Coupade, C. de. Dec. 27, 1928, [Convention date]. Fluid-actuated fuel valves for water heaters.- In a combined gas and water valve for geysers, the valve casing 1 is provided with two chambers 2, 3 permanently separated by a wall 16, and the water inlet 4 carries a perforated bell 6 constituting the inlet water valve. A weight 12 bears on the bell 6 and is carried by a lever 11 pivoted on a spindle 9 which passes through the wall of the water chamber 2 without packing. The outer end of the spindle 9 is attached to a lever 13, on which rests the spindle 22 of the gas valve 18 which is weighted at 21 and seats at 17 in a chamber 14 formed by a cap 20 which screws on to the extension 16 of the valve casing. The gas inlet 15 is formed in the cap 20 and communicates with the chamber 14, and the outlet 19 communicates with the chamber 3. When the chamber 2 is opened to atmosphere by opening the water tap. the bell 6 is raised by fluid pressure under it and opens the water valve and at the same time the lever 13 raises the spindle 22 and the gas valve 18.
Patent GB-469709-A (GB)
Title: Opening device for tins
Filed: 1936-10-23
Abstract: 469,709. Cans &c. NORLAND, T. Oct. 23, 1936, No. 28912. [Class 66] The slip-on lid of a can &c. is provided with a cutter formed from the substance thereof and adapted when moved into operative position to remove the underlying tagger cover, slits, or weakened lines adapted when broken through to afford slits, extending from the root end of the cutter in a direction away from the point providing a tab portion, pressure upon which effects the desired movement of the cutter into operative position. In the construction shown in Fig. 1 the tab is defined by slits 9 formed in an enlargement 8 of the lid flange, the bent-down cutter 2 normally resting outside the wall 3 of the can. In Fig. 4 the cutter lies normally in the plane of the lid top and is bent downwardly for use by raising the tab portion 11 lying between the slits 10. In Fig. 10 the cutter 2, which is set in at'12 to rest against the outside wall 3, is moved to operative position by pressure on the tab portion lying between the slits 9. In the form shown in Fig. 7 the slits 101 extend from points adjacent the root of the outwardly directed cutter 2 to form a tab portion 11<1> lying inwardly of the cutter.
Patent GB-811390-A (GB)
Title: Impregnated electric current collecting brushes and electric contacts
Inventor: COAD BRIAN COLLIVER
IPC: H01R43/12
Filed: 1956-09-21
Abstract: 811,390. Impregnated electric contact brushes. MORGAN CRUCIBLE CO. Ltd. Sept. 21, 1956, No. 28979/56. Class 140. A process for the manufacture of electric current collecting brushes and electric contacts comprises the steps of (i) forming a mixture of powders of graphite and of an electricallyconducting metal and particles of a volatile pore-forming material; (ii) compacting the mixture under pressure; (iii) heat treating the compact to volatilize the pore-forming material and to sinter the porous body; (iv) impregnating the sintered body with an aqueous dispersion of a solid polymerized halogenated ethylene in which all the hydrogen atoms are substituted by halogen; and (v) heating the product to dry and sinter the solid polymerized halogenated ethylene. Specified polymerized halogenated hydrocarbons are polytetrafluoroethylene and polychlorotrifluoroethylene. A suitable metal is copper. Suitable pore-forming materials are urea and ammonium carbonate. The initial mix may be compacted by highpressure in a die or by extrusion. Impregnation of the sintered porous body may be carried out by first subjecting the body to a vacuum to remove air and then impregnating under pressure. In an example, a mixture of copper powder, graphite powder and urea powder is pressed in a mould and then sintered in a reducing atmosphere. The product is vacuumimpregnated with an aqueous dispersion of polytetrafluoroethylene and then dried and sintered. The product may then be re-pressed.
Patent GB-878199-A (GB)
Title: Improvements in derailleur type gears for bicycles and similar vehicles
IPC: B62M9/126
Filed: 1959-08-25
Abstract: 878,199. Chain-shift change-speed gear. HURET, A. M., HURET, R. M., and HURET, J. A. Aug. 25, 1959 [Oct. 2, 1958], No. 29002/59. Class 80 (2). Chain-shift change-speed gearing for bicycles &c. comprises a chain-shift wheel 7 mounted at the end of a parallelogram linkage 1, 9 ... 11 of which the link 1 forms a mounting bracket, the arrangement being such that on actuation of a control cable 12 to move a drive chain 5 from one to another of nested sprockets 4, the chainshift wheel moves substantially parallel to a line touching the teeth of the nested sprockets and located adjacent the guide wheel so that the chain is always guided thereon at approximately the same angle. The chain-shift wheel 7 is mounted between plates 6 carrying an idle wheel 8 biased by a coiled spring 19 to tension the chain. The spring 19 is surrounded by a case 18, which has an aperture coacting with a nut 20 1  fast with the support rod of the chainshift wheel 7. One end of the spring 19 engages a stop 6 1  fast with the plates 6, and the other end of the spring engages in the end of the case 18. On pushing the case 18 inwards, it is disengaged from the nut 20 1  so that it may be turned to tension the spring 19, release of tho case so that it re-engages the nut 20 1  holding it in a desired position. Adjustable stops 9 1 , 11 1  limit the movements of the pivoted links 9 ... 11.
Patent GB-1087017-A (GB)
Title: Methylenedioxyphenyl compounds and pesticidal compositions containing them
Inventor: POPJAK GEORGE JOSEPH
IPC: C07D317/68
Filed: 1965-07-08
Abstract: The invention comprises compounds of the formula <FORM:1087017/C2/1> in which X represents oxygen or sulphur, R and R1 are both hydrogen when X is sulphur, or each may be hydrogen or an alkyl group when X is oxygen, and Y is hydrogen or a halogen atom.  The compounds in which X is oxygen and both R and R1 are hydrogen are prepared by treating the appropriate methylenedioxybenzonitrile with an oxidizing agent, e.g. H2O2, in the presence of a base, e.g. an alkaline hydroxide. Those compounds in which X is oxygen and either or both of R1 and R are alkyl groups are made by reacting the appropriate piperonylic acid chloride with an amine NHRR1. The thioamides are prepared by reacting the nitrile with hydrogen sulphide in the presence of an organic base.  The compounds in which X is oxygen are synergists for insecticidal agents (see Division A5).  Examples are provided.ALSO:Insecticidal compositions comprising at least one organophosphorus or carbamate insecticide, contain, as a synergist, at least one compound of the formula <FORM:1087017/A5-A6/1> in which X is oxygen, R and R1 are hydrogen or an alkyl group and Y is hydrogen or a halogen atom.  The weight ratio of synergist to insecticide is preferably 0.3:1 to 10:1.  Specified insecticides are Bidrin (Trade Mark), 2-chloro-1-(2,4-dichlorophenyl) vinyl diethyl phosphate, dimethyl dichlorovinyl phosphate, N-3,4,5-trimethylphenyl-N-methyl carbamate, isolan (dimethyl-5-[1-isoPr-3-Me-pyrazolyl] carbamate).  The compositions may take the form of wettable powders, dusts, granules, concentrates, solutions, emulsifiable concentrates, emulsions or aerosols and may comprise a solid or liquid carrier and/or surface active agents. Examples are provided and contain comparative data relating to known synergists.
Patent GB-1466092-A (GB)
Title: Hose-pipe
IPC: B29C48/153
Filed: 1974-07-01
Abstract: 1466092 Flexible reinforced hose GATES RUBBER CO 1 July 1974 [2 July 1973] 29033/74 Heading F2P A flexible hose 10 comprises an extruded polymeric tube 12 having at least one integral external radially-extending rib 20, a reinforcing ply 14 of two oppositely helically wound layers of textile strands deforming the or each rib at each point of contact whereby the reinforcement 14 is mechanically held in fixed spaced relationship with the tube, and a cover 18. The polymeric tube may be of thermosetting materials, e.g. certain natural or synthetic rubbers or blends thereof, or of thermoplastic materials e.g. nylon or polyvinylchloride. The one or more, equally or randomly spaced, ribs extend longitudinally or helically along tube 12 and are of converging triangular shape. The reinforcement strands 14 may be of greige polyester or nylon. The strands are tensioned as they are helically wound to deform, cut, bend or otherwise displace portions 22 of the rib or ribs 20 at their points of junction. Undisplaced portions 24 of the ribs 20 thus form a pseudo-corrugation along the length of the tube which mechanically holds or positions each reinforcement strand. The rib height is sufficient to hold the strands in position. The cover 18 is applied over the reinforced tube, the undisplaced portions 24 of the rib extending into the cover forming a pseudo-corrugated mechanical interlock 28. Instead of cover 18 one or more layers having exterior formed ribs may be applied to allow for application of further reinforcing plies.
Patent GB-1441341-A (GB)
Title: Container closure
IPC: B65D50/04
Filed: 1974-07-01
Abstract: 1441341 Child proof container closure CLOSURE INDUSTRIES Inc 1 July 1974 29114/74 Heading B8T A resilient cover 16 is provided for overfitting a container screw cap 14 having cap engaging means for holding the cover in rotative association with the cap and locking means for gripping the locking means of the cap upon the application of radially inwardly directed forces. The cover 48 is secured over the screw cap 14 by the inwardly projecting groove 52 over the outwardly projecting lip 26 of the cap such that rotation of the cover relative to the cap is possible (Fig. 5). The inwardly projecting projections 42 and 44 on the cover engage in the knurled section 30 of the cap on the application of radially inwardly directed forces at the preferably roughened areas 48 and 50 such that rotation of the cover and cap occurs simultaneously (Fig. 7).
Patent GB-285170-A (GB)
Title: Improvements in or relating to feeding appliances or devices for birds or poultry
IPC: A01K39/014
Filed: 1926-11-18
Abstract: 285,170. Wardroper, A. E. Nov. 18, 1926. Feeding - appliances for poultry.-A hopper a has a hole c formed in its bottom b on which a plate d, provided with a hole e, rests. A pendulum comprising a wire f supporting a wooden bob h is pivotally supported on the lid g of the hopper and passes through the holes c, e. The fowls move the bob hand bring the holes more or less into alignment the grain in the hopper at the same time being disturbed so as to fall through the holes.
Patent GB-410680-A (GB)
Title: Improvements in refiners for paper pulp
IPC: B02C2/10
Filed: 1933-10-20
Abstract: 410,680. Paper-pulp-refining engines. WELSFORD, H. G., and RUSSELL, A. N., c/o Dominion Engineering Works, Ltd., P.O. Box 3150, Montreal, Canada. Oct. 20, 1933, No. 29141. [Class 96.] Coarse fibrous constituents of pulp to be treated in a conical refiner are impacted against a serrated inner surface of a cylindrical extension at the inlet end of the shell 11, preferably comprising two rings 17, by breaker arms 33, spaced from the serrations, and rotating with the plug 12, and are then forced into the main refining zone, treated pulp passing out at 21. The plug shaft 25 rotates in bearings 27 one of which is connected with plug adjusting mechanism 29, the opposite end of the shaft being coupled at 30 with a motor 31. The serrations of the rings 17 may be helical, and of V-cross-section. The breaker arms 33 are notched at their outer ends, and may be rigidly secured to a base ring 34 which is bolted at 36 to the plug 12 and preferably keyed to the shaft 25. In an alternative construction the arms 33 have slight swinging movement, trunnions being held in bushes in the plug by set-screws entering annular grooves in the trunnions.
Patent GB-706000-A (GB)
Title: A device for harvesting seaweed
IPC: A01D44/00
Filed: 1952-11-19
Abstract: 706,000. Harvesting seaweed. MATHESON, R. L. Nov. 19, 1952, No. 29190/52. Class 6 (3) For harvesting seaweed, such as Laminaria, a tubular device is drawn along the sea-bed to direct weed into a net (not shown) trailed behind it, the device having a front orifice XY with fixed cutters k mounted near its lower edge and protected from rock-damage by vertical fins Q mounted between the cutters, the device further consisting of a duct smoothly ascending to the outlet orifice D so that weeds will be drawn up the duct by the current while their stipes are severed by the cutters. The duct is divided longitudinally by a series of vertical plates b, c, d, between which pairs of knives k are mounted to present V-shaped cutting edges to the weedstipes. The plates extend below the duct to form smooth keels t<SP>9</SP> permitting the device to override obstructions. The top of the device comprises a chamber S which floods when submerged and may also incorporate a bouyancy tank (not shown). In a modification, for dealing with jagged rock-floors, the longitudinal plates have parallel lateral bulges which accommodate the cutters so that the latter are doubly protected against rock-damage.